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FERC Black Bear Lake Hydro 1991
November 12, 1991 Hi) ‘la, Lois Cashell, Secretary Federal Energy Regulatory Commission 825 North Capitol Street NE Washington, DC 20426 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001-Alaska Dear Ms. Cashell: Pursuant to an August 16, 1991 request from the Director, Division of Project Review, HDR submits the enclosed original and 14 copies of responses to deficiencies and additional information requests. A 16th copy is also enclosed. We request that this copy be date stamped and returned to verify the timely receipt of this material. Concurrently with its submittal to the FERC, these responses are also being distributed to consulted agencies and Native American organizations. Sincerely, Re ~ fi S GINEERING, INC. mn Project Manager NHM/las Enclosure ce. Robert Grimm, AP&T Vernon Neitzer, AP&T Deborah Frazier-Stutely, FERC HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C * Bellevue, Washington ARRAS CAAT VERIFICATION Neil H. Macdonald, being first duly sworn, deposes and says that the contents of this response are true to the best of his knowledge and belief. On behalf of the Applicant, the undersigned has signed this response this |Q day of Novembey-_, 1991. Neil H. Macdonald SUBSCRIBED AND SWORN TO before me, a Notary Public in and for the State of Washington this /.2” day of //VC7D2/, 1991. Le Z tary Public, residing at , Way haarrititr) My commission expires GH _ Gs CERTIFICATE OF SERVICE I hereby certify that I have this day served the foregoing document upon all parties of record in this proceeding in accordance with the requirements of Section 1.17 of the Rules of Practice and Procedure. Mr. Robert W. Loescher Executive Vice President Sealaska Corporation One Sealaska Plaza, Suite 400 Juneau, AK 99801 Mr. Rick Harris Sealaska Corporation One Sealaska Plaza, Suite 400 Juneau, AK 99801 Ms. Corrine M. Garza Chief Executive Officer Klawock Heenya Corporation P.O. Box 25 Klawock, AK 99925 Mr. Glen Charles President Shaan Seet, Inc. P.O. Box 90 Craig, AK 99921-0090 Mr. Bob Martin General Manager Tlingit-Haida Regional Electric Authority -O. Box 210149 Auke Bay, AK 99821-0149 USS. Fish and Wildlife Service 1011 E. Tudor Road Anchorage, AK 99503 Endangered Species Specialist U.S. Fish and Wildlife Service 1011 Tudor Road Anchorage, AK 99503 Mr. Nevin Holmberg U.S. Department of the Interior Fish and Wildlife Service P.O. Box 1287 Juneau, AK 99802 Mr. Chuck Osborne U.S. Department of the Interior Fish and Wildlife Service P.O. Box 3193 Ketchikan, AK 99901 Commissioner Alaska Department of Fish and Game P.O. Box 3-2000 Juneau, AK 99802 Mr. Rick Reed Department of Fish and Game Habitat Protection Division Southeast Regional Office P.O. Box 20 Douglas, AK 99824-0020 Mr. Jack Gustafson Department of Fish and Game 2030 Sea Level Drive, Suite 205 Ketchikan, AK 99901 Mr. Glenn Freeman Department of Fish and Game Sport Fish Division P.O. Box 101 Klawock, AK 99925 Director Office of Hydropower Licensing Federal Energy Regulatory Commission Mail Stop 301-RB 825 North Capitol Street N.E. Washington, D.C. 20426 Mr. Tom DeWitt, Chief DPR West Branch Federal Energy Regulatory Commission 810 N. Capital Street, Room 1062 Washington, D.C. 20426 Mr. Arthur Martin Regional Office Federal Energy Regulatory Commission 1120 SW Sth Avenue, Suite 1340 Portland, OR 97204 Division of Environmental Quality Alaska Department of Environmental Conservation P.O. Box 0 Juneau, AK 99811-1800 Mr. Bill Janes Department of Environmental Conservation Southeast Regional Office P.O. Box 32420 Juneau, AK 99803 Ms. Lorraine Marshall Division of Governmental Coordination P.O. Box AW Juneau, AK 99801-0165 Director Department of Natural Resources Division of Land and Water Management Southcentral Regional Office 3601 C Street P.O. Box 107005 Anchorage, AK 99510-7005 ACMP Liaison Department of Natural Resources Division of Land and Water Management 400 Willoughby Avenue Juneau, AK 99801 Mr. Andrew Pekovich Acting Regional Manager Department of Natural Resources 400 Willoughby, Suite 400 Juneau, AK 99801-1000 Department of Natural Resources Division of Land and Water Management 400 Willoughby Avenue, Suite 400 Juneau, AK 99801-1796 Mr. Michael Eberhardt Department of Natural Resources Division of Parks and Outdoor Recreation 400 Willoughby Avenue Juneau, AK 99801-1796 Environmental Impact Review Officer Environmental Protection Agency 1200 Sixth Avenue Seattle, WA 98101 Ms. Judith Bittner Office of History and Archaeology Department of Natural Resources Division of Parks and Outdoor Recreation Pouch 107001 Anchorage, AK 99510-7001 Ms. Georgina Akers U.S. Army Corps of Engineers P.O. Box 898 Anchorage, AK 99506-0898 Mr. Steve Penoyer, Director Alaska Region U.S. Department of Commerce National Marine Fisheries Service P.O. Box 1668 Juneau, AK 99802 Ms. Constance Sathre Staff Attorney National Oceanic and Atmospheric Administration P.O. Box 21109 Juneau, AK 99802-1109 Mr. Dan Robison U.S. Environmental Protection Agency 701 C Street Anchorage, AK 99513 Mr. Paul Haertel Associate Regional Director Resource Services Alaska Regional Office National Park Service 2525 Gambell Street Anchorage, AK 99503-2892 Mr. Larry Wright Environmental Protection Specialist National Park Service 2525 Gambell Street Anchorage, AK 99503 Michael Lunn, Forest Supervisor U.S. Forest Service Federal Building Ketchikan, Alaska 99901 Mr. Gary Laver U.S. Forest Service Federal Building Ketchikan, AK 99901 Ms. Jeannie Grant U.S. Forest Service Craig Ranger District P.O. Box 500 Craig, AK 99921 Ms. Charity Fletcher City Planner City of Craig P.O. Box 23 Craig, AK 99921 The Honorable Dennis Watson Mayor, City of Craig P.O. Box 23 Craig, AK 99921 The Honorable Mr. Dan Wagner Mayor, City of Thorne Bay P.O. Box 19110 Thorne Bay, AK 99919 The Honorable Aaron T. Isaacs, Jr. Mayor, City of Klawock P.O. Box 113 Klawock, AK 99925 Mr: Al Macasaet City of Klawock P.O. Box 113 Klawock, AK 99925 Mr. Mike McKinnon Department of Transportation and Public Facilities Technical Services P.O. Box 1467 Juneau, AK 99811 Mr. Rich Poor Department of Transportation and Public Facilities i P.O. Box Z Juneau, AK 99811 Regional Environmental Officer Department of the Interior 1675 C Street Anchorage, AK 99501-5198 ofl Bowell Mr. George A. Walters : MrsRoberrBabeRecckho= Area Director Executive Director Bureau of Indian Affairs Alaska Energy Authority P.O. Box 3-8000 P.O. Box 190869 Juneau, AK 99802 ‘Anchorage, AK 99519-0869 R (\ te SN INE} j Dated at Seattle, Washington this |Q - day of Novewhew __, 1991. Neil H. Macdonald BLACK BEAR LAKE HYDROELECTRIC PROJECT FERC NO. 10440-001-ALASKA RESPONSE TO DEFICIENCIES AND ADDITIONAL INFORMATION REQUEST FERC LETTER OF AUGUST 16, 1991 NOVEMBER 1991 HDR Engineering, Inc. 11225 S.E. Sixth Street Building C, Suite 200 Bellevue, Washington 98004 Section SCHEDULE A: DEFICIENCIES i 2. BLACK BEAR LAKE HYDROELECTRIC PROJECT FERC NO. 10440-001 ADDITIONAL INFORMATION REQUEST TABLE OF CONTENTS (a) Proprietary Rights (b) | County and Federal Facilities (c) Political Subdivisions: Project Location (d) Special Purpose Districts (e) Political Subdivisions Project Boundary SCHEDULE B: ADDITIONAL INFORMATION 15 (a) (b) (c) (a) (b) ) (d) (e) (a) (b) (c) Monthly Flow Duration Curves: Black Bear Creek Monthly Flow Duration Curves: Project Operation Fish Habitat Protection LDA Flow Regime LDA Minimum Flow LDA Probability Analysis LDA Project Operation Modes LDA Simulation Model Beaver Population Monitoring Wildlife Passage Transmission Line Raptor Protection Control of Public Access (a) (b) (9) Energy Conservation Project Purpose Transmission Line ROW Project Boundary 12 12 13 14 14 Wildlife Crossing Non-conductive Crossarm braces Elevated Perch Construction Perch Guards Armless Configurations Minimum Annual Lake Level HEP Input Files Monthly Flow Duration Curves: Black Bear Lake Monthly Flow Duration Curves: Project Startup Monthly Flow Duration Curves: Project Capacity Agency Correspondence Date Correspondence From: 8/16/91 FERC, Wash., DC 9/27/91 HDR, Bellevue, WA 9/27/91 HDR, Bellevue, WA 10/9/91 HDR, Bellevue, WA 10/9/91 HDR, Bellevue, WA 10/9/91 HDR, Bellevue, WA 10/9/91 USFS, Craig, AK 10/11/91 HDR, Bellevue, WA 10/11/91 HDR, Bellevue, WA 10/16/91 NMFS, Juneau, AK 11/5/91 ADFG, Ketchikan, AK Appendix A Correspondence To; AP&T, Port Townsend, WA , USFS, Ketchikan, AK USFS, Craig, AK ADFG, Ketchikan, AK USFWS, Ketchikan, AK NMFS, Juneau, AK HDR, Bellevue, WA FERC, Washington, DC BLM, Anchorage, AK HDR, Bellevue, WA HDR, Bellevue, WA 15 16 17 18 19 20 21 40 53 66 79 BLACK BEAR LAKE HYDROELECTRIC PROJECT FERC PROJECT NO. 10440-001-ALASKA FERC LETTER DATED AUGUST 16, 1991 SCHEDULE A DEFICIENCI Applicant Responses 1.(a) Mr. Robert S. Grimm Mr. Vernon Neitzer President Vice President, Engineering Alaska Power & Telephone Co. Alaska Power & Telephone Co. P.O. Box 222 P.O. Box 459 Port Townsend, WA 98368 Skagway, AK 99840 1.(b) Alaska does not have counties, therefore, the project is not located within a county. Alaska is subdivided into boroughs. However, the proposed project is not within the boundaries of a borough. The area is within what is called an unorganized borough. The project area is located within the First Judicial District of Prince of Wales Island. There is no administration office or mailing address. The project will not use any Federal facilities. 1.(c) The proposed project is not located within any city or town. The project is 14 road miles from the town of Craig. However, Craig has a population of less than 1,300. 1.(d) The project is not located within an irrigation district, drainage district, or special purpose political subdivision. 1.(e) None. ia The letter states that the project boundary must be wide enough to allow public access and include any lake-side lands suitable for future recreational development. In order to address this deficiency requirement, Exhibit G-1 has been revised to include an approximate 100 foot strip around Black Bear Lake, where practicable due to steep lakeside cliffs. The only area around the lake that is level and large enough for possible future recreation is the area around the existing USFS cabin. As mentioned in the License Application, no on-site recreational facilities are proposed as part of the hydroelectric project. To adhere to the deficiency 1 requirement, however, the area around the USFS cabin will be included within the project boundary. The License Application states that if the proposed State selection takes place, the State would like to continue reserving the cabin, but will have a problem maintaining it. The Applicant has proposed to assist the State in the maintenance of the cabin in the event that the State selection does take place. Section 8 of the Initial Statement has been revised as follows: 8. Lands of the United States affected by the proposed project (shown on Exhibit G) are as follows: USS. Forest Service @ Surface Penstock, Siphon Intake, and Black Bear Lake NE 1/4 of Section 12, T73S, R82E: Approximately 60 acres SE 1/4 of Section 12, T73S, R82E: Approximately 65 acres SW 1/4 of Section 7, T73S, R83E: Approximately 45 acres NW 1/4 of Section 18, T73S, R83E: Approximately 115 acres NE 1/4 of Section 13, T73S, R82E: approximately 10 acres . Transmission Line (10 foot right-of-way) Section 29, T72S, R81E: Approximately 1.4 acres NW 1/4 of Section 32, T72S, R81E: Approximately .10 acres One comment letter was received (attached) from the U.S. Forest Service on the proposed boundary. As stated in their letter dated October 9, 1991 they have no objection to the proposed boundary. BLACK BEAR LAKE HYDROELECTRIC PROJECT FERC PROJECT NO. 10440-001-ALASKA ADDITIONAL INFORMATION REQUEST FERC LETTER DATED AUGUST 16, 1991 SCHEDULE B ADDITIONAL INFORMATION Information Request 1.