Electrical Power for Valdez and the Copper River Basin-1981

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AVERAGE MONTHLY PRECIPITATION(inches)ValdezCordovaJan 5.06 6.14Feh 5.30 6.42Mar 4.33 5.89Apr 3.06 5.71l"1ay 3 .20 5.99,lu n 2.70 4.67Ju 1 4.31 7.08Aug 5.80 8.94Sep 7.74 13.53Oct 6.75 12.34Nov 5.67 8.37Dec 5.39 7.45ANNUAL 59.31 92.53These data were collected by the National Weather Service and theFederal Aviation Administration for Valdez and Cordova respectively.Snow:Snowfall records are available in the vicinity of Valdez~Glennallen.Snowfall is generally confined to October through April and comprisesapproximately 27 percent of the mean annual precipitation.Snow course data for four stations within the basin are presented inthe following tahulation.Snow Cours eYears ofRecordElevation(ft) MSLAverage WaterContent Per Month(inches)MarchApri 1MayTsina RiverWorthington GlacierLowe RiverValdez721771 ,5002,4005505013.616.914.315.714.920.515.218.013.823.21 3. 118. 1lThe water content of the May snow mass provides a good index ofexpected spring runoff.Wind:The wind records available are scarce. The National Weather Servicemonitors the station in Valdez which has about 3 years of data. Observationsthere indicate that the highest winds occur between October andA-4
April. The winds tend to follow the contours of the terrain and, thus,adjacent areas can have average winds of opposite direction. The followinqis the average fastest 1 minute wind speed for the period of record.AVERAGE WIND SPEED (MPH)JanFebMarAprMavJunJul~gSepOctNovDec2325252520181819192n2627Storms:Because of the dominating maritime influence, thunder and hail stormsrarely occur in the study area. ~wever, the area is subject to fall andwinter storms of heavy precipitation intensities. These storms arecyclonic in nature and are generated by the semipermanent, Aleutian lowpressure system. This cyclogenesis takes place as a result of the coldflow of southeasterly air from Asia, which generates a wave on the polarfront. These storms move eastward from their point of origin into theGulf of Alaska, where they cause high winds and low ceilings for a periodof 2 to 3 days. Storms of this nature usually cause copious amounts ofprecipitatio~ to fallon the coastal mountain ranges.STREAMFLOWRunoff characteristics for the study area vary substantially betweenthe coastal and interior regions. Tn the coastal region, the maritimeinfluence areatly increases the runoff per square mile and also changesthe ti~ing of high flood flows from those experienced in the interiorregion. While flood peaks do occur in May and June, due to snowmelt, theyearly maximum peaks generally center around the month of September.Streamflow records were available for several streams, in the studyarea. In all, a total of five streams were used for alternating flows.Two streams in the immediate vicinity of Valdez which have been gagedby the U.S. Geological Survey are Lowe River and Solomon Gulch. Inaddition, several other streams between Valdez and Glennallen have hadstreamflows recorded by the USGS. Two of these, Klutina River andTonsina River, are close to sites considered in the present study. Thereare discharqe data for each station and some measurements for chemicalconstituents and water temperature. The recorded monthly runoff for theA-5
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E---~for-~-~and the Copper River B-
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SYLLABUSThe geographic area conside
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SOUTHCENTRAL RAILBELT AREA. ALASKAI
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INTRODUCTIONDue to continued growth
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The city of Valdez conducted enviro
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FIGURE I:HYDROPOWER STUDY AREAFOR V
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oard feet of hardwoods, half of whi
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VALDEZ
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ALYESKA PIPELINE TERMINAL
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Other Activities:Nonseasonal stable
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Table 3Historical Population of Val
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Transportation and Tourism:Detailed
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The following tables show the futur
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framework of the study authority an
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Nucl ear:Nuclear energy development
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lntertie:With the deciSlon by the C
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If the powerhouse were moved to jus
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CONSERVATION:Description:THE NONSTR
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TRANSMISSION INTERTIEDescription_:T
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impaired. As a result, standoy gene
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ALLISON LAKE
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From the time of pO\'Ier-on-line, o
Page 46 and 47: Technical services such as electron
Page 48 and 49: 175150FIGURE: 2ENERGY DEMAND - REVI
Page 50 and 51: 175150FIGURE: 4ENERGY - REVISED APA
Page 52 and 53: SYSTEMOF ACCOUNTSAccountsPlan AAll
Page 54 and 55: AccountsPlan A.All Diesel Generatio
Page 56 and 57: then be determined for the 100-year
Page 58 and 59: Comnents received from the city of
Page 60 and 61: FINALENVIRONMENTAL IMPACT STATEMENT
Page 62 and 63: LIST OF PRFPARERSNameExpert i seExp
Page 64 and 65: COMPARATIVE IMPACTS OF ALTERNATIVES
Page 66 and 67: AREAS OF CONTROVERSYTo date no spec
Page 68 and 69: COVER SHEETLIST OF PREPARERSFINAL E
Page 70 and 71: A. NEED FOR AND OBJECTIVES OF ACTIO
Page 72 and 73: alternative has been estimated to p
Page 74 and 75: slopes surrounding Allisorl Lake ar
Page 76 and 77: weir to the mouth, with the majorit
Page 78 and 79: expected to Allison Creek below All
Page 80 and 81: 2. Biologicala. Vegetation:,r-.Hydr
