6003_Mecklenburg_YorkRoad_MSWLF_CAER_FID1817134_20230831

ENR USE ONLY: OPaper Report ❑Electronic Data - Email CD data loaded: Yes / No Doc/Event #:
NC DENR Environmental Monitoring
Division of Waste Management - Solid Waste Reportina Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification
must include a preliminary analysis of the cause and significance of each value. (e g. naturally occurring, off -site source, pre-existing
condition, etc.)
Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits
Attach a notification table of any methane gas values that attain or exceed explosive gas levels This includes any structures on or nearby the
facility (NCAC 138 .1629 (4)(a)(i).
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
bona waste monitori
Name of entity submitting
Data Submittal Information
i (laboratory, consultant, facility owner):
Geosyntec Consultants of NC, P.C.
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: Amy Kenwell
E-mail: [e-mail]
Facility name:
City of Charlotte
Former York Road Landfill
Facility Address:
1525 West Tyvola Road
Charlotte, NC 28217
Phone: [phone]
NC Landfill Rule: Actual sampling dates (e g.,
Facility Permit # (.0500 or .1600) October 20-24, 2006)
Not Applicable - Corrective
60-03 0500 Action Evaluation Report
presenting previously
reported data
Environmental Status: (Check all that apply)
Initial/Background Monitoring 0 Detection Monitoring 0 Assessment Monitoring
_f Corrective Action
T e of data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells Methane gas monitoring data
Groundwater monitoring data from private water supply wells Corrective action data (specify)
Leachate monitoring data
Surface water monitoring data Other(specify)
Notification attached?
e No. No groundwater or surface water standards were exceeded.
Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and
preliminary analysis of the cause and significance of any concentration
Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct,
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Amy Kenwell Senior Geologist [phone]
Facility Representative Na a (Print) Title
8/31 /2023
Sign 1t a Date
1300 South Mint Street Suite 300, Charlotte, NC, 28203
Facility Representative Address
C-3500
NC PE Firm License Number (if applicable effective May 1, 2009)
Revised 6/2009
(Area Code) Telephone Number
Affix NC vGeologist Seal
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Prepared for
City of Charlotte
General Services Department
600 East 4th Street
CHARLOTTET. Charlotte, NC 28202
CORRECTIVE ACTION
EVALUATION REPORT
FORMER YORK ROAD LANDFILL
NCDEQ PERMIT NO. 60-03
WEST TYVOLA ROAD AND SOUTH TRYON
STREET
CHARLOTTE, NORTH CAROLINA
Prepared by.•
Geosyntec°
consultants
Geosyntec Consultants of NC, P.C.
1300 S. Mint St., Suite 300
Charlotte, NC 28203
Project Number: GC5699H
August 2023

Geosptec °
consultants
Geosyntec Consultants of NC, P.C.
Corrective Action Evaluation Report
Former York Road Landfill, Charlotte, North Carolina
August 2023
TABLE OF CONTENTS
1. INTRODUCTION................................................................................................ 5
1.1 Site Description and Background................................................................ 5
1.2 Aquifer Characteristics................................................................................ 6
1.3 Contaminant Distribution............................................................................ 8
1.3.1 Saprolite and PWR Groundwater................................................... 9
1.3.2 Bedrock Groundwater.................................................................. 10
1.4 Description of Site Conceptual Model ...................................................... 12
1.5 Regulatory Status....................................................................................... 14
2. CORRECTIVE ACTION SUMMARY.............................................................
17
2.1 Aquifer Conditions and Plume Characteristics .........................................
17
2.1.1 Physical Changes in Aquifer Characteristics ....................................
17
2.1.2 Chemical Changes in Aquifer Characteristics ..................................
17
2.1.3 Physical Changes in Plume Characteristics ......................................
18
2.1.4 Chemical Changes in Plume Characteristics ....................................
18
2.2 Refining the Site Conceptual Model.........................................................
19
2.3 Evaluation of Impacts................................................................................
21
2.3.1 Contaminant Concentrations........................................................
22
2.3.2 Impacts at Point of Compliance ...................................................
27
2.3.3 Off -Site Migration Evaluation......................................................
30
4. SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS ..................... 33
4.1 Summary and Conclusions........................................................................ 33
4.2 Recommendations..................................................................................... 34
5. REFERENCES................................................................................................... 36
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LIST OF TABLES
Table 1
Groundwater Well Construction Details
Table 2
Historical Groundwater Elevations
Table 3
Historical Groundwater Monitoring Data
Table 4
Existing Groundwater and Surface Water Sampling Schedule
Table 5
March 2023 Detected Constituents in Groundwater
Table 6
Summary of Mann -Kendall Trend Analysis for VOCs
Table 7
Historical Vertical Hydraulic Gradients
Table 8
March 2023 Detected Constituents in Surface Water
Table 9
Proposed Groundwater and Surface Water Sampling Schedule
LIST OF FIGURES
Figure 1
Site Location Map
Figure 2
Site Plan
Figure 3
Unconsolidated Potentiometric Surface Map (2 March 2023)
Figure 4A
Plume Map — Saprolite
Figure 4B
Plume Map — PWR
Figure 4C
Plume Map — Bedrock
Figure 5A
DMW-01 and DDW-01 Time Trends
Figure 5B
DDW-02, DDW-03, DMW-01, and DMW-06 Time Trends
LIST OF APPENDICES
Appendix A
Site Current Conditions Photolog
Appendix B
Boring Logs and Cross -Sections
Appendix C
Sample Field Sampling Sheets
Appendix D
Sample Chain of Custody
Appendix E
Geophysical Investigation
Appendix F
Receptor Survey Map
Appendix G
Biochlor Model
Appendix H
Groundwater PFAS Analytical Data Summary (Police & Fire
Training Academy)
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Geosyntec Consultants of NC, P.C.
Corrective Action Evaluation Report
Former York Road Landfill, Charlotte, North Carolina
August 2023
1. INTRODUCTION
On behalf of the City of Charlotte, Geosyntec Consultants of NC, P.C. (Geosyntec) has
prepared this Corrective Action Evaluation Report (CAER) for the City of Charlotte's
former York Road Landfill (Figure 1). This report presents an updated Assessment of
Corrective Measures prepared in 2003 by Delta Environmental Consultants, Inc. (Delta)
based on the results of assessment and mitigation activities conducted through May 2023
of groundwater and surface water monitoring conducted at the former landfill. As
requested by Jaclynne Drummond of the North Carolina Department of Environmental
Quality (NCDEQ) on a 13 February 2023 call, this CAER was prepared in general
accordance with the NCDEQ Solid Waste Section Guidelines for Corrective Action
Evaluation Reports. This report focuses on groundwater and surface water conditions at
the Site and does not address landfill gas which is managed as described in the Water
Quality and Landfill Gas Monitoring Plan ("Monitoring Plan"; Geosyntec, 2017). While
the 2003 Delta report did not identify a remedy, a 2009 email between Hart & Hickman
and Jaclynne Drummond referenced the collection of monitored natural attenuation
(MNA) parameters.
Following approximately 20 years of groundwater and surface water monitoring, the
Conceptual Site Model (CSM) has been re-evaluated herein and the characteristics of the
impacted groundwater plume, which include select volatile organic compounds (VOCs)
and metals (described in Section 1.3), have been re -visited. A re-evaluation of the
remedial approach was conducted including the spatial, temporal, and analytical
monitoring requirements.
1.1 Site Description and Background
The former York Road Landfill (herein referred to as the "Site") is an approximately 400-
acre site located along West Tyvola Road and South Tryon Street (Highway 49) in
Charlotte, Mecklenburg County, North Carolina (Figure 1). The Site was operated as an
unlined municipal solid waste landfill from approximately 1968 to 1986, with the last
expansion occurring in 1983 (under NCDEQ Facility Permit Number 60-03). The landfill
waste placement area consisted of a total of approximately 168-acres, which was divided
into six cells referred to as Landfill Areas A through F, as shown in Figure 2. The precise
locations of waste placement boundaries are uncertain and have been estimated based on
historical drawings by others and electromagnetic mapping. During operation,
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Corrective Action Evaluation Report
Former York Road Landfill, Charlotte, North Carolina
August 2023
commercial, industrial, and domestic solid wastes were added to the landfill using
excavation -and -fill and ramp disposal techniques.
The former landfill was developed with the construction of West Tyvola Road, a golf
course, and a recreational park following closure in 1986. Today, the Site is utilized by
the Harry L. Jones, Sr. Golf Course (formerly Renaissance Park Golf Course) and
Renaissance Park, which includes recreational facilities for softball, volleyball,
skateboarding, walking, hiking, biking, dog exercise, and disc golf. A photographic log
of current Site conditions is included in Appendix A.
1.2 Aquifer Characteristics
The Site is located within the Charlotte Belt of the Piedmont Physiographic Province.
The topography of the Piedmont Province is generally characterized by gently rolling
hills ranging in elevation from approximately 300 to 1,200 feet (ft) above mean sea level
(AMSL), and the Site elevation ranges from approximately 580 in the northeast to 680 ft
AMSL near Sugar Creek to the southwest. Geologically, the province is comprised
primarily of crystalline metamorphic rocks (schists and gneiss, and to a lesser extent,
phyllite and slate) of Precambrian to Paleozoic age. These units are often highly
deformed with multiple fracture and foliation planes, which promote anisotropic
groundwater flow. The occurrence and movement of groundwater at the Site is typical
of the Piedmont formation, and generally occurs within three hydrogeologic units. Site
monitoring wells are screened in each, as summarized in Table 1. Two shallow
hydrogeologic units typically occur within the soils and saprolite (weathered residuum
which mantles bedrock). The saprolite consists of a mixture of silty sands, clayey sands,
silts, and sands coarsening with depth that are up to 20 feet thick. A deeper hydrogeologic
unit is generally associated with secondary porosity (fractures or open spaces) within the
crystalline bedrock. An approximately 5-foot thick transition zone of fractured bedrock
occurs between saprolite and bedrock and is generally referred to as partially weathered
rock (PWR). Boring logs and cross -sections developed by Delta are included in
Appendix B.
The depth to groundwater at the Site ranges from an average of 2 feet below ground
surface (ft bgs) in bedrock well DDW-03A near Sugar Creek to approximately 55 ft bgs
in PWR well DMW-08 to the east. Groundwater elevations since 2006 have ranged from
548.98 ft AMSL (bedrock well DMW-02A in September 2012) to 647.11 ft AMSL
(saprolite well DMW-A in September 2020, disregarding a suspected anomalous value
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Corrective Action Evaluation Report
Former York Road Landfill, Charlotte, North Carolina
August 2023
in September 2009 which was approximately 25 feet above average and anticipated to be
erroneous) as shown in Table 2. Groundwater flow in the shallow hydrogeologic units
are controlled by local topographic features, with recharge occurring in upland areas and
discharge occurring in drainage features such as streams, rivers, or lakes. At the Site,
groundwater flows towards Sugar Creek on the southwestern boundary with some
influence from the North and South tributaries to Sugar Creek which run through the Site
on either side of a north -south trending bedrock ridge (Figure 3). The groundwater flow
south of the Site has been impacted by the construction of a multi -family residential
complex with a man-made pond located approximately 400 ft south of DMW-02A. In
September 2018, the average water table elevation at DMW-02A began to rise and the
timing correlated to the residential complex construction. Increases in water table
elevations at DMW-02 and DMW-02A since 2018 may be a result of the proximity of
these monitoring wells to the residential complex and man-made pond.
Recharge to the shallow hydrogeologic unit is primarily the result of infiltrating
precipitation. Groundwater flow in the bedrock water -bearing zone is controlled by the
distribution and degree of interconnection of openings in the rock. Sustained well yields
in the Piedmont were reported to average 15 to 30 gallons per minute (gpm) (Charles C.
Daniel, III and R.A. Payne, 1990; as referenced in Delta, 2003).
Slug tests performed on Site wells in 1996 indicated a saprolite and PWR hydraulic
conductivity of 2.71 feet per day (ft/day) to 5.45 ft/day (Delta, 2003). Geosyntec
anticipates that this hydraulic conductivity may be dominated by the coarser PWR unit
and that the shallow saprolite, particularly where higher silt content exists, may have
substantially lower hydraulic conductivity. The bedrock hydraulic conductivity was
reported to be between 0.02 ft/day to 5.88 ft/day and were highly dependent on the
weathering and fracture network, generally decreasing with depth (Delta, 2003).
Delta also calculated estimated groundwater flow velocities using a grain size correlation
to estimate effective porosity. The average gradient used in their calculation was 0.011
ft/ft which is similar to the gradient most recently measured in March 2023 of 0.013 ft/ft,
which has remained very consistent in recent years. The calculated groundwater flow
velocity was reported to be 0.53 ft/day for saprolite and PWR, 1.43 ft/day for upper
bedrock, and 0.026 ft/day for lower bedrock (Delta, 2003). Based on this velocity,
groundwater located at DMW-A (the furthest upgradient well) during Delta's reporting
in 2003 would take approximately 25 years to reach DMW-05 along Sugar Creek in the
saprolite/PWR zone. This suggests that groundwater from the farthest reaches of Landfill
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Corrective Action Evaluation Report
Former York Road Landfill, Charlotte, North Carolina
August 2023
Area F, installed through 1986, has likely already reached the property boundary. At least
one pore volume of groundwater beneath the landfill cells has likely moved through the
system and groundwater at the property boundary in 2023 represents water migrating
from upgradient following landfill placement. Decreased groundwater VOC
concentrations detected in Site monitoring wells likely result from degradation of the
contaminant sources within the waste over time.
Additional details on aquifer characteristics and geologic studies are included in Delta's
report (2003).
1.3 Contaminant Distribution
A summary of previous water quality investigations was provided in the 2003 report by
Delta. Groundwater monitoring was first conducted in 1981 and continued intermittently
through 1996. Quarterly reporting of groundwater conditions began in 1998 and
transitioned to semi-annual in 1999. The present-day groundwater monitoring network
shown on Figure 2 was complete by 2015. Well construction details are provided in
Table 1, historical groundwater elevations (March 2006 through March 2023) are
summarized in Table 2, historical groundwater sampling analytical results (March 2008
through March 2023) are included in Table 3 and the existing groundwater and surface
water sampling schedule is included in Table 4. Contaminants of concern (COCs)
identified in the 2003 report by Delta included benzene, chloroethane,
cis-1,2-dichloroethene (cis-1,2-DCE), 1, 1 -dichloroethane (1,1-DCA),
1,2-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichloropropane, tetrachloroethene
(PCE), tichloroethene (TCE), and vinyl chloride. In 2023, groundwater COCs with
concentrations above respective NCDEQ Title 15A of the North Carolina Administrative
Code (NCAC), Subchapter 2L Standards include 1,4-dioxane, 1,1-DCA,
1,2-dichloroethane (1,2-DCA), 1,2-dichloropropane, 1,4-dichlorobenzene, benzene,
TCE, PCE, and vinyl chloride. Chloroethane, cis-1,2-DCE, and 1,2-dichlorobenzene
have been removed from the COC list while 1,2-DCA and 1,4-dioxane were added. In
addition, metals including barium, cadmium, iron, lead, and manganese were added to
the COC list. In 2003, iron and manganese were detected above 2L Standards but were
considered background concentrations.
The following sections present contaminant distributions in the saprolite, PWR, and
bedrock units as shown on Figures 4A through 4C. Contaminant distribution is
anticipated to potentially extend off -Site in bedrock to the southeast but be limited to the
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August 2023
southwest by Sugar Creek, which is a hydraulic divide between Site groundwater and off -
Site groundwater. The shallow groundwater elevation at DDW-03A (Table 2) and
consistent upward hydraulic gradient at the DDW-03A/DDW-03/DMW-06 and
DDW-OIA/DDW-01 well nests support this though there may be a seasonal downward
gradient at the DDW-02/DMW-05 well cluster in March of most years (Table 5).
DMW-05 is screened to 20 ft bgs across PWR and saprolite where the upward gradient
is not as consistent as between bedrock and saprolite/PWR. In addition to Site data, a
network of 14 saprolite/PWR wells and eleven bedrock wells located west of Sugar Creek
indicate that the horizontal hydraulic gradient is to the east towards Sugar Creek (Hart &
Hickman, 2023). This off -Site data confirms that Sugar Creek acts as a hydraulic divide
in the saprolite and PWR groundwater.
1.3.1 Saprolite and PWR Groundwater
As summarized in Table 1, 20 monitoring wells that are part of the current monitoring
network are screened in the saprolite and PWR zones (including one well screened across
PWR and bedrock). The saprolite and PWR units are discussed together in this section as
several well screens overlap between saprolite and PWR. Nine (9) saprolite/PWR wells
are monitored for groundwater quality (Table 4). Most of the analytical monitoring
network is located along the downgradient (southwestern and southeastern) boundaries
of the Site.
L3.L1 VOCS
March 2023 analytical results from the saprolite and PWR wells indicate VOCs above
respective NCDEQ 2L Standards in select wells along the downgradient boundary
including DMW-05 (1,4-dioxane), DDW-02 (1,1-DCA and 1,4-dioxane), DMW-06
(1,2-dichloropropane, 1,4-dichlorobenzene, 1,4-dioxane, TCE, and vinyl chloride),
DDW-03 (1,2-dichloropropane, 1,4-dioxane, and vinyl chloride), and DMW-01 (vinyl
chloride) as summarized in Table 6 and on Figures 4A through 4B. Many VOC
concentrations hover within an order of magnitude of the 2L Standard and some vary
from exceedance to non-exceedance between sampling events. For example, benzene at
DMW-01 was above the NCDEQ 2L Standard in September 2015, September 2018,
September 2019, and September 2021 but below the NCDEQ 2L Standard in 12 other
monitoring events between 2015 and 2023 (Table 3-F). Mann -Kendall analyses
(summarized in Table 7 and described further in Section 2.3.1.1) indicate primarily
decreasing trends of VOCs with NCDEQ 2L Standard exceedances in March 2023.
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Following the March 2023 monitoring, Mann -Kendall analyses identified an increasing
trend of 1,4-dichlorobenzene at DMW-06 and decreasing trends for remaining saprolite
and PWR wells with 2L Standard exceedances.
1.3.1.2 Metals
Iron and/or manganese were above the respective 2L Standards in six PWR/saprolite
wells in March 2023 including YRW-IOC, DMW-05, DMW-06, DMW-02, DMW-01,
and DMW-08. Three of these wells (YRW-IOC, DMW-02, and DMW-08) are located
approximately cross -gradient of the landfill cells and the concentrations of iron and
manganese do not appear to correlate well with elevated VOC impacts, though this could
be a result of waste heterogeneity. This was also noted in the 2003 report, where iron and
manganese were attributed to background conditions. While iron and manganese did not
exceed 2L Standards in upgradient well DMW-A, they could be released from lithologic
units through changes in groundwater characteristics (pH, oxidation, etc.) caused by the
waste. YRW-1 OC, which is only downgradient of the edge of a waste cell, has historically
had the highest concentrations of iron in groundwater (Table 3).
In 2023, cadmium was above the 2L Standard of 2 micrograms per liter (µg/L) in
monitoring well DMW-01 which is located just outside Landfill Area A on the
southeastern property boundary. Cadmium is fairly consistently above the 2L Standard at
DMW-01 with historical concentrations up to 63 µg/L since 2008. While cadmium has
periodically exceeded the 2L Standard in other Site wells, the concentrations are less than
5 µg/L so the cadmium impacts appear fairly localized near DMW-01, potentially as a
result of the waste composition in this area.
1.3.2 Bedrock Groundwater
As summarized in Table 1, seven (7) monitoring wells that are part of the current
monitoring network are screened in the bedrock zone, five (5) of which (DDW-01,
DDW-01A, DDW-03A, DMW-02A, and DMW-0213) are monitored for groundwater
quality. Two of the bedrock monitoring wells (DDW-01 and DDW-01A) are located
along the southwestern boundary of the Site, one (DDW-03A) in the southernmost point
at the confluence of Sugar Creek and the South Tributary, and two (DMW-02A and
DMW-0213) off -Site to the south.
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1.3.2.1 VOCs
March 2023 analytical results from these wells (summarized in Table 6 and on Figure
4C) indicate 2L Standard exceedances in the wells along the southwestern boundary
(DDW-01 and DDW-OIA). These wells are co -located, and open from 45 to 60 ft bgs and
90 to 100 ft vgs, respectively. Only TCE and vinyl chloride exceeded 2L Standards in
both wells in March 2023. Benzene and 1,4-dioxane additionally exceeded respective 2L
Standards in the deeper well (DDW-OIA) while 1,1-DCA, 1,2-dichloropropane, and PCE
exceeded 2L Standards in the shallower well (DDW-01). As with the saprolite and PWR,
many VOC concentrations are within an order of magnitude of the NCDEQ 2L Standard
and some vary from exceedance to non-exceedance between sampling events (for
example, benzene at DMW-02B as shown in Table 3-I). Mann -Kendall analyses
(summarized in Table 7 and described further in Section 2.3.1.1) indicate primarily
decreasing trends. Following the March 2023 monitoring, Mann -Kendall analyses
identified increasing trends of TCE and vinyl chloride at DDW-01A and 1,1-DCA and
TCE at DDW-01. Data indicate the concentrations of VOCs in bedrock at this location
along Sugar Creek appear to be increasing but impacts are not migrating to downstream
bedrock wells. Most of the increasing trends are of PCE daughter products and may
reflect reductive dichlorination.
Concentrations of benzene exceeded the 2L Standard in DDW-03A, the bedrock well at
the confluence of Sugar Creek and the South Tributary, in 2023 while other VOCs
analyzed had concentrations below the 2L Standards. The co -located PWR and saprolite
wells at this location had impacts of several VOCs including 1,2-dichloropropane,
1,4-dichlorobenzene, TCE, and vinyl chloride above the 2L Standards (Table 6) which
do not appear to be migrating to bedrock, likely due to a consistently upward vertical
hydraulic gradient at this location (Table 5).
There were no VOC exceedances in off -Site bedrock monitoring well DMW-02A open
from 35 to 47 ft bgs while the deeper well DMW-02B open from 74.5 to 84.5 ft bgs had
exceedances of 1,2-DCA and 1,4-dioxane in March 2023. 1,2-DCA has not previously
exceeded the 2L Standard at this well and 1,4-dioxane was analyzed for the first time in
March 2023, however, other VOC exceedances occur historically at DMW-02B (Table
3-I). Benzene at DMW-02B first exceeded the 2L Standard in September 2017 which
was prior to the change in hydraulic gradient. Vinyl chloride first exceeded the 2L
Standard in September 2021, following the change in hydraulic gradient. The variation
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of these compounds from above to below the 2L Standard between monitoring events
suggests the edge of a groundwater plume.
The distribution of 1,4-dioxane results are inconsistent with a shallow on -Site source.
Three of the wells with 1,4-dioxane 2L Standard exceedances had one or less other VOC
2L Standard exceedances (DDW-02, DMW-02B, DMW-05). In some cases
(DDW-0 1 /DDW-0 I A, DMW-05/DDW-02, and DMW-02A/DMW-02B) the deeper well
had higher 1,4-dioxane concentrations than the shallow well at the same location. Only
at well cluster DMW-06/DDW-03/DDW-03A does the 1,4-dioxane concentration
decrease in the bedrock well. This suggests that 1,4-dioxane in area groundwater may be
comingling from multiple sources including potential off -Site sources.
1.3.2.2 Metals
For metals, iron was above the 2L Standard of 300 µg/L in DDW-01 along the
southwestern boundary with a concentration of 386 µg/L in 2023. Iron concentrations at
this well have varied between 36,700 µg/L in 1995 and 55 µg/L in 2010. Iron has typically
been below the 2L Standard at co -located deep well DMW-0IA.
Barium and lead were above respective 2L Standards in off -Site well DMW-02A in the
most recent monitoring data. Barium at DMW-02A has been consistent since
approximately 2013 while the concentrations of lead have risen in 2022 and 2023. Recent
changes of lead concentrations at this well may reflect installation of a man-made pond
upgradient of DMW-02A which also caused an approximately 40-foot rise of
groundwater elevation. Barium and lead have consistently been below the 2L Standard at
co -located deep well DMW-02B.
1.4 Description of Site Conceptual Model
A CSM was developed as part of the 2003 Assessment and Corrective Measures Report
by Delta and is summarized below. Changes to the CSM are addressed in Section 2.2
Based on the Site stratigraphy, hydrogeology, and contaminant distribution, the following
conclusions from Delta (2003) describe the occurrence, distribution, and potential
movement of VOC-impacted groundwater at the Site:
• The Site is underlain by approximately 40 to 50 feet of regolith (saprolite and
PWR) consisting primarily of silty sand with some clayey sand, silt, and sand
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from weathering of igneous rocks. The PWR zone varies in thickness and
transitions from finer grained soils to coarse grained soils as it approaches the
bedrock. Bedrock consists of slightly fractured porphyritic metamorphosed quartz
diorite, diorite, and tonalite beginning between 17 and 63 ft bgs.
• In 2003, depth to groundwater was reported to be between approximately 3 ft bgs
in the Sugar Creek floodplain to 25 ft bgs at higher elevations. The unconfined
surficial aquifer has been encountered in the regolith and bedrock with no
confining layer.
• Groundwater generally flows to the west-southwest towards Sugar Creek, with
localized flow to the North and South Tributaries which bisect the Site.
• Hydraulic conductivity within the saprolite and PWR was calculated to range
from 2.71 to 5.45 ft/day. Upper fractured bedrock hydraulic conductivity was
calculated to be 3.89 to 5.88 ft/day while at depth it decreased to 0.02 to
0.05 ft/day. Average hydraulic gradient was calculated to be 0.011 ft/ft in regolith
and 0.015 ft/ft in bedrock, resulting in estimated groundwater flow velocity of
0.53 ft/day in regolith and 1.43 ft/day in bedrock. Groundwater from fractured
bedrock was believed to flow upwards to discharge into Sugar Creek and the
tributaries at a rate of 0.026 ft/day. Recent data supports this theory, with
consistent upward hydraulic gradients at most well nests adjacent to Sugar Creek,
as discussed in Section 1.3.1.
• VOCs had been identified in groundwater downgradient of the landfill waste cells
but were not present within the first 25 feet of subsurface or beyond 65 ft bgs.
Delta reported that dissolved VOCs were primarily observed in the PWR and
upper fractured bedrock between 25 and 65 ft bgs. At the time, benzene,
1,2-dichloropropane, cis-1,2-DCE, PCE, TCE, and vinyl chloride with
concentrations up to I I I µg/L were identified with the highest concentrations at
DMW-01, along the southeastern property boundary.
• The horizontal extent of VOC-impacted groundwater was estimated to be within
approximately 500 feet downgradient of the edge of waste adjacent to Landfill
Areas A and C near the southeastern Site boundary.
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• The vertical extent of VOC-impacted groundwater was estimated to be within the
top 30 feet of bedrock at depths up to 65 ft bgs.
Cross -sections from Delta's report are provided in Appendix B. These identified a
preferential hydraulic pathway in the coarse PWR and upper fractured bedrock. VOC
impacts from the landfill moved preferentially along this pathway and were not identified
in shallower saprolite or deeper competent bedrock at the time. VOC impacts have been
detected near the southwestern Sugar Creek and southeastern property boundaries. In
2003, VOCs were below 2L Standards at southwestern boundary compliance monitoring
well DDW-02 where the compliance boundary was defined as 50 feet from the property
boundary because there was insufficient space for a 250-ft boundary from waste. At well
DDW-03, located 25 feet within the compliance boundary near the southwest corner of
the Site, PCE, TCE, and vinyl chloride were detected above the respective 2L Standards
suggesting that the edge of the plume was at or near the compliance boundary. On the
southeastern property boundary, YRW-06A is located within the 250-ft compliance
boundary while the boundary was adjusted to be 50 feet from the property boundary at
DMW-01. Each well reported exceedances of the 2L Standards (TCE and vinyl chloride
at YRW-06A and 1,2-dichloropropane and cis-1,2-DCE at DMW-01).
Compliance monitoring wells for the deeper aquifer DDW-0IA, DDW-03A, DMW-02B,
and DDW-06 did not have reported VOC concentrations above detection in February
2003.
1.5 Regulatory Status
The York Road Landfill was closed under the 10 NCAC 10G, Section .0500 rules as
referenced in the 21 August 1987 closure letter from the North Carolina Department of
Human Resources, Division of Health Services. These regulations were transferred and
recodified into title 15A NCAC 13B Solid Waste Management Rules, effective April
1990.
The 2003 report by Delta lists Federal and State regulations with potential applicability
at the Site, the following of which are considered likely applicable to the current Site
operations:
• 40 Code of Federal Regulations (CFR) Part I-99 of the Clean Air Act;
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o now potentially 40 CFR Chapter I, Subchapter C, Part 99 (reserved)
• National Ambient Air Quality Standards (NAAQS), 29 CFR Part 1910
Occupational Safety and Health Administration (OSHA);
o now references Title 40 CFR Part 50 for NAAQS though OSHA reference
is still applicable
• Fish and Wildlife Conservation Act;
• 15A NCAC 13B — Solid Waste Management Rules;
• 15A NCAC 213.0200 — Surface Water Quality;
• 15A NCAC 213.0100 —Surface Water Discharges;
o now references procedures for assignment of water quality standards.
Section .0400 on effluent limitations may be more applicable but Section
.0200 remains the most applicable for this Site.
• 15A NCAC 2L.0200 — Ground Water Quality;
• 15A NCAC 2D.0400 — Air Pollution Control Requirements;
o now references ambient air quality standards
• 15A NCAC 2D.0500 — Remediation System Emissions.
Water quality and landfill gas monitoring at the Former York Road Landfill is conducted
pursuant to the Water Quality and Landfill Gas Monitoring Plan ("Monitoring Plan";
Geosyntec, 2017), which was approved by the NCDEQ in a 7 March 2017 letter. The
Groundwater and Surface Water Sampling Schedule from the Monitoring Plan, presented
in Table 4, is conducted semi-annually, typically in March and September. Example field
sampling sheets are included in Appendix C and an example chain of custody is included
in Appendix D.
As stated in the Monitoring Plan, the 15A NCAC 13B Section .0500 rules and closure
letter for the Site do not specify landfill gas monitoring requirements. Therefore, landfill
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gas monitoring is regularly conducted in general accordance with the Monitoring Plan,
which was developed to provide reasonable protection to public health and the
environment. Select landfill gas monitoring points from this plan have been informally
removed due to demolition, burial, or abandonment of the locations. Landfill gas
monitoring is conducted on a quarterly basis (typically in January, April, July, and
October).
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2. CORRECTIVE ACTION SUMMARY
The following sections describe the changes in aquifer and plume conditions, the CSM,
and an evaluation of impacts. Since the 2003 report by Delta, approximately 20 years of
semi-annual groundwater and surface water monitoring has been conducted at the Site.
Landfill gas management has also been conducted, including quarterly monitoring,
installation or renovation of extraction systems near potential receptors, and installation
of additional landfill gas and water level monitoring points. In 2017 and 2018, select
portions of the waste boundary along Tryon Street, in Renaissance Park, and the northeast
boundary were mapped by Geo Solutions Ltd. using Electromagnetic (EM) equipment
(Appendix E). Figures in this report which show waste cells reflect this data.
2.1 Aquifer Conditions and Plume Characteristics
The following sections describe physical and chemical changes to aquifer conditions and
plume characteristics between 2003 and 2023.
2.1.1 Physical Changes in Aquifer Characteristics
No physical changes in aquifer characteristics were observed other than a potential
change in gradient along portions of the southeastern boundary of the Site which was
previously more southwestward and is now more westward. Groundwater elevations have
risen substantially to the south of the Site following construction of a multi -family
residential complex with a man-made pond which may locally change the direction of
groundwater flow from DMW-02, DMW-02A, and DMW-02B to be upgradient of the
Site rather than cross -gradient. In addition, the EM survey identified the landfill waste
boundary closer to South Tryon Street than initially anticipated and in one location is
within 50 feet of the property boundary (Figure 2). Based on responses at different
frequencies, Geo Solutions concluded that the composition of buried waste is primarily
household garbage rather than abundant buried metallic materials.
2.1.2 Chemical Changes in Aquifer Characteristics
No chemical changes in aquifer characteristics have been identified. Field pH has been
recorded generally within one pH unit for individual wells from at least 2011 through
2023 (Table 3). Specific conductance field readings have remained generally within 500
microSiemens per centimeter (µS/cm) from at least 2011 through 2023 with the exception
of decreasing specific conductance at DMW-02A (Table 3). DMW-02A historically had
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the highest specific conductance from the Site well network with a concentration over
8,000 µS/cm in 2011. By 2023, the specific conductance had decreased to less than 6,000
µS/cm. This well also has consistently shown a pH over 12 with one exception, which
could indicate grout in the well so the specific conductance may not reflect aquifer
conditions. Field observations have noted that landfill wastes have not undergone
decomposition to the extent anticipated based on the age of the landfill cells. In select
areas of Landfill Area D (Figure 2) where disposal occurred from 1980 through 1983,
legible paper materials were observed in boring cuttings within the past ten years.
2.1.3 Physical Changes in Plume Characteristics
The lateral extent of VOC-impacted groundwater appears to be similar to 2003 based on
the available well network. Estimated plume diagrams based on total VOC concentrations
(which was calculated as a summation of VOCs which exceeded the NCDEQ 2L Standard
in one or more wells in March 2023) are shown on Figures 4A through 4C for saprolite,
PWR, and bedrock, respectively. The vertical extent of impacts has increased in both
directions in limited areas where data is available near DDW-01, DDW-02B, and
DMW-05. Between 2003 and 2023, NCDEQ 2L Standard exceedances were observed in
the DMW-05 shallow well screened from approximately 5 to 25 ft bgs (though the only
detected VOC since 2011 was 1,4-dioxane which was not analyzed in 2003) and VOC
impacts (typically benzene, 1,2-DCA, and vinyl chloride as well as 1,4-dioxane) have
been observed in deeper bedrock wells up to 133 ft bgs.
2.1.4 Chemical Changes in Plume Characteristics
The highest VOC concentration detected in March 2023 was 81.4 µg/L (1,4-dioxane at
DDW-03) as summarized in Table 6. Other than 1,4-dioxane, which was not sampled at
the Site until March 2023, the highest VOC concentration on -Site was 25.5 µg/L of
cis-1,2-DCE at DDW-03 in March 2023 which is below the NCDEQ 2L Standard of 70
µg/L. Table 6 and Figures 4A through 4C show total VOCs (summation of VOCs above
respective NCDEQ 2L Standards in one or more wells) for each well in March 2023. A
second summation in Table 6 also removed 1,4-dioxane as this was not a VOC analyzed
in 2003, therefore the totals from 2023 were not directly comparable to the totals from
2003 with this additional parameter.
