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HomeMy WebLinkAboutUnalaska Geothermal Project Phase lB Final Rep Volume 2 1983ryo* 60 5 Va. v 1 Alaska Power Authority UNALASKA GEOTHERMAL PROJECT PHASE IB FINAL REPORT Volume 2 April 1983 By: Republic Geothermal, Inc. For: The Alaska Power Authority APPENDIX H PERMIT COMPLIANCE CORRESPONDENCE FOR 1982 FIELD OPERATIONS Appendix H-l Letter to United States Fish and Wildlife Service April 23, 1982 : REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS, CALIFORNIA 90670 TWX - 910.386.1696 (213) 945.3661 April 23, 1982 Mr. Fred Zeillemaker Refuge Manager, Aleutian Islands Unit U.S. Fish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 Dear Zeillemaker: We have received the approved copy of Special Use Permit No. AI-82-09, and we greatly appreciate your prompt attention to the processing of this permit. In accordance with Special Condition of Approval No. 8, attached is a list of personnel working under this Special Use Permit, including their esti- mated period of stay and their employer. Republic's on-site project manager is J. S. "Skip" Matlick; he may contact you from the field if conditions require. Should you have any questions, please do not hesitate to contact me or Dwight Carey. Sincerely, Tawna J. Vie Senior Environmental Planner TIN:ko Enclosure LIST OF PERSONNEL WORKING UNDER SPECIAL USE PERMIT NO. AI-82-09 Field Staff *J. Matlick (RGI) - P. Parmentier (RGI) - R. Corwin (HLA) - G. Arce (RGI) - S. Grabacki (D&M) - L. Peterson (D&M) - D. Ericson (D&M) - *Onsite Project Manager Affiliated Field Staff C. Nichols (ADGGS) - J. Reeder (ADGGS) - R. Motyka (ADGGS) - Supervisorial Personnel G. Huttrer (RGI) - P. DeJong (APA) - D. Carey (RGI) - T. Nicholas (RGI) - Construction Contractors ee CLOTS D. Pierce (PSI) - S. Richards (PSI) - Two Dutch Harbor residents (PSI) - P. Hamlin (TC) - One Technical Assistant (TC) - Tentative Field Dates saat ve field vates April 28 - May 30 April 28 - May 30 April 29 - May 27 April 29 - May 27 May 24 - May 28 May 24 - May 28 May 24 - May 28 2 to 3 days 2 to 3 days unlikely 2 to 3 days 2 to 3 days unlikely unlikely April 28 - May 2 April 28 - May 2 April 28 - May 2 April 28 - May 2 April 28 - May 2 Helicopter Contractors (Housed in Dutch Harbor) M. Staggs (ERA) One helicopter mechanic (ERA) - (On limited basis, as needed) April 28 - July 30 April 28 - July 30 (RGI) - (D&M) - (HLA) - (ADGGS) - (PSI) - (TC) - (ERA) - Alaska Power Authority (Project Proponent) 334 W. 5th Avenue Anchorage, Alaska 99501 (907) 277-7641 Republic Geothermal, Inc. (Prime Contractor) 11823 East Slauson Avenue : Santa Fe Springs, California 90670 (213) 945-3661 Dames & Moore (Principal Subcontractor) 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Harding-Lawson Associates (Geophysical Contractor) 7655 Redwood Blvd. Novato, California 94947 (415) 892-0821 Alaska Division of Geological and Geophysical Surveys (Affiliated Geological Research) 3001 Porcupine Drive Anchorage, Alaska 99501 (907) 479-7147 Production Services, Inc. (Camp Contractor) 4113 Ingra Street Anchorage, Alaska 99503 (907) 279-8550 Trident (Communications Contractor) P.O. Box 10-1158 Anchorage, Alaska 99511 (907) 345-1170 ERA Helicopters, Inc. (Helicopter Contractor) 6160 South Airpak Drive Anchorage, Alaska 99502 (907) 248-4422 Appendix H-2 Letter to United States Fish and Wildlife Service May 25, 1982 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 80670 TWX - 910.586.1696 (213) 945.3661 May 25, 1982 Mr. Fred Zeillemaker Refuge Manager, Aleutian Islands Unit U.S. Fish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 Dear Mr. Zeillemaker, We have received the approved copy of Special Use Permit No. AI-82-10. In accordance with Special Condition of Approval No. 8, enclosed is a list of personnel working under this Special Use Permit, including their estimated period of stay and their employer. Some of the personnel will continue from the geological work through the temperature gradient hole operations. Also, Republic will be rotating the on-site project managers at two week intervals. The geological and geophysical work is near completion and the temperature gradient hole drilling rig is scheduled to arrive in Dutch Harbor by May 26. It will be transported in pieces via helicopter to the drill site, and drilling is still scheduled to commence on June 1. The site chosen for the first temperature gradient hole is TG-D (shown on Figure 2 of Exhibit A of the Special Use Permit). The other two sites will be chosen after further data analaysis. We will keep you informed of the site selection as the information becomes available. We greatly appreciated your prompt attention to the processing of the Special Use Permit. Should you have any questions, please do not hesitate to contact me or Dwight Carey. Sincerely, Tawna J. Nicholas Senior Environmental Planner TIN/lcs Enclosure LIST OF PERSONNEL WORKING UNDER SPECIAL USE PERMIT NO. AI-82-10 Field Staff *R. Yarter (RGI) - *C. Isselhardt (RGI) - *G. Huttrer (RGI) J. Matlick (RGI) - S. Grabacki (D&M) - L. Peterson (D&M) - D. Erickson (D&M) - *Onsite Project Manager Affiliated Field Staff C. Nichols (ADGGS) - J. Reeder (ADGGS) - R. Motyka (ADGGS) - Supervisorial Personnel P. DeJong (APA) - D. Carey (RGI) - T. Nicholas (RGI) - Drilling Contractors C. Robinson, Supervisor (ESEI) - K. Stegman, Driller (ESEI) - D. Swafford, Helper (ESEI) - S. Brown, Helper (ESEI) - Plus one additional Driller and two additional Helpers (ESEI) - Construction Contractors Camp Cook (PSI) - D. Pierce (PSI) - S. Richards (PSI) - Two Dutch Harbor residents (PSI) - Tentative Field Dates May 26 - June 10 June 8 - June 30 July 14 - July 30 June 30 - July 15 August 9 - August 15 2 to 3 days in June 4 to 5 days in early August 4 to 5 days in early August 4 to 5 days in early August 2 to 3 days 2 to 3 days unlikely 2 to 3 days in July unlikely 2 to 3 days in June May 30 - July 30 May 30 - July 30 May 30 - July 30 May 30 - July 30 May 30 - July 30 May 25 - July 30 July 30 - August 4 July 30 - August 4 July 30 - August 4 Helicopter Contractors (Housed in Dutch Harbor) M. Staggs (ERA) April 28 - July 30 One helicopter mechanic (ERA) - (On limited basis, as needed) (APA) - (RGI) - (D&M) - (ADGGS ) (PSI) - (ERA) - (ESET) April 28 - July 30 Alaska Power Authority (Project Proponent) 334 W. 5th Avenue Anchorage, Alaska 99501 (907) 277-7641 Republic Geothermal, Inc. (Prime Contractor) 11823 East Slauson Avenue Santa Fe Springs, California 90670 (213) 945-3661 Dames & Moore (Principal Subcontractor) 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Alaska Division of Geological and Geophysical Surveys (Affiliated Geological Research) .3001 Porcupine Drive Anchorage, Alaska 99501 (907) 479-7147 Production Services, Inc. (Camp Contractor) 4113 Ingra Street Anchorage, Alaska 99503 (907) 279-8550 ERA Helicopters, Inc. (Helicopter Contractor) 6160 South Airpak Drive Anchorage, Alaska 99502 (907) 248-4422 Exploration Supply and Equipment, Inc. (Drilling Contractor) 6727 Seward Highway Anchorage, Alaska 99502 (907) 344-2589 Appendix H-3 Letter to United States Fish and Wildlife Service August 20, 1982 _ 800 Cordova, Suite 101 Dames & Moore | ee re oosor =e | (907) 279-0673 ===" | Telex: 090-25227 Cable address: DAMEMORE August 20, 1982 Mr. Fred Zeillemaker Refuge Manager, Aleutian Islands Unit U.S. Fish and Wildlife Service 1 Box 5251 AUG 28 1982 NAVSTA FPO . Seattle, WA 98791 RECEIVED Dear Mr. Zeillemaker: We will soon be undertaking the second and final phase of field work to develop the environmental baseline for Republic Geothermals's exploration on Unalaska Island. -Per Republic's request, here is a list of the Dames & Moore personnel who will visit the island. INVESTIGATOR SPECIALITY DATES Larry Morrison Geotechnical Engineering Aug 20-23 Larry Peterson* Water Quality Aug 30 - Sep 3 John Morsell Avian & Terrestrial Ecology Aug 30 - Sep 3 Craig Gerlach* Anthropology Aug .30 - Sep 3 Steve Grabacki Fisheries Aug 31 - Sep 3 *Subcontractor to Dames & Moore Our baseline investigation will be relevant to the 1983 deep well phase of geothermal exploration and to the potential overland access for the 1983 phase. If you have any questions or comments, please do not hesitate to contact us. Sincerely, DAMES «& MOORE Vy Ypllp i / LY. UV Stephen T. Grabacki Project Coordinator STG/ac cc: Appendix H-4 : Letter to United States Fish and Wildlife Service September 23, 1982 REPUBLIC GEOTHERMAL, INC. 11623 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX - 910-586-1696 (213) 9453661 September 23, 1982 Mr. Fred Zeillemaker Refuge Manager, Aleutian Islands Unit U.S. Fish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 Dear Mr. Zeillemaker: In accordance with Special Condition of Approval No. 10 for both Special Use Permit Nos. AI-82-09 and AI-82-10 (the Unalaska Geothermal Project), please be advised that the field work approved under these two permits has been completed and all materials have been removed from the area “of operations. Of the eleven alternative temperature gradient hole (TGH) drilling sites, locations D, E and I were drilled as follows: Temperature Gradient Hole Depth Date Spudded Date Completed D-1 1435" 6-07-82 7-14-82 E-1 1501' 7-18-82 8-08-82 I-1 1500' 8-16-82 9-09-82 Demobilization operations were completed on September 18, 1982. All operations were conducted in accordance with Exhibit A of each Special Use Permit. As we discussed, the temperature gradient holes will be re-measured during the 1983 field season and will then be abandoned. Also as discussed, we were unable to move the wooden camp floors back to Dutch Harbor due to bad weather, so they were moved to the cleared site of temperature gradient hole E-l and burned. The ashes were buried when the stockpiled top soil was replaced at the TGH site. Top soil which had been stockpiled was also placed over the cleared areas of the other temperature gradient hole sites. All other litter and garbage was either removed or burned in the approved garbage pits. REPUBLIC GEOTHERMAL, INC. Mr. Fred Zeillemaker September 23, 1982 Page Two We had no reports of encounters with nesting birds, particularly ground-nesting marbled murrelets. Field work for the environmental baseline study proceeded well, and a2 detailed report of the data collected will be submitted to your agency by the end of the year. We have greatly appreciated your cooperation in the permitting and monitoring of the operations for this project. Should you have any questions or concerns, please do not hesitate to call us. Sincerely, ‘ Tawna J. Nicholas Senior Environmental Planner TIN:clj Appendix H-5 7 Letter to Alaska Department of Natural Resources September 23, 1982 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX . 910-586-1696 (213) 945.3661 September 23, 1982 Mr. David Hedderly-Smith Deputy Director, Minerals Alaska Department of Natural Resources 555 Cordova Street Pouch 7-005 Anchorage, Alaska 99510 Dear Mr. Hedderly-Smith: As requested in your Geothermal Drilling Authorization letter dated May 27, 1982 for three 1500-foot temperature gradient holes (TGH) on Unalaska Island, please be advised that all TGH drilling activities have been completed. Of the eleven alternative drilling sites, locations D, E and I were drilled as follows: Temperature Gradient Hole Depth Date Spudded Date Completed D-1 1435' 6-07-82 7-14-82 E-1 . 1501' 7-18-82 8-08-82 I-1 1500' 8-16-82 9-09-82 Drilling activities were carried out in accordance with the plan of operations submitted to the U.S. Fish and Wildlife Service and your office. However, the temperature gradient holes are still being monitored and will be abandoned at the completion of monitoring operations, currently anticipated to be during the 1983 field season. Should you have any questions about our operations, Please do not hesitate to call. Sincerely, Foun Ge uchetag Tawna J. Nicholas Senior Environmental Planner TIN:clj Appendix H-6 Letter to Alaska Department of Fish and Game December 8, 1982 —~ — 800 Cordova, Suite 101 Dames & Moore Anchorage, Alaska 99501 Eig | (907) 279-0673 Telex: 090-25227 Cable address: DAMEMORE RECEIVED DEC 13 1982 December 8, 1982 Alaska Department of Fish & Game P.O. Box 3-2000 Juneau, AK 99802 Attn: Mr. Don W. Collinsworth Deputy Commissioner Gentlemen: This letter, and its attachments, is Dames & Moore's report of fish collections taken from the streams of Makushin Volcano, Unalaska Island, under Permit 82-87. The sampling was performed as part of an environmental baseline data collection program related to the geothermal exploration project conducted by Alaska Power Authority and Republic Geothermal, Inc. Tables B-1 through B-7 present data cn species occurence, life stages, lengths, weights, disposition, and sampling gear. If you have any questions or comments, please do not hesitate to contact us. Sincerely, DAMES & MOORE £7 teptien T. Grabacki Project Manager STG/ac enclosures xc: Mr. Louis Bandirola, Division Director Sport Fish, ADF&G/Juneau, AK STATE GF ALABKA ALASKA DEPARTMENT OF FISH AND GAME JUNEAU, ALASKA PERMIT to TAKE [ebosmeasomocumacncos: [S] POSSESS CxJ HOLD ALIVE XXX XMAS (GosascoorcDAec [3 Aap OXARORDODNDOCALSSRK 2ORRPORDORROHOALASIK FISH & FOR SCIENTIFIC, EDUCATIONAL, OR PROPAGATIVE PURPOSES, as described below. Issued April 27, 1982 Expires December 31, 1982 Permit No. 82-87 Authorizing Stephen T. Grabacki of 800 Cordova Street, Anchorage, Alaska 99501 Representing Dames & Moore To conduct the following described activities, SUBJECT TO THE CONDITIONS, EXCEPTIONS, AND RESTRICTIONS EXPRESSED HEREON AND ON THE REVERSE SIDE HEREOF, in accordance with he "Fish and Game Code of Alaska” (Chapter 94, SLA 1959): To collect by use of gill nets, seines and electrofishing fish from the upper portions of the streams on the eastern portion of Makushin Volcano on Unalaska Island. Fish taken shall be used for environmental baseline data related to geothermal exploration activities under contract to the Alaska Power Authority. THIS PERMIT DOE!) NOT ALLOW PEREGRINE FALCON, ALEUTIAN CANADA GOOSE, EAGLES OR THEIR ECCS. (see page 2) THLS PERMIT MUST BE CARRIED BY THE PERMITTEE WHEN OPERATING THEREUNDER and be exhibited to any person authorized to enforce state or federal laws who requests to see it. This permit is nontransferable, and will be revoked, or renewal denied by the Commissioner of Fish and Game if the permittee violates any of its conditions, exceptions or restric- tions. No redelegation of authority may be allowed under this permit. A DETAILED REPORT, including numbers, species, dates, and disposition of each specimen; the dates and places collected, their sex, age and breeding condition, lengths and weights ot fish, and weights of birds and mammals SHALL BE SUBMITTED WITH RETURN OF THIS PERMIT WITHIN 10 DAYS AFTER ITS EXPIRATION DATE. Permits will not be renewed until such report has been received by the Commissioner. “Division’Direetor, Sport Fish ec: Russ Redick/Anchorage Pete Murray/Kodiak F & W Protection/Anchorage/Kodiak Ll-1 (8/¢:+) . ALASKA DEPARTMENT OF FISH AND GAME Don W. Collinsworth, Deputy Commissioner Commissioner or Authorized Representative GENERAL CONDITIONS, EXCEPTIONS aND RESTRICTIONS This permit is granced with the axpress understanding that all specimens taken under cuthority hereof are for deposit in a public museum or a public scientific or educational institution unless otherwise stated harsin. The holder of this permit shall keep records, available for inspection at all reasonable hours on request of any authorized representative of the Alaska Department of Fish and Game, correctly recording the required information for each item collected. THIS PERMIT DOZS NOT AUTHORIZE THE FOLLOWING: Tne taking of specimens on Federal or State refuges, reserves, closed areas, parks, or monuments unless specifically stated herein. . The taking of birds, fish or mammals without such licenses as may be required by State regulations, or during the open seasons therefore, in any manner, or by any means or at any time of day not permitted by those regulations, unless otherwise stated herein. The purchase or sale of any birds, their nests or eggs, mammals or parts thereof, acquired by virtue of this permit. The capture or possession of live birds, game fish or game mammals unless expressly authorized herein. REPORT OF SPECIMENS COLLECTED pS re and Disvocition Specimen Remarks and Disposition Svecies Number Area Collected Date Sex Age of specimens PLEASE REFER TO ATTACHED TABLES — . Use continuation sheet_if necessary I cercify that this is a true and complete report of activities 7 a of this permit. Loti 4 Yk Signature of Permittee “Stephen T. Grabacki Project Manager required by the tems Date: 97/2/22 » STATE OF ALASKA 4 | ALASKA DEPARTMENT OF FISH AND GAME a JUNEAU, ALASKA PERMIT FOR SCIENTIFIC, EDUCATIONAL, OR PROPAGATIVE PURPOSES, continued... Permit No.: 82-87 Permittee : Stephen T. Grabacki Use of gill nets is restricted so that undue mortalities are avoided. All fish captured unharmed shall be released at the capture site after identification and sampling. Hook and line fishing may only be accomplished by holders of appropriate sport fishing licenses. A report of fish captured, life stage (age, if part of study) and other pertinent information must be included as part of any report submitted under conditions of this permit. This permit includes the participation of: David Erikson John Morsell Larry Peterson FUMAROLES KM xX xX Xx MAKUSIIIN MAKUSHIN BAY DRIFTWOOD BAY x & MAKUSHIN VOLCANO ouTcH non FIGURE 1 1 UNALASKA ISLAND VICINITY MAP MAKUSHIN VALLEY SUMMER BAY oO UNALASKA UNALASKA ISLAND FIGURE 1 SAMPLE STATION LOCATIONS - MAY A Sample Stations @ Potential Temperature Gradient Hole UNALASKA ISLAND Makushin Valley Nateekin GV 3 Drainage NN Basin Boundaries © — FIGURE 2 SAMPLE STATION LOCATIONS - SEPTEMBER A Sample Stations @ Temperature Gradient Hole Hi camp UNALASKA ISLAND Makushin Valley Nateekin J Drainage aN, Basin Boundary os Angling: Gill Net: Electrofisher: Kick Seine: Beach Seine: Minnow Trap: Fry Identification: Aerial Survey: SAMPLING METHODS Light to medium weight spinning tackle in pools; spoons or spinners. Active gear -- fished by one or more people. Clear monofilament; 30 feet long x 6 feet deep with three 10-foot panels of 1/2, 1 and 1-1/2 inch bar mesh; set in pools as perpendicular to the current as possible. Passive gear -- set overnight. Smith-Root Model VII (backpack); fished in pools and eddies. Active gear -- one person with backpack and electric wands plus a second person with dip net to capture stunned fish. Small seine (6 feet long x 4 feet deep), 1/4 inch knotless mesh. Active gear -- one person holds net in current while second person walks downstream into the net, kicking up stones, gravel, etc; eggs and small fish are washed into the net. 30 feet long x 4 feet deep, 1/4 inch knotless mesh. Active gear - two people hold net stretched between them and sweep through an area. Small barrel-shaped (1-1/2 feet long x 1/2 foot diameter) with conical entry on each end; baited with salmon eggs and set in pool. Passive gear - set overnight. McPhail and Lindsey 1970. Flown by helicopter on the afternoon of 3 September 1982, approximately the peak time of the pink salmon spawning migration. The weather was overcast but bright. Personnel: Arnie Shaul, chief salmon biologist (Alaska Peninsula and Aleutian Islands area), Alaska Department of Fish & Game; Steve Grabacki, project manager, Dames & Moore. TABLE B-1 PRESENCE OF FISH SPECIES AND BARRIERS TO FISH PASSAGE IN THE STREAMS OF PROJECT AREA Stream Makushin Valley Driftwood Bay Glacier Valley (1 Salmonid eggs and yolk-sac fry were taken in the kick-seine in all three Species Dolly Varden Char Pink Salmon Dolly Varden Char Pink Salmon Silver Salmon Three-spine Stickleback Dolly Varden Char Pink Salmon to distinguish the species. (2) TCH = Thermal Gradient Hole, drilled in 1982; possible site of 1983 deep well operations. Life Stages Captured or Observed(1) Fry, Juvenile, Adult Adult Juvenile, Adult Adult Juvenile Adult Fry, Juvenile, Adult Adult ° Barriers to Fish Passage Between TGH(2) and Tidewater Yes Yes streams; it was not possible TABLE B-2 NUMBERS OF ADULT PINK SALMON IN THE STREAMS OF THE PROJECT AREA, 3 SEPTEMBER 1982 AERIAL SURVEY Stream Boundaries of Survey Downstream Upstream Makushin Valley Mouth Last sighting Driftwood Bay Glacier Valley (1) aM = River Miles Mouth Mouth (approx. 5 ry(1) Last sighting (approx. 4 RM Last sighting (approx. 4 RM) Numbers of Pink Salmon 43,000 6, 800 17,500 Channels Surveyed Mainstem Split mainstem channel Side channels Both eastern and western Two tributaries, only Remarks Mainstem slightly silty Side channels clear Sky overcast Water clear Sky overcast Tributaries clear Mainstem very silty (glacial) Sky overcast Date 18 M ay 19 May 31 Aug. 1 Sey 2 Se pt. pt. Gear; RECORD OF CAPTURE OF FISH: Effort (1) WT; K/S; H/L; G/N; OF; immediate 1 10 44 24 88 Species (2) Dolly Dolly Dolly Dolly Dolly Dolly Dolly (1) H/L = Hook & line; angler-minutes (2) (3) (4) (5) (6) = Gill net; net-hours = Electrofisher; seconds of current K/S = Kick seine; number of passes over approximately 1.5m2 Number of fish A = Adul Fork length; in centimeters In grams Juvenilke t TABLE B-3 MAKUSHIN VALLEY STATION, 1982 Number (3) 13 >15 >15 Life Stage (4) A (>>> SO dD mt n” Beach seine; number of sweeps over approximately 5.5m2 Minnow trap; trap-hours Dolly Varden char Pink salmon Silver salmon Three-spine stickleback Lenath(5) 4 2- 3 46 4 41 27 13 39 40 42 42 43 50 44 43 36 30 31 + Four Weight (6) Phidded tid 595 590 605 650 550 595 410 235 250 Unmeasured Disposition Released Retained for identification Retained Retained Retained Retained Retained Retained Retained Released Retained Retained Retained Retained Retained Retained Retained Retained Retained Released Released Released TABLE B-4 RECORD OF CAPTURE OF FISH: DRIFTWOOD VALLEY - EAST STATION, 1982 Date Gear;Effort (1) Species (2) Number (3) Life Stage (4) 19 May B/S; 1 Stickle 1 A K/S; 2 -- 0 = 20 May G/N; 17 -- 0 c MT: 17 Silver 1 J TY W/L = Wook & line; angler-minutes (2) (3) (4) (5) (6) Gill net; net-hours Electrofisher; seconds of current Kick seine; number of passes over approximately 1.52 Beach seine; number of sweeps over approximately 5.5m2 Minnow trap; trap-hours Dolly Varden char Pink salmon Silver salmon Three-spine stickleback fish m ~ nnn Wow on Woo Silver Stickle Number o E = £gq F = fry J = Juvenilke A = Adult Fork length; in centimeters In grams >a nnuu Length (>) Weight (6) Disposition Found dead Released Date 19 May 20 May 1 Sept. 2 Sept. RECORD OF CAPTURE OF FISH: Gear;Ef fort (1) Species (2) B/S; 2 -- K/S; 2 -- G/N; 19 -- WT; 19 -- E/F; 133 Dolly WL; 30 i K/S; 3 ? G/N; 22 Pink Dolly Dolly TTL = look & line; angler-minutes (2) polly Silver Stickle Gill net; net-hours Clectrofisher; seconds of current wou ow wom Minnow trap; trap-hours Dolly Varden char Pink salmon Silver salmon Three-spine stickleback wom ww (3) Number of fish (4) ¢ F J A mom ow ou Egg Fry Juvenilke Adult (5) Fork length; in centimeters (6) In grans Number (3) Life Stage (4) 0 0 oo foo >12 TABLE B-5 ORIFTWOOD VALLEY - WEST STATION, 1982 ow m urp Kick seine; number of passes over approximately 1. 5m2 Beach seine; number of sweeps over approximately 5.5m2 Length (>) Weight (6) Disposition Released Released Most Released Released Released RECORD OF CAPTURE TABLE B-6 OF FISH: GLACIER VALLEY STATION, 1982 Date Gear;€ffort (1) Species(2) — Number(3) Life Stage(4) Length(5) — Weight (6) Disposition 19 May B/S; 2 -- 0 - — == = K/S3 2 -- 0 = -- -- = 20 May G/N; 21 Dolly 1 A 29 -- Retained WT; 21 -- 0 - -- -- -- 1 Sept. HL; 30 -- 0 - _ = = E/F; 139 Dolly 5 J 8-12 -- Released K/S; 7 -- 0 - _ -- ae 2 Sept G/N; 30 -- 0 7 -- — -- TY W/L = Hook & line; angler-minutes G/N = Gill net; net-hours E/F = Clectrofisher; seconds of current K/S = Kick seine; number of passes over approximately 1.52 B/S = Beach seine; number of sweeps over approximately 5. 5m2 M/T = Minnow trap; trap-hours (2) Dolly = Dolly Varden char Pink = Pink salmon Silver = Silver salmon Stickle = Three-spine stickleback (3) Number of fish (4) € = Egaq F = Fry J = Juvenilke A = Adult (5) fork length; in centimeters (6) In grams Date Gear;Ef fort (1) 19 May B/S; 2 K/S; 2 20 May G/N; 43 2 Sept. WL; 15 K/S; 4 E/F; 38 RECORD OF CAPTURE OF FISH: Species (2) Dolly Dolly CY W/L = Hook & line; angler-minutes Electrofisher; seconds of current Kick seine; number of passes over approximately 1.5m2 Beach seine; number of sweeps over approximately 5.5m2 Mi tickleback G/N = Gill net; net-hours E/F = K/S: = B/S = M/T = Minnow trap; trap-hours (2) Dolly = Dolly Varden char Pink = Pink salmon Silver = Silver salmon Stickle = Three-spine s (3) Number of fish (4) Fee Egg Fos Bry J = Juvenilke A = Adult (5) Fork length; in centimeters (6) In grams Number (3) Life Stage (4) 1 Dt o Onoo TABLE B-7 F F up BELOW CAMP STATION, 1982 Length(5) 2-5 2-3 Weight (6) Disposition Released Released Released Released APPENDIX I TEMPERATURE GRADIENT HOLES D=1, E-l, AND I-l DRILLING HISTORIES Appendix I-l Temperature Gradient Hole D-l Drilling History 6-1-82 6-2-82 6-3-82 6-4-82 6-5-82 6-6-82 6-7-82 6-8-82 6-9-82 6-10-82 APPENDIX I-1 TEMPERATURE GRADIENT HOLE D-1 DRILLING HISTORY Began slinging dismantled drill rig (Longyear 38) and equipment (pumps, drill] rod, tools, etc.) to D-1 drill site or campsite from Carl's Inc. staging area at Dutch Harbor, depending on weather at drill site. Continue slinging rig and equipment and begin assembly of rig at drill site. All rig parts on drill site. Slinging drill rod and miscellaneous equipment to D-1 site. Erect drill site storage tent for mud and equipment, continue slinging drill rods, mud, fuel, etc. from Dutch Harbor. Move B.0.P.E., valves, stripper head, mud pit and miscellaneous equipment to drill site. Put in tiedowns for rig. Most of needed materials now at drill site. Continue installing and cementing tiedowns (anchors) for rig. Reset rig on blocks. Assemble water line (1/4 mile). Set mast on rig and recemented mud pit.in position. Set up to drill. Spud hole at 8:00AM with 4-1/2" rock bit. Rotary drilled to 60 ft. in glacial t111 with boulders. Lost and regained circulation several times. Continued slinging NC and NX drill rod to site from Dutch Harbor along with 5-1/2" casing. Shut down due to fog. Began 24 hr. operations. Rotary drilled with 4-1/2" rock bit from 60 ft.-99.5 ft. on day shift with continuing intermittent lost circulation in fractured Makushin volcanic rocks. Recemented several deadman tiedowns to strengthen. Night shift drilled to 125 ft. Shut down 2 hrs. for severe weather (hailstorm). Rotary drilled 125 ft.-150 ft. (AM) through alternating hard and soft streaks in volcanics. Began opening hole with 6" rock bit. Opened hole from 4-1/4" to 6" to 110 ft. (PM). Rough drilling on boulders in upper 30 ft. of hole. Opened 4-1/2" hole to 6" 110 ft.-150 ft. Attempted to run 5-1/2" casing, would not go past 12 ft., hung up on boulder. Knocked boulder loose into hole, pulled casing, reamed and chased boulder to bottom (150 ft.) with 6" bit. Pulled drill rods and attempted to run casing again. Casing refused to go, hole apparently deviated in several directions by boulders in till. Ordered 8-1/2" rock bit from Anchorage. Shut down to wait on bit. 6-11-82 6-12-82 6-13-82 6-14-82 6-15-82 6-16-82 6-17-82 6-18-82 6-19-82 Standing by for larger bit, prepared casing for running, performed Maintenance on equipment, assembled B.0.P.£., reset portable mud pit. Drilled ahead with 4-3/4" bit from 150 ft.-190 ft. Rotary drilled 4-3/4" hole 190 ft.-208.5 ft. Lost circulation, drilled last 6 ft. blind while attempting to regain circulation. Pulled out of hole and pushed rubber plug to bottom of hole. Pulled up 30 ft. off bottom, mixed and pumped cement plug into hole. Drilled out plug, drilled ahead 10 ft. and lost circula- tion. Mixed and pumped thick mud pill with no returns. Drilled additional 2 ft. to 220 ft. Eight and one-half inch bit arrived, but without sub for coupling to drill rod. Ordered bit sub from Anchorage. Mixed and pumped cement plug to heal lost circulation at 220 ft. Pulled rods to 100 ft. Cleaned cement from pump, hoses, etc., while waiting for cement to set up. Waiting on bit sub for 8-1/2" bit. Fogged in until 8:30AM, serviced wire-line core barrels and con- ducted equipment realignment and organization. Bit sub arrived at 6:00PM. Opened 6" hole to 8-1/2" from surface to 100 ft. Fogged in until 9:00AM. Continued opening hole from 100 ft. to 150 ft. (drilled very hard). Pulled rods at 150 ft. Ran 150 ft. of 5-1/2" casing and cemented with 15 sacks of cement, 8 sacks sand, 1 sack calcium chloride. Waiting on cement. Nippled up wellhead with 6" gate valve, blowout preventer, strip- per head, etc. Ran in hole with 4-1/2" rock bit. Reamed and Cleaned out cement from 150 ft. to 220 ft. Rotary drilled from 220 ft. to 280 ft. Tripped for new bit and drilled 280 ft.-345 ft. Very hard andesite flow rock. Rock bit penetration rate 10 ft. in last 10 hrs. Preparing to switch to coring assembly. Pulled out of hole, switched to coring setup. Cored NC (3.875") hole 345 ft.-408 ft. Hit void, bit dropped approximately 6 ft. Some gas from hole, nonflammable, no HS odor, probably C05. Prepare to reduce hole to NX size core. Pulled NC bit and rods, removed bit, ran NC rods to 400 ft. as uncemented casing. Picked up NX (2.980") bit and rods and ran in hole (some reaming required to get through NC casing). Assembled and installed stripper head assembly. Cored NX hole 408 ft.-490 ft. in highly fractured andesite lava, core recovery dropped from 95+% to 10-20% below 464 ft. 6-20-82 6-21-82 6-22-82 6-23-82 6-24-82 6-25-82 6-26-82 6-27-82 6-28-82 6-29-82 6-30-82 7-1-82 Continued coring in fractured lavas 464 ft.-525 ft. Tripped for New bit at 525 ft. Had difficulty getting back in hole at top of NC casing 8 ft. below BOP's, damaged bit. Put on new bit, cored to 558 ft., had to trip to recover core barrel (latch failed). Cored ahead 558 ft.-580 ft. in fractured lava. Tripped for bit, repaired draw works. Cored ahead from 580 ft.-610 ft. Most of day shift spent on maintenance and repairs. Waiting for barge with additional NX drill rod. Cored ahead 610 ft.-640 ft. Ran out of NX drill rod, pulled out of hole. Dri1] rods arrived in Dutch Harbor. Weather prevented helicopter from slinging to drill site. Waiting on weather. Sling new drill rod to location. Run in hole to bottom at 640 ft., began coring. Torque increased to point of being unable to rotate. Tried to retrieve NX rods. NX rods swelled and stuck inside NC casing from torque. Attempted to pull NX and NC rods simultaneously. Twisted off NX rod at 410 ft. Recovered 400 ft. of NC rod with 410 ft. of NX rod. (Seven jts. NC and 25 jts. NX rod damaged beyond repair.) Welded NX casing shoe on NC rods, ran in hole to 410 ft., worked over top of fish and began washing over NX rod. Washed over to 465 ft. Pulled out of hole. Changed casing shoe, ran in hole and washed over NX rods from 465 ft.-530 ft. Snow and winds grounded helicopter, drilling crew climbed from camp to drill site. Tripped for new casing shoe bit, jammed with rock at 250 ft., pulled out, cleared and reentered hole. Washed over and reamed 535 ft.-555 ft. Tripped for new shoe bit at 555 ft. Rods sticking first 150 ft. Reamed and washed over to 595 ft. Running water down annulus to stop vibration and get water outside to bit. Tripped for new casing shoe bit, washed over NX pipe 595 ft.-642 ft. Freed NX pipe. Recovered NC and NX rods. Tripped in hole with NX coring assembly. Water supply went dry. Helicopter required to relocate pump. Helicopter grounded in morning due to fog. Cored 642 ft.-649 ft. Bit wore flat; could not recover core barrel. Pulled out of hole. Ran in hole and cored with NX bit 649 ft.-770.5 ft. in highly fractured andesite. 7-2-82 7-3-82 71-4-82 7-5-82 7-6-82 7-7-82 7-8-82 7-9-82 7-10-82 7-11-82 7-12-82 7-13-82 Continued coring 770.5 ft.-783 ft. Tripped for bit and cored ahead to 813 ft. Twisted off bit and reaming shel]. Pulled out of hole. Ran in hole with casing shoe bit on NX rods and attempted to mill up Junk in hole. Left NX rods in hole as casing after milling on junk. Reduced hole size to BQ (2.360"). Ran in hole with BQ bit _and rods. Milled and drilled through junk with BQ bits. Cleaned out to bottom at 813 ft. and resumed coring. Cored BQ hole 813 ft.-840.5 ft. in hard fractured rock. Tripped for bit; cored BQ hole from 840.5 ft.- 908.5 Ft. Frac- tured rock plugging bit. Cored ahead in less fractured rock from 908.5 ft.-1,080 ft. Cored ahead through cinders 1,080 ft.-1,130 ft., cavities through- out. Very poor core recovery. Tripped for bit and cored to 1,175 ft. Tripped for bit and to clear core barrel. Cored BQ hole 1,175 ft.-1,202 ft. in lahar deposit. Tripped for another bit : (bit oblong) cored to 1,222 ft. Cored 1,222 ft.-1,247.5 ft., tripped for bit. Frequent inner core barrel blockage. Cored to 1,270 ft. Helicopter grounded by fog until 10:30AM. Cored 1,270 ft.-1,395 ft. in altered diorite. Cored 1,395 ft.-1,438 ft. Unable to pull last 10 ft. of core. Weather bad, unable to sling additional BQ rods to drill site. Weather still bad. Unable to sling pipe to location. Tripped out of hole to recover core, found core barrel had slipped out of BQ Pipe leaving 10 ft. fish in bottom of hole consisting of inner core barrel and core. Attempted to work over and recover fish several times - no good. Decided to complete hole at present depth, 1,438 ft., leaving 10 ft. fish on bottom. Pulled BQ rods out of hole and tried to recover NX rod casing set at 813 ft. Unable to pull NX rods out, back off NX rod at 110 ft. and pulled out of hole. Tried to recover NX and NC rods again, unsuccessful. Ran 1,428 ft. of 1-1/2" tubing with cap on bottom. Filled tubing with water. Began disassembling drill and breaking down drill pipe for move to next location. 7-14-82 Cemented tubing in hole with 25 sacks of cement and 4 sacks of sand. Released rig. Remove B.0.P.E. and well head equipment. Began slinging equipment to E-1 location. All hands on day shift. Appendix I-2 Temperature Gradient Hole E-1l Drilling History 7-15-82 7-16-82 7-17-82 7-18-82 7-19-82 7-20-82 7-21-82 7-22-82 7-23-82 APPENDIX I-2 TEMPERATURE GRADIENT HOLE E-1 DRILLING HISTORY Began full scale moving operations from D-1 site to new location. Waited on weather until 11:00AM then slung 20 loads to new site before being shut down by weather again. Continued slinging drill rig, timbers, and equipment to E-1 loca- tion. Constructed and leveled timber substructure for rig. Began digging holes for tiedowns and mud pit. Completed moving drill and equipment to E-1 site. Finished digging mud pit, began assembling rig, put in water lines, finished anchor holes. Finished assembling rig, set up mast, cemented tiedown anchors. Sling cement, mud, etc., from Dutch Harbor. Completed water supply system. Completed rigging up. Spud in at 8:00AM; rotary drilled 5-1/8" hole to 85 ft. Encountered bedrock at about 40 ft. Began 24 hr. operations. Rotary drilled 85 ft.-95 ft. in hard formation (diorite), drilling extremely slow. Switched to coring set up at 95 ft. due to slow penetration. Cored with 4-1/2" bit on NC rod to 121 ft. Coring operation also slow, decided to set surface casing (5-1/2") at 120 ft. Pulled out of hole, switched back to 6-1/4" rock bit, and opened hole from surface to 110 ft. Continued opening core hole to 6-1/4" diameter from 110 ft.-120 ft. Pulled out of hole and changed to 8-5/8" rock bit. Opened 6-1/4" hole to 8-5/8" hole from surface to 110 ft. Drilling extremely hard and slow. Decided to run casing at 110 ft. Began running casing. Ran 5-1/2" casing to 110 ft. Cemented casing with 16 sacks cement, 4 sacks sand, 1 sack gel, 2 lbs. calcium chloride. Good cement returns to surface, bumped plug. Waited on cement 14 hrs. Dug additional mud pit, nippled up wellhead and B.0.P.E. Rigged up for NC (3.875") coring. Ran in hole and began cleaning out cement from 110 ft.-121 ft. Cement still green, casing broke loose and dropped 2 ft. Finished cleaning hole to 121 ft. Removed wellhead and B.0.P.E£. Welded additional casing on casing string. Pushed casing down to 121 ft. Began setting up for recementing job. Transported cement and sand to location from Dutch Harbor. 7-24-82 7-25-82 7-26-82 7-27-82 7-28-82 7-29-82 7-30-82 7-31-82 8-1-82 8-2-82 8-3-82 Circulated fresh water inside and outside of 5-1/2" casing to flush clean for new cement job. Recemented 5-1/2" Casing with 15 sacks cement, 5 sacks sand, 20 lbs. calcium chloride. Had good returns to surface, pushed plug to 110 ft. Waiting on cement. Installed wellhead (flange, 6" gate valve, spool, stripper head) and B.0.P.£. while waiting on cement. Picked up NC (3.875") bit and rods, drilled out plug and cement to 121 ft. and cored from 121 ft.-150 ft. Pulled out of hole and changed to NX (2.980") coring set up. Cored hard diorite from 150 ft.-281 ft. with NX coring assembly. Circulating mud temperature increased from 45°C to 62°C at 160 ft. then remained steady. Cored ahead to 406 ft. No increase in mud temperature, but core warm to touch upon retrieval (27°-32°C approx.). Minor lost circulation, quickly regained. Continued coring 406 ft.-476 ft. in diorite. Core barrel hanging up, pulled rods to repair or replace belled rods. Core retrieved still warm (+32°C). Repaired hydraulic leak in main tank. Continued coring 476 ft.-576 ft. Core still very warm. Cored NX hole 576 ft.-621 ft. Ran out of NX rods (shipment of additional rods delayed enroute to Dutch Harbor). Pulled NX rods, attached casing shoe, ran in hole and set NX rods as casing at 621 ft. Set up for BQ (2.360") coring, picked up BQ bit and rods, ran in hole and cored BQ hole from 621 ft.-691 ft. Ran short tempera- ture survey 3 hrs. after circulation 72.4°C at 400 ft., 103°C at 575 ft. Continued coring BQ hole 691 ft.-851 ft. Tripped for new bit. Mud temperature out 29°C. Cored ahead 851 ft.-915 ft. Tripped for bit. Cored to 1,009 ft. Retrieved core temperature +120°F (49°C). Mud stil] 29°C. Continued coring 1,009 ft.-1,056 ft. Tripped for bit. Ran temperature survey, 107°C at 600 ft., 147°C at 800 ft., and 153°C at 900 ft. Temperature equipment good only to +150°C. Tripped in hole and cored BQ hole to 1,151 ft. Cored 1,151 ft.-1,175 ft. Tripped for bit and cored to 1,199 ft. Core barrel stuck, successfully freed and pulled rods for inspec- tion. Ran in hole and cored to 1,241 ft. 8-4-82 8-5-82 8-6-82 8-7-82 8-8-82 Cored 1,241 ft.-1,268 ft. Core barrel latch sheared a pin, pulled out of hole to retrieve and repair. Ran in hole and cored to 1,291 ft. Core barrel springs failed, unable to retrieve core barrel. Out of spare springs, pulled out of hole to wait on parts. Left 10 ft. of core in hole. : Waited on parts until 2:00PM. Tripped in hole with core barrel and new springs, attempted to recover 10 ft. core left in hole, not successful. Ground up most of core then cored ahead from 1,291 ft.-1,361 ft. Tripped for new bit at 1,361 ft. Cored diorite from 1,361 ft.-1,419.5 ft. Gradually lost circulation in this interval. Unable to regain until 1,420 ft. Cored ahead to 1,501 ft. total depth. Started pulling out of hole. Pulled and laid down BQ rods. Ran 1-1/2" I.D. tubing to 1,501 ft. T.D. Unsuccessfully attempted to retrieve NX and NC temporary casing. Cemented 1-1/2" I1.D. tubing with 15 sacks cement, 6 sacks sand, - and 20 Ibs. calcium chloride. Again attempted to retrieve NX and NC temporary casing. Recovered 80 ft. of NX rod. Left 530 ft. of NX with casing shoe and 120 ft. of NC with casing shoe in the hole. Released rig and began slinging materials to I-1] drill site. Ceased 24 hr. operations. Appendix I-3 Temperature Gradient Hole I-1l Drilling History 8-8-82 8-9-82 8-10-82 8-11-82 8-12-82 8-13-82 8-14-82 8-15-82 8-16-82 8-17-82 8-18-82 APPENDIX I-3 TEMPERATURE GRADIENT HOLE I-1 DRILLING HISTORY Began slinging equipment to I-1 drill site. Disassembled rig and prepared sling loads. Strong winds prevented helicopter from slinging materials to I-1 site. Unable to sling equipment until 11:00AM (weather). Began rig Move, able to move most of rig to new site. Helicopter grounded due to fog. Assembled timber sub-base and drill rig. Dug holes and cemented tiedowns. Assembled pumps, ran water line, etc. Both crews working daylight shift. Finished rigging up and spudded hole at 1:00PM. Rotary drilled 6-1/2" hole to 25 ft. Hit boulders at 7 ft., 20 ft., and 25 ft. im sandy clay matrix. Continued slinging equipment, supplies, survival tent, etc., from E-1 to I-1 location. Shut down at 4:30PM due to fog. Returned both crews to camp. Both crews working daylight shift. Continued slinging materials and set up survival tent. Drilled 6-1/2" hole 25 ft.