2803_DareCoCDLF_LFGMR_DIN28614_20170512

Dare County C&D LandfillFacility Permit Number 2803-CDLF-1995Semi-Annual Sampling Report (February 2017 Sampling Event)

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

May 12, 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: February 2017 Semi-Annual Groundwater Sampling Report
Dare County C&D Landfill
Dare County, North Carolina
Facility Permit Number 2803-CDLF-1995
Dear Ms. Drummond:
CDM Smith Inc., on behalf of Dare County, is submitting an electronic copy of the February 2017
semi-annual groundwater sampling event report. This letter report presents the results of the most
recent semi-annual sampling event that was completed at the Dare County C&D Landfill and
constitutes the first semi-annual sampling event for 2017. The approved groundwater monitoring
network consists of 13 wells (i.e. MW-1 (background well), -2, -3, -8, -9, -10, -11, -12, -13, -14, -15, -16,
and -17) and three surface water sampling locations (i.e. SW-1, -2, and -3). Field activities and
sampling results are discussed below.
Field Activities
Groundwater and surface water samples from the Dare County C&D Landfill were collected on
February 22-23, 2017, by Environment One, Inc. (Environment One). Monitoring wells and surface
water sample locations are shown on Figure 1. Well construction details for the monitoring wells are
provided 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
(DO), and oxidation-reduction potential (ORP) prior to sampling with the exception of MW-9. DO was
not measured at MW-9 due to a restriction in the well casing that prevented lowering the water

Ms. Jaclynne Drummond
May 12, 2017
Page 2

quality meter probe inside the well. MW-9 will be evaluated and repaired or replaced prior to the next
sampling event. The same water quality parameters were measured at the surface water sample
locations with the exception of ORP. The water quality parameters at the time samples were
collected are presented in Table 2.
Sampling Results
Environment One located in Greenville, North Carolina, analyzed the groundwater and surface water
samples for North Carolina Appendix I volatile organic compounds by U.S. Environmental Protection
Agency (EPA) Method 8260B, metals by EPA Methods 200.7, 200.8, and Standard Method (SM) 3111B,
mercury by EPA Method 245.1, alkalinity by SM 2320B, chloride and sulfate by SM 4500, and total
dissolved solids (TDS) by SM 2540C. 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 surface water sample locations
for the C&D 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 for
the February 2017 sampling event is presented in Table 3. Analytical results for TDS are provided in
Table 2. The laboratory analytical report is provided in Appendix A.
MW-1
General Chemistry: Alkalinity, Chloride
Metals: Iron, Manganese, Zinc
Volatile Organic Compounds: None Detected
MW-2
General Chemistry: Alkalinity, Chloride
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected
MW-3
General Chemistry: Alkalinity, Chloride
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected

Ms. Jaclynne Drummond
May 12, 2017
Page 3

MW-8
General Chemistry: Alkalinity, Chloride
Metals: Barium, Copper, Iron, Manganese, Zinc
Volatile Organic Compounds: None Detected
MW-9
General Chemistry: Alkalinity, Chloride
Metals: Arsenic, Chromium, Iron, Vanadium, Zinc
Volatile Organic Compounds: None Detected

MW-10
General Chemistry: Alkalinity, Chloride
Metals: Arsenic, Iron, Manganese
Volatile Organic Compounds: None Detected
MW-11
General Chemistry: Alkalinity, Chloride, Sulfate
Metals: Chromium, Iron, Manganese
Volatile Organic Compounds: None Detected
MW-12
General Chemistry: Alkalinity, Chloride
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected
MW-13
General Chemistry: Alkalinity, Chloride
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected
MW-14
General Chemistry: Alkalinity, Chloride
Metals: Arsenic, Iron, Manganese
Volatile Organic Compounds: None Detected
MW-15
General Chemistry: Alkalinity, Chloride
Metals: Arsenic, Iron, Manganese, Zinc
Volatile Organic Compounds: None Detected

Ms. Jaclynne Drummond
May 12, 2017
Page 4

MW-16
General Chemistry: Alkalinity, Chloride
Metals: Barium, Iron, Manganese, Selenium
Volatile Organic Compounds: None Detected
MW-17
General Chemistry: Alkalinity, Chloride
Metals: Iron, Zinc
Volatile Organic Compounds: None Detected
SW-1
General Chemistry: Alkalinity, Chloride, Sulfate
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected
SW-2
General Chemistry: Alkalinity, Chloride, Sulfate
Metals: Iron, Manganese
Volatile Organic Compounds: None Detected
SW-3
General Chemistry: Alkalinity, Chloride, Sulfate
Metals: Iron, Manganese
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: MW-9
Lead: SW-1, -2 and -3
Vanadium: MW-1, -2, -3, -8, -10, -11, -12, -13, -14, -15, -16, and -17
Equipment and trip blanks were analyzed for quality control. A duplicate sample was also collected for
quality control. No analytes were detected in the trip blank. The equipment blank had “J” flag
detections of barium, cadmium, copper, iron, and nickel below their respective NC 2L Standard.
Duplicate samples collected from MW-10 had analytes detected at similar concentrations to the
parent samples.

Ms. Jaclynne Drummond
May 12, 2017
Page 5

Metals and general chemistry analytes exceeding the standards are likely naturally occurring based on
detections in the background monitoring well MW-1. 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 second
semi-annual sampling event for 2017 is tentatively scheduled for August.
If you have any questions or require further explanation, do not hesitate to call me at [phone].
Very truly yours,

