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PART I <br />Page 6 <br />Permit No. COC-850000 ~ <br />B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />1. Effluent Limitations (continued) <br />d) Burden of Proof Requirement <br />The permittee has the burden of proof when requesting relief from <br />total suspended solids (TSS), total iron and(or settleable solids <br />limitations. Relief shall be granted only when necessary and shall <br />not be granted when the permittee has control over the discharge. <br />The permittee should endeavor to meet the primary limitations <br />whenavar possible. <br />1) For rainfall, to waive TSS and total iron limitations, it ie <br />necessary to prove that discharge occurred within 48 hours after <br />measurable precipitation has stopped. In addition, to waive <br />settleable solids limitations, it ie necessary to prove that <br />discharge occurred within 48 hours after precipitation greater <br />than the 30-year, 24-hour event has stopped. <br />2) For enowmelt. to waive TSS and total iron limitations, it ie <br />necessary to prove that discharge occurred within 48 hours after <br />pond inflow has stopped. In addition, to waive settleable solids <br />limitations, it is necessary to prove that discharge occurred <br />within 48 hours after pond inflow volume greater than the 10-year, <br />24-hour event has stopped. - <br />The Division shall determine the adequacy of proof. Ae part of this <br />determination, the Division shall evaluate whether the permittee <br />could have controlled the discharge in such a manner that primary <br />limitations could have been met. All manual dewatering moat meet TSS <br />and total iron limitations. <br />2. Sto rmwater Management Plan (SWHP- <br />A Stormwater Management Plan (SWHP) shall be developed for the portion <br />of each facility covered by this section of the permit. The SWMP shall <br />be prepared in accordance with good engineering practices. (The plan <br />need not be completed by a registered engineer.) <br />The plan shall identify potential sources of pollution (including <br />sediment) which may reasonably be expected to affect the quality of <br />stormwater discharges associated with the mining operation. In <br />addition, the plan shall describe and ensure the implementation of best <br />management practices (BMPS) which will be used to reduce the pollutants <br />in etormwater discharges associated with mining activity. <br />Mining operations must implement the provisions of the SWl~ required <br />under this part as a coaditioo of this permit. The Division reserves <br />the right to request and review the plans, and to require additional <br />measures to prevent and control pollution, as needed. <br />Amended 10/13/94 Effecti <br />