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COLORADO DEPARTMENT OF f1FALTX, Water Qua/iry Connol Divvion <br />Rationale -Page 2. Pmnit No. COG-SQOg00 <br />II. INTRODUCTION - S1i7RMWATTiR PROGRAM <br />• srormwarer discharges. Proau waur disrharges are addressed under Part LB of the permit; stormwater discharges are <br />atldrcssed under Part LC of the permit. <br />This will eliminate the rated for rosrrage under more than one pemtir for most such facilities. However, err discussed in <br />Section V.A.2.a of the Rationale, some facilities may wish to apply for an individual permit instead, in order ro take <br />advantage of some faderol t~luent guidelines not included here. Additionally, as distwsed in Section III.B of the <br />Rationale, the Water Qualrry Coturo/ Division of the Colorado Deportment of Health (the Division) raainr the authority <br />to require any fadUry to bt txrvestd wrier an indivrdrral permit. ' <br />71. <br />COVERAGE UNDER THIS PERMIT <br />A. <br />• <br />B. <br />• <br />T1m type of facillder aovaed by this pettnit has btm broadened to include aU mining and quarrying of ronmetallic <br />minerals, adept fueLt. This is the desorption ojSrandmd Industrial Clars~taation (SIC) Code 14. the pernit <br />previously rotrred only ronstruoion sand and gras+el mining (SIC Code 1442), but has been changed to include <br />these new taategorier due to the addition ojstonnwattr provisions for these same caregorier (see Scoron V.B of the <br />Rationale). Alto, sto»mvater from asphalt and roncrett batdh plane located err sand and gravel operations is <br />rnclttded here, due to their srmilarrry to the cntiered trainer in pollution potemial, and their function as an adjunct so <br />the mine operations. (The definition of asphalt and donntte batch plates taart include the tore of recycled asphalt or <br />roncrde.) <br />The new aategorier include: <br />S/C Code Industry live <br />141 Dimension stone <br />142 Crushed and broken stone <br />144 Sand and groHel <br />145 Clay, txromic, and rtfraoory tnineralt <br />147 Chemiml arrd fertilizer mineral mining <br />148 Nonmetallic mintraLs savraes, adept fuels (e.g., overburden remosnl, strip mining, <br />der) <br />149 Mrstxllaeous nonmetallic minerals, acept fads (e.g., asbestos, gems, fell dirt pits, <br />graphite, gypsum, pear. Pumice, tale, era) <br />2951 Asphalt batdt plants <br />NA Conorsc barrh plants <br />General vs. Individual Permit Covemtre <br />Any owner or operator tuuhorized by this permit may rtquert to be excluded from the roverage of this permit by <br />applying jot an indrvidttal mPS permit. The owner or operator shag submit an individual application to the <br />Division, with naronr supporting the request. <br />Altcrnaaly, if, after ewluation of the application (or additional infornwtion, such as tlu SWMP), it is found that <br />this general permit is not app/itxtbk to the operation, then the application may bt processed as one far an <br />individual permit, or a more appropriate genera! permit. The applicant will be notified of the Division's decision ro <br />deny dcr~cation under this general pantie. <br />Exemahons for Minor Mari ' 'r%•• <br />The Intmnodal Surface Transporation Effrritncy Ao of 1991 has resulted in some mod~carions ro the starmwata <br />regulations. Section ]068(c) of the Transporation Act has added an exemption to the stormwater regulations for <br />muniripalititt with less titan 100,01010 population The term 'municipality' includes rities, towns, rounties, special <br />