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TRAPPER MINING INC. <br />P.O. Box 187 Craig, Colorado 81626 (970) 824-4401 <br />October 15, 2015 <br />CERTIFIED R���IV <br />ED <br />OCf 2 7 ZM5 <br />Colorado Department of Public Health and EnvironmentpF RECLAMATION <br />WQCD-PE-132 °l'"M� lNG M[) Sgt <br />4300 Cherry Creek Dr. South <br />Denver, CO 80222-1530 <br />Subject: Third Quarter 2015 Colorado Wastewater Discharge Monitoring Reports <br />Permit No. CO -0032115 <br />To whom it may concern: <br />Enclosed are Trapper Mine's Third Quarter 2015 Colorado Wastewater Discharge Monitoring Reports for the period <br />07/1/15-09/30/15. During this quarter, four NPDES outfalls were active. Outfalls 001 and 002 discharged routinely <br />throughout the quarter. Outfall 011 and 020 discharged in early July in response to a heavy precipitation event. <br />Outfalls 008, 009, 017, 018, 019, 021, 022, 023 and 024 did not discharge during the quarter. Values reported on <br />the enclosed DMRs represent the maximum (or minimum as applicable) monthly/daily values generated at each <br />outfall during the quarter. <br />The TDS is reportable on a quarterly basis per our permit. The TDS values are as follows for each active outfall: <br />001 <br />002 <br />011 <br />020 <br />3410 mg/L <br />1850 mg/L <br />2310 mg/L <br />1150 mg/L <br />No exceedances of primary effluent limitations occurred during this quarter. <br />Also enclosed are monthly NOAA weather summaries for the reporting period and WET test report forms as <br />applicable. No outfalls were sampled for WET analyses during the quarter. <br />Trapper is required to maintain sediment levels in ponds at or below 60% of the pond volume. All outfalls have <br />been properly maintained and no ponds exceeded the 60% threshold for sediment accumulation. All structures <br />operated properly and were not compromised in any way. All other operations were properly conducted concerning <br />the sediment control structures at Trapper Mine. <br />Please contact me if you have any questions regarding the enclosed information, 970-826-6143. <br />Sincerely, <br />zkL Vim/ <br />Graham Roberts <br />Environmental Engineer <br />6CR 1WATEFUDMRlQuarterly Letter/3rd Quarter 20151 <br />Enclosure <br />c Tabetha Lynch, CDRMS <br />File 109.2.7 <br />