2010-10-19_HYDROLOGY - C1981010 - Laserfiche WebLink

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c 1 a 8l-DlD TRAPPER MININQ INC. October 12, 2010 CERTIFIED ,01iVED Ms. Carla Lenkey Colorado Department of Public Health and Environment OCT 19 2010 WQCD-PE-132 ?w^n 4300 Cherry Creek Dr. South Divicloll vl Denver, CO 80222-1530 Mining and S4?Y Subject: Third Quarter 2010 Colorado Wastewater Discharge Monitoring Reports Permit No. CO-0032115 Dear Ms. Lenkey: Enclosed are Trapper Mine's Third Quarter 2010 Colorado Wastewater Discharge Monitoring Reports for the period 07/l/10-09/30/10. During this quarter, two NPDES outfalls were active. Outfalls 001 and 002 discharged routinely throughout the quarter. Outfalls 005, 008, 009, 011, 012, 013, 014, 015, 016, 018, 017, 019, 020, 021, 022, 023 and 024 did not discharge during the quarter. Values reported on the enclosed DMRs represent the maximum (or minimum as applicable) monthly/daily values generated at each outfall during the quarter. No exceedances of primary effluent limitations occurred during this quarter. Also enclosed are monthly NOAA weather summaries for the reporting period and WET test report forms as applicable. No active outfalls required WET Testing during this period. Trapper is required to maintain sediment levels in ponds at or below 60% of the pond volume. Outfall 017, Structure #02 has exceeded 60% sediment levels, but did not discharge during the quarter. It will be cleaned by the end of the calendar year. All other outfalls have been properly maintained and did not exceed the 60% threshold for sediment accumulation. All structures operated properly and were not compromised in any way. All other operations were properly conducted concerning the sediment control structures at Trapper Mine. Please contact me if you have any questions regarding the enclosed information. Sincerely, ,n L Graham Roberts EHS Specialist GCR (WATER/DMR/Quarterly Letter/3rd Quarter 20101 Enclosure C Rub Zuber, CDRMS File 109.2.7 P.O. Box 187 Craig, Colorado 81626 (970) 824-4401