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~ ~: <br />. , ~._ <br />j,JpP r ../ <br />~/" -~,' COLORADO DEPARTMENT OF HEALTH, Water Quality Control Division <br />Rationale - Page 2. Permit No. COG-500000 <br />Reporting (continued) <br /> <br />The permittees should also be aware of circumstan s that would require <br />24 hour verbal reporting, followed by written r~ orts. <br />Reauthorization <br />Part I.A.2(i) of the permit specifies that~%authorization to discharge <br />under this general permit will expire on~September 30, 1442. Any <br />permittee desiring continued coverage m st re-apply by April 1, 1992. <br />Maureen Dudley <br />January 16, 1987 <br />Phosphorus <br />Due to comments received during p~lic notice, the Divisioa has determined <br />The management plan for ~intaining the phosphorus standard in the Dillon <br />Reservoir, recommends to~l phosphorus monitoring for minor industrial <br />discharges which includeffffffgravel pits. Therefore, phosphorus monitoring has <br />been added to the gene~~jj~1 permit for those facilities which discharge in the <br />Dillon Reservoir drainAge. The individual certifications shall note whether <br />or not the site is go~Lerned by the monitoring requirement. If the monitoring <br />shows a significant contribution the permittee may be required to obtain an <br />individual permit. This requirement has been added to page 5 of the permit. <br />that any point source sand and ga vel discharge into the Cherry Creek Basin or <br />into stream segments impacting he Chatfield Reservoir, must obtain an <br />individual discharge permit. is determination is based on controls <br />established (or in the proces of being established) to maintain the <br />phosphorus standard in Cher Creek Reservoir and Chatfield Reservoir. This <br />restriction has been incorp ated into the permit on page 2. <br />Maureen Dudley <br />May 13, 1987 <br />