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' COL2RAD0 DEPARTMENT OF HEALTH, Water Qtrn[iry Control Division Rnnnnnle -Page 8, Permit No. CO-0043567 77te terms and conditions of this permit, as related to stormwnter discharges, include.• aJ SeereRation of Stormwater Discharges: Al! discharges covered by the stormwnter portion ojthis permit shall be composed entirely of storxtwater (except as discussed at Par! /.E.2.b)ix) ojrhe permit). Stormwater which mixes with process water rs subject to process water controls. Discharges jmm sources other than stormwnter must be addressed by the process water controls in this CDPS permit. Arens not covered by the existing ditch and pond systems are the outslopes below porair, roads, and possibly outer areas covered by steal! area exemptions or mining areas which existed prior to the state Mined Lnnd Reclntnation regulations taking effect. bJ Stormwater Management Plans (SWMPsI: The purpose of a SWMP is to identfy passible pollutant sources [hat mrry' contaminate stormwnter and to set out best management practices that, sv/yen implemented, will reduce or eliminate any possible water qualit}' impacts. A SWMP shall be developed for the Kerr Mine in accordance with good engineering practices. The plan shall identify potential sources of pollution which may reasonably be expected to affect the quality of stormwnter discharges associated with industrial activity. !n addition, the plan shell describe and ettcnre the implementation of practices which are to be used to reduce the pollutants in stormwnter discharges associated with industrial neriviq~ at the facility, and to assure compliance with the terms and candition.c of this permit. Kerr Coal Company must imp(emenr the provisions ajthe SWMP its a condition of this permit. Contents and requirements ojrhe SWMP are discussed in the permit in Part LE.2.6). c) Comnlinnce Dates: Kerr Coal Company shall have implemented the Kerr Mine SWMP nnc! be in compliance with it ns soon as possible bur no Inter than Mal' 31, 1994. The SWMP shall also be submitted to the Division by this date. The SWMP shall Ge updated as appropriate, and sign~canr amendments sent ro the Division. rIJ Cornnrehensive Fncilin~ /nsnecrions: The permiuee will Ge required m make a thorough inspectimr ojdreir stormrarer mnnngernenr system, ar least twice per rear (in the spring and fall). These inspections miser be docurnenred mrd sutntttari:ed in dte nmuml report. (See Part LE. 2. g) ojrhe permit.) e) Annual Report: T1re permittee wi(( be required to srrbrnir mr anrwnl report, covering Jnmrmy l dtran~h December 3! ojench veer, a^ dte uvern/l compliance with the SR'd/P. S. Ecmromic Rensmmbleness Evn(untian: Section 25-5-503(8) of the revised (June 1935) Colorado N'nrer Quality' Contra! Act required the Division to "determine whether or not mty or all ojrhe water gnnlity srnnrlarrl bused c/jlueru 7unirarions are reasonably related ro the economic, environmental, pubhc health and energy impncr.r to the public and rffccted persons, and are in fitrtherrmce ojrhe policies set fitrth in sectinn.~ 25-5-l92 and 25-5-104." the Regulnriuns for the Stare Discharge Permit System, 6.1.0, jttrthrr define this requirement under 6. l2.lJ and store: "N7rerr economic, enviranmentrtl, public health nm! errergr impacts m the public earl affecrcvl persons hm'e been ronsirlered in the c[ass~cntions and srnndnrrls sernng process, permits wruten to erect rhr ~uutrlnrrh' mqr be presumed ro hrn'e token into consulernnon economic jncmrs unless: nt Anew pernut is Issued ~drere the discharge suns nw ur eri.~rence a; the rime ojrhe c'lnssficurimt and .rtnnrlnrrl.c rulemnking, or b) In dre case aj n continuing discharge, rulditionnl injonttatiar ar jncmrs have emerged that were not nnricipured ar conxrdered ar the time of the clrrssificnriun and s¢mdurd~ nrlentnking. " 77u' eoulunrion jar tlu. prrn:ir ~h<nrs that rlu' lYater Quu(itp Conn~o! Cnnnrri~sion, during their proceedings r,r adapt the Clacxtlicnrion urr;' Nunu•rtc Srrmdnrdc jot the Upper Culnrndu and Nurrh Plnur Ricer Ian.<in~, cunsulerrrl er~unwnic ten>urrnhlen<o ~.