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<br />RECEIVED <br />e <br />- AUG 0 5 X002 - <br />. __~ _ . <br />Division of Minerals alyd Geology <br />_: ... AGGREGATE <br />' ° August 2, 2002 <br />~,, _ _ INDUSTRIES:. - <br />Tom Schriener - -- <br />Division of Minerals and Geology <br />1313 Sherman Street, Rm.215 .- . - _ , <br />Denver, CO-80203 =- __ _ . - <br />12E:. Aggregate Industries - WCR, Inc: <br />__ _.. <br />1'datte Valle Pit- 89-I20 - <br />Y ~ ) - - <br />Groundwater Modeling Study <br />__ <br />Dear Tom: - <br />.. <br />Attached is the groundwater modeling study prepared by Martin and Wood; and - - - - <br />Applegate Group. The study was conducted to determine impacts to neighboring wells <br />from dewatering activities at the Platte Valley Mine. <br />The conclusions of the report are presented in pages 13 - 16 and conclude that lazgest <br />- contributing factor in performance and drawdown of nearby wells is the severe drought <br />we aze now experiencing. The report provides more detail on the modeling methods and <br />charts supporting this conclusion: . <br />Please share this report with the State Engineer's Office and call Phil Martin or me <br />(Martin & Woods - 303-526-2600) with questions or concerns regazdittg this study. <br />Thank you. <br />Sincerely, <br />Jamie W. Gaboriau <br />Manager of Environmental Affairs <br />Cc: Steve Brancucci, Golden West Farms, 1281 WC Rd., 27, Brighton, 80601 <br />Pat Wazd, VP & GM, Materials Division <br />Mike Refer, VP, Administrations & Public Affairs <br />Tom Maul, Operations Manager <br />Plant Manager, Platte Valley Operations <br />Aggregate Industries <br />Wes! Central Region, Inc <br />3605 South Teller Street <br />Lakewood, CO 80235 <br />Telephone: 303-985-1070 An Equal Opportunity Employer <br />