REP18339 - Laserfiche WebLink

Home Browse Search

September 2002 4 Energy Fuels Coal, Inc. 2001 Annual Hydrology Report QUARTERLY SURFACE AND GROUNDWATER MONITORING PROGRAM DATA SUMMARY AND DISCUSSION 2001 AHR Introduction This AHR section presents all surface and ground water data collected at the Southfield Mine from 1979 through the end of the reporting period. Discussion of these data, including potential impacts and trends, follows below. Surface Water Field and laboratory data collected from approved monitoring points on Newlin, Oak, Magpie and Second Alkali Creeks are shown on water quality Tables 10, 11, 12, 13, 14, 15, 16, and 17. Stream flow measurements for these monitoring locations are summarized on Table 9. Monitoring of upstream and downstream locations on Newlin, Magpie and Oak Creeks was _ _ continued during the, reporting_period~Data from.the additional monitoring is-included.,in..thee~ ,.~,~_, . - ° -~ '~ stream-quatity` anil ~quanrity-da~a `suminhry tat5i"es. ~In addition, EFCI iio longer tncIudes data"'''~''~'` '` from the Newlin Creek monitoring point prior to second quarter of 1997 since the single monitoring location was located between the two current monitoring points. Data from the original Newlin Creek monitoring point (NC-1) is included in prior AHR's. _ . Stream flows occurred only in Oak Creek during the spring months in response to limited precipitation events during the reporting period. The limited precipitation events were not enough. to_produce ephemeral surface flow m Magpie Creek or Second Alkali; Creek:dunng ~,~~ ,~~~, _ tlte'enttre reporting.period''' - "~ : _ ~j.~ ~` =:f~_ j -~ , Review of the accompanying water quality data indicate no unusual or harmful trends. Data ~ for Oak Creek monitoring indicate slightly increasing levels of TDS, conductivity, sodium, calcium and sulfate downstream as compared to the upstream location. All other parameters were similar for the upstream and downstream monitoring locations, and are comparable to ranges found in previous monitoring periods. No deterioration of Oak Creek resulting from mining is apparent from the water quality data collected to date. The data for Newlin Creek show no significant changes from the upstream and downstream monitoring locations, and are comparable to ranges found in previous monitoring periods. No monitoring data from Magpie Creek, Newlin Creek, or Second Alkali Creek are available for discussion for the reporting period.