7401_PittCountysouthUnitMSWLF_GWMR_20170912

Compounds Detected At or Above the SWSL during the July 2016 Sampling Event (7/6-7/2016)
Southern Unit of the Pitt County Municipal Solid Waste Landfill (Permit #74-01)
Well
ID Date Parameter Results
(µg/L)
MDL
(µg/L)
NC SWSL
(µg/L)
NC 2L or
2B Std*
(µg/L)
GWP Std
(µg/L)
MCL
(µg/L)
MW6R 7/7/2016 Barium Total 1150 1 100 700 -20007/7/2016 Barium Total 917 1 100 700 -20007/6/2016 Benzene 2.5 0.15 1 1 -57/6/2016 1,4-Dichlorobenzene 2.1 0.19 1 6 -757/7/2016 Barium Total 312 1 100 700 -20007/6/2016 Benzene 1.1 0.15 1 1 -5P287/7/2016 Zinc Total 11.5 4.4 10 1000 --SW1 7/7/2016 Zinc Total 13.5 4.4 10 50,000 na -
MDL = Method Detection Limit MCL = Federal Maximum Contaminant LevelNC SWSL = North Carolina Solid Waste Section Limit GWP STD = groundwater protection standard
J = The analyte was positively identified, but the value is estimated below the reporting limit.All concentrations reported in micrograms/liter (µg/L).
Concentrations listed in bold exceeded the NC SWSL. Concentrations highlighted in yellow were detected above the 2L (or 2B) standards.
P16R
P20R
The concentrations of barium in wells MW6R and P16R are believed to be partially attributable to natural
sediment as has been previously demonstrated in the Alternative Source Demonstration Report dated April 20,
2011 and the January 2015 Semi-Annual Water Quality Monitoring Event Report. Barium is ubiquitous in
groundwater samples collected at this site, including all upgradient samples.
The source of benzene in well P16R and P20R is unknown. P16R is located directly upgradient from well P20R
and is an upgradient monitoring location for the Southern Unit of the Pitt County Landfill.
*15A NCAC 2L groundwater standards are listed for all groundwater sampling locations. 15A NCAC 2B standards are listed for surface
water sampling locations (SW1 and SW2).
yellow

TABLE OF CONTENTS

1.0 INTRODUCTION ........................................................................................ 1
2.0 GROUNDWATER HYDROGEOLOGY ............................................................ 1
3.0 SAMPLE COLLECTION AND ANALYTICAL ANALYSES ................................. 2
4.0 ANALYTICAL RESULTS AND DISCUSSSION ............................................... 2
5.0 SCHEDULED ANNUAL MONITORING ......................................................... 4
6.0 REPORT CERTIFICATION .......................................................................... 4
7.0 REFERENCES ............................................................................................. 4

FIGURES

1. Site Layout and Existing Monitoring Network
2. Groundwater and Surface Water Sampling Locations - Southern Unit
3. Equipotential Map, July 11, 2017

TABLES

1. Monitoring Well Construction and Elevations
2. Monitoring Well Water Levels and Sample Purge Volumes
3. Calculations of Groundwater Velocity
4. Water Quality Parameters
5. Appendix I Target Parameters
6. Appendix II Target Parameters
7. List of Compounds Detected during the July 2017 Sampling Event

APPENDICES

A. Letters from the NC Division of Waste Management
B. Laboratory Report and Chain-of-Custody Forms for Water Samples
C. Monitoring Well and Surface Water Sampling Records

1.0 INTRODUCTION

Groundwater Management Associates, Inc. (GMA) performed a semi-annual monitoring event at
the southern unit of the inactive Pitt County Solid Waste Municipal Landfill (Figure 1) on July 11
and 12, 2017. The work was performed by GMA on behalf of Mr. Tim Corley, PE, Pitt County
Engineer. Twenty-two monitoring wells comprise the groundwater-monitoring network (Figure
1, Table 1). The water-quality monitoring network used for the July 2017 semi-annual
monitoring event (Figure 2) consists of two hydraulically-upgradient wells (P4 and P16R), four
hydraulically-downgradient wells (P12, P20R, P28, and MW6R), a hydraulically-upgradient
surface water sample location (SW1), and a hydraulically-downgradient surface water sample
location (SW2). Sampling procedures and analytical methods complied with the approved
Water Quality Monitoring Plan dated September 8, 1994, and subsequent groundwater policy
memos and directives issued by the Solid Waste Section (SWS) of the North Carolina
Department of Environmental Quality (DEQ-DWM).

During the previous semi-annual water quality monitoring event conducted at the site in
January 2017, benzene was detected at concentrations exceeding the NC 2L Groundwater
Standards in two groundwater monitoring wells (P16R and P20R). A 14-Day Notice was
submitted to the NC SWS on March 3, 2017. In order to assess whether benzene has migrated
off the property, GMA proposed to collect pore water samples beneath the southern boundary
ditch in two locations downgradient of monitoring well P20R (Figure 1; Appendix I). The SWS
approved the assessment proposal on March 16, 2017. GMA attempted to collect these two
pore water samples as part of the July 2017 Semi-annual Monitoring event, however, due to the
low water levels in the ditch during this event, only one of the proposed pore water sampling
locations (Pore 2) could be sampled. The analytical results from this sample are included in this
report.

2.0 GROUNDWATER HYDROGEOLOGY

Static water levels (Table 2) were measured in all 22 monitoring wells on July 11, 2017. Depth
to groundwater ranged from approximately 3.35 to 12.87 feet below the land surface. An
equipotential map prepared using these water-level measurements (Figure 3) was very similar
to previous maps prepared for this facility, and indicates that the horizontal component of
groundwater flow at the southern unit was directed to the south and southeast toward the large
ditch forming the southern boundary of the facility. Estimates of groundwater velocity (Table 3)
ranged from approximately 0.001 to 0.020 feet/day, or 0.46 to 7.30 feet/year.

July 2017 Semiannual Water Quality Monitoring Report
Southern Portion of the Pitt County Solid Waste Municipal Landfill
September 12, 2017
Page 2 of 4

3.0 SAMPLE COLLECTION AND LABORATORY ANALYSES

The semi-annual monitoring event occurred on July 11 and 12, 2017. Water samples collected
from six monitoring wells were analyzed in the field for water-quality parameters during
sampling (Table 4). A copy of the well sampling record is provided in Appendix A. Sampling
procedures and analytical methods complied with the approved Water Quality Monitoring Plan
dated September 8, 1994. Groundwater samples from upgradient wells P4 and P16R, and the
equipment and field blanks, were analyzed for Appendix I parameters (Table 5). Groundwater
samples from downgradient wells MW6R, P12, P20R, and P28 were analyzed for Appendix II
parameters (Table 6).

GMA collected a single pore water sample (Pore 1) from beneath the southern property
boundary ditch using a PushPointTM sampler and syringe (Figure 1). During this summer
monitoring event, the ditch was dry immediately downgradient of well P20R and a pore water
sample could not be collected from the originally proposed location for sample Pore 2.
Sampling procedures followed the Environmental Protection Agency, Science and Ecosystem
Support Division’s (SESD) 2013 Pore Water Sampling Operating Procedure (SESDPROC-513-R2)
guidelines to ensure sample integrity and avoid surface water intrusion. The pore water sample
was analyzed for Appendix I parameters (Table 5) and was not filtered in the field. Thus, all
metals are analyzed as total metals.

All samples were transferred to Environmental Conservation Laboratories, Inc. (ENCO) in ice-
filled coolers under chain-of-custody protocol. Copies of the chain-of-custody forms and
analytical reports are provided in Appendix B.
4.0 ANALYTICAL RESULTS AND DISCUSSION

Twelve parameters (arsenic, barium, benzene, chromium, copper, 1,4-dichlorobenzene,
ethylbenzene, lead, nickel, selenium, vanadium, and zinc) were detected at concentrations
above the Solid Waste Section Limits (SWSLs), and eight parameters (arsenic, barium, benzene,
chromium, copper, lead, nickel, and vanadium) were detected at concentrations above their
Groundwater Protection Standard (GWPS) during this monitoring event (Table 7). The majority
of the exceedances, however, were for metals concentrations in the newly collected pore water
sample, Pore 1, and the upgradient surface water sample SW1.

