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P?.RT i Page 6 Permit No. COG-850000 B. EFFLUENT LIMIT.4TION5 Af7D MONITORING REQUIREMENTS 1 °f_`luenc Limitations (continued) d) Burden of Proof Requirement The permittee has the burden of proof total suspended solids (TSS), vocal i limitations. Relief shall be granted noC be granted when the permittee has The permittee shcuid endeavor to meet wh=_never possible. when requesting relief frcm :on and/or sectLeable solids on l•7 when necessary and shai'_ control over the discharge. the primary Limitations L) For rainfall. to srai•~e TSS and total iron limitations, is is necessary co prove chat discharge occurred within 48 hours after measurable precipitation has stooped. In addition, co waive sectLeable solids limitations, is is necessary to prove chat discharge occurred within 43 hours zfter precipitation greater than Che 10-year, 24-hour even[ has stopped. 2) For snowmelt. co waive TSS and total iron ].imitations, it is necessary co prove that discharge occurred within 49 hours aE:.er pond inflow has stopped. In addition, co waive settleable solids limitations, it is necessar;~ co prove chat disc'.:arge occurred within 48 hcurs after pond inflow volume ~reacer than the 10-year, 24-hour event has stopped. The Division shall determine the adequacy of proof. As part of this decermir.acion, the Division shall evaluate whether the permittee could have controlled the discharge in such a manner that primary limitations could have been me c. A11 manual dewacering must meet TSS and total iron limitations. 2. Stormwater 'lanaeeme^.c ?Lan The permit=ee shai: prepare and submit c•.ro copies ~° a Stornwater Management Plan (Sw?IP) to the '.later Qualicv Control Division. The plan shall be submitted within si:c months `rom the dace that certifica r_on ~_nder this Hermit was Franc=_d to the =acility. An additional copy of the plan shall be submitted co: Colorado Department of `lacurai Resources Mined Land Reclamation Division - Coal :4ining Section 423 Centennial Sui'_ding 1313 Sherman Street Denver. CO 9020} The Division will review and approve each plan. Upon approval, the plan she 11 be incorvoracad into .^e permit_ee's cart _f icac'on by reference. Failure to imoiemenc t.`,e aoerovea plan as aescibed shat be a violation o[ tie oermic. The glen shal'_ remain i^ ef_`=_ct _., ~ong a~ the fsc___-. .~ _ ~uiac.a b~: a ~~DPS -ermi=.