(a) "Monthly flow duration curves computed from the mean daily discharge records of the Black Bear Creek stream gage." Applicant Response Monthly flow duration curves for Black Bear Creek at the Black Bear Lake stream gage are now included. These curves are based upon the Black Bear Lake gage period of record from 1981 to 1990. It can be seen from these curves that natural lake outlet flows are frequently below 9 cfs during the months of November through April. Information Request 1.(b) "Monthly flow duration curves of the mean daily discharge of Black Bear Creek below the powerhouse for both the "startup" and “project-capacity” modes of operation, as described in your Lake Drawdown Analysis (Appendix E-5)." Applicant Response The same 10-year period of record was used to generate monthly flow duration curves for the mean daily discharge from the powerhouse combined with flow at the lake gage. These curves are included for both project startup and project capacity modes of operation. It can be seen from these curves that by utilizing Black Bear Lake storage, the project serves to moderate (reduce maximums and increase minimum) flows available to Black Bear Creek from the natural lake outlet and powerhouse tailrace. Based upon the period of record, startup mode minimum flows exceed 15 cfs and during project capacity mode, minimum flows exceed 9 cfs all year. Information Request 1.(c) "An explanation of how the proposed minimum and maximum flows would ensure protection of downstream fish habitat." Applicant Response From the monthly flow duration curves, Table 1 shows flow exceedence trends for the outlet of Black Bear Lake (natural conditions), and the project flows at both startup and project capacity modes. From this table, it can be seen that monthly flows for both project modes equals or exceeds 9 cfs 100 percent of the time in all months. Under natural conditions, 9 cfs equals or exceeds 100 percent of the time in only two months (May and June). These trends show that under project conditions, at no time will flow at the tailrace be less than the minimum natural flows from the outlet of Black Bear Lake. As can be seen from the flow duration curves for both project startup and project capacity modes, normal project flows will generally be significantly higher than the minimum of 9 cfs. These higher flows will be provided by using lake storage during the low flow periods of winter. Since the powerhouse location is upstream of the upwelling area, (in the area of natural subsurface infiltration), all project flows from the tailrace will be discharged to infiltration galleries which will feed the subsurface aquifers, making these flows available to the upwelling area. Additionally, these minimum flows will be augmented by significant unregulated tributary flow into Black Bear Creek below the Black Bear Lake diversion. The combination of any minimum project flow, plus the unregulated flow is expected to ensure protection of downstream fish habitat. Further discussion of these flows is presented in Exhibit E, Pages E-48 and E-49 of the License Application. From Table E2-2 of the License Application (included), it can be seen that monthly maximum project flows will exceed the 10-year monthly average gaged flows at the outlet of Black Bear Lake in every month except May and June. The average maximum reduction in May flows will be approximately 5.5 percent and for June, 12.5 percent. As is the case with minimum flows, flows into Black Bear Creek available for fishery habitat are augmented by unregulated tributary and subterranean inflow. The relatively small reductions in maximum flows related to the project are not believed to be a significant impact to fishery resources. TABLE 1 MONTHLY FLOW EXCEEDENCE OF 9 CFS (FLOWS AVAILABLE TO UPWELLING AREAS) FOR NATURAL CONDITIONS, PROJECT STARTUP AND PROJECT CAPACTIY MODES 8 3 | 8 8 8 |8 8 |8 8 8 Api) [May Source: Monthly Flow Duration Curves; HDR, 1991 1 Measured at lake outlet 2 Measured at powerhouse tailrace 8 8 8 8 8 100 8 8 8 8 8 TABLE E2-2 PROPOSED FLOW RELEASES FROM THE BLACK BEAR LAKE POWERHOUSE (cfs) December B a I o Co 5 ay ee ~_ A © i : a NTR oj;N e |e Ba _ Fl ele Nn 1 \o WwW w e an R 35) 38 46 tN ea A | | TT 1 Based on 10 years of gage data at the lake outlet. August September 29 a Ce cele lS i> /= ENS NE EE IEEE 5. ~ | ty oO BA oj;inNn le Nn fe An Information Request 2.(a) “Clarify whether the flow regime examined in the LDA is your proposed flow regime, as indicated in Exhibit E, Section 2.5, or is ‘for discussion purposes only,' as indicated in Appendix E-5." Applicant Response The flow regime as detailed in the Lake Drawdown Analysis (LDA) in the original license application is the proposed flow regime for the project. x Information Request 2.(b) "The annual flow regime referenced in 2(a) above specifies 9 cubic feet per second (cfs) as the minimum discharge you would withdraw from Black Bear Lake and release from the powerhouse into Black Bear Creek. However, your flow duration curve of project operations (Appendix E-S, Figure 5) shows that 9 cfs is not exceeded 100 percent of the time. Explain this discrepancy and clarify the minimum flows you would maintain in Black Bear Creek." Applicant Response The flow duration curve shown in Appendix E-5, Figure 5 is the flow duration curve for the period of record at the Black Bear Lake outlet. It does not account for use of lake storage to augment Black Bear Creek flows below the powerhouse. New monthly flow duration curves for project startup and capacity conditions show that minimum combined project (out of tailrace) and lake outlet (spill) flows will exceed 9 cfs 100 percent of the time. + Information Request 2.(c) "Although you say that your objective is to limit lake drawdown to a maximum of 15_-feet (elevation 1,672 feet), you refer to a ‘probability analysis’ that shows drawdown would exceed this amount in 3 percent of all years. Describe the methods and results of your probability analysis, indicating the minimum lake elevation you would maintain in all years." Applicant Response The Lake Drawdown Analysis minimum lake elevation graph, Figure 3 in the LDA Analysis uses the period of record to show minimum lake elevations under typical plant operation. Monthly minimum and maximum flows were input to result in the lake being drawn down to nearly the minimum elevation 1,672 feet. The minimum flow used for this operational scenario is 15 cfs. — A modified Figure 3A is included in this response. To produce this figure, the proposed at-capacity operational flows were used. In this case the minimum lake level was at elevation 1,677 feet. This analysis indicates that the minimum lake elevation of 1,672 feet would be maintained during all years of record. A lake elevation of 1,672 is the minimum lake level that is proposed during all years of operation. It is possible that the siphon intake could be used to draw the lake down an additional 5 feet to elevation 1,667 under certain conditions. For example, it may be deemed by the agencies to be more environmentally beneficial to provide additional supplemental water from Black Bear Lake through the siphon to Black Bear Creek, the upwelling areas, and Black Lake, than to maintain the minimum 1,672 elevation in Black Bear Lake. Under these circumstances, Black Bear Lake could be drawn down below elevation 1,672. Otherwise, as a rule of operating the plant, elevation 1,672 is the minimum lake level to be maintained 100 percent of the time. Information Request 2.(d) "The LDA includes analyses of 'startup' and 'project-capacity' modes of operation. Your lake level duration curves for the two modes show lower lake levels a greater percentage of the time under startup mode than under project-capacity mode (Appendix E-5, Figures 6 and 7). Also the accompanying text says the lake would exceed elevations of 1,672 feet and 1,679 feet 100 percent of the time under startup and project-capacity modes, respectively. Explain why you would withdraw more water from the lake under startup mode than under project-capacity mode." Applicant Response Figures 6 and 7 were inadvertently reversed in the original application. Figure 6 should be "Modified Project Capacity Lake Conditions" and Figure 7 should be "Modified Project Startup Conditions." The accompanying text should say the lake would exceed elevations of 1,679 feet and 1,672 feet.100 percent of the time under startup and project-capacity modes, respectively. More water would be withdrawn from the lake under the project- capacity mode. Information Request 2.(e) "Provide a detailed explanation of the LDA simulation model, including all assumptions, constraints, methodology, inputs and outputs used in the modified Hydropower Evaluation Program (HEP)." Applicant Response MODIFIED HEP PROGRAM TO SIMULATE LAKE DRAWDOWN Program Description The HDR/OTT Engineering Hydropower Evaluation Program (HEP) is an analysis tool for computing average annual power and energy generation for a high head run-of-river hydropower project. This program was modified to allow simulation of withdrawals from Black Bear Lake. It uses two input files, the plant data file which contains the principal project features (such as pipe length, friction factors, diameter, fish flows, minimum and maximum turbine flows, storage volume information, mechanical losses, and the turbine efficiency curve). The second data file is the daily flow data file. Assumptions Ls 4. The storage elevation curve prepared by Harza Engineering during earlier studies (APA 1982) were used. The analysis uses run-of-river condition except when the daily flow range is outside of the specified range of minimum and maximum flows. When the flow is outside the range of minimum and maximum range, water is added or subtracted from storage to meet the flow requirements. Uncontrolled spill occurred when the reservoir was full. The tailwater elevation is not variable. Methodology BE Streamflow records were obtained from "HYDRODATA.". HYDRODATA is a laser disc database with daily USGS stream gage data. The plant data was prepared. The modified HEP program was run and the plant data file and the daily flow file were input into the program. The program has four output files: i) Reservoir Elevation Output ii) Spill Output File iii) | Turbine Output File iv) | Power and Energy Output File The reservoir output file contains the minimum and maximum reservoir elevations for each month for the period of record. This file is used for the probability analysis to check for minimum reservoir elevation of 1,672 feet. 9 6. The Spill Output File is a daily flow file with only the extra water which spill. This daily flow file used in the "FLODUR" program to compute average monthly and annual spill and flow duration curves. FLODUR is a Fortran program compiled by HDR/OTT Engineering, which computes the average and annual flow and gives the flow duration curve with the daily flow file as an input. i: The Turbine Output file is also a daily flow file which is used in the FLODUR program to compute the average monthly and annual turbine flow and flow duration curves. 