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eu~ oy. .Ire ~ous+lo unwr, ln~., uuovo<ou11, <br />.. - -: 'i <br />r~~: STATE <br />1CE OF THE STATE ENGINEER <br />D+~6i~n +~{ b4;1te. ReiOtltiCS <br />Ucpartmrnl rd Natural HeiOUriet <br />1 ] 13 Snerman'_[rLC4 Rixlm R i 2! <br />D<nwc Culoradn 9iRni <br />Phi;n~!111;7 flnn--?St;l <br />r,1k 13~3i BGG-]>A~ ApC(I 29, 2003 <br />Richard T. Raines <br />Applegate Group, Inc. <br />1499 West 120`" Avenue, Suite 200 <br />Denver, CO 80234-2728 <br />Re: Substitute Water Supply Plan, Riverbend Pit (M-00-[)iii) <br />Section 19, Township 1 North, Range 66 West, 6th W.M. <br />Water Division 1, Water District 2, Weld County <br />Dear Mr. Raines: <br />~"O~_~~i <br />"'->'a <br />'r_ <br />{t`~::u,t` , <br />9ili Owl-q <br />UpvP•n,n <br />Lrcg ~. «'dkhrr <br />t.9 ~.I~r,• 1)NntiN <br />n~~f p iim{rsun. PE <br />4aV EntinM/ <br />This letter is in response to your application for a substitute water supply plan far the <br />Riverbend Pit in accordance with Section §37-90-137(11}, C.R.,S. The re~auired fee of $1,343 for <br />the substitute water supply plan has been submitted. <br />The anticipated total net depletion for this plan is 32.8 acre-feet per year. Of this total, 72 <br />acre-feet is due to evaporation from 2.5 acres of exposed water surface, 23.5 acre-feet is from <br />minirg of 800,000 tons per year of aggregate, and 2 acre-feet is from wafer used for dust <br />suppression. You have provided a monthly breakdown of the annual depletions totaling 32.8 <br />acre-feet. <br />According to the information submitted, no water surface acreage was exposed within <br />mining boundary prior o January 1, 1981. No phreatophyte credit has been applied to this plan. <br />The proposed source of replacement for this pit i5 fully consumable Metro Wastewater <br />Treatment Plant (WWTPj effluent from a lease with the Consolidated Mulual Wafer Company <br />(GMW C) for April through September and fully consumable water from the City of Greeley for <br />Octooe; tFtrough March. The Ivtetro WWTP is located approx¢~iately 16 miles upstream of this <br />aggregate operation. A 0.5 percent transit loss per mile (8.0 plsrcent overall loss) has been <br />accounted for in the replacement schedule. The month{y depletions and replacement <br />requirements are found on the attached table no. 3. <br />The final reclamation plan for the Riverbend Pit calls for Z lined lakes. This site is currently <br />being dewatered, however, if the dewaterting of the site is discontinued, the pit would fill creating <br />additioral depletions to the stream system due to increased evaporation. To assure that this <br />depletion to the river does not occur, a bond for $743,000 through DMG bx lining of the lakes has <br />been obtained. Therefore, if dewatering is discontinued This bond can finance the completion of the <br />lining of the pit, thus preventing depletions to the stream systern. <br />1'dUV-4-V'a y:oeHni; race ar)e <br />OF C~OLOI~ADO <br />