Page 82 and 83: Waterfowl and water related birds f
Page 84 and 85: within the local community. The imp
Page 86 and 87: Cumulative impacts to the Port Vald
Page 88 and 89: Program-related issues. The Alaska
Page 90 and 91: 13.10INDEXSubjectsAffected Environm
Page 92 and 93: APPENDIX AHYDROLOGYTABLE OF CONTENT
Page 94 and 95: snowfields and glacier areas on the
Page 98 and 99: gages at Lowe River near Valdez, Lo
Page 100 and 101: were estimated based on Tonsina Riv
Page 102 and 103: 'fUR r)c r ,-. n:c JA~ FEEl "'A~ AP
Page 104 and 105: --..,I-J--. -,-- - ----- - --TONS I
Page 106 and 107: ALLISON CREEKESTIMATED STREAMFLOW -
Page 108 and 109: APPENDIX BEXISTING SYSTEM ANDFUTURE
Page 110 and 111: IIHf{ODUCTIONThis section is devote
Page 112 and 113: FIGURE: B-1PRICE INCREASES OF DIESE
Page 114 and 115: Installed Generat.or Peak Energy fo
Page 116 and 117: 90008000700060005000- 4000 ~..-:300
Page 118 and 119: Table 4VALDEZ-GLENNALLEN AREA UTILI
Page 120 and 121: As footnoted, the Alaska Power Admi
Page 122 and 123: 201510CDI5.: ...:.T. .' !', ~. '.,
Page 124 and 125: SOLOMON HY I.IICU'-__'lOUIE 1-7 MlN
Page 126 and 127: , .. ,·.AYI.AG! fOWl. DlMANO WHit,
Page 128 and 129: The following is an excerpt from th
Page 130 and 131: Power Requirement Study (excerpt)GL
Page 132 and 133: APPENDIX CECONOMIC EVALUATION
Page 134 and 135: INTRODUCTIONThe purpose of this sec
Page 136 and 137: value of 66.92 mills/kWh. This figu
Page 138 and 139: FIGURE C-2: SOLOMON GULCH ALLISON L
Page 140 and 141: Er.Jployment Benefits Computation (
Page 142 and 143: energy would be fully utilized. As
Page 144 and 145: ECONOMIC EVALUATION OF HYDROPONER M
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ECONOMIC EV~LUATION OF HYDROPO~ER M
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------~-~ECONO~IC EVALUATION OF HYD
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ECONOMIC EVALUATION OF HYDROPO~ER M
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ECONO~IC EVALUATION OF HYDROPOwER M
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APPENDI X DPROJECT DESCRIPTION AND
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POWERHOUSETypeTRANSMISSION LINEVolt
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POWERHOUSETypeTRANSMISSION LINEVolt
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VALDEZ HYDROELECTRIC POWER PROJECTG
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turbine. The penstock would bifurca
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TABLE D-lSUMMARY COST ESTIMATEOCTOB
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TABLE 0-3DETAILED COST ESTIMATEVALD
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TABLE D- 3 (cont)Cost Unit Tota 1Ac
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TABL E D-4DETAILED COST ESTIMATEVAL
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TABLE D-4 (cont)Co st Unit Tota 1Ac
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, ..... ,..\ (I),;> "----f .'-.. -I
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"'~~TAPANDROCK TRAP1600.•. -~ "00
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CORPS OF ENGINEERSU. S. ARMY./f----
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APPENDIX EENVIRONMENTAL DATA
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TABLE 1ATEMPERATURE RECORDING OF AL
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TABLE 1A (cont)ALL! SON CREEK (cont
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TABLE 1A (cont)ALLISON CREEK (cont)
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ALLISON CREEK (cont)FEBRUARY HIGH L
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ALLISON CREEK (cant)TABLE lA (cant)
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TABLE 1A (cont)ALLISON CREEK (cont)
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TABLE 1A (cont)SOLOMON CREEK - HIGH
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TABLE 1A (cant)SOLOMON CREEK (cant)
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TABLE 1A (cont)SOLOMON CREEK (cont)
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TABLE lA (cont)SOLOMON CREEK (cont)
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TABLE 1A (cont)SOLOMON CREEK (cont)
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SOLOMON CREEK (cont)TABLE 1A (cont)
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TABLE 2ACalculated Flows of Allison
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TABLE 2BCalculated Flows of Allison
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TABLE 4AWater Quality Data of Allis
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TABLE 4A (cont)PARAMETERCalciumMagn
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TABLE 4A (cont)PARAMETERTurb i d it
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TABLE 4A (cont)PARAMETERTurb i d it
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TABLE 4BALLISON LAKEWA TER QUALI TV
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TABLE 6BIRDS OF THE PORT VALDEZ ARE
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Oregon JuncoTree SparrowWhite-crown
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UNITED STf-lrESDEPARTMENT OF THE IN
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c. Effects on Benthos: The proposed
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An ecological evalu~)tion as requir
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JAY S. HAMMO~D. GOVERNORDEPARTMENr
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CULTURAL RESOURCESAboriginal Settin
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shorp--probablv to facilitate easie
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Today the Alyeska oil terminal enco
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APPENDIX GFOUNDATIONS AND MATERIALS
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100 psi pressure at depth. The sour
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-1'~~ ·/~-IU-'J\·-----'~r-.-;-,~
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~UMi'.'j~'~Y!lfGIOL~ N ..--Pa.w'rln
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; ;; Ii; Z II;;; II til, ;;; : i;;
