.: ." .,

\,

Mr. Eric YouldAlasu Power AuthorS'34 West 5th AvenueAnchor.qe, Ala.ka t

Subject: ""pUcattofor the ~

Dear Mr. Yould:

.Ill! Y"'.", j:>WnMre "2 /'(,/:)

/?ftv,av~r 'Y!'l.r".Jd 'll61 /""'I'"C.5<16",,1/.,,; tt Fc"A'c /l1 rt{ftb"'7' .Jt'/'1J3

I" .J-he J£u,..I/OJ< f/';1clJruul'd fi.I;Po;TI'£. ?wd, (b,(J, It'll"" ",,,.i. CtI7Jl7'thflJ ,J<;

£r,c /lalli, Ill",)" Pt«'<Lr /J<.dlw,!;oIl, 'c.JW'ft!. ,ilk, # 1tJ' ,

'-000

Your application for the auhjen project haa been revleved by the ataft. Theapplication ia not in cCllllplete confonMnce with the relevant requJruenta of theComrIlisaionla requlationa. A liat of thoae non-con.fondl'lq it..a ia encloaed aaSchedule A.

FUrther, in order for atatf to be able to fully ..aluate your ap~ication,

pleaa. aubadt the aupp).-.ntal infonaat.1on describe in Schedule)l. 'the suppl ..­.ental information need not be included in the copies of the ap~ication but ..y b.aubad.tted ae~rately.

section 4.31(d) of the requlat10na provides that an applicant whoae applica­tion for a licen.. faila to eonform to the require_nta of the Commiaaion l • requla­tiona .ay b. given up to 90 daya in vhicb to correct thoae it..a.

il; J'~k:cor4inqly, you have 90 days from the date of thia lett;;' ~ corr.ct the non­

confor.aing 1telu 11'1 your application. If you fail to correct your application vi thinthat tillie, it wlil be rejeete. M4it1oaally, ple... fil. the aupplemaDtal informa­tion vitMn 90 daya. If you cannot provide the supplemental infonaation vithin 90days, pl.... provide a Qchedule, for CoaaIisa1on approval, vithil'l 30 d.~ for filiDq"hat i"fonaation. '

It you have any question. concerninq this letter or the fl1inq of your app1i­catien, plea.e contact William Wakefield at (202) 376-1911.

~=K~~Lavrence :R. Andar80DDirec~or, Office of Electric

Pover ReC}u1ation

UN!VEASITY OF ALASKAAACnc ENVIROt~t.1E'JTAl INFORMATIO

AND DAtA GENTER707 A SU:EET

M*'11OR"GE. AIC 99501

.< •. ~ .,

\.

FEDERAL ENERGY REGULATORY COMMISSiON

WASHINGTON 2Q.t26

'N .. It,.~'f Ju: .. rlll "'0'Of3)il-DHLProject No. 7114-000

Kr. Eric YouldAlaska Power Authority34 weat 5th AvenueAnchor"qe. Alaska 99501

Subj"et: Application forfor the SUs!tn.

c.ar Mr. Yould;

( fir!....-"0

licen•• aubllL1tted on February 28,Hydroelectric Project No. 7114.

"83

your application for the subject project ha. bee='! revieved by the ataff. Theapplication 1. not in caapI_t. confor1Mnce with the rdevant require.nt. of theco-i••ion". regulation.. A list of tho•• non-confonaD9 it... 1. enclosed .II.Schedule A.

Further, in order for ataff to ~ able to tully l!Valuate your application,pl•••• auhaJ.t the auppl_ntal intonation describe! in Schedule B. '1'h.e supple­.ental information need not. tHI included in the copi•• of the application but ..y beaubmttc separately.

section 4.31(d) of the requ1atio!lll pr09ide. that an applicant who•• applica­tion. tor a lieen.. tail. to eonforw. to the r.;uire.-nts of the c:c:a..1••ion'. requJ.a­tion.8 ..y be givan up to 90 days in which to correct tho•• it....

AI)..)., .....Al:cordinqly, you have 90 dar- trOll the date ot this lett;;' t correct the non­

contorm.1ng its. in your applieAtion. If you fail to correct your application withinthat tillie, it ..,ill be rejected. Mditiou.lly, ph..e tile the supplementAl info:nu.­t.ion wit.hin 90 days. If you cannot provide the supplementAl inforw.at.ion within 90day., p1ea&ll provide. achfldule. for Ccmai.lioft appro.al. "it.l\in 30 days for Ul1ngthat information.

If you have any questions concerning this letter or the filing of your appli­cation. please contact. Will1_ Wakefield at (202) 376-1911.

~=C(~JV-Lawrence L Ander.-oDDirector, Office of EleC"'.:.ric

Power Requlat.ioQ

Enclosur..

UNIVERSITY OF ALASKAAAC'TIC eNVIR01~i\JF.NTAl INFORMATION

AND DAfl, CE TEA707 A SriEff

ANOtoR4G£. AI. 99501

'. '.r

Schedul e A

Exhibit B

GENERAL

1. Th. applieant. do•• not provide. aufficient document.tion of the loadfo. ecast .odelinq effort or • sufficient.ly broad .nd comprehensive aen­aitivity analya•• th.t would enable a rea.onabl. e ••luation of the impact.of critical vari.bl •• , e.9. current world crud. oil price••

St..ft'. preliminary analy•• s of docu••nte ••d. a•• il.bl ••• part of the application for licen•• indicate rec.nt.chanqes in world crude oil pricinq will have a siqnificanti.p.ct" in reducinq the forecasts included in Exhibit B ofthe applicatioD. S11lJ1'itlcantly reduced vorld crude oilpric. and paver requirement for.caata could change thedevelopm.nt of and the proposed linancinq for the alter­n.ti.e plan. for the reqioD that ar. ahown 1n the applica­tion, and would alt.r the relat.d coat analy••• ua.d ine.aluatinq th••• plan., thereby aff.cting both Exhibit Band D.

2. The applicant do•• bot provide documentation that will alIa'll replicationof the modelinq effort de.cribttd in the .pplication • .ad, ther.fore, infor-"m.tion that can fully aupport the re.son.blen.a. of the 10.d forecaat1II.0deling effort .nd the credibility of ite output.

3. The docum.nt."tion that ia pro.ided does not include d.t. to explain andsupport the forec •• t u.ed in the coat .n.lyai. of alternate plan. andrelated aensitivity analy.e. (i.e., the foreca.t ahovn 1n T.bl. B.73.)

Th. follovin9 item. Ar. keyttd to the nUlIl.berinq ay.tem usad. in the pre­f111nq reviev.

Item 4. Provide generation capability of the Su.itna projectcon.iderlnq the various .inimulll. r.l ••••• prpppled bythe li.h.ry .g.pSi... Provide an .sti•• te of thed.pendable capacity and aver.g& annuel energy pro­duction b •••d upon minimum flo'll r.l ••••• r.comlll.endedby the appropriate at.t. and federal aqea.cie.. Therelea.e .chedules pro.ided 1n Exhibit ., are e.ti.ate.and do not reflect .tata and federal neqotl.tiona.Evidenca at a98ncy consultation should b. provided.~

Itea 51 Include an ••• e ••••nt of the 1mpact the Su.i~n. proj.ctwould have on .yat•• reliability, .t le.at in t.raa ofgen.ration reserve .arq1h. And appropri.te reli.bilitycriteria.

,',' .

•,

"

" .,., ,

- 2

Specifically. provide all atud1e., report., analyees and aurveya whichvete relied upon establish the reliability criterion aelected tor the evalua­tion of the Susitfte project. 1. there any inlor•• tion which establishes thelevel of reliability of electric aerY!c. which cuatomera in the state ofAlaska are willing to pay for? If ao, pIe ••• provide copl •• of .11 auch infor­•• tion. Since suaitna 1. projected to supply an unuaually large portion oftotal ayatelll poyer, include an •••••••ent of the reliability of tr&n.llli •• lonaDd to what extent the Tar1ou. raUbeit utilitllu will be required to ••1ntalnatandby thermal capacity .... precaution a9&lnst trans.i •• ion or other poveroutag•• ?

Ite. 6: Include a .en.itivity analysi. on the impactthat the crucial variable, vorld oil price.,ha. on the Need for Paver.

Specifically, forprice. (frolll January

-1\, 0\,• ubmit

+\1

theand +2\

foIl ov1 nCJreal grovthprojection •

in vorld oilby ye.ra.

1. State oil revenues (royalty and severance taxes).2. State ga. revenue ••]. State general fund expenditure.4. State population.S. State e.ploy.ent.6. RaUbelt population.7. Railbelt elllploy.ent.8. Railbelt-No. of housebold. - by type hou.ehold.9. RaUbelt-electricity de.and per hou.ehold - by type.

10. Railbelt-electricity de.and, by are., (Fairbank.,Anchorage, etc.), .ector (re.identi.l, co••ercial,and indu.trial), and as. (lightin9, power .pace bent).

11. RaUbelt-peak deaand.12. Railbelt-qeneratinq capacity required.

In additioft, li.~ projectiofte of any other .,.arlablee, not li.t.d above,that vere u ••d in predicting de.and or cap.city require••nte.

Provide a complete explanation of the derivation of alternative fuelprice projection. for the ti.e period 1982-2040. Li.it the re.pon.e toprice projectiona of coal, natural 9a. and re.idual and di.tillate fuel oil.If the world oil price vere to decline at a rate of 1\ per annu., hov wouldthis alter the a •• ulllption. about tbe price. for natural 9a., coal and re.i­dual and diatillate fuel oil in Ala.ta over that •••• ti.e period?

FiDally, include analy.i. of th.crude 011 price reflectinq the aoatvorld oil price ••

J..pact on the de..Ddcurrent intor.ation

torecaata.ailable

of a ba.eregard1ng

Ite. 71 Combine or relate the .en.itivity analy.i. on Needfor Paver reque.ted. abo". to one pertor.ed in theco~t benefit analy.i ••

Specifically, for the HB, M, and LL projection. u.ed In theanalysis sub.it the da.ta req~e.ted in projection. 1-12 li.tedabove, for tha -with Su.itna- and -theraal .lternative- plan••

co.t benefitin It•• (6).

. '.. • I

.. - 3 ..

Itea 8. Provide calibration data, cOlliparinq co.puter outputsto actual hi_torte.} performance., on the econometricllIodel. ueed in the Need for Pover analy.la.

Specifically, (1) present 1961-1982 data tor projections 1-12 li.tedin It •• (6), above.

(2) Provide equation.the extent such equation.ba.ic d ••and llIodel.

or ·coefficientsor- coefficient a

relatinq projection. 1-12,vere u ••d in calibrating

tothe

(3) ror projection (10), pr•• ent data by ar•• {rairbanks, Anchoraqa,etc.', by aector Cr.aidential, co••ercial, indiu_trial}, and by end u ••(lighting, pover, and apace-h••tlnq).

(4) Provide the re.ult. of any aodel run•••de .tarting at &ome priorpoint in tt •• which cOlllpared predicted ..alue. vit.h act.ual data. It nohistorical comparisoft run. were .ade to check a04.1 c.libr.t.ion, so st..te.ror in.t.ance, t.he I5ER Regional Allocat.ion Model, a. docuaent.d in ~lectric

pov.r Con.umption ror t.he ••ilbelts A Project.ion of Requireaent.s Technic.lAppendice. (M.y 1980) p.ges 11-18 to 11-19, pre.ent. regr••• ion .quation.e.tiaated 'lith data ending in 1976---how veIl have tho.e equation. predictedactual v.lue. for t.h. dependent vari.ble. in tbe ye.r. sub••que:'l.t. t.o 1976?Alt.rDati.,..l~'. if actu.l valu•• vhicb ba.,.. b.coa. a.,..ilabl. subsequ.nt tothe original e.tiaation of the aodel ba.,.e be.n u.ed. to r.est.i.at. the co­efficient. in the•• equ.tion., bow do those n." esti•• t •• comp.re vitb theold v.luea? Provide all infor•• t.iOD .vail.bl. t.o e.t.bli.h the st.abilityof the co.fficient .sti•• t •• , or nec ••••ry to det.rmin. nev coefficients.

It.m 9: Provide a co.pr.henai ..e and integr.ted expl.n.-tion of hoy the .ev.ral .od.ling efforts verecombined to d ••elop the final for.c.stinlJ .04.1,includinq hov the aodels work, hov exoq.nousv.riabl •• vere sel.ct.d, hov s.nsiti •• the d •••ndforec •• ts .r. to .asulllptiona .nd •• riabl.s and bovthe various aod.l. are linked, e.q., the Institut.for Soci.l .nd Econo.ic R••••rch fISER) aodel link.gato H.n in the Arctic Proqr •• (HAP) wbich is u ••d togener.te input •••ucption••

Th. draft applic.tion va. modifi.d to a consid.r.bl. degr.e with r.gardto t.his deficiency and addition.l infora.tioft va. aade av.ilable in aep.ratareport. vhich vere not available at the ti•• of the pr.filinq revi.w. How­.ver, the noted ch.nge. aDd addition.l r.port.. do not provide a .ufficientlycoaptehen.ive compilation of the infor•• tion needed to ••ke • re••onablere..iev of the forec ••t. includ.d in Exbibit II of the fil.d application.

