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Permit Number COG-500000 <br />Facility Number CO.--00182 <br />CDR-NIS Permit No. M•1980-120 <br />Page 1 <br />Colorado Discharge Permit System Regulations <br />CER TIFICA TION <br />under <br />DISCHARGES ASSOCIATED WITH SAND AND GRAVEL HINING AND PROCL:SSING OPERATIONS <br />(AND OTHER NONMF_ TALLIC MINERALS EXCEPT FUEL) <br />Category 07, Subcategory IA, Current annual fce 5270 (CRS 25-8-502,) <br />This certification specifically authorizes Weld County Public Works 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-500182. <br />Perm ittee Contact <br />Weld County Public Works Greg Nelson, Mining Supervisor <br />P.O. Box 758 Phone: 970-356-4000 Ext 3750 <br />Greeley, CO 80632 <br />Phone: 970-304-6496 Fax: 970-304-6497 <br />Coverage Under This Renewal Permit <br />The Division has recently renewed this general permit. Pem-iittees who have been covered under the previous general permit and <br />reapplied in a timely manner will automatically be covered under this renewal general permit without lapse in permit coverage. <br />Pen-ait fees previously paid will also automatically be transferred to this renewal general permit. Permittees will need to comply <br />with the terms and conditions of the new permit beginning July 1, 2008. In the interim, the permittee shall comply with the terms <br />and conditions set in the previous certification. As before, only discharges to surface waters of the State are covered. The Colorado <br />Division of Reclamation, Mining, and Safety (CDRMS) has authority over discharges to ground water from sand and gravel mining <br />and processing operations. There have been several changes to the permit. Please see the rationale. <br />Project Name, Activity and Location <br />Koenig Pit -- The facility is located on WCR 20, approximately '/. mile west of WCR 25, south side of the road, near Fort Lupton <br />(Weld County), CO; Latitude: 40° 7.8" north, longitude: 104° 51.3' west. Construction sand and gravel is produced at this site. Only <br />ground water from the pit area is discharged from this site. <br />Outfillls 4atc?'?? <br />t 'Oita "Desc " t of <br />The discharge from a settling area in the southwest comer of the site, prior to Avg.= 6.48 NIGD <br />001A entering Meadow Island Ditch #1 *, which flows to the South Platte River_ <br />systems, conveyances, or other water courses under their jurisdiction <br />Effluent Parameters <br />The discharge goes to the South Platte River, within Segment Ola of the Middle South Platte River Sub-basin, South Platte River <br />Basin, found in the Classifications and Numeric Standards for the South Platte River Basin (Regulation No. 38; last update effective <br />March 1, 2008). Segment 01a is designated as Use Protected and is classified for the following beneficial uses: Aquatic Life, Class 2 <br />(Warm); Recreation, Class la; Water Supply; and Agriculture. <br />Limitations .nit, Purl LR. 1. h. C?,rt.cn•urrinrt .S.l G _ - <br />hf fluc•rt! / rmitutrons nnrl 111onttornt;Rulurrtmrru? /ut c'r ___ _-. __ <br />Prnametcr Alonirorim, Sa»rl)le <br />30 Dri' 7-1huv Daih Ratinnulc Fregiiencl' 7bpe, j <br />Max. <br />as. <br />(-.eneral Permit Rce uiremull t,---------- <br />Continuous) Recorder l <br />Flow, MGD Report NA Report Discharge Evaluation Instantaneous' In-situ <br />ISSt?F.ll: .RTNE 16.2008 EFFECTIVE: JiTLY 1.2008 EXPIRATION: JUNE 30.2013