2014-10-01_REPORT - C1982056 - Laserfiche WebLink

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1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 I 1876 1 Segment 13b, Foidel Creek Segment 13a, Trout Creek to Fish Creek Typical flow patterns were exhibited in Foidel Creek at Site 008, 800, and 14, located immediately downstream and upstream from the Foidel Creek Mine respectively. Foidel Creek at Site 008 is fed by surface runoff and coal spoil leachate springs on the historical Eckman Park /Energy Fuels coal mining area. Water quality parameters at these sites were within previously established ranges in 2013. The Wadge overburden and the Twentymile Sandstone are the two aquifers most likely to be affected by mining. If the workings are developed to the maximum extent approved, the monitoring locations of both formations will be upgradiant from mine workings. The following wells serve as the Foidel Creek Mine's ground water points of compliance: 97013TM ( Twentymile Sandstone), 008 -77 -58 ( Wadge overburden), 008 -AU3 (Fish Creek alluvium), 008 - AT-1 (Trout Creek alluvium), and 008 -AV -2 (Foidel Creek alluvium.) The mine's annual hydrology reports contain long -term data from these wells. These data show the 11. Sampling frequency Exhibit 14 of CDRMS Foidel Creek mine is in compliance with the Basic Standards at surface water sites mining permit C -82 -056 for Ground Water at the points of compliance, with the exception of the following: The ground water point of compliance well for the Trout Creek alluvium, 008 -AT -1, was identified as being destroyed in November of 2012. As such, no data has been collected for the Trout Creek alluvium since April of 2012. A determination of compliance since April 2012 cannot be made due to a failure to collect and submit the required data. The Division understands that 008 -AT -1 was re- established in the summer of 2014 and monthly water monitoring has been ongoing since the re- establishment of the well. 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 I 1876 1