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The highest total VOCs in 2023 excluding 1,4-dioxane were 22.8 µg/L at DMW-06 which
is below the maximum VOC concentration of 111 µg/L, reported for 20031. At DMW-01,
along the southeastern property boundary, the total VOC concentration decreased from
I I I µg/L in 2003 (the highest at the time) to 0.9 µg/L in 2023 for compounds exceeding
NCDEQ 2L Standards in at least one well. In addition, Mann Kendall trend analysis
presented in Table 7 and discussed in Section 2.3.1.1 found dominantly downward trends
except at the DDW-01 bedrock well nest and one compound at DMW-06. Plots of
compounds with NCDEQ 2L Standard exceedances in March 2023 and over 50%
detections are shown on Figures 5A and 5B. Figure 5A includes DDW-01 and
DDW-OIA which had low concentrations when the trend analysis began in 2008 but are
still showing mostly stable or decreasing impacts since peaks in 2009 (except TCE in
DDW-01 and vinyl chloride in DDW-OlA which may result from reductive
dechlorination). Figure 513 shows that, in most wells, the concentrations of VOC
compounds are decreasing. The increasing 1,4-dichlorobenzene trend at DMW-06 results
from two recent results and concentrations have been hovering just above and below the
2L Standard of 6 µg/L since 2008.
The combination of total VOC summations, trend analysis, and scatter plots suggest that
VOC impacts in groundwater from the landfill, particularly in saprolite and PWR, are
generally decreasing.
2.2 Refining the Site Conceptual Model
Based on data collected since Delta's report (2003) changes to the occurrence,
distribution, and potential movement of VOC-impacted groundwater (which was the
focus of the original CSM) at the Site are:
• The CSM for aquifer characteristics has not changed. The average hydraulic
gradient in March 2023 was estimated to be 0.013 ft/ft in regolith, similar to the
2003 estimate of 0.011 ft/ft.
• Groundwater elevations and flow directions are consistent with the prior CSM
with the exception of portions of the southeastern boundary. In data collected
between 2015 and 2023, depth to groundwater was reported to be between
approximately ground surface in the Sugar Creek floodplain to 60 ft bgs at higher
' Note that it is unclear how the total VOCs were calculated in 2003.
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topography. Groundwater elevations have risen substantially to the south of the
Site at DMW-02A, following construction of a multi -family residential complex
with a man-made pond which may locally change the direction of groundwater
flow along portions of the southeastern boundary. Other than that area,
groundwater flow direction has remained similar to historic observations.
• A calculation of vertical gradients since 2006 is shown in Table 5 and changes
the previous CSM slightly. The previous CSM noted an upward gradient between
deep bedrock and PWR wells. This remains the case near Sugar Creek at the
DDW-03A/DDW-03 well nest which has bedrock and PWR/saprolite screened
wells. The upward gradient is also consistently seen at the co -located saprolite
well (DMW-06) and at bedrock well pair DMW-OIA/DMW-01. PWR/saprolite
well pair DDW-02/DMW-05 shows less consistent upward gradients and several
pairs in the central area of the Site (DDW-05/DMW-09 and DDW-06/DMW-B
between bedrock and saprolite) average a negative gradient. At the
DMW-02B/DMW-02A bedrock well nest, there was historically a strong upward
gradient which has changed to a downward gradient since 2019, likely because of
construction of a man-made pond nearby which is increasing the hydraulic head
in the shallow bedrock.
• The vertical extent of impacts has changed since the prior CSM. In March 2023,
1,4-dioxane was detected above the 2L Standard in monitoring well DMW-05
which is screened within the top 25 feet of subsurface and previously assumed to
be above contamination. Several VOCs were detected above 2L Standards in
DMW-06 where the well depth is 29.5 ft bgs, supporting the 2003 conclusion that
VOC impacts are primarily restricted to the PWR and fractured bedrock zones
below 25 ft bgs. On the other hand, benzene, 1,4-dioxane, TCE, and vinyl
chloride concentrations were detected above the 2L Standards in DDW-OIA and
benzene was detected above the 2L Standards in DDW-03A, both of which are
screened below 65 ft bgs which changes the prior CSM that impacts did not extend
below 65 ft bgs. 2L Standard exceedances of 1,2-DCA and 1,4-dioxane were also
observed in deep bedrock well DMW-02B in March 2023, while benzene and
vinyl chloride are more frequently detected at that location, though this well is not
downgradient of the influence of waste. In 2003, the vertical extent of VOC-
impacted bedrock groundwater was estimated to be within 80 ft bgs and limited
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to the upper 30 feet of highly fractured bedrock, whereas data from 2023 indicates
impacts may be as deep as 133 ft bgs.
• Many VOC concentrations have decreased between 2003 and 2023 based on
Mann Kendall analysis (Table 7). The highest total VOC concentration in 2023
(including only VOCs which exceeded the 2L Standard in one or more wells in
March 2023 so impacts below the 2L Standard would not inflate the
concentrations) and excluding 1,4-dioxane (which was not measured in 2003) is
58.6 µg/L which is below the maximum VOC concentration of 111 µg/L reported
for 2003. At DMW-01, along the southeastern property boundary, the total VOC
concentration went from 111 µg/L in 2003 to 0.9 µg/L in 2023 which suggests the
plume has attenuated along portions of the southeastern boundary. Based on
concentrations of total VOCs above the 2L Standard in at least one monitoring
well in March 2023 as compared to February 2003 in PWR wells near the
confluence of Sugar Creek and the South Tributary (DMW-06 from 82 µg/L to
22.8 µg/L and DDW-03 from 100 µg/L to 14.4 µg/L excluding 1,4-dioxane which
was not analyzed in 2003), the plume has likely also receded along the
southeastern portion of the southwestern boundary.
• The horizontal extent of VOC-impacted groundwater has receded along the
southeastern boundary based on decreased concentrations of 1,2-dichloropropane,
1,4-dichloropropane, TCE, and vinyl chloride at DMW-01 (Table-3F) and
remained consistent to decreasing along the southwestern boundary based on
concentrations of vinyl chloride at DMW-06 which remain two orders of
magnitude above the NCDEQ 2L Standard in 2023 (Table 6). The extent of VOC
impacts was estimated to be within approximately 500 feet downgradient of the
edge of waste adjacent to Landfill Areas A and C near the southeastern Site
boundary in 2003. Based on the low concentration of VOCs along the
southeastern boundary this may have receded. The hydraulic divide of Sugar
Creek (described in Section 1.2) along the southwestern boundary indicates that
the estimated extent of VOC impacts from 2003 is likely consistent for PWR
groundwater along the southwestern boundary.
2.3 Evaluation of Impacts
Updated plume maps are provided in Figures 4A through 4C. Estimated extent of the
groundwater plumes in each hydrogeologic unit were inferred based on the edge of waste,
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available data, and the hydraulic divide at Sugar Creek (described in Section 1.2). The
edge of impacts was defined as total VOC concentration of 5 µg/L based on a summation
of VOCs which are above the 2L Standard in one or more wells in March 2023. A
summation was used rather than individual VOCs because the distribution of individual
VOCs is complicated by irregularity of the waste. VOC impacts continue to be detected
near the southwestern Sugar Creek (DMW-06, DMW-03, DMW-03A, DDW-02, DMW-
05, DDW-01, and DDW-01A) and southeastern (DMW-01) property boundaries.
2.3.1 Contaminant Concentrations
2.3.1.1 Groundwater
A summary of detected constituents and field parameters (pH, specific conductance, and
temperature) from monitoring well samples collected during the March 2023
groundwater sampling event is included in Table 6 and laboratory analytical reports were
included in the most recent monitoring report (Geosyntec, 2023). The following is
summarized from that report.
VOCs, metals and 1,4-dioxane were detected in samples collected from Site monitoring
wells in March 2023. Select compounds were detected above the estimated quantitation
limit (EQL) in several wells at concentrations above the 2L Standards. One or more VOCs
exceeded their 2L Standard in 9 of the 14 groundwater monitoring wells sampled, and
one or more metals were detected above their 2L Standards in 8 of the 14 monitoring
wells sampled for metals analyses (2 excluding iron and manganese). Figures 4A through
4C display maps with exceedances of the 2L Standards shown for each well. The March
2023 analytical results reveal the following:
• 1,1-DCA was detected above its 2L Standard of 6 µg/L in two wells: DDW-01 at
7.3 µg/L and DDW-02 at 8.9 µg/L.
• 1,2-DCA was detected above its 2L Standard of 0.4 µg/L in one well: DMW-02B
at 0.51 µg/L (J-qualified as estimated). Exceedances with J qualifiers indicate that
the analyte was detected below the reporting limit of the measuring instrument,
so the laboratory considers these detections as estimated values.
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• 1,2-Dichloropropane was detected above its 2L Standard of 0.6 µg/L in three
wells: DDW-01 at 0.87 µg/L (J-qualified), DDW-03 at 2.5 µg/L (1.6 µg/L in the
duplicate), and DMW-06 at 2.5 µg/L.
• 1,4-Dichlorobenzene was detected above its 2L Standard of 6 µg/L in one well:
DMW-06 at 7.6 µg/L.
• Benzene was detected above its 2L Standard of 1 µg/L in two wells: DDW-01A
at 2.0 µg/L, and DDW-03A at 4.7 µg/L.
• TCE was detected above its 2L Standard of 3 µg/L in three wells: DDW-01 at 5.0
µg/L, DDW-01A at 3.6 µg/L, and DMW-06 at 4.4 µg/L.
• PCE was detected above its 2L Standard of 0.7 µg/L in one well: DDW-01 at 6.1
µg/L.
• Vinyl chloride was detected above its 2L Standard of 0.03 µg/L in five wells:
DDW-01 at 1.8 µg/L, DDW-01A at 1.5 µg/L, DDW-03 at 3.3 µg/L (2.2 µg/L in
the duplicate), DMW-01 at 0.93 µg/L (J-qualified), and DMW-06 at 3.3 µg/L.
• 1,4-dioxane was detected above its 2L Standard of 3 µg/L in six wells: DDW-01A
at 4.7 µg/L, DDW-02 at 30.2 µg/L, DDW-03 at 81.4 µg/L (81.3 µg/L in the
duplicate), DMW-02B at 8.9 µg/L, DMW-05 at 7.4 µg/L, and DMW-06 at 66.1
µg/L. Three of the wells with 1,4-dioxane 2L Standard exceedances had one or
less other VOC 2L Standard exceedances (DDW-02, DMW-02B, DMW-05). In
some cases (DDW-0l/DDW-0lA, DMW-05/DDW-02, and
DMW-02A/DMW-02B) the deeper well had higher 1,4-dioxane concentrations
than the shallow well at the same location. Only at well cluster
DMW-06/DDW-03/DDW-03A does the 1,4-dioxane concentration decrease in
the bedrock well.
• Barium was detected above its 2L Standard of 700 µg/L in one well: DMW-02A
at 1,090 µg/L.
• Cadmium was detected above its 2L Standard of 2 µg/L in one well: DMW-01 at
44.5 µg/L.
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• Iron was detected above its 2L Standard of 300 µg/L in six wells: DDW-01 at
386 µg/L,, DMW-01 at 16,100 µg/L, DMW-02 at 3,840 µg/L, DMW-05 at
10,000 µg/L, DMW-08 at 597 µg/L, and YRW-IOC at 117,000 µg/L.
• Lead was detected above its 2L Standard of 15 µg/L in one well: DMW-02A at
187 µg/L.
• Manganese was detected above its 2L Standard of 50 µg/L in five wells: DMW-01
at 665 µg/L, DMW-02 at 2,950 µg/L, DMW-05 at 3,570 µg/L, DMW-06 at 252
µg/L, and YRW-IOC at 1,230 µg/L.
Historic groundwater analytical data are included in Table 3.
A statistical analysis of the monitoring well VOC data was performed to identify
groundwater quality trends. The Mann -Kendall non -parametric test was performed on
performance monitoring wells for each VOC with a concentration above the 2L Standard
in March 2023, and where less than half of data points in the data set were non -detect.
The Mann -Kendall test was utilized to evaluate whether the concentration of each VOC
exhibits a statistically significant increasing or decreasing trend at a given confidence
interval; for this evaluation, a confidence interval of 95% was applied. Earth Science
Information Systems' Esdat Version 5.1 software was used to perform the trend analysis.
EPA guidance on statistical analyses for groundwater data has indicated that a
concentration value lower than any of the detected measurements should be assigned
when an analytical result is "non -detect" (USEPA, 2009). Therefore, zero values were
assigned to non -detects in this analysis.
Table 7 presents the results of the trend analysis for VOCs. This analysis was performed
on data collected since March 2008, which were readily available in the Site's database.
The results of the Mann -Kendall trend analysis are summarized as follows:
• Eight (8) decreasing VOC concentration trends are considered statistically
significant at 95% confidence: PCE at DDW-01; l,l-DCA at DDW-02;
1,2-dichloropropane and vinyl chloride at DDW-03; vinyl chloride at DMW-01;
and 1,2-dichloropropane, TCE, and vinyl chloride at DMW-06.
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• Five (5) increasing VOC concentration trends are considered statistically
significant at 95% confidence: 1,1-DCA and TCE at DDW-01; TCE and vinyl
chloride at DDW-0IA; and 1,4-dichlorobenzene at DMW-06.
Mann -Kendall trend analyses were conducted for six (6) VOC compounds across six (6)
of the Site well locations (DDW-01, DDW-01A, DDW-02, DDW-03, DMW-01, and
DMW-06) and plots of this data are shown on Figure 5A and Figure 5B. Trend analyses
were not conducted for compounds where concentrations were above the 2L Standard in
March 2023 and more than half of data points in the historical data series were non -detect:
1,2-dichloropropane and vinyl chloride at DDW-01, benzene at DDW-01A, benzene at
DDW-03A, and 1,2-DCA at DMW-02B. These series were excluded from the analysis
as the Mann -Kendall analysis is not considered appropriate in evaluating trends when
more than half of data points are non -detect. In addition, trend analysis was not conducted
for 1,4-dioxane for any of its five (5) exceedances as the samples were analyzed for
1,4-dioxane for the first time in March 2023. Decreasing concentration trends for all but
five (5) of the VOCs analyzed provides statistical evidence of the overall improvement
to the groundwater quality for VOCs at the Site as a result of natural attenuation
processes.
The historical presence of chlorinated daughter products of PCE (TCE, cis-1,2-DCE, and
vinyl chloride), particularly the increase of these compounds in bedrock wells DDW-01
and DDW-01A, may indicate that some reductive dechlorination has occurred in Site
groundwater, which can occur naturally under favorable conditions. In addition to the
reductive biological process, other biodegradation and natural processes such as oxidation
of compounds under aerobic conditions, sorption, dilution, and chemical degradation,
may contribute to natural attenuation of VOCs in groundwater, which will lead to
reductions of their concentrations over time. Some of these attenuation methods are
described further in Delta's 2003 report. A Biochlor model is described in Section 2.3.3.1.
While select metals (iron, manganese, barium, cadmium, and lead during the most recent
monitoring event) consistently or sporadically exceed 2L Standards in select wells, these
impacts are not generally co -located with VOC Site impacts and are often in wells
upgradient or side -gradient of anticipated landfill impacts including YRW-10C,
DMW-08, DMW-02, and DMW-02A. In the 2003 report iron and manganese were
attributed to background conditions. While iron and manganese did not exceed 2L
Standards in upgradient well DMW-A, they could be released from lithologic units
through changes in groundwater characteristics (pH, oxidation, etc.) caused by the waste.
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YRW-IOC, which is only downgradient of the edge of a waste cell, has historically had
the highest concentrations of iron in groundwater (Table 3).
2.3.1.2 Surface Water
A summary of detected constituents and field parameters (pH, specific conductance, and
temperature) from samples collected during the March 2023 surface water sampling event
is included in Table 8, and laboratory analytical reports were included in the most recent
monitoring report (Geosyntec, 2023).
Surface water samples were collected from six locations (NT-1, NT-2, SC-1, SC-2, ST-1,
and ST-3) (Figure 2).
• Total chromium was detected above the Title 15A NCAC Subchapter 2B Surface
Water Quality Standard (213 Standard) of 11 µg/L in 2015 with a concentration of
12.6 µg/L at NT-2 and in 2019 the chromium concentration was 15.4 µg/L at SC-1
and 12.8 µg/L at SC-2.
• Lead exceeded the 2B Standard of 14 µg/L with a concentration of 22 µg/L during
one monitoring event in 2010 at NT-I.
Mercury concentrations were 0.14 µg/L (J-qualified) during a 2011 monitoring
event at SC-1 which was above the 2B Standard of 0.012 µg/L.
No other metals were detected above 2B Standards in surface water samples since at least
2008.
Four VOC compounds, 1,1-DCA, TCE, PCE, and vinyl chloride exceeded 2B Standards
at NT-2 in 2010. Bromodichloromethane and/or chlorodibromomethane exceeded 2B
Standards at SC-1 and SC-2 in 2010. No other 2B Standard exceedances of VOCs have
occurred in Site surface water since at least 2008 with the exception of 1,4-dioxane,
described below (Table 3).
Surface water samples were analyzed for 1,4-dioxane for the first time in March 2023.
1,4-dioxane was detected above its 2B Standard of 0.35 µg/L at locations NT-1 (0.71
µg/L [J-qualified]), SC-1 (0.66 µg/L [J-qualified]), SC-2 (0.84 µg/L [J-qualified]), and
ST-1 (5.0 µg/L). One of these locations (SC-1) is upriver of potential landfill influence.
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Concentrations of 1,4-dioxane are higher in the South Tributary than in the north tributary
and Sugar Creek.
2.3.2 Impacts at Point of Compliance
As discussed above, the source of metal concentrations in groundwater has less certainty
than VOC impacts, therefore the discussion related to points of compliance has been
limited to VOC impacts above respective 2L Standards. Groundwater results from the
past 15 years of monitoring (since 2008) are included in Table 3 and evaluated herein.
2.3.2.1 Southeastern Boundary
The southeastern boundary is located along South Tryon Street and is adjacent to Landfill
Area A (Figures 4A through 4C). Three monitoring wells are sampled along this
boundary including DMW-08 at the upgradient edge of waste, DMW-01 along the
property boundary, and off -Site well DMW-02 which is within 300 ft of the property line.
At DMW-08, PCE is the only VOC to historically exceed 2L Standards since 2008 and
the most recent PCE exceedance was in April 2009 with a concentration of 0.89 µg/L
(J-qualified) compared to the 2L Standard of 0.7 µg/L. No VOCs have exceeded 2L
Standards at DMW-02 since at least 2008. This suggests that these two wells delineate
impacts to the northeast and southeast in saprolite and PWR.
At DMW-01, located at the property boundary and point of compliance, VOCs have been
historically detected above the 2L Standards including, but not limited to,
1,2-dichloropropane, 1,4-dichlorobenzene, benzene, cis-1,2-DCE, TCE, and vinyl
chloride (Table 3-F). VOC concentrations have decreased over time and, in 2022 and
2023, only vinyl chloride exceeded the 2L Standard of 0.03 µg/L with a concentration of
0.93 µg/L (J-qualified). A Mann -Kendall analysis from the most recent monitoring report
(Geosyntec, 2023) indicated a statistically decreasing concentration of vinyl chloride at
this well (Table 7 and Figure 5B), suggesting VOCs are attenuating along the
southeastern boundary.
Off -Site bedrock wells DMW-02A and DMW-02B are described in Section 2.3.3.2.
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2.3.2.2 South western Boundary
The southwestern boundary is located along Sugar Creek and is adjacent to Landfill Area
C (Figures 4A through 4C). Ten monitoring wells are located along this boundary, eight
of which are part of the monitoring program. These include saprolite wells YRW-10C
and DMW-06, PWR/saprolite wells DDW-03 and DMW-05, PWR well DDW-02, and
bedrock wells DDW-01, DDW-01A, and DDW-03A.
In saprolite, YRW-10C is located at the upgradient edge of waste and has no VOC 2L
Standard exceedances since at least 2008. Near the Sugar Creek and Tributary B
confluence, saprolite well DMW-06 has had VOC 2L Standard exceedances including
1,1-DCA, 1,2-DCA, 1,2-dichloropropane, 1,4-dichlorobenzene, 1,4-dioxane, TCE, PCE,
and vinyl chloride. The VOC concentrations have generally decreased over time with
only 1,2-dichloropropane, 1,4-dichlorobenzene, 1,4-dioxane, TCE, and vinyl chloride
exceeding 2L Standards in 2023 (Table 6). Mann -Kendall analysis indicates statistically
decreasing concentrations except for 1,4-dioxane which has only been measured once and
1,4-dichlorobenzene which was increasing (Table 7). The 1,4-dichlorobenzene
concentration was 7.6 µg/L which is only slightly above the 2L Standard of 6 µg/L and
has hovered around this concentration since at least 2008 (Figure 5B) while the
1,4-dioxane concentration of 66.1 µg/L was more than an order of magnitude above the
3 µg/L 2L Standard.
Saprolite/PWR well DDW-03 has a similar history to co -located DMW-06 with
exceedances of 1,2-DCA, 1,2-dichloropropane, 1,4-dichlorobenzene, 1,4-dioxane,
benzene, TCE, and vinyl chloride since 2008. Only 1,4-dioxane, 1,2-dichloropropane,
and vinyl chloride exceeded the 2L Standards in 2023 with decreasing trends for the latter
two compounds (Table 7). The concentration of 1,4-dioxane at DDW-03 was the highest
on -Site at 81.4 µg/L. Monitoring well DMW-05 is also screened in saprolite/PWR but
further north along Sugar Creek. In September 2010 there were 2L Standard exceedances
of 1,1-DCA and PCE in this well and in September 2011 there were exceedances of
1,1-DCA, 1,2-dichloropropane, TCE, PCE, and vinyl chloride. Since then, the only VOC
2L Standard exceedance was 1,4-dioxane in 2023 (Table 34).
PWR well DDW-02 is co -located with DMW-05 and has historical exceedances of
1,1-DCA, 1,2-DCA, benzene, PCE, trichlorofluoromethane, and vinyl chloride. Notably,
there were no 2L Standard exceedances in September 2010 or 2011, suggesting that the
two co -located wells may have been mis-labeled during these sampling events
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(Table 3-C). VOC concentrations have decreased over time and only 1,1-DCA and
1,4-dioxane exceeded 2L Standards at DDW-02 in 2023. The statistically decreasing
trend for 1,1-DCA (Table 7 and Figure 5B) with a concentration of 8.9 µg/L in 2023
compared to the 2L Standard of 6 µg/L indicates that VOC concentrations continue to
attenuate in PWR along the southwestern boundary.
Bedrock well DDW-03A is located at the confluence of Sugar Creek and Tributary B and
the only VOC with concentrations above the 2L Standard since 2008 is benzene. The
2023 concentration of benzene in this well was 4.7 µg/L compared to the 2L Standard of
1 µg/L and has consistently exceeded the 2L Standard since 2017 (Table 3-E). Benzene
is below the 2L Standard in the co -located saprolite and PWR wells DMW-06 and
DDW-03.
Bedrock wells DDW-01 and DDW-01A are co -located along the northern portion of the
southwestern boundary. These wells have had 2L Standard exceedances of 1,1-DCA,
1,2-dichloropropane, 1,4-dioxane (deeper well DDW-01A only), benzene, TCE, PCE,
and vinyl chloride since 2008. At DDW-01, 1,1-DCA, 1,2-dichloropropane, TCE, PCE,
and vinyl chloride remain above the 2L Standards in 2023 (Table 6) and Mann -Kendall
analysis indicates upward trends for 1,1-DCA and TCE but a downward trend for PCE
(Table 7 and Figure 5A). TCE and vinyl chloride are similarly increasing at DDW-0IA
while PCE has decreased to below the 2L Standard. Benzene and 1,4-dioxane also remain
above the 2L Standard at DDW-01A in 2023. The decreasing PCE and increasing
daughter product concentrations suggest reductive dechlorination is occurring in bedrock
along the southwestern boundary.
2.3.2.3 Vertical Point of Compliance — Deep Bedrock
Compliance monitoring wells for the deeper aquifer DDW-01A, DDW-03A and
DMW-02B reported VOC concentrations above 2L Standards in March 2023, suggesting
potential downward migration of VOCs into the deeper bedrock (Table 6). Other than
recent hydraulic changes near DMW-02B, these wells have shown a consistent upward
gradient, suggesting that vertical migration of VOC impacts would migrate by dispersion
and diffusion rather than advection.
At DDW-0IA, concentrations of TCE and vinyl chloride above the 2L Standard correlate
with shallower bedrock well DDW-01 and indicate reductive dichlorination. Fairly
consistent exceedances of the benzene 2L Standard in DDW-01A, DDW-03A, and
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DMW-02B do not appear to correlate to shallower wells which historically show few 2L
Standard exceedances for benzene. DDW-OIA and DMW-02B also had 2L Standard
exceedances of 1,4-dioxane in March 2023 whereas their shallower counterparts were
below the 2L Standard for this compound.
2.3.3 Off -Site Migration Evaluation
Off -Site migration was evaluated for the three hydrogeologic units combined using a
BIOCHLOR model for the southeastern boundary and southwestern boundary based on
groundwater flow direction and concentrations in nearby wells. In addition, off -Site
migration into surface water was considered. A receptor survey showing wells, springs,
and surface water intakes used as potable water within 1,500 feet from the edge of waste
(as applicable) is included as Appendix F. This shows two inactive and two abandoned
water supply wells west of Sugar Creek and three non -drinking water supply wells
approximately 1,500 feet south of the waste boundaries.
2.3.3.1 BIOCHLOR Model
In 2003, Delta used the BIOCHLOR Natural Attenuation Decision Support System
(BIOCHLOR) by the United States Environmental Protection Agency (EPA) to simulate
downgradient chlorinated ethene concentrations at the Site through natural attenuation
via advection, dispersion, linear adsorption, and biotransformation (reductive
dechlorination). This program specifically models PCE and daughter products. The
model in 2003 predicted that PCE would attenuate to below the 2L Standard in 2012,
TCE by 2017, cis-1,2-DCE by 2004, and vinyl chloride by 2020. By 2019 (with one
exception in 2022), PCE in saprolite and PWR monitoring wells was below the 2L
Standard of 0.7 µg/L, seven to ten years after the model predicted. Similarly, TCE was
slightly above the 2L Standard of 3 µg/L in one saprolite well (DMW-06) with a
concentration of 4.4 µg/L in 2023, six years after it was predicted to attenuate. Vinyl
chloride remains above the 2L Standard of 0.03 µg/L in five wells (three in
saprolite/PWR) with concentrations up to 3.3 µg/L. Overall, the 2003 model prediction
appears to be within a decade for PCE and TCE but is incorrect for vinyl chloride, which
is still an order of magnitude above the 2L Standard.
The March 2023 groundwater monitoring data does not provide an appropriate flowpath
from the source area to downgradient with which to re -calibrate the model. In 2003, Delta
evaluated YRW-06A as a source area for DDW-03 and DMW-01 as a source area for
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DMW-02A (which is upgradient to cross -gradient based on recent hydraulic monitoring)
in order to predict the time to attenuation. March 2023 data from YRW-06A is not
available, but concentrations at DDW-06 can be used as surrogate source area
concentrations while holding the other model assumptions the same as 2003. In this
scenario, TCE is anticipated to decrease to below the 2L Standard within 450 feet of the
source and vinyl chloride over 750 feet from the source after 25 years. Biochlor input and
output are shown in Appendix G and derivation of input values is described in the Delta
report (2003). These results suggest that the Sugar Creek hydraulic boundary, rather than
attenuation, is controlling migration.
2.3.3.2 Southeastern Boundary
As described above, only select metals have exceeded the 2L Standards at DMW-02 since
at least 2008. These metals could represent background conditions (as stated in the 2003
report) or factors unrelated to the landfill. No VOCs have exceeded 2L Standards at
DMW-02 since at least 2008, suggesting that off -Site migration of VOCs along the
southeastern boundary is not occurring in the PWR. In bedrock, benzene and vinyl
chloride periodically exceed the 2L Standard and there were exceedances of 1,2-DCA
and 1,4-dioxane at DMW-02B in March 2023 but not in previous monitoring events
(though note that 1,4-dioxane was not previously sampled). Benzene at DMW-02B first
exceeded the 2L Standard in September 2017 which was prior to the change in hydraulic
gradient. Vinyl chloride first exceeded the 2L Standard in September 2021, following the
reversal in hydraulic gradient which changed the vertical gradient to downwards and the
horizontal groundwater flow direction to be towards the landfill. The variation of benzene
and vinyl chloride compounds from above to below the 2L Standard between monitoring
events suggests the edge of a groundwater plume (Table 2-I).
Benzene and vinyl chloride also periodically exceed the 2L Standard in PWR well
DMW-01 on the southeastern boundary which is cross -gradient of DMW-02B. 1,2-DCA
and 1,4-dioxane have not exceeded the 2L Standard at DMW-01. Benzene and vinyl
chloride also have not exceeded the 2L Standard in shallower well DMW-02A co -located
with DMW-02B since at least 2008. While off -Site impacts may exist at DMW-02B, the
hydraulic gradient at this location is towards the Site following construction of a man-
made pond (Figure 3), therefore, impacts would not travel further off -Site.
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2.3.3.3 Southwestern Boundary
While concentrations of VOCs along the southwestern boundary exceed 2L Standards,
this boundary is located along Sugar Creek which acts as a hydraulic divide for shallow
groundwater migration. The shallow groundwater elevation at DDW-03A (Table 2) and
consistent upward hydraulic gradient at the DDW-03/DDW-03A and DDW-01/DDW-
01A well nests (Table 5) support this. In addition to Site data, a network of 14
saprolite/PWR wells and eleven bedrock wells located west of Sugar Creek indicate that
the horizontal hydraulic gradient is to the east towards Sugar Creek (Hart & Hickman,
2023). This off -Site data confirms that Sugar Creek acts as a hydraulic divide for saprolite
and PWR groundwater.
2.3.3.4 Surface Water
Surface water concentrations since 2008 are included in Table 3 and do not indicate
impacts from VOCs in groundwater. Upstream locations SC-1, NT-2, and ST-3 have
shown single -event 2B Standard exceedances for 1,4-dioxane, bromodichloromethane,
and chlorodibromomethane (SC-1) and 1,1-DCA (NT-2). At downstream locations SC-2,
NT-1, and ST-1 the only VOC with exceedances of the 2B Standard is 1,4-dioxane. The
March 2023 1,4-dioxane concentrations at SC-2, NT-1, and ST-1, respectively were 0.84
µg/L (J-qualified), 0.71 µg/L (J-qualified), and 5.0 µg/L as compared to the 2B Standard
water supply in stream target value of 0.35 µg/L and upstream concentration 0.66 µg/L
(J-qualified) in SC-1.
Other than 1,4-dioxane, there does not appear to be any VOC impacts in the surface water
and the only 1,4-dioxane concentration more than 1 µg/L above the 2B Standard is located
at ST-1 in the South Tributary. The confluence of this tributary with Sugar Creek occurs
upstream of sample SC-2 where 1,4-dioxane concentrations were less than 0.2 µg/L
above the upstream concentrations from north of the confluence. As such, there does not
appear to be off -Site migration of landfill impacts through surface water with the potential
exception of low concentrations of 1,4-dioxane. The low concentrations of 1,4-dioxane
observed in Sugar Creek should decrease with distance through dilution and
photodegradation (Dehghani et al, 2022).
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4. SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS
The following sections summarize findings conclusions, and future recommendations
based on data collected since the 2003 Assessment of Corrective Measures Report (Delta,
2003).
4.1 Summary and Conclusions
• Aquifer conditions and plume characteristics have remained similar to 2003.
Overall VOC concentrations have decreased but the vertical extent of impacts has
increased.
• The CSM remains similar to that developed in 2003 with the exception of a
reversal of hydraulic gradient off -Site to the south as a result of a man-made pond
which drives water towards or cross -gradient of the Site. In addition, select VOC
compounds have been detected in deep bedrock wells including benzene and 1,4-
dioxane which do not correlate to shallow wells.
• Contaminant concentrations have decreased with time with a few exceptions
(mostly PCE degradation products) which have increasing concentrations in
select wells.
• VOC impacts above the 2L Standards have been identified in saprolite and PWR
wells along the property boundaries (DMW-01, DMW-06, DDW-03, DDW-02,
and DMW-05) at the Site in 2023, however, they are generally lower than those
identified in 2003. Metals above the 2L Standards have additionally been detected
in saprolite and PWR wells YRW-IOC, DMW-08, D MW-01, DMW-02,
DMW-06, and DMW-05.
• Vertical dispersion of impacts appears to have occurred with VOC impacts
detected in shallow bedrock well DDW-01 and deep bedrock wells (DDW-01 A,
DDW-03A, and DMW-02B). Metals above the 2L Standards have additionally
been detected in bedrock wells DMW-02A and DDW-01.
• Off -Site migration of landfill impacts is limited to the southwest for saprolite
and PWR groundwater by a hydraulic divide at Sugar Creek. VOC concentrations
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in the creek do not show impacts from the landfill with the potential exception of
1,4-dioxane though this compound has only been analyzed once to date. Along
the southeastern boundary, concentrations of VOCs have decreased and off -Site
wells do not indicate migration within the PWR unit though VOC impacts have
been detected in bedrock groundwater.
4.2 Recommendations
Based on this evaluation, minor modifications of the monitoring program are warranted
including the temporal and analytical monitoring requirements. Geosyntec recommends
the following modifications to the selected remedy:
• Reduction of the groundwater and surface water monitoring frequency from semi-
annual to annual. Nearly 30 years of data show primarily decreasing VOC
concentrations in groundwater and a plume contained by low concentrations along
the southeastern boundary and a hydraulic divide (Sugar Creek) along the
southwestern boundary.
• Reduction of the reporting frequency from semi-annual to annual to match the
proposed reduction in monitoring frequency.
• Modification of the analytical list to add 1,4-dioxane (per NCDEQ's 29 May 2018
memorandum entitled "1,4-Dioxane Analysis, Solid Waste Section Limits, and
Laboratory Analytical Methods") and per- and polyfluoroalkyl substances
(PFAS) for at least two consecutive sampling events (per NCDEQ's 13 March
2023 memorandum entitled "PFAS Monitoring Requirements for Solid Waste
Sanitary Landfills" and subsequent 17 July 2023 memorandum entitled
"Clarification of PFAS Monitoring Requirements for Solid Waste Sanitary
Landfills ".
Geosyntec proposes that an annual groundwater and surface water monitoring program
begin in September 2024 (removing the September 2023 and March 2024 events) in
accordance with the proposed schedule shown in Table 9. This timeline will allow
sufficient time to modify the Water Quality and Landfill Gas Monitoring Plan
("Monitoring Plan"; Geosyntec, 2017) to incorporate the changes above. This will include
temporarily changing from a passive sample collection method with passive diffusion
bags (PDBs) to a low -flow sampling method due to the volume requirements of the Solid
Waste Section requested PFAS analysis (EPA Method 1633).
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In addition, a September monitoring event would coordinate with the City of Charlotte's
annual groundwater monitoring at the Police and Fire Training Academy (Academy) site
located at 1770 Shopton Road, across Little Sugar Creek from the Site. The routine
monitoring program for the Academy includes sampling 10 York Road Site monitoring
wells for PFAS including YRW-1 OC, YRW-09A, DMW-05, DDW-02, DDW-03, DMW-
06, DMW-02, DDW-01A, DDW-01, and DDW-03A. Groundwater samples from these
or a subset of these wells have been analyzed for PFAS annually since 2020 using EPA
Method 537.1. PFAS sampling results from those monitoring events are included in
Appendix H. Additional data will be collected in September or October 2023 as part of
routine monitoring for the Academy site and will be provided to NCDEQ.
Geosyntec and the City of Charlotte request until September 2024 to evaluate changes to
the monitoring program, revise sampling methodologies, evaluate laboratory methods,
and correlate with the monitoring program at the adjacent Academy site.
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5. REFERENCES
Dehghani, M, Naseri, M., Nadeem, H., Banaszak Holl, M, Batchelor, W, 2022,
Photocatalytic Degradation of 1,4-Dioxane and Malachite Green over Zinc
Oxide/Cellulose Nanofiber Using UVA/B from Direct Sunlight and a Continuous
Flow Reactor. ACS EST Water 2022, 2, 5, 786-797.
Delta Environmental Consultants, Inc, 2003, Assessment of Corrective Measures Report,
Former York Road Landfill, NCDENR Permit No. 60-03.
Daniel, Charles C, III, and Payne, R.A., 1990, Hydrogeologic Unit Map of the Piedmont
and Blue Ridge Provinces of North Carolina, USGS Water -Resources
Investigations Report 90-4035.
Geosyntec, 2017, Water Quality and Landfill Gas Monitoring Plan, Former York Road
Landfill NCDEQ Permit No. 60-03.
Geosyntec, 2023, Semi -Annual Monitoring Report, First Half 2023, Former York Road
Landfill, NCDENR Permit No. 60-03.
Hart & Hickman, 2023, Annual Groundwater Monitoring and PFAS Assessment Report
Revision No. 01, Charlotte Police and Fire Training Academy, EPA ID
#NCD991278623.
USEPA, 2009, Statistical Analysis of Groundwater Monitoring Data at RCRA
Facilities, Unified Guidance.
GC5699H/CAR230086 36 08.2023

