Laserfiche WebLink
�p • CO�� <br />o <br />1876 <br />Colorado Department <br />of Public Health <br />and Environment <br />CERTIFICATION TO DISCHARGE UNDER CDPS GENERAL PERMIT COROaonoo <br />STORMWATER ASSOCIATED WITH <br />METAL MINING OPERATIONS AND MINE -WASTE REMEDIATION <br />Certification Number: COR040281 <br />This Certification to Discharge specifically authorizes: <br />New West Reclamation LLC <br />to discharge stormwater from the facility identified as <br />Large Group Waste Dumps <br />to:Evans, South Evans, and Stray Horse Gulches - Arkansas River <br />Facilitv Located at: i CR 1, 3b, and 2b Leadville Lake County, C080461 I <br />Center Point Latitude 39.24947 Longitude - 106.24563 1 <br />All discharges must comply with the lawful requirements of federal agencies municipalities, counties, drainage districts and other <br />local agencies regarding any discharges to storm drain systems, conveyances, or other water courses under their jurisdiction. <br />Monitoring Requirements <br />1. .]IlC-]IJGt.It tl ucita, .'p <br />_- <br />Parameter <br />Units <br />Site- specific <br />Benchmark Values <br />Rationale <br />Monitoring <br />Frequency <br />Sample <br />"type <br />Acute Chronic <br />Frequency <br />y, <br />Total Suspended Solids (TSS) <br />mg/L <br />EPA <br />100 Benchmarks <br />Zinc, (potentially dissolved) <br />ug/L <br />148 108 <br />TMDL <br />Quarterly <br />Grab <br />o....I .,.,A Dfle <br />L. DC(lU❑I1011% II lulif kvi l t is lVt <br />_- <br />Sample <br />Parameter <br />Units <br />Benchmark Values I Rationale <br />Frequency <br />y, <br />Total Suspended Solids (TSS) <br />mg/L <br />EPA <br />100 Benchmarks <br />Quarterly <br />Grab <br />Turbidity <br />NTU <br />50 EPA <br />Benchmarks <br />Quarterly <br />Grab <br />pH <br />s,u. <br />6.0 -9.0 Benchmarks <br />Quarterly <br />Grab <br />Total Antimony <br />mg/L <br />EPA <br />0.64 Benchmarks <br />Quarterly <br />Grab <br />Total Arsenic <br />mg/L <br />0.15 Benchmarks <br />Quarterly <br />Grab <br />Total Beryllium <br />mg/L <br />EPA <br />0.13 Benchmarks <br />Quarterly <br />Grab <br />Total Cadmium <br />mg/L <br />EPA <br />0.0018 Bench arks <br />Quarterly <br />Grab <br />Total Copper <br />mg /L <br />EPA <br />0.0123 Benchmarks <br />Quarterly <br />Grab <br />Total Iron <br />mg/L <br />1.0 1 Benchmarks <br />Quarterly <br />Grab <br />Total Lead <br />mg/L <br />0.069 ! Ben hmarks <br />Quarterly <br />Grab <br />Total Mercury <br />mg /L <br />EPA <br />0.0014 ! Ben hmarks <br />Quarterly <br />Grab <br />Total Nickel <br />mg /L <br />0.42 I Benchmarks <br />Quarterly <br />Grab <br />Total Selenium <br />mg/L <br />EPA <br />0.005 Benchmarks <br />Quarterly <br />Grab <br />Total Silver <br />mg /L <br />EPA <br />0.0030 I Benchmarks <br />Quarterly <br />Grab <br />Total Zinc <br />mg/L <br />EPA <br />0.11 Benchmarks <br />Quarterly <br />Grab <br />