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• A� <br />P.O. Box 187 <br />CERTIFIED <br />TRAPPSR MINING INC. <br />Craig, Colorado 81626 <br />January 21, 2016 <br />(970) 824-4401 <br />RECEIVED <br />JAN 2 8 2016 <br />Colorado Department of Public Health and Environment DIVISION OF RECLAMATION <br />WQCD-PE-B2 MINING AND SAFETY <br />4300 Cherry Creek Dr. South <br />Denver, CO 80222-1530 <br />Subject: Fourth Quarter 2015 Colorado Wastewater Discharge Monitoring Reports <br />Permit No. CO -0032115 <br />To whom it may concern: <br />Enclosed are Trapper Mine's Fourth Quarter 2015 Colorado Wastewater Discharge Monitoring Reports for the <br />period 10/1/15-12/31/15. During this quarter, two NPDES outfalls were active. Outfalls 001 and 002 discharged <br />routinely throughout the quarter. Outfalls 008, 009, 011, 017, 018, 019, 020, 021, 022, 023 and 024 did not <br />discharge during the quarter. Values reported on the enclosed DMRs represent the maximum (or minimum as <br />applicable) monthly/daily values generated at each outfall during the quarter. <br />The TDS is reportable on a quarterly basis per the permit. The TDS values are as follows for each active outfall: <br />001 <br />002 <br />3240 mg/L <br />2360 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. <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 />Sincerel , <br />Graham Roberts <br />Environmental Engineer <br />GCR [WATER/DMWouarterly Letter/4th Quarter 2015) <br />Enclosure <br />c <br />File 109 2.7 <br />