8003_Rowan_MSWLF_CDLF_WQMP_FID1576665_20210412

GOLDER
REPORT
WATER QUALITY MONITORING PLAN
Rowan County Landfill, Permit No. 80-03
Rowan County, North Carolina
Submitted to:
Jaclynne Drummond
NC Division of Waste Management
Solid Waste Section
2090 US Highway 70
Swannanoa, NC 28778
Ci ihmittarl hv-

April 12, 2021
Distribution List
Caleb Sinclair, Rowan County Environmental Management, 1102 N Long Street Extension
East Spencer, NC 28039, [e-mail]
Jeff Boyd, Landfill Manager, 789 Campbell Road, Woodleaf, NC 27054, [phone]
Mike Plummer, PE, HDR, 440 South Church Street, Suite 1000 Charlotte, NC 28202, [phone],
[e-mail] (electronic copy)
20140083.400
4 GOLDER

April 12, 2021 20140083.400
Table of Contents
1.0
INTRODUCTION.............................................................................................................................................4
1.1
Site Description....................................................................................................................................4
1.2
Site Geology and Hydrogeology..........................................................................................................4
2.0
GROUNDWATER MONITORING SYSTEM...................................................................................................5
2.1
Monitoring Well Network......................................................................................................................5
2.2
Monitoring Well Construction...............................................................................................................6
2.3
Monitoring Well Development..............................................................................................................7
2.4
Maintenance and Recordkeeping........................................................................................................7
2.5
Monitoring Well Decommissioning.......................................................................................................7
3.0
GROUNDWATER MONITORING PROGRAM...............................................................................................8
3.1
Detection Monitoring............................................................................................................................8
3.1.1
Sampling Frequency.......................................................................................................................8
3.1.2
Establishment of Background Data.................................................................................................8
3.1.3
Evaluation of Detection Monitoring Data........................................................................................8
3.2
Assessment Monitoring........................................................................................................................9
3.2.1
MSW Unit........................................................................................................................................9
3.2.2
C&D Unit.......................................................................................................................................10
3.3
Evaluation and Reporting of Monitoring Data....................................................................................11
4.0
GROUNDWATER SAMPLING METHODOLOGY.......................................................................................11
4.1
Sample Collection..............................................................................................................................11
4.1.1
Sampling Frequency.....................................................................................................................11
4.1.2
Static Water Elevations.................................................................................................................11
4.1.3
Well Evacuation............................................................................................................................12
4.1.3.1
Low -Flow Procedures................................................................................................................12
4.1.3.2
Standard Evacuation Procedures..............................................................................................13
4.1.3.3
Collection...................................................................................................................................14
4.1.3.4
Decontamination........................................................................................................................14
GOLDER ii

April 12, 2021
20140083.400
4.2 Sample Preservation and Handling...................................................................................................14
4.3 Chain -of -Custody Program................................................................................................................15
4.3.1 Sample Labels..............................................................................................................................15
4.3.2 Sample Seal..................................................................................................................................15
4.3.3 Field Logbook................................................................................................................................15
4.3.4 Chain -of -Custody Record.............................................................................................................16
4.4 Analytical Procedures........................................................................................................................16
4.5 Quality Assurance and Quality Control Program...............................................................................17
5.0 STATISTICAL METHODS............................................................................................................................17
6.0 SURFACE WATER MONITORING (RULE.0602).......................................................................................18
7.0 REFERENCES..............................................................................................................................................18
TABLE
Table 1 Summary of Groundwater Monitoring Well Construction Information
FIGURES
Figure 1 Water Quality Monitoring Plan
Figure 2 Typical Groundwater Monitoring Well Schematic
APPENDIX
APPENDIX A
REGULATORY REQUIREMENTS
GOLDER iii

April 12, 2021 20140083.400
1.0 INTRODUCTION
This Water Quality Monitoring Plan (WQMP) will serve as a guidance document for collecting and analyzing
groundwater and surface water samples, evaluating the associated analytical results, and monitoring for any
potential releases to the uppermost aquifer from the Rowan County Landfill, Permit No. 80-03, located in Rowan
County, North Carolina (NC). The WQMP complies with NC Solid Waste Management Regulations (SWMR)
Subchapter 13B .1630 through .1637 as part of the updated permit application for the active municipal solid waste
(MSW) facility and section .0544 through .0545 for the closed construction and demolition (C&D) facility. The
C&D facility closed in 2008. This Plan also addresses the requirements for surface water monitoring specified
in Rule .0602. The pertinent geologic and hydrogeologic characteristics of the site, as described in the Design
Hydrogeologic Report for the Cell IV expansion of the Rowan County Landfill, prepared by Buxton Environmental,
Inc., and previous water quality monitoring reports prepared by Golder Associates NC, Inc. (Golder) are
summarized below.
Site Description
The location of the facility is shown on the inlay on Figure 1. As presented, the Rowan County solid waste facility
is located approximately 1.5 miles southeast of the town of Woodleaf on Campbell Road, Rowan County, NC.
The landfill facility covers approximately 375 acres of land and is bounded to the north by Campbell Road,
Second Creek and woodlands to the south and east and wooded, residential and agricultural properties to the
west. Surrounding land use is primarily rural residential, agricultural, or undeveloped and wooded. Access to the
facility is via the drive off of Campbell Road to the north. The facility is comprised of an active Subtitle D MSW
unit, a closed C&D unit, and a closed land clearing inert debris (LCID) unit (Figure 1).
Topographic elevations at the facility range from approximately 766 feet above mean sea level (AMSL) east of the
existing scale house to approximately 635 feet AMSL at the edge of Second Creek along the southern property
boundary. Surface drainage from the landfill and surrounding areas is directed by one of the two main drainage
features that drain into Second Creek, which flows from the southwest to the northeast (S&ME October 2005).
Groundwater monitoring at the facility was initiated in December 1989 under the Detection Monitoring Program for
MSW landfills.
1.2 Site Geology and Hydrogeology
Geologically, the facility is located within the Charlotte Belt of the Piedmont Physiographic Province of NC (NCGS
1985). The Charlotte Belt is composed of Precambrian and Paleozoic bedrock, which is dominantly plutonic with
plutons ranging from granite to gabbro. The oldest rocks in the Charlotte Belt are mafic gneisses, amphibolites,
metagabbros and metavolcanic rocks, with lesser amounts of biotite gneiss, granitic gneiss, mica schist, quartzite,
and ultramafic rocks. Mica schists and mica hornblende gneisses locally have been intruded by granite. The
rocks underlying the facility consist of mostly diorite, gabbro, and granite (NCGS 1985).
The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of partially
weathered, fractured, meta -volcanic rock. Groundwater occurs at depths ranging from near ground surface in
valleys to more than 100 feet below grade on steep hills (S&ME October 2005). Depth -to -water measurements
obtained during the January 2020 monitoring event were used to prepare a groundwater surface contour map
presented as an overlay on Figure 1 (Golder March 2020).
GOLDER

April 12, 2021
20140083.400
As presented, the groundwater flow in the uppermost aquifer beneath the site is to the southwest toward Second
Creek. The groundwater surface contour map and interpreted flow directions are consistent with previously
submitted groundwater surface contour maps for this facility.
Historically, the average estimated linear groundwater flow velocity for the subsurface at the facility is around 300
feet per year. The range of groundwater flow is expected to vary depending on the topographic and
hydrogeologic conditions.
2.0 GROUNDWATER MONITORING SYSTEM
The following sections present the proposed monitoring well network for the active MSW landfill unit and the
closed C&D landfill unit, along with specifications associated with installing, developing, maintaining, and
decommissioning facility monitoring wells. The proposed well locations are selected to yield groundwater
samples representative of the conditions in the uppermost aquifer underlying the facility, and to monitor for
potential releases from each landfill unit. Groundwater monitoring wells shall be sampled during the active life of
the landfill as well as the post -closure period, in accordance with Rule .1630 and .0544 of the NC SWMR.
2.1 Monitoring Well Network
The proposed monitoring network as shown on Figure 1 is designed to monitor for potential releases to the
uppermost aquifer from the MSW and C&D units. Existing monitoring wells MW-9 and MW-16 are the
background compliance wells for the MSW unit, which are located upgradient of the MSW unit. Similarly, well
MW-17 is the background compliance well for the C&D unit. The need for additional background wells will be
evaluated based on analytical results, if appropriate.
The active MSW landfill monitoring network is currently comprised of 13 downgradient monitoring wells, which
monitor the uppermost aquifer beneath the facility: MW-1, MW-7, MW-11, MW-12, MW-13, MW-20, MW-23,
MW-23A, MW-24R, MW-25, MW-26, MW-27, and MW-28R. In addition, monitoring wells MW-6, MW-27A, and
MW-28 are monitored during each semi-annual sampling event for water levels only.
Well MW-23A is proposed for water levels only during this plan revision. Well MW-23 is more representative of
the uppermost aquifer as it is screened within saprolite/soils and MW-23A is screened within partially weathered
rock. Based on over 15 years of water quality monitoring data, the wells are geochemically similar and therefore
this monitoring redundancy is unnecessary.
A French Drain that lies within the Phase III footprint is also monitored. Two downgradient monitoring wells
(MW-18R and MW-19) monitor the C&D landfill. Additional downgradient wells will be added to the monitoring
network, if needed, as future phases are constructed. Refer to the table below for a summary of proposed
monitoring wells.
Pointr nitoring
MSW Facility
MW-9
Upgradient
MW-16
Upgradient
MW-1
Downgradient
GOLDER

April 12, 2021
20140083.400
PointDonitoring
MW-7
Downgradient
MW-11
Downgradient
MW-12
Downgradient
MW-13
Downgradient
MW-20
Downgradient
MW-23
Downgradient
MW-24R
Downgradient
MW-25
Downgradient
MW-26
Downgradient
MW-27
Downgradient
MW-28R
Downgradient
French Drain
Downgradient
MW-6
Water Levels Only
MW-23A
Water Levels Only
MW-27A
Water Levels Only
MW-28
Water Levels Only
C&D Facility
MW-17
Upgradient
MW-18R
Downgradient
MW-19
Downgradient
2.2 Monitoring Well Construction
The well completion details for the existing groundwater compliance monitoring wells are included in Table 1.
Drilling and installation of any new monitoring wells will be performed in accordance with the specifications
outlined in 15A NCAC Subchapter 2C, Section .0100. A typical groundwater monitoring well schematic is
provided as Figure 2. Further guidance is provided in the Draft and US EPA Region 4 Science and Ecosystem
Support Division (SESD)'s Design and Installation of Monitoring Wells (February 2008). Drilling and well
installation activities will be conducted in under the supervision of a licensed geologist. New wells will be located
by a licensed surveyor to within +0.1 foot on the horizontal plane and +0.01 foot vertically in reference to existing
GOLDER

