Laserfiche WebLink
COLORADO DEPARTMEM' OF F/EALTH, Water Quality Control Division <br />Rationale -Page 2, Permit ~'o. CO-0034142 <br />III. RECE/V/NG STRE.~A! <br />A. Identtfication, C'lass(/ication and Statufatds <br />1. ldenrificatiori: <br />2. Classificatio.~: <br />3. Numeric Standards: <br />Discharger to Segment 13b of the Williarru~ Fork River and Segment 1 of the Yampa <br />River. Both receiving waters are part of the Lower Yampa/Green River Sub-basin of -- <br />the Lower Colorado River Basin. <br />77re Williams Fork River stream segment is classed for the jolbwing uses: <br />Recreation, Class 2; Aquatrc Life, Class 2 (Warm); Water Supply; Agriculture; Use <br />protected. <br />The Yampa River stream segment is classed far the following uses: Recreation, <br />Cars 2; Aquatic Life, Class 1 (Cold); Water Supply; Agriculture <br />The compfet~• list of standards which have been assigned in accordance with the above class cation jot <br />the Wil[iamt Fork River and Yampa River can be found in 3.7.0, Class~cationt and Nutneric Standards <br />for the Colorado River Basin (S CCR 1002-SJ. It should be noted that the facility's discharges to the <br />Yampa River do not contain any pollutants !'united by water quality standard, with the acepdon of pH. <br />The following numeric standards which have been assigned for the Williams Fark River will be used to <br />develop e,Qluent limitations. <br />Physical and Biological <br />pH = 6. S - 9.0 s. u. (also applicable to the Yampa River) <br />Fecal Coliformr = 2000/100 m1 <br />Inoreanic <br />Unionized Arnnutnia (NHS, Chronic = <br />Residual Chlorine (CltJ = <br />Boron (BJ = <br />Chloride (ClJ = <br />Sulfate as SO, _ <br />Metals <br />0.1 mg/1 <br />Chronic 0.011 mgR; Acute 0.019 mg/1 <br />0.75 mg/1 <br />250.0 mg/! <br />250.0 mgR <br />Metal _ Criteria Standard Analytienl Method <br />Arsenic (AsJ Acute 50 Total Recoverable <br />Iron (FeJ Chronic 1000 ug/1 Tota! Recoverable <br />Manganese (Mn) Chronic 1000 ug/! Total Recoverable <br />Mercury (HgJ Chronic 0.01 ug/f Total Recoverable <br />Selenium (SeJ Acute !0 Dissolved <br />Cadmium (CdJ Acute TVS-trout TYS <br />Cadmium (CdJ Chronic TVS TVS <br />Copper (CuJ Rcute and Chronic TVS 7YS <br />Lead (PbJ Acute and Chronic TVS TVS <br />Nickel (NiJ Acute and Chronic TVS TVS <br />Silver (AgJ Acute TVS TVS <br />Silver (AgJ Chronic TVS-trout TVS <br />(TVS = Tabfe '/alue Standards) <br />