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Region 12 of the Yampa River <br /> basin: <br /> Segment 13c, Trout Creek above <br /> Fish Creek <br /> Segment 13b, Foidel Creek <br /> Segment 13a, Trout Creek below <br /> Fish Creek <br /> Long term historical monitoring <br /> data from the stream segments <br /> indicate the iron numeric standard <br /> is frequently exceeded and the <br /> lead and manganese standards are <br /> occasionally exceeded. Premining <br /> data indicate these exceedances <br /> usually are unrelated to areas <br /> covered by active mining permits. <br /> Snowmelt from deep snowpack in <br /> 2009 is the suspected cause of <br /> historically high flow rates in <br /> Foidel Creek at Site 008, located <br /> immediately upstream from the <br /> Foidel Creek Mine. Foidel Creek at <br /> Site 008 is fed by surface runoff <br /> and coal spoil leachate springs on <br /> the historical Eckman Park/Energy <br /> Fuels coal mining area. <br /> Spoil leachate from Eckman park, <br /> carried in the channel of Foidel <br /> Creek to Trout Creek, is a <br /> suspected major source of the <br /> high sulfate concentrations <br /> observed in Trout Creek at Site <br /> 1005 in March 2009. CWQCC <br /> Regulation No. 33 indicates Trout <br /> Creek Site 1005 is subject to a 10 <br /> mg/I total recoverable iron <br /> standard and a contingent 250 <br /> mg/I sulfate standard (applicability <br /> of the sulfate standard is <br /> contingent on actual or potential <br /> domestic water use in the stream <br /> segment.) The sulfate stream <br /> standard was exceeded in March <br /> of 2009 at Site 1005.