Mathew F. Colone, P.G.
CDM Smith Inc.
Attachments
cc: Edward Mann, Dare County

Table 1Monitoring Well Construction SummaryDare County C&D Landfill Permit Number 2803-CDLF-1995Top of Ground Top TopCasing Surface Borehole Screen of of CasingElevation Elevation Depth Interval Filter Pack Seal Diameter(feet msl) (feet msl) (feet bgs) (feet bgs) (feet bgs) (feet bgs) (inches)2803-CDLF-1995GW-1 11/28/1994 HSA 775459.46 2943423.17 Surficial 3.13 1.58 10.0 10.0-20.0 8.0 7.0 2.02803-CDLF-1995GW-2 11/29/1994 HSA 774812.63 2943476.21 Surficial 3.17 1.4 20.0 10.0-20.0 8.0 7.0 2.02803-CDLF-1995GW-3 11/29/1994 HSA 774246.50 2943544.29 Surficial 4.18 1.82 20.0 10.0-20.0 8.0 7.0 2.02803-CDLF-1995GW-8 11/28/1994 HSA 775276.96 2942765.21 Surficial 4.55 2.90 20.0 10.0-20.0 8.0 7.0 2.02803-CDLF-1995GW-9 8/14/2002 HSA 772578.01 2942615.36 Surficial 3.59 0.90 20.0 2.0-20.0 1.5 1.0 2.02803-CDLF-1995GW-10 8/13/2002 HSA 772873.78 2943188.48 Surficial 6.02 2.70 20.0 2.0-20.0 2.0 1.0 2.02803-CDLF-1995GW-11 8/12/2002 HSA 773027.15 2943464.85 Surficial 6.41 2.74 20.0 2.0-20.0 2.0 1.0 2.02803-CDLF-1995GW-12 8/13/2002 HSA 773495.49 2943656.65 Surficial 2.8 0.33 20.0 3.0-20.0 1.5 1.0 2.02803-CDLF-1995GW-13 1/24/2006 Mud Rotary 774019.56 2942163.28 Surficial 3.09 0.7 20.0 5.0-20.0 3.0 1.0 2.02803-CDLF-1995GW-14 1/24/2006 Mud Rotary 773577.80 2942224.90 Surficial 3.06 0.52 20.0 5.0-20.0 3.0 1.0 2.02803-CDLF-1995GW-15 1/24/2006 Mud Rotary 772922.37 2942289.76 Surficial 3.24 0.85 20.0 5.0-20.0 3.0 1.0 2.02803-CDLF-1995GW-16 9/1/2010 HSA 775129.98 2942464.11 Surficial 5.56 3.520.0 5.0-20.0 3.0 1.0 2.02803-CDLF-1995GW-17 9/1/2010 HSA 772722.10 2942873.18 Surficial 2.85 0.820.0 5.0-20.0 3.0 1.0 2.0Notes:1. HSA - Hollow-stem auger2. bgs - below ground surface3. msl - mean sea level4. Horizontal Control - North American Datum 1983 State Plane Feet North CarolinaFacility Permit Number Monitoring Well CodeAquifer Monitoring IntervalDrilling MethodCompletion DateNorthing EastingPage 1 of 1May 2017
Table 2Water Quality Measurements and Total Dissolved SolidsFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberMonitoring Well CodepH (S.U.)Conductivity (µS/cm)Temperature (degrees Celsius)Turbidity (NTUs)Dissolved Oxygen (mg/L)Oxidation-Reduction Potential (mVs)TDS (mg/L)TOC Elevation (feet AMSL)Depth to Groundwater (feet)Groundwater Elevation (feet AMSL)28-03 MW-1 7.5 2,590 14 71 8.09 196 2,750 1.61 1.98 -0.3728-03 MW-2 6.9 756 16 65 0.42 -37 499 1.55 2.48 -0.9328-03 MW-3 6.7 849 17 134 0.48 65 896 1.74 3.82 -2.0828-03 MW-8 6.3 4,120 13 235 0.58 241 3,840 2.90 2.75 0.1528-03 MW-9 6.0 143 18 94 -- 61 183 4.99 6.12 -1.1328-03 MW-10 6.3 593 18 29 0.66 -9 588 2.87 5.29 -2.4228-03 MW-11 6.4 865 17 79 0.63 26 1,400 3.56 4.65 -1.0928-03 MW-12 5.5 96 17 8 1.34 116 111 2.80 4.11 -1.3128-03 MW-13 6.5 724 15 130 0.45 41 802 2.96 3.70 -0.7428-03 MW-14 6.1 577 14 189 0.66 44 459 2.96 4.05 -1.0928-03 MW-15 6.1 191 14 101 0.56 182 250 3.17 4.33 -1.1628-03 MW-16 6.3 1,333 16 59 0.76 20 2,100 5.56 5.41 0.1528-03 MW-17 5.1 142 16 43 1.31 110 154 2.85 4.50 -1.6528-03 SW-1 7.7 609 17 43 9.25 -- 48428-03 SW-2 7.2 634 16 36 7.32 -- 53628-03 SW-3 7.3 650 17 40 7.44 -- 591Notes:1. mg/L - milligrams per liter2. µS/cm - Microsiemens per centimeter3. TDS - Total Dissolved Solids4. AMSL - Above Mean Sea Level5. TOC - Top of Casing6. S.U. - Standard Unit7. mVs - Millivolts8. NTUs - Nephelometric Turbidity Units9. -- Not measuredWater Quality ParametersGroundwater Elevations - 2/22/17Page 1 of 1May 2017
