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COLORADO <br /> cv� oke , Division of Reclamation, <br /> Mining and Safety <br /> 0 Department of Natural Resources <br /> July 1, 2019 <br /> Mr.Jerald Schnabel <br /> Castle Concrete Aggregates <br /> 7250 Allegheny Drive <br /> Colorado Springs,CO 80203 <br /> Mr. Bruce Humphries <br /> RPM, Inc <br /> 25049 E.Alder Dr. <br /> Aurora,CO 80016 <br /> RE: Adequacy Review;Technical Revision (TR-05); Pueblo East, Permit No. M-1986-015 <br /> Dear Gentlemen, <br /> On June 26, 2019,the Division of Reclamation, Mining and Safety(Division) received a request for Technical <br /> Revision (TR-05)to change the frequency of groundwater level measurements at the Pueblo East mine, Permit No. <br /> M-1986-015. Please be advised that on July 26, 2019,the application for TR-05 may be deemed inadequate and <br /> denied unless the following adequacy item is addressed to the Division's satisfaction.Subsequent to receipt and <br /> review of the Operator's response to these items. Please respond to the adequacy items with a letter summarizing <br /> each response,to the numbered items below, in a cover letter titled "Adequacy Review Response TR-05, M-1986- <br /> 015". <br /> 1. Please provide up-to-date location maps for each groundwater monitoring well set. <br /> 2. Please indicate on the maps,where applicable,any wells that may have been abandoned and the year of <br /> abandonment. <br /> 3. Please provide a graph for each well monitored that summarizes all water level measurements collected <br /> for that location. <br /> 4. Please provide an explanation,on the graphs provide,for any major increases, decreases,or gaps in data <br /> that are known. <br /> 5. Please provide any relevant well abandonment reports. <br /> 6. Please provide additional details that describe what is meant by"as available"? <br /> 7. Please provide to the Division a schedule for reporting the groundwater level measurements that the <br /> Operator would be willing to commit to.Currently, it does not appear that there is a schedule for reporting <br /> these measurements to the Division. <br /> 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http:/lmimng.state.co.us <br /> Jared Polis.Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director <br />