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<br /> <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />Jared S. Polis, Governor | Dan Gibbs, Executive Director | Virginia Brannon, Director <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br /> <br /> <br /> <br /> <br /> <br /> <br />13 February 2019 <br /> <br />Miranda Kawcak <br />Peabody Energy, LLC <br />29515 Routt County Road #27 <br />Oak Creek, CO 80467 <br /> <br /> <br /> <br /> <br />RE: Seneca IIW Mine (Permit No. C-1982057) <br />2017 Annual Hydrology Review <br /> <br /> <br /> <br /> <br />Dear Ms. Kawcak, <br /> <br />The Division has completed its review of the abov e referenced report having received <br />the hard copy version of the report on 5 April 2018. <br /> <br />Annual Hydrology Report <br /> <br />The Division finds the 2017 Annual Hydrology Report in compliance of the <br />requirements identified in the attached memo. The report fulfills the 2017 <br />requirement to file an annual hydrology report. It is noted that through the <br />Division’s approval Sediment Pond Capacity Surveys were reduced through Minor Revision <br />(MR) 83, in 2016 and there was a reduction in the Hydrologic Monitoring Plan in 2016 via <br />Technical Revision (TR) 82. TR69 approved in 2010 by the division reduced the parameters <br />list to be analyzed. <br /> <br />The Division has the following comments: <br />The Division located the Water Quality Report for Point of Compliance YSAL3 in Appendix 3. However, the Division did not find in Appendix 3 the Water Quality Report for Point of Compliance Well SAGL70. <br /> <br />1. Because Maps A3, A4 and A5 are illegible at the scale/page size provided, the information to be gleaned from the maps is unavailable in the report. <br />2. It appears that site WTC201 was only monitored for TDS. Please submit the <br />additional data associated with this monitoring location.