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<br /> <br />COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 6. Permit No. CO-0032638 <br />Outfalls U03 and 006 <br />Tables 6 and 7 show effluent limitations and the rationale for their choice. <br />Parameter <br />Flow (MGD) <br />pH (s.u.) <br />Oil and Grease (mg/1) <br />Total Suspended Solids (mg/1) <br />Settleable Solids (ml/1) <br />Total Recoverable Iron (mg/1) <br />Salinity <br />Table 6 (Outfall 003) <br />T ;.~;r~r; .... <br />Rationale <br />Monitoring <br />Frequency <br />1.87 a/ <br />6.5-9.0 a/ <br />10.U a/ <br />35/70 b/ <br />0.5 c/ <br />1.9* a/ <br />Monitor Only <br />Maintain WQS <br />WQS <br />SES <br />BAT <br />BAT <br />WQS <br />Salinity <br />Regulations <br />Weekly <br />Weekly <br />Weekly <br />Monthly <br />Monthly <br />Monthly <br />Quarterly d/ <br />* This is 30-day average limitation. Daily maximum limitations shall be two <br />times this limitation. <br />Parameter <br />flow (MGD) <br />pH (s.u.) <br />Oil and Grease (mg/1) <br />Total Suspended Solids (mg/1) <br />Total Recoverable Iron (mg/1) <br />Salinity <br />* See Table 6 <br />Footnotes: See page 7. <br />Table 7 CGutfall 006) <br />T ;.~: ter; ..., <br />R ~r;....~Te <br />Monitoring <br />Frequency <br />2.28 a/ <br />6.5-9.0 a/ <br />10.0 a/ <br />35/70 b/ <br />1.9* a/ <br />Monitor Only <br />Maintain WQS <br />WQS <br />SES <br />BAT <br />WQS <br />Salinity <br />Regulations <br />Weekly <br />Weekly <br />Weekly <br />Monthly <br />Monthly <br />Quarterly d/ <br />~~ <br />