Due to the dry conditions, only one of the two proposed pore water samples (Pore 1) could be
collected. Sample Pore 1 was extremely turbid (>1000 NTU) and not filtered prior to analysis.
GMA believes that the concentrations of metals detected in this sample are likely attributed to
particulate matter and not representative of dissolved metals concentrations. During the next
monitoring event, GMA will collect pore water samples that will be filtered prior to preservation
in order to determine if these constituents are truly present in the groundwater at
July 2017 Semiannual Water Quality Monitoring Report
Southern Portion of the Pitt County Solid Waste Municipal Landfill
September 12, 2017
Page 3 of 4

concentrations above the GWPS. GMA anticipates being able to successfully collect both of the
proposed pore water samples during the January 2018 semi-annual monitoring event when
groundwater levels will be higher.

Upgradient surface water sample SW1 contained concentrations of several metals above their
GWPS. The source of these metals concentrations appears to be related to ongoing
construction by the NC DOT on the adjoining parcel directly next to the SW1 sampling location.
The downgradient surface water sample, SW2, did not contain any parameter above a GWPS.

Samples from wells MW6R and P16R contained concentrations of barium (883 g/L and 1020
g/L, respectively) above the 15A NCAC 2L standard of 700 g/L. The concentrations of barium
above this GWPS in wells MW6R and P16R may be attributable to naturally occurring levels of
barium in the native soils at the Pitt County Landfill as has been previously shown (GMA, 2011
and 2015). Previous comparisons of filtered and non-filtered samples from these wells
demonstrated that dissolved barium concentrations did not exceed the 15A NCAC 2L standard
and that barium was most likely a constituent of the particulate matter at these sampling
locations. It should be noted that well P16R is hydraulically upgradient from the southern unit
of the landfill, which was the focus of this monitoring event, but is downgradient from the
northern unit of the landfill. Barium was also present in well P4, a hydraulically-upgradient
monitoring well, at a concentration of 112 μg/L, which is above the SWSL of 100 μg/L. The
presence of barium in a hydraulically upgradient area further indicates that this alkaline metal
may naturally occur in the aquifer.

Samples from wells P16R and P20R again contained benzene (2.6 g/L and 2.6 g/L,
respectively) just above the 1.0 g/L 15A NCAC 2L groundwater standard. The source of
benzene in wells P16R and P20R is unknown. P16R is located directly upgradient from well
P20R and is an upgradient monitoring location for the Southern Unit of the Pitt County Landfill.
Importantly, benzene was not detected in the pore water sample collected downgradient of well
P20R (Pore 1). Therefore, there is currently no evidence that benzene is migrating off of the
landfill property.

Arsenic was detected in well MW6R at a concentration slightly exceeding the GWPS standard
during this event. This well will be re-sampled in January 2018 to confirm the exceedance. If
the arsenic concentration in well MW6R remains above the GWPS during the next scheduled
monitoring event, a 14-Day Notification of Groundwater Exceedance will be filed as required.

July 2017 Semiannual Water Quality Monitoring Report
Southern Portion of the Pitt County Solid Waste Municipal Landfill
September 12,2017
Page 4of4
5.0 SCHEDULED SEMI-ANNUAL MONITORING
The next semi-annual monitoring event at the Pitt County Solid Waste Municipal Landfill is
scheduled for January of 2018. This monitoring event will include the analysis of water samples
for Appendix I parameters, per the approved Water Quality Monitoring Plan dated September 8,
1994.
6.0 REPORT CERTIFICATION
This report was prepared by Ms. Emma H. Shipley, a Project Hydrogeologist for Groundwater
Management Associates, Inc. (GMA). I certify that the information contained in this report is
correct and accurate to the best of my knowledge. GMA is a professional corporation licensed to
practice geology (#C-121) and engineering (#C-0854) in North Carolina.
0tw~~ Emma H. Ship ey, .
Project Hydrogeologist
7.0 REFERENCES
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Groundwater Management Associates, Inc., 2011, Alternative Source Demonstration Report, Pitt
County Solid Waste Municipal Landfill, Greenville, Pitt County, 8 pages.
Groundwater Management Associates, Inc. 2015. January 2015 Semi-Annual Water Quality
Monitoring Event, Pitt County Solid Waste Municipal Landfill, Greenville, Pitt County, 3
pages.

FIGURES
SW1
SW2
P12
MW6R
P16R
P20R
P19
P18
P28P17
P11R
P7
P13DP13
P9
P3
MW5
P8
P10
P24
P23P21
P2
MW3
P25
MW2
P26
P15
MW8
P14
MW1R
P4
P5
P6 SW4
MW7D
SW1
SW2
P12
MW6R
P16R
P20R
P19
P18
P28P17
P11R
P7
P13DP13
P9
P3
MW5
P8
P10
P24
P23P21
P2
MW3
P25
MW2
P26
P15
MW8
P14
MW1R
P4
P5
P6 SW4
MW7D
DATE: 9/8/2017SITE LAYOUT AND EXISTING MONITORING NETWORK
PROJECT 25101
0 500'
FIGURE 1
-LEGEND-
File: DRAWINGS/25101 FIG 1 PITT COUNTY LANDFILL, GREENVILLE, PITT CO., NC
SCALE IN FEET
MONITORING WELL
SURFACE WATER SAMPLE
RAILROAD CENTERLINE
DITCHES
PONDS
PARCELS
PORE WATER SAMPLING LOCATION
Pore 1
Pore 2
SW1
SW2
P12
MW6R
P16R
P20R
P19
P18
P28P17
P11R
P7
P13DP13
P9
P3
MW5
P8
P10
P24
P23P21
P2
MW3
P25
MW2
P26
P15
MW8
P14
MW1R
P4
P5
P6 SW4
MW7D
SW1
SW2
P12
MW6R
P16R
P20R
P28
P4
DATE: 9/8/2017SAMPLING LOCATIONS - SOUTHERN UNIT
PROJECT 25101
0 500'
FIGURE 2
-LEGEND-
File: DRAWINGS/25101 FIG 2 PITT COUNTY LANDFILL, GREENVILLE, PITT CO., NC
SCALE IN FEET
MONITORING WELL
SURFACE WATER SAMPLE
RAILROAD CENTERLINE
DITCHES
PONDS
PARCELS
PORE WATER SAMPLING LOCATION
Pore 1
Pore 2
P5
P4
P6 MW1
P11R
P1275.96
P16R
P19
P28
P17 MW6R
P23
P21 P9
P13DP13
MW4P7
P2
MW3
P26
P25
MW7
MW2MW8
MW8D
P14
70.19
72.03
72.74
72.74 75.35 73.99
72.92
(72.71)75.42
73.41
P24 P10
P8
MW5
P3
76.45
76.64
74.12
74.47
74.37
74.68
76.11
76
P15
140
120
1 0 0 801 0 0
MW7D
73.22
7476
74
74
MW1R(75.52)
75
75
75
75
73
73
(71.62)
72
72
75
74
76
P20R72.34
1 0 0
1 0 0
1 2 0
80
8080
8 0
8080
808080
8080
80
8 0 80808080
80
80 0 350 700'
EQUIPOTENTIAL MAPJULY 11, 2017
- LEGEND -
PROJECT: 25101
FIGURE 3
DATE 8/23/2017
SCALE IN FEET
GENERAL NOTES:
1. TOPOGRAPHIC CONTOUR INTERVAL = 2.0 FEET2. GROUNDWATER CONTOUR INTERVAL = 1.0 FOOT3. ARROW INDICATES DIRECTION OF GROUNDWATER FLOW4. WATER LEVEL ELEVATIONS ARE POSTED BY EACH WELL5. ( ) INDICATES DATA NOT USED
1" = 350'
POND
PROPERTY LINE
TOPOGRAPHIC CONTOUR
NORFOLK SOUTHERN RAILROAD (100' R/W )
RAILROAD TRACKS
GROUNDWATER ELEVATION CONTOUR
WATER LEVEL(FEET ABOVE SEA LEVEL)77.31
DRW BY: EHS
MONITORING WELL
ABANDONED MONITORING WELL
UNMEASURED MONITORING WELL
INDICATES DIRECTION OFGROUNDWATER FLOW

