2802_DareCountyMSWLFClosed_GWMR_20171114

Dare County
Closed East Lake Landfill
Facility Permit Number
2802-MSWLF-1982
Semi-Annual Sampling Report
(August 2017 Sampling Event)
Report
Prepared November 2017

5400 Glenwood Avenue, Suite 400
Raleigh, North Carolina 27612
tel: [phone]
fax: [phone]

November 14, 2017

Ms. Jaclynne Drummond
North Carolina Department of
Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. 70 Highway
Swannanoa, North Carolina 28778

Subject: August 2017 Semi-Annual Groundwater Sampling Report
Closed East Lake Landfill, Dare County, North Carolina
Facility Permit No. 2802-MSWLF-1982
Dear Ms. Drummond:
CDM Smith Inc. (CDM Smith), on behalf of Dare County, is submitting an electronic copy of the August
2017 semi-annual sampling event report. This letter report presents the results of the most recent
semi-annual sampling event that was completed at the Closed East Lake Landfill and constitutes the
second semi-annual sampling event for 2017. The groundwater monitoring network consists of 10
wells (i.e. Well #1s, #1d, #2s, #2d, #3s, #3d, #4s, #4d, #5s, and #5d) and a downstream surface water
sample location. Additional samples were collected from Well #6s, #6d, and #7s during the August
2017 sampling event to monitor the horizontal and vertical extent of benzene in groundwater. Field
activities and sampling results for all wells and the surface water sample are discussed below.
Field Activities
Groundwater and surface water samples from the Closed East Lake Landfill were collected on August
28, 2017, by Environment One, Inc. (Environment One). Monitoring wells and the surface water
sample location are shown on Figure 1. Well construction details for the monitoring wells are
summarized in Table 1.
Groundwater elevations were measured at each well prior to sampling using an electronic water level
indicator with an accuracy of 0.01 feet. These groundwater elevations as presented in Table 2 were
used to construct a potentiometric surface map for this sampling event. The potentiometric contours
are presented on Figure 1.
Each monitoring well was measured for pH, conductivity, temperature, turbidity, dissolved oxygen,
and oxidation-reduction potential (ORP) prior to sampling. The same water quality parameters were

Ms. Jaclynne Drummond
November 14, 2017
Page 2

measured at the surface water sample location with the exception of ORP. The water quality
parameters at the time samples were collected are presented in Table 3.
Sampling Results
Environment One located in Greenville, North Carolina, analyzed the groundwater and surface water
samples for North Carolina Appendix I volatile organic compounds (VOCs) by U.S. Environmental
Protection Agency (EPA) Method 8260B, metals by EPA Method 200.8, and chloride and sulfate by
Standard Method (SM) 4500. Additional samples were collected from the shallow monitoring wells
and analyzed for total suspended solids by SM 2540D.
In accordance with Solid Waste Section guidelines, the analytical results were reported to the
laboratory specific method detection limit (MDL) and are quantifiable at or below Solid Waste Section
Limits (SWSLs). All monitoring wells and the surface water location for the Closed East Lake Landfill
had detections of analytes above the MDL but below SWSLs. These detections were qualified with “J”
flags, which indicate an estimated concentration.
The following list presents the analytes detected above the MDL at each sample location. No “J” flag
detections are provided. Underlined analytes exceeded the 15A NCAC 02L .0202 (NC 2L) Groundwater
Quality Standard, Groundwater Protection Standard, or the 15A NCAC 02B Surface Water Quality
Standard for Class C Waters. A complete summary of all detected and estimated concentrations from
August 2011 to August 2017 is presented in Table 4. The historical data is not continuous, but data for
select years is provided. The laboratory analytical data report is provided in Appendix A.
Well #1s
General Chemistry: Chloride, Sulfate
Metals: Arsenic
Volatile Organic Compounds: None Detected
Well #1d
General Chemistry: Chloride
Metals: Copper, Zinc
Volatile Organic Compounds: None Detected
Well #2s
General Chemistry: Chloride
Metals: Arsenic, Barium, Zinc
Volatile Organic Compounds: Chlorobenzene, 1,4-Dichlorobenzene

Ms. Jaclynne Drummond
November 14, 2017
Page 3

Well #2d
General Chemistry: Chloride
Metals: Copper, Zinc
Volatile Organic Compounds: None Detected
Well #3s
General Chemistry: Chloride
Metals: Barium, Zinc
Volatile Organic Compounds: None Detected

Well #3d
General Chemistry: Chloride
Metals: Copper, Lead, Zinc
Volatile Organic Compounds: None Detected
Well #4s
General Chemistry: Chloride
Metals: Barium, Zinc
Volatile Organic Compounds: None Detected
Well #4d
General Chemistry: Chloride
Metals: Copper, Zinc
Volatile Organic Compounds: None Detected
Well #5s
General Chemistry: Chloride
Metals: Arsenic, Barium, Zinc
Volatile Organic Compounds: None Detected
Well #5d
General Chemistry: Chloride
Metals: Zinc
Volatile Organic Compounds: None Detected
Well #6s
General Chemistry: Chloride
Metals: Arsenic, Barium
Volatile Organic Compounds: Benzene, Chlorobenzene, 1,4-Dichlorobenzene

Ms. Jaclynne Drummond
November 14, 2017
Page 4

Well #6d
General Chemistry: Chloride
Metals: None Detected
Volatile Organic Compounds: None Detected
Well #7s
General Chemistry: Chloride
Metals: None Detected
Volatile Organic Compounds: None Detected
Downstream
General Chemistry: Chloride
Metals: None Detected
Volatile Organic Compounds: None Detected
“J” flags were not included in the previous list, but several locations had “J” flag detections that
exceeded the standards. The “J” flag constituents above the standards along with their locations are
listed below.
Cobalt: Well #2s, #4s, and #5s
Vanadium: Well #1s, #1d, #2s, #2d, #3s, #3d, #4s, #4d, #5s, #5d, #6s, #6d, and #7s
Equipment and trip blanks were analyzed for quality control. A duplicate sample was also collected for
quality control. No VOCs were detected in the trip blank. The equipment blank had estimated
detections of arsenic and nickel below the NC 2L Standard. A duplicate sampled was collected from
Well #7s and had analytes detected at concentrations similar to the parent sample.
VOCs detected in samples collected from Well #2s during the August 2017 sampling event were below
the NC 2L Standards. Benzene was detected slightly above the NC 2L Standard in Well #2s from August
2007 (2.50 parts per billion (ppb)) to August 2013 (1.10 ppb). Benzene has not been detected above
the NC 2L Standard in Well #2s since the February 2014 sampling event and was not detected about
the MDL during the August 2017 sampling event. Carbon disulfide, chlorobenzene, and 1,4-
dichlorobenzene have also been detected in Well #2s with a majority of the detections below the NC
2L Standards. VOC concentrations at Well #2s show a decreasing trend based on the analytical data.
Benzene was detected slightly above the NC 2L Standard (1 ppb) at 1.40 ppb in samples collected from
Well #6s during the August 2017 sampling event. Chlorobenzene and 1,4-dichlorobenzene were also
detected in Well #6s below their respective NC 2L Standard. These analytes have never been detected
above their respective NC 2L Standard. CDM Smith will submit a work plan to the Solid Waste Section

Ms. Jaclynne Drummond
November 14, 2017
Page 5

to evaluate if the VOC detections in Wells #2s and #6s are from an offsite source, based on the
direction of groundwater flow across the landfill (see Figure 1).
Metals and general chemistry analytes exceeding the standards are likely naturally occurring based on
detections in the background monitoring well (i.e. Well #1s). Elevated turbidity at the time of sample
collection may also influence metal concentrations.
The semi-annual groundwater monitoring program will be continued by Dare County. The first
semi-annual sampling event for 2018 is tentatively scheduled for February. If you have any questions
or require further explanation, please do not hesitate to call me at [phone].
Very truly yours,

