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:_ ; <br />COLORADO DEPARTMENT OF HEALTH <br />Water Quality Control Division <br />4210 Easc 11th Avenue <br />Denver, Colorado H0220 <br />Page 2 of 4 <br />Permit No. COG-850023 <br />F. Facility Design <br />Capacity: <br /> <br />003 - the discharge from ?it `to. 2, prior <br />to mixing .rich Grass;r Creek. <br />00~ - the discharge _°rom ?it `Io.• i, prior <br />to mixing with Grassy Creek. <br />005 - the disc:zar~e from Pit ao. ~, prior <br />to mi:cing with Grassy Creek. <br />The sedimentation ponds were designed to <br />contain and treat the 10-year, 2+-heur <br />preCiplCaCiOn dvenC. <br />III. RECEIVING STREAPi: <br />A. Identification, Classification, and Standards: <br />1. Identification: Ail discharges flow co Grassy Craek, <br />segment 12 of the Yampa River, Upper <br />Colorado River 3asin. Segment 12 inc'_udes <br />all tributaries of the Yampa Ri•rer, <br />including all lakes and reservoirs, fora <br />the confluence with the Elk River to the <br />confluence with Elkhead Creek, which are <br />not on National Forest lands, except for <br />specific listings in segment i3. <br />2. Classification: Recreation, Class 2 <br />Acuatic Life, Class 2 (Cold) <br />Agricultural Use <br />3. Numeric Standards: The standards which 'nave heel assigned .n <br />accordance •rich the above ciassi:_cst'_ons <br />can be found in 3.3.0 Classifications and <br />Numeric Standards for the Uooer Colorado <br />2~rer 3asin and ::ortn ?'_atte 3rer <br />(?lanning Zegion 12). (: CCR 1002-37, as <br />amende3 Karch 1, 149=. .t should be Zotad <br />that this acii_~; does hoc disc:^.arze <br />pollutants which are Limited 'rr 'aacar <br />eualicy standards with tie exceot_on of ~H. <br />