TABLES

Table 1.Monitoring Well Construction and Elevations
Pitt County Municipal Solid Waste Landfill, Pitt County, NC (Permit # 74-01)
MW1R 85.48 82.50 40.0 50.0 42.5 32.5
MW3 82.97 80.50 35.0 45.0 45.5 35.5
MW6R 80.94 78.15 7.0 17.0 71.2 61.2
MW8 84.41 81.62 4.0 14.0 77.6 67.6
P02 84.65 80.60 11.0 15.0 69.6 65.6
P04 85.02 81.50 8.0 18.0 73.5 63.5
P05 85.94 82.30 8.5 13.5 73.8 68.8
P06 84.72 81.50 8.5 14.5 73.0 67.0
P07 85.41 81.90 11.0 16.0 70.9 65.9
P09 84.08 80.10 9.5 14.5 70.6 65.6
P11R 86.04 82.30 13.0 16.0 69.3 66.3
P12 79.31 75.90 10.5 17.5 65.4 58.4
P13 85.80 82.00 11.0 16.0 71.0 66.0
P13D 84.67 81.20 51.5 29.7
P16R 87.44 84.30 11.0 14.0 73.3 70.3
P17 80.38 76.30 8.0 11.0 68.3 65.3
P19 83.90 78.50 9.0 13.0 69.5 65.5
P20R 85.21 81.70 10.0 30.0 71.7 51.7
P21 82.07 77.80 8.0 11.0 69.8 66.8
P23 82.93 79.40 11.0 16.0 68.4 63.4
P26 84.59 82.20 9.0 14.0 73.2 68.2
P28 77.74 74.80 3.5 8.0 71.3 66.8
Well
Number
Top of Casing
Elevation
Land Surface
Elevation
Depth to Top
of Screen
Depth to
Bottom of
Screen
Elevation of
Top of
Screen
Elevation of
Bottom of
Screen
Table 2.Monitoring Well Water Levels and Sample Purge Volumes
Pitt County Municipal Solid Waste Landfill, Pitt County, NC (Permit # 74-01)

MW1R 7/11/17 85.48 9.96 75.52 43.0
MW3 7/11/17 82.97 11.35 71.62 36.1
MW6R 7/11/17 80.94 8.91 72.03 10.9 5.3 5.3 3 no
MW8 7/11/17 84.41 9.94 74.47 6.8
P02 7/11/17 84.65 11.73 72.92 7.3
P04 7/11/17 85.02 10.65 74.37 10.9 5.3 4.8 2.7 yes
P05 7/11/17 85.94 9.83 76.11 7.3
P06 7/11/17 84.72 10.04 74.68 7.7
P07 7/11/17 85.41 11.42 73.99 8.1
P09 7/11/17 84.08 8.73 75.35 9.8
P11R 7/11/17 86.04 9.59 76.45 10.2
P12 7/11/17 79.31 3.35 75.96 17.6 8.5 4.5 1.6 yes
P13 7/11/17 85.80 10.38 75.42 9.4
P13D 7/11/17 84.67 11.96 72.71 43.0
P16R 7/11/17 87.44 10.80 76.64 6.3 3.1 1.6 1.6 yes
P17 7/11/17 80.38 7.16 73.22 7.9
P19 7/11/17 83.90 9.78 74.12 8.6
P20R 7/11/17 85.21 12.87 72.34 19.7 9.6 9.6 3 no
P21 7/11/17 82.07 9.33 72.74 5.9
P23 7/11/17 82.93 10.19 72.74 9.3
P26 7/11/17 84.59 11.18 73.41 5.2
P28 7/11/17 77.74 7.55 70.19 3.4 1.6 1.3 2.4 yes
not sampled
not sampled
not sampled
Purged to
Dryness?
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
not sampled
Number of
Well Volumes
Purged
not sampled
Well
Number
Depth to
Water
(feet)
Height of
Water in
Well (feet)
Three Well
Volumes
(gallons)
Amount
Purged
(gallons)
Elevation
of WaterDate
Elevation
of Top of
Casing

Table 3.Calculations of Groundwater Velocity
Pitt County Municipal Solid Waste Landfill, Pitt County, NC (Permit # 74-01)
Horizontal Horizontal Horizontal
Hydraulic Hydraulic Groundwater Groundwater
Well Gradient Conductivity Effective Velocity VelocityNumberDate(ft/ft)(ft/day)Porosity (ft/day)(ft/year)
MW6R 7/11/17 0.003 0.50 0.29 0.005 1.89
P04 7/11/17 0.007 0.50 0.19 0.018 6.72
P12 7/11/17 0.011 0.20 0.43 0.005 1.87
P16R 7/11/17 0.006 0.80 0.24 0.020 7.30
P20R 7/11/17 0.004 0.10 0.32 0.001 0.46
P28 7/11/17 0.011 0.30 0.17 0.019 7.09