Mathew F. Colone, P.G.
CDM Smith Inc.
cc: Edward Mann, Dare County
Table 1
Monitoring Well Construction Summary
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
2802-MSWLF-1982 Well #1s 4-Dec-91 Mud Rotary 786,899.90 2,924,947.09 Surficial 16.0 6.0-16.0 4.5-16.0 2.5-4.5 2.0
2802-MSWLF-1982 Wells #1d 4-Dec-91 Mud Rotary 786,894.30 2,924,945.12 Surficial 54.0 44.0-54.0 35.5-54.0 33.5-35.5 2.0
2802-MSWLF-1982 Wells #2s 5-Dec-91 Mud Rotary 786,542.89 2,924,342.14 Surficial 12.5 2.5-12.5 2.5-12.5 1.5-2.5 2.0
2802-MSWLF-1982 Wells #2d 5-Dec-91 Mud Rotary 786,544.47 2,924,335.26 Surficial 46.5 36.5-46.5 33.5-46.5 31.5-33.5 2.0
2802-MSWLF-1982 Wells #3s 11-Dec-91 Mud Rotary 787,095.35 2,923,655.58 Surficial 13.0 3.0-13.0 2.0-13.0 0-2.0 2.0
2802-MSWLF-1982 Wells #3d 11-Dec-91 Mud Rotary 787,105.88 2,923,654.23 Surficial 47.0 37.0-47.0 34.5-47.0 32.0-34.5 2.0
2802-MSWLF-1982 Wells #4s 12-Dec-91 Mud Rotary 787,373.17 2,924,609.72 Surficial 15.0 5.0-15.0 3.0-15.0 1.0-3.0 2.0
2802-MSWLF-1982 Wells #4d 12-Dec-91 Mud Rotary 787,377.81 2,924,606.30 Surficial 51.0 41.0-51.0 37.0-51.0 35.5-37.0 2.0
2802-MSWLF-1982 Wells #5s 13-Dec-91 Mud Rotary 787,566.68 2,923,976.73 Surficial 18.0 8.0-18.0 6.0-18.0 4.0-6.0 2.0
2802-MSWLF-1982 Wells #5d 13-Dec-91 Mud Rotary 787,567.14 2,923,985.49 Surficial 58.0 48.0-58.0 46.0-58.0 44.5-46.0 2.0
2802-MSWLF-1982 Wells #6s 9-Jan-96 Mud Rotary 786,605.38 2,924,055.50 Surficial 17.0 7.0-17.0 5.0-17.0 3.0-5.0 2.0
2802-MSWLF-1982 Wells #6d 9-Jan-96 Mud Rotary 786,605.40 2,924,047.91 Surficial 48.0 38.0-48.0 36.0-48.0 34.0-36.0 2.0
2802-MSWLF-1982 Wells #7s 10-Jan-96 Mud Rotary 786,455.09 2,924,691.47 Surficial 18.0 8.0-18.0 6.0-18.0 4.0-6.0 2.0
Notes:
1. bgs - below ground surface
2. msl - mean sea level
3. Horizontal Control - North American Datum 1983 State Plane Feet North Carolina
Monitoring
Well
Diameter
(inches)
Northing EastingFacility Permit
Number
Total
Depth
(feet bgs)
Screen
Interval
Filter
Interval
Seal
Interval
Monitoring
Well Code
Aquifer
Monitoring
Interval
Drilling
Method
Completion
Date
Depth (feet bgs)
Page 1 of 1 November 2017
Table 2
Groundwater Elevations
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Date Measured
Top of Casing
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
2802-MSWLF-1982 Well #1s 7.07 6.54 0.53 6.24 0.83 6.01 1.06 6.04 1.03
2802-MSWLF-1982 Well #1d 7.15 6.40 0.75 6.36 0.79 6.21 0.94 6.24 0.91
2802-MSWLF-1982 Well #2s 5.80 5.05 0.75 5.35 0.45 4.63 1.17 5.02 0.78
2802-MSWLF-1982 Well #2d 5.49 4.66 0.83 4.67 0.82 4.62 0.87 4.70 0.79
2802-MSWLF-1982 Well #3s 4.28 3.76 0.52 3.88 0.40 3.81 0.47 3.55 0.73
2802-MSWLF-1982 Well #3d 3.85 3.18 0.67 3.25 0.60 3.00 0.85 3.04 0.81
2802-MSWLF-1982 Well #4s 4.20 5.25 -1.05 5.04 -0.84 3.00 1.20 5.15 -0.95
2802-MSWLF-1982 Well #4d 4.22 3.55 0.67 3.55 0.67 3.37 0.85 3.42 0.80
2802-MSWLF-1982 Well #5s 9.88 8.73 1.15 8.75 1.13 8.72 1.16 9.02 0.86
2802-MSWLF-1982 Well #5d 10.33 9.60 0.73 9.63 0.70 9.41 0.92 9.68 0.65
2802-MSWLF-1982 Well #6s 7.38 5.87 1.51 5.75 1.63 5.90 1.48
2802-MSWLF-1982 Well #6d 6.88 6.51 0.37 6.43 0.45 6.50 0.38
2802-MSWLF-1982 Well #7s 5.08 3.98 1.10 3.98 1.10 4.00 1.08 3.85 1.23
Notes:
1. AMSL - Above Mean Sea Level
2. btoc - Below Top of Casing
3. Vertical Control - North American Vertical Datum of 1988
4. Horizontal Control - North American Datum of 1983
5. Well #6s and #6d were inaccessible during the August 2012 sampling event.
Monitoring Well
Code
Facility Permit
Number
2/14/2012
Not Measured
8/16/2012
Not Measured
8/20/20132/5/2013
Page 1 of 3 November 2017
Table 2
Groundwater Elevations
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Date Measured
Top of Casing
Elevation
(feet AMSL)
2802-MSWLF-1982 Well #1s 7.07
2802-MSWLF-1982 Well #1d 7.15
2802-MSWLF-1982 Well #2s 5.80
2802-MSWLF-1982 Well #2d 5.49
2802-MSWLF-1982 Well #3s 4.28
2802-MSWLF-1982 Well #3d 3.85
2802-MSWLF-1982 Well #4s 4.20
2802-MSWLF-1982 Well #4d 4.22
2802-MSWLF-1982 Well #5s 9.88
2802-MSWLF-1982 Well #5d 10.33
2802-MSWLF-1982 Well #6s 7.38
2802-MSWLF-1982 Well #6d 6.88
2802-MSWLF-1982 Well #7s 5.08
Monitoring Well
Code
Facility Permit
Number
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
6.40 0.67 5.94 1.13 6.14 0.93 6.46 0.61
6.39 0.76 6.18 0.97 6.23 0.92 6.64 0.51
4.74 1.06 4.93 0.87 4.91 0.89 5.88 -0.08
4.66 0.83 4.52 0.97 4.70 0.79 5.27 0.22
4.32 -0.04 3.50 0.78 3.80 0.48 4.69 -0.41
3.11 0.74 3.00 0.85 3.14 0.71 4.00 -0.15
5.04 -0.84 4.45 -0.25 4.62 -0.42 4.39 -0.19
3.54 0.68 3.21 1.01 3.30 0.92 3.81 0.41
8.86 1.02 8.81 1.07 8.75 1.13 9.40 0.48
9.54 0.79 9.55 0.78 9.36 0.97 10.00 0.33
5.70 1.68 5.76 1.62 5.48 1.90 6.64 0.74
6.50 0.38 6.41 0.47 6.51 0.37 7.20 -0.32
3.80 1.28 3.90 1.18 3.80 1.28 6.51 -1.43
Notes:
1. AMSL - Above Mean Sea Level
2. btoc - Below Top of Casing
3. Vertical Control - North American Vertical Datum of 1988
4. Horizontal Control - North American Datum of 1983
8/5/20152/19/20158/19/20142/26/2014
Page 2 of 3 November 2017
Table 2
Groundwater Elevations
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Date Measured
Top of Casing
Elevation
(feet AMSL)
2802-MSWLF-1982 Well #1s 7.07
2802-MSWLF-1982 Well #1d 7.15
2802-MSWLF-1982 Well #2s 5.80
2802-MSWLF-1982 Well #2d 5.49
2802-MSWLF-1982 Well #3s 4.28
2802-MSWLF-1982 Well #3d 3.85
2802-MSWLF-1982 Well #4s 4.20
2802-MSWLF-1982 Well #4d 4.22
2802-MSWLF-1982 Well #5s 9.88
2802-MSWLF-1982 Well #5d 10.33
2802-MSWLF-1982 Well #6s 7.38
2802-MSWLF-1982 Well #6d 6.88
2802-MSWLF-1982 Well #7s 5.08
Monitoring Well
Code
Facility Permit
Number
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
