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September 2002 5 Energy Fuels Coal, lnc. 2001 Annual Hydrology Report 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. Ground Water Field and laboratory data collected from monitor wells MW-8, MW-10. MW-16, MW-23, and MW-b5 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 aze 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 cavity. A review of monitoring data for each well through the period of this report indicate that _. water quality data aze comparable_toprevious reporting periods. ,,,_ Water quality in MW-16 showed moderate increases in conductivity, TDS, and sulfate compared to average previous values. These changes may be a result of the fluctuations in well levels observed during. the 1999 and 2000 reporting periods. The water quality data at MW-23 show a slight increase in the amount of conductivity, TDS, bicarbonate, nitrogen, and sodium as compared to previous periods. 3.:-- ~~At MW-65;" the data-water c}ual%ty for the reporttrig penod~show a°moderate rncrease-iri the ~~ _: ". _ .. _ '" ~amotint of nitrogen ammonia consisbenYwtth previous'repoittng'periods ~Ail~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 aze sustained trends. Water quality in all wells remains within acceptable ranges for material damage criteria. Well levels for all monitoring wells are summarized on Table 4, and water level data aze presented graphically for the five monitor wells on Figures 3, 4, 5, 6, and 7. A review of water levels data shows steadily declining water levels at MW-23 and MW-16. At MW-16, the well was dry at the end of the reporting period. Stable levels persisted at MW-65.