Ev.luation of • load for.ca.t .odelin9 .ffort ahould Invol ......lu.tionof the .truct.ure of the foreca.t1n9 model, inclUding it. Internal conaiatency,ita correapondence 'lith co••on aen•• and 900d practic. and the ..... 'lith whichmodelinq assumption. c.n ~e i.plimented and un~er.tood. It ahould .lao in­volve identification .nd .valu.tion of the required exogenoua •• riabl.

•

- .. _.

forecast., the par ••eter value. ueed. In the .04el1n9 effort and the responseof the aodel to variation. In exogenous and endog.noua variables.

A large nuaber of choic•• of par ••eter value. and exogenous variableforee •• ta are nece••• ry for each foreca5t. but .11 the par••etera appearlnqIn the aodeliDq of the Suaitn. farec •• tlnq effort cannot b. identified fro.the applicatloD and etaft cannot be aure all the nec.Geary eleogenoua fore­c ••". are ••• 11. .ent-Ioned Ib the application. In ad4ition. little document.A­tion ia .".ilable reqardin9 the ISER/MAP aode1. Aceordlngly, with req.rd tothe Exhibit I, item 9 deficiency pl •••e:

sellctfle.llr. (1) CI ••rly identify ~ aodels and aubaodelaused. in preparinq the econoaic projection end .en.it1vityanaly.es filed, from the point of initial a ••umptionsthrough the demand projectiona to the fin.l econoaicprojection.. Claarly identify bow tha raodel. relate .ndidentify all bre.k peint. in the .yste. vhere d.t. froaone .odel, or .et. of aodel •• ag.t be loaded into .nothermodel. At. e.ch bre.kpoint.. including the initi.l p01nt..identify all input v.ri.bl •• by n••e int.o t.he down.trea.aodel .nd~••ource of d.ta C1 ••• out.put. froa an upst.ra••aodel, or esogenou. yari.bles aft4 a.surapt.ions). Includeonly those IIOd.l. us.d to gener.te the input d.t. u. ed inthe filad econo.ic project.iona and sen.itivity .n.ly ••••or t.hat. genarat..d input. into any sub.cquent. model whichgafter.tad input. d.t.a u ••d in t.he filed economic project.ion~

.nd a.nait.ivity .n.ly.... For .ach aodel or subacu".lclearly identify all output vari.ble. aDd their ti.e aaria.fora Ci.a. by ye.r., t.ota1 onl~. etc.). Our purpo•• herei. to claarly under.t.nd t.he dat.ail. of infor.ation flowfroa t.ha ... riou. point. of infor.ation input to the fin.lout.put. If various .04el. aupply input. to one foreca.t(i.e. high ••diu., low. ete.) but. not another, cle.r1yident.ify t.he forec••t. in whicb • aod.l output. i. u.e4.

(2) Par each model identifiad in (1) abo.....upp1y the.ersion of t.he aodel u.ed to pro..ide input. to the filedeeonoaic projectIon. and aena1t.i.1ty .nelye•• in .ufficientd.t.il t.hat it c.n b. prograa.ed. Supply the value. foreach para.at.r or coeffici.nt used within t.h ••odel ••St.ate whether any par••• ter or coefficient vMlue. ar.changed in .It.arnat.i•• aodal rDD.. If p.r.met.r orc'effici.nt. value. ch.nga, el ••rly identify th. para••ter oreo.fficient ..alue. u.ed in diff.rent. c ••••• nd .tate t.h.reaaoning u ••d to ju.tify such change.. supply .11 data •• tudle •• and ot.her .ataria1 rlliled upon t.o .upportthe choic.of para•• ter .. alu•• or reqr••• ion eoefficient. u.ed.

(3) Por t.he 10"'", BlDder.t. (b••• ea.e) .nd high projeet.ion.(includlng the -wl~h Su.tina- and -wlthou~ Sualt.na­variation.) u.ed in t.he application for the .conomicanaly ••• list the value. of all exogenoua variabl •• ,

. . '.. .5 -

d.t., .nd .s.uaptions used •• input into each aodel (byyear, if input i. by y.ar). clearly identify the outputv.lue. (by ye.r) from .ny aodel th.t are used •• input intoany .ub.equ.nt model throu9h the final economic projections.Clearly .hov the output value. by year from the overall demandaod.l th.t i. uaed a. the ba.i. for economic projection••Por e.=h aodel .1.0 .hov the individu.l dat. or projectedtiae .eria. that aach aodel generata. internally andus•• to genarate the final m04al output. Th. inform.tionpr ••entad .hould b••uffici.ntly detailed to alloy u. totr.c. the projection froa initial data .nd •••u.ption. u ••d•• input through .11 aod.l. to the final d ••• nd projectionu.ed in the filing:-by ar•• , e.ctor, .nd end-u•••

(4) Identify, or .upply, all d.t., .tudi •• , orothar aat.rial rali.d upon to .upport the choice ofvalue. for each exog.nou. variable and a ••umptionu.ad a. input in~o the varioue aodais. Wh.r. inputvalu•••re primarily judg••ental, ao atat••

(5) Econoaic and co.t banafit data are computadthrough tha yaar 2051. Tha varioa. deaand a04.l.and sub-model.·ver••pp.r.ntly t.rain.t.d at .0••••rli.r dat.. Cl ••rly id.ntify 811 assumption. u••din extr.pol.ti ng demand .nd .y.telll coat. b.yond the.nd period from mod.l proj.ctions.

Itelll 10: It .pp.ar. that the MAP 1II0d.l produc.s populationforecaate only to 2000 ther.by requiring extra­polation to 2010. Modify tha 1II0d.l to produc.forcaete up to 2010.

Specific.lly, Yher. 1II0del. which are u.ad to gener.te input into othernodele th.t do not gener.te data for the •••• ti•• period .s the final demandmodel, apecify th~ axtrapol.tion method. and •• lu•• u.ad. Provide sufficientex.mple. to clearly da.onstrate tbe procedure. Provide.t lea.t one plot ofgenerated data and extrapolated d.t. a ••n illustr.tive ex ••ple. Identify.11 points: where the eiae .erie. dJffer betyeen aodel••nd extrapolation, orinterpol.tion, is nece••ary.

Item 20: Specific detail. need to be included .bout:tA) the data and fozeeaating •••u.ptlon.,(B) the ·price Adjuatlng int_naity· (p. 5-6),tC) con.arvation ~dju.ta.nt•••• tG) revi.ion.of Battelle (oree.at. in 1982.

Item 25: The 2-4' reduction in he.ting consu.ption dueto con••rvation aeea. to be verI' loy. Providathe an.lyei. justifying this raduction inheating energy uae~

,'. ' .. .- .-

Item 27: There i. a.biquity concerning the forecast usedto incorporate load reduction aeasure5, It i.unclear why the ISER de•• nd foreca.t. were cho5eAover the RED foreca.t. after modification. were.ade in the RED model to handle this. Explainthis apparent inconsi.tency.

Specifically. provide all .tudies, r.port. and analy••• that w.r. reliedupon in formulating the •••••••ent of the imp.ct of r.ons.rvation (b0tti pr!c.and non-price induced con •• rvation) in the projections of en.rgy con~'_",p",4__...yOU ha••••d.. Explain which of the•• material. v.re judged to be rel.vantto the calculation. of cons.r.ation i.p~cts and vhich v.re judg.d to b. of nodir.ct con••qu.nc. to the calculation.. Reconcile and .xplain hov the con­.ervation i.pacta wer. quantified ba••d upon the .aterial of rel.vanc. intho.e studi ••• reports and analy ••• that vera reli.d upon.

Cle.rly identity hov price ••naitiYity. load r.duction •••• ur.. andcon.erv.tion iapact••ffect the actoal d ••and projection. (Table 8.73) u ••d•• a ba.i. for economic co.pariaons. The Onit.d Stat•• and the World as avhole have axperiene.d a .ignificant reduction in total .n.r'IJy d.mand andd ••and p.r capita in the p.at fev y••r. a. a r •• ult of the rec.nt energypric. incr...... pl •••••xplain to vh.t .xt.nt. if any. Ala.ka .ay diff.rfro. this .... ry p:!'onounc.d pattern. Al.o. identify aDd 4i.cu•• the po•• ibl •• ffect. of the revi.ion••ade in the Battelle foreca.t. in 1982, i ••••ft.rcoapletion of the f ••• ibility .tudy generation planning_

Exhibit 0

'Exhibit E

INTEREST DORING CONSTRUCTION

Provide lin. it •••• preferable in Table D.1 or Tahl ••D.2 and D.), for ATUDC and ••calation. Thi. i.Dec•••• ry to deter.ine tb••ctu.l co.t of the projectvhen it i. brought on line and to determine the totalalllount of fin.ncing r.quired for cunatructioc.

WATER OSE AND gUALITTsFISH, WILDLIFE AND BOTANTICAL RESOURCES

p. E-24.p. E-2-1'.p. E-3-83

Provide incre•• ntal flow analy ••• , beginning .t1000 ct•• nd iner.a.ing in 2000 cf. incr •••nt.up to 31,000 ct., •• veIl •• additional .nalysi..t 12,000 ct., de.on.trp~iDg the r.l.tioc.hipb.tween •• in ch.nD.l flowa at Gold Cr.ek an4change. ~~hy.ical habit.t .ariabl •• 1n ••lect.dal 01» 1~ in the ·D.vil Canyon to Talk •• tna r ••chand b n ~e Talk•• tna to Cook Inlet r.acb.Th. ariahi .hould includ. wetted .urfac. ar•••of douqha, vetted peri •• ter ot .louqha, v.t.rdepth and .urface .l .... ation. at top and bottom.nd of dough., w.ter table .le.ation. in the... icin1ty of ·.loug~s. di.charg. from b~tto2 endof .lough •• and vater ••locity distribution.vi thin &lough ••

, "

- 7 -

Exhibit F

1. Stability and Stress Analyses

Provide sum.aries of stability and stress analyse. for the fclloY­1n9 structures) Watana D•• , De,,!1 canyon Arch Dalll and thrust block abutelllenta,Devil Canyon Saddle d •• , Watana and Oew\l Canyon .ain spillvay 9at,e structure,and the Watana and Devil Canyon .mergency spillvay fua. plU9S.

2. spillway Desian Flood (SDT)

Provide the b •• ia for the determination of the sor and t}). Prob.:,}eMaxiau. Flood (PHF), for botb the De,,11 Canyon and Watana d .....lop••nt., insufficient detail to per.it an independent staff evaluation. If this infor­.ation 1••".ilable in a .eparate reterence, it should be included (byreference) in the Supportin, Dea19D Report and .. au••ary provided "hicb t •• iailar to th~t .hown for the •• i •• ie load. In Section 3.2(h).

... "

Schedul e B

SUPPLEMENTAL INFORMATION

CONTENTS

Exhibit E

. .

,.2.3.

••s.••,.••••

, D.

".

General a.scription of the Locale •••••••••Water Ua. and Quality •••••••••••••••••••Fiah, Wildlif., and Botanical Resource.

Aquatic Resourc.. •••••••••••••• • •••••••• 0 ••••••••

Terr•• trial aotahieat Reaources ..Terr•• trial Wildlif. Resourc 0 ..

aistoric and Arch••olo91ca]. R••ource. .. ..Socioeconomica .. ..Geoloql .1 and 5011 Resourc.. .. ..Recreational R••ourc••••••••••••••••••••••••••••••••••••••••A•• thetic Resourc•••••••••••••••••••••••••••••••••••••••••••La ftc! U.. • ••••••••••••••••••••••••Alternative Location., De.i9ft., and

Ener9Y Sourc.a ••••••••••••••••••Li at of Literature •••••••••••••••

,2

••12..152022242 •

2'3D

Transmission F~cll1ti••

, 2.13.

Statu. of Faciliti ••••••••••••••~l.ctric.l Environ.ent.l Effects

3233

Enqineerinq

. ....15.,.. Gener.l

Exhlhi t FExhihl t G

and Supportinq De.i9n Report

Need for Power

" .18.19.2 D.

Exhihit II •••••••• •••• ••••• •••• • ••••••••••••••Exhihit D •••••••••••••••••••••••••••••••• • ••••••••••••••Addi tion.l Supple.ental Report.. ReqUired •••••••••••••••rin.ncial Plan .

"

3.3.4141

.__._~>~------................=---

. :. ... ...- 1 -

EXHIBIT E

1. GENERAL DESCRIPTION OF THE LOCALE

No additional information or clarification i5 required for this section.

'-'- -. _._._- --_.._._------_.__.•..__ ._--. : : .,

1. p. E-2-5

2. p. E-2-5.FIgs. -E.2.l2 ­E.2.20

3. p. E-2-17. '1

4. p. E-2-17. , 5

5. p. E-2-20, , 1

6. p. .-2-28, , 4 .

7. p. E-2-28, , 4

~ p. E-2-28. E-2-181

- 2 -

2. WATER USE AHO QUALITY

ProvIde copIes of the orIgInal photographs, wIthdates, and In IstiMate of aafn5te. flow It GoldCreek when the aerial photogriphs in Figs. E.2.11tD E.2.20 were taken. Provide similar sets ofphotDgraphs at high, .edi.., and low flows tDdocument channel stability, wetted surfac. areas,etc., in future Aquatic Sludies.