April 12, 2021 20140083.400
survey points. A boring log, well construction log, groundwater monitoring network map, well installation
certification, and survey data will be submitted to the Solid Waste Section (SWS) upon completion.
2.3 Monitoring Well Development
Newly constructed wells will be developed to remove particulates present in the well due to construction activities,
and to interconnect the well with the aquifer. Groundwater monitoring wells will be developed to reduce turbidity
as outlined in US EPA Region 4 Science and Ecosystem Support Division (SESD)'s Groundwater Sampling
Operating Procedure (April 2017). Development of new monitoring wells will be performed no sooner than 24
hours after well construction. Wells may be developed with disposable bailers, a well development pump, or other
approved method. A surge block may be used as a means of assessing the integrity of the well screen and riser.
In the event a pump is employed, the design of the pump will be such that any groundwater that has come into
contact with air is not allowed to drain back into the well. In general, each well will be developed until sediment -
free water with stabilized field parameters (i.e., temperature, pH, and specific conductance) is obtained.
Well development equipment (i.e., bailers, pumps, surge blocks) and any additional equipment that contacts
subsurface formations will be decontaminated prior to on -site use, between consecutive on -site uses, and/or
between consecutive well installations.
The purge water will be disposed of on the ground surface at least 10 feet downgradient of the monitoring well,
unless field characteristics suggest the water will need to be disposed of otherwise. If field characteristics
suggest, the purge water will be containerized and disposed of by other approved means.
Samples withdrawn from the facility's monitoring wells should be clay- and silt -free; therefore, existing wells may
require re -development from time to time based upon observed turbidity levels during sampling activities. If re-
development of an existing monitoring well is required, it will be performed in a manner similar to that used for a
new well.
2.4 Maintenance and Recordkeeping
The monitoring wells will be used and maintained in accordance with design specifications throughout the life of
the monitoring program. Routine well maintenance will include inspection and correction/repair of, as necessary,
identification labels, concrete aprons, locking caps and locks, and access to the wells. Should it be determined
that background or compliance monitoring wells no longer provide samples representative of the quality of
groundwater passing the relevant point of compliance, the SWS will be notified. The owner will re-evaluate the
monitoring network, and provide recommendations to the SWS for modifying, rehabilitating, decommissioning, or
installing replacement or additional monitoring wells, as appropriate.
Laboratory analytical results will be submitted to the SWS semi-annually. Analytical data, calculations, and other
relevant groundwater monitoring records will be kept throughout the active life of the facility and the post -closure
care period, including notices and reports of any NC (2L) Groundwater Protection Standard or Interim Maximum
Allowable Concentration (IMAC) exceedances, resampling notifications, and re -sampling results.
2.5 Monitoring Well Decommissioning
Piezometers and wells installed within the MSW waste footprint will be properly decommissioned in accordance
with the procedures for permanent decommissioning, as described in 15A NCAC 2C Rule .0113(b). The
piezometers and wells will be progressively decommissioned as necessary to complete landfill construction
activities. The piezometers and wells that are within the proposed footprint will be overdrilled to remove well
GOLDER

April 12, 2021 20140083.400
construction materials, and then grouted with a cement-bentonite grout. Other piezometers and wells that will
potentially interfere with clearing and construction activities will be grouted in place without overdrilling with a
cement-bentonite grout and removing surface features, such as concrete aprons, protective casings, and stick-
ups. In each case, the bentonite content of the cement-bentonite grout shall be approximately 5%, and a tremie
pipe will be used to ensure that grout is continuously placed from the bottom of the borehole/monitoring well
upward.
If a monitoring well becomes unusable during the monitoring period of the landfill, the well will be decommissioned
in accordance with the procedures described above. Approval from the SWS will be obtained prior to
decommissioning any monitoring well.
For each monitoring well decommissioned, the following information will be provided to the SWS in a report
sealed by a licensed geologist: the monitoring well name, a description of the procedure by which the monitoring
well was decommissioned, the date when the monitoring well was considered to be taken out of service, and the
date when the monitoring well was decommissioned.
3.0 GROUNDWATER MONITORING PROGRAM
The following sections present the monitoring requirements for this facility.
3.1 Detection Monitoring
Groundwater samples for the MSW unit will be analyzed semi-annually for the Appendix I list of constituents as
defined in Rule .1633 (i.e., Detection Monitoring Program), during the life of the facility and the post -closure care
period. Groundwater samples for the closed C&D unit will be analyzed semi-annually for the constituents listed in
NC Appendix I plus mercury, chloride, manganese, sulfate, iron, specific conductance, pH, temperature, alkalinity,
and total dissolved solids (TDS) as defined in Rule .0544(b)(1)(D) under Detection Monitoring, during the post -
closure care period. The current SWS analyte list is included in Appendix A. Note that analytical methods should
be consistent with SWS-846 approved methodology.
3.1.1 Sampling Frequency
Groundwater samples will be collected semi-annually and analyzed for constituents outlined above along with
required field parameters, including but not limited to, pH, conductivity, and temperature. If either the MSW or
C&D units must progress to Assessment Monitoring, notification and sampling will be conducted according to the
schedule specified in Rules .1634 and .0545.
3.1.2 Establishment of Background Data
During each phase of facility development, a minimum of four independent groundwater samples will be collected
from the newly installed monitoring wells (other than replacement wells) or as specified in the permit. Samples
collected from these wells will be analyzed for the detection monitoring constituents. The intent of background
sampling is to collect data to more accurately reflect the natural fluctuations that may occur with these
constituents. The data will be submitted to the SWS after completion of the fourth background sampling event.
3.1.3 Evaluation of Detection Monitoring Data
During the Detection Monitoring Program, the reported constituent concentrations from downgradient compliance
wells will be compared to the groundwater protection standards or GPS (i.e., NC 2L Standards and IMACs). If
inorganic Detection Monitoring parameters are determined to be above the groundwater protection standards, the
reported constituent concentrations from downgradient compliance wells will be statistically compared to the site-
GOLDER

April 12, 2021 20140083.400
specific background standard using approved statistical procedures in .1632(g), (h) and (i) to determine if a
release has occurred.
If a constituent is detected above both its groundwater quality standard and its site -specific background standard,
the following procedures will be followed for the MSW unit:
1. Notify SWS within 14 days of this finding, report to the Division and place a notice in the operating record
indicating which constituents have exceeded groundwater protection standards.
2. Within 90 days, establish an Assessment Monitoring Program meeting the requirements of Rule .1634 or
0545 as appropriate, except as discussed below.
If a constituent is detected above both its groundwater quality standard and its site -specific background standard
at the C&D unit, the following procedures will be followed in accordance with Rule .0545:
1. Within 30 days, submit an Assessment Monitoring Work Plan to the SWS for review.
2. Upon the SWS's approval of the Assessment Monitoring Work Plan, initiate Assessment Monitoring.
The data may be evaluated within 90 days following the exceedance, and wells may be resampled if appropriate,
to determine if the concentration resulted from an error in sampling, analysis, statistical evaluation, or natural
variation in groundwater quality; or a source other than the facility. If it can be demonstrated that one of these
factors occurred, a report [an Alternate Source Demonstration (ASD)] certified by a licensed geologist or engineer
will be submitted to the SWS within 90 days of identifying the suspect GPS and/or statistical increase. A copy of
this report will be placed in the operating record. If the SWS approves the ASD, the Detection Monitoring
Program will be resumed with the required semi-annual sampling and analysis. If SWS does not accept the
demonstration, Assessment Monitoring will be initiated.
3.2 Assessment Monitoring
Assessment Monitoring is required for either waste unit whenever one or more detection monitoring constituents
are detected at concentrations that exceed the GPS and no source of error or naturally occurring condition can be
identified. If an error or naturally occurring condition cannot be identified Assessment Monitoring will be initiated
at the MSW and C&D units as described below.
3.2.1 MSW Unit
In accordance with Rule .1634. within 90 days of triggering the Assessment Monitoring Program, and annually
thereafter, groundwater will be sampled for analysis of the NC Appendix II list of constituents. A minimum of one
groundwater sample will be collected from each downgradient well and submitted for analysis during each
Assessment Monitoring sampling event. However, the NCSWMR allow for petitions to the SWS for an
appropriate subset of wells or a reduction in the NC Appendix II sampling list.
If any NC Appendix II constituents are detected in groundwater from the downgradient wells, a minimum of four
independent samples will be collected from each background and downgradient well to establish background
concentrations for the detected NC Appendix II constituents.
Within 14 days after receipt of the initial or subsequent sampling analytical data, a report identifying the detected
NC Appendix II constituents will be submitted to the SWS, and a notice will be placed in the operating record.
4 GOLDER

April 12, 2021
20140083.400
Background concentrations of any detected NC Appendix II constituents will be established and reported to the
SWS.
Within 90 days, and on at least a semi-annual basis thereafter, the wells will be sampled and analyzed for the NC
Appendix I list plus any additional detected Appendix II constituents. An analytical results report of each sampling
event will be submitted to the SWS and placed in the facility operational record.
The SWS will determine whether site -specific GPS must be established for the facility and may specify a more
appropriate alternate sampling frequency for repeated sampling and analysis for the full set of NC Appendix II
constituents. Groundwater monitoring will continue in one of two ways, based on the results of the Assessment
Monitoring statistical analyses:
1) If the NC Appendix II constituents are at or less than approved GPS for two consecutive sampling events,
the facility may resume Detection Monitoring with the approval of SWS.
2) If one or more NC Appendix II constituents are detected at statistically significant concentrations in excess of
the approved GPS, and no source of error can be identified, within 14 days the SWS will be notified, a notice
will be placed in the operating record, and all appropriate local government officials will be notified. The
facility will proceed to a characterization of the nature and extent of the release (Rule .1634(f)(1)). Next, the
facility operator will initiate an Assessment of Corrective Measures and corrective action and proceed
according to Rules .1635 through .1637. If the facility proceeds to corrective action, a Corrective Action
Monitoring Plan will be submitted to the SWS with the Corrective Action Plan.
3.2.2 C&D Unit
After triggering the Assessment Monitoring, water quality monitoring will be performed in accordance with the
approved Assessment Monitoring Work Plan, which will include at a minimum one sampling event where
monitoring wells are sampled for NC Appendix II constituents. A minimum of one groundwater sample will be
collected from each downgradient groundwater monitoring well and submitted for analysis
If any Appendix II constituents are detected in groundwater from the downgradient wells, a minimum of 4
independent samples will be collected from each background and downgradient groundwater monitoring well to
establish background concentrations for the detected NC Appendix II constituents.
After approval of the Assessment Monitoring Work Plan and completion of an initial complete NC Appendix II
sampling event, and on at least a semi-annual basis thereafter, the wells will be sampled and analyzed for the
Appendix I list plus any additional detected Appendix II constituents. An analytical results report of each sampling
event will be submitted to the SWS and placed in the facility operational record.
The SWS will determine whether site -specific GPS must be established for the facility and may specify a more
appropriate alternate sampling frequency for repeated sampling and analysis for the full set of NC Appendix II
constituents. Groundwater monitoring will continue in one of two ways, based on the results of the assessment
monitoring statistical analyses:
1) If the NC Appendix II constituents are at or less than background values using approved statistical
procedures for two consecutive sampling events, the facility may resume detection monitoring with the
approval of SWS.
4 GOLDER 10

