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Require- <br /> <br />Requirement Requirement ment <br />complied <br />Comment <br /> citation with ? <br /> es / no <br />E. Compliance <br />with Federal The West Elk Mine discharges surface water only to the North Fork of the Gunnison River. There <br />and State water CDRMS were no exceedances of CDPS limitations during 2007. This finding of compliance is subject to <br />quality laws that regulation yes verification by the CWQCD. No WET test failures occurred at outfall 017. The data contained in the <br />pertain to 4.05.1(3) DMRs appear consistent with field observations made during CDRMS's inspections. <br />discharges of <br />surface water <br />F. Basic Standards CWQCC This finding of compliance is subject to verification by the Colorado Water Quality Control <br />for Surface regulations yes <br />Division. <br />Water 3.1.11 <br /> The West Elk Mine is located on stream segments 2 and 6 of the North Fork of the Gunnison River. <br /> Instream Numeric Standards for segments 2 and 6 are set forth in Rule 35 of CWQCD regulation 5 <br /> CCR 1002. Calculated Table Value Standards for instream metal concentrations are shown in Tables <br /> A-4 and A-5 of West Elk's discharge permit (CDPS permit CO-0038776). West Elk discharges <br /> surface runoff and/or mine water to segments 2 and 6 via CDPS outfalls. CWQCD based effluent <br /> limitations at these outfalls on values that would not cause exceedances of instream standards. West <br /> Elk had no exceedances of CDPS limitations in 2007. West Elk's compliance with its effluent <br /> limitations in 2007 indicates the instream standards probably were not exceeded as a result of surface <br />G. Instream CWQCC water discharges. Monitoring data from the North Fork at a location immediately downstream from <br />Numeric regulation yes <br />the mine (page C-2 of 2007 AHR) indicates Instream Numeric Standards were not exceeded on <br />Standards 3.3.0 segments 2 and 6. (This finding of compliance is subject to verification by the Colorado Water <br /> Quality Control Division.) <br /> <br />Sampling <br />H Table 5 of <br />. Sec. 2.04.7 of <br />frequency at CDRMS yes <br />surface water mining permit <br />monitoring sites C-80-007 <br />Page 2