TABLES

Table 1
Groundwater Well Construction Details
Former York Road Landfill
Charlotte, North Carolina
Well ID
Well
Depth
(ft BTOC)
Lithology
TOC Elevation
(ft above
NGVD)
Ground
Elevation
(ft above
NGVD)
Top of
Screened
Interval
(ft above
NGVD)
Bottom of
Screened
Interval
(ft above
NGVD
Screened
Length
(ft)
March 2023
Water Level
(ft BTOC)
March 2023
Groundwater
Elevation
(ft above NGVD)
DDW-01
60.0
Bedrock
585.49
583.26
538.25
523.25
15.0
7.12
578.37
DDW-OlA
100.0
Bedrock
585.06
583.31
493.30
483.30
10.0
6.30
578.76
DDW-02
55.0
PWR
587.96
585.57
545.53
530.53
15.0
11.99
575.97
DDW-03
61.0
PWR/Saprolite
585.59
582.72
536.72
521.72
15.0
10.26
575.33
DDW-03A
133.0
Bedrock
584.70
582.89
464.86
449.86
15.0
3.08
581.62
DDW-05
50.0
Bedrock
602.13
599.81
564.79
549.79
15.0
5.43
596.70
DDW-06
70.0
Bedrock/PWR
621.88
619.32
564.32
549.32
15.0
29.70
592.18
DMW-01
45.0
PWR
626.55
626.75
596.75
581.75
15.0
32.79
593.76
DMW-02
1 22.0
PWR/Saprolite
597.33
597.53
1 585.53
575.53
10.0
6.52
590.81
DMW-02A
47.0
Bedrock
595.51
593.54
558.54
546.54
12.0
1.25
594.26
DMW-02B
84.5
Bedrock
595.20
593.52
518.52
508.52
10.0
5.98
589.22
DMW-05
20.0
PWR/Saprolite
587.98
585.59
580.59
565.59
15.0
11.95
576.03
DMW-06
29.5
Saprolite
584.76
582.39
562.89
552.89
10.0
10.24
574.52
DMW-08
62.0
PWR
670.48
670.69
623.69
608.69
15.0
56.27
614.21
DMW-09
20.0
Saprolite
1 602.48
599.70
594.70
579.70
15.0
5.59
596.89
DMW-A
1 45.0
Saprolite
684.52
684.52
659.52
639.52
20.0
40.48
644.04
DMW-B
30.0
Saprolite
622.29
619.50
604.50
589.50
15.0
29.88
592.41
NEB-PZ-1
41.5
Saprolite
667.79
667.49
641.09
626.09
15.0
NEB-PZ-2
34.6
Saprolite
660.71
660.94
641.24
626.24
15.0
NEB-PZ-3
29.5
PWR
641.52
641.70
627.00
612.00
15.0
-
YRW-06A
27.9
Saprolite
587.63
585.11
567.11
557.11
10.0
8.89
578.74
YRW-07
23.1
Saprolite
624.80
622.93
604.93
599.93
5.0
13.09
611.71
YRW-08A
22.8
Saprolite
587.45
584.22
566.22
561.22
5.0
YRW-09A
26.5
Saprolite
586.11
582.86
560.86
555.86
5.0
YRW-IOC
16.5
Saprolite
589.37
585.96
574.46
1 569.46
1 5.0
13.48
575.89
YRW-11B
20.0
Saprolite
602.96
600.19
585.19
1 580.19
1 5.0
6.03
596.93
WSW-2
80.0
Details not known
WSW-3
100.0
1 Details not known
Notes:
1. PWR - Partially Weathered Rock; NGVD - National Geodetic Vertical Datum; BTOC - below top of casing.
2. Well construction information derived from historical site -related monitoring reports prepared by HDR and Delta, with the
exception of NEB-PZ-1, -2, and -3. These piezometers were surveyed by GEL on 09 November 2015.
3. WSW-2 and WSW-3 well depths reported by well owner.
CAR23OO86 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 2
Historical Groundwater Elevations
Former York Road Landfill
Charlotte, North Carolina
Well ID
Mar-06
Sep-06
Feb-07
Sep-07
Mar-08
Sep-08
Mar-09
Sep-09
Mar-10
Sep-10
Mar-11
Sep-11
Mar-12
Sep-12
Mar-13
Sep-13
Mar-14
Sep-14
DDW-01
578.01
577.95
579.17
575.59
577.66
577.21
578.74
576.48
578.81
576.32
577.60
576.26
578.09
577.07
578.74
576.58
578.79
576.77
DDW-OlA
578.41
578.32
579.54
575.97
578.01
577.61
579.14
576.88
579.20
576.68
577.94
576.66
578.46
577.47
579.10
576.96
579.16
577.17
DDW-02
575.77
575.58
576.81
574.01
575.91
575.42
577.07
574.70
576.59
574.60
575.73
574.50
575.91
574.90
576.33
574.77
576.52
574.80
DDW-03
575.57
575.26
576.26
574.00
575.34
574.83
576.37
574.53
576.17
574.54
575.44
574.40
575.56
574.77
575.78
574.70
576.16
574.73
DDW-03A
1 580.34
579.70
1 581.05
578.75
579.95
579.32
580.87
579.42
1 581.70
579.66
580.03
579.39
1 580.57
580.04
1 580.86
580.20
581.53
579.91
DDW-05
597.88
597.25
598.39
595.84
597.68
596.59
598.15
596.10
597.83
594.73
597.60
595.25
597.24
596.28
597.83
1 595.95
598.21
1 597.19
DDW-06
592.35
591.77
592.89
591.44
591.38
591.70
591.77
592.07
593.45
591.84
591.29
590.71
591.43
590.74
591.07
591.04
591.85
591.10
DMW-01
592.25
591.30
594.27
590.91
590.81
590.42
591.14
591.00
595.44
592.05
590.52
590.29
590.92
590.36
590.38
590.95
591.25
591.35
DMW-02
585.14
584.15
584.84
583.33
584.19
583.43
585.04
583.87
585.48
583.87
584.05
583.29
584.41
584.11
584.69
584.17
585.30
584.33
DMW-02A
552.51
551.63
552.22
550.12
549.81
550.96
553.01
552.32
556.11
1 556.06
552.37
1 550.44
551.58
1 548.98
550.83
552.17
555.06
553.39
DMW-02B
1 590.03
589.85
1 590.89
589.50
592.95
589.30
590.23
589.54
590.64
589.28
589.72
589.10
589.63
589.28
589.77
589.52
590.34
589.58
DMW-05
575.87
575.63
578.24
573.50
576.78
574.96
578.94
574.08
577.49
573.95
576.10
574.17
576.50
574.67
1 577.48
574.39
577.38
574.38
DMW-06
574.94
574.59
575.55
573.44
574.76
574.23
575.76
573.96
575.47
573.97
574.88
573.83
574.87
574.13
575.09
574.07
575.46
574.08
DMW-08
614.08
615.03
614.28
613.76
612.36
611.35
610.82
610.85
611.32
612.09
611.13
610.65
610.59
610.80
610.69
610.86
610.68
612.02
DMW-09
597.82
597.40
598.55
596.04
597.96
596.78
598.25
596.27
597.97
594.95
597.85
595.45
597.47
596.49
598.02
596.17
598.36
597.42
DMW-A
645.90
645.70
646.32
645.56
644.15
643.77
643.60
644.95
1 644.94
643.19
1 642.92
642.97
642.68
642.32
643.31
642.92
643.98
DMW-B
1 592.51
591.90
1 593.05
591.61
591.46
591.11
591.79
592.29
593.60
592.09
591.41
590.85
591.56
590.84
591.15
591.23
591.99
1 591.27
YRW-06A
576.72
577.78
577.33
577.76
577.30
579.04
577.29
576.98
578.30
1 577.40
1 578.29
577.39
578.89
1 577.44
YRW-07
-
-
608.29
612.10
609.59
612.45
610.07
612.60
609.88
-
608.83
610.56
609.65
611.03
609.75
612.17
610.61
YRW-IOC
575.92
575.78
577.13
574.64
575.95
575.36
576.86
575.01
577.12
574.99
575.82
574.97
575.84
575.21
576.14
574.97
576.31
575.02
YRW-1IB
-
-
595.71
597.99
598.09
598.36
1 598.36
1 598.12
594.66
-
595.52
1 597.29
596.28
598.08
596.02
598.59
597.35
Notes:
Groundwater elevations above are dispalyed in ft above National Geodetic Vertical Datum.
Data prior to 2015 were obtained from previous reports prepared by others.
Blank cells represent unavailable historical data or no reading taken.
Highest Period Reading
Lowest Period Reading
Bold values are suspected to be anomalous (Sep-09 at DMW-A)
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 2
Historical Groundwater Elevations
Former York Road Landfill
Charlotte, North Carolina
Well ID
Mar-15
Sep-15
Mar-16
Sep-16
Mar-17
Sep-17
Mar-18
Sep-18
Mar-19
Sep-19
Mar-20
Sep-20
Mar-21
Sep-21
Mar-22
Nov-22
Mar-23
DDW-01
578.69
575.19
578.00
575.98
577.83
576.49
578.19
576.10
579.09
577.36
579.01
577.03
579.24
576.84
577.61
576.72
578.37
DDW-OlA
578.75
575.54
578.36
576.34
578.17
576.86
578.50
576.44
579.45
577.72
579.34
577.43
579.58
577.21
578.01
577.09
578.76
DDW-02
576.31
573.73
576.02
574.22
575.57
574.53
575.61
574.00
576.57
575.20
576.47
575.06
576.63
574.92
575.46
574.70
575.97
DDW-03
575.93
573.74
575.79
574.21
575.28
574.40
575.08
573.67
575.73
574.61
575.60
574.57
575.83
574.49
574.93
574.35
575.33
DDW-03A
580.91
1 578.71
581.79
1 579.51
580.67
1 580.18
580.73
1 578.87
582.92
579.65
1 582.92
581.25
1 583.15
581.66
1 581.75
580.20
1 581.62
DDW-05
598.74
595.03
597.88
596.02
597.83
596.63
597.91
595.62
598.35
596.45
597.98
595.62
597.77
595.73
596.33
595.14
596.70
DDW-06
591.15
590.01
592.95
590.98
591.16
591.22
590.74
590.40
593.69
592.11
592.99
592.20
593.23
591.51
591.44
590.64
592.18
DMW-01
591.14
591.25
595.21
594.59
591.86
594.01
594.59
589.78
595.20
592.05
594.93
593.39
596.46
594.43
593.80
591.63
593.76
DMW-02
584.88
583.36
585.58
584.21
584.46
584.42
584.62
582.35
586.82
583.67
586.50
584.50
590.63
590.28
590.37
590.18
590.81
DMW-02A
552.75
550.79
555.26
550.74
554.04
556.90
563.63
570.98
593.07
594.07
594.41
594.27
594.09
593.79
593.34
593.25
594.26
DMW-02B
590.16
1 589.04
590.55
1 589.51
589.72
589.66
1 589.87
581.75
592.20
1 582.18
589.85
1 584.86
589.42
1 587.94
589.37
1 585.88
589.22
DMW-05
577.13
573.30
576.34
573.81
575.74
574.08
576.10
573.60
577.33
574.93
577.65
574.60
577.54
574.26
575.33
574.03
576.03
DMW-06
575.26
573.17
575.07
573.65
574.63
573.75
574.44
573.15
574.91
573.90
574.72
573.83
574.83
573.66
574.13
573.60
574.52
DMW-08
611.77
611.50
612.51
613.45
612.62
612.44
611.89
611.77
612.81
614.45
614.24
622.88
617.51
617.07
615.93
614.84
614.21
DMW-09
598.88
595.25
598.01
596.24
598.06
596.85
598.14
595.81
598.48
596.67
598.11
595.86
597.94
595.98
596.66
595.38
596.89
DMW-A
643.33
642.60
644.28
644.15
642.87
643.08
642.26
642.42
644.71
645.91
645.92
647.11
647.07
646.84
645.18
644.28
644.04
DMW-B
591.29
1 590.17
593.23
1 591.19
591.34
1 591.43
590.89
1 590.58
593.94
1 592.35
593.23
592.46
593.46
591.74
591.64
590.82
592.41
YRW-06A
578.54
576.35
578.67
576.96
577.90
577.28
577.81
576.51
579.16
577.49
578.86
577.64
579.41
577.86
578.28
1 577.65
578.74
YRW-07
611.67
608.72
612.61
610.13
610.82
610.22
610.90
609.22
614.06
611.65
613.69
611.64
613.84
612.42
611.11
609.91
611.71
YRW-IOC
576.16
574.33
575.61
574.53
575.46
574.74
575.46
574.51
576.49
575.08
576.53
574.91
576.44
574.72
575.07
574.73
575.89
YRW-11B
598.84
595.09
598.19
596.06
597.97
596.67
598.09
595.63
598.97
596.46
598.31
595.52
598.22
595.61
597.43
594.97
596.93
Notes:
Groundwater elevations above are dispalyed in ft above National Geodetic Vertical Datum.
Data prior to 2015 were obtained from previous reports prepared by others.
Blank cells represent unavailable historical data or no reading taken.
Highest Period Reading
Lowest Period Reading
Bold values are suspected to be anomalous (Sep-09 at DMW-A)
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-A
Historical Groundwater Monitoring Data (DDW-01)
Former York Road Landfill
Charlotte, North Carolina
Sample Date
3/18/2008 9/17/2008 4/7/2009 9/9/2009 3/10/2010 9/23/2010 3/29/2011 9/21/2011 3/20/2012 9/26/2012 3/6/2013 9/10/2013 3/26/2014 9/23/2014 3/6/2015 9/22/2015
Constituent
Units
NC 2L
1, 1 -dichloroethane
µ /L
6
3.0
6.7
8.0
9.3
7.7
8.8
5.8
3.2 - 3.3J
2.9 - 3.1J
2AJ
2AJ
4.OJ
2.1
2.9J
1.6
3.0
1, 1 -dichloroethene
L
350
-
1.1
1.2J
1.4J
1.1J
1.4
-
-
-
-
-
-
-
-
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
0.16J
-
1,2-dichloro ro ane
L
0.6
-
0.56J
0.58J
0.60J
0.68
0.59J
0.34J
-
0.34J
-
0.35J
-
1,4-dichlorobenzene
/L
6
-
-
-
-
-
-
-
1,4-dioxane
L
3
-
-
-
-
-
-
-
Acetone
L
6,000
31.0
-
-
-
-
-
-
-
-
-
-
-
Barium
L
700
17.0
18.0
18.01
20.OJ
19.01
24.0
90.5
21.5 - 23 AJ
22.4 - 22.8J
20.0
22.OJ
20.9J
22.3
21.6J
22.8
20.3
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Cadmium
/L
2
-
-
-
-
-
-
-
-
Chloride
/L
250,000
-
-
10,000
-
-
-
-
-
Chlorobenzene
L
50
-
-
-
-
-
-
-
-
0.24J
Chloromethane
L
3
-
-
-
-
-
0.28J
0.26J
-
Chromium III+VI
L
10
1.7J
3.2J
4.1J
4.8J
5.1J
8.1
2J
5.7J
-
-
-
-
-
-
cis- l,2-dichloroethene
L
1 70
1.8
4.9
6.2
8.1
7.0
8.3
4.9
3 - 3.1J
2.5J
2.1J
2.1J
4J
2.5
3.8J
2.2
4.3
COD
L
-
-
-
33,000
-
-
-
-
-
-
-
-
-
Dichlorodifluoromethane
L
1,000
-
I -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
-
340
1 326
241
324
363
312
360
351
-
358
Iron
L
300
67.0
170
87.OJ
55.0
438
629 - 971
193 - 307J
108J
276J
78.1J
122
-
56.7
62.6
Lead
L
15
-
-
-
-
0.39J
-
-
-
-
-
-
Man anew
L
50
2.OJ
3.OJ
1.0J
14.OJ
2.OJ
3.OJ
266
13 - 27J
8.01
-
6.OJ
-
Merc
L
1
-
-
O.01J
-
0.12J
0.26
-
-
-
Nitrate (as NO3-)
gg/L
10,000
-
400
-
-
-
-
-
-
-
-
-
H
SU
-
-
-
6.9
6.8
6.4
6.7
7.4
6.7
7.1
6.9
1
6.8
Sulphate
L
250,000
-
1,5001
-
-
-
-
-
-
-
-
Temperature
°C
-
-
-
-
16.4
1 17.8
16.5
16.7
15.8
17.0
16.6
16.8
16.9
Tetrachloroethene
µ /L
0.7
3.6
12.0
14.0
12.0
12.0
13.0
5.9
2.2
3.0
1.9
1.5
2.6
Toluene
/L
600
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
0.95J
3.1
3.4
3.3
3.6
3.9
1.5
0.95 - 1J
0.99 - LIJ
0.79J
0.85J
1.1
0.71J
1.1
1.9
Trichlorofluoromethane
/L
2,000
-
1.7J
1.1
1.2J
1.1 J
1.2
0.42J
0.22J
0.21 - 0.26J
0.40J
-
-
-
-
-
Turbidi
NTU
-
-
-
25.0
1 36.0
3.0
2.0
3.0
7.0
2.0
6.4
Vinyl Chloride
0.03
-
-
-
-
-
-
-
-
-
X lene (m & )
/L
500
2.0
-
-
-
-
-
X lene o
L
500
1.0
-
-
-
-
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-A
Historical Groundwater Monitoring Data (DDW-01)
Former York Road Landfill
Charlotte, North Carolina
Sample Date
3/24/2016 9/27/2016 3/27/2017 9/26/2017 3/30/2018 9/28/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 1 3/30/2022 1 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1, 1 -dichloroethane
µ /L
6
1.7
6.5
6.1
5.5
5.7
-
5.7
4.8
8.0
.4
7.3
1, 1 -dichloroethene
/L
350
-
-
-
-
-
-
-
-
-
-
-
-
0.65 J
0.63 J
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
1,2-dichloro ro ane
/L
0.6
-
-
-
-
-
-
1.1
0.87 J
0.87 J
1,4-dichlorobenzene
/L
6
-
-
-
1.5
-
2.6
-
0.66 J
-
1,4-dioxane
3
-
-
-
-
-
-
-
1 1.5
Acetone
/L
6,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
L
700
24.0
25.0
26.7
22.7
25.2
45.9
30.0
27.5
26.8
29.5
26
28.6
22.3
-
23.6
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
0.5 J
0.63 J
Cadmium
L
2
-
-
-
-
-
-
-
-
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
L
50
-
2.6
3.1
3.0
4.5
-
3.8
5.2
4.5
3.4
4.5
4.7
4.6
4.3
Chloromethane
L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
L
10
10.0
9.1
9.8
W 11.0
9.4
8.1
-
-
-
-
-
-
-
-
4.4
cis-1,2-dichloroethene
/L
70
2.5
12.3
12.1
11.6
14.7
-
13.9
19.8
15.7
17.0
12.4
16.5
20.3
19.2
19.6
COD
L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Dichlorodifluoromethane
L
1 1,000
-
-
-
-
-
-
-
-
-
-
-
7
8
Specific Conductance
S/cm
-
366
362
361
354
366
307
329
342
346
353
334
346
395
355
1,092
Iron
L
300
76.1
1,030
-
240.0
4,160
-
844
-
900
-
322
456
597
Lead
L
15
-
-
-
-
-
-
-
-
-
-
Man anew
L
50
7.0
19.0
12.9
293
102
78.1
75.8
102
79.3
27
Mercury
L
1
-
-
-
-
-
-
-
-
-
Nitrate as NO3-
L
10,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.9
1 6.9
6.8
6.9
6.8
7.2
6.7
6.9
6.8
6.5
6.8
6.8
6.83
6.6
6.72
Sulphate
L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Temperature
°C
-
16.7
21.5
17.7
21.3
17.9
22.6
16.1
19.7
16.5
19.7
17.6
20
17
17.9
20.5
Tetrachloroethene
µ /L
0.7
1.4
6.7
8.2
6.2
1.5
4.2
4.9
1 4.2
4.9
4.4
1 5.8
6.0
6.9
1 6.1
Toluene
/L
600
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.54 J
Trichloroethene
/L
3
3.1
3.8
2.6
4.9
6.4
4.4
4.4
3.1
3.9
5.8
5.3
5
Trichlorofluoromethane
/L
1 2,000
-
-
-
-
-
-
-
-
-
0.5
-
Turbidi
-
-
-
-
Vinyl Chloride
"gg/L
0.03
1.6 J
0.66 J
1.8
X lene (m & )
500
-
-
-
X lene o500
-
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-B
Historical Groundwater Monitoring Data (DDW-01A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/18/2008 9/17/2008 4/7/2009 9/9/2009 3/10/2010 9/23/2010 3/29/2011 9/21/2011 3/20/2012 9/26/2012 3/6/2013 9/10/2013 3/26/2014 9/23/2014 3/6/2015
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
1.6
4.6
4.9J
6.3
5.1
6.0
5.4
3.3J
2.5J
2.3J
2.OJ
2AJ
7.1
0.63J
1.7
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
-
-
0.17J
0.36J
-
-
1,2-dichloro ro ane
/L
0.6
0.56J
0.52J
0.591
0.54J
0.70
-
0.50J
0.35J
0.42J
0.84J
-
1,4-dichlorobenzene
/L
6
-
-
-
-
-
-
-
-
-
0.68J
-
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
2-Hexanone MBK
/L
-
-
-
-
-
-
-
-
-
-
-
0.67J
Acetone
/L
6,000
-
-
-
1.2J
-
14AJ
-
-
-
19.7J
-
-
Barium
/L
700
52.0
85.0
91.0
89.01
80.OJ
80.0
438
56.3J
51.3J
44.6J
46.1J
79.8J
79.2
59.1J
52.3
Benzene
/L
1
0.55
-
-
-
0AIJ
0.76J
0.29J
-
-
-
0.32J
-
-
Carbon Disulfide
/L
700
-
-
-
-
-
-
3.2
4.3J
2.7J
2.5J
3.1 J
4AJ
-
3.OJ
Chloride
/L
250,000
-
-
14,000
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
0.86J
3.1
3.5
3.2
3.9
4.3
3.0
1.91
1.01
1.2J
1.2J
1.3J
6.1
0.55J
1.1
Chloromethane
/L
3
-
-
-
-
-
-
-
-
-
0.191
-
-
-
-
-
Chromium III+VI
/L
10
-
-
0.7J
0.91
-
5.2
45.2
-
-
-
-
-
-
-
cis- l,2-dichloroethene
/L
70
2.8
9.4
11.0
14.0
12.0
14.0
11.5
7.8
5.6
5.5
4.8J
6.7
20.6
2.2J
4.9
COD
/L
-
-
-
37,000
-
-
-
-
-
-
-
-
-
-
-
-
Dichlorodifluoromethane
/L
1,000
-
-
-
-
-
-
-
-
-
-
-
-
Ethanol
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
µS/cm
-
-
-
-
526
528
504
509
601
466
531
497
488
Iron
/L
300
-
-
230 - 350J
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
-
1.5
-
0.12
-
-
-
-
-
-
-
-
-
Man anew
/L
50
-
-
28.OJ
-
-
-
-
-
-
-
-
-
7.3
Nitrate as NO3-
/L
10,000
-
-
400
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
-
-
-
-
-
6.7
6.7
6.6
6.7
7.1
6.6
6.9
6.6
Selenium
/L
20
1 -
I-
-
-1
0.8J
-
-
-
-
-
-
-
-
Sul hate
/L
250,000
-
-
150,000
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
0.75J
4.4
4.5
5.5
4.9
3.0
1 2.0
1.7
1.6
1.4
5.7
0.55J
Temperature
°C
-
-
-
-
-
16.1
17.7
17.7
16.5
16.3
16.9
16.9
16.8
Tetrachloroethene
/L
0.7
4.6
3.5
2.1
-
-
0.49J
0.55J
0.61J
0.501
6.7
-
Trichlorofluoromethane
/L
2,000
-
-
-
-
-
0.23J
-
-
0.21J
-
-
-
-
Turbidi
NTU
I -
-
-
-
26.0
34.0
8.0
6.0
1.0
2.0
3.5
Vinyl Chloride
/L
0.03
-
0.72J
1.1J
r 1.5
0.98J
-
-
-
X lene (m & )
/L
500
-
2.0
-
-
-
-
-
-
-
1.1J
X lene o
/L
500
-
1.0
-
-
i
0.56J
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-B
Historical Groundwater Monitoring Data (DDW-01A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date
9/22/2015
3/24/2016 9/27/2016 3/27/2017 9/26/2017 3/30/2018 9/28/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022
10/7/2022
3/28/2023
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
2.8
1.9
5.4
3.4
4.8
4.2
2.1
5.0
6.1
4.7
5.4
4.5
5.6
7.7
6.3
4.3
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,2-dichloro ro ane
/L
0.6
-
-
-
-
-
-
-
1.3
.0
1,4-dichlorobenzene
/L
6
-
-
-
-
-
-
-
-
-
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
4.7
2-Hexanone MBK
/L
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
-
-
-
-
-
-
-
-
13.3 J
Barium
/L
700
45.4
55.8
72.9
64.0
67.5
72.2
69.4
67.5
66.5
63.6
64.2
65.1
83.5
34.1
-
60.8
Benzene
/L
1
-
-
-
-
-
3.1
8.7
6.2
4.6
5.3
5.5
2.7
-
1.5
2.0
Carbon Disulfide
/L
700
6.6
2.0
9.0
-
4.4
-
4.2
-
15.0
-
-
-
-
-
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
1.9
1.3
3.6
1.6
3.7
3.3
1.0
3.4
4.1
3.2
3.3
3.3
4.9
4.2
2.8
Chloromethane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
/L
70
10.1
5.7
15.4
4.8
15.5
14.4
4.4
17.1
25.2
17.7
18.4
15.2
19.2
26.4
1 21.6
13.9
COD
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Dichlorodifluoromethane
/L
1,000
-
-
-
-
1.11
Ethanol
/L
-
-
-
-
-
323
Specific Conductance
µS/cm
-
495
500
433
301
428
430
404
427
437
410
422
414
461
480
494
1,010
Iron
/L
300
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
-
-
Manganese
/L
50
-
-
-
-
-
Nitrate as NO3-
/L
10,000
-
-
-
-
-
H
SU
-
6.7
6.7
7.0
10.6
6.9
7.0
8.4
6.7
6.9
6.9
6.5
6.8
6.8
6.6
6.7
6.9
Selenium
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
2.0
.1
1.4
4.1
4.6
4.4
5.9
4.2
4.7
4.4
4.5
7.4
Temperature
°C
-
16.9
16.4
20.7
17.5
20.8
17.9
22.5
16.1
19.4
16.5
19.8
19.2
19.5
19.4
19.7
Tetrachloroethene
/L
0.7
-
-
1.7
1.0
1.0
0.71 J
Trichlorofluoromethane
/L
2,000
-
-
-
-
-
-
Turbidi
NTU
-
2.5
-
-
-
-
-
-
-
Vinyl Chloride
/L
0.03
2.6
3.4
1.3
1.4
1.2
1.7J
1.0
1.5
2.0
2.4
1.7
1.5
X lene (m & )
/L
500
-
-
X lene o
/L
500
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-C
Historical Groundwater Monitoring Data (DDW-02)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/18/2008 9/17/2008 4/8/2009 9/10/2009 3/10/2010 9/23/2010 3/29/2011 9/20/2011 3/21/2012 9/26/2012 3/5/2013 9/10/2013 3/26/2014 9/23/2014 3/11/2015
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
35.0
41.0
54.0
46.0
50.0
2.4
16.7
2.2J
5.3
4.0J
27.1
22.1
7.1
6.5
3.9
1,1-dichloroethene
/L
350
0.60J
0.66J
1.0
-
0.911
-
-
-
-
-
-
-
-
1,2-dichlorobenzene
/L
20
-
0.59
-
0.35J
0.901
1,2-dichloroethane
/L
0.4
-
0.54J
-
0.31J
0.181
-
0.37J
0.18J
1,4-dichlorobenzene
/L
6
0.60J
0.55J
1.0
0.72J
1.1
1.1
0.45J
0.93J
0.35J
1.6
1,4-dioxane
/L
3
-
-
-
-
Arsenic
/L
10
-
-
-
-
1.4
-
-
-
-
Barium
/L
700
65.0
76.0
100
84J
120
150
88J
84.9J
73.3J
121
106
87.7
89AJ
87.4
Benzene
/L
1
1.1
1.4
2.1
1.1
2.0
-
1.0
-
-
-
Cadmium
/L
2
-
-
-
-
1.7
-
Chloride
/L
250,000
54,000
-
-
Chlorobenzene
/L
50
-
0.76J
0.80
0.86J
1.2J
Chloromethane
/L
3
-
-
0.44J
0.28J
Chromium (111+VI)
/L
10
-
0.5J
0.81
0.6J
13.0
5.8
-
-
cis- l,2-dichloroethene
/L
70
3.6
4.2
6.3
5.7
6.8
1.4
2.3
1.3J
0.86J
0.69J
4.7J
3.2J
1.4
1.2J
COD
L
-
-
-
32,000J
-
-
-
--
Diisopropyl ether
/L
70
-
Specific ConductancePS/cm
-
485
512
508
473
663
485
679
541
Iron
/L
300
60J
-
-
-
-
-
-
-
-
-
Lead
/L
15
1.7J
1.4J
1.7
-
Manganese
µ /L
50
-
-
-
-
-
-
-
-
136
Mercury
µ /L
1
0.27
0.24
7.2
0.52
0.21
-
0.12J
0.37
0.14J
0.14J
0.16J
-
H
SU
-
-
-
-
-
6.4
6.2
6.1
6.0
6.1
6.0
6.2
6.1
Selenium
µ /L
20
-
4.1J
5.3
-
-
-
-
-
-
-
-
Sul hate
µ /L
250,000
4,400
-
-
Trichloroethene
µ /L
3
IAJ
1.4J
1.7J
1.3J
1.7J
-
-
-
-
1.0
0.56J
-
-
Tem
°C
-
-
-
-
-
-
16.9
18.3
17.9
17.5
16.7
17.6
17
17.4
Tetrachloroethene
µ /L
0.7
1.4
1.2
1.4
1.1
1.3
0.46J
-
-
-
1.2
0.63J
-
-
Trichlorofluoromethane
/L
2,000
-
1.0J
-
-
-
-
-
-
0.33J
0.21J
-
-
Turbidit
NTU
-
i -
-
-
-
-
65.0
29.0
2.0
8.0
1.0
5.0
5.0
Vinyl chloride
/L
0.03
0.53J
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-C
Historical Groundwater Monitoring Data (DDW-02)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/22/2015 3/22/2016 9/27/2016 3/27/2017 9/26/2017 3/30/2018 9/28/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
3.7
1.6
11.4
10.0
8.4
8.2
9.9
8.6
9.8
8.4
6.8
4.7
6.5
9.2
6.6
8.9
1,1-dichloroethene
/L
350
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,2-dichlorobenzene
/L
20
1.2
1.0
1.3
1.1
1.5
1.0
1.6
1.2
2.0
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,4-dichlorobenzene
/L
6
1.5
2.2
1.7
2.1
2.5
2.3
2.1
2.8
2.31
3.6
2.6
-
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
30.2
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
86.1
83.8
161
194
173
208
218
259
218
277
251
324
265
177
-
336
Benzene
/L
1
-
-
-
-
-
-
-
-
-
5.2
-
-
1.3
-
0.51 J
-
Cadmium
/L
2
2.0
2.5
2.9
1.5
1.9
1.4
1.8
-
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
1.3
1.7
1.6
2.0
2.1
2.3
2.5
2.4
3.3
2.8
4.4
3.3
5.7
Chloromethane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
Chromium (III+VI)
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
2.0
cis-1,2-dichloroethene
/L
70
3.1
2.9
2.6
2.6
2.9
2.5
3.2
2.5
2.0
1.3
1.9
2.2
1.6
2.3
COD
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Diisopropyl ether
/L
70
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.25 J
Specific Conductance
S/cm
-
604
732
784
800
804
846
905
995
891
1,015
919
1,055
887
1,041
894
1,279
Iron
µ /L
300
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
Manganese
µ /L
50
-
-
-
-
-
-
-
-
Mercu
µ /L
1
-
-
-
-
0.42
0.63
1.2
2.3
-
0.55
0.24
0.22
0.61
-
H
SU
-
6.1
6.4
6.2
6.0
6.1
6.2
5.9
6.0
6.1
6.0
6.0
5.9
6.0
5.9
5.7
6.0
Selenium
µ /L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
µ /L
250,000
Trichloroethene
µ /L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
Tem
°C
-
17.5
16.8
21.7
18.1
22.1
19.3
22.8
16.8
19.4
17.1
20.3
18.3
20.8
17.6
18.1
20.6
Tetrachloroethene
µ /L
0.7
-
Trichlorofluoromethane
µ /L
2,000
Turbidity
NTU
-
2.5
Vinyl chloride
/L
0.03
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-D
Historical Groundwater Monitoring Data (DDW-03)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/19/2008
9/17/2008
4/l/2009
9/10/2009
3/10/2010
3/29/2011
9/20/2011
3/21/2012
9/25/2012
3/5/2013
9/10/2013
3/26/2014
9/24/2014
3/5/2015
9/23/2015
3/22/2016
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
9.6
11.0
10.0
12.0
9.4
10.6
9.5
4.1J
4AJ
7.8
7.4
3.1
2.7J
2.4
2.9
1.2
1,2-dichlorobenzene
/L
20
0.69J
0.981
1.2
0.73J
0.97J
1.0
-
0.34J
1.IJ
032J
-
0.31J
-
-
-
1,2-dichloroethane
L
0.4
1.2
1.2
1.3
1.3
1.1
1.3
0.30J
0.8J
0.65
0.95J
1.1
0.7J
0.64J
1,2-dichloro ro ane
/L
0.6
3.1
2.5
3.3
2.8
2.8
1.6
1.5
2.6
2.3
1.3
1.2
-
1,4-dichlorobenzene
/L
6
6.0
6
7.
6.3
6.4
6.8
0.36J
2.8
2.5
3.6
2.5
2.6
2.3
2.5
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
18
2.7J
TIJ
Arsenic
/L
10
3.2J
-
-
1.2J
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
300
310
310
330
300
376
384
378
349
386
366
369
371
394
410
367
Benzene
L
1
0.54
0.62
0.55
0.59J
0.51J
0.50J
-
-
-
0.46J
-
-
-
-
-
-
Cadmium
/L
2
-
-
-
2.0
Chloride
/L
250,000
-
-
240,000
-
-
-
-
-
-
-
Chlorobenzene
/L
50
3.1
3.6
3.3
2.9J
3.5
3.8
IAJ
1.3J
4.3
2.1J
1.3
1.3J
1.1
1.3
Chromium III+VI
/L
10
-
-
0.7J
1.1J
-
-
-
-
-
-
-
6.9J
-
-
-
cis- l,2-dichloroethene
/L
70
41.0
47.0
46.0
53.0
42.0
46.7
1.4J
19.5
19.1
32.8
33.5
14.7
13.8
11.9
14.5
6.4
COD
/L
-
-
92,000
-
-
-
-
-
-
-
-
-
-
-
-
Diisopropyl ether
/L
70
-
-
-
-
-
-
-
-
-
-
-
Specific ConductancePS/cm
1,366
1,387
1,470
1,550
1,470
1,580
1,530
1,564
1,563
1,453
Lead
/L
15
3.6J
-
-
-
-
-
-
-
-
-
-
Merc
/L
1
0.03J
0.16J
-
0.12J
-
O.1J
-
-
-
-
H
SU
6.0
6.1
6.0
5.9
6.0
5.9
6.2
6.0
6.1
6.1
Selenium
L
20
-
-
-
-
-
-
-
-
14.8
-
-
Sul hate
/L
250,000
8,600
-
-
Trichloroethene
/L
3
8.6
1
9.4
9.2
6.8
-
-
2.5
7.5
4.5
2.3
2.6
1.7
1.6
-
Temp
°C
-
-
-
-
-
16.2
17.8
17.3
17.1
16.1
17
14.5
17
-
17
16.7
Tetrachloroethene
/L
0.7
3.4
3.4
2.9
3.1
3.0
-
2.8
1.1
0.56J
trans-1,2-dichloroethene
/L
1 100
1.6J
1.6J
1.7J
1.91
1.5J
1.6
1.2J
0.78J
Trichlorofluoromethane
/L
1 2,000
0.40J
-
-
-
TurbidityNTU
-
-
-
-
-
56
33
5
6
1
2
1 2
1
9.5
Vin l chloride
/L
1 0.03
8.6
8.1
9.0
1 6.0
6.9
0.89J
0.911
3.8
1.6
0.73J
I 0.73J
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-D
Historical Groundwater Monitoring Data (DDW-03)
Former York Road Landfill
Charlotte, North Carolina
Sample Date
9/27/2016
F 3/27/2017
9/26/2017
3/30/2018
9/28/2018
4/5/2019
9/20/2019
3/31/2020
9/29/2020
3/25/2021
9/28/2021
3/30/2022
10/5/2022
3/28/2023
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
5.3
3.8
4.3
3.4 - 3.5
4.2
3.7
4.5
3.5
3.7
3.1 - 3.3
3.0
3.6 - 4.0
3.7 - 4.0
2.8 - 4.7
1,2-dichlorobenzene
/L
20
1.2
-
-
-
-
-
-
-
-
-
1.3 - 1.6
1.5 - 1.6
0.89 J - 1.4
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
0.45 J
1,2-dichloro ro ane
/L
0.6
1.9
1.7
2.3 - 2.5
1.6
1.8
7
1.9
1.4 - 1.5
1.7
1.7 - 2.3
2.1 - 2.3
1.6 - 2.5
1,4-dichlorobenzene
/L
6
5.9
4.6
2.7
4.1
2.6
2.6
-
2.5
1.9 - 2.0
2.3
6.6 - 7.2
7.1 - 8.1
4.4
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
81.3 - 81.4
Acetone
/L
6,000
11.0 J
14.2 J
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
Barium
L
700
415
438
373
417 - 418
424
417
407
420
447
421 - 423
418
398 - 410
423 - 432
Benzene
/L
1
-
-
-
1.4-1.6
1.4
1.5
-
-
-
1.4
0.37 J - 0.45 J
0.51 J - 0.53 J
Cadmium
/L
2
-
-
2.2
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
4.0
3.5
3.2
2.3 - 2.4
3.6
2.5
3.1
2.8
2.5-2.6
2.9
5.4 - 6.3
6.4 - 7.0
4.7 - 7
Chromium III+VI
/L
10
-
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
70
28.6
21.0
21.8
17.1 - 18.9
21.8
17.3
25.6
17.5
17.0
14.4 - 14.9
14.9
19.7 - 22.2
21.1 - 22.1
14.6 - 25.5
COD
L
-
-
-
-
-
-
-
-
Diisopropyl ether
/L
70
-
-
-
-
-
-
-
-
-
-
-
-
-
0.37 J - 0.53 J
Specific ConductanceAS/cm
-
1,588
1,579
1,544
1,495
1,615
1,555
1,625
1,564
1,613
1,623
1,611
1,550
1,446
2,236
Lead
L
15
-
-
7.9
-
-
-
-
-
-
-
-
-
-
-
Merc
1
-
-
-
-
-
-
0.51
-
-
-
-
-
-
H
SU
6.2
6.1
6.2
6.5
6.2
6.1
6.2
6.2
6.1
6.1
6.2
6.1
5.8
6.4
Selenium
L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
/L
250,000
Trichloroethene
/L
3
3.1
2.7
2.5
3.1
2.9
2.3
1.7- 1.9
1.9
2.8 - 3.4
3.3 - 3.5
2.7 - 3.4
Temp
°C
-
20.6
17.2
20.9
17.1
21.4
16.2
18.7
16.3
20.3
17.4
19.4
16.3
17.7
18.8
Tetrachloroethene
/L
0.7
1.0
-
-
-
-
-
-
-
-
0.47 J - 0.59 J
trans-1,2-dichloroethene
/L
100
0.56 J - 0.65 J
Trichlorofluoromethane
/L
2,000
Turbidity
NTU
-
-
Vin 1 chloride
0.03
1 3.0
1 2.2
1
2.9
3.0
2.4 - 2.4
2.5 - 2.8
1 2.6-2.9
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR23OO86 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-E
Historical Groundwater Monitoring Data (DDW-03A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/26/2008 1 9/17/2008 1 4/l/2009 1 9/10/2009 1 3/10/2010 1 3/29/2011 1 9/20/2011 1 3/21/2012 1 9/25/2012 1 3/6/2013 1 9/10/2013 1 3/26/2014 1 9/23/2014 1 3/11/2015 1 9/23/2015 1 3/22/2016
Constituent
Units
NC 2L
1,1-dichloroethane
6
0.40J
0.42J
-
-
Acetone
6,000
1,300
1,100
12.0
Arsenic
10
2.4.1
2.5J
-
-
-
Barium
700
53.0
52.0
40.0
49J
39J
42.6
34.4.1
41.3J
32.7J
33.3J
31.4J
32.1
31.1J
30.8
40.9
41.9
Benzene
1
-
-
Cadmium
2
Carbon disulfide
700
Chloride
250,000
8,000
Chloromethane
3
-
0.62J
Chromium III+VI
10
0.81
0.7J
I.I.I
11.8
-
5.2J
cis-1,2-dichloroethene
70
0.96J
1.8
1.1
1.01
23J
3.0
3.7J
2.1J
1.3J
1.91
2.1J
1.6
2.0
1.4
1.7
1.3
COD
-
-
-
59,000
-
-
-
-
-
-
-
-
-
-
-
Specific ConductancePS/cm
1,056
1,053
1,010
1,020
1,220
922
1,150
987
1,087
1,079
Iron
L
300
110J
-
-
-
-
-
-
54.1
Lead
15
2.7.1
1.4J
Manganese
50
16
Mercury
L
1
0.011
-
-
0.191
-
-
-
-
-
-
H
SU
7.2
6.5
8.1
8.1
8.2
8.2
7.8
7.2
8.0
8.1
Selenium
20
5.3J
-
6.5.1
-
-
-
-
-
23.4
-
-
Sul hate
L
250,000
510,000
-
-
-
Trichloroethene
/L
3
0.82J
0.86.1
0.60J
0.76J
0.67.1
0.51J
Temp
°C
-
15.9
18.0
18.3
17.8
14.5
19.7
16.0
16.8
17.6
17.2
Turbidity
NTU
-
82.0
73.0
59.0
29.0
6.0
12.0
41
20.6
X lene m &
L
0.91J
-
X lene o
L
0.42J
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-E
Historical Groundwater Monitoring Data (DDW-03A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/27/2016 1 3/27/2017 1 9/26/2017 1 3/30/2018 1 9/28/2018 1 4/5/2019 1 9/20/2019 1 3/31/2020 1 9/29/2020 1 3/25/2021 1 9/28/2021 1 3/30/2022 1 10/5/2022 1 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
6
-
Acetone
6,000
31.8
42.7
37.7
27.9
Arsenic
L
10
-
Barium
700
31.7
41.9
33.9
39.5
37.0
36.6
33.2
35.1
33.9
33.0
31.8
30.1
29.8
Benzene
1
1.1
2.0
3.8
4.2
3.
4.0
5.1
Cadmium
2
-
-
-
1.2
Carbon disulfide
700
3.9
8.9
3.5
-
Chloride
L
250,000
-
-
-
Chloromethane
/L
3
Chromium III+VI
10
cis-1,2-dichloroethene
70
1.0
0.32 J
COD
-
-
-
-
-
-
-
Specific ConductancePS/cm
1,081
1,074
-
1,055
1,003
1,009
1,019
991
975
968
965
903
793
1,549
Iron
L
300
-
176
-
-
-
-
-
-
-
-
Lead
15
6.5
-
Man anew
L
50
Mercury
L
1
-
-
-
-
-
-
-
-
-
-
-
H
SU
7.4
7.2
7.5
7.6
7.7
8.0
7.8
7.7
7.7
7.8
7.8
7.99
7.91
Selenium
L
20
-
-
-
-
-
-
-
-
-
-
-
Sul hate
/L
250,000
-
Trichloroethene
L
3
-
Tem
°C
20.4
16.6
18.5
21.6
15.6
19.6
15.9
19.9
17.0
19.6
16.4
17.1
18.8
Turbidity
NTU
-
X lene m &
L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
X lene o
L
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected
4. NC 2L was obtained from NCDEQ Solid Waste
Section(https:Hdeq.nc.gov/abouUdivisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-F
Historical Groundwater Monitoring Data (DMW-01)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/18/2008 9/16/2008 9/18/2008 4/6/2009 1 9/9/2009 1 3/11/2010 9/23/2010 3/31/2011 9/20/2011 3/19/2012 9/24/2012 3/4/2013 9/9/2013 3/25/2014 9/22/2014 3/6/2015
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
1.0
1.2
-
1.7J
1.6J
0.88J
1.0
0.85J
1.3J
0.94J
0.84J
1.1J
1.4J
1.1
1.11
-
1,2-dichlorobenzene
/L
20
8.6
10
7.0
9.0
10
5.8
4.9
5.0
5.3
5.4
6.1
5.6
5.2
5.3
4.0
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
0.18J
-
0.13J
-
-
0.191
-
-
1,2-dichloro ro ane
/L
0.6
3.0
3.6
3.6
3.1
3.0
3.0
3.1
3.3
3.1
3
3.2
2.8
1,4-dichlorobenzene
/L
6
23
26
21
17.1
16.1
17.0
17.6
19.3
18.6
18.1
21.3
17.0
Acetone
/L
6,000
280
1511
41J
6.2J
760L
4.6J
2.9J
-
-
Arsenic
/L
10
3.5J
3.1J
2.1J
-
-
0.82J
2.7J
8.01
6.2J
7.01
-
5.5J
6.9J
-
Barium
/L
700
140
160
170
120
110
120
160
182
178
173
156
138
139
125
144
Benzene
/L
1
1.8
1.7
-
1.7
0.98J
1.1
0.77J
1.8
1.7
1.3
.5
1.5
1.3
0.911
1.1
Cadmium
/L
2
-
1.3
1.0
0.6J
0.48J
2.2
-
1.8
-
1.4
2.3
2.4
L 12.5
Carbon disulfide
/L
700
-
-
-
1.3J
-
Chloride
/L
250,000
24,000
-
-
-
-
-
Chlorobenzene
/L
50
2.8
3.2
1.0
2.1
3.1
2.8
2
2J
2.1J
2J
2.3J
2.4J
2.3
3.2
2.4
Chromium III+VI
/L
10
-
-
-
-
-
6.4
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
/L
70
60
75
35
78
54
60
49.3
45.9
40.3
42.7
38.1
43.7
38.8
39.6
34.0
COD
/L
-
-
53,000
-
-
-
-
-
-
-
-
Field Specific Conductance
S/cm
-
-
-
-
-
-
-
551
707
590
442
621
529
648
575
-
Iron
/L
300
40,000
36,000
21,000 - 40,000
45,000
28,000
20,000
27,700
32,700
29,800
28,400
26,800
29,100
29,300
39,400
47,400
Lead
/L
15
-
-
-
-
-
0.801
-
5.7J
5.9J
-
-
-
-
-
6.3
Manganese
/L
50
11,000
48,000
9,700
10,000
1 8,700
18,000
21,800
21,500
19,000
16,200
15,900
13,500
13,400
22,200
22,600
Mercury
/L
1
-
-
-
-
-
-
0.31
-
-
-
-
-
-
-
-
Meth 1 ethyl ketone
/L
4,000
-
-
Nitrate as NO3-
/L
10,000
400
-
-
-
-
-
-
-
-
H Field
pH -Units
-
6.0
6.1
5.9
6.1
1 6.2
6.0
6.0
5.7
Selenium
/L
20
7.0J
0.83J
-
-
-
-
-
-
Silver
/L
20
0.3J
1.1J
2.3J
Sulphate
/L
250,000
4100J
-
-
-
Trichloroethene
/L
3
0.98J
I 0.59J
3.4
1.SJ
2.3
1.7
1.7
0.87J
1
1.2
0.91
0.56J
Temp
oC
-
-
17.3
19.4
20.9
19
17.2
20
16.7
19.6
Tetrachloroethene
/L
0.7
0.68J
-
-
0.47J
-
-
-
-
-
Toluene
/L
600
-
-
-
-
-
trans- l,2-dichloroethene
/L
100
1.6J
1.6.1
0.68J
1.5J
1.1.1
1.6
1.1
1.01
0.74J
0.79J
0.83J
0.87J
0.69.1
0.85.1
Turbidity
NTU
-
-
-
-
-
-
-
36
63
4
3
4
13
12
Vinyl chloride
/L
0.03
6.8
7.1
8
5.3
5.4
2.6
3.8
2.5
2.5
2.0
2.5
4.1
X lene m &
/L
2
X lene o
/L
1
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-F
Historical Groundwater Monitoring Data (DMW-01)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/21/2015 3/24/2016 9/28/2016 3/27/2017 9/26/2017 3/30/2018 9/27/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
1.2 - 1.3
1.6
2.2
1.6
1.1
-
-
-
-
-
-
-
-
-
-
-
1,2-dichlorobenzene
/L
20
5.0 - 5.1
3.6
1.8
-
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
1,2-dichloro ro ane
/L
0.6
2.7 - 2.9
2.5
2.2
1.2
1.9
1.5
0.51 J
1,4-dichlorobenzene
/L
6
17.7 - 18.5
7.0
4.0
3.1
-
1.5
2.6
10
-
-
-
Acetone
/L
6,000
-
103
138
-
-
115
144
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
136 - 137
111
142
144
105
91.3
104
93.8
189
70.9
198
60.4
133 - 148
52.5
-
71.5
Benzene
/L
1
1.5
-
-
-
-
-
73.6
-
14.3
-
-
-
2.8 - 3.3
-
1.2
-
Cadmium
/L
2
3.0 - 3.9
1.1
35.1
8.3
26.2
27.2
62.7
23.2
11.2
10.0
20.1 - 23.6
20.2
5.3
44.5
Carbon disulfide
/L
700
Chloride
/L
250,000
Chlorobenzene
/L
50
2.5
2.7
1.7
-
Chromium III+VI
/L
10
-
5.6
5.6
-
-
-
-
-
-
-
-
2.0
cis-1,2-dichloroethene
/L
70
30.2 - 31.1
23
29.6
21.0
18.0
2.1
5.5
1.1
12.9
13.4
8.0 - 8.7
3.9
2.2
COD
/L
-
-
-
-
Field Specific Conductance
S/cm
-
659
478
602
475
395
318
215
54.1
188
103
469
69.5
230
91.0
139.9
767
Iron
/L
300
38,900 - 39,000
17,100
20,700
-
23,600
-
11,200
14,400
-
55,400
-
28,400 - 30,300
4,680
16,900
16,100
Lead
/L
15
-
-
-
-
-
-
-
-
-
-
Man anew
/L
50
16,300 - 17,800
22,600
23,100
11,100
1,550
4,310
119400
4,380 - 4,770
804
19220
665
Mercury
/L
1
-
-
-
-
-
-
-
-
-
Meth 1 ethyl ketone
/L
4,000
5.2
Nitrate as NO3-
/L
10,000
-
-
-
-
-
-
-
-
-
-
-
-
-
H Field
H Units
6.1
6.1
1 6.1
5.8
6.0
6.5
5.7
4.8
5.7
6.2
5.7
5.8
5.7
5.6
5.3
5.8
Selenium
/L
20
-
Silver
/L
20
Sulphate
/L
250,000
Trichloroethene
/L
3
-
3.8
Temp
oC
-
19.2
18.1
22.6
18.7
21.2
19.0
22.3
15.2
18.7
17.9
20.2
17.3
19.8
16.1
17.4
18.2
Tetrachloroethene
/L
0.7
-
-
-
-
-
-
-
-
-
Toluene
/L
600
1.0
trans-1,2-dichloroethene
/L
100
-
Turbidi
NTU
-
6.0
-
Vinyl chloride
/L
0.03
1.9 - 2.1
2.8
3.2
2.3
1 2.6
1.2
1.1
2.3
3.2
1.4
0.93 J
X lene m &
L
-
X lene o
/L
I -
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 21, Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.ne.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-G
Historical Groundwater Monitoring Data (DMW-02)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/20/2008 9/16/2008 3/31/2009 9/10/2009 3/11/2010 3/30/2011 9/19/2011 3/19/2012 9/24/2012 3/4/2013 9/9/2013 1 3/25/2014 1 9/22/2014 1 3/6/2015 1 9/21/2015 1 3/23/2016
Constituent
Units
NC 2L
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
6,000
33
24
5.9JL
Arsenic
10
2.8J
3.1J
-
2.9J
-
-
-
-
-
-
Barium
700
32
57
25
47J
69J
27.9
25.2J
46.1 J
32.8 - 34.7J
46.3J
29.6J
23.3
19.2J
30.8
22.3
36.9
Cadmium
2
-
-
-
-
-
-
-
-
-
-
-
Chloride
/L
250,000
6,100
-
-
-
-
-
-
-
-
Chloromethane
/L
3
-
0.13J
Chromium (III+VI)
10
I AJ
0.6J
2.OJ
1.07
cis-1,2-dichloroethene
70
COD
-
17,000J
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
1,254
1,390
1,210
918
1,250
1,320
1,310
1,170
-
1,216
1,249
Iron
WL
300
1,100
7,000
50-1,300J
4,300 - 4,400
8,500
1,850
885
4,800
2,390 - 2,710
4,750
2,090
1,530
2,300
2,540
727
2,990
Lead
L
15
11
5.9
-
3.8 - 4.1 J
7.0J
-
-
5.6J
-
-
-
-
-
-
-
-
Man anew
50
69
160
57
110 -120
170
63
52
108
73 - 76
110
66
60
70
72
49
75
Methyl Ethyl Ketone
L
4,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.9
7.6
7.1
7.5
6.9
7.4
7.5
7.3
7.2
7.6
Selenium
20
4.5J
-
7.9J
-
-
-
-
-
-
32.8
-
-
Sul hate
250,000
670,000
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
I
-
17.0
20.0
19.9
20.1
17.1
20.5
17.2
19.5
19.4
17.9
Toluene
µg/L
NTU
1
-
-
-
Turbidi
-
-
-
13.0
245
158
77.0
39.0
109
100
81.6
1 -
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-G
Historical Groundwater Monitoring Data (DMW-02)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/28/2016 1 3/27/2017 1 9/26/2017 1 3/30/2018 1 9/27/2018 1 4/5/2019 1 9/20/2019 1 3/31/2020 1 9/29/2020 1 3/25/2021 1 9/28/2021 1 3/30/2022 1 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
0.38 J
Acetone
6,000
-
-
-
Arsenic
10
-
-
-
-
-
-
-
-
-
-
-
Barium
700
18.5
18.2
11.9
17.4
167
32.1
28.1
40.4
55.9
44.5
8.8
19.0
26.1
Cadmium
2
-
-
-
-
-
-
-
-
-
-
3.0
-
-
Chloride
250,000
Chloromethane
3
Chromium III+VI)
10
cis-1,2-dichloroethene
L
70
1.8
1.8
COD
L
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
1,257
1,273
1,241
1,237
948
1,165
596
1,073
801
1,068
166
287
111
920
Iron
L
300
-
141
-
1,550 -1,630
-
4,920
-
2,210
-
6,190
2,910
5,910
3,840
Lead
L
15
-
-
-
-
-
-
-
-
-
Man anew
L
50
39
37
3,380
1,210
464
748
789
2,520
2,950
Methyl Ethyl Ketone
L
4,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
7.3
7.4
7.5
7.2
6.8
7.4
6.6
7.3
6.6
7.3
6.8
7.1
6.6
7.4
Selenium
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
250,000
-
-
-
-
-
-
-
-
-
-
-
-
Tem
°C
-
23.6
19.7
24.3
20.1
24.3
18.4
22.7
17.6
24.1
19.3
23.5
16.0
18.5
20.8
Toluene
µg/L
NTU
1
0.78 J
Turbidity
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detecte
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-H
Historical Groundwater Monitoring Data (DMW-02A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/19/2008 9/16/2008 4/3/2009 9/11/2009 3/11/2010 3/30/2011 9/19/2011 3/22/2012 9/27/2012 3/5/2013 9/11/2013 3/25/2014 9/22/2014 3/12/2015 9/22/2015
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
-
-
-
-
-
2.0
-
1.6J
-
-
-
-
-
-
-
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
1,4-dichlorobenzene
/L
6
-
-
-
-
-
0.56J
-
0.56J
-
-
-
-
-
-
Methyl Ethyl Ketone
/L
1 4000
6.0
8.9
3.8J
3.7J
5.1J
-
-
8.7J
5AJ
7.5J
4.8J
6AJ
8.1
2-hexanone MBK
/L
-
4.2
3.3
-
-
-
-
-
-
0.48J
2.91
-
-
5.9
Acetone
/L
6 000
6,700
6,800
4,100
5,4001
-
4,000
-
1,430
471
318
115
131
112
120
Arsenic
/L
10
4.7J
3.1J
-
2.5J
-
-
-
-
-
5.9J
-
-
-
-
Barium
/L
700
130
160
330
420
576
72.2J
1,020
1,130
1,180
Benzene
/L
1
-
-
-
-
-
0.41J
-
0.45J
-
-
-
-
-
-
-
Bromomethane
/L
-
-
-
-
-
-
-
-
-
-
-
Cadmium
/L
2
-
-
-
-
-
-
-
-
Chloride
/L
250,000
-
4,000
-
-
-
-
-
-
-
Chlorobenzene
/L
50
-
-
-
-
0.76J
0.73J
-
-
-
Chloromethane
/L
3
-
-
-
-
-
0.44J
-
0.54J
-
-
-
-
-
Chromium III+VI
/L
10
11
9.3
8.9J
6.7J
7.5
9.5J
5AJ
-
6.3J
6.OJ
7.0
9.91
6.2
5.9
cis-1,2-dichloroethene
/L
70
-
-
-
-
-
3.5
3.2J
-
-
-
-
-
-
COD
/L
-
-
210,000
-
-
-
-
-
-
-
-
Ethanol
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
8,150
8,350
8,240
7,040
7,370
7,360
7,710
6,750
7,146
Iron
/L
300
-
88J
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
2.6J
1.8J
-
1.3J
2.7J
-
5.0
-
-
-
12.1
15.2
Nitrate as NO3-
/L
10,000
2,400
-
-
-
-
-
-
-
-
-
-
H
SU
-
-
-
12.7
12.3
12.5
12.4
12.6
12.4
12.4
10.8
12.3
Selenium
/L
20
6.OJ
7.7J
-
11J
-
-
-
-
-
-
-
50.4
-
Silver
/L
20
-
-
13.5
-
12.4
16.1
-
17.1
Sulphate
/L
250,000
59,000J
-
-
-
-
-
-
Trichloroethene
/L
3
-
-
0.58J
-
0.811
-
-
-
-
-
-
Temp
°C
-
-
-
15.2
17.3
19.0
17.0
15.5
18.6
16.0
18.9
16.1
Tetrachloroethene
/L
0.7
-
-
0.95J
-
1.1
-
-
-
-
-
-
Toluene
/L
600
-
-
-
-
-
-
-
-
-
Turbidi
NTU
34
0
3
47
1
30.2
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-H
Historical Groundwater Monitoring Data (DMW-02A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/24/2016 9/28/2016 3/27/2017 9/26/2017 3/30/2018 9/27/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/7/2022 3/28/2023
Constituent
Units
NC 2L
1, 1 -dichloroethane
/L
6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
-
-
1,4-dichlorobenzene
/L
6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Meth 1 Ethyl Ketone
/L
1 4000
-
-
-
12.9
6.7
6.6
6.6
8.8
12.4
8.4
13.0
10.0
11.6
10.9
2-hexanone MBK
/L
I -
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
6 000
57.7
70.4
73.6
57.1
61.1
93.2
74.0
99.8
95.1
114
109
118
107
135
118
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
1,460
1,270
1,210
1,390
1,410
1,280
0
1,240
1,260
1,120
1,090
1,090
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
0.34 J
-
Bromomethane
/L
-
-
-
-I
-
-
-
10.7
Cadmium
/L
2
-
-
-
-
3.4
-
-
-
Chloride
/L
250,000
-
-
-
-
-
-
-
Chlorobenzene
/L
50
-
-
-
-
-
-
-
Chloromethane
/L
3
-
-
-
-
-
-
0.65 J
Chromium III+VI
/L
10
5.9
5.2
5.2
-
5.1
-
5.3
-
5.8
6.7
6.5
cis-1,2-dichloroethene
/L
70
-
-
-
-
-
-
-
-
-
-
COD
/L
-
-
-
-
-
-
-
-
Ethanol
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
111 J
Specific Conductance
S/cm
-
7,830
6,708
6,800
6,522
6,538
6,309
6,891
6,701
6,114
6,140
5,974
5,627
5,086
4,480
5,925
Iron
/L
300
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
5.7
-
-
6.2
-
-
-
-
-
-
614
187
Nitrate as NO3-
/L
10,000
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
12.5
12.4
12.4
12.4
12.5
12.0
12.3
12.3
12.4
11.9
12.3
12.2
12.9
12.37
-
Selenium
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Silver
/L
20
-
-
-
-
-
-
-
Sulphate
/L
250,000
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
16.5
21.9
16.8
23.0
18.1
22.2
17.7
19.0
16.0
21.8
17.5
23.1
14.3
21.4
18.8
Tetrachloroethene
/L
0.7
-
-
-
-
-
-
-
-
Toluene
/L
600
-
-
-
-
0.99 J
Turbidi
NTU
-
-
-
-
-
NC 21, - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 21, was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-I
Historical Groundwater Monitoring Data (DMW-O2B)
Former York Road Landfill
Charlotte, North Carolina
Sam le Date 3/19/2008 1 9/16/2008 1 4/3/2009 1 9/10/2009 1 3/11/2010 1 3/30/2011 1 9/22/2011 1 3/22/2012 1 9/27/2012 1 3/7/2013 1 9/11/2013 1 3/25/2014 1 9/25/2014 1 3/12/2015 1 9/22/2015 3/22/2016
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
1.9
1.8
LU
2.5J
1.7J
2.2
1.91
1.7J
1.91
0.94J
1AJ
1.8
1.4
1,2-dichlorobenzene
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,2-dichloroethane
L
0.4
1.4
1.3
1.3
4
1.1
0.99J
1.0
6J
0.76J
1,4-dichlorobenzene
/L
6
0.64J
0.63J
0.57J
0.72J
0.64J
0.581
0.50J
0.42J
0.59J
0.39J
0.65J
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2-hexanone MBK
/L
-
-
-
-
-
-
-
-
0.80J
-
-
-
-
-
-
-
-
Acetone
/L
6,000
33
56
4.1JL
2.7J
5.9J
1,760
Arsenic
/L
10
3.3J
2.3J
2.3J
4.7J
1.5J
Barium
/L
700
7.OJ
8.5J
7.3J
8.01
15.OJ
35.1
16.1J
12.8J
17AJ
I3.5J
10.9
51.0
13.5
1 10.5
30.0
Benzene
/L
1
0.52
0.53J
0.44J
0.50J
0.37J
0.25J
0.31J
Carbon disulfide
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chloride
/L
250,000
-
-
,29000
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
0.59J
0.65J
0.65J
0.801
0.71J
0.51J
0.92J
0.55J
0.32J
1.0J
Chromium III+VI
/L
10
0.7J
0.4
0.91
IAJ
13.3
6.5J
10.7
cis-1,2-dichloroethene
/L
70
2.1
2.5
2.0
3.0
2.6J
3.5
3.3J
1.5J
3.4J
3.8J
2.1
4.1J
2.6
5.9
4.7
COD
/L
-
-
-
,24000J
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
447
450
350
469
507
399
468
455
455
467
Iron
/L
300
-
-
120J
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/I,
15
2.0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
8.0
7.5
7.9
9.3
7.7
7.9
7.6
7.8
8.7
7.7
Selenium
/L
20
4.9J
4AJ
5.1J
Silver
/L
20
-
-
-
-
-
-
-
14.7
-
-
-
-
-
-
-
-
Sul hate
/L
250,000
-
-
62,000
-
-
11-
-
-
-
-
-
I -
-
-
-
-
Trichloroethene
/L
3
0.61J
0.66J
0.52J
0.60J
0.891
0.70J
0.881
1.8
Temp
°C
16.0
17.0
19.9
17.3
15.6
18.7
15.0
16.9
16.5
19.4
Tetrachloroethene
/L
0.7
0.55J
0.64J
0.64J
0.80J
1.1
0.991
1.0
1.6
0.991
1.5
1.4
Turbidi
NTU
259
790
95
82
35
53
165
24.2
Vin 1 chloride
I lAg/L
0.03
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR23OO86 Pagel of 2 Geosyntec Consultants of NC, P.C.