April 12, 2021 20140083.400
2) If one or more NC Appendix II constituents are detected at statistically significant concentrations in
excess of the approved GPS, and no source of error can be identified, a notice will be placed in the
operating record, and all appropriate local government officials will be notified. The facility will proceed
to a characterization of the nature and extent of the release. If the facility proceeds to corrective action,
an Assessment of Corrective Measures will be submitted to the SWS and a remedy will be selected.
3.3 Evaluation and Reporting of Monitoring Data
Reports will be submitted electronically with analytical and field data submitted in the required formats, and be
accompanied by the required Environmental Monitoring Form, which will be signed and sealed by a licensed
geologist in the State of NC. A copy of this form is also included in Appendix A. The reported constituent
concentrations from downgradient compliance wells will be compared to background values, NC 2L Standards
and/or IMACs using a value -to -value comparison. Any exceedances will be identified in the semi-annual
submittals to the SWS and 14-day notifications for new exceedances submitted for the MSW facility.
4.0 GROUNDWATER SAMPLING METHODOLOGY
Groundwater samples will be collected in accordance with Rules .1632 or .0544/.0545 this Water Quality
Monitoring Plan. The most current US EPA Region 4 SESD guidance will be utilized for sampling, as applicable,
including: Management of Investigation Derived Waste (May 2020), Field Equipment Cleaning and
Decontamination (June 2020), and Groundwater Sampling Operating Procedure (April 2017). Procedures for well
purging, sample withdrawal, decontamination methods, and chain -of -custody procedures are outlined below.
Field parameter measurements will be submitted electronically to the SWS in a format consistent with SWS
policies.
A 1 Sample Collection
The procedures for collecting groundwater samples are presented below. The background wells for the MSW unit
(MW 9 and MW-16) and C&D unit (MW-17) will be sampled first, followed by the downgradient compliance wells.
The downgradient wells will be sampled so that the most contaminated well, if one is identified from the previous
sampling event, will be sampled last.
4.1.1 Sampling Frequency
The above -mentioned samples will be collected on a semi-annual basis throughout the life of the facility and post -
closure care period.
4.1.2 Static Water Elevations
The static groundwater level will be measured with an electronic water level indicator, to the nearest 0.01 foot, in
each well prior to sampling. Static groundwater elevations will be calculated from groundwater depth
measurements and top of casing elevations. A reference point will be marked on the top of casing of each well to
ensure the same measuring point is used each time static groundwater levels are measured.
If a monitoring well contains a dedicated pump, the depth -to -water shall be measured without removing the pump.
Depth -to -bottom measurements should be taken from the well construction data and updated when pumps are
removed for maintenance.
GOLDER 11

April 12, 2021
4.1.3 Well Evacuation
20140083.400
Existing monitoring wells in the current compliance network contain dedicated bladder pumps and pumps will be
installed in any new wells. The preferred well evacuation and sampling procedure for the site is a low -flow purge
(micropurge) and sample methodology and procedure. Standard evacuation and sample methodology and
procedures are also outlined below based on the US EPA Groundwater Sampling Operating Procedure (April
2017), as an alternate.
4.1.3.1 Low -Flow Procedures
Monitoring wells may be purged and sampled using the low -flow sampling method in accordance with the
procedures presented below.
Depth -to -water measurements will be obtained using an electronic water level indicator capable of recording the
depth to an accuracy of 0.01 foot. A determination of whether or not the water table is located within the screened
interval of the well will be made. If the water table is not within the screened interval, the amount of drawdown
that can be achieved before the screen is intersected will be calculated and the amount of drawdown should be
minimized to keep the screen from being exposed. The water level should not fall within 1 foot of the top of the
well screen. If the water table is within the screened interval, total drawdown should not exceed 1 foot so as to
minimize the amount of aeration and turbidity.
If the purging equipment is non -dedicated, the equipment will be lowered into the well, taking care to minimize the
disturbance to the water column. If conditions (i.e., water column height and well yield) allow, the pump will be
placed in the uppermost portion of the water column (minimum of 18 inches of pump submergence is
recommended).
The minimum volume/time period for obtaining independent water quality parameter measurements (WQPM) will
be determined. The minimum volume/time period is determined based on the stabilized flow rate and the amount
of volume in the pump and the discharge tubing (alternatively, the volume of the flow cell can be used, provided it
is greater than the volume of the pump and discharge tubing). Volume of the bladder pump should be obtained
from the manufacturer. Volume of the discharge tubing is as follows:
3/8-inch inside diameter tubing: 20 milliliters per foot
1/4-inch inside diameter tubing:10 milliliters per foot
3/16-inch inside diameter tubing: 5 milliliters per foot
Once the volume of the flow -cell or the pump and the discharge tubing has been calculated, the well purge will
begin. The flow rate should be based on historical data for that well (if available) and should not exceed 500
milliliters per minute. The initial round of WQPM should be recorded and the flow rate adjusted until drawdown in
the well stabilizes. Water levels should be measured periodically to maintain a stabilized water level. If the purge
rate has been reduced to 100 milliliters or less and the head level in the well continues to decline, the required
water samples should be collected following stabilization of the WQPM, based on the criteria presented below.
If neither the head level nor the WQPM stabilize, a passive sample should be collected. Passive sampling is
defined as sampling before WQMP have stabilized if the well yield is low enough that the well will purge dry at the
lowest possible purge rate (generally less than 100 milliliters per minute).
GOLDER 12

April 12, 2021 20140083.400
WQPM stabilization is defined as follows: pH (+/- 0.2 S.U.), conductance (+/- 5% of reading), temperature
(+/- 0.20Celsius or C), and dissolved oxygen or DO [+/- 20% of reading or 0.2 milligrams per liter or mg/L
(whichever is greater)]. Oxidation reduction potential (ORP) will be measured and ideally should also fall within
+/- 10 mV of reading; however, this is not a required parameter. At a minimum, turbidity measurements should
also be recorded at the beginning of purging, following the stabilization of the WQPM, and following the collection
of the samples. The optimal turbidity range for micropurging is 10 Nephelometric Turbidity Units (NTU) or less.
Turbidity measurements above 10 NTU are generally indicative of an excessive purge rate or natural conditions
related to excessive fines in the aquifer matrix.
Stabilization of the WQPM should occur in most wells within five to six rounds of measurements. If stabilization
does not occur following the removal of a purge volume equal to three well volumes, a passive sample will be
collected.
The direct -reading equipment used at each well will be calibrated in the field according to the manufacturer's
specifications prior to each day's use and checked at a minimum at the end of each sampling day. Calibration
information should be documented in the instrument's calibration logbook and the field book.
Each well is to be sampled immediately following stabilization of the WQPM. The sampling flow rate must be
maintained at a rate that is less than or equal to the purging rate. For volatile organic compounds (VOCs), lower
sampling rates (100 - 200 milliliters/minute) should be used. Final field parameter readings should be recorded at
the time of sampling.
4.1.3.2 Standard Evacuation Procedures
Monitoring wells may be evacuated with a submersible pump or a disposable bailer. If the pump is used for
multiple wells, it and any other non -dedicated equipment will be decontaminated before use and between use at
each well.
A low yield well (one that yields less than 0.5 gallon per minute) will be purged so that water is removed from the
bottom of the screened interval. Low -yield wells will be evacuated to dryness once. However, at no time will a
well be evacuated to dryness if the recharge rate causes the formation water to vigorously cascade down the
sides of the screen and cause an accelerated loss of VOCs. Upon recharging of the well and no longer than 24
hours from completing the purge, the first sample will be field-tested for pH, temperature, specific conductivity,
and turbidity. Samples will then be collected and containerized in the order of the volatilization sensitivity of the
target constituents.
A high -yield well (one that yields 0.5 gallon per minute or more) will be purged so that water is drawn down from
above the screen in the uppermost part of the water column to ensure that fresh water from the formation will
move upward in the screen. If a pump is used for purging, a high yield well should be purged at less than 4
gallons per minute to prevent further well development.
A minimum of three casing volumes will be evacuated from each well prior to sampling. An alternative purge will
be considered complete if the monitoring well goes dry before removing the calculated minimum purge volume.
The well casing volume for a 2-inch well will be calculated using the following formula:
Vc (gallons) = 0.163 x hW
where:
GOLDER 13

April 12, 2021
Vc = volume in the well casing = (dc2/4) x 3.14 x hW x 7.48 gallons/cubic foot
dc = casing diameter in feet (dc = 0.167)
hW = height of the water column (i.e., well depth minus depth to water)
20140083.400
The purge water will be disposed of on the ground surface at least 10 feet downgradient of the monitoring well,
unless field characteristics suggest the water will need to be disposed of otherwise.
The bailers will be equipped with a check valve and bottom -emptying device. The bailer will be lowered gently
into the well to minimize the possibility of degassing the water.
Field measurements of temperature, pH, specific conductance, and turbidity will be made before and after sample
collection as a check on the stability of the groundwater sampled over time. Precautions to minimize turbidity will
be taken. The direct -reading equipment used at each well will be calibrated in the field according to the
manufacturer's specifications prior to each day's use and checked at a minimum at the end of each sampling day.
Calibration information should be documented in the instrument's calibration logbook and the field book.
4.1.3.3 Collection
Samples will be collected and containerized in the order described below.
■ VOCs (SW- 846 Method 8260)
■ Semi -Volatile Organic Compounds (SW- 846 Method 8270)
Herbicides (SW-846 Method 8151)
Pesticides (SW- 846 Method 8080)
Polychlorinated Biphenyls (PCBs; SW-846 Method 8082)
Cyanide and Sulfide
Total Metals
Field and General Chemistry Parameters (as applicable)
Samples will be transferred directly from field sampling equipment into pre -preserved, laboratory -supplied
containers.
4.1.3.4 Decontamination
Non -dedicated field equipment that is used for purging or sample collection shall be cleaned with a phosphate -
free detergent, and triple -rinsed with distilled water. Any disposable tubing used with non -dedicated pumps
should be discarded after use at each well. Clean, chemical -resistant nitrile gloves will be worn by sampling
personnel during well evacuation and sample collection. Measures will be taken to prevent surface soils, which
could introduce contaminants into the well.
4.2 Sample Preservation and Handling
Upon containerizing groundwater samples, the samples will be packed into pre -chilled, ice -filled coolers and either
hand -delivered or shipped overnight by a commercial carrier to a NC -certified laboratory for analysis. Sample
GOLDER 14

April 12, 2021 20140083.400
preservation methods will be used to retard biological action and hydrolysis, as well as to reduce sorption effects.
These methods will include chemical preservation, cooling/refrigeration at 4° C, and protection from light.
4.3 Chain -of -Custody Program
The chain -of -custody program will allow for tracing sample possession and handling from the time of field
collection through laboratory analysis. The chain -of -custody program includes sample labels, sample seal, field
logbook, and chain -of -custody record.
4.3.1 Sample Labels
Legible labels sufficiently durable to remain legible when wet will contain the following information:
Site and sample identification number
Monitoring well number or other location
Date and time of collection
Name of collector
Parameters to be analyzed
■ Preservative, if applicable
4.3.2 Sample Seal
The shipping container will be sealed to ensure that the samples have not been disturbed during transport to the
laboratory. The tape is labeled with instructions to notify the shipper if the seal is broken prior to receipt at the
laboratory.
4.3.3 Field Logbook
The field logbook will contain sheets documenting the following information:
Identification of the well
Well depth
Field meter calibration information
Static water level depth and measurement technique
Purge volume (given in gallons)
■ Time well was purged
■ Date and time of sample collection
■ Well sampling sequence
■ Types of sample containers used and sample identification numbers
Preservative used
Field analysis data and methods
GOLDER 15