Table 4.Water Quality Parameters
Pitt County Municipal Solid Waste Landfill, Pitt County, NC (Permit # 74-01)
Temperature Turbidity-during Turbidity-during
Well Sample pH (degrees Conductivity collection of organics collection of metals
Number Date Celsius)(micromhos)samples (ntu)samples (ntu)*
MW6R 7/11/2017 6.70 21.8 2243 55.1 55.1
P04 7/11/2017 4.20 17.6 61 47.30 3.7
P12 7/11/2017 5.60 24.9 73 0.08 9.4
P16R 7/11/2017 6.33 21.7 4348 37.6 7.5
P20R 7/11/2017 5.93 20.9 2199 591 6.16
P28 7/11/2017 5.21 25.2 83 32.5 40.2
SW1 7/11/2017 6.32 27.2 121 620 620
SW2 7/11/2017 7.47 28.1 418 170 170
* All monitoring well samples submitted for metals analysis were collected on 7/12/2017.
Table 5. Appendix I Target Parameters
Pitt County Municipal Solid Waste Landfill, Pitt County, NC 74-01
CAS Number Name Other Names 2L Std.GWP Std.SWSL
630-20-6 1,1,1,2-Tetrachloroethane Ethane, 1,1,1,2-
tetrachloro-NE 1 5
71-55-6 1,1,1-Trichloroethane;
Methylchloroform Ethane, 1,1,1-trichloro-200 --1
79-34-5 1,1,2,2-Tetrachloroethane Ethane, 1,1,2,2-
tetrachloro-0.2 0.18 3
79-00-5 1,1,2-Trichloroethane Ethane, 1,1,2-trichloro-NE 0.6 1
75-34-3 1,1-Dichloroethane;
Ethyldidene chloride Ethane, 1,1-dichloro-6 --5
75-35-4 1,1-Dichloroethylene; 1,1-
Dichloroethene;Ethene, 1,1-dichloro-7 --5
96-18-4 1,2,3-Trichloropropane Propane, 1,2,3-trichloro-0.005 --1
96-12-8 1,2-Dibromo-3-
chloropropane; DBCP
Propane, 1,2-dibromo-3-
chloro-0.04 --13
106-93-4 1,2-Dibromoethane;
Ethylene dibromide; EDB Ethane, 1,2-dibromo-0.02 --1
107-06-2 1,2-Dichloroethane;
Ethylene dichloride Ethane, 1,2-dichloro-0.4 --1
78-87-5 1,2-Dichloropropane Propane, 1,2-dichloro-0.6 --1
591-78-6 2-Hexanone; Methyl butyl
ketone 2-Hexanone NE 40 50
108-10-1 4-Methyl-2-pentanone;
Methyl isobutyl ketone 2-Pentanone, 4-methyl-NE 560 100
67-64-1 Acetone 2-Propanone 6000 --100
75-05-8 Acetonitrile; Methyl
cyanide Acetonitrile NE 42 55
7440-36-0 Antimony Antimony NE 1 6
7440-38-2 Arsenic Arsenic 10 --10
7440-39-3 Barium Barium 700 --100
71-43-2 Benzene Benzene 1 --1
7440-41-7 Beryllium Beryllium NE 4 1
74-97-5 Bromochloromethane;
Chlorobromethane Methane, bromochloro-NE 0.6 3
75-27-4 Bromodichloromethane;
Dichlorobromomethane
Methane,
bromodichloro-0.6 --1
75-25-2 Bromoform;
Tribromomethane Methane, tribromo-4 --3
7440-43-9 Cadmium Cadmium 2 --1
75-15-0 Carbon disulfide Carbon disulfide 700 --100
56-23-5 Carbon tetrachloride Methane, tetrachloro-0.3 --1
108-90-7 Chlorobenzene Benzene, chloro-50 --3
75-00-3 Chloroethane; Ethyl
chloride Ethane, chloro-3000 --10
67-66-3 Chloroform;
Trichloromethane Methane, trichloro-70 --5
7440-47-3 Chromium Chromium 10 --10
156-59-2 cis-1,2-Dichloroethylene;
cis-1,2-Dichloroethene
Ethene, 1,2-dichloro-
,(Z)-70 --5
10061-01-5 cis-1,3-Dichloropropene 1-Propene, 1,3-dichloro-
, (Z)-0.4 --1
All units are in micrograms per liter (ug/L)
2L STD = 15A NCAC 2L groundwater standard
GWP STD = groundwater protection standard
SWSL = Solid Waste Section Limit
Table 5. Appendix I Target Parameters
Pitt County Municipal Solid Waste Landfill, Pitt County, NC 74-01
CAS Number Name Other Names 2L Std.GWP Std.SWSL
7440-48-4 Cobalt Cobalt NE 1 10
7440-50-8 Copper Copper 1000 --10
124-48-1 Dibromochloromethane;
Chlorodibromomethane
Methane,
dibromochloro-0.4 0.41 3
100-41-4 Ethylbenzene Benzene, ethyl-600 --1
7439-92-1 Lead Lead 15 --10
74-83-9 Methyl bromide;
Bromomethane Methane, bromo-NE 10 10
74-87-3 Methyl chloride;
Chloromethane Methane, chloro-3 --1
78-93-3 Methyl ethyl ketone; MEK;
2-Butanone 2-Butanone 4000 --100
74-88-4 Methyl iodide;
Iodomethane Methane, iodo-NE NE 10
74-95-3 Methylene bromide;
Dibromomethane Methane, dibromo-NE 70 10
75-09-2 Methylene chloride;
Dichloromethane Methane, dichloro-5 --1
7440-02-0 Nickel Nickel 100 --50
95-50-1 o-Dichlorobenzene; 1,2-
Dichlorobenzene Benzene, 1,2-dichloro-20 --5
106-46-7 p-Dichlorobenzene; 1,4-
Dichlorobenzene Benzene, 1,4-dichloro-6 --1
7782-49-2 Selenium Selenium 20 --10
7440-22-4 Silver Silver 20 --10
100-42-5 Styrene Benzene, ethenyl-70 --1
127-18-4
Tetrachloroethylene;
Tetrachloroethene;
Perchloroethylene
Ethene, tetrachloro-0.7 --1
7440-28-0 Thallium Thallium NE 0.28 5.5
108-88-3 Toluene Benzene, methyl-600 --1
156-60-5
trans-1,2-
Dichloroethylene; trans-1,2-
Dichloroethene
Ethene, 1,2-dichloro-
,(E)-100 --5
10061-02-6 trans-1,3-Dichloropropene 1-Propene, 1,3-dichloro-
, (E)-0.4 --1
110-57-6 trans-1,4-Dichloro-2-
butene
2-Butene, 1,4-dichloro-,
(E)-NE NE 100
79-01-6 Trichloroethylene;
Trichloroethene Ethene, trichloro-3 --1
75-69-4 Trichlorofluoromethane;
CFC-11 Methane,trichlorofluoro-2000 --1
7440-62-2 Vanadium Vanadium NE 3.5 25
108-05-4 Vinyl acetate Acetic acid,
ethenylester NE 88 50
75-01-4 Vinyl chloride;
Chloroethene Ethene, chloro-0.03 --1
1330-20-7 Xylene (total)Benzene, dimethyl-500 --5
7440-66-6 Zinc Zinc 1000 --10
All units are in micrograms per liter (ug/L)
2L STD = 15A NCAC 2L groundwater standard
GWP STD = groundwater protection standard
SWSL = Solid Waste Section Limit
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
630-20-6 1,1,1,2-Tetrachloroethane Ethane, 1,1,1,2-tetrachloro-NE 1.3 5
71-55-6
1,1,1-Trichloroethane;
Methylchloroform Ethane, 1,1,1-trichloro-200 --1
79-34-5 1,1,2,2-Tetrachloroethane Ethane, 1,1,2,2-tetrachloro-0.2 0.18 3
79-00-5 1,1,2-Trichloroethane Ethane, 1,1,2-trichloro-NE 0.6 1
75-34-3
1,1-Dichloroethane;
Ethyldidene chloride Ethane, 1,1-dichloro-6 --5
75-35-4
1,1-Dichloroethylene; 1,1-
Dichloroethene;Ethene, 1,1-dichloro-7 --5
563-58-6 1,1-Dichloropropene 1-Propene, 1,1-dichloro-NE NE 5
96-18-4 1,2,3-Trichloropropane Propane, 1,2,3-trichloro-0.005 --1
95-94-3 1,2,4,5-Tetrachlorobenzene Benzene, 1,2,4,5-tetrachloro-NE NE 10
120-82-1 1,2,4-Trichlorobenzene Benzene, 1,2,4-trichloro-70 70 10
96-12-8
1,2-Dibromo-3-chloropropane;
DBCP Propane, 1,2-dibromo-3-chloro-0.04 --13
106-93-4
1,2-Dibromoethane; Ethylene
dibromide; EDB Ethane, 1,2-dibromo-0.02 --1
107-06-2
1,2-Dichloroethane; Ethylene
dichloride Ethane, 1,2-dichloro-0.4 --1
78-87-5 1,2-Dichloropropane Propane, 1,2-dichloro-0.6 --1
142-28-9
1,3-Dichloropropane;
Trimethylene dichloride Propane, 1,3-dichloro-NE NE 1
130-15-4 1,4-Naphthoquinone 1,4-Naphthalenedione NE NE 10
134-32-7 1-Naphthylamine 1-Naphthalenamine NE NE 10
594-20-7
2,2-Dichloropropane;
Isopropylidene chloride Propane, 2,2-dichloro-NE NE 15
58-90-2 2,3,4,6-Tetrachlorophenol Phenol, 2,3,4,6-tetrachloro-200 --10
93-76-5
2,4,5-T; 2,4,5-
Trichlorophenoxyacetic acid
Acetic acid, (2,4,5-
trichlorophenoxy)-NE NE 2