8. The Power and Energy Output File contains the input data for the HEP program (plant data file) and summarizes the energy generated on an annual and monthly basis in megawatt-hours for the period of record. Information Request 3.(a) "How would you use the results of the pre-project inventory and post-project monitoring of beaver populations?" / Applicant Response A pre-construction reconnaissance inventory of beaver in the project area will be conducted to provide up-to-date estimates of beaver in the upwelling area. This baseline data will allow post-project comparison and evaluation of any changes to the beaver population which may occur. The Applicant will also consult with the ADFG in the design of pre- and post-project beaver reconnaissance methods, and provide them with all data collected. If post-project monitoring shows a decline in beaver populations which can be attributed to project operation, (either by actual habitat changes caused by the project, human disturbance or increased trapping pressure), then the Applicant will consult with the ADFG, to devise appropriate measures to prevent or mitigate beaver losses. Information Request 3.(b) "How are the surface portions of the penstock ‘designed to allow passage of black- tailed deer’? Provide drawings of the design(s) chosen." Applicant Response No specific deer migration routes have been identified in the project area. However, deer in this area are known to move seasonally between higher elevations in summer and lower elevations in winter. In areas where the pipeline is above ground, wildlife crossings will be provided by constructing a system of berms of rock and earth over the pipe. The maximum slope of the berm will not exceed a 1.25:1 slope ratio. These berms will be located approximately 10 every 500 feet along the above ground length of the pipeline. A conceptual design is shown in Figure 1. In the event that additional pre-construction monitoring locates specific deer migration routes through the pipeline alignment, then berms will be constructed in these areas, if feasible, from an engineering standpoint. Information Request 3.(c) "What specific measures would you implement in constructing the transmission line under your proposal to ‘comply with U.S. Fish and Wildlife Service Raptor Protection Guidelines'?" Applicant Response According to Olendorf (1981), adequate separation of energized conductors, ground wires, and other metal hardware is the most important factor in preventing raptor electrocutions. This separation can be achieved either by providing vertical separation of conductors by raising the center phase on a pole top extension or by lowering the outside phases. The objective in either case is a 60-inch minimum separation of conductors (Figure 2). Other important design elements include the use of wooden crossarms and braces, instead of metal, and insulation of wires and other metal equipment. Another method of preventing raptor electrocution is providing alternate perch sites to encourage raptors to perch on less dangerous parts of power pole structures. Perches must be low enough so that birds cannot sit underneath them (on energized equipment), but high enough to prevent casual touching of conductors with the bird's tail or a wing stretched downward. An eagles's tail will reach about 10 inches below its perch and the top of its head is 18 to 20 inches above the perch. Thus, a vertical rise for perches of 14 to 16 inches would be most appropriate. Touching two conductors simultaneously when both are below the perch is not likely, except on take-off. If greater vertical separation is necessary for some reason, perching on the crossarm might be prevented by installing an extra crosspiece as part of the perch assembly halfway between the crossarm and the perch. Installation of perch guards on the crossarm is another practical method of filling excess space in this situation. (See Figures 3 and 4.) The second crossarm must often be done in combination with insulation of transformer risers and jumpers and with artificial perches to provide higher and safer places for the birds to sit. Armless construction is an alternate to the pole/crossarm configuration. Raptor electrocution by armless configurations is minimized by limiting raptor perching primarily to the top of insulators and/or by placement of conductors alternately on one side of the pole and then the other. A spacing between conductors of at least 55 inches is recommended (Figure 5). 11 Armless construction does have other disadvantages. Although these structures are quite beneficial in preventing electrocution to birds of prey, they do pose some problems to the utility and create extra hazard to maintenance crews working on the modified lines. Because the phases, or conductors, are closer together when the armless configuration is used, it is necessary to place the poles nearer to one another than with standard crossarm configurations. This means that more structures are needed per mile of distribution line. On the average, an armless structure costs about the same as structures utilizing crossarms; however, approximately three to four more poles are required per mile of line. This results in additional construction costs. Applicant proposes to use one or more of the measures described here. The exact configuration of protective measures will be determined in cooperation with the ADFG and USFWS at the time of final design. Information Request 4. "You say that the project access road could lead to increased trapping pressure on beavers in the project area, whose ponds provide important rearing habitat for coho salmon. You propose to request the ADFG to prohibit beaver trapping in the area, but this measure alone may not sufficiently deter trapping. Therefore, you should investigate alternatives for controlling unauthorized public access to the project area, such as locked gates on the project access road. Provide a description of the costs and expected effectiveness of the measures examined, or explain why such measures would be impractical." Applicant Response Applicant proposes to install a locked gate on the project access road. This gate will help limit unauthorized entry to project facilities, as well as to beaver habitat areas. However, a locked gate is insufficient to prevent unauthorized beaver trapping, as hunters/trappers in this area routinely hike long distances in pursuit of game. Applicant believes that a combination of greater regulation and enforcement action is most likely to succeed in reducing trapping pressure on project area beaver. Regulation would consist of prohibition of beaver trapping (with associated fines or incarceration for violators) as well as posting project lands with notices to this effect. Enforcement would include regular patrol of these areas by ADFG game wardens. Information Request 5.(a) “Provide information on energy conservation pursuant to Section 10 (a) (2) (c) of the Federal Power Act." Applicant Response Due to its relatively small customer base, the Applicant does not maintain an independent company-operated conservation program. However, the Applicant cooperates with the 12 Alaska Energy Authority by providing to its customers literature and other conservation information supplied by AEA. In addition, the high cost of diesel-based generation acts as a natural inducement to conserve and reduce energy use by AP&T customers. AP&T estimates that its residential customers use one-quarter to one-third less electric energy than similar usage in the Pacific Northwest area. Information Request 5.(b) "Provide additional analysis and information regarding the Purpose of the Project on Page A-12 of your application. Specifically, show how the project would initially replace 37,000 barrels of crude per year, and 70,000 barrels per year at full load." Applicant Response Initially, the project demand is expected to be 12,000 MWh per year. Therefore: 17,000 BTU’s Gallon Fuel x Barrel = 0.00315 Barrel kWh 135,000 BTU’s 40 Gallons kWh 0.00315 Barrel - 12,000 MWh - 37,800 Barrels kWh Year Year At full load, the project demand is expected to be 23,100 MWh per year. Therefore: 0.00315 Barrel x 23,100 MWh - 72,765 Barrel kWh Year Year Information Request 5.(b)(i) "What is the source of the additional load?" Applicant Response General population growth is foreseen as the major source of future load demand. In addition to expanded residential demand, growth in the business sector is expected to include recreation facilities, and possibly mineral extraction and processing activities. 13 Information Request 5.(b)(ii) "What is the time frame for full-load operation?" Applicant Response The Applicant estimates that full load demand would occur approximately 15 years after project startup. Information Request 5.(b)(iii) "Are there contract negotiations to serve other loads in the project area?" Applicant Response There are no contract negotiations by AP&T to serve other loads in the project area. Information Request 5.(c) "Provide the width of the right-of-way for the transmission line.” Applicant Response The transmission line right-of-way width will be ten (10) feet and will be in conjunction with existing and new road rights-of-way. Portions of the State Highway are currently being aligned by the Alaska Department of Transportation. Project transmission lines are proposed to follow the road. When the Alaska DOT completes its realignment, the transmission line will similarly be finalized. Information Request 6. "Because your proposed project includes federal lands within its boundaries, complete one of the enclosed land description forms, prepare a microfilm copy of the exhibit sheets (referenced on the land description form) mounted on aperture cards, and submit one copy of both the land description form and the aperture cards within 90 days from the date of this letter with the Secretary of the Commission. An additional copy should also be sent to the appropriate BLM state office. A list of the BLM state offices is enclosed. Complete the form for Rectangular Survey System lands if appropriate. If the lands cannot be described in the Rectangular Survey System, complete the form for non-public land states." Applicant Response The land description forms and aperture cards have been prepared. They were provided to the BLM and the FERC under separate cover, dated November 12, 1991. (See Appendix A, Agency Correspondence.) 