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' COLORADO DEPARTMENT OF HEALTH, Warn Quality Control Division <br />Rationale -Page S, Permit No. CO-0034/42 <br />1. uali - (Continued) <br />Table 1/1- 3 - Qualty of Ricelving Water <br /> ........::::. qnc:?;:~:: <br />Sulfate I 29 mg/l <br />Nitrite 1 0.1 mgR <br />Nitrate 1 <0.2 mgA <br />pH, s. u. 1 8.2 ug/1 <br />Total Hardness, mg/1 as CaCOr 1 100 ugR <br />Arsenic (total), ug/l 1 2.0 ugR <br />Cadmium (IRJ, ug/I 1 0.2 ug/J <br />Chromium (TRJ, ug/l 1 7.0 ug/l <br />Copper (tRJ, ugR 1 4.0 ugA <br />Iran (IRJ, ugR 1 3480 ug/l <br />Iron (PDJ, ug/l 1 570 ug/1 <br />Lead (tRJ, ugR 1 4.0 ugR <br />Manganese (IRJ, ugR 1 70 ug/l <br />Manganese (PD), ug/l 1 <10 ug/I <br />Mercury (I'ota1J, ug/l 1 0.1 ug/1 <br />Nickel (7RJ, ugR 1 <20 ug/l <br />Silver (TRJ, ug/1 1 0.1 ug/1 <br />Zinc (IRJ, ug/l 1 20.0 ug/l <br />2. QunntiN, Acute and Chronic Low Flows -The flows which will be used to calculate acute and chronic e,[Jluent <br />limitations are the one day in [hree year law flow (IE3J and the 30 day in [hree year low flow (30E3J, <br />respectively. Those flows which have been determined for the Yampa River and Williams Fork River 6y the <br />Water Quality Control Division, are shown in Table I1/-3a and Table I//-36 (a11 flows in cubic jeer per <br />second). <br />Table III - 3a -Acute and Chronic Low Flows (Yampa River) <br />Acute Chronic <br />Annual 90 166 <br />Table //I - 3b -Acute and Chronic Low Flows (R'iUiams Fork River) <br />.:.. Acutt...... :..... Chronic <br />Annual 42 48 <br />