-70 ft. Hole began caving in interval composed of loose, coarse sand, drill rods became stuck, lost circulation. Worked on stuck pipe. Worked drill rods free, pulled out of hole, hole very crooked. Decided to move rig +100 yds. northwest. Tore down rig and moved timbers and rig to new location. Rig partially reassembled. Completed reassembling rig, cemented tiedowns. Switched to 24 hr. operations. Spud in 8:00PM with 4-1/2" rock bit. Rotary drilled 4-1/2" hole to 55 ft., taking care to keep hole straight. Encountered bedrock (diorite) at 35 ft. Drilled ahead 35 ft.-65 ft. Tripped for new bit. Drilled to 100 ft. in hard diorite. Pulled out of hole, picked up 6" rock bit and opened 4-1/2" hole to 6" from surface to 100 ft. Pulled out of hole and picked up 8-5/8" bit and began opening 6" hole to 8-5/8" hole from surface to 20 ft. Continued opening 8-5/8" hole 20 ft.-55 ft., very hard and slow. Tripped out to change bit. Ran in with 6-1/2" bit to clean hole. Attempted to run casing. Could not get below 30 ft. Pulled casing, ran in with 8-5/8" bit and opened hole to 100 ft. Ran 100 ft. of 5-1/2" casing into hole. 8-19-82 8-20-82 8-21-82 8-22-82 8-23-82 8-24-82 8-25-82 8-26-82 8-27-82 8-28-82 8-29-82 Cemented 5-1/2" casing in hole with 14 sacks cement, 8 sacks sand. Waiting on cement. Nippled up wellhead and B.0.P.£., moved NC rods from original site. Wind and fog weathered in camp and drill site. Unable to evacuate day shift. Drill site remained weathered in due to heavy fog and high winds. Cleaned out casing with rock bit and ran 95 ft. of NC rod with Casing shoe to act as secondary casing and reduce rod vibration. Still unable to evacuate crew. Weather lifted; evacuated crew to camp. Returned day shift from camp to drill site via Dutch Harbor in order to refuel helicopter. Delayed at Dutch Harbor 4 hrs. by fog. Picked up NX bit (2.980") and rods ran in hole to 100 ft. Day shift again fogged in at drill site for third consecutive night. Cored NX hole 100 ft.-150 ft. Formation highly fractured, coring Slow. Installed second water line for increased drilling water needs. Crew weathered in at drill site for fourth night. Rig out of fuel and batteries dead. Evacuated crew from drill site. Unable to sling fuel to drill site due to wind and fog. Able to sling fuel by early evening. Night shift cored NX hole from 150 ft.-197 ft. with. core blockage problems due to highly fractured nature of formation. Pulled out of hole at 197 ft. Removed bit and ran NX rods to bottom (197 ft.) as temporary casing string. Picked up BQ (2.360") bit and rods, ran in hole and cored BQ hole from 197 ft.-310 ft. in fractured diorite. Continued coring BQ hole 310 ft.-370 ft. Tripped for new bit and cored from 370 ft.-432 ft. Hole flowing cool water at about 60 gpm. Cored ahead 432 ft.-500 ft. with BQ assembly. Hole still making about 10 gpm while coring. Tripped for bit and cored from 500 ft.-569 ft. in hard, moderately fractured diorite. Cored 569 ft.-584 ft. Tripped for new bit. Rods dropped down hole 80 ft. Ran in hole and screwed into fish and pulled out of hole to check bit. Bit OK. Ran in hole, found inner core barrel stuck in rods about 300 ft. from surface. Pulled rods to recover barrel. Ran back in hole and cored BQ hole 584 ft.-645 ft. Delayed 4 hours by bad weather. Replaced stripper rubber in B.0.P.E. stack. Cored ahead 645 ft.-770 ft. Still in diorite with few fractures. Hole continued flowing water, core is Partially dry but cool on retrieval. 8-30-82 8-31-82 9-1-82 9-2-82 9-3-82 9-4-82 9-5-82 9-6-82 9-7-82 9-8-82 Cored ahead 770 ft.-800 ft. Wire line parted. Pulled out of hole to retrieve wire line and core. Repaired wire line, ran in hole and cored 800 ft.-840 ft. Pulled out of hole for new bit. Well remains artesian, flowing 100-150 gpm with pipe out of hole. Surface flowing temperature +26°C. Ran in hole with new bit, cored ahead with BQ assembly 840 ft.-890 ft. Continued coring BQ hole 890 ft.-950 ft. Unable to retrieve core barrel, latch failed. Pulled out of hole to recover core barrel and repair latch and wire line assembly. Changed bit, ran in hole and cored 950 ft.-1,010 ft. Hole still artesian. Cored BQ hole 1,010 ft.-1,136 ft. Cored 1,136 ft.-1,200 ft. Helicopter unable to reach drill site with night shift due to fog. Day shift remained at site in survival tent. Evacuated day shift to camp for hot meal then returned to drill site. Cored from 1,200 ft.-1,330 ft. Hole still artesian, core slightly warm on retrieval. Heavy fog at drill site, unable to change crews. Pulled out of hole for bit change, had trouble reentering hole due to artesian pressure. Cored from 1,330 ft.-1,353.5 ft. in hard diorite with few fractures. : Cored BQ hole 1,353.5 ft.-1,440 ft. Day shift weathered in at drill site, unable to change crews. Helicopter evacuated drilling crew to camp in extremely foggy weather. Unable to return until evening. Cored ahead from 1,440 ft.-1,500 ft. total depth. Pulled out of hole with BQ coring assembly. Ran 72 joints of 1-1/2" tubing. Retrieved 230 ft. of NX rods used as casing. Removed B.0.P.E. and set up for cementing through NC rods still in hole as casing. Shut off water flow with 5 sacks of barite in mud. Cemented 1-1/2" tubing with 14 sacks cement, 8 sacks sand, and 20 lbs. calcium chloride. Released rig. Began dismantling rig and moving equipment to Dutch Harbor. APPENDIX J GEOCHEMICAL LOGGING OF CUTTINGS AND CORE SAMPLES FROM DRILL HOLES D-1, E-1 and I-1l MAKUSHIN VOLCANO GEOTHERMAL PROSPECT, UNALASKA ISLAND, ALASKA SYSTEMATIC - COST-EFFECTIVE - RESOURCE DISCOVERY Appiications and Technique Development Robert W. Bamford Geologist /Geochemist Completed for Republic Geothermal, Inc. December, 1982 2315 26th Ave. £., Seattle, WA 98112 / Telephone (206) 329-7966 EE CEASA IS BI REAR ERE BOOS ERE CONCLUSIONS AND RECOMMENDATIONS ...cccccccccccccccccccccccccs INTRODUCTION .cccccccccccccccccccccccccccccccccccccccccccccce Sample Preparation and Analytical Procedures ........... Geochemical Background Calculations .......cccccesccceee Data Presentation and Interpretation .......ccccccccccce DISCUSSION ..cccccccccccccccccccccccccccccccscccccscccccccecs Geochemical AncmalieS .....ccceececccccccccccccccccccces Structural and/or Permeability Implications of Anamaly DIBELIDUEIONS =. ccc ccc cccncncececsscesesscecsscccceve Geothermal Resource Potential .......cccscccccccccccccce REFERENCES 2... ccccccccccccccccccccccccccccccccccccccccccsccce Table 1 Summary of Geochemical Logging Results for Drill Holes Del, E-l, amd I-l co... e cece ccc cece cece ccc ccccccce 2 Estimated Geochemical Background (x) and Threshold (x+ 25) VAlUCS ..ccccccccccccccccccccccccccccccccccccccccs oo nu WwW WD 10 12 14, 15 16 FIGURES Figure Hg, As, S, Li, F, Ca, Si05, Cu, Mo, Pb, and 2n Gains and Losses versus Depth “for Camposite (100-foot) Cuttings and Core Samples fram Drill Hole D-l ........ Hg, As, S, Li, F, Ca, Si05, Cu, Mo, Pb, and Zn Gains and Losses versus Depth “for Composite (100-foot) Cuttings and Core Samples fram Drill Hole E-l ........ Ho, As, S, Li, F, Ca, Si0,, Cu, Mo, Pb, and Zn Gains and Losses versus Depth “for Camposite (100-foot) Cuttings and Core Samples fran Drill Hole I-l ........ Hg, As, S, Li and F Gains and Losses versus Depth for Selected Individual (ca. 10-foot) Core Samples fran Drill Bole Bal... es pecssecseeceascscceneseoeceeneeeess As, Hg, and As/Hg versus Depth for Individual (ca. 10- foot) Core Samples fram Drill Hole E-l .............0. APPENDICES Appendix Statistics for Background Sample Data .........cceeece Statistics for Element Gain and Loss Values for Campo— site (100-foot) Cuttings and Core Samples ..........0. Statistics for Element Gain and Loss Values for Individual (ca. 10-foot) Core Samples fram Drill Hole Erl ccccccccccscccccccccccecccccccccccccccccsccceseces Original Geochemical Data for Composite (100-foot) Cuttings and Core Samples .......cccccccccccccccccecce Original Geochemical Data for Individual (ca. 10-foot) Core Samples fram Drill Hole E-l ....... ccc cece ccc ce ee 17 18 19 20 24 28 32 41 1. 2. CONCLUSIONS AND RECOMMENDATIONS A single type of geochemical anomaly, characterized by spatially associated Li-F-As-S (+8g) enrichments, predominates in rocks pene- trated by drill holes D-l, E-l, and I-l. Its nature, and its apparently broad occurrence in an area with active hot springs and fumaroles, suggest that hydrothermal rock alteration in this area developed primarily under intermediate-pH or alkaline geothermal conditions. Principal geochemical logging results include tentative recognition of: (1) hot-water entries between 1190 and 1400 feet in E-1 and, possibly between 1304 and 1393 feet in D-l, (2) self-sealed or otherwise relatively impermeable rock overlying and/or surrounding these permeable zones in D-l and E-l, and (3) fractured, previously self-sealed(?) rocks which possibly permit deep ground water circulation below about 275 feet in I-l. Rocks above 1200 feet in E-1 and between 700 and 1200 feet in D-1 are either self-sealed or unfractured and probably constitute effective capping for a geothermal reservoir. Rocks in the vicinity of I-1, however, probably would not provide an effective capping. The principal geothermal resource target in or near the area tested by drill holes D-1, E-l, and I-1 is probably a higher-temperature (5 200°C?), water-dominated reservoir. Parts of the target reservoir may be relatively shallow (1500 feet?). Discovery potential is probably greatest for the area around E-1 and least for the area around I-l. INTRODUCTION This report describes and interprets multielement geochemical data acquired through analysis of cuttings and core samples from the approxi- mately 1500-foot deep, temperature gradient drill holes D-1, E-l, and I- 1, which are located in the Mount Makushin Geothermal Prospect area, Unalaska Island, Alaska. The work is designed to aid evaluation of geothermal resource potential in the prospect area by providing inform- ation on the distribution and nature of past or present thermal fluid migration in the vicinity of the drill holes. Such migration, even in limited amounts, causes the development of hydrothermal trace and minor element signatures in rocks permeated by the thermal fluids. These signatures can be detected readily by geochemical analysis (e.g., Bamford et al., 1980; Bamford, 1978). Their composition and magnitude provide indications of the degree and type of thermal fluid-rock inter- actions, and frequently permit tentative distinction between past and ongoing hydrothermal activity. Sample P ; i lytical i Forty-six composite and nineteen individual cuttings and core samples from the three drill holes have been prepared and analyzed for this work. Most of the composites represent approximately 100-foot drilling intervals and include 7 to 10 individual samples, these representing 10-foot to 15-foot drilling intervals. The analysis of composite drill hole samples allows development of continuous, repre- sentative, multielement geochemical data from a minimum number of samples at reasonable cost. The individual (ca. 10-foot) samples have been analyzed to provide detailed characterization of critical geo- chemical anomalies defined by composite sample data in deeper parts of drill hole E-1 (1107-1400 feet). The composite samples were analyzed for Ha, As, S, Li, F, Ca, Si05, Cu, Mo, Pb, Zn, and Ag. With the exception of Si05, Cu, Mo and Ag, this is an element suite indicated to be useful for geothermal exploration by previous work (e.g., Bamford et al., 1980). Si0j data were obtained primarily to aid the classification of sample rock types for geochemical background and gain and loss determinations. Data for Cu, Mo, Pb, Zn and Ag were obtained to assist discrimination of anomalies related to base or precious metals mineralization, which was tentatively inferred during initial work in the area (J. S. Matlick, personal communication). The individual (ca. 10-foot) samples were analysed for Hg, As, S, Li and F. The analytical methods were: specific ion electrode for F; Leco induction furnace for S; and conventional atomic absorption spectro- photometry (AAS) for all other elements except As. As (arsenic) was determined by hydride generation AAS in order to obtain useful data in low concentration ranges. The hydride generation AAS technique provides detection limits of 0.1 ppm in this work. Conventional analytical metheds for As commonly provide detection limits of 1 ppm or more. Sample preparation and analytical work were carried out at the Rocky Mountain Geochemical Corporation Laboratory, Salt Lake City, Utah. Specified procedures were followed. Geochemical Background Calculations Geochemical background and threshold values are determined for 4 Separate rock-type or rock-composition (background) categories. ‘They were estimated as the arithmetic mean (x) and as the mean plus or minus 2 standard deviations (x+2s), respectively, of data sets for "unaltered" samples in each background category (Table 2 and Appendices A and D). Assignment of samples to specific background categories was based on the lithologic logs (Republic Geothermal, Inc., 1982A) and, for relatively unaltered samples, on similarity in Ca, Li, and SiOz geochemistry. Criteria used to establish a sample as "unaltered" were minimal, readily observed alteration in the drill core (Republic Geothermal, Inc., 1982A) and the absence in the sample of unusual concentrations of Hg or As, and/or one or more of the elements Li and S. Determination of back- ground values by methods more rigorous than those described above was precluded by the limited number of "unaltered" samples and by the relative geologic complexity of the survey area. The mean backgrounds values (x) and corresponding standard deviations (s) provide a basis for estimating and evaluating geochemical gains and losses (See description below and Figures 1 thru 4). Accuracy and interpretability of geochemical gain and loss values as indicators of geothermal fluid-rock interaction are usually optimum: (1) if the background values closely reflect original (pre-geothermal) rock geo- chemistry, (2) if the number of background data used for calculating x and s for a given background category equals or exceeds 3, and (3) if background categories are effectively matched with the various litho- logies sampled. In the current work, most of these conditions are reasonably satisfied and the geochemical gain and loss values are considered to be generally reliable. Absolute reliability of gain and loss values is lowest (although adequate) for the two samples in the "“Cinders/Lahar” background category, since background values for this category are defined by data for one cinders sample (D-1/990-1150), which is probably weakly altered and may be poorly representative. Background values for the Diorite-l and Diorite-2 background categories are also based on single samples but are indicated to be both reasonably representative and of good quality. > : . iI . Geochemical results are presented in three forms: (1) computer- generated element concentration and/or element gain and loss versus Gepth plots for the drill holes (Figures 1 thru 5), (2) tabulations and - plots of various statistics for selected original geochemical data and for calculated, element gain and loss values (Appendices A, B, and), and (3) tabulations or original geochemical data (Appendices D and £). The geochemical gain and loss estimates provide relatively direct indications of the distribution, nature, and degree of epigenetic modification of original rock geochemistry. Gain and loss values, developed by subtraction of background values from original geochemical data, are generally considered to be anomalous if they exceed two times the standard deviation of the applicable background data set. For background data sets based on a single sample only, anomaly thresholds are assigned values equal to two times the average of standard deviations for the other background data sets ("Avg. 2s," Table 2). The gain and loss versus depth plots present results in a graphical form which facilitates the evaluation of magnitude and spatial relationships between the various geochemical anomalies themselves, and between collective anomaly associations and various geologic features. Statistics presented for gain and loss values include: simple statistics (maximum, minimum, mean, variance, and standard deviation), and Spearman rank correlation and cluster analysis (e.g., Anderson and Sclove, 1978, p. 596-601; and Davis, 1973, p. 73-80 and 456-473). Correlation and cluster analysis by the Spearman rank method is free of underlying assumptions regarding type of data distribution. Interpretations of the geochemical results are based primarily on empirical multielement geochemical zoning models provided by both published and proprietary studies of hot-water and vapor-dominated geo- thermal systems (e.g., Bamford, et al., 1980; Bamford and Christensen, 1979; Bamford, 1978; and White, 1967). The empirical models incorporate an extensive data base and reflect demonstrated relationships between various types of active geothermal phenomena and specific hydrothermal geochemical signatures. Several general studies provide insight into conditions affecting transportation and deposition of key hydrothermal elements (e.g., Robertson, et al., 1978); these are utilized for checking and refining interpretations. DISCUSSION Secchenicn' li A single type of geochemical anomaly, characterized by spatially associated Li-F-As-S (ifig) enrichments, predominates in rocks penetrated by drill holes D-l, E-1, and I-l (Figures 1 thru 4, Table 1, and Appendix B). Its nature and its apparently broad occurrence in an area with active hot springs and fumaroles, suggests that hydrothermal rock alteration in this area developed primarily under intermediate—pH or alkaline water-dominated geothermal conditions. Anomaly characteristics which identify these specific water-dominated conditions, are the Li enrichments and/or the absence of significant Li, Zn, or Cu depletions. Relatively high As/Hg ratios (e.g. Figure 5) also support inference of water-dominated rather than vapor-dominated conditions, but do not provide further indications of pH. No evidence of significant base ore precious metals mineralization or other paleo-hydrothermal features is apparent in the geochemical results. Minor Cu, Mo, and Zn anomalies occur locally, but are probably mainly of geothermal origin. No Pb or Ag anomalies were detected. Estimates of the temperature and pH conditions associated with geothermal rock alterations (see above and/or Table 1) are based on the observed abundance and the known or inferred hydrothermal behavior of specific elements. Temperature estimates are derived primarily from Hg distribution data. Comparisons of Hg geochemistry and temperature pro- files for rocks penetrated by production wells in several different geothermal systems consistently indicate that anomalous Hg enrichments of geothermal origin develop and/or are able to persist mainly at temperatures below about 200 degrees C. Also, investigations of the temperature dependence of Hg liberation from geothermally altered, surface and subsurface rocks (e.g., Christensen et al., 1980) suggest that much of the Bg in such rocks occurs in elemental form, absorbed or otherwise intimately associated with silicate minerals. Hg as cinnabar ; is probably less abundant in most geothermal systems. These results, evaluated in terms of published liberation temperatures of Hg in various types of solids (e.g., Koksoy et al., 1967), further support the concept that prominent Hg enrichment anomalies in geothermal systems often indicate alteration temperatures near or less than 200 degrees GQ Thus eS eee eee two relatively independent lines of evidence suggest that alteration temperatures greater than or less than 200 degrees C (+ 50 degrees C max.) can be frequently discriminated based on the absence or presence, respectively, of significant Hg enrichments in geothermally altered rocks. Inferences regarding past pH conditions derive mainly from Li, Zn, and Cu distribution data. Associated hydrothermal depletions of these elements are considered to reflect alteration by fluids with lower pH's and lower cation/H+ ratios, while enrichments or a lack of depletions are related to intermediate or alkaline pH's and higher cation/H+ ratios. The term "lower pH" is intended to encompass both weak- and strong-acid alteration (e.g. Iwasaki et al., 1964). Such interpre- tations, although not necessarily rigorous, are reasonably supported by direct observations of Li, Zn, andCu behavior in geothermal systems (e.g., Iwasaki et al., 1964 and Bamford et al., 1980). They are also supported in varying degree by a variety of general published descriptions of hydrothermal alteration and related geochemistry for both geothermal systems and mineralized sulfide systems (e.g., Meyer and Hemley, 1967; Ellis and Mahon, 1977; and Rose and Burt, 1979). d 1 and/or Pemesbitity Inplications of anomaly Distriturs Geochemical logging results and related data pertinent to geo- thermal exploration at Mt. Makushin are summarized in Table 1. Princi- pal findings include tentative recognition of: (1) hot-water entries between 1190 and 1400 feet in E-1 and, possibly, between 1304 and 1393 feet in D-1, (2) self-sealed or otherwise relatively impermeable rock overlying and/or surrounding these permeable zones in El and D-l. and (3) fractured, previously self-sealed(?) rocks which possibly permit deep ground water circulation below about 275 feet in I-l. Original permeability to geothermal waters is indicated to have been greatest in rocks located below 1200 feet in D-1, between about 1100 and 1300 feet in E-1, and between the surface and 700 feet in I-1l. Moderate to strong and relatively continuous geochemical anomalies, especially As and S enrichments, are primarily confined to these zones (Figures 1 thru 3 and Table 1). Much of this original permeability has apparently been eliminated by self-sealing (Table 1). Potential for relatively significant hot-water entries in the drilled rocks appear to be limited mainly to the 1190 to 1400 foot interval of E-l (Table 1). This potential is identified primarily by associated high As enrichments and high As to Hg ratios (Figures 2, 4, and 5). A potential for minor warm-water entries in the 1304 to 1393- foot interval of D-l is also identified (Figure 1). Temperature data 10 for D-1 (Republic Geothermal, Inc., 1982B), however, does not provide additional support for this interpretation. Geothermal Resource Potential The principal geothermal resource target in or near the area tested by drill holes D-1, E-l, and I-l is probably a higher-temperature eS 200°C?), water-dominated reservoir. Hot-water entries tentatively identified between 1190 and 1400 feet in E-l (and between 1304 and 1393 feet in D-1?), if real, possibly indicate that part of the target reservoir is relatively shallow. Rocks above 1200 feet in E-1 and between 700 and 1200 feet in D-l are either self-sealed or unfractured and probably constitute effective capping for the reservoir. Rocks below about 275 feet in I-l, however, may contain many relatively young, open fractures which permit deep access by groundwaters and concom- mittant dilution and cooling of thermal waters. These rocks are not likely to provide an effective reservoir capping. Overall geochemical logging results and related temperature data suggest that potential for discovery of a water-dominated geothermal resource is greatest for the area around E-l and smallest for the area around I-l. ll Anderson, T. W. and Sclove, S. L., 1978, An introduction to the statis- tical analysis of data: Houghton Mifflin Company, Boston, 704 p, Bamford, R. W., 1978, Geochemistry of solid materials from two U. S. geothermal systems and its application to exploration: Univ. of Utah Research Inst., Earth Science Lab. Report No. 6, 196 Pp. Bamford, R, W., Christensen, O. D., and Capuano, R. M., 1980, Multi- element geochemistry of solid materials in geothermal systems and its applications--Part 1: The hot-water System at Roosevelt Hot Springs, KGRA, Utah: Univ, of Utah Research Inst., Earth Science Lab. Report No. 30, 168 p. Bamford, R. W., Christensen, 0. D., 1979, Multielement geochemical exploration data for the Cove Fort—-Sulphurdale Known Geothermal Resource Area, Beaver and Millard Counties, Utah: Univ. of Utah Research Inst., Earth Science Lab. Report No. 19, 47 Pp. Christensen, O. D., Moore, J. Ne, Capuano, R. M., 1980, Trace element geochemical zoning in the Roosevelt Hot Springs thermal area, Utah: Geothermal Resources Council, Transactions, v. 4, p. 149152. Davis, J. C, 1973, Statistics and data analysis in geology: John Wiley and Sons, Inc., New York, 392 p. Ellis, A. V. and Mahon, W. A J., 1977, Chemistry and geothermal system: Academic Press, New York, 392 p Iwasaki, I., Hiyayama, M., Katsura, T., Ozawa, T., Ossaka, J., Kamada, M. and Matsumoto, H., 1964, Alteration of rock by volcanic gas in Japan: Bull. Volcanologique, v. 27, p. 65-78. Koksoy, M., Bradshaw, P. M. D., and Tooms, J. S., 1967, Notes on the determination of mercury in geological samples: Inst. Mining Netall. Trans., v. 76, p. B121-B124. Meyer, C. and Hemley, J. J., 1967, Wall rock alteration: in Barnes, H. L., ed., Geochemistry of hydrothermal ore deposits: Holt, Rine- hart, and Winston, Inc., New York, 166-235 p. Republic Geothermal, Inc., 1982A, Geologic logs for Mt. Makushin prospect temperature gradient holes D-l, E-l, and I-l. Republic Geothermal, Inc., 1982B, Temperature data for Mt. Makushin prospect temperature gradient holes D-l, E-l, and I-l. 12 Robertson, D. E., Fruchter, J. S., Ludwick, D. J., Wilkerson, G L., Crecelius, E. A, and Evans, J. C, 1978, Chemical characterization of gases and volatile heavy metals in geothermal effluents: Geo- thermal Resources Council Trans., v. 2, p. 579-582. Rose, A. W. and Burt, D. M., 1979, Hydrothermal alteration: in Barnes, H. L., ed., Geochemistry of hydrothermal ore deposits, second edition: John Wiley and Sons, New York, 173-235 p. White, D. E., 1967, Mercury and base-metal deposits with associated thermal and mineral waters, in Barnes, H. L, ed., Geochemistry of hydrothermal ore deposits: Holt, Rinehart, and Winston, Inc., New York, p. 575-631. 13 Table 1. Sumary of Geochemical Logging Results and Rolated Nata for Drill Holes D-1, B-1, and I-1. GBSERVATIONS INTERPRETATIONS Depth General Type! Geochemical Gain or Loss Drilling | Relative | Max. in, (-) = loss, w= weak | Fluid Interval |of Geochan. (feet) Anomaly Approx, | Alteration Oonditions Permeability (Based on Goeochem. ) Rato of | Tamp, Gradient, (°C/tm) Recovery Present ‘SUMART/COMENTS Dl/ | LI As S(+)] WH w+) ] WC +)] -) 60-500 D1/ {none 500-700 D-1/ | none 700-800 D-l/ | Litt As-S(+)] WC) | He 800-1200 Dl/ [LiF As S(+)/ HM [HS 1200-1429) B-1/ [LIP As-S(+)]M(4) |S 0-402 B-l/ [Li-P-As-S(+)] 6(+)-[ Moe 502-1107 B-l/ | Li-P-As-S(+)] W(+)-] 1107-1501 B1/ Li-F-As-S(+)] S(-)-] S-VS] S-M 1190-1217 1242-1292 1330-1340) 1361-1400) Weak rock alteration probably of geothermal and weath- ering origin. Rocks probably are permeable and con- tain ground water. No significant hydrothemal alteration, Rocks prob- ably are permeable and contain groundwater. No significant hydrothermal alteration. Rocks prob- ably are and have been relatively impermeable. Weak rock alteration probably of water-daninated goo- thermal origin, Rocks probably are thoroughly sel f- sealed. Moderate to strong rock alteration probably of water dominated goothomal origin. Rocks probably are mostly self-sealed. Minos hot-water entries may occur between 1304 and 1393 foot (see text). Variable, weak to strong, alteration probably of water-dominated jeothormal origin. Rocks probably are thoroughly self-sealod, Weak to modorate rock alteration probably of water— dominated geothemal origin, Rocks probably are thoroughly sel f-sealed. Woderate to strong alteration probably of water- dominated geothermal origin. Rocks probably are par- tially « sealed but may be locally permeable, espe- clally within or near the interval 1200 to 1400 feet. moderate |moderate|Mot-water entries possibly occur within these inter to high vals (soe text). wn Table 1, Summary of Geochemical Logging Results and Related Date for Drill Moles D-i, B-1, and I-1 (cont.). CBSERVATIONS INTERTRETATIONS Depth Genoral Type| Geochemical Gain or Loss Drilling] Relative] Max. [Approx [Alteration Conditions Permeability Interval |of Geocham, |(+) = gain, (-) = 1 w=woak | Floid | Rate of | Temp. |Tamp. (Based on Geochem.) ‘SUMMARY / COMENTS: (feet) | Ancmaly Loss Temp. (°C) |Gradient Recovery (°C/ton) | Temp. [pil -y/ 1i-P-As- S(+)] W(+)- 47] 204 low to | Moderate to strong rock alteration probably of water— 10-312 u(-) 421 v. low |dominated geothermal origin. Rocks probably are mostly self-scaled to a depth of 275 feet. iy LA-F As-S(+)]S(4)-| VS-] M(4) EM 65 147 moderate Moderate to weak rock alteration probably of water 312-706 M(-) to low? | dominated geothermal origin Rocks possibly have been self-sealed and later refractured, ty Li-F As-S(4)/S to |S to] 19 470 to} (200°C|neut. woderate Weak rock alteration probably of water-dominated geo- 1106-1500 oil -15 1 to low? | thermal origin. Possibly have deep ground-water () circulation in young fractures. TABLE 2. ESTIMATED GEOCHEMICAL BACKGROUND (x) AND THRESHOLD (X+2s) VALUES ELEMENT BACKGROUND CATEGORY (ROCK TYPE OR FORMATION) AvG. 28° Andesite/Dactite!'® Cinders/Lahar2"® —_ piorite-136 Diorite-24"6 x 28 x 2s x 2s x 28 46.(?7) 10. — 82.02) - 49.(?) - 36.(?7) - 10. 0.9 1.0 2.0 - 4.0 - 5.7 - 1.0. 0.003 0.002 0.022. - + 0.032 - 0.022 - 0.002 24. 3. 12. - 14. - 6.5 ~ 3. 230. 35. 220. - 140. - 70. - 35. 4.16 0.45 6.05 - 5.95 ~ 6.15 - 0.45 57.4 0.8 50.5 - 52.2 - 51.6 - 0.8 27. 6. 80. - 145. - 110. - 6. 1. 1. 2. - 1. 7 1. = 1. 29. 2. 28. - 30. + 26. - 2. 116. 24. 136. - 118, = 96. - 24, <0.2 - <0.2 - <0.2 - <0.2 7 - 7 Based on samples D-1/502-597, D-1/597-699, and D-1/699-802. 3 Based on sample D-1/990-1150, 4 Based on sample E-1/805-911, 5 Based on sample I-1/1302-1410. g Average 2s value for Mt. Makushin background data (see text). Background values followed by (?) possibly include significant hydrothermal enrichr-~t or depletion (see text). FIGURE 1. Hg. Ae. S. Li. F. Co. S102. Cue Me. Ph. ond Zn Getne & Levees (Gal) ve Depth for t eotte (100-feot) Cuttings end Cor Ortll Hele D-1, Hount Mekuchin Prospect. Unelacke le PPB He OaL PPM Ae GAL as oa PPM te OOL PPH F oat PPH Ce G8 PPH Pe Oa PPH Ze oat og’? 00.9 g7-10 1.09 gi: | A z100. 200, gf 8 og® 20, gg100. 200, at -03 - 5 F . . 20. " ae 0 . F . : 33. %. 3. " 83. 3. 2. e » in 6 Rr “a. ote I ? ot in 8 re 3. 9: 9: ae. - as. 1 10; voz . °. ue i} -20. 0. 12: v2 -42. oe. 1304, l lie tyes! -100. E a Ss 8st FIGURE 2. ve Depth fer "t + Aes S. Lt. Fe Co. $102, Cu. Me. Pb. and Zn Getne ompootte (100-foot) Cuttings and Core Senplee from Hount Mekuehin Prospect. Uneleacke lelend, Aleoke.@ PPO Hy oat PPH Ae al zs ou PPM Le oat PPH F oat X Co oat 2 8102 oat Pen Ce PPH Pb oat PPh Ze al 04 {2 200, g10. 0-9 5:10 1.09 g;3- 20, 9; !09. 400, 954-00 : i ;3. 20, oz !90. 200, e. a. ’ " e. “2. 2 2 . °. -40. y¥ ¥ hy co 8. 4 4 3 co 1. Ss 3: . °. 10. 6 6 6 . a a4. ’ ’ ’ oe a 10. 8 8 8 8 eo. e. o. 9 9 9 9: 2. a. nu. 10 10 10} 10} 10’ s a a. " " " " " . oo oo na | [ [if] » 43 vy 13 43 y I [ [ [ .. [ n. a 2. ae. 1S: 1s 15) Wotest Depth o! ° 16 15; 1S: FIGURE 3. Hg. Ao. S. Lis Fe Cor S102. Cue Hor Phe and Zn Gotne & Levece (GAL) ve Depth for t cotte (100-feot) Cuttings end Core Seomplee from Drill Hole Int, Mount Hekushin Prospect, Uneleske Ielend. Aleoke.@ PPB He Gal PPH Ac OaL 38 eu Pri Le Oat PPM F QOL Ce Obl PPH Ce aL PPH Me ObL PPM Pb BAL PPM Ze Oat of’: 200) y 710-9 00-9 7:10 1:09 g;3: 20, gj !99- 0 z 09g 109- 200, 9 ¢2- 8) ost: 20, 95109. 200, wv. ®. -18. °. “ . 0. ' ' ’ ' ' ' ' ' ' a. ®. -38. °. a 2 2 2 2: 2: 2 2 2: 2 “13. 2 to. °. o. ° 3 3 3, 3 3; 3 3; 3 3: 2 -38. « °. « 4 4 4 4 4 4 4 4 4 nm re : -10. a 2 oo 5 5 sf 5 s 5 5 5 5 m4. % o18. © ° . 6 6: 6; 6 6 6 6: 6: 6; a. s. 10. ° ° ma. 7 7 7 7 7 7 Tv 7 Tr -8. . 1s. 4 +. 8 8: 8; 8 8: 8 8} 8: 8: “20. 2. -20. ° 2. ‘ 9; 9: 9 9 9: 9: 9 9 9 26. oe 1s. o. o. “4 10 10 vot 103 10 10 19 103 10 “3. " 40. o. ° -30. wW " " " " " " " " -22-. -o. “8. e. 4 2 12 12 12 12 V2 42 V2 42 vat " 38. o. a -10. 13yh iB) 3; 43: Vy; 13: 133 3; V3: o. o. o oe. o. o. v4 4 vat V4 vad 4 4 14 14 “10. ; 0. os. o | 2. | “4 15 15 15 15 15 15 15 15 1s: Motest Depth chewn tn 100 ¢. © Plotted velwce ore Deckground veluce (Teble 2) from & lecece (GAL) eolouloted by oubtrocting Inet geecheatee! dete (Appendix DI. FIGURE 4. Hg. As» S» Lir and F Gains & Losses (G&L) vs Depth for Individual (ca. 10-foot) Cuttings & Core Semples from Dr Hole E~1. Mount Mekushin Prospect, Unelasks Island, Alasne PPB He Gal PPM As Gal 2S Gal PPM Li Gal PPM F Gal 04100- 200, 104202 80-9 10q2 2.0 10402 20, 10+ eos 40. + + 1 I | I r - I t L L > + 7 11 114 _ 280. | 190. 7 me | 210. 1 200. I 150. 1180-4 aa at 190. 12 12 [+ T 90. 1217be | I 160. I . 140. 1242 4 4 140. t t 210. > +> 129267 7 13+ 134 200. + 140. 200. isso L+ [ 199. 1345' + 120. 1361 T 4 100. T 7 170. 1400+ Ld Neteet Depth ehewn in 100 feet unite. @ Pletted velues sre epperent geine & leseee (Gal) eeleulated by subtracting beckground velues (Table 2) free origins chemice! dets (Appendix £)- — Indicstec possible het-weter entries able 1). FIGURE 5S. As» Hg» and As/Hg vs Depth for Individual (ea. 10-foot) Cuttings and Core Samples from Drill Hole E-1, Mount Makushin Prospects Unalaska Island, Alaska. PPB Hey Ae/Hg PPM Ae 102 100-9 102 200, o£ 8.9 I | t { 7 nN 33. 10. sf 19 22- 29. Neteet Depth sheen tn 100 feet units. — Indicates possible het-weter entries (see Tebie 1). APPENDIX A Statistics for Background Sample Data 22 €2 Table A-1. Simple Statistics for Andesite-Dacite Background-Sample Geochemical Date. *4* Simple Statistics *** MT. MAKUSHIN PROSPECT UNALASKA ISLANT, ALASKA Drill Hole: D-1 Data Name #Data Minimum Maximum Mean Variance Deviation PPB He 3 41.000 51.000 46.000 25.8 5.000 PPM As % -390 1.260 -B67 243 2493 *S 3 -AB2 004 983 133-005 O01 PPM Li 3 22.900 25.000 24.000 3.008 1.732 PPM F Kel 220 .000 250.000 238.300 300. 17.321 % Ca 3 3.9200 4.300 4.160 - 508-001 225 % $102 3 57.100 57.800 57.367 143 ~379 PPM Cu z 25.699 32.008 26.667 e .33 2.887 PPM Mo 3 1.000 2.000 1.333 2333 -577 PPM Pb 3 28.400 30.000 29.333 1.33 1.155 PPM 2n a 108.026 136.000 116.030 118. 12.166 APPENDIX B Statistics for Element Gain and Loss Values Fran Composite (100-foot) Cuttings and Core Samples Sz Table B-1. Simple Statistics for Element Gain and Loss Values and Core Samples. *** Simple Statistics *** HT. MAKUSHIN PROSPECT UNALASKA ISLAND, ALASKA Drill Holes: D-1, B-1, I-1 Data Name ‘Data PPB Hg GEL PPM AS G6L % S G&L PPM Li G&L PPM F G&L % Ca G&L % S102 G&L PPM Cu GEL PPM Mo G&L PPM Pb GEL PPM 2n GEL 46 46 46 46 46 46 46 46 46 46 46 Minimum -37.088 - 688 — 006 -8.A08 68.080 '-2.4708 4.100 -108 .000 -1.000 -1.000 -48.000 Maximum 394.0860 289.308 3.428 17.0088 1898. 008 1.350 4.708 120.800 5.088 5.000 94.000 Mean 45.656 22.856 2293 2.791 134.904 -.3562 2277 2.069 -485 1.525 53.977 Variance -946+004 -540+804 + 345 24.6 -967+085 -967 3.30 2 198+404 -813 3.05 511. from Composite (100-foot) Cuttings Deviation 97.263 58.318 - 587 4.956 311.043 963 1.616 43.621 922 1.748 22.598 Table B-2. Spearman Rank Correlation Matrix for Element Gain and Lose Values from Composite (100- foot) Cuttings and Core Samples. #°* Spearman Rank Correlation Matrix ¢** MT. MAKUSHIN PROSPECT UNALASEA ISLAND, ALASEA Drill Holes: N-1, B-1, U-t PPAR He PPH As OS PPM Lt PPK EF Ca X% sio2 PPM Cu PPM Mo PPM PD OPPH 2n PPR He CEL 1.008 143 -?76 +226 +319 -.492 -27@ 0 -.278 +351 +849 010 (6) (46) (46) 6 46) (AB) (16) (16) Cte) 46) 6) 08D +003 327 -u3e O64 015 eo? 033 +030 088 373 473 PPM Bs G&L 143 1.000 +868 -608 *h2@0 2298 +203 -.1%1) 009 +029 -.958 (46) € OY (46) (46% (46) 6 46) (46+ 146) 6 46) (46) (46) -327 +08 - 000 808 -080 022 +087 128 +479 424 154 3S CoL +276 +860 781 +705 -. 586 4310-316 137 +105 -.039 (46) 46) (46) (46) (46) (46) (46) ¢ 46) ¢ 46) (46) +038 008 eee 008 090 081 +015 +317 +252 +397 PPH LO G&L +226 -6ae +781 1.008 +688 -.666 +56@ -.452 +059 212 O33 (46) (46) (46) ( @) € 46) (46) (46) € 461 (46) 6 46) (46) 064 088 088 008 008 088 008 eo +318 -076 412 PPH P GGL +319 524 +785 -688 1.008 -.648 554 9 -.356 +229 ~.020 134 (46) (46) 6 46) 6-46) 6 8) 6 46) Fa) 0 46) a) 46) -O15 ' 038 +908 eo -P08 + 008 980 O11 +61 Aad +3108 % Ce G&L -.402 -.206 -. 886) -.866 1648 «1.808 - 22 buh -.359 45-222 (46) (46) (46) (16) (16) (8) 46) 46) 4) 46) 48) U3 -22 080 400 088 008 008 P08 487 382 +287 % 8102 CEL 228 203 2434 +560 “654 -.A@2 1 BO@-.447 11600 ~.852 176 (46) (46) (46) (a6) £6) (46) FC 8) (46) «6 46) 60-46) 46) 033 +887 081 008 030 +080 088 - BOL +276 363 128 PPH Cu G&L -.275 -.97) 6316-482 -.336 -f¥5 = .447 0 1.088) - 000 122 2A1 (46) (46) 6 46) 1 46) 8 46) C46) 6 46) Cd ad 4) 8) W308 +128 O15 001 OM +888 081 +080 393 -288 +028 PPM Mo G&L -351 0-088 137 059 +2290 -.359 W160 -.040 1.000 105 354 (45) (46) (46) (46) (46) (46) (46) ' 46) € Bo) (46) 0 46) 088 429 -317 +348 061 +007 +276 +392 +880 +253 -098 PPM Ph S6L +840 +029 +105 +212 -.#20 +045 -.8d3 +122 +195 1.008 350 (a6) (46) 646) (0 46) 046) 6 460 6 46) 0 46) Cad Hi (46) 375 420 +252 +076 +144 +382 363 288 -253 #0 088 PPM Zn 36L -@18 0 -.154 0-839 033 «13400 -.422 178 251 +354 +358 1,008 (46) (46) (046) (46) (46) (46) 048) (48) (646) 60 46) fC 8d 473 154 397 412 +310 287 128 02) 088 008 +008 *** Correlation Coefficiert / (# of data points) ° Significance Le NH FIGURE B-1. Spearman Rank Cluster Analysis for Element Gain and Loss Values from Composite (100- foot) Cuttings and Core Samples. *** Spearman Rank Cluster Analysis *** MT. MAKUSHIN PROSPECT UNALASKA ISLAND, ALASKA Drill Holes: D-1, E-1, I-1 -.1619 0317 .2254 -4198 6126 9063 -.2587 -.0651 .1286 3222 -5158 7095 9031 Pom et ent Hm mt mnt — at an ap np pe np ng ng ny pwr t nanan +--+ 2 == + === === + ~ PPB He G&L I I e--- PPM As S6L I I I eon on - == % S G&L I I I eran n---- === PPM Li G&L I I I enon --------------- --- PPM F G6L I I [alalaiaietateatatatetetetaietateietaianitaemeeeeeneeee ees % S102 GEL I I erat nn nnn nn nn -- nn n- + --- +--+ PPM Mo G&L I I STN UTNTTNITET RTT --- PPM Zn G&L grt nt rt crane nnn eee n nnn nin == 2-2-2 -- eee PPM Pb GEL I I .-a--- -s0------=------ % Ca G&L I I ett trot tae teens renee ine -- e+ +o - 2-2 -- +--+ +--+ oe eee PPM Cu SEL Parma met mnt mat mat a at - tp ep ng an np ey -.2587 -.0651 . 1286 .3222 .5158 - 7095 9031 -.1619 0317 2254 -4198 6126 8063 DENDROGRAM — WALUES ALONG K-AXIS ARE SIMILARITIES - 2698 -8601 -6948 6474 4964 - 8836 +3539 22275 2157 5054 APPENDIX C Statistics for Element Gain and Loss Values Prom Individual (ca. 10-foot) Core Samples 28 Table C-1. Simple Statistics for Element Gain and Loss Values from Individuel (ca. 10-foot) Core Samples. **% Simple Statistics *** MT. MAKUSHIN PROSPECT _UNALASEA ISLAND, ALASKA Drill Hole: E-1 Data Name #Data Minimum Maximum Mean Variance Deviation PPB Hg G&L 19 -44 .000 116.000 -7.316 ©191+004 43.737 PPM As G&L 19 -1.8008 1396 .8008 93.174 997+ 005 515.621 % S G&L 19 O02 3.788 - 887 1.408 1.181 PPM Li G6L 19 -1.000 26.080 5.263 37.98 6.145 PPM F G&L 19 90.080 280.808 167.895 2 2314804 48.025 o£ Table C-2. Spearman Rank Correlation Matrix for Element Gain and Loss Vaetues from Individual (ca. 10-foot) Core Samples. *** Spearman Rank Correlation Matrix *** MT. MAKUSHIN PROSPECT UNALASKA ISLAND, ALASKA Drill Hole: FE-1 PPB Hg PPM AS %S PPM Li PPM F PPB Hg GEL 1.000 .303 .346 469 © -.v92 ( @ (19) (19) (19) ( 19) -008 -. 103 072 020 .355 PPM AS G&L =s«w303.—s«1«.808s—«i«—(iti‘«w SGC 125 (19) (¢ #®) (19) (¢ 19) (19) 103 . 000 082 O11 -308 % S GEL 346 -631 1.008 916 -.189 (19) (19) ( @) ( 19) ( 19) 072 - 002 . 