WSPC01522

• File Number: 8283.200
• Description: Colorado River Basin-Colorado River Computer Models-Colorado River Decision Support System
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 4/1/1996
• Title: Boyle Contracts-Original-White River Basin Enhancement-Draft
• Water Supply Pro - Doc Type: Operating Principles/Plan

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APP.-30-1996 12:31
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Deliverables:
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FROM R IUERS I I'E TECHNOLOGY. IN!:

TO

13038664474555

P.ll

State: A memoran urn cIocumenting lhe modification of ST A TEMOD input mes to
repre,sent upstream d downstream tenninus and the eompnrison of the l'hMe ill and
Phase II mos.
I. RTiWR: ST A 0 input files reflecting instream reaches modeled using
I nI'~lr/'!am ~nd down !ream tenninus.
I. RTiWR: Two big icture plots comparing the average annual diversions for the
Pha~p. III ~nd the l' ase II model runs.

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2.12. I Bal;C flow generarron

Objcctive: For the While ver Ba.~in. generate the hao;e flow hydrology after the inclusion of
aggre~ated Irrigation structure reservoirs/stock ponds. and instream tlow~, II is ",~sl1med for
bUdgeting purposes lhat most the aggregated structures will be imposed on the existong hao;e
now +twork. However, It Is e .t1mated that the number Of base flow points may increa~ hut will
Dol cxceed 10 additional ba.~en w points. This task Is to be accomplished through the followIng
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specific wUI1o. lasks;
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ApprJaeh:
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i 1, RTiWR: Dctcrmin tributary =. eSlimate avera~ =al precipitation, and the
i precipitation weigh d ll1'l:1l for each new base flow point (not 10 eltc;eed 10). These
! areas will be doubt plnnimetcrcd by hand rather thllll using GIS delineation.
i 2. RTiWR: For each ew b3!:e now point being lidded to the network. check to sec if a
i significant stream fl w gage (5 years within study period) exists within the tributary
and add the gage to he network. This includes filling missing data at the gage
location if required.
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l'~ RTiWW: Revise t
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! pOints, May 1'P.t}ni
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reql1ire.d ST ATEMOD input files to include the new base flow
mOOttication to existing Phase II base flow points.
aRC flow~ ann vlsnally check: for negative, base flow values.

OJ&o..'Y.

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RTlWR: Review b se now results wilh Ihe Stale in a, !llP.etine, 'I "'1"Tmi"" the '~
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RTIWR: Impleme lhe modifications discussed in the re~lew meeting and
"'IIC:llcralc: I.>~ no s al a 1".,,\ or CrCUIl nOllU exeeed 8 hours. If modifications [0
base flows are !'Cqu' cd beyond 8 hOUlS. a dllUlXC: oldcr.will!;c n'qucsLed..
State: Document th base flow network, any additional sl1'ealDflo~ gages alld
associated data fi . g, ond the bose flows in a 1.2 puge memorandum.
RTiWR: Review morandum.
State: Incorporate nsulbnt comments.

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