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07/11/2000 13:57 970625913? [,hick=~LIA,INC PAGE 02 <br />AmerAlia Inc. <br />818 Taughmbaugh Blvd. <br />Rifle, Co. 91650 <br />July 10, 2000 <br />Mr. Jacnos Cagney <br />Bnreau of land Mmagem®t <br />73544 Hwy 64 <br />Meeker CO 81641 <br />Mr. D. Edwin Hogle <br />Director, Crrourrdwater Program <br />UIC hnplemtatlation Program <br />U.S. EPA <br />999 18'" Street, Suite S00 <br />Denver CO 80202 <br />Mt. Allen C. Sorenson <br />Reclamation Specialist <br />Divi~on of MinQals and Geology <br />1313 Sherman St., Room 215 <br />Denver CO 80203 <br />Subject: AmerAlia Rods Sdtool Project <br />Grand Water Monitoring Plan <br />Modification Request <br />MWD-1 and MWD•2 Monitoring Wells <br />Dear Sirs: <br />AmerAlia hav collected suffiaem data for the Dissolution Surface Aquifer monitor webs MWD-1 <br />and MWD-2 to prove the Dissolution Surfax Aquifer is not a tesourcc to be protected <br />(aadergrovnd solace of drinking water err USDW) beneath the Rock Sdtool Sodium Lease. <br />Irrsteed the poor quality water of the Dissolution Surface Aquifer poses a risk to the overlying <br />USDW aquifers if the protective ground water presstue gtadiont ware tevtasod by AmtsAlie's <br />solution mining activity sad water fivm the Dissohrtion Surface Agaifer were forced iMO these <br />overlying aquifers. In order to assure protection of USDWs, AmerAlia proposes to monitor and <br />protect the natural ptt;ssure gradient instead of conducting redundant water quality testing of the <br />MWD-1 and MWD-2 Monitoring Wells. <br />AmerAlia completed individual monitoring wells for our groandwattx tonitorng program in a <br />manner which isohtted the specific aquifer to be moaitorai by an individual well sod prevented <br />the commingling of aquifer waters. Wells were initially drilled short of the top of each ground <br />water monitoring interval, and dte wells were ca.9ed and cemerued sealing off eery overlying <br />aquifer camas before subsequent drilling ®d exposure of the target monitoring interval. <br />Without exception, in my experience in the Pieeamce Basin, wh® wells are drilled through <br />overlying aquifers to reach lower agaifers, the waters from the overlying aquifers arc proves to <br />flow downward in the open borehole. Cross flowing ground waters have corrupted much of the <br />deeper aquifer hydrologic data collected by the USOS and industry in the Piceance Benin over the <br />