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t,Ll t'IL "UUk-V r cxx • 3uo r o6VJ7lJ Jan iu zui i n ; oo <br />Colorado Discharge. Permit 4stM jZgUIation s <br />MEVOR MODIFICArIOIYTO CERTIFIC 2yoN <br />r. V2 <br />Permit NurAber COG-500000 <br />Facility Number COG-501527 <br />Modification No. 1 <br />Page 1 <br />under <br />D1'S`CHARGESAS,SOCIA TED WW SAND AND GRAVEL AMVZ'G&ND PROCMSING OF'EA4TIONS <br />(AAD OMLvR NOIViW7ALLICMt1YE,RAL4FX,CF,PPFUEL) <br />Caregory 07, Subcategory IA. Current annual fee $220 (CRS 15-8=342) (SIC 1442) <br />Division htitisted Modification =No Fee <br />This certification specifically authorizes Lafarge West, Inc. to discharge in accordance with the, <br />General Permit for Sand and Gravel Mining and Processing Operations (and other nonmetallic minerals except fuel). <br />All correspondence relative to this facility should reference the specific facility number, COG-501527. <br />Pem flee Contaer <br />Lafarge West, Inc. <br />Meghata McDonald, Director of Fnviroament <br />10170'?C,h'urcli Ranch Way, Suite `200 phone..303-657-4000 <br />Westminster, CO $0021 Facility Contact: Corey Hansen, Environmental Manager <br />Email: grreX. g 3tnQafarste na com <br />KoJifiration No. 1 <br />The certification bas been modified to remove the site specific parameters that were added to the certification. After review of the <br />application and the location of the facility, there is no known groundwater contaminations in the area. The table for Effluent <br />Limitations and Monitoring Requirements has been updated. <br />_ _._,,. ..... ::. -..:: „-r.; .,•»:??.r ? t?F;'???CS`l1ri171tetl?t4ki:'sl?dt6.,.:'??'.;; <br />001A The discharge ofsroundwater after treatment with sediment and erosion controls <br />prior to entering the Cache La Poudre River: Avg: 5 MOD <br />002A The discharge of groundwater after treatment with sediment and erosion controls <br />prior to entering the Cache 1A Poudre River.' Avg.= 5 MOD <br />Effluent Parameters <br />The discharges go to the Cache La <br />River Basin, found in the Classiflc; <br />effective November 30, 2010). Sep <br />(Warm); Recreation, Class B; and., <br />Flow, MGD <br />PK s:w <br />R,iver,; <br />Report <br />NA <br />N/A NA <br />Report <br />12 of the Cache La Poudre River Sub-basin, Soutb:Platte <br />uth Platte }?i yer Basin (Regulation No. 38; last update <br />d for the following beneficial useAquatic Life, Class 2 <br />Discharge Evaluation <br />u power is not avadable, flow maybe measured on an <br />If s instantaneous basis. Facility sha] <br />a - visual shcoh is noticed a <br />grab Sampis must be taken and analyzed for oil and grease <br />MODIFIED AND EFp'IuCTIVE DECEMBER 20" 2010 <br />E---T U : JUNE 30 013 <br /> <br />,Project Nance, Activity and Locadon <br />Wargo Iverson Facil' - The facility is located at So I I F. Street in Crreeie p <br />26'27.45" north, longitude: 104°45'33.25" west Sand and. Greeley (Weld County), Colorado 80631T Latitude: 40 <br />grave] mining takes place at this facility, however material is transported <br />from this facility and transported via conveyor belt to the Lafarge 35" plant. Groundwater is discharged from this site.