Table 3-I
Historical Groundwater Monitoring Data (DMW-02B)
Former York Road Landfill
Charlotte, North Carolina
Sam IeDate 9/28/2016 1 3/27/2017 1 9/26/2017 1 3/30/2018 1 9/27/2018 1 4/5/2019 1 9/20/2019 1 3/31/2020 1 9/29/2020 1 3/25/2021 1 9/28/2021 1 3/30/2022 1 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
1.5
1.2
1.2
1.1
1.2
2.1
1.4
1.3
2.0
2.4
1,2-dichlorobenzene
/L
20
0.36 J
1,2-dichloroethane
/L
0.4
0.51 J
1,4-dichlorobenzene
/L
6
2.0
2.1
1,4-dioxane
/L
3
8.9
2-hexanone MBK
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
8.4
8.3
5.8
6.5
6.9
8.0
7.8
8.1
7.1
11.1
9.6
10.0
14.2
Benzene
/L
1
1.1
3.3
2.3
4.9
5.0
1.7
1.3
2.5
2.8
1.0
2.0
Carbon disulfide
/L
1
3.6
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
1.2
2.0
1.9
Chromium I11+VI
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
/L
70
6.1
4.3
4.6
4.6
3.3
4.0
5.7
3.6
1 11
5.3
COD
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
S ecific Conductance
S/cm
499
471
471
468
391
529
398
647
431
670
632
756
495
823
Iron
/L
300
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
15
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
9.8
7.5
7.7
7.5
7.3
8.2
7.5
7.4
7.3
7.3
7.4
9.0
7.1
7.4
Selenium
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Silver
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
/L
25Q000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
0.72 J
Temp°C
21.6
16.8
23.3
17.4
23.9
18.1
19.1
16.0
22.2
17.0
23.8
14.8
15.0
18.0
Tetrachloroethene
/L
0.7
.1
1.1
Turbidi
NTU
Vin 1 chloride
/L
0.03
7
0.51 J
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1.Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.ne.gov/about/divisions/waste-management/waste-management-
niles/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 34
Historical Groundwater Monitoring Data (DMW-05)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/18/2008 9/17/2008 4/8/2009 9/10/2009 3/10/2010 9/23/2010 3/29/2011 9/20/2011 3/20/2012 9/25/2012 3/5/2013 9/10/2013 3/26/2014 9/23/2014 3/11/2015 9/23/2015
Constituent
Units
NC 2L
1, 1 -dichloroethane
L
6
-
0.86J
-
2.2J
-
28
1.6
7.
-
2.OJ
-
2.2J
-
2.7J
-
3.1
1, 1 -dichloroethene
7
-
-
-
-
-
0.53
-
-
1,2-dichlorobenzene
/L
20
-
-
-
0.63J
1.0
-
0.49J
0.44J
0.33J
0.30J
0.32J
1,2-dichloro ro ane
/L
0.6
-
-
-
-
-
-
-
2.2
-
-
-
-
1,4-dichlorobenzene
/L
6
-
0.61J
0.901
1.4
2.4
0.66
0.51.1
4.3
1.3
0.93J
0.37J
0.95J
0.95J
1.2
1,4-dioxane
L
3
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
17
68
70J
61
Arsenic
/L
10
-
6.4J
-
-
-
-
3.2J
-
-
-
-
-
-
-
Barium
L
700
62.0
140
93.0
180
140
110
120
105
152
145
107
175
63.8
155
116
145
Benzene
L
1
-
-
-
-
-
0.64
-
-
-
-
-
-
-
-
-
-
Chloride
µ L
250,000
100,000
-
-
-
-
-
Chlorobenzene
L
50
-
-
1.7J
0.25J
2.3J
1.4J
0.97J
0.68J
0.98J
1.5
0.82J
2.3
Chloroethane
L
3,000
-
-
23.2
Chloromethane
L
3
-
0.64J
-
Chromium (III+VI)
µ
10
3.1J
1.0J
OAJ
4.8
-
-
cis- l,2-dichloroethene
70
0.61J
-
1.2J
3.8
1.1
32.6
0.27J
1.4J
0.94J
1.4J
COD
L
-
43,000J
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
-
1,084
1,060
777
978
1,200
1,300
845
1,027
-
1,550
Iron
µ /L
300
2,300
12,000
7,900 - 9,200
9,600
16,000
270
7,760
12,100
14,300
8,930
7,310
12,400
8,340
10,800
8,350
243
Lead
L
15
2.1J
2.3J
-
-
-
0.38J
-
-
-
-
-
-
-
-
-
-
Mananew
/L
50
2,100
3,200
2,600
2,800
2,200
530
3,060
3,130
2,780
2,360
1,940
2,9401
1,570
2,520
1,920
7,300
H
SU
-
-
-
-
-
-
-
6.4
1 6.4
6.2
6.4
6.3
6.4
6.6
6.4
-
6.6
Selenium
µg/L
20
-
8.01
1 2.6
-
-
-
-
Silver
/L
20
-
0.3J
-
-
Sulphate
/L
250,000
-
130,000
-
-
-
-
Trichloroethene
/L
3
-
-
0.96
-
4.9
-
-
Temp
°C
-
-
-
16.6
19.4
19.3
20.0
15.4
19.8
15.9
21.9
15.4
Tetrachloroethene
/L
0.7
0.8
-
1.8
-
-
-
-
-
-
-
Toluene
L
600
-
-
-
trans-1,2-dichloroethene
RWL
100
-
-
-
0.66J
Turbidi
NTU
I -
-
-
-
-
54
48
15
24
8
8
1 12
6.0
Vin 1 chloride
/L
0.03
-
-
-
-
-
-
-
NC 21, - Title 15A of the North Carolina Administrative Code, Subchapter
21, Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 21, was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 34
Historical Groundwater Monitoring Data (DMW-05)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/22/2016 9/27/2016 3/27/2017 9/26/2017 3/30/2018 9/28/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1, 1 -dichloroethane
L
6
-
-
-
-
-
-
-
-
-
-
-
-
-
0.38 J
-
1,1-dichloroethene
7
-
-
-
-
-
-
-
-
-
-
-
-
1,2-dichlorobenzene
/L
20
-
-
-
-
-
-
-
-
-
-
-
1,2-dichloro ro ane
/L
0.6
-
-
-
-
-
-
-
-
-
-
-
1,4-dichlorobenzene
L
6
1.3 - 1.5
-
-
-
-
-
-
-
-
-
1,4-dioxane
L
3
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
-
-
-
-
-
-
-
Arsenic
/L
10
-
-
-
-
-
-
Barium
/L
700
119 - 129
57
64.4
62.7
67.6
66.9
67.2
46.1
57.3
58.0
68.0
53.1
162
-
90.1
Benzene
L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
0.37 J
-
Chloride
µ
250,000
-
-
-
-
-
-
-
Chlorobenzene
/L
50
1.3
-
-
Chloroethane
/L
3,000
-
-
Chloromethane
/L
3
-
-
Chromium (III+VI)
µ /L
10
-
-
-
cis-1,2-dichloroethene
/L
70
-
-
-
COD
/L
-
-
-
Specific ConductancePS/cm
-
1,008
1,280
1,249
1,061
1,421
1,167
856
398
940
904
696
866
943
857
1,897
Iron
µ /L
300
13,000 - 14,200
14,900
-
23,600
-
12,400
-
18,400
-
24,600
-
13,200
12,800
19,400
10,000
Lead
L
15
-
-
-
-
-
-
-
-
-
Mananew
L
50
2,230 - 2,390
5,810
-
6,440
-
2,600
-
4,290
-
4,050
-
4,140
2,530
5,830
3,570
H
SU
-
6.5
6.5
6.4
6.6
6.6
6.4
6.6
7.5
6.6
6.5
6.7
6.5
6.3
6.2
6.4
Selenium
µg/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Silver
µ /L
20
Sulphate
L
250,000
-
Trichloroethene
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
17.1
23.2
18.6
24.0
19.4
25.1
16.6
19.1
17.0
21.9
17.9
21.8
16.9
20.2
19.5
Tetrachloroethene
µ
0.7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Toluene
/L
600
-
1.2
trans-1,2-dichloroethene
/L
100
-
-
Turbidity
NTU
-
Vinyl chloride
/L
0.03
-
-
-
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-K
Historical Groundwater Monitoring Data (DMW-06)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/19/2008 9/17/2008 4/1/2009 9/10/2009 3/10/2010 3/29/2011 9/20/2011 3/20/2012 9/25/2012 3/4/2013 9/10/2013 1 3/26/2014 9/24,2014 3/5/2015 9/23/2015
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
8.6
9.0
9.0
10
7.7 - 8.2
9.5
-
8.0
6.8
6.4
8.6 - 9.1
6.4
5.8
5.9
1,2-dichlorobenzene
µ /L
20
0.52J
0.74J
0.981
0.58J
0.63 - 0.64J
0.73J
0.74J
0.72.1
0.801
0.85J
0.76 - 0.77J
0.79 - 0.82J
0.87J
-
-
1,2-dichloroethane
/L
0.4
0.95J
0.97J
1.0
1.0
0.88 - 0.891
1.0
-
1.0
0.88J
0.86J
0.99 -1.OJ
0.82 - 0.86J
0.79J
-
-
1,2-dichloro ro ane
/L
0.6
2.2
2.4
2.1
2.6
2.2
2.4
2.3
2.4
2.2
2.3
2.4
2.2-2.3
1.9
2.0
2.2
1,4-dichlorobenzene
/L
6
4.9
5.5
6.5
5.6
5.2
5.7
5.4
5.8
5.6
5.8
5.1
5.7
5.7
5.7
6.1
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
6,000
56
5.6 - 8.6J
7.2J
-
Arsenic
/L
10
2.5J
-
-
-
-
-
-
-
-
Barium
/L
700
430
460
480
490
470 - 510
565
556
511
516
550
575 - 617
540 - 550
549
575
608
Benzene
µ /L
1
-
0.51
-
0.52J
-
0.42J
0.38J
0.45J
-
0.42J
0.43 - 0.47J
0.40 - 0.42J
0.44.1
-
-
Chloride
/L
250,000
-
-
200,000
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
2.6
3.1
2.8
2.7J
3.0 - 3.1
3.5
3.3
3.4
3.2
3.9
3.4
3.5
3.8
3.5
3.7
Chloromethane
/L
3
-
-
-
-
-
-
0.56J
-
-
-
-
-
-
-
-
Chromium III+VI
/L
10
-
3.9J
0.6J
9.11
6.5 - 7.2J
11.6
-
-
-
-
6.4.1
-
-
cis- l,2-dichloroethene
/L
70
38
41
43
50
38 - 40
45.9
41.1
39.6
37.3
32.5
45.9 - 46.6
34.9 - 35.2
32.8
32.6
41.1
COD
/L
-
-
-
100,000
-
-
-
-
-
-
-
-
-
-
-
Diisopropyl ether
/L
70
-
-
-
-
-
-
-
-
-
-
Specific Conductance
µS/cm
-
-
-
-
-
1,182
1,182
849
1,170
1,250
1,188
1,350
1,408
-
1,301
Iron
/L
300
64
1,600
100
2,700
2,500 - 2,600
2,000
568
378
221J
349
183 - 368J
338 - 354
246J
174
102
Lead
/L
15
2.7J
1.91
-
-
1 - 1.4J
-
-
-
-
-
-
-
-
-
-
Man anew
/L
50
81
80
98
100 - 110
113
ENEW&MEM
14
128
126 -135
133 - 135
136
144
157
Mercury
µ /L
1
0.181
-
-
0.25 - 0.27
0.93
0.14J
0.13J
-
0.15J
0.11J
-
-
-
Meth 1 Tert Butyl Ether
µ /L
20
-
-
-
-
-
-
-
-
H
SU
-
-
6.2
6.2
6.1
6.1
6.1
6.1
6.3
6.3
6.1
Selenium
/L
20
4.2J
-
-
-
-
-
-
11.6
-
Silver
µ /L
20
0.5J
-
0.6J
-
-
Sul hate
µ /L
250,000
-
-
7,800
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
8.2
9.3
8.9
8.6
8.0 - 8.5
6.2
6.6
7.3
6.3
7.3
6.5 - 6.7
6.1-6.2
5.9
5.6
4.8
Tern
°C
-
-
-
-
-
15.4
17.5
18.0
17.4
15.9
19.6
15.4
16.3
-
16.9
Tetrachloroethene
µ /L
0.7
3.3
4.0
3.5
3.0
2.8 - 2.9
2.7
2.6
2.6
2.1
2.6
1 1.9
1.9 - 2.0
2.3
1.8
1.6
Toluene
/L
600
-
-
-
-
-
-
-
-
-
-
-
-
-
-
trans- l,2-dichloroethene
/L
100
1.4J
1.51
1.5J
1.7J
1.3J
1.5
1.3J
L 1J
L.1J
1.5J
1.0
1.01
1.0
1.2
Trichlorolluoromethane
/L
2,000
0.35J
-
-
-
-
-
-
-
-
-
Turbidi
NTU
-
-
-
-
-
-
65
56
8
5
7
20
11
-
6.25
Vin 1 chloride
/L
0.03
8.5
8.4
8.0
9.1
5.9-6.2
6.7
r 7.4
6.8
5.3
3.7
5.0 - 5.1
4.8
4.9
4.4
4.3
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 21, was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-K
Historical Groundwater Monitoring Data (DMW-06)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/24/2016 1 /27/2016 3/27/2017 9/26/2017 3/30/2018 9/28/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
5.1
5.5 - 4.8
4.7
4.7
4.2
4.5
4.2
4.8
4.3
4.2
3.3
3.9
4.0
3.6
4.1
1,2-dichlorobenzene
µ /L
20
-
-
-
-
-
1.0
1.1
1.0
1.1
-
-
1.0
1.1
1.3
1,2-dichloroethane
/L
0.4
-
-
-
-
-
-
-
-
-
-
-
-
0.55 J
-
1,2-dichloro ro ane
/L
0.6
2.2
2.0 - 1.8
2.2
1.8
2.8
1.9
2.2
2.2
2.3
2.3
1.6
2.2
2.1
2.1
15
1,4-dichlorobenzene
/L
6
5.5
5.3 -5.0
6.0
5.3
-
5.2
5.6
6.4
5.6
5.7
5.4
6.0
6.0
6.5
7.6
1,4-dioxane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
66.1
Acetone
/L
6,000
15 J
Arsenic
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
634
592-567
593
638
628
619
614
636
623
644
634
681
612
616
686
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
0.35 J
0.32 J
Chloride
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorobenzene
/L
50
3.7
3.7-3.5
3.8
4.0
3.9
4.3
4.3
5.1
4.4
4.4
4.3
5.0
5.0
5.3
6.1
Chloromethane
/L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
/L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
/L
70
28.3
31.7 - 28.8
26.6
28.9
24.9
28.1
25.0
34.0
26.2
25.6
19.5
24.1
27.0
25.3
25.3
COD
/L
-
-
-
-
-
-
-
-
-
-
Diisopropyl ether
/L
70
-
-
-
-
-
-
-
-
-
-
-
-
-
0.43 J
Specific Conductance
S/cm
-
1,323
1,300
1,328
715
1,409
1,363
1,336
1,413
1,412
1,447
1.464
1,446
1,262
1,226
2,177
Iron
/L
300
98
135 - 184
-
169
-
133
-
71.4
-
-
61.9
63.0
-
-
Lead
it a/L
15
-
5.3
-
-
-
-
-
-
-
Manganese
/L
50
2
154-160
-
262
184
-
258
252
Mercury
/L
1
-
-
0.32
-
-
-
-
-
Meth 1 Tert Butyl Ether
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
0.39 J
H
SU
-
6.3
6.3
6.0
6.2
6.2
6.1
5.9
6.2
6.2
6.2
6.1
6.8
6.2
5.84
6.12
Selenium
/L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Silver
/L
20
-
-
-
-
Sulphate
/L
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Trichloroethene
/L
3
5.5
4.9 - 4.3
5.0
4.4
4.9
4.1
4.6
5.1
4.1
3.9
2.7
3.5
4.0
3.7
4.4
Tern
°C
-
16.5
21.8
16.9
20.9
17.0
21.7
16.0
17.3
16.3
19.9
17.5
19.4
15.4
17.8
18.8
Tetrachloroethene
/L
0.7
1.7
1 1.3
1.3
1.2
-
1.2
1.1
-
-
-
0.92 J
0.61 J
Toluene
/L
600
-
-
-
-
-
1.6
trans-1,2-dichloroethene
/L
100
0.61 J
0.64 J
Trichlorofluoromethane
/L
1 2,000
1
1
-
-
Turbidi
NTU
Vin 1 chloride
I ug/L
1 0.03
3.7
3.9 - 3.2
2.7
3.3
3.3
3.0
3.4 J
2.6
1.9
2.3
3.5
3.2
3.3
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 21, was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-L
Historical Groundwater Monitoring Data (DMW-08)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/20/2008 9/16/2008 4/6/2009 9/9/2009 1 3/11/2010 9/23/2010 3/31/2011 9/20/2011 3/19/2012 9/24/2012 3/4/2013 9/9/2013 3/25/2014 9/22/2014 1 3/6/2015 1 9/21/2015
Constituent
Units
NC 2L
1,4-dioxane
L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
L
6,000
19
12
130
430
300
-
-
-
-
-
Arsenic
L
10
-
-
-
-
-
-
5.0
-
-
5AJ
-
-
Barium
L
700
8.81
110
120
130
11.01
330
403
128
195
85.1J
89.7J
33.3J
37.6
84.5J
69.2 - 70.8
55.2
Cadmium
L
2
-
-
2.9
4.8
0.72J
-
-
-
1.2
Chloride
L
250,000
-
6,600
-
-
-
-
Chloromethane
L
3
-
-
-
0.22J
Chromium (III+VI)
L
10
0.2J
2.3J
2.2J
2.5J
8.6
COD
L
-
130,000
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
-
168
169
163
121
177
144
159
156
146
Iron
µg/L
300
1 81
13,000
1,200 - 16,000
17,000
65J
24,000
50,200
15,400
23,700
9,710
10,600
3,790
10,100
7,990 - 8,260
5,890
Lead
L
15
-
3.5J
-
1.4J
4.8
-
5.1J
-
-
-
-
-
-
-
Mananew
L
50
2J
190
200
200
2J
440
688
208
317
122
139
40J
52
138
110-111
85
Nitrate as NO3-
L
10,000
-
560
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
-
6.5
6.6
5.8
6.5
6.6
6.4
6.5
6.2
6.5
Silver
L
20
0.4J
0.7J
-
-
-
-
-
-
-
-
-
Sul hate
250,000
2,800J
-
-
-
-
-
-
-
-
-
Temp
°C
-
-
-
16.7
18.8
20.3
19.4
17.1
20.0
17.6
19.7
18.7
Tetrachloroethene
µ L
0.7
0.77J
0.94J
0.89J
0.67J
0.61 J
0.68
0.72J
0.68J
0.48J
0.50J
0.68J
0.49J
-
-
-
Toluene
L
600
-
-
-
-
-
-
-
-
-
-
-
-
-
Turbidi
NTU
-
-
675
999
624
363
127
1 245
403
157
X lene m &
L
-
2.0
-
-
-
-
-
-
-
X lene o
L
-
1.0
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-L
Historical Groundwater Monitoring Data (DMW-08)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/23/2016 9/28/2016 3/27/2017 9/26/2017 3/30/2018 9/27/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,4-dioxane
L
3
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.58 J
Acetone
L
6,000
-
-
25.7
-
13.9 J
Arsenic
L
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Banum
L
700
176
11.2
10.3
10.3
9.5
10.7
12.7
12.5
-
7.9
23.2
46.7
25.0
15.5
Cadmium
L
2
-
1.2
1.4
1.4
-
1.2
1.8
1.7
-
-
2.8
H)
-
Chloride
L
250,000
-
-
-
-
-
-
-
-
Chloromethane
L
3
-
Chromium (III+VI)
L
10
-
COD
L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
151
164
149
156
122
157
140
145
141
70.1
76.7
186
189
181
274
Iron
µ L
300
19,800
296
-
400
-
245
-
367
-
242
-
4,530
2,570
3,060
597
Lead
L
15
-
-
-
-
-
-
-
-
-
-
Man anew
L
50
243
38
8.0
28.4
9.9
-
16.0
107
53.0
56.3
12.5
Nitrate as NO3-
L
10,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.6
6.6
6.1
6.6
6.5
6.3
6.3
6.6
6.6
5.2
5.9
6.5
7.0
6.3
6.5
Silver
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
250,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
18.0
21.6
18.0
20.8
18.3
22.0
17.0
18.7
17.9
21.3
18.2
20.3
16.1
17.4
19.6
Tetrachloroethene
µ
0.7
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Toluene
L
600
Turbidity
NTU
-
-
-
-
-
-
-
X lene m &
L
-
-
-
-
-
-
-
X lene o
L
-
-
-
I-
-
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-M
Historical Groundwater Monitoring Data (DMW-A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/25/2008 3/26/2008 9/18/2008 1 4/2/2009 9/9/2009 3/11/2010 3/30/2011 9/19/2011 3/19/2012 9/24/2012 3/4/2013 9/9/2013 3/25/2014 9/22/2014
3/6/2015 9/21/2015
Constituent
Units
NC 2L
Acetone
/L
6,000
-
-
-
10 - 20
-
6.8JL
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
51
26
110
28 - 31
140
53J
63
261
200
136
103 - 184
117
85.5
67.8J
67.4
65.9
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chloride
/L
250,000
-
-
-
2,400
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
L
10
9.0
7.4
19
11
23
13
9.6
46.5
37.7
24
19.7 - 30.8
19.1
15.9
10.0
11.2
11.3
COD
/L
-
-
-
-
18,000J
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
70.0
78.0
75.0
52.0
78.0
64.0
79.0
74.0
-
70.0
Iron
L
300
58
8,400
570 - 2,400
11,000
4,000
1,960
26,800
20,800
13,200
10,200-18,300
11,500
7,650
4,950
5,300
4,980
Lead
/L
15
-
-
3.8J
1.1 - 1.7J
3.5J
1.91
-
8.11
5.6J
6J
-
-
-
-
-
Man anew
/L
50
24
110
16
130
43J
35
355
262
149
102-242
123
84
65
63
57
Mercury
/L
1
-
-
-
0.01J
-
-
-
-
-
-
-
-
-
-
Nitrate as NO3-
L
10,000
1,900
H
SU
-
-
7.5
6.6
6.5
6.3
6.4
6.3
6.4
5.7
6.3
Silver
/L
20
0.3J
0.5J
-
-
-
-
-
-
-
-
-
Sul hate
L
250,000
3,000
-
-
-
-
-
Ternp
°C
-
-
18.5
20.1
21.3
20
20
20.7
19.3
20.4
20.0
Toluene
/L
600
-
-
-
-
Turbidi
NTU
-
-
-
209
736
706
193
365
430
157
-
108
NC 21, - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-M
Historical Groundwater Monitoring Data (DMW-A)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/24/2016 9/28/2016 3/27/2017 9/26/2017 3/30/2018 9/27/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 1 3/28/2023
Constituent
Units
NC 2L
Acetone
/L
6,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
/L
700
66.5
26.6
26.5
26.7
28.0
26.2
27.0
27.0
22.6
29.1
27.6
29.5
24.0
-
29.0
Benzene
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chloride
L
250,000
-
Chromium III+VI
L
10
11.6
-
COD
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
70.5
79.8
95.4
91.1
74.9
85.0
64.5
73.0
72.4
87.2
76.7
76.2
73.0
231
355
Iron
L
300
5,030
1,160
-
1,540
-
614
-
1,160
-
3,860
-
2,040
246
778
-
Lead
L
15
-
-
-
-
-
-
-
-
-
-
Manizanese
L
50
58
104
248
135
221
316
41
73.8
8.4
Mercury
/L
1
-
-
-
-
-
-
-
-
-
Nitrate as NO3-
L
10,000
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.4
6.3
6.6
6.5
6.2
5.8
6.1
6.3
6.3
5.7
5.9
6.1
6.3
6.2
6.3
Silver
L
20
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Sul hate
L
250,000
-
-
-
-
-
-
-
-
-
Temp
°C
-
19.2
21.1
20.7
24.5
19.3
22.7
18.1
18.7
18.7
23.2
18.2
20.0
20.4
17.0
18.1
Toluene
I tig/L
600
-
-
0.75 J
Turbidity
NTU
-
-
NC 21, - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https://deq.nc.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-N
Historical Groundwater Monitoring Data (YRW-10C)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/18/2008 1 9/18/2008 1 4/7/2009 1 9/9/2009 1 3/10/2010 1 9/23/2010 1 3/29/2011 1 9/21/2011 1 3/20/2012 1 9/25/2012 1 3/5/2013 1 9/10/2013 1 3/26/2014 1 9/23/2014 1 3/6/2015 1 922/2015
Constituent
Units
NC 21,
1,1-dichloroethane
/L
6
0.5J
0.68J
0.56J
0.47J
0.42J
1,4-dioxane
/L
3
Acetone
/L
6,000
1,700
600
17J
1,000
50 - 57
Arsenic
ggIL
10
8.11
4.8J
9.7J
2.8 - 6.0
-
6.6J
8.9J
Barium
L
700
440
420
410
470
430
400-450
446
466
388
425
378
500
414
473-478
408
512
Cadmium
/L
2
0.2J
1.3
-
2.4
.5
-
-
Carbon disulfide
I
700
-
-
-
-
-
-
-
-
-
-
-
-
1.91
-
-
-
Chloride
/I,
250,000
46,000
Chlorobenzene
/L
50
0.55J
0.61J
0.65J
-
-
0.76J
0.89J
0.27J
0.87J
-
Chromium III+VI
/L
10
6.2 - 7.2
12.9
9.4 - 9.6J
COD
/L
84,000
Specific Conductance
gs1cm
-
-
-
-
-
-
1,135
1,108
547
963
821
915
832
1,107
-
1,216
Iron
/I.
300
120,000
130,000
120,000
120,000
150,000
100,000 - 120,000
95,800
88,800
93,300
88,000
85,700
126,000
95,400
93,700 - 94,000
108,000
112,000
Lead
15
-
-
-
-
-
0.28 - 1.1 J
-
-
6.3J
-
-
-
-
7.4 - 8J
-
-
Man anew
/L
1 50
2,600
1,900
1 2,200
2,800
1,300
1 2,400
3,620
3,110
1,500
2,840
1 1,920
2,620
2,080
3,210 - 3,230
2,970
3,310
Mercury
/L
1
-
-
-
-
-
-
-
-
-
-
-
0.11 J
-
-
Nitrate as NO3-)
/I,
10,000
-
-
400
-
-
-
-
-
H
SU
-
-
6.4
6.3
6.2
6.2
6.2
6.3
6.4
6.2
6.3
Selenium
/I,
20
21
16J
31
3.0 - 3.3
5.OJ
11.5
14.6
10.9
Silver
/L
20
I.IJ
4.1J
6AJ
-
-
Sul hate
/L
250,000
6.000J
-
-
-
Temp
C
15.6
19.2
18.4
1 19.3
16.3
18.9
16.7
18.1
18.8
Tert-Bu lbenzene
I gg/L
70
-
-
Toluene
jj 2/1,
600
-
-
Turbidi
NTU
-
126.0
75.0
141.0
22.0
15.0
44.0
96.0
56.2
X lene m &
/L
2.0
-
-
X lene o
/L
I
1
1.0
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1.Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 2L are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detected.
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.ne.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-N
Historical Groundwater Monitoring Data (YRW-10C)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/24/2016 1 9/27/2016 1 3/27/2017 1 9/26/2017 1 3/30/2018 1 9/28/2018 1 4/5/2019 1 9/20/2019 1 3/31/2020 1 9/29/2020 1 3/25/2021 1 9/28/2021 1 3/30/2022 1 10/5/2022 3/28/2023
Constituent
Units
NC 2L
1,1-dichloroethane
/L
6
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,4-dioxane
/L
3
0.92 J
Acetone
/L
6,000
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Arsenic
ggil,
10
-
-
-
-
-
26.3
Barium
/L
700
415
473
378
522
389
551
428
481
1,290
482
400
518
460
504
434
Cadmium
/L
2
-
-
-
-
-
-
1.8
-
-
-
1.1
-
Carbon disulfide
/L
700
-
-
1.2
Chloride
/L
250,000
-
-
-
-
Chlorobenzene
/L
50
1.1
-
-
-
-
3.2
-
-
-
3.3
-
0.7 J
1.6
Chromium III+VI
/L
10
-
-
-
-
COD
/L
-
-
-
-
-
Specific Conductance
gs1cm
884
1,221
743
645
726
1,300
738
1,149
669
1,213
708
1,042
647
1,078
1,372
Iron
/L
300
119,000
116,000
-
115,000
-
108,000
-
102,000
-
116,000
-
113,000
105,000
110,000
117,000
Lead
15
-
-
-
-
-
-
-
-
Man anew
/L
50
2,040
3,150
-
68.0
-
3,380
-
2,840
-
2,930
-
2,580
1,600
3,070
1,230
Mercury
/L
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Nitrate (as NO3-)
/L
10,000
-
-
-
H
SU
6.4
6.3
6.4
6.4
6.4
6.4
6.3
6.4
6.4
6.3
6.4
6.5
62
6.0
6.4
Selenium
/L
20
-
-
-
-
-
-
-
Silver
/L
20
Sulphate
/L
250,000
-
-
-
-
-
-
-
-
-
-
Tem
°C
17.3
24.3
19.2
22.7
18.6
24.2
17.1
19.9
16.9
20.9
19.2
22.7
17.1
19.6
1 20.2
Tert-Bu lbenzene
/L
70
-
-
-
0.54 J
Toluene
/L
600
0.8 J
Turbidity
NTU
-
X lene m &
/L
X lene o
/L
NC 21, - Title 15A of the North Carolina Administrative Code, Subchapter
2L Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
Notes:
1. Only constituents detected in one or more samples since March 2008 are shown.
2. Values exceeding NC 21, are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not sampled or not detecte
4. NC 2L was obtained from NCDEQ Solid Waste
Section (https:Hdeq.ne.gov/about/divisions/waste-management/waste-management-
rules/solid-waste-rules) on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-O
Historical Surface Water Monitoring Data (NT-1)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/17/2008 9/15/2008 3/31/2009 9/9/2009 3/9/2010 9/23/2010 3/29/2011 9/22/2011 3/21/2012 9/26/2012 3/6/2013 9/11/2013 3/27/2014 9/24/2014 3/11/2015 9/24/2015
Constituent
Units
NC 2B
1, 1 -dichloroethane
/L
6a
-
-
-
-
-
-
-
-
0.88J
-
-
-
-
-
-
-
1,4-dioxane
µ /L
0.35`
Acetone
µ /L
31002
-
-
-
-
1.6J
-
-
6.2J
-
-
-
-
-
-
-
-
Arsenic
/L
102
-
-
-
-
-
0.55J
-
-
-
-
-
-
-
-
-
-
Barium
µ /I,
1,000,
50
42
70
110
52J
360
30.9
59.7J
57.6J
52.7J
36J
61.1J
91.6
47.2J
52.2
88.2
Chromium III+VI
µ /L
11b
0.2J
0.2J
1.6J
-
1.01
3.4
-
-
-
-
-
-
-
-
-
-
cis- l,2-dichloroethene
µ /L
602
-
-
-
-
-
-
-
0.59J
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
140
180
151
185
182
158
187
204
-
215
Iron
µ /L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3,690
-
Lead
µ /L
14b
-
-
1.2J
-
1.0J
-
-
-
-
-
-
-
-
-
Manganese
µ /L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
557
-
Mercury
/L
0.012b
-
-
-
-
-
0.1J
-
-
-
-
-
-
-
-
-
-
H
SU
-
-
-
-
-
-
-
6.9
6.5
6.4
6.6
6.9
6.6
6.8
7.4
-
6.4
Selenium
µ /L
5b
-
-
-
-
4.8J
-
-
-
-
-
-
-
-
-
-
-
Silver
/L
30b
-
-
-
0.5J
-
-
-
-
-
-
-
-
-
-
-
-
Temp
loc
-
-
-
-
-
-
-
15.4
21.7
1 22.5
1 23.6
11.4
23.3
15.4
16.9
-
18.6
Toluene
/L
11b
-
-
-
-
-
1.5
-
-
I -
I -
-
-
-
I -
-
-
Turbidi
NTU
I -
-
-
-
-I
-
149
1 13.0
1 112
10.0
48.0
52.0
1 1.0
1 -
46.4
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section (https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-O
Historical Surface Water Monitoring Data (NT-1)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/21/2016 9/27/2016 3/28/2017 9/52017 3/9/2018 9/25/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2B
1, 1 -dichloroethane
/L
6a
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1,4-dioxane
µ /L
0.35`
0.71 J
Acetone
µ /L
3,1002
-
-
-
-
-
-
-
-
-
-
-
-
10.5 J
Arsenic
/L
102
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
µ /L
1000a
58.8
59.1
47.4
55.0
68.8
77.9
28.8
35.2
47.1
43.5
50.5
39.0
43.2
-
189
Chromium III+VI
µ /L
11b
-
7.2
-
-
-
-
-
-
-
-
-
-
-
-
3.0
cis-1,2-dichloroethene
µ /L
602
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
220
91.8
154
195
204
244
57.2
189
173
178
193
138
212
113
225
Iron
µ /L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
µ /LManganese
µ /L
-
-
-
-
-
-
-
-
-
-
-
-
Mercury
/L
0.012b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.9
6.7
6.8
6.8
7.2
6.5
6.6
7.1
7.0
6.5
6.9
6.9
7.0
6.9
7.1
Selenium
µ /L
5b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Silver
/L
30b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
9.0
23.7
22.0
24.3
12.2
24.1
14.5
19.7
15.4
22.2
14.1
20.6
14.9
15.3
18.4
Toluene
/l-
11b
-
-
2.3
Turbidity
NTU
-
-
-
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section (https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-P
Historical Surface Water Monitoring Data (NT-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/17/2008 9/15/2008 9/18/2008 3/31/2009 9/9/2009 3/9/2010 9/23/2010 3/29/2011 9/22/2011 3/21/2012 3/6/2013 3/27/2014 9/24/2014 3/11/2015
Constituent
Units
NC 2B
1,1-dichloroethane
6a
-
0.70J
-
-
1.5J
0.981
9.7
-
-
-
-
-
-
-
1,1-dichloroethene
300a
-
-
-
-
-
-
0.59
-
-
-
-
-
-
-
4-Meth 1-2- entanone
2 800a
-
-
-
-
-
-
-
-
-
-
-
-
-
6.9
Acetone
3100a
-
-
-
-
-
1.7J
-
-
6.7J
12.6J
-
-
-
-
Arsenic
10a
-
-
-
-
-
-
4.6
-
-
-
-
-
-
-
Barium
1000a
52
-
35
60
51J
49J
140
58.6
17J
125.0
54.2J
47.1
25.1J
75.5
Benzene
1.19a
-
-
-
-
-
-
0.83
-
-
-
-
-
-
-
Cadmium
0.82b
-
-
-
-
-
-
0.17J
-
-
-
-
Chloromethane
/L
2.6a
-
-
-
-
-
-
-
-
0.21J
-
-
-
Chromium III+VI
11b
-
-
0.5J
2.3J
2.6J
-
5.5
-
-
-
-
-
12.6
cis-1,2-dichloroethene
60a
-
0.56J
-
-
1.8J
0.94J
9.4
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
-
-
-
196
140
142
307
269
191
-
Iron
-
-
-
-
-
-
-
-
-
-
-
-
-
8,910
Lead
14b
-
-
-
-
-
-
3.3
-
-
-
-
8.9
Manganese
-
-
-
-
-
-
-
-
-
-
-
-
-
-
134
H
SU
-
-
-
-
-
-
-
-
6.7
7.1
6.5
6.8
7.1
7.9
-
Selenium
5b
-
-
-
-
-
0.72J
-
-
-
-
-
-
-
Silver
/L
30b
-
-
-
-
0.2J
-
-
-
-
-
-
Trichloroethene
2.5a
-
0.69J
-
-
0.891
0.76J
7.6
-
-
-
-
-
-
-
Temp
°C
-
-
-
-
-
-
-
12.0
22.9
22.9
10.2
13.6
17.5
-
Tetrachloroethene
0.7a
0.59J
0.77J
-
-
-
0.881
4.1
-
-
-
-
-
-
-
Turbidity
NTU
-
-
-
-
-
-
-
62
83
5
21
20
Vinyl chloride
/L
0.025a
-
-
-
-
0.7J
2.5
-
-
-
-
-
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-P
Historical Surface Water Monitoring Data (NT-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/24/2015 3/21/2016 9/27/2016 3/28/2017 9/5/2017 3/9/2018 9/25/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 1 3/25/2021 1 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2B
1,1-dichloroethane
6a
-
-
-
-
CIO
Z
q
+C�
a
-
zSpecific
Q
a
-
44
q
+C�
a
-
-
-
-
-
-
1,1-dichloroethene
300a
-
-
-
-
-
-
-
-
-
-
-
-
4-Meth 1-2- entanone
2 800a
-
-
-
-
-
-
-
-
-
-
-
Acetone
3100a
-
-
-
-
-
-
-
-
-
-
-
Arsenic
10a
-
-
-
-
-
-
-
-
-
-
-
-
Barium
1000a
48.0
45.0
66.7
38.6
61.3
41.7
47.4
34.3
95.6
42.7
-
31.0
Benzene
1.19a
-
-
-
-
-
-
-
-
-
-
-
-
Cadmium
0.82b
-
-
-
-
-
-
-
-
-
-
Chloromethane
2 6a
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
11b
-
-
7.4
-
-
-
cis-1,2-dichloroethene
60a
-
-
-
Conductance
S/cm
-
265
307
155
212
228
187
279
131
225
155
85.6
200
Iron
-
-
-
-
-
-
-
-
-
-
-
-
Lead
14bManganese
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
6.9
7.0
7.0
6.8
7.0
7.0
6.8
5.8
6.7
6.8
6.5
7.0
Selenium
/L
Sb
-
-
-
-
-
-
-
-
Silver
/L
30b
-
-
-
-
-
-
-
Trichloroethene
/L
2 5a
-
-
Temp
°C
-
17.5
11.7
22.6
21.8
4.6
14.2
14.9
20.8
14.3
1 14.0
1 15.8
1 17.9
Tetrachloroethene
/L
0.7'
-
-
-
-
-
-
-
-
-
-
-
-
Turbidi
NTU
-
31.4
-
-
-
-
-
-
Vinyl chloride
/L
0.0253
-
-
-
-
-
-
-
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section (https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with 7 qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-Q
Historical Surface Water Monitoring Data (SC-1)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/17/2008 9/18/2008 3/31/2009 9/9/2009 3/9/2010 9/23/2010 3/29/2011 9/22/2011 3/22/2012 9/26/2012 3/6/2013 9/11/2013 3/27/2014 9/24/2014 3/11/2015 9/23/2015
Constituent
Units
NC 2B
1,4-dioxane
/L
0.35`
Acetone
/L
3 100'
2.1J
2.8J
5.9J
10.6J
Arsenic
/L
10'
2.8J
2.5J
-
-
Barium
/L
1000'
29.0
30.0
35.0
22J
24J
24.0
22.4
25.8J
33.6J
21.6J
28.9J
19.5J
30.6
25.1J
26.4
15.7
Bromodichloromethane
/L
0.55'
0.63J
-
Chlorodibromomethane
/L
0.8'
L1.1
Chloroform
/L
60'
0.811
Chloromethane
/L
2.6'
0.24J
Chromium III+VI
/L
11,
0.6J
0.91
5.8
0.91
0.6J
5.9
Specific Conductance
Its/cm
287
242
261
311
310
319
379
418
438
Iron
/L
-
-
388
-
Lead
/L
14'
1.91
0.36J
Manganese
/L
-
-
-
-
-
-
-
-
-
-
-
-
-
36.5
-
Mercury
/L
0.012'
0.14J
H
SU
6.9
7.2
7.6
7.4
1 7
1 7.5
1 7.1
7.8
1
7.4
Selenium
L
5e
0.6J
Temp°C
14.7
22.6
1 20.7
24.8
1 10.6
1 26.9
1 15.0
19.7
1
24.5
Turbidity
NTU
70.0
1 9.0
2.0
1 26.0
1 10.0
1 7.0
1 9.0
1
2.2
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1.Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-Q
Historical Surface Water Monitoring Data (SC-1)
Former York Road Landfill
Charlotte, North Carolina
Sample3/21/2016 9/27/2016 3/28/2017 9/5/2017 3/9/2018 9/25/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
1,4-dioxane
/L
Acetone
/L
Arsenic
/L
-
-
-
-
-
-
-
-
Barium
/L
32.2
44.5
29.6
24.7
28.3
28.6
81.0
25.6
30.0
27.6
30.7
22.9
23.3
24.6
Bromodichloromethane
/L
-
-
Chlorodibromomethane
/L
Chloroform
/L
Chloromethane
/L
2.6'
-
Chromium III+VI
/L
116
-
15.4
Specific Conductance
S/cm
286
1,750
200
315
352
191
74
370
332
340
222
349
224
316
752
Iron
/L
-
-
-
-
-
-
-
-
Lead
/L
14'
10.6
Manganese
/L
-
-
-
-
-
-
-
-
-
-
-
Mercury
/L
0.012"
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
ISU
7.5
1 6.8
1 7.2
1 7.5
1 7.5
1 7.7
7.0
1 7.6
1 7.6
7.2
7.4
7.7
7.5
1 7.3
1 7.9
Selenium
I ltg/L
5n
Tem
°C
15
23.8
20.9
27.1
13.6
26.5
14.6
22.0
16.7
24.3
15.6
24.1
16.2
121
18.9
Turbidi
NTU
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1.Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section (https:Hdeq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-R
Historical Surface Water Monitoring Data (SC-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/17/2008 9/15/2008 3/31/2009 9/9/2009 3/9/2010 9/23/2010 3/31/2011 9/22/2011 3/22/2012 9/26/2012 3/7/2013 9/12/2013 3/27/2014 9/24/2014 3/12/2015
Constituent
Units
NC 213
1,4-dioxane
L
0.35`
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
L
3100a
-
2.6J
2.6J
7.OJ
-
-
Arsenic
L
10a
-
-
1.7J
-
-
0.56J
-
-
-
-
-
-
Barium
L
1 1000a
30
55
36
26J
28J
21
34.5
26.2J
44.1J
25.2J
38AJ
21.8J
32.0
32.9J
66.4
Bromodichloromethane
L
0.552
-
-
-
-
0.54J
-
-
-
-
-
-
-
Chlorodibromomethane
L
0.4a
-
-
-
-
-
Chloroform
L
60a
-
-
1.1J
-
-
-
0.22J
-
-
-
Chromium III+VI
L
11b
0.6J
0.3J
1.2J
1.6J
1.11
6.7
3.lJ
-
-
-
-
-
-
6.OJ
6.4
Specific Conductance
S/cm
-
-
-
251
252
261
355
361
300
392
410
-
Lead
L
14b
1.0J
1.1 i
0.39J
-
-
-
-
-
-
-
-
5.4
MercuryL
0.012b
O.011
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
-
6.7
7.2
7.5
7.6
7.4
7.4
7.4
7.8
Trichloroethene
L
2.52
-
-
0.81J
-
-
-
-
-
-
-
Temp
°C
-
-
12.1
24.6
22.0
22.9
10.2
25.1
15.0
19.5
-
,Turbidity
NTU
-
-
-
-
-
-
-
75.4
9.0
49.0
31.0
2.0
6.0
23.0
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-R
Historical Surface Water Monitoring Data (SC-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 9/21/2015 3/24/2016 9/28/2016 3/28/2017 9/5/2017 3/9/2018 9/25/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 213
1,4-dioxane
µ /L
0.35`
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.84 J
Acetone
µ L
31008
-
-
-
-
-
-
-
-
Arsenic
L
10,
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Barium
µ /L
1 1000a
27.8
40.8
41.0
31.3
47.4
29.8
31.5
61.7
30.3
33
30.9
35.0
23.6
26.0
26.0
Bromodichloromethane
µ /L
0.552
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chlorodibromomethane
µ L
0.4'
-
-
-
-
Chloroform
L
602
-
_
-
-
Chromium III+VI
µ L
11b
5.0
-
-
-
5.9
-
-
12.8
-
-
-
-
-
-
-
-
Specific Conductance
µS/cm
-
354
384
246
200
325
354
357
87.9
345
337
338
317
349
341
285
740
Lead
uglL
14b
-
-
-
-
5.5
-
-
7.3
-
-
-
-
-
-
-
-
Merc
L
0.012b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
7.1
8.5
7.2
7.2
7.3
7.8
7.4
7.5
7.8
8.0
7.1
7.9
7.8
8.1
7.4
7.5
Trichloroethene
L
2.52
-
-
-
-
-
-
-
-
-
-
-
Temp
°C
-
23.0
20.1
27.5
21.9
28.9
13.4
25.9
16.6
24.9
16.5
25.5
17.4
26.3
15.0
17.1
18.8
,Turbidity
NTU
60.0
-
-
-
-
-
-
-
-
-
-
-
-
-
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-S
Historical Surface Water Monitoring Data (NT-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/17/2008 9/15/2008 3/31/2009 9/9/2009 3/9/2010 9/23/2010 3/29/2011 9/22/2011 3/22/2012 9/26/2012 3/7/2013 3/27/2014 9/23/2014 3/11/2015 9/23/2015
Constituent
Units
NC 2B
1,4-dioxane
0.35`
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
/L
3100a
-
-
-
-
16.OJ
-
2.3J
7.7J
-
-
-
-
-
-
-
Arsenic
/L
10a
-
4.OJ
-
-
0.0
-
-
-
-
-
-
-
-
-
Barium
/L
1000a
55.0
35.0
66.0
50.OJ
77.OJ
48.0
48.4
94.4J
70.9J
71.OJ
50.7J
70.8
64.8J
68.4
45.6
Chlorobenzene
/L
140b
-
-
-
0.66J
-
-
-
-
-
0.34J
0.28J
-
-
-
Chloromethane
/L
2.6a
-
-
-
-
-
0.65J
-
0.191
-
-
-
-
-
Chromium III+VI
/L
11b
0AJ
0.5J
0.91
0.81
5.8
-
-
-
-
-
-
-
-
-
Specific Conductance
S/cm
-
-
-
-
-
293
722
365
547
308
397
385
-
287
Iron
/L
-
-
-
-
-
-
-
-
-
-
-
-
2,730
-
Lead
14b
-
-
-
0.5J
-
-
-
-
-
-
-
-
Manganese
-
-
-
-
-
-
-
-
-
-
-
481
-
H
SU
-
-
-
-
-
7.3
7.1
7.5
7.2
7.7
6.8
7.6
-
6.9
Selenium
/L
5b
-
-
-
0.72J
-
-
-
-
-
-
-
-
-
ITemp
°C
-
-
-
-
11.3
21.2
19.6
18.6
9.5
12.7
17.4
-
19.9
ITurbidity
INTU
I-
I -
-
55.0
69.0
15.0
24.0
35.0
34.0
-
20.3
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section (https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 3-S
Historical Surface Water Monitoring Data (NT-2)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/21/2016 9/28/2016 3/28/2017 9/5/2017 3/9/2018 9/25/2018 4/5/2019 9/20/2019 3/31/2020 9/29/2020 3/25/2021 9/28/2021 3/30/2022 10/5/2022 3/28/2023
Constituent
Units
NC 2B
1,4-dioxane
/L
0.35`
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Acetone
3100a
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Arsenic
10a
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Banum
1000a
68.3
62.1
55.1
48.4
56.0
84.0
37.7
78.5
74.3
74.9
71.6
98.2
75.4
-
64.0
Chlorobenzene
140b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Chloromethane
2 6a
-
-
-
-
-
-
-
-
-
-
-
-
Chromium III+VI
11b
-
-
-
-
-
-
-
-
-
-
-
8.8
-
-
-
Specific Conductance
S/cm
-
431
248
273
259
326
348
84
584
399
401
398
309
407
237
620
Iron
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Lead
/L
146
-
-
-
-
-
-
-
-
-
-
-
Manganese
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
H
SU
-
7.5
7.0
7.3
6.9
7.4
7.3
6.7
7.4
7.1
7.0
7.4
7.4
7.3
6.9
7.5
Selenium
/L
5b
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
ITemp
°C
-
10.8
24.6
19.6
22.0
6.7
24.1
14.2
17.9
15.9
21.1
15.2
17.4
11.0
13.0
18.3
ITurbidity
NTU
I-
-
-
-
-
-
-
-
-
-
-
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
c - Water supply in stream target value
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 3-T
Historical Surface Water Monitoring Data (ST-3)
Former York Road Landfill
Charlotte, North Carolina
Sample Date 3/28/2017 1 9/5/2017 1 3/9/2018 1 9/25/2018 1 4/5/2019 1 9/20/2019 1 3/31/2020 1 9/29/2020 1 3/25/2021 1 9/28/2021 1 3/30/2022 1 10/5/2022 3/28/2023
Constituent
Units
NC 2B
Barium
L
1,000,
24.8
32.1
37.0
39.1
30.1
37.6
41.2
38.9
41.4
53.7
37.1
-
42.2
Chromium III+VI
L
11"
-
-
-
-
-
-
-
-
-
-
-
3.7
Specific ConductancePS/cm
102
177
209
234
44.2
202
240
212
246
162
224
108
233
H
SU
-
6.7
6.4
6.7
7.1
6.7
7.3
7.2
6.8
7.3
7.5
8.8
7.3
7.4
Temp
°C
18.6
24.2
5.1
24.3
14.0
17.4
15.4
22.0
14.0
17.2
14.1
12.4
16
NC 2B - Title 15A of the North Carolina Administrative Code, Subchapter
2B Standards
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
°C - Degrees Celsius
NTU - Nephelometric Turbidity Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
Notes:
1. Only constituents detected in one or more samples since March 2008
are shown.
2. Values exceeding NC 2B are displayed in bold and shaded gray.
3. Blank table entries indicate that the constituent was either not
sampled or not detected. Refer to analytical reports for information
on which analyses were performed.
4. NC 2B standards were obtained from NCDEQ Water Resources
Planning Section(https://deq.nc.gov/nc-stdstable-09222017)
on 8 May 2023.
5. Analytical results with J qualifier indicate estimated values.
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 4
Existing Groundwater and Surface Water Sampling Schedule
Former York Road Landfill
Charlotte, North Carolina
Sample
Sample Type
VOCs
(EPA 8260)
RCRA Metals
(EPA 6020 &
7470)
Total Iron &
Manganese
(EPA 6020)
1 4-Dioxane
(EPA
8260SIM)
Field
Parameters
Water
Level
Field Blank
Blank
S
S
A
O
Trip Blank
Blank
S
O
DDW-01
Ground Water
S
S
A
O
S
S
DDW-01A
Ground Water
S
S
O
S
S
DDW-02
Ground Water
S
S
O
S
S
DDW-03
Ground Water
S
S
O
S
S
DDW-03A
Ground Water
S
S
O
S
S
DDW-05
Ground Water
S
DDW-06
Ground Water
S
DMW-01
Ground Water
S
S
A
O
S
S
DMW-02
Ground Water
S
S
A
O
S
S
DMW-02A
Ground Water
S
S
O
S
S
DMW-02B
Ground Water
S
S
O
S
S
DMW-05
Ground Water
S
S
A
O
S
S
DMW-06
Ground Water
S
S
A
O
S
S
DMW-08
Ground Water
S
S
A
O
S
S
DMW-09
Ground Water
S
DMW-A
Ground Water
S
S
A
O
S
S
DMW-B
Ground Water
S
Duplicate
Ground Water
S
S
A
O
S
YRW-06A
Ground Water
S
YRW-07
Ground Water
S
YRW-10C
Ground Water
S
S
A
O
S
S
YRW-11B
Ground Water
S
NT-1
Surface Water
S
S
O
S
NT-2
Surface Water
S
S
O
S
SC-1
Surface Water
S
S
O
S
SC-2
Surface Water
S
S
O
S
ST-1
Surface Water
S
S
O
S
ST-3
Surface Water
S
S
O
S
WSW-2
Water Supply Well
A*
A*
WSW-3
Water Supply Well
A*
A*
Notes:
1. EPA - Environmental Protection Agency
2. RCRA - Resource Conservation and Recovery Act
3. VOCs - volatile organic compounds
4. S - Semi-annual frequency, A - Annual frequency, or O - schedule to be determined
5. Field parameters include conductivity, pH, and temperature.
6. RCRA metals include arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver.
7. One trip blank should be included with every sample shipment.
8. * indicates that water supply well was permanently abandoned by others on 21 September 2022.
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 5
Historical Vertical Hydraulic Gradients
Former York Road Landfill
Charlotte, North Carolina
Well Pair
tTotal Depth
Difference oft)
Mar-06
Sep-06
Feb-07
Sep-07
Mar-08
Sep-08
Mar-09
Sep-09
Mar-10
Sep-10
Mar-11
Sep-11
Mar-12
Sep-12
Mar-13
Sep-13
Mar-14
Sep-14
DDW-OIAIDDW-01
40
0.010
0.009
0.009
0.009
0.009
0.010
0.010
0.010
0.010
0.009
0.008
0.009
0.010
0.009
0.009
0.009
DDW-02/DMW-05
35
-0.003
-0.001
-0.041
0.015
-0.025
0.013
-0.053
0.018
-0.026
0.019
-0.011
0.009
-0.017
0.007
-0.033
0.011
-0.025
0.012
DDW-03/DMW-06
31.5
0.020
0.021
0.023
0.018
0.018
0.019
0.019
0.018
0.022
0.018
0.018
0.018
0.022
0.020
0.022
0.020
0.022
0.021
DDW-03A/DDW-03
72
0.066
0.062
0.067
0.066
0.064
0.062
0.063
0.068
0.077
0.071
0.064
0.069
0.070
0.073
0.071
0.076
0.075
0.072
DDW-05/DMW-09
20.5
0.003
-0.007
-0.008
-0.010
-0.014
-0.009
-0.005
-0.008
-0.007
-0.011
-0.012
-0.010
-0.011
-0.010
-0.009
-0.011
-0.007
-0.011
DDW-06/DMW-B
40
-0.004
-0.003
-0.004
-0.004
-0.002
15
0.000
-0.005
-0.004
-0.006
-0.003
-0.003
-0.003
-0.002
-0.002
-0.005
-0.003
-0.004
DMW-02B/DMW-02A
T_
1.001
1.019
1.031
1.050
1.150
1.022
0.993
0.993
0.921
0.886
0.996
1.031
1.015
1.075
1.038
0.996
0.941
0.965
Notes:
Vertical gradients above are dispalyed in ft/ft based on groundwater elevations in Table 1 and the difference of total well depth.
Data prior to 2015 were obtained from previous reports prepared by others.
No
Hi ies eno ea "
Lowest Period Reading
Positive values indicate an upward gradient; negative values indicate a downward gradient.
CAR230086 Page 1 of 2 Geosyntec Consultants of NC, P.C.

