8606_SurryCounty14DayNotification_MSWLF_GWMR_20180410

January 10, 2018
Ms. Jaclynne Drummond
Solid Waste Section (SWS)
Division of Waste Management
North Carolina Department of Environmental Quality (NCDEQ)
2090 US Highway 70
Swannanoa, NC 28778
Re: 14-Day Notification of an Exceedance of Benzene in MW-9S
Surry County Subtitle D Lined MSWLF
Event Date: December 12, 2017
Laboratory Report Date: January 9, 2018
Permit No. 86-06
Dear Ms. Drummond:
A sample collected from MW-9S during the latest semi-annual water quality monitoring event performed at
the Surry County Subtitle D Lined MSWLF contained a concentration of benzene (1.1 μg/L) above the 2L
groundwater protection standard (1.0 μg/L). Benzene was also detected in sample MW-9S below the 2L
Standard during previous events. Since this is the first time that benzene has been detected above the 2L
Standard a 14-Day notification form and a table summarizing the detections in MW-9S is attached. The lined
facility is already under assessment monitoring in response to detections of vinyl chloride at MW-9S in excess
of the 2L Standard. The preliminary release mechanism of the VOCs is believed to be a release from the lined
landfill with a transport mechanism of either leachate and/or landfill gas. The full Semi-Annual Monitoring
Report for this Fall 2017 event is planned to be submitted soon and assessment monitoring will continue. If
you have any questions or concerns regarding this project please contact us by phone at [phone] or by
email at [e-mail].
Sincerely,
MUNICIPAL ENGINEERING SERVICES CO., P.A.
Jonathan Pfohl
Environmental Specialist
cc: Dennis Bledsoe
Surry County Public Works Director

Table 1
Groundwater Sample MW-9S Detections
December 12, 2017
MW-9S
S
12/12/2017
Barium, total 2.5 100 700 2000 97.9 J
Cadmium, total 0.5 1 2 5 2.4 (N)
Chromium, total 2.5 10 10 100 4.8 J
Cobalt, total 2.5 10 1 NE 108 (N)
Copper, total 2.5 10 1000 1300 3.6 J
Nickel, total 2.5 50 100 NE 15 J
Thallium, total 0.02 5.5 0.28 2 0.27 J
Zinc, total 5 10 1000 NE 9.6 J
Benzene 0.25 1 1 5 1.1 (L)
Trichloroethene 0.49 1 3 5 1.2
trans-1,2-Dichloroethene 0.46 5 100 100 1.2 J
cis-1,2-Dichloroethene 0.66 5 70 70 7.6
Vinyl chloride 0.62 1 0.03 2 1.4 (L)
Red Bold Above Established 2L/GWP Std.
MDL = Method Detection Limit, SWSL = Solid Waste Section Limit, 2L/GWP Standard = NC 2L and IMAC Standards adopted by SWS,
MCL = Maximum Contaminant Level for Drinking Water
J = "J-qualified". Concentration detected between MDL and SWSL. Considered estimated value
(N) Preliminary source is believed to be Natural originating from erosion of natural deposits. Source not anthropogenic.
(L) Prelilminary source is believed to be anthropogenic with leachate or landfill gas as transport mechanism
A definitive source of the detections was not determined as part of this report.
S = Sentinal Well Sample
2L/GWP
Std MCL
Yellow Highlighted Above Established Federal MCL Drinking Water Std.
Units ug/L, Blank cells means Not Detected, -- means not tested
Metals (Appendix I)
VOCs (Appendix I)
Parameter Name MDL SWSL
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