Laserfiche WebLink
surface facilities and the bulkhead seal in the decline. The monitoring well will consist of <br />threaded 2-inch polyvinylchloride {PVC) pipe screened in the lower water-bearing zone <br />of the Brushy Basin (approximately 150 feet below ground surface). If the well produces <br />water, it will be sampled 8 times in the first 15 months after completion (i.e., immediately <br />after completion and every two months thereafter} to establish baseline conditions. If the <br />well does not produce sufficient water for sampling or is dry, water levels will be <br />recorded during the 8 baseline sampling events. After baseline conditions have been <br />established, a monitoring schedule will be developed in consultation with DBMS. <br />A boring log, well completion details, water levels, and an initial water quality analysis <br />will be submitted to DBMS within 90 days after well completion as part of the quarterly <br />hydrologic report. Subsequent monitoring data will be included in later quarterly reports <br />for the facility. Energy Fuels will notify DBMS and the BLM within 30 days of receiving <br />sample results if the analyses indicate deterioration in water quality compared to the <br />established baseline data. If this were to happen, Energy Fuels would evaluate ground <br />water conditions and propose suitable mitigation measures if the compiled information <br />indicate an impact from mining activities. <br />Energy Fuels will also monitor water inflows into the Whirlwind Decline from the lower <br />Brushy Basin. Flow rates will be reported quarterly and any changes in flow rates will be <br />described. <br />Ground Water Characterization <br />An environmental consulting company experienced in hydrogeologic investigations will <br />review the existing geology and hydrology database plus the information collected from <br />the underground mine, springs, and Monitoring Well W-1 aver the first 5 quarters of <br />mine operation. Staff from this company will then inspect the mine workings and prepare <br />a preliminary ground water characterization of the site. The preliminary ground water <br />characterization will identify any data gaps that may exist and propose measures far <br />