Provide complete ref.rences to .11 cross-sectiondata and staff gage data for locations indicatedin thlse figures.

Provide stage-discharge dlagrlOs for all gaugIngstations on both ••instea and tributaries.

Provide data used to prepare Figure E.2.66 and adetailed discussion (inclUdIng input data) of thisuse of HEC-2.

Provide data on particle size distribution forsuspended sediments collected oyer the a""uI1range of discharges for the Susftna River.

Provide data on the contribution 01 organic matterto suspended s.dillM!nt concentrations at Illchsampling stat10n in the Sus1tn. River on I seasonalbasis.

The discussion presented here suggests the existenciof data (10 .g/L, 2620 .glL, 5690 .gIL) beyondthat given In Tabl. E.2.20. ProvIde the.. data.

Provide the quantitativI criteria that were usedto determine that the proposed minimua flows Wlrtadequlte to allow access to slough spawning grounds.

- Provld. the habitat suItabilIty criteria used toevaluate flows for adequacy of upstrea. migration,spawning, rllring, overwintering, and out-migration.

9. p. E-2-29 Provide data on suspended sediment concentrationsin sloughs on I seasonal basil• .' .,

10 . p. E-2-29, , 4 Clarify referenci provided on Figur8 E.2.79 Ind-' explain procedure used to create this figure.

11. p. E-2-32. , 2 Provide data on biologIcally available and tot.1soluble phosphorus concentrations in the Susitn.River water for each water quality sampling station.

-..-. ~"';'-.,,- -- =-- --.- -., '.. . - ..... -.. ~- _.... -_ ..

- 3 -

..~ ... - -:--='-

12. p. E-2-32, 1 S

13. p. E-2-40. 1 3

14. p. E-2-40. 1 5

15. p. E-2-41

16. p. E-2-42. 1 4

17. p. E-2-46. 1 2

18. p. E-2-S7.Fig. E.2.23

19. p. E-2-SB.Table E-2-34

20. p. E-2-66. 1 2

21. p. E-2-67, 1 3

22. p. E-2-67. , 3.p. E-2-H3

Provide references for I or data on, amoni UJaconcentrations (means and ranges) in water atmonitoring stations on the Susitna River.

Provide water levels as a function of observationt1me for each well. Provide data associated withcore drillings and piezometer installations.Provide bathYM.try for sampl.d sloughs.

Provide correlations between observed sloughgroundwater parameters and 1OCa1 lIai nstem waterelevations and fl~s.

Describe or reference the technique that has beend.veloped for .easuring upwel11ng in sloughs.Provide the date and ..instoo flow at the ti...groundwater tlow was estiDated.

Provide the following inforoation for tributari.sat their conflu.nca with the Susitna River:bathymetry, aorpnology, and stage discharge relation­ships.

Provide the basis for extrapol.ting HEC-2 watersurface profiles outside the ran~e at calibra~ion

flows (9700 to 52.000 'cts .t Gold Cr.ek) listedin the R&M 'Hydrau11c and IC1! Studios" report.Provide reflrences to any addition.l c.libr.tiondata s.ts for the HEC-2 IOdel. Provide .ethodologyand supporting data used to derive the estimat.dHEC-2 accur.cy of %l foot.

Provide a comp:lete de.scription of the curve­fitting technique used to generate this frequencyan.lysis.

Provide I table of proposed minimWII flows whichresolves the apparent contradic~ion bet~een thistable (Tabl. E-2-34) and Exhibit 8 (Table 8.54).especially for the 1Il0nths of la.es~ po~'t-project

flows (Octob.r-H.y).

Provide dat.a and observations on changes in theSus1tna River morphology during freeze over andice breakup.

Provide estimates of the magnitUde of increas8 insuspended sediments in Watan_, Devil Canyon. andthe Sus1tna River associated· with vegetationr~oval in the impoundment zones.

Provide quantitative estimates of increases insuspended sediment concentrations in winter and insummer and the downstream extent of such increasesduring construction of Vatana and Devil Canyon Dams.

'. ., '-"---"---' ._---_:. _._ ..-._--- -_._-_._- --_._----- ..

- 4 -

23. p. E-2-67, 1 4

24. p. E-2-69, 1 3

25. p. E-2-70. 1 1

26. p. E-2-7S. 1 4

27. p. E-2-77. 11

(t) p. E-2-a7, 1 1

29. p. E-Z-e9. 1 3

30. p. E-2-90. 1 3

31. p. E-2-91, 1 2,. p. E-2-170

Provide envi~nmental criteria used for selectionand eli.ination of borrow s1tes.

Provide data on the quantity and particle sbedistribution of materials lost through entrainmentand erosion frc. borrow sites at other constructionsites In AloskA (e. g., Lake Eklutna Hydro Project).

Provide description of ...thods for preventingentrai~nt of backfill materials in river waterand erosion of such .at.rials into the river.

Provide coefficient Yf,lulS used in regressionanalysis and how they were detenolnad.

Provide details of regression analysis used forDeldman Creek Including derlvltlon of coefficientsInd Input dlte.

Provide longltudlnll profiles of predicted weeklyIVlrage temperatures downstream of Watana Dam andDevil CanyonlWltlnl using the DYRSEH Ind HEATSIMDOdels. Simulations for stetlons with pre-projecttemperature data should be provided with Watana inoperation and Devil CanyonNatana in operationus1 ng data for In averagl wltlr year Ind forcondl~lons of IlnioUl r.lelses (I •••• using dltefor I .ini•• flow Yllr) frOll \latana Ind frollD.v;l Canyon. Listings of Inputs used and assump­tions .de in each sillulation stlould also beprovided. Outflow temperatures f~ each reservoirused In the HEATSIM nodel should Include thetelllperatures that would hav. to be lIVailabl. atthe .ultllevel Intlkes In order to .etch pre-d..temperatures. Meteorological conditions used asDOde' parameters should be provided. These simulatedaverage weekly temperatures should be compared topre-project temperatures measured during low-flowand averagl flow yeaTS. Provide parameter value~

used in each simulation Ind document the sourcl ofthe values used.

,- c.'

P'rovide river ltage and flowl at which overtoppingand scouring of sloughs was observ.d.

Providl estimates of the Illignitudl of fncreasl insuspended sediment concentrations Ind in tUrbidityIn winter in the Susltnl River compared to pre-project levels. . ..'"~.~~'.". -,

Provide q"uantitltive estilllates of increases insuspended sedillents resulting fro. skin s11des,biomedal flow type s1ides. and shallow rotational~lid.s in the Wltlna and Devil Canyon impoundment

_.. -. - _..~~--

·_._... . ,"

..,' . ,.. ...:..:. "- ...... -..:.__ ..._-- _._--

- 5 -

_-:-:-..:;.-.-.,';' -._...• ......_,

32. p. £-2-92, 1 1

33. p. £-2-96, 1 2

34. p. £-2-97

35. p. '£-2-100, 1 4

/8p. E-2-112, 1 2

37. p. E-2-112, 1 6

zones. Document locations where each type atslide is likely to occur in each of the impoundmentzonls.

Provfde onolysfs of the effects of fflling ando~~r3tion of Vatlna on suspended sediment concen­trations and suspended particl. sizes passingdwnstreUl through Watana Reservo; r.

Provide quantitativI estimates of nutrient adsorp­tion on suspended sedimentt (e.go. glacial flour)that will be transported into Vltana Reservoirs.Provide data on levels of exchangeable phosphorusin sofls in the Vltana and Olvil Canyon impoun~tzones.

Prav; de data on the SlalOM1 f1 uctuatfons ofgroundwater levels for various Ther stages torthe aquifers adjacent to the "river and upgradienttroll the river uinst.. Provide dau on theslasonll variations in groundwater discharge tothe sloughs. Provide data on the ar••l extent andseasonll vorilbilfty of upwlllfng fn thl sloughsfor vlrious river flows. Provide diU on thearell extent of the allu\·i.l Iquifer in the reservoirarea. _ thl sa..onal fluctuatfon of the depth ofthe peraafrost. .

Providl real ond sfmulatld salfnity dot. , fellshow the accuracy of the Corp of Engineers salinitymodll for predicting salinity fn Cook Inllt otdifferent locations (I.g., Hod127) under differentflow conditions. Also l provide parameter valuesused in these simulations and document the sourceof the values used.

Estf...te the problbilfty and magnitudl of supe,..saturated vater passing through Watana and DevilCanyon reservoirs. Include specific estimates for~at.r entering Watan. reservoir, the likelihood ofsupersaturated conditions persisting through thereservoirs to the intlke structures, any differencesbetween saturation values of water entlring outletfacilities and the turbine intakes, potential forair entrainment It both outlet facilities Ind theturbine intakes, and I description of the processesaffecting supersaturation at the turbine outletfocilitfes.

Provide dati on the seasonal variability of bedloadtransport in the Susitna River at IVlilable crosssections.

. .I· '.•

- .....' .

--._-- --------_..__ . , ..- -"--," -. --- ' -----

- 6 -

38.

42.

43.

p. E-2-U7, 1 2

p. E-2-U8, , 1,Fig. E.2.170,Fig. E.2.171

p. E-2-121, , 5,Fig. E.2.179

p. E-2-124, , 2

p. E-2-125

p. E-2-128, , 2

Describe the uncertainties associated with datacollected during this period.

Provide ~sti.ate of the error/uncertainty for laleEklutna DYRSEM simulations by .onth and season.Also provide data on model parameters used in thesimulations In Fig•. E.2.170 and E.2.171. Explainwhy the DRYSEM simulation run was restarted onAugust 19 (FIg. E.2.170).

Provide parameter value. u.ed In the DYRSEYvHEATSIMsimulation of river temperatures in Fig. E.2.179and document the so~rce of parameter values used.

Provide documentation for ICESIH model. ProvidevaHdatlon of ICESIH model by comparing modelpredictions with ice observations on the SusftnaRiver.

Provide sensitivity analysis to estimate cumulativeuncertainty in fee cover predictions by consideringuncer..... inties in the sequence of aodels used.

Provide comparisons of trap efficiencies forWatana based on the Brune curve vith those estimatedusing other methods.

)(

44. p. E-2-132, , 2

45. p. E-2-133, , 3

46. p. E-2-135, , 4

47. p. E-2-155, 1 4

48 p. E-2-187, '-2

Provide list of all discharges where cone val~es

will be used and I list of discharges where conevalves will not be used for Watana and for DevilCanyon.

Provide data for neh fraction of nitrogen andphosphorus used in the calculation of the N:Pratio in Susitna River water.

Provide data on water quality, including nutrients,dissolved oxygen. and trace metal concentrationsin Alaskan reservoirs of similar depths and insilRilar climatological regimes during and I.tter·fl 11 I ng.

Provide I list of differences and sillilaritiesamong like Eklutna, Watana, Ind Devil CanyDn,inclUding physiographic characteristics (e.g.,depth, lrea, aspect, shoreline development) knownto affect responses of reservoirs to meteorologicalchanges I.nd thermal Characteristics.

Provide bathymetry and substrate datI. for sloughsidentified IS candidates for reml!dial action.

.. - ~ .._.. _ .. -,- ..._.... _-- ...._" .. _,,...... ..

',' .' • t.

_... ....:..-.-..__ .

- 7 -

'... "~ ...:. .._-.".

49. Fig. E.2.63,Fig. E.2.64

50. Fig. E.2.65

51. Table E.2.2,Table E.2.4

Provide clarification ot th! tern "water depth"used in these figures (i.e., ~aximum depth, ~eandepth, or hydraulic radius).

Provide a description of the .odeling proceduresused to generate the water surface elevations inthis figu.... Provide the appropriate reference toTrihey's work (Trihey 1982 is ambiguous) and otherADFG Dr Il&Il reports containing data used in thisanalysis.

Provide tables of oonthly average flow data atGold Cre!l, Chulitna River, Talkeetna River, andSusitna Station for water years 1950 through 1981.Provide corresponding monthly average temperatu~.

data at these four stations for every month duringwater years 1950 through 1981 for which this ispossible.

•'.. ..

- 8 -

3. FISH, WILDLIFE, ANO 80TANICAL RESOURCES

FISH RESOURCES

1. p. E-3-92, , 2,3

2. p. E-3-96, , 3

3. p. E-3-110, , 3;p. E-3-111, , 2;p. E-3-115,' 2

4. p. E-3-112, , 3

S. p. E-3-113, , 3

6. p. E-3-l2D, , 2

7. p. E-3-128, , 1

Provide criteria that require use of cold (4°C),deepwater releases through divers·:.,n tunnels inthe second Sur.BeT of Vatana filling. Prov; d.relsoning why warmer surface water cannot be usedwhen It will, according to Table E-3.25, Plate F-17,and Figure C.I, bl accessible to the outletfacll1tio••

Provide the depth-of-passage criteria used in theanalysis of Slough 9 that led to the conclusion ofunrestricted access It flows oyer 18,000 cfs butacute access problems It flows 1.5S than 12,000 cfs.Provide quantitative biological criteria for suit~

able water depths 1n sloughs for access and spawning.

Provide documentation, quantat;Ye if possible, fromother hydroelectric projects in glac1al areas thatdecreased open-water turbidity and reduced 511tload downstream of Wabna will improve benthi~

production Ind thus fish rearing.