April 12, 2021
Field observations on sampling event
Name of collector(s)
■ Climatic conditions including air temperatures and precipitation
4.3.4 Chain -of -Custody Record
20140083.400
The chain -of -custody record is required for tracing sample possession from time of collection to time of receipt at
the laboratory. A chain -of -custody record will accompany each individual shipment. The record will contain the
following information:
■ Sample destination and transporter
■ Sample identification numbers
■ Signature of collector
■ Date and time of collection
■ Sample type
Identification of well
Number of sample containers in shipping container
■ Parameters requested for analysis
■ Signature of person(s) involved in the chain of possession
■ Inclusive dates of possession
■ Internal temperature of shipping container upon opening in laboratory (noted by the laboratory)
A copy of the completed chain -of -custody form will accompany the shipment and will be returned to the shipper
after the shipping container reaches its destination. The chain -of -custody record will also be used as the analysis
request sheet.
4.4 Analytical Procedures
A laboratory certified by the North Carolina Department of Environmental Quality (NC DEQ) will be utilized for
analysis of the groundwater and surface water samples. Analyses will be performed in accordance with United
States Environmental Protection Agency (US EPA) SW-846 methods in accordance with the US EPA guidance
document (US EPA 1997). The monitoring parameters are listed in Appendix A. Alternate SW-846 methods may
be used if they have the same or lower reporting limits. The laboratory must report any detection of any
constituent to the method detection limit (MDL) and identify the practical quantitation limit (PQL). The MDL should
be at or below established groundwater and surface water standards, where applicable.
The laboratory certificates -of -analyses shall, at a minimum, include the following information:
Narrative: Must include a brief description of the sample group (number and type of samples, field and
associated lab sample identification numbers, preparation and analytical methods used). The data reviewer
shall also include a statement that all holding times and Quality Control (QC) criteria were met, samples
GOLDER 16

April 12, 2021 20140083.400
were received intact and properly preserved, with a brief discussion of any deviations potentially affecting
data usability. This includes, but is not limited to, test method deviation(s), holding time violations, out -of -
control incidents occurring during the processing of QC or field samples and corrective actions taken, and
repeated analyses and reasons for the re -analyses (including, for example, contamination, failing surrogate
recoveries, matrix effects, or dilutions). The narrative shall be signed by the laboratory director or authorized
laboratory representative, signifying that all statements are true to the best of the reviewer's knowledge, and
that the data meet the data quality objectives as described in this plan (except as noted). One narrative is
required for each sample group.
Original Chain -of- Custody Form.
Target Analyte List (TAL)/Target Compound List (TCL): The laboratory shall list all compounds for which the
samples were analyzed. The TAL/TCL is typically included as part of the analytical reporting forms.
■ Dilution factors with a narrative of the sample results, including the reasons for the dilution (if any).
■ Blank Data: For organic analyses, the laboratory shall report the results of any method blanks, reagent
blanks, trip blanks, field blanks, and any other blanks associated with the sample group. For inorganic
analyses, the laboratory shall provide the results of any preparation or initial calibration blanks associated
with the sample group.
QC Summary: The laboratory will provide summary forms detailing laboratory QC sample results, which
include individual recoveries and relative percent differences (if appropriate) for the following Quality
Assurance (QA)/QC criteria: surrogates, Matrix Spike (MS) analyses, MS Duplicate analyses, Laboratory
Control Standard (LCS), and sample duplicate analyses. QC control limits shall also be reported; if any QC
limits are exceeded, a flag or footnote shall be placed to indicate the affected samples.
Additional QA data and/or other pertinent data may be reported as requested by the owner/operator of the facility.
4.5 Quality Assurance and Quality Control Program
A field blank may be collected and analyzed during each monitoring event to verify that the sample collection and
handling process has not affected the quality of the samples. The field blank will be prepared in the field and
exposed to the sampling environment. As with all other samples, the time of the blank exposure will be recorded
so that the sampling sequence is documented. The field blank will be analyzed for the same list of constituents as
the groundwater samples.
The assessment of blank analysis results will be in general accordance with US EPA guidance documents (US
EPA 1993 and 1994). No positive sample results will be relied upon unless the concentration of the compound in
the sample exceeds ten times the amount in any blank for common laboratory contaminants, or five times the
amount for other compounds. If necessary, re -sampling will be performed to confirm or refute suspect data; such
re -sampling will occur within the individual compliance monitoring period. The "B" qualifier designates that the
reported detection is considered to represent cross -contamination and that the reported constituent is not
considered to be present in the sample at the reported concentration.
5.0 STATISTICAL METHODS
Statistical analysis of groundwater monitoring data is not required by regulation for landfill compliance. However,
it is allowed by regulation for the purposes of determining naturally occurring (i.e., background) concentrations of
4 GOLDER 17

April 12, 2021 20140083.400
constituents. If utilized, statistical evaluation of groundwater monitoring data will be performed in compliance with
Rule .1632 (g), (h), and (i) and the US EPA's Statistical Analysis of Groundwater Monitoring Data at RCRA
Facilities, Unified Guidance (March 2009). Statistics will not be utilized for the water quality and indicator
parameters, which are collected for qualitative and informational purposes only.
Intra-well statistical comparisons may be used to evaluate the inorganic groundwater data, if appropriate. Intra-
well monitoring does not require background monitoring at upgradient wells or pooling of the data because water
chemistry of a well is compared to itself over time. However, upgradient well(s) are useful for detecting any
potential offsite influences on the monitoring network and will be monitored. Intra-well monitoring is generally
preferable to inter -well monitoring for lined facilities because it eliminates the spatial component of natural
groundwater chemistry variability; this spatial component can comprise a significant portion of the total variability
that must be accounted for by the statistical methodology.
SURFACE WATER MONITORING (RULE .0602)
In accordance with Rule .0602 of the NCSWMR, surface water monitoring locations have been established to
monitor surface water quality at the facility. Four surface water locations (SW-1 through SW-4) will be monitored
at the MSW unit. An additional surface water location (SW-5) monitors surface water downstream of the C&D
unit. The locations of monitoring locations are shown on Figure 1.
The upstream monitoring point for both the MSW and C&D units (SW-1) is along Second Creek. Downstream
monitoring points SW-3 and SW-4 are downstream monitoring locations along unnamed tributaries to Second
Creek. Downstream monitoring point SW-5 monitors Second Creek downgradient of the C&D unit, and SW-2
monitors Second Creek downstream of both units near the property line. Samples will only be collected at each
location if flowing water is observed during the sampling event. Samples will be collected in accordance with the
US EPA SESD's Surface Water Sampling Operating Procedures (December 2016).
ocation
Upstream (Second Creek)
Unit(s) Monitored
MSW/C&D
urface Water Monitoring
Vpoint
SW-1
SW-2
Downstream (Second Creek)
MSW/C&D
SW-3
Downstream (Unnamed Tributary)
MSW
SW-4
Downstream (Unnamed Tributary)
MSW
SW-5
Downstream (Second Creek)
C&D
The surface water monitoring points will be sampled semi-annually for analysis of NC Appendix I constituents,
and pH, specific conductivity, and temperature. The results of the analysis of the surface water data will be
submitted to the SWS at least semi-annually in conjunction with the groundwater data. Data will be compared to
applicable NC surface water standards, and those comparisons will be included with each submittal.
7.0 REFERENCES
The references cited below were used in the preparation of this report and may or may not be referenced in the
text.
GOLDER 18

April 12, 2021
20140083.400
Butler, R.J., and Secor, Jr., D.T., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,
V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, pp. 59-78.
Buxton Environmental, Inc., September 2011, Design Hydrogeologic Report, Proposed Phase IV Landfill
Subtitle D Municipal Solid Waste Landfill Expansion, Rowan County Landfill.
Golder Associates NC, Inc., March 2020. Water Quality Monitoring Report, First Semi -
Annual 2020 Sampling Event, Active Rowan County Landfill, Permit No. 80-03, Rowan County,
North Carolina. NCGS, 1985. Geologic Map of North Carolina. Scale1:500,000.
S&ME, October 2005. Water Quality Monitoring Plan —Rowan County Landfill, Woodleaf, NC.
US EPA. 1996. Low -Flow (Minimal Drawdown) Ground -Water Sampling Procedures.
Puls, Robert W. and Barcelona, Michael J.
US EPA. 1993. Region III Modifications to Laboratory Data Validation Functional Guidelines
for Evaluating Inorganic Analyses, EPA 540/R-01-008. April.
US EPA, 1994. Region III Modifications to National Functional Guidelines for Organic Data
Review Multi -Media, Multi -Concentration (OLM01.0-OLM00.9), EPA 540/R-99-008.
September.
US EPA. 1986. RCRA Ground Water Monitoring Technical Enforcement Guidance Document
(TEGD).
US EPA Region 4, 2008. Science and Ecosystem Support Division Design and Installation of Monitoring Wells.
February
US EPA Region 4, 2020. Science and Ecosystem Support Division Field Equipment Cleaning and
Decontamination. June
US EPA Region 4, 2017. Science and Ecosystem Support Division Groundwater Sampling Operating Procedures
April
US EPA Region 4, 2020. Science and Ecosystem Support Division Management of Investigation Derived Waste.
May
US EPA Region 4, 2016. Science and Ecosystem Support Division Surface Water Sampling Operating
Procedures. December
US EPA. 2009. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, Unified Guidance, EPA
530-R-09-007. March
US EPA. June 1997. SW-846 Methods for Evaluating Solid Waste, Physical/Chemical Methods,
Final Update III.
4 GOLDER 19

April 12, 2021
Professional Certification
20140083.400
The Water Quality Monitoring Plan for the Rowan County active MSW and closed C&D units at this facility has
been prepared by a qualified geologist who is licensed to practice in the State of North Carolina. The plan has
been prepared based on first-hand knowledge of site conditions and familiarity with North Carolina solid waste
rules and industry standard protocol. This certification is made in accordance with North Carolina Solid Waste
Regulations, indicating this Water Quality Monitoring Plan should provide early detection of any release of
hazardous constituents to the uppermost aquifer, so as to be protective of public health and the environment. No
other warranties, expressed or implied, are made.
GOLDER ASSOCIATES NC, INC.
Rachel P. Kirkman, PG
Principal and Senior Consultant
Not valid unless this document bears the seal of the above -mentioned licensed professional.
Engineering Lic. No. C-28621Geology Lic. No_ C-399
Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity.
Golder and the G logo are trademarks of Golder Associates Corporation.
h11p7.11golpara5svciales sharepoint.t.OmlSoesol 29mprojact files/6 IeChnzp1 worWphsse 400 environmental monitoring plan updalesMgmp rev2lrowan county 13003 wgmp 2021 ray.docx
GOLDER 20