080 a) -278 PPM LI G&L -469 -516 -916 1.008 -.342 (19) (19) (19) ( @) ( 19) 028 O11 - 000 - 088 O74 PPM F G&L -.092 -.125 -.189 -.342 1.000 ( 19) ( 19) ( 19) ( 19) ( @) -355 -308 278 2074 - 088 *** Correlation Coefficient / (# of data Points) / Significance TE Figure C-l. Spearman Rank Cluster Analysis for Element Gain and Loss Values from Individual 10-foot) Core Samples. *** Spearman Rank Cluster Analysis *** MT. MAKUSHIN PROSPECT UNALASKA ISLAND, ALASKA Drill Hole: E+1 ~.0904 21062 +2908 -4814 -6720 -8627 -~.1858 -0849 -1955 - 3861 -5767 - 7674 -9580 Frm nnd mm mnt nt mat ~ am et ee at nt 2 pg ny gta tron rane on - + --- +--+ +e PPB I 1 or nnn eee PPM I I I I o--- *¥ 8 I I I gto naa cte ne secec nn - sn -nan-n-------------------+---------- PPM I eT) Fatt tan re nnn nan nen nan nnn - - + + e PPM term nt met nt nt ~ ot a at tt np gp ng nn gy -.1858 - 0849 1955 - 3861 -5767 7674 95898 —. 0904 -1002 - 2908 4814 -6720 8627 DENDROGRAM - VALUES ALONG X-AXIS ARE SIMILARITIES (ca. 35551 25735 9156 ~ 21434 APPENDIX D Original Geochemical Data For Camposite (100-foot) Cuttings and Core Samples 32 ROGRY MOTNTAIN SEOCHEMIGAL Gone 1323 W. 7900SOUTH °* WEST JORDAN, UTAH 84084 * PHONE: (801) 255-3558 WEST JORDAN OFFICE Certificate of Analysis Page 1 of 8... RMGC Numbers: Date: November 9, 1982 deca gon nosh 2=22=37- Client: Boe Seen oe & Assoc., Inc. Foreign Job Now: ceccnenee- Seattle, Washington 98112 invoice Noi.M1.05954 Client Order No.: none Report On: 46 Composites from 368 Core and Cutting Samples Submitted by: Robert W. Bamford core ieee 9/21/82 Analysis: Mercury, Arsenic, Lithium, Sulfur, Calcium, Si02, Copper, + Molybdenum, Lead, Zine and Silver. Arsenic determined by hydride. Sulfur determined by leco induction furnace. Remaining elements determined by atomic Romackes absorption. ce enc. file (2) report: Lewis Downey, 961 lst Ave., SLC, Utah 84103 BGT/1w “ei —_————$—<— All valves are reported in parts per million uniess specified otherwise. A minus sign (—=) is to be read “less than’ and a plus sign (+) “greater than.” Voives in parenthesis are estimotes. This analytical report ‘is the confidential property of the above mentioned client and for the protection of this client and ourselves we reserve the right to forbid publication or reproduction of this report or any part thereof without written permission. NO = None Detected 1 ppm = 0.0001% 1 Troy oz./ton = 34.286 ppm 1 ppm == 0.0292 Troy oz./ton a SALT LAKE CITY, UTAH RENO, NEVADA 33 TUCSON, ARIZONA slient Robert W. Bamford Date. 11/9/82 RMGC Job No._ 92-22-27 -SI Sample No. Del D-1 1393-1429.5 E-1 60-90 100-200 200-300 300-400 400-500 502-597 597-699 699-802 802-899 899-959 959-990 990-1150 1150-1202 1202-1304 1304-1393 0-101 101-200 200-306 306-403 403-502 502-600 600-701.5 701.5=805 805-911 Page__2___of___8 ppb ppm ppm 4 RG Mercury Arsenic Lithium Sulfur Cat.e* 94 4.0 16 0.032 122 44 3.5 19 0.012 1 61 8.3 20 0.030 son/s0%: 5 44o 5.5 21 0.012 . 385 1.8 24 0.002 1 51 0.3 25 0.004 1 46 1.2 22 0.002 1 uy 1.1 25 0.002 5 54 3.7 22 -0.002 1 15 2.0 20 0.008 1 90 1.2 21 c.002 1 82 2.0 12 0.022 2 94 7.5 14 0.084 2 260 40 28 0.54 202/602: 2/ 57 43 23 1,20 0 742/26: 3/ 130 16 31 3.46 3 255 18 15 0.30 2 105 9.0 15 0.18 3 340 24 20 0.84 3 160 9.4 17 0.17 3 140 8.8 27 9.13 3 50 10 20 0.070 3 81 9.0 20 0.11 3 65 * 7.2 21 0.24 3 4g 4.0 14 0.032 3 “Background categories: 1 = Andesite-Dacite, 2 = Cinders-Lahar, 3 = Diorite-1 and 4 = Diorite-2 LUSTY QUDATAIR SeUSDEMICAR SOR. oto aaa 34 Client__Robert W. Bamford ited: / 9/82 RMGC Job No._82=22=37—57 Page__3 of _8 Sample No. Heneuty hpaenic tithium burrur Cetee E-1 911-1007 81 “14 16 0.080 3 1007-1107 29 14 19 0.2 3 1107-1205 51 27 20 0.72 3 1205-1302 59 290 21 1.46 3 1302-1400 22 21 16 O.4k 3 E-1 1400-1501 12 14 18 0.090 3 I-1 10-90 73 17 15 0.86 4? 100-201 63 55 16 1.20 4 201-312 21 2u 8.8 0.37 4 312-406 15 23 8.5 0.21 4 406-501 110 27 9.5 0.22 4 501-600 130 50 9.3 0.22 4 600-706 _180 295 12 0.48 4 706-811 17 22 7.3 0.10 4 811-907 10 7.7 8.3 0.032 4 307-1008 10 21 5.8 0.10 4 1008-1100 7 22 7.5 0.080 4 1100-1207 14 9.0 6.3 0.036 4 1207-1302 9 5.2 7.5 0.016 4 1302-1410 36 5.7 6.5 0.022 4 I-1 1410-1500 18 18 6.8 0.076 4 *Background categories: 1 = Andesite-Dacite, 2 = Cinders-Lahar, 3 = Diorite-1 and 4 = Diorite-2 BUSLY BODNIOIN sVsTRMIEAL Sate. ‘ 180 sevaon rucson aerrose 35 Client_Robert W. Bamford Date 11/9/82 RMGC Job No._S82=22=37=5 Ce Sample No. a S163 ae (io D-1 60-90 4.75 54.9 25.6 55 100-200 448 56.5 26.4 60 200-300 4.38 55.6 26.0 50 300-400 4.45 57.0 26.6 80 400-500 4.50 55.9 26.1 50 502-597 4.28 57.1 26.7 30 597-699 3.90 57.8 27.0 25 699-802 4.30 57.2 26.7 25 802-899 4.33 57.1 26.7 75 899-959 4.00 57.2 26.7 65 959-990 4.20 56.7 26.5 50 990-1150 6.05 50.5 23.6 80- 1150-1202 4,88 54.7 25.6 60 1202-1304 3.50 52.3 24.4 90 1304-1393 4.50 53.1 24.8 90 Del 1393-1429.5 3.48 54.4 25.4 us E-1 0-101 4.40 52.6 24.6 70 101-200 4.60 55.4 25.9 110 200-306 4.53 54.8 25.6 85 306-403 4.38 54.7 25.6 100 403-502 5.18 53.6 25.0 125 502-600 4.78 53.2 24.9 105 600-701.5 3.73 56.9 26.6 105 701.5-805 4.95 52.5, 24.5 265 E-1 805-911 5.95 52.2 24.4 145 © 29877 WaUWTAI egeDemIeAL e2aP. e190 sevens reson aair0se . 36 Client Robert W. Bamford Date___13/9/82 MGC Job No._82=22=37 =. Page__5 of __8 Sample No. ae au a et Eel 911-1007 5.35 52.4 24.5 200 1007-1107 5.40 53.1 24.8 240 1107-1205 4.75 52.4 24.5 165 1205-1302 5.03 52.5 24.5 185 1302-1400 4.85 53.1 24.8 175 E-1 1400-1501 5.80 54.2 25.3 145 I-1 10-90 5.00 54.8 25.6 95 100-201 5.00 Bled 23.9 75 201-312 5.45 52.7 24.6 120 312-406- 6.00 See 24.9 iS 406-501 6.55 51.7 24.2 100 501-600 6.90 50.0 23.4 95 600-706 6.00 53.4 24.9 - 100 706-611 7.30 50.8 23.7 125 811-907 6.15 50.1 24.3 90 907-1008 7.15 48.5 22.7 125 1008-1100 7.50 47.5 22.2 150 1100-1207 7.45 50.6 23.6 95 1207-1302 7.35 50.1 23.4 75 1302-1410 6.1 51.6 24.1 110 I-1 1410-1500 7.45 48.6 22.7 215 ® SUSLY MOGNTAIN SBOSDEMIEA sage. CS) 37 Client__Robert W. Bamford Date____ 11/9/82 sme Job No._82=22-37=-ST Page of _2 ‘ Sample No. ae res eau ec D=-1 60-90 2 30 118 -0.2 100-200 2 34 122 -0.2 200-300 2 30 220 -0.2 300-400 2 32 158 -0.2 400-500 1 32 126 -0.2 502-597 2 30 130 -0.2 597-699 ne 28 108 -0.2 699-802 2 30 110 -0.2 802-899 2 34 122 -0.2 899-959 2 28 112 -0.2 959-999 2 28 120 -0.2 990-1150 2 28 136 -0.2 1150-1202 a 28 110. -0.2 1202-1304 2 30 104 -0.2 1304-1393 2 30 108 -0.2 D-1 1393-1429.5 2 34 136 -0.2 E-1 0-101 2 30 144 -0.2 101-200 rd 30 116 -0.2 200-306 Z 30 70 -0.2 306-403 2 34 110 -0.2 403-502 3 34 134 -0.2 502-600 2 30 136 -0.2 600=701.5 Bl 32 94 -0.2 701.5=805 ni 32 128 -0.2 E-1 805-911 1 30 118 2. -0.2 BUEL] MOUNTAIN IeOseeMIGAl Sane. #180 sevaoe Client__Robert W, Bamford ate 9/82 eve Job No._82-22-37=5" Page 7 otf __ 2 ppm ppm ppm ppm Sample No. Molybdenum Lead Zinc Silver Ee1. 911-1007 z 32 154 -0.2 1007-1107 aa 32 150 -0.2 1107-1205 2] 34 134 -0.2 1205-1302 6 34 140 -0.2 1302-1400 2 30 130 -0.2 E-1 ©1400-1501 1 32 146 -0.2 I-1 10-90 1 30 126 -0.2 100-201 1 28 80 -0.2 201-312 iL 26 96 -0.2 312-406 1 26 102 -0.2 406-501 -1 28 90 -0.2 501-600 ul 26 88 -0.2 600-706 1 26 Bu 2 706-811 nal 30 88 oe 811-907 1 28 100 -0.2 907-1008 1 26 82 -0.2 1008-1100 1 26 66 -0.2 1100-1207 oi 30 98 -0.2 1207-1302 1 28 86 -0.2 "1302-1410 1 26 96 Bolle T-1 1410-1500 2 26 82 0.2 BUS) WUOWTOIN S8OSTEMIEAL sau, e180 sevens TUCSOs aaczove 39 cient RObert W. Bamford bat 11/9/82 RMGC Job No._82—-22=27-S! Reference Standards Page__8 ot JS. Sought Found Sought Found ppb Mercury ppm Copper RMG 6 340 340 PR-1 100 75 RMG 6 285 HV-1 0.52% 0.53% ppm Arsenic % Molybdenum SY“- 2 18 17 PR- 1 0.594 0.600 SY - 2 18 HV -1 0.058 0.057 ppm Lithium ppm Lead RMG 3 13 13 RMG 3 68 82 RMG 4 13 12 RMG 4 82 100 % Sulfur ; ppm Zinc PR-1 0.79 0.73 RMG 3 76 92 PR-1 0.73 RMG 4 214 230 % Calcium ppm Silver RMG 3 0.16 0.18 RMG 6 30 30 RMG 4 0.54 0.28 RMG 1 82 74 % Si02 SY - 2 60.1 60.0,60.3 MRG =- 1 39.3 39.6,39.0 2 LD iateacan EAL nese Byy6@n Thomas S >, (ea HURT) WODUIAIN BROSTEUNSAL 2902, SS aaa APPENDIX E Original Geochemical Data For Individual (ca. 10-foot) Core Samples WEST JORDAN OFFICE HOGRY MOCRTAIN SEOENEMIGAL SORP. 1323 W. 7900SOUTH °¢ WEST JORDAN, UTAH 84084 © PHONE: (801) 255-3558 Certificate of Analysis November 30, 1982 Robert W. Bamford & Assoc., Inc. 2315 26th Ave., E. Seattle, Washington none 19 Original Samples Robert W. Bamford 9/21/82 98112 RMGC Numbers: Local Job No.8.2=2.2=37- Foreign Job No.:..._....... Mercury, Arsenic, Lithium, Sulfur, and Fluoride. Mercury and Lithium determined by atomic absorption. Arsenic determined by hydride. induction furnace. electrode. enc. file (2) Sulfur determined by leco Fluoride determined by specific ion report: Lewis Downey, 961 lst Ave., SLC, Utah 84103 BGT/1lw All valves are reported in parts per million uniess specified otherwise. A minus sign (—) is to be read “less than” and a pius sign (+) “greater thon.” Veives in parenthesis are estimates. This anclytical report is the confidenticl property of the above mentioned client and for the protection of this client and ourseives we reserve the right to forbid publication or reproduction of this report or any part thereof without written permission. 1 Troy oz./ton = 34.286 ppm SSF 42 ND == None Detected 1 ppm = 0.0001%, SALT LAKE CITY, UTAH RENO, NEVADA 1 ppm == 0.0292 Troy oz./ton TUCSON, ARIZONA s Cient__Robert W. Bamford 0 ate_11/30/82 nme Job No._82-22-37-SL_ eS Sample No. oe Reseaae ee ee Sa ey E-1/1107-1121 22 13 16 0.19 0.042 SmI 1121-1133 26 15 18 0.38 0.033 3 1133-1145 30 28 16 0.32 0.034 3 1145-1160 86 29 23 1.88 0.035 3 I) 1160-1175 34 33 18 0.38 0.034 3 j 1175-1190 165 26 2l 1.46 0.029 3 1190-1205 ~ 31 41 18 0.22 0.033 3 1205-1217 135 0.14% 40 3.82 0.023 3 q 1217-1229 78 31 23 2.60 0.030 3 1229-1241 30 16 14 0.058 0.028 3 1242-1256.5 “<5 17 26 3.22 0.028 3 1256.5-1292 -5 48 14 0.28 0.035 3 i 1292-1302 a 8.1 15 0.074 0.034 3 1302-1315 33 6.6 16 0.056 0.028 3 1315-1330 10 2.2 13 0.034 0.034 3 1330-1345 15 28 20 0.40 0.024 3 1345-1361 19 9.4 16 0.11 0.026 3 1361-1379.5 22 45 17 0,25 0.024 3 E-1/1386-1400 29 50 22 1.72 0.031 3 *Background category: 3 = Diorite=1l. z.— [2 QOGTY BOBITAIN SRVCTEMISAL 88ZP. MW Wey i ica Client Robert W. Bamford Date 11/30/82 RMGC Job No._82=22=37—S° Page___ 3 of _ Sample No. Ee Sample No. ey D-1/ 60-90 0.018 E-1/ 911-1007 0.034 100-200 0.021 Ih 1007-1107 0.029 200-300 0.022 1107-1205 0.030 300-400 0.020 1205-1302 0.029 400-500 0.019 1302-1400 0.025 502-597 0.022 E-1/1400-1501 0.020 597-699 0.022 I-1/ 10-90 0.196 699-802 0.025 100-201 0.022 802-890 0.018 201-312 0.022 899-959 0.020 312-406 0.034 959-990 0.085 406-501 0.014 990-1150 0.022 501-600 7/0. OL2 1150-1202 _ 0.022 600-706 0.012 1202-1304 =O .O32 706-811 0.008 1304-1393 0.037 811-907 0.002 D-1/1393-1429.5 0.044 907-1008 0.016 E-1/ 0-101 0.028 1008-1100 0.005 101-200 0.020 1100-1207 0.003 200-306 0.080 1207-1302 0.001 306-403 0.047 1302-1410 0.007 403-502 0.060 I-1/1410-1500 0.001 502-600 0.019 600-701.5 0.016 701.5-805 0.024 ° E-1/ 805-911 0.014 BUSLY WORITAI BOSHeMIGAl Sage. e280 sevens ructos aarrone 44 - Client__Robert W. Bamforg ate_ 11/30/82 Value Sought: Mercury ppb f Arsenic ppm Lithium ppm Sulfur % Fluoride % Value Found: Mercury ppb it Ss 2 5 'O tt Sulfur % Fluoride % SUSRY BEBNVAIN SERSREMIEAL S8Rr. #1N0 sevens Reference Standards RMGC Job No.__82-22-37-5 4 L Page of __* MRG-1 SY-2 130 0.7 4 93 0.060 0.011 0.025 0.51 MRG-1 SY-2 E-1/1205-1302 E-1/1400-15 135 21 0.4 121 5.8 90 18 0.056 0.012 1.42 0.094 0.025 0.42 0.03 0.023 By Fpl 7 Byyén Thomas Tucson aarone fd APPENDIX K DRILLING PROGRAMS FOR PRODUCTION-SIZE DEEP EXPLORATORY WELL, SMALL-DIAMETER GEOTHERMAL EXPLORATORY WELL, AND TEMPERATURE GRADIENT HOLE Appendix K-l Preliminary Drilling Program Production-Size Deep Exploratory Well APPENDIX K-1 PRELIMINARY DRILLING PROGRAM PRODUCTION-SIZE DEEP EXPLORATORY WELL Operator: Alaska Power Authority - Republic Geothermal, Inc. Well No.: Makushin No. 1 Location: Makushin Valley, Unalaska Island. Alaska State Coordinates - N-1,180,100'; E-4,971,700' Datum Description and Elevation: Ground Level 1,180'+ ASL All depths listed below are measured from KB 20'+ above ground level Proposed Total Depth: 6,000'+ Hole Sizes and Depths: Surface to 50'+-26" Hole 50'+ to 250'+-17-1/2" Hole 250'+ to 2000'+-12-1/4" Hole 2000'+ to T.D.-8-1/2" Hole Casing Program: 50'+-20", 78.6# (0.375" wall) line pipe conductor 250'+-13-3/8", 61#, K-55 buttress surface casing 2,000'+-9-5/8", 43.5#, L-80 buttress production casing Blowout Preventer and Rotating Head Requirements: (Note: Maximum allowable weight of heaviest component - 4,000#) 17-1/2" Hole: None 12-1/4" Hole (250'-2,000'+): 2/ea. 1 ea. 3,000 psi single ram (1 pipe ram, 1 blind ram) hydraulic (4.e., Cameron 13-5/8" Type U or equivalent) with dual controls (one set on rig floor and one set minimum of 50' from wellhead) 12" rotating head (1.e., Grant Model 7068 or equivalent) 8-1/2" Hole (2,000'+-T.D.): Same as 12-1/4" hole with addition of: 1 ea. 3,000 psi single pipe ram hydraulic as above 1 ea. ANSI 900 series 10" master valve Procedure: iF Move in and rig up rotary drilling equipment. 2. Spud 17-1/2" hole and drill to 50'+. Open hole to 26". 3. Cement 20" conductor at 50'+ (Theoretical Volume - 75 cu ft). 4. Oril] 12-1/4" hole to 250'+; Open hole to 17-1/2". 5. Cement 13-3/8" surface casing at 250'+ with Class G - 40% silica flour slurry (Theoretical Volume - 175 cu ft). 6. Install BOP equipment. Pressure test casing and BOP to 1,000 psi. Rig up and install mud logging equipment. ae Drill] 12-1/4" hole with air or aerated fluid to 2,000'+ (Note: BOP equipment to be operated each time out of the hole). Note: Should a steam or hot water entry occur above 2,000', proceed as follows: 10. V1. 12. 13. a. Record pressure, temperature, and flow rate. b. Attempt to kill entry by cooling the formation with cold water. €! Should this prove inadequate, kill with mud. Mud weight should be maintained at a minimum to control the entry. d. Plug back with sand to a point 50' above top of entry to which depth 9-5/8" casing will be run. Prior to running 9-5/8" casing, fill hole with water and attempt to establish circulation. If circulation cannot be established with water, hole is to be mudded up and any lost circulation is to be "cured" either with the addition of LCM, FLO-CHEK treatments, D.0.B. squeezes or, ds a last resort, cement. Run and cement 9-5/8" casing with a light weight (12.0+ ppg) Class G - 40% silica flour - 50#/SK spherelite slurry (Theoretical Volume - 625 cu ft). Cement is to be circulated to the surface. Nipple up 13-3/8" x 9-5/8" expansion spool, 10" master valve and install BOP equipment. Pressure test casing and BOP equipment to 1,000 psi. Dri1] 8-1/2" hole with air from 9-5/8" casing shoe to a maximum TD of 6,000' or until a hot water/steam entry is encountered (Note: Master valve and BOP equipment is to be operated each time out of the hole.) a. All hot water/steam entries are to be tested to pit when encountered. Attempt to drill ahead using either air or aerated water after encountering entry. Total depth will be determined by pressures, temperatures, and observed flow rates of fluid entries, limited by 6,000'. Conduct short flow test as directed by RGI Production Engineering personnel. Gather fluid samples and pressure/temperature data. Note: If a liquid-dominated resource, it will possibly be necessary to initiate flow by either of the following: a. Depress fluid level by applying air pressure to the formation and holding for 24-36 hours. b. Air lifting fluid down open-ended drillpipe. 14. Following test, make bit run to clean out fill, if any. 15. If significant fill is found, run 7" slotted liner and hang with top 60'+ above 9-5/8" casing shoe. 16. Rig down and move out rotary drilling equipment. Appendix K-2 Drilling Programs for Small-Diameter Geothermal Exploratory Well ana i Temperature Gradient Hole APPENDIX K-2 PRELIMINARY DRILLING PROGRAMS A. Smal1-Diameter Geothermal Exploratory Well - Proposed Total Depth: 4,000+ Feet Procedure: 1. 2. Note: Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water- based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter L-80, 11.5 1b. casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.0.P., flow tee, and a rotating stripper head. Drill out cement using HQ (3.782") wireline coring tools with mud or water as the circulating medium. Drill ahead to approximately 1,000 feet. Cement HQ (3-1/2-inch) drill rod with casing shoe bit in hole at approximately 1,000 feet. Change over to NQ size (2.980-inch) wireline coring tools. Core ahead until encountering reservoir or 3,000 feet. If production is encountered, run short flow test to obtain fluid sample and temperatures. If no reservoir is encountered, changeover to BQ (2.360-inch) coring tools and core to approximately 4,000 feet. T.D. After reaching the resource reservoir, (4,000+ feet., or the rig Capability limit), conduct short flow test for collection of water sample for analysis prior to conducting longer term flow test. While sample analysis is being conducted, rig down drilling equipment. Rig up flow line and wellhead for flow test. Assuming analysis of fluid sample collected in steps 4 or 5 permits, a more extensive flow test will be conducted. Figure K-1 is attached for a schematic diagram of the Proposed casing program. B. Temperature Gradient Hole - Proposed total depth 2,000+ feet Procedure 1. Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. FIGURE K-1 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 4,000 FT. SMALL—DIAMETER GEOTHERMAL RESOURCE EXPLORATION WELL SURFACE Ws 8 1/2” HOLE 5” CASING TO 150 FT. 150 FT. HQ (3.78) HOLE 1,000 FT.—— HQ ROD CASING (3 1/2”) CEMENTED TO 1,000 + FT. NQ (2.98) HOLE 3,000 + FT. COMPLETED OPEN HOLE BO (2.36”) HOLE 4,000 + FT. WGI DL49 OR RIG CAPABILITY Notes: Rotary drill 8-1/2-inch hole to approximately 150 feet using a water-based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter F-25 or J-55, 11.5 1b., threaded and coupled casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6-inch B.0.P., flow tee, and a rotating stripper head. Drill out cement using a 4/-1/4-inch rotary bit with mud or water as the circulating medium. Drill ahead as far as possible or until lost circulation or hole problems force changeover to NQ size (2.980-inch diameter) wireline coring tools. After changeover, continue to core NQ or smaller size hole to total depth of approximately 2,000 feet. Run 1-1/2-inch steel tubing to T.D. (approximately 2,000 feet). Clabber mud with cement and circulate to fill the annulus. Fill the tubing with clean water and cap. Cement top 20 feet of annular space. Remove BOPE's, rig down, and move out drilling equipment. Cap tubing with threaded cap. Approximately seven to ten days after drilling operations are completed, a temperature profile will be run on the well. a) Although encountering a resource is not expected while drilling to this depth, the following is a contingency plan in the event a potentially producible resource is encountered: 1) Before running 1-1/2-inch tubing, attempt limited flow test to mud tanks to clean the well and to acquire fluid samples for chemical analyses. Excess fluid may be returned to the TGH after sampling. 2) After the test, run 1-1/2-inch tubing. Cement tubing from surface to T.D. Displace cement with water using latch-down wiper plug. 3) Remove BOPE's, rig down and move out. Cap tubing with threaded cap. b) Figure K-2 is attached for a schematic diagram of the proposed casing program. c) To abandon the temperature gradient hole, cut the tubing and casing below ground level, plug the top 15 feet of the tubing with cement, and cover the soil. FIGURE K-2 “SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 2,000 FT. TEMPERATURE GRADIENT HOLE SCREW CAP SURFACE CEMENT TOP 20FT. OF ANNULAR SPACE 8 1/2” HOLE 5” CASING TO 150 FT. 150 FT. 1 1/2” GALVANIZED PIPE [ 4 1/2” AND/ OR NQ (2.98) HOLE @—— CLABBERED MUD IN HOLE TOT.D. SCREW CAP 2,000 FT. RGI o147 APPENDIX L BUDGET AND SCHEDULE FOR PHASE II PROJECTS Appendix L-1l 6000-Foot Production-Size Deep Exploratory Well Preliminary Cost Estimate ; and Proposed Time Schedule APPENDIX L-1 6,000-FOOT PRODUCTION-SIZE DEEP EXPLORATORY WELL PRELIMINARY COST ESTIMATE* Note: Based on 6,000-foot total depth utilizing helicopter transportable drilling equipment currently in Alaska Transportation (Materials & Equipment): Mobilization to Dutch Harbor $ 880,000 Demobilization from Dutch Harbor 580,000 SUBTOTAL $1,460,000 Rig & Camp Costs: Transportation, Move In, & Rig Up $ 330,000 Operating (Rig-60 days, Camp-100 days) 1,160,000 Rig Down, Move Out, Transportation 270,000 ; SUBTOTAL $1,760,000 Location & Pits (Build, Maintain, & Clean Up) $ 200,000 Wellhead, Tubular Goods & Hardware $ 250,000 Helicopter Support (+120 Day, Including Fuel) $ 860,000 Drilling Variables: Downhole Tools (Bits, Reamers, Hole Openers, etc.) $ 450,000 Mud, Cement, & Chemicals 165,000 Air Drilling Equipment & Services (Including Fuel) 175,000 Rig & Camp Fuel 120,000 Miscellaneous, Services, Supplies, and Equipment** 445 000 SUBTOTAL $1,355,000 GRAND TOTAL $5,885 000 “x Third party costs only. Does not include Republic or Dames and Moore fees or expenses. Includes mud logging services, cementing equipment, and personnel as required; directional tools and services, fishing tools and services, 8-hour minimum production test, air transportation of special equipment requirements and service company personnel, staging facility, etc. APPENDIX L-1 (CONT.) PROPOSED TIME SCHEDULE 6,000-FOOT PRODUCTION-SIZE DEEP EXPLORATORY WELL Note: Based on 6,000-foot total depth and 60 days overall drilling time. Mobilization & demobilization times to & from the location are generously scheduled because to the probability of reduced operating time due to weather. Date May 20 May 21 - June 3 June 4 - June 2 June 25 - Aug. Aug. 24 - Sept. Sept. 6 - Sept. Sept. 11 Sept. 12 *Third party costs only. fees. 4 23 1 Day Nos. 1 2 15 16 36 37 96 97 - 110 117 -- 115 116 117 Activity Mobilize Helicopter #1 (cap. 4,000 min. sling load) Anchorage to Dutch Harbor. Move in 2/ea. crane-equipped caterpillar tractors (Cat D-5 or equiv.), build location and mobilize camp. Day 15: Mobilize Helicopter #2 (cap. 4,000# min. sling load) Anchorage to Dutch Harbor. Mobilize drilling rig Dutch Harbor to location, move in drilling supplies and equipment (anticipate using two pilots per helicopter to make maximum use of long daylight hours). Spud on Day 36. Drilling operations Days 37-41: Complete moving in drilling equipment and supplies. Day 42: Demobilize Helicopter #2 Anchorage to Dutch Harbor. Day 96: Mobilize Helicopter #2 Anchorage to Dutch Harbor Demobilize drilling rig, equipment and supplies to Dutch Harbor. Demobilize camp and cleanup location. Day 111: Demobilize Helicopter #2 Dutch Harbor to Anchorage. Demobilize caterpillar-location to Dutch Harbor. Demobilize Helicopter #1 Dutch Harbor to Anchorage. Does not include Republic or Dames and Moore costs or Appendix L-2 4000-Foot Small-Diameter Geothermal Exploratory Well and 2000-Foot Temperature Gradient Hole Preliminary Cost Estimate and. Proposed Time Schedule APPENDIX L-2 4,000-FOOT SMALL-DIAMETER GEOTHERMAL EXPLORATORY WELL AND 2,000-FOOT TEMPERATURE GRADIENT HOLE PRELIMINARY COST ESTIMATE* Transportation (materials & equipment): Mobilization to Dutch Harbor $ 90,000 4,000-foot Small-Diameter Geothermal Exploratory Wells: Move in & Rig Up Equipment & Supplies to Location $ 65,000 Drilling Labor & Equipment (est. 62 days) 390,000 Drilling Equipment & Supplies 140,000 Camp, Fuel, & Consumables 100,000 Helicopter Support (Incl. Fuel) 300 ,000 Misc. Support (Contingency) 120,000 $1,115,000 Moving Costs to Temperature Gradient Hole Location (Incl. All Labor, Equipment, & Helicopter Costs) $ 110,000 2,000-foot Temperature Gradient Hole: Drilling Labor & Equipment (est. 30 days) $180,000 Drilling Equipment & Supplies 60,000 Camp Fuel & Consumables 50,000 Helicopter Support (Incl. Fuel) 70,000 Misc. Support (Contingency) 60,000 Tear Down & Move Equipment & Supplies From Location 20,000 $ 440,000 Transportation (Materials & Equipment) Demobilization From Dutch Harbor 45,000 TOTAL PROGRAM COST $1,800,000 *Third party costs only. Does not include Republic or Dames and Moore costs or fees. Note: Date May 20 May 21 May 25 May 30 July 31 Aug. 5 Sept. 4 Sept. 11 Sept. 15 APPENDIX L-2 (Cont.) PROPOSED TIME SCHEDULE 4,000-FOOT SMALL-DIAMETER GEOTHERMAL EXPLORATORY WELL AND 2,000-FOOT TEMPERATURE GRADIENT HOLE Based on 62 days overall, drilling time for 4,000-foot small-diameter well and 30 days for 2,000-foot temperature gradient hole Day Nos. Activity 1 Mobilize Helicopter #1 (cap. 1,400# min. sling load) Anchorage to Dutch Harbor. May 24 2- 5 Set Up Camp. Day 5: Mobilize Helicopter #2 (cap. 4,000# min. sling load) Anchorage to Dutch Harbor. May 29 6- 10 Move in and rig up drilling equipment (4,000' location) Day 10: Demobilize Helicopter #2 Dutch Harbor to Anchorage July 30 11 - 72 Drilling operations (4,000' well) Day 72: Mobilize Helicopter #2 Anchorage to Dutch Harbor. Aug. 4 713 - 77 Move drilling equipment (2,000' loc) Day 77: Demobilize Helicopter #2 Dutch Harbor to Anchorage. Sept. 3 78 - 107 Drilling operations (2,000' well) Days 80-85 flow test 4,000' well if required. Day 107: Mobilize Helicopter #2 Anchorage to Dutch Harbor. Sept. 10 108 - 114 Demobilize camp, drilling equipment, and test equipment to Dutch Harbor. Day 112: Demobilize Helicopter #2 Dutch Harbor to Anchorage. Day 114: Run temperature surveys both wells. Sept. 14 115 - 119 Clean up & restore both locations and campsite. Day 119: Run second temperature survey 2,000' hole 120 Demobilize Helicopter #1 Dutch Harbor to Anchorage. APPENDIX M HYDROGEN SULFIDE CONTINGENCY PLAN REPUBLIC GEOTHERMAL, INC. HYDROGEN SULFIDE CONTINGENCY PLAN (Makushin ST-1 and Temperature Gradient Hole A-1) I. INTRODUCTION It is unlikely that the proposed drilling operations on Unalaska Island will encounter significant concentrations of noxious noncondensable gases; however, Republic Geothermal, Inc. recognizes the potential for such unlikely events must be anticipated to ensure a safe working environment and to prevent endangering personnel at the drill sites. It is the intent of this Contingency Plan to identify the potential hazards of hydrogen sulfide (H5S) gas and to provide personnel at the site with an advance understanding of the characteristics of the gas so they may take appropriate actions in the improbable event of an (HS) emergency. The effectiveness of this plan is dependent upon the cooperation and effort of each person who participates in drilling the well(s). Each individual must know their responsibilities, not only under normal operating conditions, but also under emergency operating situations. Thus all Personnel should familiarize themselves with the location and operation of all safety equipment and see that their own equipment is Properly stored, easily accessible at all times, and routinely maintained. II. GENERAL INFORMATION All employees and outside contractors involved in drilling, evaluating and testing the wells will be trained in the recognition of warning signals, the use of breathing equipment, individual and group responsibilities in case of emergency rescue or first aid, and other emergency procedures. All personnel known or suspected to have perforated eardrums shall be evacuated from the working area when hydrogen sulfide is known to be present in concentrations greater than 0.035% (350 ppm). A list of emergency phone numbers of personnel and agencies to be notified in the case of an emergency will be posted near the radio equipment in the cook tent. TIL. HYDROGEN SULFIDE CHARACTERISTICS AND EXPOSURE STANDARD RE MA ERTS AND EXPOSURE STANDARD A. The following are characteristics of Hydrogen Sulfide gas: - Extremely toxic (poisonous). See Table I (Toxic Effects of Hydrogen Sulfide). - Hos is almost as toxic as hydrogen cyanide and is between 5 and 6 times as toxic as carbon monoxide. Produces irritation to eyes, throat, and respiratory tract. Heavier than air, and colorless. Specific gravity of 1.192; (pools in depressions and contained areas). Has odor of rotten eggs, in extremely low concentrations. Burns with a blue flame and produces sulphur dioxide (S0,) gas, which is very irritating to eyes and lungs. The SO, is less toxic than HoS, but can cause serious injury. HS forms an explosive mixture with air, between 5.9% and 27.2% by volume. HS is soluble in water but becomes less soluble as the water temperature increases. The sense of smell cannot be depended upon to detect HoS because: a. Sense of smell can be lost in 2 to 15 minutes of exposure to low concentrations, due to paralysis of the olfactory nerve. b. Sense of smell is lost in 60 seconds, or less, at higher concentrations. Susceptibiltiy to Hos poisoning varies according to the number of exposures by an individual. A second exposure jis more dangerous than the first, and so on. Results of Inhalation: a. Strangling may occur after a few seconds of exposure to high Hos concentrations. This produces such symptoms as panting, pallor, cramps, paralysis of the pupil, and loss of speech. This generally 1s followed by immediate loss of consciousness. b. Death may occur quickly from respiratory and cardiac (heart) paralysis. One deep sniff of high concentration can cause death. c. Coughing, eye burning and pains, throat irritation, and sleepiness come from exposure to low concentrations. B. Exposure Standard The present federal standard for occupational exposure to hydrogen sulfide is 20 ppm as a ceiling weighted concentration determined for an 8-hour day. The acceptable peak exposure concentration above the ceiling is 50 ppm for no longer than 10 minutes. IV. SAFETY EQUIPMENT AND TRAINING A. Safety Equipment: The drill site(s) will be equipped with the following equipment specifically for hydrogen sulfide safety: - Wind direction indicators (wind streamers) will be placed ina readily visible position on the drilling rig. - Hydrogen sulfide sensors will be located on the drilling rig floor. - Audible and visual alarms will be activated when H5$ concentrations exceed threshold levels. - Protective breathing apparatus (pressure-demand Scott Air Pak respirators) will be maintained on-site, both at the drilling rig and at a designated emergency briefing area. - Portable hand operated hydrogen sulfide measuring apparatus (Draeger Kit) will be maintained on the site. - Routine first aid equipment and a basket litter will be maintained on the site. Training Program: A scheduled training program for all personnel will be conducted. This program will assure that all personnel will be familiar with the location and proper use of safety equipment. They will also be informed of HoS monitors and alarms prominently located on the drill site along with the prevailing winds, briefing area, warning systems and evacuation procedures. The person in charge of the working crew will be responsible to conduct hydrogen sulfide emergency action drills. These will include job assignments in the event of an emergency; responses to H5S alarms; proper well shut-in procedures; and emergency rescue Procedures. Special attention will be given to the maintenance and use of respirators, including the sealing surface of the respirator facepiece with regard to facial hair, contact lenses, and corrective spectacles. Vv. OPERATING PROCEDURES The person in charge of the working crew will have full responsibility of safety precautions and will direct operations necessary to the safety and health of all personnel on the drill site. A. Normal Operating Conditions Prior to drilling into the first zone of Hos gas, a1] personnel will be instructed on the hazards of HoS, the location and the use of safety equipment onsite. They will also be informed of the Hos monitors, their locations and the related alarm system along with the prevailing winds and indicating equipment location, briefing area, and evacuation procedures. Subsequent to penetrating into a H5S bearing zone, a meeting will be held covering the above. Upon drilling into an H5S bearing zone the evolved gas will be monitored at the rig floor. Should HS gas be present in concentrations between 10 ppm to 20 ppm, all Personnel shall be advised. B. HS Emergency Conditions: After H5S has been detected, operations will proceed as follows: 1. Condition I = Potential Danger The hydrogen sulfide continuous monitoring equipment will register Hos concentrations but no alarm will be activated until 10 ppm H5S concentration has been reached. When Hos concentrations of 10 ppm are detected on the rig floor, a sensor will activate a visual alarm (flashing yellow light). This is a preliminary alarm only and should alert personnel that more elevated concentrations of HS May be encountered. No danger to personnel exists as long as H5S concentration remains below 20 ppm. a. General Actions: (1) Personnel will be alert for any changes in H5S concentrations. (2) All safety equipment, monitors and alarms will be checked for proper functioning. (3) Drills and review of emergency programs will be conducted. Condition II = Moderate Danger An audible alarm (siren) will be activated when H.S 2 concentration reaches 20 ppm on the rig floor. a. General Actions: (1) (2) (3) (4) All personnel on the rig and in the area of the mud pits will be advised to put on their breathing equipment. The Manager of Operations will be notified and his instructions will be followed. Steps to locate the source of HS will begin immediately. Required steps to suppress the H.S 2 will be taken. Drilling will not proceed until the source is determined, the well circulated, and the gas controlled. All nonessential personnel will be sent out of the potential danger area. (5) All gas monitoring devices will be checked and gas monitoring activities with the portable hand operated gas detector unit will be undertaken. (6) The Manager of Operations will assess the situation, outline a control program, and assign duties to each person or group as required to bring the situation under control. (7) Access to the drill site will be limited to authorized personnel only. Condition III = Extreme Danger to Life This condition is reached when one or more of the following occurs: critical well operations, well control problems, poisonous gas above threshold level (20 ppm) and in the extreme, loss of well control. a. General Actions: (1) All personnel will put on protective breathing equipment. 10 (2) (3) (4) (5) (6) (7) All personnel not required for well control or with perforated eardrums will proceed to upwind briefing area for evacuation instructions. The Manager of Operations will assess the situation, outline a control program, and assign duties to each person or group as required to bring the situation under control. The Project Manager will be notified and consulted. The Vice Presidents, Land and Production will be notified and consulted. Additional notifications will be made as identified on the Emergency Notification List prepared for the project. If there is no hope of containing the well under prevailing conditions, and there is a definite threat to human life and property: (a) Emergency Action Procedures will be initiated. 1 (b) If all else fails, the well will be ignited. Instructions for igniting the well: (4) Two people are required for the actual igniting operation. Both people will wear self-contained breathing units and will have 200 foot retrieval ropes tied around their waists. One person is responsible for lighting the well and the other will provide any immediate assistance needed. Personnel not assigned special duties will be kept within the safe briefing area. Those in the safe briefing area will be alert to the needs of the two people assigned to ignite the well. Should either of these people be overcome by fumes, they will immediately pull them to safety by the retrieval ropes. (11) The primary method for igniting the well is a 25 mm meteortype flare gun. It has a range of approximately 500 feet. If this method fails or well conditions are such that a safer or better method is apparent, then the alternate should be used. 12 (141) If the well is ignited, the burning hydrogen sulfide will be converted to sulfur dioxide which is also poisonous. Thereafter, DO NOT ASSUME THAT THE AREA IS SAFE AFTER THE GAS IS IGNITED. CONTINUE TO OBSERVE EMERGENCY PROCEDURES AND FOLLOW THE INSTRUCTIONS OF SUPERVISORS. (c) Initiate program to kill, Plug and abandon well. Emergency First Aid Procedures While extensive preparations for personnel safety have been made, al] personnel should be aware of first aid Procedures in the event of an accident. First aid for Hos victims is based primarily on moving the victim to fresh air immediately. (1) Warning - Do not jeopardize your own safety. Always wear a self-contained breathing apparatus while attempting rescue. 13 (2) (3) If victim is unconscious and not breathing, immediately move the victim to a safe breathing area and apply an approved method of artificial respiration and continue without interruption until normal breathing is restored. Symptoms may pass rapidly, but keep the victim warm and transport him/her to a hospital under the care of a physician as soon as possible. 14 % 0.001 (10 ppm - 0.002 (20 ppm) 0.01 (100 ppm) 0.025 (250 ppm) 0.035 (350 ppm) 0.045 (450 ppm) 0.09 (900 ppm) 0.10 (1000 ppm) TABLE I TOXIC EFFECTS OF HYDROGEN SULFIDE 0 to 2 Minutes Detectable by "rotten-egg" smell. Coughing, slight irritation of eyes. Loss of sense of smell. Loss of sense of smell Irritation of eyes. Loss of sense of smell. Irritation of eyes. Loss of sense of smell. Coughing, uncon- sciousness Serious respi- ratory distur- bances. Unconsciousness. 15 to 30 Minutes Detectable. Disturbed respir- ation. Pain in eyes. Sleepiness. Throat and eye irritation Irritation of eyes and respi- ratory tract. Difficult respi- rations. Irrita- tion of eyes. Respiratory dis- turbances. Eye irritation. Unconsciousness. Death. 