Depth to
Groundwater
(feet btoc)
Groundwater
Elevation
(feet AMSL)
5.73 1.34 6.51 0.56 6.10 0.97 6.20 0.87
6.22 0.93 6.74 0.41 6.39 0.76 6.45 0.70
5.23 0.57 5.63 0.17 4.90 0.90 5.70 0.10
4.73 0.76 5.14 0.35 4.65 0.84 4.79 0.70
4.15 0.13 4.31 -0.03 3.64 0.64 3.64 0.64
3.28 0.57 3.80 0.05 3.10 0.75 3.60 0.25
4.87 -0.67 4.49 -0.29 4.71 -0.51
3.36 0.86 3.65 0.57 3.41 0.81
8.88 1.00 9.30 0.58 9.14 0.74 9.02 0.86
9.35 0.98 10.00 0.33 9.55 0.78 9.51 0.82
5.56 1.82 6.41 0.97 5.49 1.89 5.01 2.37
6.38 0.50 7.30 -0.42 6.49 0.39 5.62 1.26
3.65 1.43 4.60 0.48 4.10 0.98 4.23 0.85
Notes:
1. AMSL - Above Mean Sea Level
2. btoc - Below Top of Casing
3. Vertical Control - North American Vertical Datum of 1988
4. Horizontal Control - North American Datum of 1983
5. Well #4s and #4d were inaccessible during the February 2017 sampling event.
2/18/2016 8/28/20172/2/2017
Not Measured
Not Measured
8/25/2016
Page 3 of 3 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
TSS
(mg/L)
2802-MSWLF-1982 Well #1s 6.8 1,535 17 85 6.7 1,259 19 50 6.9 1,382 15 <1
2802-MSWLF-1982 Well #1d 7.1 1,005 18 NA 7.1 917 18 NA 7.5 930 17 NA
2802-MSWLF-1982 Well #2s 6.5 1,700 18 134 6.4 1,306 21 55 6.6 1,415 16 27
2802-MSWLF-1982 Well #2d 7.2 1,869 19 NA 6.8 1,383 20 NA 6.9 1,532 18 NA
2802-MSWLF-1982 Well #3s 6.5 2,110 15 40 6.4 1,503 20 31 7.6 995 16 18
2802-MSWLF-1982 Well #3d 7.2 1,004 17 NA 7.0 995 18 NA 6.6 1,535 18 NA
2802-MSWLF-1982 Well #4s 6.9 1,355 15 328 6.8 1,131 20 137 7.0 1,278 14 72
2802-MSWLF-1982 Well #4d 7.1 1,000 18 NA 6.9 881 19 NA 7.3 969 16 NA
2802-MSWLF-1982 Well #5s 6.4 1,988 18 135 6.4 1,526 20 68 6.5 1,598 17 51
2802-MSWLF-1982 Well #5d 7.2 860 18 NA 7.1 768 20 NA 7.7 794 17 NA
2802-MSWLF-1982 Well #6s 6.6 1,577 18 48 --------6.8 1,395 16 46
2802-MSWLF-1982 Well #6d 7.0 1,644 19 NA ------NA 7.4 1,338 17 NA
2802-MSWLF-1982 Well #7s 6.3 4,420 18 22 6.2 1,887 20 9.5 6.5 2,700 17 9.3
2802-MSWLF-1982 Downstream 6.6 5,190 7 NA 6.6 1,709 24 NA 6.5 3,790 7 NA
Notes:
1. mg/L - milligrams per liter
2. µS/cm- Microsiemens per centimeter
3. TSS - Total Suspended Solids
4. S.U. - Standard Units
5. NA - Not Analyzed
6. Wells #6s and #6d were inaccessible during the August 2012 sampling event.
Surface Water Sample Location
8/16/2012 2/5/20132/14/2012
Facility Permit
Number
7. (--) Not Collected
Page 1 of 6 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code
2802-MSWLF-1982 Well #1s
2802-MSWLF-1982 Well #1d
2802-MSWLF-1982 Well #2s
2802-MSWLF-1982 Well #2d
2802-MSWLF-1982 Well #3s
2802-MSWLF-1982 Well #3d
2802-MSWLF-1982 Well #4s
2802-MSWLF-1982 Well #4d
2802-MSWLF-1982 Well #5s
2802-MSWLF-1982 Well #5d
2802-MSWLF-1982 Well #6s
2802-MSWLF-1982 Well #6d
2802-MSWLF-1982 Well #7s
2802-MSWLF-1982 Downstream
Surface Water Sample Location
Facility Permit
Number pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
6.6 1,693 19 0.60 -108.2 42 63 6.8 2,013 13 0.58 --27 52
6.6 987 17 1.53 86.6 5 NA 7.4 952 14 2.82 --11 NA
6.6 1,861 21 0.47 -86.5 48 83 6.7 1,899 12 0.73 --92 77
6.9 2,012 21 1.47 137 10 NA 7.3 2,023 15 4.88 --24 NA
6.7 1,966 22 1.85 -49.9 8 9 6.5 1,833 10 0.76 --49 36
7.4 1,181 22 4.02 125.6 12 NA 7.4 1,102 12 4.53 --22 NA
6.5 1,414 20 0.39 -61.3 106 110 6.9 1,575 13 0.50 --25 181
6.9 984 20 0.61 -65.2 9 NA 7.3 987 13 0.54 --37 NA
6.6 1,525 21 0.60 -36.5 54 76 6.5 2,190 13 0.54 --86 108
7.4 846 20 3.16 158.9 3 NA 7.4 850 16 2.49 --8 NA
7.2 1,654 20 0.45 -97.2 0 34 6.8 1,760 13 0.62 --80 74
7.2 1,696 21 5.45 144.5 0 NA 7.4 1,472 13 6.16 --1 NA
6.5 1,867 21 1.01 54 6 2.9 6.5 4,692 11 0.54 --19 18
6.7 2,424 24 1.48 --6.20 NA 7.1 2,220 7 5.88 --14.4 NA
1. mg/L - milligrams per liter 7. mV - Millivolts
2. µS/cm- Microsiemens per centimeter 8. NA - Not Analyzed
3. TSS - Total Suspended Solids 9. ORP was measured inaccurately during the February 2014 sampling event due to a malfunctioning probe.
4. S.U. - Standard Units 10. (--) Not Collected
5. ORP - Oxidation-Reduction Potential
6. NTUs - Nephelometric Turbidity Units
2/26/20148/20/2013
Notes:
Page 2 of 6 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code
2802-MSWLF-1982 Well #1s
2802-MSWLF-1982 Well #1d
2802-MSWLF-1982 Well #2s
2802-MSWLF-1982 Well #2d
2802-MSWLF-1982 Well #3s
2802-MSWLF-1982 Well #3d
2802-MSWLF-1982 Well #4s
2802-MSWLF-1982 Well #4d
2802-MSWLF-1982 Well #5s
2802-MSWLF-1982 Well #5d
2802-MSWLF-1982 Well #6s
2802-MSWLF-1982 Well #6d
2802-MSWLF-1982 Well #7s
2802-MSWLF-1982 Downstream
Surface Water Sample Location
Facility Permit
Number pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
6.8 1,435 21 0.73 -90 48 87 6.9 1,908 4 0.61 53 411 94
7.4 954 20 0.79 48 14 NA 7.7 931 3 4.25 103 4 NA
6.5 1,617 25 1.68 -80 25 71 6.9 1,600 6 0.74 29 42 79
6.8 1,775 23 1.68 16 23 NA 7.4 1,980 6 5.10 66 15 NA
6.4 1,695 25 0.53 -51 19 34 6.7 2,700 3 0.67 45 41 70
7.0 1,075 24 3.55 -13 46 NA 7.6 1,119 8 4.70 61 25 NA
6.9 1,540 21 0.95 -75 110 96 7.7 1,676 6 0.73 133 238 148
6.9 985 19 1.24 -42 15 NA 7.3 1,012 6 0.73 102 64 NA
6.4 1,085 21 0.80 -61 80 135 6.7 2,730 9 0.44 35 71 127
7.2 792 21 2.04 16 16 NA 7.4 856 7 0.48 75 7 NA
6.6 1,452 25 0.64 -96 11 47 7.0 1,512 5 0.50 41 2 60
6.9 1,546 25 3.97 5 9 NA 7.4 1,673 6 6.62 35 0 NA
6.4 1,842 27 0.61 -26 12 7 6.9 5,010 7 0.98 75 40 17
6.7 536 30 3.52 --13 NA 7.5 1,308 3 10.37 --5 NA
1. mg/L - milligrams per liter 7. mV - Millivolts
2. µS/cm- Microsiemens per centimeter
3. TSS - Total Suspended Solids
4. S.U. - Standard Units
5. ORP - Oxidation-Reduction Potential
6. NTUs - Nephelometric Turbidity Units
8/19/2014
Notes:
2/19/2015
8. NA - Not Analyzed
9. (--) Not Collected