14 TYPICAL SECTION REVEGETATED SLOPE BLACK BEAR LAKE HYDROELECTRIC PROJECT Prince of Wales Isiond, Alaska FERC NO. 10440 ALASKA POWER & TELEPHONE COMPANY Port Townsend, Washington CONCEPTUAL WILDLIFE CROSSING 15 FIGURE 2 USE OF NON-CONDUCTIVE CROSSARM BRACES IN LIEU OF GROUNDED METAL BRACES (109M) 43" W Source: R. Olendorf, 1981 6 FIGURE 3 ELEVATED PERCH CONSTRUCTION C41m) . 16” MAXIMUM TO PREVENT PERCHING. IF GREATER THAN 16°C.41M) USE SOME BARRIER TO PREVENT PERCH- ING ON CROSSARM, AS SHOWN BELOW. Source: R. Olendorf, 1981 17 FIGURE 4 PERCH GUARDS RAPTOR PROTECTOR ONE OR TWO AS REQUIRED BY SEE DETAIL “A” (1.02M)40" WOODEN OR FIBERGLASS CROSSARM BRACES FRAYED GUY WIRE PERCHING GUARD Source: R. Olendorf, 1981 18 FIGURE 5 ARMLESS CONFIGURATIONS NEUTRAL POSITION (40M) 55” (PREFERRED : NEUTRAL 48° POSITION (183 M)72° Source: R. Olendorf, 1981 19 MOD. FLOW REGIME + i] > Lan & oO 3 5 9 ° 4 | > — I < « A = 2 = et =z H = 1981 FLOW REGIME Oo (spuosnoy,) (44) T3AN1 31° Prejest Muonber aeempes 07042-003-002 BLACK BEAR LAKE HYDROPOWER ie Shest Tite OCTOBER 1991 FIGURE 3A- MINIMUM ANNUAL LAKE LEVEL ae (1981 - 1990) 4.5 MEGAWATT PROJECT N. MACDONALD HEP INPUT FILES > - COOOYVYUMEUYNSAUWWNERH Xn New 2on eee anee 1981 110 140 ERLBs xn Naeanw NRReERY SSSRase e3sc _ NOR NWERWaaNns» 78 SraesRs 102 nN — TNE wWNeee Ww FUN OYPOAENDANWNNU aN un SVeere Nee PONNRENKHOMBWYWWIMY SHAW wo ve —— ne oe BSasrwRVSsSwowr~hwS 43 38 110 76 121 30 135 105 334 BLACK BEAR LAKE PROJECT FILE WAME: 88L8190.0TT HEP DAILY FLOW INPUT FILE 85 134 146 23 7 13 85 55 35 27 21 33 5 8 31 6 5 6 us 95 59 60 47 «30 33 3 52 27 «17 5 7 i 10 13 18 1 10 9 18 16 14 28 3440 26 3655 31 39 «35 16 17 18 2 17 «14 6 6 6 69 34 20 33 2115 104 129 115 10 9 1212 12 13 12 14 130 49 46 30 33 24 16 12 10 2 uo on 36 5 5 5 41209 6 5 4 3.3 4 3.3 «4 2 2 2 18 14 1 45 49° 31 37,3459 41 42 40 43° 400 41 33-3336 27 22 «20 21 19 16 Ve? 39 «S738 5 5 4 59 52 27 10 16 21 19 16 12 5 4 4 6 § 7 7 7 10 16 30 33 vB ou 87 7 25 31° 35 5 5 7 7 6 6 30 20 15 17 16 17 2a 77 30 23 96 74 21 13 38 21 12 40 47 26 24 12 14 14 112 65 36 60 22 $2 96 8 116 15 10 45 7 10 35 40 22 24 ll 11 22 117 10 20 109 14 ll 25 gas ANVwOwWunLogm 62 39 18 13 10. 29 152 17 30 18 15 21 18 10 23 140 26 116 74 10 116 12 28 24 10 28 31 18 23 10 7 129 115 19 120 10 Ne noon w aenvevas v9 ®BR~ Sxase Qsnna WANARAW 112 14 15 10 12 15 20 13 30 15 14 100 125 33 44 102 62 21 49 10 25 26 7 32 10 10 40 10 30 35 67 101 NBO aD 14 40 51 62 15 v7 13 34 110 20 ll ll 17 32 16 40 26 15 37 10 35 69 19 80 101 25 10 60 67 46 $1 100 Nw 17 55 60 34 14 13 13 17 23 50 14 20 25 19 45 18 14 10 BRBEaSRwd8o Nn ~ - - ROWAN SMAWUNOSAWN MY SHaEBSkon ~ - he he ee BO YD hw OK OKDMWYERANUYSROWADN BH new aren ane an 34 38 35 29 15 33 16 14 1984 19 28 23 23 35 39 15 16 14 22 14 20 28 27 38 47 30 14 31 46 1985 31 bf Sr~SanmHH2am 34 18 22 13 u 43 41 30 21 14 37 1986 30 57 pO 13 3 3 39 19 13 39 89 13 48 104 33 19 82 30 35 13 31 16 11 7 74 31 31 27 18 13 23 43 22 ll 12 19 89 28 18 10 20 14 28 40 72 51 46 42 57 15 14 20 48 37 u 9 3 47 151 25 30 16 12 29 51 76 28 78 30 15 168 28 13 25 16 14 15 94 106 27 34 21 7 14 21 25 33 v7 25 52 90 25 14 18 12 28 36 74 44 46 45 62 14 34 66 61 26 10 7 3 49 88 20 25 16 12 20 37 67 30 37 84 23 12 6 4 130 8 23 44 15 18 4 32 13 67 78 25 38 18 16 14 19 19 35 6 6 31 7 20 77 56 6 60 11 7 4 9 24 32 59 36 51 50 63 15 31 39 46 21 10 6 10 BLACK BEAR LAKE PROJECT 6BL8190.0TT HEP DAILY FLOW INPUT FILE FILE NAME: $1 65 17 22 16 15 18 30 47 20 34 87 18 Df 6 4 53 13 46 29 16 28 12 30 13 45 49 32 31 7 v7 12 16 15 76 185 SXRSESSo 28 21 26 22 10 ll 46 57 v7 22 15 16 15 64 29 21 25 53 14 ll 5 4 27 25 109 21 v 50 14 28 15 49 40 40 27 16 16 ll 13 12 101 49 6 98 67 12 34 25 5 48 8 6 8 3 18 45 36 33 46 48 50 27 16 40 18 21 9 5 10 22 37 39 20 24 15 23 13 81 19 88 23 77 12 9 5 4 19 35 65 15 20 40 15 20 22 93 36 49 24 16 31 18 ll 10 60 74 6 45 41 ll 27 n wo LSSESELGeware em w wn —e wosoaws 27 48 38 23 18 2s ll 61 14 57 19 149 10 8 5 3 2 46 35 13 26 46 18 15 26 74 33 60 31 vv 7 109 14 8 43 79 6 27 33 10 40 23 4 29 8 5 9 9 19 83 34 51 46 44 co 17 23 38 45 22 34 20 ll 94 pO 35 16 70 9 9 7 3 29 90 23 12 42 45 18 12 27 46 33 66 49 7 71 167 19 6 49 42 6 7 22 9 36 19 4 24 7 5 8 14 21 66 36 87 59 38 29 16 10 43 62 15 5 3 6 23 37 40 a1 36 19 13 95 10 23 7 42 12 10 27 209 20 12 $1 31 15 11 25 37 35 61 38 16 41 91 18 43 24 12 18 77 14 73 15 19 56 86 71 31 31 32 10 26 42 15 5 3 5 23 47 32 27 28 2 12 105 18 18 65 23 10 20 97 18 12 37 15 ll 26 35 37 42 15 25 42 15 13 35 16 10 15 128 11 59 15 19 12 20 95 29 28 35 18 13 4 3 5 3 5 32 3 5 32 45 50 17 45 50 18 17 12 30 20 ll 56 15 15 31 15 36 23 60 30 22 21 28 26 34 14 26 5 e ~ n OYVOVVEAUUNY SO eee Dom wn 12 12 21 74 12 5b lu 28 33 25 31 18 15 lu 14 1987 22 70 19 21 34 193 ll 18 19 27 37 36 55 50 50 30 13 14 73 94 1988 102 38 20 15 69 13 8.1 8 5.5 21 16 7.8 55 14 32 40 35 72 30 23 23 10 17 40 46 ll 10 bt 28 30 28 36 v7 19 u 16 48 48 90 14 v 44 25 75 ul 18 19 19 36 27 57 86 38 27 12 13 44 78 91 30 23 13 15 7 8.7 5.1 19 24 21 34 15 24 28 30 71 14 22 79 12 43 16 40 33 29 24 16 21 pe 74 47 41 10 10 39 13 41 14 31 17 24 37 57 27 26 ll 29 89 28 25 31 24 19 5.5 12 6.2 71 7 28 19 19 7 41 41 26 28 38 64 7 14 18 4 50 69 16 31 v7 30 39 37 22 16 2 8 9 2 127 65 30 32 ll 28 14 25 26 16 43 25 39 25 24 10 28 69 22 41 26 7 v7 5 7 9.6 18 24 20 20 v7 45 45 25 23 BLACK BEAR LAKE PROJECT FILE NAME: 88L8190.0TT HEP DAILY FLOW INPUT FILE 87 8 14 15 4 38 44 18 23 19 24 44 59 22 16 27 7 8 57 161 176 10 39 22 ll 26 21 22 ra 14 54 27 47 23 22 10 22 47 57 7 50 23 v7 14 4.6 32 11 28 14 20 19 19 21 26 23 51 36 LU) 12 14 «(14 12 S 83 3948 30 22 27.34 17 «15 19 22 2 (31 44 42 69 53 2 19 15 14 24 (19 9 13 7 6 131) (71 98 65 112) «66 21 16 58 68 55 31 18 «25 17 24 35 29 21 «40 16 «12 4 4 6 8 19 21 12 «10 69 44 2730 44 «40 38 30 24 «(24 21 (18 9 10 8 7 17. . 14 3222 332i 15 30 33. 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32 30 59 26 50 22 7 28 ll 38 15 10 33 33 44 41 52 56 77 52 $1 14 ll 14 32 151 49 28 29 115 19 12 6.2 71 16 9.6 13 14 49 92 46 38 29 30 27 13 48 15 17 14 12 39 33 19 14 12 138 16 23 12 30 16 13 24 24 39 45 58 46 53 13 10 46 44 25 20 21 2 29 12 161 111 48 29 19 15 15 16 16 1989 1 37 2 19 35 24 «30 «34 102 82 2 50 45 #47 «56 27. 20 23 «28 «29 3 88 50 55 54 12 12 #13 «1 9.3 4 6.9 6.7 7.8 8.9 9.4 1 10 17 2 5 10 8.5 7.8 6.6 2.1 2 21.9 1.8 1.9 6 1.8 1.7 2.4 5.8 2.3 2.1 1.9 1.8 1.9 7 6.1 5.9 5.6 5.5 6.8 6.8 6.9 9.2 21 8 44 Sl 49 40 48 34 25 23 21 9 53 39 37 40 37. 29) «2623 10 18 #17) 16 «15 18 16 «14 «12~¢«212 n 7 7 8.4 10 6.7 6.1 5.7 5.5 2 12, 4.5 4.8 42 74 4.8 4.7 32 129 179 1990 1 2 #W 49 «47 14 26 «438 «#438 «632 2 43 «95 129 112 28 655 «667 «4126 3 39 112 121 107 47 32 23) 2825 4 46 33 21 #W 7.1 6.3 7.4 10 20 5§ 5.2 66 8 10 5.3 4.6 4.8 7.8 7.8 6 15 13 16 20 144° «14 «15 «17-20 7 17) 16 14° 12 26 39 «44 S47 8 19 18 25 36 27. 24 «2322 23 9 34 36 43 40 28 28 «428 «428 «(32 10 19 19 19 18 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89 46 94 21 ll 20 00 ll 13 39 ii) iii) iv) HEP OUTPUT FILES RESERVOIR ELEVATION OUTPUT TURBINE OUTPUT FILE SPILL OUTPUT FILE POWER AND ENERGY GENERATION OUTPUT 26 1981 1 45. 20. 40. 2 45. 45. 45. 3 13. 34. 22. 4 26. 45. 45. § 12. 45. 40. 45. 24. 7 16. 16. 15. 8 32. 26. 27. 9 2. 17. 16. 10 23. 19. 19. 1 17. Lye 17. 12 24. 38. 32. 1982 1 45. 2 3 31. 35. 35. 15. 10. 12. 5 12. 12. Zils 15. 8 22. 30. 9 35. 35. 10 40. 27. 1-17. ie 12 38. ~ 24. 1983 Lis 20. 20. 2 28. 15. 16. 23. 15. 12. 33. 5 23. 37. 30. 6 10. 15. 13. 7 15. 20. 45. 35. 9 35. 45. 45. 45. 45. 15. 19. 45. 12. 45. 16. 15. 15. 29. 23. 34. 15. 40. 19. 17. 17. 24. 27. 38. 45. 22. 15. 22. 23. 12. 12. 12. 15. 15. 22. 35. 35. 35. 35. 39. 17. 17. 38: 24. 25. 20. 25. 15. 10. 45. 22. 25. 1. 16. 45. 30. 35. 30. 45. 45. 45. 39. 11. 32. 45. 12. 37. 13. 15. 16. 26. 32. 35. 16. 40. 19. 17. 17. 24. 24. 22. 45. 17. 15. 16. 23. 12. 12. 1S. 15. 22. 35. 35. 35. 32. 40. 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NUE 38. 24. 45. 20. 15. 15. 12. 45. 15. 20. 13. 30. 15. 15. 23. 35. 32. 20. 45. 45. 33. 45. 45. 12. 21. 45. 15. 15. 25. 26. 17. 32. 19. 19. AZ 17. 38. 24. 20. 30. 35. 45. 45. 12. 15. 1S. 27. 35. 35. 35. 40. 1S: 175 17. 34. 24. 45. 20. 15. 15. 17. 32. 16. 40. 26. 15. 15. 37. 23. 35. 27. 20. 35. 45. 1g. 45. 45. 45. 25. 2s. 29. 15. 19. 29. 29. 16. 25. 19. 19. 17. 17. 38. 38. 20. 40. 22. 38. 45. 12. 15. 15. 22. 35. 35. 35. 40. 19. de 17. 24. 24. 45. 45. 15. 15. 21. 33. W7- 45. 22. 13. 15. 37. 27. 35. 30. 20. 45. 45. 45. 45. 45. 45. 45. 20. 15. 28. 29. Lz 19. 19. 17. 17s 38. 38. 45. 16. 45. 12; now 22. 35. 35. 34. 19. VE Ue 24. 23. 45. 15. 20. 25. 19. 45. 18. 14, 15. 32. 35. 35. 35. 35. 10 28. 19. 19. 11 28. 28. 28. 12 24. 24. 24. 1984 1 20. 20. 28. 22. 23. o Pa! wo w onwoo 13 Or ume - wo 4. 14. 16. 15. 32. 28. 35. 35. 10 38. 40. 40. 11 28. 17. 17. 12 31. 33. 38. 1985 1 31. 20. 20. 15. 15. 45. 45. 5 12. 22. 20. 6 34. 24. 18. 7 22. 15. 15. 35. 35. 35. 35. 10 40. 37. 40. 11 28. 24. 21. 12 24. 38. 37. 1986 1 30. 37. 45. 2 15. 18. 15. 9. 12. 412. 29. 21. 35. 22. 19. 27. 28. 37. 24. 21. 45. 35. 21. 45. 34. 17. 14. 22. 17. 15. 22. 35. 35. 35. 35. 23. 17. 31. 38. 28. 20. 15. 15. 10. 45. 12. 27. 22. 14. 19. 15. 22. 35. 35. 35. 40. 40. 28. 17. 24. 24. 45. 45. 15. 15. 23. 10. 17. 40. 34. 19. 19. 28. 28. 38. 24. 4s. 45. 19. 45. 30 35. 13. 31. 16. 15. 22. 35. 35. 31. 31. 27. 18. 17. 24. 22. 20. 15. 15. 12. 19. 45. 12. 28. 18. 10. 20. 15. 28. 35. 35. 35. 40. 40. 28. 17. 24. 24. 45. 37. 15. 15. 45. 16. 30. 30. 19. 19. 28. 28. 28. 45. 45. 30. 15. 45. 28. 4s. 13. 25. 16. 15. 22. 35. 35. 27. 21. 17. 17. 24. 25. 20. 15. 17. 25. 45. 45. 12. 25. 14. 18. 15. 28. 35. 35. 35. 40. 40. 28. 17. 45. 26. 15. 15. 45. 14. 22. 25. 19. 19. 20. 28. 38. 30. 45. 45. 23. 15. 45. 23. 15. 18. 15. 32. 22. 35. 35. 25. 19. 17. 17. 24. 24. 35. 20. 15. 31. 20. 45. 45. 12. 45. il. 15. 15. 24. 32. 35. 35. 40. 40. 28. 17. 31. 45. 21. 15. 15. 10. 45. 14. 18. 22. 19. 19. 18. 28. 38. 24. 34, 45. 18. 15. 9. 9. 45. 13. 45. 29. 16. 28. 15. 30. 22. 35. 35. 32. 31. 19. 17. 17. 24. 24. 45. 20. 15. 45. 45. 16. 45. 36. 12. 45. 9. 9. 15. 15. 22. 29. 35. 33. 40. 40. 28. 28. 24. 25. 26. 22. 15. 15. ll. 45. 9. 14, BLACK BEAR LAKE PROJECT 34. 24. 26. 17. 28. 24. 24. 20. 45. 23. 15. 9. 9. 16. 45. 16. 14. 2s. 37. 16. 15. 30. 33. 34. 35. 38. 19. 21. 28. 24. 24. 28. 20. 15. 15. 15. 9. 45. 10. 12. 17. 9. 27. 15. 28. 35. 35. 35. 40. 28. 28. 28. 24. 24. 45. 20. 15. 15. 9. 14. 45. 22. 35. 19. 36. 17; 28. 24. 24. 20. 45. 22. 15. 13. 45. 15. 19. 39. 15. 15. 33. 26. 35. 33. 33. 20. 25. 28. 24. 24. 22. 20. 15. 15. 16. 45. 23. 16. 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BLACK BEAR LAKE PROJECT FILE NAME: MOD4STUR.Q HEP TURBINE OUTPUT FILE (DAILY FLOWS) 30. 34. 45. 45. 45. 45. 45. 45. 45. 37. 27. 21. 28. 45. 45. 45. 45. 45. 35. 28. 27. 30. 32. 35. 39. 37. 20. 23. 28. 29. 33. 40. 33. 26. 21. 17. 32. 35. 45. 45. 45. 45. 45. 39. 26. 19. 26. 32. 33. 32. 32. 26. 12, 13. 11. 9. 9 9 9 9 9 9 9 9. 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Oo. 7. 17. 17. 