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<br />COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 3. Permit No. CO-0027146 <br />III. RECEIVING STREAM: <br />A. Identification, Classification and Standards (continued) <br />Tab Le III-1 -- Water Quality Standards <br />Parameter <br />Physical and Bioloeical <br />pH <br />Metals <br />Iron (Fe) <br />Physical and Bioloeical <br />pH <br />Standard <br />SEGMENT 2 <br />6.5 - 9.0 s.u. <br />2.0 mg/1 (chronic) <br />SEGMENT 4 <br />6.5 - 9.0 s.u. <br />B. Receiving Water Daca <br />1. Stream Lov Flow; The flows wFich will be used co calculate <br />effluent liaications are acute flaws, chose that occur for one <br />day every three years (1E3), or chronic, chose that occur for <br />chirry days every three years (30E3). These flows have been <br />determined by the Water Quality Concrcl Division and are shown <br />in Table IIZ-2. <br />Tab 1e III-2 -- Low Flows <br />Type <br />FLaw <br />COLORADO RIVER <br />Chronic (30E3): <br />Annual <br />1,086 cfs (702 MGD) <br />COAL CREEK <br />Acute (lE3) and Chronic (30E3): <br />Annual <br />0 cfs (0 MCD) <br />