Table 3aDetected Groundwater Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberMonitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneCarbon DisulfideChlorobenzeneChloromethaneEthylbenzeneTetrahydrofuranTolueneAlkalinity Chloride Sulfate 1* 10 700 4* 2 10 1* 1,000 300 15 50 1 100 20 20 0.2* 0.3* 1,000 6,000 1 700 50 3 600 NE 600 NS 250 2506 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 100 3 1 1 NE 1 NE NE 2502803-CDLF-1995 MW-1 22-Aug-11 2.7J 48.1J 0.10J 1.6J 0.57J 2.5J46,0500.60J5522.5J 7.3J3J3.9J2391,07058.8J2803-CDLF-1995 MW-1 16-Feb-12 2.2J 42.2J 0.09J 1.6J 0.39J 1.9J49,4000.47J5782J 6.7J2.3J1.8J2961,00045.2J2803-CDLF-1995 MW-1 14-Aug-12 1.5J 42.9J 0.13J 0.85J 0.20J 1.9J46,550 4732J 5.5J1J1527390664.5J2803-CDLF-1995 MW-1 28-Feb-13 0.15J 3.3J 76.9J 0.71J 3.4J 0.81J 3J99,7001.5J5263.2J 7.5J6J6.6J25497561.5J2803-CDLF-1995 MW-1 30-Sep-13 0.11J 2.4J 34.1J 0.06J 0.16J 1.7J20,5400.03J3410.04J 2.2J 7.1J3J2J27695027.3J2803-CDLF-1995 MW-1 17-Feb-14 0.04J 3.9J 18.8J 0.43J 0.25J 2.6J8,8500.12J2476.3J 15 0.03J 0.26J 1.6J19986039.1J2803-CDLF-1995 MW-1 26-Aug-14 2.3J 42.8J 0.06J 1.2J 0.18J 2.0J28,125 5282.2J 110.69J1.6J25032438.9J2803-CDLF-1995 MW-1 27-Feb-15 3.0J 28.6J 0.04J 0.43J 0.16J 2.5J12,8700.18J1092.4J 9.2J1.0J2.8J18696837.7J2803-CDLF-1995 MW-1 26-Oct-15 0.08J 4.2J 35.3J 0.06J 0.26J 0.27J 2.4J7,7600.18J684.2J 19 0.01J 0.03J0.50J2.2J1741,06034.4J2803-CDLF-1995 MW-1 29-Feb-16 0.14J 3.3J 33.7J 0.10J 0.19J 2.7J15,5710.09J1173.8J0.36J1741,22037.1J2803-CDLF-1995 MW-1 16-Aug-16 4.5J 60.0J 0.11J 0.61J 0.22J 2.9J53,486 6853.8J 0.92J1.1J1.20 2731,29058.4J2803-CDLF-1995 MW-1 22-Feb-17 3.1J 34.5J 0.10J 0.22J 6.3J16,0000.26J1733.4J0.48J141491,22029.3J2803-CDLF-1995 MW-2 22-Aug-11 0.21J 7.8J 0.14J 0.72J16,1600.06J2821.2J 0.26J1.4J2J388 392803-CDLF-1995 MW-2 16-Feb-12 0.32J 12.9J 0.06J 0.94J 0.18J 1.5J45,4000.43J3440.88J 0.26J1.9J2.8J393 372803-CDLF-1995 MW-2 14-Aug-12 8.7J 0.05J 0.12J 1.0J23,480 2621.2J0.39J11378 38 10.9J2803-CDLF-1995 MW-2 28-Feb-13 0.31J 0.59J 45.8J 0.20J 0.14J 1.4J 0.15J 10204,1003.1J3991.5J 0.51J3.9J46353 46 12.6J2803-CDLF-1995 MW-2 30-Sep-13 0.05J 0.22J 8.3J 0.03J 0.13J 0.40J21,1500.03J2190.04J 1.4J 0.53J3.3J1.8J404 43 16.4J2803-CDLF-1995 MW-2 17-Feb-14 0.10J 8.7J 0.14J 0.18J 0.77J14,9000.08J3544.4J 1.3J 0.04J0.50J2.0J379 46 10.4J2803-CDLF-1995 MW-2 26-Aug-14 8.0J 0.42J 0.14J 0.44J12,875 3111.2J0.68J1.3J368 45 10.4J2803-CDLF-1995 MW-2 27-Feb-15 0.56J 0.24J 10.1J 0.97J13,1300.22J3241.3J 0.63J0.86J6.6J333 572803-CDLF-1995 MW-2 26-Oct-15 0.06J 8.0J 0.03J 0.05J 0.17J 1.7J11,3490.30J1992.0J 1.1J 0.01J0.65J3.3J312 482803-CDLF-1995 MW-2 29-Feb-16 12.3J 0.05J 0.13J 0.63J26,5220.07J3641.8J 0.97J0.71J2.2J312 602803-CDLF-1995 MW-2 16-Aug-16 8.0J 0.13J 0.32J18,052 3631.8J 1.0J0.96J322 582803-CDLF-1995 MW-2 22-Feb-17 12.5J 0.06J 0.14J 0.51J25,3250.11J3811.4J 1.0J0.52J2.4J235 65 10.8J2803-CDLF-1995 MW-3 22-Aug-11 0.18J 13.0J 0.11J 0.04J 0.18J 0.72J25,4000.08J3551.2J1.1J3.6J391 35 12.1J2803-CDLF-1995 MW-3 16-Feb-12 10.7J 0.11J 0.04J 0.22J 0.15J 0.28J25,2750.07J3980.77J0.71J408 342803-CDLF-1995 MW-3 14-Aug-12 13.8J 0.10J 0.04J 0.28J 0.16J 0.64J25,325 2441.6J 0.13J 6.9J416 38 18.2J2803-CDLF-1995 MW-3 28-Feb-13 0.04J 0.48J 31.1J 0.32J 0.09J 1.0J 0.20J 0.24J81,8500.12J5531.9J 0.67J1.5J2.1J473 56 108J2803-CDLF-1995 MW-3 30-Sep-13 0.04J 0.49J 15.4J 0.11J 0.15J 0.40J30,090 3730.04J 1.7J 0.63J3.1J1.6J478 50 56.4J2803-CDLF-1995 MW-3 17-Feb-14 0.44J 20.5J 0.18J 1.2J 0.25J 0.48J53,8750.04J6146.3J 2.0J0.76J1.9J448 58 100J2803-CDLF-1995 MW-3 26-Aug-14 0.27J 18.4J 0.11J 1.2J 0.17J 0.23J20,700 5231.5J 1.0J0.38J0.85J443 29 77.0J2803-CDLF-1995 MW-3 27-Feb-15 0.18J 0.72J 42.8J 0.26J 0.04J 0.90J 0.18J 0.38J49,125 6251.8J 1.4J1.1J1.9J379 75 124J2803-CDLF-1995 MW-3 26-Oct-15 0.06J 0.38J 19.1J 0.12J 0.06J 0.91J 0.25J 0.61J12,6290.17J3813.0J 2.2J 0.01J0.59J2.3J400 67 98.5J2803-CDLF-1995 MW-3 29-Feb-16 44.8J 0.39J 0.33J 0.17J 0.52J85,5500.06J5522.0J 0.90J0.92J344 55 32.1J2803-CDLF-1995 MW-3 16-Aug-16 0.77J 24.7J 0.75J 0.07J 0.86J 0.19J 0.58J32,375 6292.6J 2.0J 0.06J0.90J389 72 69.0J2803-CDLF-1995 MW-3 22-Feb-17 23.2J 0.13J 1.5J 0.35J 0.44J17,647 7192.7J 2.2J0.39J414 99 148J2803-CDLF-1995 MW-8 22-Aug-11 4.2J 253 0.74J 4.5J 0.12J 7.7J31,1250.11J1011.3J 0.05J8.4J3.1J1282,724213J2803-CDLF-1995 MW-8 16-Feb-12 3.3J 237 0.5J 3.6J 0.24J 6.0J24,1500.16J1661.8J 145.4J2.7J1792,699166J2803-CDLF-1995 MW-8 14-Aug-12 0.04J 4.1J 192 0.96J 5.4J 0.15J 5.1J35,1500.17J951.6J 1611.1J5.2J1572,693191J2803-CDLF-1995 MW-8 28-Feb-13 9J 197 0.47J 3.6J 0.28J 8.0J20,950 1301.8J6.3J2.4J1773,049191J2803-CDLF-1995 MW-8 30-Sep-13 0.05J 5.2J 215 0.32J 2.8J 0.15J 4.9J41,4800.04J720.04J 1.6J 194.1J3.6J1732,724171J2803-CDLF-1995 MW-8 17-Feb-14 0.12J 213 0.24J 2.2J 0.18J 