Table 5
Historical Vertical Hydraulic Gradients
Former York Road Landfill
Charlotte, North Carolina
Well Pair
Mar-15
Sep-15
Mar-16
Sep-16
Mar-17
Sep-17
Mar-18
Sep-18
Mar-19
Sep-1 9
Mar-20
Sep-20
Mar-21
Sep-21
Mar-22
Nov-22
Mar-23
DDW-OIAIDDW-01
0.001
0.009
0.009
0.009
0.008
0.009
0.008
0.009
0.009
0.009
0.008
0.010
0.008
0.009
0.010
0.009
0.010
DDW-02/DMW-05
-0.023
0.012
-0.009
0.012
-0.005
0.013
-0.014
0.011
-0.022
0.008
-0.034
0.013
-0.026
0.019
0.004
0.01
-0.002
DDW-03/DMW-06
0.021
0.018
0.023
0.018
0.021
0.021
0.020
.0 77
0.026
0.023
0.028
0.023
0.032
0.026
0.025
0.024
0.026
DDW-03A/DDW-03
0.069
0.069
0.083
0.074
0.075
0.080
0.078
0.072
0.100
0.070
0.102
0.093
0.102
0.100
0.095
0.081
0.087
DDW-05/DMW-09
-0.007
-0.011
-0.006
-0.011
-0.011
-0.011
-0.011
-0.009
-0.006
-0.011
-0.006
-0.012
-0.008
-0.012
bW.016
-0.012
-0.009
DDW-06/DMW-B
-0.003
-0.004
-0.007
-0.005
-0.004
-0.005
-0.004
-0.005
-0.006
-0.006
-0.006
-0.006
-0.006
-0.006
-0.005
-0.004
-0.006
DMW-02B/DNI 02A
0.998
1.020
0.941
L034
0.951
0.874
0.700
0.217
-0.023
-0.317
-0.122
-0.251
-0.125
-0.156
-0.106
-0.197
-0.134
Notes:
Groundwater elevations above are dispalyed in ft above National Geodetic Vertical Datum.
Data prior to 2015 were obtained from previous reports prepared by others.
es eno ea mg
owes[ Period Reading
CAR230086 Page 2 of 2 Geosyntec Consultants of NC, P.C.

