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Permit No. COG-500000 <br />Facility No. COG-500481 <br />CDMG No. <br />Page I <br />CERTIFICATION <br />AUTHORIZATION TO DISCHARGE UNDER THE <br />C'DPS INDUSTRIAL GENERAL PERMIT <br />FOR SAND AND GRAVEL MINING AND PROCESSING GENERAL. PERMIT <br />Category 07, Subcategory 1 - General Pennits, Sand and Gravel - Process Water & Storm water, Annual Fee = $193.00 <br />SIC C'ode 1442, Sand and gravel mining, washing, crushing screening and stockpiling <br />This permit specfically authorizes. Varra Companies Inc <br />Christopher L Varra, President <br />8120 Gage St <br />Frederick, CO 80516 <br />303-666-6657 FAX 303466-6743 <br />with the facility contact of same, <br />42/90 WCR 17 <br />Platteville, CO 80651 <br />to discharge from jacilitie'S identified as the HEINTZELAIAN PIT 116, located at Lai: 40D 11' I2"Long: -104D57'48", Weld County as shown in <br />figure 1 of the permit, from Discharge Poini(s) identified as 001,4-002A, as shown in figure 2 ofthe permit and further identified and described in this <br />table. <br />Discharge <br />Description and treatment Estimated <br />Point Flow Rate <br />OOIA Ground water and processing water to drainage seep. Avg. = 2.2 MGD <br />002A Inactive and used.for• backup purposes. 0.0 MGD <br />The discharges from Outfalls OOIA and 002A are to Segment 6 ofthe.St Vraln River Sub-basin, found in the Classifications and Numeric Standards <br />for South Platte River, Regulation 38 (S CC.'R 1002-38); last update effective 3/2/06. This segment has been classified for thefollowing uses: Aquatic <br />Life Warm 2,-Recreation la and Agriculture. <br />Salinity (TDS) monitoring of the discharge will not be required. <br />Phosphorus monitoring of the discharge will not be required. <br />Antidegradation review does not apply because Segment 6 is U.se Protected. <br />At the time ofapplication, the permittee certified that they had developed and implemented a Slormwater Management Plan (.SWMI) forthis facility. <br />Christopher Varra signed this certification on 9118106. As a condition of this permit, a copy of the SWMI, must be provided to the. Division upon <br />request. <br />The permittee is encouraged to read the general rationale. for an understanding of how this permit was developed and read the permit to see what <br />requirements have changed since the last renewal. In the permit, effluent limitations are specified in Parts I.B. and LC and monitoring/reporting <br />requirements are specified in Part LD; special notification requirements for- effluent violations are addressed in Part ILA. <br />All correspondence relative to this facility should reference the specific facility number, COG-500481. <br />Raymond Nalepa <br />912112006 <br />ISSUED AND EFrECTI VE SEMM`BER 22, 2006 EXPIRATION: SEPTEMBER 30,2007.: <br />This facility permit contains 26 pages.