2014-12-19_REPORT - C1981014 (2)

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June 2000 s Energy Fuels Coal, Inc. 1999 Annual Hydrology Report Monitoring data from Magpie Creek downstream location show increasing levels of calcium, sulfate, magnesium, iron and total suspended solids downstream as compared to the upstream location. The quality data indicate that all other parameters were similar at the downstream and upstream monitoring locations. These data indicate no significant impacts due to mining. Monitoring data for both upstream and downstream locations is available for, at most, only 2 1/2 years through the period of this report. Additional monitoring will allow better comparison of data and assessment of potential impacts from mining. The approved surface water monitoring program effectively monitors the impacts of mining operations on the surface water system adjacent to the Southfield Mine and loadout site. Monitoring of two sites on Newlin, Magpie, and Oak Creeks will provide useful data concerning potential mining impacts. Monitoring data documented through the period of this report indicate no significant impacts to surface water as a result of mining operations. Field and laboratory data collected from monitor wells MW -8, MW -10, MW -16, MW -23, and MW-65 are summarized as described below. All data was collected in compliance with the approved monitoring program. Water quality data for wells 10, 16, 23 and 65 are shown on Tables 5, 6, 7 and 8, respectively. Water quality samples are not obtained at MW-8 as described in the permit application. As mentioned in previous AHR's, MW -10 was mined - through. Observations during the period of this report show the well is dry and draining into the mine. A review of monitoring data for each well through the period of this report indicate that water quality data are comparable to previous reporting periods. Water quality in MW -16 showed moderate increases in conductivity, calcium, TDS, chloride, magnesium, and sulfate compared to average previous values. These changes may be a result of the large change in well levels observed during the reporting period, described below. The water quality data at MW -23 indicate consistent parameters for the reporting period as compared with previous reporting periods. At MW-65, the data water quality for the reporting period show a moderate increase in the amount of nitrogen ammonia. All other parameters remained consistent with average previous values. Water quality data at the monitoring wells indicate increased values in some parameters as described above. Additional monitoring will show if any of these changes are sustained trends. Water quality in all wells remains within acceptable ranges for material damage criteria.