17. 22. 28. 28. 23. 18 17. 17. 17. 17. 17. 24. 24. 38. 38. 38. 25. 24. 24. 24. 24. 24. 24. 24. 24. 32. 38. 38. 38. 38. 38. 30. 24. 24. 24. 24. 38. 1990 22. 20. 45. 45. 27. 41. 45. 45. 45. 45. 45. 45. 32. 26. 38. 38. 32. 29. 22. 20. 21. 45. 30. 20. 20. 21. 43. 45. 45. 45. 45. 45. 41. 45. 34. 24. 18. 16. 15. 45. 45. 41. 26. 19. 16. 15. 15. 15. 15. 45. 45. 45. 39. 45. 45. 45. 45. 40. 25. 20. 16. 13. 16. 18. 36. 32. 23. 28. 25. 21. 45. 45. 45. 45. 45. 45. 39. 31. 45. 33. 21. 17. 27. 32. 36. 42. 33. 24. 17. 13. 11. 9. 9. 10. 20. 22. 20. 18. 16. 14. 12. 11. 9. 9. 12.12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 12. 15. 28. 20. 15. 15. 15. 13. 16. 20. 32. 30. 22. 16. 14. 12. 10. 12. 15. 14, 15. 17. 20. 18. 14. 12. 10. 9. 9. 9. 16. 22. 17, 16. 15. 15. 15. 15. 15. 15. 15. 15. 15. 15. 15. 39. 44. 45. 45. 45. 45. 35. 27. 22. 20. 19. 19. 19. 22. 22. 25. 35. 35. 35. 35. 33. 31. 32. 34. 32. 32. 24. 23. 22. 23. 28. 28. 28. 26. 26. 28. 34. 35. 35. 34. 35. 35. 35. 31. 26. 23. 24. 25. 24. 25. 24. 23. 28. 28. 28. 32. 35. 35. 35. 32. 24. 20. 19. 18. 18. 19. 19. 19. 19. 19. 19. 19. 19. 19. 35. 30. 22. 21. 23. 19. 19. 19. 19. 19. 19. 19. 19. 19. 19. 19. 19. 17. 17. 17. 20. 19. 23. 27. 28. 28. 28. 21. 17. 17. 28. 28. 26. 20. 17. 17. 17. 17. 17. 17, 17, 17. 29.. 25. 26. 24. 34. 38. 30. 24. 24. 26. 24. 24. 24. 24. 24. 24. 28. 24. 24. 36. 37. 25. 38. 34. 24. 25. 38. 30 40. 29. 4s. 1g. 19. 12. 15. 35. 35. 35. 18. 19. 19. 17. 17. 24. 35. 22. 20. 15. 43. 45. 45. 12. 14. 21. 17. 20. 31. 35. 24. 18. 19. 19. 17. 25. 24. 38. 45. 25. 15. 14. 12. 15. 35. 35. 35. 19. 19. 17. 17; 24. 20. 20. 15. 45. 45. 12. 13. 19. 225 30. 35. 26. 19. 1g. Lv 21. 24. BLACK BEAR LAKE PROJECT MOD45SPL.Q FILE NAME: HEP SPILL OUTPUT FILE (DAILY FLOWS) Baconncsscwonscscscsccccscccc0c0d Om” Ot NN “ . . . OO ERO EH FOr ews ASM SM STO SOS SMOG NH ” 7 = “4 SSS SSO OSoScSCSO ecommoo0c0ccocccoccCoOcCOMNMSeCOCD aw nN eogococccceccecececCco¥accCce . . . . -O EN. oo occ oo ese @ BLACK BEAR LAKE PROJECT MOD4SSPL.Q FILE NAME: HEP SPILL OUTPUT FILE (DAILY FLOWS) 76. 24. so so o aN: SN OW NR OM -O et SsVo" oto So So SW SZ SAO AONS aN eM ee ew +O EM Or ew: SMSO TO SO STS MSZ SAGAS 32 ReeeneeeReeeeReETEED * POWER GENERATION * Saweeenereneaereeees FILES USED: PLANT DATA FILE: pintmod.45 FLOW DATA FILE: bb18190.ott OUTPUT FILE: bblmod4S.pow Black Bear Lake Hydropower Analysis 7044-001-002-13 PROJECT DESCRIPTION PIPLINE DATA PIPE LENGTH DIAMETER MANNINGS SECTION (FEET) (INCHES) FRICTION ELEVATION OF DIVERSION (FEET) = ELEVATION AT POWERHOUSE (FEET) = FISH RESERVE FLOW (CFS) = FISH RESERVE FLOW (CFS) = TURBINE EFFICIENCY CURVE: PERCENT FLOW EFFIC MINOR LOSSES 1687. 190. 20.0 15.0 45.0 45.0 10. 4.5 75.000 20. 9.0 80.000 30. 13.5 83.000 40. 18.0 86.000 50. 22.5 87.500 60. 27.0 89.000 70. 31.5 89.500 80. 36.0 89.500 90. 40.5 88.500 100. 45.0 87.000 GENERATOR LOSS= 5.0 PERCENT TRANSFORMER & SWITCHYARD LOSS = 2.0 PERCENT LINE LOSS= -0 PERCENT STATION POWER REQUIREMENTS = -0 PERCENT THE EFFECTIVE CAPACITY OF THE UNITS IS 4490 KILOWATTS 33 eeeeweeereereeereeet * POWER GENERATION * eeeeeeeeereeeeeereee FILES USED: PLANT DATA FILE: plntmod.45 FLOW DATA FILE: bb18190.ott OUTPUT FILE: bbimod45.pow Black Bear Lake Hydropower Analysis 7044-001-002-13 SIMULATED PRODUCTION IN MEGAWATT-HOURS 1981 2652.0 2794.1 1982 2027.6 2170.3 1983 2247.0 1287.1 1984 2516.0 1388.1 1985 2264.1 1356.5 1986 2347.7 1143.8 1987 2764.3. 1823.8 1988 2544.0 2443.5 1989 2586.1 2412.2 1990 2316.1 2251.5 AVERAGE 2426.5 1907.1 1693.0 946.9 749.3 630.3 1161.4 1315.4 2032.2 1622.3 1511.4 2611.0 1427.3 2573.4 1448.9 1550.3 1099.5 784.7 629.8 1714.9 1518.0 972.7 2105.2 1745.9 2013.4 2331.7 1542.6 931.0 1653.3 1374.2 2128.2 1912.6 1493.2 786.2 876.0 1312.8 1262.0 1205.0 776.8 629.4 1376.4 862.6 1173.3 1684.8 1286.0 1207.6 1127.1 1121.3 1755.0 1244.3 1173.9 1346.6 1755.8 1710.2 1324.5 1688.9 1424.8 NOTE: PRODUCTION IS COMPUTED FROM SYNTHESIZED DAILY FLOW RECORDS % OF THE TIME PLANT IS SHUT DOWN FOR LOW FLOWS: THE PLANT FACTOR IS .56 34 2249.3 2315.5 2474.6 2226.2 2260.6 2036.7 2498.8 2471.6 2357.2 2268.9 2315.9 1707.4 2580.6 2079.8 2487.0 2568.9 2227.7 2483.5 2525.9 2051.1 1996.6 2270.9 1626.6 2321.6 1721.5 2155.9 2862.2 1708.5 1910.0 2440.4 1424.2 1523.6 1969.5 1464. 1282. 1845. 1690. 1884. 1349. 1291. 1869. 1347. 1567. SYUOBBUNAeY 1559.3 2198. 2096. 2066. 1935 2083. 1904. 2412. 2213 2127. 2055. 2109. 4 23085. 8 19376. 5 20431. -5 22138. 3 22420. 0 20535. 5 23164. -4 23291. 3 19752. 9 21692. 4 21589. NOMAVYBH+-@OOnw o FLODUR PROGRAM OUTPUT FILES R45 BLACK BEAR LAKE PROJECT FILE NAME: MOD45TUR.FD FLODUR OUTPUT FILE black bear lake 4.5 mw minimum fish flows MONTH(S) SELECTED: OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP AVERAGE MONTHLY FLOW DATA ° 35.9 39.3 23.3 35.2 21.9 21.0 15.8 29.4 23.3 21.6 19.5 1982 22.1 27.1 30.4 13.0 15.2 12.1 9.0 15.8 30.5 35.0 30.7 lice 1983 23.1 30.3 17.9 10.5 = 23.1 22.5 13.4 24.3 32.5 28.2 22.8 24.2 1984 25.0 34.1 19.2 9.0 28.6 25.1 27.0 = 17.3 29.2 33.7 28.5 22.3 1985 25.5 30.4 19.1 15.9 31.7 23.1 12.8 16.4 29.7 34.8 38.1 24.7 1986 23.4 31.6 16.0 18.1 22.5 20.8 28.7 18.7 26.8 30.1 22.5 18.1 1987 26.3 37.6 25.4 27.3 25.8 22.3 11.0 24.1 32.7 33.6 25.2 17.4 1988 26.3 34.3 34.2 21.8 12.1 19.1 17.1 23.8 «= 32.4 34.2 32.2 24.5 1989 22.5 34.8 33.2 20.5 16.5 12.0 9.0 18.4 31.0 27.9 19.0 18.1 1990 24.7 31.2 31.6 35.4 18.5 13.2 15.9 23.6 29.7 27.1 20.2 20.8 AVERAGE 24.5 32.7 26.6 19.5 22.9 19.2 16.5 19.8 30.4 30.8 26.1 20.7 36 SHH DOWwWE Uo oy FLOW DURATION CURVE DATA w 121 362 ACCUM 3652 3652 3652 3652 3652 3652 3652 3652 3652 3652 3318 3285 3252 3074 3040 3006 2696 2405 2164 1960 1767 1468 1355 1175 1077 988 607 $72 451 376 362 PERCT 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 90.85 89.95 89.05 84.17 83.24 82.31 73.82 65.85 59.26 53.67 48.38 40.20 37.10 32.17 29.49 27.05 16.62 15.66 12.35 10.30 9.91 BLACK BEAR LAKE PROJECT FILE NAME: MOD45TUR.FD FLODUR OUTPUT FILE Qt BLACK BEAR LAKE PROJECT MOD4SSPL.FD FLODUR OUTPUT FILE FILE NAME: black bear lake 4.5 mw minimum fish flows spill MONTH(S) SELECTED: OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP AVERAGE MONTHLY FLOW DATA MAY JUN JUL AUG SEP APR FEB AVG oct NOV DEC YEAR WOONTDOANGCO _ om Oo wwoTMoONomMo 3.1 3.4 2.2 77 3.8 1.3 5.9 6.8 3.5 7.2 3.8 AVERAGE 38 BLACK BEAR LAKE PROJECT FILE NAME: MOD4SSPL.FD FLODUR OUTPUT FILE FLOW DURATION CURVE DATA 0 0 3106 3652 100.00 1 1 34 546 14.95 2 2 22 $12 14.02 3 3 17 490 13.42 4 4 20 473 12.95 5 5 26 453 12.40 6 6 16 427 11.69 7 7 14 411 11.25 8 8 12 397 10.87 9 9 16 385 10.54 10 10 18 369 10.10 ll ll 18 351 9.61 12 12 9 333 9.12 13 13 12 324 8.87 14 14 6 312 8.54 15 15 v7 306 8.38 16 16 19 289 7.91 17 18 24 270 7.39 18 20 13 246 6.74 19 22 19 233 6.38 20 24 17 214 5.86 21 26 ll 197 5.39 22 28 16 186 5.09 23 30 12 170 4.65 24 32 3 158 4.33 25 34 7 149 4.08 26 36 8 132 3.61 27 38 9 124 3.40 28 40 7 115 3.15 29 42 9 108 2.96 30 44 7 99 2.71 31 46 3 92 2.52 32 48 1 89 2.44 33 50 15 88 2.41 34 55 13 73 2.00 35 60 12 60 1.64 36 65 8 48 1.31 37 70 9 40 1.10 38 75 7 31 85 39 80 3 24 -66 40 85 4 21 58 41 90 3 17 47 42 95 3 14 38 43 100 2 ll -30 44 105 0 9 +25 45 110 1 9 +25 46 115 0 8 i 47 120 2 & -22 48 125 1 6 16 49 130 1 5 4 50 135 2 4 ol? 51 140 0 2 05 52 145 1 2 -05 53 150 0 1 -03 54 155 0 1 +03 55 160 1 1 -03 39 MONTHLY FLOW DURATION CURVES AT THE BLACK BEAR LAKE GAGE 40 FLOW DURATION CURVE AT RESERVOIR FOR JANUARY (S49) M01 41 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR FEBRUARY 4? % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR MARCH 42 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR APRIL CT ee. % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR MAY 45 100 80 60 40 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR JUNE A fi i 46 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR JULY (S49) MO14 47: % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR AUGUST |i ttt te {ttt ty BEREEEE, 100 80 60 40 20 Oo oO [o} ° oO oO Oo oO oO fo} a wo ~~ © wn + my N - (S39) O14 48 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR SEPTEMBER 49 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR OCTOBER (S40) Mold 50 % EXCEEDANCE AT RESERVOIR FOR NOVEMBER FLOW DURATION CURVE 100 80 60 40 20 51 % EXCEEDANCE FLOW DURATION CURVE AT RESERVOIR FOR DECEMBER 52 % EXCEEDANCE MONTHLY FLOW DURATION CURVES BELOW THE POWERHOUSE PROJECT START UP MODE 53 ° Pf ttt | ity, ttt ty | ty Ett ty PEt TT yt yy Ett Ty Ett Tt yA | PT ttt yA ef tty tt ° 5° ° ° O° ° ° ° °o °o a o Ss © wo + m N - 0 60 40 20 FLOW DURATION CURVE BELOW POWERHOUSE FOR JANUARY °o (S40) MOU 54 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE FOR FEBRUARY 55 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE 40 60 80 100 BELOW POWERHOUSE FOR MARCH 20 % EXCEEDANCE BELOW POWERHOUSE FOR APRIL FLOW DURATION CURVE Says» | pies | ° ° o ° °o ° ° o o o a @ ns wo wo + m N = (S49) MOM 57 100 80 60 40 20 % EXCEEDANCE 8S FLOW (CFS) FLOW DURATION CURVE BELOW POWERHOUSE FOR MAY % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE FOR JUNE (S49) MO14 59 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE FOR JULY 60 100 80 60 40 20 % EXCEEDANCE BELOW POWERHOUSE FOR AUGUST FLOW DURATION CURVE (S4d) MO1J 61 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE FOR SEPTEMBER Oo oO iS (=) oO °o oO S o oO a © nn © w + © N - ($40) M01 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE FOR OCTOBER oO oO oO oO oO oO oO oO Oo oO a oO n oO wo + © N = (S49) MO14 63 100 80 60 40 20 % EXCEEDANCE CCA CCA » OCC CECE CCA Coe CCE | et tet | FLOW DURATION CURV BELOW POWERHOUSE FOR NOVEMBER 100 80 60 40 20 % EXCEEDANCE BELOW POWERHOUSE FOR DECEMBER FLOW DURATION CURVE 100 80 60 40 20 % EXCEEDANCE MONTHLY FLOW DURATION CURVES BELOW THE POWERHOUSE PROJECT CAPACITY MODE 66 Pty Pettey ty SERRE 100 80 BELOW POWERHOUSE AT CAPACITY FOR JAN FLOW DURATION CURVE 90 Pitti tly [iii ty ERE, || | V at pb | oan 80 0 (S40) MO14 67 ° °o ° O° ° °o © wo + » N 60 40 20 % EXCEEDANCE 69 FLOW (CFS) FLOW DURATION CURVE BELOW POWERHOUSE AT CAPACITY FOR MARCH 1 % EXCEEDANCE 100 FLOW DURATION CURVE BELOW POWERHOUSE AT CAPACITY FOR MAY EEHEH, tt Yt | V ($49) Mold 71 40 20 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE AT CAPACITY FOR SEPT 100 80 60 40 20 % EXCEEDANCE FLOW DURATION CURVE BELOW POWERHOUSE AT CAPACITY FOR NOV So o o nn Oo 0 So °o wn + (S40) MO14 al 100 80 60 40 20 % EXCEEDANCE APPENDIX A AGENCY CORRESPONDENCE FEDERAL ENERGY REGULATORY COMMISSION WASHINGTON D C 20426 i { J tao HDR ENGINEERING, IN‘ 28 Project No. 10440-001-Alaska Black Bear Lake Project Alaska Power & Telephone Company Robert S. Grimm, President Alaska Power & Telephone Company AUG 16 I99l P. O. Box 222 Port Townsend, WA 98368 Dear Mr. Grimm: Your license application filed on May 24, 1991, fails to conform to the requirements of the Commission regulations. A list of deficiencies is enclosed as Schedule A. Under section 4.32(e) of the regulations, you have 90 days from the date of this letter to correct the deficiencies in your application. Further, under section 4.32(g), which allows the Commission or its delegate to prescribe a time for the submission of