TABLE

April 2021
Table 1
Summary of Groundwater Monitoring Well Construction Information
Rowan County Landfill (Active MSW and Closed C&D Facilities)
Permit No. 80-03
Project No. 20140083
Well
Identification
Northing
Easting
Date of
Construction
Ground
Surface
Elevation
(ft AMSL)
TOC
Elevation
(ft AMSL)
Well
Depth
(ft bgs)
Well
Diameter
(inches)
Screened
Interval
(ft AMSL)
Geology of Screened
Interval
Well Type
MW-1
1536611.82
733038.15
-
715.00
717.50
27.0
2
690.50 - 700.50
Partially Weathered Rock
MSW Compliance Monitoring Point
MW-6
1538418.99
732034.90
-
665.55
668.15
53.7
2
614.45 - 619.45
-
Water Level Only
MW-7
1538340.33
731108.57
-
660.60
663.14
28.5
2
634.64 - 644.64
-
MSW Compliance Monitoring Point
MW-9
1536844.42
733960.05
-
698.63
738.13
39.5
2
698.63 - 708.63
-
MSW Compliance Monitoring Point
MW-11
1538285.50
732876.62
-
680.94
683.27
23.9
2
659.32 - 669.32
-
MSW Compliance Monitoring Point
MW-12
1538299.11
733113.18
-
682.94
685.88
22.6
2
663.28 - 673.28
-
MSW Compliance Monitoring Point
MW-13
1538303.87
733395.18
-
694.31
696.33
24.5
2
671.80 - 681.80
-
MSW Compliance Monitoring Point
MW-16
1539006.79
734292.09
-
750.50
752.69
56.7
2
695.99 - 705.99
-
MSW Compliance Monitoring Point
MW-17
1539992.75
733886.30
-
752.42
755.36
55.0
2
697.42 - 712.42
-
C&D Compliance Monitoring Point
MW-18R
1540067.64
732809.77
07/24/07
658.30
661.39
30.0
2
628.30 - 643.30
Saprolite/PWR
C&D Compliance Monitoring Point
MW-19
1540348.55
732908.08
-
650.47
653.45
20.0
2
630.47 - 645.47
-
C&D Compliance Monitoring Point
MW-20
1536619.71
732537.54
04/05/05
713.90
717.00
33.0
2
680.9 - 695.9
Saprolite/PWR
MSW Compliance Monitoring Point
MW-23
1537990.80
732183.59
04/08/05
694.29
697.25
38.5
2
655.79 - 670.79
Saprolite
MSW Compliance Monitoring Point
MW-23A
1537990.80
732173.30
04/11/05
693.82
696.91
68.5
2
625.32 - 640.32
PWR
Water Level Only
MW-24R
1537954.02
732801.79
04/12/11
714.39
717.10
43.6
2
686.39 - 671.39
Saprolite/PWR
MSW Compliance Monitoring Point
MW-25
1536603.20
731757.27
04/15/11
704.98
707.46
40.6
2
679.42 - 664.42
-
MSW Compliance Monitoring Point
MW-26
1537383.59
731382.04
04/21/11
694.80
697.30
38.9
2
670.88 - 655.88
-
MSW Compliance Monitoring Point
MW-27
1538076.45
731358.39
04/26/11
661.46
663.90
18.5
2
657.96 - 642.96
-
MSW Compliance Monitoring Point
MW-27A
1538084.39
731350.62
04/25/11
661.27
664.02
64.3
2
602.27 - 597.27
-
Water Level Only
MW-28
1538097.33
731753.26
04/26/11
679.23
682.03
26.2
2
668.02 - 653.02
-
Water Level Only
MW-28R
731882.07
1538013.18
07/11/17
683.04
685.26
35.3
2
666.04 - 651.04
-
MSW Compliance Monitoring Point
Notes:
ft AMSL = feet above mean sea level
ft bgs = feet below ground surface
TOC = Top of Well Casing Elevation
Monitoring wells MW-6, MW-27A, and MW 28 are monitored for water levels only.
4 GOLDER
Page 1 of 1

FIGURES

OLD
EXISTING LANDFILL
SEDIMENT ENTRANCE
BASIN
—
I
ro
// O MW-9
10OO ,�071P9E3-�-
II I-' IIII o
I
MMW-5A o
\UPI I F- MW-5 \ O
PHASEI
MSW LANDFILL o
EXISTING I ♦-
SEDIMENT BASIN I ..0As�
'
702.4 M _� (V�� � ♦♦
oo
2�5'1
♦ ♦ I PHASE III
6MSW LANDFILL
-
6 I I 84 800 i
I I
�♦'o-
I ❑ I I
I I
68( I ♦ _ � �
I � �
I �
1
1
1 ♦ -' ♦ PHASE IV
6 W-280 MSW LANDFILL I 1 -
1
I 1 ,✓
1 �
1 1 4p
1 1
1 e s
r
1
1 1 0
- INV-
' PROPERTY
i LINE
D
6.07
fA
I -♦♦♦ 1 --' 600
OMW-13 + I� ' ♦�IIIIII I `I(.,I- �,' . ♦�' / ♦- ' ♦I � _-
L .-s' ♦y�'�-I_ - T-\ V$ ` VA�♦E\AD-♦,♦i ♦'' ❑'I0.11 j��♦/
�1 - a♦ \'�-°,
- -_-
�' - -♦\�-- �''
682.98 CLLOASNDFILL �
CLOSEDIy♦'�' LCIDLANDFILL
MW-18 FUTURE .4
:t♦
MS1680.1WLANDFILL
(PHASES VI TO /' '� i-
665q-U0�
EXISTING
IX) ♦ SEDIMENT
M'f
EN'
T
BASIN
MW
676.24 ♦64s.92�
MAINTENANCE
BILIUDNGo
sw-5
4* 41
EXSTN
SEDIMENT
/
'g
-�2
BASIN ♦ J*
LEGEND
---- ,>
EXISTING TOPOGRAPHIC CONTOUR
- -
FACILITY BOUNDARY
— — — —
APPROXIMATE LIMITS OF WASTE
- 650
GROUNDWATER SURFACE CONTOURS
APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT
11
O6647.7.56
EXISTING GROUNDWATER MONITORING WELL WITH GROUNDWATER ELEVATION
❑SW-4
SURFACE WATER MONITORING POINT
COMPLIANCE METHANE MONITORING POINT
ASSESSMENT METHANE MONITORING POINT
NM
NOT MEASURED
®
FRENCH DRAIN MONITORING POINT
I ,♦' - �� / / /� o Q / NOTES
1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET.
N - �- /� 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET.
e, ✓ I ��� _ /
3. GROUNDWATER ELEVATIONS MEASURED ON JANUARY 16, 2020.
iGROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND
4 EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS.
THEREFORE, !t .' -x e� — -F = r� - CONDTIONS, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER
%
-
1\ \ �0 / I.�a� 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE \Fc----
,i� ✓ u}J - - u,r CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT
_FRENCH DRAIN \ ; - .� - - - --�; I` ELEVATION ABOVE SEA LEVEL THE GROUNDWATER FLOW DIRECTION IS GENERALLY
-L - - SAMPLE POINT 100-YEAR PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS SIMILAR TO THE RELATIONSHIP
! h - J - f�- 4 - • - - -
` y ' r� 1 �T7 , "" �; f Y=-� BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS.
O647.56
MW-7
I TOPOGRAPHY BOUNDARY
( (SEE REFERENCE NOTE)
I
EXISTING
- _ SEDIMENT
BASIN
I
e ` -
�� I
i
11
TO SW-1
(SEE NOTE 6)
r _- --� F - 6. SURFACE WATER MONITORING POINT SW-1 IS APPROXIMATELY 550 FEET OFF THE MAPPING LIMITS
SHOWN AND IS COLLECTED FROM SECOND CREEK
7 7
7. MONITORING WELLS MW-23A, MW-27A, MW-28 AND MW-6 ARE UTILIZED FOR WATER LEVEL
MONITORING ONLY.
8. THE LOCATION OF THE FRENCH DRAIN MONITORING POINT IS APPROXIMATE.
f \ zn..�, i �r - 9. MW-28R WAS INSTALLED JULY 11, 2017 TO REPLACE MW-28. MW-28 WILL CONTINUE TO BE UTILIZED
SITE LOCATION �g r FOR WATER LEVEL MONITORING.
A� Y Ii 1
REFERENCE
1. EXISTING CONDITIONS INSIDE OF DASHED LINE COMPILED BY CARTOGRAPHIC AERIAL MAPPING,
INC. USING PHOTOGRAMMETRIC METHODS, FROM AERIAL PHOTOGRAPHY DATED JUNE 26, 2020.
EXISTING CONDITIONS OUTSIDE OF DASHED LINE PROVIDED BY S&ME ENGINEERING, INC., DATE
- -ti UNKNOWN.
2. PROPERTY BOUNDARY TAKEN FROM CAD FILE TITLED, "WELLS.DWG," PROVIDED BY HDR INC.
-mot
0 250 500
SITE LOCATION MAP
" = SCALE FEET
110,000'
CLIENT
ROWAN COUNTY
CONSULTANT
PG C-399 YYYY-MM-DD
2020-11-11
PREPARED
BPG
G
G O L D E R DESIGN
RPK
REVIEW
DYR
GOLDER ASSOCIATES NC, INC. APPROVED
RPK
PR'
ROWAN COUNTY ACTIVE AND CLOSED LANDFILLS
PERMIT NO. 80-03
ROWAN COUNTY, NORTH CAROLINA
TITLE
WATER QUALITY MONITORING PLAN
PROJECT No.
20-140083 400
FIGURE
0 1

1 /4" WEEP HOLE
GROUND
SURFACE
0.5
BENTONITE
LAYER
(2' MIN.)
BOTTOM CAP
11
3 j CLIENT
ROWAN COUNTY
CONSULTANT YYYY-MM-DD
DESIGNED
G O L D E R PREPARED
REVIEWED
APPROVED
2020-11-11
RPK
BPG
PROTECTIVE CASING WITH
LOCK
SURVEYOR'S PIN
(FLUSH
MOUNT)
CONCRETE WELL
APRON
MINIMUM 2'x2' SQUARE
° a ° °°°
PAD SLOPED TO
DRAIN
v
°
CONTINUOUS POUR
- a
CONCRETE CAP AND
WELL
APRON
-v
CEMENT AND SODIUM
BENTONITE
MIXTURE
WELL DIAMETER 2"
PVC THREADED
BOREHOLE DIAMETER
6" MINIMUM
FILTER PACK 20-40 SAND (2'
OR LESS ABOVE SCREEN)
POTENTIOMETRIC SURFACE
SCREENED INTERVAL 0.010
INCH SLOT MANUFACTURED
SCREEN
PROJECT
ROWAN COUNTY ACTIVE AND CLOSED LANDFILLS
PERMIT NO. 80-03
ROWAN COUNTY, NORTH CAROLINA
TITLE
TYPICAL GROUNDWATER MONITORING WELL SCHEMATIC
DYR PROJECT NO.
RPK 20-140083
REV. FIGURE 4
0 2 FF

APPENDIX A
REGULATORY REQUIREMENTS

DENR USE ONLY ❑Paper Report [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #:
NC DENR I I Environmental Monitoring
Division of Waste Management - Solid Waste Reporting 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 13B .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.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name:
E-mail:
Phone:
NC Landfill Rule: Actual sampling dates (e.g.,
Facility name: Facility Address: Facility Permit # (.0500 or. 1600) October 20-24, 2006)
Environmental Status: (Check all that apply)
❑ Initial/Background Monitoring ❑ Detection Monitoring ❑ Assessment Monitoring ❑ Corrective Action
of data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells ❑
Groundwater monitoring data from private water supply wells ❑
Leachate monitoring data ❑
Surface water monitoring data
Methane gas monitoring data
Corrective action data (specify)
Other(specify)
Notification attached?
B 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.
Facility Representative Name (Print) Title (Area Code) Telephone Number
Signature
Facility Representative Address
Date
Affix NC Licensed/ Professional Geologist Seal
NC PE Firm License Number (if applicable effective May 1, 2009)
Revised 6/2009