Table 6
March 2023 Detected Constituents in Groundwater
Former York Road Landfill
Charlotte, North Carolina
Location
DDW-01
DDW-OIA
DDW-02
DDW-03
DDW-03 DUP
DDW-03A
DMW-01
DMW-02
DMW-02A
DMW-02B
DMW-05
DMW-06
DMW-08
DMW-A
YRW-10C
Sample Date
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
Method
Constituent
Units
EQL
NC 2L
MCL
Barium
L
2
700
2,000
23.6
60.8
336
423
432
29.8
71.5
26.1
14.2
90.1
686
15.5
29
434
Cadmium
L
2
2
5
-
-
44.5
-
-
EPA 6020B
Chromium III+VI
Iron
2
200
10
300
100
-
4.4
386
2.0
2.0
16,100
6.5
-
10,000
-
117,000
Lead
2
15
-
-
-
-
-
-
-
Man anew
2
-
27
-
-
-
-
665
-
3,570
12.5
8.4
1,23
1,1-dichloroethane
L
1
-
7.3
43
8.9
4.7
2.8
-
2.4
-
4.1
-
-
1 1-dichloroethene
L
1
M
7
0.63
-
-
-
-
1,2-dichlorobenzene
L
1
600
-
2.0
1.4
0.89
0.30
1.3
1,2-dichloroethane
L
1
5
-
-
-
-
0.51
-
1,2-dichloropropane
µg/L
1
5
0.87
2.
-
-
-
-
-
-
1,4-dichlorobenzene
/L
1
6
75
-
-
-
4.4
-
2.1
Methyl Ethyl Ketone
/L
5
4,000
-
-
-
-
10.9
-
-
-
Acetone
/L
25
6,000
-
-
13.3
-
14.2
-
144
118
15
13.9
Benzene
/L
1
1
5
0.63
0.53
0.51
4.7
-
-
0.32
-
Bromomethane
/L
5
-
-
-
-
-
10.7
-
-
-
EPA
Chlorobenzene
/L
1
50
100
4.3
2.8
5.7
7.0
4.7
-
1.9
6.1
1.6
Chloromethane
/L
2
3
-
-
-
-
0.65
-
-
-
8260D
cis- l,2-dichloroethene
1
70
70
19.6
13.9
2.3
25.5
14.6
2.2
-
5.3
25.3
Dichlorodifluoromethane
/L
2
1000
-
8.0
1.1
-
-
-
-
-
Diisopropyl ether
/L
1
70
-
-
0.25
0.53
0.37
0.43
Ethanol
/L
200
-
323
-
-
-
III
-
MTBE
/L
1
20
-
-
-
-
-
-
0.39
Trichloroethene
/L
1
3
5
5.0
3.
3.4
2.7
0.72
-
tert-bu lbenzene
/L
1
70
-
-
-
-
-
-
-
0.54
Tetrachloroethene
L
1
0.7
5
6.1
0.71
0.61
-
-
-
Toluene
L
1
600
1,000
0 s4
-
-
1.0
0.78
0.99
1.2
1.6
1.1
0.75
0.8
trans-1,2-dichloroethene
L
1
100
100
-
0.82
-
-
-
-
0.64
-
-
-
Vinyl chloride
µ L
1
0.03
2
.8
1.5
3.3
0.93
-
-
EPA 8260D
by SIM
1,4-Dioxane
µg/L
1
3
-
1.5
4.7
3
81.4
-
-
0.38
-
0.58
-
0.92
Temp,°C
20.5
19.7
20.6
18.8
18.8
18.8
18.2
20.8
18.8
1 18.0
1 19.5
1 18.8
1 19.6
1 18.1
20.2
Field
pH Field
SU
6.72
6.86
5.99
6.40
6.40
1 7.91
5.80
7.36
12.26
1 7.36
1 6.40
1 6.12
1 6.45
1 6.26
6.35
Field Specific Conductance
S/cm
1,092
1 1,010
1,279
2,236
1 2,236
1 1,549
767
920
1 5,925
1 823
1 1,897
1 2,177
1 274
1 355
1,372
Total VOCs with 2L Exceedances (in at least one location)l 23.2 1 16.8 1 39.1 1 95.8 1 95.5 1 4.7 1 0.9 1 0.4 1 0.0 1 14.6 1 7.4 1 88.9 1 0.6 1 0.0 1 0.9
Total VOCs with 2L Exceedances (in at least one location excluding 1,4-dioxane)l 21.7 1 12.1 1 8.9 1 14.4 1 14.2 1 4.7 1 0.9 1 0.0 1 0.0 1 5.7 1 0.0 1 22.8 1 0.0 1 0.0 1 0.0
Notes:
1. Only detected constituents are included in the table.
2. Values with a J qualifier (shown in itallics) were estimated because the detections were above the MDL but below the EQL (which is being represented by the laboratory RL).
3. Values exceeding the NC 2L standard are displayed in bold and shaded gray.
4. Values are not considered exceedances if values are not above respective NC 2L Standards when rounded to the same decimal precisions as the respective NC 2L Standards.
5. Blank table entries indicate that the constituent was either not sampled (in the case of iron and manganese) or not detected above the MDL. Refer to analytical reports for information on which analyses were performed.
6. NC 2L standards were obtained from NCDEQ Solid Waste Section on 25 April 2023. (https://deq.nc.gov/about/divisions/waste-management/prograrn-guidance/solid-waste-section/environmental-monitoring).
EPA - Environmental Protection Agency
SIM - Selected Ion Monitoring
MDL - Method Detection Limit
EQL - Estimated Quantitation Limit
RL - Reporting Limit
NC 2L - Title 15A of the North Carolina Administrative Code, Subchapter 2L Standards
MCL - Maximum Contaminant Level (National Primary Drinking Water Regulations)
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 7
Summary of Mann -Kendall Trend Analysis for VOCs
Former York Road Landfill
Charlotte, North Carolina
Well
Constituent
Mann -Kendall Trend
No. of Points
DDW-01
1, 1 -dichloroethane
Up
35
DDW-01
Tetrachloroethene
Down
35
DDW-01
Trichloroethene
Up
35
DDW-01A
Trichloroethene
Up
31
DDW-01A
Vinyl chloride
Up
31
DDW-02
1, 1 -dichloroethane
Down
31
DDW-03
1,2-dichloropropane
Down
34
DDW-03
Vinyl chloride
Down
34
DMW-01
Vinyl chloride
Down
34
DMW-06
1,2-dichloropropane
Down
35
DMW-06
1,4-dichlorobenzene
Up
35
DMW-06
ITrichloroetbene
I Down
1 35
DMW-06
IVinyl chloride
I Down
1 35
No. Downward Trends:
8
No. Upward Trends:
5
No. No Trend:
0
Notes:
1. Trends are reported at 95% confidence interval.
2. Analysis was performed on volatile organic compound (VOC) constituents
with concentrations above the 2L Standard in March 2023.
3. Analysis included data collected since March 2008.
4. To avoid the effect of changing method detection limits, non -detects were
replaced by zero (USEPA Unified Guidance, March 2009).
5. Only datasets with greater than 50% detections were analyzed.
6. Trend analyses were implemented using the EarthScience Information
System Esdat Version 5.1.58.
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 8
March 2023 Detected Constituents in Surface Water
Former York Road Landfill
Charlotte, North Carolina
Location
NT-1
NT-2
SC-1
SC-2
ST-1
ST-3
Sample Date
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
3/28/2023
Method
Constituent
Units
EQL
NC 2B
MCL
EPA
Barium
µg/L
2
1,000 a
2,000
189
31
24.6 26 64
41.2
6020B
Chromium (III+VI)
µg/L
2
11 b
100
3.0
-
- - -
3.7
EPA
Acetone
µg/L
25
3,100 a
-
10.5J
-
- - -
-
8260D
Toluene
/L
1
11 b
1,000
2.3
-
- - -
-
EPA
8260D by
SIM
1,4-Dioxane
µg/L
1
0.35 a
-
-
0.66J 0.1
-
0.71J
Temp
°C
-
-
-
18.4
17.9
18.9 18.8 18.3
16.0
Field
pH (Field)
SU
-
-
-
7.12
7.02
7.88 7.48 7.50
7.36
Field Specific Conductance
S/cm
-
-
-
224.7
200.2
752 740 620
233.1
Notes:
1. Only detected constituents are included in the table.
2. Values exceeding the NC 2B standard are displayed in bold and shaded gray.
3. Values with a J qualifier were estimated because the detections were above the MDL but below the EQL (which is being represented by the laboratory RL).
4. Blank table entries indicate that the constituent was not detected.
5. NC 2B standards were obtained from NCDEQ Water Resources Planning Section:
(https://www.deq.nc.gov/about/divisions/water-resources/water-planning/classification-standards/surface-water-standards) on 13 April 2023.
EPA - United States Environmental Protection Agency
SIM - Selected Ion Monitoring
EQL - Estimated Quantitation Limit
RL - Reporting Limit
MCL - Maximum Contaminant Level (National Primary Drinking Water Regulations)
µg/L - Micrograms per liter
µS/cm - Microsiemens per centimeter
SU - Standard Units
a - Water supply standard
b - Freshwater aquatic life standard for chronic exposure
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

Table 9
Proposed Groundwater and Surface Water Sampling Schedule
Former York Road Landfill
Charlotte, North Carolina
Sample
Sample Type
VOCs
(EPA 8260)
RCRA
Metals
(EPA 6020 &
7470
Total Iron &
Manganese
(EPA 6020)
1 4-Dioxane
(EPA
8260SIM)
PFAS (EPA
1633)
Field
Parameters
Water
Level
Field Blank
Blank
A
A
A
A
A
Trip Blank
Blank
A
A
A
DDW-01
Ground Water
A
A
A
A
A
A
A
DDW-01A
Ground Water
A
A
A
A
A
A
DDW-02
Ground Water
A
A
A
A
A
A
DDW-03
Ground Water
A
A
A
A
A
A
DDW-03A
Ground Water
A
A
A
A
A
A
DDW-05
Ground Water
A
DDW-06
Ground Water
A
DMW-01
Ground Water
A
A
A
A
A
A
A
DMW-02
Ground Water
A
A
A
A
A
A
A
DMW-02A
Ground Water
A
A
A
A
A
A
DMW-02B
Ground Water
A
A
A
A
A
A
DMW-05
Ground Water
A
A
A
A
A
A
A
DMW-06
Ground Water
A
A
A
A
A
A
A
DMW-08
Ground Water
A
A
A
A
A
A
A
DMW-09
Ground Water
A
DMW-A
Ground Water
A
A
A
A
A
A
A
DMW-B
Ground Water
A
Duplicate
Ground Water
A
A
A
A
A
A
YRW-06A
Ground Water
A
YRW-07
Ground Water
A
YRW-10C
Ground Water
A
A
A
A
A
A
A
YRW-11B
Ground Water
A
NT-1
Surface Water
A
A
A
A
A
NT-2
Surface Water
A
A
A
A
A
SC-1
Surface Water
A
A
A
A
A
SC-2
Surface Water
A
A
A
A
A
ST-1
Surface Water
A
A
A
A
A
ST-3
Surface Water
A
A
A
A
A
WSW-2
Water Supply Well
None
None
WSW-3
Water Supply Well
None
None
Notes:
1. EPA - Environmental Protection Agency
2. RCRA - Resource Conservation and Recovery Act
3. VOCs - volatile organic compounds
4. PFAS - per and poly-fluoroalkyl substances
5. A - Annual frequency (fall)
6. Field parameters include conductivity, pH, and temperature.
7. RCRA metals include arsenic, barium, cadmium, chromium, lead, mercury, selenium, and silver.
8. One trip blank should be included with every sample shipment.
9. * indicates that water supply well was permanently abandoned by others on 21 September 2022.
CAR230086 Page 1 of 1 Geosyntec Consultants of NC, P.C.

FIGURES

�e
_ y0 O 0 e�0
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ork
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1983-1984 C LANDFILL AREA B
/ 1974-1980
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1972-1976 / I� �1si�_
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c
eso. .;
SCALE IN FEET 2E ,,
REFERENCES: SITE LOCATION MAP
1. PROPERTY LINES OBTAINED FROM MECKLENBURG FORMER YORK ROAD LANDFILL
COUNTY GIs. CHARLOTTE, NORTH CAROLINA
2. U.S.G.S. 7.5 MINUTE QUADRANGLE CHARLOTTE WEST, �ie05YCltec
DATED 2019.
consultants Figure:
3. APPROXIMATE WASTE BOUNDARY OBTAINED FROM EM csKca�wwnuora r..
MAPPING PERFORMED BY GEO SOLUTIONS, LTD,
OBTAINED 23 OCT 2017 AND HISTORICAL DRAWINGS. CHARLOTTE, NC AUGUST 2023

\\CHARLOTTE-01\DATA\CADD\_PROJECTS\C\CITY OF CHARLOTTEWORK ROAD LANDFILL\CORRECTIVE ACTION EVALUATION REPORT (GC5699H.01)\DRAWINGS\SHEETS\GC5699F002.DWG (24 July 2023) mjerome
n
SC-1
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UA
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e F— I
LANDFILL AREA F
1984-1986
JOHN
A CROSLAND tij£=i''`'
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NEB-PZ 1*
L
NEB-PZ-2 NORTHEAST
ABOUNDARY
EXTRACTION
LANDFILL �+ '� ' SYSTEM�
AREA D
1980-1983 NEB-PZ-3
ST-3
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YRW-07 O �.r ,.:rr�• . _ , •;�'1"1'rs
� O f �•t..r
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'4 CLUBHOUSE .• . • �r h .
LANDFILL
r
AREA B r-;No 01
i + r
1974-1980
LANDFILL r �r A' • r'
YRW-10C
AREA E
•.� re •: <
1983-1984
RENAISSANCE
YRW-09A y MAINTENANCE -
LANDFILL
DDW-X01A AREA DMW-08 .•°f:- BUILDING
DDW-01 1968-1972' '
�r
YRW-08A
DMW 05 .DDW-02 O `
LANDFILL DMW 01�
AREA C
+_; � >✓ fir.. p �-�� •-F
1972-1976 c
LEATHERMAN
MAINTENANCE BUILDING
YRW-06A -
DDW-03AST-1
DMW-02A
O
DMW 06 DDW-03 O DMW-02 DMW-02B
SC-2V-1
- t
o�
" I r r• WSW-2
WSW-3
LEGEND REFERENCES
APPROXIMATE PROPERTY BOUNDARY
STREAM
GROUNDWATER COMPLIANCE
BOUNDARY (NOTE 5)
SHALLOW MONITORING WELL
(SCREEN <25 ft BGL)
INTERMEDIATE MONITORING WELL
(SCREEN 25-65 ft BGL)
DEEP MONITORING WELL
(SCREEN >65 ft BGL)
STREAM SAMPLE LOCATION
• WATER SUPPLY WELL (NOTE 7)
❑ PIEZOMETER
.s
r'.�:a ���,�'� ram. 4-.rti �,' R .dY• ••�,'�..! - '.�;'�• `.+�:- ..;�.
`r
� �� fir"• �"w'
.! i'`aYI.s1
4.4
1. AERIAL PHOTOGRAPHY OBTAINED FROM
NEARMAP, DATE OF PHOTOGRAPHY JANUARY
27, 2023.
2. PROPERTY LINES OBTAINED FROM
MECKLENBURG COUNTY GIS.
3. WELL AND MONITORING LOCATIONS
APPROXIMATED FROM DRAWINGS PREPARED
BY HDR.
4. STREAM LOCATIONS FROM MECKLENBURG
COUNTY GIS, NORTH CAROLINA OPEN
MAPPING WEBSITE, 20141014, CREEKS AND
STREAMS.
5. THE GROUNDWATER COMPLIANCE BOUNDARY
IS DEFINED AS 500 FEET FROM THE WASTE
BOUNDARY, OR THE PROPERTY BOUNDARY,
WHICHEVER IS CLOSEST.
6. APPROXIMATE WASTE BOUNDARY OBTAINED
FROM EM MAPPING PERFORMED BY GEO
SOLUTIONS, LTD, OBTAINED 23 OCT 2017 AND
HISTORICAL DRAWINGS.
7. WATER SUPPLY WELLS WERE PERMANENTLY
ABANDONED BY OTHERS ON 21 SEPTEMBER
2022.
0 600' 1200'
SCALE IN FEET
SITE PLAN
FORMER YORK ROAD LANDFILL
CHARLOTTE, NORTH CAROLINA
Geosyntec°
consultants Figure
CHARLOTTE, NC AUGUST 2023

\\CHARLOTTE-01\DATA\CADD\_PROJECTS\C\CITY OF CHARLOTTE\YORK ROAD LANDFILL\CORRECTIVE ACTION EVALUATION REPORT (GC5699H.01)\DRAWINGS\SHEETS\GC5699F003.DWG (21 August 2023) mjerome
pqa
Im
� 6
DMW-B
1 (592.41)
'. r
S90
` S8
' I O
i
'YRW-10C
(575.89)
iAr 4
`r i9"01ADDW46
(578.76)
i 4DDW-01 \
LANDFILL
AREA E
1983-1984
'6-07_/°u (611.71)
(578.37),
1y t i ryn,:Hy, DMW-05 LANDFILL
(576.03) AREA C
1972-1976
LANDFILL
AREA B
1974-1980
a � �
DMW-A��� "}
/r(644.04t 4
110
• t
YRW-11 B
(596.93)
I
LANDFILL ,
AREA A
1968-1972
/ DDW-05 ,
�(596.70)
DMW-09
(596.89)
61
O
\
DMW-080000'
(614.21)
r
DDW-02 � YRW-06A o
(575.97) (578.74) DMW-01 o
04
(593.76)01
DDW-03A CP DMW-02A * '
,( ) "
594.26
�DMW-02
I i DMW-02B
w d (590DDW.81)
-03
(589.22)
•�f r s�`! X' (574.52)
, K��� (575.33)
.rar .Ir�a rY t{ d Ky
—_.. ",A JY.+F+-IN►' &.._� j. r r r ' - 3�7.
_ I Nr J"T M ! 4.1g�•,,}, �p,7w' k �I;;dgr, X "^,y I�„- 1, 'i�-c, ..
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OWN
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�Y.
.1-
^WSW-3 � � .e _ ara W 1r ':���' '� x�sr �4 � ,� M tt„ �r•. +�gi�1.`
:.r !"`= ;.� F, s a ai(:+r'�•' .rye .'L. +4: � 1'L ,' i N; . r a d �` ' l �Jr � `�� J � s �y �'%�i g � •� ' a^�. � `�. ,f'
LEGEND REFERENCES
APPROXIMATE PROPERTY BOUNDARY 1. AERIAL PHOTOGRAPHY OBTAINED FROM 7. FLOW DIRECTION WEST OF SUGAR CREEK
NEARMAP, DATE OF PHOTOGRAPHY FROM HART & HICKMAN, 2023.
STREAM (NOTE 5) JANUARY 27, 2023.
(575.33) GROUNDWATER ELEVATION (FT. NGVD) 2. PROPERTY LINES OBTAINED FROM
MECKLENBURG COUNTY GIS.
GROUNDWATER CONTOUR
3.
WELL AND MONITORING LOCATIONS
0 600' 1200'
APPROXIMATED FROM DRAWINGS PREPARED
GROUNDWATER FLOW DIRECTION
BY HDR.
SCALE IN FEET
SHALLOW MONITORING WELL
4.
STREAM LOCATIONS FROM MECKLENBURG
(SCREEN <25 ft BGL)
COUNTY GIS, NORTH CAROLINA OPEN
UNCONSOLIDATED POTENTIOMETRIC
MAPPING WEBSITE, 20141014, CREEKS AND
SURFACE MAP 2 MARCH 2O23
INTERMEDIATE MONITORING WELL
STREAMS.
(SCREEN 25-65 ft BGL)
5.
APPROXIMATE WASTE BOUNDARY OBTAINED
FORMER YORK ROAD LANDFILL
FROM EM MAPPING PERFORMED BY GEO
CHARLOTTE NORTH CAROLINA
DEEP MONITORING WELL
SOLUTIONS, LTD, OBTAINED 23 OCT 2017 AND
r
(SCREEN >65 ft BGL)
HISTORICAL DRAWINGS.
GeosyCitec
6.
WATER SUPPLY WELLS WERE PERMANENTLY
• WATER SUPPLY WELL
ABANDONED BY OTHERS ON 21 SEPTEMBER
consultants
2022.
GeoWntec Consultants of NC, P.C.
* INDICATES BEDROCK WELL WAS NOT
USED FOR CONTOURING
CHARLOTTE, NC
AUGUST 2023
Figure:
3

\\CHARLOTTE-01\DATA\CADD\_PROJECTS\C\CITY OF CHARLOTTE\YORK ROAD LANDFILL\CORRECTIVE ACTION EVALUATION REPORT (GC5699H.01)\DRAWINGS\SHEETS\GC5699F004A.DWG (21 August 2023) mjerome
IN
IN
v OAij
<9 i
DDW-06{
Gt4sv__'3
YRW-10C
03/28/2023
IRON
117,000
MANGANESE
1,230
i
/ LANDFILL
AREA E
1983-1984
Y. YRW-10(-,�l
(0.92)
YRW-09A
�. DDW 01A
k DDW-01
._ YRW-08A
05 `
(7.40) DDW-02
LANDFILL
DMW-05
03/28/2023
IRON
10,000
MANGANESE
3,570
1,4-DIOXANE
7.4
AREA C
1972-1976
w r a DDW-03A
DMW-06�
(88 93)
DMW-A,.
03/28/2023
\ a,
NO EX
CEEDANCES fDM4 W � �ta
00
.0t,k NN
LANDFILL AREA F LANDFILL
1984-1986 AREA D
� 3
LANDFILL
AREA B
1974-1980
1980-1983
/
DDW-05
YRW-•111BB� DMW-09
LANDFILL
AREA A
1968-1972
4 �
IMW-08
V
0 ' . r ✓+
II O ar{
DDW-03 �
t r
r (95.83)
WSW-2
RW-0
/ � s4
/W-01
DMW-02
03/28/2023
IRON 3,84
MANGANESE 2,95
DMW-02
(0.38)
.
f13 F,
%,
7.
'►'it WSW-3
i11_ 7
(VOTES LEGEND
1. TOTAL VOLATILE ORGANIC COMPOUND (VOC) CONCENTRATIONS APPROXIMATE PROPERTY BOUNDARY
BASED ON SUMMATION OF VOCS WITH CONCENTRATIONS ABOVE
THE NORTH CAROLINA ADMINISTRATIVE CODE SUBCHAPTER STREAM
2L.0202 STANDARDS IN ONE OR MORE WELLS IN MARCH 2O23.
2. INFERRED 5 MICROGRAM PER LITER (lag/L) PLUME BOUNDARY 5 lag/L ISOCONCENTRATION LINE
BASED ON LOCATION OF WASTE, WELLS BELOW 5 lag/L VOCS OF (DASHED WHERE INFERRED)
CONCERN IN MARCH 2O23, AND HYDRAULIC DIVIDE AT SUGAR
CREEK.
3. RESULTS SHOWN IN MICROGRAMS PER LITER (lag/L).
4. NC 2L - TITLE 15A OF THE NORTH CAROLINA ADMINISTRATIVE
CODE, SUBCHAPTER 2L STANDARDS.
5 ONLY DETECTED CONSTITUENTS ABOVE NC 2L STANDARDS ARE
SHOWN. DETECTIONS WERE CONSIDERED NOT ABOVE 2L
STANDARDS WHEN REPORTED CONCENTRATION PRECISIONS
WERE ROUNDED TO PRECISIONS OF RESPECTIVE CONSTITUENT
NC 2L STANDARDS.
6 STREAM LOCATIONS FROM MECKLENBURG COUNTY GIS, NORTH
CAROLINA OPEN MAPPING WEBSITE, 20141014, CREEKS AND
STREAMS.
7. FOR FULL LEGEND AND REFERENCES, SEE FIGURE 2.
8. WATER SUPPLY WELLS WERE PERMANENTLY ABANDONED BY
OTHERS ON 21 SEPTEMBER 2022.
DMW-06
03/28/2023
1,2-DICHLOROPROPANE
2.5
1,4-DICHLOROBENZENE
7.6
1,4-DIOXANE
66.1
MANGANESE
252
TRICHLOROETHENE
4.4
VINYL CHLORIDE
3.3
DMW-01
3/30/2022
1,1-DICHLOROETHANE
6.0
1,2-DICHLOROETHANE
0.4
1,2-DICHLOROPROPANE
0.6
1,4-DICHLOROBENZENE
6.0
1,4-DIOXANE
3
BARIUM
700
BENZENE
1.0
CADMIUM
2.0
IRON
300
LEAD
15
MANGANESE
50
TRICHLOROETHENE
3.0
TETRACHLOROETHENE
0.7
VINYL CHLORIDE
9.03
DDW-03
03/28/2023
1,2-DICHLOROPROPANE
2.5
1,4-DIOXANE
81.4
VINYL CHLORIDE
3.3
MONITORING WELL I.D.
SAMPLE DATE
0 600' 1200'
SCALE IN FEET
PLUME MAP
SAPROLITE
FORMER YORK ROAD LANDFILL
CHARLOTTE, NORTH CAROLINA
Geosyntec
Figure:
consultants
Geosyntec ConsultantsoMC P.C.
9. 'J' INDICATES CONCENTRATION IS ESTIMATED AS IT WAS NC 2L 4A
DETECTED BELOW THE ENVIRONMENTAL QUANTITATION UNIT. EXCEEDANCE CRITERIA CHARLOTTE, NC AUGUST 2023

\\CHARLOTTE-01\DATA\CADD\_PROJECTS\C\CITY OF CHARLOTTE\YORK ROAD LANDFILL\CORRECTIVE ACTION EVALUATION REPORT (GC5699H.01)\DRAWINGS\SHEETS\GC5699F004B.DWG (21 August 2023) mjerome
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1983-1984
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40)
DMW-05
03/28/2023
IRON
10,000
MANGANESE
3,570
1,4-DIOXANE
7.4
LANDFILL
\ AREA C
1972-1976
DDW-02_/
(3910) DDW-03A�
DMW-06
At
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hrd
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..';;." X t� _.A# •_ Grp^ a v - C @'• k' '0R„�; • r .. •+"'°! #R.\.k+'a :.FI
t,;. ,�,:r�-"` r,ra,...,,% �( .. �:?"S r, ;',4t •t pt.1' t, "''t, q
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50 �.y
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�WSW-3PI`"�} ,"�'.,+ �'r,, k,. 'i ff� wr, r• 1•' S7 rA9�1L,7C:Fw't,Ml
(VOTES LEGEND
1. TOTAL VOLATILE ORGANIC COMPOUND (VOC) CONCENTRATIONS APPROXIMATE PROPERTY BOUNDARY
BASED ON SUMMATION OF VOCS WITH CONCENTRATIONS ABOVE
THE NORTH CAROLINA ADMINISTRATIVE CODE SUBCHAPTER STREAM
2L.0202 STANDARDS IN ONE OR MORE WELLS IN MARCH 2O23.
2. INFERRED 5 MICROGRAM PER LITER (IJg/L) PLUME BOUNDARY 5 Ng/L ISOCONCENTRATION LINE
BASED ON LOCATION OF WASTE, WELLS BELOW 5 lag/L VOCS OF (DASHED WHERE INFERRED)
CONCERN IN MARCH 2O23, AND HYDRAULIC DIVIDE AT SUGAR
F, {Q!#�•�Idf! ,� � �: :;:;°2uk,+.t�,tnr�'ar+`;d.•f�:i..y'�y
s '
[ /
DMW A° i
F r
�
2
LANDFILL AREA F LANDFILL
1984-1986 AREA D
1980-1983
*-YRW-07 ,
/
i
DDW-05
YRW-11 Bh� DMW-09 \
LANDFILL
AREA B
1974-1980
es '
—� rJA�
DMW-01
03/28/2023
CADMIUM
44.5
IRON
16,100
MANGANESE
665
VINYL CHLORIDE
0.93J
DDW-02
03/28/2023
1,1-DICHLOROETHANE
8.9
1,4-DIOXANE
30.2
4. NC 2L - TITLE 15A OF THE NORTH CAROLINA ADMINISTRATIVE
CODE, SUBCHAPTER 2L STANDARDS.
5 ONLY DETECTED CONSTITUENTS ABOVE NC 2L STANDARDS ARE
SHOWN. DETECTIONS WERE CONSIDERED NOT ABOVE NC 2L
STANDARDS WHEN REPORTED CONCENTRATION PRECISIONS
WERE ROUNDED TO PRECISIONS OF RESPECTIVE CONSTITUENT
NC 2L STANDARDS.
6 STREAM LOCATIONS FROM MECKLENBURG COUNTY GIS, NORTH
CAROLINA OPEN MAPPING WEBSITE, 20141014, CREEKS AND
STREAMS.
7. FOR FULL LEGEND AND REFERENCES, SEE FIGURE 2.
8. WATER SUPPLY WELLS WERE PERMANENTLY ABANDONED BY
OTHERS ON 21 SEPTEMBER 2022.
/0001�
�1 /
DMW-01
(0.93) �'
IRW 06A r• '.pMW 02B3 �, < `A';:„'.
yrF ! Or 1Yf;
DM -02A :., .�, V D
DMW-02J
(0.38)
DDW-03
4 r 'v
DDW-03
03/28/2023
1,2-DICHLOROPROPANE
2.5
1,4-DIOXANE
81 .4
VINYL CHLORIDE
3.3
DMW-01
3/30/2022
1,1-DICHLOROETHANE
6.0
1,2-DICHLOROETHANE
0.4
1,2-DICHLOROPROPANE
0.6
1,4-DICHLOROBENZENE
6.0
1,4-DIOXANE
3
BARIUM
700
BENZENE
1.0
CADMIUM
2.0
IRON
300
LEAD
15
MANGANESE
50
TRICHLOROETHENE
3.0
TETRACHLOROETHENE
0.7
VINYL CHLORIDE
0.03
9. 'J' INDICATES CONCENTRATION IS ESTIMATED AS IT WAS NC 2L
DETECTED BELOW THE ENVIRONMENTAL QUANTITATION UNIT. EXCEEDANCE CRITERIA
DMW-02
03/28/2023
IRON
3,840
MANGANESE
2,950
0 600' 1200'
SCALE IN FEET
PLUME MAP
PWR
FORMER YORK ROAD LANDFILL
CHARLOTTE, NORTH CAROLINA
Geosyntec
Figure:
consultants
Geosyntec Consultants of NC, P.C. 4 B
CHARLOTTE, NC AUGUST 2023

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1-�O DMW AAr�
•.
f
4
'• LANDFILL AREA F LANDFILL
1984-1986 AREA D
19 0- 983
afi x
YRW-07
DMW-B
DDW-06{ .:
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LANDFILL
AREA E
+✓ .
1983-1984
• Y
r.% DDW-01 A
16.81) LANDFILL / Q.. 09A YRW ,,
DDW-01A �- AREA A DMW 08
03/28/2023 1968-1972
BENZENE 2.0
1,4-DIOXANE 4.7 \ t'
TRICHLOROETHENE 3.6
YRW-08A /
VINYL CHLORIDE 1.5
,DMW-05
DDW-01 DM
DDW-02 / W-01 DMW-02B
03/28/2023
(2320) ` LANDFILL AREA 1,2-DICHLOROETHANE 0.51J t
s;
DDW-01
1972-1976 1,4-DIOXANE 8.9
03/28/2023
1,1-DICHLOROETHANE 7.3 YRW 06A DMW-02
w 1,2-DICHLOROPROPANE 0.87J DDW 03A , p
70)
IRON 386 a'+ DMW-02A
TETRACHLOROETHENE 6.1 / DMW-02B� (0.00) p
TRICHLOROETHENE 5.0 DDW-03A y \/ (14.63)
i, VINYL CHLORIDE 1.8
03/28/2023 DMW-06' off.
r+M BENZENE a.7 DMW-02A
03/28/2023
.r DDW-03,
L
BARIUM 1,090
¢
LEAD 187
�,- k}?t{y0 _ ,.1ggJ ni.., m•'$I,"`� +.[ 4j;g ,+;•.J 47i:
R♦.. �k� !
p ia
f � WSW-2
WSW-3, cf' {�" ,� k`. A -ly i :, �'•s '^T°�°n ,�
(VOTES LEGEND
1. TOTAL VOLATILE ORGANIC COMPOUND (VOC) CONCENTRATIONS APPROXIMATE PROPERTY BOUNDARY
BASED ON SUMMATION OF VOCS WITH CONCENTRATIONS ABOVE
THE NORTH CAROLINA ADMINISTRATIVE CODE SUBCHAPTER STREAM
2L.0202 STANDARDS IN ONE OR MORE WELLS IN MARCH 2O23.
2. INFERRED 5 MICROGRAM PER LITER (IJg/L) PLUME BOUNDARY 5 Ng/L ISOCONCENTRATION LINE
BASED ON LOCATION OF WASTE, WELLS BELOW 5 lag/L VOCS OF (DASHED WHERE INFERRED)
CONCERN IN MARCH 2O23, AND HYDRAULIC DIVIDE AT SUGAR
CREEK.
3. RESULTS SHOWN IN MICROGRAMS PER LITER (Ng/L).
4. NC 2L - TITLE 15A OF THE NORTH CAROLINA ADMINISTRATIVE
CODE, SUBCHAPTER 2L STANDARDS.
5 ONLY DETECTED CONSTITUENTS ABOVE NC 2L STANDARDS ARE
SHOWN. DETECTIONS WERE CONSIDERED NOT ABOVE NC 2L
STANDARDS WHEN REPORTED CONCENTRATION PRECISIONS
WERE ROUNDED TO PRECISIONS OF RESPECTIVE CONSTITUENT
NC 2L STANDARDS.
6 STREAM LOCATIONS FROM MECKLENBURG COUNTY GIS, NORTH
CAROLINA OPEN MAPPING WEBSITE, 20141014, CREEKS AND
STREAMS.
7. FOR FULL LEGEND AND REFERENCES, SEE FIGURE 2.
8. WATER SUPPLY WELLS WERE PERMANENTLY ABANDONED BY
OTHERS ON 21 SEPTEMBER 2022.
DMW-01
3/30/2022
1,1-DICHLOROETHANE
6.0
1,2-DICHLOROETHANE
0.4
1,2-DICHLOROPROPANE
0.6
1,4-DICHLOROBENZENE
6.0
1,4-DIOXANE
3
BARIUM
700
BENZENE
1.0
CADMIUM
2.0
IRON
300
LEAD
15
MANGANESE
50
TRICHLOROETHENE
3.0
TETRACHLOROETHENE
0.7
VINYL CHLORIDE
9.03
MONITORING WELL I.D.
SAMPLE DATE
0 600' 1200'
SCALE IN FEET
PLUME MAP
BEDROCK
FORMER YORK ROAD LANDFILL
CHARLOTTE, NORTH CAROLINA
Geosyntec
consultants Figure
Geosyntec ConsulMntsofNC P.C.
9. 'S INDICATES CONCENTRATION IS ESTIMATED AS IT WAS NC 2L 4C
DETECTED BELOW THE ENVIRONMENTAL QUANTITATION UNIT. EXCEEDANCE CRITERIA CHARLOTTE, NC AUGUST 2023

1,1-dichloroethane
10
9
8
7
6
e 5
4
3
2
1
0
18 Mar 08 13 Dec 10 8 Sep 13 4 Jun 16 1 Mar 19 25 Nov 21
Trichloroethene
8
7
6
5
J
4
3
2
1
0
18 Mar 08 13 Dec 10 8 Sep 13 4 Jun 16 1 Mar 19 25 Nov 21
Tetrachloroethene
14
12
10
8
o� 6
4
2
0
18 Mar 08 13 Dec 10 8 Sep 13 4 Jun 16 1 Mar 19 25 Nov 21
Vinyl Chloride
3.5
3
2.5
2
1.5
1
0.5
0
18 Mar 08 13 Dec 10 8 Sep 13 4 Jun 16 1 Mar 19 25 Nov 21
DDW-01
—4&--- DDW-01A
— — —2L Stand and

1,1-dichloroethane
50
40
30
I
20
I
10
0
18 Mar 08 13 Dec 10 8Sep 13 4Jun 16 1Mar 19 25 Nov 21
1,4-dichlorobenzene
30
25
20
e 15
10
5
0
18 Mar 08 13 Dec 10 8Sep 13 4Jun 16 1Mar 19 25 Nov 21
i,o-aicnioropro pane
5
4.5
4
3.5
3
e 2.5
2
1.5
1
0.5
0
18 Mar 08 13 Dec 10 8 Sep 13 4 Jun 16 1 Mar 19 25 Nov 21
Trichloroethene
10
8
6
4
2
0
18 Mar 08 13 Dec 10 8Sep 13 4Jun 16 1Mar 19 25 Nov 21
Vinyl Chloride
to
9
8
7
6
a 5
4
3
2
1
0
18 Mar 08 13 Dec 10 8Sep 13 4Jun 16 1Mar 19 25 Nov 21
$ DDW-02
--E— DDw-03
—� DM1N-01
DMW-06
— — — 2LStandard

APPENDICES

APPENDIX A
Site Current Conditions Photolog

GEOSYNTEC CONSULTANTS
Photographic Record
Geosyntec
consultants
Geowniec Consultnms of NC, P.C.
Client: City of Charlotte
Site Name: York Road Landfill
ICI a p Satellite4e
Renaissance Gulf Course
Project Number:
Site Location:
Ph-'PRenaissance
ark'
Skate Park 4?
r
r
Re nee Dog Park
tiY
r
ha rlotte City Tennis
Ask
ilmer's Commercial
Home services
rr
GC5699H
Renaissance Park, 1536
Charlotte, NC 28217
Ipw 9
The John
Dp� chool
Renaissance
Golf Course -
Renais anti
Park
Renaissance Disc
Golf Park -Gold
Jeff Adams Tennis Center
W Tyvola Rd,
Colliers Engineeri
& Design
9 ..
�. R
4 Veterans Bridge H
Vk Public Storage
Leatherman Golf
Learning Center
oa rd shortcuts Map data . 2023
l e Terms of Use
we
9
York Memoria
York Memori
ti
cnarion�
Church of Chri
- R-6
L
P-
rt a map error
Geosyntec °
consultants
Geos"tec Consultants of NC, P.C.

