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HomeMy WebLinkAbout04005_State Farm Rd_Sample Results_20171222Seramur & Associates, PC 165 Knoll Drive Boone, NC 28607 Phone: 828.264.0289 seramur@icloud.com Cell: 828.773.0499 December 22, 2017 Mr. Tony Duque NC DEQ, DWM 401 Oberlin Road, Suite 150 Raleigh, NC 27605 Re: Retention Pond Water Sample Results for Brownfields Permit Glen Wilde, LLC Property, State Farm Road, Boone, NC 28607 Watauga County Dear Mr. Duque: On November 30, 2017, Seramur & Associates personnel visited the Glen Wilde, LLC site to collect a surface water sample from the retention pond at the facility. Water was present in the retention pond off the northwest corner of the apartment buildings. One surface water sample was collected from the pond. The sample was collected in laboratory clean jars, sealed with Teflon lined lids, labeled and placed on ice. A chain of custody was initiated. Samples were shipped to Prism Laboratories in Charlotte, NC and analyzed for volatile organic compounds using EPA Method 6200B. Acetone was detected in the sample at a concentration on 5.3 micrograms per liter. This is an estimated concentration as it was detected below the reporting limit (See Table B-4 and Lab Results). There is no 2B Surface Water Standard listed for acetone and this concentration is well below the 2L Groundwater Standard of 6,000 micrograms per liter. No other organic compounds were detected in the surface water sample collected from the retention pond. The laboratory reports and chain of custody are attached. We appreciate the opportunity to assist you with this monitoring event. If you have any questions, please contact me at (828) 264-0289. Sincerely, Keith C. Seramur, P.G. Consulting Geologist Table B-4: Summary of Groundwater and Surface Water Sampling Results Revision Date: 12/15/17 Incident Name: Glen Wilde Facility ID#: N/A J = Detected below reporting limit. Estimated quantity. Analytical Method (e.g., VOC by SM6000B)  SM6200B Contaminant of Concern  Acetone Well or SW ID Date Collected (mm/dd/yy) Sample ID Incident Phase SW-1 11/30/17 SW-1 Annual Sampling Event 5.3 J Minimum Reporting Limit (ug/l) 10 2L Standard (ug/l) 6,000 GCL (ug/l) 6,000,000 NC 2B Standard or EPA National Criteria (ug/l) None Page 1 of 12 Page 2 of 12 Page 3 of 12 Page 4 of 12 Page 5 of 12 Page 6 of 12 Page 7 of 12 Page 8 of 12 Page 9 of 12 Page 10 of 12 Page 11 of 12 Page 12 of 12