Page 3 of 6 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code
2802-MSWLF-1982 Well #1s
2802-MSWLF-1982 Well #1d
2802-MSWLF-1982 Well #2s
2802-MSWLF-1982 Well #2d
2802-MSWLF-1982 Well #3s
2802-MSWLF-1982 Well #3d
2802-MSWLF-1982 Well #4s
2802-MSWLF-1982 Well #4d
2802-MSWLF-1982 Well #5s
2802-MSWLF-1982 Well #5d
2802-MSWLF-1982 Well #6s
2802-MSWLF-1982 Well #6d
2802-MSWLF-1982 Well #7s
2802-MSWLF-1982 Downstream
Surface Water Sample Location
Facility Permit
Number pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
6.8 1,284 22 4.60 -107 5.13 68 6.9 1,734 13 0.96 11 5 28
7.4 870 22 6.01 5 4.35 NA 7.8 923 13 6.12 -11 9 NA
6.4 1,203 27 4.30 -72 36.5 94 6.9 1,404 13 1.14 -19 32 116
6.8 1,210 26 4.93 -7 17.0 NA 7.3 1,645 13 4.84 37 12 NA
6.5 974 29 3.63 -47 14.0 13 6.6 1,683 14 2.24 13 95 96
7.0 886 28 4.47 -20 45.8 NA 7.6 1,038 10 5.34 -49 25 NA
7.0 1,341 24 6.44 -73 71.4 77 7.0 1,394 14 0.60 -12 96 92
7.0 958 23 6.35 -44 18.8 NA 7.3 963 14 0.82 -19 13 NA
6.5 1,405 23 6.54 -70 35.3 92 6.6 1,647 10 2.78 60 89 137
7.1 740 23 3.81 -71 7.66 NA 7.4 856 14 1.62 99 6 NA
6.7 978 29 4.67 -107 1.98 43 6.9 1,135 15 0.76 -34 4 57
6.9 1,027 29 4.73 -43 1.01 NA 7.3 1,320 14 4.05 16 7 NA
6.5 1,760 29 4.99 -10 1.30 12 6.7 3,320 14 2.20 -5 6 13
6.6 1,524 34 2.97 --8.37 NA 6.9 932 8 6.68 --2 NA
1. mg/L - milligrams per liter 7. mV - Millivolts
2. µS/cm- Microsiemens per centimeter 8. NA - Not Analyzed
3. TSS - Total Suspended Solids 9. (--) Not Collected
4. S.U. - Standard Units
5. ORP - Oxidation-Reduction Potential
6. NTUs - Nephelometric Turbidity Units
2/18/20168/5/2015
Notes:
Page 4 of 6 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code
2802-MSWLF-1982 Well #1s
2802-MSWLF-1982 Well #1d
2802-MSWLF-1982 Well #2s
2802-MSWLF-1982 Well #2d
2802-MSWLF-1982 Well #3s
2802-MSWLF-1982 Well #3d
2802-MSWLF-1982 Well #4s
2802-MSWLF-1982 Well #4d
2802-MSWLF-1982 Well #5s
2802-MSWLF-1982 Well #5d
2802-MSWLF-1982 Well #6s
2802-MSWLF-1982 Well #6d
2802-MSWLF-1982 Well #7s
2802-MSWLF-1982 Downstream
Surface Water Sample Location
Facility Permit
Number pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
7.0 558 21 0.24 -86 2 71 6.8 1,213 16 0.34 47 32 64
7.7 446 22 2.88 6 4 NA 7.9 761 16 5.27 133 3 NA
6.7 814 22 0.17 -61 25 117 6.7 1,043 19 0.74 -44 77 105
7.1 989 22 3.81 20 14 NA 7.3 1,228 19 5.36 58 14 NA
6.7 582 23 0.27 -10 37 41 6.6 1,432 11 4.04 56 35 47
7.2 656 22 0.27 12 22 NA 7.5 940 13 0.49 147 20 NA
7.0 1,167 22 0.26 108 61 87 --------------
7.1 779 20 0.20 54 3 NA ------------NA
6.7 750 22 0.19 -57 20 106 6.6 1,235 15 0.58 47 69 147
7.4 514 22 0.10 31 7 NA 7.2 708 15 0.29 39 8 NA
6.8 896 24 0.15 -75 13 110 6.7 843 19 0.49 -71 9 46
7.0 923 23 ---5 5 NA 7.1 602 19 3.30 211 2 NA
6.6 587 24 0.43 31 1 8.4 6.6 1,131 17 0.64 54 3 4
7.3 670 25 2.22 --4 NA 7.2 823 11 4.12 --2 NA
1. mg/L - milligrams per liter 7. mV - Millivolts
2. µS/cm- Microsiemens per centimeter 8. NA - Not Analyzed
3. TSS - Total Suspended Solids 9. (--) Not Collected
4. S.U. - Standard Units 10. Wells #4s and #4d were inaccessible during the February 2017 sampling event.
5. ORP - Oxidation-Reduction Potential
6. NTUs - Nephelometric Turbidity Units
2/2/20178/25/2016
Notes:
Page 5 of 6 November 2017
Table 3
Water Quality Measurements
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
Sample Date:
Monitoring Well Code
2802-MSWLF-1982 Well #1s
2802-MSWLF-1982 Well #1d
2802-MSWLF-1982 Well #2s
2802-MSWLF-1982 Well #2d
2802-MSWLF-1982 Well #3s
2802-MSWLF-1982 Well #3d
2802-MSWLF-1982 Well #4s
2802-MSWLF-1982 Well #4d
2802-MSWLF-1982 Well #5s
2802-MSWLF-1982 Well #5d
2802-MSWLF-1982 Well #6s
2802-MSWLF-1982 Well #6d
2802-MSWLF-1982 Well #7s
2802-MSWLF-1982 Downstream
Surface Water Sample Location
Facility Permit
Number pH
(S.U.)
Conductivity
(µS/cm)
Temperature
(degrees
Celsius)
Dissolved
Oxygen
(mg/l)
ORP
(mV)
Turbidity
(NTUs)
TSS
(mg/L)
6.7 1,121 22 0.35 -60 1 53
7.6 728 22 5.75 10 4 NA
6.4 858 24 0.38 -48 46 84
7.0 903 24 4.10 142 9 NA
6.4 1,057 23 0.24 -40 13 46
7.0 820 23 3.43 70 25 NA
6.7 1,238 22 0.14 110 120 109
6.9 872 22 0.14 82 7 NA
6.5 996 21 0.30 58 26 83
6.9 590 21 0.07 -45 4 NA
6.6 722 24 0.32 -34 7 39
7.0 767 23 2.09 30 1 NA
6.3 889 24 0.24 28 1 3
6.9 674 24 0.58 --6 NA
1. mg/L - milligrams per liter 7. mV - Millivolts
2. µS/cm- Microsiemens per centimeter 8. NA - Not Analyzed
3. TSS - Total Suspended Solids 9. (--) Not Collected
4. S.U. - Standard Units
5. ORP - Oxidation-Reduction Potential
6. NTUs - Nephelometric Turbidity Units
8/28/2017
Notes:
Page 6 of 6 November 2017
Table 4a
Detected Groundwater Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincBenzeneCarbon DisulfideChlorobenzene1,4-DichlorobenzeneChloride Sulfate 1*10 700 4*2 10 1*1,000 300 15 50 1 100 20 20 0.2*0.3*1,000 1 700 50 6 250 250
6 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 1 100 3 1 NE 250
2802-MSWLF-1982 Well #1s 15-Aug-11 43 66.7J 0.18J 0.22J 0.76J 1.7J 0.18J 6.4J 1.5J 0.03J 2.8J 8.7J 130 96.9J
2802-MSWLF-1982 Well #1s 14-Feb-12 0.21J 51 68.2J 0.06J 0.29J 1.1J 0.9J 79 1.5J 8.5J 1.2J 6.9J 0.03J 2.6J 37 109 109J
2802-MSWLF-1982 Well #1s 16-Aug-12 51 69.4J 0.10J 0.49J 0.62J 15 0.34J 5.0J 1.7J 1.2J 16 108 99.4J
2802-MSWLF-1982 Well #1s 5-Feb-13 21 56.4J 0.04J 0.56J 0.47J 1.5J 0.16J 3.8J 1.8J 1.4J 3.1J 117 188J
2802-MSWLF-1982 Well #1s 20-Aug-13 52 78.4J 0.03J 0.09J 0.25J 0.60J 5.1J 1.3J 5.8J 2.2J 1.1J 1.6J 4.7J 145 224J
2802-MSWLF-1982 Well #1s 26-Feb-14 0.05J 30 79.6J 0.07J 0.50J 0.49J 1.4J 0.10J 4.3J 1.4J 0.18J 1.6J 3.2J 109 355
2802-MSWLF-1982 Well #1s 19-Aug-14 31 76.6J 0.09J 0.13J 0.66J 0.69J 9.3J 1.4J 5.8J 1.4J 1.0J 2.1J 9.6J 106 111J