GEOSYNTEC
CONSULTANTS
Geosyntec°
Photographic Record
consultantsGcosvn[ec Consultants of NC, P.C.
Client: City of
Charlotte
Project Number:
GC5699H
Site Name: York
Road Landfill
Site Location:
Renaissance
Park, 1536 W
Tyvola Rd,
Charlotte,
NC 28217
Photograph 1
Date: 04/21 /2023
Direction: NE
Comments:
Methane Detection
System in
•
Renaissance Park Concession
Stand
�T
Photograph 2
Date: 04/21 /2023
Direction: E
F=
1�
!iL
t t
Comments:
Volleyball courts
in Renaissance
Park
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

GEOSYNTEC CONSULTANTS
Geosyntec°
Photographic Record
`°'lswtailt5
Gcosvn[ec Consultants of NC, P.C.
Client: City of Charlotte
Project Number:
GC5699H
Site Name: York Road Landfill
Site Location:
Renaissance Park, 1536 W
Tyvola Rd,
Charlotte, NC 28217
Photograph 3
`
n+
Date: 04/21 /2023
Direction: W
Comments:
Renaissance Park Concession Stand
l
Photograph 4
Date: 04/21 /2023
Direction: E
Comments:
Northeast Boundary Blower System#
at Renaissance Park
- - � .- �.--_- -L,. yet•—• _ -._ _ �-- - - "`- '' _ ..M1
t _ _ � _ �" -- .T -
•- _ -.-_
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

GEOSYNTEC CONSULTANTS
Geosyntec°
Photographic Record
consultantsGcosvn[ec Consultants of NC, P.C.
Client: City of Charlotte
Project Number:
GC5699H
Site Name: York Road Landfill
Site Location:
Renaissance Park, 1536
W Tyvola Rd,
Charlotte, NC 28217
Photograph 5
'
Date: 04/21 /2023
Direction: E
Comments:
Northeast Boundary Blower System
at Renaissance Park
I
_
4'k I� 1
Kai
lF
s %11%�" L
�ti4it�ti
r
� ■Yt
R
'
J
Photograph 6
f
Date: 04/21 /2023
Direction: E
Comments:
Northeast Boundary Blower System
_
at Renaissance Park
1
i
_ r
� I
I
E_■
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

GEOSYNTEC CONSULTANTS
Geosyntec°
Photographic Record
consultantsGcosvn[ec Consultants of NC, P.C.
Client: City of Charlotte
Project Number:
GC5699H
Site Name: York Road Landfill
Site Location:
Renaissance Park,
1536 W
Tyvola Rd,
Charlotte, NC 28217
Photograph 7
,�
I
_
Date: 04/21 /2023
Direction: NW
Comments:
Methane Detection System Harry
at
--:=_-
L. Jones Sr. golf course
r
4 -
maintenance building
#
I F
-Jt*Ak�k max.
I•Illilrllll11111`IIIIII
Ili' IIIIII.lII'II III
,
K
I
i
�._N
I-
Photograph 8
Date: 04/21 /2023
+
ter.
Direction: SW
Comments:
Leathermans Driving Range
maintenance building (off -site)
;.
S-
T
WN MOLL
• -
-'-
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

GEOSYNTEC CONSULTANTS
Geosyntec°
Photographic Record
consultantsGcosvn[ec Consultants of NC, P.C.
Client: City of Charlotte
Project Number:
GC5699H
Site Name: York Road Landfill
Site Location:
Renaissance Park, 1536
W Tyvola Rd,
Charlotte, NC 28217
Photograph 9
•-
Date: 04/21 /2023
Direction: E
Comments:
Leathermans Driving Range (off -
site)
-;
.4
.tip
_,:
Photograph 10
Date: 04/21 /2023
,.
Direction: S E
comments:
`� '`''FP
Harry L. Jones Sr. Golf Course
Clubhouse Blower System
p
T
I F
6
a
1
i
I
"''1711
4
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

GEOSYNTEC CONSULTANTS
Geosyntec°
Photographic Record
consultantsGcosvn[ec Consultants of NC, P.C.
Client: City of Charlotte
Project Number: GC5699H
Site Name: York Road Landfill
Site Location:
Renaissance
Park, 1536 W
Tyvola Rd,
Charlotte,
NC 28217
Photograph 11
Date: 04/21 /2023
Direction: W
Comments:
i
Harry L. Jones Sr. Golf Course
Clubhouse Blower System
, • x -
-
r;
,r.
r M
1.
1
�
K
r
r
�I
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f
,4
Photograph 12
• 07 28 2023
Date. / /
.
y r I
Direction:
- I
Comments:
Harry L. Jones Sr. Golf Course
/ Y
ki
F
Clubhouse Blower System
'; I
5 ,
f
7. + �� •
_ -
r •t
1 T
i
Geosyntec
consultants
Geosyn[ec Consultants of NC, P.C.

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■ I

APPENDIX B
Boring Logs and
Cross -Sections

0
I
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M
0
11
0
0
0
0
0
0
C
ro
C
Project Number. EO91-014
Site Id: DDW-01A
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
,0///Delta
Environmental
Aconsultant5, Inc..
Contractor. GEOLOGICAL EXPLOR.
Elevation: 585.06'.
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:585.O6'
Date(s):.O5/24/01 — 05/29/01
Conductor Casing:
type: Steel dia: 6.00in fm: 0.00' to: 85.50'
Purpose: Monitoring Well, Deep
Blank Casing:
Dulling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.8' to: 90.00'
Remarks: borehole 12' to 30', 10* to 85.5', 6' to 102'
Screens:
type: Slotted size: 0.01Oirdia: 2.00in fm: 90.00' to:1OO.00'
Annular Fill:
type: Grout fm: 0.00' to: 80.00'
type: Betonite fm: 80.00' to: 88.00'
type: Sand Pack generic fm: 88.00' to:1O2.00'
Well Construction
v
v
c
z
a
o
Material Description
>
a
0
E
3
a
a
v
MP. EL. 585.0
o
d
d
o
O
ML
BOREHOLE = 12
Alluvium: sandy, clayey Sill, brown to dark brown, fine to very fine grained sand.
580
10
CL
Muv= Clay to silly Clay, brown to dark brown.
570
20
SP
Alluvium: Sand, well sorted bluish to greenish grey, saturated. Unconsolidated, very fluid.
Air dull looses in Air
rotary return sand. being lost in sand zone.
560
Formation becomes stiffer, may be beginning of soprorite or partially weathered rock No
cuttings seen, lost in overlying sand zone.
30
— — —
WR
BOREHOLE = 10'
Bedrodc Granitic intrusive rock Becomes more competent with depth.
550
— — —
BR
40 -
540
50
530
Page 1 of 2

0
41
r�
L�
0
X
10
0
0
G
Project Number. E091-014
Site Id: DDW-01A
Delta
�////�
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
Consultontstalnc.
Contractor. GEOLOGICAL IXPLOR.
'
Elevation: 585.06
Consulting firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:585.06'
Date(s):05/24/01 — 05/29/01
Conductor Casing:
type: Steel dia: 6.00in fm: 0.00' to: 85.50'
Purpose: Monitoring Well, Deep
Blank Casing:
Drilling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.8' to: 90.00'
Remarks: borehole 12' to 30', 10* to 85.5, 6' to 102'
Screens:
type: Slotted size: 0.010india: 2.00in fm: 90.00' to:100.00,
Annular fill:
type: Grout fm: 0.00' to: 80.00'
type: Betonite fm: 80.00' to: 88.00'
type: Sand Pack(generic) fm: 88.00' to:102.00'
Well Construction
Z
ppCn
3�
o
Material Description
>
L
a
>
d
E
3
a
t
d
c
c>
520
70
510
80
500
80ROW = 6' AT 85.5'
90
490
100
480
110
470
Page 2 of 2

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A
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0
In
0
0
0
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11
Project Number. E091-014
Site Id: DMW-02A
Delta
A/m/Environmental
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
A Consultants, Inc.
Contractor. GEOLOGICAL ExPLOR.
Elevation: 595.51'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:595.51'
Date(s):05/14/01 — 05/20/01
Conductor Casing:
type: Steel dia: 6.00in fm: 0.00' to: 29.00'
Purpose: Monitoring Well, Intermediate
Blank Casing:
Drilling Method: Hollow Stem Auger/Air Rotary
type: dia: 2.00in fm: —2.0' to: 35.00'
Remarks: Borehole 14" to 20', 10" to 29', 6" to 47"
Screens:
type: Slotted size: 0.010irdia: 2.00in fm: 35.00' to: 47.00'
Annular Fill:
type: Grout fm: 0.00' to: 27.00'
type: Betanite fm: 27.00' to: 33.00'
type: Sand Pack(generic) fm: 33.00' to: 47.00'
Well Construction
v
z
o
0
o
Material Description
O
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o
ca
d
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G
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a
a
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!n
c�
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cn
m
>
c.D
ML
BOREHOLE APPROX. 12
Saprolite: Sandy silt.
590
WR
Boulder (?); Competent granitic rock encountered between 7' and 9'
10
---
WR
Saprolite: Sandy silt with gravel size rock fragments.
Rock fragments become more frequent and larger with depth.
580
Partially weathered rock: Pebble to cobble size rock fragments.
20
BR
BOREHOLE = 10"
Bedrock.
570
30
BOREHOLE = 6"
560
40
550
50
540
Page 1 of 1

E
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e
7
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I
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r_1
8
L.
e
i
Ill
I
L-1
a
r_�
Project Number. E091-014
Site Id: DDW-03A
D e I t a
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
Environmental
Contractor. GEOLOGICAL EXPLOR.
Elevation: 584.70
Consultants, lnc.
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:584.70'
Dote(s):05/30/01 — 06/01/01
Conductor Casing:
type: PVC dia: 6.00in fm: 0,00' to: 85.00'
Purpose: Monitoring Well, Deep
Blank Casing:
Dulling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.8' to:118.00'
Remarks: borehole 12" to 30', 10' to 85', 6' to 133'
Screens:
type: Slotted size: 0.010irdia: 2.DOin fm: 118.00' to:133.00'
Annular Fill:
type: Grout fm: 0.00' to: 106.00'
type: Betonite fm: 106.00' to:115.00'
1 type: Sand Pack(generic) fm: 115.00' to:133.00'
Well Construction
z
Material Description
o
o
a;
o
cl
a
N
MP. EL. 584.7
w
CDo�'c
cn
m
>
co`�
BOREHOLE = 12
Alluvium: sandy silt, brown to dark brown.
580
10
J
CL
Alluvium: silty Clay, Brown to dark brown.
570
20
SP
Alluvium: Sand, well sorted, greenish gray, medium to fine grained.
560
30
— — —
BR
BOREHOLE = 10"
Bedrock: Phoneritic, felsic, igneous rock, granitic in composition.
550
40
540
50
530
Page 1 of 3

0
C
J
I
c
�r
I
0
ro
I
I
I
ro
Ri
Project Number. E091-014
Site Id: DDW-03A
Delta
1///,'A'
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
Contractor. GEOLOGICAL IXPLOR.
Elevation: 584.70'
Consult ntsEnvironmentolnc.
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: `
Measuring Point:584.70'
Date(s):05/30/01 — 06/01/01
Conductor Casing:
type: PVC dia: 6.00in fm: 0.00' to: 85.00'
Purpose: Monitoring Well, Deep
Blank Casing:
Drilling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.8' to:118.00'
Remarks: borehole 12' to 30', 10' to 85, 6' to 133'
Screens:
type: Slotted size: 0.01 Oirdia: 2.00in fm: 118.00' to:133.00'
Annular Fill:
type: Grout fm: 0.00' to:106.00'
type: Betonite fm: 106.00' to:115.00'
Sand Pack(generic) fm: 115.00' to:133.00'
Well Construction
v
z
o
Material Description
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a
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0
t
a
U
cN�
W
O
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IN
m
>
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520
70
510
80
500
BOREHOLE = 6"
90
490
100
480
110
470
Page 2 of 3

0
�I
0-
11
in
In
B
0
e
11
Project Number. E091-014 .
Site Id: DDW-03A
Delta
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
Environ onsultontstc
Inc.
Contractor. GEOLOGICAL EXPLOR.
Elevation: 584.70'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:584.70'
Date(s):05/30/01 — 06/01/01
Conductor Casing:
type: PVC dia: 6.00in fm: 0.00' to: 85.00'
Purpose: Monitoring Well, Deep
Blank Casing:
Dulling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.8' to:118.00'
Remarks: borehole 12" to 30', 10' to 85', 6' to 133'
Screens:
type: Slotted size: 0.010india: 2.00in fm: 118.00' to: 133.00'
Annular Fill:
type: Grout fm: 0.00' to: 106.00'
type: Betonite fm:106.00' to: 115.00'
type: Sand Pack(generic) fm:115.00' to:133.00'
Well Construction
z
-0-3
o
Material Description
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n
>
c�i
d
E
;
a
L
o
C-3
460
130
450
140
440
150
I
l
430
.
160
420
\
170
410
Page 3 of 3

di
it
I
do
0
0
do
P
11
0
I
Project Number: E091-014
Site Id: DMW-02B
1////De I t a
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFILL, CHARLOTTE, NC
Environmental
AConsultants, Inc.
Contractor: GEOLOGICAL EXPLOR.
Elevation: 595.20'.
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:595.20'
Date(s):05/16/01 — 05/18/01
Conductor Casing:
type: PVC dia: 4.00in fm: 0.00' to: 60.00'
Purpose: Monitoring Well, Deep
Blank Casing:
Drilling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.7' to: 74.50'
Remarks: borehole 16" to 13', 10" to 23', 6" to 60', 3"
Screens:
core to 84.5'
type: Slotted size: 0.01 Oindia: 2.00in fm: 74.50' to: 84.50'
Annular Fill:
type: Grout fm: 0.00' to: 70.00'
type: Betonite fm: 70.00' to: 72.50'
type: Sand Pack (generic) fm: 72.50' to: 84.50'
Well Construction
z
0
Material Description
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ML
BOREHOLE APPROX. 16.
Soprofite: Brown to dark Brown, sandy silt.
590
10
BR
BOREHOLE = 10'
580
Bedrock Granitic intrusive rock, competent.
---
BR
20
Weathered zone, Black, fine grained, very triable (easily crushed between fingers).
---
BR
Granitic intrusivg rock, competent.
BOREHOLE = 6
570
30
560
40
550
50
540
Page 1 of 2

I
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I
C
71
I
C
C
Project Number: E091-014
Site Id: DMW-028
AAD e I t a
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD LANDFLL, CHARLOTTE, NC
Consultants, tolnc.
Contractor: GEOLOGICAL EXPLOR.
Elevation: 595.20'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By:
Measuring Point:595.20'
Dote(s):05/16/01 — 05/18/01
Conductor Casing:
type: PVC dia: 4.00in fm: 0.00' to: 60.00'
Purpose: Monitoring Well, Deep
Blank Casing:
Drilling Method: Hollow Stem Auger/Air Rotary
type: PVC dia: 2.00in fm: —1.7' to: 74.50'
Remarks: borehole 16" to 13', 10" to 23', 6" to 60', 3"
Screens:
core to 84.5'
type: Slotted size: 0.010india: 2.00in fm: 74.50' to: 84.50'
Annular Fill:
type: Grout fm: 0.00' to: 70.00'
type: Betonite fm: 70.00' to: 72.50'
type: Sand Pack (generic) fm: 72.50' to: 84.50'
Well Construction
�
Material Description
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adi
avi
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BOREHOLE
Cored from 60 to 84.5'
530
70
520
80
510
90
500
100
490
110
480
Page 2 of 2

A
I
0
0
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711
0
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11
Project Number: E091-014
Site Id: DMW—A
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD AND TYVOLA, CHARLOTTE, NC
ANAC)eltEx
Contractor: GEOLOGICAL EXPLOR.
Elevation: 684.52'
E°"`°°te7m �°�°l'a °`.
E-i"'M �o � t—t
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: MKM
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s): 11/05/92 — 11/05/92
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm:.5' to: 25.00'
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE-CEMENT GROUT fm:.50' to: 20.00'
type: Slotted size: .01Oin dia: 2.00in fm: 25.00' to: 45.00'
type: Bentonite Pellets fm: 20.00' to: 22.00'
Remarks:
type:20-28 TORPEDO SAND fm:22.00' to:45.00'
Well Construction
Material Description
�
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MP. EL. 684.52
W
N
C�
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V1
MIL
SILTY LOAM TOP SOIL, RED -BROWN (CUTTINGS)
680
1
s
SILT WITH MICA AND SOME CLAY, PINK -TAN BLACK MINERALIZATION ALONG
FRACTURES
10
2
e
e
SILT WITH MICA AND SOME CLAY, PINK -TAN -BLACK MINERALIZATION ALONG
FRACTURE, HIGHLY VARIABLE
670
356
7
SILTY WITH MICA AND FINE SAND, SOME CLAY, HIGHLY VARIABLE COLOR,
RED -BROWN -TAN MINERALIZED
20
4
6
E
SILT WITH FINE SAND AND MICA, NUMEROUS REMNANT GRAINS, WEATHERED
TO SILT, HIGHLY MINERALIZED RED -TAN
660
5
6
6
SILT WITH MICA AND FINE SAND — TAN —GRAY HIGHLY VARIABLE COLOR,
NUMEROUS WEATHERED GRAINS
30
6
a
i
SILT WITH FINE SAND AND MICA, GRAY -GRAY, NUMEROUS WEATHER GRAINS
650
S
SILT -TAN -HOMOGENEOUS, SOME FINE SAND
Page 1 of 2

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0
0
0
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11
0
11
0
7
x
n
Project Number: E091-014
Site Id: DMW—A
Project Name: YORK ROAD LANDFILL
Location: YORK ROAD AND TYVOLA, CHARLOTTE, NC
AAAClelta
Contractor: GEOLOGICAL EXPLOR.
Elevation: 684.52'
`°"`°°'°.'`°f ` °°.1°` Caanolte, W Caro.l1..
ina
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: MKM
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s): 11 /05/92 — 11 /05/92
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm:.5' to: 25.00'
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.50' to: 20.00'
type: Slotted size: .01Oin dia: 2.00in fm: 25.00' to: 45.00'
type: Bentonite Pellets fm: 20.00' to: 22.00'
type: 20-28 TORPEDO SAND fm:22.00' to: 45.00'
Remarks:
Well Construction
o
o
Material Description
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8
2
2
SILT WITH BLUE GREEN WEATHERED GRAINS, TAN MATRIX, SOME FINE SAND,
SLIGHT MINERALIZATION
640
9
'
5
SILT WITH MICA AND NUMEROUS SAND LAYERS, MANY GREEN WEATHERED
GRAINS
50
630
60
620
70
610
Page 2 of 2

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it
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A
it
11
0
A
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0
0
Project Number: E091-014
Site Id: DMW-01
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
Aft E)C—Ata
Contractor: Hardin &Huber, Inc.
Elevation: 626.75'
E'nironrnenlol Consultants, Ina.
CMrlolte, North Carolina
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: SSG
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s):11/03/90 — 11/03/90
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm: .2' to: 30.00'
Drilling Method: Hollow Stem Auger/Air Rotary
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.50' to: 23.00'
type: Slotted size: .01Oin dia: 2.00in fm: 30.00' to: 45.00'
type: Bentonite Pellets fm: 23.00' to: 25.00'
type: 20-28 TORPEDO SAND fm: 25.00' to: 45.00'
Remarks: Switched to Air Rotary at 38 feet.
Well Construction
v
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Material Description
C
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MP. EL. 626.55
bL
SILT/CLAY, RED, MICACEOUS, LOW D, LOW PLASTICITY, ORGANICS,
I I
I I
I
I
I
I
I
I
I
I
I
MOTTLED, DRY
1
6
14
0 ppm
I I
I I
I I
I
I
I
I
I
I
I
I
1s
I I
I I
I
I
I
I
I
I
620
I I
I I
I I
I I
I
I
I
I
I
I
I
I
I
I
I
SAPROLITE, MED/FINE GRAINED, GRANULAR, BROWN AND WHITE/GRAY
10
BANDED, MICACEOUS, LOW CLAY, LOW D, NO PLASTICITY, NO COHESION, DRY
2
` ;
is
0 ppm
SAME AS ABOVE — DRY
610
3
's
0 ppm
20
SAPROLITE SAME AS ABOVE — DRY
4
;
0 ppm
38
16
SAME AS ABOVE — DRY, PIECES OF FINE GRAINED/DARK IGNEOUS ROCK —
POSSIBLY DIKE MATERIAL
600
5
's
1 PPm
e
30
SAME AS ABOVE WET/MOIST
6
51 R
7 ppm
BEDROCK, GRANITE TEXTURE, 50% BIOTITE/HORNEBLEND, 50% PLAGIOCLASE,
LOW TO NO FOLIATION, COARSE GRAINED
590
Page 1 of 2

0
it
A
fit
0
0
I
0
0
Project Number: E091-014
Site Id: DMW-01
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
AAA EDO C-- I t 8L
Contractor: Hardin & Huber, Inc.
Elevation: 626.75'
`,wi, `°It
—"' ° he-tte..No h Ce-fi
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: SSG
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s): 11/03/90 — 11/03/90
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm: .2' to: 30.00'
Drilling Method: Hollow Stem Auger/Air Rotary
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.50' to: 23.00'
type: Slotted size:.010in dia: 2.00in fm: 30.00' to: 45.00'
type: Bentonite Pellets fm: 23.00' to: 25.00'
Remarks: Switched to Air Rotary at 38 feet.
type: 20-28 TORPEDO SAND fm: 25.00' to: 45.00'
Well Construction
Material Description
c
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C
3
CD
p
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W
C
U7
m
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-
TD—AIR ROTARY BORING AT 45 FEET
580
50
570
60
560
70
550
Page 2 of 2

0,
0
0
0
0
M
G
x
0
x
0
I
0
Project Number:
Site Id: DMW-02
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
ANA E elta
Contractor: Hardin & Huber, Inc.
Elevation: 597.53'
`°"`°tt,. North `°°aolina' °`
C�°r1oLLe, NOM Carolina
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: SSG
Conductor Casing:
type: Carbon Steel dia: 8.00in fm:.00' to:.50'
Date(s): 11/03/90 - 11/03/90
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm:.2' to: 12.00'
Drilling Method: Hollow Stem Auger/Air Rotary
Annular Fill:
Screens:
type: BENTONITE-CEMENT GROUT fm:.50' to: 5.00'
type: Slotted size: -01Oin dia: 2.00in fm: 12.00' to: 22.00'
type: Bentonite Pellets fm: 5.00' to: 7.00'
type: 20-28 TORPEDO SAND fm: 7.00' to: 22.00'
Remarks: Switched to Air Rotary at 18 feet.
Well Construction
v
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Material Description
Z
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3
a
MP. EL. 597.33
U-1
o
m
ML
SILT/CLAY, RED, MICACEOUS, LOW D, LOW PLASTICITY, MOTTLED, DRY/MOIST
5
0 PPM
590
SAPROLITE, MED/FINE GRAINED, GRANULAR, DARK GRAY TO BROWN,
COMPOSITIONAL BANDS, LOW D, NO PLASTICITY, DRY
10
2
'7
9
19
0.1 PPm
SAME AS ABOVE - FINER GRAINED
3
090
100 ppm
580
51 R
BEDROCK, GRANITE TEXTURE, 50% HORNEBLENDE/BIOTITE, 50% PLAGIOCLASE,
LOW TO NO FOLIATION, COARSE GRAINED
20
TOTAL DEPTH- AIR ROTARY BORING AT 22 FEET
570
i
30
560
Page 1 of 1

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0
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0
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0
0
D
Project Number: E091-014
Site Id: DMW-05
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
delta
An"A.
Contractor: Ground Water Protect
Elevation: 585.59'
North Carolina
Chanotle. N C� fi
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s):09/06/95 — 09/06/95
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm: —2.4' to: 5.00'
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 2.00'
type: Slotted size: .01Oin dia_ 2.00in fm: 5.00' to: 20.00'
type: Bentonite Pellets fm: 2.00' to: 3.00'
Remarks: Soils logged at DDW-02. Field designation is
type: 20-28 TORPEDO SAND fm: 3.00' to: 20.00'
DMW-05A. Rebar lost in original DMW-05.
Well Construction
Material Description
MP. EL. 587.98
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00:
V')
CO
C7
580
10
570
20
560
30
550
Page 1 of 1

0
0
0
I
0
7
0
I
0
0
Project Number: E091-014
Site Id: DMW-06
AAAE>elta
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
Contractor: Ground Water Protect
Elevation: 582.39'
E.A--ld cans hmtl, Ina.
chanolla. Now C—lino
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s): 09/O1 /95 — 09/01 /95
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm: —2.4' to: 19.50,
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 15.00'
type: Slotted size: .01Oin dia: 2.00in fm: 19.50' to: 29.50'
type: Bentonite Pellets fm: 15.00' to: 17.00'
type:20-28 TORPEDO SAND fm: 17.00' to:29.50'
Remarks:
Well Construction
v
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Material Description
MP. EL. 584.76
C
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SC
580
1
;
BROWN/GRAY CLAYEY FINE SAND WITH ORGANICS. WET TO SATURATED.
a
10
2
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WATER POURING FROM SPLIT SPOON. ALTERNATING LAYERS OR GRAY/BROWN
000,SC/CH
3
FAT SILTY CLAY AND GRAY/BROWN CLAYEY FINE TO COARSE SAND.
570
ORGANICS PRESENT, SATURATED, LAST 4" —SP— POORLY SORTED GRAY FINE
SAND, LITTLE TO FINE, NONPLASTIC
3
3
SP
LIGHT GRAY POORLY SORTED FINE MEDIUM SAND. LITTLE TO NO FINES.
3
20
4
z
3
SP
AS ABOVE
560
30
550
Page 1 of 1

a
0
0
0
0
0
0
I
0
0
11
0
0
no
Project Number: E091-014
Site Id: DMW-08
Project Nome: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
Aft�elta
Gnmlotte, North (,° It"t
Chmlott, "" C°"a'"°°I°' °`
Contractor: Ground Water Protect
Elevation: 670.69'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s):08/28/95 — 08/28/95
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm:.2' to: 47.00'
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 43.00'
type: Slotted size:.O10in dia: 2.00in fm: 47.00' to: 62.00'
type: Bentonite Pellets fm: 43.00' to: 45.00'
Remarks:
type:20-28 TORPEDO SAND fm:45.00' to: 70.00'
Well Construction
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Material Description
p
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MP. EL. 670.48
o
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In
670
ML
1
6
TAN/BLACK/WHITE/ORANGISH BROWN FINE SANDY SILT. NONPLASTIC.
EXHIBITS RELIC STRUCTURE/FOLIATION, MICACEOUS - MOIST
660
10
2
s
6
6
ML
AS ABOVE, NON -PLASTIC, RELIC STRUCTURE
3
55 7
ML
AS ABOVE. FOLIATION HAS BEEN ROUGHLY 45 DEGREES FROM HORIZONTAL
6
650
20
4
e
9
ML
AS ABOVE
5
'
y
13
ML
AS ABOVE
30
6
6
ML
640
4
15
AS ABOVE
7
24
ML
AS ABOVE
25
Page 1 of 2

0
0
11
0
0
a
a
0
I
0
0
0
I
Project Number: E091-014
Site Id: DMW-08
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
AAA�elte
CnaAolte. Norttl Carolina
. No C 1m,
Contractor: Ground Water Protect
Elevation: 670.69'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: dia:.00in fm:.00' to:.00'
Date(s):08/28/95 — 08/28/95
Purpose: Monitoring Well, Shallow
Blank Casing:
type: PVC dia: 2.00in fm: .2' to: 47.00'
Drilling Method: Hollow Stem Auger
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 43.00'
type: Slotted size:.Ol0in dia: 2.00in fm: 47.00' to: 62.00'
type: Bentonite Pellets fm: 43.00' to: 45.00'
Remarks:
type:20-28 TORPEDO SAND fm:45-00' to:70.00'
Well Construction
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Material Description
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V)
630
834
53
RRST 20" AS ABOVE, LAST 4° WHITE TO GRAY, VERY DENSE
9
sz'e/r
M
AS ABOVE TO PARTIALLY WEATHERED DIORITE(?). DO NOT SEE ANY QUARTZ
FRAGMENTS. MOIST
50
620
60
610
70
600
Page 2 of 2

0
A
I
0
0
0
1
0
7
11
0
I
Project Number: E091-014
Site Id: DDW-01
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
AAACoelta
E� '. e, ° "L°n `°N°M G°lin. °� H.M °` Ch.,1.
Contractor: Ground Water Protect
Elevation: 583.36'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: John McCrea
Conductor Casing:
type: PVC dia: 6.00in fm:.00' to: 38.75'
Date(s): 09/07/95 — 09/08/95
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.1' to: 45.00,
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 41.00'
type: Slotted size: .01Oin dia: 2.00in fm: 45.00' to: 60.00'
type: Bentonite Pellets fm: 41.00' to: 43.00'
type: 20-28 TORPEDO SAND fm: 43.00' to: 60.00'
Remarks: Soils logged at DMW-06.
Well Construction
Material Description
MP. EL, 585.49
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UN
.
ML
580
1
;
9
RED BROWN CLAYEY SILT, FIRM, DRY —MOIST, LOW TO MEDIUM PLASTICITY
10
2
s
4 ppm
CL
LIGHT GRAY CLAY WITH OXIDIZED ZONES (MOTTLED APPEARANCE) FIRM,
MEDIUM PLASTICITY, MOIST
570
3
3
4 ppm
CL
GRAY SILTY CLAY, AS ABOVE; OVER LIGHT GRAY CLAYEY SAND, WET,
3
MEDIUM GRAINED
20
q
;
2.5 ppm...
SP
GRAY, FINE —MEDIUM GRAINED SAND, WET
560
5
8
6.2 ppm.
SP
AS ABOVE OVER PARTIALLY WEATHERED ROCK, MICACEOUS, GRAY/DARK
A
GREEN, SOME OXIDATION, ONE UNWEATHERED VEIN
30
BEDROCK
550
Page 1 of 2

I
a
0
if
0
A-
0
0
0
0
0
J1
Project Number: E091-014 _
Site Id: DDW-01
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
Aft�Glta
Contractor: Ground Water Protect
Elevation: 583.36'
`°"'°°°"°`°` C° `°Ii,"' °`
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: John McCrea
Conductor Casing:
type: PVC dia: 6.001n fm:.00' to: 38.75'
Date(s): 09/07/95 — 09/08/95
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.1' to: 45.00'
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 41.00'
type: Slotted size:.01 Oin dia: 2.00in fm: 45.00' to: 60.00'
type: Bentonite Pellets fm: 41.00' to: 43.00'
type: 20-28 TORPEDO SAND fm: 43.00' to: 60.00'
Remarks: Soils logged at DMW-06.
Well Construction
v
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Material Description
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CD
ZD
540
50
530
60
— ——
520
70
510
Page 2 of 2

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a
11
J
IJ
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0
0
y
Project Number: E091-014
Site Id: DDW-02
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
AAAC)elta
CnaAotte, NOM Cerdiea
, No � C—lino
Contractor: Ground Water Protect
Elevation: 585.57'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: PVC dia: 6.00in fm:.00' to: 35.00'
Dote(s): 09/05/95 — 09/06/95
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.4' to: 40.00'
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 36.00'
type: Slotted size:.O10in dia: 2.00in fm: 40.00' to: 55.00'
type: Bentonite Pellets fm: 36.00' to: 38.00'
Remarks: Switched to Air Hammer at 30 feet.
type: 20-28 TORPEDO SAND fm: 38.00' to: 55.00'
Well Construction
v
o
Material Description
MP. EL. 587.96
z
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cD
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3
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p
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(n
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p
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CD
(/1
:D
SC
580
1
3
BROWN/DARK GRAY CLAYEY FINE SAND
10
2
z
SC
LIGHT GRAY BROWN CLAYEY FINE SAND, SATURATED
570
3
3
CH
TAN/ORANGISH BROWN/LIGHT GRAY FINE SANDY CLAY, HIGH PLASTICITY,
SATURATED
20
4
e
o
a
SP
TAN/RUST POORLY SORTED FINE TO MEDIUM SAND
560
30
BEDROCK
550
Page 1 of 2

0
0
I
0
0
III
I
0
0
Project Number: E091-014
Site Id: DDW-02
AMA,E)elta
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
E.m,. , North Carolina
C'"`aa'e"'d `aC� U° ' °`
Contractor: Ground Water Protect
Elevation: 585.57'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: PVC dia: 6.001n fm:.00' to: 35.00'
Date(s): 09/05/95 — 09/06/95
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.4' to: 40.00'
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 36.00'
type: Slotted size:.O10in dia: 2.00in fm: 40.00' to: 55.00'
type: Bentonite Pellets fm: 36.00' to: 38.00'
Remarks: Switched to Air Hammer at 30 feet.
type: 20-28 TORPEDO SAND fm: 38.00' to: 55.00'
Well Construction
Material Description
�
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w
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Q::
cn
m
>
c�
540
50
530
60
520
70
510
Page 2 of 2

0
0
0
I
0
x
I
7
x
0
Project Number: E091-014
Site Id: DDW-03
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
AAAE:)elta
Entirorxnenlal ConsAlanle, Inc.,
Chor,olle, Nodh Carolina
Contractor: Ground Water Protect
Elevation: 582.72'
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: PVC dia: 6.00in fm:.00' to: 40.00'
Date(s): 09/05/95 — 09/05/95
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.9' to: 46.00'
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 41.00'
type: Slotted size: .010in dia: 2.00in fm: 46.00' to: 61.00'
type: Bentonite Pellets fm: 41.00' to: 43.00'
Remarks: SOILS LOGGED AT DMW-06
type: 20-28 TORPEDO SAND fm: 43.00' to: 61.00'
Well Construction
MP. EL. 585.59
Material Description
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_—D
580
10
570
20
560
30
AUGER REFUSAL AT 30'
550
Page 1 of 2

0
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0
0
0
rol
0
0
0
0
0
A
Project Number: E091-014
Site Id: DDW-03
Project Name: YORK ROAD LANDFILL
Location: York Road Landfill, Charlotte, NC
Aft [D 4--- 1 t SL
Contractor: Ground Water Protect
Elevation: 582.72'
D"imCah,tt N, `C—fi `9'
le, NOM Colofi 110
Consulting Firm: Delta
Datum: Mean Sea Level
Logged By: Rick Powell
Conductor Casing:
type: PVC dia: 6.00in fm:.00' to: 40.00'
Date(s): 09/05/95 — 09/05/95.
Purpose: Monitoring Well, Deep
Blank Casing:
type: PVC dia: 2.00in fm: —2.9' to: 46.00'
Drilling Method: Hollow Stem Auger/Air Hammer
Annular Fill:
Screens:
type: BENTONITE—CEMENT GROUT fm:.00' to: 41.00'
type: Slotted size:.010in dia: 2.00in fm: 46.00' to: 61.00'
type: Bentonite Pellets fm: 41.00' to: 43.00'
Remarks: SOILS LOGGED AT DMW-06
type: 20-28 TORPEDO SAND fm: 43.00' to: 61.00'
Well Construction
v
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Material Description
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(n
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540
50
530
60
520
70
510
Page 2 of 2

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APPENDIX C
Sample Field Sampling Sheets

Date! 3/2120Z3 Site: Farmer York Road Landfill
Well ill
DDu'-0t
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na�
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in UTDC)
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Tatal Deptlt [R
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! _
20 125
At

Date:3/28/23 Site: Former York Road Landfill
Conditions: Partly cloud morning, sunny in afternoon 60-70s°F Field Personnel: Nick Hotzelt
Well ID
Time
Water Level
(itBTOC)
Confirm PDB>2 ft Below
Water Table
Tem C
p � )
pH (s.o.)
Spec. Conductivity (VS/cm)
Comments
DDW-01
13:00
7.18
Yes
20.5
6.72
1,092
DDW-01A
13:10
643
Yes
19.7
6.86
1,010
Sulfur odor; little black in water
DDW-02
12:25
12.06
Yes
20.6
5.99
1,279
DDW-03
I1:10
10.38
Yes
18.8
6.40
2,236
Duplicate sample collected concurrently with DDW-03
DDW-03A
I1:00
1.02
Yes
18.8
7.91
1,549
Sulfur odor; little black in water
DMW-01
10:25
30.46
Yes
18.2
5.80
767
DMW-02
16:15
6.35
Yes
20.8
7.36
920
DMW-02A
16:35
0.51
Yes
18.8
12.26
5,925
DMW-02B
16:45
5.82
Yes
18.0
7.36
823
DMW-05
12:35
11.61
- 1 ft below water table
19.5
6.40
1,897
DMW-06
11:20
10.35
Yes
18.8
6.12
2,177
DMW-08
1000
56.33
- 1 ft below water table
19.6
6.45
274.4
DMW-A
8:45
40.30
Yes
18.1
6.26
354.5
YRW-10C
13:45
13.68
Yes
20.2
6.35
1,372
Comments:
Calibrate YSI at 8:15am prior to sampling. VOCs, 1,4-dioxane, and field parameters sampled from the lower passive diffusion bag, and RCRA metals collected from upper passive diffusion bag. Field blank collected at 17:05 using water used to fill passive diffusion bags. EON Products DI Water
ASTM D1193 Type 1 Order #FSW 110 Lot #L2214.

Date:
Site: Former York Road Landfill
Conditions: Partly cloud morning. sunnv in afternoon 60-70s°F Field Personnel: Nick Hotzelt
Well ID
Time
Temp (*C)
pH (s.u.)
Spec. Conductivity (µS/em)
Dissolved Oxygen (mg/L)
ORP (mV)
Comments
NT-1
15:20
18.4
7.12
224.7
6.11
-12.8
Water in this location more stagnant than other locations. Organic matter
present.
NT-2
15:00
17.9
7.02
200.2
6.87
5.7
SC-1
15:30
18.9
7.88
752
8.22
-4.3
SC-2
11:55
18.8
7.48
740
7.13
-13.9
ST-1
1205
18.3
7.50
620
8.46
-55.6
ST-3
9:20
16.0
7.36
233.1
6.93
35.7
Comments:

APPENDIX D
Sample Chain of Custody

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CHAIN OF CUSTODY mawAGE 1 OF 'ol
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Project Information
Requested Analysis I see TEST
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httpalwww sgsscom/en/terms-and-condition&
FC3795: Chain of Custody
Page 1 of 3
N
L
SGS122 of 215
FC3795

00
all CHAIN OF CUSTODY 17COSW,45GEAQ OF a
SNorth America Inc. - Scott
500 Ambassador Caffery Parkway, Scott, LA 70583
TEL. 337.237,4775 FAX: 33T237.7838
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Campany Name
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54s1andara lg Buslness Days Appl—d BY(SCS 11): 11-:
5 Business Days RUSH
�4Business Days RUSH
3 Business Days RUSH
3 Business Days RUSH
1 Business Day EMERGENCY
Other
Ems and &Rush TlAdamuvallehbvll ulrmadW i TAT
C111emml"A"(Leve11) TRRP
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Commercial "A"=Resuit'Only,
Commercial "B' = Results OC Summary
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Note: Sample inventory iS verified upon receipt in the Laboratory
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http:fl w sgsComlenllerms-and-Conditions.
FC3795: Chain of Custody
Page 2 of 3
SGS123 of 215
FC3795

APPENDIX E
Geophysical Investigation

Geo Solutions Ltd.
P.O. Box 293
Conway, North Carolina 27820
[phone]
June 25, 2018
Amy Kenwell, P.G.
Geosyntec Consultants of NC, PC
1300 S. Mint Street
Charlotte, NC 28203
Re: York Landfill Boundary Evaluation
Dear Ms. Kenwell:
Geo Solutions Limited, Inc. (Geo Solutions) is pleased to submit this report to Geosyntec
Consultants of NC, PC (Geosyntec) of a geophysical evaluation conducted the York Landfill
located in Charlotte, North Carolina.
Background
Geosyntec contracted Geo Solutions to complete a geophysical evaluation of the suspected
landfill boundary in two areas of the York Landfill located in Charlotte, North Carolina. The
two areas that were evaluated area shown on Figures 1 and 2 respectively both of which are
delineated in yellow. The location of the area shown on Figure 1 is along the North side of
Tryon Street on the property of Harry L. Jones Sr. Golf Course. The location of the area shown
on Figure 2 is the Northeastern boundary of the York Landfill at Renaissance Park and
Northward onto a school property. The landfill boundary was evaluated in this area.