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Valdez InterimSouthcentral Railbelt
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LIST OF FIGURES AND TABLESPageFigur
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-----------------------------------
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-~~ ~..rt~i~;Valdez Interim ReportS
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alder, salmonberry, blueberry, and
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Table IIPrince William Sound Salmon
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3/ 4/ 5/- - -1976 Average weights b
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the number of pink salmon counted i
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in the fall at the upper end of the
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Table 1 VAllison Creek -Discharge M
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outlet from the lake; however, the
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As stated previously, two alternati
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Discharge measurements are sparse a
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Streambed sedimentation can be caus
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8. That during the construction pha
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LITERATURE CITEDBailey, Jack E., an
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Sharp-shinned hawk - Accipiter stri
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Allison ereekTemperature DataDateTe
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ALLISON CREEKSeptember 1979 . Octob
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ALLISON CREEKDecember 1979 Januarl
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SOLOMON. CREEKSeEtember 1979 Octobe
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7. That clearing for the penstock c
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22. That a cooperative study of the
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APPENDIX IMARKETABILITY REPORT
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Department Of EnergyAlaska Power Ad
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Valdez/Glennallen Power Market Anal
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List of·Tab1esTableIII-1IV-1IV-2V-
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Valdez/Glennallen Power Market Anal
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CHAPTER IISUMMARYValdez and Glennal
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A. Assuming Allison Creek follows S
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CHAPTER IIIPOWER MARKET DESCRIPTION
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increases. Municipal construction h
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CHAPTER IVEXISTING POWER SYSTEMSSys
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TABLE IV-1HISTORICAL LOADS--VALDEZ
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Load FactorsThe following chart lis
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CHAPTER VFUTURE POWER AND ENERGY AS
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Table V-IVALDEZ/GLENNALLEN AREA UTI
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Table V-2INSTALLED CAPACITY REQUIRE
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CHAPTER VI .ALTERNATIVE GENERATION
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Biomass-FiredAlthough of many forms
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A Solomon Gulch article in the Dece
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Net EnergyThis section discusses th
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Table VII-2Valdez/Glennallen Foreca
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40VALDEZ/GLENNALLENCAPACITY/RESOURC
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150Figure VII-3140VALDEZ/GLENNALLEN
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150·Figure VII-5140VALDEZ/GLENNALL
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TABLE VIII-IASummary Cost EstimateO
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TABLE VIII-2Summary Cost EstimatePr
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Table VIII-3AAverage Rate Determina
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Table VIII-4CVEA Diesel Generation
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Table VIII-5Average Rate Comparison
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Table VIII-6Average Rate Determinat
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Table VIII-8Average Rate Determinat
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Table VIII-IOAverage Rate Determina
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----~------T'lble VIII-J 1Average R
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CHAPTER IXBIBLIOGRAPHY1. Power Cost
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: I,B'III Ii ::1: iii,APPENDIX JPUB
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Recipents of Valdez Draft Interim f
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u. s. ENVIRONMENTAL PROTECTION AGEN
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25. ~e str?ngly recOTmend that an a
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UNITED STATES DEPARTMENT OF CO!'!ME
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3. have adequate flows for flushing
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Cnitc:d Srat6 [)c'~,artmcnt of the:
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AdvisoryCouncil OnHistoricPreservat
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Corps Of Engineers - 2 -11/4/80Than
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-2-'2. Most of the State 1 and enco
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-~-The SCH has no objection to this
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ALASKA POWER AUTHORITY333 WEST 4th
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Electrical Power for Valdez and the Copper River Basin-1981

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