15 30 Minutes to 1 Hour Detectable. Maximum allowable concentration for 8-hour exposure without protective mask. Throat and eye irritation. Throat and eye irritation Painful secretion of tears, weariness; may Cause death in longer . exposure Increased irritation of eyes and nasal tract. Dull headache. Serious respiratory disturbances. Serious eye irritation. Slow pulse, rapid shallow breathing. Respiratory Paralysis, convulsions, asphyxis and death. Death. APPENDIX N PERMIT APPLICATIONS FOR 1983 FIELD OPERATIONS Appendix N-1 Application for a Special Use Permit submitted to United States Fish and Wildlife Service REPUBLIC GEOTHERMAL, INC. 11623 EAST SLAUSON AVENUE. SUITE ONE SANTA FE SPRINGS, CALIFORNIA 90670 TWX - 910.386.1696 (213) 945.3661 February 24, 1983 Mr. Fred Zeillemaker Refuge Manager, Aleutian Islands. Unit U.S. Fish and Wildlife Service P.O. Box 5251 NAVASTA FPO Seattle, Washington 98791 Dear Mr. Zeillemaker: Please accept this letter and the attached exhibits as our Applica- tion for a Special Use Permit to conduct geothermal resource exploratory operations on the eastern flanks of Makushin Volcano on Unalaska Island. This Application ts for the third stage of operations under Republic's contract with the Alaska Power Authority (APA). Republic is now propos- ing to drill one small-diameter well capable of encountering and testing the geothermal resources which were tentatively identified during the 1982 exploration activities, and to drill one additional deep tempera- ture gradient hole. A detailed description of the proposed operations is attached to this letter as Exhibit A. Attached as Exhibit B is a letter from the Aleut Corporation giving their concurrence to the operations proposed under the APA contract. Attached as Exhibit C is the "1982 Environmental Baseline Data Collection Program Final Report" report prepared by Dames and Moore. We currently plan to commence the exploratory operations by June 1. Should you have any questions or concerns about this application, please do not hesitate to contact us or Republic's environmental subcontractor's representative, Mr. Steve Grabacki of Dames and Moore (800 Cordova, Anchorage, Alaska 99501; (907) 279-0673). We appreciate your consideration of this request for a Special Use Permit. Sincerely, : Tawna J. Nicholas Senior Environmental Planner TIN: wp / Attachments cc: P. DeJong, Alaska Power Authority S. Grabacki, Dames & Moore D. Hedderly-Smith, Alaska Department of Natural Resources EXHIBIT A DESCRIPTION OF OPERATIONS ALASKA POWER AUTHORITY: UNALASKA GEOTHERMAL PROJECT I. Introduction The Alaska Power Authority (APA) has contracted with Republic Geothermal, Inc. (Republic) to explore the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. Figure 1 is a vicinity map showing the location of Unalaska Island. Figure 2 is a map showing the location of the proposed exploratory operations on Unalaska Island. During the 1982 field season, Republic drilled three 1500-foot temperature gradient holes (D-1, Fox Canyon; E-l, Base Camp; and I-1l, Glacier Valley) which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic proposes to confirm the existence of the geothermal resource by drilling and testing one small- diameter geothermal resource exploration well, and to delineate the extent of the resource by drilling one additional deep temperature gradient hole (TGH). The 1982 operations were conducted under Special Use Permits AI-82-09 and AI-82-10. The 1983 operations are the subject of this permit application. II. Location of Proposed Operations The preliminary information from the 1982 temperature gradient hole operations has been integrated with the environ- mental, geological, and logistical data in order to choose the site for the small-diameter geothermal resource exploration well. The well site is to be located approximately 300 yards north of the 1982 base camp site (Figure 2). The proposed site for the 1983 temporary base camp is the same as the base camp site used during 1982 for the initial geophysical work and the temperature gradient hole operations. This camp will be used by all personnel. The temperature gradient hole is proposed to be located on the western plateau of Sugarloaf. Figure 2 shows an approximate location for the TGH, which is designated as A-1l and is commonly referred to as the Sugarloaf site. While the TGH is proposed to be located on the Sugarloaf plateau in the general vicinity of the site shown, the final location will be selected in the field based on geologic markers, logistical constraints, and water availability. Two TGH sites previously approved under Special Use Permit AI-82-10 (Alternative Sites A and B) were located on the Sugarloaf plateau, and the proposed siting area for TGH A-l is in the same general area as these two previously approved TGH sites. FIGURE 1 UNALASKA ISLAND VICINITY MAP DRIFTWOOD BAY SUMMER BAY MAKUSHIN VOLCANO A MAKUSHIN vatiey’ UNALASKA ISLAND MAKUSHIN BAY >< BASE camP © THERMAL GRADIENT HOLES s STUDY AREA SHOWN ON FIGURE 2 FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND SCALE IN FEET>S ne EE 0 [ronnie @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 = © TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) o- SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 © TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS III. Discussion of Proposed Operations The currently proposed operations will be very similar to the temperature gradient hole operations conducted during the summer field season of 1982. The small-diameter geothermal recource exploration well and the temperature gradient hole will also be drilled using a continuous wireline coring rig. However, a slightly larger rig will be necessary because the small-diameter well will be drilled to a depth of 3,000 to 4,000 feet. The main differences are that the 1983 rig has a larger engine and a heavier mast than the 1982 rig. Figure 3 is a drawing of the type of rig which will be used. The rig will be transported by barge to Unalaska Island and then transported in sections by helicopter to and from the drill sites. The temperature gradient holes drilled in 1982 were drilled to a depth of 1,500 feet. The TGH proposed to be drilled in 1983 will be drilled to a depth of approximately 2,000 feet, until additional drilling is precluded by weather, until drilling is terminated by budget limitations, or until a geothermal resource is encountered. The TGH may be drilled subsequent to the small-diameter well by the coring rig. or the TGH and the small-diameter well may be drilled con- currently with two wireline coring rigs of the same type. The latter alternative would decrease the possibility of not completing the TGH due to lack of time or bad weather. For further information regarding drilling procedures, please see Section IV. An area of approximately 30-feet by 50-feet will be leveled for each well as necessary by hand labor or the use of lumber for the rig. A series of small mud pits or steel tanks will be used to collect the rock cuttings and to store the drilling fluid before it is recirculated. The drilling opera- tions will require approximately 500 gallons of water per day which will be obtained from snowmelt or a nearby rivulet and will be stored in a small tank on location. Figure 4 is a sketch of a typical small-diameter well and TGH site. When the small-diameter well and the TGH are each com- pleted, the cuttings and waste drilling fluid (drilling mud and/or water) will either be dried and the residue spread on the surface of the ground, or buried and covered with native soil depending upon the most environmentally appropriate disposal technique for the site. The amount of waste drilling fluid is Likely to be less than 200 gallons since most of the drilling fluid generated during the drilling of both the small-diameter well and the TGH will be used to set the cement around the casing during well completion. Most of the rock cores will ultimately be sent to the Alaska Division of Geophysical and Geological Survey offices, to Republic for study, and to various agencies as samples. They will be boxed and transported from the site by helicopter. FIGURE 3 VERTICAL MAST CONTINUOUS WIRELINE CORING RIG rm) wi =) a. = tf “ tu iva 9 oO DRILLING RIG 10’X 15’ MUD PIT OR TANK 5'X10° FIGURE 4 TYPICAL SITE PLAN (LAYOUT BASED ON AN AREA OF APPROXIMATELY 30'X50’) 300 GALLON EQUIPMENT TENT WATER TANK 12'X20' (100‘t) HELICOPTER LANDING AREA SLEEPING TENT 12'X20° BGI m2z0 Drilling operations for the small-diameter well should take approximately sixty-five days, and operations for the TGH should take approximately thirty days. Drilling will continue 24 hours per day and will require two or three three- -person drilling crews, one contract drilling foreman, a site Operations supervisor, a camp cook, and periodically one or two geologists, engineers, technicians or environmental scientists. Food and fuel will be purchased at Dutch Harbor to the greatest extent possible. The drill crews, camp cook, geologists, engineers, and environmental scientists will be housed at the temporary base camp. The helicopter and the pilot will be based at the camp. The helicopter mechanic will be quartered in Dutch Harbor, where various additional support personnel will be staying for short periods of time during the operations. The portable camp will consist of approximately four to six 12-foot by 20-foot sleeper tents, one 15-foot by 30-foot cook tent, one 15-foot by 30-foot shower and laundry tent, and a portable outhouse. Two 12-foot by 20-foot sleeper/storage tents (or equivalent) will also be placed at the TGH site for use in bad weather. Garbage from the camp will be transported back to proper waste disposal facilities in Dutch Harbor, or will be treated and buried on site. Grey waste water will be disposed through an onsite pit or a leach line built by the . camp construction company. Black waste water may go through a leach line system, may be placed in a pit and treated with lime, or may be dried and burned. A permit for waste disposal was obtained from the Alaska State Department of Environmental Conservation for the 1982 operations and is currently being renewed for the 1983 operations. The drilling crew will be transported between the camp, the TGH site, and Dutch Harbor by helicopter. The crew will be helicoptered to the TGH site, but will likely walk from the camp to the site of the small-diameter resource exploratory well. Helicopter operations will be conducted away from the coastal areas and thus will not occur near seabird rookeries. The helicopter pilot will be instructed to avoid any other wildlife in order to minimize the adverse effect from the helicopter noise and movement upon the wildlife resources in the area. : Based on the available geologic data, encountering a geo- thermal resource during drilling of the small-diameter well is anticipated but not certain. All standard procedures for drilling, casing, cementation, and blowout prevention will be followed during the proposed drilling operations. If a resource is encountered, the flow of the resource will be con- trolled by adherence to standard procedures and safe drilling practices. Please see Section V for the emergency contingency Plan. Drilling of the well will cease once sufficient geo- thermal resource is encountered. To establish the quality and extent of the geothermal resource, Republic must flow-test the well (and the temperature gradient hole, should it encounter a resource). Flow-testing the well (and the temperature gradient hole) will require the temporary discharge of geothermal fluids into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data col- lected during the 1982 exploration activities gives Republic the ability to estimate the chemical and physical characteris- tics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the pro- posed geothermal fluid discharge can be conducted in a manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic, and/or its subcon- tractor, will also undertake monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. Approval of a Short-Term Water Quality Variance for the flow-test discharge to the Makushin Valley river is being requested from the Alaska Department of Environmental Conservation simultaneously with the request for approval of this application. The variance request will also be reviewed by the Alaska Department of Fish and Game. The variance request is attached to this application as Attachment I to . Exhibit A. Please refer to this Attachment for details of the following: flow-test purpose, flow-test design, discharge characteristics, receiving water characteristics, potential impacts, and proposed monitoring and mitigation measures. Upon completion of drilling and testing of the small- diameter well, a 6-inch valve will be used to secure the well. A decision about plugging and abandonment of the well cannot be made until the resource, if any, has been tested. If a geothermal resource has been encountered in the tem- perature gradient hole, then actions would be similar to those taken for the small-diameter well. Both sites will be cleaned up and will be returned as near as feasible to pre-drilling conditions. IV. Drilling Programs A. Small-Diameter Geothermal Resource Exploration Well l. Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter F-25 or J-55, 11.5 lb. casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.O.P., flow tee, and a rotating stripper head. Drill out cement using HQ (3.782") wireline cor- ing tools with mud or water as the circulating medium. Drill ahead to approximately 1,000 ft. Cement HQ (3 1/2") drill rod with casing shoe bit in hole at approximately 1,000 ft. Change over to NQ size (2.980") wireline coring tools. Core ahead until encountering reservoir or 3,000 ft. If production is encountered, run short flow test to obtain fluid sample and tem- peratures. If no reservoir is encountered, changeover to BQ (2.360") coring tools and core to approximately 4,000 ft. T.D. After reaching T.D. at the reservoir, 4,000 ft., or the rig capability limit, conduct short flow test for collection of water sample for analysis to preceed longer flow test. While sample analysis is being conducted, rig down drilling equipment. Rig up flow line and wellhead for flow test. Assuming analysis of fluid sample collected in steps 4 or 5 permits, a more extensive flow test will be conducted. Note: Figure 5 is attached for a schematic dia- gram of the proposed casing program. FIGURE 5 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 4,000 FT. SMALL—DIAMETER GEOTHERMAL RESOURCE EXPLORATION WELL SURFACE Ws 8 1/2” HOLE 5” CASING TO 150 FT. 150 FT. HQ (3.78") HOLE 1,000 FT.——— & HQ ROD CASING (3 1/2”) CEMENTED TO 1,000 + FT. NQ (2.98’") HOLE 3,000 + FT. COMPLETED OPEN HOLE BQ (2.36) HOLE 4,000 + FT. FGI 0149 OR RIG CAPABILITY -1l0- B. Temperature Gradient Hole l. Notes: Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter F-25 or J-55, 11.5 lb., threaded and coupled casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.O.P., and a stripper head. Drill out cement using a 4-1/4-inch rotary bit with mud or water as the circulating mediun. Drill ahead as far as possible or until lost circulation or hole problems force changeover to NQ size (2.980-inch diameter) wireline coring tools. After changeover, continue to core NQ or smaller size hole to total depth of approxi- mately 2,000 feet. Run 1 1/2-inch steel tubing to T.D. (approximately 2,000 feet). Clabber mud with cement and circulate to fill the annulus. Fill the tubing with clean water and cap. Cement top 20 feet of annular space. Remove BOPE's, rig down, and move out drilling equipment. Cap tubing with threaded cap. Approximately seven to ten days after drilling operations are completed, a temperature profile will be run on the well. a) Although encountering a resource is not expected while drilling to this depth, the following is a contingency plan in the event a potentially producible resource is encountered: 1) Before running 1 1/2-inch tubing, attempt Limited flow test to mud tanks to clean the well and to acquire fluid samples for chemical analyses. Excess fluid may be returned to the TGH after sampling. 2) After the test, run 1 1/2-inch tubing. Cement tubing from surface to T.D. Displace cement with water using latch-down wiper plug. 3) Remove BOPE's, rig down, and move out. Cap tubing with threaded cap. b) Figure 6 is attached for a schematic dia- gram of the proposed casing program. c) To abandon the temperature gradient hole, cut the tubing and casing below ground level, plug the top 15 feet of the tubing with cement, and cover the hole with soil. V. Emergency Action Procedures and Notification List If any emergency develops or is determined to be impend- ing, appropriate control procedures will be initiated. The specific procedures will vary greatly depending on the nature of the problem. Examples of possible emergencies are: a well control problem (well blowing steam, hot water or other well effluent with loss of means to shut-in or divert the flow); a spill of geothermal fluid; fire; accidents or injuries; etc. Regular communications will be maintained between the remote work site and the contracted helicopter service base facility on Unalaska. The work site will be equipped with a short wave radio and a sufficient number of signal repeaters will be installed to ensure capability of contacting emergency response authorities. Daily reports of activity at the work site will be required, and if such report is not received or communications are not available, authorities will be put on alert for possible problems. A. Injury Accidents First aid supplies will be available at the work site and will include equipment for emergency treatment of traumatic injuries and a Stokes Splint Stretcher or comparable basket-type litter suitable for air-lifting. Injured workers will be air-evacuated by helicopter to the nearest medical aid facility: Illiuliuk Family and Health Services, Inc. Box 144 Unalaska, Alaska 99685 (907) 581-1202 FIGURE 6 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 2,000 FT. TEMPERATURE GRADIENT HOLE SCREW CAP SURFACE | CEMENT TOP 20FT. OF ANNULAR SPACE 8 1/2" HOLE 5" CASING TO 150 FT. 150 FT. —_— 1/2” GALVANIZED PIPE — 1/2” AND/ OR NQ (2.98”) HOLE o@———- CLABBERED MUD IN HOLE TO T.D bi SCREW CAP 2,000 FT, FGI O147 The helicopter will be stationed at camp or the Dutch Harbor Airport during operations. If the helicopter is disabled for any reason, then the Unalaska Police would be contacted for assistance: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 In the event that a seriously injured worker could not be timely air-evacuated because of inclement weather or mechanical problems, an attempt would be made to trans- Port the injured worker by litter to an accessible area for air or water transport to the regional medical aid facility. Injured workers requiring treatment unavailable at the medical aid facility will be air-transported by com- Mercial air carriers to a full-service hospital in Anchorage, Alaska. Commercial air carriers with regularly scheduled flights from Unalaska to Anchorage include: Reeve Aleutian Airlines Dutch Harbor Airport (907) 581-1380 Air Pac Airlines Dutch Harbor Airport (907) 581-1531 B. Fire Fire extinguishers will be Provided at the site. Any uncontrolled fire will be reported to the local Fire Department: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 C. Security In the event of any disturbance or threat, local police authorities would be notified as soon as possible: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 D. Well Control All prescribed safety practices and procedures will be followed. All members of the drilling crew will per- form duties assigned for the specific purpose, following specified safety practices. Field supervisory personnel will contact the Manager, Operations and consult with him as to any further or supplemental steps which may be necessary or advisable with regard to control of the well: Mr. Richard E. Yarter, P.E. Manager, Operations Republic Geothermal, Inc. 11823 East Slauson Avenue Santa Fe Springs, CA 90607 (213) 945-3661 E. Emergency Notifications In the event of any emergency, the Operations Supervisor at the site will notify the Manager, Operations “as soon as possible. The Manager, Operations will: 1. Brief his immediate supervisor (Vice President, Production) and the Project Manager (Manager, Exploration) of the situation and course of action underway: Mr. Don A. Campbell Vice President, Production Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 Mr. Gerald W. Huttrer Project Manager Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 2. The Project Manger will advise and consult the Vice President, Land, or the Manager, Environmental Affairs, as soon as practicable: Mr. Timothy M. Evans Vice President, Land Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 Dr. Dwight L. Carey Manager, Environmental Affairs Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 3. If an employee is injured while on the job, the Project Manager will also notify the corporate safety office as soon as practicable: Dr. Terry R. Thomas Safety Administrator Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 4. The Vice President, Land, or Republic's environmental and safety personnel will notify as soon as possible the following regulatory agencies, as necessary: U.S. Fish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 (907) 592-2406 Mr. Fred Zeillemaker Alaska Department of Natural Resources 555 Cordova Street Pouch 7-005 Anchorage, Alaska 99510 (907) 276-2653 Mr. David Hedderly-Smith Alaska Department of Environmental Conservation 437 E. Street, Second Floor Anchorage, Alaska 99501 (907) 274-2533 Mr. Carl Harmon Mr. Robert Flint Alaska Department of Fish and Game 333 Raspberry Road Anchorage, Alaska 99502 (907) 344-0541 Mr. Denby Lloyd Mr. Kim Sundberg -16- ATTACHMENT I TO EXHIBIT A REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 February 24, 1983 Mr. Robert C. Flint Alaska Department of Environmental Conservation Region C 437 "E" Street, Suite 200 Anchorage, Alaska 99501 Dear Mr. Flint: Republic Geothermal, Inc. requests approval of a Short-Term Water Quality Variance to allow the short-term disposal of limited quantities of geothermal fluids into tributaries of the Makushin Valley river on Unalaska Island. Republic, under contract to the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. During the summer of 1983, Republic is planning to drill at least one well capable of encountering and testing the geothermal resources which were tentatively identified during the 1982 exploration activities. Testing of the geothermal resource will require flowing the well(s) and disposal of the produced fluid into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data collected during the 1982 exploration activities gives us the ability to estimate the chemical and physical characteristics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the Proposed discharge can be conducted in a manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic will also undertake monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. REPUBLIC GEOTHERMAL, INC. Mr. Robert C. Flint February 24, 1983 Page Two Attached is a more complete statement of this request for a Short-Term Water Quality Variance for the geothermal well flow test. Should you have any questions regarding this request, do not hesitate to contact us or Republic's environmental subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Dwig L. Carey Manager, Environmental Affairs DLC:c¢l3 Attachment cc: P. DeJong, APA S. Grabacki, Dem R. Mochnick, EPA (w/cover letter) K. Sundberg, ADFG (w/cover letter) REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1983 I. Applicant Republic Geothermal, Inc. 11823 E. Slauson Avenue, Suite One Santa Fe Springs, California 90670 (213) 945-3661 for Alaska Power Authority 334 West Fifth Avenue Anchorage, Alaska 99501 (907) 277-7641 II. Introduction Republic Geothermal, Inc., under a two-year contract with the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources (Figure 1). During the 1982 field season Republic drilled three 1,500-foot temperature gradient holes which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic Proposes to confirm the existence of the geothermal resource I by drilling and testing one small-diameter geothermal resource exploration well to a depth of 3,000 to 4,000 feet, and, if time and budget permit, to delineate the extent of the resource by drilling one additional temperature gradient hole to a depth of 2,000 feet (Figure 2). To establish the quality and extent of the geothermal resource, Republic must flow-test the small-diameter well, which will require the temporary discharge of geothermal fluids into tributaries of the Makushin Valley river. Because of its depth, the temperature gradient hole may also encounter a geothermal resource. [In this event, Republic also desires to flow-test the temperature gradient hole. : III. Purpose of Proposed Discharge Flow-testing a geothermal resource well is necessary so that quantitative data regarding the well's Productivity Index (PI) and flow rate, the reservoir's transmissivity, and the physical and chemical parameters of the reservoir fluid itself Can be optained. Without this data, no realistic assessment can be made of a geothermal reservoir's viability as an energy producer. This assessment of the Makushin reservoir is the primary objective of the two-year contract with the Alaska Power Authority. FIGURE 1 UNALASKA ISLAND VICINITY MAP DRIFTWOOD BAY SUMMER BAY MAKUSIUIN vorcano AA . vanev UNALASKA ISLAND MAKUSHIN MAKUSHIN BAY >« BASE CAMP NN © THERMAL GRADIENT HOLES * = STUDY AREA SHOWN ON FIGURE 2 FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND — E LOC. A SCALE IN FEET S : —, 0 7,000— 2,000 } \ = | LIne WZ @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 © TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) oo SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 (© TEMPORARY BASE CAMPSITE O AERIAL PHOTOGRAPH INDICATORS Geothermal waters produced from well flow tests can be either: 1) returned to the reservoir by injecting into another well drilled or converted for that purpose; 2) discharged into surface storage basins and allowed to evaporate or injected back into the Production well; or 3) discharged onto the surface and, in a controlled Manner, allowed to enter the groundwater or surface water systems. For the Makushin Geothermal Project, no other well has been or will be drilled which would be available for injection of waste geothermal fluids. The previously drilled temperature gradient holes cannot be used for injection without a very expensive and ‘time-consuming conversion Operation. Basins of a size sufficient to store the produced geothermal fluids would be quite large (20,000 cubic feet), and since no powered earth-moving machinery will be available at the site, almost impossible to construct. Construction of large storage basins would also potentially create significant environmental impacts. In addition, the nearly continuous rainfall at the site makes evaporation of the produced fluids from storage basins highly unlikely. Although fluid stored in the basins could be filtered and injected back into the Production well, this process would be both costly and involve risks to the continued Productivity of the well. Thus, the most reasonadle technique available for disposal of these waste geothermal fluids appears to be a controlled discharge of the liquids into tributaries of the Makushin Valley civer, as long as it can be demonstrated that this does not create significant environmental impacts. IV. Well Flow Test Desian 55 2-0W test Design The geothermal well and temperature gradient hole will both be relatively small diameter, relatively shallow holes Grilled by a continuous wireline coring rig only slightly larger than that used to drill the temperature gradient holes during 1982. The geothermal well is designed to be drilled to @ maximum depth of approximately 4,000 feet and have a bottom-hole diameter of approximately 2-1/2 inches (surface casing diameter of approximately 5 inches). The temperature gradient hole will be drilled to a aepth of approximately 2,000 feet, until a geothermal resource is encountered, or until drilling is terminated Sy budget or weather limitations, whichever occurs first. Drilling of the well will cease once sufficient geothermal resource is encountered. The well (or temperature gradient hole, should a resource be encountered) will then be flowed directly into the smali drilling mud pit (about 100 cubic feet) for a very short period of time (about an hour) to clean drilling muds, drilling fluids, formation cuttings, and other materials from the wellbore and Procucing formation. A sample of these fluids will likely be taken for analysis in Anchorage. The drilling rig will then be removed and the equipment for the flow test constructed and installed, a process that may take from four to seven days. The well flow test will consist of flowing the fluid through a small-diameter (two- to four-inch) pipe with sized nozzles on the end so that sonic flow is established. Pressure and temperature will be monitored downhole and pressure will be monitored at the nozzle. The flow rate can then be calculated. Alternatively, the fluid May be flowed into a small surge tank, and the flow rate Measured directly by a weir gate. Fluid samples will be taken for analysis at various intervals. The well will be flowed at approximately one-half maximum rate until the flow rate stabilizes, and then stepped-up to full flow, again until the flow rate stabilizes. The actual discharge points, relative to the tributaries of the Makushin Valley river, have not yet been determined. The points and methods of discharge to the river must be selected in the field, based upon proximity to the well or hole, terrain, and ability to eliminate as much as possible the creation of sediment and temperature impacts to the river. V. Discharge Characteristics eit racteristics . Discharge will most likely occur about mid-August, 1983 for the exploration well and, should it Prove necessary, either early-August or late-September for the temperature gradient hole (depending on whether the wells are drilled concurrently or consecutively). The Gischarge dates are entirely dependent upon the completion of the well (hole), which is, in turn, aependent upon drilling rates, difficulties during drilling, and weather. Therefore, the discharge dates May easily vary either way by two or three weeks, although the weather will probably Prohibit any operations beyond approximately September 30. The well flow test will require flowing the well for approximately 4 days at an expected maximum flow rate of approximately 20,000 pounds per hour (0.09 cubic feet per second). These values may vary by as much as a factor of two, depending on the productivity of the resource, the time required for flow rates to stabilize, and other factors, all of which will only be known after the well is drilled ane completed. Based upon data develoved during the 1982 field exploration operations, the geothermal reservoir is expected to produce a resource with a temperature of about 250°C and a total dissolved solids content of about 10,000 millisrams per liter. The temperature May vary by 50°C in either Girection, and the solids content May vary, larger or smaller, by 5,000 milligrams per liter. Republic has estimated the possible chemical characteristics of the geothermal fluids by assuming a Similarity to the geothermal fluids Produced from the only comparable (granitic) geothermal reservoir, that of Roosevelt Hot Springs, Utah. These estimates of Makushin Volcano geothermal reservoir chemical characteristics are presented in Table I. However, it must be emphasized that these values are only the result of extrapolations from a totally separate reservoir, and are not the result of actual measurements of the Makushin geothermal resource. Waste geothermal fluid actually discharged into the river will have a lower temperature and volume and a higher salinity than the geothermal fluid in the reservoir. Temperature of the fluid at the surface (wellhead temperature) will be decreased by the flashing of Part of the pressurized liquid into steam. Additional flashing of the liquid down to atmospheric pressure at the surface will drop the temperature to about 100°C, and discharge to the river will be handled in such a way (temporary ponding, spraying, etc.) so that the fluid is as close to ambient water/air temperature as possible. Flashing of the geothermal fluid to atmospheric pressure will also produce steam which will decrease the volume of liquid by about 30 percent (at 250°C). This will result in an actual rate of Gischarge to the river of approximately 0.06 cubic feet per second. The Salinity of the aischarged fluid will be increased by an equivalent amount (to approximately 14,300 milligrams per liter, assuming a reservoir Salinity of 10,000 milligrams per liter). Discharge to the river will be handled in such a way (energy dissipaters, Piping, etc.) so that sediment input to the river is minimized. VI. Receiving Water Characteristics i iw racteristics During the 1982 field exploration operations, Republic's subcontractor, Dames and Moore, undertook an extensive program of baseline environmental Gata collection in and around the Makushin Valley river basin. Their final report is attached as Appendix I, and data pertaining to water guality and fishery resources of Makushin Valley river are summarized below. , spring and two Primary and two secondary stations in the fall (Figure 3). Field parameters (flow, dissolved oxygen, pH, conductivity, temperature, alkalinity, turbidity, and settleable solids) were measured at both primary and secondary stations, and an extensive list of metals and other components were analyzed in the laboratory from samples taken at the Primary stations. REQUEST FOR SHORT-TERM wATER QUALITY VARIANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1983 TABLE [ ASSUMED MAKUSHIN GEOTHERMAL RESOURCE CHARACTERISTICS (in Milligrams 2er Liter) Roosevelt Hot Sorinas Makushin Yoicano Comoonent Reservoir? Reservoir? Discharges ——=_-_-- ———— emi Discharge” TOS 7,067 10,000 14,286 Si02 260 368 525 Fe . 5 vi 10 Ca 8 nN 16 Mg 0.27 0.38 0.85 Na 2,437 3,448 4,926 K 44g 634 906 HCO3 180 2s5 364 C03 0 0 0 S0g 33 83 119 1 3,500 4,953 7,075 F 3 ? 10 i 20 28 40 Sr 1.4 2.0 2.3 Cr < 0.1 < 0.14 < 0.2 ér <5 <7 < 10 Hg 0.0015 0.0021 0.9030 ~ As 3.7 5.2 7.5 NHg 0.7 1.0 1.4 3 2s 35 31 3a 0.46 0.65 0.93 Al 0.81 1.15 1.3a Mn < 0.2 < 0.3 < 0.4 cu < 0.2 < 0.3 < 0.4 Pb < 0.2 <0.3 < 0.4 Zn < 0.2 < 0.3 < 0.4 Be 0.004 0.006 9.008 Ce < 0.2 < 0.3 < 0.4 Rb 3.9 5.5 7.9 Cd < 0.02 < 0.03 < 0.04 Ag < 0.04 < 0.06 < 0.08 So < 0.4 < 9.6 < 0.3 Ti < 0.¢ < 0.5 < 0.3 v < 0.8 <1.1 < 1.6 Ca < 0.02 < 0.03 < 0.04 Ni < 0.1 < 0.14 < 0.2 Mo < 0.2 < 0.2 < 0.4 Au < 0.04 < 0.06 < 9.08 3i < 1.2 < 1.7 < 2.2 U < 1.2 <7 < 2.4 Te < 0.6 < 9.38 < 1.2 Sn < 0.14 < 0.20 < 0.28 4 < 0.12 < 0.17 < 0.24 or < 0.04 < 0.06 < 9.08 va < 0.04 < 0.06 < 0.08 Th < 0.7 < 1.0 <td on 6.5 5.5 8.5 2 Feom Samfore, 2. W., at al, 1980, Multieiement Geocnemistry of Solia Matertais in Geothermal Systams and its Aoolications 2art 1: Tne Sotewater System at the 2ocsevelt rot Sorings <GRA, Utan. iartn Science Laporatcry, University of Utan 2esearsn institute. u caiculates sy multipiying tne Woosevelt comocnent soncantration sy she assumec Makusnin TDS ana siviaing sy the oosevel: “3S. Taleuiatas 2y divicing tne calculates “axusnin 2eservoir comconert ssnesntration sy 2.7. o FIGURE 3 MAKUSHIN VALLEY RIVER SAMPLE STATION LOCATIONS & Primary Sampie Station 4 Secondary Sampie Station @ Temperature Gradient Hoie Completed in 1983 © Tempory Base Campsite © Temperature Gradient Hole Proposed for 1983 >> Smail Diameter Geothermal Resource Exploratory Weil Proposed for 1983 DRIFTWOOD BAY S hy UNALASKA ISLAND GLACIER VALLEY Tis fl 0 5 MILES —S—— 5 KILOMETERS Adapted from Dames & Moore 1982 Environmentai Baseline Program Data Coilection Finai Report. In general, water quality at the Primary sample stations was pristine. Discharge was low in the spring and relatively high in the fall. Correspondingly, mineralization decreased from spring to fall, and turbidity and suspended solids increased over the same period. Because the discharge of geothermal fluids will take place during the fall, the fall values will be of primary importance. Fall data from Station MV, located downstream of the expected discharge points (and upstream of the highest known salmon spawning), are presented in Tables II, III and Iv. Fish sampling was also undertaken at both Primary sampling stations in spring and fall. Adult and juvenile Dolly Varden char (Salvelinus malma) were Captured at both Primary sampling stations. No other species of fish were captured, but numerous observations of pink salmon (Oncorhynchus gorbuscha) were made throughout the lower reaches or the river. Because of their known sensitivity and commercial value, the pink salmon are the aquatic species of greatest concern. No pink salmon were observed above one mile downstream of Station MV, although all fish Passage barriers were located well above this Station. Thus, Station MV is considered to be the point at which to judge the effects of VII. Potential Impacts socentiat Impacts By combining the geothermal fluid e@ischarge and the fall values measured at Station MV, an estimate of the expected impacts to Makushin Valley river water quality can be made. These estimated values are presented in Tables II, III and IV. Because the discharge is anticipated to be less than two-hundredths of one percent of the river flow, the change in the river water quality will be undetectable for most constituents, and certainly negligible for those that can be measured. And, for this reason, the impacts to Makushin Valley river fishery resources will be negligible. VIII. Proposed Monitoring and Mitigation Measures The above analysis suggests that expected impacts resulting from the discharge of geothermal fluid into Makushin Valley river will be negligible. However, this analysis is based upon a number of assumptions, including reservoir and well production characteristics, dates of discharge, and fish spawning status, which may well be altered by data obtained at the time of discharge. Accordingly, Republic proposes to undertake certain monitoring and mitigation measures to ensure that impacts are negligible. Republic will have the fall pink salmon spawning run monitored, in cooperation with the Alaska Department of Fish ana Game, from its beginning to approximately establish the REQUEST EGR SHOT TOU HATO QUAL LEY VARTANCE UNAUASKA GEOTHERIAL ORITCING PROIECT TAM 1 ISHIMATED CONCENTRATIONS OF CONTAMINANTS (GENERAL) IN HAKUSHIN VALLEY REVER AL MV STATION DURING GEOTHERMAL WHEE TCSEING AND DISCHARGE Measured (at imated ituent MV (Sept. 02) HW + Test (Sept, 05) Criterion; Source!) Comment. flow (cfs) 270 270.09 -- 0.03% increase DO (ppm) Cs sat.) 12.6 (99) -- 5.0 minim; EPA 76 No eignificant reduction expect ed Conductivity Coubos/em @ 25°C) u2 -- -- -- pu 6.1 6.1 6.5-9.0; FRA 16 No significant change from aabient ; : existing is below al andard lomperature (°C) 4.0 4.9 20 (2)5 EPA 76 No significant increase expected lurbidity (NIU) iB) -- (K10% reduction in -- photosynthetic compen- sation point; EPA 76) Seltleable Solids (mi/t) <o.t -- (410% reduction in -- photosynthetic compen- sation points; EPA 76) Alkalinity (as Cal0y, ppm) 5.4 7.2 20; UPA 16 -- Hardness (Comtg, as Cals) wo -- -- -- free CO (ppm) 0.5 -- 110% saturation; EPA 76 -- 155 -Cppm) 26 -- Same an turbidity -- 1S (ppm) 52 56.7 2505 EVA 76 -- Nils - N (ppm) <o.at uot 160; EPA 76 No significant change expected fotal Kjeldabt - N (ppm) 0.52 0.52 (10 of NOs); ADEE No significant: change expect ed fotal Phosphate (ppm) u.ao 0.00 (0.01 elemental); (PA 76 -- Or thophosphate (ppm) 0.04 0.04 (0.01 elemental); CPA 76 -- Tira Wo = Age: 1976 Qualit Criteria for Water ("the Red Nook") CPA 00 = U.S. Fovirommental Protection Agency 1900 Aub Ten Nater Quality Criteria AWE = Alaska Department of taviromnental Conservation Wal fily St 3 (1979) and/or Drinking Water Regulations (4902) U.S. Coavironmental Protect i REQUEST COR SHON TERE WATER QUALLTY VALANCE © UNATASRA CEO TIE RHAL BAITING PROTECT GeO T a ws tae Uh ESTIMATED CONCENTRATIONS OF CONTAHINANIS CCALLONS) IN HAKUSHTIN VALLEY IIVER AL HV STATION DUILING GEOTIERHAL LEE TESTING AND DISCHARGE Cation (Sept, 02) (ppm) _ (Sept. 03) (ppm) Source (pp) (1) Comavat Alumina v.45 1.43 -- No significant change expect ed Aut imony -- <O.4 9; CPA 00 Helow standard Ar (2) 0.0016 0.004 0.05; ADLE Below standard Waeronl2) = = 1; ADL Helow standard Neryt tial 2) <O.004 0.001 0.13; EPA OO No significant Increase expect ed Wismath -- <1.2 -- No significant increase expected Horon <o.0 0.12 0.75; CPA 76 elow ulandard Cactn ian 2) <o.002 0.002 0.010; ADLE No significant increase expoct ed Cateiun 6.3 6.3 -- No significant increase expect ed unl 2) Ot o.08 - No significant increase expect ed wn ten 2) -- <O.n “= No significant increase expect ed Coban (2) <0.007 0.007 -- No significant increase expect ed Copper ’2) 0.010 oot 4.4-5.6; CPA 00 slow slanlard tron 1.632 1.635 1.0; CPA 16 Move standards 0.2% over exist ing Gormanioml2) Od O.1 -- No significant increase expected Cold -- <0.04 -- No significant increase expect ed fantail?) <O.0t <O.01 -- No significant increase expect ed tead(2) <o.0008 0.0001 0.05; ADEC Nelow standard Cithion -- -- -- No significant increase expected Magnes iu 2.0 2.0 -- No significant increase expect ed Hanganeso 0.021 0.021 0.05-0.10; EPA 76 Oolow standard Hecour y(2) <.0002 0.0002 0.002; ADC fellow standard Hol yates 2) <O.02 0.02 -- No significant increase expected Nicket (2) 0.021 0.021 0.026-0.05; EPA 00 Nelow standard; existing is wear standard Potans ium 0.055 0.56 -- 0.1% of seawater enteral ion feds idinwnl2) -- -- -- No significant increane expect ed Setentoml2) <0..0005 -- 0.01; ADLE Ho significant: Increase expect od Silver (2) <2 0.002 0.05; ADEE Halow standard Sodium 4.0 6.5 250 (an salt); ADC felow atamlard; 0.06% of seawater concentration Strout iuml2) -- -- -- No significant: increase expect ed feltur ian -- <0.6 -- No significant: increase expected thorium -- <7 -- No significant: Increase expect od Vin -- <0.14 -- No siquificant: increase ed Vitanion(2) <0.04 0.04 -- No significant: increase expect ed fungaten -- <O.02 -- No significant: increase expocted Uranicun -- <V.2 -- No significant pase expected Vanvaet ica! 2) -- ou -- No significant: increase expected Zine l2) O09 O09 0.047-0,077; EPA HO Qelow standard Measured HV Gatimated WV + Tent Criterion; REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1983 TABLE IV ESTIMATED CONCENTRATIONS OF CONTAMINANTS (ANIONS AND NEUTRAL) IN MAKUSHHIN VALLEY RIVER AT MV STATION DURING GEOTHERMAL WELL TESTING AND DISCHARGE Anion/Neut ral Measured MY Estimated MV + Test Criterion; Constituent (Sept. 82) (ppm) (Sept. 83) (ppm) Source (ppm) (1) Comment _ _ Bromide <0.20 0.2 -- No significant increase expected Chloride 2.4 4.8 2.4; ADEC Above standard; 0.03% seawater concentrat ion Fluoride 0.08 0.06 -- No significant increase expected lotal Silica 22.0 -- -- No significant increase expected Dissolved Silica 16.0 16.2 -- No significant increase expected Sul fale 21.7 21.7 -- No significant increase expected Sul Fide <0.10 -- 0.002; EPA 76 Existing is above standard; no significant increase expected (Oepa 76 U.S, Environmental Protect ion Agency 1976 Quality Criteria for Water ("the Red Book") wou EPA 80 = U.S. Environmental Protection Agency 1980 Ambient. Water Quali riteria ADEC = Alaska Department of Environmental Conservation Water Quality Standards (1979) and/or Drinking Water Regulations (1962) size of the run and the upstream limit prior to, during, and ~following discharge. Makushin Valley river water quality and flow rates will also be measured prior to, during, and following discharge at Station MV, Station BC, and a new station immediately downstream from the Gischarge point. Conductivity or chloride measurements will likely be used as the prime index of water quality in the field; however, we do anticipate collecting a relatively complete chemical sample from Station MV both Prior to and during the test. Republic may be able to collect and have analyzed a sample of geothermal fluid obtained during the initial cleanout flow. This May give us an idea of the actual geothermal fluid constituents immediately prior to actual discharge. Establishing Makushin Valley river water quality exposure to water quality changes. St Pau EXHIBIT B elie Netson Lagoon The Rleut Corporation a : 2550 Denali »* Suite 900 * Anchorage, Alaska 99503 ee 2. Phone (907)-274-1506 wnaias: so S » ee oe jE SFikotski ang Cove & Sana — March 4, 1982 Mr. Gerald W. Huttrer BECEIVED Republic Geothermal, Inc. 11823 East Slauson Avenue Mau G & 1982 Santa Fe Springs, California 90670 Dear Mr. Huttrer: The Aleut Corporation is a regional corporation organized under the Alaska Native Claims Settlement Act (ANCSA) of 1971. The Aleut Corporation has selected the surface and subsurface rights to the following townships, on Unalaska Island, as part of its entitlement under section 14 (h)(8) ANCSA: d Township 71 South, Ranges 118 and 119 West of the Seward Meridian Township 72 South, Ranges 118 and 119 West of the Seward Meridian Township 73 South, Ranges 119 and 120 West of the Seward Meridian The corporation has no objection to the geothermal exploration activities on these lands, as proposed by the Alaska Power Authority and conducted by Republic Geothermal, Inc. of Santa Fe Springs, California; Dames & Moore of Anchorage, Alaska; and their associated subcontractors. However, we assume that Republic Geothermal will obtain all the necessary permits for the exploration activities and will follow appropriate engineering and environmental protection practices in their exploration. Furthermore , we expect that the exploration will be conducted with respect for the aesthetic and environmental qualities of the area: this specifically includes the maintenance of clean camps and the proper disposal of solid and liquid wastes. Sincerely , me MLEUT 60 RATION LU Jou— Leuns Wayne F.