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COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />', Rationale - Page 13 Permit No. CO-0043168 <br />9. Permit Policv for Minine Activities: (Continued) <br />(3.) violate the WQS of the receiving stream segment(s) and <br />beneficial uses (for active mining facilities). <br />4. The district engineer from the WQCD has visited the site and <br />concurs with inactivation. DE concurrence shall be <br />specifically stated on the appropriate inactivation request <br />form. <br />5. Upon request for permit inactivation (entity submittal of the <br />signed inactivation request form), the permittee shall be <br />provided a letter from the P 6 E Section within 30 days which <br />'outlines the conditions for the demonstration. <br />Failure to satisfy any of the above will be grounds for continuing <br />to require a permit for the site. For further information and <br />details regarding this policy, the permittee should request a copy <br />of this WPQ-S policy. <br />C. Monitoring and Reporting <br />1. Monitori.ne: Table VI-4 below lists the monitoring requirements for <br />this facility, including sample type and frequency. <br />Table VI-4 -- Monitoring Requirements for Discharge Point 001 <br />Parameter <br />Measurement <br />Frequency <br />Sample Type <br />Flow, MGD <br />Oil and Grease, mg/1 c/ <br />pH, s.u. <br />Total Suspended Solids, mg/1 <br />Potentially Dissolved Cadmium, mg/1 <br />Potentially Dissolved Copper, mg/1 <br />Total Recoverable Iron, mg/1 <br />Potentially Dissolved Lead, mg/1 <br />Total Recoverable Manganese, mg/1 <br />Total Mercury, mg/1 <br />Potentially Dissolved Silver, mg/1 <br />Total Zinc, mg/1 <br />Whole Effluent Toxicity, Acute <br />Whole Effluent Toxicity, Chronic <br />Weekly Instantaneous <br />Weekly Visual <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />Weekly Grab <br />W?ekly Grab <br />Weekly Crab <br />Quarterly ~ Crab <br />Semiannually ~ Composice <br />~ See Fart I.B.4 of the permit for acute WET requirements. <br />See Fart I.B.11 of the permit for chronic WET requirements. <br />J See footnote J on page 3 of the permit. <br />