2802-MSWLF-1982 Well #1s 19-Feb-15 0.19J 27 97.3J 0.05J 0.47J 0.72J 4.0J 0.22J 6.5J 3.2J 0.09J 2.4J 4.1J 134 247J
2802-MSWLF-1982 Well #1s 5-Aug-15 0.43J 40 74.7J 0.06J 0.04J 0.85J 0.76J 9.7J 0.99J 5.4J 2.1J 3.3J 1.2J 15 117 157J
2802-MSWLF-1982 Well #1s 18-Feb-16 0.46J 6.6J 85.9J 0.07J 0.11J 0.73J 4.0J 0.56J 9.9J 1.5J 0.44J 2.4J 6.7J 69 537
2802-MSWLF-1982 Well #1s 25-Aug-16 0.08J 20 82.6J 0.06J 0.59J 0.56J 3.2J 0.29J 5.0J 2.0J 0.72J 2.0J 113 251
2802-MSWLF-1982 Well #1s 2-Feb-17 0.06J 19 93.9J 0.15J 0.13J 0.85J 1.3J 6.3J 0.66J 18.2J 3.7J 0.42J 2.9J 18 94 474
2802-MSWLF-1982 Well #1s 28-Aug-17 13 74.9J 0.47J 0.49J 2.0J 0.10J 3.0J 2.5J 1.2J 3.9J 127 267
2802-MSWLF-1982 Well #1d 15-Aug-11 0.41J 2.7J 0.50J 0.41J 9.2J 0.08J 71 0.33J 1.4J 284 97 11.2J
2802-MSWLF-1982 Well #1d 14-Feb-12 0.33J 2.9J 0.91J 0.39J 14 1.9J 57 0.72J 0.08J 0.42J 281 94 8.9J
2802-MSWLF-1982 Well #1d 16-Aug-12 3.2J 1 0.36J 13 0.62J 56 0.92J 297 85 15.1J
2802-MSWLF-1982 Well #1d 5-Feb-13 0.08J 0.20J 2.7J 0.76J 0.33J 9.2J 0.36J 6.6J 1.0J 0.12J 0.30J 258 95 20.2J
2802-MSWLF-1982 Well #1d 20-Aug-13 0.07J 0.25J 3J 1 0.21J 23 2.4J 31.1J 1.1J 0.21J 0.38J 423 97 13.7J
2802-MSWLF-1982 Well #1d 26-Feb-14 0.08J 3.2J 0.85J 0.04J 27 2.7J 24.1J 0.43J 0.30J 0.39J 460 94 13.0J
2802-MSWLF-1982 Well #1d 19-Aug-14 0.38J 3.7J 1 0.20J 29 3.1J 22.6J 0.62J 0.09J 410 97
2802-MSWLF-1982 Well #1d 19-Feb-15 0.84J 3.0J 0.68J 0.23J 42 3.2J 15.2J 1.3J 0.36J 0.84J 397 105 10.7J
2802-MSWLF-1982 Well #1d 5-Aug-15 0.18J 3.1J 0.03J 1 0.33J 0.19J 66 2.2J 16.1J 0.63J 0.13J 0.37J 797 108 15.1J
2802-MSWLF-1982 Well #1d 18-Feb-16 0.25J 3.5J 0.68J 0.17J 78 4.6J 11.9J 0.61J 0.27J 0.50J 549 102 7.0J
2802-MSWLF-1982 Well #1d 25-Aug-16 0.07J 3.7J 0.49J 0.20J 59 2.5J 11.1J 0.56J 0.11J 491 97 8.7J
2802-MSWLF-1982 Well #1d 2-Feb-17 0.10J 3.2J 0.50J 0.20J 120 4.2J 8.9J 0.97J 1.4J 0.39J 503 101 50.9J
2802-MSWLF-1982 Well #1d 28-Aug-17 0.09J 0.34J 3.6J 0.56J 111 3.6J 7.2J 0.92J 0.27J 0.49J 692 105
2802-MSWLF-1982 Well #2s 15-Aug-11 9J 114 0.16J 0.90J 2.3J 8.8J 1.4J 22.1J 0.81J 0.03J 4.1J 38 1.20 17.40 1.80 114 14.0J
2802-MSWLF-1982 Well #2s 14-Feb-12 7J 136 0.17J 1.1J 1.8J 5.7J 1J 6.3J 0.91J 0.43J 2.7J 25 1.90 23.60 2.50 52
2802-MSWLF-1982 Well #2s 16-Aug-12 8J 134 0.19J 1.1J 2.3J 10 1.5J 10.4J 1.4J 0.25J 0.11J 2.2J 47 1.90 28.70 1.70 40
2802-MSWLF-1982 Well #2s 5-Feb-13 1.1J 6.7J 0.06J 0.84J 0.29J 2.6J 0.20J 7.4J 3.8J 0.21J 66 1.30 18.70 2.80 427 50.7J
2802-MSWLF-1982 Well #2s 20-Aug-13 0.05J 10 134 0.04J 0.22J 0.85J 2.5J 5.9J 1.2J 13J 2.4J 0.47J 2.8J 35 1.10 0.80J 21.50 1.80 81 11J
2802-MSWLF-1982 Well #2s 26-Feb-14 0.34J 6.6J 131 0.14J 1.5J 2.0J 6.1J 1.1J 6.6J 1.4J 0.71J 2.5J 25 113 31.1J
2802-MSWLF-1982 Well #2s 19-Aug-14 5.5J 138 0.07J 1 0.77J 2.0J 5.1J 1.8J 8.2J 1.4J 0.69J 2.0J 22 0.70J 24.80 2.80 72 6.9J
2802-MSWLF-1982 Well #2s 19-Feb-15 0.16J 4.9J 115 0.30J 0.91J 1.9J 5.1J 0.64J 6.9J 1.5J 0.70J 2.1J 16 0.50J 13.60 2.50 89 13.6J
2802-MSWLF-1982 Well #2s 5-Aug-15 0.21J 11 113 0.06J 0.31J 1.5J 2.3J 3.8J 1.2J 10.2J 3.6J 1.6J 0.08J 3.0J 23 0.40J 9.10 1.20 127 11.0J
2802-MSWLF-1982 Well #2s 18-Feb-16 0.31J 12 126 0.06J 0.36J 1.2J 2.4J 7.2J 1.5J 10.7J 1.4J 2.5J 3.1J 38 0.50J 14.40 2.90 69 6.2J
2802-MSWLF-1982 Well #2s 25-Aug-16 0.10J 13 130 0.10J 0.26J 2.1J 2.4J 8.7J 2.0J 9.0J 2.6J 0.67J 3.5J 47 0.40J 19.00 2.40 93
2802-MSWLF-1982 Well #2s 2-Feb-17 0.13J 15 134 0.09J 0.24J 2.0J 2.7J 7.6J 2.0J 12.2J 1.7J 1.4J 3.1J 43 0.30J 18.10 3.70 81 2.79J
2802-MSWLF-1982 Well #2s 28-Aug-17 0.10J 11 119 0.26J 1.6J 1.9J 3.8J 1.3J 5.3J 1.8J 0.76J 3.1J 17 15.60 2.30 81
North Carolina 2L or Groundwater Protection
Standard
Solid Waste Section Limit
Metals General Chemistry
Sample
Date
Monitoring
Well Code
Facility Permit
Number
Volatile Organic Compounds
Page 1 of 6 November 2017
Table 4a
Detected Groundwater Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincBenzeneCarbon DisulfideChlorobenzene1,4-DichlorobenzeneChloride Sulfate 1*10 700 4*2 10 1*1,000 300 15 50 1 100 20 20 0.2*0.3*1,000 1 700 50 6 250 250
6 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 1 100 3 1 NE 250
North Carolina 2L or Groundwater Protection
Standard
Solid Waste Section Limit
Metals General Chemistry
Sample
Date
Monitoring
Well Code
Facility Permit
Number
Volatile Organic Compounds
2802-MSWLF-1982 Well #2d 15-Aug-11 0.85J 10.5J 0.07J 10 3.0J 15 3.8J 82 2.2J 0.27J 1.7J 485 430 35.4J
2802-MSWLF-1982 Well #2d 14-Feb-12 0.56J 8.4J 0.27J 24 1.3J 14 3.4J 62 2.6J 0.49J 357 405 45.4J
2802-MSWLF-1982 Well #2d 16-Aug-12 0.32J 0.44J 7.9J 0.11J 20 1.2J 12 3.8J 25.5J 2.7J 0.35J 279 414 36.6J
2802-MSWLF-1982 Well #2d 5-Feb-13 0.06J 3.2J 116 0.10J 0.27J 1.6J 1.3J 0.24J 6.3J 1.2J 1.2J 11 104 11.3J
2802-MSWLF-1982 Well #2d 20-Aug-13 0.07J 0.86J 7.1J 0.10J 8.5J 0.67J 16 5.4J 13.8J 4.6J 0.38J 0.20J 225 388 40.5J
2802-MSWLF-1982 Well #2d 26-Feb-14 0.82J 8.7J 2 27 0.65J 24 6.2J 15.7J 1.7J 0.66J 0.28J 275 388 40.3J
2802-MSWLF-1982 Well #2d 19-Aug-14 0.92J 9.6J 0.88J 6.8J 0.65J 22 4.0J 10.7J 3.4J 0.19J 217 0.30J 422 45.5J
2802-MSWLF-1982 Well #2d 19-Feb-15 1.4J 7.7J 0.37J 8.4J 0.60J 34 4.3J 10.9J 4.9J 0.82J 0.67J 211 358 42.1J
2802-MSWLF-1982 Well #2d 5-Aug-15 0.04J 1.2J 9.8J 0.03J 0.33J 27 0.68J 42 6.3J 13.5J 4.8J 2.4J 0.12J 0.24J 271 1.10J 360 33.4J
2802-MSWLF-1982 Well #2d 18-Feb-16 0.10J 1.3J 8.0J 0.35J 11 0.56J 57 7.3J 12.4J 4.3J 1.1J 0.48J 342 348 32.4J
2802-MSWLF-1982 Well #2d 25-Aug-16 0.06J 0.72J 8.5J 0.36J 9.8J 0.53J 85 6.2J 11.2J 3.6J 4.4J 366 370 38.2J
2802-MSWLF-1982 Well #2d 2-Feb-17 0.08J 0.80J 8.1J 0.34J 25 0.55J 58 7.0J 14.7J 5.7J 2.4J 438 400 44.6J
