WSP00301

• File Number: 8210.470
• Description: Pacific Southwest Interagency Committee
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 8/12/1960
• Author: L R Kuiper
• Title: Phreatophyte Subcommittee - Quarterly Report to the Phreatophyte Subcommittee PSIAC - August 1960
• Water Supply Pro - Doc Type: Report/Study

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QUARrEIll,Y E1B}'OI~Tl'O ~l:'l:n::. PI:lRtJl;'l'OPl"fflE SiJECOMMITl'EE
PACIFIC l300Tftr~"T :rNTER"AGEi~CY CmllMJ:l"l'EE R~nff'f'

by th~ /;UG,: 2: 196u
. STKL'E or C'(;Jl.OIDIDO ellt, wArM
G611SfllrATtlHI liARD

'l.'OO iaUJV0Y of pllr~at~llyte ~awth in th<a State of
Colorado has been c\'liflplde\.:l. 'l'hilil I1.IUJVey _iii conducted. by
river basin with tn<ll ",,,,d$tan~l'jl of the variouu (l{llunty f.l9"~nts
in the g3tate. Thb is <1n'!cott'M'l..blllance l\I'tU'Ve){ and th<Jf arOlit&
of the var:louiI p1:u:eatophy-ta~ ~ l!lllltimatod by the oount;y
eiCJerth reporl11'1(,'h '1'h.e &.Qo:t;:racy of t1ull Inl~Y and the re$u.l t-
i!.'\q i!U1dlysb is, of aoul'it". 111 function of the ,1U!lWROY f!)f
tlvltir aClr~a~ Gst!lIU'tt.e,lJ!"

III order to evdl1&t~ thelllonmmpUV4il Ul\I"l< of watar
by phreatophutetl .bt Colorlldo t1:l0 BlAM,V-Crictd.la fotmUla hr
consu.n;>tive us@ ... 4ppUIlld to thl) lIlor~ea roporled. 1:11.\11
total conlJWlIptiv11I U3<a Qf W<l,t.u" by F,hreatophytel$ in Colorado
amounts to 1.417.739acr~-fe*t per Y$ar.

A tuJ'tMlr aM1Jl'l;li.$ Wl!$)a JIlIlfja to ~vahtate tM lllaJtbm.m
potq,mt1a.l lUll ve.~. It WillJ ElSSWllIild that fOubliIti tuUon of su t
g:nua;; alYJ.lor hay and'llWil-&J.~ qnil'.lIlI oould he _de f'<)rdl plU:'ljla..
topllyt41S corusidered. 'l'lu.l\l M3~t!Grt b &bid. ttwy f,:'lIlillpl..rl;*i\l.y
arhitmry and hI.of eo.. UrlJllll, not .P:t:'<l,et. "i.cd. It .i. Iii W$~d only
au a v.QllJ,ole to nd1_~ ,ollllllUlle .sdv~ by liHJ.bGtitUUOl\ of
.v~ei:lll.tion vhieh ~ l>> benetidally W$ud". The PQt~mU<1l
advaCJe Which cO'll~ :r_U~.' ~r theJ:f~ lilU1Wllpu'Olllil !UlO\W'!:.1.;l
to 500,000 acre-feet per Y$lr.

It ahottld he noted 1:.hilt:

1. The totd (IOMUJl'lPi:hlll use fit;;fUre b not aCQurat<ll tl1!
the extent that '\fol~ dendty vade.tl from thQ
al$sUlllpticl.\lII.

2. Complete s\lh$ti tuUm'\. of ether [e-mail] }~'t
t~r$d .l;[e-mail]:tion Qf the beneficial UlS.$1$ of
.xistiug phreatophyt~s.

3. Complete aubutitut1Qfl IMy not bill ec::onmioally f~~-
ible.

TM OQncUudOM draw b_ the 1I>1.1n",y indiftte tMt
the l!Ul1ounts of Yater inv<lolV'llni a;($ l,dqnififtnt and eppN.:r to
justify further more d\WtaU~d 1ll'UV(i;Jl!l and st:wUe!\l ifl Ql;'dljl;f to
firm up the suvaqe potanUiU frw pQOldJ:..ll~ Cott.:i!(It1ve prQ~-
dur@a.

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cc; F. L. t.~b
R.. 1'1" GlldQ.:rsltikGn
Dr. Edwro L.. Clark

L. R. mXPER, Cll.a1~
l~l\~dophyte S\U:l(.1~ tt~e paIAe

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