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COLORADO DEPARTMENT OF IIEALT77, Water Quality Control Division <br />Rationale -Page 3. Permit No. COG500000 <br />III. COVERAGE UNDER TTIIS PERMIT <br />• districts or any etuity rotated by or pursuant to State law. (Note: the 7~ansportation Act uses a differem <br />clarshaation saha»e jot municipalities than is outlined in EPA's muniripal starmwater permit requirements. Under <br />the Transportation Act, the deretmitwtion of the silt of a municipality includes the total population ojthe <br />municipality. For example, a county with a total population of outs 100,0A0 is not eligible jot the transportation <br />Au csnnption, ester though the same county may nor be required to obtain a muniripa! permit.) <br />Stomrwattr discharges associated with industrral activity (txotpt jar airports, steam ekesric pawcr plane, or <br />unrontrolled sanitary /arrdfillsJ, that an owned or operated b) d minor munlatpaBty art not required to apply for <br />or obtain a storarwatn permit at this time. (Note: This uanption does not apply to other, privately owned <br />industries within the same mirror municipality.! <br />Thesc facilities an not pmnanently aonpted from the regulation, bra arc instead plaacd in Phase n of the <br />stormwarer program. Phase II factlities, including minor muniripaGtits, an currently undo a moratorium, which <br />escape them from perarit re[luinvntnts urrdn the stormwatn program. It is rspected that coverage will 6e <br />required at some futon data <br />IV APPLICATION AND CERTTFIGiTTON <br />A. Additional AoolieaNon Reauinments <br />nth the inclusion of stotmwater provisions in this permit, the application requirrmtnrs have changed to some eaent <br />as we[L In addition to the appGaation requiroments outlined in the previous permit, the following must also be <br />submiucd• <br />• I. Description of stormwater discharges, including drainage area <br />2. Description of present and proposed list managenrtru practices at site, including trap. <br />3. Any uisting xntn quality data on stormwatn discharges. <br />4. For new farilitiv .(beginning operations afro October I, 199TJ, and for al! other facilities applying after <br />July I, 1993, awrhaation as to the preparation of a SWMP. (Ste Section V.B.3.a of the Rationale for SR'MP <br />cernc~ntion rcquirrtnenu for edsting facilities applying on time.! <br />B. Permit CemRcotions <br />This pnmir is made uP of sesrral parts, same of which do nor apply to all permittees ~.e., while most facilities will <br />require rovrrage under the stormwntn section LC, many will not regain rovrrage under the process water section <br />LBJ. Tlureforc, the itdividrtal cert~aution prepared for each applicom wiU indicate whether or oar Parr LB of the <br />permit mart be followed by that applicant. In aB oases (except as noted in Section III. C, above), Part 1. C must be <br />followed. (/n the absence of such indication from the Division, the permiuee will be responsible for determining <br />and thin complying with the applicable sections in Parr I.J In addition, all aermittees will be rcquind to comply <br />wrlh Parr I, subparts A, D, Sand F, and aB of Parr II of the pamiJ. <br />TERMS AND C011tDI170NS OF PERMIT <br />A. Process Water Drscharees <br />1. Numeric Limitations: Numeric limiu will be applied for some of the itdustrial categories covered lrY this <br />. pnmtt. These limits an from the EPA Federal Guidelines for the applicable poim source category, as follows: <br />a Mineral mining arrd proousing point source category - 40 CFR 436 - subpart B (crushed stone), C <br />(construction sand and gra>,elJ, D (industrial sand), R (phosphate ro~J -and all other industrial facilities <br />ro~rrrd undo SIC Cade 14, acept those specifically listed in paragraphs b and c below, and conoete <br />