Provide documentation of successful egg incubation.as well as ove,...i nttri ng in areas downstreaDI ofhydropower reservoirs ~here glacial silt loads indturbidity continue into winter months, e.g., belowEkl utoo Lake.

Provide your quantitative estimate and analysis ofchanges in growth rates and outmigration times ofjuvenile salmon in the Susitna D1linstreatl and

\ .ajor side channels that could result from alteredannual temperature and flow regimes such as thosagiven in Figures E-2.174 through E.2.183, E.2.193and E.2.194, or others If justified. 00 forWatana and Devil Canyon scenarios. _. "'.Provide I species list of important resident finfishand shellfish in Upper Cook Inlet. Indicate thomost dominant species and any species of commercialvil Uf. .... .;

Provide references from other projects or fro.experimen~al studies that form the basis for the

'-,' ,-,._-- _.-------.. ".

- 9 -

8. p. E-3-130, f 6,p. E-3-187, f 6

9. p. E-3-164, f 4

10. p. E-3-170, f 5

11. p. E-3-178

12. p. E-3-179, AquaticStudi IS Progru

13. Table E.3.8

14. Table E.3.17

15. Figures E.3.8and E.3.9

statelllent that turbidity and siltation of theSusitna River fro:D gravel mining in the riverbedand tributaries for Watana and Devil Canyon Damswill not result in Adverse impacts to fish.

Provide water quality criteria used to determinesuitability of Oeyil Canyon and Vatana Reservoirsfor fis~ production. especially for the decisionto stock and oanage rainbow trout only in OeyilCanyon reservoir.

Provide references to studies at other sites wherespring flows 'ite" lIanipulated at the ti.. of fcebreakup in orde.r to stiaulate out-.igration ofsalllOn fry.

Proyide operating criteria for dltenoining how theslllct.iYe withdrawal capabilities of the multi-leYelIntakas to the Vatana and Oeyil Canyon powerhouseswill bl controllid to attain pMl-establlshldthl...l objectiYes for fish populations.

Provide the data and analysis procedure und todetaraiM the aaxillUII estinted spawning habitat(approxiaately 245,000 fV) MlqulMld by saloonspawning in sloughs upstreu froll Talkeltna in1981 and 1982.

Provide the current 'itOrk plan for the Aquatic Progrufor 1983 and 1984. .

Provide an evaluation of or reference that describesthe correlation between helicopter surveys versuson-foot surveys as methods for estiaating chinooksalmon escapemlnt (number live and dead).

Provide estimates for each tributary l1sud inthis table of thl total length of tributary presentlyutilized by Arctic grayling.

Provide popuhtion estimates and percenuges of. adult nll1Cn .igrating past the Sunshine Station(SI. FIgs. E.3.a and E.3.9) that Intlr thl Talk.ltnaRiver. the Chuli~na River. or stay in the SusitnaRiver between the Sunshine Station and the TalkeetnaStation.

TERRESTRIAL BOTANICAL RESOURCES

1. p. E-3-195, f 3 Provide an estillate of the amount and k.inds oftimber currently removed from the project areJ forsubsistence USI.

· ,

2. p. E-3-202, , 4

3. p. E-3-206. , 1

4. p. E-3-208. , 4. top. E-3-210. , 1

5. p. E-3-219. , 5. top. E-3-220. , 1

6. p. E-3-221. , 4

7. p. E-3-225. , 2;p. E-3-240. , 2;p. E-3-244. , 3;p. E-3-245. , 3;p. E-3-246. , 5;p. E-3-247. , 2-4;p. £-3-252. , 5;p. £-3-253. , 1;p. E-3-270. , 1;p. £-3-280. , 5

8. p. E-3-226. , 4

- 10 -

Estimate the average elevat10nal limit for treesin the project area (and/or ~stimate the range fort ..... line).

Jndi cate whether the percentage of tata1 artacovered by open sprur.e is 1% as stated in thisparagraph or 7S as shown in Tabl. E.3.51.

Define sedge-shruc tundra and .at and cushion/sedge­grass tundra as used in Tables E.3.51 and E.3.52.

Indicat. (e.g.• as in Tabl. E.3.87) how thevegetation types that were used by COlllllonwealthAssoc. (1982) and pres.nt.d in Tabl. £.3.79 corr.latewith the v.getation typ.s us.d by McK.ndrick .t01. (1982).

Provide clar1f1cat1on of the statements concerningmodifi.d .apping of wet s.dg.-grass and blackspruce forest as wetlands in the Healy-to-Fairban~

and "'illc..-la-Cook. Inlet trli1!tllission corridors.Were all the arelS covered by tt~~se vegetationtypes considered wetlands, or were portions ofeach type selected en the basis of defined criteria?

Check and correct, as necessary, .'1 calculationsof land areas to be impacted or aitigated. Dis·crepancin have been found within tables (e.g.,Tabl. E.3.83 totals for impoundm.nt and for shrub­land over thr. entire Watana facility) and betweenthe text and calculations IIlde from the tables.For example, on p. e·3-225 total direct vegetatiQnremova1 due to Watana constT"uct i on is given as16,582 ha, but this figure should take into accountthe 2128 ha of unvegetatltd arel; on p. £-3-245.the percentage of total wetlands occupied bypalustrine forested areas is not consistent withcalculations .ad. from Tabl. E.3.82. Indleatowhether unvegetated or disturbed areas were includedin the calculations for vegetation removals andwhether unvegetated rocky areas were truted

, differently than river. lake, or ,fce areas., .Provide • 1lI0rl! deta.iled description of fugitivedu~t emissions and impacts. Include calculationsand/or discussions to support conclusions on theimpacts of fugitive dust. Show on an appropriatemap of the project area locations where significantfugitive dust emissions are expected during con­struction. Provide the time periods for construc­tion activity at' uch leeation of expected signi­ficant fugitive e"lissions; provide mitigationmeasures ..

.---_.- ._~':.",..---.._ .. ---'''-' ._---... . ..

•

9.

10.

11. p. E-3-230. , 2.;p. E-3-242. , 2

12. p. E-3-246, , 2

13. p. E-3-256. , 1

14. p. E-3-259, , 3

15. p. E-3-m. , 4

16. p. E-3-272. , 2

17. p. E-3-274, , 4, top. E-3-275, , 1

- 11 - ..Provide esti8ates of pollutant emission levels forthe tUIPorary diesel pO'W'er generation facilitiesand the period of use dudng the constructionperiod. What air quallty illlPacts wi 11 result?Provide numerical values, explain their derivation,and provide a numerical esti.at. of the air qualityilllPact•

Were IAeteorologfcal lIe1surements ede 1n thevicinity of the proposed dam sites? If so, providedata on frequenc. of occurrence of wind speed,stability class, wind direction. and inversiondepths.

Indicau wheth.r tho area affected by tho drawdawnzan. has been included in esUate. of directvegeut10n removal dut to the fllpoundcents and/orin TAbles E.3.83 and E.3.84. If nat, provide.st1.atel at the arHS affected by drawdown torbath Watana and O.v11 canyon.

Provide ••timate. (using tabl.. .imilar toTable E.3.82) of the number of hectare. of differentwetland types that will b. crossed by each of thotransmis.ion corridors (including tho interti.)and .reu that will be cleared for access.

Oescrit>. haw partially or cOlllPleuly IXcavaudborrow ."as tor the access roads wi 11 b. N' ~i1­ltaUd.

lndi cate how the area ot wet sedge-grus tundra 1nthe ~ccess and transmission corridors was calculatedto be 195 h. u.ing Tables E.3.80; E.3.85, andE.3.86. and indicate if tho int.rtie (Table E.3.79)has been included in the calculations.

Indicate whether. and in what situations. winterconstruction of transmission lines will be used ISa .itigation measure (sinci the use of helicopterconstruction is not currently planned).

Indicate ~heth.r the us. of balloon-tire or flat­tread vehicles as required for access to theWatana-to-Gold Creek corridor will also be requiredfor the other transmission corridors.

Explain where the numbers in the examples in thesetwo paragraphs came fromi they do not correspondwith previously stated numbers such as those onp. E-3-253.

18. p. E-3-275, , 3, top. E-3-Z91, , 3

19. p. E-3-279, , I, top. E-3-280, , 4

- 12 - ..Providt I .ore detailed description of possible.nigation options for wetlands where avoidancecannot be used as the .ethod of .itigation. Forexample, describe special construction 'Hthodsthat could be used in wetland areas, Ind provideexamples of the techniques or aethods thlt couldbe used to .ftigate potentf.l altentions towetland drainage patterns.

Provide examples of rec1uat1i:Jn plans and pro­cedures that could be used for varfous types ofareas (e.g., slopes, flat areas) and aajor vegeta-tion types.

TERRESTRIAL \/ILDLIFE RESOURCES

1. p. E-3-311, , 4

2. p. E-3-337. , 3

3. p. E-3-411, , 1

4. p. E-3-450. , 2

5. p. E-3-494 top. E-3-495

6. p. E-3-499, , 2

7. p. E,3-524. , 3

8. p. E-3-536, , 4

9. p. E-3-54O. , 1

10. Table E.3.92 andTables £.3.83,E.3.71

11. rable £.3.143.

Providl a cOlIIplete description of criteria forstratifying census area into low, ~diUD, and highdensity strate.

Providl • schedull of whln results froe ongoingstudias vill bl a••llabl••

Provide In estimate of the numbers of acose usingthe .ineral lick. and the number of other licksused by the local aoose population.

Indic.to thl a.ailabllity of blld eagles nestsitls rel.tlvi to food a••llabllity.

Describe the potentill for llIIpacts of operatingtransmission lines on wildlife use of rights-of-way.

Indicate the criteria for dete~ining - ••• suffi­cient m.gnitude to influencI .itigation p1anning.-

Provide assays for soluble cations and s.lts .1well as for total elemental levell.

Indicate If .ltl9atlon by shifting the road alig­nment .lso includes avoiding the use of borrow~aterial near the nest IS well IS other sensitiveare.. Identiflld In Figures E.3.80 through E.3.82.

Indicate if transmission lines WIre sited so as toreduce or avoid potential for coll1sionl.

Indicate which is thl value to bl used fer theAreAl extent of low-mixed-shrubland. :

Define 'the number in parentheses next to eachspedes Mue.

. "

- --_ .. -_._------_._----_. - - ._._-..

- 13 -

12. Tabl. E.3.165 andTabl.s E.3.n,E. 3. 83, E. 3. 84

13. Tabl. E.3.165

Indicate which values for areal extent at vegetationtypes are to be used.

Define "total % of other projects ll•

,.

...•.,-- --, .

- 14 -

4. HISTORIC AHO ARCHAEOLOGICAL RESOURCES

The following archaeological field verk .ust be completed during the1983 field season. The order of the list indicates the priorities that shouldbe placed on the cOIllp1etion of each tast. .

1. Completion of the reconnaissance survey of the proposed acceSS reads,railroad, Watane and Devil Canyon dam sites, construction camp areas,associated impact areas, and reservoirs, including the resurvey of definedlocales that have potential for containing sites.

2. Completion of aerial reconnaissance survey and on-ground reconnaissancesurvey as necessary to complete sensitivity maps of all proposed trans­.ission corridors and recreation facility sites as eay havi been definedindicating the potential of these areas for containing archaeological andhistorical sites.

3. Completion of reconnaissance survey of &ny additional direct impact areasthat .ay be defined prior to the 1983 field season.

4. Coqpletion of systematic testing of archaeological and historicl.l sites1n the direct impact areas of the access roads and railroad, and thevicinity of the construction camp areas and the proposed sites of theWatana and ~evil Canyon dams and associated facilities.

The following field work should be completed 1n the 1984 field seasonand according to the following priorities.

1. Completion of systematic testing of sites in the reservoirs.

2. Completion of reconnaissance survey along. the proposed transmissioncorridors, recreation facility sites, and indirect and potential impactareas•.

3. Completion of systematic t~sting of sites in these areas as ~ay be necessary.

A preli.inary report on th~ results of the 1983 field season should beffled at the conclusion of field verk no later than September 1, 1983. Adraft. finl.l report on the 1983 field season must be provided by December 1,1983, follo...ed by the final report by January 1, 1984. The final report onthe 1984 season should be filed after completion of all field ...ork, no laterthan January 1, 1985. The 1985 report should contain a site-specific culturalresources management plan. Allwork. and fi na1 reports, i nc1 udi ng a cul turalresources management plan, should be undertaken and prepared in consultationwith the Alaska State Historic Preservation Officer, the National Park Service,and appropriate federal land-managing agencies. Five copies of each report(inclUding five copies of the final reports on the 1980. 1981, and 1982 field..-ork) should be filed with the Commission.

- ------

'.

1. p. E-5-8, , 4,through

p. E-5-26, , 1

2. p. E-5-27, , 1,through

p. E-5-52, , 4

3. p. 6-5-30, , 2;p. E-5-38, , 1;p. E-5-40, , 5;p. E-5-64, , 4

4. p. E-5-34, , 1;p. E"5-BE, , 2

5. p. E-5-37, '2

6. p. E-5-39, , 5,6;p. E-5-42, , 3,4;p. E-5-48, '.1,2

7. p. E-5-42, , 3,4,p. E-5-48, , 1,2,

B. p. E-5-45, , 2

"

9. p. E-5-47, , 2,3

- 15

5. SOCIOECONOMICS

Provide data on the distribution of temporary andrental housing or lodging unib throughout theproject region. Provide date when supplementalinformation w111 be ~Yaflable.

