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Greg Lewicki .1nc1 Associates, PLL(' <br /> ;,,,- ,i 1..,„, . ( ,,., , 01.,, ,-21)18-12 S' I 1 0%, 1 311`1 4(v 1,')34 <br /> I ittI tori, ( () tiOI' I ni.iii: info.o ICoi.Li.bi, <br /> March 12, 2020 RECEIVE <br /> 113$ustin Czapla MAR 2 4 2020 <br /> Colorado Department of Natural Resources <br /> Division of Reclamation, Mining & Safety DIVISIONOFRECWv1A'IoN <br /> 1313 Sherman Street, Room 215 MINING ANDSAFEry <br /> Denver, CO 80203 <br /> 303-866-3567 <br /> Delivered Via Email and Fedex Hard Copy <br /> RE: Pride fj101prie2 M. e, Colorado Stone Quarries, M-1999-058._, <br /> Technical Revision - 6 Modify Fuel Location at the Pride of America Mine, <br /> equacy Response <br /> Dear Mr. Czapla: <br /> Please see the following responses to the adequacy review comments set forth in your <br /> letter to me dated March 2, 2020. <br /> 1. In order to ensure ongoing protection of nearby Yule Creek, please commit to <br /> conducting monthly water sampling at the sump located downgradient from the fuel <br /> storage area, adjacent to Yule Creek. Samples should be analyzed for diesel and <br /> BTEX constituents. The water quality sampling results shall be submitted to the <br /> Division each year as an attachment to the annual report. If elevated levels are <br /> noted in any of the monthly samples the Division shall be notified immediately in <br /> order to determine an appropriate course of action for mitigation. <br /> Response No. 1. Water sampling of the sump will be conducted in accordance with CSQ's <br /> Groundwater Sampling & Analysis Plan, dated March 12, 2020, and prepared by HRL <br /> Compliance Solutions, Inc. (HRL) (the Groundwater Plan). A copy is enclosed. As noted <br /> in the Groundwater Plan, samples will be analyzed for diesel and BTEX constituents. <br /> Monthly sampling of the sump groundwater monitoring well is planned for a 12-month period <br /> (January—December 2020)with the three (3) additional groundwater wells being sampled <br /> monthly for the remainder of 2020 once they are installed and developed. Sampling results will <br /> be submitted to the Division as an attachment to the annual report. The most recent <br /> sampling results dated March 6, 2020 are enclosed. In the event concentrations of diesel or <br /> BTEX constituents exceed applicable CDPHE thresholds, the Division will be promptly <br /> notified so that CSQ and its consultants and the Division can discuss the sampling results <br />