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PART i <br />• Page 6 <br />• Permit No. COG-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 />co cal 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 limicacions <br />whenever possible. <br />1) For rainfall. to waive TSS and total iron limitations, it is <br />necessary to prove chat discharge occurred within 48 hours after <br />measurable precipitation has stopped. In addition, co waive <br />settleable solids limitations, it is necessary co prove that <br />discharge occurred within 48 hours after precipitation greater <br />than the 10-year, 24-hour even[ has stopped. <br />2) For snowmelt. co waive TSS and total iron ].imitations, it is <br />necessary co prove that discharge occurred within 48 hours after <br />• pond inflow has stopped. In addition, to waive settleable <br />solids limitations, it is necessary co prove that discharge <br />occurred within 48 hours after pond inflow volume greater than <br />the 10-year, 24-hour event has stopped. <br />The Division shall determine the adequacy of proof. As part of <br />this decermiracion, the Division shall evaluate whether the <br />permittee could have controlled the discF~arge in such a manner *_hat <br />primary limicacions could have been met. A11 manual dewatering <br />must meet TSS and co cal iron limitations. <br />2. Stormwacer Management Plan <br />The permittee shall prepare and submit two copies of a Stormwater <br />Management Plan (SWMP) co the Water Quality Control Division. The <br />plan shall be submitted within si:c months from the date chat <br />certi~icacion under this oermic was eranted co .the facility. An <br />additional copy of the plan shall be submitted to <br />Colorado Department of Natural Resources <br />Mined Land Reclamation Division - Coal Mining Section <br />423 Centennial Building <br />1313 Sherman Street <br />Denver, CO 80203 <br />• The Division will review and approve each plan. Upon approval, the <br />plan shall be incorporated into the permictee's certification by <br />reference. Failure co implement the approved,pLan as described shall <br />be a violation of the permit. The plan shall remain in ef£ecc as long <br />as the facility is regulated by a CDPS permit. <br />