NC Solid Waste Section
Environmental Monitoring List
NC Solid Waste Section Environmental Monitoring±
Groundwater Protection Compliance Standards - Constituents List
(updated October15, 2018)
All units are ug/L unless otherwise noted.
NE = Not Established
Groundwater Protection Standards 1
CAS RN Z j SWS ID' CHEMICAL NAME 2L
i DEQ
Calculated
j 2L IMAC MCL GWP Std Reference List`
67-64-1
107-13-1
3 Acetone 6000
8 Acrylonitrile NE
13 Antimony NE
14 Arsenic 30
15 Barium 700
16 Benzene 1
23 Beryllium NE
28 Bromochloromethane; Chlorobromethane NE
29 Bromodichloromethane; Dibromochloromethane 0.6
30 Bromoform; Tribromomethane 4
34 Cadmium 2
35 Carbon disulfide 700
36 Carbon tetrachloride 0.3
39 Chlorobenzene so
41 Chloroethane; Ethyl chloride 3000
44 Chloroform; Trichloromethane 70
51 Chromium 10
I _
53 Cobalt NE
54 Copper 1000
66 Dibromochloromethane; Chlorodibromomethane 0.4
67 1,2-Dibromo-3-chloropropane; DBCP 0.04
68 1,2-Dibromoethane; Ethylene dibromide; EDB 0.02
1
69 o-Dichiorobenzene;1,2-Dichlorobenzene -1 20
71 p-Dichlorobenzene; 1,4-Dichlorobenzene 6
73 trans-1,4-Dichloro-2-butene NE
75 1,1-Dichloroethane; Ethyldidene chloride 6
76 1,2-Dichloroethane; Ethylene dichloride 0.4
77 1,1-Dichloroethylene; 1,1-Dichloroethene; 350
NE
NE
NE
Appendix I
Appendix I
NE
NE
NE
7440-36-0
1
6
NE
A2ften ix
A n ix1
Aooendix I
A en ixI
ARgen ix I
Appendix I
Appendix I
Appendix I
AUSndix I
Appendix I
AWLgndix I
AooendixI
Appendix I
Aooendix 1
Appendix I
Ap2endix I
AooendixI
Aooendix I
7440-38-2
NE
10
NE
7440-39-3
NE
2000
NE
71-43-2
7440-41-7
NE
5
NE
4
4
NE
74-97-5
75-27-4
75-25-2
7440-43-9
NE
NE
0.6
NE
80
NE
NE
NE
80
NE
5
NE
75-15-0
NE
NE
NE
56-23-5
NE
5
NE
108-90-7
NE
100
NE
75-00-3
NE
NE
NE
67-66-3
NE
80
NE
7440-47-3
NE
100
NE `
7440-48-4
i
NE
_
NE
7440-50-8
NE
1300
NE
124-48-1
96-12-8
106-93-4
95-50-1
106-46-7
NE
80
NE
NE
0.2 1
NE I
Aooendix I
NE
0.05
NE i
Appendix I
ARpendix I
Appendix I
NE
600
NE
NE
75
NE
110-57-6
75-34-3
107-06-2
75-35-4
NE
NE
NE
A n gxI
NE
NE
NE
Aooendix I
NE
5
NE I
Appendix
NE
7
NE
Aooendix)
Page 1 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards)
CAS RN z
156-59-2
SWS ID CHEMICAL CHEMICAL NAME
Vinylidene chloride cis-1,2-Dichloroethylene; cis-1,2-
78 Dichloroethene
79 trans-1,2-Dichloroethylene;trans-1,2-Dichloroethene
82 1,2-Dichloropropane
86 cis-1,3-Dichloropropene
DEQ
Calculated
2L 21. [MAC MCL GWP Std Reference List`
70 NE 70 NE I ADDendix I
156-60-5
100
NE
100
NE
ARRendix1
78_87-5
10061-01-5
0.6
NE
5
NE
A nix I
0.4
NE
NE
NE
ADDendix 1
10061-02-6
87
trans-1,3-Dichloropropene
0.4
NE
NE
NE
ADDendix I
100-41-4
110
Ethylbenzene
600
NE
700
NE
AROnclix1
591-78-6
124
2-Hexanone; Methyl butyl ketone
NE
40
1 NE
NE
ARRCndix I
7439-92-1
131
Lead
is
NE
15
NE
A en ix1
74-83-9
136
Methyl bromide; Bromomethane
NE
10
NE
NE
&WSndix 1
74-87-3
137
Methyl chloride; Chloromethane
3
NE
NE
NE
ADDendix 1
74-95-3
75-09-2
78-93-3
139
Methylene bromide; Dibromomethane
NE
5
70
NE
NE
5
NE
NE
Appendix I
ADDendix 1
140 Methylene chloride; Dichloromethane
141 Methyl ethyl ketone; MEK; 2-Butanone
142 Methyl iodide; Iodomethane
147 4-Methyl-2-pentanone; Methyl isobutyl ketone
152Nickel
183 t Selenium
184 Silver
186 Styrene
190 1,1,1,2-Tetrachloroethane
191 1,1,2,2-Tetrachloroethane
Tetrachloroethylene; Tetrachloroethene;
192 Perchloroethylene
4000
NE
NE
NE
ADDendix I
74-88-4
NE
NE
NE
NE
Agpencliox 1
108-10-1
NE
100
NE
NE
Appendix I
Appendix I
Appendix I
A nix 1
Appendix
Appendix 1
ADoendix I
-
A2Rgn Ix
ADDendix I
744D-02-0
100
NE
NE
NE
7782-49-2
20
NE
50
NE
7440-22-4
20
NE
NE
NE
100-42-5
70
NE
100
NE
630-20-6
79-34-5
127-18-4
NE
1
NE
NE
0.2
NE
NE
NE
0.7
NE
NE
0.2 1
5 NE
2 NE
1000 NE
200 NE
7440-28-0
108-88-3
71-55-6
194 Thallium
196 Toluene
200 1,1,1-Trichloroethane; Methylchloroform
201 Trichloroethylene; Trichloroethene
202 1,1,2-Trichloroethane
600
NE j
ARRgndixI
200
NE
Appendix 1
A nix I
ADDendix 1
79-01-6
3
NE
5
NE
79-00-5
NE 1
2000
0.6
NE
5
NE
NE
75-69-4
203 Trichlorofluoromethane; CFC-11
206 1,2,3-Trichloropropane
209 Vanadium
210 Vinyl acetate
211 Vinyl chloride; Chloroethene
NE
A en ix 1
Appendix I
96-18-4 1
0.00s
NE
NE
NE
7440-62-2
NE
0.3
NE
NE
ARRen ix I
108-05-4
NE
88
NE I
NE
ADoendix I
75-01-4
0.03
NE
2 1
NE
A nix I
Page 2 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards 1
CAS RN Z
7440-66-6
1330-20-7
! I DEQ Calculated
SWS ID a CHEMICAL NAME 2L 2L IMAC MCL GWP Std Reference List`
213 Zinc 1000 NE NE NE _Appendix I
346 Xylene (total) 500 NE 10000 NE Appendix
83-32-9
208-96-8
1 Acenaphthene
2 Acenaphthylene
80
NE
NE
NE
Appendix II
Appendix II
200
NE
NE
NE
75-05-8
4
Acetonitrile; Methyl cyanide
NE
NE
NE
NE
Appendix II
98-86-2
5
Acetophenone
NE
700
NE
NE
Appendix II
53-96-3
6
2-Acetylaminofluorene; 2-AAF
NE
NE
NE
NE
Appendix II
107-02-8
7
Acrolein
NE
4
NE
NE
Appendix II
309-00-2
9
10
Aldrin
Ally[ chloride
NE
0.002
NE
NE
Appendix II
107-05-1
NE
NE
NE
NE
NE
NE
Appendix II
92-67-1
11 4-Aminobiphenyl
12 Anthracene
17 Benzo[a]anthracene; Benzanthracene
18 Benzo[b]fluoranthene
19 Benzo[k]fluoranthene
20 Benzo[ghi]perylene
21 Benzo[a]pyrene
22 Benzyl alcohol
24 alpha-BHC
25 beta-BHC
NE
NE
Appendix II
120-12-7
2000
NE
NE
NE
NE
NE
NE
700
0.006
0.02
NE
NE
NE
NE
Appendix II
Appendix II
Appendix II
56-55-3
0.05
0.05
0.5
200
0.005
205-99-2
NE
NE
207-08-9
NE
NE
Appendix II
191-24-2
NE
NE
Appendix II
50-32-8
1 0.2
NE
NE
NE
NE
NE
NE
NE
Appendix II
Appendix II
Appendix II
Appendix II
100-51-6
NE
319-84-6
NE
319-85-7
NE
NE
319-86-8
26
delta-BHC
NE
NE
0.019
Appendix II
58-89-9
27
31
gamma-BHC; Lindane
4-Bromophenyl phenyl ether
0.03
NE
0.2
NE
Appendix II
Appendix II
101-55-3
NE
NE
NE
NE
85-68-7
32 i Butyl benzyl phthalate; Benzyl butyl phthalate
33 Di-n-butyl phthalate
38 p-Chloroaniline
40 Chlorobenzilate
42 Bis(2-chloroethoxy)methane
43 Bis(2-chloroethyl)ether; Dichloroethyl ether
45 p-Chloro-m-cresol; 4-Chloro-3-methylphenol
Bis(2-chloro-l-methylethyl) ether; 2,2'-
46 Dichlorodiisopropyl ether; DCIP
47 2-Chloronaphthalene
1000
NE
NE
NE I
Appendix II
84-74-2
106-47-8
510-15-6
700
NE
NE
NE
Appendix II
Appd
NE
NE
NE
NE
NE
NE
NE
NE
Appendix II
111-91-1
NE
NE
NE
NE
Appendix II
111-44-4
NE
NE
NE
0.031
Appendix II
Appendix II
Appendix II
59-50-7
108-60-1
91-58-7
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
Appendix II
Page 3 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards 1
CAS RN z
DEQ
calculated
SWS ID' CHEMICAL NAME 2L 2L [MAC MCL GWP Std Reference List°
48 2-Chlorophenol 0.4 NE NE NE Appendix II
49 4-Chlorophenyl phenyl ether NE NE i NE NE Appendix II
95-57-8
7005-72-3
126-99-8
50
Chloroprene
NE
NE
NE
NE
Appendix II
218-01-9
95-48-7
57-12-5
52
Chrysene
o-Cresol; 2-Methylphenol
5
NE
NE
NE
Appendix II
Appendix II
Appendix II
Appendix 11
Appendix 11
56
NE
400
NE
NE
58
Cyanide
70
NE
200
NE
94-75-7
59
60
2,4-D; 2,4-Dichlorophenoxyacetic acid
70
NE
70
NE
72-54-8
4,4'-DDD
0.2
NE
NE
NE
72-55-9
61
4,4'-DDE
NE
NE
NE
NE
NE
NE
i Appendix II
Appendix II
50-29-3
62
4,4'-DDT
0.1
NE
2303-16-4
63
Diallate
NE
NE
NE
NE
ADDenc ix 11
53-70-3
132-64-9
541-73-1
91-94-1
75-71-8
64
65
Dibenz[a,h)anthracene
Dibenzofuran
m-Dichlorobenzene;1,3-Dichlorobenzene
3,3'-Dichlorobenzidine
0.005
NE
NE
NE
NE
Appendix II
Appendix II
Appendix II
NE
28
NE
70
200
NE
NE
NE
72
NE
1000
NE
NE
NE
NE
NE
NE
ADpendix II
Appendix II
74
Dichlorodifluoromethane; CFC 12
120-83-2
80
2,4-Dichlorophenol
NE
0.98
NE
NE
Appendix II
87-65-0
81
2,6-Dichlorophenol
NE
NE
NE
NE
Appendix 11
142-28-9 1
83
1,3-Dichloropropane; Trimethylene dichloride
NE
NE
NE
NE
Appendix 11
594-20-7
84 2,2-Dichloropropane; Isopropylidene chloride
85 1,1-Dichloropropene
88 Dieldrin
89 O,O-Diethyl O-2-pyrazinyl phosphorothioate; Thionazin
90 Diethyl phthalate
NE
NE
NE
NE
ADpendix II
563-58-6
NE
NE
NE
i
NE
Appendix II
Appendix 11
60-57-1
0.002 1
NE
NE
NE
297-97-2
NE
NE
NE
NE
ADpendix 11
84-66-2
6000
NE
NE
NE
Appendix II
60-51-5
60-11-7
57-97-6
91 Dimethoate _
92 I p-(Dimethylamino)azobenzene
93 7,12-Dimethylbenz[a)anthracene
94 3,3'-Dimethylbenzidine
95 2,4-Dimethylphenol; m-Xylenol
96 Dimethyl phthalate
NE
NE
NE
NE
Appendix II
NE
NE
NE
NE
Appendix 11
NE
NE
NE
NE
Appendix II
119-93-7
NE
NE
NE
NE
Appendix 11
ADpendix II
105-67-9
100 1
NE
NE
NE
131-11-3
NE
NE
NE
NE
ADpendix 11
99-65-0
97
m-Dinitrobenzene
NE
NE
NE
NE
ADpendix II
534-52-1
98
4,6-Dinitro-o-cresol; 4,6-Dinitro-2-methylphenol
NE
NE I
NE I
NE
ADpendix II
Page 4 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards t
CAS RN 2
SWS ID a
CHEMICAL NAME
DEQ
Calculated
21. 211. IMAC MCL GWP Std Reference List `
NE NE NE NE Appendix II
51-28-5
99
2,4-Dinitrophenol
121-14-2
100
2,4-Dinitrotoluene
NE
0.1
NE
NE
ADpendix II
606-20-2
101
2,6-Dinitrotoluene
NE
NE
NE
NE
Appendix 11
88-85-7
102
Dinoseb; DNBP; 2-sec-Butyl-4,6-dinitrophenol
Diphenylamine
NE
7
1 7
NE
Appendix II
ADpendix 11
122-39-4
103
NE
NE
NE
NE
298-04-4
104
Disulfoton
0.3
NE
NE
NE
Appendix 11
959-98-8
105 Endosulfan 1
106 Endosulfan II
107 Endosulfan sulfate
40
NE
NE
NE
Appendix 11
33213-65-9
NE
NE
NE
42
Appendix II
Appendix II
Appendix II
1031-07-8
NE
2
40
NE
NE
2
E
ENE
72-20-8
108 Endrin
7421-93-4
109 Endrin aldehyde
111 Bis(2-ethylhexyl) phthalate
112 Ethyl methacrylate
2
NE
NE
NE
Appendix II
117-81-7
3
NE
NE
NE
Appendix 11
Appendix II
Appendix II
97-63-2
NE
NE
NE
NE
NE
NE
NE
NE
62-50-0
113
Ethyl methanesulfonate
NE
NE
NE
52-85-7
114
Famphur
NE
300
NE
NE
Appendix 11
206-44-0
115 Fluoranthene
116 Fluorene
117 Heptachlor
118 Heptachlor epoxide
NE
NE
Appendix 11
Appendix II
Appendix 11
86-73-7
76-44-8
1024-57-3
300
NE
NE
0.008
NE
0.4
NE
0.004
NE 1
0.2
NE
Appendix 11
118-74-1
119
Hexachlorobenzene
0.02
NE
1
NE
Appendix11
87-68-3
120
Hexachlorobutadiene
Hexachlorocyclopentadiene
Hexachloroethane
0.4
NE
NE
NE
Appendix II
Appendix 11
Appendix 11
Appendix II
77-47-4
121
NE
NE
NE
NE
50
SO
67-72-1
122
NE
NE
NE
NE
2.5
NE
1888-71-7
123
Hexachloropropene
193-39-5
125 Indeno(1,2,3-cd)pyrene
0.05 1
NE
NE
NE I
Appendix II
Appendix 11
78-83-1
126 Isobutyl alcohol
127 Isodrin
128 Isophorone
NE
NE
NE
NE
465-73-6
NE
NE
NE
NE
Appendix II
78-59-1
40
NE I
NE
NE
Appendix II
120-58-1
129
Isosafrole
NE
NE
NE
NE
Appendix II
143-50-0
130
Kepone
NE
NE
NE
NE
Appendix 11
7439-97-6
132
Mercury
1
NE
2
NE
App. II / C&D
126-98-7
133
Methacrylonitrile
NE
NEI
NE
NE
ADpendix 11
Page 5 of 11