Provide I discussion of impacts related to deve­lopment of the proposed project on Native Alaskans.Provide date when supplemental information w111 be4voil4ble.

Explain the discrepancy between the ratios of. direct workers plus dependents to support workers

plus dependents (3:1, 1:1, 4:1) and the .ulti­pliers used to generate population projections(ranging from 1:1.2 to 1:2.4).

Provide information on how expenses of the schoolonsite wtll be sh...d by APA and the Borough.

Document that the state will assume responsibilityfor maintenance and winter plowing of the DenaliHighway and maint2nance of the project access roadduring and after project construction, whether ornot the road is eventually closed ~ pUblic access.

Discuss the conditions under which Ma strain onthis infor=al system~ will be defined as occurring,as well as a plan or alternatives for who willprovide these services. Provide date when supple·lIlental information will be provided.

Provide information on the cocnposition of the:. oosite Illedical and hospital staff and where that

staff w111 cOllie from (e. g.. , housed onsfte orcommute) ..

Provide an estimate of how lnany of the railheadconstruction workers would he employed at theWatana and Devil Canyon sites after the railheadfacilities are completed.

Provide date that information will be available onroad surface for the Denali Highway and on naviga­tional and traffic aid needs in Cantwell. Providedescription of these studies.

- "

..__ ..- .. ' -_... _--.__ .-- - --".

'. ,- 16 -

10. p. E-5-55, , 5,through

p. E-5-56, , 2

11. p. E-5-59. , 1

12. p. E-5-60. , 4,and

p. E-5-n. , 1

13. p. E-5-63. , 2-4

14. p. E-5-70. , 1through

p. E-5-78. , 4

15. p. E-5-78, , 6

16. p. E-5-79. , 1

17. p. E-5-81,_' 3,through

p. E-5-82. , 6

18. p. E-5-86 , , 4;p. E-5-90, , 2;p. E-5-93. , 2

19. p. E-5-95. , 7

Provide information on vhether the payroll figuresinclude payments far housing, on whether meals willbe included for all single workers liYing inonsite housing, and on how workers w111 qualify tolive in on51t.. housing. both single and fanlilyunits.

Describe the local hire progr&m planned.

Provide the number of workers who w111 be housedat the railhead camp and whether they are included1n these figures on settlement patterns for theMat-Su Sarough. Describe the railhead camp.Provide date when supplemental information will beprovided.

Provide information on other projects proposed torthe region during the same ti•• period u thisproject.

Includl thl capacity of and illlpacts to lodges,other temporary lodging units, Ind tral1.r parks.Provide date when supplemental intonution w111bl provided.,

Provide information on the location and numbers ofthese isolated residences that would be displacedby the project. Providl dati whln supplementalinformation will bl providld.

Describe existing housing and commercial operationsand potential project impacts along the proposedrail line. Describe the ongoing study of landimprovements. Provide a date when'this study andthe supplemental information on housing and commercialoperations will be provided.

Provide quantified estimates of project-relatedSUbcontracting expenditu~s.

Discu$$ how shortfalls in Borough M!venues willbe ~solYed. Provide date when supplementalinformation will be provided,

Provide explicit discussion of, the relationshipbetween the recreation plan and the exacerbationand management of increased competition withinthis user group. In addition, explicitly relatethe establishment of a perma~ent vi~lage to effectsupon this user group.

·."

---_.. , ...... ,.

2~. p. E-5-102, , 2,• nd

p. E-5-104, , 5.through

p. E-5-105, , 1

21. p. E-5-104, , 5

22. p. E-5-liO, , 2

23. p. E-5-li6, , 4

24. p. E-5-117, , 2

25. p. E-5-120, , 4,through

p. E-5-121, , 3

26. p. E-5-125

27. p. E-5-125

28. p. E-S-12S, 1 1,t", "l""h

p. E-5-13., , 5

29. p. E-5-126, , 3

30. p. E-5:128. , 2-5

31. p. E-5-129, , 3

17 -

Describe the .onitoring program and provide dattswhen data wfil be Ivailable.

Provide estimates of the current level of permitviolations and non-penJ1t hunting, especially 1naccessible areas, Ind of .ffects of increaseddemand upon these levels.

Provide dates when these data will be available.

Relate doubling of hunter d....nd indicated inTabl. £.7.13 to curr.nt us. of GMU 13E, the ..in..... of impact.

P~1. current AOFG Ilanagellent regulations forCKJ 13.

Indicate illlp.cts to trapping .ctivity becauseof increased accassibillty provided by projectroads Ind structures.

Identify options for reducing impacts to the fish/wildlife user group.

Describe procedu...s that will b. followed inopti.izfng the resolution among conflicting interestsfor litigating illpacts to recreation, fish/•. ldlifeusers, and the fish/wildlife supply.

Indicate specific applicant-proposed and committedmonitoring and .ftigatfon plans. Discuss role oflocal community and ragiona' offlc1all. Providedate when supple~entll information on these planswill be provided. Provide plans for the railheadconstruction camp in Cantwell after the railheadis camp1eted.

Describe studies and monitoring programs and give- dates vhen dau will be ayailable. .

Provide speCific phns for adjusting projectschedules with reference to other projects; timingof workforce duandi leave, shift, and shiftrotation schedules.

Provide detailed plans for ·siting. type. quality.and. administration of housing and related facilitiesfor work.ers" when avafiabla.

.' .

32. p. E-S-129, , 4,through

p. E-S-131, , 4

33. p. E-S-132, , 3

34. p. E-S-133, , 5,tnrough

p. E-5-134, , 6

35. p. E-S-137, , 3

36. Figure E.5.1

37. p. E-5B-3, , 6,through

p. E-SB-4, , 1

- 1B -

Indiclte specific Ippllclnt-proposed mitigltionplans an transportation, including rail, pooling,and air .1ttrnatives, and funding (e.g., conditionsfor payment of travel expenses for workers). Citesources of info.....tion on other projects (p. E-S-130,'3). Provide dlte vhen suppleoentol info.....tionwill be provided.

Indiclto specificilly how thresholds.of "inldeqUitely­.et deeand- and of cast·.ffeetiveness of .itigatiDneeasu~s will be determined.

Provide descriptions of dato Ind ..thods of dltocollection and analysis to be used in C1onitoringInd updating i""lct ..so..ments. Provide dlt..suppl..entol infonution on tho monitoring plIOIOd usesslltnts will b. provid.d.

Provide date infonnation will b. Ivai lobI. on thestudY of the possible new locltion for the permanenttownsito.

Provide I map showing ••jor transportation routesplus III co,,"unities referred to in this chapter(e.g., Wasilll, Tropper Creet, which do not opP.lron oth.r maps in the application).

The stondards of 2S stlJdents per CllSS for primaryschools M1d 20-22 for secondary schooh for the!3arough Ire not tne SaIIi! ones which appear onTobl. S.B.1, p. E-SB-7. Identify which were used.

In Iddition to tho Iboye it.eols from Chapter 5, tho following specificinformation requests are madl based on the responses to agency comments whichappear in Appendix EllJ, "Comments Received fro. Agencies Concarning the Draftlicense and the Power Authority's Respons. to these Comments.-

38. Responses to Alaska Department of Natural Resources Letter of January 13,1983:

a. CODIIent 9

b. Cement 10

Provide refennces of TAPS studies reviewed.

Provide description of how illlPact model will beupdated and dates when updates will be available.

39. Responses to Alaska OepartJllent of Fish and Game Letter of January 13,1983: Chapter S, Specific Comments.

-.--

'. '.

a. G-S-OOI E-S-6/1

b. G-S-008 E-S-68and

G-S-017 E-S-711S

- 19 -

Provide description of study l'Iethods and plan.data on the lIilllporlance of the natural resourceharvest to the local impact areaU to be collectedin 1983 -through interviews with residents ofselected communities,· and date when data will beavailable.

Provide data that will be collected on fish andwildlife user groups in Cantwell and other commu­nities in the project region, and indicate datewhen these data will be available. Provide descrip­tion of study plan and methods.

-,'--

1. p. E-6-1 top. E-6-42

2. p. E-6-3, 1 1

3. p. E-6-4, 1 4

4. p. E-6-11

5. p. E-6-15

6. p. E-6-20, 1 2

7. p. E-6-25. 1 1

8. p. E-6-28

9. p. E-6-30. 1 4

-_ __ ..

- 20 -

6. GEOLOGICAL AND SOIL RESOURCES

Include a detaIled description of salls, Includingthe types of occurrence, physical and chemica'charl.cte.rbtics, erodab111ty, and potential forBaSS soil aovtme.nt tor fmpoundnent arelS, Iccessroutes, transmission line rautes, borrow areas,construction camps, and other project features.

If known, provide the geologic name. of the strati­graphic units In the area.

C.omplete the hst sentence in the paragraph.

Provide a tabulation of significant seismic eventsand their intensities It the site. Also provide I.plot showing cumulativi magnitude-recurrencefrequency for each seismic source Irea identifiedIn the stull>'.

Document any studies that describe the origin of-the Fins· featuri. Describe Iny investigationsunde.NIY to discover other unidentified sheartones beneath the other incised porti,ns of thlre11ct channel. Indic&te the scope of these1nvt~tigations, provide s~ar1es of thes. findings,and estimate completion dates for th~5e studie5.

Describe in greater detail the presence of stressreHef joints 100 ft back froll the Devil Canyondamsite gorge walls and the large detached rockblocks ~easuring 25 ~y 50 ft on the left abutmentIS described in the Acres Amer1cln 1982 Geotechn1c&lReport Vol. 1 (e.g., depth of joints, probability

. of failure of block during 0",101.1I Intensityquake, probable setche effects).

Estilllate the number of hectares expected to beaffected by each type of slope failure for eachreservoir. :~..,' ,.' .•.

.~~. .Analyze how the previouJ substantial glad.''oading and unloading of the region Day .ffect theprobilbi11ty And ma!;1nftude of anticipated RIS.

Provide estimates of the amount of piping of therelict channel north of the Watana site exit pointon Tsusena Crtek that .ay be expected IS a result

._"'-~"= .--_. __ :_.=..- -_.•...•.. _- ~.

,.

10. p. E-6-34

ll. p. E-6-35, , 3

12. p. E-6-4O. , 3

13. p. E-6-41

- 21 -

of seepage. Discuss the nature of future investi­gations to assess the seepage proble. and thecriterh, to be used in dettnnining .itigationmeasures.

Esti ...te the potential for slope failure anderosion to extend beyond the project boundaries.Identi fy are.. where this tay be ..st 11 kely tooccur and estimate the number. af hectares to' beaffected.

Provide an analysis of the effects and probabilityof seis.icl.lly induced seiches. Estimate thewater-lIvl' fluctuations due to seiches.

Provide the critari. whereby the .ft1gat1on aelsuresto reduce the leakage through the reIict channelwill be chosen. Provide an analysis of thl impactsof each of these alternative ...surtS.

Estimate the liquifaction potlntial for all uncon­solidated alluvial and glacial deposits within theriver valley and accass Ind trans.ission linlroutes. .

14. p. E-6-41. , 8

15. general CDlIIIlent.

If the excavation of the buried channel lTel isrequired, lS"tiaate the amounts of additionalborrow-alter;.' that would be required Ind indicate'tfMch bOrTOW areas would bl used.

Indicata what potential iapacts would be associatedwith construction of acclss roads, transmissiontDvers, Ind temporary and pe.manent constructionvillages on permafrost and 'tfhat mitigation measureswill be used during such construction. Documentother studies that haYI analyzed such impacts andmitigation measures in similar regions.

. .

1. p. £-7-12. , ,

2. p. E-7-17. '5

3. p. E-7-18. , 4

4. p. E-7-19, , 1

5. p. E-7-30. 1 2;p. E-7-97. , 4; •p. E-3-422. 1 3

...6. p. E-7-34, 1 3

7. p. E-7-44, 1 8

. ,- zz -

7. RECREATION RESOURCES

Provide documents and other Iv.flabe fnlor-It1onlupporting the conclusion that ~he .1ddl. SusftnaRiver las1n 11 unsuitAble tor inclusion in theStat. Perk Sy.tem.

No .tructure. ere epperent In Figure. E.7.6, E.7.7and. E. 7.8. An the structures referred to thosathet ere shown In Flgu... E.7.47 .

V.rlfy thet there .... 11 .tructu.... .t High likeLodge; I.g., sevin structures are shown in Fig­UTO E.7.4. Tobl. E.9.5 end FlgUTO E.9.9 Indlcetethe presence of n1ne structure, and tvi) cabinf.undatl.n. It High like l.dg.. Inf.....tI.nconcerning structures IS presented in Figures E.7.4end E.9.9 end Tobie E.9.5 sh.uld b. comper.d Indthe dhcrepanc1u corrected. For example, theTsusena lake Lodge is located BOrt thin five .,1ejlfr.. rsu..n. leke In Figu... E.9.4. .