| Lewis Land Director WEL/jh NOTE TO READER OF PHASE IB REPORT: Exhibit C attached to this application is the "1982 Environmental Baseline Data Collection Program Report" prepared by Dames and Moore. This document is reproduced in its entirety as Appendix A of the Phase IB Report, so it is not reproduced again in this Appendix. Appendix N-2 Short-Term Water Quality Variance Request submitted to Alaska Department of Environmental Conservation REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 February 24, 1983 Mr. Robert C. Flint Alaska Department of Environmental Conservation Region C 437 "E" Street, Suite 200 Anchorage, Alaska 99501 Dear Mr. Flint: Republic Geothermal, Inc. requests approval of a Short-Term Water Quality Variance to allow the short-term disposal of limited quantities of geothermal fluids into tributaries of the Makushin Valley river on Unalaska Island. Republic, under contract to the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. During the summer of 1983, Republic is planning to drill at least one well capable of encountering and testing the geothermal resources which were tentatively identified during the 1982 exploration activities. Testing of the geothermal resource will require flowing the well(s) and disposal of the produced fluid into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data collected during the . 1982 exploration activities gives us the ability to estimate the chemical and physical characteristics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the proposed discharge can be conducted in a manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic will also undertake monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. REPUBLIC GEOTHERMAL, INC. Mr. Robert C. Flint February 24, 1983 Page Two Attached is a more complete statement of this request for a Short-Term Water Quality Variance for the geothermal well flow test. Should you have any questions regarding this request, do not hesitate to contact us or Republic's environmental subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Dwig. L. Carey Manager, Environmental Affairs DLC:clj Attachment cc: P. DeJong, APA S. Grabacki, D&M R. Mochnick, EPA (w/cover letter) K. Sundberg, ADFG (w/cover letter) REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1983 I. Applicant Republic Geothermal, Inc. 11823 E. Slauson Avenue, Suite One Santa Fe Springs, California 90670 (213) 945-3661 for Alaska Power Authority 334 West Fifth Avenue Anchorage, Alaska 99501 (907) 277-7641 II. Introduction Republic Geothermal, Inc., under a two-year contract with the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources (Figure 1). During the 1982 field season Republic drilled three 1,500-foot temperature gradient holes which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic Proposes to confirm the existence of the geothermal resource by drilling and testing one small-diameter geothermal resource exploration well to a depth of 3,000 to 4,000 feet, and, if time and budget permit, to delineate the extent of the resource by drilling one additional temperature gradient hole to a depth of 2,000 feet (Figure 2). To establish the quality and extent of the geothermal resource, Republic must flow-test the small-diameter well, which will require the temporary discharge of geothermal fluids into tributaries of the Makushin Valley river. Because of its depth, the temperature gradient hole may also encounter a geothermal resource. In this event, Republic also desires to flow-test the temperature gradient hole. III. Purpose of Proposed Discharge Flow-testing a geothermal resource well is necessary so that quantitative data regarding the well's Productivity Index (PI) and flow rate, the reservoir's transmissivity, and the physical and chemical parameters of the reservoir fluid itself can be obtained. Without this-data, no realistic assessment can be made of a geothermal reservoir's viability as an energy producer. This assessment of the Makushin reservoir is the primary objective of the two-year contract with the Alaska Power Authority. FIGURE 1 UNALASKA ISLAND VICINITY MAP DRIFTWOOD BAY SUMMER BAY b-1 eX MAKUSHIN VOLCANO A vacev’ UNALASKA ISLAND MAKUSHIN MAKUSHIN BAY >¢ BASE camp — © THERMAL GRADIENT HOLES : = STUDY AREA SHOWN ON FIGURE 2 : FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 Oo TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) O- SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 © TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS Geothermal waters produced from well flow tests can be either: 1) returned to the reservoir by injecting into another well drilled or converted for that purpose; 2) discharged into surface storage basins and allowed to evaporate or injected back into the production well; or 3) discharged onto the surface and, in a controlled manner, allowed to enter the groundwater or surface water systems. For the Makushin Geothermal Project, no other well has been or will be drilled which would be available for injection of waste geothermal fluids. The previously drilled temperature gradient holes cannot be used for injection without a very expensive and time-consuming conversion Operation. Basins of a size sufficient to store the produced geothermal fluids would be quite large (20,000 cubic feet), and since no powered earth-moving machinery will be available at the site, almost impossible to construct. Construction of large storage basins would also potentially create significant environmental impacts. In addition, the nearly continuous rainfall at the site makes evaporation of the produced fluids from storage basins highly unlikely. Although fluid stored in the basins could be filtered and injected back into the Production well, this process would be both costly and involve risks to the continued Productivity of the well. Thus, the most reasonable technique available for disposal of these waste geothermal fluids appears to be a controlled discharge of the liquids into tributaries of the Makushin Valley river, as long as it can be demonstrated that this does not create significant environmental impacts. IV. Well Flow Test Design The geothermal well and temperature gradient hole will both be relatively small diameter, relatively shallow holes drilled by a continuous wireline coring rig only slightly larger than that used to drill the temperature gradient holes during 1982. The geothermal well is designed to be drilled to a maximum depth of approximately 4,000 feet and have a bottom-hole diameter of apprqximately 2-1/2 inches (surface casing diameter of approximately 5 inches). The temperature gradient hole will be drilled to a aepth of approximately 2,000 feet, until a geothermal resource is encountered, or until drilling is terminated by budget or weather limitations, whichever occurs first. Drilling of the well will cease once sufficient geothermal resource is encountered. The well (or temperature gradient hole, should a resource be encountered) will then be flowed directly into the small drilling mud pit (about 100 cubic feet) for a very short period of time (about an hour) to clean drilling muds, drilling fluids, formation cuttings, and other materials from the wellbore and producing formation. A sample of these fluids will likely be taken for analysis in Anchorage. The drilling rig will then be removed and the equipment for the flow test constructed and installed, a process that may take from four to seven days. The well flow test will consist of flowing the fluid through a small-diameter (two- to four-inch) pipe with sized nozzles on the end so that sonic flow is established. Pressure and temperature will be monitored downhole and pressure will be monitored at the nozzle. The flow rate can then be calculated. Alternatively, the fluid may be flowed into a small Surge tank, and the flow rate measured directly by a weir gate. Fluid samples will be taken for analysis at various intervals. The well will be flowed at approximately one-half maximum rate until the flow rate stabilizes, and then stepped-up to full flow, again until the flow rate stabilizes. The actual discharge points, relative to the tributaries of the Makushin Valley river, have not yet been determined. The points and methods of discharge to the river must be selected in the field, based upon proximity to the well or hole, terrain, and ability to eliminate as much as possible the creation of sediment and temperature impacts to the river. V. Discharge Characteristics Discharge will most likely occur about mid-August, 1983 for the exploration well and, should it prove necessary, either early-August or late-September for the temperature gradient hole (depending on whether the wells are drilled concurrently or consecutively). The discharge dates are entirely dependent upon the completion of the well (hole), which is, in turn, aependent upon drilling rates, difficulties during drilling, and weather. Therefore, the discharge dates may easily vary either way by two or three weeks, although the weather will probably prohibit any operations beyond approximately September 30. The well flow test will require flowing the well for approximately 4 days at an expected maximum flow rate of approximately 20,000 pounds per hour (0.09 cubic feet per second). These values may vary by as much as a factor of two, depending on the productivity of the resource, the time required for flow rates to stabilize, and other factors, all of which will only be known after the well is drilled and completed. | Based upon data developed during the 1982 field exploration operations, the geothermal reservoir is expected to produce a resource with a temperature of about 250°C and a total dissolved solids content of about 10,000 milligrams per liter. The temperature may vary by 50°C in either direction, and the solids content May vary, larger or smaller, by 5,000 milligrams per liter. -5- Republic has estimated the possible chemical characteristics of the geothermal fluids by assuming a similarity to the geothermal fluids produced from the only comparable (granitic) geothermal reservoir, that of Roosevelt Hot Springs, Utah. These estimates of Makushin Volcano geothermal reservoir chemical characteristics are presented in Table I. However, it must be emphasized that these values are only the result of extrapolations from a totally separate reservoir, and are not the result of actual measurements of the Makushin geothermal resource. Waste geothermal fluid actually discharged into the river will have a lower temperature and volume and a higher salinity than the geothermal fluid in the reservoir. Temperature of the fluid at the surface (wellhead temperature) will be decreased by the flashing of part of the pressurized liquid into steam. Additional flashing of the liquid down to atmospheric pressure at the surface will drop the temperature to about 100°C, and discharge to the river will be handled in such a way (temporary ponding, spraying, etc.) so that the fluid is as close to ambient water/air temperature as possible. Flashing of the geothermal fluid to atmospheric pressure will also produce steam which will decrease the volume of liquid by about 30 percent (at 250°C). This will result in an actual rate of discharge to the river of approximately 0.06 cubic feet per second. The salinity of the discharged fluid ‘will be increased by an equivalent amount (to approximately 14,300 milligrams per liter, assuming a reservoir salinity of 10,000 milligrams per liter). Discharge to the river will be handled in such a way (energy dissipaters, piping, etc.) so that sediment input to the river is minimized. VI. Receiving Water Characteristics During the 1982 field exploration operations, Republic's subcontractor, Dames and Moore, undertook an extensive program of baseline environmental data collection in and around the Makushin Valley river basin. Their final report is attached as Appendix I, and data pertaining to water quality and fishery resources of Makushin Valley river are summarized below. Water quality and flow rates were measured in the Makushin Valley river basin at two primary stations in the spring and two primary and two secondary stations in the fall (Figure 3). Field parameters (flow, dissolved oxygen, pH, conductivity, temperature, alkalinity, turbidity, and settleable solids) were measured at both Primary and secondary stations, and an extensive list of metals and other components were analyzed in the laboratory from samples taken at the primary stations. REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL ORILLING PROJECT 1983 TABLE [ ASSUMED MAKUSHIN GEOTHERMAL RESOURCE CHARACTERISTICS n Milligrams Per Liter Roosevelt Hot Sorinas Makushin Volcano Component Reservoir? Reservoir? Discharge® ee CD scharge” TOS 7,067 10,000 14,286 Sidg 260 368 526 Fe ; 5 7 10 Ca 8 VW 16 Mg 0.27 0.38 0.55 Na 2,437 3,448 4,926 K 448 634 906 HCO3 180 2s5 364 C03 0 0 0 S04 59 83 119 C1 3,500 4,953 7,075 F 5 7 10 Li 20 28 40 Sr 1.4 2.0 2.8 Cr < 0.1 < 0.14 < 0.2 8r <§ <7. < 10 Hg 0.0015 0.0021 0.0030 As 3.7 5.2 7.5 NHq 0.7 1.0 1.4 3 25° 35 51 Ba 0.46 0.65 0.93 Al 0.81 1.15 1.64 Mn < 0.2 < 0.3 < 0.4 Cu < 0.2 < 0.3 < 0.4 Pb < 0.2 <0.3 < 0.4 Zn < 0.2 < 0.3 < 0.4 Be 0.004 0.006 0.008 Ce < 0.2 < 0.3 < 0.4 Rb 3.9 5.5 7.9 Cd < 0.02 < 0.03 < 0.04 Ag < 0.04 < 0.06 < 0.08 sb <0.4 < 0.6 < 0.8 Ti < 0.4 < 0.6 < 0.8 Vv < 0.8 < 1.1 < 1.6 Co < 0.02 < 0.03 < 0.04 Ni < 0.1 < 0.14 < 0.2 Mo < 0.2 < 0.3 < 0.4 Au < 0.04 < 0.06 < 0.08 Bi < 1.2 < 1.7 < 2.0 U <1.2 < 1.7 < 2.4 Te < 0.6 < 0.8 < 1.2 Sa < 0.14 < 0.20 < 0.28 W < 0.12 < 0.17 < 0.24 cr < 0.04 < 0.06 < 0.08 La < 0.04 < 0.06 < 0.08 Th < 0.7 < 1.0 < 1.4 oH 6.5 6.5 6.5 a From Samfora, R. W., et al, 1980, Multielement Geocnemistry of Solid Materials in Geothermal Systems and its Aoplications 2art |: The Hot-water System at the Roosevelt Hot Springs KGRA, Utan. Eartn Science Laporatory, University of Utah Researcn Institute. 9 laiculated by multiplying the Roosevelt component concentration dy the assumed Makusnin TOS ana diviaing Sy the Roosevelt TDS. S Calculated sy aividing the calculatec Makushin Reservoir comconent concentration oy 9.7. FIGURE 3 MAKUSHIN VALLEY RIVER SAMPLE STATION LOCATIONS A Primary Sample Station @ Secondary Sample Station @ Temperature Gradient Hole Completed in 1983 © Tempory Base Campsite © Temperature Gradient Hole Proposed for 1983 Smail Diameter Geothermal Resource Exploratory Well Proposed for 1983 DRIFTWOOD UNALASKA ISLAND MAKUSHIN VALLEY ~N Via DRAINAGE BASIN BOUNDARY n River nateety GLACIER VALLEY 5 MILES ——— 5 KILOMETERS = Adapted from Dames & Moore 1982 Environmental Baseline Program Data Collection Finai Report. -3- In general, water quality at the Primary sample stations was pristine. Discharge was low in the spring and relatively high in the fall. Correspondingly, mineralization decreased from spring to fall, and turbidity and suspended solids increased over the same period. Because the discharge of geothermal fluids will take place during the fall, the fall values will be of primary importance. Fall data from Station MV, located downstream of the expected discharge points (and upstream of the highest known salmon spawning), are presented in Tables II, III and Iv. Fish sampling was also undertaken at both primary sampling stations in spring and fall. Adult and juvenile Dolly Varden char (Salvelinus malma) were Captured at both primary sampling stations. No other species of fish were captured, but numerous observations of pink salmon (Oncorhynchus gorbuscha) were made throughout the lower reaches of the river. Because of their known sensitivity and commercial value, the pink salmon are the aquatic species of greatest concern. No pink salmon were observed above one mile downstream of Station MV, although all fish passage barriers were located well above this station. Thus, Station MV is considered to be the point at which to judge the effects of the discharge to the waters and fishery resources of Makushin Valley river. VII. Potential Impacts By combining the geothermal fluid discharge and the fall values measured at Station MV, an estimate of the expected impacts to Makushin Valley river water quality can be made. These estimated values are presented in Tables II, III and IV. Because the discharge is anticipated to be less than two-hundredths of one percent of the river flow, the change in the river water quality will be undetectable for most constituents, and certainly negligible for those that can be Measured. And, for this reason, the impacts to Makushin Valley river fishery resources will be negligible. VIII. Proposed Monitoring and Mitigation Measures The above analysis suggests that expected impacts resulting from the discharge of geothermal fluid into Makushin Valley river will be negligible. However, this analysis is based upon a number of assumptions, including reservoir and well production characteristics, dates of discharge, and fish spawning status, which may well be altered by data obtained at the time of discharge. Accordingly, Republic proposes to undertake certain monitoring and mitigation measures to ensure that impacts are negligible. Republic will have the fall pink salmon spawning run monitored, in cooperation with the Alaska Department of Fish and Game, from its beginning to approximately establish the -9- -OT- Constituent Flow (cfs) DO (ppm) (% sat.) Conductivity (ambos/cm @ 25°C) pul Jemperature (°C) lurbidily (NIU) Seltleable Solids (m1/1) Alkalinity (as CaCO 3, ppm) Nardness (Carty, aa Cal03) free C02 (ppm) 155 (ppm) IWS (ppm) Nils - N (ppm) Votal Kjeldahl - N (ppm) Total Phosphate (ppm) Orthophosphate (ppin) Wea 76 tra a0 wn Measured HV (Sept. 62) REQUEST FOR SHORT-TERM WATER QUALITY VAR TANCE UNALASKA GCOTNERHAL DRITCING PROJECT Estimated MV + Test (Sept. 83) 1903 TABLE IE ESTIMATED CONCENTRATIONS OF CONTAMINANTS (GENERAL) IN HAKUSHTIN VALLEY RIVER AT HV STATION DURING GEOTHERHAL WELL TESTING AND DISCHARGE Criterion; Source(1) 270 12.6 (99) 02 6.1 4.8 3 Out 5.4 W 0.5 26 52 <O.01 0.52 0.00 0.04 U.S. Environmental Protect ion Ay U.S. Environmental Protect ion Age MW ADL = Alaska Department of Cav ironmental Conserval ton Wal Cer Qui 270.09 6.1 4.9 56.7 0.01 0.52 0.00 0.04 y 1976 Qualit y 1960 Anbien! 5.0 minimus; EPA 76 6.5-9.0; EPA 76 20 (7)5 EPA 76 (K10% reduction in photosynthetic compen- sation point; EPA 76) (<10% reduction in photosynthetic compen- sation points EPA 76) 20; LPA 76 110% saturation; EPA 76 Sune as turbidily 250; EPA 76 160; EPA 76 (10 as NOs); ADEE (0.01 elemental); CPA 76 (0.01 elemental); EPA 76 Criteria Cor Water ("the Red ook") ater Quality Criteria ality Standards (7979) and/or Drinking Walter Regulations (1902) Comment 0.03% increase No significant reduct ion expected No significant change from ambient; existing is below standard No significant increase expected No significant change expected No significant change expected RLQUEST FOR SHORT-TERM WATER QUALLTY VARLANCE UNACASKA GEOTHERHAT ORITTING PROTECT TAULE TL ESTIMATED CONCENTRATIONS OF CONTAMINANTS (CATIONS) IN MAKUSHIN VALLEY RIVER AL MV STATION DURING GEOTHERMAL WELL TESTING AND DISCHARGE -TI- Cation (Sept, 62) (ppm) _ (Sept. 63) (ppm) Source (ppa) Comment Alominum 1.43 1.43 -- No significant change expected Antimony -- <0.4 9; EPA 00 Qelow standard Arsenic(2) 0.0016 0.004 0.05; ADEC Below standard Nariunl2) -- -- 1; ADLC Relow standard Beryl bium(2) <0,001 0.001 0.13; EPA 00 No significant increase expect ed Bismuth -- <1.2 -- No significant increane expected Horon O.W 0.12 0.75; EPA 76 Helow slandard Cadi im 2) <O.002 0.002 0.010; ADEC No significant increase expected Calcium 6.3 6.3 -- No significant increase expected Cer ium(2) <o.01 O.01 -- No significant increase expected Che om ium?) -- <o.t -- No significant increase expected Cobar (2) <0.007 0.007 -- No significant increase expected Copper (2) 0.010 0.01 4.4-5.6; EPA 00 Below standard Iron 1.632 1.635 1.0; EPA 76 Nove standard; 0.2% over existing Geemanium(2) and O.1 -- No significant increase expected Cold -- <0.04 -- No significant increase expected Lanthanum 2) <O.01 O.01 -- No significant Increase expected tead(2) <0.0001 0.0001 0.05; ADEC Below standard Lithium -- -- -- No significant increase expected Haynes itn 2.0 2.0 -- No significant increase expected Hannya 0.021 0.021 0.05-0.10; EPA 76 Below standard He <0.0002 0.0002 0.002; ADEC Qelow standard Molybdenum 2) <O.02 0.02 -- No significant increase expected Nickel (2) 0.021 0.021 0.026-0.05; EPA 00 Below standard; existing is near standard Potassium 0.055 0.36 -- 0.1% of seawaler concentrat ion tub idium(2) -- -- -- No significant increase expect ed Selenium(2) <0..0005 -- 0.01; ADEE No significant increase expected Silver (2) <0.002 0.002 0.05; ADE Helow standard + Sodium 4.0 6.5 250 (as salt); ADEC felow standard; 0.06% of seawater concentration Stront inml2) -- -- -- No significant increase expected fel lurium -- <.6 -- No significant increase expect ed Thor iam -- <O.7 -- No significant: increase expect ed tin -- <O.14 -- No siqnificant increase expect ed Hitanium(2) <0.04 0.04 -- No significant increase expected lungsten -- <O.12 -- No significant: increase expected Uranion -- <1.2 -- No sige cant increase expected Vanadium 2) -- 0.8 -- No significant increase expected Zine (2) 0.019 oO. 0.047-0.077; EPA WO Qelow star ad Measured MV tatimated MV + Test Criterion; Anion/Neut ral Constituent Bromide Chloride Fluoride Total Silica Dissolved Silica Sulfate ‘Sul Fide (NEPA 76 EPA 80 REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1983 TABLE IV ESTIMATED CONCENTRATIONS OF CONTAMINANTS (ANIONS AND NEUTRAL) IN MAKUSHIN VALLEY RIVER AT MV STATION DURING GEOTHERMAL WELL TESTING AND DISCHARGE Measured MY (Sept. 82) (ppm) <0.20 2.4 0.08 22.0 16.0 21.7 <0.10 U.S. Environmental Protection Agency 1976 U.S. Environmental Protection Agency 1980 ADEC = Alaska Department of Environmental Conservat Drinking Water Regulations (1982) Estimated MV + Test (Sept. 83) (ppm) 0.2 4.8 0.08 16.2 21.7 Qualit hibTent W ater Quality Criteria ion Water Quality Standards (1979) and/or Criterion; Source (ppm) (1) 0.002; EPA 76 Criteria for Water ("the Red Book" Comment No significant increase expected Above standard; 0.03% seawater concentrat ion No significant No significant No significant No significant increase expected increase expected increase expected increase expected Existing is above standard; no significant increase expected ) size of the run and the upstream limit prior to, during, and following discharge. Makushin Valley river water quality and flow rates will also be measured prior to, during, and following discharge at Station MV, Station BC, and a new station immediately downstream from the discharge point. Conductivity or chloride measurements will likely be used as the prime index of water quality in the field; however, we do anticipate collecting a relatively complete chemical sample from Station MV both prior to and during the test. Republic may be able to collect and have analyzed a sample of geothermal fluid obtained during the initial cleanout flow. This may give us an idea of the actual geothermal fluid constituents immediately prior to actual discharge. Establishing Makushin Valley river water quality and flow rate prior to discharge will also give us the ability to estimate the magnitude of dilution. Following the pink salmon spawning run will help identify the fish's extent of exposure to water quality changes. -13- NOTE TO READER OF PHASE IB REPORT: Appendix I attached to this application is the "1982 Environmental Baseline Data Collection Program Report” Prepared by Dames and Moore. This document is reproduced in its entirety as Appendix A of the Phase IB Report, so it is not reproduced again in this Appendix. Appendix N-3 Letter to Alaska Department of Natural Resources February 24, 1983 NOTE TO READER OF PHASE IB REPORT: The letter to David Hedderly-Smith of the Alaska Department of Natural Resources regarding proposed drilling operations took the form of a carbon copy of the Special Use Permit Application submitted to the U. S. Fish and Wildlife Service. This document is reproduced in its entirety as Appendix N-l of the Phase IB Report, so it is not reproduced again in this Appendix. Appendix N-4 Habitat Protection Permit Application submitted to . Alaska Department of Fish and Game RECEIVEC MAR 0 4 1883 800 Cordova, Suite 101 Dames & Moore | trsise sins: 950 === | (907) 279-0673 Telex: 090-25227 Cable address: DAMEMORE March 1, 1983 Mr. Kim Sundberg Alaska Department of Fish & Game Habitat Protection Division 333 Raspberry Road Anchorage, AK 99502 f Dear Mr. Sundberg: As part of the permit process for the Unalaska Geothermal Exploration, our client, Republic Geothermal, Inc. (RGI) has filed an application for a Short-Term Water Quality Variance with the Alaska Department of Environmental Conservation (ADEC). The application (letter) was filed on February 28, 1983. A copy of the application, with attachments (RGI's description of operations and Dames & Moore's 1982 environ- mental baseline report) is enclosed for your reference. Pursuant to AS 16.05.870 and conversations between Mr. Denby Lloyd of your office and Steve Grabacki of Dames & Moore, we are applying for a Habitat Protection Permit, on behalf of RGI and the Alaska Power Authority. This letter of application addresses the short-term (approximately 4 days) discharge of limited quantities (approximately 0.09 cubic feet per second) of geothermal fluid into the upper reaches of Makushin Valley River, from one or two exploratory wells high on the slopes of Makushin Volcano on Unalaska Island. This discharge is nec- essary to test the strength and character of the geothermal resource. The enclosed description of operations provides more detailed information regarding the test. Aside from this test and the withdrawal of water for camp and drilling purposes, no other discharges or other in-water operations are planned. : The enclosed 1982 environmental baseline report describes the affected environment on Makushin Volcano. Dolly Varden char were found in Makushin Valley River, and pink salmon spawn in the lower reaches. No other fish species was observed or reported in this stream. i The water withdrawal needs of this project will occur under Alaska Department of Natural Resources Temporary Water Use Permit TWP 82-12 (issued May 17, 1982; expires September 30, 1983). ADFG has advised us (letter of June 3, 1982) that no Dames & Moore Habitat Protection Permit will be required for the water withdrawal. . Although we understand that ADFG will review the ap- plication for a Short-Term Water Quality Variance submitted by RGI to ADEC, RGI has asked us to submit this letter of appli- cation for a Habitat Protection Permit directly to ADFG, in order to expedite the permit process. Thank you for your review of this application. If you have any questions or comments, please do not hesitate to contact us. Sincerely, DAMES & MOORE . tpl See Stephen T. Grabacki Project Manager STG:dg Enclosures xc: Mr. Dwight Carey =z NOTE TO READER OF PHASE IB REPORT: Attached to this application was a copy of the Short-Term Water Quality Variance Request. This document is reproduced in its entirety as Appendix M-2 of the Phase IB Report, so it is not reproduced again in this Appendix. Also attached to this application was a copy of the "1982 Environmental Baseline Data Collection Program Report" prepared by Dames and Moore. This document is reproduced in its entirety as Appendix A of the Phase IB Report, so it is not reproduced again here. Appendix N-5 Letter to United States Environmental Protection Agency 7 March 9, 1983 REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 March 9, 1983 Mr. Roger Mochnick Environmental Protection Agency 1200 Sixth Street Seattle, Washington 98101 Dear Mr. Mochnick: As you may recall, Mr. Steve Grabacki of Dames & Moore spoke with you on March 1, 1983 regarding an Alaskan geothermal project. Per that discussion, attached is a copy of a request to the Alaska Department of Environmental Conservation (ADEC) for a Short-Term Water Quality Variance to allow the short-term discharge of limited quantities of geothermal fluids into tributaries of the Makushin Valley river on Unalaska Island. Based upon discussions with the ADEC and the Environmental Protection Agency (EPA) office in Anchorage, we believe that no approval from the EPA is required for this discharge. However, with this letter we are requesting your agency's official determination that no permit from the EPA is required. As the attached information indicates, Republic, under contract to the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. During the summer of 1983, Republic is planning to drill at least one small-diameter well capable of encountering and testing the geothermal resources which were tentatively identified during the 1982 exploration activities. Testing of the geothermal resource will require flowing the well(s) and disposal of the produced fluid into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data collected during the 1982 exploration activities gives us the ability to estimate the chemical and physical characteristics of the Makushin geothermal resource. Based upon these data, Republic estimates that the well flow test will be a short-term (approximately 4 days) discharge of limited quantities (approximately 0.09 cubic feet per second) of geothermal fluid into the extreme upper reaches of Makushin Valley river. Also enclosed, as an attachment to the request to the ADEC, is a copy of the final report of the 1982 environmental baseline data collection program for the Unalaska Geothermal REPUBLIC GEOTHERMAL. INC. Mr. Roger Mochnick March 9, 1983 Page Two Project. The report indicates that Dolly Varden char were found throughout the Makushin Valley river, and pink salmon spawn in the lower reaches, although no pink salmon were observed closer to the potential discharge point than approximately three miles downriver. No other fish species were observed or reported in this river. Makushin Valley river flow in the fall of 1982 was approximately 270 cubic feet per second. Because of the short-term, low-volume nature of the test discharge, the great distance downriver to the pink salmon, and the significant amount of dilution which will occur, Republic believes that the proposed discharge can be conducted in a manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic will also undertake monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources, Mr. Robert C. Flint of the ADEC (907-274-2533) and Mr. Kim Sundberg of the Alaska Department of Fish and Game (907-344-0541) have been primarily responsible for the review of this request for their’ respective agencies. Should you have questions regarding this request, please do not hesitate to contact either these individuals, me, or Republic's environmental subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, ae Gu Dwight L. Carey, D.Env. Manager, Environmental Affairs DLC:clj Attachment cc: P. DeJong, APA S. Grabacki, D&M Appendix N-6 Letter from United States Environmental Protection Agency March 28, 1983 RECEN IZ NAR 22 1983 U.S. ENVIRONMENTAL PROTECTION AGENCY ted STAy—. REGION X 1200 SIXTH AVENUE SEATTLE, WASHINGTON 98101 REPLY TO ATIN OF M/S 521 March 28, 1983 Mr. Dwight L. Carey Environmental Affairs Republic Geothermal, Inc. 11823 East Slauson Avenue Santa Fe Springs, CA 90670 Dear Mr. Carey: We have received the information you sent us regarding your proposed discharge and have determined that it is subject to a National Pollutant Discharge Elimination System (NPDES) permit. Enclosed please find the NPDES permit application forms. For a discharge of less than 50,000 gallons per day, use the Short Form C ; application and for discharges of 50,000 gallons per day and more, use the Standard Form C application. I have also sent the NPDES application forms to Steve Grabacki of Dames and Moore at his request. Please return the completed forms as soon as possible so we may further process your discharge reauest. If you have any questions please contact me at (206) 442-1272. Sincerely, ed Paul Wong Water Permits Section Enclosures ce: Steve Grabacki Appendix N-7 Application for a National Pollutant Discharge and Elimination System Permit submitted to United States Environmental Protection Agency REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) $45-3661 April 4, 1983 Mr. Roger Mochnick Region X U. S. Environmental Protection Agency 1200 Sixth Avenue Seattle, Washington 98101 Dear Mr. Mochnick: As requested in a letter from Paul Wong of your office, dated March 28, 1983, please find enclosed our "National Pollutant Discharge Elimination System Application for Permit to Discharge - Short Form C" and the $10.00 application fee. This application is for temporary discharge of geothermal fluid into unnamed tributaries of the river in Makushin Valley, Unalaska Island, Alaska. Attached to the Short Form Application is a copy of our Short-Term Water Quality Variance Request, submitted to the Alaska Department of Environmental Conservation (ADEC), which provides additional details of the proposed operations. We have received verbal communication from the ADEC that they are going to approve the Short-Term Variance. We have also received a written determination from the Alaska Department of Fish and Game that a Habitat Protection Permit will not be required for this project. Under our current schedule, we anticipate the commencement of field activities by May 29, 1983. We understand from a telephone conversation between Dwight Carey of Republic and Sylvia Kawabata of your office that our operations should not be delayed due to the NPDES permit process. If our understanding is not correct, please let us know as soon as possible. We appreciate your attention to the processing of this application. Should you have any questions or concerns, please do not hesitate to contact either Dwight Carey or myself. Sincerely, Tawna J. Nicholas Senior Environmental Planner TIN:clj Enclosures Form Approved OMB Ne. 154 - 20096 NATIONAL POLLUTANT OISCHARGE ELIMINATION SYSTEM “APPLICATION NUMBER APPLICATION FOR PERMIT TO DISCHARGE - SHORT FORM C FOR ” : AGENCY USE To be filed only by persons engaged in manufacturing and gaining YEAR Oo, OAY Oe noc atcemoc to comiete this form before reading accompanying instructions PY c NOTE: Please see attachment for complete project description. 1. Mame, address, location, and telephone number of facility producing discharge A. Name Small—diameter geothermal well near Makushin Volcano on Unalaska Island 8, Mailing address of Applicant: Republic Geothermal, Inc. 1. Street address _11823 E. Slauson Avenue, Suite One 2. City Santa Fe Springs California 3. State ——aliforsia 4. County Los angeles $. 7p 90670 C. Location: 1, Street _2.73S.. R.120W. Seward Meridian 2. City N/A 3. County (Unalaska Island) ——E Ee) 4, Stace Alaska D. Telepnone No, 213 945-3661 = of Applicant. There will not be a telephone Area ares at the geothermal wellsite. (Leave biank) 1. Kumper of emioyees _2Detoximately 3-5 on-site during well testing operations. If all your waste is discharged into a publicly owed waste trescment facility and to the best of your knowiedge you are not required to obtain a discharge permit, proceed to item 4. Otherwise proceed directly to item 5. 4. [f you meet the condition stated above, check here and supply the information asked for below. After completing these items, please comiece the date, title, and signature blocks below and return this form to the proper reviewing office withowt completing the remainder of the form, : A, Name of organization responsibie for receiving mas Ce 8. Facility receiving waste: Te Mame . 2. Stree OS 3, City en 4. Councy eee S. Stare 6. ZIP 3. D Principal product, Qraw material (Chect one) Flashed geothermal fluid 3. Principal process Fluid will be flashed and allowed to cool prior to discharse. Ne prior to discharge, 7, Maximsm amount of principal product produced or raw material consumed per (Check one) Amount Basis 1-99 100-199 200-499 800-999 1000- $000. 10 ,d00- $0,000 4999 9999 39.999 or more a) (2) (3) (4) (8) (6) (7) (8) A, Day | { | | | 3. Montn | | | C. Year . x | EPA Ferm 7550-2 (Rew. 3274) PREVIOUS EDITION MAY BE USED UNTIL sUPBLY is exmausteD 8, Maxiqxms amount of principal sroducs produced or raw material consumed, reported in item 7, apeve, is measured in (Check one): A.S pounds 8.5 tons C.c barreis O.c busneis E.c square feet FS gailons G.c pieces or units H.gother, speci ty 9. (a) Check here if discharge occurs ail year qc, or (b) Cheek the month(s) discharge occurs: Note: Only 3 to 6 comsecutive days omce in September 1.8 January 2.c February 3.QMarch 4.c April S.gMay 6.0 June 7.2 July 8.6 August 93 Seotemver 10.90 Octoser 11.5 Rovember 12.5 Cecemner (¢) Check how many days per week: lot 2.823 3 45 4.067 See Note above. 