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HomeMy WebLinkAboutNCG200513_Monitoring Report_20200124January 16, 2020 1wScrop Metal Buyers and Recyclers RECEIVEJ) co Cosa kJVCJWt 8' 40oresOQU81%, Section CERTIFIED MAIL RETURN RECEIPT REQUESTED 7018 3090 00013855 9649 Mr. James Moore NCDEQ-Regional Office Engineer NC Dept. of Energy, Minerals and Land Resources Mooresville Regional Office 610 East Center Avenue, Suite 301 Mooresville, NC 28115 RE: General Stormwater Permit Monthly Sampling Event (Nov. and Dec. 2019) Certificate of Coverage No. NCG200513 Dear Mr. Moore: With this submittal, the United Scrap Metal — Charlotte Facility (USM) is providing the above referenced monthly sampling results. Monthly monitoring is required for copper and zinc for all three outfalls. At a minimum, USM will sample all outfalls for both copper and zinc during the month of January 2020 and will continue BMP efforts to reduce concentrations of copper and zinc in stormwater runoff. The December 2019 sampling event was the fourth consecutive month in which the concentration of zinc in Outfall 002 exceeded the benchmark. Therefore, it is now subject to Tier III requirements. Tiered activities are in process for all drainage areas at the site in an effort to improve the quality of SW runoff. Activities being evaluated include Biochar Basic Filtration media catch basin inserts and additional Filtiexx Envirosoxx installations upgradient from stormwater outfalls. Should you have any questions or comments, please do not hesitate to contact me at 804-621- 7000 or mobile phone 815-693-5052. Sincerely, UNITED SCRAP METAL, INC. John Dergo General Manager Enclosures cc: Adam Wilk— USMNational Compliance Manager Tim Monroe — Leaf Environmental & Engineering, P. C. Stormwater Quantitative Monitoring -Analytical Results (NPDES General Permit COC NCG200513) United Scrap Metal, Inc. 9925 Brookford Street, Charlotte, NC 28273 Permit Sample Event Number or Monthly Sampling Event (MSE) Sampling Date Total Suspended Solids Chemical Oxygen Demand Oil & Grease Copper Lead N� 4a. (mg/1) (mg/1) (mg/1) (mg/1) (mg/1) (mg 3 6/15/2016 < 6.2 36.0 66 0.0131 < 0.0050 0.880 4 11 /29/2016 < 2.5 < 25.0 < 5.0 < 0.0050 < 0.0050 < 0.01 5 4/24/2017 6.6 < 25.0 < 5.0 0.0098 < 0.0050 0.122 6 12/6/2017 4.8 < 25.0 < 5.0 0.0093 < 0.0050 0,485 7 6/12/2018 20.3 < 25.0 < 5.0 0.0319 < 0.0050 <0.0050 1 4 0.103 MSE MSE 7/16/2018 9/17/2018 ND ND 0.581 0.0079 8 10/11/2018 5.0 MSE 11/24/2018 0.0071 < 0.0050 0.076 Outfall 001 MSE 12/14/2018 0.0087 < 0.0050 0.0889 MSE 1/24/2019 0.0061 <0.0050 0.457 9 6/18/2019 < 2.6 < 25.0 < 5.0 0.035 < 0.0050 0.516 MSE Jul. 2019 No Sample I No Sample MSE Aug. 2019 NO FLOW NO FLOW MSE Sep. 2019 NO FLOW NO FLOW 10 10/16/2019 0.0158 0.434 MSE Nov. 2019 NO FLOW NO FLOW MSE 12/13/2019 3.3 < 25.0 < 4.8 0.0114 < 0.0050 0.0838 3 6/15/2016 < 3.2 < 25.0 < 5.3 0.0120 < 0.0050 0.760 4 11 /29/2016 < 2.5 < 25.0 < 5.0 < 0.005 < 0.0050 < 0.01 5 4/24/2017 6.8 < 25.0 < 5.0 0.010 < 0.0050 0.130 6 12/6/2017 5.0 < 25.0 < 5.0 0.0116 < 0.0050 0.510 7 6/12/2018 11.5 < 25.0 NO < 5.0 ND 0.0327 6 0 0.0071 < 0.0050 0.0176 <0.0050 1 1 0.116 MSE 7/16/2018 3.3 MSE 9/17/2018 8 10/11/2018 MSE 11/24/2018 0.0053 <0.0050 0.0482 Outfall 002 MSE 12/14/2018 0.0070 < 0.0050 0.0928 MSE 1/24/2019 0.0130 < 0.0050 0.493 9 6/18/2019 6.3 < 25.0 < 5.0 0.0340 < 0.0050 0.521 MSE Jul. 2019 No Sample No Sample MSE Aug. 2019 NO FLOW NO FLOW MSE Sep. 2019 NO FLOW NO FLOW 10 10/16/2019 0.0133 0.366 MSE Nov. 2019 NO FLOW NO FLOW MSE 12/13/2019 10.2 < 25.0 < 4.8 � < 0.0050 3 6/15/2016 < 2.6 < 25.0 < 5.3 0.0113 < 0.0050 0.708 4 11 /29/2016 < 2.5 < 25.0 < 5.0 < 0.005 < 0.0050 < 0.01 5 4/24/2017 4.2 < 25.0 < 5.0 0.014 < 0.0050 0.128 6 12/6/2017 5.3 < 25.0 < 5.0 0.0124 < 0.0050 0,W 7 6/12/2018 38.0 < 25.0 < 5.0 0 6 < 0.0050 1 MSE 7/16/2018 0.0132 0 MSE 9/17/2018 • • 1 8 MSE 10/11/2018 11/24/2018 9.5 35.9 NO 0.0 99 0.0065 1 - 0.0833 MSE 12/14/2018 0.0055 0.0836 Outfall003 MSE 1/24/2019 <0.0050 0.0082 0.0434 0.0700 MSE 2/19/2019 MSE 3/25/2019 < 0.0050 0.5470 MSE April 2019 MSE May 2019 • • __ 9 6/18/2019 < 2.7 < 25.0 < 5.0 < 0.0050 <0.0050 NO FLOW 0.6660 0.816_ NO FLOW MSE 7/23/2019 MSE Aug. 2019 MSE Sep. 2019 NO FLOW NO FLOW 10 10/16/2019 Nov. 2019 � NO FLOW NO FLOW MSE MSE 12/13/2019 4.9 < 25.0 < 4.8 � < 0.0050 1 Benchmark 100 120 15 0.010 0.075 0.126 x.xxx x.xxx Mzl�requirements. 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