107,5250.31J1793.8J2.2J7.6J1292,700187J2803-CDLF-1995 MW-8 26-Aug-14 5.2J 239 0.27J 3.5J 0.14J 1134,150 1922.1J25 1.7J6.6J1442,360140J2803-CDLF-1995 MW-8 27-Feb-15 7J 321 0.52J 2.7J 0.15J 8.8J20,4750.43J2061.9J7.0J10742,620180J2803-CDLF-1995 MW-8 26-Oct-15 0.12J 8J 23.1J 0.23J 2.1J 0.20J 8.0J35,8830.27J2362.6J 0.03J 0.05J1.8J7.8J73 53 119J2803-CDLF-1995 MW-8 29-Feb-16 263 0.35J 2.4J 0.17J 8.6J23,1450.39J2610.06J 2.2J2.5J111292,800133J2803-CDLF-1995 MW-8 16-Aug-16 9J 198 0.30J 3.7J 0.18J 8.8J41,3150.10J2572.2J3.3J3.9J1312,560112J2803-CDLF-1995 MW-8 22-Feb-17 0.07J 7.1J 228 0.83J 0.24J 4.9J 0.23J 1143,3001.4J2452.6J 0.10J10.4J251232,55080.5JVolatile Organic CompoundsNorth Carolina 2L or Groundwater Protection StandardSolid Waste Section LimitMetalsGeneral ChemistryPage 1 of 6May 2017
Table 3aDetected Groundwater Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberMonitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneCarbon DisulfideChlorobenzeneChloromethaneEthylbenzeneTetrahydrofuranTolueneAlkalinity Chloride Sulfate 1* 10 700 4* 2 10 1* 1,000 300 15 50 1 100 20 20 0.2* 0.3* 1,000 6,000 1 700 50 3 600 NE 600 NS 250 2506 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 100 3 1 1 NE 1 NE NE 250Volatile Organic CompoundsNorth Carolina 2L or Groundwater Protection StandardSolid Waste Section LimitMetalsGeneral Chemistry2803-CDLF-1995 MW-9 22-Aug-112135.8J 0.18J 0.16J 6.1J5.6J2.8J194,7502.6J1627.1J 1.0J 0.12J9.4J4738 12 194J2803-CDLF-1995 MW-9 16-Feb-12 0.21J24947.4J 0.45J 0.18J14 3.2J5.1J68,0758.1J693.6J 1.5J 0.07J 0.08J312111 16 120J2803-CDLF-1995 MW-9 14-Aug-12 0.12J3625.3J 0.26J 0.20J 6.4J3.6J3.3J9,7253.5J 37J 0.02J 4.1J 0.72J0.21J 11.5J2221 16 74.6J2803-CDLF-1995 MW-9 28-Feb-132227.3J 0.18J 0.08J 7.6J1.9J3.3J14,4705.2J 27J 3.3J 0.91J 0.10J13.9J1076 7 35.8J2803-CDLF-1995 MW-9 30-Sep-13 0.12J2821.8J 0.18J 0.17J 4.2J1.9J2.9J24,6502.2J 27J 0.03J 3.5J 1.4J 0.07J11.9J1157 12 62.1J2803-CDLF-1995 MW-9 17-Feb-14 0.04J1023.3J 0.17J 0.13J 6.2J1.8J2.6J6,1153.4J 36J 3.3J 1.7J 0.05J9.1J7.0J31 7 37.6J2803-CDLF-1995 MW-9 26-Aug-14 0.21J6315.2J 0.14J 0.12J 6.1J2.1J5.1J13,1153.3J 32J 3.2J 2.7J19.7J14 14.00J71 11 32.4J2803-CDLF-1995 MW-9 27-Feb-151228.3J 0.18J 0.15J 7.1J1.9J3.2J7,2254.4J 33J 3.0J 1.2J12.1J1111 5 124J2803-CDLF-1995 MW-9 26-Oct-15 0.15J2015.9J 0.10J 0.18J 5.9J1.1J2.7J5,8192.6J 18J 2.5J 1.1J 0.03J 0.08J13.1J5.8J72 22.4J2803-CDLF-1995 MW-9 29-Feb-16 0.18J4718.8J 0.19J 0.24J 9.4J2.3J4.2J20,8593.7J 34J 0.08J 3.8J 1.6J 0.07J311415 13 51.8J2803-CDLF-1995 MW-9 16-Aug-16 0.12J3138.1J 0.26J 0.23J13 1.5J4.6J10,4698.2J 32J 3.7J 0.88J 0.15J21.9J1757 72803-CDLF-1995 MW-9 22-Feb-17 0.17J12235.3J 0.30J 0.17J12 1.4J4.5J21,9508.3J 30J 3.5J 1.6J 0.12J321343 13 33.8J2803-CDLF-1995 MW-10 22-Aug-11 0.26J 5.8J 63.1J 0.22J 0.11J 3.9J 0.51J 1.3J116,2501.0J5672.3J 1.1J 0.05J7.5J5.3J209 346262803-CDLF-1995 MW-10 16-Feb-121042.5J 0.25J 0.12J 3.2J2J1.4J68,4751.3J6176.7J 1.1J 0.07J8.5J1445 393,3652803-CDLF-1995 MW-10 14-Aug-12 0.10J1143.5J 0.10J 0.10J 1.2J 0.79J 1.7J8,8751.4J4404.2J 0.55J 0.37J5.7J6.4J250 75842803-CDLF-1995 MW-10 28-Feb-131620.8J 0.13J 0.05J 1.8J 0.43J 2.5J36,3005.7J1112.4J 0.52J20.6J2.9J196 8 93.5J2803-CDLF-1995 MW-10 30-Sep-13 0.05J 6.4J 42.7J 0.08J 0.07J 0.81J 0.38J 0.77J19,3400.15J1930.05J 2.9J 0.90J7.3J3.6J224 102972803-CDLF-1995 MW-10 17-Feb-14 3.9J 20.1J 0.06J 0.60J 0.34J 0.68J7,2750.09J1887.2J 0.78J1.4J0.87J251 5 77.8J2803-CDLF-1995 MW-10 26-Aug-14 0.85J1135.1J 0.09J 0.06J 2.2J 0.51J 0.61J14,1450.41J2262.4J 0.93J8.2J3.0J304 7 103J2803-CDLF-1995 MW-10 27-Feb-15 8J 11.6J 0.05J 0.76J 0.27J 0.22J16,875 941.3J 0.57J2.8J0.61J150 5 63.4J2803-CDLF-1995 MW-10 26-Oct-151.1J 1327.1J 0.11J 0.21J 2.2J 0.51J 1.9J18,4281.3J1620.07J 3.6J 0.82J 0.06J 0.05J9.9J6.5J185 7 96.0J2803-CDLF-1995 MW-10 29-Feb-16 0.05J1118.2J 0.08J 0.07J 1.7J 0.62J 1.2J35,5080.93J1443.0J 0.70J4.4J2.8J126 22 151J2803-CDLF-1995 MW-10 16-Aug-16 0.06J1227.3J 0.06J 0.05J 1.3J 0.42J 0.51J43,1300.26J2213.2J 0.67J4.8J3.2J271 18 109J2803-CDLF-1995 MW-10 22-Feb-171616.4J 0.07J 0.09J 0.7J 0.44J 0.28J53,0440.14J2062.4J 0.73J4.0J2.3J221 21 134J2803-CDLF-1995 MW-11 22-Aug-11 1.7J 50.1J 