1G. Types of waste water discharged to surface waters only (check as applicable) Voluse treated berore discnarging (percent) Flow. gailons per cperating day 3Q- | 65- 9$- 29.9 | 64.9 | $4.9} 100 (7) | (8) | (3) | (10) 8. Cooling water, etc. daily average GO. Maxtcua per “coerate ing day for total dtscnarce (ail _tyoes} 1. If any of the three types of waste identified in item 10, either treated or umrested. are discharged to places other than surface waters, check below as applicapie. Average flow, gallons per operating day Municipal sewer system Evaporation laaoon or pond 12. ttumber of separate discharge points: A.B 1 8.32-3 C.o4-5 0.56 or more 13, Mame of receiving water or waters Unmamed tributaries to river in Makushin Valley, Unalaska 14, Does your discharge contain or is it possible for your discnarce to contain ane or more of the following sudstances 2dded as a result of your operations, activities, or processes: ammonia, Cyanice, aluminum, beryilium, cadmius, NOTE: chromium, cooper, lead, mercury, nickel, selenium, zinc, pnemois, ail and 7 I certify that [ am familiar with the informacion contained in the r_apol ication and that to the best of ay knowledge and belief such information is-true, complete, and accurate. A Timothy M. Evans Vice President _ 4) Preintea tame of Person Signing - “Title ee yt April 4. 1983 . By: type Te ee. Gate Appi ication Sicned Signature of Appl {cant fecal aN 13 U.S.C Seenen 1907 pevides that: ‘ . Wheever, in ny matter within wre jurisdiction af eny devarmnent or agency of he Unit: taces knawnagty and wifuily {aisifies, concads, of vers up by any (nck, scheme or dawce « matensi fact, ar makes any (aise, Gicinous, of [raudient statements or represmitaione or makes or uses any (aise wating of document knowing same (o castam any (aise, fictitious, ar femachsdant statement or entry, shell be Gned not more tran $19,000 oF impa soned not more than $ years, or both. Island Please see attached grease, and chlorine (residual). A.dyes 8.c no project description *¥Flashed geothermal fluid i Appendix N-8 Letter to Alaska Department of Natural Resources April 14, 1983 REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 April 14, 1983 Mr. Arnold van Horn Alaska Department of Natural Resources Pouch 7-005 323 East Fourth Avenue Anchorage, Alaska 99510 Dear Mr. van Horn: This letter requests your review of Temporary Water Use Permit 82-12, which was issued May 17, 1982 for a temporary appropriation of 30,000 gallons per day from unnamed creeks on Unalaska Island for temperature gradient hole drilling oper- ations to be conducted during the summer field seasons of 1982 and 1983. Under this permit, in 1982 Republic drilled three 1500-foot temperature gradient holes, as proposed in the original application. Operations were conducted in accordance with the conditions of TWP 82-12. During the summer field season of 1983, Republic proposes to drill an additional 2000-foot temperature gradient hole and a 3000- to 4000-foot small-diameter geothermal resource exploratory well. Figure l is attached to show the location of the proposed hole and well. The 1983 operations will be very similar to the temper- ature gradient hole operations conducted in 1982, with two exceptions. The first exception is that a slightly larger continuous wireline coring rig will be used due to the greater depth to be drilled; however, the amount of water needed for drilling will not exceed the 30,000 gallons per day temporary appropriation. The second exception is that the small-diameter well is to be drilled with the intention of encountering the geothermal resources in excess of 120°C that were tentatively iden- tified during the 1982 exploration activities. If the resources are encountered, the well will be flow-tested to establish the quality and extent of the geothermal resource. According to AS 41.06.050-41.06.060, we understand that no appropriations permit is required for producing this geo- thermal fluid. However, Republic has already requested a Short-Term Water Quality Variance from the Alaska Department REPUBLIC GEOTHERMAL. INC. Mr. Arnold van Horn April 14, 1983 Page Two of Environmental Conservation and has received verbal commu- nication that the Variance will be issued. We have also received a written determination from the Alaska Department of Fish and Game that a Habitat Protection Permit will not be required for the testing operations. Since the proposed 1983 field operations were not actually a part of the original application, Republic requests your review of the information contained in this letter to determine if the existing TWP 82-12 is sufficient for the proposed 1983 operations. If it is not, we request that you issue an appropriation permit to cover the 1983 operations. Republic would be happy to supply any additional information which may be necessary for your determination. In addition, although the Alaska Department of Fish and Game last year determined that the operations authorized under TWP 82-12 did not require a Habitat Protection Permit, we have sent to them a copy of this letter so that they may also review the request. Should you have any questions about this project or our request, please do not hesitate to contact me at the above address and phone number, or our subcontractor's representative: : : Mr. Steve Grabacki Dames and Moore 800 Cordova Street, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, . Tawna J. Nicholas Senior Environmental Planner TIN:clj Attachment cc: S. Grabacki- D&M K. Sundberg - ADFG FIGURE 1 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND SCALE IN FEET~ ; a \ 0 Vener @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 © TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) oO SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 (© TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS Appendix N-9 Letter to Alaska Department of Environmental Conservation April 14, 1983 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 April 14, 1983 Mr. Carl Harmon Alaska Department of Environmental Conservation 437 E. Street, Second Floor Anchorage, Alaska 99501 Dear Mr. Harmon: On April 29, 1982 your agency issued a two-season Solid Waste Permit (No. 8221-BA002) for the construction ana utilization of a solid waste disposal pit at a temporary base camp on Unalaska Island. Operations in the 1982 field season were conducted in accordance with the terms of the permit, and at the end of the field season the refuse disposal pit was abandoned. This letter is to inform your office that we intend to commence operations for the 1983 field season by May 29. Plans for the 1983 temporary camp are the same as the 1982 temporary camp, and all conditions of the above-referenced permit will be complied with during the 1983 season. Should you have any questions or concerns about this project, please do not hesitate to contact me at the above address and phone number, or our subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova Street, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Jaumag Wachelas! Tawna J. Nicholas Senior Environmental Planner TIN:clj cc: S. Grabacki, Dames and Moore Appendix N-10 Letter to Alaska Department of Natural Resources April 15, 1983 REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-3661 April 15, 1983 Ms. Kate Fortney, Reservoir Engineer Division of Oil and Gas Management Alaska Department of Natural Resources Pouch 7-005 555 Cordova Street Anchorage, Alaska 99510 Dear Ms. Fortney: Republic Geothermal, Inc. has previously sent to your office, through David Hedderly-Smith, information regarding a geothermal exploration drilling project being conducted for the Alaska Power Authority on Unalaska Island. In addition, Dwight Carey of Republic spoke with you by telephone regarding the ‘proposed project, the Alaska Department of Natural Resources’ (ADNR) geothermal drilling regulations (which, to our understanding, have not yet been issued in their final form), and uncertainty concerning the ADNR's regulatory authority over the drilling. By this letter, Republic would like to request a provi- sional drilling authorization for one 2000-foot temperature gradient hole and one 4000-foot small-diameter geothermal exploratory well on Unalaska Island. This would allow the drilling to proceed pending the issuance of the final ADNR geothermal regulations and clarification of the ADNR's authority to regulate these drilling operations on federally- administered lands. Attached to this letter are the proposed drilling programs (as Exhibit A), a description of operations (as Exhibit B), and a letter from the Aleut Corporation (as Exhibit C) to provide you with information which may be necessary to issue a provisional drilling authorization. Republic anticipates commencement of operations by May 29. We trust that a provisional authorization, or any other action which may be deemed appropriate by your agency, can be completed by that date. If this is not possible, or if REPUBLIC GEOTHERMAL, INC. Ms. Kate Fortney April 14, 1983 Page Two any additional information would be useful to help your agency make a determination, please contact either myself or Dwight Carey at the above address and phone number, or our subcon- tractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova Street, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Sauna a Nicholas) Tawna J. Nicholas Senior Environmental Planner TIN:clj Attachments cc: S. Grabacki EXHIBIT A DRILLING PROGRAMS UNALASKA GEOTHERMAL PROJECT I. Small-Diameter Geothermal Resource Exploration Well A. Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter L-80, 11.5 lb. casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a Master valve, 6" B.O.P., flow tee, and a rotating stripper head. Drill out cement using HQ (3.782") wireline coring tools with mud or water as the circulating medium. Drill ahead to approximately 1,000 ft. Cement HQ (3 1/2") drill rod with casing shoe bit in hole at approximately 1,000 ft. Change over to NQ size (2.980") wireline coring tools. Core ahead until encountering reservoir or 3,000 ft. If production is encountered, run short flow test to obtain fluid sample and temperatures. If no reservoir is encountered, changeover to BQ (2.360") coring tools and core to approximately 4,000 ft. T.D. After reaching the resource reservoir, (+4,000 ft., or the rig capability limit), conduct short flow test for collection of water sample for analysis prior to conducting longer term flow test. While sample analysis is being conducted, rig down drilling equipment. Rig up flow line and wellhead for flow test. Assuming analysis of fluid sample collected in steps 4 or 5 permits, a more extensive flow test will be conducted. Note: Figure 1 is attached for a schematic diagram of the proposed casing program. FIGURE 1 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 4,000 FT. SMALL—DIAMETER GEOTHERMAL RESOURCE EXPLORATION WELL SURFACE Ws 6" GATE VALVE 8 1/2” HOLE 5” CASING TO 150 FT. 150 FT. HQ (3.78’’) HOLE 1,000 FT.——— HQ ROD CASING (3 1/2’) : CEMENTED TO 1,000 + FT. NQ (2.98’) HOLE 3,000 + FT. ————— COMPLETED OPEN HOLE BO (2.36) HOLE 4,000 + FT. Far n149 OR RIG CAPABILITY II. Temperature Gradient Hole A. Notes: Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of S-inch diameter F-25 or J-55, 11.5 lb., threaded and coupled casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.O.P., and a stripper head. Drill out cement using a 4-1/4-inch rotary bit with mud or water as the circulating medium. Drill ahead as far as possible or until lost circulation or hole Problems force changeover to NQ size (2.980-inch diameter) wireline coring tools. After changeover, continue to core NQ or smaller size hole to total depth of approximately 2,000 feet. Run 1 1/2-inch steel tubing to T.D. (approximately 2,000 feet). Clabber mud with cement and circulate to fill the annulus. Fill the tubing with clean water and cap. Cement top 20 feet of annular space. Remove BOPE's, rig down, and move out drilling equipment. Cap tubing with threaded cap. Approximately seven to ten days after drilling Operations are completed, a temperature profile will be run on the well. 1) Although encountering a resource is not expected while drilling to this depth, the following is a contingency plan in the event a potentially producible resource is encountered: a) Before running 1 1/2-inch tubing, attempt limited flow test to mud tanks to clean the well and to acquire fluid samples for chemical analyses. Excess fluid may be returned to the TGH after sampling. 2) 3) b) After the test, run 1 1/2-inch tubing. Cement tubing from surface to T.D. Displace cement with water using latch-down wiper plug. c) Remove BOPE's, rig down, and move out. Cap tubing with threaded cap. Figure 2 is attached for a schematic diagram of the proposed casing program. To abandon the temperature gradient hole, cut the tubing and casing below ground level, plug the top 15 feet of the tubing with cement, and cover the hole with soil. FIGURE 2 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 2,000 FT. TEMPERATURE GRADIENT HOLE SCREW CAP SURFACE CEMENT TOP 20FT. OF ANNULAR SPACE 8 1/2” HOLE 5" CASING TO 150 FT. 150 FT. -+————1 1/2” GALVANIZED PIPE 4 1/2” AND/ OR NQ (2.98) HOLE o@————- CLABBERED MUD IN HOLE TOT.D. I SCREW CAP —=x=«aw 2,000 FT. FGI ol47 EXHIBIT B DESCRIPTION OF OPERATIONS ALASKA POWER AUTHORITY: UNALASKA GEOTHERMAL PROJECT ac Introduction The Alaska Power. Authority (APA) has contracted with Republic Geothermal, Inc. (Republic) to explore the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. Figure 1 is a vicinity map showing the location of Unalaska Island. Figure 2 is a map showing the location of the proposed exploratory operations on Unalaska Island. During the 1982 field season, Republic drilled three 1500-foot temperature gradient holes (D-1, Fox Canyon; E-1l, Base Camp; and I-1l, Glacier Valley) which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic proposes to confirm the existence of the geothermal resource by drilling and testing one small- diameter geothermal resource exploration well, and to delineate the extent of the resource by drilling one additional deep temperature gradient hole (TGH). The 1982 operations were conducted under Special Use Permits AI-82-09 and AI-82-10. The 1983 operations are the subject of this permit application. II. Location of Proposed Operations : The preliminary information from the 1982 temperature gradient hole operations has been integrated with the environ- Mental, geological, and logistical data’ in order to choose the site for the small-diameter geothermal resource exploration well. The well site is to be located approximately 300 yards north of the 1982 base camp site (Figure 2). The proposed site for the 1983 temporary base camp is the same as the base camp site used during 1982 for the initial geophysical work and the temperature gradient hole operations. This camp will be used by all personnel. The temperature gradient hole is proposed to be located on the western plateau of Sugarloaf. Figure 2 shows an approximate location for the TGH, which is designated as A-1l and is commonly referred to as the Sugarloaf site. While the TGH is proposed to be located on the Sugarloaf plateau in the general vicinity of the site shown, the final location will be selected in the field based on geologic markers, logistical constraints, and water availability. DRIFTWOOD BAY MAKUSHIN MAKUSHIN BAY >< BASE CAMP NN © THERMAL GRADIENT HOLES 3 STUDY AREA SHOWN ON FIGURE 2 . varcey’ UNALASKA ISLAND FIGURE 1 UNALASKA ISLAND VICINITY MAP SUMMER BAY FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 oO TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) oO SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 O TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS III. Discussion of Proposed Operations The currently proposed operations will be very similar to the temperature gradient hole operations conducted during the summer field season of 1982. The small-diameter geothermal recource exploration well and the temperature gradient hole will also be drilled using a continuous wireline coring rig. However, a slightly larger rig will be necessary because the small-diameter well will be drilled to a depth of 3,000 to 4,000 feet. The main differences are that the 1983 rig has a larger engine and a heavier mast than the 1982 rig. Figure 3 is a drawing of the type of rig which will be used. The rig will be transported by barge to Unalaska Island and then transported in sections by helicopter to and from the drill sites. The temperature gradient holes drilled in 1982 were drilled to a depth of 1,500 feet. The TGH proposed to be drilled in 1983 will be drilled to a depth of approximately 2,000 feet, until additional drilling is precluded by weather, until drilling is terminated by budget limitations, or until a geothermal resource is encountered. The TGH May be drilled subsequent to the small-diameter well by the coring rig, or the TGH and the small-diameter well May be drilled con- currently with two wireline coring rigs of the same type. The latter alternative would decrease the possibility of not completing the TGH due to lack of time or bad weather. For further information regarding drilling procedures, Please see Section Iv. An area of approximately 30-feet by 50-feet will be leveled for each well as necessary by hand labor or the use of lumber for the rig. A series of small mud pits or steel tanks will be used to collect the rock cuttings and to store the drilling fluid before it is recirculated. The drilling opera- tions will require approximately 500 gallons of water per day which will be obtained from snowmelt or a nearby rivulet and will be stored in a small tank on location. Figure 4 is a sketch of a typical small-diameter well and TGH site. When the small-diameter well and the TGH are each com- pleted, the cuttings and waste drilling fluid (drilling mud and/or water) will either be dried and the residue spread on the surface of the ground, or buried and covered with native soil depending upon the most environmentally appropriate disposal technique for the site. The amount of waste drilling fluid is likely to be less than 200 gallons since most of the drilling fluid generated during the drilling of both the small-diameter well and the TGH will be used to set the cement around the casing during well completion. Most of the rock wn Ww a a = tf “a Wu va oO ° DRILLING RIG 10'X 15’ MUD PIT OR TANK 5'X10° FIGURE 4 TYPICAL SITE PLAN (LAYOUT BASED ON AN AREA OF APPROXIMATELY 30’X50') 300 GALLON EQUIPMENT TENT WATER TANK 12'X20° (100') HELICOPTER LANDING AREA SLEEPING TENT 12'X20' FGI D120 cores will ultimately be sent to the Alaska Division of Geophysical and Geological Survey offices, to Republic for study, and to various agencies as samples. They will be boxed and transported from the site by helicopter. Drilling operations for the small-diameter well should take approximately sixty-five days, and operations for the TGH should take approximately thirty days. Drilling will continue 24 hours per day and will require two or three three-person drilling crews, one contract drilling foreman, a site operations supervisor, a camp cook, and periodically one or two geologists, engineers, technicians or environmental scientists. Food and fuel will be purchased at Dutch Harbor to the greatest extent possible. The drill crews, camp cook, geologists, engineers, and environmental scientists will be housed at the temporary base camp. The helicopter and the pilot will be based at the camp. The helicopter mechanic will be quartered in Dutch Harbor, where various additional support personnel will be staying for short periods of time during the operations. The portable camp will consist of approximately four to six 12-foot by 20-foot sleeper tents, one 15-foot by 30-foot cook tent, one 15-foot by 30-foot shower and laundry tent, and a portable outhouse. Two 12-foot by 20-foot sleeper/storage tents (or equivalent) will also be placed at the TGH site for use in bad weather. Garbage from the camp will be transported back to proper waste disposal facilities in Dutch Harbor, or will be treated and buried on site. Grey waste water will be disposed through an onsite pit or a leach line built by the camp construction company. Black waste water may go through a leach line system, may be placed ina pit and treated with lime, or may be dried and burned. A permit for waste disposal was obtained from the Alaska State Department of Environmental Conservation for the 1982 operations and is currently being renewed for the 1983 operations. The drilling crew will be transported between the camp, the TGH site, and Dutch Harbor by helicopter. The crew will be helicoptered to the TGH site, but will likely walk from the camp to the site of the small-diameter resource exploratory well. Helicopter operations will be conducted away from the coastal areas and thus will not occur near seabird rookeries. The helicopter pilot will be instructed to avoid any other wildlife in order to minimize the adverse effect from the helicopter noise and movement upon the wildlife resources in the area. Based on the available geologic data, encountering a geo- thermal resource during drilling of the small-diameter well is anticipated but not certain. All standard Procedures for drilling, casing, cementation, and blowout prevention will be followed during the proposed drilling operations. If a resource is encountered, the flow of the resource will be con- trolled by adherence to standard Procedures and safe drilling Practices. Please see Section V for the emergency contingency Plan. Drilling of the well will cease once sufficient geo- thermal resource is encountered. To establish the quality and extent of the geothermal resource, Republic must flow-test the well (and the temperature gradient hole, should it encounter a resource). Flow-testing the well (and the temperature gradient hole) will require the temporary discharge of geothermal fluids into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data col- lected during the 1982 exploration activities gives Republic the ability to estimate the chemical and Physical characteris- tics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the pro- posed geothermal fluid discharge can be conducted in a Manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic, and/or its subcon- tractor, will also undertake Monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. Approval of a Short-Term Water Quality Variance for the flow-test discharge to the Makushin Valley river is being requested from the Alaska Department of Environmental Conservation. Republic has received verbal communication that the Variance will be issued. The variance request has also been reviewed by the Alaska Department of Fish and Game. Republic has received written determination from the ADFG that a Habitat Protection Permit will not be required for the testing operations. Upon completion of drilling and testing of the small- diameter well, a 6-inch valve will be used to secure the well. A decision about plugging and abandonment of the well cannot be made until the resource, if any, has been tested. If a geothermal resource has been encountered in the tem- perature gradient hole, then actions would be similar to those taken for the small-diameter well. Both sites will be cleaned up and will be returned as near as feasible to pre-drilling conditions. Iv. Emergency Action Procedures and Notification List If any emergency develops or is determined to be impend- ing, appropriate control procedures will be initiated. The specific procedures will vary greatly depending on the nature of the problem. Examples of possible emergencies are: a well control problem (well blowing steam, hot water or other well effluent with loss of means to shut-in or divert the flow): a spill of geothermal fluid: fire; accidents or injuries; etc. Regular communications will be maintained between the remote work site and the contracted helicopter service base facility on Unalaska. The work site will be equipped with a short wave radio and a sufficient number of signal repeaters will be installed to ensure capability of contacting emergency response authorities. Daily reports of activity at the work site will be required, and if such report is not received or communications are not available, authorities will be put on alert for possible problems. A. Injury Accidents First aid supplies will be available at the work site and will include equipment for emergency treatment of traumatic injuries and a Stokes Splint Stretcher or comparable basket-type litter suitable for air-lifting. Injured workers will be air-evacuated by helicopter to the nearest medical aid facility: Tlliuliuk Family and Health Services, Inc. Box 144 Unalaska, Alaska 99685 (907) 581-1202 The helicopter will be stationed at camp or the Dutch Harbor Airport during operations. If the helicopter is disabled for any reason, then the Unalaska Police would be contacted for assistance: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 In the event that a seriously injured worker could not be timely air-evacuated because of inclement weather or mechanical problems, an attempt would be made to trans- port the injured worker by litter to an accessible area for air or water transport to the regional medical aid facility. Injured workers requiring treatment unavailable at the medical aid facility will be air-transported by com- mercial air carriers to a full-service hospital in Anchorage, Alaska. Commercial air carriers with regularly scheduled flights from Unalaska to Anchorage include: Reeve Aleutian Airlines Dutch Harbor Airport (907) 581-1380 Air Pac Airlines Dutch Harbor Airport (907) 581-1531 B. Fire Fire extinguishers will be provided at the site. uncontrolled fire will be reported to the local Fire Department: Any City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 c. Security In the event of any disturbance or threat, local police authorities would be notified as soon as possible: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 D. Well Control All prescribed safety practices and procedures will be followed. All members of the drilling crew will per- form duties assigned for the specific purpose, following specified safety practices. Field supervisory personnel will contact the Manager, Operations and consult with him as to any further or supplemental steps which may be necessary or advisable with regard to control of the well: Mr. Richard E. Yarter, P.E. Manager, Operations Republic Geothermal, Inc. 11823 East Slauson Avenue Santa Fe Springs, CA 90607 (213) 945-3661 E. Emergency Notifications In the event of any emergency, the Operations Supervisor at the site will notify the Manager, Operations as soon as possible. The Manager, Operations will: 1. Brief his immediate supervisor (Vice President, Production) and. the Project Manager (Manager, Exploration) of the situation and course of action underway: Mr. Don A. Campbell Vice President, Production Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 Mr. Gerald W. Huttrer Project Manager Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 a4 The Project Manager will advise and consult the Vice President, Land, or the Manager, Environmental Affairs, as soon as practicable: Mr. Timothy M. Evans Vice President, Land Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 -ll- Dr. Dwight L. Carey Manager, Environmental Affairs Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 3. If an employee is injured while on the job, the Project Manager will also notify the corporate safety office as soon as practicable. Dr. Terry R. Thomas Safety Administrator Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 4. The Vice President, Land, or Republic's environmental and safety personnel will notify as soon as possible the following regulatory agencies, as necessary: U.S. Fish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 (907) 592-2406 Mr. Fred Zeillemaker Alaska Department of Natural Resources 555 Cordova Street Pouch 7-005 Anchorage, Alaska 99510 (907) 276-2653 Mr. David Hedderly-Smith Alaska Department of Environmental Conservation 437 E. Street, Second Floor Anchorage, Alaska 99501 (907) 274-2533 Mr. Carl Harmon Mr. Robert Flint Alaska Department of Fish and Game 333 Raspberry Road Anchorage, Alaska 99502 (907) 344-0541 Mr. Denby Lloyd Mr. Kim Sundberg -12- St Pau ‘BO Si. George EXHIBIT c The Aleut Corporation 7 2550 Denali ¢ Suite 900 * Anchorage, Alaska 99503 l co. Phone (907)-274-1506 wo % Wea Se aR Mom March 4, 1982 Akutan Mr. Gerald W. Huttrer BECEIVED Republic Geothermal, Inc. 11823 East Slauson Avenue Maw G & 1982 Santa Fe Springs, California 90670 Dear Mr. Huttrer: The Aleut Corporation is a regional corporation organized under the Alaska Native Claims Settlement Act (ANCSA) of 1971. The Aleut Corporation has selected the surface and subsurface rights to the following townships, on Unalaska Island, as part of its entitlement under section 14 (h)(8) ANCSA: Township 71 South, Ranges 118 and 119 West of the Seward Meridian Township 72 South, Ranges 118 and 119 West of the Seward Meridian Township 73 South, Ranges 119 and 120 West of the Seward Meridian The corporation has no objection to the geothermal exploration activities on these lands, as proposed by the Alaska Power Authority and conducted by Republic Geothermal, Inc. of Santa Fe Springs, California; Dames & ‘ Moore of Anchorage, Alaska; and their associated subcontractors. However, we assume that Republic Geothermal will obtain all the necessary permits for the exploration activities and will follow appropriate engineering and environmental protection practices in their exploration. Furthermre, we expect that the exploration will be conducted with respect for the aesthetic and environmental qualities of the area: this specifically includes the mintenance of clean camps and the proper disposal of solid and liquid wastes. Sincerely, THE AJ CORPORATION Lo Gn Wayne F.| Lewis Land Director WFL/ jh Appendix N-1l Letter to Alaska Department of Fish and Game April 21, 1983 REPUBLIC GEOTHERMAL. INC. 11623 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TW. 10-586-1 7 13) 945-3561 xX 910 696 April 21, 1983 (213) 945-366 Mr. Kim Sundberg Alaska Department of Fish and Game Habitat Division 333 Raspberry Road Anchorage, Alaska 99502 Dear Mr. Sundberg: Republic was granted Temporary Water Use Permit 82-12 by the Alaska Department of Natural Resources (ADNR) for a temporary appropriation of 30,000 gallons per day, from unnamed creeks on Unalaska Island for geothermal temperatrue gradient hole drilling operations to be conducted during the summer field seasons of 1982 and 1983. Your department reviewed the permit application and made a Getermination that a Habitat Protection Permit was not necessary for the proposed appropriation activities. For reasons that are explained in the attached letter, Republic is currently requesting the ADNR to review TWP 82-12 to confirm its coverage of the proposed 1983 drilling operations. Because of your agency's original determination, Republic believes it appropriate that your agency also review the information contained in the attached letter to confirm that no Habitat Protection Permit is required for the proposed 1983 water appropriation. This determination would be in addition to the determination your agency has already made that no Habitat Protection Permit is required for the testing operations proposed by this project. Should you have any questions about this project or our request, please do not hesitate to contact me at the above address and phone number, or our subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova Street, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Tawna J. Nicholas Senior Environmental Planner REPUBLIC GEOTHERMAL. INC, 11623 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFCRNIA 90670 TWX 910-586-1696 (213) 945-366 April 14, 1983 Mr. Arnold van Horn Alaska Department of Natural Resources Pouch 7-005 323 East Fourth Avenue Anchorage, Alaska 99510 Dear Mr. van Horn: This letter requests your review of Temporary Water Use Permit 82-12, which was issued May 17, 1982 for a temporary appropriation of 30,000 gallons per day from unnamed creeks on Unalaska Island for temperature gradient hole drilling oper- ations to be conducted during the summer field seasons of 1982 and 1983. Under this permit, in 1982 Republic drilled three 1500-foot temperature gradient holes, as proposed in the Original application. Operations were conducted in accordance with the conditions of TWP 82-12. During the summer field season of 1983, Republic proposes to drill an additional 2000-foot temperature gradient hole and a 3000- to 4000-foot small-diameter geothermal resource exploratory well. Figure l is attached to show the location of the Proposed hole and well. The 1983 operations will be very similar to the temper- ature gradient hole operations conducted in 1982, with two exceptions. The first exception is that a slightly larger continuous wireline coring rig will be used due to the greater depth to be drilled; however, the amount of water needed for drilling will not exceed the 30,000 gallons per day temporary appropriation. The second exception is that the small-diameter well is to be drilled with the intention of encountering the geothermal resources in excess of 120°C that were tentatively iden- tified during the 1982 exploration activities. If the resources are encountered, the well will be flow-tested to establish the quality and extent of the geothermal resource. According to AS 41.06.050-41.06.060, we understand that no appropriations permit is required for producing this geo- thermal fluid. However, Republic has already requested a Short-Term Water Quality Variance from the Alaska Department REPUBLIC GEOTHERMAL. INC. Mr. Arnold van Horn April 14, 1983 Page Two of Environmental Conservation and has received verbal commu- nication that the Variance will be issued. We have also received a written determination from the Alaska Department of Fish and Game that a Habitat Protection Permit will not be required for the testing operations. Since the proposed 1983 field operations were not actually a part of the original application, Republic requests your review of the information contained in this letter to determine if the existing TWP 82-12 is sufficient for the proposed 1983 operations. If it is not, we request that you issue an appropriation permit to cover the 1983 operations. Republic would be happy to supply any additional information which may be necessary for your determination. In addition, although the Alaska Department of Fish and Game last year determined that the operations authorized under TWP 82-12 did not require a Habitat Protection Permit, we have sent to them a copy of this letter so that they may also review the request. Should you have any questions about this project or our request, please do not hesitate to contact me at the above address and phone number, or our subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova Street, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, 7 aura G Nachstos Tawna J. Nicholas Senior Environmental Planner TIN:clj Attachment cc: S. Grabacki- D&M K. Sundberg - ADFG FIGURE 1 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND SCALE IN FEE ee eS Vie 000 @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 =a O TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) oO SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 (J TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS Appendix N-12 Revised Application for a Food Service Permit submitted to Alaska Department of Environmental Conservation REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX 910-586-1696 (213) 945-2661 May 3, 1383 Mr. Bruce Erickson Alaska Department of Environmental Conservation 437 E Street, Suite 200 Anchorage, Alaska 99501 Dear Mr. Erickson: Please find enclosed an Application for a Food Service Permit for a temporary base camp at Makushin Volcano on Unalaska Island. The operations proposed this year do not differ from operations approved last year under Eating and Drinking Establishment Permit No. 82-900-80. Specifically, the food service operations will be conducted by the same subcontractor, Production Services, Inc. of Anchorage. The operation will again be temporary (approximately three months) and will serve approximately twelve people. The base camp is to be located at the same remote location as last year, above the 1,000-foot elevation on the flanks of Makushin Volcano of Unalaska Island. The purpose of the camp is to support geothermal exploration operations. Republic Geothermal is working under contract with the Alaska Power Authority to conduct the geothermal exploration. Republic currently anticipates commencing the set-up of the camp by May 19. If you have any questions, please do not hesitate to contact me at the above address and phone number, or our subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 We appreciate your review of this application. Sincerely, uma fy Nicitaa Tawna J. Nicnolas Senior Environmental Planner FIGURE 1 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND AGI ol48 © TEMPERATURE GRADIENT HOLE COMPLETED 1982 oO TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) O- SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 ( TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS Appendix N-13 Letter from Alaska Department of Natural Resources . May 16, 1983 STATE OF ALASIA /oreemu DEPARTMENT OF NATURAL RESOURCES MINERALS AND ENERGY MANAGEMENT Pouch #865 7- O34 Anchorage, Alaska 99510 May 16, 1983 Mr. Dwight Carey Republic Geothermal, Inc. 11823 East Slauson Avenue Santa Fe Springs, California 90670 Dear Mr. Carey: | sent you a copy of the geothermal drilling and conservation regulations (11 AAC 87.010-290) via DHL on May 12, 1983. As | discussed with you in our phone conversations, these regulations were recently adopted and became effective May 8, 1983. The regulations require information in addition to that provided in your submittals of February 24 and April 15, 1983. | have already discussed with you the need for more detailed information concerning blowout prevention equipment, diverter system, and the pumping and drilling fluids system. Please review these regulations and provide our office with the required information not previously submitted. If compliance with specific regulations is not possible, please provide information in support of the appropriate substitutions or deletions. As | have requested earlier by telephone, please provide information pertaining to the specif- ications and depth capability for the Longyear 44 drilling rig. | have enclosed the application for a geothermal drilling permit. Please complete this form and return it with the $100 filing fee made payable to the Department of Revenue. A drilling bond in the amount of $100,000 for a single well or a blanket bond of $200,000 will also be necessary and must be filed before drilling operations may commence. Sincerely, foot Ted J. Bond Petroleum Engineer OMEM 24-83 DNR No. 10-109 STATE OF ALASKA CEPARTMENT OF NATURAL RESDLRCES PERMIT TO ORILL A GEOTHERMAL VELL 11 ALC 87.030 and 11 AAC 87.070 la. Type of Work: Drill Ib. Type of Well: Exploratory 2. Well Name ard Nunber Redhill Prod.ction _ Deepen Field and Pool 4, Name of Lardowner or Lessee: Address: 5. Serial No. & Legal Description of Parcel ard Well Location: 6. Location of well at surface: 7. Elevation in feet (indicate refererce at top of proposed producirg interval: - poirt, i.e. kb, df, etc.) . at total depth: 8. Elevatio of grourd in feet (relative to sea leel): . Proposed suud date: 10. Bord irfommaticn - Type: Number : Anosrt: ll. Oistarce and direction from nearest town: 12. Distarce to nearest property or lease line: 13. Distarce to nearest or completed well: 14. If a deviated well (see 11 AAC 87.150) - Kick-off poirt ; Mex. hole argle 15. Articipated pressures in psig - at surface sats ft TD (TW) 16. Proposed Casing, Liner, ard Cemertirg Program (11 AAC 87.120) SIE CASING AND LINER SETTING OEPTH GANTITY © CEMNT. Hole Casing Weight Grade Coplirg Leuth © TP TO M BM TWO (irclide stage data) \ Y. Describe proposed drilling program: 18. Describe proposed freswater aquifer protection program: 19. Describe progran to ensure pressure control and blowout prevention (11 AAC 87.120): 20. I hereby certify that the faregoirg is true ard correct to the best of my knowledge: Signed Title Cate Oooo EW FRR CMLY—“‘(‘#’CSNSNNNNSSSOCOCONSCOCSC“‘“NNSNSNS Semples required: yes no_ Mud log required: yes__ no _ Approval Date Directioral Survey required: yes ro __ PI Number Pemit Nurber Appendix N-14 Letter to Alaska Department of Fish and Game May 31, 1983 800 Cordova, Suite 101 Dames & Moore | 27 Bes sor es —— Telex: 090-25227 Cable address: DAMEMORE May 31, 1983 Alaska Department of Fish & Game Habitat Division, Region IV 333 Raspberry Road Anchorage, AK 99502 Attention: Mr. Denby S. Lloyd Gentlemen: As you know, Dames & Moore will monitor the flow-testing of the geothermal well drilled by Republic Geothermal, Inc. (RGI) under the 1983 phase of Alaska Power Authority's Unalaska Geothermal Exploration. As part of this effort, we propose to install up to four temporary staff gauges in Makushin Valley River. The objective of the staff gauges is to allow RGI to ensure that the river has sufficient flow to dilute the effluent, as estimated in our letter of March 1, 1983. We would install the staff gauges in mid-June and remove them in August or September 1983. We would place the gauges at MV station (baseline sampling in 1982, monitoring in 1983), and at up to three other locations upstream, depending on accessibility. No other alterations to our proposed 1983 program are anticipated. Please inform us if your office has any objection to our proposed installation of these gauges. Thank you for your review of our plans. Sincerely, DAMES, & MOORE fe z ie: c nT. Grabacki t Manager a je STG:dg xe? Dwight Carey, RGI; j APPENDIX O CORRESPONDENCE WITH NATIVE ALASKA CORPORATIONS FOR 1983 FIELD OPERATIONS Appendix O-1 Letter to Ounalashka Corporation August 26, 1982 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS, CALIFORNIA 90670 TWX . 