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Outfali <br />Parameter Name <br />Mon Pd <br />Start Date <br />Mon Pd <br />End Date <br />Statistical Base <br />DMR <br />Value <br />UOM <br />Limit <br />Value <br />% <br />Exceed <br />012A <br />Solids, total suspended <br />10/1/11 <br />10/31/11 <br />30DA AVG <br />70 <br />mg /L <br />35. <br />100 <br />John W. Hickenlooper, Governor <br />Christopher E. Urbina, MD, MPH <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 />http://www.cdphe.state.co.us <br />Laboratory Services Division <br />8100 Lowry Blvd. <br />Denver, Colorado 80230 -6928 <br />(303) 692-3090 <br />Re °1e.D <br />James Cooper APR 1 0 2012 <br />Oxbow Mining LLC <br />PO Box 535 <br />Mining and Safety <br />Somerset CO 81434 -0535 <br />Sincerely, <br />Divlstol I <br />Kelly Morgan <br />Enforcement Specialist <br />Water Pollution Control Compliance & Enforcement <br />WATER QUALITY CONTROL DIVISION <br />xc: Gunnison County Local Health Department <br />MS -3 Files <br />STATE OF COLORADO <br />( r <br />t a� I • <br />I ' <br />i � <br />,I APR 0 9 2012 <br />I <br />Colorado Department <br />of Public Health <br />and Environment <br />April 3, 2012 <br />COMPLIANCE ADVISORY — REPORTED EFFLUENT VIOLATION SANBORN CRK & ELK CRK <br />MINES, C00000132 <br />Dear Sir or Madam: <br />Oxbow Mining LLC is subject to the Colorado Discharge Permit System, Permit No. C00000132 (the "Permit "). The <br />Permit authorizes Oxbow Mining LLC to discharge treated wastewater subject to the specific effluent limitations and <br />other conditions of the Permit. Section 61.8, 5 CCR 1002 -61, requires a permittee to comply with all of the terms and <br />conditions of the permit. <br />The Water Quality Control Division (the "Division ") has received your Discharge Monitoring Report(s) ( "DMR ") for <br />the following monitoring period(s). The self - monitoring data you have provided on your DMR(s) indicates <br />noncompliance with the discharge permit condition(s) as indicated below: <br />It is imperative that the necessary steps be taken to maintain compliance with permit conditions at all times. Please <br />reply to this Division, in writing, within fourteen (14) calendar days of the date of this letter as to what action and <br />measures you have or will be taking to abate this condition. <br />This Compliance Advisory is intended to advise you of violations of the Colorado Water Quality Control Act, its <br />implementing regulations, and the Permit, so that you may take appropriate steps to correct our records (if applicable), <br />or to avoid or mitigate fonnal enforcement action. This Compliance Advisory does not constitute a Notice of Violation <br />or Cease and Desist Order and is not subject to appeal. However, the issuance of this Compliance Advisory does not <br />limit or preclude the Division from pursuing its enforcement options concerning the above violation(s). The Division <br />will evaluate the facts associated with the above - described violations and if a formal enforcement action is deemed <br />necessary, you may be issued a Notice of Violation/Cease and Desist Order that may include the assessment of <br />penalties. <br />If you have any questions regarding this matter, please contact me at (303) 692 -3634 or by electronic mail at <br />kelly.morgan@state.co.us <br />ec: Engineering Services Section, WQCD <br />