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fC//,11. ,. V. ~ - .. .. <br />Facility No. COG-500451 <br />CDMG Permit No. M-1004-009 <br />Page 1 <br />CERTIFICATION <br />AUTHORIZATION TO DISCHARGE TINDER THE <br />CDPS INDUSTRIAL GENERAL PERMIT <br />FOR SAND AND GRAVEL M~VVINC AND PROCESSING GENERAL PERMIT <br />Category 07, Sub-category IA -General Permits, Sand and Gravel -Process Water & Stormwater <br />SIC Code 1442, Sand and gravel mining, washing, crushing screening and stockpiling. <br />Current ju 5327/ytar (effective July I, 2003) <br />This permit specifically authorizes.• Asphalt Specialties Company, Inc. <br />Daniel Hunt, President <br />7321 E. 88`" Avenue <br />Henderson, CO 80640 <br />303.189.8555 Fax: 303.189.7707 <br />with the facility contact of.' Rob Laird - 303.289.8555 <br />to discharge from facilities identified as the Turnpike Mining Resource Project, located in Section 31 , T2N, R68W,~ Weld County, as <br />shown in Figure 1 of the permit, from ovtjall 001, as shown in Figure 2 of the permit and further identified and described in the <br />following table. <br />*,Outjall ;. t~~,`Fsa~-fix ~` ~,,~t~`escrmAFoti`and2't'•~ °t~ _~~_'_~~c~'3' '",~~ '~B~ ;FlowRa7e~w <br />.+e,.'_._,.. - _,k.~:. x. a~a::~.- yy ~. .. sr".,. ~ ',~s3~'"~e"' .:~ r - ~ 3~..~az~dir..-,r~,,..:.~:.ss <br />001 Discharge is from lake dewatering prior to entering Boulder Creek Avg. =1.3 MGD <br />Maz = 3.0 MGD <br />The discharge is to Boulder Creek, Segment 10 of the Boulder Creek Sub-basin, South Platte River Basin, found in the ClassiRcations <br />and Numeric Standards for the South Platte River Basin (S CCR 1002-38J, as amended January 30, 1002. Segment !0 bas been <br />designated Use Protected and classified jot rhefallowing uses: Recreation, Class /a; Aquaric Life, Class 1 (Warn); Agriculture; Water <br />Supply. <br />Antldegradation review does not apply to this permit because the receiving water is designated as Use .Protected. <br />Salinity (7'DS) monitoring of the discharge will xat be required <br />Phosphorus monitoring of the discharge will not be required. <br />This facility is a dry mining operation and will only have discharges associated with mine dewatertng. There are no process generated <br />wastewaters. <br />At the time of application, the permittee certified that they had developed and implemented a Starmwater Management Plan (SWMP) for <br />this facility. As a condition of this permit, a copy ojthe SWMP must be provided to the Division upon request. <br />The perminee is encouraged to read the general rationale for an understanding of how this permit was developed and read the permit to <br />see what requirements eclat. In the pesmit, effluent limitations and manitoring/reporting requirements are specified in Parts I.B. and <br />I C; special notification requirements for effluent violations are addressed in Part IIA. <br />All correspondence relative to this facility should reference the specific facility number, COG•500452. <br />John K. Nieland <br />February 25, 2004 <br />ISSUED AND EFFECTIVE: FEBRUARX 27.2004 EXPIRATION: SEPTEMBER 30.2004 <br />