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<br />. <br /> <br />. <br /> <br />. <br /> <br />0902 <br /> <br />JI'r. IIerberi Jr. !am" <br /> <br />JlIIlll&17 14, 19S3 <br /> <br />of 70ur and other agencies tbrogghvl1'ioll8 cOJB1ttMs' noW <br />work:I.Dg en tl:le ColGrado portion of theA-W-lt stllCJ;r.Th1. <br />eoo:N1Da:9d._ baa been .0 well accoIIIPl18hed thromgh the work <br />et the.e .1IIlll collllllittee. that I _ .u:re 70ur statf ia <br />tb01'O~ faJll.l:l.e with what veprobab~ 1dU propolle1& the' <br />UWer Purgawire vate1'llhed abO\l\t 70ur 1'riDidad Project. <br />Besides general 1IIprovoment in '98getal eover throup goed <br />rIDge _aeliant and reeeed1ng of thewor.t depletedueu <br />wbere tlIat ill reaaible, ve expecttoreco-.nd severallll8di_ <br />as.led deteuti_ reserwira, fol1l"'bec at present thi13Iri'lg, _ <br />8IIall tributaries above aall irr1gated areu. <br /> <br />'!'hue 1dll bewdr,r daDlrw with "con~d outlets at stre.. <br />bed level, designed to :retard sl1l'face runoff so it oan be <br />carried in the natural or 1mprovedclumDels without damag1q <br />agl'icllltural "ert;r. The outlets w:Ul discharge at the ' , <br />....Y'I_. rate which the ca"'''.lscan oU'1'7 S0 the;r will empt;r <br />autollat1.cal1;r in 36 to 72 ho1ll'8. '.rhus, there will be ne <br />lIl8~ureable CODSlllllption of water nor depleticm of vater npplie.. <br />These fOlJ1'ted detention dare will ha... a total eapac:!. t;r ot <br />cml;r 7,6()0 acre teet and will intercept surface runoff fro. <br />cml;r 13 percant of the total watershed area of the Purgatoire <br />River. '1'he;r ee desigaed to prevent damages to local irrigated <br />&reu fro. storms of so- to lClO-78&r f'requenc;r, bat obviol181;r <br />will have little if lIIl;r app1'$ciable effect on aam stem tlooda <br />at the 81"" of 70l1l' Tr1nidad Project. <br /> <br />It see_ to IIl8 that the act1."fi ties of soU conservationdis- <br />triots in the Purgatoire River Buin abo... frinidad are wortll. <br />menti~g. Pro gren 1& SO_. &reu has bed IIQre pNDOlUl.Ced <br />~ in' others bllt these local anits of the state gove:mment, <br />organized and llI8l1aged by loCal tarll8rB and ranchers, are <br />beg.1n..1l'\g to make he~ in the control of eresion and <br />sedillsnt. While their vatersbedprog1"8IIlll ~ not mater1a1l.;r <br />recluce the' floods for which 70ur major structlU'es IIIllIt be <br />des1gaed, the;r will 1& time IIIlterl:all;y reduce the sedimnt <br />t1Mch now reaches 'l'rinidsd and thus lengthen the l1IIetlll lire <br />of this preject.Don't 70u think attention should be called <br />tel this lecalactivit1'l <br /> <br />As 7011 requested, we are retarning 1he draft cop;r of ;roar <br />frinidad report and attachments. Whenever this report i. <br /> <br />APPENDIX G <br />Exhibit No. 7 <br />Page 2_of 3 <br /> <br />0," "~-'_~ <br /> <br /> <br />. <br />