NC Solid Waste Section
Environmental Monitoring List
CAS RN z
91-80-5
72-43-5
56-49-5
80-62-6
66-27-3
91-57-6
298-00-0
91-20-3
130-15-4
134-32-7
91-59-8
99-09-2
88-74-4
100.01-6
98-95-3
99-55-8
88-75-5
100-02-7
55-18-5
62-75-9
924-16-3
86-30-6
SWS ID 3 CHEMICAL NAME
134 Methapyrilene
135 Methoxychlor
138 3-Methylcholanthrene
143 Methyl methacrylate
144 Methyl methanesulfonate
145 2-Methylnaphthalene
146 Methyl parathion; Parathion methyl
148 Naphthalene
149 1,4-Naphthoquinone
150 1-Naphthylamine
151�2-N'a'p-hthyla mine
153 m-Nitroaniline;3-Nitroaniline____
154 o-Nitroaniline; 2-Nitroaniline
155 rp-Nitroaniline; 4-Nitroaniline
156 Nitrobenzene
157 5-Nitro-o-toluidine
158 o-Nitrophenoi; 2-Nitrophenol
159 1 p-Nitrophenol; 4-Nitrophenol
160 _N_-Nitrosodiethylamine
i
161 i N-Nitrosodimethylamine
162 N-Nitro
sodi-n-butylamine
163 N-Nitrosodiphenylamine
N-Nitrosodipropylamine; N-Nitroso-N-dipropylamine; Di -
Groundwater Protection Standards 1
211. 21. IMAC MCL
NE NE NE
DEQ
Calculated
GWP Std Reference List °
NE j Appendix II
NE Appendix II
NE Appendix II
40
NE
NE
NE
NE
NE
NE
25
NE
NE
Appendix II
I
Appendix II
NE
NE
NE
NE
30
NE
NE
NE
Appendix II
NE
NE
NE
NE
Appendix II
6
NE
NE
NE
Appendix II
Appendix II
Appendix II
Appendix II
Appendix II
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
I NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
Appendix II
Appendix II
Appendix II
Appendix II
Appendix II
T Appendix II
NE
NE
I NE
NE
NE
NE
NE
NE
NE
NE
NE
NE I
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
Appendix II
0.0007
NE
NE
NE
Appendix II
NE
NE
NE
NE
Appendix II
Appendix If
NE
NE
NE
NE I
621-64-7
164
n-propyinitrosamine
NE
NE
NE
NE
10595-95-6
100-75-4
165 N-Nitrosomethylethalamine
166 N-Nitrosopiperidine
167 N-Nitrosopyrrolidine
168 Di-n-octyl phthalate
169 Parathion
NE
NE
NE
NE
NE
NE
NE
NE
930-55-2
117-84-0
56-38-2
I NE
NE
NE
I NE
100
NE
NE
NE
NE
NE
NE
NE
1336-36-3
170 Polychlorinated biphenyls; PCBs
171 Pentachlorobenzene
172 Pentachloronitrobenzene
173 Pentachlorophenol
NE
0.09
0.5
NE
608-93-5
NE
NE
NE
NE
82-68-8
NE
NE
NE
NE
87-86-5
0.3
NE
1
NE
Page 6 of 11