Provide c.ple••f eny reguleti.ns devel.ped by BLMfor management of public trail. located on locall.nd. selected by Hatlve C.rp.r.ti.ns. A... thesix easements identified fn the stu~ Irea shownIn Flgu... E.7.47 If n.t. provide. up .howinglocaUons of the e:asuentl. r··

.,;; .....,Provide In explanation of the b._is for In£1c1- ..plting thet ell game hunting by project pers.nnelwould be pr.hiblted and pr.vid. e r.ti.nal. IS tohow .uch • prohiblti.n would b. justified endenforced. . .

~ _ _ t. ...

* Specify target dates for completion of studies andsubmission of the recreation development plan fortransmission 11ne corridors.

Provide deteils dem.n.trating how this celculetldrecreation d••and [Sec. 3.2.3(.)] v.. facto...dinto development of the Recreation Plan. as presented1n-Section S. For e~amplet which of the proposedrecreation sites wauld be required to satisfydemand at the year ~OOO? How would visitation tovisitors centers at dati sites be factored intodemand estimates?

. .

. .... ..

8. p. £-7-67, f 2

9. p. £-7-69,Section 5.4.1

10. p. £-7-97, f 3

11. p. E-7-101, f 3

'- . r--

- 23 -

Prav; de a copy of the 1974 document by theU.S. Department of Agriculture that was used as abasis for calculating carrying capacity of thevarious recreation sites. Also provide details asto ho.... the methodology presented in the documentwas Il JUodified" for use in calculations of carryingcapacity as presented.

Compare information common to Section 5.4.1through Section 5.4.5, Section 6.1.6, Tables E.7.17and E.7.18, and Figures E.7.7 through E.7.17 andcorrect all discrepancies with respect to (1) phasi1gof developlllent, (2) proposed facilities to beprovided. and (3) estimated casts of Ilrecreationplan project features. A Provide Glore specificinformation fOT proposed recreation sites 0 (lyoneconfluence with Susitna). B (Butte Creek/Su5itnaRiver), A (Middle Fork-Chulitna River), and H(Tsusena Creek), 1.e., information comparable tothat shawn for other proposed recreation areas inFigures E. 7. 7 through E.7.17 (include additionalups as appropriate).

Indicate if the proposed airfield will be availablefor general public use during project constructionand/or operation.

Provide target dates for finalizing plans andsubmission of information relative to Phas -Twoengineering design specifications, final sIteselection, and site-specific data for all Phase-Oneracreation developments identified in the Recreation

·Plan.

12. p. E-7-101, f 5

13. p. £-7-101, f S;p. E-7-110, f 4;p. E-7-113, f 3

14. p.' E-7-105, f 1

Provide ~typical or similar facility design standanufor the Susitna project," as proposed in the text.

Copies of - any existing agreements, as well asany future arrangements bet....een the applicantand cooperating entities rftlative to implementationof tne proposed recreation plan, ~ust be submittedto the Federal Energy Regulatory Commission.

Aside from APA, the Division of Parks, and directlyaffected 1and owners I sped fy how other 1oca1residents 'Would be involved in decisions concerningscheduling and implementation of increased recrea­tional developments.

".

8.

,4 -

AE5THETIC RESOURCES

1. p. [-S-~O. 1 1, tcp. [-S-31, , 4

2. p. [-8-33, 1 1-8

3. p. [-8-36 tcp. [-8-41

4. p. [-8-39 tcp. [-8-40

5. p. E-S-41

6. p. E-8-50, 1 3-5;p. [-S-53 tcp. E-S-59

7. p. E-8-61, , I, top. E-8-68, , 3

Indicate if the four natural features of ClearValley (p. E-8-22), lIatana Creek Falls, lIatanaLake (p. [-8-24). and Tyone River are consideredexceptional in relation to the project ."1. Ifso, describe them in the Exceptional NaturalFeatures Section 5.2; include photos in the appendix,and shov their locations on Figure £.8.5.

Provide I brief description (e.g., viewer vantagepoint. viewing distance, number of potentialviewers. duration of view) of those significantviews that aTe indicated on Figure E.8.8 andnentioned 1n the charts of Appendix a.F. Providea similar level af info~ation for the the trans­.inion line corridor, inclUding the intertie.

Indicate 11 there is • distinction between useof the terms Itmedium" and "llOderate", which areused interchangeably 1n the Aesthetic Value andAbsorption Capability Rating Charts and on theCo~osite Rating Matrix.

Indicate whether the absorption capability ratingfor the landscape character type of Tanana Ridge1s 'low" (p. E-8-39) or 'moderote'. (p. E-S-4O).

Indicate i1 the absorption capability rows havesialilar high, a'lediunl, and low designations assho",," for the aesthetic value rating colutllns.

Indicate if all (or which) lIitigation optionsc:enti oned withi n the tut will be undertaken.

Provide & similar level of description and analysisto that used for the project area, access roads,and translIlission lillt stubs (including photos.mapping, and descriptions of landfo~s, waterforms.vegetation, and views) for the 1ntertie transmissionline corridor landscape types of Talkeetna lowlands,Chulitna River, Broad Pa!;s, Alaska Range. andYanert River Valley (Step 3). Briefly describeand indicate on maps (Step 4) all significantviewpoints, vie sheds. distances, and potentialnu~bers of vie ers along the entire transmissionline corridor (e.g•• at road crossings. river

----~_:- - -_._- --'~-'_._.._;.'.... . ... .

- 25 -

8. p. E-8-61. f 1 top. E-£-68. f 3

crossings, skylined areas, etc.). Provide aestheticvalue and absorption capability ratings for theintertie landscape character types (Steps 5 &6)and determine the project feature impacts (Steps 7&8). Finally, p~vide proposed mitigation measuresfor the I.tertie project feature (Step 9).

Indicate the potential utent of visual impactsto the Denali National Park and Denali State Parkdue to the location of the proposed translllfssfonline. Discuss the significance of these impactsin relation to viewpoints, distances, duration,and nutlber of viewers. Indicate ho... any visuali~pacts to these are~s will be .itigated.

.' : - 27 -

10. ALTERNATIVE LOCATIONS, ~ESIGNS, AND ENERGY SOURCES

1. p. E-1o-6, , 5

2. p. E-10-7

3. p. E-10-7 t<lp. E-10-12

4. p. E-Io-11, , 5

5. p. E-IO-11, , 5,through

p. E-IO-12, , 10

6. p. E-IO-12, , 10

7. p. E-10-13, , 1

8. p. E-I0-23, , 6

9. p. E-10-24, , 3ff

10. p. E-Io-26, , 5, t<lp. E-IO-28, , 5

11. p. E-Io.27, , 6

Provide the basis for detenlinfng the ·cut-offpoints· for rating the 16 sites and a descriptionof how partial and total score~ wert integrated toyield selections.

Describe what, it iny, geologic constraints we"reanalyzed in assessing the alternative damsfteillPacts.

Provide availabl. Information describing thepotentia' for slope failure that may be expectedat the three alternative dam lius, as well utheir potential for RIS, the extent of permafrostsof1s, location of .ajar fault systems, the extentof .ineral resources in the aTea, and the projectedreservoir sizes.

Provide .• brief description of what 1s considered·typical scenfc qcalfty· for the Snow Site region.

Provfdt I brief description of the socioeconomicenvironment 01 the Snow and Keetn. sites.

Provide! orief description of the identified landuses for the Keetn. sitt.

Provide estimates of the acreage of vegetationthat would be lost by construction of theChakachamna. ~now. and Kettna sites.

Provide a cOll'lparison of socioeconolllic factors. (e.go. housing. transportation, community attitudes)

in the comparison 01 alternative plans.

Indicate what weighting was assigned to econo~ic,

environmental, and social attributes.

Provide estilflates 01 the acreage of vegetationthat would be lost by construction of the HighDevil Canyon-Vee damsites.

Provide documentation for 1~portance of Vee reservoirarea to key furbearers.

". '.

1. p. E-9-9, , 2, top. E-9-13 , , 2

2. p. E-9-13, , 3

3. p. E-9-27, , 3, top. E-9-29, '! 6

4. p. £~9-31, , 2, top. E-9-52, , 2

5. p. E-9-31, , 2, top. E-9-52, 1 2

6. p. E-9-49, , 3, top. E-9-51, , 4

7. p. E-9-50, , 1

- 26

9. L.A.~O USE

Describe the existing land status for the 1ntertieportion of the proposed transmission line corridor.Indicate if Table. E.9.1 and E.9.2 include datafor the inte~tie. If they do not. please in ludeland status/o~nership information for the intertie.Provide figure. (siollar to Figure. E.9.4-E.9.6and E.9.10-E.9.12) indicating land statu. and landuse development ~aps for the lntertfe section ofthe proposed transmission Hne corridor. landawnership should be provided for the intertieportion of the translllission line corridor inExhibit G, plate. 34-37 and 41-45.

Indicate the existing land values for the projectuea, transmission line corridor (inclUding theintertfe.), lnd adjacent lands to assist in sub­stantiating statements in Section 3 of the LandUse chapter concerning changes in land values.Include a projection of future land values. Ifland values cannot be precisely determined for theproject area or trans=ission line corridor. includesome indication or examples of typical land valuesfor the types of land in the project area.

Describe existing land use management plans forthe proposed tran~ission line corridor, includingthe intertie..

Estimate impacts to land values within and adjacentto the project area and transmission line corridor.

Indicate how proposed land uses within and adjacentto the project area and along the entire transmis­sion line corridor will affect existing wetlandand floodplain aTeas.

Estim~te induced land use changes (development andactivity) for the intertie section of the transmis­si on 1i ne corri dOT.

Indicate if there are a~y other proposed agriculturalsales along the entire transmission line corridorother than the Point Mackenzie agricultural sale.

,.

'._. --_.....

- 28 -

12, p. £-10-38, t 5

13. p. £-10-40, t 2

14. p. £-10-42, t 1, top. £-10-43, t 2

15. p. £-10-42, t 1, top. £-10-43, t 2

16. p. £-10-42 top. £-10-83

17. p. £-10-49, t 5

18. p. £-10-54, t 4

19. p. E-lD-61, t 1

20. p. £-10-61. t 3, top. £-10-n, t 2

21. p. £-10-69 top. E-I0-79

Describe the criteria used for evaluating respons­iveness of acce~s plans.

Explain hov aesthetic resource issues were factoredinto the evaluation and co~parison of alternativeaccess plans.

Indicate whether the alternative access routecOrT"idors will follow the alignments shown inFigures £.10.7 and E.10.8 or those 1n FIgures £.3.42­E.3.47. If the aligncents shown in Figures E.lD.?and E.lO.8 will be used, then provide vegetationand wetlands Claps for these alternative routes.Al.o provide estillates of the number of hectaresof vegetation types that would be cleared for thealternative access routes.

Estimate the acreage of wp.tlands to be impacted byeach of the three alternative access routes, and pro­vide a brief comparison among routes of the extentof access route effects on wetland drainage patterns.

Indicate if the impacts associated with excessiveslope. pen:lafrost, erodable or proble:m soils,landslides or slumps will be any IDON!: (or less)severe within the alter~tive transmission corridorsthan within the preferred cor~idor. Also indicatewhether construction material requi.emenu a~

expected to be similu and if agricultural soilswill be crossed to the same extent in the alterna­tive and preferred routes. Docu~ent these conclu­sions by citing applicable studies.

Describe 'Weighting facton given to the criteriaused !n .aking the final choice.

Provide a description of the selection process ferrouting fram Healy to Villow.

Provide the criteria fer assigning ratings to eachalternative corridtlr.

Provide estiMates of the number of hectares of vet­lands withl" each of the alternative transmissioncorridors in t',e Northern and Southern Study A~as

and each of the technically and economicallyacceptable alternatives in the Central Study Area.Provide similar estimates for vegetation typesthat 'Will require extensive clearing.

Indic3te if any transmission line alternative isexpected to require more (or less) construction ofaccess roads.

22. p. E-10-BO, Y 1, top. E-10-B3, , 3

23. p. E-10-B3 top. E-1O-1G4

24. p. E-10-B3, Y 4, top. E-10-104. Y 4

25. p. E-1O-129

26. p. E-10-143, Y 4,through

p. E-10-172, Y 2

- 29 •

Explain how a~sthetic resource issues werefactored into the evaluation process for thetransmissi~n line corridor to link the dam siteswith the intertie.

Document whether the surface soils at the alternativeborrow sites aTt expect.ed to be similar to ordifferent from those in the proposed project area.

rrovide a brief discussion of how aestheticresources were used 1n the evaluation process ofdetermining borrow site alternatives.

Provide estimates of the aggregate and rock require­ments and the acreages that would be disturbed bythe construction of new access roads associatedwith the Tidal Power alternative. Indicate 1fthere will be topographical. permafrost, or slopestability constraints associated with thes~ roads.

Provide a generic description of socioeconomicimpacts of thermal alternatives other than coal,nuclear steM" electric generation, biomass, geo­thermal, wind, and solar alternatives.

'...;. .. .. 30 -

. 11. LIST OF lITERAnJRE

Provide ade~uate reference information for the following:

1. p. E-3-232, r 4

2. p. E-5-129, Ir 2

3. p. E-7-87. 11

4. Tabl. E.7.9

S. p. E-8-71 top. E-8-72

6. p. E-IO-120

7. p. E-IO-121

8. Tabl. E.7.13

9. Tabl. E. 7.16

Wood .t .1. (1975).