FIGURE 1
1
LEGEND
Survev Honndary
MULTIFREOUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotla, NC
Map Scale Ircl
o 1.
0-o Solutions Ltd_
Figure 1. Site map of the area surveyed along Tryon Street located in Charlotte North Carolina. The survey
boundary is delineated in yellow.
FIGURE 2
7
`
LEGEND
server eo��a,ry
MULTIFREOUENCY EM
GEOPHYSICAL SURVEY
York Lanfill
Chadolta, NC
Map scale lhl
•]30
1�.�11I5
Gco Solutions Ltd.
Figure 2. Site map of the survey area Northeast of Renaissance Park located in Charlotte North Carolina.
The survey boundary is delineated in yellow.

Technical Approach
Geo Solutions completed all field work on June 1 lth and 12th 2018. The same technical approach
was completed for both survey areas. The following is Geo Solutions' technical approach that was
completed during the geophysical evaluation to assist Geosyntec with their investigation.
1. An electromagnetic (EM) evaluation was completed using a Geophex Model GEM-2
multifrequency electromagnetic profiler. The EM data was collected on a hand-held data
logger that communicated with the GEM-2 unit via Bluetooth. The GEM-2 was connected to
a Hemisphere Model A-325 GPS unit which is augmented by the Wide Area Augmentation
System (WAAS) and is capable of submeter accuracy that provided real-time location data.
The EM profiler was mounted on a custom plastic sled and towed behind a Honda Rancher
all -terrain vehicle (ATV) through the open areas of the site and hand carried through the
wooded areas. At the survey area at the Northeast Boundary and on the school grounds the
EM profile spacing was approximately 3 feet or less. At the survey area along S. Tryon Street,
the EM profile spacing was approximately 5-10 feet or less through most of the surveyed area
except where thick areas of vegetation were encountered.
2. Once adequate survey coverage was achieved, the EM field data were post -processed to merge
the GPS and EM data into a comma separated variable (CSV) file that was then transferred to
a laptop computer. These data were then processed using an inversion program to calculate
the apparent conductivity and in -phase values for each EM frequency collected (1470Hz,
4110 Hz, 9810 Hz, 32,190 Hz, 60000 Hz, and 90030 Hz). Typically, the in -phase data
(sometimes referred to as the metal detection mode) is more representative of surficial and
buried metallic materials whereas the apparent conductivity is more representative of non-
metallic conductive surficial and buried materials. By evaluating both the in -phase and
apparent conductivity response the horizontal extents of the buried landfill materials can be
characterized.
3. Geo Solutions compiled site maps showing the EM results. The results show the apparent
conductivity and in -phase values for the surveyed areas. From this the suspected landfill was
evaluated.
4. Photographs of the site were collected and can be viewed on Appendix A for Tryon Street
survey and Appendix B for the School Property survey.

Results
Electromagnetic Survey along Tryon Street at the Suspected Landfill Boundary
Figure 3 displays the EM profiles collected across the site. Here, the green dotted lines indicate
the location of each multifrequency EM data point collected. EM profiles for this area were run
roughly Northwest/Southeast to attempt to survey the boundary of the landfill. All the
frequencies were evaluated and the 9810 Hz data was chosen to create figures for this report
because it appeared to provide a uniform representation of the overall data base in comparison to
the other 6 frequencies.
Figure 4 displays the results of the 9810 Hz apparent conductivity data across the surveyed area.
Here, the orange and red hues indicate areas of surficial and buried conductive materials while
the green hues indicate background site conditions. Based on the results of the 9810 Hz apparent
conductivity there appears to be a separation between the landfill and Tryon Street. Moreover,
there is a large change in topography North of Tryon Street which corresponds to the elevated
apparent conductivity values (Appendix A, Photograph 3). However, there is an area at the
southwestern boundary of the landfill that approaches Tryon Street. Here, the apparent
conductivity values are slightly elevated above background site conditions. Also, shown on
Figure 4 is an area of elevated conductivity which is South and West of the landfill. Here, the
presence of scattered debris and a culvert pipe were observed. There is an area of elevated
apparent conductivity southeast of the landfill boundary near Tryon Street. This area is
delineated on Figure 4.
Figure 5 displays the results of the 9810 Hz in -phase data. The in -phase mode was much less
responsive than the apparent conductivity. This is typical of municipal landfills and indicates
that the composition of the buried waste in this area is mainly household garbage rather than
abundant buried metallic materials.
Figure 6 is a composite map of both the apparent conductivity and in -phase results. Here, the
estimated landfill boundary has been delineated. Coordinates from twenty-nine points along the
estimated landfill boundary have been tabulated in Table 1 reported in NC State Plane (ft) NAD
1983.
Electromagnetic Survey at Northeastern Boundary of Renaissance Park and School Grounds
Figure 7 displays the EM profiles collected across the Northeastern boundary of Renaissance Park
and extending onto the school property. Here, the green dotted lines indicate the location of each
multifrequency EM data point collected. All the frequencies were evaluated and the 9810 Hz data
was chosen to create figures for this report because it appeared to provide a uniform representation
of the overall data base in comparison to the other 6 frequencies.
Figure 8 displays the results of the 9810 Hz apparent conductivity data across the surveyed area.
Here, the orange and red hues indicate areas of surficial and buried conductive materials while the
green hues indicate background site conditions. The survey area included the alignment of the
methane collection system which includes pipes, wells, protective well covers, and a trench
collection system. The position of this system is pointed out on Figure 8. This subsurface and

surface infrastructure created an elevated apparent conductivity response along this area however,
it is not related to buried waste materials. The landfill boundary was detected south of the methane
collection system near Renaissance Park. Here, an abrupt change in apparent conductivity was
observed which marks the landfill boundary. This would suggest that the buried waste does not
extend past the methane collection trench. There are areas of elevated conductivity that can be
observed in the apparent conductivity data on the school property. It appears that the subgrade
material beneath the asphalt both within the recess areas and parking lots is very conductive. It is
not likely that this is related to the York Landfill but rather the material type that was used during
construction of the school property. The area south of the asphalted surface within the recess area
is slightly elevated in apparent conductivity. The apparent conductivity response is much weaker
here as compared to the landfill observed at Renaissance Park and is not thought to be related to
buried waste materials. There was interference from the school building and outdoor tables in the
recess area. This interference did not affect the integrity of the apparent conductivity evaluation
(Appendix B, Photograph 3).
Figure 9 displays the results of the 9810 Hz in -phase data. A very similar pattern to the apparent
conductivity data was observed in the 9810 Hz in -phase data. Along the methane collection system
metallic and non-metallic materials area present. The protective covers along the collection system
are composed of metal and therefore have an elevated in -phase response. The asphalt areas at the
school property have an elevated in -phase response. Two steel pipes that run from the school
beneath the recess area were detected during the survey. There was interference from the School
building and outdoor tables in the recess area. This interference did not affect the integrity of the
in -phase evaluation.
Conclusions
Electromagnetic Survey along Tryon Street at the Suspected Landfill BoundarX
• Geo Solutions completed a detailed EM survey of the York Landfill along its boundary
near Tryon Street located in Charlotte, North Carolina.
• There is a clear separation between the York Landfill and Tryon Street along the
majority of the area surveyed. There is a large change in topography North of Tryon
Street which corresponds to the elevated apparent conductivity values.
• There is an area of elevated conductivity which is South and West of the landfill. Here,
the presence of scattered debris and a culvert pipe were observed.
• There is an area of elevated apparent conductivity and in -phase response southeast of
the landfill boundary near Tryon Street. This elevated EM response may be related to
subsurface unities however it is possible that it is related to buried waste materials in
this isolated area.

Electromagnetic Survey at Northeastern Boundary of Renaissance Park and School Grounds
• Geo Solutions completed a detailed EM survey of the York Landfill Northeast of
Renaissance Park along a methane collection system and onto a School property located
in Charlotte, North Carolina.
• The landfill boundary was detected south of the methane collection system near
Renaissance Park. The buried waste does not appear to extend past the methane
collection system.
• The asphalted areas surveyed on the school property was both elevated in apparent
conductivity and in -phase values. This likely related to the construction materials
beneath the asphalt surfaces and not related to buried waste.
• There is an area of slightly elevated apparent conductivity south of the asphalted surface
in the recess area at the school property. This is the location of methane detection in the
past. The EM response in this area is much weaker than the landfill observed at
Renaissance Park and is not likely to be related to buried waste.
Geo Solutions is pleased to have been provided this opportunity, please give us a call
should you have any questions concerning the above information.
Very truly yours,
GEO SOLUTIONS LIMITED, INC.
9d""'_"6fzL
John DeLoatch,
Project Manager

Boundary Point
Easting (NC State Plane (ft) NAD 83)
Northing (NC State Plane (ft) NAD 83)
1
1428979.53
520913.70
2
1429039.96
520888.34
3
1429098.62
520889.46
4
1429124.75
520873.98
5
1429166.89
520911.08
6
1429151.31
520936.69
7
1429198.18
520980.59
8
1429263.56
521029.86
9
1429321.86
521070.08
10
1429389.45
521114.71
11
1429435.56
521120.68
12
1429486.89
521157.59
13
1429527.70
521185.51
14
1429541.31
521233.53
15
1429591.52
521271.62
16
1429628.97
521304.20
17
1429648.05
521338.31
18
1429694.51
521361.52
19
1429712.65
521406.00
20
1429757.09
521443.05
21
1429798.13
521482.47
22
1429849.23
521507.88
23
1429886.70
521541.62
24
1429924.24
521578.81
25
1429964.13
521618.25
26
1430018.02
521667.76
27
1430061.28
521703.68
281
1430118.641
521754.27
291
1430163.451
521809.70
Table 1. Boundary Coordinates of York Landfill Near Tryon Street.

'. ' 4
FIGURE 1
LEGEND
Survey Boundary
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scale (ft)
ONE
0 200 400 600
1 " = 200'
Geo Solutions Ltd.

FIGURE 2
LEGEND
Survey Boundary
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
0 115 230
1" =115'
Geo Solutions Lt .
d
4�

FIGURE 3
LEGEND
Indicates Location of
MFEM Survey Point
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scale (ft)
ONE
0 200 400 600
1 " = 200'
Geo Solutions Ltd.

FIGURE 4
4
LEGEND
Apparent Conductivity
Data
9810 Hz
1000
180
- 155
130
105
80
55
30
5
-20
-45
-70
-95
-120
-145
-170
1-195
— — — — — — — Area of Bevated Conductivity
4
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scale (ft)
ow-
0 200 400 600
1 " = 200'
Geo Solutions Lt .
d

FIGURE 5
t
,
,
,
Area of 8 evated
' In -phase Fbspom
LEGEND
In -Phase
Data
9810 Hz
100000
7200
6200
5200
*'
4200
3200
2200
_
= 1200
200
-800
-1800
-2800
-3800
-4800
~�
-5800
-6800
-7800
_ � R
— — — — — Area of Bevated in -phase Response
4
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scale (ft)
y -
.., 1 " = 200'
000
S }4
Geo Solutions Ltd.

FIGURE 6
LEGEND
Composite Data
Outline of
Suspected Landfill
"-
r "
.. 4 Area of 8 evated
ki
1.
�L parent CAndAt-
uctivit �400x W-— Estimated Landfill Boundary
- - - - - - - Area of Bevated Conductivity
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scale (ft)
NEU-
0 60 120 180
1 " = 200'
Geo Solutions Lt .
d

FIGURE 7
LEGEND
Indicates Location of
MFEM Survey Point
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scal a (ft )
0 115 230
1" =115'
Geo Solutions Lt .
d
4�

evated Conductivit
�'n
r
r
Tables
Bevated Conductivity
X
h
FIGURE 8
LEGEND
Apparent Conductivity
Data
9810 Hz
�1000
370
330
290
250
210
170
130
90
50
10
-30
-70
-110
-150
-190
-230
-270
-310
-350
-390
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scal a (ft )
0 115 230
1" =115'
Geo Solutions Lt .
d
4�

V Bevated In -phase
t Response
creel Ripes
Bevated In -phase
- Response
FIGURE 9
LEGEND
In -Phase
Data
9810 Hz
100000
14800
13200
11600
10000
8400
6800
5200
3600
2000
400
-1200
-2800
-4400
-6000
-7600
-9200
-10800
-12400
-14000
-15600
MULTIFREQUENCY EM
GEOPHYSICAL SURVEY
York Landfill
Charlotte, NC
Map Scal a (ft )
0 115 230
1" =115'
Geo Solutions Lt .
d
4�

3� P
iotograph
2.
Lookl
E r�
so
.r,... r ate^. rr�
h,i•- _O' - - •�C. -. •fir
,
t
LANDFI l_L
N.A 901 LS
• ` .. 'try _ - - ' S

saw
r
■ NI
• �kr
-' ;•- - - - - . - _ --ter' -�•
JF
Y
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A -JAM
_ r

K:\_PROJECTS\C\CITY OF CHARLOTTEWORK ROAD LANDFILL\FIGURES\GC5699B.01\GC5699B.01 F001.DWG (25 October 2017) mfabrizio
HMO �
SD-01
6
SD-02 �.
SD-03
04
BLP-18
O BLP-17��
BSB-2 O
�o . , BLP-19 BLP-16;
' LP-20 BLP-8 O
BLP-15 0 ;
L P-21,
BLP-1 4
BLP-3 0 BS13-1
BLP-22 O IsSD-28 O, BLP-14 PC-01
BSB-3 SD-30 LP-2 SD-17
SD-27 ' BLP-130 -Q
SD-26 OBLP- OBLP-4 SD p P fir._
BLP-23 SD-25 SQ'19 j.
SD-06 SD-05 PC-05
SD-24 LP-5 SD-21` **�
co�O SD-22 SD-20
OBLP-12
SD-42 BLP-24 BLIj-1 OBLP 6
SD- O` SD-23 �LP-10 O BLP-11
SQ-14
- �B&P-25 O
SD-15 '
LP-26 BSB-5
BSB-4 O r �y. �;;- .
O SD-16 BLP 30 ►
(� Jt r
`.; SLP-10 , � O' `BLP-29
BLP-27 O r
�LP-7 -
SD-12 O BLP-28
O
LP-9 SLP-6
a
O
SD-11
+.;;. D-13
SLP-5 O G
O
_ #
7 ` i
SD-10 �O p F SD-07 ' -
O
SLP-10
%
LEGEND a f
APPROXIMATE PROPERTY BOUNDARY = c0� �cQ) o
,SD-09
j ----------I AREA OF SUSPECTED BURIED WASTE
-----------1 (NOTE 5)
STREAM REFERENCES
O LIGHT POLE 1. AERIAL PHOTOGRAPHY OBTAINED FROM NC
ONEMAP GEOSPATIAL PORTAL WEB SITE,
© DATED 2015.
SCORE BOARD 0 200' 400'
2. PROPERTY LINES OBTAINED FROM
STORM DRAINS MECKLENBURG COUNTY GIS.
SCALE IN FEET
LANDFILL GAS MIGRATION CONTROL 3. STREAM LOCATIONS FROM MECKLENBURG
COUNTY GIS, NORTH CAROLINA OPEN
SYSTEM BUILDING (APPROXIMATE) RENAISSANCE PARK
MAPPING WEBSITE, 20141014, CREEKS AND
LFG MIGRATION CONTROL SYSTEM
STREAMS. SELECTED SITE FEATURES
EXTRACTION WELL 4. CONTOUR DATA FROM LIDAR DATA FORMER YORK ROAD LANDFILL
COLLECTED 2012 OBTAINED 24 OCT 2017 CHARLOTTE, NORTH CAROLINA
42+ METHANE MONITORING PROBE FROM MECKLENBURG COUNTY PUBLIC
LOCATION OPEN MAPPING WEBSITE.
(SU-03R TRENCH SYSTEM EXTRACTION WELL 5. APPROXIMATE WASTE BOUNDARY OBTAINED GeosynteC"' Figure:
FROM EM MAPPING PERFORMED BY GEO consultants
EW-2 PASSIVE LANDFILL GAS EXTRACTION SOLUTIONS, LTD, OBTAINED 23 OCT 2017 1
WELL AND HISTORICAL DRAWINGS. CHARLOTTE, NC OCTOBER 2017

PRIVILEGED AND CONFIDENTIAL
A;
a
47
4�
i ; ► `� 1! A
-Aw
W`''¢
,51 52
0
�D
4
Interfence from Building
and Metal Fence
R
53
At
°0 0
FA
9
a 4
Elevated Conductivit
i
19
7 23 2 �CIO
aCl)
k
h i 16
5
26 a
a
Q)
46-
36 5••t-3.-s�,,,�
! iR }.
0
3334
=;•
dh
Electromagnetic Survey
Renaissance Park - Former York Landfill
Prepared for Geosyntec Consultants
32190 Hz EM Response
Surveyed: 10/17/2017
200
175
150
E 125
U) 100
E 75
50
U 25
_0 0
U -25
-50
C �
N -75
-100
Q
Q -125
-150
-175
-200
LEGEND
5
Boudary of A
Suspected Buried Landfill Debris
Geo Solutions Ltd.
Map Scale (ft)
0 225 450
1 "=225'

APPENDIX F
Receptor Survey Map

\\CHARLOTTE-01\DATA\CADD\_PROJECTS\C\CITY OF CHARLOTTE\YORK ROAD LANDFILL\CORRECTIVE ACTION EVALUATION REPORT (GC5699H.01)\DRAWINGS\SHEETS\GC5699F006.DWG (30 August 2023) mjerome
w X�
1/0 PNI
Rr
s;4 �Q�Wi
r.
JOHN
CROSLAND
SCHOOL
.>
<:l .N/ -
'`..l w . ` f'. •�.
s ljli
LANDFILL
AREA D \
1980-1983
ST-3 "� •3=
Ak
ST-2
...J GOLF r 1�•
CLUBHOUSE
�.7
WSW-4
• 5t I LANDFILL
AREA E
1983-1984
r
LANDFILL
AREA C
1972-1976
SC-2
r _r. •� ' x _'" WSW_ .,
WSW-3 •
54,
JIN,, . ! a
5Q,lk
�' „m ms� • tf
LEGEND
— —
APPROXIMATE PROPERTY BOUNDARY
STREAM
1500' BUFFER
STREAM SAMPLE LOCATION
•
ABANDONED WATER SUPPLY WELL
•
NON -DRINKING WATER SUPPLY WELL
•
INACTIVE WATER SUPPLY WELL
LANDFILL AREA F
1984-1986
LANDFILL
AREA B
1974-1980
•`fir �1 i � �
REFERENCES
L
LEATHERMAN
MAINTENANCE BUILDING
i, ire
WSW-
�`i I�
,' ;t XX On
4 �� 4 A
�•
N kY'c die^
1. AERIAL PHOTOGRAPHY OBTAINED FROM
NEARMAP, DATE OF PHOTOGRAPHY JANUARY
27, 2023.
2. PROPERTY LINES OBTAINED FROM
MECKLENBURG COUNTY GIS.
3. WELL AND MONITORING LOCATIONS
APPROXIMATED FROM DRAWINGS PREPARED
BY HDR.
4. STREAM LOCATIONS FROM MECKLENBURG
COUNTY GIS, NORTH CAROLINA OPEN
MAPPING WEBSITE, 20141014, CREEKS AND
STREAMS.
5. APPROXIMATE WASTE BOUNDARY OBTAINED
FROM EM MAPPING PERFORMED BY GEO
SOLUTIONS, LTD, OBTAINED 23 OCT 2017 AND
HISTORICAL DRAWINGS.
RENAISSANCE
MAINTENANCE
BUILDING
-7N
i... rib..
_:r
0 800' 1600'
SCALE IN FEET
RECEPTOR SURVEY MAP
FORMER YORK ROAD LANDFILL
CHARLOTTE, NORTH CAROLINA
Geosyntec
consultants Appendix
GeosYntec Consultants of NC, P.C. H
CHARLOTTE, NC AUGUST 2023

APPENDIX G
Biochlor Model

BIOCHLCR Natural Attenuation Decision Support System
Version 2.2
Excel2000
TYPE OF CHLORINATED SOLVENT- Ethenes
Ethanes
5. GENERAL
Q Simulation Time"
1. ADVECTION AModeled Area Width'
Seepage Velocity' Vs 193.5 (fttyr) Modeled Area Length'
or :Zane 1 Length"
Hydraulic Conductivity k (crrysec) :Zane 2 Length*
Hydraulic Gradient i (loft)
Effective Porosity n
......................................................................................................
2. DISPERSION
Alpha x� 34 (ft) Calc.
(Alpha y) / (Alpha x)' (_} 0.1 Alpha x
(Alpha a) / (Alpha x)' 1.E-99 H
........................................................................................
I ADSORPTION
Retardation Factor' R
or
Soil Bulk Density, rho 1.5 (kg/L)
FractionOrganicCarbon, foc I 1-OE-3 (-)
Partition Coefficient Koc
PCE 426 (Ukg) 4.20 (-}
TCE 130 (Ukg) 1.98 H
DCE 125 (Ukg) 1.94 (-}
VC 30 (Ukg) 1.22 (-}
ETH 302 (Ukg) 3.27 (-}
Common R (used in model)' = 1.98
4. BIOTRANSFORMATION -7st order ❑ecay Coefficient'
Zone 1 ?� (1/yr) half-life (yrs) Yield
PCE TCE LO.3
1..95 0.79
TCE DCE 210 0.74
DCE VC
1.90 0.64
C
6. SOURCE DATA
Source Options
25 (yr)
1800 (ft)
750 (ft)
750 (ft)
0 (ft)
FYPE: Decaying
Single Planar
Source Thickness in Sat. Zone" =1 (ft)
Y1
Width" (ft) 600
ks"
Conc_ (mg.,Q, C1 (Ijyr)
PCE
.001
0
TCE
004
0
DCE
025
0
VC
003
0
ETH
0
7. FIELD DATA FOR COMPARISON
PCE CDnc_ (mg/L)
.TCE Conc. (mg/L)
JDCE Canc. (mg/L)
VC Conc. (mg/L)
ETH Canc. (mg/L)
Distance from Source Ift)
Date Data Collected
......................................................................
Data Input Instructions:
> > 5
1. Enter value directly .... or
T or
2_ Calculate by filling in gray
0.02
cells. Press Enter, then Cc
(To restore formulas,
hit 'Restore Formulas" button }
Variable'
- Data used directly in model_
Test if
Biotransformation Natural Attenuation
is Occurring
4 Screening Protocol
York Road
Landfill
Run Name
C
i I_ ---- a
t
W
ZoneL-Zone 1
Vertical Plane Source: ❑etermine Source Well
Location and Input Solvent Concentrations
View of Plume Looking Dawn
Observed Centerline Canc. at Manitoring Wells
VC ETH 2.557 F 0.27 0.45 8_ CHOOSE TYPE OF OUTPUT TO SEE:
Zone 2 k (1/yr) half-life (yrs)
PCE TCE D.Ufla #• f e Restore
TCE DCE e.eflfl F i SELF RUN RUN ARRAY
DCE4 VC aflfl F CENTERLINE
VC � ETH D.000 F _ SEE Paste
Unprotect

DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE (mg/L) at Z=0
Distance from Source (ft)
TCE
No Degradation
Biotransformation
Field Data from Site
J
0
75
150
225
300
375
450
525
600
675
750
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.004
0.0044
0.004
0.004
0.003
0.003
0.003
0.002
0.002
0.002
0.002
0.001
-No Degradation/Production
1.000
E. 0.100
c
O
b 0.010
c
d
v
c
0 0.001
0
Prepare Animation
Mon
-Sequential 1st Order Decay
Well Locations
o Field Data from Site
100 200 300 400 500
Distance From Source (ft.)
Log Linear
600 700 800
mpui
See PCE
See TCE
See DCE
See VC
See ETH
JTo Array

DISSOLVED CHLORINATED SOLVENT CONCENTRATIONS ALONG PLUME CENTERLINE (mg/L) at Z=0
Distance from Source (ft)
VC
No Degradation
Biotransformation
Field Data from Site
J
0
75
150
225
300
375
450
525
600
675
750
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.003
0.0033
0.003
0.002
0.002
0.002
0.001
0.001
0.001
0.001
0.001
0.001
-No Degradation/Production
1.000 T
�. 0.100
c
O
E
c
0.010
m
c
0
V 0.001
0
Prepare Animation
Mon
-Sequential 1st Order Decay
Well Locations
o Field Data from Site
100 200 300 400 500
Distance From Source (ft.)
Log Linear
800 77Kj— 750
600 700 800
See PCE
See TCE
See DCE
See VC
See ETH
Input J • - —.. J To Array

APPENDIX H
Groundwater PFAS Analytical Data
Summary (Police &Fire Training
Academy)

Groundwater PFAS Analytical Data Summary
Police & Fire Training Academy
Charlotte, North Carolina
H&H Job No. CLT-701
Screening
Criteria
NC 2L2
NC PHG3
Sample ID
DDW-01
DDW-OlA
DDW-02
DDW-03
9/29/2021
10/24/2022
9/29/2021
10/24/2022
10/6/2020
9/29/2021
10/24/2022
11/6/2020
9/30/2021
10/24/2022
Date
(ng/1)
(ng/1)
PFASI
Perfluorobutanoic acid (PFBA)
5.2
4.6
15
7.3
170
210
61
340
340
250
5
NS
Perfluoropentanoic acid (PFPeA)
3.2
5.3
8.4
4.8
35
43
15
48
50
38
2
NS
Perfluorohexanoic acid (PFHxA)
5.9
5.8
12
6.3
84
94
32
150
140
110
2
NS
Perfluoroheptanoic acid (PFHpA)
2.0
2.6
3.6
3.4
23
28
10
32
34
22
2
NS
Perfluorooctanoic acid (PFOA)
3.2
2.5
6.1
4.3
51
65
23
38
43
28
2
NS
Perfluorononanoic acid (PFNA)
<0.25
<0.25
<0.25
0.62 J
0.94 J
0.96 J
0.99 J
<0.25
<0.26
<0.25
2
NS
Perfluorodecanoic acid (PFDA)
<0.29
<0.28
<0.28
1.0 J
<0.29
<0.29
0.70 J
<0.51
<0.29
<0.28
2
NS
Perfluoroundecanoic acid (PFUnA)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.1
<1.0
<1.0
<1.0
2
NS
Perfluorododecanoic acid (PFDoA)
<0.51
<0.50
<0.50
<0.51
<0.51
<0.51
<0.53
<0.51
<0.52
<0.50
2
NS
Perfluorotridecanoic Acid (PFTrDA)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.3
<1.2
<1.2
<1.2
2
NS
Perfluoropentanesulfonic acid (PFPeS)
0.811
<0.27
0.71 J
<0.28
NA
8.0
2.9
NA
14
9.3
2
NS
Perfluorobutanesulfonic acid (PFBS)
1.11
0.61 J
1.6 J
1.11
14
17
5.0
29
27
14
2
NS
Perfluorohexanesulfonic acid (PFHxS)
1.3 J
1.11
2.0
3.5
13
13
4.0
22
24
12
2
NS
Perfluoroheptanesulfonic Acid (PFHpS)
<0.18
<0.17
<0.17
<1.9
0.55 J
<0.17
<0.18
0.86 J
2.5
<0.17
2
NS
Perfluorooctanesulfonic acid (PFOS)
4.9
2.5
2.5
9.3
14
18
8.8
22
23
14
2
NS
Perfluorononanesulfonic acid (PFNS)
<0.34
<0.34
<0.34
<0.34
NA
<0.34
<0.36
NA
<0.35
<0.34
2
NS
Perfluorodecanesulfonic acid (PFDS)
<0.30
<0.29
<0.29
<0.30
<0.30
<0.29
<0.31
<0.30
<0.30
<0.29
2
NS
Perfluorooctane Sulfonamide (FOSA)
<0.91
<0.89
<0.89
<0.91
<0.91
<0.90
<0.95
<0.92
<0.93
<0.90
2
NS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.3
<1.2
<1.2
<1.2
10
NS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
<1.1
1.3 J
<1.1
<1.1
<1.1
<1.1
<1.2
<1.1
<1.1
1.5 J
10
NS
Perfluorotetradecanoic acid (PFTeA)
<0.68
<0.66
<0.67
<0.68
<0.67
<0.67
<0.71
<0.68
<0.69
<0.67
2
NS
6:2 FTS
<2.3
<2.3
<2.3
7.4 J
<2.3
<2.3
<2.4
<2.3
<2.4
<2.3
10
NS
4:2 FTS
<0.22
<0.22
<0.22
<0.22
NA
<0.22
<0.23
NA
<0.23
<0.22
2
NS
8:2 FTS
<0.43
<0.42
<0.42
<0.43
<0.42
<0.42
<0.45
<0.43
<0.44
<0.42
10
NS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
<0.37
<0.36
<0.37
<0.37
NA
<0.37
<0.39
NA
<0.38
<0.37
2
NS
HFPO-DA (GenX)
<1.4
<1.4
<1.4
<1.4
NA
<1.4
<1.5
NA
<1.4
<1.4
4
140
9C1-PF3ONS
<0.22
<0.22
<0.22
<0.22
NA
<0.22
<0.23
NA
<0.23
<0.22
2
NS
11Cl-PF30UdS
<0.30
<0.29
<0.29
<0.30
NA
<0.29
<0.31
NA
<0.30
<0.29
2
NS
10:2 FTS
<0.62
<0.61
<0.61
<0.62
NA
<0.62
<0.65
NA
<0.63
<0.61
2
NS
Total PFAS
27.61
26.31
51.91
49.02
405.49
496.96
163.39
681.86
697.50
498.80
NS
NS
Notes:
ng/L = nanograms/Liter (ppt)
Bold indicates exceeds groundwater standard.
PFAS = Per- and polyfluorinated alkyl substances; A = Not Analyzed; NS = Not Specified; E = Estimated result above calibration range; J - The analyte was positively identified but the value is estimated below the reporting limit
' 10/20, 9/21, & 10/22 samples by Test America for expanded list PFAS via Method 537 (modified).
2NCAC Title 15A, Subchapter 2L Groundwater Standards, effective April 1, 2022; the 2L Groundwater Standard used at this site is the laboratory practical quantitation limit (PQL) for the analyzed PFAS compounds.
3NC PHG = North Carolina Department of Health and Human Services Provisional Health Goal for Drinking Water, July 2017.
Table 10 (Page 1 of 2)
File: 2022 TablesRI.Asm\Table 10 GW PFAS data (6)
Date: 8/23/2023 Hart & Hickman, PC

Groundwater PFAS Analytical Data Summary
Police & Fire Training Academy
Charlotte, North Carolina
H&H Job No. CLT-701
Screening
Criteria
NC 2L2
NC PHG3
Sample ID
DDW-03A
DMW-02
DMW-05
DMW-06
YRW-09A
YRW-IOC
11/6/2020
9/29/2021
10/25/2022
9/30/2021
10/25/2022
10/6/2020
9/29/2021
10/24/2022
11/6/2020
9/30/2021
10/24/2022
9/29/2021
10/24/2022
9/29/2021
10/24/2022
Date
(ng/1)
(ng/1)
PFAS1
Perfluorobutanoic acid (PFBA)
8.9
7.2
8.2
<2.2
2.6 J
170
130
160
260
250
250
4.4
5.8
50
350 E
5
NS
Perfluoropentanoic acid (PFPeA)
13
13
14
1.2 J
1.6 J
58
' 55
67
40
42
41
1.5 J
1.6 J
81
210
2
NS
Perfluorohexanoic acid (PFHxA)
17
13
16
1.3 J
1.6 J
75
58
80
120
110
130
2.8
4.0
62
200
2
NS
Perfluoroheptanoic acid (PFHpA)
45
47
56
0.58 J
0.73 J
23
19
26
26
27
29
1.0 J
1.11
24
63
2
NS
Perfluorooctanoic acid (PFOA)
32
26
30
1.9
1.6 J
49
43
64
32
38
40
1.6 J
1.8
48
95
2
NS
Perfluorononanoic acid (PFNA)
5.4
3.9
4.4
0.41 J
0.32 J
0.66 J
0.61 J
0.82 J
<0.25
0.28 J
<0.26
<0.23
<0.24
0.85 J
0.811
2
NS
Perfluorodecanoic acid (PFDA)
11
6.6
7.6
<0.29
<0.28
<0.29
<0.28
<0.26
<0.28
<0.30
<0.29
<0.26
<0.28
<0.27
<0.26
2
NS
Perfluoroundecanoic acid (PFUnA)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<0.98
<0.91
<1.0
<1.1
<1.0
<0.94
<1.0
<0.96
<0.91
2
NS
Perfluorododecanoic acid (PFDoA)
1.4 J
1.11
1.11
<0.52
<0.50
<0.51
<0.49
<0.46
<0.50
<0.53
<0.52
<0.47
<0.50
<0.48
<0.45
2
NS
Perfluorotridecanoic Acid (PFTrDA)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.1
<1.2
<1.2
<1.2
<1.1
<1.2
<1.1
<1.1
2
NS
Perfluoropentanesulfonic acid (PFPeS)
NA
<0.27
0.94 J
<0.28
<0.27
NA
3.7
5.9
NA
12
14
0.37 J
0.37 J
5.5
8.9
2
NS
Perfluorobutanesulfonic acid (PFBS)
0.28 J
<0.18
0.30 J
0.58 J
0.75 J
14
13
17
25
24
26
0.87 J
0.85 J
13
18
2
NS
Perfluorohexanesulfonic acid (PFHxS)
<0.52
<0.52
<0.53
0.68 J
1.11
14
9.6
14
19
18
23
0.72 J
0.96 J
50
28
2
NS
Perfluoroheptanesulfonic Acid (PFHpS)
<0.17
<0.17
<0.18
<0.18
<0.17
0.35 J
<0.17
0.26 J
0.73 J
1.4 J
1.0 J
<0.16
<0.17
<0.17
<0.16
2
NS
Perfluorooctanesulfonic acid (PFOS)
<0.49
<0.49
<0.50
4.1
1.9
9.6
11
14
20
23
23
0.86 J
<0.49
<0.47
4.9
2
NS
Perfluorononanesulfonic acid (PFNS)
NA
<0.34
<0.34
<0.35
<0.34
NA
<0.33
<0.31
NA
<0.35
<0.35
<0.32
<0.34
<0.32
<0.30
2
NS
Perfluorodecanesulfonic acid (PFDS)
<0.29
<0.29
<0.30
<0.30
<0.29
<0.30
<0.29
<0.27
<0.29
<0.31
<0.30
<0.27
<0.29
<0.28
<0.26
2
NS
Perfluorooctane Sulfonamide (FOSA)
<0.89
<0.89
<0.91
<0.92
<0.89
2.3
0.90 J
<0.81
<0.90
<0.94
<0.93
<0.84
<0.29
<0.85
<0.81
2
NS
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.1
<1.2
<1.2
<1.2
<1.1
<1.2
<1.1
<1.1
10
NS
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.1
<1.0
<1.1
<1.1
<1.1
<1.0
<1.1
<1.0
<0.99
10
NS
Perfluorotetradecanoic acid (PFTeA)
<0.66
<0.66
<0.68
<0.68
<0.66
<0.68
<0.65
<0.61
<0.67
<0.70
<0.69
<0.62
<0.66
<0.64
<0.60
2
NS
6:2 FTS
<2.3
<2.3
<2.3
<2.3
<2.3
<2.3
<2.2
<2.1
<2.3
<2.4
<2.4
<2.1
<2.3
<2.2
<2.1
10
NS
4:2 FTS
NA
<0.22
<0.22
<0.22
<0.22
NA
<0.21
<0.20
NA
<0.23
<0.23
<0.20
<0.22
<0.21
<0.20
2
NS
8:2 FTS
<0.42
<0.42
<0.43
<0.43
<0.42
<0.43
<0.41
<0.38
<0.42
<0.44
<0.44
<0.39
<0.42
<0.40
<0.38
10
NS
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
NA
<0.36
<0.37
<0.37
<0.36
NA
<0.36
<0.33
NA
<0.38
<0.38
<0.34
<0.36
<0.35
<0.33
2
NS
HFPO-DA (GenX)
NA
<1.4
<1.4
<1.4
<1.4
NA
<1.3
<1.2
NA
<1.4
<1.4
<1.3
<1.4
<1.3
<1.2
4
140
9C1-PF30NS
NA
<0.22
<0.22
<0.22
<0.22
NA
<0.21
<0.20
NA
<0.23
<0.23
<0.20
<0.22
<0.21
<0.20
2
NS
11C1-PF3OUdS
NA
<0.29
<0.30
<0.30
<0.29
NA
<0.29
<0.27
NA
<0.31
<0.30
<0.27
<0.29
<0.28
<0.26
2
NS
10:2 FTS
NA
<0.61
<0.62
<0.63
<0.61
NA
<0.60
<0.56
NA
<0.64
<0.63
<0.57
<0.61
<0.58
<0.55
2
NS
Total PFAS
133.98
1 117.80
1 138.54
1 10.75
1 12.20
1 415.91
1 343.81
1 448.98
1 542.73
1 545.68
1 577.00
1 14.12
1 16.48
1 334.35
1 978.61
1 NS
I NS
Notes:
ng/L = nanograms/Liter (ppt)
Bold indicates exceeds groundwater standard.
RB-1 = Equipment rinse blank of PVC bailer
PFAS = Per- and polyfluorinated alkyl substances; NA = Not Analyzed; NS = Not Specified; E = Estimated result above calibration range; J - The analyte was positively identified but the value is estimated below the reporting limit
' 10/20, 9/21, & 10/22 samples by Test America for expanded list PFAS via Method 537 (modified).
2NCAC Title 15A, Subchapter 2L Groundwater Standards, effective April 1, 2022; the 2L Groundwater Standard used at this site is the laboratory practical quantitation limit (PQL) for the analyzed PFAS compounds.
3NC PHG = North Carolina Department of Health and Human Services Provisional Health Goal for Drinking Water, July 2017.
Table 10 (Page 2 of 2)
File: 2022 TablesRl Asm\Table 10 GW PFAS data (8)
Date: 8/23/2023 Hart & Hickman, PC