WSPC01296

• File Number: 8541
• Description: San Luis Valley Project
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 1/1/3000
• Title: San Luis Valley Project Closed Basin Division - 1970-1971 - A Report on Closed Basin Division, San Luis Valley Project, Colorado - House Document No. 91-369, 91st Congress, 2d Session
• Water Supply Pro - Doc Type: Report/Study

000215

101

Calend,ryear

CnwJit or debil at end 01
year (1,000 iitre.Jeel)
Credit Oebit

e,land,ryea,

Credit or debit al end of
yfiH (1.000 ,cfe.!eel}
Credit Debit

19.0...______........_.......____....... 19.3
19.L.._____.._____........ 127.0..._________
1942__.__________........... 0 0
1943.__..__________.........._....._... 28.7
1944...___________.________ 83.5............
1945...____________________ 69.4..........__
1946._____..._______._______ 31.3.........__.
19.7..__..__........___..____........... 18.8
1948..._____...____......... 130.1__________..
1949________.______________. 1(4.7 _.........__
1950....._______.__________. 25.0____________

1951.............____..__.. .9 .h......_._
1952.....__..........__.....______...... 153.3
195L__..___.___..______....____.....__ 111.4
Ht54_________....______....__...__...___ 231.9
19$5.........................__....____. 287.2
1956,..........__................_.____. 349.9
1957..____..........__...........__..... S06.2
1958.___...........__.._................ 492.4
1959._.......0.........__.__.._......... 513.0
1960_....____.......__.......__........_ 571.7
1961.........__....._....u..__..._..... 616.1

The reduction of the accrued credit in 1950 from 144,700 tlcre-feet
to 25,000 Hcre-feet includes the relinquishml.'nt of 60,000 ncre-feet of
Colorndo crpdit water to relieve the shortage of water in New :\Iexico
and Texas. From tilt' beginning of cnlendur .rear 1951 through 1961,
the uceruul of dt.bit nmounled to 651,100 nere-feet, which is equivalent
to UIl uvprnge UlIllllUI rate of about 59,200 acre-feet for the II-year
period.
Und('r the propost'd stage de,'cloPlllent of the snl\'uge urea, the
a\"('rllgt~ nlllllllll umoilllts of wlltt>r thut would beconw nvuilnble with the
('olllplt'lloll of t'uch stuge would be npproxirnutely us follows:

Salvaged walet in l/nitsoll,OOOacre.leet
Surlacewater Total
littleSprin~ Reduction in
Drain !low Cree evaporation Bystaaes Accumulated
0 0 0 Ial ,<I
0 0 0 U.7 34.'
,.. 0.1 U 123.6 '>s.'
0 0 U 27.5 I as. 9
0 0 0 10.5 '96.'

Ground
Staa' water

L__..n__...____...___ 10.1
200__0......._......... 24.7
J....................h 18.0
4.__......__...._____.. 23.2
5__00...0000....00__... 10.5

I Total reduced by 5.3 auumina deliveries 01 ulvliled water 10 Alamos.l Retl/a' would be initiated coincident with
completionolstaaeJ.

On the bnsis of the ubo\~e a\~erage annual amounts of water being
salvaged undt'r stage dc\~elopmellt, nn estimnte was ffi!UJ.C of the time
required to offset the ncerucd Rio Grande compact debit of Colorado
assuming (1) the an~rage annuul rate of debit ucrrulll to be 59,200
acre-feet llnd (2) stage 1 being in full operntion at the beginning of
cll.lendll.r yellr 1965. The estimllte is presented in the following
lnbulntion: -