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Rob Zuber <br />Page 2 <br />March 3, 2016 <br />Review of Surface Water Data <br /> <br />N/A <br /> <br />Review of Groundwater Data <br /> <br />The water levels measured in MW-23 and MW-65 are broadly consistent with the comments <br />made in the previous AHR review. The depth to water at each location has increased slightly, <br />which would be expected until the mine pool in the abandoned workings has risen to the point <br />where it is in equilibrium with groundwater in the surrounding formation. It is not possible to <br />determine the level of the mine pool directly, but it can be inferred from the available data that <br />equilibrium has not yet been reached. <br /> <br />Most water quality parameters in the samples taken at both wells were in line with historical <br />data. <br /> <br />It is worth noting that the levels of Nitrate (1.6 mg/L) and Phosphorus (0.23 mg/L) measured at <br />MW-23 in December were new maxima for that location. It suggests that there may be some <br />surface water influence here. <br /> <br />Conclusion <br /> <br />The 2014 AHR was submitted in accordance with the rules and the permit. The data contained in <br />the report shows no cause for concern, or significant divergence from previously observed <br />trends. <br /> <br />Violation CV-2013-002 was vacated by the Division on 7/30/2015; the water monitoring <br />program was subsequently terminated with TR-43, which was issued on 10/14/15. The 2015 <br />AHR will therefore mark the end of EFCI’s hydrologic monitoring and reporting obligation to the <br />Division. (Note however that the CDPS discharge points should continue to be monitored and <br />reported on until such time as the CDPS permit is terminated). <br /> <br /> <br /> <br /> <br /> <br />