additional information, you have 90 days from the date of this letter to provide the additional information requested in Schedule B, which is needed by the staff to complete its evaluation of your application. If the correction of any deficiency or the submission of additional information causes any other part of the application to be inaccurate, that part must also be revised and refiled by the due date. Within 5 days of receipt, provide a copy of this letter and the attached schedules to all agencies you will consult in response to this request. Then, when you file the requested information with the Commission, you must provide a complete copy of the information to each agency consulted under section 4.38 of the regulations. Also, please be aware that further requests for additional information may be sent to you at any time before final action on your application. If an original and 14 copies of the information requested are not timely filed with the Secretary of the Commission, your application may be rejected. You are advised to contact Ms. Deborah Frazier-Stutely on (202) 219-2842 if you have any questions concerning what information must be provided. Since ’ Dean L. Shumway Director, Division of Project Review Enclosures: Schedule A Schedule B cc: Vernon Neitzer Vice President Engineering Alaska Power & Telephone Co. P. O. Box 459 : Skagway, Ak 99840 Mr. Neil Macdonald National Program Manager, Hydropower HDR Engineering, Inc. Suite 200, Building Cc 11225 S.E. Sixth Street Bellevue, WA 98004-6441 Schedule A Project No. 10440-001 DEFICIENCIES ie Under section 4.32 of the regulations, you must revise your application to include the following: (a) The names and mailing addresses of every person, citizen, association of citizens, domestic corporation, municipality, or state that has or intends to obtain and will maintain any proprietary right necessary to construct, operate, or maintain the project (4.32(a) (1)). (b) The names and mailing addresses of every county in which any part of the project would be located and any Federal facilities that would be used by the project (4.32(a) (2) (i)). (c) The names and mailing addresses of every city, town, or similar local political subdivision in which any part of the project would be located; or that has a population of 5,000 or more people and is located within 15 miles of the project dam (4.32 (a) (2) (ii)). (d) The names and mailing addresses of every irrigation district, drainage district, or similar special purpose political subdivision in which any part of the project, would be located; er that owns, operates, maintains, or uses any project facilities (4.32(a) (2) (iii)). (e) The names and mailing addresses of every other political subdivision in the general area of the project where there is reason to believe would likely be interested in, or affected by, the application (4.32(a) (2) (iv)). 2. The application does not conform to the requirements under section 4.61. Specifically, you failed to provide a project boundary that encloses all project works and other features described under exhibit A that are to be licensed. Therefore, exhibit G must be revised to show the project boundary around Black Bear Lake and the other project features (4.61(f)). Also, from your description of the United States lands your project would affect and from your project boundary map in exhibit G-1, it's unclear how much lake-side land around Black Bear Lake you have included in the project boundary. You must include lake-side lands in the project boundary to protect the scenic, recreational, and other environmental values of the lake. -2- Therefore, when you revise the exhibit G map, provide a project boundary that is wide enough to (a) allow public access and (b) include any lake-side lands suitable for future recreational development. Ask the Forest Service to comment on your proposed boundary and send us a copy of their comments. Schedule B Project No. 10440-0011 ADDITIONAL INFORMATION You have 90 days from the date of this letter to provide the following additional information. In some of the items listed below, you are asked to provide agency comments. You should make written requests for the comments and must allow a minimum of 30 days for agency response before filing the information. If the agencies do not reply, you should provide the Commission with dated copies of the letters of request. i. Your proposed project would modify the existing flow regime of Black Bear Creek, which could affect important anadromous fish habitat. In Exhibit E: Table E2-2, you propose to release specific minimum and maximum discharges from the powerhouse each month. This table does not provide us (the staff) with sufficient information to evaluate the impacts of your proposed operations on stream flow and downstream fish habitat. Therefore, you should provide us with the following additional information: (a) Monthly flow duration curves computed from the mean daily discharge records of the Black Bear Creek stream gage (b) Monthly flow duration curves of the mean daily discharge of Black Bear Creek below the powerhouse for both the "start-up" and "project-capacity" modes of operation, as described in your Lake Drawdown Analysis (appendix E-5). (c) An explanation of how the proposed minimum and maximum flows would ensure protection of downstream fish habitat. You should provide copies of this information to the Alaska Department of Fish and Game (ADFG), U.S. Fish and Wildlife Service, and National Marine Fisheries Service for their review, and include their comments with your response. 2. The Lake Drawdown Analysis (LDA). that you include as Appendix E-5 of your application is critical to our understanding of the effects of your rroposed project operations on water levels in Black Bear Lake and flows in Black Bear Creek. We have the following questions about the LDA. (a) Clarify whether the flow regime examined in the LDA is your proposed flow regime, as indicated in exhibit E, section 2.5, or is "for discussion purposes only", as indicated in appendix E-5. (b) The annual flow regime referenced in (a) above specifies 9 cubic feet per second (cfs) as the minimum discharge you would withdraw from Black Bear Lake and release from the -2- powerhouse into Black Bear Creek. However, your flow duration curve of project operations (appendix E-5, figure 5) shows that 9 cfs is not exceeded 100 percent of the time. Explain this discrepancy and clarify the minimum flows you would maintain in Black Bear Creek. (c) Although you say that your objective is to limit lake drawdown to a maximum of 15 feet (elevation 1,672 feet), you refer to a "probability analysis" that shows drawdown would exceed this amount in 3 percent of all years. Describe the methods and results of your probability analysis, indicating the minimum lake elevation you would maintain in all years. (d) The LDA includes analyses of "start-up" and "project capacity" modes of operation. Your lake level duration curves for the two modes show lower lake levels a greater percentage of the time under start-up mode than under project-capacity mode (appendix E-5, figures 6 and 7). Also, the accompanying text says the lake would exceed elevations of 1,672 feet and 1,679 feet 100 percent of the time under start-up and project capacity modes, respectively. Explain why you would withdraw more water from the lake under start-up mode than under project-capacity mode. (e) Provide a detailed explanation of the LDA simulation model, including all assumptions, constraints, methcdology, inputs and outputs used in the modified Hydropower Evaluation Program (HEP). 3. We are unable to evaluate some of your proposed wildlife mitigation measures without further information. Please answer the following: (a) How would you use the results of the proposed pre- project inventory and post-project monitoring of beaver populations? (b) How are the surface portions of the penstock "designed to allow passage of black-tailed deer"? Provide drawings of the design(s) chosen. (c) What specific measures would you implement in constructing the transmission line under your proposal to "comply with U.S. Fish and Wildlife Service Raptor Protection Guidelines"? - 4. You say that the project access road could lead to increased trapping pressure on beavers in the project area, whose ponds provide important rearing habitat for coho salmon. You propose to request the ADFG to prohibit beaver trapping in the area, but this measure alone may not sufficiently deter trapping. Therefore, you should investigate alternatives for controlling -3- unauthorized public access to the project area, such as locked gates on the project access road. Provide a description of the costs and expected effectiveness of the measures examined, or explain why such measures would be impractical. . 5. Additional information is needed to better understand your project. Please provide the following information: (a) provide information on energy conservation pursuant to section 10(a)(2)(¢c) of the Federal Power Act. (b) provide additional analysis and information regarding ' the Purpose of The Project on page A-12 of your application. Specifically, show how the project would initially replace 37,000 barrels of crude per year, and 70,000 barrels per year at full load. (2D) What is the source of the additional load? (ii) What is the time frame for full load operation? (iii) Are there contract negotiations to serve other loads in the project area? (c) provide the width of the right-of-way for the transmission line. 6. Because your proposed project includes federal lands within its boundaries, complete one of the enclosed land description forms, prepare a microfilm copy of the exhibit sheets (referenced on the land description form) mounted on aperture cards, and submit one copy of both the land description form and the aperture cards within 90 days from the date of this letter with the Secretary of the Commission. An additional copy should also be sent to the appropriate BLM state office. A list of the BLM state offices is enclosed. Complete the form for Rectangular Survey System lands if appropriate. If the lands cannot be described in the Rectangular Survey System complete the form for non-public land states. FERC-S87. Approvea 15.36 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Non-Public Land States (and Non-Rectangular Survey System Lands in Public Land States) STATE FERC PROJECT NO. FEDERAL RESERVATION FEDERAL LAND HOLDING AGENCY Counties Check one: Check one: License Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date Federal Tract(s) Exhibit Sheet Number(s) Identification or Letter(s) ee contact’s name tetephone no. date submitted LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) STATE FERC PROJECT NO. TOWNSHIP RANGE MERIDIAN Check one: Check one: License Pending Preliminary Permit Issued "If preliminary permit is issued, give expiration date EXHIBIT SHEET NUMBERS OR LETTERS contact's name telephone no. FERC-S87, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) Gate submitted Thie information is