95-95-4 2,4,5-Trichlorophenol Phenol, 2,4,5-trichloro-NE 700 10
88-06-2 2,4,6-Trichlorophenol Phenol, 2,4,6-trichloro-NE NE 10
94-75-7
2,4-D; 2,4-
Dichlorophenoxyacetic acid
Acetic acid, (2,4-
dichlorophenoxy)-70 --2
120-83-2 2,4-Dichlorophenol Phenol, 2,4-dichloro-NE NE 10
105-67-9 2,4-Dimethylphenol; m-Xylenol Phenol, 2,4-dimethyl-100 --10
51-28-5 2,4-Dinitrophenol Phenol, 2,4-dinitro-NE NE 50
121-14-2 2,4-Dinitrotoluene Benzene, 1-methyl-2,4-dinitro-NE NE 10
87-65-0 2,6-Dichlorophenol Phenol, 2,6-dichloro-NE NE 10
606-20-2 2,6-Dinitrotoluene Benzene, 2-methyl-1,3-dinitro-NE NE 10
53-96-3 2-Acetylaminofluorene; 2-AAF Acetamide, N-9H-fluoren-2-yl-NE NE 20
91-58-7 2-Chloronaphthalene Naphthalene, 2-chloro-NE NE 10
95-57-8 2-Chlorophenol Phenol, 2-chloro-0.4 --10
591-78-6
2-Hexanone; Methyl butyl
ketone 2-Hexanone NE 280 50
91-57-6 2-Methylnaphthalene Naphthalene, 2-methyl-30 --10
91-59-8 2-Naphthylamine 2-Naphthalenamine NE NE 10
page 1 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
91-94-1 3,3'-Dichlorobenzidine
[1,1'-Biphenyl]-4,4'-diamine,3,3'-
dichloro-NE NE 20
119-93-7 3,3'-Dimethylbenzidine
[1,1'-Biphenyl]-4,4'-diamine,3,3'-
dimethyl-NE NE 10
56-49-5 3-Methylcholanthrene
Benz[j]aceanthrylene,1,2-dihydro-
3-methyl-NE NE 10
72-54-8 4,4'-DDD
Benzene 1,1'-(2,2-
dichloroethylidene)bis[4-chloro-0.1 --0.1
72-55-9 4,4'-DDE
Benzene, 1,1'-
(dichloroethenylidene)bis[4-
chloro-NE NE 0.1
50-29-3 4,4'-DDT
Benzene, 1,1'-(2,2,2-
trichloroethylidene)bis[4-chloro-0.1 --0.1
534-52-1
4,6-Dinitro-o-cresol; 4,6-Dinitro-
2-methylphenol Phenol, 2-methyl-4,6-dinitro-NE NE 50
92-67-1 4-Aminobiphenyl [1,1'-Biphenyl]-4-amine NE NE 20
101-55-3 4-Bromophenyl phenyl ether Benzene, 1-bromo-4-phenoxy-NE NE 10
7005-72-3 4-Chlorophenyl phenyl ether Benzene, 1-chloro-4-phenoxy-NE NE 10
108-10-1
4-Methyl-2-pentanone; Methyl
isobutyl ketone 2-Pentanone, 4-methyl-NE 560 100
99-55-8 5-Nitro-o-toluidine Benzenamine, 2-methyl-5-nitro-NE NE 10
57-97-6
7,12-
Dimethylbenz[a]anthracene
Benz[a]anthracene, 7,12-
dimethyl-NE NE 10
83-32-9 Acenaphthene Acenaphthylene, 1,2-dihydro-80 --10
208-96-8 Acenaphthylene Acenaphthylene 200 --10
67-64-1 Acetone 2-Propanone 6000 --100
75-05-8 Acetonitrile; Methyl cyanide Acetonitrile NE 42 55
98-86-2 Acetophenone Ethanone, 1-phenyl-NE 700 10
107-02-8 Acrolein 2-Propenal NE 3.5 53
107-13-1 Acrylonitrile 2-Propenenitrile NE NE 200
309-00-2 Aldrin
1,4:5,8-
Dimethanonaphthalene,1,2,3,4,1
0,10 -hexachloro-1,4,4a,5,8,8a-
hexahydro-(1,4,4a,5,8,8a)-NE NE 0.05
107-05-1 Allyl chloride 1-Propene, 3-chloro-NE NE 10
319-84-6 alpha-BHC
Cyclohexane,1,2,3,4,5,6-
hexachloro-,(1a,2a,3β,4a,5ﾟ,6ﾟ)-NE 0.006 0.05
120-12-7 Anthracene Anthracene 2000 --10
7440-36-0 Antimony Antimony NE 1.4 6
7440-38-2 Arsenic Arsenic 10 --10
7440-39-3 Barium Barium 700 --100
71-43-2 Benzene Benzene 1 --1
56-55-3
Benzo[a]anthracene;
Benzanthracene Benz[a]anthracene 0.05 --10
50-32-8 Benzo[a]pyrene Benzo[a]pyrene 0.005 --10
205-99-2 Benzo[b]fluoranthene Benz[e]acephenanthrylene 0.05 --10
191-24-2 Benzo[ghi]perylene Benzo[ghi]perylene 200 --10
207-08-9 Benzo[k]fluoranthene Benzo[k]fluoranthene 0.5 --10
100-51-6 Benzyl alcohol Benzenemethanol NE 3500 20
page 2 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
7440-41-7 Beryllium Beryllium NE 4 1
319-85-7 beta-BHC
Cyclohexane,1,2,3,4,5,6-
hexachloro-,(1a,2ﾟ,3a,4ﾟ,5a,6ﾟ)-NE 0.019 0.05
108-60-1
Bis(2-chloro-1-methylethyl)
ether; 2,2'-Dichlorodiisopropyl
ether; DCIP, See footnote 4 Propane, 2,2'-oxybis[1-chloro-NE NE 10
111-91-1 Bis(2-chloroethoxy)methane
Ethane, 1,1'-
[methylenebis(oxy)]bis [2-chloro-NE NE 10
111-44-4
Bis(2-chloroethyl)ether;
Dichloroethyl ether Ethane, 1,1'-oxybis[2-chloro-NE 0.031 10
117-81-7 Bis(2-ethylhexyl) phthalate
1,2-Benzenedicarboxylic acid,
bis(2-ethylhexyl)ester 3 NE 15
74-97-5
Bromochloromethane;
Chlorobromethane Methane, bromochloro-NE 0.6 3
75-27-4
Bromodichloromethane;
Dichlorobromomethane Methane, bromodichloro-0.6 --1
75-25-2 Bromoform; Tribromomethane Methane, tribromo-4 --3
85-68-7
Butyl benzyl phthalate; Benzyl
butyl phthalate
1,2-Benzenedicarboxylicacid,
butyl phenylmethyl ester 1000 --10
7440-43-9 Cadmium Cadmium 2 --1
75-15-0 Carbon disulfide Carbon disulfide 700 --100
56-23-5 Carbon tetrachloride Methane, tetrachloro-0.3 --1
57-74-9 Chlordane
4,7-Methano-1H-
indene,1,2,4,5,6,7,8,8- octachloro-
2,3,3a,4,7,7a-hexahydro-0.1 --0.5
108-90-7 Chlorobenzene Benzene, chloro-50 --3
510-15-6 Chlorobenzilate
Benzeneacetic acid, 4-chloro-(4-
chlorophenyl)--hydroxy-, ethyl
ester NE NE 10
75-00-3 Chloroethane; Ethyl chloride Ethane, chloro-3000 --10
67-66-3 Chloroform; Trichloromethane Methane, trichloro-70 --5
126-99-8 Chloroprene 1,3-Butadiene, 2-chloro-NE NE 20
7440-47-3 Chromium Chromium 10 --10
218-01-9 Chrysene Chrysene 5 --10
156-59-2
cis-1,2-Dichloroethylene; cis-
1,2-Dichloroethene Ethene, 1,2-dichloro-,(Z)-70 --5
10061-01-5 cis-1,3-Dichloropropene 1-Propene, 1,3-dichloro-, (Z)-0.4 --1
7440-48-4 Cobalt Cobalt NE 70 10
7440-50-8 Copper Copper 1000 --10
57-12-5 Cyanide Cyanide 70 --10
319-86-8 delta-BHC
Cyclohexane,1,2,3,4,5,6-
hexachloro-,(1a,2a,3a,4ﾟ,5a,6ﾟ)-NE 0.019 0.05
2303-16-4 Diallate
Carbamothioic acid,bis(1-
methylethyl)-, S-(2,3-dichloro-2-
propenyl) ester NE NE 10
53-70-3 Dibenz[a,h]anthracene Dibenz[a,h]anthracene 0.005 --10
page 3 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
132-64-9 Dibenzofuran Dibenzofuran NE 28 10
124-48-1
Dibromochloromethane;
Chlorodibromomethane Methane, dibromochloro-0.4 0.41 3
75-71-8
Dichlorodifluoromethane; CFC
12 Methane,dichlorodifluoro-1000 --5
60-57-1 Dieldrin
2,7:3,6-Dimethanonaphth[2,3-
b]oxirene,3,4,5,6,9,9-hexachloro -
1a,2,2a,3,6,6a,7,7a-octahydro-,
(1aa,2ﾟ,2aa,3ﾟ,6ﾟ,6aa,7ﾟ,7aa)-0.002 --0.002
84-66-2 Diethyl phthalate
1,2-Benzenedicarboxylicacid,
diethyl ester 6000 --6000
60-51-5 Dimethoate
Phosphorodithioic acid,O,O-
dimethyl S-[2-(methylamino)-2-
oxoethyl] ester NE NE 20
131-11-3 Dimethyl phthalate
1,2-Benzenedicarboxylicacid,
dimethyl ester NE NE 10
84-74-2 Di-n-butyl phthalate
1,2-Benzenedicarboxylic acid,
dibutyl ester 700 --10
117-84-0 Di-n-octyl phthalate
1,2-Benzenedicarboxylicacid,
dioctyl ester 100 --10
88-85-7
Dinoseb; DNBP; 2-sec-Butyl-4,6-
dinitrophenol
Phenol, 2-(1-methylpropyl)-4,6-
dinitro-NE 7 1
122-39-4 Diphenylamine Benzenamine, N-phenyl-NE NE 10
298-04-4 Disulfoton
Phosphorodithioic acid,O,O-
diethyl S-[2-(ethylthio)ethyl]ester 0.3 --10
959-98-8 Endosulfan I
6,9-Methano-2,4,3-benzodiox-
athiepin,6,7,8,9,10,10 -
hexachloro-1,5,5a,6,9,9a-