Provide references for stat~ent on cOlmlutingexperiences of workers on similar projects.

National Recreation &Park. Open Space Standards.

Fran~ Orth &Assoc., 4/82.8orough Planning D.partm.nt, 10/21/82.

All references listed in the Aesthetic ResourcesReferences Section should be appropriately citedwithin the written text of the appl ieation. Ifthese listings are not citations, please indicatethat they constitute a bibliography.

eIRI/Plac.r 1981.

8att.ll. 1978.

EOA'" estimate.

EDAW Inc.

'.

- 31 -

Provide copies of the following:

1. p. E-2-195through

p. E-2-202

2. p. E-3-198, , 2

3. p. E-3-198, , 2

4. p. E-3-205, , 1

5. p. E-3-23o, , 4

6. p. E-3-279, , 2

7. p. E-3-284, , 1

8. p. E-3-551through

p. E-3-556

9. p. E-5-6, , 5

10. Refennces I

Chapt!r 5

11. p. E-6-7," 4

12. p. E-6-11, , 3

13. p. E-lo-115, , 1

Acres American 1982c. 1983; Acres Am. ConsultingService ltd. 1980; Alaska Department 01 FishAnd Game 1982., 1982c, 1983; Alask: Department ofNatural Resou~es 1982; Dwight 1982; Peratrovich.Nott i nghlJll and Drage 1982. 1983; Pehrson andNichols 1982; R & H Consultants. Inc.• 1981a.1981c, 1981d, 1981e, 1981f, 19819, R &H Consul­tants. Inc., Harrison, W.D_. 1982a, 1982c. 1982e.1982f, 19829, 1982h, 1982i, 1982j; ResourceManagement Associates. 1983; Sc~~;dt, 1981; Trihey.1982a, 1982b, 1982c.

Commonwealth Assnc. 1982.

Joint Federal-State land Use Planning Collltnissionfor Alaska 1973.

Hettinger and Janz 1974.

Kerr 1973.

Pamplin 1979,

Foote 1979.

E5SAIWELUT/LGL 1982; Alaska Department of Fish andGame 1982d, 1982e, 19821, 19829, 1983; Arctic Environ­lIental Infonr.ation a. J Data Center 1982; Bell1973; 8urger et a1. 1982; Edfelt 1981; Fri ..e1975; Hill' 1979, 1980, 1981, 1982; R~~ Consultants1982., 1982t; Trihey 1982b, 1982c, 1982d, 1983.

Stephen R. Braund & Associates. Inc. Harch 1982.

Policy Analysts, limited and Or. Richard Endp.:rHay 1980.

Vooo~~r~·Clyde Consultants' 1980 report.

Woodward·Clyde Consultants' 1982 report.

Battelle reports on po~er alternatives (Battelle1982) and coal consumption (Battelle, no dat.e,8h~L-RAP-21. UC-ll).

·..

T~ANSHISSION FACILITIES

- 32 -

12. STATUS OF FACILITIES

Load now plota and electrical transmi •• ion data CO:1talned respectively1n En91neerln9 Report, R-2423, ·System Studies of the Anchor..age-FairbanksIntertie,- March 1982 and -Anchorage-rairbanks TranslIIission lntertle Tranli­mis510n SysteD Data (Revised June '981)- provides 1983-1984 .ystem loads and230/138/69 ltV network conflquratlona for the five Anchorage/Fairbanks, Al.akautility .ystem. following 1111plemeutatlon of the 138 ltV Anchorage-FairbanksIntertie. With the 1ft.tall.tian of Susitn. generation, the Intertie, designedfor 345 kV operation, viII become pArt of the Railbelt 345 ltV translII! sslon.yatem.. At that time, 345 ltV step-down substations (Ester, Willow, Konik Arm.and university) will be established .s shown on Exhibit r. Plate r74. There­fore, information i. needed. and vas reque.ted, aD the integration at theAnchorilge/Fairbanks ar.a utility ayatellu:' 230/138/115kV facilities viii the!:ster, Willow, J:nik Arm and University substations. for 1995 and 2002. They.ilra correspond respectively to the proposed Watana plant (1020 I1W) andDevil Canyon plant (600 MW) in-.ervice availability dates.

The following information should be provided for the 1994 and 2002 Alaskainterconnected system.

(a) Par 1995, electric single-line sche=atic diagra=. showingthe eleetrical con~eetion at lines and Bubstation facil­ities frollt.:

(1) the Ester 345/138 kV substation to the Golden ValleyElectric Association, Fairbanks Municipal Utilityor other area system.;

(2) the Willow 345/138 kV and Knik Arm 345/115 kV sub­stations to the Matanuskil Electric Association orother area systems, aDd,

(3) the Univeraity 345/230-115 k? substation to th~

Anchorage Municipal Light' Pover, Chugach ElectricA.sociation or other area system••

:b) Similar Infor=ation for the 2002 systems should be pro­vided, when available.

'the information should be provided in the format used In the "PA doculIlent·Anchora9~-Fillrbank. TriinslIl!.sion Intertie Transci •• ion System Oata (RevislonJune 1981).-

• i

- 33 -

13. ELECTRICAL ENVIRONMENTAL EFFECTS

10 En91fteerinl] Report R-2394, .June 1982, vas provided containing .. discus.lonand data on the electrical environmental effect. a ••octated with theAnchorage-Fairbanks (Willow-Healy) )45 ltV tranSll.l •• 1on Intertie. Thefol10V1n9 additlonal infor•• tlon a.aociated with this anelyni. should bepro,,':'~ed:

( 0 I Audible nol.. and radio frequency nol.. levela wherein three345 ltV trans.i •• lon 11nea v111 ultimately be in the rlqht-of"'ay (ROW) were calculated ·using methods developed at Projectcav 2/,· where 2/ re fer. to th« t 1 ra t ed1 tian of Transmission,Lcl,n"-,.c-_R""."f".,-"r~.cn,-"c~.,--,.,;;"O~k,-,.~),-,'"S,-k,",v-,o,,,n,.,--.""b"o~vCo~d. ted 19 7!i •

(1) Indication should be 91 ... n of the specific equationsand/or design cur.es us.d in the reference book.

( 2 I Provide the method uaedmultiple line. on the .ame

toROW.

acc aunt for tho effects of

(b) Provide the predicted le.el. of '1'ele.ision Interference (TVI)at a ~easurin9 frequency of 75 MHz and a meter bandwidth of150 kHZ, specifying the calculation method used includinqhow multiple linea on the aam. ROW are accounted for.

(c) Gi.e the method used to calculate the electric fieldstren9th lR-2J94, 'f.-bllt 7).

(d) Provide the method uaed to calculate induced current.(R-2J94, Page 12).

(e) Ambient audible noise level data on the intertie ROWroute ahould be provided.

II. ComDl.unicatlon interference, audible noiae qenerated by corona form;.:tionand ground-level electric and ma9netic field inten.ity data tor all 345kV transmieaion line ROW aections to be constructed aa part of theSusitna Project was requested. As ind1cated 1n I, Enq1neering Report R­2394 only addresses the Willow-Bealy aection. Therefore, similar infor­mation should be provided. aa auqlllented by lib) and (e), for thefollOWing other 345 kV overhead transmis.ion 11ne ~OW a.ctiona;

ROW Section

Healy-EsterGold Creek-Watan.Wl110w-J:nik ArmJ:nik Arm-University

ApnroxilDate ROW Ml1ea

••o..19

... ,.:

- 34 -

ENGINEERING

1... GENERAL

1. In Section '.llb) on paqe A-1-6, provide .. IItatement of the flood fre­quency ",hieb "'.. uee4 to determ! ne the 9 feet of freeboard for vaverunup and ice protection at the up.tre •• cofferd•••

2. In Section 7.4Cb) on paq& A-7-7 provide .. detailed discussion of thetherm.l stud1 •• conducte4 to determ!ne that vater f10"'1n9 throu9h DevilCanyon viII be at 3 .. ·P. The 2- difference bet"•• n freezJ:19 ADd theanticipated "'.ter temperature ba. b ••n ueed •• the b ••i. for not provld­1n9 fre.board allowance for ice. Thi. • ••u_ption require. ... hlqhdeqr•• of analy.1e accuracy. Delllonetrata the accuraey of the computer1Il0del by sublllittinq calibration atu41 •• ua1n9 known data. Also. prOVide.. statement of the flood frequency u.~d to determine the ..,ave runupfreeboard allowance.

3. Provide Ebasco'. detailed cost .atimate in support of Table 0.0, showingunit coats and quantitie ••

4. Pro" id eReport,

the 1981 Bechtel reportInterim Report,· prepared

titled,for APA

·Chakachamnaand cited on

Hydroelec'~rlc

page 'E-1 0-7.

5. Pro"ide the 1903 Bechtel Report titled, ·Chakacham.naReport,· Draft report prepared for APA and cited on

Hydroel ectricpage £-10-9.

6. Provide the O.Alternatives forpage 'E-10-12.

S.the

Department at Energy reportAla.ka Rllinbelt,· prepared

ti tl e.by A.P A

-Hydroelectricand cited on

EXHIBIT rAND SUPPORTINC DESIGN REPORT

1. Provide 'lave run-up calculation. ahoving the tIIethods and assumptionsused to deterDline the 3 and S feet freeboard allowancee built into theDevil Canyon and Watana Daru respectively IExhibit r, Supporting DesignReport SOil).

2. Pro"ide the results of 1IIodel teat., or calculations, used to determine(or verify) the modes of failure for the propo.ed tu.e pluga used inthe Watana and Devil Canyon ...ergency apillwaya. (Owga F18 and rS8).Theae tests, or calculations, should shov the failure tilles underadverse condition. such a. freezin9 weather. Submit example. of aimilardesigne, ueed at other location., undar comparable veather conditions.Alao, snbmit details of coat colftpartaon studte. conducted in sUPP1?rt ofthe decision to utilize the fua. plU9 design rather than increaae the.lze of the emergency and aaln service .plilways to handle the PHP('Exhibit r, SDR).

... ',,'. :.

- 35 -

3. Provide calculation. and criteria in eupport of the hydraulic desi9n 'J!

tt'ae Wa~an. And Devil Canyon .ain apillvaya (Dv9. r12 and FS41. Speci­tically, ahov calculationa to aupport. the propoaed locationa of theareation alota and. the de.i9n of the ener9Y di.l5ipatinq flip bucket ••In addition, prOVide a .,j,1!"cuasioll of the extellt of hydraulic 1II0delteatinq propo.ed to verify the hydraulic d.signa at the apillway. alldflip buck.ta (Exhlbit F, SDR).

4. Provide a cSiscua.lon in the report of the type. of hydraulic 1II0cSel te,:ta(inclUding tho•• reque.ted in .0. 3 abo•• ) vhich are propo.ees for l;h.",.tana and Devil Canyol'l developaents. Are.a of concern are, the Wat,lnariqht .butlllent area where: t.hree: intake atructurea are located and ":he",.tana Illain apillway tailrace area "here the diver.ion tl>nnel portals,outlet facl11tlee and. paver tailrace. are located (Exhlbit F, SDK).

5. Provide a discu •• ion of the geoloqy and the fot1ncSat.1on and excavationtreatment propo.ed lor the W.atana .ain .pl11way tail, ace area. 'fhia.rea is located near the -fingerbuster- geologic feature and i. hlc;hlyconqe.ted vith aeversl u.nderqround and .urface atructurea. Adver.ejoint orientation, shear zon.s or v...k rock in thi. area would af2.ctthe desiqn And conatruction. The eteep slopea, deep cuta and excavat.ioDrequired could ha'1e an impact upon the atability and aafety of th•• e.tructures, especially the spillvay flip buckMt atructura (Exhibit r,SDR Section 4.1(c»).

6. Cite a reference for th• .,quation propos.d for the at-rest earth preSI:urecoefficient. i.e. k o ·1 - Sin~ (Exhibit F, SDR, Section 3.2(b».

7. In nav designs, a cracked base i. acceptable only for tiarthqu,~e loading.The .econd paraqraph should be reviaed to indicata that cr .. ..:king "illonly be allo"ed under earthquake loading (Exhibit Y, SIlR, Section 3.2(9),page Y-3-4).

8. Clarify the earthquake loading vhich vill be us.d for lIIass concr. teretaining structure. by shoving the etatic seismic coefficiants propoa"d.Also, shov the seismic 10adin9 vhich viI} be us.d for the Watana I.ndDevil Canyon Saddle Dam embankments and discuss the methodll of analy.i.vhich vill be uaed. Sublllit the analy.i. referred to in 4.1(ql(vii).(Exhibit F, SDR, Section 3.2(h), p&qe F-)-5.)

9. Diacuss the parameter. considered in the aelection of the ice l.<olad (10kips/lin. ft.), such aa vinds, currents, and theraal atraina a. ve.. las the geometric confiquration,J of the various dam.. Cite the referenc,'auaed vhere applicable (Exhibit t, SDR, Section J.)(j). paq. F-3-6,.

