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<br />I,; '" C Lu -- , <br />...,,)" L.. . -,- <br /> <br />,.,- <br />021 I <br /> <br />P. o. !lox 17107, Denver, Colorado 80217 <br /> <br />Jilnuary 13, 1976 <br /> <br />r~. E. F. Sullivan <br />Acting,Co~issioner <br />USOl - Bureau cf'Reclamation <br />Washington. D.C. 20240 <br /> <br />-, <br /> <br />RE: 746-500 <br /> <br />Dear Mr. Sullivan: <br /> <br />We have reviewed the draft envirormentlll statelX'nt for the fl.aITOWS Unit, <br />Soutb Platte DIvision, Pict-Sloan Missouri Bastn Progra~. <br /> <br />We have t.lJe follOWing COQ!ll!flts: <br /> <br />1. On p~ge a7. SectIon III - "the prairie terrace t,heatgrllss COImlUDity <br />(Agropyron repens)" appears to identify the WI'OIl!J species of agropyron <br />as the dominant. ~ believe Agropyron Oasystachyum (thickspfke wheat- <br />grass) or Agropyron sl!llthtl (ilestern tiheatsrass) would dominate these <br />colllBUllities. Agropyron repens (Qaacl:.grass) is not indigenous to the <br />prairie terraces. <br /> <br />" <br /> <br />2. Chapter IV. En,lrolllllelltal lqlacts. <br /> <br />lie be1feve the impacts created by tile completed project are adequately <br />described. Hmlever. the impacts occurr1ng during the seren-year period <br />of construction should be addressed in IDJre detan. <br /> <br />Oft page IV-ll IJatcr Quality - DO mention is made of the effeets on water <br />quality by increased erosion froll the construction site. ' <br /> <br />em page IV-lS Constroct1on Area - it is stat...<>d t!li1t stream turbidity <br />win increase due to t/~ter erosion and that wind erosion trlll increase <br />dust in the air. tie believe this section could be expilflded to tnclude <br />est1_tes of actual son losses duT1ng '\IaT1ous stages of construction <br />and the il:lp&ct of this son -displacement on the various segments of the <br />envi roJllleJlt. <br /> <br />On page IV-3l \J11dl1fe - no mention is IlIlIde of the specific impacts to <br />wildlife during the seven-year construction period. tie note that a <br />general statement Is made tinder Aesthetics (IV-62) that wUd1ffe within <br /> <br />."":-":-':::;"- <br /> <br />.: -.- -,::'-~-' <br />.;.:;.~,~~--:;--~-- ". <br /> <br />, <br /> <br />--------.-.. . <br /> <br />..;-._-:..~--- <br /> <br />--_..'-. <br /> <br />c <br /> <br />-=,---' <br /> <br />-.-< -.-- <br /> <br />- .",."-:--"..- <br />---::...-'-. . <br /> <br />.. <br /> <br />,""..,... <br />-.,...-",-.. . <br /> <br />'> <br />