910.586.1696 (213) S453661 August 26, 1982 Mr. Vincent M. Tutiakoff, Sr. President Ounalashka Corporation P. O. Box 149 Unalaska, AK 99685 Dear Mr. Tutiakoff: On March 22, 1982, the Ounalashka Corporation granted permission to Republic Geothermal, Inc. and its subcontractors to conduct geothermal exploration activities, under contract to the Alaska Power Authority, on certain lands selected by or conveyed to the Corporation on Unalaska Island. A copy of your letter granting this permission is attached. It has now become apparent that, in order to safely and effectively conduct the geothermal exploration activities, we may need to temporarily expand our operations beyond those six : townships originally discussed. Therefore, Republic hereby . requests the permission of the Ounalashka Corporation to con- duct geothermal exploration activities on certain lands within the following townships which may have been selected by or conveyed to the Corporation: Township 71 South, Ranges 119, 118, and 117 West of the Seward Meridian Township 72 South, Ranges 121, 120, 119, 118, and 117 West of the Seward Meridian Township 73 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian : Township 74 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian These lands include all lands surrounding Makushin Volcano, which forms the northwest portion of Unalaska Island. We expect that the major geothermal exploration operations will still be conducted within the original six townships, and that only support activities may occur within the expanded area. In addition to conducting certain geological, engineering and environmental activities outside of the original six town- ships, Republic may need to construct a temporary road to the REPUBLIC GEOTHERMAL, INC. Mr. Vincent M. Tutiakoff, Sr. August 26, 1982 Page 2 site of the deep geothermal resource well, to be drilled in 1983. Therefore, Republic also requests that the Ounalashka Corporation grant to the Alaska Power Authority and Republic Geothermal, Inc. a nonexclusive, two-year easement of ingress and egress up Glacier Valley, Driftwood Bay valley, and Makushin Valley, as shown on the attached map, for the purpose of constructing a temporary road for access to and from the geothermal exploration area. Only one road would be con- structed; however, it is impossible to determine which of the alternative wells will be drilled and which road access might be necessary until all geologic, environmental, and engineer- ing data now being collected are evaluated this winter. Republic and its subcontractors will continue to conduct the project only with all proper permits from the appropriate state and federal agencies and with due regard for the envi- ronmental and socioeconomic concerns of the Ounalashka Corpo- ration. Both Republic and its subcontractors will work to maintain open communications with the Ounalashka Corporation, and will conduct our operations on these lands in compliance with your previously stated requirements. ee : Please signify your agreement to this request and grant said nonexclusive easement by signing in the space provided and returning the signed letter to us. Should you have any questions regarding this request, or the project itself, please do not hesitate to call... - - ia Sincerely, - G. W. Huttrer Manager - Exploration Attachment AGREED: : : a . OUNALASHKA CORPORATION By: Vincent M. Tutiakoff, Sr. Date President cc: P. DeJong W. Lewis D. Carey RECEIVED OUNALASHKA CORPORATION maR 29 1982 TO REPUBLIC GEOTHERMAL, INC.: The Ounalasnka Corporation is a village corporation organized under the Alaska Native Claims Settlement Act (ANCSA) of 1971. The Ounalashka Corporation has selected the surface rights to the following townships, on Unalaska Island, as part of entitlement under ANCSA: Township 71 South, Ranges 118 and 119 West of the Seward Meridian Township 72 South, Ranges 118 and 119 west of the Seward Meridian Township 73 South, Ranges 119 and 120 west of the Seward Meridian The corporation has no objection to the geothermal explo- ration activities on these lands, as Proposed by the Alaska Power Authority and conducted by Republic Geothermal, Inc. of Santa Fe Springs, California; Dames & Moore of Anchorage, Alaska; and their associated subcontractors. However, we assume that Republic Geothermal will obtain all the necessary permits for the exploration activities and wili follow appro- priate engineering and environmental protection practices in their exploration. Furthermore, we expect that the explora- tion will be conducted with respect for the aesthetic and environmental qualities of the area: this specifically in- cludes the maintenance of clean camps and the proper disposal of solid and liquid wastes. Sincerely, OUNALASHKA vey : VoecceatI w Lea lighr— Vincent M. Tutiakoff President r UNALASKA GEOTHERMAL EXPLORATION PROJECT POTENTIAL DEEP EXPLORATORY WELLSITES AND ROAD ACCESS CORRIDORS a EL TOT LRT RES OER PE EEO 1) CinGeae or . N Cape Cheertul, 2's Wistove a ete an « (\ DRIFTWOOD BAY ACCESS CORRIDOR x - . 4! Hichop PLY sess iF aE Wife fe . Me abe: ae x ‘1 ) Makufhin Volchtno Cane 24 Kovrinhha fe. GLACE VALLEY ACCESS CORRIDOR § + Makunhin, aa ii i. A bettonl 7 “yt < ‘Makushin, NOW “Pr. woe EY SCALE Mak ushin, “Ru u eee os Cathedrat RL wen Appendix 0-2 Letter to Aleut Corporation August 26, 1982 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX . 910.586.1696 (213) 9453661 August 26, 1982 Mr. Wayne F.. Lewis Land Director Aleut Corporation 2550 Denali Street, Suite 900 I Anchorage, AK 99503 - Dear Mr. Lewis: On March 4, 1982, the Aleut Corporation granted permission to Republic Geothermal, Inc. and its subcontractors to conduct geothermal exploration activities, under contract to the Alaska Power Authority, on certain lands selected by or con- veyed to the Corporation on Unalaska Island. A copy of your letter granting this permission is attached. It has now become apparent that, in order to safely and effectively conduct the geothermal exploration activities, we may need to temporarily expand our operations beyond those six townships originally discussed. Therefore, Republic hereby requests the permission of the Aleut Corporation to conduct geothermal exploration activities on certain lands within the following townships which may have been selected by or con- veyed to the Corporation: Township 71 South, Ranges 119, 118, and 117 West of the Seward Meridian : Township 72 South, Ranges 121, 120, 119, 118, and 117 West of the Seward Meridian Township 73 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian Township 74 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian These lands include all lands surrounding Makushin Volcano, which forms the northwest portion of Unalaska Island. We expect that the major geothermal exploration operations will still be conducted within the original six townships, and that only support activities may occur within the expanded area. In addition to conducting certain geological, engineering and environmental activities outside of the original six town- ships, Republic may need to construct a temporary road to the REPUBLIC GEOTHERMAL, INC. Mr. Wayne F. Lewis August 26, 1982 Page 2 site of the deep geothermal resource well, to be drilled in 1983. Therefore, Republic also requests that the Aleut Corporation grant to the Alaska Power Authority and Republic Geothermal, Inc. a nonexclusive, two-year easement of ingress and egress up Glacier Valley, Driftwood Bay valley, and Makushin Valley, as shown on the attached map, for the purpose of constructing a temporary road for access to and from the geothermal exploration area. Only one road would be con- structed; however, it is impossible to determine which of the alternative wells will be drilled and which road access might be necessary until all geologic, environmental, and engineer- ing data now being collected are evaluated this winter. “Republic. and its subcontractors will continue to conduct the project only with all proper permits from the appropriate state and federal agencies and with due regard for the envi- ronmental and socioeconomic concerns of the Aleut Corpora- tion. Both Republic and its subcontractors will work to maintain open communications with the Aleut Corporation, and ‘will conduct our operations on these lands in compliance with your previously stated requirements. Please signify your agreement to this request and grant said nonexclusive easement by signing in the space provided and returning the signed letter to us. Should you have any questions regarding this request, or the project itself, please do not hesitate to call. _Sincere LL, G. W. KELOD - Manager - Exploration Attachment AGREED: ALEUT CORPORATION By: Wayne F. Lewis Date Land Director . cc: P. DeJong V. Tutiakoff, Sr. D. Carey 2 DO 3 Searge wesontagoon asf pn Lind Sano = +. & ide Fase Pass Tne Aleut Corperation we Awutan 7 2550 Denali * Suite 900 + Anchorage, Alaska 99503 CP on ma | Phone (907)-274-1506 Unaiions CO so a » oe Xow & Fi VAS i o March 4, 1982 ae ung | Mr. Gerald W. Huttrer RECEIVED Republic Geotherml, Inc. : 11823 East Slauson Avenue Maa G & 1$82 Santa Fe Springs, California 90670 Dear Mr. Huttrer: The Aleut Corporation is a regional corvoration organized under the Alaska Native Claims Settlement Act (ANCSA) of 1971: The Aleut Corporation has selected the surface and subsurface rights to the following townships, on Unalaska Island, as part of its entitlement uncer section 14 (h)(8) ANCSa: Township 71 South, Renges 118 and 119 West of the Seward Meridian S 118 and 119 West o bh Township 72 South, Ran ‘8 the Seward Meridian Township 73 South, Ranges 119 and 120 West of the Seward Meridian ‘ The corporation has no odjection to the geothermal exploration activities on these lands, as proposed by the Alaska Power Authority and conducted by Republic Geothermal, Inc. of Santa Fe Springs, California; Dames & Moore of Anchorage, Alaska; and their associated subcontractors. However, we assume that Republic Geothermal will obtain all the necessary permits for the exploration activities and will follow appropriate engineering and environmental protection Practices in their exploration. Furthermore we expect that the exploration will be conducted with respect fcr the aesthetic and environmental Qualities of the area: <his svecifically includes the maintenance of clean camps and the proper disposal of solid and liauid wastes. UNALASKA GEOTHERMAL EXPLORATION PROJECT POTENTIAL DEEP EXPLORATORY WELLSITES AND ROAD ACCESS CORRIDORS DELS AEP TLR RO A ICS SEBO CEE | saath en ede trina oreetetaee emcees ventas aeaeniti deed A elle lie : y Be Cape Checitu, ft he ' ahs Wislowy, iret Sie 9 7 “ACCESS CORRIDOR il «i llead 1 Meedte th YOU e a Oppo 4g lt ( i i Makubhin Volcano Me? All (iia ate, x P af! | lle POTENTIAL DEERE Cane bas: WELL SITES Kovrithha pep FN : AUS " Gs NLS los eynery Valcune Hoy Cus 2° NE GLACIER VALLEY > ACCESS CORRIDOR § * \ Makunhin, #6 Ye ee eri bal . Fait "AL Z aye fay ANE alta Noni Eales ee Tie |e SCALE Makushin Roy ew WH ies Cathedral RMS” 0 1 2 3 a § 6 MILES 3 Mice Rigs Hie ee bse Humplack May 2) sy ak ees CO Portage) 4. ret bye Appendix 0-3 Letter from Aleut Corporation September 3, 1982 REPUBLIC GEOTHERMAL, INC. 11623 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX . 910.586.1696 (213) Sa253661 August 26, 1982 g ~ Ec ery Mr. Wayne F. Lewis SE 2p Land Director ° 8 199 Aleut Corporation e 2550 Denali Street, Suite 900 Anchorage, AK 99503 Dear Mr. Lewis: On March 4, 1982, the Aleut Corporation granted permission to Republic Geothermal, Inc. and its subcontractors to conduct geothermal exploration activities, under contract to the Alaska Power Authority, on certain lands selected by or con- veyed to the Corporation on Unalaska Island. A copy of your letter granting this permission is attached. It has now become apparent that, in order to safely and effectively conduct the geothermal exploration activities, we May need to temporarily expand our operations beyond those six townships originally discussed. Therefore, Republic hereby requests the permission of the Aleut Corporation to conduct geothermal exploration activities on certain lands within the following townships which may have been selected by or con- veyed to the Corporation: Township 71 South, Ranges 119, 118, and 117-West of the Seward Meridian Township 72 South, Ranges 121, 120, 119, 118, and 117 West of the Seward Meridian Township 73 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian Township 74 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian These lands include all lands surrounding Makushin Volcano, which forms the northwest portion of Unalaska Island. We expect that the major geothermal exploration operations will still be conducted within the original six townships, and that only support activities may occur within the expanded area. In addition to conducting certain geological, engineering and environmental activities outside of the original six town- ships, Republic may need to construct a temporary road to the REPUBLIC GEOTHERMAL, INC. Mr. Wayne F. Lewis August 26, 1982 Page 2 site of the deep geothermal resource well, to be drilled in 1983. Therefore, Republic also requests that the Aleut Corporation grant to the Alaska Power Authority and Republic Geothermal, Inc. a nonexclusive, two-year easement of ingress and egress up Glacier Valley, Driftwood Bay valley, and Makushin Valley, as shown on the attached map, for the purpose of constructing a temporary road for access to and from the geothermal exploration area. Only one road would be con- structed; however, it is impossible to determine which of the alternative wells will be drilled and which road access might be necessary until all geologic, environmental, and engineer- ing data now being collected are evaluated this winter. Republic and its subcontractors will continue to conduct the project only with all proper permits from the appropriate state and federal agencies and with due regard for the envi- ronmental and socioeconomic concerns of the Aleut Corpora- tion. Both Republic and its subcontractors will work to maintain open communications with the Aleut Corporation, and will conduct our operations on these lands in compliance with your previously stated requirements. Please signify your agreement to this request and grant said nonexclusive easement by signing in the space provided and returning the signed letter to us. Should you have any questions regarding this request, or the project itself, please do not hesitate to call. iS Sincere J c G. W. Hdttrer Manager - Exploration Attachment AGREED: ALEUT CORPORATION le By: oo ee 3 Bert 5, Vist Wayne F. \Lewis ‘Date Land Director cc: P. DeJong V. Tutiakoff, Sr. D. Carey Appendix 0-4 Letter .from Ounalashka Corporation December 12, 1982 REPUBLIC GEOTHERMAL, INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 TWX . 910.386.1696 (213) 945.3661 August 26, 1982 Mr. Vincent M. Tutiakoff, Sr. President Ounalashka Corporation P. O. Box 149 Unalaska, AK 99685 Dear Mr. Tutiakoff: On March 22, 1982, the Ounalashka Corporation granted permission to Republic Geothermal, Inc. and its subcontractors to conduct geothermal exploration activities, under contract to the Alaska Power Authority, on certain lands selected by or conveyed to the Corporation on Unalaska Island. A copy of your letter granting this permission is attached. It has now become apparent that, in order to safely and effectively conduct the geothermal exploration activities, we may need to temporarily expand our operations beyond those six townships originally discussed. Therefore, Republic hereby requests the permission of the Ounalashka Corporation to con- duct geothermal exploration activities on certain lands within the following townships which may have been selected by or conveyed to the Corporation: Township 71 South, Ranges 119, 118, and 117 West of the Seward Meridian Township 72 South, Ranges 121, 120, 119, 118, and 117 West of the Seward Meridian Township 73 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian Township 74 South, Ranges 122, 121, 120, 119, and 118 West of the Seward Meridian These lands include all lands surrounding Makushin Volcano, which forms the northwest portion of Unalaska Island. We expect that the major geothermal exploration operations will still be conducted within the original six townships, and that only support activities may occur within the expanded area. In addition to conducting certain geological, engineering and environmental activities outside of the original six town- ships, Republic may need to construct a temporary road to the REPUBLIC GEOTHERMAL, INC. Mr. Vincent M. Tutiakoff, Sr. August 26, 1982 Page 2 site of the deep geothermal resource well, to be drilled in 1983. Therefore, Republic also requests that the Ounalashka Corporation grant to the Alaska Power Authority and Republic Geothermal, Inc. a nonexclusive, two-year easement of ingress and egress up Glacier Valley, Driftwood Bay valley, and Makushin Valley, as shown on the attached map, for the purpose of constructing a temporary road for access to and from the geothermal exploration area. Only one road would be con- structed; however, it is impossible to determine which of the alternative wells will be drilled and which road access might be necessary until all geologic, environmental, and engineer- ing data now being collected are evaluated this winter. Republic and its subcontractors will continue to conduct the project only with all proper permits from the appropriate state and federal agencies and with due regard for the envi- ronmental and socioeconomic concerns of the Ounalashka Corpo- ration. Both Republic and its subcontractors will work to. maintain open communications with the Ounalashka Corporation, and will conduct our operations on these lands in compliance with your previously stated requirements. Please signify your agreement to this request and grant said nonexclusive easement by signing in the space provided and returning the signed letter to us. Should you have any questions regarding this request, or the project itself, please do not hesitate to call. Sincerely, G. W. Huttrer Manager - Exploration Attachment AGREED: OUNALASHKA CORPORATION Lab </ i Lea 2-7-b2- Vincent M. President cc: P. DeJong W. Lewis D. Carey APPENDIX P PERMIT APPROVALS FOR 1983 FIELD OPERATIONS Appendix P-1l Letter from Alaska Department of Fish and Game March 8, 1983 ~ fo M4 4S IMAGE Pay it Ira \ HT AVE Hew BILL SHEFFIELD, GOVERNOR Pert g iv t SNS wipe Payjiliiems } Mu A ee, DEPART WENT OF FISH AN 333 Raspberry Road Anchorage, Alaska 99502 0383-IV=-21 March 8, 1983 Stephen T. Grabacki Dames & Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501. Dear Mr. Grabacki: Re: Short-term discharge of geothermal fluids to Makushin Valley River (Stream No. 302-31-10900) (All sections, T. 72 S., R. 121 We, S.M.) The Department of Fish and Game has reviewed your application for short-term (approximately four days) discharge of geothermal fluid to the upper reaches of the Makushin Valley River. This stream has been specified by the Commissioner as being important for the sDawning, rearing, and migration of anadromous fishes pursuant to AS 16.05.870(a), however the location of your proposed discharge is upstream of the limit of anadromous fish distribution @s specified in the "Atlas to the Catalog of Water Important to the Spawning, Rearing, and Migration of Anadromous Fishes." Pursuant to an agreement between the departments of Fish and Game and Environmental Conservation, the interests of the Department of Fish and Game regarding water quality will be incorporated in the permit you will receive from the Department of Environmental Conservation, or are addressed in State Water Quality Regulations (18 AAC 70.010-110). Therefore, vou will not need to obtain a permit from the Department of Fish and Game. We do however, expect vou to apprise this office immediately i initial chemical analyses of the geothermal fluids exhibit higher concentrations of dissolved solids than indicated in the request for short-term water quality variance submitted to the Department of Environmental Conservation, dated February 24, 1983. Stephen T. Grabacki -2- March 8, 1983 We appreciate the Opportunity to comment on your preposed operations, and your close coordination with the Department. We also request that you submit to us the results of your monitoring studies to be conducted during this coming field season. Sincerely, BY: -KTMBE? A. Sundbé¥q Projects Review Coordinator Habitat Division (907) 344-0541 cc: L. Dutton, ADNR K. Hudson, DMEM B. Martin, ADEC J. Low, FYP K. Griffin, ADF&G Appendix P-2 United States Fish and Wildlife Service Special Use Permit No. AI-83-27 2 U.S. GOVERNMENT PRINTING OFFICE: -1978—Z75-954 UNITED STATES DEPARTMENT OF THE INTERIOR U.S. Fish and Wildlife Service ALEUTIAN ISLANDS UNIT —___ ALASKA _MARITIME _____National Wildlife Refuge; SPECIAL USE PERMIT Permit numberSta. No. to be credited AI-83-27 Contract number Date March 28, 1983 Permittee (Name end address Timothy M. Evans, Vice President May 1S Awl” x 9 Republic Geothermal, Inc. From hau 19 33 11823 E. Slauson Ave., Suite 1 To se : 30 19 33 Santa Fe Springs, CA 90670 ph: (213) 945-3661 Purpose (Specify in detail privilege requested, or units of products invoived) To permit continuation of Republic Geothermal, Dames and Moore, and/or their subcontractors exploration for geothermal resource potential on the eastern flanks of Makushin Volcano on Unalaska Island in the Aleutian Islands (Exhibit A, Fig. 1&62).This permit is for the third stage of operations, specifically the drilling of one small diameter well and one deep temperature gradient hole (Exhibit A). A radio repeater site is also authorized. NY. Description (Specify unit numbers: meres and bounds: or other recognizable designations} Drill one S@inch (maximum) diameter geothermal resource exploration well to about 4,000' deep, drill one 8.5 inch (maximum diameter) temperature gradient hole to about 2,000' deep with two 12x20' tents and establish a portable base camp consisting of approximately four to six 12x20 foot sleeper tents, one 12x30 foot cook tent, one 15x30‘ shower/laundry tent and one outhouse(Exhibit A). A letter of non-objection has been submitted (Exhibit B). Amount of fee S____ NONE If nota fixed fee payment, specify rate and unit of charge: ([) Full payment Cc Partial payment-Balance of payments to be made as follows: Record of Payments Statement of compatibility: Operations planned in exhibit A and authorized by this permit are considered to be compatible with the objectives and management of the Aleutian Islands Unit of the Alaska Maritime National Wildlife Refuge. Special Conditions 1. All appropriate Federal and State Wildlife laws and regulations will be abided by. 2. Helicopter operations will be by most expeditious route to and from well sites, base camp and Unalaska/Dutch Harbor to avoid wildlife disturbance or harrassemnt. 3. Any discoveries of nesting birds or fox dens (including location, date and number) will be reported to the issuing office as convenient, but no later than September 30, 1983. 4. A copy of this permit and a copy of the Aleut Corporation letter of non-objection will be available on Unalaska Island during the period of use. 5S. Historical or archaeological sites, including burial caves, barabaras, or World War II facility remains, will not be disturbed. 6. Searching for, digging up, tampering with, disturbing, handling, or detinating World Wa: II ordinance or other military debris is prohibited. * (Special Conditions Continued on next page) This permit is issued by the U.S. Fish and Wildlife Service, and accepted by the undersigned, subject to the terms. covenan tgations. and reservations, expressed or implied therein, and to the conditions and require- Teverse side. | Issuing Officer sl a C. Fred Zeillemakes, Refuge ~ resident SPECIAL USE PERMIT CONDITIONS (continued) Permit No.: AI-83-27 Sta. No. : 74502 Date March 28, 198. 7. All litter and/or garbage and/or human waste will be removed or disposed of at authorized disposal sites or following procedures described in Exhibit A. 8. The U.S. Fish and Wildlife Service assumes no responsibility for accidents or injuries sustained during activities performed under this permit. 9. Any observations of unusual wildlife, including Aleutian Canada geese, will be reported to the issuing officer as convenient, but no later than September 30, 19¢ 10. Complete lists of all personnel, including estimated periods of camp occupancy and employer, performing under this permit will be kept current and provided to the issuing officer prior to Junel, 1983, and as revised. ll. The issuing officer will be notified when field work is completed and all : material is removed from all sites covered by this permit. Issuing Officer (signature and title) EFA Sc tlm ads C. Fred Zeillemaker, “Refuge Mana Date: Larry Calvert, USFWS, Anchorage John Martin, AMNWR, Homer, AK Vincent Tutiakof£, Ounalaska Corporation EXHIBIT A DESCRIPTION OF OPERATIONS ALASKA POWER AUTHORITY: UNALASKA GEOTHERMAL PROJECT Tie Introduction The Alaska Power Authority (APA) has contracted with Republic Geothermal, Inc. (Republic) to explore the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. Figure 1 is a vicinity map showing the location of Unalaska Island. Figure 2 is a map showing the location of the proposed exploratory operations on Unalaska Island. During the 1982 field season, Republic drilled three 1500-foot temperature gradient holes (D-1, Fox Canyon: E-1l, Base Camp; and I-l, Glacier Valley) which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic proposes to confirm the existence of the geothermal resource by drilling and testing one small- diameter geothermal resource exploration well, and to delineate the extent of the resource by drilling one additional deep temperature gradient hole (TGH). The 1982 operations were conducted under Special Use Permits Al-82-09 and AI-82-10. The 1983 operations are the subject of this permit application. II. Location of Proposed Operations The preliminary information from the 1982 temperature gradient hole operations has been integrated with the environ- mental, geological, and logistical data in order to choose the site for the small-diameter geothermal resource exploration well. The well site is to be located approximately 300 yards north of the 1982 base camp site (Figure 2). The proposed site for the 1983 temporary base camp is the same as the base camp site used during 1982 for the initial geophysical work and the temperature gradient hole operations. This camp will be used by all personnel. The temperature gradient hole is proposed to be located on the western plateau of Sugarloaf. Figure 2 shows an approximate location for the TGH, which is designated as A-1 and is commonly referred to as the Sugarloaf site. While the TGH is proposed to be located on the Sugarloaf plateau in the general vicinity of the site shown, the final location will be selected in the field based on geologic markers, logistical constraints, and water availability. Two TGH sites previously approved under Special Use Permit AI-82-10 (Alternative Sites A and B) were located on the Sugarloaf plateau, and the proposed siting area for TGH A-l is in the same general area as these two previously approved TGH sites. FIGURE 1 UNALASKA ISLAND VICINITY MAP DRIFTWOOD BAY SUMMER BAY MAKUSHIN VOLCANO A crac UNALASKA ISLAND MAKUSHIN MAKUSHIN BAY >« Base camp il © THERMAL GRADIENT HOLES 2 3 STUDY AREA SHOWN ON FIGURE 2 ry FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND ( SCALE IN FEET>S as 0 \1,000- 2,000 Ves @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 == O TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) o> SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 © TEMPORARY BASE CAMPSITE © AERIAL PHOTOGRAPH INDICATORS III. Discussion of Proposed Operations The currently proposed operations will be very similar to the temperature gradient hole operations conducted during the summer field season of 1982. The small-diameter geothermal recource exploration well and the temperature gradient hole will also be drilled using a continuous wireline coring rig. However, a slightly larger rig will be necessary because the small-diameter well will be drilled to a depth of 3,000 to 4,000 feet. The main differences are that the 1983 rig has a larger engine and a heavier mast than the 1982 rig. Figure 3 is a drawing of the type of tig which will be used. The rig will be transported by barge to Unalaska Island and then transported in sections by helicopter to and from the drill sites. The temperature gradient holes drilled in 1982 were drilled to a depth of 1,500 feet. The TGH Proposed to be drilled in 1983 will be drilled to a depth of approximately 2,000 feet, until additional drilling is precluded by weather, until drilling is terminated by budget limitations, or until a geothermal resource is encountered. The TGH May be drilled subsequent to the small-diameter well by the coring rig, or the TGH and the small-diameter well May be drilled con- currently with two wireline coring rigs of the same type. The latter alternative would decrease the possibility of not completing the TGH due to lack of time or bad weather. For further information regarding drilling procedures, Please see Section IV. : An area of approximately 30-feet by 50-feet will be leveled for each well as mecessary by hand labor or the use of lumber for the rig. A series of small mud pits or steel tanks will be used to collect the rock cuttings and to store the drilling fluid before it is recirculated. The drilling opera- tions will require approximately 500 gallons of water per day which will be obtained from snowmelt or a nearby rivulet and will be stored in a small tank on location. Figure 4 is a sketch of a typical small-diameter well and TGH site. When the small-diameter well and the TGH are each com- pleted, the cuttings and waste drilling fluid (drilling mud and/or water) will either be dried and the residue spread on the surface of the ground, or buried and covered with native soil depending upon the most environmentally appropriate disposal technique for the site. The amount of waste drilling fluid is likely to be less than 200 gallons since most of the drilling fluid generated during the drilling of both the small-diameter well and the TGH will be used to set the cement around the casing during well completion. Most of the rock cores will ultimately be sent to the Alaska Division of Geophysical and Geological Survey offices, to Republic for study, and to various agencies as samples. They will be boxed and transported from the site by helicopter. FIGURE 4 TYPICAL SITE PLAN (LAYOUT BASED ON AN AREA OF APPROXIMATELY 30'X650') DRILLING RIG 300 GALLON EQUIPMENT TENT SLEEPING TENT 10°X 15’ WATER TANK 12'X20° 12'X20° MUD PIT OR TANK 5'X10° ia a $ to aX w ac Oo oO (100‘+) HELICOPTER LANDING AREA ae Drilling operations for the small-diameter well should take approximately sixty-five days, and Operations for the TGH should take approximately thirty days. Drilling will continue 24 hours per day and will require two or three three-person drilling crews, one contract drilling foreman, a site Operations supervisor, a camp cook, and periodically one or two geologists, engineers, technicians or environmental scientists. Food and fuel will be purchased at Dutch Harbor to the greatest extent possible. The drill crews, camp cook, geologists, engineers, and environmental scientists will be housed at the temporary base camp. The helicopter and the pilot will be based at the camp. The helicopter mechanic will be quartered in Dutch Harbor, where various additional support personnel will be staying for short periods of time during the operations. The portable camp will consist of approximately four to six 12-foot by 20-foot sleeper tents, one 15-foot by 30-foot cook tent, one 15-foot by 30-foot shower and laundry tent, and @ portable outhouse. Two 12-foot by 20-foot sleeper/storage tents (or equivalent) will also be placed at the TGH site for use in bad weather. Garbage from the camp will be transported back to proper waste disposal facilities in Dutch Harbor, or will be treated and buried on site. Grey waste water will be disposed through an onsite pit or a leach line built by the camp construction company. Black waste water May go through a leach line system, may be placed in a pit and treated with lime, or may be dried and burned. A permit for waste disposal was obtained from the Alaska State Department of Environmental Conservation for the 1982 operations and is currently being renewed for the 1983 operations. : The drilling crew will be transported between the camp, the TGH site, and Dutch Harbor by helicopter. The crew will be helicoptered to the TGH site, but will likely walk from the camp to the site of the small-diameter resource exploratory well. Helicopter operations will be conducted away from the coastal areas and thus will not occur near seabird rookeries. The helicopter pilot will be instructed to avoid any other wildlife in order to minimize the adverse effect from the helicopter noise and movement upon the wildlife resources in the area. Based on the available geologic data, encountering a geo- thermal resource during drilling of the small-diameter well is anticipated but not certain. All standard procedures for drilling, casing, cementation, and blowout prevention will be followed during the proposed drilling operations. If a resource is encountered, the flow of the resource will be con- trolled by adherence to standard procedures and safe drilling Practices. Please see Section V for the emergency contingency Plan. Drilling of the well will cease once sufficient geo- thermal resource is encountered. To establish the quality and extent of the geothermal resource, Republic must flow-test the well (and the temperature gradient hole, should it encounter a resource). Flow-testing the well (and the temperature gradient hole) will require the temporary discharge of geothermal fluids into tributaries of the Makushin Valley river. Until a well is drilled and the geothermal resource tested, specific information regarding the chemistry and quality of the resource is unavailable. However, data col- lected during the 1982 exploration activities gives Republic the ability to estimate the chemical and physical characteris- tics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the pro- Posed geothermal fluid discharge can be conducted in a manner which will prevent adverse impacts to either the river's water quality or fishery resources. Republic, and/or its subcon- tractor, will also undertake monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. Approval of a Short-Term Water Quality Variance for the flow-test discharge to the Makushin Valley river is being requested from the Alaska Department of Environmental Conservation simultaneously with the request for approval of this application. The variance request will also be reviewed by the Alaska Department of Fish and Game. The variance request is attached to this application as Attachment I to Exhibit A. Please refer to this Attachment for details of the following: flow-test purpose, flow-test design, discharge characteristics, receiving water characteristics, potential impacts, and proposed Monitoring and mitigation measures. Upon completion of drilling and testing of the small- diameter well, a 6-inch valve will be used to secure the well. A decision about plugging and abandonment of the well cannot be made until the resource, if any, has been tested. If a geothermal resource has been encountered in the tem- perature gradient hole, then actions would be similar to those taken for the small-diameter well. Both sites will be cleaned up and will be returned as near as feasible to pre-drilling conditions. IV. Drilling Programs A. Small-Diameter Geothermal Resource Exploration Well 1. Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of S-inch diameter F-25 or J-55, 11.5 lb. casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.O.P., flow tee, and a rotating stripper head. Drill out cement using HQ (3.782") wireline cor- ing tools with mud or water as the circulating medium. Drill ahead to approximately 1,000 ft. Cement HQ (3 1/2") drill rod with casing shoe bit in hole at approximately 1,000 ft. Change over to NQ size (2.980") wireline coring tools. Core ahead until encountering reservoir or 3,000 ft. If production is encountered, run short flow test to obtain fluid sample and tem- peratures. If no reservoir is encountered, changeover to BQ (2.360") coring tools and core to approximately 4,000 ft. T.D. After reaching T.D. at the reservoir, 4,000 ft., or the rig capability Limit, conduct short flow test for collection of water sample for analysis to preceed longer flow test. While sample analysis is being conducted, rig down drilling equipment. Rig up flow line and wellhead for flow test. Assuming analysis of fluid sample collected in steps 4 or 5 permits, a more extensive flow test will be conducted. Note: Figure 5 is attached for a schematic dia- gram of the proposed casing program. FIGURE 5 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 4,000 FT. SMALL—DIAMETER GEOTHERMAL RESOURCE EXPLORATION WELL SURFACE Is 8 1/2” HOLE 5° CASING TO 150 FT. 150 FT. HQ (3.78") HOLE 1,000 FT.—— & HQ ROD CASING (3 1/2”) CEMENTED TO 1,000 + FT. NQ (2.98) HOLE . 