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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />COLORADO <br />DIVISION O F <br />Phone: (303) 866 -3567 <br />RECLAMATION <br />FAX: (303) 832 -8106 <br />MINING <br />SAFETY <br />July 1, 2013 <br />John W. <br />Gove oHickenlooper <br />Mike King <br />Nick Michael Executive Director <br />Union Milling Company, LLC <br />Loretta E. Pineda <br />P.O. Box 620490 Director <br />Littleton, CO 80162 <br />Re: Leadville Mill; DRMS File No. M -1990 -057; Amendment No. 1 — Adequacy <br />Review No. 2 <br />Dear Mr. Michael, <br />The Division has identified several other comments and questions that must be addressed prior to <br />the Division's decision due date. Please be advised that if you are unable to satisfactorily <br />address any concerns identified in this review before the decision date, it will be your <br />responsibility to request an extension of the review period. If there are outstanding issues <br />that have not been adequately addressed prior to the end of the review period, and no <br />extension has been requested, the Division will deny this application. <br />6.4.21 Exhibit U — Designated Mining Operation Environmental Protection Plan <br />1. The Division was unable to locate a copy of the Operator's current surface and ground water <br />sampling plan in the permit file. As required by Rule 6.4.21(12), please provide the Division <br />with a Standard Operating Procedure (SOP) for sampling surface and ground water. The SOP <br />should include the following: <br />a) Equipment needed, including calibration procedures and decontamination methods if <br />required. <br />b) Sample collection methods, including well purging, sample labeling and data recording. <br />c) Filtering methods. <br />d) QA/QC Plan. <br />e) Field measurement methods. <br />f) Sample delivery, including chain of custody forms and holding times. <br />g) Reporting analytical results to the Division. <br />h) Complete list of analytes to be sampled. <br />Sample suites should include the appropriate number of duplicates and blanks; the Division <br />will require at least one blind duplicate per sample event. It is also recommended that <br />additional types of blanks, such as field blanks be included. <br />Office of Office of <br />J . - -' ^ - -.- ---.]__ n......... - /`.......i i.......:.... - n........... A..- .:.........11.......:.... kA ;--- <br />