2802-MSWLF-1982 Well #2d 28-Aug-17 1.1J 6.9J 0.28J 5.0J 0.35J 64 5.9J 10.1J 4.1J 0.88J 0.50J 524 0.80J 370 46.6J
2802-MSWLF-1982 Well #3s 15-Aug-11 5.2J 370 0.61J 1.2J 6.0J 0.67J 2.3J 12 0.41J 2.3J 150 1,619 75.4J
2802-MSWLF-1982 Well #3s 14-Feb-12 1J 158 0.06J 0.15J 0.46J 0.47J 1.7J 0.46J 3.0J 2.9J 0.57J 1.8J 13 300 8.1J
2802-MSWLF-1982 Well #3s 16-Aug-12 0.06J 1.4J 128 0.07J 0.13J 0.57J 0.74J 2.6J 0.67J 4.0J 3.0J 0.68J 1.5J 43 291 15.3J
2802-MSWLF-1982 Well #3s 5-Feb-13 0.15J 1.4J 115 0.09J 0.32J 0.45J 0.91J 0.10J 4.1J 3.2J 0.11J 1.2J 3.2J 202 8.7J
2802-MSWLF-1982 Well #3s 20-Aug-13 2.6J 138 0.06J 0.50J 0.46J 3J 0.34J 5.2J 6.8J 0.34J 0.23J 1.2J 11 610 11.1J
2802-MSWLF-1982 Well #3s 26-Feb-14 0.06J 0.56J 130 0.04J 0.07J 0.56J 0.43J 1.7J 0.31J 3.5J 3.1J 2.5J 2.2J 7.0J 193 11.3J
2802-MSWLF-1982 Well #3s 19-Aug-14 1.0J 130 0.08J 0.07J 0.46J 0.69J 2.2J 0.52J 4.3J 4.1J 2.8J 1.6J 7.4J 208
2802-MSWLF-1982 Well #3s 19-Feb-15 2.5J 149 0.06J 0.41J 0.84J 3.7J 0.73J 5.4J 6.6J 0.60J 3.0J 12 174 13.3J
2802-MSWLF-1982 Well #3s 5-Aug-15 0.05J 1.8J 73.1J 0.06J 0.98J 0.48J 2.8J 0.53J 2.5J 4.0J 1.2J 0.04J 2.2J 10 244 11.1J
2802-MSWLF-1982 Well #3s 18-Feb-16 0.07J 1.6J 184 0.12J 0.18J 0.89J 3.3J 0.70J 5.7J 4.1J 3.3J 3.5J 13 163 5.5J
2802-MSWLF-1982 Well #3s 25-Aug-16 0.92J 44.3J 0.10J 1.1J 0.51J 2.2J 0.61J 2.3J 1.7J 0.82J 2.3J 7.2J 115
2802-MSWLF-1982 Well #3s 2-Feb-17 0.06J 1.6J 154 0.13J 0.12J 0.53J 0.72J 2.1J 0.41J 7.4J 6.4J 1.6J 2.1J 7.6J 168 0.606J
2802-MSWLF-1982 Well #3s 28-Aug-17 0.06J 1.5J 116 0.09J 0.12J 0.87J 0.84J 3.3J 0.91J 3.5J 3.3J 2.5J 2.9J 18 159
2802-MSWLF-1982 Well #3d 15-Aug-11 0.82J 21.5J 0.09J 0.07J 0.13J 30 6.5J 0.50J 0.82J 0.07J 2.2J 183 99 35.1J
2802-MSWLF-1982 Well #3d 14-Feb-12 8.7J 0.16J 0.15J 27 3.8J 1.8J 0.66J 0.05J 0.69J 81 117 75J
2802-MSWLF-1982 Well #3d 16-Aug-12 0.17J 11.9J 0.05J 0.13J 35 5.0J 2.1J 0.90J 0.52J 74 121 64.7J
2802-MSWLF-1982 Well #3d 5-Feb-13 0.07J 0.74J 4.7J 0.09J 0.13J 25 4.2J 3.0J 1.4J 0.30J 0.25J 121 124 51.8J
2802-MSWLF-1982 Well #3d 20-Aug-13 0.63J 7.9J 0.10J 0.18J 40 9.8J 5.5J 1.7J 0.25J 0.08J 0.29J 152 137 73.2J
2802-MSWLF-1982 Well #3d 26-Feb-14 0.12J 6.7J 0.06J 64 9.1J 2.8J 0.50J 1.5J 0.65J 166 110 54.0J
2802-MSWLF-1982 Well #3d 19-Aug-14 0.19J 10.1J 0.18J 0.15J 41 9.9J 3.0J 0.92J 0.20J 0.22J 44 127 62.8J
2802-MSWLF-1982 Well #3d 19-Feb-15 0.92J 8.2J 0.06J 0.17J 71 12 3.6J 2.1J 0.52J 0.99J 140 129 23.1J
2802-MSWLF-1982 Well #3d 5-Aug-15 0.03J 10.4J 0.17J 0.16J 30 12 2.7J 1.2J 0.28J 0.70J 56 120 39.3J
2802-MSWLF-1982 Well #3d 18-Feb-16 0.09J 7.9J 0.10J 0.15J 62 14 3.5J 0.93J 0.48J 0.74J 182 105 38.5J
2802-MSWLF-1982 Well #3d 25-Aug-16 0.10J 7.5J 0.04J 0.14J 17 7.8J 3.1J 0.91J 0.17J 0.61J 183 141 73.6J
2802-MSWLF-1982 Well #3d 2-Feb-17 0.06J 8.3J 0.48J 0.24J 69 14 19.8J 2.1J 1.0J 0.56J 333 147 75.7J
2802-MSWLF-1982 Well #3d 28-Aug-17 0.18J 9.0J 42 20 6.4J 1.1J 2.3J 0.64J 286 147 77.7J
Page 2 of 6 November 2017
Table 4a
Detected Groundwater Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincBenzeneCarbon DisulfideChlorobenzene1,4-DichlorobenzeneChloride Sulfate 1*10 700 4*2 10 1*1,000 300 15 50 1 100 20 20 0.2*0.3*1,000 1 700 50 6 250 250
6 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 1 100 3 1 NE 250
North Carolina 2L or Groundwater Protection
Standard
Solid Waste Section Limit
Metals General Chemistry
Sample
Date
Monitoring
Well Code
Facility Permit
Number
Volatile Organic Compounds
2802-MSWLF-1982 Well #4s 15-Aug-11 3.0J 86.5J 0.12J 0.09J 5.2J 3.7J 5.3J 3.0J 6.7J 1.1J 0.15J 0.03J 6.5J 87 120 12.1J
2802-MSWLF-1982 Well #4s 14-Feb-12 2.8J 154 0.19J 0.43J 8.2J 5.3J 9.5J 4.7J 12.4J 0.96J 0.41J 11.3J 115 124 6.4J
2802-MSWLF-1982 Well #4s 16-Aug-12 2.6J 79.3J 0.15J 0.10J 5.7J 3.4J 4.5J 2.7J 7.4J 1.0J 0.25J 6.0J 78 107
2802-MSWLF-1982 Well #4s 5-Feb-13 0.03J 0.90J 124 0.21J 3.3J 0.78J 2.8J 0.56J 4.1J 1.9J 3.3J 17 140 18.6J
2802-MSWLF-1982 Well #4s 20-Aug-13 0.17J 2.7J 113 0.15J 0.14J 5.7J 3.8J 6.2J 2.5J 7.8J 2.3J 0.52J 0.05J 5.8J 65 177 19.6J
2802-MSWLF-1982 Well #4s 26-Feb-14 0.06J 1.6J 150 0.09J 5.0J 2.1J 6.3J 1.5J 4.4J 1.8J 0.08J 5.3J 44 202 12.4J
2802-MSWLF-1982 Well #4s 19-Aug-14 0.27J 3.5J 222 0.22J 0.98J 7.1J 6.1J 20 5.8J 12.7J 2.5J 2.2J 9.4J 236 228 11.2J
2802-MSWLF-1982 Well #4s 19-Feb-15 3.5J 178 0.16J 5.5J 3.5J 4.0J 2.1J 6.7J 4.8J 0.24J 6.5J 46 219 10.4J
2802-MSWLF-1982 Well #4s 5-Aug-15 0.05J 2.1J 146 0.06J 0.41J 4.0J 2.4J 3.3J 1.3J 5.1J 2.6J 0.13J 3.3J 39 189 10.7J
2802-MSWLF-1982 Well #4s 18-Feb-16 0.07J 2.3J 151 0.15J 0.06J 3.9J 2.7J 3.2J 1.6J 5.5J 2.5J 0.13J 5.2J 33 167 5.5J
2802-MSWLF-1982 Well #4s 25-Aug-16 0.05J 2.5J 125 0.15J 5.9J 2.8J 2.9J 1.8J 5.8J 3.2J 0.24J 5.1J 27 174
2802-MSWLF-1982 Well #4s 28-Aug-17 0.07J 3.7J 120 0.18J 0.12J 6.8J 4.2J 4.5J 3.2J 7.2J 2.4J 0.33J 7.4J 67 157
2802-MSWLF-1982 Well #4d 15-Aug-11 0.38J 3.7J 0.11J 6.3J 2.0J 0.49J 0.28J 1.7J 16 73 20.8J
2802-MSWLF-1982 Well #4d 14-Feb-12 0.17J 6.3J 0.4J 0.3J 0.22J 9.2J 1.8J 2.6J 0.31J 1.1J 42 71 13.7J
2802-MSWLF-1982 Well #4d 16-Aug-12 4.8J 0.08J 0.16J 12 2.5J 2.2J 0.59J 0.25J 0.59J 12 71 14.7J
2802-MSWLF-1982 Well #4d 5-Feb-13 0.05J 0.46J 5.2J 0.28J 0.14J 7.3J 0.99J 42.2J 0.98J 0.54J 100 94 13.7J
2802-MSWLF-1982 Well #4d 20-Aug-13 0.41J 5.3J 0.03J 0.18J 16 17 6.3J 0.84J 0.06J 0.52J 13 80 17.6J
2802-MSWLF-1982 Well #4d 26-Feb-14 0.04J 6.5J 0.15J 16 24 8.3J 0.48J 0.11J 1.2J 123 82
2802-MSWLF-1982 Well #4d 19-Aug-14 0.40J 8.6J 0.04J 0.56J 0.22J 16 11 2.5J 0.78J 0.48J 10 95 17.0J
2802-MSWLF-1982 Well #4d 19-Feb-15 0.84J 11.2J 0.16J 0.19J 13 17 3.7J 1.6J 0.05J 1.4J 111 90 10.2J