3,000 + FT. COMPLETED OPEN HOLE BQ (2.36”) HOLE 4,000 = FT. WGI ol4g OR RIG CAPABILITY B. Temperature Gradient Hole l. Notes: Move in and rig up via helicopter Longyear-44 or equivalent core rig with fuel and supplies to location. Rotary drill 8-1/2-inch hole to approximately 150 feet using a water based, bentonite (clay) drilling mud as a circulating medium. Run and cement (with Class G cement) 150 feet of 5-inch diameter F-25 or J-55, 11.5 1lb., threaded and coupled casing. Wait for cement to cure at least 6 hours, then nipple up blowout prevention equipment (BOPE) consisting of a master valve, 6" B.O.P., and a stripper head. Drill out cement using a 4-1/4-inch rotary bit with mud or water as the circulating medium. Drill ahead as far as possible or until lost circulation or hole Problems force changeover to NQ size (2.980-inch diameter) wireline coring tools. After changeover, continue to core NQ or smaller size hole to total depth of approxi- mately 2,000 feet. Run 1 1/2-inch steel tubing to T.D. . (approximately 2,000 feet). Clabber mud with cement and circulate to fill the annulus. Fill the tubing with clean water and cap. Cement top 20 feet of annular space. Remove BOPE's, rig down, and move out drilling equipment. Cap tubing with threaded cap. Approximately seven to ten days after drilling Operations are completed, a temperature profile will be run on the well. a) Although encountering a resource is not expected while drilling to this depth, the following is a contingency plan in the event a potentially producible resource is encountered: 1) Before running 1 1/2-inch tubing, attempt limited flow test to mud tanks to clean the well and to acquire fluid samples for chemical analyses. Excess fluid may be returned to the TGH after sampling. -li- 2) After the test, run 1 1/2-inch tubing. Cement tubing from surface to T.D. Displace cement with water using latch-down wiper plug. 3) Remove BOPE's, rig down, and move out. Cap tubing with threaded cap. b) Pigure 6 is attached for a schematic dia- gram of the proposed casing progran. ec) To abandon the temperature gradient hole, cut the tubing and casing below ground level, plug the top 15 feet of the tubing with cement, and cover the hole with soil. V. Emergency Action Procedures and Notification List of the problem. Examples of Possible emergencies are: a well control problem (well blowing steam, hot water or other well effluent with loss of means to shut-in or divert the flow): a spill of geothermal fluid; fire; accidents or injuries; etc. Regular communications will be Maintained between the remote work site and the contracted helicopter service base facility on Unalaska. The work site will be equipped with a response authorities. Daily reports of activity at the work site will be required, and if such report is not received or communications are not available, authorities will be put on alert for possible problems. A. Injury Accidents First aid supplies will be available at the work site and will include equipment for emergency treatment of traumatic injuries and a Stokes Splint Stretcher or comparable basket-type litter suitable for air-lifting. Injured workers will be air-evacuated by helicopter to the nearest medical aid facility: Tlliuliuk Family and Health Services, Inc. Box 144 Unalaska, Alaska 99685 (907) 581-1202 -12- FIGURE 6 SCHEMATIC DIAGRAM OF PROPOSED CASING PROGRAM FOR 2,000 FT. TEMPERATURE GRADIENT HOLE SCREW CAP SURFACE CEMENT TOP 20FT. OF ANNULAR SPACE 8 1/2” HOLE 5’° CASING TO 150 FT. 150 FT. —- 1/2” GALVANIZED PIPE { , 1/2” AND/ OR NQ (2.98) HOLE oo CLABBERED MUD IN HOLE TO T.D. Lb SCREW CAP | 2,000 FT. _=="_ FGI o147 -13- The helicopter will be stationed at camp or the Dutch Harbor Airport during operations. If the helicopter is disabled for any reason, then the Unalaska Police would be contacted for assistance: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 In the event that a seriously injured worker could not be timely air-evacuated because of inclement weather or mechanical problems, an attempt would be made to trans- port the injured worker by litter to an accessible area for air or water transport to the regional medical aid facility. Injured workers requiring treatment unavailable at the medical aid facility will be air-transported by com- mercial air carriers to a full-service hospital in Anchorage, Alaska. Commercial air carriers with regularly scheduled flights from ‘Unalaska to Anchorage include: Reeve Aleutian Airlines Dutch Harbor Airport (907) 581-1380 Air Pac Airlines Dutch Harbor Airport (907) 581-1531 B. Fire Fire extinguishers will be Provided at the site. Any uncontrolled fire will be reported to the local Fire Department: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 c. Security In the event of any disturbance or threat, local police authorities would be notified as soon as possible: City of Unalaska Department of Public Safety Box 89 Unalaska, Alaska 99865 (907) 581-1233 D. Well Control All prescribed safety practices and procedures will be followed. All members of the drilling crew will per- form duties assigned for the specific purpose, following specified safety practices. Pield supervisory personnel will contact the Manager, Operations and consult with him as to any further or supplemental steps which may be necessary or advisable with regard to control of the well: Mr. Richard E. Yarter, P.E. Manager, Operations Republic Geothermal, Inc. 11823 East Slauson Avenue Santa Fe Springs, CA 90607 (213) 945-3661 E. Emergency Notifications In the event of any emergency, the Operations Supervisor at the site will notify the Manager, Operations as soon as possible. The Manager, Operations will: 1. Brief his immediate supervisor (Vice President, Production) and the Project Manager (Manager, Exploration) of the situation and course of action underway: Mr. Don A. Campbell Vice President, Production Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 930670 (213) 945-3661 Mr. Gerald W. Huttrer Project Manager Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 2. The Project Manger will advise and consult the Vice President, Land, or the Manager, Environmental Affairs, as soon as practicable: Mr. Timothy M. Evans Vice President, Land Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 Dr. Dwight L. Carey Manager, Environmental Affairs Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs. CA 90670 (213) 945-3661 If an employee is injured while on the job, the Project Manager will also notify the corporate safety office as soon as practicable: Dr. Terry R. Thomas Safety Administrator Republic Geothermal, Inc. 11823 E. Slauson Avenue Santa Fe Springs, CA 90670 (213) 945-3661 The Vice President, Land, or Republic's environmental and safety personnel will notify as soon as possible the following regulatory agencies, as necessary: U.S. Pish and Wildlife Service Box 5251 NAVSTA FPO Seattle, Washington 98791 (907) 592-2406 Mr. Fred Zeillemaker Alaska Department of Natural Resources 555 Cordova Street Pouch 7-005 Anchorage, Alaska 99510 (907) 276-2653 Mr. David Hedderly-Smith Alaska Department of Environmental Conservation 437 E. Street, Second Floor Anchorage, Alaska 99501 (907) 274-2533 Mr. Carl Harmon Mr. Robert Flint Alaska Department of Fish and Game 333 Raspberry Road Anchorage, Alaska 99502 (907) 344-0541 Mr. Denby Lloyd Mr. Kim Sundberg -1fe- ATTACHMENT I TO EXHIBIT A REPUBLIC GEOTHERMAL. INC. 11823 EAST SLAUSON AVENUE SANTA FE SPRINGS. CALIFORNIA 90670 VX 910-586-1696 (213) 945-3661 February 24, 1983 Mr. Robert C. Flint Alaska Department of Environmental Conservation Region C 437 "E" Street, Suite 200 Anchorage, Alaska 99501 Dear Mr. Flint: Republic Geothermal, Inc. requests approval of a Short-Term Water Quality Variance to allow the short-term disposal of limited quantities of geothermal fluids into tributaries of the Makushin Valley river on Unalaska Island. Republic, under contract to the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources. During the summer of 1983, Republic is planning to drill at least one well capable of encountering and testing the geothermal resources which were tentatively identified during the 1982 exploration activities. Testing of the geothermal resource will require flowing the well(s) and disposal of the Produced fluid into tributaries of the Makushin Valley river. specific information regarding the chemistry and guality of the resource is unavailable. However, data collected during the 1982 exploration activities gives us the ability to estimate the chemical and physical characteristics of the Makushin geothermal resource. Based upon these estimates and environmental baseline data also collected during the 1982 field season, Republic believes that the proposed discharge can be conducted in a manner which will prevent adverse impacts to either the river's water Quality or fishery resources. Republic will also undertake Monitoring of the river and the test flow to ensure the absence of impact to the river and the fishery resources. REPUBLIC GEOTHERMAL. INC. Mr. Robert C. Flint February 24, 1983 Page Two Attached is a more complete statement of this request for a Short-Term Water Quality Variance for the geothermal well flow test. Should you have any questions regarding this request, do not hesitate to contact us or Republic's environmental subcontractor's representative: Mr. Steve Grabacki Dames and Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 (907) 279-0673 Sincerely, Bwig. L. Carey Manager, Environmental Affairs DLC :clj Attachment cc: P. DeJong, APA S. Grabacki, Dem R. Mochnick, EPA (w/cover letter) K. Sundberg, ADFG (w/cover letter) REQUEST FOR SHORT-TERM WATER QUALITY VARIANCE ONALASKA GEOTHERMAL DRILLING PROJECT 1983 I. Applicant Republic Geothermal, Inc. 11823 E. Slauson Avenue, Suite One Santa Fe Springs, California 90670 (213) 945-3661 for Alaska Power Authority 334 West Fifth Avenue Anchorage, Alaska 99501 (907) 277-7641 II. Introduction Republic Geothermal, Inc., under a two-year contract with the Alaska Power Authority, is exploring the eastern flanks of Makushin Volcano on Unalaska Island for geothermal resources (Figure 1). During the 1982 field season Republic drilled three 1,500-foot temperature gradient holes which established the existence of elevated temperatures at relatively shallow depths. For the summer of 1983, Republic Proposes to confirm the existence of the geothermal resource by drilling and testing one small-diameter geothermal resource exploration well to a depth of 3,000 to 4,000 feet, and, if time and budget permit, to delineate the extent of the resource by drilling one additional temperature gradient hole to a depth of 2,000 feet (Figure 2). To establish the quality anc extent of the geothermal resource, Republic must flow-test the small-diameter well, which will require the temporary discharge of geothermal fluids into tributariés of the Makushin Valley river. Because of its depth, the temperature gradient hole may also encounter a geothermal resource. In this event, Republic also desires to flow-test the temperature gradient hole. III. Purpose of Provosed Discharcae aro sed biscnarge Flow-testing a geothermal resource well is necessary so that quantitative data regarding the well's Productivity Index (PI) and flow rate, the reservoir's transmissivity, and the physical and chemical parameters of the reservoir fluie itsel: can be ootained. Without this data, no realistic assessmen- can be made of a geothermal reservoir's viability as an enersy producer. This assessment of the Makushin reservoir is the primary objective of the two-year contract with the Alaska Power Authority. FIGURE 1 UNALASKA ISLAND VICINITY MAP DRIFTWOOD BAY SUMMER BAY MAKUSIIIN VOLCANO A vatiey’ UNALASKA ISLAND MAKUSHIN MAKUSHIN BAY >€ Base Camp tl © THEAMAL GRADIENT HOLES Peak & 3 STUDY AREA SHOWN ON FIGURE 2 : a mee FIGURE 2 LOCATION OF PROPOSED 1983 OPERATIONS ON UNALASKA ISLAND Oa ‘<>. (APPROXIMATE LOCATION: @ TEMPERATURE GRADIENT HOLE COMPLETED 1982 — © TEMPERATURE GRADIENT HOLE PROPOSED FOR 1983 (ACTUAL SITE TO BE DETERMINED IN FIELD) O- SMALL DIAMETER GEOTHERMAL RESOURCE EXPLORATORY WELL PROPOSED FOR 1983 CO] TEMPorary Base CAMPSITE © AERIAL PHOTOGRAPH INDICATORS Geothermal waters Produced from well flow tests can be either: 1) returned to the reservoir by injecting into another well drilled or converted for that purpose; 2) Gischarged into surface storage basins and allowed to evaporate or injected back into the Production well; or 3) discharged onto the surface and, in a controlled Manner, allowed to enter the groundwater or surface water systems. Por the Makushin Geothermal Project, no other well has been or will be drilled which would be available for injection of waste geothermal fluids. The previously drilled temperature gradient holes cannot be used for injection without a very expensive and time-consuming conversion Operation. Basins of a size sufficient to store the produced geothermal fluids would be quite large (20,000 cubic feet), and since no powered earth-moving machinery will be available at the site, almost impossible to construct. Construction of large storage basins would also potentially create Significant environmental impacts. In addition, the nearly continuous tainfall at the site makes evaporation of the produced fluids from storage basins highly unlikely. Although fluid stored in the basins could be filtered and injected back into the Production well, this process would be both costly and involve risks to the continued Productivity of the well. Thus, the most reasonable technique available for disposal of these waste geothermal fluids appears to be a controlled discharge of the Liquids into tributaries of the Makushin Valley river, as long as it can be demonstrated that this does not creates significant environmental impacts. IV. Well Flow Test Desien a ESE DESICON The geothermal well and temperature gradient hole will both be relatively small diameter, relatively shallow holes Grilled by a continuous wireline coring rig only slightly larger than that used to drill the temperature gradient during 1982. The geothermal well is designed to be drilled to @ maximum depth of approximately 4,000 feet and have a bottom=-hole diameter of approximately 2-1/2 inches (surface casing diameter of approximately 5 inches). The temperature gradient hole will be drilled to a cepth of approximately 2,000 feet, until a geothermal resource is encountered, or until drilling is terminated Sy budget or weather limitations, whichever occurs first. Drilling of the well will cease once sufficient geothermal resource is encountered. The well (or temperature gradient hole, should a resource be encountered) will then 5e lowed directly into the small a@rilling mud pit (about 100 cubic feet) for a very short period of time (about an hour) +o clean drilling muds, Grilling fluids, formation cuttings, and 2 other materials from the wellbore and Procucing formation. A sample of these fluids will likely be taken for analysis in Anchorage. The drilling rig will then be removed and the equipment for the flow test constructed and installed, a The well flow test will consist of flowing the fluid through a small-diameter (two= to four-inch) Pipe with sized nozzles on the end so that sonic flow is established. Pressure and temperature will be monitored downhole and Pressure will be monitored at the nozzle. The flow rate can then be calculated. Alternatively, the fluid may be flowed into a small surge tank, and the flow rate measured directly by a weir gate. Fluid samples will be taken for analysis at various intervals. The well will be flowed at approximately one-half maximum rate until the flow rate Stabilizes, and then Stepped-up to full flow, again until the flow rate stabilizes. The actual discharge points, relative to the tributaries of the Makushin Valley river, have not yet been determined. The points and methods of Gischarge to the river must be selected in the field, based upon proximity to the well or hole, terrain, and ability to eliminate as much @s possible the creation of sediment and temperature impacts to the river. V. Discharge Characteristics i inracteristics Discharge will most likely occur about mid-August, 1983 for the exploration well and, should it Prove necessary, either early-August Or late-September for the temperature gradient hole (depending on whether the wells are drilled concurrently or consecutively). The discharge dates are entirely dependent upon the completion of the well (hole), which is, in turn, gependent upon drilling rates, difficulties during Grilling, and weather. Therefore, the discharge dates May easily vary either way by two or three weeks, although the weather will probably Prohibit any operations beyond approximately September 30. The well flow test will require flowing the well for approximately 4 days at an expected maximum flow rate of approximately 20,000 Pounds per hour (0.09 cubic feet per second). These values May vary by as much as a factor of two, Gepending on the DSroductivity of the resource, the time recuired for flow rates to stabilize, and other factors, all of which will only be known after the well is drilled ane completed. Based upon data ceveloped Guring the 1982 fiele exploration operations, the geothermal reservoir is expected to produce a resource with a temperature of about 250°C ang @ total dissolved solids content of about 10,000 milligrams per liter. The cemperature may vary oy 50°C in either Girection, and the solids content may vary, larger or smaller, Sy 5,000 millicrams Ser liter. Republic has estimated the possible chemical characteristics of the geothermal fluids by assuming a Similarity to the geothermal fluids produced from the only comparable (granitic) geothermal reservoir, that of Roosevelt Hot Springs, Utah. These estimates of Makushin Volcano geothermal reservoir chemical characteristics are presented in Table I. However, it must be emphasized that these values are only the result of extrapolations from a totally separate reservoir, and are not the result of actual measurements of the Makushin geothermal resource. Waste geothermal fluid actually discharged into the river will have a lower temperature and volume and a higher Temperature of the fluid at the surface (wellhead temperature) will be decreased by the flashing of Part of the pressurized liquid into steam. Additional flashing of the licuid down to atmospheric pressure at the surface will drop the temperature fo about 100°C, and discharge to the river will be handled in such a way (temporary ponding, spraying, etc.) so that the fluid is as close to ambient water/air temperature as possible. will also produce steam which will decrease the volume of liquid by about 30 percent (at 250°C). This will result in an actual rate of Gischarge to the river of approximately 0.06 cubic feet per second. The salinity of the aischarged fluid will be. increased by an equivalent amount (to approximately 14,300 milligrams per liter, assuming a reservoir salinity of 10,000 milligrams per liter). Discharge to the river will be hancéled in such a way (energy dissipaters, Piping, etc.) so that sediment input to the river is minimized. VI. Receiving Water Characteristics eth the tacteristics During the 1982 field exploration operations, Republic's subcontractor, Dames and Moore, undertook an extensive program of baseline environmental data collection in and around the Makushin Valley river basin. Their final report is attached as Appendix I, and data pertaining to water guality and fishery resources of Makushin Valley river are summarized below. ; Water quality and flow rates were measured in the Makushin Valley river basin at two Primary stations in the spring and two primary and two secondary stations in the fall (Figure 3). Field parameters (flow, dissolved oxygen, oH, conductivity, temperature, alkalinity, turbidity, ane settleable solids) were measured at ooth primary and seconda stations, and an extensive list of metals and other componen were analyzed in the laboratory from samples taken at the Primary stations. ty res Component Reservoir? Reservoir? DiscnarceS ee iscnarge” Tos 7,067 10,000 Si0g 260 468 Fe . 5 7 Ca 3 M1 Mg 0.27 0.38 Na 2,437 3,448 K 44g 634 HCO3 180 2s5 C03 0 Q S04 33 a3 C1 3,500 4,953 F 5 7 li 20 28 Sr 1.4 2.0 Cr < 0.1 < 0.14 8r <§ <7 Hq 0.0015 0.0021 As 3.7 5.2 NHg Q.7 1.0 3 2s 35 3a 0.46 0.65 Al 0.8 1.1§ Mn < 0.2 <¢ 0.3 Cu < 0.2 < 0.3 ay < 0.2 <0.3 an < 0.2 < 0.3 de 0.004 0.c06 Ce < 0.2 < 0.3 Rb 3.9 5.§ Ca < 0.02 < 0.93 ag < 0.04 < 0.96 So < 0.4 < 9.6 Ti < 0.4 < 0.6 y < 0.3 <1.t Co < 0.02 < 0.03 Nt < 0.1 < 0.14 Mo < 0.2 < 0.2 Au < 9.04 < 0.06 ai < 1.2 < 1.7 y < 1.2 < 1.7 Ta < 0.6 < 0.8 Sa < 0.18 < 0.20 a < 0.12 < 0.17 cr < 0.04 < 0.06 wa < 0.04 < 0.06 Th < 0.7 < 1.0 an 6.5 6.5 wo a REQUEST FGR SHORT-TERM WATER QUALITY VARIANCE UNALASKA GEOTHERMAL ORILLING PROJECT 1983 TABLE [ ASSUMED MAKUSHIN GEOTHERMAL RESOURCE CHARACTERISTICS aM Roosevelt Yot Sorinas Eis From Samfora, 2. 4., Matervais in Geotnernal igrams -er Liter) et 21, 1980, Mulcteiement Geacnemistry Systams ane its nOC-water Systam 2c che lodseveit net Sarings <GRA, Utan. 1 Sctence Laperatery, University of Utan lesearen Institute soolications Fare Maxushin Yolcano —Se cane 14,286 525 10 16 0.85 4,926 306 364 Q 119 7,075 NMOCOGA--GA00 on ao & Ke Re ROR @-*OOG00-.m mMeROONnN O@Mnw iaiculatag sy multioiying tne 2ocsavelt comocnent ssncentratisn sy che assumea Makusnin TTS anc sivicing ay the Joasevel: “3S. aiculatee Maxusnin Jesarvore comtonens FIGURE 3 MAKUSHIN VALLEY RIVER SAMPLE STATION LOCATIONS & Primary Sampie Station @ Secondary Sampie Station @ Temperature Gradient Hoie Completed in 1983 © Tempory Sase Campsite © Temperature Gradient Hole Proposed for 1983 =} Sail Diameter Geothermal Resource Exploratory Weil Proposed for 1983 ORIFTWOOCO UNALASKA ISLAND MAKUSHIN VALLEY Nl ial ha lloeauace BASIN BOUNDARY GLACIER VALLEY 5 MILES Q 5S KILOMETERS —=—— Adapted from Dames & Moore 1982 Enviranmentai Baseiine Program Data Coilection Finai Report. In general, water quality at the primary sample stations was pristine. Discharge was low in the spring and relatively high in the fall. Correspondingly, mineralization decreased from spring to fall, and turbidity and suspended solids increased over the same Period. Because the discharge of geothermal fluids will take place during the fall, the fall values will be of Primary importance. Fall data from Station , located downstream of the expected discharge points (and Upstream of the highest known Salmon spawning), are Presented in Tables II, III and tv. Fish sampling was also undertaken at both Primary sampling stations in spring and fall. Adult ane juvenile Dolly Varden char (Salvelinus malma) were captured at both primary Sampling stations. No other species of fish were captured, but numerous observations of pink salmon (Oncorhynchus gorbuscha) were made throughout the lower reaches orf the river. Because of their known sensitivity and commercial value, the pink salmon are the aquatic species of greatest concern. Né pink salmon were observed above one mile downstream of Station , although all fish Passage barriers ‘were located well above this Station. Thus, Station MV is considered to be the point at which to judge the effects of the discharge to the waters and fishery resources of Makushin Valley river. VII. Potential Impacts aaa mpacts By combining the geothermal fluid @ischarge and the fall values measured at Station MV, an estimate of the expected impacts to Makushin Valley river water quality can be made. These estimated values are presented in Tables II, III and IV. Because the discharge is anticipated to be less than two-hundredths of one percent of the river flow, the change in the river water guality will be undetectable for most constituents, and certainly negligible for those that can be measured. And, for this reason, the impacts to Makushin Valley river fishery resources will be negligible. VIII. Provosed Monitoring and Mitication Measures The above analysis Suggests that expected impacts resulting from the discharge of geothermal fluid into Makushin Valley river will be negligible. However, this analysis is based upon a number of assumptions, including reservoir and well production characteristics, dates of discharge, and fish spawning status, which may well be altered by Gata obtainec at the time afi Gischarge. Accordingly, Republic Droposes to undertake certain Monitoring and mitigation measures to ensure that impacts are negligible. Republic will nave the fall pink salmon spawning run monitored, in cooperation with the Alaska Department of Fish anc Game, from its beginning to approximately establish the Font itueat flow (eta) HO (ppm) (% sat.) Conductivity Combou/em @ 25°C) ow Jemperative (eC) turbidity (NTU) haltleable Sotida (at/)) Alkulinity (aa ColOs, ppa) Mardneus (coy, ga Calis) free C02 (ppm) 155 (ppm) 5 Cppad Nils = N (ppm) fotal Kjetdabt - 8 (pp) fotal Phouphate (ppm) Ait hophosphate (ppm) tra on Mragored HW Ciept. 02) 12.6 (99) 2 i <n w 0.5 26 52 <O.0 0.52 6.00 0.04 rotection Agoney 1976 Qualil election Age MW ADE = Alaska Department of Lav ivonmental Conservation Walor Qua AES UNAL TAME UL PSTIHATLD CONCTNINAL IONS OF CONTAMINANTS (CLNE RAL) ON HAKUSIIN VALLEY RIVER AL HV SUATION DURING CLO TIE REAL HELE TESTING AND DISCHARGE tatimated Hy + leat (Sept, 03) Criter lon; Sourcel ¥) 270.09 -- -- 5.0 mictmus EPA 76 6.1 6.5-9.05 CPA 16 4.9 20 (2)4 EPA 16 -- (K10% reckction in Phatosynthot le compon- sation points EPA 76) -- (C108 reduction in Phatouynthel be compan- gation polats LPA 76) 7.2 20, UPA 76 -- TOS saturations EPA 76 -- Soma an turbidity 56.7 2504 EVA 76 Oot 1605 UPA 76 0.52 (10 an Nts), ADEE o.oo (0.01 elemental); CPA 76 0.04 (0.01 clement at); (PA 76 Criteria for Water ("the Rod Nook") 00 Tb Leuk Wator ally Criteria Comment 0.03% increase No aignificant reduction expocted No algnificant change from fu beat 5 exiatiiy te below at andard No aignificant increane oxpect ed No aiquificant change expocted No aiguificant change expect od THe steeene troy oud/ov De lnking Water Negulat iona (1902) 1 HEQUE ST FOR SHATTER HATER QUALLDY. VARTANCL ~~ UWATASRA CEO TIERRA DTN PROTO I ee - T JAC tt FSTTHATED CONCENTRATIONS OF CONTAMINANTS (CATIONS) IN HAKUSHIN VALLEY HIVER AL MV STATION DURING CEOUICIAL WEEE TESTING AND DISCHARGE Measured HV Fotimated Hoo fent Crilertan; Cal ton (septs 02) (ym) (Supt. 03) (gpa) _ fouree (ype) Comment Alum iinun 1.45 v.45 -- Ne algatficant change expoct ed Aut imony : -- <4 95 EPA 00 Qolow altandard Av (2) 0.0016 0.004 0.05, ADEE Qelow olondard Har ivwl2) -- -- yy ADEE Qelow et ontard Heryt biel?) <0.004 0.001 0.13; EPA OO No aignificant nereane expected Wismutty -- <b.2 -- i No algatficant Increane expect ed Hoon <a. 0.12 0.755 EPA 76 Hetow alonmlard Cactn iemnl 2) <0.002 0.002 0.000) ADEE No elgnificant increase expected Cateion 6.3 6.3 -- No aiqnificant increase expect ad Cer iaml2) OO oo -- No algnificant increase expect od Chr om iawn 2) -- <n -- No significant increane expoct od topane (2) <0.007 0.007 -- No significant increase expect ed Copper 2) oo om 4.4-5.65 EPA 00 below atandard teow 1.652 1.635 1.05 EPA 76 Move standards 0.2% over extat ing mvinnvicunl 2) at . 1 -- No significant increase expected fold -- <O.04 -- eS No significant Increase expect ed inat tristan 2) <u.at i O.0n -- No vignificant Increase expect ed teas?) <o.0001 0.0004 0.05, ANC Nalow standard Ur) -- = -- No significant increase oxpacted ium 2.0 2.0 -- No aiguificant increase axpoct ed mse 0.021 0.02 0.05-0,10; CPA 76 Qolow standard tureeun yl2) <o.onn2 0.0002 0.0025 ADEE Helow stantard Hod yrds inal 2) <O.02 0.02 -- No alqnificant increase expected Nickot (2) 0.020 0.021 0.026-0.05, FPA 00 Nolow utandacd; existing ia near standard Vol ans iia 0.055 0.56 -- 0.1% of seawater concent rat ton -- -- -- Ho algnificant incroane expected <0.0005 -- O.00; ADEE No significant Increane expect od <O.002 0.002 O.055 ADEE Qolow ulandard 4.0 6.5 250 (oo salt); ADE felow atandacd; 0.065 of senwiter concent rat ion Stvont il 2) -- -- -- No significant increane expected Fel bur ium -- <6 -- No aignificant expectad Whos iu -- <7 -- No significant increana expected tio -- <O.14 -- H No siqnificant increase oxpect ed Hit anisul2) <O.04 a4 -- No significant axpactod Fongaton a <2 = No significant expoctod Uractinn -- <1.2 -- No significant expected Vania iawn! 2) -- wo -- No significant oxpected fame 2) on o.0 0.047-0,0775 EPA 00 Welow standard REQUEST FOR SHORT-TERM WATER QUALTTY VARTANCE UNALASKA GEOTHERMAL DRILLING PROJECT 1903 TABLE IV ESTIMATED CONCENTRATIONS OF CONTAMINANTS (ANIONS AND NEUTRAL) IN MAKUSHHIN VALLEY RIVER AT MV STATION DURING GEOTHERMAL WELL TESTING AND DISCHARGE Anion/Neut ral Measured MY Estimated MV + Test Criterion; Constituent (Sept. 2) (ppm) —_ (Sept. 03) (ppm) Source (ppa)() Comment cn Uromide <0.20 0.2 j -- No significant increase expect ed Chloride 2.4 4.8 2.4; ADEC Above standard; 0.03% seawater concentrat ion fluoride 0.00 0.00 -- No significant increase expected lotal Silica 22.0 -- i -- No significant increase expected Dissolved Silica 16.0 16.2 -- No significant increase expected Sulfate 21.7 21.7 -- No significant increase expected Sul Fide <0.10 -- 0.002; EPA 76 Existing is above standard; no significant increase expected ree eee . , (VEPA 76 = U.S. Environmental Protect ion Agency 1976 Quality Criteria for Water (“the Red Book") FPA OO = U.S. Environmental Protect ion Agency 1980 Ambient Water Qua riteria ADEC = Alaska Department of Environmental Conservation Water Quality S€andarda (1979) and/or eee Drinking Water Regulations (1962) —— size of the run and the upstream limit prior to, during, and following discharge. Makushin Valley river water guality and flow rates will also be measured prior to, during, and following discharge at Station MV, Station BC, and 2 new Station immediately downstream from the discharge point. Conductivity or chloride Measurements will likely be used as the prime index of water quality in the field; however, we do sample of geothermal fluid obtained during the initial cleanout flow. This may give us an idea of the actual geothermal fluid constituents immediately prior to actual discharge. Establishing Makushin Valley river water quality and flow rate prior to discharge will also give us the ability to estimate the magnitude of dilution. Following the pink salmon spawning run will help identify the fish's extent of exposure to water cuality changes. St Pau EXHIBIT B — eee The Aleut Corporation Akutan & Sanam ° 2550 Denali * Suite 900 »* Anchorage, Alaska 99503 . Her = a °, Phone (807)-274-1506 aes oe - ee "3 eo < : » i \ 7 a mous i 4 X : Veta o «rf | Ss 33) March 4, 1982 Mr. Gerald W. Huttrer BECEIVED Republic Geothermal, Inc. 11823 East Slauson Avenue “eu G & 1982 Santa Fe Springs, California 90670 Dear Mr. Huttrer: { The Aleut Corporation is 4 regional corporation organized under the Alaska Native Claims Settlement Act (ANCSA) of 1971. The Aleut Corporation has selected the surface and subsurface rights to the following townships, on Unalaska Island, as part of its entitlement under section 14 (h)(8) ANCSA: - Township 71 South, Ranges 118 and 119 West of the Seward Meridian Township 72 South, Ranges 118 and 119 West of the Seward Meridian Township 73 South, Ranges 119 and 120 West of the Seward Meridian The corporation has no objection to the geothermal exploration activities on these lands, as proposed by the Alaska Power Authority and conducted by Republic Geothermal, Inc. of Santa Fe Springs, California; Dames & Moore of Anchorage, Alaska ; and their associated subcontractors. However, and environmental protection practices in their exploration. Furthermre, we expect that the exploration will be conducted with respect for the aesthetic and environmental qualities of the area: ‘this specifically includes the mintenance of clean camps and the proper disposal of solid and liquid wastes. Sincerely, Wayne F.| Lewis Land Director WFL/ jh Appendix P-3 Alaska Department of Environmental Conservation Short-Term Water Quality Variance 8321-CA001 RECEIVED Apr | 9 1983 BILL SHEFFIE LD, GOVERNOR STATE OF ALASKA /, sae ANCHORAGE, ALASKA 99501 DEPT. OF ENVIRONMENTAL CONSERVATION (907) 274-2533 P.O. BOX 615 SOUTHCENTRAL REGIONAL URYCE Ol Kooiak, AvasKa 99615 (907; RETURN RECEIPT ? 4863350 REQUESTED CO SOLDOTNA ALASKA 99669 (907) 262-5210 April 14, 1983 P.O. BOX 1709 Oo VALDEZ, ALASKA 99636 (907) 835-4698 P.O. BOX 1064 Dwight L Carey, Manager 2 (907) 376-5058 99687 Environmental Affairs Republic Geothermal Inc. 11823 East Salvson Avenue Sante Fe Springs, California 90670 Dear Mr. Carey: RE: Water Quality Variance 8321-CA001 The Department of Environmental Conservation has reviewed your request for a short term water quality variance for the non-point discharge of water associated with geothermal exploration in the Makushin Valley on Unalaska Island. ~ A water quality variance is granted for the test discribed in your February 24, 1983 letter for the following parameters: 1) Total Dissolved Solids 2) Temperature This variance expires September 30, 1983. Department of Environmental Conservation regulations provide that any person who disagrees with any portion of this decision, may request an adjudicatory hearing in accordance with 18 AAC 15.200-310. The request should be mailed to the Commissioner of the Alaska Department of Environmental Conservation, Pouch 0, Juneau, Alaska 99811, or delivered to his office at 3220 Hospital Drive, Juneau. Failure to submit a hearing request within thirty (30) days of receipt of this letter shall constitute a waiver of that person's right to judicial review of this decision. Sincerely, Zé 770 Bob Martin Regional Supervisor Enclosures cc: Keith Kelton, DEC, Juneau Alex Viteri, DEC, Juneau Jim Allen, Anchorage District Office, DEC 139 LH Appendix P-4 Letter from Alaska Department of Fish and Game May 9, 1983 BILL SHEFFIELD, GOVERNOR DEPART MENT OF FISH AND GA ME 344-0541 333 RASPBERRY ROAD May 9, 1983 ANCHORAGE, ALASKA 99502 0583-IV-74 Stephen T. Grabacki Dames & Moore 800 Cordova, Suite 101 Anchorage, Alaska 99501 Dear Mr. Grabacki: Re: Temporary Water Use Permit TWP 82-12 - Unnamed creeks, Unalaska Island (All section, T. 72 & 73 S., R. 119 & 120 W., S.M.) The Alaska Department of Fish and Game (ADF&G) has reviewed the request from Republic Geothermal, Inc. dated April 21, 1983, for confirmation of coverage of TWP 82-12 for this year's proposed drilling operations. ADF&G has no objection to continued appropriation of water at approximately 30,000 gallons per day from unnamed tributaries of the Makushin Valley River, under the existing TWP 82-12. The Department has also determined that no Habitat Protection Permit is required for this activity. The water intake will . occur well upstream of the known extent of fish distribution in the Makushin Valley River drainage and the proposed appropriation should not significantly affect fish habitat in the lower Makushin Valley River. ‘ We appreciate your efforts to keep us informed on your proposed operations. If you have any further questions, please contact Denby Lloyd (267-2333) or Kim Sundberg (267-2334). Sincerely, Don W. Collinsworth Commissioner be bz/ BY: Denby S. Lloyd Habitat Biologist Region IV 4 SAN. 2 Habitat Division eee lee | RAINS TU iiAV cc: M. Hayes, ADNR L. Murphy, DMEM B. Martin, ADEC J. Low, FWP K. Griffin, ADF&G ACTION INFO: Appendix P-5 Report of Telephone Conversation between Alaska Department of Natural Resources and Dames and Moore RECORD OF TELEPHONE CONVERSATION DATE 31 May 1983 JOB NO.: __12023-012-20 RECORDED By: _Steve Grabacki OWNER/CLIENT ___APA/RGI TALKED WITH: _Bill Wright (Prokosch's Boss)OF ___apnR CS NATURE OF CALL: INCOMING © OUTGOING @ ROUTE TO: INFORMATION ACTION DLC/RGI MAIN SUBJECT OF CALL: eee ooo ITEMS DISCUSSED: Temporary Water Use Permit TWP82-12 is still in force for 1983. Wright sees no need for ADNR to write a letter to confirm this. 7 . Ss SSSSSSSSSSSSSSSSSSSSSSSSSeeeSeeeSeeeeeeSSSesSSSeSSeSSSSSSSSSSSSSSSSSeee SS SSS 117.1 (12/73) Namec 2 Manca Appendix P-6 Report of Telephone Conversation between Alaska Department of Environmental Conservation and Dames and Moore RECORD OF TELEPHONE CONVERSATION DATE 31 May 1983 JOB NO.: 12023-012-20 RECORDED By: Steve Grabacki OWNER/CLIENT: APA/RGI TALKED WITH: __Jim Allen OF ___ADEC NATURE OF CALL: INCOMING %X OUTGOING Q ROUTE TO: INFORMATION ACTION DLC/RGI MAIN SUBJECT OF CALL: ane EASE nN a NERS SP ITEMS DISCUSSED: Food Service Permit issued in 1982 is still valid for 1983. _-————————- qq Allen sees no need for ADEC to write letter of confirmation. enema He will put a note to this effect in ADEC's file. Oe aS SSS OO sw - TT Ss 197.1 (12/73) Dames & Moore Appendix P-7 Alaska Department of Natural Resources Permits to Drill 83-1 and 83-2 RECEIVEDJUN 2 9 1983 STATE OF ALASKA /s=r= DEPARTMENT OF NATURAL RESOURCES MINERALS AND ENERGY MANAGEMENT © Pouch 7-034 Anchorage, Alaska 99510 June 14, 1983 Republic Geothermal, Inc. 11823 E. Slauson Averue Santa Fe Springs, CA 90670 Subject: Permit to Drill on Unalaska Island for Geothermal Resources Geothermal Permits 83-1 and 83-2 Gentlemen: I have reviewed your May 27, 1983 applications for permits to drill geothermal wells on Unalaska Island. Although these applications contain certain provisions that are not identical to those set out in the geothermal drilling regulations, I find that the drilling programs as proposed by Republic Geothermal, Inc. do safeguard the natural environment and the public welfare, and 1 therefore hereby approve the referenced Permits to Drill as submitted. Title 11, Chapter 87 of the Alaska Administrative Code allows for departures from the drilling program specifications set out in the regulations if the Commissioner of the Department of Natural Resources finds that ‘such departures are necessary because of special or unusual conditions. The Casing and « Cementing, and Blowout Prevention Programs proposed for-these permits differ from the specifications set out for those programs in 11 AAC 87.120 and 11 AAC 87.130 in several instances (see attached list). Considering the past experience of Republic Geothermal, Inc. in drilling exploratory geothermal wells in the area, the geology in the area, and the use of the Longyear 44 diamond core rig with a correspondingly smaller well bore size than that used for most geothermal exploration wells, I believe that the Casing and Cementing, and Blowout Prevention programs as proposed by Republic Geothermal, Inc. are appropriate. Therefore, as the Commissioner's delegated representative, I accept and approve the referenced Permits to Drill with the noted exceptions to the Casing and Cementing and Blowout prevention programs described on the attached list, as provided for in 11 AAC 87.120(j) and 11 AAC 87.130(a). All other provisions and requirements of Title 11, Chapter 87 of the Alaska Administrative Code (Geothermal Drilling and Conservation Regulations) must be observed. Application must be made to the Division of Minerals & Energy Management if a well is to be temporarily suspended instead of being abandoned or produced. A well suspension must be conducted in accordance with good engineering practices and must be approved by the Division of Minerals & Energy Management. Page 2 The letter of June 13, 1983 from the Alaska Power Authority and designation of a cash reserve will be accepted in lieu of the standard drilling bond as prescribed by 11 AAC 87.080. The hold on the account referenced in the letter of June 15, 1983 will be released after final abandonment has been accomplished in accordance with 11 AAC 87.160 - 11 AAC 87.190 and an inspection has been conducted. i Sincerely, Oe | Kay/Brown, Director Attachments: Delegation of Authority Exceptions to 11 AAC 87.120 and 1l AAC 87.150 Exceptions to 11 AAC 87.120 and 11 AAC 87.130 Approved for Republic Geothermal, Inc. Geothermal Permits 83-1 and 83-2 11 AAC 87.120(i) Pressure testing of casing strings, and liners to 1000 psig rather than to 1500 psig allowed. 11 AAC 87.1350(a)(4) Provision requiring hydraulic actuating system and accumulator eliminated. 11 AAC 87.130(a)(5) Provision requiring dual control stations eliminated. 11 AAC 87.1350(b) (1) Provision requiring remotely controlled annular preventer and flow diverter system eliminated. 1T AAC 87.130(b)(2)(A) Provision requiring blowout prevention system to have an expansion-type preventer and accumulator eliminated. oe 11 AAC 87.130(b) (2) (B) Provision requiring blowout prevention system to have a remote-controlled hydraulically-operated 7 double ram blowout preventer eliminated. 11 AAC 87.1350(b) (2) (F) Provision requiring a blowdown line with at least two valves anchored at all bends and at the ends eliminated. . 11 AAC 87.130(f) Provision requiring a kelly.cock installed between the kelly and the swivel eliminated. I hereby authorize the above exceptions to 11 AAC 87.120 and 11 AAC 87.130 for Republic Geothermal, Incorporated's Geothermal Permits 83-1 and 83-2. 6 -/5-- 83 Division of Minerals & Energy Management MEMORANDUM State of Alaska DEPARTMENT OF NATURAL RESOURCES DIVISION OF MINERALS AND ENERGY MANAGEMENT to:Esther C. Wunnicke, Commissioner “i pate: May 17, 1983 e. FILE NO: “sreLepHONE No: 276-2653. ; FROM: Kay Brown, Director susJect: GEOTHERMAL DRILLING ET tell PERMITS =~ DELEGATION co OF AUTHORITY whe Authority to issue geothermal. drilling permits under AS 41.06.040 has not been delegated by the Commissioner. I propose that this authority be delegated to the Director, DMEM. Prevention of waste, conservation of / natural resources and drilling safety are addressed in the drilling permi J I believe that DMEM is proper division within DNR to issue these permits. Any geothermal operation occuring on state lands would also require a plan of operations approval which would undergo the DNR/DEC/ADF &6 interagency review. Recommended action: Authorities vested in AS 41. 06.040. are delegated by the Commissioner to the Pre DMEM. I concur with the recommended action. Ma ; sther C. Wunnicke - Commissioner 25242 m ee Whit 02-001A (Rev. 10/79)