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HomeMy WebLinkAboutUnalaska Geothermal Project Phase IB Final Report Volume 2-A 1983Alaska Power Authority UNALASKA - GEOTHERMAL PROJECT PHASE IB FINAL REPORT Volume 2-A April 1983 By: Republic Geothermal,Inc. For: The Alaska Power Authority pet ee ar wee me UNA 005 pt.2 of Vol.2 c.2 DATE ISSUED TO HIGHSMITH 42-225 PRINTED INU.SA. Appendix P=-8 United States Environmental Protection Agency National Pollutant Discharge Elimination System Permit RECEIVED JUL D 1¥03 US.ENVIRONMENTAL PROTECTION AGENCY EGION XJreoS%ey R 2 %1200 SIXTH AVENUE <z3WZ3 SEATTLE,WASHINGTON 98101 %=wy,of4kprot® MTN OF;M/S 521 JUN 3.0 1983 Timothy M.Evans,Vice President Republic Geothermal,Inc. 11823 East Slauson Avenue Santa Fe Springs,California 90670 Re:NPDES Application No.:AK-003956-0 Dear Mr.Evans: We have received your National Pollutant Discharge Elimination System (NPDES)permit application identified by the above referenced number,and have determined that,for administrative reasons,we will not issue an NPDES permit for your discharge at this time. However,during your geothermal explorations at Makuskin Valley on Unalaska Island,your facility is expected to comply with the following requirements: 1.The State of Alaska Water Quality Standards shall be met except for total dissolved solids and temperature at the point of discharge. 2.The maximum flow rate shall not exceed 0.18 cubic feet per second. 3.There shail be no discharge of drilling muds or cuttingsto thereceivingwater. 4,Discharge outfalls shall be placed to minimize sediment and temperature impacts to the receiving water. 5.Notification of the EPA,Alaska Department of Fish and Game and other involved agencies if suspended solids are significantly different from predicted levels. 6.There shall be no discharge of pollutants after September 30, 1983. If you have any questions,please contact our office at (206)442-1272. Sincerely, Harold E.Geren,Chief Water Permits and Compliance Branch cc:Tawna Nicholas,Republic Geothermal Steve Grabacki,D &M Kim Sundberg,ADFG Robert Flint,ADEC . Dianne Soderlund,AOQO . fNiSURVEYedRINORTHPACIFICAERby"Prepared=e rn 7 53°50!Bao S!5a aa 187 , -167° "4.950,009 : { 166°55: ; LEGEND doo a.Loe -FUMAROLE GROUP | ©HOT SPRINGS GROUP yy ANOMALOUS THERMAL AREA ¢LITHOLOGICAL SAMPLE # 168°sor-(4 GEOTHERMAL MANIFESTATION : BOUNDARY a :| *4,980,009 | On | UNALASKA ISLAND,ALASKA ;BERING SEA eo[pe oem oe oe oe oe ad -|ons 1s BERING SEA y | | I Coot,: I MAKUSHIN BAY == ;oy | ner 6963 Scale 124,000 -! 2000 1000 0 2000 4000 6000 |8000 :wees eee:eee bee eremansinasiee!ELEVATION CONTOUR INTERVAL -40 FEET PL f\TE er'Declination:|5°East|[MANIEESTATION”BooNDAeY COC VIRB REPUBLIC GEOTHERMAL,INC. °, : - 11823 E.SLAUSON AVE.,SANTA FE SPRINGS,CA 90670 (213)9453661 eee "GEOTHERMAL MANIFESTATIONS IN MAKUSHIN VOLCANO GEOTHERMAL AREA UNALASKA ISLAND,ALASKA | DRAWN aY:CPC pate.DEC./82 - CHECKED SCALE -1:24,000 ,|DESCRIPTION ay |DATE |appRoveD:OWG NO. 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DRAWN BY: a CONTOURS DRAWN AT 3,5,7 AND,0°9 TIMES THE BACKGROUND MERCURY CONCENTRATION. LEGEND %THERMAL GRADIENT HOLE (ppb) if ©MERCURY CONCENTRATION IN SOIL an BAY of, a_ a Fe OD Sb negwiees AE .VA csTuscare Cei ns Neeadie Rock LEN;4 aO4EOR Pont . if 35) UNALASKA nomen meee oe CAPTAINS 166° G 'esa. 156° PointDeveifisn3 MA,\NO SyYALLEMAKUSHIN'V)meio oof 2 aot PORTAGE nk.»hp gettoete M a.