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Climax Mine Water Quality Monitoring Plan Evaluation - 2016 <br /> Sampling Locations <br /> Groundwater Sample Locations: ARwell, ARK-MW-001 D, ARK-MW-002S, ARK-MW- <br /> 002D, EVMW-1 S, EVMW-1 D, EVMW-2, EVMW-3S, <br /> EVMW-3D, EV-MW-004, EVS-1, EVS-2, EVS-3, GW#1, <br /> TM-MW-001 D, GW#2, TM-MW-002D <br /> Internal Surface Water Sample <br /> Locations: CC-SW1, EI-SW1 <br /> Surface Water Sample Locations-Arkansas #1, Arkansas #2, Al, BI, EPR Outlet <br /> During 2016 water quality samples were successfully collected quarterly from the above <br /> sample locations with the exception of the following: <br /> First Quarter- <br /> - EVS-1, EVS-2, EVS-3, CC-SW1, EI-SW1, Arkansas #1, Arkansas #2 — Inaccessible <br /> Third Quarter- <br /> - EVS-1 - Dry <br /> Fourth Quarter: <br /> - EVS-1 - Dry <br /> Tabulated monitoring data for 2016 are attached. An evaluation of 2016 monitoring results <br /> are discussed below. <br /> Discussion of Results: POC Wells <br /> The pH at GW#2 in the Tenmile Creek Watershed was measured at just under the lower <br /> value of the NPL range during the third quarter. Climax notified DRMS and resampled the <br /> well. The results of the resample showed the pH at GW#2 was within the NPL range. For <br /> all other NPLs, results were within acceptable limits. <br /> 1 <br />