0.07J 0.10J 2.1J 0.74J 1.3J18,8801.4J2571.5J 0.41J 0.08J3.6J5.6J93 472572803-CDLF-1995 MW-11 16-Feb-12 5.1J 72.4J 0.13J 0.16J 2.2J2.7J1.5J54,1251.6J2953.6J 0.35J 0.04J4.7J9J48 603762803-CDLF-1995 MW-11 14-Aug-12 0.06J 5.8J 35.6J 0.11J 0.16J 1.8J1.3J1.6J10,9651.2J1003.0J 0.43J3.8J7.3J83 23 192J2803-CDLF-1995 MW-11 28-Feb-13 2.6J 38.5J 0.11J 0.09J 1.4J1.0J1.1J18,2100.57J963.0J 0.63J3.4J3.4J141 332972803-CDLF-1995 MW-11 30-Sep-13 0.07J 2.6J 39.9J 0.05J 0.07J 0.46J 0.45J 1.6J8,0900.30J930.05J 2.6J 0.65J4.8J6.2J123 202592803-CDLF-1995 MW-11 17-Feb-14 2.3J 27.6J 0.06J 1.4J 0.64J 0.54J18,9000.13J993.0J 0.51J2.8J59 12 133J2803-CDLF-1995 MW-11 26-Aug-14 0.24J 3.9J 25.6J 0.11J 0.06J 2.7J 0.96J 1.3J7,0200.81J672.0J 0.75J4.9J5.9J98 8 55.8J2803-CDLF-1995 MW-11 27-Feb-15 3.0J 34.4J 0.07J 0.04J 2.0J 0.42J 0.24J12,775 751.6J 0.34J3.8J1.5J64 12 96.7J2803-CDLF-1995 MW-11 26-Oct-15 0.46J 7J 35.0J 0.12J 0.26J 2.8J2.3J3.9J11,3373.3J723.3J 0.75J 0.03J 0.12J5.4J1383 12 48.9J2803-CDLF-1995 MW-11 29-Feb-16 0.39J 8J 30.6J 0.13J 0.09J 2.1J1.5J2.2J14,5711.5J772.9J 0.57J 0.09J5.3J7.6J80 20 77.3J2803-CDLF-1995 MW-11 16-Aug-16 0.08J 4.4J 31.8J 0.10J 0.11J 2.1J1.6J1.7J6,0211.2J802.9J 0.92J5.2J7.6J105 82803-CDLF-1995 MW-11 22-Feb-17 0.58J 8.4J 96.4J 0.26J 0.16J110.99J 1.4J36,3360.27J3125.4J 1.9J4.7J6.7J118 315102803-CDLF-1995 MW-12 22-Aug-11 5.5J 59.8J 0.10J 0.07J 1.2J 0.54J 0.85J26,7000.74J5792.3J 0.34J 0.03J3.7J6.5J209 512803-CDLF-1995 MW-12 16-Feb-12 3.3J 43.6J 0.1J 0.04J 1.4J 0.93J 0.94J11,6851.3J2532.2J 0.24J 0.08J3.6J4.1J49 38 14.6J2803-CDLF-1995 MW-12 14-Aug-12 2.9J 45.4J 0.10J 0.09J 0.97J 0.89J 1.1J25,8250.53J3673.1J 0.24J2.0J8.2J100 27 19.7J2803-CDLF-1995 MW-12 28-Feb-13 0.19J 5.5J 38.6J 0.29J 0.10J 3.4J 0.82J 2.9J13,8304.2J 48J 0.02J 2.8J 0.32J11.7J8.3J4 10 22.7J2803-CDLF-1995 MW-12 30-Sep-13 0.05J 1.1J 40.8J 0.11J 0.08J 0.46J 1.3J4740.31J 22J 0.04J 1.6J 0.40J 0.04J3.3J4.5J2 25 14.3J2803-CDLF-1995 MW-12 17-Feb-14 0.09J 54.5J 0.06J 0.08J 0.66J 0.67J 1.1J3400.30J572.4J 0.52J 0.16J 3.1J1.0 31 18.0J2803-CDLF-1995 MW-12 26-Aug-14 0.14J 1.6J 42.2J 0.14J 0.07J 1.9J 1.0J 1.4J4,2101.5J884.8J 0.52J3.5J8.5J4 24 21.5J2803-CDLF-1995 MW-12 27-Feb-15 0.85J 36.0J 0.11J 0.06J 1.2J 0.39J 1.3J5680.92J 39J 1.7J 0.41J2.4J5.7J7 11 11.3J2803-CDLF-1995 MW-12 26-Oct-15 0.17J 1.5J 30.9J 0.12J 0.12J 1.9J 0.81J 1.3J4,4681.2J 41J 3.0J 0.75J 0.03J 0.04J3.2J7.1J232803-CDLF-1995 MW-12 29-Feb-16 0.06J 0.77J 23.1J 0.10J 1.4J 0.55J 0.86J3,3410.68J 37J 2.6J 0.08J2.0J3.5J4 19 5.3J2803-CDLF-1995 MW-12 16-Aug-16 0.09J 1.4J 16.6J 0.09J 0.09J 1.8J 0.41J 3.2J3,0871.6J 30J 2.2J4.2J5.4J6 162803-CDLF-1995 MW-12 22-Feb-17 0.05J 1.3J 20.2J 0.07J 0.86J 0.78J 0.71J8,3000.77J1384.3J 0.75J2.7J3.2J7 20Page 2 of 6May 2017
Table 3aDetected Groundwater Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberMonitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneCarbon DisulfideChlorobenzeneChloromethaneEthylbenzeneTetrahydrofuranTolueneAlkalinity Chloride Sulfate 1* 10 700 4* 2 10 1* 1,000 300 15 50 1 100 20 20 0.2* 0.3* 1,000 6,000 1 700 50 3 600 NE 600 NS 250 2506 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 100 3 1 1 NE 1 NE NE 250Volatile Organic CompoundsNorth Carolina 2L or Groundwater Protection StandardSolid Waste Section LimitMetalsGeneral Chemistry2803-CDLF-1995 MW-13 18-Oct-11 2.7J 30.0J 0.10J 0.11J 2.5J 0.59J 0.78J21,1000.51J2,6721.3J 0.59J 0.03J2.8J4.9J296 43 7.9J2803-CDLF-1995 MW-13 16-Feb-12 0.25J 3.8J 31.4J 0.08J 0.08J 1.4J 0.26J 0.27J40,8750.31J3510.11J 0.93J 0.34J 0.03J2.5J1.6J343 46 12.9J2803-CDLF-1995 MW-13 14-Aug-12 3.4J 28.8J 0.08J 1.2J 0.14J 0.61J33,860 2110.85J 0.38J1.6J7.7J253 46 20.0J2803-CDLF-1995 MW-13 28-Feb-13 0.29J32122 1 0.40J20 5.8J6.3J200,400 16 3790.05J 11.7J 1.2J0.32J 46140209 57 52.8J2803-CDLF-1995 MW-13 30-Sep-13 0.24J 2.6J 40.7J 0.08J 0.91J 0.17J 0.54J76,0500.11J3290.05J 1.1J 1J 0.04J 0.06J1.9J1.3J193 80 218J2803-CDLF-1995 MW-13 17-Feb-14 1.9J 54.2J 0.03J 0.08J 1.2J 0.18J 0.67J47,8250.05J3533.1J 1.1J 0.04J 0.04J0.57J1.2J159 84 163J2803-CDLF-1995 MW-13 26-Aug-14 0.62J 22.3J 0.47J 0.16J 0.35J17,438 3571.4J 0.60J0.78J1.9J373 57 52.9J2803-CDLF-1995 MW-13 27-Feb-15 