¥ a t "NSyl) 4 OO : ra L .3in RNG Cannery Point Nee P AN i t + ACIER VALLEY y x IN od 7 7 a t "f=84°00 Ao L .dk are 5te°SO me MeyCeesatin Wt Ee ed imshmans Hat 4 ees "a a "t me ae Y DRIFTWOOD BA . { benkof fr Ye n t Te ALY:\ pint BACK NYON' Aa ceTTNS'WSs M 'YoHL & ANO Getf "FOXCA ”"as es Poxushin Sos - a ee vo er fakig.ee ig » ae:od i aethewS ws ype?Ie,PPOD tee © wd:Of Makushin Pointca MAKUSHIN ie 5 aegs 1S 7°QS! i i VOLCANO "is=§3B 67710 sy orentB77 t ae &alDOGS, 4 eee vy!f hal aE abe ay Tey wee ES 2 LES : or ane . ' a ii ° sania aia ee puinnhainiin ae iciiliiseghapeeinasnniaseaninnenendmintiy ' Se ca ¢. a £ | J : i ok, t t - i : poe 4 i ' Pa ----_--_- = a _ _ _ _ tee f UNALASKA ISLAND,ALASKA BERING SEA o oe ee oe ee es oe e+I :5W 6W -100 LEGEND 53°55!166°35' " act C363 167°00!_ ; |rere ||7 54°00! | 1655 _oe _cel |a , | 54°00 :| aan | | |a ees a |-|a 7 RGGI 5492)20F4RGI5492)30F4 oe PLATEIVPLATE SELF-POTENTIAL CONTOUR edema SELF-POTENTIAL SURVEY LINE (A)SELF-POTENTIAL SURVEY REFERENCE POINT 167°10!_:53°55!y 0 5 1 2 3 4 kilometers | SCALE | ,, -ELEVATION CONTOUR INTERVAL -100 FEET -Self-potential contour interval 100mv | Self-potential contours dashed where inferred -Elevations in feet 167°00'--53%45' Harding Lawson Associates SELF-POTENTIAL SURVEY PLATE Engineers,Geologists LINES AND CONTOURS }a:- &Geophysicists Makushin Volcano Area| '¥ ! | Unalaska Island,Alaska"3 DRAWN ;JOB NUMBER APPROVED DATE K.O'Neill 10036,00401 RF Conn 6/3/82 REVISED DATE REVISED DATE -1 :--, i .me s Vw =:..:ii”i ;";1 \/ Sy 3-| ;i ° * P . | ) > . : | , a)'a) ; | oe : | | : x) . : |L i* | - | pros wy H"H>2 : , sLu: :-ys : : O° 8Ww . cc : o Wee . t nn ! : \ : gz 'O aiT . =.={ aiw ; Soff a oe ecr | | Oo :a _ Aa=z"ead} a& o= . oe 26 Ss =<8 tw <Lu= " a and -: Q &§& Lu Oa ; real c'Ys S£3 | = -_ sz | < 7. | , . 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Ey = ONL ASAYNS WINSy DslOVd HLYON- Aq peiwdsig | LEGEND |---- AIRPHOTO LINEAMENT ©-AIRPHOTO CIRCULAR FEATURE bd ¥FUMAROLES ---INFERRED AIRPHOTO LINEAMENT TEMPERATURE GRADIENT HOLE LOCATION A SUGARLOAF CONE SUMMIT ===ROAD 7 COAST LINE UNALASKA ISLAND,ALASKA / PAKUSHIN CONE ma \| / 1823 E.SLAUSON AVE N »REPUBLIC GEOTHERMAL,INC.AVE., SANTA FE SPRINGS,CA 90670 (213)945-3661) 'AIR PHOTO LINEAMENT INTERPRETATION | MAKUSHIN VOLCANO GEOTHERMAL AREA _ UNALASKA ISLAND,ALASKA FROM 1:24,000 SCALE COLOR:PHOTOS DRAWN BY:RGI STAFF 'DATE:1982 | "ScALe:.1:24,000 -|DWGNO.| FUMAROLE #3 FUMAROLE a2 _-- BROAD BAY ; i oye Og rer Ue ne are i a oa " Oo=- :hes, _ YQ2te ; MNia in >Ww:w | 1 Zz=<OF | 7 ti <«s .:Nae cc6-O oe O£0«a"ces 3}> §o EE | OF >=> as A a|oO-<<, Spee Pe z Oo9 icy? ro / fs & 4 UNALASKA ISLAND,ALASKA BERING SEA iorsss|BERING SEA MAKUSHIN BAY 2a gcr C96) NORTH ELEVATION CONTOUR INTERVAL -100 FEET SCALE 3 KILOMETERS2 GRAVITY AFTER J.W.REEDER,DGGSPLATEIX_ REPUBLIC GEOTHERMAL,INC... 11823 E.SLAUSON AVE.,SANTA FE SPRINGS,CA 90670 (213)945-3661 UNALASKA COMPLETE BOUGUER ANOMALY MAP NORTHERN PART OF UNALASKA ISLAND¢ DATE:1982 SCALE:50,000 ¥Z0F493DWGNO54 DRAWN BY:RGI STAFF DGGS_CHECKED: APPROVED: € as'sO on @, C - . > C pom Fed Pon Z . & © wwND : - a w I oo© a'". on , 4i"2 : ir ' .A w=Q yt- wf a au™ty ' x ee ee ait ae z ' > ' Oo bdoASI= ; Pnre BG EF fF BAYUNALASKA adktqHet = MoRush noM50. ra Rocorouscarcat Poi 7 wee 4 a) 3 4ov ce)©eaefbs w 7 a© fo. gai 2 " = ePoa ' A \ : t66°55I \ .IOaodel ay - wo a =,ve]aeweeseatt . 4 NATEEKINNo ak"cd A j"SUT AMOKD 'olMO c APTAINSCo feng ng Ba Staples easboos « aeaeee be ee: 4 fo. er ifphoneg¥v =Ee hin tikeee anemin Wale 7 ps Cad af t Teg te ' a a aad EF é " 8 = vtCowGo:¢ :Notmn 5$ t , :E...oe|a|4: '@ i + "oy Bof|& aa ; ; . a oa y rad ' we ; Pes ' :| de . . 2 "mas' * on oy a " " Bete \* oF : + ' om © \ ' t 4oN f . we i Bg eae | Bog| Vas ae eee : scat n . sii iio ini sialic - : a,*os? ry ,POMS VOMCANO GPA HUM PRBACS MAKUSHIN PORTAGEA Cannery Point or