necessary for the Federal Energy Regulatory Commission to discharge its responsibilitie ALASKA ARIZONA CALIFORNIA COLORADO IDAHO MONTANA N. DAKOTA S. DAKOTA BUREAU OF LAND MANAGEMENT STATE OFFICES State Director Alaska State Office Bureau of Land Management Division of Lands and Renewable Resources (AK-930) Attn: FERC Withdrawal Recordation 222 W. 7th Avenue, No. 13 Anchorage, AK 99513-7599 State Director Arizona State Office Bureau of Land Management Division of Lands and Renewable Resources (AZ-930) Attn: FERC Withdrawal Recordation P.O. Box 16563 Phoenix, AZ 85011 State Director California State Office Bureau of Land Management Branch of Adjudication and Records Federal Building, Room E-2841 Attn: FERC Withdrawal Recordation 2800 Cottage Way Sacramento, CA 95825-1889 State Director Colorado State Office Bureau of Land Management Branch of Realty Programs (C0O-932) Attn: FERC Withdrawal Recordation 2850 Youngfield Street Lakewood, CO 80215-7076 State Director Idaho State Office Bureau of Land Management Land Services Section (ID-943A) Attn: FERC Withdrawal Recordation 3380 Americana Terrace Boise, ID 83706 State Director Montana State Office Bureau of Land Management Branch of Land Resources (MT-932) Attn: FERC Withdrawal Recordation P.O. Box 36800 Billings, MT 59107 (CA-943.5) -3- ARKANSAS Director IOWA Eastern States Office LOUISIANA Bureau of Land Management MINNESOTA Branch of Lands (ES-962) MISSOURI Attn: FERC Withdrawal Recordation DISTRICT OF 350 S. Pickett Street . COLUMBIA Alexandria, VA 22304 PUERTO RICO and all states east of the Mississippi River September 27, 1991 Mr. Michael Lunn, Forest Supervisor U.S. Forest Service Federal Building Ketchikan, AK 99901 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001-Alaska Dear Mr. Lunn: The Federal Energy Regulatory Commission (FERC), in their August 16, 1991 letter, requested that Exhibit G-1 be revised to show the project boundary around Black Bear Lake. The letter states that the project boundary must be wide enough to allow public access and include any lakeside lands suitable for future recreational development. In order to address this deficiency requirement, Exhibit G-1 has been revised to include an approximate 100-foot strip around Black Bear Lake, where practicable due to steep lakeside cliffs. The only area around the lake that is level and large enough for possible future recreation is the area around the existing USFS cabin. As mentioned in the License Application, no on-site recreational facilities are proposed as part of the hydroelectric project. To adhere to the deficiency requirement, however, the area around the USFS cabin will be included within the project boundary. The License Application states that if the proposed State selection takes place, the State would like to continue reserving the cabin, but will have a problem maintaining it. The Applicant has proposed to assist the State in the maintenance of the cabin in the event that the State selection does take place. Section 8 of the Initial Statement has been revised as follows: 8. Lands of the United States affected by the proposed project (shown on Exhibit G) are as follows: U.S. Forest Service Surface Penstock, Siphon Intake, and Black Bear Lake NE 1/4 of Section 12, T73S, R82E: Approximately 60 acres HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004-6441 Mr. Michael Lunn September 27, 1991 Page 2 . SE 1/4 of Section 12, T1T73S, RS82E: Approximately 65 acres SW 1/4 of Section 7, T73S, R83E: Approximately 45 acres NW 1/4 of Section 18, T73S, R83E: Approximately 115 acres NE 1/4 of Section 13, T73S, R82E: approximately 10 acres m= Transmission Line (10 foot right-of-way) Section 29, T72S, R81E: Approximately 1.4 acres NW 1/4 of Section 32, T72S, R81E: Approximately .10 acres Please provide us with written comments on the proposed boundary within 30 days following your receipt of this letter. We appreciate your review and look forward to receiving your comments. If you have any questions please call me or Debby Howe. Sincerely, HDR ENGINEERING, INC. Lvtlodleus lee Neil H. Macdonald ~ Project Manager NHM/dah Enclosure ce. Robert Grimm, AP&T Vernon Neitzer, AP&T x an Sw * 18 aa Na ne a i xisting State Highway l; yg. i . x we ~ - x " q " wy : . ros = =. TONGASS LE, \\ “Bex f \\\e Ta i 3 a . Sac = S NATIONAL a3 (O° 1 gs i p \\\\i| f a i ak , 1 : = FOREST LW) 21 WH AWE \ hy ee CBR OS Wa, C ( Ye! UW 7 : WHR: | Ny 7 : PROJECT sé Ketcnikan eee n o> ae / i - ‘ \ } 4 ‘ mn By: . \ — ‘ : AREA . \ / - —— . - Prince of ee VE / : Transmission Line >A a 2 Wb ace. BS OR SS NATIONAL F 4™.. AN MR 5 >= eA Existing State ASS . Ny BA 2 | SYS A ed ff ey \ SKS DOVNS gS KLAWOCK/HEENYA SY Wi MAZE / CORP, SPX 2 hee eM a OS eT) Surface | enstock Z=4 ‘ ‘ 4 . , vue \ ve, 3 QA SS LE, Klawock — |. : + / Myatt, REY EA i BS ae c s Se ag tC See eer eS) SAMY 2 . VR oe |. Cf : LA qa NU NIH LN 4 aX N A aS) p E = i Mi AWN ASN AE) AK 28" : ; Ki SZ - y LEGEND Sad ) BRS Project Boundary ' K ] Ki aM ) S@fP BLACK BEAR LAKE HYDROELECTRIC PROJECT Penk Prince of Woles isiond, Alosko ¥ fi FERC NO. 10440 ALASKA POWER & TELEPHONE COMPANY Port Townsend, Washington FACILITY LOCATION MAP EAR ingineering CERTIFICATION: THIS DRAWING IS PART OF THE APPUCATION FOR LICENSE MADE BY THE THES yz DAY OF 1991. NOTE: PORTIONS OF THE STATE HIGHWAY 0 se00 on ARE CURRENTLY BEING REALIGNED BY THE STATE DOT. TRANSMISSION LINES WILL FOLLOW THE ROAD. SCALE IN FEET e YASKAY POWER AND TELEPHONE COMPANY September 27, 1991 cy Ms. Jeannie Grant USS. Forest Service Craig Ranger District P.O. Box 500 Craig, AK 99921 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001-Alaska Dear Ms. Grant: The Federal Energy Regulatory Commission (FERC), in their August 16, 1991 letter, requested that Exhibit G-1 be revised to show the project boundary around Black Bear Lake. The letter states that the project boundary must be wide enough to allow public access and include any lake-side lands suitable for future recreational development. In order to address this deficiency requirement, Exhibit G-1 has been revised to include an approximate 100-foot strip around Black Bear Lake, where practicable due to steep lake side cliffs. The only area around the lake that is level and large enough for possible future recreation is the area around the existing USFS cabin. As mentioned in the License Application, no on-site recreational facilities are proposed as part of the hydroelectric Project. To adhere to the deficiency requirement, however, the area around the USFS cabin will be included within the project boundary. The License Application states that if the proposed state selection takes place, the State would like to continue reserving the cabin, but will have a problem maintaining it. The Applicant has proposed to assist the State in the maintenance of the cabin in the event that the state selection does take place. Section 8 of the Initial Statement has been revised as follows: 8. Lands of the United States affected by the proposed Project (shown on Exhibit G) are as follows: U.S. Forest Service Surface Penstock, Siphon Intake, and Black Bear Lake NE 1/4 of Section 12, T73S, R82E: Approximately 60 acres HDR Engineering, Inc. Suite 200 . Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004-6441 Ms. Jeannie Grant September 27, 1991 Page4 — SE 1/4 of Section 12, T73S, R82E: Approximately 65 acres SW 1/4 of Section 7, T73S, R83E: Approximately 45 acres NW 1/4 of Section 18, T73S, R83E: Approximately 115 acres NE 1/4 of Section 13, T73S, R82E: approximately 10 acres m= _ Transmission Line (10 foot right-of-way) Section 29, T72S, R81E: Approximately 1.4 acres NW 1/4 of Section 32, T72S, RS81E: Approximately .10 acres Please provide us with written comments on the proposed boundary within 30 days following your receipt of this letter. We appreciate your review and look forward to receiving your comments. If you have any questions please call me or Debby Howe. Sincerely, HDR ENGINEERING, INC. Kicklay tly e fer Neil H. Macdonald =~ Project Manager NHM/dah Enclosure cc. Robert Grimm, AP&T Vernon Neitzer, AP&T _— OT eS | 4 iin State Highway tL Ae Staa/ aK 1! . TFN vt TONGASS NATIONAL ORE eee aa JAS ap Si f r al HE (| Y Te =Transmission Line _ a : | ow Meee Be , TONGASS NATIONAL FOREST [Krt . AW oe ¢ FA SL T73 S : a ri so) { oF ; AAEM SF WES SAE State Hig aa a + \ SES 7 2 WS eS KLAWOGKTHEENYAS WUE Zu y | a Ge ‘Penstock GA. Sayer = WAS ez a WS) LEGEND Project Boundary WY ert BLACK BEAR LAKE HYDROELECTRIC PROJECT Prince of Woles tsiond, Alosko FERC NO. 10440 ALASKA POWER & TELEPHONE COMPANY Port Townsend, Washington FACILITY LOCATION MAP. Exhibit G-1 CERTIFICATION: ee NE yp ne a SL NOTE: PORTIONS OF THE STATE HIGHWAY 0 3000 6000 9000 6a , - “ARE CURRENTLY BEING REALIGNED BY THE a VbokS, = POWER AND TELEPHONE COMPANY STATE DOT. TRANSMISSION LINES WILL FOLLOW THE ROAD. SCALE IN FEET October 9, 1991 Mr. Jack Gustafson Department of Fish and Game 2030 Sea Level Drive, Suite 205 Ketchikan, AK 99901 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001, Station ID No. AK 880930-16J Dear Mr. Gustafson: In response to a request for additional information from the Federal Energy Regulatory Commission, dated August 16, 1991 (attached), we have prepared responses to specific items for your review and comment. These items are as follows: Schedule B, Number la, b, and c. Please review this material and provide written comments to us by November 9, 1991 at the letterhead address. The Applicant's responses to all items under both Schedules A and B, including responses to agency comments, will be provided to agencies at the time this information is filed with the FERC. If you have any questions, please contact either myself or Carl Smith at (206) 453-1523. Thank you for your continued involvement in this project and we look forward to hearing from you. Sincerely, R ENGINEERING, INC. . Neil Macdonald Project Manager NHM/las ce. Robert Grimm, AP&T Vernon Neitzer, AP&T Enclosure HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004-6441 October 9, 1991 Mr. Chuck Osborne U.S. Department of the Interior Fish and Wildlife Service P.O. Box 3193 Ketchikan, AK 99901 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001, Station ID No. AK 880930-16J Dear Mr. Osborne: In response to a request for additional information from the Federal Energy Regulatory Commission, dated August 16, 1991 (attached), we have prepared responses to specific items for your review and comment. These items are as follows: Schedule B, Number la, b, and c. Please review this material and provide written comments to us by November 9, 1991 at the letterhead address. The Applicant's responses to all items under both Schedules A and B, including responses to agency comments, will be provided to agencies at the time this information is filed with the FERC. If you have any questions, please contact either myself or Carl Smith at (206) 453-1523. Thank you for your continued involvement in this project and we look forward to hearing from you. Sincerely, Sy INC. Neil WL Project Manager NHM/las cc. Robert Grimm, AP&T Vernon