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STATE OF COLORADO <br />John W. Hickenlooper, Governor <br />Larry Wolk, MD, MSPH <br />Executive Director and Chief Medical Officer <br />Dedicated to protecting and improving the health and environment of the people of Colorado <br />4300 Cherry Creek Dr. S. <br />Denver, Colorado 80246 -1530 <br />Phone (303) 692.2000 <br />Located in Glendale. Colorado <br />www.colorado.gov/cdphe <br />Thomas Wiens, CEO <br />New West Reclamation LLC <br />PO Box 1798 <br />Leadville, CO 80461 <br />DATE: July 22, 2014 <br />Laboratory Services Division <br />8100 Lowry Blvd <br />Denver, Colorado 80230 -6928 <br />(303) 692 -3090 <br />MEMO RE: Certification, Colorado Discharge Permit System <br />General Permit No. COR040000, Certification Number: COR040216i <br />New West Reclamation LLC - Large Group Waste Dumps <br />of corn <br />�e <br />x1878 <br />Colorado Department <br />of Public Health <br />and Environment <br />DIVISION CONTACTS <br />Jennifer Charles Environmental Protection Specialist 303 - 692 -6430 <br />Karen Harford, Admin, at 303 - 691 -4019 Loretta Houk Admin 303- 692 -3531 Debbie Jessop Tech IV 303 -692 -3590 <br />ATTACHMENTS; <br />Certification <br />General Permit Metal Mining Operations and Mine -Waste Remediation <br />Annual Report <br />Blank Discharge Monitoring Report (DMR) Form <br />The Water Quality Control Division (the Division) has reviewed the application submitted for the Large Group Waste Dumps facility (the <br />facility) and determined that it qualifies for coverage under the CDPS General Permit for Stormwater Discharges Associated with Metal <br />Mining Operations and Mine -Waste Remediation (the stormwater permit). <br />DISCHARGE SPECIFIC INFORMATION <br />The discharge is to Evans, South Evans, and Stray Horse Gulches within Segment 07 of the Upper Arkansas River Sub - basin, <br />Arkansas basin River Basin, found in the Classifications and Numeric Standards for the Arkansas basin River Basin (Regulation No. <br />32) (COARUA07). Segment 07 is Reviewable, and is classified for the following beneficial uses: Aquatic Life, Class 1 Cold; <br />Recreation Class E; Water Supply; and Agriculture. <br />BASIS FOR STORMWATER DISCHARGE MONITORING <br />The Division has determined that the practice -based effluent limits (i.e., SWMP and BMP requirements) in the stormwater <br />discharge permit are adequate to protect all water quality standards and meet any TMDL requirements applicable to stormwater <br />discharges from this facility. <br />However, as allowed by the stormwater discharge permit, the Division requires that the permittee sample stormwater discharges <br />from the industrial activities conducted at the facility to: 1) measure the effectiveness of the BMPs implemented at the facility <br />with respect to removing pollutants from the discharge or meeting any applicable TMDL requirements and, 2) establish whether <br />additional BMPs are required for any other pollutants for which the receiving water is impaired. The enclosed permit certification <br />provides the sampling parameters for stormwater discharges from the facility. <br />if information becomes available that indicates the stormwater discharge permit does not protect all water quality standards or <br />meet applicable TMDL requirements, the Division may require an individual or alternate general permit coverage. The Division <br />will use results from the stormwater discharge monitoring as part of this determination. Rpfer to the next section below for <br />additional information. <br />BASIS FOR SITE- SPECIFIC PARAMETERS <br />The Division has developed and received EPA approval for a TMDL that addresses dissolved Zinc for Segment 07 of the Upper <br />Arkansas River Sub - basin, Arkansas basin. Because this parameter has the potential to be in stormwater discharges from metal <br />