19b

• Board Meeting Date: 1/23/2008
• Description: WSP Section - CWCB Litigation Account - Lysimeter Studies
• Board Meetings - Doc Type: Memo

I am now ~~ritin`~ t<t indiattc my a~~rccrttent ~~ith the reyucst ot•thc ~tatr 1?ngincer lur `ft?OO,Ut)U
in lunch li~otn the litigation t~und to support the operation ofthe t~~o lvsinuters at the Rocky
lord Fxpcrintent titation lur a ? cur period. l~ltis operation ~~ill he tut the purpose; <tt•
tatnductin~~ :t (~ttluracltt Vl'atcr Resctut'ccs Research Institute aud~• ttf•alfalta crop rtrnsumltti~c
use to detcnninc tht: appropriate crop coellicicnts fits use: c~ itlt the 1'cnntan-tilontie:th 1•: I
calculation as imltlcntcnted in the I I-l tludcl.
('olorado~s e:~perts hclir~c that usiu~_ the ;\ti('I~. ~tandanlii~d I'cnman-~lonticth uyuattun
c~ithout locally deaurminrd crop corl~fic:icnts kill o~rrestimatc crop consuntpti~~ usr, anti
thrrcli,rc oecrestinruc the: consumption ut'pumpcd ~~round ~~atur. lhi. r4.ult; in an
oecrstale:ntcnt oI~S[atclin~ dcplc;tiona anti recµtires ('olurado acli user': to u~crcontpcnsatc
Kansas. I hus, cstahlishin,.: tlte: appropriate rcti:rence: e:ropcocl7icie:nt is ~sscntia) to pre~cnun~,
an o~erstatentent ol~(~ulorado~s ohli~ations under the decree in Kansas. ~._ ('ulorado, attd is a
necessar} and appropriate: use ol~the }~uncl. ticparatc suhseyucnt research arty he undertaken to
dctt:rmine appropriate crop coet~tirie:nts lirr thr other major e~ops in the .~~rkansas ~ alley,
Statr Services Building • 1525 Sherman Street-7~'~ Floor • Detn•er, Colorado 80203
Phone (303) 8bb-3557 • FAX (303} 8b6-745
n hick may take another I t) to 15 years. l)urin_ the three years cue erred he the tintdin~;
rctlucsted lte:rcin. ctiirrt; ceill be made: to ohlain separate funding, liar that :uhlitional rc~rarch,
~chich should he tiuuicd by other inter~stcd cntitiea.
(>f'nutC. this c~pcnditurc nrty also assist in dei~ndin,~ and protrctim~ C'olurado's allot;ttions of
tearer in other intct;cutte: streams and ri~crs. ~lanv ut'(~ulnr,telo~s other intcraatc e.atcr
compacts arc lased on allorauons Ot hCilCtll;lal ronsumpti~e use:, and the use oCthc; f'ennrtn-
~lonteith e:cluatiun and crop cucl~tiricnts is bceomitt a cc idely rccot~nizcel ntethud to dctesnninc
conurmittic c use. I~Iterclitrc, this lvsimeter r~s~arch ~~ ill ahu he: uscfitl in dcte:mtining cc hcther
adjustment or additional rrsrarrh is needed in other tie cr hasins.
l-hank you tut your ronsidcratiun.
tiinccrcly,
.l I\ 1t'. til fllliRS
('olnrado Attantc:v Cicncral