hexahydro-, 3-oxide,40 NE 0.1
33213-65-9 Endosulfan II
6,9-Methano-2,4,3-
benzodioxathiepin,6,7,8,9,10,10 -
hexachloro-1,5,5a,6,9,9a-
hexahydro-, 3-
oxide,(3a,5aa,6ﾟ,9ﾟ,9aa)-42 --0.1
1031-07-8 Endosulfan sulfate
6,9-Methano-2,4,3-
benzodioxathiepin,6,7,8,9,10,10 -
hexachloro-1,5,5a,6,9,9a-
hexahydro-, 3,3-dioxide NE NE 0.1
72-20-8 Endrin
2,7:3,6-Dimethanonaphth[2,3-
b]oxirene, 3,4,5,6,9,9-hexachloro-
1a,2,2a,3,6,6a,7,7a-octahydro-,
(1aa,2ﾟ,2aﾟ,3a,6a,6aﾟ,7ﾟ,7aa)-2 --0.1
page 4 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
7421-93-4 Endrin aldehyde
1,2,4-Methenocyclo-
penta[cd]pentalene-5-
carboxaldehyde,2,2a,3,3,4,7 -
hexachlorodecahydro-
(1a,2ﾟ,2aﾟ,4ﾟ,4aﾟ,5ﾟ,6aﾟ,6bﾟ,7R*)-2 --0.1
97-63-2 Ethyl methacrylate
2-Propenoic acid, 2-methyl-,
ethyl ester NE NE 10
62-50-0 Ethyl methanesulfonate Methanesulfonic acid,ethyl ester NE NE 20
100-41-4 Ethylbenzene Benzene, ethyl-600 --1
52-85-7 Famphur
Phosphorothioic acid, O-[4-
[(dimethylamino)sulfonyl]phenyl]-
O, O-dimethyl ester NE NE 20
206-44-0 Fluoranthene Fluoranthene 300 --10
86-73-7 Fluorene 9H-Fluorene 300 --10
58-89-9 gamma-BHC; Lindane
Cyclohexane,1,2,3,4,5,6-
hexachloro-,(1a,2a,3ﾟ,4a,5a,6ﾟ)-0.03 --0.05
76-44-8 Heptachlor
4,7-Methano-1H-
indene,1,4,5,6,7,8,8-heptachloro-
3a,4,7,7a-tetrahydro-0.008 --0.05
1024-57-3 Heptachlor epoxide
2,5-Methano-2H-indeno[1,2-
b]oxirene,2,3,4,5,6,7,7 -
heptachloro-1a,1b,5,5a,6,6a, -
hexahydro-
,(1aa,1bﾟ,2a,5a,5aﾟ,6ﾟ,6aa)0.004 --0.075
118-74-1 Hexachlorobenzene Benzene, hexachloro-0.02 --10
87-68-3 Hexachlorobutadiene
1,3-Butadiene,1,1,2,3,4,4-
hexachloro-0.4 0.44 10
77-47-4 Hexachlorocyclopentadiene
1,3-Cyclopentadiene,1,2,3,4,5,5-
hexachloro-NE 50 10
67-72-1 Hexachloroethane Ethane, hexachloro-NE 2.5 10
1888-71-7 Hexachloropropene
1-Propene, 1,1,2,3,3,3-
hexachloro-NE NE 10
193-39-5 Indeno(1,2,3-cd)pyrene Indeno[1,2,3-cd]pyrene 0.05 --10
78-83-1 Isobutyl alcohol 1-Propanol, 2-methyl-NE NE 100
465-73-6 Isodrin
1,4,5,8-
Dimethanonaphthalene,1,2,3,4,1
0,10-hexachloro-1,4,4a,5,8,8a
hexahydro-(1a,4a,4aﾟ,5ﾟ,8ﾟ,8aﾟ)-NE NE 20
78-59-1 Isophorone
2-Cyclohexen-1-one,3,5,5-
trimethyl-40 --10
120-58-1 Isosafrole 1,3-Benzodioxole, 5-(1-propenyl)-NE NE 10
143-50-0 Kepone
1,3,4-Metheno-2H-cyclobuta-
[cd]pentalen-2-one,
1,1a,3,3a,4,5,5,5a,5b,6-
decachlorooctahydro-NE NE 20
7439-92-1 Lead Lead 15 --10
page 5 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
108-39-4 m-Cresol; 3-Methylphenol Phenol, 3-methyl-400 --10
541-73-1
m-Dichlorobenzene; 1,3-
Dichlorobenzene Benzene, 1,3-dichloro-200 --5
99-65-0 m-Dinitrobenzene Benzene, 1,3-dinitro-NE NE 20
7439-97-6 Mercury Mercury 1 --0.2
126-98-7 Methacrylonitrile 2-Propenenitrile, 2-methyl-NE NE 100
91-80-5 Methapyrilene
1,2,Ethanediamine, N,N-dimethyl-
N'-2-pyridinyl-N'-( 2-
thienylmethyl)-NE NE 100
72-43-5 Methoxychlor
Benzene, 1,1'-
(2,2,2,trichloroethylidene)bis [4-
methoxy-40 --1
74-83-9
Methyl bromide;
Bromomethane Methane, bromo-NE NE 10
74-87-3 Methyl chloride; Chloromethane Methane, chloro-3 --1
78-93-3
Methyl ethyl ketone; MEK; 2-
Butanone 2-Butanone 4000 --100
74-88-4 Methyl iodide; Iodomethane Methane, iodo-NE NE 10
80-62-6 Methyl methacrylate
2-Propenoic acid, 2-methyl-,
methyl ester NE 9800 30
66-27-3 Methyl methanesulfonate
Methanesulfonic acid,methyl
ester NE NE 10
298-00-0
Methyl parathion; Parathion
methyl
Phosphorothioic acid,O,O-
dimethyl NE NE 10
74-95-3
Methylene bromide;
Dibromomethane Methane, dibromo-NE NE 10
75-09-2
Methylene chloride;
Dichloromethane Methane, dichloro-5 --1
99-09-2 m-Nitroaniline; 3-Nitroaniline Benzenamine, 3-nitro-NE NE 50
91-20-3 Naphthalene Naphthalene 6 --10
7440-02-0 Nickel Nickel 100 --50
98-95-3 Nitrobenzene Benzene, nitro-NE NE 10
55-18-5 N-Nitrosodiethylamine Ethanamine, N-ethyl-N-nitroso-NE NE 20
62-75-9 N-Nitrosodimethylamine
Methanamine, N-methyl-N-
nitroso-0.0007 --10
924-16-3 N-Nitrosodi-n-butylamine 1-Butanamine, N-butyl-N-nitroso-NE NE 10
86-30-6 N-Nitrosodiphenylamine Benzenamine, N-nitroso-N-phenyl-NE NE 10
621-64-7
N-Nitrosodipropylamine; N-
Nitroso-N-dipropylamine; Di-n-
propylnitrosamine
1-Propanamine, N-nitroso-N-
propyl-NE NE 10
10595-95-6 N-Nitrosomethylethalamine Ethanamine, N-methyl-N-nitroso-NE NE 10
100-75-4 N-Nitrosopiperidine Piperidine, 1-nitroso-NE NE 20
930-55-2 N-Nitrosopyrrolidine Pyrrolidine, 1-nitroso-NE NE 10
126-68-1
O,O,O-Triethyl
phosphorothioate
Phosphorothioic acid,O,O,O-
triethyl ester NE NE 10
page 6 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
297-97-2
O,O-Diethyl O-2-pyrazinyl
phosphorothioate; Thionazin
Phosphorothioic acid,O,O-diethyl
O-pyrazinyl ester NE NE 20
95-48-7 o-Cresol; 2-Methylphenol Phenol, 2-methyl-NE 35 10
95-50-1
o-Dichlorobenzene; 1,2-
Dichlorobenzene Benzene, 1,2-dichloro-20 --5
88-74-4 o-Nitroaniline; 2-Nitroaniline Benzenamine, 2-nitro-NE NE 50
88-75-5 o-Nitrophenol; 2-Nitrophenol Phenol, 2-nitro-NE NE 10
95-53-4 o-Toluidine Benzenamine, 2-methyl-NE NE 10
60-11-7 p-(Dimethylamino)azobenzene
Benzenamine, N,N-dimethyl-4-
(phenylazo)-NE NE 10
56-38-2 Parathion
Phosphorothioic acid,O,O-diethyl-
O-(4-nitrophenyl) ester NE NE 10
106-47-8 p-Chloroaniline Benzenamine, 4-chloro-NE NE 20
59-50-7
p-Chloro-m-cresol; 4-Chloro-3-
methylphenol Phenol, 4-chloro-3-methyl-NE NE 20
106-44-5 p-Cresol; 4-Methylphenol Phenol, 4-methyl-40 NE--10
106-46-7
p-Dichlorobenzene; 1,4-
Dichlorobenzene Benzene, 1,4-dichloro-6 --1
608-93-5 Pentachlorobenzene Benzene, pentachloro-NE NE 10
82-68-8 Pentachloronitrobenzene Benzene,pentachloronitro-NE NE 20
87-86-5 Pentachlorophenol Phenol, pentachloro-0.3 --25
62-44-2 Phenacetin Acetamide, N-(4-ethoxyphenyl)NE NE 20
85-01-8 Phenanthrene Phenanthrene 200 --10
108-95-2 Phenol Phenol 30 --10
298-02-2 Phorate
Phosphorodithioic acid,O,O-
diethyl S-[(ethylthio)methyl]ester 1 --10
100-01-6 p-Nitroaniline; 4-Nitroaniline Benzenamine, 4-nitro-NE NE 20
100-02-7 p-Nitrophenol; 4-Nitrophenol Phenol, 4-nitro-NE NE 50
1336-36-3
Polychlorinated biphenyls; PCBs
1016/1242
1,1'-Biphenyl,chloro derivatives
Method 1016/1242 NE 0.5 2
106-50-3 p-Phenylenediamine 1,4-Benzenediamine NE NE 10
23950-58-5 Pronamide
Benzamide, 3,5-dichloro-N-(1,1-
dimethyl-2-propynyl)-NE NE 10
107-12-0 Propionitrile; Ethyl cyanide Propanenitrile NE NE 150
129-00-0 Pyrene Pyrene 200 --10
94-59-7 Safrole 1,3-Benzodioxole, 5-(2-propenyl)-NE NE 10
7782-49-2 Selenium Selenium 20 --10
7440-22-4 Silver Silver 20 --10
93-72-1 Silvex; 2,4,5-TP
Propanoic acid, 2-(2,4,5-
trichlorophenoxy)-50 --2
100-42-5 Styrene Benzene, ethenyl-70 --1
