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<br />Table 3-1 Discharge Limitations <br />Effluent arameter 30-Da Avera e 7-Da Avera e Dail Maximum <br />Flow (MGD) Re ort NA Re ort <br />H, s.u. (Min/Max) NA NA 6.5/9.0 <br />Oil and Grease (m /1) 30 45 NA <br />TDS (m /1) NA NA 10 <br />TSS (m /1) NA NA Re ort <br />3.2 Monitoring Requirements <br />In order to obtain an indication of the probable compliance or noncompliance with the <br />effluent limitations as described in Table 3-1, all effluent parameters will be monitored <br />at the required frequencies as specified in Table 3-2. Monitoring will be conducted <br />when discharge is anticipated and will be reported to the Colorado Department of <br />Public Health and Environment (CDPHE) as required by Colorado Discharge Permit <br />System General Permit No. COG-500000. <br />A flow-measuring device shall be installed at outfall 002 (Figure E-2) to give <br />representative values of the effluent quantities at this discharge point. The flow may <br />also be determined by using the pump capacity multiplied by the length of time the <br />pump is operated. Such method may be used provided that, at the request of the <br />CDPHE Water Quality Control Division or the Environmental Protection Agency, proof <br />of the accuracy of any Flow measuring device used in obtaining data submitted in the <br />monitoring report can be shown. The flow-measuring device must indicate values <br />within 10 percent of the actual flow being discharged. <br />Table 3-2 Monitoring Requirements <br />Effluent arameter Measurement Fre uencv Sam le T e <br />Flow (MGD) Weekl Instantaneous <br />H, s.u. [n-situ <br />Oil and Grease (m /1) Weekl Visual <br />TDS (m /1) Quarter) Grab <br />TSS (m /l) Month) Grab <br />Prel~mmarv Response Plan A-17 <br />Yankee Gulch Sodmm Minerals Project <br />American Soda, L.L.P. <br />