2802-MSWLF-1982 Well #4d 5-Aug-15 0.03J 11.0J 0.03J 0.61J 0.36J 0.22J 11 4.4J 2.3J 0.74J 0.59J 8.9J 115 11.2J
2802-MSWLF-1982 Well #4d 18-Feb-16 0.06J 7.3J 0.33J 0.16J 21 11 3.7J 0.79J 0.06J 1.0J 182 98 5.5J
2802-MSWLF-1982 Well #4d 25-Aug-16 8.6J 0.10J 0.21J 15 3.9J 2.8J 0.71J 8.9J 95
2802-MSWLF-1982 Well #4d 28-Aug-17 0.07J 0.18J 7.2J 0.08J 14 8.8J 1.7J 0.74J 1.1J 0.71J 20 102
2802-MSWLF-1982 Well #5s 15-Aug-11 12 206 0.10J 0.15J 1.2J 1.7J 6.0J 1.4J 3.2J 1.9J 0.04J 0.10J 5.7J 20 73
2802-MSWLF-1982 Well #5s 14-Feb-12 14 194 0.07J 0.21J 1.6J 1.7J 13 5.7J 6.7J 2.1J 5.4J 25 66
2802-MSWLF-1982 Well #5s 16-Aug-12 14 212 0.10J 1.3J 1.7J 5.8J 2.2J 4.5J 2.4J 4.7J 14 66
2802-MSWLF-1982 Well #5s 5-Feb-13 0.03J 11 214 0.14J 0.98J 1.6J 4.7J 1.4J 5.8J 2.7J 0.08J 3.8J 11 0.40J 82
2802-MSWLF-1982 Well #5s 20-Aug-13 0.08J 18 245 0.08J 0.22J 1.7J 2.1J 16 3.6J 8.6J 2.9J 0.03J 6.3J 24 0.30J 65 10.7J
2802-MSWLF-1982 Well #5s 26-Feb-14 0.28J 15 206 0.14J 0.20J 2.7J 2.3J 24 7.9J 7.0J 2.0J 0.03J 0.07J 6.8J 27 0.40J 51
2802-MSWLF-1982 Well #5s 19-Aug-14 20 240 0.10J 0.16J 1.9J 2.1J 16 3.9J 6.6J 3.0J 6.6J 25 0.30J 96 11.0J
2802-MSWLF-1982 Well #5s 19-Feb-15 0.52J 16 251 0.11J 0.08J 1.7J 2.2J 29 12 8.1J 4.4J 0.41J 6.8J 26 0.30J 54 11.6J
2802-MSWLF-1982 Well #5s 5-Aug-15 0.05J 20 298 0.08J 0.14J 2.0J 2.2J 6.1J 1.5J 6.0J 2.9J 4.9J 8.6J 31 11.5J
2802-MSWLF-1982 Well #5s 18-Feb-16 0.10J 18 287 0.14J 0.29J 1.7J 2.3J 23 5.9J 8.3J 3.0J 0.09J 7.2J 32 43 5.4J
2802-MSWLF-1982 Well #5s 25-Aug-16 20 249 0.09J 0.14J 1.1J 1.8J 5.6J 0.94J 7.2J 3.4J 4.8J 9.0J 78
2802-MSWLF-1982 Well #5s 2-Feb-17 0.09J 18 254 0.18J 0.22J 2.8J 2.4J 26 5.0J 10.6J 4.1J 0.27J 6.5J 43 0.50J 0.252J
2802-MSWLF-1982 Well #5s 28-Aug-17 0.09J 27 234 0.11J 0.17J 1.8J 2.0J 9.3J 1.5J 3.9J 2.9J 6.1J 13 49
Page 3 of 6 November 2017
Table 4a
Detected Groundwater Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincBenzeneCarbon DisulfideChlorobenzene1,4-DichlorobenzeneChloride Sulfate 1*10 700 4*2 10 1*1,000 300 15 50 1 100 20 20 0.2*0.3*1,000 1 700 50 6 250 250
6 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 1 100 3 1 NE 250
North Carolina 2L or Groundwater Protection
Standard
Solid Waste Section Limit
Metals General Chemistry
Sample
Date
Monitoring
Well Code
Facility Permit
Number
Volatile Organic Compounds
2802-MSWLF-1982 Well #5d 15-Aug-11 0.44J 3.5J 0.32J 0.15J 8.9J 2.8J 27.5J 0.26J 0.08J 0.04J 1.6J 1,715 56 17.6J
2802-MSWLF-1982 Well #5d 14-Feb-12 0.3J 4.9J 0.57J 0.17J 32 2.8J 26J 0.07J 0.62J 1,557 55 5.5J
2802-MSWLF-1982 Well #5d 16-Aug-12 4.1J 0.49J 0.13J 30 2.1J 19.6J 0.40J 0.26J 1,363 50 13.0J
2802-MSWLF-1982 Well #5d 5-Feb-13 0.06J 0.34J 3.6J 0.39J 0.10J 24 0.15J 18.1J 0.65J 0.40J 1,080 57 19.4J
2802-MSWLF-1982 Well #5d 20-Aug-13 0.30J 3.5J 0.24J 0.14J 37 1.8J 11.8J 0.67J 0.11J 0.18J 0.47J 693 75
2802-MSWLF-1982 Well #5d 26-Feb-14 0.02J 4.4J 0.18J 59 3.0J 5.8J 0.31J 1.0J 1.00J 625 52
2802-MSWLF-1982 Well #5d 19-Aug-14 0.27J 4.3J 0.31J 0.14J 32 2.3J 3.2J 0.22J 0.21J 0.22J 211 53 6.0J
2802-MSWLF-1982 Well #5d 19-Feb-15 0.16J 0.66J 4.7J 0.05J 0.18J 40 3.9J 2.9J 0.63J 0.75J 1.1J 134 55 17.7J
2802-MSWLF-1982 Well #5d 5-Aug-15 0.02J 4.8J 0.08J 0.13J 19 3.1J 1.9J 0.36J 0.10J 0.84J 22 57 11.7J
2802-MSWLF-1982 Well #5d 18-Feb-16 0.80J 4.4J 0.17J 0.14J 22 6.6J 4.1J 0.62J 0.56J 1.1J 557 59 5.6J
2802-MSWLF-1982 Well #5d 25-Aug-16 4.6J 0.16J 12 5.4J 2.5J 0.39J 19 57
2802-MSWLF-1982 Well #5d 2-Feb-17 6.3J 0.08J 0.17J 7.0J 6.5J 3.8J 0.85J 0.12J 0.46J 89 60 22.9J
2802-MSWLF-1982 Well #5d 28-Feb-17 8.5J 4.3J 4.1J 1.2J 0.72J 0.57J 11 58 16.3J
2802-MSWLF-1982 Well #6s 14-Feb-12 0.39J 0.62J 0.06J 2.5J 0.8J 1.3J 2.8J 1.40 4.40 3.10 33 31.4J
2802-MSWLF-1982 Well #6s 5-Feb-13 0.06J 11 191 0.15J 0.40J 1.3J 0.37J 4.2J 1.2J 1.3J 2.4J 1.50 5.50 4.10 42 8.2J
2802-MSWLF-1982 Well #6s 20-Aug-13 5.9J 164 0.17J 0.20J 1.2J 0.45J 0.05J 5.4J 0.63J 0.03J 1.1J 2.5J 1.10 3.60 2.30 32 20.4J
2802-MSWLF-1982 Well #6s 26-Feb-14 0.11J 23 216 0.04J 0.11J 0.47J 1.3J 0.58J 0.16J 3.2J 0.63J 1.4J 3.7J 1.70 5.50 4.40 38 14.1J
2802-MSWLF-1982 Well #6s 19-Aug-14 26 248 0.04J 0.04J 0.26J 1.3J 0.29J 3.5J 0.84J 1.2J 1.3J 1.70 6.70 4.80 33 13.3J
2802-MSWLF-1982 Well #6s 19-Feb-15 7J 178 1.1J 0.31J 4.4J 0.67J 1.4J 0.83J 1.20 4.90 3.40 26 11.6J
2802-MSWLF-1982 Well #6s 5-Aug-15 0.26J 5.2J 208 0.11J 0.54J 1.2J 0.49J 4.0J 0.52J 0.27J 4.3J 1.20 3.50 1.70 32 13.4J
2802-MSWLF-1982 Well #6s 18-Feb-16 0.12J 18 171 0.05J 0.06J 0.98J 0.46J 3.2J 0.68J 1.6J 3.3J 1.20 5.40 4.10 21 5.7J
2802-MSWLF-1982 Well #6s 25-Aug-16 0.06J 56 180 0.11J 0.23J 1.8J 1.8J 0.90J 1.0J 5.3J 0.95J 3.5J 8.1J 1.40 5.90 3.60 31
2802-MSWLF-1982 Well #6s 2-Feb-17 0.07J 19 169 0.07J 0.47J 0.98J 0.21J 5.7J 0.97J 0.94J 1.20 5.90 4.10 104 0.103J
2802-MSWLF-1982 Well #6s 28-Aug-17 0.10J 17 132 0.50J 0.83J 0.26J 1.9J 1.2J 1.3J 0.70J 1.40 6.30 3.50 31
2802-MSWLF-1982 Well #6d 14-Feb-12 0.15J 0.5J 0.22J 1.5J 2.3J 0.86J 10 368 60.2J
2802-MSWLF-1982 Well #6d 5-Feb-13 0.02J 1.4J 6.6J 0.21J 0.19J 0.72J 0.17J 2.7J 3.8J 0.56J 8.6J 360 49.4J
2802-MSWLF-1982 Well #6d 20-Aug-13 1.3J 5J 0.18J 1J 0.03J 4.5J 3.7J 0.25J 3.8J 336 31.7J
2802-MSWLF-1982 Well #6d 26-Feb-14 0.50J 3.9J 0.13J 0.85J 0.03J 2.0J 1.9J 0.42J 37 298 27.3J
2802-MSWLF-1982 Well #6d 19-Aug-14 0.83J 1.1J 6.2J 0.11J 0.21J 0.81J 2.5J 3.0J 20 318 38.0J
2802-MSWLF-1982 Well #6d 19-Feb-15 1.3J 4.9J 0.18J 0.94J 3.3J 3.9J 0.57J 14 295 38.7J
2802-MSWLF-1982 Well #6d 5-Aug-15 0.09J 0.66J 6.5J 0.03J 0.17J 0.62J 2.8J 2.5J 9.8J 0.80J 320 34.0J
2802-MSWLF-1982 Well #6d 18-Feb-16 0.20J 6.6J 0.84J 0.18J 1.5J 0.11J 3.0J 2.2J 0.40J 7.4J 265 26.2J
2802-MSWLF-1982 Well #6d 25-Aug-16 2.3J 8.8J 0.06J 0.23J 0.71J 3.8J 3.6J 2.3J 0.50J 326 30.9J
