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JMG1 S S S <br />Applegate <br />..Group, Inc. <br />Water Resource Advisors for the West <br />"MAY 0 9 I <br />April 28, 2011 <br />Diliisit3h <br />- , Whing Ind SI{y <br />Mr. Tony Waldron <br />Division of Reclamation, Mining and Safety <br />1313: Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Response to DRMS Letter Pertaining to Mining Operations with Exposed Groundwater <br />MI 974004 (Specification Aggregates Quarry); M1 15 (Lyons Prt <br />M1977081 (Greeley West Pit); 977098 (Sievers Pi ;,M1983013 (Latham-Burkett Pit) <br />M1998014'(Gypsum Ranch Pit); M2000113 (Mamm Creek Sand & Gravel); <br />M2001094 (Shaw Pit); M2006.018 (North Bank Resources) <br />Dear Tony: <br />On behalf of Lafarge West, Inc.- (Lafarge), I am writing to respond to the Division of Reclamation, <br />Mining, and Safety (DRMS) letter sent to. Lafarge on April, 30, .2010 regarding mining operations <br />with exposed groundwater. The 'specific, mining operations listed above currently expose <br />groundwater or will expose groundwater in the near future: These sites either currently have a water <br />court decreed plan for augmentation, or a,decreed augmentation plan actively being sought.. The <br />specific. augmentation plans for each site are listed . below; note that "WD" stands for "Water <br />Division" <br />• Spec=Agg Quarry: Case Nos. 90CW215 & 91CW047 (WD 1) <br />• Lyons Pit: Case Nos. 80CW443, 88CW049, 88CW074, 88CW075, and 93CW159 (WD 5) <br />• Greeley West Pit: Case. No. 99CW231 (WD 1) <br />o Note that Lafarge is not the operator/applicant of this augmentation plan. <br />Sievers Pit: Case No. 83CW65 (WD 5) <br />o Also, additional exposed groundwater not covered by the augmentation plan is <br />covered in a gravel pit SWSP originally requested from the DWR on March 30, 2009 <br />• Latham-Burkett Pit: Case No. 02CW123 (WD 5) <br />• Gypsum Ranch Pit: Case No. 02CW211 (WD 5)' <br />• Mamm Creek Sand & Gravel: Case No. 01 CW008 (WD 5) <br />Shaw Pit: Case No. 07CW257 (WD 1) <br />o Note that this augmentation. plan is not yet decreed; and Lafarge is not the <br />operator/applicant. <br />• North Bank Resources: Case No. 06CW020 (WD 5) <br />1499 West 120th Avenue; Suite 200 (303) 452-6611 • Fax (303) 452-2759 <br />Denver, Colorado 80234 www.applegategroup.com