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t { <br />COLORADO DEPARTMENT OF HEALTH <br />Water Quality Control Division <br />4210 East 11th Avenue <br />Denver, Colorado 80220 <br />Page 3 of 4 <br />Permit No. COG-850029 <br />IV. FACILIT" INFORt4ATI0N: (continued) <br />Drainage from the mite m1gL3Ca5 C:1rOLLgn a seal to an abandoned mine, the <br />Vu Mine. 'fie =low from tae 'Iu :Sine L1OWS to a stock pond for which the <br />owner holds a benefic'_ai use eater tiger. The State Engineer has approved <br />of rite ?ermanenc diversion for this purpose; thus a change is not <br />appropriate. No discharge to State waters occurs from this drainage. No <br />'_andfills or ore taiiirgs are located adjacent to or near [his facility. <br />Additional l-; taere are no dr'_zking .,a tar intakes within 5 miles <br />downstream. <br />VI. ANTIDEGRADATIOf:: <br />These are not reviewable waters pursuant to Section 3.1.8(3)(a) of the <br />Basic Standards _nd "!echodclogies ._r Surf_ce Wa*_er (5 CCR 1002-?;, based <br />on a finding of no increased water quality impact. <br />VII. DISCUSSION: <br />Applicable effluent L-'mitations regarding active mining outfalls are <br />addressed in ?art I.3.1(a) of tie general permit. applicable effluent <br />monitoring requirements regarding ac[i•:e mining oucfaiis ara addressed in <br />Part I.B.3(a) This outfall is subject co cite effluent limitations and <br />monitor'_cg requirements _°or acc'_ve mining out:alls as provided in Part <br />I.B. of tae general permit. <br />As this outfall discharges co t!:e Gunnison River, a tributary of the <br />Colorado River, total dissolved solids monitoring of the discharge shall <br />be perfored. Toca1 phosphorus monitoring saa11 not be performed.. See <br />page 3 of tae general ?ermic for more information. <br />The ?ermic[ee •.r_11 be required to aeveloo and implement a Story 'dater <br />Management ?tan (SWMP). altaough some activities may already be in place, <br />the Sw'MP will r=_quire tae Permittee a coordinate best management <br />practices so the result is a _eduction or e1'_minacion of pollutants <br />reaching state water from areas not 1lmited by effluent limitations. The <br />?ermittee will be reeuired to submit the SWMP to the Division for review <br />within si:: mantas from the dac=_ cercif'__acion is issued. For speci its of <br />the ?lap and additional requirements, ?lease reference the Part I~.2 of <br />.he 3enecal permit. <br />The permitLee will not be reeuired Lo perform '.vltole Effluent Toxicity <br />(WET) testing pursuant .o Section 5.9.i(°_)(a)(i)(A) of the 3egulacions far <br />the State Discharge 2ermit System 5.1.0 r5 CCR 1002-2) •.rhich exemocs <br />facilities _arc:fiad under tae general ?ermit. <br />