10. The overturning criteria shown in Section 3.3(c)(i) should be baa.dupon the location of the resultant for all loadiog condition.. Tl:eFActora of SAfety aqainst Overturninq (FSOT) shovn a:-e not consistentvith the compression .afety factor. clted, and, in .11 c ••ea (exceptthe norlll&l condition) allov the resultant to fall outsida the lIIiddle·half of the ba.e. For unusual conditione, the resultant should blinside the middle-third. Thi. requires that the FSOT b. qreatllr tha:t

. '.••- 36 -

1.5 if the resultant of the resltinq fDrce~ 1. at the tvo-thirds pointof the base (a. measured froll the toe). The criteria 1n Section ).)(c)

should be revised •• outlined &hove (Exhibit F. SDK, Section J.J(c),page F-J 7).

11. submit st.ability and atrea. analyaes for the follov!nq structures,Vatana Oa., Devil" Canyon Arch Da. and thrust block abutment a, DevilCanyon Saddle d •• , the Vatana and Devil Canyon ••1n spill".y ,ate.tructu~es. and the Vatana and De.11 Canyon e.ergency apill"ay fuaeplugs. The analyse. should Jnclude1 .ample eo.puter input and output,nam•• of the computer proqra•• u ••d. and ... aUIlIIlary of the .ateri.lstrenqth assumptions u ••d in the analyses (Exhibit Pl.

Submit SDP' and PKP .tudie. for .taff revie".clude: ••mple computer input .nd output, n ••••used, .nd a .ummary of the aaaulllption. used in

The.e studi •••hould in­of the co.puter progra••

the anal y.e. (Exh ibi t F).

13. Borinqs are neces.ary along the Watana Oa. c.nterline and under tbedalll base upstream and down.trea. of the centerline to properly a •••• sthe suit.bility of the Watana .ite for the proposed da.. The sei •• icprofile. de.e:oped at the Watana sit. are inadequate to deterainefoundation condition. and top of rock ele.ations without borings. Theneed for these borinlJs wa. pointed ODt by Staff Geoloqist Barry Thoaasin a preliminary review of the licen.e application in the spring of1982. The deficiency va. aqain pointed out in Staff comments on thepre-filinlJ re.iew of the draft application in the January 11, 19B3letter on Page 65. The lack of boriDqa at the Wataaa site cast seriou.doubt. on the adequacy of the coat esti.ate (Exhibit F).

, 4. Clarify the di .crepancy concerfti ftq the upetre alii ahell .atarial to hused tor the Wa tana Dam. Paq. F-4-9 indicate. that fine. lea. than'/2 iftch v111 be remo.ed, bot 00 P&qe F-4-10, it 10 stated that theprocessed upstream • hell lila terial viII ha•• .0 .ore than ,., ot th•IIlAterial les. than JI B inch in size (Exhibit r. SOR) •

15. Provide additional iftforlllation on the proposed illlpervious borrow areato enable a deterlllination on the a.ailability of sufficient quantitiesof impervious lIlaterials .consi.tent vitb the deaiqn intent of the iaper­viou. zone. of the proposed Watana Oa. aDd Devil Canyon .addle dalll elllbank­Dlents. Thi. information shall include the type., rang_ of qradations,plasticity index, and other ph:.sical characteristic. of the aaterials tobe placed in the core of the embanklllent. The hiqhly pla.tic clay. thatexist in the propo.ed borrov pit sh.li be discu•• ed with respect totheir effect on the expectlld excavation aethods n ••dsd to control tb.blending of various gradations of lIlaterials that will b. encountered andany effecta this miqht ha"e aD 4evelopinq the quantities of imperViousmaterial required for the proposed .mbankaents (r:xhibit F, SOR).

- - ---'--'-'=--

• 0,.0

0.

- 37 -

'6. EXHIBIT G

Plate G6

cemEolete bounJ.ary for PSC 443 In Sec. 6, T.ll N., R. lE.

Delete reference to -ELEVATION 1500 MSL- from leqend.

plate G12

show location of trans.i •• lon lIne with reference toappropriate G ah•• t.

plate GJD

Identify the project boundary for the Xnlk Substation.(If the project ar••• are aliquot parta of the publicland survey, aimply deline.te the ar••• accurately.)

Plat.a GJO throuGh G37. and G19 through C52

Identify ••ridian (Sevard or Pairbanka1.

Plates G35 through ClB. and Gel through G45

Add corodlnat•• of the Al.ata State Plane Coordinate Syst.mat an91. pointe of the trans.i •• lon line.

Plate G38

Indicate purpose of the 180 acre project ar•• in Secs. 16,20 and 21, T. J1 N., R. :2 11'.

plates G38 and G39

Show loction of railroad acce.~ corridor with referenceto appropriate G .heet.

Plate G-40

correct Devil Canyon project boundary in Sec. 35, T. 32 x.,R. -4 E., (colllpare with G12), and Wat"ana project boundary inSec•• 3, 4, and 5, T. 31 X., R. 5 Ea, (compare with Gl3).

PlItte GS2

Identify the project boundary for the E_ter Subetation. (Ifit coincide_ with an approved Federal aurv.y, _imply identifythe survey .. )

Show the owne.cshil' status of the project land in SeCa 3, T. 1S., R. 2 W.

,. -. ....•.'

WEED FOR POWER

11_ EXHIBIT B

The follovinlJ item. areprefiling review.

keyed to the numberinlJ .ystem used in the

Item 17: Unreferenced Information ReDuirement., Exhibit B.

3. A description of t.he assumption. embedded 1D theabove methodologies specifically including butnot. Ii ai t. ed t.o:

A. The studi •• vhich vere ex,mined to det.ermined.1a.ticit.J•• of de.and.

B. The rational a for t.he part.icular valu••chaseD in the raDlJe of ela.t.icit.y value.ex.minad.

7. A 1Il0re complete explanation of t.he .et.h04010IJY u.edt.o generat.e t.he fut.ure elect.ricit.y pric •• u.ed in thedemand forecasta.

9. A sensit.ivity analysl. of explanat.ory variable. and1I0del a •• umptions JDcludiDIJ t.ho.e t.hat. drive theMAP aodel'. econoalc and population project.ions.

10. The hourly loads for the combined Susit"••arket.area for the most recent available year.

Item 18: Supple.ental Reports

1. Provide ... deacription of t.~e Al.ska Resident.ialCon.ervation Survey Audits and a descript.ion othov t.his aurvey h.s b.en uaed.

2. Provide t.he BNW Railhelt. End O.e survey and adescript.ion of hov it ha. been used.

The folloving it.em va. included ill Schedule A ot ths pretiling review.

Item 26: The clai. of no enerlJY reduction du' t.o ret.rofittingin the co••erciel/indu.tri~l .ector. should be veri­fied. Provide inior.ation on the ISER demand 1I0delsesullption. re9ardinIJ this claim.

Specifically information provided .hould attempt to verify the ••• unp­tions .ade regardin9 energy reduction due to retrOfitting in the cOIl.ercial/industrial sector••

. .... ,... .. -- 39 -

18. EXH IBIT D

The following items are keyed to the numbering system used 1n theprefl11nq revie",.

Itelol 2(c):

Itelll 5:

Item 31:

ProTide the annual coat for the Suaitna Project inactual dollars inclUding: Ca) escalation ot projectco.t~r (b) coat of capital inclUding finance chargesand Ie) inter.at during construction. Project annualcoata should be presented tor all the year. included1n the life cycle analysta.

Page 1-1'. Section 1.5, specifY allowance for fundauaad during construction (AFDC).

Table CoB and Do', atate intereat during constructionand provide copi •• of the retereDc•• , 1 •••• Tabl. 1,5 R.L. 521, etc.

Specifically, Cor ite•• 2(c), S, and J1 provide additional informationthat viII expaDd. on and clarify the treat.ent of AFDC throughout the appli­catioD.

Ite. 22: Page. 4-25 aDd 4-26. Section 4.7. Purni.h detail.of the ba.e period coal price e.ti.atiOD. of $1.66/_Btufor Beluga, and $1.75/IIlBtu for aealy. Shov detail. ofthe re.idually derived annual e.calatioD rate. of 2.6percent and 1.2 percent during the interval. 1982 to2000, and 2000 to 2040, re.pectively.

Specifically, provide detail. of the re.idually d.erived annual escalatioorates.

Item 26: paqe 4-31. Equal Environmental Coet. - Provide detail.on analy.ia.

Specifically, provide infor.ation to .upport the premi •• that the treat­ment of .nvironmental co.t u.ed in the Su.itna analya•• i. in fact conaerva­tion vith regard to evaluation of the Susitna project.

Item 19l Exhibit D

1. Pg. 1-6, .ection 1.1. So•• estimate••hould. be .ad.of po.aibla e.calation in nOllinal a. veil a. raalterllla for both direct and indirect co.t••

4. Pg. 4-15. Provide copi •• of all input data and alloutput reaults of the OGP5 run. and a brier explana­tion of all data entry tor each alternative _ca ••study discu ••ed in Section 4.7 and 4.8.

!'

•," "" ~

-< •

-. -•

- 40 -

~!ctc.,,~,-t~9",__-,E"x"h,'~bC'"tc-D lcontinued)

5 •

••

7.

g.

".

, 2.

.,. 4-17, Section ~.6. Provide Beluga coal coats•••ullling cOlll.Dlercl.1 deyeloplllent doe. not take place.Dl.cu~. the relative economics nt mining coal speci­fically tor electric pover generation, and ita likeli­hood under this acenario •

• 9. 4-18, Section 4.7. There 1. currently a disparitybetveen incremental, dome.tic market, and opportunity(ahadow) valu•• ot natural g •• price.. Quantify "the.ensitivity ot ualng current incremental prices, a.sumingesc_IeeJon v111 track world pric•• Bcd eventually equalthe lnternational value, 1n the OGP~ runs •

• ,_ 4-19, paragraph 2. It te•• ibl., ve would alao liketo see analyal. conducted in nominal terms (includingintlation. )

Pg. 4-JO. On IRR - what i. IRR tor next largest Alaskaproject (power or non-power)?

'g. 4-33. Section 4.7. In the single variable sensitivityanalysi., a 5' di.count rate resultad in a negative neteconomic benetit. Pertorm a multivariate .ensitivityanaly.i. using di.couat rate. in lieu ot capital coatsa. a key i.su., asaigned probabilitie., and discus.results. Conatruct probability tree•• i_iIar to Figure.D.17 and D.IR.

Pg. 4-35, paragraph 1. It might be helpful to model theinteractions. Section 4.9

•...

'''"t .... :-

•••

- 41

19. ADDITIONAL SUPPLEMENTAL REPORTS REQUIRED

,. B~ttelle Pacific Northweat Labor.tori_,itv and Price Foreca.t, May 1981.

Alaska Coal Future AvaJlabJl-

2. ISER. AI ••kaThe Railbeit.(Oct. 1981)

Economic Projections For Esti.atino Reouirements Pnr_Prepared for Rattelle Pacific Horthw.at Laboratori ••

3. Energy Probe, An Evaluation ot the ISER Elec~rlelty Demand Porec••~.July 1980.

•• Revi •• of the oniversity of AI ••ka Inatitute of Social and EconomicRes.arch Report -Electrical Consumptlnn for the Raitb.It Req!oDf Aprojection of Reauirement •• - VoodvardClyde Con.ult_nta, San Prllnclaco,1980.

5. Inatitute of Social an4 Economic Re ••arcb I. (15ER) model doculDlIntationreport 1/

6. ISER su.aary report on their econo~ic developaent projection 1/

2 O. FINANCIAL PLAN

As a 1II.ini.ua tinanci.l pl.n, plea •• pro... id. u. with lett.rs t'roa the.... riou. -R.ilhelt- utilitie. expr••• ing coraditions under which the, wouldbe intere.ted in purch.sing p.-.wer tro. Su.itna. We al.o need .oae type otexpres.ion fro-. the Al ••Je.n legi.l.ture which will proyid. ua v_ith •.t le.at• r •••onsh!e exp.ct.tion th.t the -expected- Stat••ppropri&.tion. viII h.forthcoming if the project i. approv.d and that n.c•••• ry .dditional fund.viII b. co••itt.d in the .....nt. of coat ov.rrun.. Al.o, pl •••• sl,1bait al.tter fro. an inv.st.ent b.nk.r (or groupa of bank.rs) of suffici.nt .is.and reputat.ion to h.ndl. t.he ••1. of re.enu. honda on • project :If t.his.agnit.ude, which .eta forth thei'r .iew of the conditiona required to ••r'etr.v.nu. honda. Th.ir lett..r should apecific.lly addr.as the proj.ct.iona ofexpected de.and and rev.nue which you .xp.ct u. to act upon in t.he f11in9(.!ot.h.r t.h. curr.nt project.iona on fU. or r.viaed proj.ctiona) and con'tai"• atate.ent concerning whether or not auch proj.ction. provide a ba.L. th.'twould .llow .&1. of revenue banda to fin.nce t.he project. Pinally, pl ••••provide ua witb a .t..tem.nt concerning vhat would happ.n if Susitna :.• con­.tructed. and an.rgy co.ts of .It.rn.ti..... option. do not ri.e a. you .lXpect,or if coat overruna occuX'. We-uld addi'tional Stat. fund. be appropriated, orwould con.umer. b. requ17 e4 to b ••r the burd.n of high coat .n.r9Y'