18496-25-8 Sulfide Sulfide NE NE 1000
99-35-4 sym-Trinitrobenzene Benzene, 1,3,5-trinitro-NE NE 10
127-18-4
Tetrachloroethylene;
Tetrachloroethene;
Perchloroethylene Ethene, tetrachloro-0.7 --1
7440-28-0 Thallium Thallium NE 0.28 5.5
page 7 of 8
Table 6. Appendix II Target Parameters
Pitt County Municipal Solid Waste Landfill (74-01), Pitt County, NC
CAS
Number Name Other Names 2L
Std.
GWP*
Std.SWSL**
7440-31-5 Tin Tin NE 2100 100
108-88-3 Toluene Benzene, methyl-600 --1
8001-35-2 Toxaphene Toxaphene 0.03 --1.5
156-60-5
trans-1,2-Dichloroethylene;
trans-1,2-Dichloroethene Ethene, 1,2-dichloro-,(E)-100 --5
10061-02-6 trans-1,3-Dichloropropene 1-Propene, 1,3-dichloro-, (E)-0.4 --1
110-57-6 trans-1,4-Dichloro-2-butene 2-Butene, 1,4-dichloro-, (E)-NE NE 100
79-01-6
Trichloroethylene;
Trichloroethene Ethene, trichloro-3 --1
75-69-4 Trichlorofluoromethane; CFC-11 Methane,trichlorofluoro-2000 --1
7440-62-2 Vanadium Vanadium NE 3.5 25
108-05-4 Vinyl acetate Acetic acid, ethenylester NE 7000 50
75-01-4 Vinyl chloride; Chloroethene Ethene, chloro-0.03 --1
1330-20-7 Xylene (total)(o-,m-,and p-, Benzene, dimethyl 500 --5
7440-66-6 Zinc Zinc 1000 --10
* GWP = Groundwater Protection
NE = Not Established ** SWSL = Solid Waste Section Limit
CAS numbers that begin with "SW" are not real CAS numbers, instead this represents the Solid
Waste Section's ID number
All units are in (ug/L) unless noted.
page 8 of 8
Table 7. List of Compounds Detected during the July 2017 Sampling Event
Southern Unit of the Pitt County Municipal Solid Waste Landfill (Permit #74-01)
Well ID Date Parameter Results
(µg/L)
MDL
(µg/L)
NC SWSL
(µg/L)
NC 2L or 2B
Std* (µg/L)
GWP Std
(µg/L)
MCL
(µg/L)
7/12/2017 Carbon disulfide 3.9 J 1.5 100 700 --7/12/2017 Copper Total 2.38 J 1.6 10 1000 -1300^7/12/2017 Zinc Total 57.3 4.4 10 1000 --
FB 7/12/2017 Copper Total 2.55 J 1.6 10 1000 -1300^
7/12/2017 Arsenic Total 10.7 6.8 10 10 -107/12/2017 Barium Total 883 1 100 700 -20007/12/2017 Benzene 0.54 J 0.15 1 1 -57/12/2017 Cobalt Total 2.11 J 1.1 10 -1 -7/12/2017 Nickel Total 9.02 J 2.2 50 100 --7/12/2017 Silver Total 1.95 J 1.9 10 20 --
7/12/2017 Barium Total 112 1 100 700 -2000
7/12/2017 Copper Total 2.32 J 1.6 10 1000 -1300^
7/12/2017 Nickel Total 2.21 J 2.2 50 100 --7/12/2017 Silver Total 2.00 J 1.9 10 20 --7/12/2017 Thallium Total 0.126 J 0.11 5.5 -0.28 27/12/2017 Zinc Total 7.81 J 4.4 10 1000 --7/12/2017 Barium Total 31.5 J 1 100 700 -20007/12/2017 Beryllium Total 0.436 J 0.1 1 -4 47/12/2017 Sulfide 0.045 J 0.01 1000 ---7/12/2017 Thallium Total 0.124 J 0.11 5.5 -0.28 2
7/11/2017 Acetone 28 J 10 100 6000 --7/12/2017 Antimony Total 0.722 J 0.22 6 -1 67/12/2017 Barium Total 1020 1 100 700 -20007/11/2017 Benzene 2.6 0.15 1 1 -57/11/2017 Chlorobenzene 0.79 J 0.17 3 50 -1007/12/2017 Cobalt Total 1.20 J 1.1 10 -1 -7/12/2017 Nickel Total 10.6 J 2.2 50 100 --7/12/2017 Silver Total 2.11 J 1.9 10 20 --7/12/2017 Thallium Total 0.122 J 0.11 5.5 -0.28 27/11/2017 Toluene 0.56 J 0.14 1 600 -17/12/2017 Vanadium Total 3.82 J 1.4 25 -0.3 -
7/11/2017 1,1-Dichloroethane 1.2 J 0.13 5 6 --7/11/2017 1,4-Dichlorobenzene 4.1 J 0.19 1 6 -757/12/2017 Barium Total 407 1 100 700 -20007/11/2017 Benzene 2.6 0.15 1 1 -57/12/2017 Beryllium Total 0.271 J 0.1 1 -4 47/11/2017 Chlorobenzene 1.6 J 0.17 3 50 -100
7/12/2017 Cobalt Total 2.40 J 1.1 10 -1 -7/11/2017 Diethylphthalate 6.2 J 2.1 10 6000 --7/11/2017 Ethylbenzene 6.2 0.13 1 600 -7007/12/2017 Lead Total 5.60 J 3.1 10 15 -157/11/2017 Naphthalene 1.8 J 0.11 10 6 --7/12/2017 Nickel Total 9.15 J 2.2 50 100 --7/12/2017 Vanadium Total 5.67 J 1.4 25 -0.3 -7/11/2017 Xylenes Total 1.1 J 0.45 5 500 -107/12/2017 Zinc Total 13.7 4.4 10 50,000 na -7/12/2017 Barium Total 28.4 J 1 100 700 -20007/12/2017 Beryllium Total 0.420 J 0.1 1 -4 47/12/2017 Chromium Total 2.26 J 1.4 10 10 -100
7/12/2017 Vanadium Total 3.21 J 1.4 25 -0.3 -7/12/2017 Zinc Total 8.32 J 4.4 10 1000 --7/12/2017 Arsenic Total 43.2 6.8 10 10 -107/12/2017 Barium Total 967 1 100 700 -20007/12/2017 Beryllium Total 7.34 0.1 1 -4 47/12/2017 Chromium Total 367 1.4 10 10 -1007/12/2017 Cobalt Total 22.0 1.1 10 -1 -
7/12/2017 Copper Total 46.8 1.6 10 1000 -1300^
7/12/2017 Lead Total 320 3.1 10 15 -157/12/2017 Nickel Total 240 2.2 50 100 --7/12/2017 Selenium Total 11.1 J 9.1 10 20 -507/12/2017 Silver Total 8.82 J 1.9 10 20 --
7/12/2017 Vanadium Total 535 1.4 25 -0.3 -7/12/2017 Zinc Total 602 4.4 10 1000 --
MW6R
EB
P16R
P20R
Pore 1
P28
P04
P12
Page 1 of 2
Table 7. List of Compounds Detected during the July 2017 Sampling Event
Southern Unit of the Pitt County Municipal Solid Waste Landfill (Permit #74-01)
Well ID Date Parameter Results
(µg/L)
MDL
(µg/L)
NC SWSL
(µg/L)
NC 2L or 2B
Std* (µg/L)
GWP Std
(µg/L)
MCL
(µg/L)
7/12/2017 Acetone 16 J 10 100 2000 na -7/7/2016 Barium Total 163 1 100 200,000 na 20007/12/2017 Beryllium Total 0.153 J 0.1 1 6.5 na 47/12/2017 Chromium Total 19.7 1.4 10 50 na 100
7/12/2017 Cobalt Total 2.95 J 1.1 10 4 na -
7/12/2017 Copper Total 11 1.6 10 7^na 1300^
7/12/2017 Lead Total 17.4 3.1 10 25 na 157/12/2017 Nickel Total 6.76 J 2.2 50 88 na -7/12/2017 Selenium Total 1.10 J 0.91 10 5 na 507/12/2017 Thallium Total 0.197 J 0.11 5.5 0.47 na 27/12/2017 Vanadium Total 35.8 1.4 25 -na -7/12/2017 Zinc Total 37.3 4.4 10 50,000 na -
7/12/2017 Antimony Total 0.416 J 0.22 6 640 na 6
7/12/2017 Barium Total 111 1 100 200,000 na 20007/12/2017 Chromium Total 3.88 J 1.4 10 50 na 100
7/12/2017 Cobalt Total 1.54 J 1.1 10 4 na -
7/12/2017 Copper Total 5.62 1.6 10 7^na 1300^
7/12/2017 Lead Total 8.88 3.1 10 25 na 157/12/2017 Nickel Total 2.79 2.2 50 88 na -7/12/2017 Vanadium Total 7.03 1.4 25 -na -7/12/2017 Zinc Total 43.5 4.4 10 50,000 na -
MDL = Method Detection Limit MCL = Federal Maximum Contaminant Level
NC SWSL = North Carolina Solid Waste Section Limit GWP STD = groundwater protection standard
J = The analyte was positively identified, but the value is estimated below the reporting limit.All concentrations reported in micrograms/liter (µg/L).
^ Value represents an action level.
Concentrations listed in bold exceeded the NC SWSL. Concentrations highlighted in yellow were detected above the 2L (or 2B) standards.Concentrations highlighted in orange were detected above the GWP standard.
Concentrations highlighted in blue were detected above the EPA MCL.
SW2
SW1
*15A NCAC 2L groundwater standards are listed for all groundwater sampling locations. 15A NCAC 2B standards are listed for surface water
sampling locations (SW1 and SW2).
yellow orange blue
Page 2 of 2

