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TRAPPER MINING INC. <br />P.O. Box 187 Craig, Colorado 81626 <br />April 27, 2016 <br />Colorado Department of Public Health and Environment RECEIVED <br />Water Quality Control Division 016 <br />WQCD-P-B2 NAY 2 <br />4300 Cherry Creek Dr. South <br />Denver, CO 80246-1530 ,,,J1 ;j,n of Reclamation, <br />w1u,1n9 &Safety <br />Subject: First Quarter 2016 Colorado Wastewater Discharge Monitoring Reports <br />Permit No. CO -0032115 <br />To Whom It May Concern: <br />(970)824-4401 <br />Enclosed are Trapper Mine's First Quarter 2016 Colorado Wastewater Discharge Monitoring Reports for the period <br />Ol/1/16-03/31/16. During this quarter, five NPDES outfalls were active. Outfalls 001 and 002 discharged routinely <br />throughout the quarter. Outfalls 011, 020 and 021 discharged in response to spring snowmelt occurring in late <br />February and March. Outfalls 008, 009, 017, 018, 019, 022, 023 and 024 did not discharge during the quarter. <br />Values reported on the enclosed DMRs represent the maximum (or minimum as applicable) monthly/daily values <br />generated at each 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 />021 <br />3670 mg/L <br />2570 mg/L <br />1780 mg/L <br />1060 mg/L <br />880 mg/L <br />Also enclosed are monthly NOAA weather summaries for the reporting period. The enclosed NOAA weather <br />summary reports show the temperatures and precipitation measurements for the period mentioned. Daily <br />precipitation measurements are recorded at 7:00 a.m. as well as daily maximum and minimum temperatures from the <br />previous 24 hours. <br />No exceedences of primary effluent limitations occurred at any outfall 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. <br />If you have any further questions or comments concerning the enclosed information, feel free to contact me. <br />Sincerely, <br />ELECTRONICALLY SUBMITTED AND SIGNED THROUGH NetDMR <br />Graham Roberts <br />Environmental Engineer <br />GCR [WATER\DMR Cover Letter\NetDMR Cover Letters\C00032115_DMRCov_2016_0 Ldoc] <br />Enclosure <br />c Tabetha Lynch, CDRMS <br />File 109.2.7 <br />