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P:1 P.: i <br />Page G <br />Permit i1o. COG-350000 <br />B. EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS <br />1 <br />Effluent Limitations (continued) <br />d) Burden of Proof Requirement <br />The permitcee 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 permitcee should endeavor to meet the primary limitations <br />whenever possible. <br />1) For rainfall. to waive TSS and total iron limitations, it is <br />necessary to prove that discharge occurred within 48 hours after <br />measurable precipitation has slopped. In addition, to waive <br />settleable solids limitations, i[ is necessary to prove that <br />discharge occurred within 48 hours after precipitation greater <br />than the 10-year, 24-hour event has stopped. <br />2) For snowmelc. to waive TSS and Co cal iron l.imitacions, 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 [hat discharge <br />occurred within 48 hours after pond inflow volume greater than <br />the ]O-year, 24-hour even[ has stopped. <br />The Division shall determine the adequacy of proof. As part of <br />this decermiracion, the Division sha11_ evaluate whether the <br />permittee could have controlled the discharge in such a manner that <br />primary limitations could have been me C. A11 manual dewatering <br />must meet TSS and to cal iron limitations. <br />2. Stormwater Manaeemenc Plan <br />The permitcee shall prepare and submit two copies of a Stormwater <br />Management Plan (SWMP) co the Water Quality Control Uivision. The <br />plan shall be submitted within si:t months Erom [he date that <br />certification under this oermic was eranted to the Facility. An <br />additional copy of [lie plan shall be submitted co:' <br />Colorado Department of Natural Resources <br />Mined Land Reclamation Division - Coal Mining Section <br />423 Centennial Building <br />1313 Sherman Scree[ <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 effect as long <br />as the Facility is regulated by a CDPS permit. <br />