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bmk <br />Lr / <br />OFFICE OF THE STATE ENGINEER <br />Division of Water Resources <br />Department of Natural Resources <br />1313 Sherman Street, Room 818 <br />Derner, Colorado 80203 <br />Phone D03) 866-3581 <br />FAX 1303) 866-3589 <br />www.watecstate.co.us <br />STATE OF COLORADO <br />April 25, 2006 <br />Michelle Austin, Water Reso~e Specialist <br />Applegate Group, Inc. <br />1499 W. 120th Avenue, Suite 200 <br />Denver, CO 80234-2759 <br />RECEIVED h~ ~ `°~°*~ <br />~R z a zoos '•O~' <br />~ tB76 ~ <br />Division of Minerals and Geology aili t3wem <br />C.ovemor <br />Resell Georg <br />Executive Director <br />Hal D. Simpson, P.E. <br />State Engineer <br />RE: Rich Pit Substitute Water Supply y Plan, M-85-218 <br />SEY, Sec. 34, T20S, R63W, 6 ' P.M. <br />NWYa Sec. 2, T21 S, R63W, 6a' P.M. <br />Well Permit no. 45995-F <br />Water Division 2, Water District 14 <br />Expiration Date: March 31, 2007 <br />Dear Ms. Austin: <br />We have received your March 7, 2006 request for renewal and amendment of the Rich <br />Pit substitute water supply plan on behalf of Lafarge West, Inc. The required $217 fee has <br />been paid. <br />PLAN OPERATION <br />The Rich Pit has been inactive since 2001 and will remain inactive during this plan year. <br />Ponds created from previous mining activities under this plan cause stream depletions during <br />the inactive period due to evaporation. This renewal covers pond evaporation from the Active <br />Pit (16.4 exposed acres), the Unused Wash Pond (0.5 acres), and the Old Aggregate Sales <br />Area (0.6 acres). You report that the Inactive Pit does not contain any water and will not <br />generate depletions. <br />Description <br />Inactive Pit <br />Active Pit <br />Old Aggregate Sales Area <br />Unused Wash Pond <br />DEPLETIONS <br />IDENT No. Location <br />1406466 NW1/4 Sec. 2 <br />1406470 SE1/4 Sec. 34 <br />1406469 NE1/4 Sec. 33 <br />1406011 SE1/4 Sec. 33 <br />During the April 1, 2006 through March 31, 2007 plan year, the site excavations may <br />expose a maximum total of 17.5 acres of ground water. You have submitted an analysis that <br />shows the calculated evaporation, effective precipitation, and resultant net replacement <br />obligation in Tables 1 and Z. (attached). You have also performed a depletion analysis based <br />upon the net replacement obligation and the aquifer characteristics to show the lagged depletion <br />