2802-MSWLF-1982 Well #6d 2-Feb-17 1.2J 6.6J 0.05J 0.22J 1.0J 4.9J 5.2J 3.1J 323 64.4J
2802-MSWLF-1982 Well #6d 28-Aug-17 0.34J 5.3J 0.59J 1.6J 2.6J 0.40J 0.92J 0.40J 266 23.0J
Page 4 of 6 November 2017
Table 4a
Detected Groundwater Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincBenzeneCarbon DisulfideChlorobenzene1,4-DichlorobenzeneChloride Sulfate 1*10 700 4*2 10 1*1,000 300 15 50 1 100 20 20 0.2*0.3*1,000 1 700 50 6 250 250
6 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 1 100 3 1 NE 250
North Carolina 2L or Groundwater Protection
Standard
Solid Waste Section Limit
Metals General Chemistry
Sample
Date
Monitoring
Well Code
Facility Permit
Number
Volatile Organic Compounds
2802-MSWLF-1982 Well #7s 14-Feb-12 0.72J 2.7J 0.25J 4.3J 8.1J 1.9J 6.9J 1,190 110J
2802-MSWLF-1982 Well #7s 16-Aug-12 0.08J 1.5J 62.4J 0.78J 0.99J 2.1J 0.14J 3.3J 4.4J 2.0J 11 567 11.4J
2802-MSWLF-1982 Well #7s 5-Feb-13 0.07J 2.6J 57.2J 0.49J 0.95J 3.0J 4.7J 6.6J 0.92J 4.9J 720 19.6J
2802-MSWLF-1982 Well #7s 20-Aug-13 1.4J 37.1J 0.24J 0.79J 1.6J 0.10J 4J 2.9J 1.1J 5J 353 10.7J
2802-MSWLF-1982 Well #7s 26-Feb-14 0.04J 2.3J 90.5J 0.03J 0.39J 0.96J 3.4J 0.04J 6.1J 5.7J 1.3J 2.5J 980 429
2802-MSWLF-1982 Well #7s 19-Aug-14 0.24J 1.8J 52.3J 0.06J 0.10J 0.40J 0.89J 1.8J 4.0J 5.3J 0.78J 3.0J 388
2802-MSWLF-1982 Well #7s 19-Feb-15 3.0J 91.9J 0.20J 1.1J 2.4J 9.4J 8.0J 1.6J 3.1J 538 565
2802-MSWLF-1982 Well #7s 5-Aug-15 0.10J 0.78J 120 0.04J 1.6J 1.1J 1.5J 6.3J 4.0J 2.8J 2.1J 346 105J
2802-MSWLF-1982 Well #7s 18-Feb-16 0.95J 2.5J 103 0.09J 0.12J 0.96J 2.2J 0.22J 9.1J 5.0J 2.1J 9.4J 390 794
2802-MSWLF-1982 Well #7s 25-Aug-16 17.9J 0.53J 0.63J 1.8J 0.09J 2.8J 1.5J 1.6J 3.1J 0.60J 96
2802-MSWLF-1982 Well #7s 2-Feb-17 0.09J 1.7J 37.9J 0.06J 0.05J 0.48J 0.87J 1.7J 0.08J 6.8J 4.7J 1.3J 3.7J 223 25.1J
2802-MSWLF-1982 Well #7s 28-Aug-17 0.09J 1.0J 29.0J 0.62J 0.60J 0.88J 2.1J 2.3J 1.6J 3.5J 204
2802-MSWLF-1982 Well #7d 12-Jan-96 19 752 3 30 15 73 105 706 245
Notes:
1. Metal and volatile organic compound units are in micrograms per liter (parts per billion).
2. General chemistry units are in milligrams per liter (parts per million).
3. * - Groundwater Protection Standard
4. NE - Not Established
5. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit.
6. Well #6s and #6d were inaccessible during the August 2012 sampling event.
- Blank cell indicates the analyte was not detected
- Concentration exceeds the 15A NCAC 02L.0202 (North Carolina 2L) or Groundwater Protection Standard
Page 5 of 6 November 2017
Table 4b
Detected Surface Water Constituents - Metals, Volatile Organic Compounds, and General Chemistry
August 2017 Semi-Annual Sampling Event
Dare County Closed East Lake Landfill
Permit Number 2802-MSWLF-1982
AntimonyArsenicBariumBerylliumCadmiumChromium(5)CobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneTolueneXylenesChloride Sulfate 5,300*150 21,000*6.5 0.15 23.81 NS 2.26 1,000 0.40 NS 0.012 24.96 5 0.06 NS NS 36.50 2,000*11 670*230 NS
10 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 5 NE 250
2802-MSWLF-1982 Downstream 15-Aug-11 5.6J 37.7J 0.26J 8.1J 0.05J 0.04J 18 0.86J 4.4J 2,749 345
2802-MSWLF-1982 Downstream 14-Feb-12 2.6J 34.1J 0.26J 0.22J 3.9J 0.1J 1.6J 8.7J 1,450 149J
2802-MSWLF-1982 Downstream 16-Aug-12 0.10J 4.0J 33.6J 0.18J 5.2J 1.9J 6.2J 6.0J 4.2J 5.0J 0.24J 6.1J 52 523 29.7J
2802-MSWLF-1982 Downstream 5-Feb-13 0.03J 3.9J 22.8J 0.49J 0.23J 3.2J 0.26J 2.2J 12 0.64J 4.8J 1,160 131J
2802-MSWLF-1982 Downstream 20-Aug-13 0.12J 2.7J 22.9J 0.03J 1J 0.83J 2.4J 0.50J 1.8J 6.0J 0.81J 5.1J 575
2802-MSWLF-1982 Downstream 26-Feb-14 1.6J 18.6J 1.6J 0.48J 2.8J 0.70J 1.7J 4.1J 1.2J 6.9J 545 24.1J
2802-MSWLF-1982 Downstream 19-Aug-14 4.5J 16.1J 0.07J 6 0.81J 2.8J 1.8J 1.1J 2.8J 0.69J 1.7J 16 38 10.2J
2802-MSWLF-1982 Downstream 19-Feb-15 1.9J 13.5J 0.84J 0.27J 1.5J 0.15J 1.4J 3.8J 0.95J 4.0J 262 12.8J
2802-MSWLF-1982 Downstream 5-Aug-15 0.08J 2.9J 17.1J 0.03J 0.70J 0.71J 2.1J 0.52J 0.87J 5.6J 0.02J 1.4J 6.0J 10.50J 0.50J 0.80J 610 17.9J
2802-MSWLF-1982 Downstream 18-Feb-16 0.06J 0.89J 9.4J 0.41J 0.17J 1.4J 0.23J 1.0J 1.6J 0.46J 2.8J 201 6.4J
2802-MSWLF-1982 Downstream 25-Aug-16 0.05J 1.5J 12.9J 0.04J 0.96J 0.25J 1.3J 0.49J 0.86J 3.1J 228
2802-MSWLF-1982 Downstream 2-Feb-17 1.0J 10.2J 0.97J 0.25J 0.95J 0.38J 1.0J 3.1J 0.64J 5.6J 228 21.3J
2802-MSWLF-1982 Downstream 28-Aug-17 1.2J 18.0J 0.78J 0.32J 1.4J 0.25J 1.1J 2.0J 0.69J 2.2J 202
Notes:
1. Metal and volatile organic compound units are in micrograms per liter (parts per billion).
2. General chemsitry units are in milligrams per liter (parts per million).
3. Standards obtained from 15A NCAC 02B (North Carolina 2B) or Protective Value Surface Water Standards for Class C Waters or are National Criteria per the U.S. Environmental Protection Agency (September 2017).
4. * - North Carolina Protective Value
5. (5) - A Standard for total chromium has not been established. The value provided is for chromium (III).
6. NS - No Standard
7. NE - Not Established
8. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit.
9. Iron, managenese, and mercury have not been analyzed since the February 1995 sampling event.
- Blank cell indicates the analyte was not detected
- Concentration exceeds the North Carolina 2B or Protective Value Freshwater Aquatic Life Standard for Class C Waters
Metals
North Carolina 2B or Protective Value Freshwater
Aquatic Life Standard
Solid Waste Section Limit
General ChemistryVolatile Organic
Compounds
Facility Permit
Number
Surface Water
Sample Code Sample Date
Page 6 of 6 November 2017

Appendix A