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TRAPPER MININD INCI <br /> P.O.Box 187 Craig,Colorado 81626 (970)824-4401 <br /> January 7,2019 RECEIVED <br /> Colorado Department of Public Health and Environment MAR 15 a , <br /> WQCD-PE-B2 <br /> 4300 Cherry Creek Dr.South DIVISION OF P' <br /> Denver,CO 80222-1530 MINING,,— <br /> Subject: <br /> ININGt, —Subject: Fourth Quarter 2018 Colorado Wastewater Discharge Monitoring Reports <br /> Permit No.CO-0032115 <br /> To whom it may concern: <br /> Enclosed are Trapper Mine's Fourth Quarter 2018 Colorado Wastewater Discharge Monitoring Reports for the <br /> period 10/1/18-12/31/18. During this quarter,three NPDES outfalls were active.Outfalls 001,002 and 011 <br /> discharged routinely throughout the quarter. Outfalls 008,009,017,018,019,020,021,022,023 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 /> 001 002 011 <br /> 3700 mg/L 2250 mg/L 2940 mg/L <br /> No exceedences of primary effluent limitations occurred at any outfall during the quarter. <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 precipitation <br /> measurements are recorded at 7:00 a.m. as well as daily maximum and minimum temperatures from the previous 24 <br /> hours. <br /> Trapper is required to maintain sediment levels in ponds at or below 60%of the pond volume. All outfalls have been <br /> properly maintained and no ponds exceeded the 60%threshold for sediment accumulation. All structures operated <br /> properly and were not compromised in any way. All other operations were properly conducted concerning the <br /> 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 /> ELECTRONICALLY SUBMITTED AND SIGNED THROUGH NetDMR <br /> Graham Roberts <br /> Environmental Engineer <br /> GCR[WATER\DMR Cover Letter\NetDMR Cover Letters\C00032115 DMRCov 2018 04.doe) <br /> Enclosure RECEIVED <br /> c Robin Reilley,CDRMS <br /> «C�grt09'2!Y�' <br /> I <br /> MAR 15 2019 <br /> DIVISION OF RECLAMATION <br /> MINING AND SAFETY <br />