0.67J 3.2J 78.4J 0.14J 0.34J 1.2J 0.29J 0.78J67,7250.68J4261.7J 0.66J 0.04J3.0J12 13.60J309 74 115J2803-CDLF-1995 MW-13 27-Oct-15 0.06J 0.55J 23.6J 0.02J 0.06J 0.21J 0.38J16,2000.17J3782.5J 0.91J0.72J2.8J332 67 117J2803-CDLF-1995 MW-13 29-Feb-16 0.08J 2.5J 86.5J 0.58J 0.14J 0.67J 0.20J 0.62J122,9920.23J4842.4J 2.4J2.1J4.3J286 74 126J2803-CDLF-1995 MW-13 17-Aug-16 0.97J 28.3J 0.06J 0.08J 0.30J 0.64J23,9520.42J5413.0J 1.4J1.5J5.9J320 78 181J2803-CDLF-1995 MW-13 23-Feb-17 41.7J 0.07J 0.26J 0.43J25,7440.22J5242.6J 1.0J0.82J3.5J197 87 214J2803-CDLF-1995 MW-14 18-Oct-113376.8J 0.54J 0.26J 6.2J 0.40J 0.57J74,7000.63J1881.0J 0.50J12.0J3.5J243 382803-CDLF-1995 MW-14 16-Feb-12 3.3J 29.3J 0.04J 1.9J 0.2J 0.7J32,2500.18J2060.88J1.8J1.9J273 362803-CDLF-1995 MW-14 14-Aug-12 3.6J 42.3J 0.09J 1.4J 0.15J 0.64J50,075 2200.94J 0.26J1.3J23226 39 96.4J2803-CDLF-1995 MW-14 28-Feb-13 0.22J74218 2 0.52J26 6.0J7.1J449,500 23 3150.08J 12.4J 1.2J 0.12J0.43J 53129153 53 175J2803-CDLF-1995 MW-14 30-Sep-13 0.14J1066.1J 0.10J 0.05J 3.2J 0.33J 0.71J96,1500.53J1860.04J 1.1J 0.62J 0.04J3.4J3.7J228 272532803-CDLF-1995 MW-14 17-Feb-14 3.7J 82.7J 0.07J 0.09J 2.2J 0.18J 0.68J93,5000.15J4032.3J 0.67J 0.04J1.9J1.8J167 53 194J2803-CDLF-1995 MW-14 26-Aug-141297.0J 0.17J 0.06J 3.5J 0.34J 0.81J75,3500.67J2591.2J 0.32J3.9J5.0J164 39 148J2803-CDLF-1995 MW-14 27-Feb-15 0.20J 9J 78.0J 0.12J 0.09J 3.3J 0.49J 0.85J54,7750.94J3111.6J 0.59J3.9J6.1J118 45 96.1J2803-CDLF-1995 MW-14 27-Oct-15 0.06J1590.4J 0.17J 0.10J 3.6J 0.56J 1.0J80,1831.4J2191.5J 0.536J 0.02J4.4J9.5J60 56 165J2803-CDLF-1995 MW-14 29-Feb-16 0.08J1679.4J 0.62J 0.15J 3.6J 0.65J 2.4J90,6321.6J3932.7J 2.2J4.7J9.5J83 49 141J2803-CDLF-1995 MW-14 17-Aug-16 9J 77.2J 0.05J 2.1J 0.17J 0.42J69,5640.19J2321.0J 0.62J2.0J2.3J73 63 184J2803-CDLF-1995 MW-14 23-Feb-171282.2J 0.22J 0.09J 2.73J 0.39J 0.7J89,8260.70J3861.7J 0.83J3.6J5.7J119 43 204J2803-CDLF-1995 MW-15 18-Oct-111343.0J 0.26J 0.23J 3.5J1.3J1.6J43,0252.1J2922.7J 0.28J 0.05J4.7J354191 29 30.2J2803-CDLF-1995 MW-15 16-Feb-12 5.3J 24.9J 0.07J 0.09J 0.9J 0.33J 0.3J29,1250.38J2260.62J1.2J78143 30 23.4J2803-CDLF-1995 MW-15 14-Aug-121128.3J 0.11J 0.13J 0.27J 0.12J 0.80J32,0000.12J990.86J 0.07J 0.22J 7292 28 28.3J2803-CDLF-1995 MW-15 28-Feb-13 0.16J65223 2 0.58J28 6.8J8.0J281,600 30 3540.08J 14.2J 1.5J 0.13J0.39J 6359177 47 179J2803-CDLF-1995 MW-15 30-Sep-13 0.08J1350.1J 0.13J 0.52J 0.27J 0.57J38,0000.11J1100.03J 0.92J 0.35J 0.03J1.1J9878 37 26.6J2803-CDLF-1995 MW-15 17-Feb-14 6.0J 23.6J 0.07J 0.06J 1.1J 0.09J 0.54J31,3750.05J1600.72J0.58J2469 28 25.4J2803-CDLF-1995 MW-15 26-Aug-14 0.13J1138.0J 0.17J 1.5J 0.33J 0.49J26,3750.49J116 1.11.5J1.3J3564 26 25.1J2803-CDLF-1995 MW-15 27-Feb-151539.5J 0.18J 0.05J 1.1J 0.18J 0.34J43,6250.34J1620.59J 0.18J1.7J3677 28 39.8J2803-CDLF-1995 MW-15 27-Oct-15 0.02J 5.8J 37.2J 0.10J 0.02J 0.09J 0.21J19,103 1250.37J0.34J35137 27 16.0J2803-CDLF-1995 MW-15 29-Feb-161644.3J 0.50J 0.08J 0.96J 0.17J 0.40J50,6740.24J1750.82J 1.1J0.66J4052 29 30.6J2803-CDLF-1995 MW-15 17-Aug-161237.3J 0.20J 0.95J 0.12J 0.29J33,9010.18J1570.42J0.84J2424 30 29.0J2803-CDLF-1995 MW-15 23-Feb-171335.9J 0.18J 0.66J 0.28J 0.25J42,2800.98J1920.89J3.1J4777 28 22.4J2803-CDLF-1995 MW-16 18-Oct-11 0.15J 3.7J 278 0.48J 3.9J 0.38J 7.6J29,4250.22J892.1J5.5J3.7J1543,099207J2803-CDLF-1995 MW-16 16-Feb-12 6.6J 283 0.36J 3.2J 0.17J 6.1J24,1750.06J1081.8J21 4.7J1J1632,824 2552803-CDLF-1995 MW-16 14-Aug-12 0.12J 8J 472 0.38J 3.1J 0.26J 8.2J27,3130.16J812.2J300.07J4.2J6.2J1333,539177J2803-CDLF-1995 MW-16 28-Feb-13 0.16J12308 0.26J 2.9J 0.37J 9.2J46,050 3073.6J31 3.6J2.7J3042,799178J2803-CDLF-1995 MW-16 30-Sep-13 0.10J 6.2J 366 0.44J 3.4J 0.21J 7.7J45,8000.09J1450.03J 1.8J240.03J4.6J3.6J1543,374 2672803-CDLF-1995 MW-16 17-Feb-14 0.02J10200 0.35J 3.3J 0.32J 5.8J23,6750.02J2715.6J34 4.7J0.74J4021,120 3502803-CDLF-1995 MW-16 26-Aug-14 3.5J 347 0.22J 3.8J 0.18J 3.8J71,075 2402.0J 164.2J1.2J143855128J2803-CDLF-1995 MW-16 27-Feb-15 0.17J 3.1J 219 0.17J 2.5J 0.44J 2.8J23,900 3963.7J 8.3J3.9J2.9J529792196J2803-CDLF-1995 MW-16 27-Oct-15 0.10J 4.3J 244 0.22J 3.0J 0.32J 2.8J58,3250.16J2830.06J 3.5J 0.03J3.6J4.2J751,38096.5J2803-CDLF-1995 MW-16 29-Feb-16 0.08J 4.9J 284 0.62J 2.1J 0.24J 4.9J57,917 2652.6J2.8J2.1J1631,36084.2J2803-CDLF-1995 MW-16 17-Aug-16 0.07J 8J 282 0.34J 5.7J 1.3J 4.8J70,6421.5J2633.6J6.6J8.9J0.80J 691,630118J2803-CDLF-1995 MW-16 23-Feb-17 0.06J 4.1J 213 0.28J 1.8J 0.18J 2.8J42,040 2912.3J 154.9J2.3J2921,0708.4JPage 3 of 6May 2017