APPENDIX A

CORRESPONDENCE FROM THE NC
DIVISION OF WASTE MANAGEMENT

One additional environmental monitoring issue for the northern portion of the landfi.ll needs to be
addressed, <lnd that is the need to monitor for methane gas. Solid waste management rules require that
concentrations of explosive gases, such as meUlane, not exceed the lower explosive limit of 5% by volume
at the property botmdary (15A NCAC l3B .0503). Because of the property development adjacent to the
landfilllhere should be documentation that there is no threat to public healtll from the off-site migration of
methane. TIle only reliable way to insure the detection of methane is to install a permanent methane
monitoring system. 1lle bar plUlch method with temporary monitoring locations that is being used at the
landfill is not an acceptable metltod.
TIlerefore tbe Solid Waste Section is requiring Pitt County to install a permanent methane monitoring
system along the northern property boundary between the landfill and the adjacent residential properry that
is being developed. A methane monitoring plan that includes sampling probe construction design,
proposed probe locations, and sampling methodology should be submitted to the Solid Waste Section for
approval bef9re implementation. /\ monitoring system installed according to accepted industry stanchrds
can provide more accurate and reproducible infonnation and mcrea$c the confidence level that protection
of public health is being served.
Thank you for your cooperation wirb. th.is important matter. I fyou bave any questions, please call me at
[phone], extension 257.
Sincerely,
<f~;4~
Larry Rose
Solid Waste section
cc: James C. ColTey -Chief, Solid Waste Section
Mark Poindexter -Head, Field Operations Branch
Mark Fry -Eastern District Supervisor
Chuck Boyene -Waste Management Specialist
Pete Monc\a, P.G. -GMA, inc.

March 16, 2017

Sent Via Email – [e-mail]
Mr. John Demary
Pitt County Director of Solid Waste & Recycling
3025 Landfill Road
Greenville, NC 27834

Re: Proposal for Assessment of Benzene Contamination Migration
Pitt County MSW Landfill (Northern and Southern)
Pitt County
Solid Waste Permit Number 74-01
DIN 27529

Dear Mr. Demary:

The NC Solid Waste Section has completed a review of the Proposal for Assessment of Benzene
Contamination Migration dated March 15, 2017 (DIN 27528) submitted on your behalf by Groundwater
Management Associates, Inc. (GMA) for the closed Pitt County MSW Landfill, NC Solid Waste Permit
Number 7401. During the January 2017 semiannual water quality monitoring event benzene was
detected at concentrations exceeding the NC 2L Groundwater Standards in two groundwater monitoring
wells.

Based upon the groundwater exceedances, Pitt County is requesting to collect two pore water samples
from the beneath the southern boundary ditch and analyze for Appendix I constituents. The proposed
sampling locations are located downgradient of groundwater monitoring well P20R and will be sampled
during the July 2017 semiannual water quality monitoring event.

As a result, the Proposal for Assessment of Benzene Contamination Migration is approved as described. If
you have any questions, please feel free to contact me by email at [e-mail] or
by phone at 828.296.4706. Thank you for your continued cooperation with this matter.

Sincerely,

Jaclynne Drummond
Compliance Hydrogeologist
Solid Waste Section, Division of Waste Management
NCDEQ

cc sent via email: Tim Corley, Pitt County Engineer
Jason Watkins, Field Operations Branch Head
Drew Hammonds, Eastern District Supervisor
Ray Williams, Environmental Senior Specialist
Elizabeth Werner, Permitting Hydrogeologist
Emma Shipley, GMA
Steve Campbell, GMA
State of North Carolina I Environmental Quality I Waste Management
Asheville Regional Office I 2090 u.s. Highway 70 I Swannanoa, NC 28778
8282964500

APPENDIX B

LABORATORY REPORT AND CHAIN-OF-CUSTODY FORMS FOR
WATER SAMPLES

APPENDIX C

MONITORING WELL AND SURFACE WATER SAMPLING
RECORDS