NC Solid Waste Section
Environmental Monitoring List
CAS RN z
I
SWS ID' CHEMICAL NAME
Groundwater
2L
NE
200
NE
Protection
21. IMAC
NE
NE
NE
Standards 1
MCL
NE
NE
NE
NE
DEQ
Calculated
GWPStd
NE
NE
NE
NE
Reference List
Appendix II
Appendix II
Appendix II
Appendix II
62-44-2
174
Phenacetin
85-01-8
106-50-3
175
Phenanthrene
176
177
p-Phenylenediamine
Phenol
108-95-2
30
NE
298-02-2
178
Phorate
1
NE
NE
NE
Appendix II
23950-58-5
179
Pronamide
NE
NE
NE
NE
Appendix II
107-12-0
180
Propionitrile; Ethyl cyanide
Pyrene
NE
NE
NE
NE
NE
NE
Appendix II
Appendix 11
Appendix 11
129-00-0
181
200
NE
NE
NE
NE
NE
94-59-7
182
Safrole
93-72-1
185
Silvex; 2,4,5-TP
50
NE
NE
NE
Appendix 11
18496-25-8
187
Sulfide
N
I NE
NE
NE
Appendix 11
93-76-5
95-94-3
188
2,4,5-T; 2,4,5-Trichlorophenoxyacetic acid
1,2,4,5-Tetrachlorobe nzene
2,3,4,6-Tetrachlorophenol
Tin
NE
NE
NE
NE
Appendix II
189
NE
2
NE
NE
Appendix 11
58-90-2
193
200
NE
NE
NE
Appendix II
ADoendix 11
7440-31-5
195
NE
2000
NE
NE
95-53-4
197
o-Toluidine
Toxaphene
NE
NE
NE
NE
Appendix 11
Appendix II
8001-35-2
198
0.03
NE
3
NE
120-82-1
199
1,2,4-Trichlorobenzene
70
NE
70
NE
Appendix 11
95-95-4
204
2,4,5-Trichlorophenol
NE
63
NE
NE
Appendix 11
88-06-2
205
2,4,6-Trichlorophenol
NE
4
NE
NE
Appendix 11
126-68-1
207
0,0,0-Triethyl phosphorothioate
NE
NE
NE
NE
Appendix 11
99-35-4
208
sym-Trinitrobenzene
NE
NE
NE
NE
Appendix 11
57-74-9
339
Chlordane
0.1
NE
NE
NE
ADoendix II
106-44-5
344
p-Cresol; 4-Methylphenol
40
400
NE
NE
NE
NE
NE
NE
Appendix 11
Appendix II
Appendix II
Appendix 11
108-394
345 m-Cresol; 3-Methylphenol
386 Benzeneethanamine, alpha,alpha-dimethyl
122-09-8
NE
.0002 ng/L
NE
NE 1
NE
0.03
NE
NE
1746-01-6 1
440
2,3,7,8-TCDD; 2,3,7,8-Tetrachlorodibenzo- p-dioxin
123-91-1 I
422 I
1,4-dioxane
3 I
NE I
NE i
NE
ALL'
SW301
301
Chloride
250000
NE
NE
NE
C&D
SW311
311
Total Dissolved Solids
500000
NE
NE
NE
C&D
14808-79-8
315
Sulfate
250000
NE
NE
NE
C&D/Leachate
SW337
337 1
Alkalinity
NE
NE
NE
NE
C&D
Page 7 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards'
CAS RN z SWS ID' CHEMICAL NAME
7439-89-6 340 Iron
DEQ
Calculated
2L 2L IMAC MCL GWP Std Reference List `
300 NE NE NE C&D
50 NE NE NE _ C&D
NE NE NE NE C&D
7439 96 5
342 Manganese
441 Tetrahydrofuran
109-99-9
SW316
316 piological Oxygen Demand
317 Chemical Oxygen Demand
419 No2/No3 (nitrate & nitrite reported together)
1 437 Orthophosphate Phosphorus
NE
NE
NE
NE
NE
NE
NE
Leachate
Leachate
SW317
NE
SW419
NE
NE
7.0
NE
NE
NE
Leachate
Leachate
_ Leachate__
I Leachate
SW437
NE
NE
NE
SW321
SW32424
T321pH (lab)
I SpecCond (lab)
NE
NE
NE
NE
NE
I NE
NE
226-36-8
385 1,2,5,6-Dibenzacridine
394 1,2-Diphenylhydrazine
371 1-2-3-Trichlorobenzene
352 2-(2-4-dichlorophenoxy)propionic acid
350 2-4 DB
NE
NE
NE
NE
NE
NE
NE
NE
NE
NE
Other
Other
Other
122-66-7
NE
87-61-6
NE
NE
NE
120-36-5
NE
NE
NE I
Other
Other
94-82-6
NE
NE
NE
130-75-8
358 2-Chloroethylvinyl ether NE
390 2-Picoline NE
388 4-nitroquinoline-l-oxide NE
416 Acetic Acid NE
NE
NE
NE
Other
Other
other
Other
109-06-8
NE
NE
NE
56-57-5
NE
NE
NE
64-19-7
5000
NE
NE
62-53-3
381
1 Aniline
NE
NE
NE
NE
Other
140-57-8
382
Aramite
NE
NE
NE
NE
Other
12674-11-2
401
Aroclor 1016
Aroclor1221
NE
NE
NE
NE
Other
11104-28-2
11141-16-5
402
NE
NE
NE
NE
NE
NE
NE
NE
Other
Other
403
Aroclor 1232
53469-21-9
404
Aroclor 1242
NE
NE
NE
NE
Other
12672-29-6
11097-69-1
405
Aroclor 12_48
NE
NE
NE
NE I
NE NE
NE NE I
NE NE
Other
Other__ _
Other
other
Other
other
406
407
383
1 Aroclor1254
i Aroclor 1260
Benzidine
11096-82-5
NE
NE
92-87-5
NE
NE
NE I NE
7440-42-8
428 Boron
347 Bicarbonate (as CaCO3)
423 biphenyl ether
700
NE
NE NE
SW347
101-84-8
NE
NE
NE
NE
NE
NE
NE
NE
Other
108-86-1
360
Bromobenzene
NE
NE
NE
NE
Other
Page 8 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards 1
CAS RN Z
SW418
7440-70-2
SWS ID' CHEMICAL NAME
418 Butyric Acid
375 Calcium
DEQ
Calculated
21. 2L IMAC MCL GWP Std Reference List 4
NE NE NE NE Other
NE NE NE NE other
NE NE NE NE Other
NE NE NE NE Other
SW413
413
Carbon Dioxide (CO2)
SW348
12789-03-6
348
Carbonate (as CaCO3)
Chlordane (constituents)
400
NE
NE
NE
NE
other
79-06-1
429
Acrylamide
0.008
NE
NE
NE
Other
5103-71-9
379
Chlordane, alpha
NE
NE
I NE
NE
Other
5103-74-2
378
Chlordane, beta
NE
NE
NE
NE
2
NE
NE
NE
other
Other
5566-34-7
399
Chlordane, gamma
75-99-0
355
Dalapon
NE
200
200
NE
Other
SW318
318
Depth To Water (ft)
NE
NE
NE
NE
Other
1918-00-9
353
Dicamba
NE
NE
NE
NE
NE
NE
NE
Other
Other
Other
SW334
334
Ferrous Iron- Dissolved
Groundwater Elevation (feet)
NE
NE
SW427
427
NE
NE
NE
NE
NE
NE
SW319
319
Head (ft mean sea level)
NE
NE
NE
NE
NE
Other
Other
Other
Other
other
70-30.4
387
Hexachlorophene
Hydrogen Sulfide
Lactic Acid
NE
I NE
NE
SW338
SW415
SW329
338
415
NE
NE
NE
NE
NE
NE
329
Landfill Gas
NE
NE
NE
SW374
374
m-&p-Cresol (combined)
NE
NE
NE
NE
Other
92-52-4
SW359
421
1,1-biphenyl
m-&p-Xylene (combined)
Carbofuran
400
NE
NE
NE
Other
359
NE
NE
NE
NE
Other
Other
Other
1563-66-2
430
40
10000
NE
NE
40
NE
NE
NE
107-21-1
424
ethylene glycol
142-82-5
432
Heptane
400
NE
NE
NE
Other
7439-95-4
376
Magnesium
MCPA
1,1,2-Trichlorotrifluoroethane
NE
NE
NE
NE
Other
Other
94-74-6
351
NE
NE
NE
NE
76-13-1
398
200000
NE
NE
NE
Other
93-65-2
354
Mecopop, MCPP
Methane- Dissolved
Molybdenum
NE
NE
NE
NE
Other
SW333
7439-98-7
333
NE
NE
NE
NE
Other
397 i
NE
NE
NE
NE
NE
NE
NE
NE
Other
Other
108-38 3
409 1
m-Xylene
Page 9 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards 1
DEQ
CAS RN z SWS ID a CHEMICAL NAME
SW426 426 N-nitrosodiphenylamine/diphenylamine
SW439 439 N-Nitrosodiphenylamine/Diphenylamine
65-85-0 395 Benzoic Acid
211.
21. (MAC
MCL GWP Std Reference List
NE NE Other
NE NE Other
NE NE other
NE
NE
NE
NE
30000
1 NE
39638-32-9
384
Bis(2-chloroisopropyl) ether
0.03
NE
NE
NE
Other
59-89-2
389
N-Nitrosomorpholine
Coliform (total)
NE
NE
NE
NE
Other
other
SW309
309
1
is
NE
NE
5
NE
NE
NE
SW310
310
Color (color units)
Other
SW336
SW313
SW314
336
Oxygen Reduction Potential (mV)
Foaming Agents
NE
NE
NE
NE
Other
Other
Other
313
500
is
NE
NE
NE
NE
NE
NE
314
Gross Alpha
106-43-4
365
4-Chlorotoluene
NE
NE
24
25
NE
NE
NE
NE
Other
other
Other
Other
99-87-6
108-20-3
98-82-8
368 _ p-Cymene
366 ( Isopropyl ether
367 Isopropylbenzene
70
NE
NE
NE
70
NE
NE
NE
76-01-7
380
Pentachloroethane
NE
NE
NE
NE
other
SW335
335
Manganese- Dissolved
s0
NE
NE
NE
Other
108-67-8
373
Mesiitylene (1-3-5-trimethylbenzene)
400
NE
NE
NE
other
7440-09-7
377
Potassium
NE
NE
NE
NE
Other
1634-04-4
369
Methyl-tert-butyl ether (MTBE)
20
NE
NE
NE
Other
104-51-8
361
n-Butylbenzene
70
NE
NE
NE
Other
SW417
417
PropionicAcid
NE
NE
NE
NE
Other
106-42-3
410
p-Xylene _
NE
NE
NE
NE
Other
103-65-1
370 1
n-Propylbenzene
70
NE
NE
NE
other
95-49-8
364
o-Chlorotoluene
100
NE
NE
NE
Other
110-86-1
391
414 1
Pyridine
Pyruvic Acid
NE
NE
NE
7
Other
SW414
NE
NE
NE
NE
NE
NE
NE
20000
NE
NE
NE
Other
Other
Other
Other
other
Other
Other
7440-23-5
322
Sodium
SW323
323 SpecCond (field)
307 petroleum aliphatic carbon fraction class C19 - C36
305 petroleum aliphatic carbon fraction class CS - C8
306 petroleum aliphatic carbon fraction class C9 - C18
308 petroleum aromatics carbon fraction class C9 - C22
NE
NE
NE
SW307
10000
NE
NE
SW305
400
NE
NE
NE
SW306
700
NE
NE
SW308
200
NE
NE
NE
Page 10 of 11

NC Solid Waste Section
Environmental Monitoring List
Groundwater Protection Standards)
DEQ
2 Calculated
CAS RN
i SWS ID a
CHEMICAL NAME
211.
2L IMAC
MCL
GWP Std
SW320
320
pH (field)
7.0
NE
NE
NE
95-63-6
372
Pseudocumene (1-2-4-trimethylbenzene)
400
NE
NE
NE
3689-24-5
392
Sulfotep
NE
NE
NE
NE
SW325
325
Temp (oC)
NE
NE
NE
NE
135-98-8
362
sec-Butylbenzene
70
NE
NE
NE
SW328
328
Top Of Casing (ft mean sea level)
NE
I NE
NE
NE
SW425
425
Total BHC
0.02
NE
NE
NE
SW436
436
Total Fatty Acids
NE
NE
NE
NE
E-10195
357
Total Organic Carbon
NE
NE
NE
NE
98-06-6
363
tert-Butylbenzene
70
NE
NE
NE
SW396
396
Total Organic Halides
NE
NE
NE
NE
SW343
343
Total Suspended Solids
NE
NE
NE
NE
SW411 _�
411
Total Well Depth (ft)
NE
NE
NE
NE
SW330
330
Turbidity
NE
i NE
NE
NE
NOTE: GWPSs as listed are current as of October 15, 2018 and are subject to change. Refer to originating sources for any changes.
Reference List 4
Other
1 Groundwater Protection Standard (GWPS) - For compliance purposes, the applicable GWPS is the lower of the listed standards.
2 CAS RN = Chemical Abstract Service Registry Number. For listed contituents with no CAS, the SWS ID is used.
3 SWS ID = Solid Waste Section ID. Unique ID assigned by the Section.
4 Constituents Reference Lists
APPENDIX I - Constituents for Detection Monitoring per 40 CFR Part 258 (7.1-2017 Edition)
APPENDIX II -List of Hazardous Inorganic & Organic Constituents per 40 CFR Part 258 (7-1-2017 Edition). Appendix ll list includes all Appendix I constituents.
C&D - Additional monitored constituents required for Construction & Demolition landfills (CDLFs)
LEACHATE - Monitored constituents for leachate sampling as specified in permit conditions.
other - other constituents, field testing, field measurements, or miscellaneous data that may be required by the Section.
5 ALL -1,4-Dioxane sampling required for all MSW, C&D, & Industrial landfills (active and closed) per SWS Memo dated May 29, 2018.
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other
Other
GW Protection Standards References
2L - NC groundwater water standards per 15A NCAC 02L .0202
2L IMAC (Interim Maximum Allowable Concentrations) - Interim NC groundwater standards per 15A NCAC 02L .0202
MCL (Maximum Contaminant Level) - National primary drinking water standards per Safe Drinking Water Act under 40 CFR Part 141
NC GWP Std (NC Groundwater Protected Standard) - Groundwater value calculated by NC DEQ for constituents with no established 2L standard. Values are calculated using
criteria 1 & 2 of the NC Groundwater standards and do not consider taste, odor, MCLs, MCLG, and secondary drinking water standards.
Weblink for 40 CFR Part 258
Page 11 of 11

� GOLDER
golder.com