Table 3aDetected Groundwater Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberMonitoring Well CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneCarbon DisulfideChlorobenzeneChloromethaneEthylbenzeneTetrahydrofuranTolueneAlkalinity Chloride Sulfate 1* 10 700 4* 2 10 1* 1,000 300 15 50 1 100 20 20 0.2* 0.3* 1,000 6,000 1 700 50 3 600 NE 600 NS 250 2506 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 100 3 1 1 NE 1 NE NE 250Volatile Organic CompoundsNorth Carolina 2L or Groundwater Protection StandardSolid Waste Section LimitMetalsGeneral Chemistry2803-CDLF-1995 MW-17 18-Oct-113063.5J 1 0.33J 2.9J3.7J1.4J47,8751.8J1947.9J 0.91J 0.03J8.3J957192872803-CDLF-1995 MW-17 16-Feb-12 4.1J 36.8J 0.9J 0.21J 1.8J3.1J1.1J7,7481.4J986.3J 0.51J2.1J382223722803-CDLF-1995 MW-17 14-Aug-121143.5J 0.80J 0.19J 2.5J2.9J1.1J30,8001.5J897.8J 0.69J6.1J2014 23 225J2803-CDLF-1995 MW-17 28-Feb-13 0.04J 1.3J 31.1J 0.36J 0.10J 1.1J3.8J1.6J8,4801.1J535.9J 0.60J 0.08J1.9J1031 15 140J2803-CDLF-1995 MW-17 30-Sep-13 0.09J 6J 17.3J 0.11J 0.05J 1.6J 0.31J 1.2J28,4500.31J930.05J 2.3J 1.3J 0.03J3.6J3361 17 121J2803-CDLF-1995 MW-17 17-Feb-14 0.54J 29.0J 0.18J 0.15J 1.5J1.3J2.3J7380.52J 43J 3.3J 0.73J1.2J8813 114J2803-CDLF-1995 MW-17 26-Aug-14 5.8J 42.6J 0.14J 0.04J 2.2J1.5J1.1J16,0251.3J514.1J 0.69J5.8J4013 11 101J2803-CDLF-1995 MW-17 27-Feb-15 1.2J 31.5J 0.15J 0.10J 1.2J 0.88J 1.5J1,7061.1J 28J 2.2J 0.40J2.8J264 7 19.4J2803-CDLF-1995 MW-17 27-Oct-151.1J2.4J 38.8J 0.22J 0.11J 2.3J 0.76J 1.4J8,4452.2J 38J 0.05J 1.7J 0.80J 0.06J 0.06J4.7J572 8 59.5J2803-CDLF-1995 MW-17 29-Feb-16 0.09J 2.8J 44.2J 0.22J 0.06J 2.1J1.1J2.5J10,3313.8J 35J 2.5J 0.82J7.1J458 19 75.4J2803-CDLF-1995 MW-17 17-Aug-16 0.10J 3.6J 49.8J 0.24J 0.11J 2.7J 0.87J 3.1J8,6743.2J 29J 2.5J 0.58J 0.08J 0.08J5.9J3427 61.0J2803-CDLF-1995 MW-17 23-Feb-17 1.3J 40.0J 0.10J 0.48J 0.51J6,9261.1J 33J 1.7J 0.67J3.6J287 26 51.0JNotes: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 Standard4. NE = Not Established5. NS = No Standard6. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit. - Blank cell indicates the analyte was not detected - Concentration exceeds the 15A NCAC 02L.0202 (North Carolina 2L) or Groundwater Protection Standard Page 4 of 6May 2017
Table 3bDetected Surface Water Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberSurface Water CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneChlorobenzeneChloromethane1,4-DichlorobenzeneTolueneAlkalinityChloride Sulfate 640* 10* 200,000* 6.5 0.15 24 4* 2.7 NS 0.54 NS 0.012 16 5 0.06 0.47* NS 36 2,00051*14096*100 11 NS230**NS10 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 3 1 1 1 1 NE 2502803-CDLF-1995SW-122-Aug-112.8J23.7J0.17J0.54J1.4J274J0.19J6352.5J2.0J2.9J2.4J21439276.3J2803-CDLF-1995SW-116-Feb-122.1J93J0.19J1.0J2.1J4030.17J2013.9J7.2J0.72J0.92J158935170J2803-CDLF-1995SW-114-Aug-122.3J65.1J0.64J2.2J6510.38J2253.4J5.9J0.59J4.7J143717158J2803-CDLF-1995SW-128-Feb-131.7J1.8J13.5J0.85J0.28J1.7J4,2203514J0.82J0.82J2.2J4.8J51452803-CDLF-1995SW-130-Sep-130.09J2.5J31.8J0.09J0.77J0.31J1.7J8320.31J2010.03J2.8J3.1J2.8J2J22430430.2J2803-CDLF-1995SW-117-Feb-140.41J2.1J25.5J0.07J3.0J0.66J2.0J3,5808.7J1453.4J3.3J2.3J4.4J9220838.8J2803-CDLF-1995SW-126-Aug-140.14J2.7J25.7J0.07J1.2J0.36J1.5J2,4268.6J1012.5J3.5J3.3J2.9J17729439.1J2803-CDLF-1995SW-127-Feb-150.44J2.1J32.5J0.27J0.05J3.9J1.4J3.3J5,8856.9J1973.3J1.3J7.7J1212916561.6J2803-CDLF-1995SW-127-Oct-150.18J2.4J26.6J0.17J1.5J0.44J1.3J3,2772.4J1922.3J1.8J4.3J2.6J15217549.4J2803-CDLF-1995SW-129-Feb-160.27J0.70J24.2J0.08J1.2J0.22J1.7J2,9142125J0.88J1.6J1.0J5.1J121538.9J2803-CDLF-1995SW-117-Aug-160.09J2.1J13.8J0.12J1.3J0.24J1.8J7190.50J42J2.1J1.0J4.0J2.1J1651202803-CDLF-1995SW-123-Feb-170.06J1.5J23.1J0.29J0.93J0.40J1.00J4,2341.1J1721.7J1.4J6.5J