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P_ <br />Applegate <br />Group, inc. <br />Water Resource Advisors for the West <br />MAY <br />01 I <br />April 28, 2011 . <br />A0 Mining and 000Y. <br />Mr. Tony Waldron <br />Division of Reclamation, Mining and Safety <br />1313 Sherman St, Room 215 <br />Denver; 'CO 80203 <br />i <br />Re: Response to DRMS Letter Pertaining to Mining Operations with Exposed Groundwater <br />Ml 74004 (Specification Aggregates Quarry); M1 15 (Lyons Pit); <br />708 Greeley West Pit); M1977098 (Sievers Pit);aYI1983013 (Latham-Burkett Pit); <br />.. ..?.. <br />M1998014Gypsum Ranch PitM2000113 (Mamm Creek Sand & Gravel); <br />M2001094 (Shaw Pit); M20.06.018 (Nort h 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 orIwill 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:,CaseNos. 90CW215,&91CW047-(WD 1) <br />• -Lyons Pit: Case Nos. 80CW443, 88CW049, 88CW074, 88CW075, and 93CW159 (WD 5) <br />Greeley West Pit: Case. No. 99CW23 Y(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 />0 ,-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. 01CW008 (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)>462-6611 • Fax (303) 452Y'1759 <br />Denver, Colorado 80234 www.applegategroup.com