2016-10-20_PERMIT FILE - C1981035A (4)

Home Browse Search

WATER MONITORING Groundwater monitoring has been conducted since 2004 at three baseline alluvial wells, "Wiltse Well Monitoring Station", "Up-Gradient Monitoring Station", and "Down-Gradient Monitoring Station". Surface water monitoring has been conducted at "Hay Gulch Ditch, Downgradient Monitoring Station". Existing monitoring stations will continue to be sampled on a quarterly basis. TR-26 proposes the addition of an additional Hay Gulch Ditch monitoring station up- gradient from the King I mine, "Hay Gulch Ditch, Up-gradient Monitoring Station" at the confluence of Hay Gulch and Roberts Canyon. Four bedrock monitoring well "clusters" (3 wells each in the Cliffhouse Formation, "A" coal seam into the interburden between the "A" 8s "B" coal seams) are also proposed (MW-01 thru MW- 04). One additional alluvial monitoring station is proposed up-gradient from the King I mine site "King I Up-gradient Monitoring Station" (MW-HGA-4). All water monitoring locations are shown on Maps King II-006A and King 11-012. All sampling locations will continue to be sampled until the requirement is waived by the Division of Reclamation, Mining 8, Safety. Monitoring parameters will be split into a groundwater group (GW), a surface water group (SW), and a springs & seeps group (S&,S). GCC Energy proposes a near consistent analytical suite of parameters across groundwater, surface water and spring and seep monitoring locations in order to best inter-relate surface water and alluvial and bedrock groundwater for four quarters of baseline data collection. However, there are a few exceptions: • Total Suspended Solids (TSS), Oil and Grease and dissolved oxygen is only for surface water samples, but specifically exclusive of spring and seep samples. This is consistent with the CDRMS Guidelines. • Sodium Adsorption Ratio analysis only for surface water samples. This is consistent with CDRMS Guidelines. • Ammonia analysis as one-time only via field kit, sampling at all locations only to establish absence, to be conducted in the fall season (2016Q4). • Phosphate analysis as one-time only, sampling at all locations only to establish absence, to be conducted in the fall season (2016Q4). The proposed baseline water quality monitoring parameters have been divided into three appropriate suites to be distinguished by the analytical laboratory and field sampling personnel and presented as Tables 1-3. GCC Energy, LLC King I Mine Section 2.05.6 Page 6 October 13, 2016 (TR-26 AR#2)