Neitzer, AP&T Enclosure HDR Engineering, inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004-6441 October 9, 1991 Mr. Steve Penoyer, Director, Alaska Region U.S. Department of Commerce National Marine Fisheries Service P.O. Box 1668 Juneau, AK 99802 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001, Station ID No. AK 880930-16J Dear Mr. Penoyer: In response to a request for additional information from the Federal Energy Regulatory Commission, dated August 16, 1991 (attached), we have prepared responses to specific items for your review and comment. These items are as follows: Schedule B, Number la, b, and c. Please review this material and provide written comments to us by November 9, 1991 at the letterhead address. The Applicant's responses to all items under both Schedules A and B, including responses to agency comments, will be provided to agencies at the time this information is filed with the FERC. If you have any questions, please contact either myself or Carl Smith at (206) 453-1523. Thank you for your continued involvement in this project and we look forward to hearing from you. Sincerely, R ENG Neil Macdonald Project Manager NHM/las ce. Robert Grimm, AP&T Vernon Neitzer, AP&T Enclosure HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington 98004-6441 United States PYGINEERING, INC.!Region 10 Tongass National Forest Department of Service Craig Ranger District Agriculture P.O. Box 500 Craig, AK 99921 Reply To: 2770 Date: October 9, 1991 Mr. Neil H. MacDonald, Project Manager HDR Engineering Inc. Suite 200, Lincoln Plaza 11225 SE Sixth Street, Building C Bellevue, WA 98004 Dear Mr. Macdonald: In response to your letter dated September 27, 1991 we have reviewed your revised Exhibit G map showing project boundaries around Black Bear Lake. We have no objection to your proposed boundary. Currently the USDA Forest Service is managing lands surrounding Black Bear Lake. However most of these lands have been selected by Sealaska and the State of Alaska and we anticipate they will be conveyed sometime in the near future. Sincerely, B,=A 7 \eb—— fr GREGORY . GRIFFITH District Ranger November 11, 1991 ~ Secretary Federal Energy Regulatory Commission Attn: FERC Withdrawal Recordation DPCA HL21.3 825 N. Capitol Street NE Washington, DC 20426 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001-Alaska Dear Secretary: Enclosed please find an aperture card of the project boundary map and land description forms for the above-referenced project. The aperture cards and forms have been sent to you as requested in the Federal Energy Regulatory Commission letter of August 16, 1991 and received by HDR Engineering, Inc. on August 26, 1991. Please call if you have any questions or need additional information. Sincerely, HDR ENGINEERING, INC. o od :f & iah: res off Blot Deborah A. Howe Environmental Planner DAH/las cc. R. Grimm V. Neitzer Enclosure HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington aanna-R441 . FERC-587, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) STATE Alaska FERC PROJECT NO. 10440-001 TOWNSHIP 73S RANGE 82E MERIDIAN Copper River Check one: Check one: X__ License x__ Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date June 1, 199] EXHIBIT SHEET NUMBERS OR LETTERS Robert Grimm (296 ) 385-1733 11/14/91 contact’s name telephone no. date submitted This information is necessarv for the Federal Energy Regulatory Commission to discharge its responsibilities FERC-587, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) STATE Alaska FERC PROJECT NO. _10440-001 TOWNSHIP 73S RANGE 83E MERIDIAN Copper River Check one: Check one: X License X_ Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date June 1, 1991 EXHIBIT SHEET NUMBERS OR LETTERS ~ ty | L8| ) 12 A [18 | [16] [15] 13 A 19 20 [21 [22 | [23 | 24 . . | | . 1 ot ] Robert Grimm (206) 385-1733 11/14/91 contact’s name telephone no. date submitted Thie infarmatinn ie nanaceany fnr the Federal Fnerav Reaulatory Commission to discharge its responsibilities FERC-587, Approved 3/S/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) STATE Alaska FERC PROJECT NO. _10440-001 TOWNSHIP 72s RANGE 81E MERIDIAN Copper River Check one: Check one: X License Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date June 1, 1991 EXHIBIT SHEET NUMBERS OR LETTERS Robert Grimm 206 ) 385-1733 11/14/91 contact’s name telephone no. date submitted ~ ths Padaen! Cane Qaniilatans Cammiecinn tn discharae its responsibilities November 11, 1991 ~ State Director Alaska State Office Bureau of Land Management Division of Lands and Renewable Resources (AK-930) Attn: FERC Withdrawal Recordation 222 W. 7th Avenue, No. 13 Anchorage, AK 99513-7599 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001-Alaska Dear State Director: Enclosed please find an aperture card of the project boundary map and land description forms for the above-referenced project. The aperture card and forms have been sent to you as requested in the Federal Energy Regulatory Commission letter of August 16, 1991 and received by HDR Engineering, Inc. on August 26, 1991. Please call if you have any questions or need additional information. Sincerely, HDR ENGINEERING, INC. Kitoshd Neu Deborah A. Howe Environmental Planner DAH/Ias ce. R. Grimm V. Neitzer Enclosure HDR Engineering, Inc. Suite 200 Telephone Lincoln Plaza 206 453-1523 11225 S.E. Sixth Street, Building C Bellevue, Washington nonns CAAA FERC-587, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) state Alaska FERC PROJECT NO. 10440-001 TOWNSHIP _73S RANGE _82E MERIDIAN Copper River Check one: Check one: X__ License _xX_ Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date June 1, 199) EXHIBIT SHEET NUMBERS OR LETTERS Robert Grimm (206 ) 385-1733 11/14/91 contact's name telephone no. date submitted FERC-S87, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) STATE ___ Alaska FERC PROJECT NO. _10440-001 TOWNSHIP 73S RANGE 83E MERIDIAN Copper River Check one: Check one: X___ License X_ Pending Preliminary Permit Issued If preliminary permit is issued, give expiration date June 1, 1991 EXHIBIT SHEET NUMBERS OR LETTERS Robert Grimm (206) 385-1733 11/14/91 contact’s name telephone no. date submitted ae Pea iacinn tn dienharne its responsibilities FERC-5S87, Approved 3/5/86 OMB No. 1902-0143 (Expires 12/31/86) LAND DESCRIPTION Public Land States (Rectangular Survey System Lands) PUAPE i Ea eeu, FERC PROJECT NO. _10440-001 TOWNSHIP 72S_———s—“C‘CWRRANGE_—81E_——CéC«M@RRXIDIAN Copper River Check one: one: X License Pending Preliminary Permit —— Issued If preliminary permit is issued, give expiration date June 1, 1991 EXHIBIT SHEET NUMBERS OR LETTERS Robert Grimm L (206 ) 385-1733 11/14/91 contact’s name telephone no. date submitted ~athilitiae UNITED STATES DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service P.0. Boz 21668 Juneau, Alaska 99802-1668 October 16, 1991 Mr. Neil Macdonald Project Manager HDR Engineering, Inc. Suite 200 Lincoln Plaza 11225 S.E. Sixth Street, Building c Bellevue, Washington 98004 Re: Black Bear Lake Hydroelectric Project FERC Project No. 10440-001, Station ID No. AK 880930-167 Dear Mr. Macdonald: We have reviewed your response to Schedule B items la, b, andc and have no substantive comments. We appreciate the opportunity to respond. Sincerely, Steven Pennoyer Director, Alaska Region cc: FERC, D.C., Portland STATE OF ALASKA / “= DEPARTMENT OF FISH AND GAME 2030 SEA LEVEL DRIVE SUITE 205 Heeriy KETCHIKAN, AK 99901-606 & & I. cara PHONE: (907) 228-2027 i | i | RING, INC. November 5, 1991 jHOR ENGINEE: Mr. Neil Macdonald~: - HDR Engineering, Inc. Lincoln Plaza, Suite 200 11225 S.E. Sixth Street, Building Cc Bellevue, Washington 98004-6441 Re: Black Bear Hydroelectric Project AK880930-163, FERC Project No. 10440-001 Dear Mr. Macdonald: Thank you for asking for our comments on Schedule B, Number la, b, and c of the request for additional information by the Federal Energy Regulatory Commission. The questions presented for review are good ones. I interpreted the FERC information request, especially Schedule B, Item 1(c), as a request to explain and possibly quantify fisheries impacts due to changes in flow conditions. It perhaps may not be clear from the explanation provided, though, how draw- downs and fluctuations in flow would specifically impact or protect rearing and spawning areas. For example, it was difficult to discern from the discussion which portions of habitats in the Black Bear Creek complex would be dewatered under normal flow conditions, and how the location and amount of mortality to incubating eggs and rearing juveniles would change as a result of flow alterations. As I understand the situation, you propose to equal or exceed a discharge of 9 cfs all year during the project capacity mode. Following project implementation, you do not propose flows less than 9 cfs, which in some years is better than the natural flow conditions. This appears to be the reason for stating that stream levels would be higher than normal during the winter low flow period, resulting in potential benefits to incubating eggs and rearing juveniles. Please correct me if this interpretation is not accurate. Thank you for the opportunity to comment on FERC's informational request. Mr. Neil Macdonald -2- November 5, 1991 aie Jack Gustafson Area Habitat Biologist cc: Rick Reed, ADF&G, Juneau Lorraine Marshall, DGC, Juneau Elena Witkin, ADEC, Juneau Chris Landis, ADNR, Juneau Chuck Osborn, FWS, Ketchikan Tamara Farris, NMFS, Juneau _ APPLICANT RESPONSE TO ALASKA DEPARTMENT OF FISH AND GAME LETTER DATED NOVEMBER 5, 1991 The portion of Black Bear Creek subject to dewatering by the project diversion is the area between the base of the Black Bear Lake Falls and the powerhouse. This area is significantly dewatered under natural conditions by the infiltration of creek flows into the naturally occurring subsurface aquifers. This area of Black Bear Creek upstream of the powerhouse has been shown to be of little or no discernable use to fish. All project flows discharged from the tailrace will be available to the subsurface aquifer and to the upwelling area. You are correct that under project conditions, minimum flows discharged from the powerhouse will not be less that 9 cfs 100 percent of the time. The monthly flow duration curves for the outlet of Black Bear Lake shows that under natural conditions (Page 40), minimum flows fall below 9 cfs for some percentage of time in every month of each year except May and June. By using lake storage, the project flows will meet or exceed 9 cfs 100 percent of the time. Additionally, from reviewing the monthly flow duration curves for project startup (Page 53) and project capacity modes (Page 66), it can be seen that the 9 cfs minimum will generally be exceeded by a significant amount. We have revised our response to FERC's additional information request 1.(c) (Page 3) to include and expand on this information. We hope the revised response, in addition to this response, clarifies how project flows would protect downstream fish habitat. If questions remain, we welcome your inquiries.