2.1J16111745.62803-CDLF-1995SW-218-Oct-110.21J3.5J53.3J0.70J0.74J3.3J2,396131532.7J7.4J0.94J9.4J911,170127J2803-CDLF-1995SW-216-Feb-122.9J97.3J0.95J1.4J2.9J2,9684.9J2744.4J6.5J1.2J7.6J143935165J2803-CDLF-1995SW-214-Aug-120.14J3.0J56.0J0.93J0.62J2.0J2,3894.3J1163.0J4.2J0.80J5.4J128549150J2803-CDLF-1995SW-228-Feb-130.49J2.3J35.4J0.11J2.0J1.1J3.2J5,1557.8J1693.1J2.6J3.2J159627653.5J2803-CDLF-1995SW-230-Sep-130.08J2.1J33.8J0.07J0.70J0.28J1.9J1,3580.73J940.03J2.6J3.3J1.8J2.1J20337222.3J2803-CDLF-1995SW-217-Feb-140.33J1.4J23.1J0.04J3.1J0.50J2.6J4,0805.6J1333.0J2.6J2.0J5.8J9319256.1J2803-CDLF-1995SW-226-Aug-140.17J2.3J26.7J0.05J1.1J0.27J1.5J1,2932.4J36J2.7J3.7J2.2J3.3J17529220.7J2803-CDLF-1995SW-227-Feb-150.68J3.6J32.1J0.21J0.05J4.6J1.1J4.0J4,1956.4J1613.2J1.3J5.8J1613214557.6J2803-CDLF-1995SW-227-Oct-150.20J2.5J29.4J0.16J1.8J0.35J1.6J3,5435.5J812.3J2.4J3.5J3.5J14619552.5J2803-CDLF-1995SW-229-Feb-160.30J1.4J21.1J0.29J3.2J0.75J1.9J4,02113932.9J1.8J3.7J4.6J1039423.3J2803-CDLF-1995SW-217-Aug-160.11J2.9J16.7J0.10J1.4J0.21J1.1J1,6041.8J48J1.8J1.7J2.8J1.7J1581282803-CDLF-1995SW-223-Feb-170.07J1.8J31.2J0.27J0.39J1.3J1.4J4,8382.5J1492.1J1.9J6.1J3.8J17812749.5North Carolina 2B Freshwater Aquatic Life or Human Health StandardVolatile Organic CompoundsSolid Waste Section LimitMetalsGeneral ChemistryPage 5 of 6May 2017
Table 3bDetected Surface Water Constituents - Metals, Volatile Organic Compounds, and General ChemistryFebruary 2017 Semi-Annual Sampling EventDare County C&D LandfillPermit Number 2803-CDLF-1995Facility Permit NumberSurface Water CodeSample DateAntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperIronLeadManganeseMercuryNickelSeleniumSilverThalliumVanadiumZincAcetoneBenzeneChlorobenzeneChloromethane1,4-DichlorobenzeneTolueneAlkalinityChloride Sulfate 640* 10* 200,000* 6.5 0.15 24 4* 2.7 NS 0.54 NS 0.012 16 5 0.06 0.47* NS 36 2,00051*14096*100 11 NS230**NS10 10 100 1 1 10 10 10 300 10 50 0.2 50 10 10 5.5 25 10 100 1 3 1 1 1 1 NE 250North Carolina 2B Freshwater Aquatic Life or Human Health StandardVolatile Organic CompoundsSolid Waste Section LimitMetalsGeneral Chemistry2803-CDLF-1995SW-322-Aug-114.5J44.1J0.53J0.93J3.3J1,1422.8J1063.2J6.3J3.2J5.2J178965117J2803-CDLF-1995SW-316-Feb-122.7J94.4J0.64J0.9J2.2J9242.1J2493.8J8.1J0.72J2.9J159910153J2803-CDLF-1995SW-314-Aug-120.17J2.9J55.4J0.86J0.60J1.9J2,2743.6J1172.9J4.6J0.60J4.8J116567144J2803-CDLF-1995SW-328-Feb-130.48J2.2J36.4J0.12J0.04J2.5J1.0J4.1J5,6508.4J1623.1J2.2J4.0J109927043.0J2803-CDLF-1995SW-330-Sep-130.10J4.3J48.7J0.16J1.8J0.97J3.2J9,6406.8J3980.04J3.4J3.2J4.9J1120234222.1J2803-CDLF-1995SW-317-Feb-140.11J2.1J21.1J0.03J2.0J0.43J2.9J2,1982.2J892.7J4.7J1.2J4.0J12931829.6J2803-CDLF-1995SW-326-Aug-140.21J2.7J27.3J0.07J1.3J0.31J1.7J1,8834.2J43J0.452.3J3.7J2.1J4.0J17329039.9J2803-CDLF-1995SW-327-Feb-150.68J3.7J31.5J0.22J0.06J4.6J1.1J4.0J4,0606.4J1563.1J1.4J5.9J1912114069.5J2803-CDLF-1995SW-327-Oct-150.23J2.2J28.3J0.11J1.6J0.36J1.7J3,8795.7J742.2J1.8J3.8J4.5J14219924.8J2803-CDLF-1995SW-329-Feb-160.30J2.0J22.7J0.36J0.05J4.1J0.86J2.0J4,773151193.2J2.2J4.2J5.5J1109233.1J2803-CDLF-1995SW-317-Aug-160.15J2.6J18.7J0.10J1.6J0.26J1.6J2,0233.7J532.1J1.4J2.8J5.5J1591242803-CDLF-1995SW-323-Feb-170.08J1.4J31.8J0.23J0.38J1.4J1.3J4,8372.5J1432.1J1.5J5.8J6.7J16714248.9Notes:1. Metal and volatile organic compound concentrations are in micrograms per liter (parts per billion).2. General chemistry concentrations are in milligrams per liter (parts per million).3. Standards obtained from 15A NCAC 02B (North Carolina 2B) Surface Water Standards for Class C Waters or are National Criteria per the U.S. Environmental Protection Agency (June 2016).4. * - Human Health Standard6. NS = No Standard NE = Not Established7. J - Indicates the analytical result is an estimated concentration between the method detection limit and the Solid Waste Section Reporting Limit. - Blank cell indicates the analyte was not detected - Concentration exceeds the North Carolina 2B Freshwater Aquatic Life or Human Health Standard for Class C WatersPage 6 of 6May 2017

Appendix A
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