WSP01943

• File Number: 8054
• Description: Water Salvage
• State: CO
• Basin: Statewide
• Date: 8/10/1956
• Author: R M Gildersleeve
• Title: Salvage Attributable to Transmountain Diversions at Selected Stations on the Upper Colorado River Above Cameo - Colorado
• Water Supply Pro - Doc Type: Report/Study

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For the CrIl'ly years of tre pel':i.oc] otutli€ld, \"hcon trru,olTl)ul1tain diwJl'fdono ,1"1'e

sf,Jall, the cClr'relati.on of' Inqex Supply to Outf'la,", proved to O€l a strni gj1t line
r81Rt:lonship (the 13a~" ti.ne), FOI' 111.ter periods the plotted vahws of Index

Supp~' vs. OutfImr, ..1111u"e tre autf'loH ie, the r€lcorcled discharee at the outflo~1

station plus divel'oions, shn\ld be to the; r:i.(;ht of' the Dasr: Lint' by, the runount

of the salvage.

'fiIO cellflral mathods of dr,terTII:llii.ne this salV1l~e ,181'0 uoecl. The first,

Has to comp,u'e arnuaJ. 01' montl,ly vnlu"" of Indc'x Supply v:;. Colorado IUvl!I' aL

the Outflml Station for periods Hhen tr"lismountain diversions ~lere apprcci.nl,ly

different, The relative gaLn of the Ou.Lflow for periods of laJ'eer diverf.iiorm

OViOl' that of SMaller diwrsion .Ihen the Index Supply was the same, would be a

measure. of the salvage, This method l;as used in Studies A, B, C, I, and n.

110nthly va]ues did rot give signl.fi.cant rNJuJ.ts but average gains in salvage
for certain categories of depletion could be evaluated b,y averaging methods.

The second mat to d of evaluating salvage was to find the dev.i.ation

of the mass curve of Index Supply vs. OutflO1; discharge from a strai@lt line

projected tlrCUgJl the values for ear~ year" of the peri.od studied, .'hen diver-

diversions were quite small.

Camparis on of resul t.s of the tHO methods used follows: