WI0100353_Corrective Action Plan_20220330

CORRECTIVE ACTION
EVALUATION REPORT
WATER QUALITY DATA
THROUGH OCTOBER 2021
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
DWM Permit Number 1101-MSWLF-1979
DWR UIC Permit No. WI0100353
Prepared For:
Buncombe County, North Carolina
BLE Project Number J20-14175-03
March 30, 2022
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BLE North Carolina Business Licenses C-284 & C-1538
IM 13UNNELL
M LAMMONS
ENGINEERING
6004 Ponders Court I Greenville, 5C 29615
864-288.1265 A 864,286.4330 w info@hle[orp.com
BLECORP.CQM

� LAMM(INS
ENGINEERING
March 30, 2022
Buncombe County Solid Waste Department
81 Panther Branch Road
Alexander, North Carolina 28701
Attention: Ms. Kristy Smith
Subject: Corrective Action Evaluation Report
Water Quality Data Through October 2021
Old Buncombe County Landfill
Woodfin, North Carolina
DWM Permit Number 1101-MSWLF-1979
DWR UIC Permit No. W10100353
BLE Project Number J20-14175-03
Dear Ms. Smith:
Pursuant to Buncombe County authorization of Bunnell-Lammons Engineering, Inc. (BLE) Contract Number
J20-14175-03, dated February 27, 2020, BLE has prepared this Corrective Action Evaluation Report (CAER)
of the water quality data collected through October 2021 at the Old Buncombe County Landfill.
This CAER is prepared in accordance with the requirements of the North Carolina Division of Waste
Management (DWM) — Solid Waste Section (SWS) approved Corrective Action Plan (CAP) and the North
Carolina Division of Water Resources (DWR) approved Underground Injection Control (UIC) permit.
Sincerely,
BUNNELL LAMMONS ENGINEERING INC.
Ril . Blais, .I.T.
Staff Hydrogeologist
cc: Ms. Jaclynne Drummond — DWM-ARO
Mr. Brett Laverty, P.G. — DWR-ARO
Mr. Michael Rogers, P.G. — DWR-CO
4&1 aL /4-4w�
Andrew W. Ale der, P.G., RSM
Consultant Hydrogeologist
Registered, NC #1475
Ilblegvlfsllsolidwasteprojectslbuncombe county closed lf, ncU4175-03 caer 5 yearlcaerldraft old bcd(1101-mswlf-1979 caer 14175-03.docx
6004 Ponders Court, Greenville, SC 29615 ( H!54.28B.1265 a B64.288.4430 P—Minfoahlerorp.Eom
6LECORP.COM

IC 1.1:
Old Buncombe County Landfill — Woodfin, North Carolina March 30, 2022
CAER — WQ Data through October 2021 BLE Project No. J20-14175-03
TABLE OF CONTENTS
1.0 PROJECT INFORMATION........................................................................................................ I
2.0
DATA EVALUATION..................................................................................................................2
2.1
Trend Data...................................................................................................................................... 3
2.2
Geochemical Data........................................................................................................................... 4
2.3
Contaminant Trend Evaluation..................................................................................................... 5
2.3.1
Trend Evaluation of Chlorinated Solvents...................................................................................... 5
2.3.2
Trend Evaluation of Other Categories of VOCs............................................................................. 5
2.4
Evaluation of Geochemical Data................................................................................................... 6
2.4.1
Chlorinated Solvent Geochemical Data.......................................................................................... 6
2.4.2
Terminal Electron Accepting Processes (TEAPs) Geochemical Data ............................................ 6
3.0
FINDINGS......................................................................................................................................6
3.1
Contaminant Trend Evaluation.................................................................................................... 6
3.1.1
Trends of Chlorinated Solvents...................................................................................................... 6
3.1.2
Trends of Other Categories of VOCs............................................................................................. 7
3.2
Evaluation of Geochemical Data.................................................................................................. 8
3.2.1
Chlorinated Solvents....................................................................................................................... 8
3.2.2
Other Categories of VOCs............................................................................................................... 9
4.0
SUMMARY & CONCLUSIONS.................................................................................................. 9
4.1
Chlorinated Solvents...................................................................................................................... 9
4.2
Other Categories of VOCs..........................................................................................................10
4.3
Geochemical Conditions..............................................................................................................10
4.4
General Summary and Conclusions...........................................................................................
10
5.0
RECOMMENDATIONS.............................................................................................................11
5.1
Proposed Future Monitoring Matrix.........................................................................................11
5.2
Continuation of the Approved Remedies...................................................................................
11
5.3
Voluntary Supplemental Remedy..............................................................................................
11
5.4
Assessment Near MW-7..............................................................................................................11
6.0
QUALIFICATIONS OF REPORT............................................................................................12
7.0
CLOSING.....................................................................................................................................12
Tables
Table 1
SWS Approved Groundwater Sampling and Analysis Matrix
Table IA
Proposed Groundwater Sampling and Analysis Matrix
Table 2
SWS Approved Surface Water Sampling and Analysis Matrix
Table 3
Well Construction and Monitoring Well Data
Table 4
Range of Groundwater Flow Velocities
Table 5
Groundwater Transects for Remedial Monitoring
Table 6A & 6B
Summary of Statistical Trends VOCs in Groundwater
Table 7
Summary of Statistical Trends — VOCs in Surface Water
Table 8
Natural Attenuation Screening Protocol (NASP) Results
Table 9A to 9E
Summary of TEAP Parameters & Comparisons [November 2019 to October 2021 ]
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CAER — WQ Data through October 2021
TABLE OF CONTENTS (continued)
Figures
Figure 1
Site Location Map
Figure 2
Groundwater Elevation Contour Map — October 25, 2021
Figure 3
Transect Location Map
Figure 4
Profile of Transect 1-1'
Figure 5
Profile of Transect 2-2'
Figure 6
Profile of Transect 3-3'
Figure 7
Profile of Transect 4-4'
Figure 8
Profile of Transect 5-5'
Appendices
March 30, 2022
BLE Project No. J20-14175-03
Appendix A
Groundwater VOC Summary Tables
Appendix B
Surface Water VOC Summary Tables
Appendix C
Geochemical Parameters for MNA and Field Parameter Summary Tables
Appendix D
Groundwater VOC Trend Plots [5 VOC Categories]
Appendix E
Surface Water VOC Trend Plots [1 VOC Category]
Appendix F
Input Parameters for NASP [November 2019 to October 2021 ]
Appendix G
NASP Score Sheets [November 2019 to October 2021]
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1.0 PROJECT INFORMATION
Buncombe County provides post -closure care for the Pre -Subtitle D MSWLF (unlined) located at 2726
Riverside Drive, Woodfin, North Carolina (Figure 1). The county operated the facility as a municipal solid
waste (MSW), industrial solid waste (ISW), and construction and demolition (C&D) landfill. The landfill is
separated into four (4) separate waste areas labeled A through D. Waste areas A, B, and C stopped receiving
waste before October 9, 1991 and waste area D stopped receiving waste on September 27, 1997. The closed
landfill is commonly referred to as the Old Buncombe County Landfill.
Groundwater and surface water monitoring is performed at the site in accordance with a DWM approved
Corrective Action Plan (CAP) dated September 3, 2014 [DIN 21838 (SCS Engineers File No 09204072.06)]
and a DWM approved Request for Reduction of MNA Parameters dated November 30, 2016 [DIN 27144
(SCS Engineers File No 09204072.14)]. Prior to the second semi-annual sampling event of 2020, BLE
submitted (on behalf of Buncombe County) the Report of 1, 4-Dioxane Sampling and Analysis November 2018
to April 2020 dated September 1, 2020 [FID 145059] which included updated groundwater and surface water
matrices. The report and updated matrices were approved by the DWM.
Buncombe County applied for, and was granted a permit for subsurface injection of materials for enhanced
bioremediation of VOCs (chlorinated solvents) in groundwater as part of the correction action at the facility.
An underground injection control (UIC) Permit (No WI0100353) was transmitted by the DWR on September
11, 2015. The permit issue date was September 15, 2015. The permit was renewed on September 21, 2020
and expires on August 31, 2025 (effective dates).
The facility requires semi-annual groundwater and surface water monitoring and reporting in accordance with
the CAP, et seq., and UIC permit.
The active groundwater monitoring network for the Old Buncombe County Landfill consists of one (1)
upgradient (background) well and twenty-three (23) downgradient (compliance, performance, and sentinel)
wells. There are a total of fourteen (14) additional wells that are considered inactive for sampling purposes
and are used for collecting water levels only (Table 1 and Figure 2).
Five (5) active surface water monitoring locations have been established for the facility to monitor surface
water quality. The existing surface water locations consist of one (1) upstream (background) location and
four (4) downstream (compliance) locations. Five (5) inactive surface water monitoring locations have
been established but are not sampled (Table 2 and Figure 2).
The selected remedies in the approved CAP include Monitored Natural Attenuation (MNA), Intuitional
Controls, and In Situ Enhanced Bioremediation and Bioaugmentation. The institutional controls included a
restrictive cover (landfill cap), fencing, and a landfill gas collection system. Those remedies are described in
the project records (prepared by others) and are not part of the CAER.
The active water quality compliance remedies were initiated in 2015 and were implemented to target
chlorinated VOCs. They included the aforementioned UIC permit and underground injection for enhanced
bioremediation and bioaugmentation.
A bio-treatability study performed by SiREM in 2015 and included in SCS's Monitored Natural Attenuation
Sampling Report dated May 5, 2015 (SCS File No. 09204072.14) concluded that bioaugmentation was not
necessary at the site.
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The in -situ enhanced bioremediation programs performed at the site included two events. A pre -CAP pilot -
scale injection of Hydrogen Release Compound (HRC) was performed in 2007-2008 and was located
upgradient of the MW-17 groundwater monitoring well cluster. The results of the pilot -scale event and
monitoring was reported by others in 2009 and are not part of the CAER. A post -CAP injection of an
emulsified vegetable oil (Tersus EDS-ER [Electron Donor Solution — Extended Release]) and a fermentation
product (Tersus Nutrimens) was performed in 2015. The emulsified vegetable oil and fermentation product
injection was performed in September 22-28, 2015 and included injection wells/points IW-1 (860 gallons),
DPL-2 (447 gallons), TW-1 (275 gallons), TW-2 (275 gallons), and TW-3 (90 gallons) [Figure 2].
The CAP and UIC permit both specify that an evaluation of the site's remedial progress be documented in
reports submitted to the DWM and DWR. The CAP requires the preparation of a CAER and the UIC permit
requires the submittal of an Interim Evaluation Report (IER).
The CAP specified the first CAER would be submitted by September 1, 2021 (approximate). Buncombe
County and BLE planned to issue the CAER at the end of 2021 to include the October 2021 semi-annual
water quality data as documented in several prior semi-annual water quality monitoring reports. However,
the receipt of the October 2021 data was delayed and submittal of this CAER was postponed until March 31,
2022 as documented in BLE's letter to the SWS titled Revised Schedule for the Corrective Action Evaluation
Report (CAER) dated December 8, 2021.
The objective of this project is to evaluate the remedial progress at the facility and to prepare a CAER as
required by the DWM and DWR, respectively. Please note that the general requirements for the CAER are
included in the DWM Solid Waste Section (SWS) Guidelines for Corrective Action Evaluation Reports
(undated whitepaper). The requirements for the IER are included in Part VI — Paragraph 5 of the permit.
This CAER has been prepared in general accordance with the aforementioned guidance for the CAER and
IER and includes only the relevant elements of each.
The site's aquifer characteristics, contaminant distribution, site conceptual model, and regulatory status was
documented in the aforementioned CAP and in multiple semi-annual monitoring and monitored natural
attenuation (MNA) sampling reports prepared by SCS from 2014 through 2019. Additional monitoring data
is provided in multiple semi-annual water quality reports by BLE from 2019 to 2022.
No change to the aquifer characteristics, contaminant distribution, site conceptual model, or regulatory status
from that documented in the CAP and prior sampling reports is proposed as part of this CAER. Please refer
to those documents for those data.
2.0 DATA EVALUATION
It is noted that the remedies in the approved CAP were developed to only address VOCs in groundwater.
Specifically, the enhanced bioremediation project targeted chlorinated ethenes and chlorinated ethanes in
specific locations where injection of substances were performed. However, this CAER has been prepared to
evaluate remedial progress in the target areas and non -target areas. Additionally, this CAER has been
prepared to include the evaluation of specific classes of VOCs with significant detection history in the active
groundwater and surface water monitoring locations. An evaluation period from April 16, 2012 to October
28, 2021 has been established for the CAER. The evaluation period includes the data available in digital form
in the facility records and provides sufficient pre -CAP baseline data (prior to 2015 injections) for comparison
to post -CAP data (after 2015 injections).
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This CAER includes a site map (Figure 2) which includes the location of groundwater and surface water
monitoring points and injection points circa 2015. Groundwater elevation contours and flow arrows from the
October 2021 sampling event are also shown on Figure 2. The monitoring well construction details and water
levels from the October 2021 event are shown on Table 3. Groundwater flow velocities calculated for the
October 2021 sampling event are included on Table 4. Five (5) transects were established for remedial
monitoring in the CAP (Table 5). The locations of all five transects are shown on Figure 3. Profiles for each
transect are shown on Figures 4, 5, 6, 7, and 8. Total VOC concentrations for the October 2021 event are
shown at each active well location for reference. Note that the lithologic data shown on the profiles are from
others and the references are cited on the figures.
Summary tables of the groundwater quality data published by BLE for the five (5) most recent events;
November 2019, April 2020, October 2020, April 2021, and October 2021 have been prepared for reference
(Appendix A, B, and Q. The groundwater VOC summary tables are included in Table A-1 through Table
A-5 (Appendix A). The surface water VOC summary tables are included in Table B-1 through Table B-5
(Appendix B). The groundwater geochemical parameters for MNA and field parameters summary tables are
included in Table C-1 through Table C-5 (Appendix Q. Data from the April 2012 event through the April
2019 event was published by SCS in semi-annual water quality reports.
This CAER includes the evaluation of contaminant trends and geochemical conditions to determine if
conditions are favorable for natural attenuation processes. As such, this CAER is divided into two sections
for each type of evaluation; 1) trend data and 2) geochemical data.
2.1 Trend Data
The data from the VOC trend analyses for groundwater and surface water included data from the April 2012
event through the April 2019 event published by SCS and data from the November 2019 event through the
October 2021 event published by BLE (Appendix A and B). A working list of detected VOCs during the
evaluation period were prepared. The working list does not include detections of unique VOCs which are
void of trends and which may be sampling and/or laboratory error. The detected VOCs selected for evaluation
were classified into five (5) categories based on chemical type. The categories and compounds in each
category are shown below:
Chlorinated Ethenes
Tetrachloroethene (PCE)
Trichloroethene (TCE)
cis-1,2-Dichloroethene (DCE)
Vinyl Chloride (VC)
Chlorinated Ethanes
1, 1, 1 -Trichloroethane (1,1,1-TCA)
1, 1 -Dichloroethane (1,1-DCA)
Chloroethane (CA)
Hvdrocarbons
Benzene
Toluene
Ethylbenzene
Total Xylenes
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Chlorinated Benzenes
Chlorobenzene (CB)
1,2-Dichlorobenzene (1,2-DCB)
1,4-Dichlorobenzene (1,4-DCB)
Other VOCs
Acetone
1,2-Dichloropropane (1,2-DCP)
2-Butanone (MEK)
4-Methyl-2-Pentanone (MIK)
1,4-Dioxane (DX)
Trend plots of the VOCs listed above for each category were prepared for selected groundwater monitoring
wells (Appendix D) for the period from April 2012 through October 2021.
The selected wells included the following nineteen (19) groundwater monitoring wells: MW-B, MW-3, MW-
4, MW-4A, MW-5, MW-6, MW-6-192, MW-7, MW-12-25, MW-13-35, MW-13-132, MW-17-60, MW-17-
137, MW-18-78, MW-19-75, MW-19-110, MW-21-21, MW-21-94, and DPL-2. Groundwater elevations are
included on each VOC trend plot for reference (Appendix D). Note that monitoring well DPL-2 was
abandoned and sampling was discontinued in 2015. The data from DPL-2 is included for historical reference
only. Also note that monitoring well MW-7 was reported to be dry from spring 2015 and not sampled until
late 2019 when the water level rose and sampling resumed.
Trend plots of the VOCs listed above in the Other VOC category were prepared for the active surface water
locations (Appendix E). The active surface water locations included: SW -I, SW-2, SW-2A, SW-3, and SW-
4. It is noted that detected VOCs in the surface water points, which met the criteria for creation of a trend
plot, were limited to the Other VOC category. Additionally, the NC2B standard for DX is included on the
plots for reference.
2.2 Geochemical Data
Summary tables of geochemical data from the most recent five (5) events are included in Appendix C:
November 2019 (Table C-1), April 2020 (Table C-2), October 2020 (Table C-3), April 2021 (Table C-4),
and October 2021 (Table C-5). These data will be evaluated herein.
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2.3 Contaminant Trend Evaluation
2.3.1 Trend Evaluation of Chlorinated Solvents
Degradation of chlorinated compounds is typically reflected in the historical trends where the concentrations
of parent compounds decrease while the concentrations of daughter products increase.
The two major transformation pathways for ethenes and ethanes from parent to daughter products are shown
below:
1. Tetrachloroethene (PCE) 4 Trichloroethene (TCE) 4 (isomers) Dichloroethene (DCE) 4
Vinyl Chloride (VC) 4 Ethene 4 Ethane
2. 1,1,1-Trichloroethane (1,1,1-TCA) 4 1,1-Dichloroethane (1,1-DCA) 4 Chloroethane (CA) 4
Ethane
It is noted that sufficient evidence of attenuation incudes: 1) decreasing trends or non -detect parent product
(e.g., PCE, TCE, and 1,1,1-TCA); and/or 2) increasing, stable, and/or decreasing trends of daughter product
(e.g., DCE, VC, 1,1-DCA, CA).
Summary tables of the historical concentration data were prepared (Appendix A) and plots of chlorinated
solvent concentrations were analyzed for wells with observed measurable concentration trends (Appendix
D).
Concentration trends were evaluated visually, using linear regression analysis, and using the Kendall -Mann
non -parametric testing procedure. The Kendall -Mann procedure is used to determine if the concentrations
detected in a well are increasing or decreasing over time. The trend analysis consisted of the following:
1. Determination of the slope of best -fit trend -lines of the detected concentrations in monitoring wells with
sufficient data for analysis. A negative (-) slope indicates a decreasing trend, and a positive (+) slope
indicates an increasing trend.
2. Determination of the non -parametric Kendall -Mann Trend Coefficient (r). The i provides a measure of
the agreement between the two data sets (i.e., the agreement between the passage of time [sampling
events], and the increase or decrease in concentration of a constituent). The resulting r can range from 1
(complete positive agreement [increasing trend]) to -1 (complete negative agreement [decreasing trend]).
A i between -0.25 and 0.25 indicate a stable trend.
The criteria for statistical analysis of contaminant trends requires a minimum of four (4) datapoints and a
minimum of three (3) detections for analysis of any trend. Datasets that do not meet the criteria will not be
analyzed and will be listed as insufficient.
2.3.2 Trend Evaluation of Other Categories of VOCs
A parent and daughter product relationship does not exist for the other categories of VOCs described herein.
Trends for the other categories of VOC concentration data were analyzed using linear regression analysis and
the Kendall -Mann non -parametric testing procedure as described in the preceding section of this report. It is
noted that sufficient evidence of attenuation incudes decreasingtrends. ends. Evidence of plume stability includes
stable trends.
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2.4 Evaluation of Geochemical Data
BLE evaluated the geochemical data for the five (5) sampling events from November 2019 through October
2021 (Appendix Q. We evaluated data from the MNA wells specified in the CAP which included
background well MW-2 and nine (9) downgradient wells MW-4, MW-6, MW-13-132, MW-18-78, MW-
19-75, MW-19-110, MW-21-21, MW-21-94, MW-24-160.
2.4.1 Chlorinated Solvent Geochemical Data
The US EPA released a technical protocol for evaluating the natural attenuation of chlorinated solvents in
groundwater in September 1998 (EPA/600/R-98/128). The protocol includes the framework for a screening
model, which has been developed into a Natural Attenuation Decision Support System designated
BIOCHLOR Version 2.2 (EPA/600R-00/008). BIOCHLOR Version 2.2 was developed for the Air Force
Center for Environmental Excellence (AFCEE) and released in March 2001.
Geochemical parameters used to assess monitored natural attenuation (MNA) were collected at the site and
evaluated using the "Natural Attenuation Screening Protocol" (HASP) found in the BIOCHLOR model
(Version 2.2). The NASP worksheets calculate a score from the data using a weighted point scoring system.
A higher score indicates stronger evidence of anaerobic biodegradation of chlorinated organics. NASP
worksheets were prepared for each well and the results of the model were used to determine if the measured
parameters supported the selection of natural attenuation as a site remedy (Appendix F and G).
2.4.2 Terminal Electron Accepting Processes (TEAPs) Geochemical Data
Predominant terminal electron -accepting processes (TEAPs) resulting in VOC degradation are oxidation,
denitrification, iron reduction, sulfate reduction, and methanogenesis. Geochemical parameters that are
indicators of microbial respiration patterns of specific TEAPs include dissolved oxygen, nitrate, iron, sulfate,
sulfide, and methane concentrations. Concentrations of these geochemical parameters were evaluated to
determine which TEAPs were potentially active (Table 9A to 9E).
3.0 FINDINGS
3.1 Contaminant Trend Evaluation
3.1.1 Trends of Chlorinated Solvents
Chlorinated Ethenes
A historical summary of chlorinated compounds in groundwater in the PCE transformation pathway (PCE,
TCE, DCE isomers, and VC), are presented in Appendix A. Trend plots of chlorinated ethenes in
groundwater are included in Appendix D. Note that if a specific VOC was not detected during the
evaluation period; the plot legend includes a "ND" label for the VOC. Chlorinated ethenes were not
detected in the surface water. Trends of the subject VOCs were evaluated visually and statistically (linear
regression and Kendall -Mann tests). A summary of linear regression and Kendall -Mann test results are
presented in Table 6A. The statistical summary table includes a result for the data from each well which
meets the evaluation criteria. The summary table includes results for a best fit trend line (linear regression),
Kendall -Mann coefficient, general trend, and notation if the most recent result exceeds the MCL.
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In summary, the parent products (PCE and TCE) are completely transformed (non -detect) or are decreasing
as expected on the transformational pathway. Note that the trend of TCE in MW-21-21 indicates the general
trend is stable. However, the regression line is negative and the four (4) detections are all near the laboratory
detection limit. The daughter products (DCE and VC) are decreasing, stable, or increasing as expected on
the transformational pathway.
Chlorinated Ethanes
A historical summary of chlorinated compounds in groundwater in the 1,1,1-TCA transformation pathway
(1,1,1-TCA, 1,1-DCA, and CA), are presented in Appendix A. Trend plots of chlorinated ethanes in
groundwater are included in Appendix D. Note that if a specific VOC was not detected during the
evaluation period; the plot legend includes a "ND" label for the VOC. Chlorinated ethanes were not
detected in the surface water. Trends of the subject VOCs were evaluated visually and statistically (linear
regression and Kendall -Mann tests). A summary of linear regression and Kendall -Mann test results are
presented in Table 6A. The statistical summary table includes a result for the data from each well which
meets the evaluation criteria. The summary table includes results for a best fit trend line (linear regression),
Kendall -Mann coefficient, general trend, and notation if the most recent result exceeds the MCL.
In summary, the parent product (1,1,1-TCA) is completely transformed (non -detect) as expected on the
transformational pathway. The daughter products (1,1-DCA, and CA) are decreasing, stable, or increasing
as expected on the transformational pathway. Note that all ethane daughter products are stable or decreasing
except for 1,1-DCA in MW-B which is increasing.
3. l .2 Trends of Other Categories of VOCs
Hydrocarbons
A historical summary of petroleum hydrocarbons in groundwater are presented in Appendix A. Trend
plots of petroleum hydrocarbons in groundwater are included in Appendix D. Note that if a specific VOC
was not detected during the evaluation period; the plot legend includes a "ND" label for the VOC.
Petroleum hydrocarbons were not detected in the surface water. Trends of the subject VOCs were evaluated
visually and statistically (linear regression and Kendall -Mann tests). A summary of linear regression and
Kendall -Mann test results are presented in Table 6A. The statistical summary table includes a result for
the data from each well which meets the evaluation criteria. The summary table includes results for a best
fit trend line (linear regression), Kendall -Mann coefficient, general trend, and notation if the most recent
result exceeds the MCL.
In summary, a majority of the petroleum hydrocarbons are stable or decreasing. Trends of benzene in MW-
7 and MW-13-132 and xylene in MW-3, MW-7, and MW-17-137 appear to be increasing.
Chlorinated Benzenes
A historical summary of chlorinated benzenes in groundwater are presented in Appendix A. Trend plots
of chlorinated benzenes in groundwater are included in Appendix D. Note that if a specific VOC was not
detected during the evaluation period; the plot legend includes a "ND" label for the VOC. Chlorinated
benzenes were not detected in the surface water. Trends of the subject VOCs were evaluated visually and
statistically (linear regression and Kendall -Mann tests). A summary of linear regression and Kendall -Mann
test results are presented in Table 6B. The statistical summary table includes a result for the data from each
well which meets the evaluation criteria. The summary table includes results for a best fit trend line (linear
regression), Kendall -Mann coefficient, general trend, and notation if the most recent result exceeds the
MCL.
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In summary, CB appears to be increasing in seven (7) of the sixteen (16) wells evaluated. 1,2-DCB appears
to be increasing in MW-3 and 1,4-DCB appears to be increasing in MW-B, MW-7, and MW-17-137. The
chlorinated benzene trends in the remaining wells are stable, decreasing, or have insufficient data.
Other VOCs
A historical summary of other VOCs in groundwater and surface water are presented in Appendix A and
Appendix B. Trend plots of other VOCs in groundwater and surface water are included in Appendix D
and Appendix E. Note that if a specific VOC was not detected during the evaluation period; the plot
legend includes a "ND" label for the VOC. Note that only DX was detected surface water. Trends of the
subject VOCs were evaluated visually and statistically (linear regression and Kendall -Mann tests). A
summary of linear regression and Kendall -Mann test results for groundwater and surface water are
presented in Table 6B and Table 7. The statistical summary table includes a result for the data from each
well or surface water point which meets the evaluation criteria. The summary table includes results for a
best fit trend line (linear regression), Kendall -Mann coefficient, general trend, and notation if the most
recent result exceeds the MCL or 2B standard.
In summary a majority of the other VOCs are insufficient for trend analysis because of infrequent
detections. Trends of acetone in MW-7 appear to be increasing. Trends of DX in MW-3, MW-4A, MW-
5, MW-6, MW-6-192, MW-17-60, MW-17-137, and MW-18-78 appear to be increasing. Trends of DX in
surface water location SW-2A appear to be increasing.
3.2 Evaluation of Geochemical Data
3.2.1 Chlorinated Solvents
The field and laboratory data collected for geochemical evaluation are available on the tables in Appendix
C. A summary table of NASP input parameters for each event are included in Appendix F: November
2019 (Table F-1), April 2020 (Table F-2), October 2020 (Table F-3), April 2021 (Table F-4), and October
2021 (Table F-5).
NASP worksheets were prepared for each of MNA wells specified in the CAP which include nine (9)
downgradient wells MW-4, MW-6, MW-13-132, MW-18-78, MW-19-75, MW-19-110, MW-21-21, MW-
21-94, MW-24-160 for each of the five (5) sampling events from the data in Appendix F. The NASP
calculated a score from the data using a weighted point scoring system. A higher score indicates stronger
evidence of anaerobic biodegradation of chlorinated organics. The NASP score sheets are included in
Appendix G.
The NASP scoring results for the five (5) events from November 2019 through October 2021 are
summarized in Table 8. The NASP results for the evaluation period indicate that there is "limited" to
"strong" evidence for anaerobic biodegradation of chlorinated compounds at the site. A majority of the
NASP results indicate "strong" evidence. The only well which scored as "limited" was MW-24-160. No
well scored as "inadequate" during any event.
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Old Buncombe County Landfill — Woodfin, North Carolina March 30, 2022
CAER — WQ Data through October 2021 BLE Project No. J20-14175-03
3.2.2 Other Categories of VOCs
Geochemical parameters which may identify potentially active terminal electron -accepting processes
(TEAPs) are summarized on tables for each sampling event as follows: November 2019 (Table 9A), April
2020 (Table 9B), October 2020 (Table 9C), April 2021 (Table 91)), and October 2021 (Table 9E).
The evaluation of these geochemical parameters and associated TEAPs are performed by either comparing
the upgradient geochemical conditions to the downgradient geochemical conditions, by comparing a
geochemical parameter concentration to a standard value, or by comparing an unreduced parameter to a
reduced parameter. Each TEAP is identified as potentially active or inactive based on evaluation of the
geochemical parameters. We evaluated TEAP status from the MNA wells specified in the CAP which
included background well MW-2 and nine (9) downgradient wells MW-4, MW-6, MW-13-132, MW-18-
78, MW-19-75, MW-19-110, MW-21-21, MW-21-94, MW-24-160.
Please note that the determination of TEAP status is based on the conditions observed at the time of
sampling and that TEAP activity is both spatially and temporally variable.
The status for each TEAP was tabulated from each event and summed for all five events to calculate an
activity percentage for each TEAR The results are as follows in order of most active to least active.
Iron Reduction [42 of 45]
93% active
Methanogenesis [34 of 45]
76% active
Oxidation [10 of 45]
22% active
Sulfate Reduction [2 of 45]
4% active
Denitrification [0 of 45]
0% active
These data, collected over a 2.5 year period, provide sufficient evidence that Iron Reduction and
Methanogenesis are active TEAPs at the site. Please note that the dissolved methane observed in the
groundwater may be affected be the generation of landfill gas and not directly by methanogenic activity in
groundwater. Discrimination of the potential sources of methane is not technically feasible. The data also
indicates that Oxidation is minimally active and that Sulfate Reduction and Denitrification are not active at
the site.
4.0 SUMMARY & CONCLUSIONS
4.1 Chlorinated Solvents
In summary, the parent products (PCE and TCE) are completely transformed (non -detect) or are decreasing
as expected on the transformational pathway. The daughter products (DCE and VC) are decreasing, stable,
or increasing as expected on the transformational pathway.
In summary, the parent product (1,1,1-TCA) is completely transformed (non -detect) as expected on the
transformational pathway. The daughter products (1,1-DCA, and CA) are decreasing, stable, or increasing
as expected on the transformational pathway. Note that all ethane daughter products are stable or decreasing
except for 1,1-DCA in MW-B which is increasing.
Concentrations of ethene and ethane are pervasive throughout the entire site at concentrations typically below
0.5 µg/L indicating possible full transformation of parent product to end daughter product (Appendix Q.
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Old Buncombe County Landfill — Woodfin, North Carolina March 30, 2022
CAER — WQ Data through October 2021 BLE Project No. J20-14175-03
We conclude that the trend data and observed daughter products provide sufficient evidence of natural
attenuation of chlorinated solvents at the subject site.
4.2 Other Categories of VOCs
In summary, a majority of the petroleum hydrocarbons are stable or decreasing. Trends of benzene in MW-
7 and MW-13-132 and xylene in MW-3, MW-7, and MW-17-137 appear to be increasing.
In summary, CB appears to be increasing in seven (7) of the sixteen (16) wells evaluated. 1,2-DCB appears
to be increasing in MW-3 and 1,4-DCB appears to be increasing in MW-B, MW-7, and MW-17-137. The
chlorinated benzene trends in the remaining wells are stable or decreasing.
In summary, a majority of the other VOCs are insufficient for trend analysis because of infrequent
detections. Trends of acetone in MW-7 appear to be increasing. Trends of DX in MW-3, MW-4A, MW-
5, MW-6, MW-6-192, MW-17-60, MW-17-137, and MW-18-78 appear to be increasing. Trends of DX in
surface water location SW-2A appear to be increasing. It is noted that the DX concentrations detected
in the surface water do not exceed the NC213 standard.
We conclude that the trend data provide sufficient evidence of natural attenuation of a majority of the VOCs
in the Other VOC category at the subject site with the exception of the specific VOCs and the specific locations
mentioned above.
4.3 Geochemical Conditions
Results of the NASP scoring of geochemical conditions and compounds present indicate that there is
"limited" to predominantly "strong" evidence for biodegradation of chlorinated solvents. This data
corroborates the results of the previous MNA reports published by others. We conclude that the observed
geochemical conditions are favorable for natural attenuation processes at the subject site. We also conclude
that continued collection of geochemical data on a semi-annual frequency is not beneficial due to redundancy,
historical result consistency, plume stability, and the trend analysis results. See Section 5.1 of this CAER.
Evaluation of geochemical parameters indicate that iron reduction and methanogenesis are predominantly
active TEAPs and that oxidation is a minimally active TEAR We conclude that the observed geochemical
conditions are favorable for natural attenuation processes at the subject site. We also conclude that continued
collection of geochemical data on a semi-annual frequency is not beneficial due to redundancy, historical
result consistency, plume stability, and the trend analysis results. See Section 5.1 of this CAER.
4.4 General Summary and Conclusions
The data in this CAER indicates that the VOCs present in groundwater have degraded or should continue
to degrade. Geochemical conditions at the site are favorable for continued natural attenuation processes at
the subject site. Overall, the VOC plume appears stable. The current data indicates that additional
injections of carbon substrate are not needed at this time.
A small number of VOCs in localized areas appear to exhibit increasing concentration trends. These VOCs
were not the target of the remedial efforts in the CAP. Please refer to the recommendations in the following
sections of this report which addresses these issues.
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Old Buncombe County Landfill — Woodfin, North Carolina March 30, 2022
CAER — WQ Data through October 2021 BLE Project No. J20-14175-03
5.0 RECOMMENDATIONS
5.1 Proposed Future Monitoring Matrix
The findings of this CAER indicate that continued collection and analysis of groundwater geochemical data
(MNA parameters) on a semi-annual frequency does not provide useful data. We recommend that the
frequency of groundwater geochemical data be changed to twice every five (5) years with the next sampling
events to be scheduled for April 2026 and October 2026 (Table 1A). Please note that changes to the field
sampling parameters in the matrix are not proposed. A UIC permit modification to incorporate the proposed
matrix will be submitted to the DWR after approval by the SWS.
5.2 Continuation of the Approved Remedies
The approved remedies of Monitored Natural Attenuation (MNA), Intuitional Controls, and In Situ Enhanced
Bioremediation and Bioaugmentation should continue as the remedial actions for the site. The next
evaluation should be performed on data collected during the April 2026 and October 2026 sampling events
and the CAER should be submitted in 2027. Plans for renewal or closure of the UIC permit (which expires
on August 31, 2025) should be prepared and submitted to the DWR in early 2025 in accordance with the
permit requirements. Please reference the proposed matrix in the following section of this report for future
monitoring details.
5.3 Voluntary Supplemental Remedy
Chlorinated solvents and other classes of VOCs present in groundwater have degraded or should continue
to degrade. However, trends of a limited number of VOCs (DX in particular) indicate that supplemental
remedial actions may be beneficial. We recommend that phytoremediation be evaluated as a voluntary
supplemental remedy to address the subject VOCs. The evaluation, remedy selection, and corrective action
plans should be prepared and submitted in three (3) phases. Phase I may include: 1) an assessment of the
condition, type, and efficacy of the existing flora; 2) an assessment of soil conditions and groundwater
chemistry; and 3) an assessment of water quality at the groundwater -surface water boundary. Phase II may
include selection of remedy in accordance with the solid waste rules. Phase III may include submittal of
a CAP addendum which may include: 1) preparation of design plans; 2) preparation of bid packages and
contractor selection; 3) procurement of selected flora; 4) the installation of flora and irrigation; and 5)
ongoing monitoring and maintenance (inspection, testing, and normal horticultural practices). Please note
that some elements of the CAP addendum may not be required depending on the findings of the Phase I
assessments. We recommend preparation and submittal of an update to the status of Phase I of the
voluntary supplemental remedy to the SWS on or before December 30, 2022.
5.4 Assessment Near MW-7
The source of the VOC impacts in the MW-7 area is unclear since this well was dry for an extended period.
We recommend performance of an assessment of the nature and extent of the impacts (and potential source)
in accordance with the solid waste rules. The assessment should include sampling of inactive downgradient
groundwater monitoring wells and of downgradient surface water (if present) for VOC analysis. We
recommend preparation and submittal of an assessment status update to the SWS on or before August 31,
2022.
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Old Buncombe County Landfill — Woodfin, North Carolina March 30, 2022
CAER — WQ Data through October 2021 BLE Project No. J20-14175-03
6.0 QUALIFICATIONS OF REPORT
The activities and evaluative approaches used in this CAER are consistent with those normally employed in
hydrogeological and environmental assessments of this type. Our evaluation of site conditions has been based
on our understanding of the site and project information and the data provided to BLE.
This report has been prepared on behalf of and exclusively for the use of Buncombe County, North Carolina.
This report and the findings contained herein shall not, in whole or in part, be used or relied upon by any other
party (excluding the DWM and DWR) without BLE's prior written consent.
7.0 CLOSING
We appreciate the opportunity to be of service to Buncombe County, North Carolina. Please contact us at
[phone] if you have any questions or comments.
12 of 12

Tables

Table 1
SWS Approved Groundwater Sampling and Analysis Matrix
Old Buncombe County Landfill
Woodtin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Standard Semi -Annual Laboratory Parameters
Standard Semi -Annual Field Parameters
Semi -Annual Geochemical Parameters for MNA
Monitoring Well
Well Status
Transect
Number
Appendix I VOCs
(EPA 8260B)
1,4-dioxane
(EPA 8260 SIM)
Appendix I1
Full List
(Various Methods)
Appendix I
Metals
WL
Turb
Temp
pH
ORP
DO SC:
Alkalinity DH VFA TOC
BOD
COD
Chloride COZ
Fee
NO3
MEE
SO4
Sulfide
DPLA
Active
5
Y
Y O
Y -
Y
Y
Y
Y
Y
Y
Y
Y
DPL-2
Injection
4
MW-A
Inactive
Active
-
Y
MW-B
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-2
Active
-
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-3
Active
3
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-4
Active
4
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-4A
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-5
Active
5
Y
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
MW-6
Active
5
Y
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-6-192
Active
5
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-7
Active
-
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-8
Inactive
Y
MW-9
Abandoned
MW-10
Abandoned
MW-12-10
Inactive
-
Y
MW-12-25
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-13-10
Inactive
-
Y
MW-13-35
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-13-132
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-14
Inactive
-
Y
MW-15
Active
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-16
Abandoned
MW-17
Abandoned
MW-17-60
Active
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-17-137
Active
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-17-310
Active
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-18-3
Inactive
Y
MW-18-78
Active
5
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-19-4
Inactive
-
Y
MW-19-75
Active
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-19-110
Active
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-20-3
Inactive
-
Y
MW-20-32
Inactive
Y
MW-21-4
Inactive
-
Y
MW-21-21
Active
3
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-21-94
Active
3
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-22-78
Inactive
-
Y
MW-22-143
Inactive
Y
MW-23-119
Inactive
-
Y
MW-23-186
Inactive
Y
MW-24-45
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-24-160
Active
1
Y
Y
Y
Y
Y
Y
I Y
Y
Y
Y
Y
Y
Y
Y
Y
Y Y
Y
I Y
Y
Y
Y
Notes:
Typical Events: April (Spring) and October (Fall)
O = October (Fall) Only
VOCs = Volatile Organic Compounds
SWS Approved Matrix on September 1, 2020
BOD = Biologic Oxygen Demand
COD = Chemical Oxygen Demand
40 CFR Part 258 Appendix I - Constituents for Detection Monitoring (Organics and Inorganics)
40 CFR Part 258 Appendix II - Constituents for Assessment Monitoring (Full List)
WL = Water Level
ORP = Oxidation Reduction Potential
DO = Dissolved Oxygen
SC = Specific Conductance
DH = Dissolved Hydrogen
VFA = Volatile Fatty Acids
TOC = Total Organic Carbon
Fe' = Iron II
NO3 = Nitrate
MEE = Methane/Ethene/Ethane
SO4 = Sulfate
CO2 = Carbon Dioxide
Tl GW Approved Matrix of CAER Tables 1 to 5.xlsx
Prepared By: AWA
Checked By: TJD

Table 1A
Proposed Groundwater Sampling and Analysis Matrix
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Standard Semi -Annual Laboratory Parameters
Standard Semi -Annual Field Parameters
Geochemical Parameters for MNA (Sampled Every 5 Years**)
Monitoring Well
Well Status
Transect
Number
Appendix I VOCs
(EPA 8260B)
Appendix II
1,4-dioxane Full List
(EPA 8260 SIM) (Various Methods)
Appendix I
Metals
WL
Turb
Temp
pH
ORP
DO
SC
Alkalinity
DH
VITA
TOC
BOD
COD Chloride
CO2
Fee
NO3
MEE
SOa Sulfide
DPL-1
Active
5
Y
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
DPL-2
Injection
4
MW-A
Inactive
Y
MW-B
Active
2
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-2
Active
-
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-3
Active
3
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-4
Active
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-4A
Active
1
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-5
Active
5
Y
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
MW-6
Active
5
Y
Y
O
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-6-192
Active
5
Y
Y
-
Y
Y
Y
Y
Y
Y
Y
Y
MW-7
Active
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-8
Inactive
Y
MW-9
Abandoned
MW-10
Abandoned
MW-12-10
Inactive
Y
MW-12-25
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
I Y
MW-13-10
Inactive
Y
MW-13-35
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-13-132
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-14
Inactive
Y
MW-15
Active
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-16
Abandoned
MW-17
Abandoned
MW-17-60
Active
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-17-137
Active
2
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-17-310
Active
-
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-18-3
Inactive
-
Y
MW-18-78
Active
5
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-19-4
Inactive
-
Y
MW-19-75
Active
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-19-110
Active
4
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-20-3
Inactive
-
Y
MW-20-32
Inactive
Y
MW-21-4
Inactive
-
Y
NM-21-21
Active
3
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-21-94
Active
3
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-22-78
Inactive
Y
MW-22-143
Inactive
-
Y
MW-23-119
Inactive
Y
MW-23-186
Inactive
Y
MW-24-45
Active
1
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
MW-24-160
Active
1
Y
Y
Y
Y
Y
Y
Y
Y Y
Y Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Notes:
Typical Events: April (Spring) and October (Fall)
O = October (Fall) Only
VOCs = Volatile Organic Compounds
BOD = Biologic Oxygen Demand
COD = Chemical Oxygen Demand
40 CFR Part 258 Appendix I - Constituents for Detection Monitoring (Organics and Inorganics)
40 CFR Part 258 Appendix II - Constituents for Assessment Monitoring (Full List)
** 5 Year MNA sampling to be performed twice consecutively every 5 years. MNA sampling events are scheduled for Spring and Fall 2026, Spring and Fall 2031, Spring and Fall 2036, etc.
WL =
Water Level
ORP
= Oxidation Reduction Potential
DO =
Dissolved Oxygen
SC =
Specific Conductance
DH = Dissolved Hydrogen
VFA = Volatile Fatty Acids
TOC = Total Organic Carbon
Fee = Iron II
NO3 =
Nitrate
MEE
= Methane/Ethene/Ethane
SO4 =
Sulfate
CO2 =
Carbon Dioxide
T1A GW Prop Matrix of CAER Tables 1 to 5.xlsx
Prepared By: RLB
Checked By: AWA

Table 2
SWS Approved Surface Water Sampling and Analysis Matrix
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Standard Semi -Annual
Laboratory Parameters
Standard Semi -Annual Field Parameters
Surface
Water
Location
Location
Status
Appendix I VOCs
(EPA 8260B)
1,4-dioxane
(EPA 8260 SIM)
Appendix I
Metals
Turb
Temp
pH
ORP
DO
SC
SW-1
Active
Y
-
Y
Y
Y
Y
Y
Y
Y
SW-2
Active
Y
-
Y
Y
Y
Y
Y
Y
Y
SW-2A
Active
Y
Y
Y
Y
Y
Y
Y
Y
Y
SW-3
Active
Y
Y
Y
Y
Y
Y
Y
Y
Y
SW-4
Active
Y
Y
Y
Y
Y
Y
Y
Y
Y
SW-5
Inactive
-
-
-
-
-
-
-
-
-
SW-6
Inactive
-
-
-
-
-
-
-
-
-
SW-7
Inactive
-
-
-
-
-
-
-
-
-
SW-8
Inactive
-
-
-
-
-
-
-
-
-
SW-9
1 Inactive
-
-
-
-
I -
I -
I -
I -
I -
Notes:
Typical Events: April (Spring) and October (Fall)
VOCs = Volatile Organic Compounds
Y=Yes
40 CFR Part 258 Appendix I - Constituents for Detection Monitoring (Organics and Inorganics)
SWS Approved Matrix on September 1, 2020
T2 SW Approved Matrix of CAER Tables 1 to 5.xlsx
ORP = Oxidation Reduction Potential
DO = Dissolved Oxygen
SC = Specific Conductance
Prepared By: AWA
Checked By: TJD

Table 3
Well Construction and Monitoring Well Data
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Monitoring
Point
Northing
Eastingt
TOC
Elevation
(ft),
GS Elevation
(ft),
Depth to GW (ft)
October 25, 2021
Groundwater
Elevation (ft)
Well
Depth (ft)t
Screen Depth
(below GS)'
Geology Monitored)
Well
Status/Purpose
DPL-1
714,361.2
928,456.1
2040.73
2038.23
65.44
1975.29
65
55 - 65
Bedrock
Compliance
DPL-2
714,508.1
928,812.6
2112.15
2109.65
A
A
97
87 - 97
Bedrock
Injection
MW-A
714,654.47
931,068.90
2063.37
2061.90
NM
NM
33
23 - 33
Bedrock
DNA
MW-B
713,635.93
930,421.08
1960.86
1960.30
4.02
1956.84
15
5 - 15
Bedrock
Compliance
MW-2
715,052.9
930,063.8
2205.33
2203.40
107.22
2098.11
175
145 - 175
Bedrock
Background
MW-3
713,790.10
929,814.44
1991.15
1989.90
65.42
1925.73
90
60 - 90
Bedrock
Compliance
MW-4
714,177.83
928,875.09
2014.27
2013.60
72.09
1942.18
75
55 - 75
Bedrock
Performance
MW-4A
1713,351.70
931,195.02
2083.10
2082.50
67.89
2015.21
77
67 - 77
Bedrock
Compliance
MW-5
714,620.07
928,174.58
2019.73
2019.00
50.21
1969.52
80
70 - 80
Bedrock
Compliance
MW-6
715,103.13
928,152.69
2002.08
2000.30
0.00
2002.08
40
30 - 40
Bedrock
Performance
MW-6-192
715,146.34
928,113.86
2009.02
2006.73
25.84
1983.18
192
182 - 192
Bedrock
Compliance
MW-7
715,604.13
930,534.81
2108.86
2107.70
23.26
2085.60
29
14 - 29
Saprolite
Compliance
MW-8
716,107.98
930,308.94
2079.02
2077.20
25.43
2053.59
38
1 23 - 38
Saprolite
DNA
MW-9
716,024.04
928,619.48
2061.59
2060.00
A
A
29
14 - 29
Saprolite
DNA
MW-10
716,086.5
929,060.5
2049.67
2047.40
A
A
19
9 - 19
Saprolite
DNA
MW-12-10
DNA
DNA
2028.03
2024.94
Dry
Dry
8
4 - 8
Saprolite
DNA
MW-12-25
713,258.9
931,353.0
2029.98
2026.36
7.94
2022.04
26
16 - 26
Bedrock
Compliance
MW-13-10
713,000.2
931,279.7
2012.26
2009.85
3.95
2008.31
10
4 - 10
Saprolite
DNA
MW-13-35
713,023.1
931,236.9
2017.68
2014.13
6.86
2010.82
35
25 - 35
Bedrock
Compliance
MW-13-132
712,997.8
931,274.0
2012.89
2009.58
23.20
1989.69
132
122 - 132
Bedrock
Performance
MW-14
716,348.1
930,124.0
2053.46
2049.61
7.74
2045.72
55
40 - 55
Bedrock
DNA
MW-15
716,995.2
929,509.6
2028.08
2024.08
5.20
2022.88
72
62 - 72
Bedrock
Compliance
MW-16
716,170.0
929,107.2
2048.13
2045.13
A
A
94
84 - 94
Bedrock
DNA
MW-17
DNA
DNA
DNA
DNA
A
A
DNA
DNA -DNA
DNA
DNA
MW-17-60
713,339.0
930,205.8
1922.97
1920.35
22.91
1900.06
60
50 - 60
Bedrock
Compliance
MW-17-137
713,329.8
930,199.1
1921.73
1919.24
21.60
1900.13
137
127 - 137
Bedrock
Compliance
MW-17-310
713,302.4
930,207.9
DNA
1918.00
0.00
DNA
310
300 - 310
Bedrock
Compliance
MW-18-3
714,130.9
927,843.0
1895.62
1892.62
Dry
Dry
3
1 - 3
Flood Plain
DNA
MW-18-78
714,131.1
927,848.7
1894.62
1891.62
7.13
1887.49
78
68 - 78
Bedrock
Sentinel
MW-19-4
713,953.9
928,939.4
1902.27
1898.97
Dry
Dry
4
2 - 4
Flood Plain
DNA
MW-19-75
713,948.7
928,950.0
1900.72
1898.02
9.93
1890.79
75
65 - 75
Bedrock
Compliance
MW-19-110
713,951.7
928,942.4
1901.43
1898.53
10.62
1890.81
110
100 - 110
Bedrock
Sentinel
MW-20-3
713,865.0
929,310.2
1898.90
1895.90
Dry
Dry
3
2 - 3
Flood Plain
DNA
MW-20-32
713,879.0
929,332.7
1899.57
1896.67
6.34
1893.23
32
22 - 32
Bedrock
DNA
MW-21-4
713,810.5
929,567.5
1900.33
1896.73
Dry
Dry
4
2 - 4
Flood Plain
DNA
MW-21-21
713,826.6
929,581.7
1900.49
1897.49
5.92
1894.57
21
11 - 21
Bedrock
Performance
MW-21-94
713,829.5
929,577.5
1901.06
1897.76
8.34
1892.72
94
84 - 94
Bedrock
Sentinel
MW-22-78
716,370.39
930,380.26
2068.13
2065.92
24.49
2043.64
79
69 - 79
Bedrock
DNA
MW-22-143
716,306.96
930,320.49
2068.34
2066.17
43.97
2024.37
148
138 - 148
Bedrock
DNA
MW-23-119
716,014.05
930,476.24
2076.61
2074.37
42.98
2033.63
120
110 - 120
Bedrock
DNA
MW-23-186
716,004.53
930,480.42
2076.43
2074.29
52.06
2024.37
186
176 - 186
Bedrock
DNA
MW-24-45
711,372.03
930,963.221
1932.07
1 1929.82
Dry
Dry
1 45
1 35 - 45
Bedrock
Compliance
MW-24-160
711,435.81
931,042.73
1933.24
1 1930.93
93.97
1839.27
1 160
1 150 - 160
Bedrock
Sentinel
- Data from Table 1, Well Construction Summary, from Old Buncombe County Landfill Corrective Action Plan, by SCS Engineers, Dated September 3, 2014.
TOC - Top of Casing.
GS - Ground Surface.
DNA - Data Not Available
A - Abandoned
CAER Tables 1 to 5 Prepared By: RLB
T3 Well Const Oct 2021 Checked By: TAO/AWA

TABLE 4
Range of Groundwater Flow Velocities
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Hydraulic Conductivity
K(ft/min)
K(cm/sec)
K(ft/day)
High Estimate
3.9E-02
2.0E-02
56.10
Low Estimate
3.3E-03
1.7E-03
4.80
Geometric Mean
1.1E-02
5.8E-03
16.41
Geometric Mean Hydraulic
Conductivity K(ft/day)
Hydraulic
Grad. (ft/ft)
Effective
Porosity
Flow
Vel. (ft/day)
Flow
Vel. (ft/year)
High Estimate
16.41
0.267
5%
87.52
31,945
Low Estimate
16.41
0.027
5%
8.75
3,194
Notes:
1. Hydraulic conductivity and effeictive porosity values obtainted from the table titled April 2014 Groundwater Velocity Calculations
from the report titled Old Buncombe County Landfill Corrective Action Plan prepared by SCS dated September 3, 2014.
3. The hydraulic gradients were measured from the October 25-26, 2021 groundwater elevation contour map (Figure 2).
The high hydraulic gradient was measured between the 1900-ft & 1960-ft groundwater contours near MW-17-60 and MW-B.
The low hydraulic gradient was measured between the 2040-ft & 2020-ft groundwater contours near MW-14 and MW-15.
4. Groundwater velocity derived from V = Ki/ne where:
K = geometric mean hydraulic conductivity, i = hydraulic gradient, and ne = effective porosity.
5. The high and low velocity estimates are calculated using the geometric mean K and the high and low range of site hydraulic data
obtained from SCS's Corrective Action Plan. The accuracy is limited by the references used.
CAER Tables 1 to 5.xlsx Prepared By: RLB
T4 GW Flow Vel. Checked By: TAO/AWA

Table 5
Groundwater Transects for Remedial Monitoring
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Transect I
Transect 2
1 Transect 3
Transect 4
1 Transect 5
MW-4A
MW-B
MW-3
DPL-2 (AB)
MW-6
MW-12-25
MW-17-60
MW-21-21
MW-4
MW-6-192
MW-13-35
MW-17-137
MW-21-194
MW-19-75
MW-5
MW-13-132
MW-19-110
DPL-1
MW-24-45
MW-18-78
MW-24-160
Bold - MNA Performance Well
AB - Abandonded
CAER Tables 1 to 5.xlsx
T5 Transect Nos.

TABLE 6A
SUMMARY OF STATISTICAL TRENDS - VOCS in GROUNDWATER
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Chemical/
Compound
Well
Best Fit
Trendline Slope
Kendall -Mann
Trend Coefficient
General
Trend
Most Recent Concentration
above MCL
Chlorinated Ethenes
Tetrachloroethene
MW-4
-7.28E-04
-0.81
decrease
Yes
MW-7
-
insufficient
Yes
MW-13-35
-
insufficient
Yes
DPL-2
-2.06E-03
-0.68
decrease
Yes
Trichloroethene
MW-4
-6.10E-04
-0.77
decrease
No
MW-7
-1.97E-04
-0.57
decrease
No
MW-13-35
-2.05E-04
-0.62
decrease
No
MW-21-21
-1.34E-04
-0.19
stable
No
DPL-2
-9.78E-04
-0.78
decrease
No
Cis-1,2-dichloroethene
MW-B
3.52E-03
0.28
increase
No
MW-3
-3.09E-03
-0.65
decrease
No
MW-4
-1.36E-03
-0.32
decrease
No
MW-4A
-
insufficient
No
MW-5
-3.08E-04
-0.06
stable
No
MW-6
-1.72E-04
-0.12
stable
No
MW-7
-2.13E-03
0.07
stable
No
MW-12-25
-
insufficient
No
MW-13-35
-3.45E-03
-0.89
decrease
No
MW-13-132
-5.44E-03
-0.64
decrease
No
MW-17-60
2.79E-04
0.28
increase
No
MW-17-137
-
insufficient
No
MW-18-78
-1.07E-03
-0.28
decrease
No
MW-19-110
-1.23E-04
-0.04
stable
No
MW-21-21
-2.93E-03
-0.44
decrease
No
MW-21-94
-6.24E-04
-0.50
decrease
No
DPL-2
1.77E-03
-0.33
decrease
No
Vinyl Chloride
MW-B
1.91E-03
0.32
increase
Yes
MW-3
-7.11E-04
-0.60
decrease
Yes
MW-4
-1.25E-04
-0.07
stable
Yes
MW-4A
1.00E-04
0.23
stable
Yes
MW-5
-
insufficient
Yes
MW-6
-
insufficient
Yes
MW-13-35
8.25E-05
0.49
increase
Yes
MW-13-132
3.96E-04
0.53
increase
Yes
MW-17-60
9.35E-05
0.24
stable
Yes
MW-17-137
-2.10E-05
0.10
stable
Yes
MW-18-78
-1.97E-04
-0.16
stable
Yes
MW-21-21
-3.16E-04
-0.32
decrease
Yes
MW-21-94
1.61E-04
0.47
increase
Yes
DPL-2
-1.77E-03
0.62
increase
Yes
Chlorinated Ethanes
1,1-Dichloroethane
MW-B
4.47E-04
0.60
increase
NE
MW-3
-5.32E-03
-0.94
decrease
NE
MW-4
-6.50E-03
-0.89
decrease
NE
MW-5
-2.01E-06
0.11
stable
NE
MW-6
-2.09E-03
-0.88
decrease
NE
MW-6-192
-5.88E-04
-0.70
decrease
NE
MW-7
-2.80E-03
-0.71
decrease
NE
MW-13-132
-7.01E-04
-0.75
decrease
NE
MW-17-60
4.59E-04
-0.68
decrease
NE
MW-17-137
1.23E-05
-0.05
stable
NE
MW-18-78
-6.16E-04
-0.74
decrease
NE
MW-19-75
-7.81E-04
-0.73
decrease
NE
MW-19-110
-1.67E-04
0.08
stable
NE
MW-21-21
-3.69E-03
-0.65
decrease
NE
MW-21-94
-5.80E-04
-0.34
decrease
NE
DPIr2
1.19E-02
-0.90
decrease
NE
Chloroethane
MW-B
6.78E-05
0.21
stable
NE
MW-3
-1.05E-03
-0.50
decrease
NE
MW-4
-9.04E-04
-0.42
decrease
NE
MW-5
-3.19E-04
2.40
decrease
NE
MW-6
-7.28E-04
-0.57
decrease
NE
MW-6-192
-1.50E-04
-0.21
stable
NE
MW-7
2.27E-04
0.07
stable
NE
MW-17-137
-2.67E-04
-0.41
decrease
NE
MW-18-78
9.07E-05
0.01
stable
NE
MW-19-75
-5.08E-04
-0.69
decrease
NE
MW-19-110
-3.08E-04
-0.26
decrease
NE
MW-21-21
-1.54E-03
-0.69
decrease
NE
MW-21-94
-1.52E-03
-0.63
decrease
NE
DPL -2
1.04E-03
-0.20
stable
NE
Hydrocarbons
Benzene
MW-3
-1.94E-05
-0.09
stable
Yes
MW-4
2.56E-06
0.20
stable
No
MW-4A
-2.22E-04
-0.19
stable
Yes
MW-5
-7.77E-06
0.08
stable
No
MW-6
-5.29E-05
-0.19
stable
Yes
MW-7
6.34E-04
0.89
increase
Yes
MW-13-35
4.09E-04
-0.66
decrease
Yes
MW-13-132
3.70E-04
0.55
increase
Yes
MW-18-78
-
insufficient
No
MW-19-75
-
insufficient
No
MW-21-21
-5.00E-06
0.04
stable
Yes
DPL-2
8.29E-OS
-0.15
stable
Yes
Toluene
MW-4A
-2.28E-03
-0.50
decrease
No
MW-6
-
insufficient
No
MW-21-21
insufficient
No
DPL-2
-
insufficient
No
Ethylbenzene
MW-4A
-3.30E-03
-0.43
decrease
No
Xylenes
MW-3
1.48E-04
0.47
increase
No
MW-4A
-7.43E-03
-0.37
decrease
No
MW-7
1.91E-04
0.79
increase
No
MW-17-137
6.27E-05
0.46
increase
No
MW-21-21
insufficient
No
Notes:
1. MCL = North Carolina Maximum Contaminant Level
2. NE = Not Established; no MCL has been established for this compound
3. NA = Not Applicable
4. The Kendall -Mann Coefficient (c) can range from -1 to 1. Coefficients greater than 0 indicate a positive trend and less than
0 indicate a negative trend. Coefficients between -0.25 and 0.25 indicate a stable trend.
Table 6A-KM summary Prepared By: TAO
14175-03 Old Buncombe GW Trend Stats Checked By: IAI

TABLE 6B
SUMMARY OF STATISTICAL TRENDS - VOCS in GROUNDWATER
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No.1101-MSWLF-1979
BLE Project Number J20-14175-03
Chemical/
Compound
Well
Best Fit
Trendline Slope
Kendall -Mann
Trend Coefficient
General
Trend
Most Recent Concentration
above MCL
Chlorinated Benzenes
Chlorobenzene
MW-B
2.28E-04
0.59
increase
No
MW-3
5.82E-04
0.70
increase
No
MW-4
7.47E-04
0.77
increase
No
MW-4A
2.91E-03
0.44
increase
No
MW-5
-1.37E-03
-0.58
decrease
No
MW-6
-4.09E-04
-0.07
stable
No
MW-6-192
-2.25E-04
-0.38
decrease
No
MW-7
4.42E-03
0.94
increase
No
MW-12-25
-4.71E-04
0.10
stable
No
MW-13-35
-1.26E-03
-0.45
decrease
No
MW-18-78
8.59E-05
0.08
stable
No
MW-19-75
3.61E-04
0.28
increase
No
MW-19-110
1.50E-04
0.65
increase
No
MW-21-21
-2.25E-03
-0.32
decrease
No
MW-21-94
3.39E-05
-0.04
stable
No
DPL-2
1.32E-04
0.15
stable
No
1,2-Diehlorobenzene
MW-3
1.84E-04
0.45
increase
No
MW-4
-2.54E-04
-0.40
decrease
No
MW-4A
-1.99E-03
-0.73
decrease
No
MW-12-25
-6.56E-04
-0.22
stable
No
MW-13-35
-2.07E-03
-0.75
decrease
No
MW-18-78
insufficient
MW-21-21
-5.29E-04
-0.20
stable
No
MW-21-94
insufficient
DPL -2
-
insufficient
1,4-Dichlorobenzene
MW-B
4.18E-04
0.41
increase
No
MW-3
-4.71E-04
-0.42
decrease
No
MW-4
-2.07E-03
-0.65
decrease
No
MW-4A
-1.66E-02
-0.82
decrease
Yes
MW-5
-6.58E-04
-0.44
decrease
No
MW-6
-7.73E-04
-0.52
decrease
No
MW-6-192
-3.48E-04
-0.39
decrease
No
MW-7
1.75E-03
0.98
increase
No
MW-12-25
-4.60E-04
0.07
stable
No
MW-13-35
-1.27E-02
-0.77
decrease
Yes
MW-13-132
-4.03E-04
-0.47
decrease
No
MW-70-60
insufficient
MW-17-137
1.36E-04
0.44
increase
No
MW-18-78
-9.62E-05
-0.12
stable
No
MW-19-75
-1.01E-03
-0.40
decrease
No
MW-19-110
-1.95E-04
-0.04
stable
No
MW-21-21
-5.93E-04
-0.04
stable
Yes
MW-21-94
-2.61E-04
-0.30
decrease
No
DPL-2
5.55E-04
0.05
stable
No
Other VOCs
Acetone
MW-B
insufficient
No
MW-3
insufficient
No
MW-4
-1.60E-02
-0.14
stable
No
MW-4A
-1.25E-01
-0.38
decrease
No
MW-5
insufficient
No
MW-6
insufficient
No
MW-6-192
insufficient
No
MW-7
1.87E-03
0.34
increase
No
MW-17-60
insufficient
No
MW-17-137
insufficient
No
MW-17-310
insufficient
No
MW-18-78
insufficient
No
MW-19-75
insufficient
No
MW-19-110
insufficient
No
MW-21-21
insufficient
No
MW-21-94
-
insufficient
No
1,2-Dichloropropane
MW-13-35
insufficient
No
MW-13-132
-4.88E-04
-0.64
decrease
Yes
2-Butanone
MW-B
insufficient
No
MW-4A
-1.63E-01
-0.10
stable
No
MW-7
insufficient
No
MW-13-132
insufficient
No
MW-15
insufficient
No
MW-17-60
-
insufficient
No
4-Methyl-2-Pentanone
MW-4A
-2.19E-02
-0.20
stable
NE
1,4-Dioxane
MW-B
-6.10E-03
-0.35
decrease
Yes
MW-3
3.08E-02
0.62
increase
Yes
MW-4
-1.99E-03
-0.24
stable
Yes
MW-4A
3.18E-02
0.81
increase
Yes
MW-5
2.04E-02
0.62
increase
Yes
MW-6
1.44E-02
1.00
increase
Yes
MW-6-192
2.78E-03
0.43
increase
Yes
MW-17-60
7.05E-03
0.71
increase
Yes
MW-17-137
6.36E-03
0.71
increase
Yes
MW-18-78
5.49E-03
0.33
increase
Yes
MW-19-75
-4.44E-03
-0.24
stable
Yes
MW-19-110
-8.38E-04
0.10
stable
Yes
MW-21-21
3.88E-03
0.14
stable
Yes
MW-21-94
-3.27E-03
-0.10
stable
Yes
Notes:
1. MCL = North Carolina Maximum Contaminant Level
2. NE = Not Established; no MCL has been established for this compound
3. NA = Not Applicable
4. The Kendall -Mann Coefficient (r) can range from -1 to 1. Coefficients greater than 0 indicate a positive trend and less than
0 indicate a negative trend. Coefficients between -0.25 and 0.25 indicate a stable trend.
Table 6B-KM4summary Prepared By: TAO
14175-03 Old Buncombe GW Trend Stats Checked By: IAI

TABLE 7
SUMMARY OF STATISTICAL TRENDS - VOCs in SURFACE WATER
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Other VOCs
Chemical/
Compound
Sample Location
Best Fit
Trendline Slope
Kendall -Mann
Trend Coefficient
General
Trend
Most Recent Concentration
above NC2B
1,4-Dioxane
SW-2A
5.81E-03
0.68
increase
No
SW-3
-3.30E-02
-0.45
decrease
No
SW-4
-3.81E-02
-0.20
stable
No
Notes:
1. NC2B = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 2B.
2. NE = Not Established; no MCL has been established for this compound
3. NA = Not Applicable
4. The Kendall -Mann Coefficient (i) can range from -1 to 1. Coefficients greater than 0 indicate a positive trend and less than
0 indicate a negative trend. Coefficients between -0.25 and 0.25 indicate a stable trend.
Table 7-KM_summary Prepared By: TAO
14175-03 Old Buncombe SW Trend Stats Checked By: IAI

TABLE 8
Natural Attenuation Screening Protocol (NASP) Results
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
November 2019 Results
April 2020 Results
October 2020 Results
April 2021 Results
October 2021 Results
Monitoring Well
Score
Interpretation
Score
Interpretation
Score
Interpretation
Score
Interpretation
Score
Interpretation
MW-2
NA
Background Well
NA
Background Well
NA
Background Well
NA
Background Well
NA
Background Well
MW-4
27
Strong Evidence
20
Adequate Evidence
34
Strong Evidence
20
Adequate Evidence
28
Strong Evidence
MW-6
22
Strong Evidence
24
Strong Evidence
32
Strong Evidence
29
Strong Evidence
27
Strong Evidence
MW-13-132
23
Strong Evidence
28
Strong Evidence
28
Strong Evidence
27
Strong Evidence
24
Strong Evidence
MW-18-78
25
Strong Evidence
28
Strong Evidence
34
Strong Evidence
25
Strong Evidence
24
Strong Evidence
MW-19-75
16
Adequate Evidence
20
Adequate Evidence
24
Strong Evidence
22
Strong Evidence
27
Strong Evidence
MW-19-110
16
Adequate Evidence
23
Strong Evidence
25
Strong Evidence
22
Strong Evidence
23
Strong Evidence
MW-21-21
27
Strong Evidence
22
Strong Evidence
32
Strong Evidence
32
Strong Evidence
29
Strong Evidence
MW-21-94
23
Strong Evidence
28
Strong Evidence
30
Strong Evidence
33
Strong Evidence
32
Strong Evidence
MW-24-160
10
Limited Evidence
9
Limited Evidence
13
Limited Evidence
16
Adequate Evidence
10
Limited Evidence
Notes:
1. NASP from BioChlor Version 2.2 (US EPA, 2000)
2. Scores ranging from 0 to 5 indicate "inadequate evidence"
3. Scores ranging from 6 to 14 indicate "limited evidence"
4. Scores ranging from 15 to 20 indicate "adequate evidence"
5. Scores greater than 20 indicate "strong evidence"
14175-03 NASP Input and Summary Prepared By: AWA
Table 8 NASP summary Checked By: IAI/TAO

TABLE 9A
Summary of TEAP Parameters & Comparisons - November 2019 Sampling Event
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Background Well
Downgradient Wells
Parameter
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Dissolved Oxygen (mg/L)
4.7
0.3
0.5
1.2
0.4
0.2
0.5
0.4
1
1.1
Nitrate (mg/L)
<0.04
<0.04
<0.04
<0.04
0.049
<0.04
<0.04
<0.04
<0.04
0.043
Iron II (mg/L)
<0.5
2.5
4.0
3.5
3.5
<0.5
2.5
4.5
4.5
<0.5
Sulfate (mg/L)
3.11
27.9
2.03
9.4
2.3
15.6
14.3
26.3
2.88
23.1
Sulfide (mg/L)
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
<0.10
Methane (µg/L)
0.078 J
990
2900
670
1300
240
200
960
1900
0.46 J
Background Well Downgradient Wells
TEAP
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94 MW-24-160
Oxidation
BG
I
I
A
I
I
I
I
A
A
Denitrification
BG
I
I
I
I
I
I
I
I
I
Iron Reduction
BG
A
A
A
A
I
A
A
A
I
Sulfate Reduction
BG
I
I
I
I
I
I
I
I
I
Methanogenesis
BG
A
A
A
A
A
I
A
A
I
Notes:
1. BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes
2. TEAP = Terminal Electron -Accepting Processes
3. ND = Not Detected
4. NT = Not Tested
5. BG = Background Well
6. A = TEAP is potentially Active
7. I = TEAP is potentially Inactive
8. J values are estimated concentrations greater than the MDL and less than the PQL
9. Red text indicates detections from resampling event completed between March 2-3, 2020.
14175-03 TEAP Tables Prepared By: TAO
Table 9A-TEAP Nov 2019 Checked By: IAI

TABLE M
Summary of TEAP Parameters & Comparisons - April 2020 Sampling Event
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Background Well
Downgradient Wells
Parameter
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Dissolved Oxygen (mg/L)
5
1.2
0.9
0.36
1
0.6
0.7
0.8
0.6
0.7
Nitrate (mg/L)
0.014 J
<0.02
<0.02
<0.02
<0.02
<0.02
<0.02
<0.02
<0.02
<0.02
Iron II (mg/L)
<0.5
2.0
5.0
4.5
4.5
2.5
3.0
3.5
3.0
<0.5
Sulfate (mg/L)
2.9
24
1.3
8.2
1.4
14
12
38
2.2
23
Sulfide (mg/L)
<1.0
<1.0
<1.0
1.1
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Methane (µg/L)
3.0
0.20 J
1600
240
1400
0.28 J
690
1100
3700
490
Background Well Downgradient Wells
TEAP
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Oxidation
BG
A
I
I
A
I
I
I
I
I
Denitrification
BG
I
I
I
I
I
I
I
I
I
Iron Reduction
BG
A
A
A
A
A
A
A
A
I
Sulfate Reduction
BG
I
I
I
I
I
I
I
I
I
Methanogenesis
I BG
I
A
A
A
I
A
A
A
A
Notes•
1. BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes
2. TEAP = Terminal Electron -Accepting Processes
3. ND = Not Detected
4. NT = Not Tested
5. BG = Background Well
6. A = TEAP is potentially Active
7. I = TEAP is potentially Inactive
8. J values are estimated concentrations greater than the MDL and less than the PQL
14175-03 TEAP Tables Prepared By: RLB
Table 9B-TEAP apr 2020 Checked By: TAO/IAI

TABLE 9C
Summary of TEAP Parameters & Comparisons - October 2020 Sampling Event
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Background Well
Downgradient Wells
Parameter
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Dissolved Oxygen (mg/L)
1.8
0.4
0.4
0.6
0.3
0.5
0.3
0.4
0.6
0.5
Nitrate (mg/L)
0.028
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
Iron II (mg/L)
<0.5
6.0
3.0
7.0
3.0
2.0
2.5
7.0
2.0
1.5
Sulfate (mg/L)
4.1
21
0.78 J
7.2
1.2
11
9.7
13
2.2
27
Sulfide (mg/L)
<0.99
1.3
<0.99
<0.99
1.2
<1.0
<1.0
1.6
<1.0
<0.99
Methane (µg/L)
7.7
720
4700
1400
1700
480
400
1900
2000
27
Background Well Downgradient Wells
TEAP
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Oxidation
BG
I
I
I
I
I
I
I
I
I
Denitrification
BG
I
I
I
I
I
I
I
I
I
Iron Reduction
BG
A
A
A
A
A
A
A
A
A
Sulfate Reduction
BG
I
I
I
A
I
I
I
I
I
Methanogenesis
I BG
A
A
A
A
A
A
A
A
I
Notes•
1. BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes
2. TEAP = Terminal Electron -Accepting Processes
3. ND = Not Detected
4. NT = Not Tested
5. BG = Background Well
6. A = TEAP is potentially Active
7. I = TEAP is potentially Inactive
8. J values are estimated concentrations greater than the MDL and less than the PQL
14175-03 TEAP Tables Prepared By: TAO
Table 9C-TEAP Oct 2020 Checked By: IAI

TABLE 9D
Summary of TEAP Parameters & Comparisons - April 2021 Sampling Event
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Background Well
Downgradient Wells
Parameter
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Dissolved Oxygen (mg/L)
5.3
1.03
0.5
0.8
1.5
0.8
0.6
0.1
0.2
1.49
Nitrate (mg/L)
0.027
<0.025
<0.025
0.028 J
<0.025
0.012 J
<0.025
<0.025
<0.025
<0.025
Iron II (mg/L)
<0.5
6.0
3.0
6.0
5.0
>7.0
2.5
2.5
4.5
5.0
Sulfate (mg/L)
3.2
<0.2
1.1
7.8
2.2
17
12
23
3.3
23
Sulfide (mg/L)
1.2
<0.99
<0.99
<0.99
3.7
<0.99
<0.99
1.5
2.6
1.8
Methane (µg/L)
5200
3.6 J
680
3.5
450
1400
170
2200
2000
35
Background Well Downgradient Wells
TEAP
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Oxidation
BG
A
I
I
A
I
I
I
I
A
Denitrification
BG
I
I
I
I
I
I
I
I
I
Iron Reduction
BG
A
A
A
A
A
A
A
A
A
Sulfate Reduction
BG
I
I
I
A
I
I
I
I
I
Methanogenesis
I BG
I
A
I
A
A
I
A
A
I
Notes•
1. BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes
2. TEAP = Terminal Electron -Accepting Processes
3. ND = Not Detected
4. NT = Not Tested
5. BG = Background Well
6. A = TEAP is potentially Active
7. I = TEAP is potentially Inactive
8. J values are estimated concentrations greater than the MDL and less than the PQL
14175-03 TEAP Tables Prepared By: TAO
Table 9D-TEAP Apr 2021 Checked By: IAI

TABLE M
Summary of TEAP Parameters & Comparisons - October 2021 Sampling Event
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Background Well
Downgradient Wells
Parameter
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Dissolved Oxygen (mg/L)
6.4
0.4
0.3
1
0.6
0.2
0.4
0.3
0.2
4.2
Nitrate (mg/L)
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
<0.025
Iron II (mg/L)
<0.5
2.0
6.0
4.5
4.0
1.5
1.5
7.0
6.5
0.5
Sulfate (mg/L)
2.9
24
0.37 J
6.4
1.7
18
8.8
10
2.4
24
Sulfide (mg/L)
<0.99
<0.99
<0.99
<0.99
<0.99
<0.99
<0.99
<0.99
<0.99
<0.99
Methane (µg/L)
<2.5
270
1200
300
500
190
460
630
830
7.8
Background Well Downgradient Wells
TEAP
MW-2
MW-4
MW-6
MW-13-132
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-24-160
Oxidation
BG
I
I
A
I
I
I
I
I
A
Denitrification
BG
I
I
I
I
I
I
I
I
I
Iron Reduction
BG
A
A
A
A
A
A
A
A
A
Sulfate Reduction
BG
I
I
I
I
I
I
I
I
I
Methanogenesis
I BG
A
A
A
A
I
A
A
A
I
Notes•
1. BTEX = Benzene, Toluene, Ethylbenzene, and Total Xylenes
2. TEAP = Terminal Electron -Accepting Processes
3. ND = Not Detected
4. NT = Not Tested
5. BG = Background Well
6. A = TEAP is potentially Active
7. I = TEAP is potentially Inactive
8. J values are estimated concentrations greater than the MDL and less than the PQL
14175-03 TEAP Tables Prepared By: TAO
Table 9E -TEAP Oct 2021 Checked By: IAI

Figures

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REFERENCES:
Elk Mour USGS TOPOGRAPHIC MAP, 7.5
2000 1000 0 2000 4000 r MINUTE SERIES, WEAVERVILLE AND
LEICESTER. NC. QUADRANGLE 2019
APPROXIMATE SCALE IN FEET
DRAWN' KLW DATE: 3-11-22 BUNNELL FIGUREIM
M LAMMONS SITE LOCATION MAP
CHECKED: RLB CAD: BCOLF03—SLM M ENGINEERING CLOSED BUNCOMBE COUNTY LANDFILL
6004 Ponders Court, Greenville, SC 29615 WOODFIN, NORTH CAROLINA 1
APPROVED: AWA 1OB NO: J20-14175-03 Phone: [phone] Fax: [phone]

250 125 0 250 500
APPROXIMATE SCALE IN FEET
o�No 00
'.TION
ED BY
RAWING
CS
ACTIVE
MONITORING
WELLS
INACTIVE
MONITORING
WELLS
ABANDONED
MONITORING
WELLS
ACTIVE
SURFACE
WATER
SAMPLING
LOCATIONS
INACTIVE
SURFACE
WATER
SAMPLING
LOCATIONS
MW-2
MW-8
MW-9
SW-1
SW-5
MW-3
MW-12-10
MW-10
SW-2
SW-6
MW-4
MW-13-10
MW-16
SW-2A
SW-7
MW-4A
MW-14
MW-17
SW-3
SW-8
MW-5
MW-18-3
DPL-2
SW-4
SW-9
MW-6
MW-19-4
MW-6-192
MW-20-3
MW-7
MW-20-32
MW-12-25
MW-21-4
MW-13-35
MW-22-78
MW-13-132
MW-22-143
MW-15
MW-23-119
MW-17-60
MW-23-186
MW-17-137
MW-A
M W-17-310
MW-18-78
M W-19-75
MW-19-110
MW-21-21
M W-21-94
M W-24-45
MW-24-160
DPL-1
MW-B
NOTE: ACTIVE SAMPLING MONITORING WELLS AND SURFACE LOCATIONS ARE TO BE
SAMPLED AND TESTED TWICE ANNUALLY. INACTIVE MONITORING WELLS ARE TO BE
CHECKED FOR DEPTH TO GROUNDWATER ONLY.
*WELL NOT USED FOR CONTOURING PURPOSES.
** WATER LEVELS COLLECTED BUT NO VERIFIABLE SURVEY DATA COLLECTED
FOR GROUNDWATER ELEVATION CONTOURING PURPOSES.
NM - NOT MEASURED
MW-2® ACTIVE GROUNDWATER MONITORING WELL
MW-8® INACTIVE GROUNDWATER MONITORING WELL
MW-8 & ABANDONED GROUNDWATER MONITORING WELL
SW-1- ACTIVE SURFACE WATER MONITORING LOCATION
SW-54 INACTIVE SURFACE WATER MONITORING LOCATION
TW-1
(abandoned) TEMPORARY INJECTION WELL (ABANDONED)
IW-1
INJECTION WELL
PROPERTY BOUNDARY
SURFACE WATER
POTENTIOMETRIC CONTOUR
CONTOUR INTERVAL = 20 FEET
GROUNDWATER FLOW DIRECTION
TOPOGRAPHIC SURFACE CONTOUR IN FEET ABOVE MSL
CONTOUR INTERVAL = 10 FEET
250 125 0 250 500
APPROXIMATE SCALE IN FEET
REVISIONS
No. DESCRIPTION BY
DRAWN: RLB
CHECKED: TAO
APPROVED: AWA
DATE: 3-11-22
CAD FILE: BCOLF-03POT102521
JOB NO: J20-14175-03
BUNNELL
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
GROUNDWATER ELEVATION CONTOUR MAP — OCTOBER 25, 2021
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE N0.

250 125 0 250 500
APPROXIMATE SCALE IN FEET
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB NO: J20-14175-03
BUNNELL
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
ACTIVE
MONITORING
WELLS
INACTIVE
MONITORINC
WELLS
�BANDONE[
IONITORINC
WELLS
ACTIVE
SURFACE
WATER
SAMPLING
LOCATIONS
INACTIVE
SURFACE
WATER
SAMPLING
LOCATIONS
MW-2
MW-8
MW-9
SW-1
SW-5
MW-3
MW-12-10
MW-10
SW-2
SW-6
MW-4
MW-13-10
MW-16
SW-2A
SW-7
MW-4A
MW-14
MW-17
SW-3
SW-8
MW-5
MW-18-3
DPL-2
SW-4
SW-9
MW-6
MW-19-4
MW-6-192
MW-20-3
MW-7
MW-20-32
MW-12-25
MW-21-4
MW-13-35
MW-22-78
MW-13-132
MW-22-143
MW-15
MW-23-119
MW-17-60
MW-23-186
MW-17-137
MW-A
MW-17-310
MW-18-78
MW-19-75
MW-19-110
M W-21-21
M W-21-94
M W-24-45
M W-24-160
DPL-1
M W-B
NOTE: ACTIVE SAMPLING MONITORING WELLS AND SURFACE LOCATIONS ARE TO BE
SAMPLED AND TESTED TWICE ANNUALLY. INACTIVE MONITORING WELLS ARE TO BE
CHECKED FOR DEPTH TO GROUNDWATER ONLY.
MW-2® ACTIVE GROUNDWATER MONITORING WELL
MW-8® INACTIVE GROUNDWATER MONITORING WELL
MW-8 & ABANDONED GROUNDWATER MONITORING WELL
SW-1- ACTIVE SURFACE WATER MONITORING LOCATION
SW-54 INACTIVE SURFACE WATER MONITORING LOCATION
PROPERTY BOUNDARY
SURFACE WATER
0+00 1+00 2+00
�1 TRANSECTS
LAN,
TRANSECT LOCATION MAP
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
250 125 0 250 500
APPROXIMATE SCALE IN FEET

500 250 0 500 1000
APPROXIMATE SCALE IN FEET
2040
2020
2000
1980
1960
If
1 r-------
SW-2AA)_
MW-V'
1 � SW-2
MW-18-78
MW-6-1
MW-5
MW-
/ DPL-1
I
I1/♦`DPL-2
SW-S MN/-4
AMA D
)-fs1Mw-19-110
►'"MW-'20`-;
CI
MW-20--:
1 ,
MW-21-94
MW-214
MW-21-21opw /
MW-3�
o
SW 3 MW-17-137
/ M, W_-17-310 MW-17-60
/
Mi \
/ o
MW 13-10
eN
1940
Z M W— 24-16
O
MW-24-45
Ld
—j -----_
LL.I 1920
SW-1-----------
--
------------------
----------------------
ND =____________________-----------------
1880
1860
IE 11to]
fEjZe7
fE19111
irl:Zi7
M.-Ill
! !
1W-4A !
1-2
AW A
SITE PLAN LEGEND
MW-2® ACTIVE GROUNDWATER MONITORING WELL
MW-8® INACTIVE GROUNDWATER MONITORING WELL
MW-8 ABANDONED GROUNDWATER MONITORING WELL
SW-1- ACTIVE SURFACE WATER MONITORING LOCATION
!
!
SW-54 INACTIVE SURFACE WATER MONITORING LOCATION
PROPERTY BOUNDARY
SURFACE WATER
D
1 TRANSECTS
01
TRA SECT I
STATION
MW-13-132 MW-13-35
MW-13-10�
MW-12-25
MW-4A
1'
2100
2080
2060
2040
2020
2000
1980
1960
1940
1920
1900
1880
1860
itZ111
iE:YZe]
M11111
ivM11
irL:111
CROSS SECTION LEGEND
EXISTING TOPOGRAPHY
GROUNDWATER
BEDROCK
SCREENED INTERVAL
SOIL
--------
BEDROCK
VERTICAL EXAGGERATION = 4X
LO
1
Inch
100 Feet
TOTAL CONCENTRATION OF
14.90 µg/L
VOCS FROM OCTOBER 2021
SAMPLING EVENT
NOTE:
APPROXIMATE BEDROCK DEPTH
IS FROM PBS & J AND SCS
ENGINEERING "COMPREHENSIVE
SITE ASSESSMENT REPORT"
DATED APRIL, 2005
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB NO: J20-14175-03
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
PROFILE OF TRANSECT 1-1'
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE NO.
4

500 250 0 500
APPROXIMATE SCALE IN FEET
oe Opp
SSW-3
/ MW-1 _ -7-370
i
m
ry� .
SITE PLAN LEGEND
MW-2®
ACTIVE GROUNDWATER MONITORING WELL
MW-8®
INACTIVE GROUNDWATER MONITORING WELL
MW-8
ABANDONED GROUNDWATER MONITORING WELL
SW-1-
ACTIVE SURFACE WATER MONITORING LOCATION
SW-54
INACTIVE SURFACE WATER MONITORING LOCATION
—
PROPERTY BOUNDARY
SURFACE WATER
TRANSECTS
I _
sw-245 ` \
I � \
MW-16-73 �.
I
I\ ' MW-6-192
MW-5
DPL-1
II
� DPL-2
SW-5 �
MW-4
AW
4 ;-,/
MW-19-75 MW-19-110 !
I ISW-4; j
j
MW-20-3 ! �
MW-20-32 -__
M))1)1 AFEA 0
/ 1-94
MW-21-21 --
i
\ MW-3
10
CROSS SECTION LEGEND
EXISTING TOPOGRAPHY SOIL
GROUNDWATER BEDROCK
BEDROCK WASTE
TOTAL CONCENTRATION OF
SCREENED INTERVAL 14.90 µg/L VOCS FROM OCTOBER 2021
SAMPLING EVENT
NOTE:
APPROXIMATE BEDROCK DEPTH
U- —` VERTICAL EXAGGERATION = 4X IS FROM PBS & J AND SCS
N ENGINEERING "COMPREHENSIVE
1 Inch SITE ASSESSMENT REPORT"
100 Feet DATED APRIL, 2005
��
Mw-9
I (Abandoned)
Q
! O
! (Abandon
MW-10
oo�
_ (Abar
2080
2060
2040
2020
2000
1980
1960
1940
1920
1900
1880
1860
z
0
j 1840
w
J
Ld
1820
1800
1780
1760
1740
1720
1700
1680
1660
1640
1620
2 TRANSECT 2-2'
STATION
2'
2080
2060
2040
2020
2000
1980
1960
1940
1920
1900
1880
1860
1840
1820
1800
1780
1760
1740
1720
1700
1680
1660
1640
1620
-11
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB NO: J20-14175-03
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
PROFILE OF TRANSECT 2-2'
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE NO.
5

500 250 0 500 1000
APPROXIMATE SCALE IN FEET
oe Opp
SSW-3
/ MW-1 _ -7-370
i
ry� .
SITE PLAN LEGEND
MW-2®
ACTIVE GROUNDWATER MONITORING WELL
MW-8®
INACTIVE GROUNDWATER MONITORING WELL
MW-8
ABANDONED GROUNDWATER MONITORING WELL
SW-1-
ACTIVE SURFACE WATER MONITORING LOCATION
SW-54
INACTIVE SURFACE WATER MONITORING LOCATION
—
PROPERTY BOUNDARY
SURFACE WATER
TRANSECTS
I _
sw-245 T ` \
I � \
' SW-2
MW-16-73 �.
I
I\ ' MW-6-192
MW-5
I
DPL-1
�I
DPL-2
SW-5 �
MW-4
AW
4
MW-19-75 MW-19-116 C
/W-4
�-
MW-20-32 -__
MW-21-94 /�IfG C
MW-21-211
10
••F�E•
/�11'� B _ BMW-21
CROSS SECTION LEGEND
EXISTING TOPOGRAPHY SOIL
GROUNDWATER BEDROCK
BEDROCK WASTE
TOTAL CONCENTRATION OF
SCREENED INTERVAL 14.90 µg/L VOCS FROM OCTOBER 2021
SAMPLING EVENT
NOTE:
APPROXIMATE BEDROCK DEPTH
U- —` VERTICAL EXAGGERATION = 4X IS FROM PBS & J AND SCS
N ENGINEERING "COMPREHENSIVE
1 Inch SITE ASSESSMENT REPORT"
100 Feet DATED APRIL, 2005
mw
3
2040
2020
2000
1980
1960
1940
1920
1900 —1 S,
ill
z
0
a
LLU 1860
1
Lv
1840
1820
1780
1760
1740
1720
1700
TRAN SECT 3-3 )
STATION
3'
2040
2020
2000
1980
1960
1940
1920
1840
1820
1780
1760
1740
1720
1700
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB NO: J20-14175-03
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
PROFILE OF TRANSECT 3-3'
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE NO.
6

500 250 0 500 1000
APPROXIMATE SCALE IN FEET
oe Opp
SSW-3
MW-1 _ �7-370
1-&�, k,, �(t!,
ry� .
SITE PLAN LEGEND
MW-2®
ACTIVE GROUNDWATER MONITORING WELL
MW-8®
INACTIVE GROUNDWATER MONITORING WELL
MW-8
ABANDONED GROUNDWATER MONITORING WELL
SW-1-
ACTIVE SURFACE WATER MONITORING LOCATION
SW-54
INACTIVE SURFACE WATER MONITORING LOCATION
—
PROPERTY BOUNDARY
SURFACE WATER
TRANSECTS
I _
sw-245 T ` \
I � \
MW-16-73 �.
I
\ ' MW-6-192
MW-5
I
DPL-1
�I r
DPL-2
SW;S MW-4
AFEA D
MW-19-75 MW-1&110 l !
. r.
i /sw,
0-3
MW-20-32 -__
)JJ1)11�� ,Flan C o
lb MW- 1-94
/ �%1l��
MW-21-21 -�
.:;../
MW-3 ^
10 fU)
gMW-2�
CROSS SECTION LEGEND
EXISTING TOPOGRAPHY SOIL
GROUNDWATER BEDROCK
BEDROCK WASTE
TOTAL CONCENTRATION OF
SCREENED INTERVAL 14.90 µg/L VOCS FROM OCTOBER 2021
SAMPLING EVENT
NOTE:
APPROXIMATE BEDROCK DEPTH
U- VERTICAL EXAGGERATION = 4X IS FROM PBS & J AND SCS
N ENGINEERING "COMPREHENSIVE
1 Inch SITE ASSESSMENT REPORT"
100 Feet DATED APRIL, 2005
1
mw-
4
2160
2140
2120
2100
2080
2060
2040
2020
2000
1980
1960
1940
z
0
a
J1920
Ld
1900
1880
1860
1840
1820
1800
1780
1760
1740
1720
1700
TRANSECT 4-4'
STATION
)0
4'
2160
2140
2120
2100
2080
2060
2040
2020
2000
1980
1960
1940
1920
1900
1880
1860
1840
1820
1800
1780
1760
1740
1720
1700
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB No: J20-14175-03
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
PROFILE OF TRANSECT 4-4'
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE NO.
7

I
SW-2A
' $W-2,
y�MW-18-78
I
MW-6-192
500 250 0 500 1000
I�MW-5
APPROXIMATE SCALE IN FEET MW-6
I � !
0
DPL-1
' DPL-2
�5 �
MW-41
AW
41-,/ �fl
MW-19-75 MW-19-110 !
I /SW-4; j
MW-20-3 !
0-32
MW-20-32 -__
M))1)1 AFEA 0
MW-1-21 2121 --
i
MW-3 ! ^O
opfU)
10
/kFEA 8 ! MW-2
.SW-3 �_
MW-17-137 -
/ MW-17-310 MW-17-60 ------/
/ MW-B
1 SW-1 . •9W-6
MWW-24 -160 r MW
/
MW-3
� \ MW-13-132 13-35
M25 ! AMA
SA
MW-13-10 MW-12-25
SITE PLAN LEGEND
MW-2®
ACTIVE GROUNDWATER MONITORING WELL
MW-8®
INACTIVE GROUNDWATER MONITORING WELL
MW-8
ABANDONED GROUNDWATER MONITORING WELL
SW-1-
ACTIVE SURFACE WATER MONITORING LOCATION
SW-54
INACTIVE SURFACE WATER MONITORING LOCATION
—
PROPERTY BOUNDARY
SURFACE WATER
TRANSECTS
CROSS SECTION LEGEND
EXISTING TOPOGRAPHY SOIL
GROUNDWATER BEDROCK
BEDROCK
TOTAL CONCENTRATION OF
14.90 µg/L VOCS FROM OCTOBER 2021
SAMPLING EVENT
SCREENED INTERVAL
NOTE:
APPROXIMATE BEDROCK DEPTH
IS FROM PBS & J AND SCS
ENGINEERING "COMPREHENSIVE
,0 SITE ASSESSMENT REPORT"
N VERTICAL EXAGGERATION = 4X DATED APRIL, 2005
1 Inch
100 Feet
!
i B
5
MW-9
I (Abandoned)
Q
! O
! 2100
(Abandoned)
M W-�
invnld-io2
0
•
2080
2060
2040
! m-
W-8
!
MW-7 MW-/
MW-23-186
2020
2000
1980
1960
1940
1920
z
0
Q 1900
w
J
Ld
S'
1880
1860
1840
1820
1800
1780
1760
1740
1720
1700
TRANSECT 5-5'
STATION
5'
2100
2080
2060
2040
2020
2000
1980
1960
1940
1920
1900
1880
1860
1840
1820
1800
1780
1760
1740
1720
1700
REVISIONS
No. DESCRIPTION BY
DRAWN: KLW
CHECKED: RLB
APPROVED: AWA
DATE: 3-22-22
CAD FILE: BCOLF-03CSLP
JOB NO: J20-14175-03
� LAMMONS
ENGINEERING
6004 Ponders Court, Greenville, SC 29615
Phone: [phone] Fax: [phone]
PROFILE OF TRANSECT 5-5'
OLD BUNCOMBE COUNTY LANDFILL
WOODFIN, NORTH CAROLINA
FIGURE NO.
11

APPENDIX A
GROUNDWATER VOC SUMMARY TABLES

Table A-1
Groundwater VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. November 11-15, 2019 and Resampled on March 2-3, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-132
MW-15
MW-17-60
MW-17-137
MW-17-310
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-2445
MW-24-160
DPL-1
DPL-2
Acetone
µo
25
25
6,000
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
<25.0
Dry
<25.0
Dry
NS
Acrylonitrile
49/1
10
10
NE
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<10.0
<10.0
<I0.0
<10.0
<10.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<10.0
<10.0
Dry
<10.0
Dry
NS
Benzene
µg/1
1.0
1.0
1.0
<LO
<1.0
1.1
<1.0
4.0
<1.0
1.1
<1.0
1.6
<1.0
1.4
1.2
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
1.7
<LO
Dry
<LO
Dry
NS
Bromochloromethane
µg/l
1.0
1.0
NE
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Bromodichloromethane
µg/l
1.0
1.0
0.6
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Bromoform
µg/l
1.0
1.0
4.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Carbon Disulfide
µg/l
2.0
1 2.0
700
<2.0
1 <2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
1 Dry
NS
Bromomethane (Methylbromide)
µg/1
2.0
2.0
10.0 (1)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Carbon tetrachloride
µg/l
1.0
1.0
0.3
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Chlorobenzene (mono)
µg/l
1.0
1.0
50
<LO
<1.0
3.0
4.5
10.3
6.7
8.2
1.1
5.6
<1.0
6
<1.0
<LO
<1.0
<LO
<1.0
3.6
4.8
<LO
12.8
1.1
Dry
<LO
Dry
NS
Chloroethane
µg/l
1.0
1.0
3,000
<LO
<1.0
2.7
<1.0
<LO
1.1
5.7
<1.0
2.2
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
2.4
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Chloroform
µg/l
5.0
5.0
70
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
Chloromethane (Methylchloride)
µg/l
1.0
1.0
3.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Dibromochloromethane
µg/l
1.0
1.0
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dibromo-3chloropropane; DBCP
49/1
5.0
5.0
0.04
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
1,2-Dibromoethane; Ethylene dibromide
49/1
1.0
1.0
0.02
<LO
<1.0
<I.0
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<I.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Dibromomethane
µg/l
1.0
1.0
70.0 (i)
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dichlorobenzene
µg/l
1.0
1.0
20.0
<LO
<1.0
<1.0
<1.0
5
<1.0
<LO
<1.0
<LO
<1.0
3.6
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
3
<LO
Dry
<LO
Dry
NS
1,4-Dichlorobenzene
µg/l
1.0
1.0
6.0
1.2
<1.0
6.8
6.6
42.6
4.9
3.3
<1.0
2.5
<1.0
17.1
<1.0
<LO
<1.0
<LO
<1.0
2.6
4.9
<LO
10.7
2
Dry
<LO
Dry
NS
trans-1,4-Dichloro-2-butene
49/1
1.0
1.0
NE
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1-Dichloroethane
49/1
1.0
1.0
6.0
1.2
<1.0
3.9
7.6
<1.0
<1.0
1.9
<1.0
4.4
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
2.5
<LO
Dry
<LO
Dry
NS
1,2-Di6loroethane
49/1
1.0
1.0
0.4
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1-Dichloroethene(-ethylene)
µg/l
1.0
1.0
350
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
cis-1,2-Dichloroethene (ethylene)
µg/l
1.0
1.0
70
12.7
<1.0
1.3
15.6
<1.0
<1.0
<LO
<1.0
21.6
<1.0
2.9
9
<LO
1.1
<LO
<1.0
<LO
<1.0
<LO
5.3
2.2
Dry
<LO
Dry
NS
trans-1,2-Dichloroethene (-ylene)
µg/l
1.0
1.0
100
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dichloropropane
µg/l
1.0
1.0
0.6
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
cis-1,3-Dichloropropene (-propylene)
49/1
1.0
1.0
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
trans-1,3-Dichlompropene (-propylene)
49/1
1.0
1.0
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Ethylbenzene
µg/l
1.0
1.0
600
<LO
<1.0
<LO
<1.0
2.9
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
2-Hexanone
µg/l
5.0
5.0
40.0 (1)
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
lodomethare
49/1
20.0
20.0
NE
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Dry
<20.0
Dry
NS
Dichlorometha re (Methylene chloride
1
5.0
5.0
5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
2-Butanone (Methyl ethyl ketone)
µg/l
5.0
5.0
4,000
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
4-Methyl-2-Pentanone
µg/l
5.0
5.0
NE
<5.0
<5.0
<5.0
<5.0
11.7
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
Styrene
µg/l
1.0
1.0
70.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
NS
1,1,1,2-Tetrachloroethane
49/1
1.0
1.0
1.0 (i)
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1, 1,2,2-Tetrachloroethane
µg/l
1.0
1.0
0.2
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Tetrachloroethene (-ethylene)
µg/l
1.0
1.0
0.7
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Toluene
µg/l
1.0
1.0
600
<LO
<1.0
<LO
<1.0
1.6
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1,1-Trichloroethane
49/1
1.0
1.0
200
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1,2-Trichloroethane
µg/l
1.0
1.0
0.6 (i)
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Trichloroethene (ethylene)
µg/l
1.0
1.0
3.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
1.1
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Tricldorofluoromethane
µg/l
1.0
1.0
2,<I.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<I.0
<1.0
<I.0
Dry
<LO
Dry
NS
1,2,3-Trichlompropane
µg/l
1.0
1.0
0.<1.0
<1.0
<1.0
<1.0
<I.0
<1.0
<LO
<1.0
<LO
S
Vinyl acetate
µg/l
2.0
2.0
8.<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
S
Vinyl chloride
1.0
1.0
0.j03518
<1.0
1.3
2.3
<1.0
<1.0
<1.0
<1.0
<O
S
Total Xylenes
µg/l
1.0
1.0
<.0
<1.0
<1.0
<1.0
4.9
<1.0
<1.0
<1.0
S
1,4-Dion
µg/l
2.0
2.0
37.2
<2.0
87.8
18.8
30.4
53.4
25.9
5.7
<2.0
<2.0
<2.0
<2.0
<2.0
24.1
29.7
<2.0
43.7
79.8
27
45.6
46.1
Dry
<2.0
Dry
NS
4-Chloro-3-methyl phenol
µg/l
NE
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Diethylphthalate
µg/l
6,000
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Naphthalene
µg/l
1.0
1 1.0
6
NT
<1.0
NT
NT
NT
<1.0
<LO
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Other App. 11 Volatile Organic Compounds (VOC's)
Various
Various
I Various
Various
NT
ND
NT
NT
NT
ND
ND
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of 1MACs
4. Shaded cells indicated exceedances of MCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quantitation
7. DL = Detection Limit
8. NT -Not Tested
9. NS = Not Sampled
10. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
11. Red text indicates detections from resampling event completed between March 2-3, 2020.
14175-03 Apx A - GW VOCs.xlsx Prepared By: TJD
Table 5 VOC Nov 2019 Checked By: IAUAWA

Table A-2
Groundwater VOCs
Old Buncombe County Landfill
Woodfln, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April 27, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-132
MW-15
MW-17-60
MW-17-137
MW-17-310
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-2445
MW-24-160
DPL-1
DPL-2
Acetone
µo
20
0.4
6,000
<20.0
<20.0
<20.0
<20.0
54
<20.0
5.5 J
8.5 J
5.1 J
<20.0
<20.0
<20.0
9.4 J
<20.0
<20.0
5.2 J
5.9 J
<20.0
<20.0
<20.0
<20.0
Dry
<20.0
Dry
NS
Acrylormnle
49/1
20
0.40
NE
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Dry
<20.0
Dry
NS
Benzene
µg/1
1.0
0.40
1.0
<LO
<1.0
1.6
0.81 J
5.9
0.68 J
1.4
<1.0
1.5
<1.0
1.8
1.8
<LO
<1.0
<LO
<1.0
<LO
0.50 J
<LO
2.1
<LO
Dry
<LO
Dry
NS
Bromochloromethane
µg/l
1.0
0.40
NE
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Bromodichloromethane
49/1
1.0
0.40
0.6
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Bromoform
µg/l
1.0
0.50
4.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Carbon Disulfide
µg/l
1.0
1 0.80
700
<LO
I <1.0
<1.0
0.49 J
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
I Dry
NS
Bromomethane (Methylbromide)
µg/1
2.0
0.40
10.0 (i)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Carbon tetrachloride
µg/l
1.0
0.40
0.3
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Chlorobenzene (mono)
µg/l
1.0
0.40
50
1.1
<1.0
4.2
5
16
9.1
10.0
1.3
7.4
<1.0
7.2
<1.0
<LO
<1.0
<LO
<1.0
3.3
5.1
<LO
18
1.5
Dry
<LO
Dry
NS
Chloroethane
µg/l
2.0
0.40
3,000
0.65 J
<2.0
3.4
2
<2.0
1.2 J
4.2
0.77 J
2.4
<2.0
<2.0
<2.0
<2.0
<2.0
0.49 J
<2.0
0.70 J
<2.0
0.58 J
<2.0
2.8
Dry
<2.0
Dry
NS
Chloroform
µg/l
1.0
0.40
70
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Chloromethane (Methylchloride)
µg/l
1.0
0.50
3.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Dibromochloromethane
µg/l
1.0
0.40
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dibromo-3chloropropane; DBCP
49/1
1.0
0.40
0.04
<LO
<1.0
<LO
<1.0
<I.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dibromoethane; Ethylene dibromide
49/1
1.0
0.40
0.02
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Dibromomethane
µg/l
1.0
0.40
70.0 (i)
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dichlorobenzene
µg/l
1.0
0.40
20.0
<LO
<1.0
0.89 J
0.53 J
6.7
<1.0
<LO
<1.0
<LO
<1.0
5
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
3.1
<LO
Dry
<LO
Dry
NS
1,4-Dichlorobenzene
µg/l
1.0
0.40
6.0
1.9
<1.0
9.1
5.8
56
6.8
4.2
0.55 J
3.4
<1.0
23
1.2
<LO
1.3
0.73 J
<1.0
2.5
5.1
0.44 J
9.7
2.7
Dry
<LO
Dry
NS
trans-1,4-Dichloro-2-butene
49/1
2.0
0.50
NE
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
El-Dichloroethane
49/1
1.0
0.40
6.0
1.7
<1.0
2.8
7.9
<1.0
0.68 J
2.5
0.69 J
3.2
<1.0
<1.0
1.2
<LO
1.2
0.80 J
<1.0
0.96 J
0.69 J
<LO
2.9
0.81 J
Dry
<LO
Dry
NS
1,2-Dichloroethane
49/1
1.0
0.40
0.4
<LO
<1.0
0.47 J
0.49 J
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
0.47 J
Dry
<LO
Dry
NS
1,1-Dichloroethene(-ethylene)
49/1
1.0
0.40
350
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
Dry
<LO
Dry
NS
cis-1,2-Dichloroethene (-ethylene)
µg/l
1.0
0.40
70
23
<1.0
0.99 J
15
1.2
<1.0
0.60 J
<1.0
19
<1.0
3.1
8.4
<LO
1.8
<LO
<1.0
0.99 J
<1.0
0.46 J
6.5
2.5
Dry
<LO
Dry
NS
trans-1,2-Dichloroethene (-ylene)
µg/l
1.0
0.40
100
<LO
<1.0
<LO
<1.0
0.46 J
<1.0
<LO
<1.0
<LO
<1.0
0.40 J
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2-Dichloropropane
49/1
1.0
0.40
0.6
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
cis-1,3-Dichloropropene (-propylene)
49/1
1.0
0.40
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
trans-1,3-Dichlompropene (-propylene)
49/1
1.0
0.40
0.4
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Ethylbenzene
µg/l
1.0
0.40
600
<LO
<1.0
<LO
<1.0
11
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
2-Hexanone
µg/l
10.0
2.0
40.0 (1)
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
Dry
<10.0
Dry
NS
lodomethare
49/1
5.0
0.40
NE
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
Dichloromethare (Methylene chloride
1
1.0
0.40
5.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
Dry
<1.0
Dry
NS
2-Butanone (Methyl ethyl ketone)
µg/l
10.0
2.0
4,000
2.2 J
<I0.0
<10.0
<I0.0
140
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
2.3 J
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
Dry
<10.0
Dry
NS
4-Methyl-2-Pentanone
49/1
10.0
2.0
NE
<10.0
<I0.0
<10.0
<I0.0
32
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
<I0.0
<10.0
Dry
<10.0
Dry
NS
Styrene
µg/l
1.0
0.41
70.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
NS
1,1,1,2-Tetrachloroethane
49/1
1.0
0.40
1.0 (i)
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1, 1,2,2-Tetrachloroethane
µg/l
1.0
0.40
0.2
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Tetrachloroethene (-ethylene)
49/1
1.0
0.40
0.7
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Toluene
µg/l
1.0
0.40
600
<LO
<1.0
<LO
<1.0
3.3
<1.0
0.40 J
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1,1-Trichloroethane
49/1
1.0
0.40
200
<LO
<1.0
<LO
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,1,2-Trichloroethane
µg/l
1.0
0.40
0.6 (i)
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
Trlchloroethene (-ethylene)
49/1
1.0
0.40
3.0
<LO
<1.0
<1.0
0.73 J
<I.0
<1.0
<LO
<1.0
0.81 J
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
0.43 J
<LO
Dry
<LO
Dry
NS
Tricldorofluoromethane
µg/l
1.0
0.40
2,000
<I.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
<I.0
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
<1.0
<LO
Dry
<LO
Dry
NS
1,2,3-Trichlompropane
µg/l
1.0
0.40
0.005
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<LO
<1.0
<1.0
<1.0
<LO
<1.0
<LO
<1.0
< .
<1.0
< .
<1.0
<1.0
Dry
<LO
Dry
NS
Vinyl acetate
µg/l
2.0
1.2
88.0 (1)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
12.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Vinyl chloride
49/1
5.0
0.40
0.03
7.7
<5.0
0.91 J
2.3
1.2
<5.0
<5.0
<5.0
<5.0
<5.0
0.64 J
2.3
<5.0
0.78 J
0.52 J
<5.0
0.58 J
<5.0
<5.0
1.6
0.92 J
Dry
<5.0
Dry
NS
Total Xylenes
µg/l
1.0
0.40
500
<1.0
<1.0
0.98 J
<1.0
19
<1.0
<1.0
<1.0
0.42 J
<1.0
<1.0
<1.0
<1.0
<1.0
0.46 J
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<LO
Dry
NS
1,4-Dioxane
µg/l
3.0
1.0
3.0
34
<3.0
92
25
15
65
28
5.2
<3.0
<3.0
<3.0
<3.0
<3.0
24
32
<3.0
50
96
29
18
48
Dry
<3.0
Dry
NS
4-Chlorc-3-methyl phenol
µp,/l
NE
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Diethylphthalate
µg/l
6,000
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Naphthalene
µg/1
6
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Other App. 11 Volatile Organic Compounds (VOC's)
Various
Various
I Various
Various
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of 1MACs
4. Shaded cells indicated exceedances of MCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quantitation
7. DL = Detection Limit
8. NT = Not Tested
9. NS = Not Sampled
10. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
14175-03 Apx A - GW VOCs.xlsx Prepared By: TJD
Table 5 VOC April 2020 Checked By: IAI

Table A-3
Groundwater VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. October 26-30, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-132
MW-15
MW-17-60
MW-17-137
MW-17-310
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-2445
MW-24-160
DPL-1
DPL-2
Acetone
µo
20
5.0
6,000
5.1 J
<5.0
7.6 J
6.7 J
<5.0
5.3 J
8.4 J
<5.0
16 J
<5.0
<5.0
<5.0
191
6.9 J
7.2 J
<5.0
9.0 J
6.6 J
5.7 J
7.0 J
7.1 J
Dry
<5.0
Dry
NS
Acrylormnle
49/1
20
0.80
NE
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
Dry
<0.80
Dry
NS
Benzene
µgIl
1.0
0.40
1.0
<0.40
<0.40
0.78 J
0.41 J
2.8
<0.40
0.87 J
<0.40
1.7
<0.40
1.7
1.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
1.8
<0.40
Dry
<0.40
Dry
NS
Bromochloromethane
µg/l
1.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Bromodichloromethane
µg/l
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Broawform
µg/l
1.0
0.40
4.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Carbon Disulfide
µg/l
1.0
1 0.40
700
<0.40
1 <0.40
<0.40
0.42 J
<0.40
<0.40
0.84 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
1.9
0.77 J
1.1
0.60 J
1.6
Dry
<0.40
Dry
NS
Bromomethane (Methylbromide)
µg/l
2.0
0.40
10.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Carbon tetrachloride
µg/l
1.0
0.40
0.3
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Chlorobenzene (mono)
µg/l
1.0
0.40
50
1.2
<0.40
3.6
4.3
13
7.1
8.8
1.3
9.9
<0.40
6.8
<0.40
<0.40
<0.40
<0.40
<0.40
3.3
4.8
0.55 J
13
1.2
Dry
<0.40
Dry
NS
Chloroethane
49/1
2.0
0.40
3,000
0.60 J
<0.40
2.6
1.9 J
<0.40
0.92 J
3.7
0.75 J
3.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.70 J
<0.40
0.81 J
<0.40
2.5
Dry
<0.40
Dry
NS
Chloroform
µg/l
1.0
0.40
70
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Chloromethane (Methylchloride)
µg/l
1.0
0.50
3.0
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
Dry
NS
Dibroawchloromethane
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dibromo-3chloropropane; DBCP
49/1
1.0
0.40
0.04
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dibromoethane; Ethylene dibromide
49/1
1.0
0.40
0.02
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Dibroanoaa;thane
µg/l
1.0
0.40
70.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dichlorobenzene
µg/l
1.0
0.40
20.0
<0.40
<0.40
0.77 J
0.56 J
3.5
<0.40
<0.40
<0.40
<0.40
<0.40
4.1
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.7
<0.40
Dry
<0.40
Dry
NS
1,4-Dichlorobenzene
µg/l
1.0
0.40
6.0
1.9
<0.40
6.5
5.5
32
4.7
3.7
0.61 J
3.9
<0.40
17
0.78 J
<0.40
<0.40
0.47 J
<0.40
2.5
4.2
0.64 J
12
1.6
Dry
<0.40
Dry
NS
trans-1,4-Dichloro-2-butene
49/1
2.0
0.50
NE
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
Dry
NS
El-Dichloroethane
49/1
1.0
0.40
6.0
1.7
<0.40
1.7
7.4
<0.40
0.64 J
2
0.66 J
2.7
<0.40
<0.40
0.73 J
<0.40
0.68 J
0.65 J
<0.40
0.94 J
0.58 J
<0.40
2.5
0.82 J
Dry
<0.40
Dry
NS
1,2-Dichloroethane
49/1
1.0
0.40
0.4
<0.40
<0.40
<0.40
0.41 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.54 J
0.48 J
Dry
<0.40
Dry
NS
1,1-Dichloroethene(-ethylene)
49/1
1.0
0.40
350
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
cis-1,2-Dkhloroethene (ethylene)
µg/l
1.0
0.40
70
21
<0.40
0.84 J
16
<0.40
<0.40
0.49 J
<0.40
25
<0.40
2.9
4.4
<0.40
1
<0.40
<0.40
0.85 J
<0.40
0.61 J
5.2
2.4
Dry
<0.40
Dry
NS
trans-1,2-Dichloroethene (-ylene)
µg/l
1.0
0.40
100
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dichloropropane
49/1
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
cis-1,3-Dichloropropene (-propylene)
49/1
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
trans-1,3-Dichloropropene (-propylene)
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Ethylbenzene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
1.5
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
2-Hexanone
µg/l
10.0
2.0
40.0 (1)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Iodomethane
µg/l
5.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.45 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Dichloromethane (Methylene chloride
1
1.0
0.40
5.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
2-Butanone (Methyl ethyl ketone)
µg/l
10.0
2.0
4,000
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
2.3 J
<2.0
<2.0
<2.0
<2.0
5.3 J
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
4-Methyl-2-Peutanone
49/1
10.0
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Styrene
µg/l
1.0
0.41
70.0
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
Dry
<0.41
Dry
NS
1,1,1,2-Tetrachloroethane
49/1
1.0
0.40
1.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1, 1,2,2-Tetrachloroethane
µg/l
1.0
0.40
0.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Tetrachloroethene (-ethylene)
49/1
1.0
0.40
0.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Toluene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
1.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,1,1-Trichloroethane
49/1
1.0
0.40
200
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,1,2-Trichloroethane
µg/l
1.0
0.40
0.6 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Trichloroethene (ethylene)
µg/l
1.0
0.40
3.0
<0.40
<0.40
<0.40
0.64 J
<0.40
<0.40
<0.40
<0.40
0.77 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Tricldorofluoromethane
µg/l
1.0
0.40
2,000
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2,3-Trichloropropane
49/1
1.0
0.40
0.005
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Vinyl acetate
µg/l
5.0
1.2
88.0 (i)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1 2
<1.2
<1.2
<1.2
<L2
<1.2
<L2
<1.2
<1.2
<1.2
<1 2
<1.2
<1.2
Dry
<L2
Dry
NS
Vinyl chloride
µg/l
1.0
0.40
0.03
10
<0.40
0.79 J
3
0.51 J
<0.40
0.44 J
<0.40
<0.40
<0.40
0.53 J
1.6
<0.40
<0.40
0.54 J
<0.40
0.68 J
<0.40
<0.40
2.3
1.1
Dry
<0.40
Dry
NS
Total Xylenes
µg/l
1.0
0.40
500
<0.40
<0.40
1 0.82 J
<0.40
3.2
<0.40
<0.40
<0.40
0.57 J
<0.40
<0.40
<0.40
<0.40
<0.40
0.50 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,4-Dioxane
µg/l
3.0
1.0
3.0
36
NT
97
22
20
67
31
8.5
<LO
NT
NT
NT
NT
23
34
NT
45
93
34
52
46
Dry
NT
Dry
NS
4-Chloro-3-methyl phenol
µgA
4.0
0.50
NE
NT
<0.50
NT
NT
NT
<0.50
1.7 J
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NS
Diethylphthalate
µgA
4
0.5
6,000
NT
<0.50
NT
NT
NT
<0.50
2.5 J
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NS
Naphthalene
µg/l
0.8
0.2
6
NT
<0.20
NT
NT
NT
<0.20
0.78 J
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NS
Other App. lI Volatile Organic Compounds (VOC's)
Various
I Various
Various
I Various
NT
ND
NT
NT
NT
ND
ND
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NS
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances of MCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quantitation
7. DL = Detection Limit
8. NT = Not Tested
9. NS = Not Sampled
10. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
14175-03 Apx A - GW VOCs.xlsx Prepared By: RLB
Table 5 VOC Oct 2020 Checked By: TJD

Table A-4
Groundwater VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April 28-29, 2021
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-132
MW-15
MW-17-60
MW-17-137
MW-17-310
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-2445
MW-24-160
DPL-1
DPL-2
Acetone
µo
20
5.0
6,000
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
12 J
<5.0
<5.0
<5.0
<5.0
5.2 J
<5.0
<5.0
<5.0
Dry
<5.0
11.1
NS
Acrylormnle
49/1
20
0.80
NE
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
Dry
<0.80
<0.80
NS
Benzene
µg/1
1.0
0.40
1.0
<0.40
<0.40
1.6
0.86 J
5.6
0.86 J
1.3
<0.40
2.4
<0.40
1.1
1
<0.40
<0.40
<0.40
<0.40
0.53 J
<0.40
<0.40
2.8
<0.40
Dry
<0.40
<0.40
NS
Bromochloromethane
µg/l
1.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Bromodichloromethane
µg/l
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Broawform
µg/l
1.0
0.40
4.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Carbon Disulfide
µg/l
1.0
1 0.40
700
<0.40
1 <0.40
<0.40
<0.40
<0.40
<0.40
4.2
<0.40
<0.40
<0.40
<0.40
2.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.53 J
<0.40
Dry
<0.40
<0.40
NS
Bromomethane (Methylbromide)
49/1
2.0
0.40
10.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Carbon tetrachloride
µg/l
1.0
0.40
0.3
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Chlorobenzene (mono)
µg/l
1.0
0.40
50
<0.40
<0.40
4.4
6
28
8.7
7.5
0.96 J
13
<0.40
5
<0.40
<0.40
<0.40
<0.40
<0.40
4
4.2
0.78 J
32
1.8
Dry
<0.40
<0.40
NS
Chloroethane
µg/l
2.0
0.40
3,000
0.61 J
<0.40
3.2
2
<0.40
1.0 J
3.5
0.65 J
3.4
<0.40
<0.40
<0.40
<0.40
<0.40
0.43 J
<0.40
0.70 J
<0.40
0.87 J
<0.40
2.3
Dry
<0.40
<0.40
NS
Chloroform
µg/l
1.0
0.40
70
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Chloromethane (Methylchloride)
µg/l
1.0
0.50
3.0
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
<0.50
NS
Dibroawchloromethane
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,2-Dibromo-3chloropropane; DBCP
49/1
1.0
0.40
0.04
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,2-Dibromoethane; Ethylene dibromide
49/1
1.0
0.40
0.02
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Dibroaroaa;thane
µg/l
1.0
0.40
70.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,2-Dichlorobenzene
µg/l
1.0
0.40
20.0
<0.40
<0.40
0.83 J
0.73 J
4.4
<0.40
<0.40
<0.40
<0.40
<0.40
3.1
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
4
0.44 J
Dry
<0.40
<0.40
NS
1,4-Dichlorobenzene
µg/l
1.0
0.40
6.0
0.75 J
<0.40
7.2
9.5
25
4.8
2.6
0.43 J
5.8
<0.40
16
0.58 J
<0.40
0.53 J
0.68 J
<0.40
3.1
3.2
0.76 J
14
2.8
Dry
<0.40
<0.40
NS
trans-1,4-Dichloro-2-butene
49/1
2.0
0.50
NE
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
<0.50
NS
El-Dichloroethane
µg/l
1.0
0.40
6.0
<0.40
<0.40
1.3
7.2
<0.40
0.51 J
1.8
0.69 J
2.1
<0.40
<0.40
<0.40
<0.40
1.1
0.78 J
<0.40
0.98 J
0.47 J
<0.40
2.8
1.2
Dry
<0.40
<0.40
NS
1,2-Dichloroethane
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.43 J
0.42 J
Dry
<0.40
<0.40
NS
1,1-Dichloroethene(-ethylene)
49/1
1.0
0.40
350
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
cis-1,2-Dkhloroethene (ethylene)
µg/l
1.0
0.40
70
4.7
<0.40
0.65 J
16
<0.40
<0.40
1.4
<0.40
20
0.57 J
2.7
2.6
<0.40
2.5
0.61 J
<0.40
0.95 J
<0.40
0.93 J
5.8
2.9
Dry
<0.40
<0.40
NS
trans-1,2-Dichloroethene (-ylene)
49/1
1.0
0.40
100
<0.40
<0.40
<0.40
<0.40
0.44 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,2-Dichloropropane
µg/l
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
cis-1,3-Dichloropropene (-propylene)
49/1
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
trans-1,3-Dichloropropene (-propylene)
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Ethylbenzene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
6.8
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
2-Hexanone
µg/l
10.0
2.0
40.0 (1)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
<2.0
NS
lodomethane
49/1
5.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Dichloromethane (Methylene chloride
1
1.0
0.40
5.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
2-Butanone (Methyl ethyl ketone)
µg/l
10.0
2.0
4,000
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
3.4 J
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
<2.0
NS
4-Methyl-2-Pentanone
49/1
10.0
2.0
NE
<2.0
<2.0
<2.0
<2.0
4.9 J
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
<2.0
NS
Styrene
µg/l
1.0
0.41
70.0
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
Dry
<0.41
<0.41
NS
1,1,1,2-Tetrachloroethane
49/1
1.0
0.40
1.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1, 1,2,2-Tetrachloroethane
µg/l
1.0
0.40
0.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Tetrachloroethene (-ethylene)
49/1
1.0
0.40
0.7
0.68 BJ
<0.40
<0.40
1.2 B
<0.40
<0.40
0.87 BJ
<0.40
<0.40
0.63 BJ
0.66 BJ
0.53 BJ
<0.40
0.54 BJ
0.51 BJ
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Toluene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
2.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.66 J
<0.40
Dry
<0.40
<0.40
NS
1,1,1-Trichloroethane
49/1
1.0
0.40
200
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,1,2-Trichloroethane
µg/l
1.0
0.40
0.6 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Trlchloroethene (ethylene)
49/1
1.0
0.40
3.0
<0.40
<0.40
<0.40
0.82 J
<0.40
<0.40
<0.40
<0.40
0.60 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.51 J
<0.40
Dry
<0.40
<0.40
NS
Tricldorofluoromethane
µg/l
1.0
0.40
2,000
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
1,2,3-Trichlompropane
µg/l
1.0
0.40
0.005
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
NS
Vinyl acetate
µg/1
5.0
1.2
88.0 (I
<1. 2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<L2
<1.2
<1.2
<1.2
<L2
<1. 2
<L2
<1.2
<L2
<1.2
<L2
<1.2
<1.2
Dry
<L2
<1.2
NS
Vinyl chloride
µg/1
1.0
0.40
0.03
2.3
<0.40
0.723
3
1
<0.40
<0.40
<0.40
<(l
<0.40
0.61 J
0.91 J
<0.40
1.2
0.74 J
<0.40
0.83 J
<0.40
<0.40
2.2
1.2
Dry
<0.40
<0.40
NS
Total Xylenes
µg/l
1.0
1 0.40
500
<0.40
<0.40
0.89 J
<0.40
12
<0.40
<0.40
<0.40
0.54 J
<0.40
<0.40
<0.40
<0.40
<0.40
0.46 J
<0.40
<0.40
<0.40
<0.40
0.60 J
<0.40
Dry
<0.40
<0.40
NS
1,4-Dioxane
µg/1
3.0
1 1.0
3.0
22
NT
95
24
31
73
33
5.6
NT
NT
NT
NT
NT
26
35
NT
53
87
35
30
46
Dry
NT
<1.0
NS
4-Cldoro-3-methyl phenol
µg/1
NE
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
NT
NS
Diethylphthalate
µg/l
6,000
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
NT
NS
Naphthalene
µg/l
6
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
NT
NS
Other App. 11 Volatile Organic Compounds (VOC's)
Various
Various
Various
I Various
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
NT
NS
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of 1MACs
4. Shaded cells indicated exceedances of MCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quantitation
7. DL = Detection Limit
8. NT = Not Tested
9. NS = Not Sampled
10. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
11. "B"-flagged data (values detected in the lab blank) are laboratory errors and are presented on this spreadsheet.
14175-03 Apx A - GW VOCs.xlsx Prepared By: RLB
Table 5 VOC April 2021 Checked By: IAI

Table A-5
Groundwater VOCs
Old Buncombe County Landfill
Woodfln, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. October 25-28, 2021
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-132
MW-15
MW-17-60
MW-17-137
MW-17-310
MW-18-78
MW-19-75
MW-19-110
MW-21-21
MW-21-94
MW-2445
MW-24-160
DPL-1
DPL-2
Acetone
µo
20
5.0
6,000
<5.0
<5.0
<5.0
5.4 J
<5.0
<5.0
<5.0
<5.0
13 J
<5.0
<5.0
<5.0
11 J
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
NS
Acrylormnle
49/1
20
0.80
NE
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
<0.80
Dry
<0.80
Dry
NS
Benzene
µgIl
1.0
0.40
1.0
<0.40
<0.40
1.2
0.82 J
4.4
0.82 J
1.4
<0.40
2.8 J
<0.40
2.0
1.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.4
<0.40
Dry
<0.40
Dry
NS
Bromochloromethane
µg/l
1.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Bromodichloromethane
µg/l
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Bromoform
µg/l
1.0
0.40
4.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Carbon Disulfide
µg/l
1.0
1 0.40
700
<0.40
1 <0.40
<0.40
0.49 J
<0.40
<0.40
1.1
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.49 J
0.75 J
<0.40
0.88 J
0.49 J
Dry
0.46 J
Dry
NS
Bromomethane (Methylbromide)
49/1
2.0
0.40
10.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Carbon tetrachloride
µg/l
1.0
0.40
0.3
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Chlorobenzene (mono)
µg/l
1.0
0.40
50
1.0
<0.40
4.3
4.1
25
8.6
9.0
1.6
16
<0.40
8.6
<0.40
<0.40
<0.40
<0.40
<0.40
3.2
5.7
0.83 J
14
1.5
Dry
<0.40
Dry
NS
Chloroethane
µg/l
2.0
0.40
3,000
<0.40
<0.40
2.7
1.7 J
<0.40
0.69 J
3.3
<0.40
3.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.1
Dry
<0.40
Dry
NS
Chloroform
µg/l
1.0
0.40
70
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Chloromethane (Methylchloride)
µg/l
1.0
0.50
3.0
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
Dry
NS
Dibromochloromethane
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dibromo-3chloropropane; DBCP
49/1
1.0
0.40
0.04
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dibromoethane; Ethylene dibromide
49/1
1.0
0.40
0.02
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Dibromomethane
µg/l
1.0
0.40
70.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dichlorobenzene
µg/l
1.0
0.40
20.0
<0.40
<0.40
0.74 J
0.69 J
3.5
<0.40
<0.40
<0.40
<0.40
<0.40
4.8
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.7
<0.40
Dry
<0.40
Dry
NS
1,4-Dichlorobenzene
49/1
1.0
0.40
6.0
1.7
<0.40
7.5
7.9
20
4.6
3.4
0.58 J
6.8
<0.40
23
0.48 J
<0.40
<0.40
0.66 J
<0.40
2.2
4.8
0.78 J
12
2.4
Dry
<0.40
Dry
NS
trans-1,4-Dichloro-2-butene
µg/l
2.0
0.50
NE
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
<0.50
Dry
<0.50
Dry
NS
El-Dichloroethane
49/1
1.0
0.40
6.0
1.4
<0.40
1.5
7.1
<0.40
0.50 J
1.5
0.64 J
3.0
<0.40
<0.40
<0.40
<0.40
0.99 J
0.71 J
<0.40
0.81 J
0.59 J
<0.40
1.5
0.97 J
Dry
<0.40
Dry
NS
1,2-Dichloroethane
49/1
1.0
0.40
0.4
<0.40
<0.40
<0.40
0.48 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.56 J
0.43 J
Dry
<0.40
Dry
NS
1,1-Dichloroethene(-ethylene)
49/1
1.0
0.40
350
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
cis-1,2-Dichloroethene (-ethylene)
µg/l
1.0
0.40
70
12
<0.40
0.79 J
17
<0.40
<0.40
<0.40
<0.40
27
<0.40
3.1
1.8
<0.40
1.3
<0.40
<0.40
0.77 J
<0.40
0.78 J
4.0
2.6
Dry
<0.40
Dry
NS
trans-1,2-Dichloroethene (-ylene)
49/1
1.0
0.40
100
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2-Dichloropropane
µg/l
1.0
0.40
0.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
cis-1,3-Dichlo-mopene (-propylene)
49/1
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
trans-1,3-Dichlompropene (-propylene)
µg/l
1.0
0.40
0.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Ethylbenzene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
4.9
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
2-Hexanone
µgA
10.0
2.0
40.0 (1)
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
lodomethare
49/1
5.0
0.40
NE
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Dichloromethane (Methliene chloride)
RgA
1.0
0.40
5.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.48 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
2-Butanone (Methyl ethyl ketone)
µg/l
10.0
2.0
4,000
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
2.1 J
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
4-Methyl-2-Peutanone
49/1
10.0
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
<2.0
Dry
<2.0
Dry
NS
Styrene
µg/l
1.0
0.41
70.0
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
<0.41
Dry
<0.41
Dry
NS
1,1,1,2-Tetrachloroethane
49/1
1.0
0.40
1.0 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1, 1,2,2-Tetrachloroethane
µg/l
1.0
0.40
0.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Tetrachloroethene (-ethylene)
µg/l
1.0
0.40
0.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Toluene
µg/l
1.0
0.40
600
<0.40
<0.40
<0.40
<0.40
3.0
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.40 J
<0.40
Dry
<0.40
Dry
NS
1,1,1-Trichloroethane
49/1
1.0
0.40
200
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,1,2-Trichloroethane
µg/l
1.0
0.40
0.6 (i)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Trichloroethene (-ethylene)
49/1
1.0
0.40
3.0
<0.40
<0.40
<0.40
0.69 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Tricldorofluoromethane
µg/l
1.0
0.40
2,000
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,2,3-Trichlompropane
49/1
1.0
0.40
0.005
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
Vinyl acetate
µg/l
5.0
1.2
88.0 (i)
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
<1.2
Dry
<1.2
Dry
NS
Vinyl chloride
49/1
1.0
0.40
0.03
9.4
<0.40
0.54 J
2.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.69 J
0.57 J
<0.40
0.47 J
<0.40
<0.40
<0.40
<0.40
<0.40
1.7
0.54 J
Dry
<0.40
Dry
NS
Total Xylenes
µg/l
1.0
0.40
500
<0.40
<0.40
0.84 J
<0.40
8.9
<0.40
<0.40
<0.40
1.6
<0.40
<0.40
<0.40
<0.40
10.40
0.71 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
NS
1,4-Dioxane
µg/l
3.0
1.0
3.0
34
NT
90
18
48
84
38
9.1
NT
NT
NT
NT
NT
28
37
NT
52
85
34
60
47
Dry
NT
Dry
NS
4-Chloro-3-methyl phenol
µP,/1
4.0
0.50
NE
NT
<0.50
NT
NT
NT
<0.50
<0.50
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Diethylphthalate
µP,/1
4
0.5
6,000
NT
<0.50
NT
NT
NT
<0.50
2.6 JQ
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Naphthalene
µg/l
0.8
0.2
6
NT
<0.20
NT
NT
NT
<0.20
0.84 Q
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Other App. 11 Volatile Organic Compounds (VOC's)
Various
Various
I Various
Various
NT
ND
NT
NT
NT
ND
ND
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
NT
Dry
NT
Dry
NS
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of 1MACs
4. Shaded cells indicated exceedances of MCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quantitation
7. DL = Detection Limit
8. NT = Not Tested
9. NS = Not Sampled
10. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
11. "Q"-flagged data (surrogate failures) are laboratory errors and are presented on this spreadsheet.
14175-03 Apx A - GW VOCs.xlsx Prepared By: RLB
Table 5 VOC Oct 2021 Checked By: TAO/AWA

APPENDIX B
SURFACE WATER VOC SUMMARY TABLES

Table B-1
Surface Water VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. November 11-15,
2019 and Resampled on March 2, 2020.
TEST
UNITS
MRL
MDL
NC2B
SW-1
SW-2
SW-2A
SW-3
SW-4
Acetone
µg/1
25
25.0
2,000
<25.0
<25.0
<25.0
<25.0
<25.0
Acrylonitrile
µg/1
10
10.00
420.0
<10.0
<10.0
<10.0
<10.0
<10.0
Benzene
µg/1
1.0
1.00
51.0
<1.0
<1.0
<1.0
<1.0
<1.0
Bromochloromethane
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Bromodichloromethane
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Bromoform
µg/1
1.0
1.00
120
<1.0
<1.0
<1.0
<1.0
<1.0
Carbon Disulfide
µg/1
2.0
2.00
100
<2.0
<2.0
<2.0
<2.0
<2.0
Bromomethane (Methylbromide)
µg/1
2.0
2.00
0.04
<2.0
<2.0
<2.0
<2.0
<2.0
Carbon tetrachloride
µg/1
1.0
1.00
1.6
<1.0
<1.0
<1.0
<1.0
<1.0
Chlorobenzene (mono)
µg/1
1.0
1.00
800
<1.0
<1.0
<1.0
<1.0
<1.0
Chloroethane
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Chloroform
µg/1
5.0
5.00
2,000
<5.0
<5.0
<5.0
<5.0
<5.0
Chloromethane (Methylchloride)
µg/1
1.0
1.00
96.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dibromochloromethane
µg/1
1.0
1.00
21
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dibromo-3-chloropropane; DBCP
µg/1
5.0
5.00
0.13
<5.0
<5.0
<5.0
<5.0
<5.0
1,2-Dibromoethane; Ethylene dibromide
µg/1
1.0
1.00
0.1
<1.0
<1.0
<1.0
<1.0
<1.0
Dibromomethane
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichlorobenzene
µg/1
1.0
1.00
3,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,4-Dichlorobenzene
µg/1
1.0
1.00
900
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,4-Dichloro-2butene
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
µg/1
1.0
1.00
100
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
µg/1
1.0
1.00
650
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethene (-ethylene)
µg/1
1.0
1.00
20,000
<1.0
<1.0
<1.0
<1.0
<1.0
cis-1,2-Dichloroethene (-ethylene)
µg/1
1.0
1.00
720
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,2-Dichloroethene (-ylene)
µg/1
1.0
1.00
4,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloropropane
µg/1
1.0
1.00
31.0
<1.0
<1.0
<1.0
<1.0
<1.0
cis-1,3-Dichloropropene (-propylene)
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,3-Dichloropropene (-propylene)
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Ethylbenzene
µg/1
1.0
1.00
97
<1.0
<1.0
<1.0
<1.0
<1.0
2-Hexanone
µg/1
5
5.0
NE
<5.0
<5.0
<5.0
<5.0
<5.0
Iodomethane
µg/1
20.0
20.00
NE
<20.0
<20.0
<20.0
<20.0
<20.0
Dichloromethane (Methylene chloride)
µg/1
5.0
5.00
1,000
<5.0
<5.0
<5.0
<5.0
<5.0
2-Butanone (Methyl ethyl ketone)
µg/1
5
5.0
26,000
<5.0
<5.0
<5.0
<5.0
<5.0
4-Methyl-2-Pentanone
µg/1
5
5.0
26,000
<5.0
<5.0
<5.0
<5.0
<5.0
Styrene
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1, 1, 1,2-Tetrachloroethane
µg/1
1.0
1.00
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,2,2-Tetrachloroethane
µg/1
1.0
1.00
4.0
<1.0
<1.0
<1.0
<1.0
<1.0
Tetrachloroethene (-ethylene)
µg/1
1.0
1.00
3.3
<1.0
<1.0
<1.0
<1.0
<1.0
Toluene
µg/1
1.0
1.00
11.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,1-Trichloroethane
µg/1
1.0
1.00
200,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,2-Trichloroethane
µg/1
1.0
1.00
8.9
<1.0
<1.0
<1.0
<1.0
<1.0
Trichloroethene (-ethylene)
µg/1
1.0
1.00
30.0
<1.0
<1.0
<1.0
<1.0
<1.0
Trichlorofluoromethane
µg/1
1.0
1.00
67,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,2,3-Trichloropropane
µg/1
1.0
1.00
0.001
<1.0
<1.0
<1.0
<1.0
<1.0
Vinyl acetate
µg/1
2.0
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
Vinyl chloride
µg/1
1.0
1.00
2.4
<1.0
<1.0
<1.0
<1.0
<1.0
Total Xylenes
µg/1
2.0
2.00
670
<2.0
<2.0
<2.0
<2.0
<2.0
14-dioxane
2.0
2.0
80.0
<2.0
<2.0
10.3
34
49.9
Notes:
NC213 = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 213.
per NC DWR Surface Water Quality Standards, Criteria, & In -Stream Target Values (Workbook Dated 6-10-2019)
NE = Not Established; North Carolina has not established a MCL
NT = Not Tested
MRL = Method Reporting Limit
MDL = Minimum Detection Limit
"J"-flagged data (i.e., values estimated between the MDL and the MRL) are presented on this spreadsheet.
Shaded cells indicated exceedances of NC2B Surface Water Standards
Red text indicates detections from resampling event completed between March 2-3, 2020.
14175-03 Apx B - SW VOCs.xlsx Prepared By: RLB
Table B-1 SW VOC (11-13-19) Checked By: TJD

Table B-2
Surface Water VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April 27, 2020.
TEST
UNITS
MRL
MDL
NC2B
SW-1
SW-2
SW-2A
SW-3
SW-4
Acetone
µg/1
25
0.4
2,000
<25.0
<25.0
<25.0
<25.0
5.7 J
Acrylonitrile
µg/1
10
0.40
420.0
<10.0
<10.0
<10.0
<10.0
<10.0
Benzene
µg/1
1.0
0.40
51.0
<1.0
<1.0
<1.0
<1.0
<1.0
Bromochloromethane
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Bromodichloromethane
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Bromoform
µg/1
1.0
0.50
120
<1.0
<1.0
<1.0
<1.0
<1.0
Carbon Disulfide
µg/1
2.0
0.80
100
<2.0
<2.0
<2.0
<2.0
<2.0
Bromomethane (Methylbromide)
µg/1
2.0
0.40
0.04
<2.0
<2.0
<2.0
<2.0
<2.0
Carbon tetrachloride
µg/1
1.0
0.40
1.6
<1.0
<1.0
<1.0
<1.0
<1.0
Chlorobenzene (mono)
µg/1
1.0
0.40
800
<1.0
<1.0
<1.0
<1.0
<1.0
Chloroethane
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Chloroform
µg/1
5.0
0.40
2,000
<5.0
<5.0
<5.0
<5.0
<5.0
Chloromethane (Methylchloride)
µg/1
1.0
0.50
96.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dibromochloromethane
µg/1
1.0
0.40
21
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dibromo-3-chloropropane; DBCP
µg/1
5.0
0.40
0.13
<5.0
<5.0
<5.0
<5.0
<5.0
1,2-Dibromoethane; Ethylene dibromide
µg/1
1.0
0.40
0.1
<1.0
<1.0
<1.0
<1.0
<1.0
Dibromomethane
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichlorobenzene
µg/1
1.0
0.40
3,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,4-Dichlorobenzene
µg/1
1.0
0.40
900
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,4-Dichloro-2butene
µg/1
1.0
0.50
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
µg/1
1.0
0.40
100
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
µg/1
1.0
0.40
650
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethene (-ethylene)
µg/1
1.0
0.40
20,000
<1.0
<1.0
<1.0
<1.0
<1.0
cis-1,2-Dichloroethene (-ethylene)
µg/1
1.0
0.40
720
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,2-Dichloroethene (-ylene)
µg/1
1.0
0.40
4,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloropropane
µg/1
1.0
0.40
31.0
<1.0
<1.0
<1.0
<1.0
<1.0
cis-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
trans-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
Ethylbenzene
µg/1
1.0
0.40
97
<1.0
<1.0
<1.0
<1.0
<1.0
2-Hexanone
µg/1
5
2.0
NE
<5.0
<5.0
<5.0
<5.0
<5.0
Iodomethane
µg/1
20.0
0.40
NE
<20.0
<20.0
<20.0
<20.0
<20.0
Dichloromethane (Methylene chloride)
µg/1
5.0
0.40
1,000
<5.0
<5.0
<5.0
<5.0
<5.0
2-Butanone (Methyl ethyl ketone)
µg/1
5
2.0
26,000
<5.0
<5.0
<5.0
<5.0
<5.0
4-Methyl-2-Pentanone
µg/1
5
2.0
26,000
<5.0
<5.0
<5.0
<5.0
<5.0
Styrene
µg/1
1.0
0.41
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,1,2-Tetrachloroethane
µg/1
1.0
0.40
NE
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,2,2-Tetrachloroethane
µg/1
1.0
0.40
4.0
<1.0
<1.0
<1.0
<1.0
<1.0
Tetrachloroethene (-ethylene)
µg/1
1.0
0.40
3.3
<1.0
<1.0
<1.0
<1.0
<1.0
Toluene
µg/1
1.0
0.40
11.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,1-Trichloroethane
µg/1
1.0
0.40
200,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,1,2-Trichloroethane
µg/1
1.0
0.40
8.9
<1.0
<1.0
<1.0
<1.0
<1.0
Trichloroethene (-ethylene)
µg/1
1.0
0.40
30.0
<1.0
<1.0
<1.0
<1.0
<1.0
Trichlorofluoromethane
µg/1
1.0
0.40
67,000
<1.0
<1.0
<1.0
<1.0
<1.0
1,2,3-Trichloropropane
µg/1
1.0
0.40
0.001
<1.0
<1.0
<1.0
<1.0
<1.0
Vinyl acetate
µg/1
2.0
1.2
NE
<2.0
<2.0
<2.0
<2.0
<2.0
Vinyl chloride
µg/1
1.0
0.40
2.4
<1.0
<1.0
<1.0
<1.0
<1.0
Total Xylenes
µg/1
2.0
0.40
670
<2.0
<2.0
<2.0
<2.0
<2.0
1,4-dioxane
µg/1
2.0
1.0
80.0
<2.0
<2.0
7.9
36
61
Notes:
NC213 = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 213.
per NC DWR Surface Water Quality Standards, Criteria, & In -Stream Target Values (Workbook Dated 6-10-2019)
NE = Not Established; North Carolina has not established a MCL
NT = Not Tested
MRL = Method Reporting Limit
MDL = Minimum Detection Limit
"J"-flagged data (i.e., values estimated between the MDL and the MRL) are presented on this spreadsheet.
Shaded cells indicated exceedances of NC2B Surface Water Standards
14175-03 Apx B - SW VOCs.xlsx Prepared By: RLB
Table B-2 SW VOC (4-27-20) Checked By: TJD

Table B-3
Surface Water VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical
Services, LLC. October 26, 2020
TEST
UNITS
MRL
MDL
NC2B
SW-1
SW-2
SW-2A
SW-3
SW-4
Acetone
µg/1
20
5.0
2,000
<5.0
<5.0
<5.0
5.3 J
<5.0
Acrylonitrile
µg/1
20
0.80
420.0
<0.8
<0.8
<0.8
<0.8
<0.8
Benzene
µg/1
1.0
0.40
51.0
<0.4
<0.4
<0.4
<0.4
<0.4
Bromochloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromodichloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromoform
µg/1
1.0
0.40
120
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon Disulfide
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
Bromomethane (Methylbromide)
µg/1
2.0
0.40
0.04
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon tetrachloride
µg/1
1.0
0.40
1.6
<0.4
<0.4
<0.4
<0.4
<0.4
Chlorobenzene (mono)
µg/1
1.0
0.40
800
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroethane
µg/1
2.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroform
µg/1
1.0
0.40
2,000
<0.4
<0.4
<0.4
<0.4
<0.4
Chloromethane (Methylchloride)
µg/1
1.0
0.50
96.0
<0.5
<0.5
<0.5
<0.5
<0.5
Dibromochloromethane
µg/1
1.0
0.40
21
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromo-3-chloropropane; DBCP
µg/1
1.0
0.40
0.13
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromoethane; Ethylene dibromide
µg/1
1.0
0.40
0.1
<0.4
<0.4
<0.4
<0.4
<0.4
Dibromomethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichlorobenzene
µg/1
1.0
0.40
3,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-Dichlorobenzene
µg/1
1.0
0.40
900
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,4-Dichloro-2butene
µg/1
2.0
0.50
NE
<0.5
<0.5
<0.5
<0.5
<0.5
1,1-Dichloroethane
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloroethane
µg/1
1.0
0.40
650
<0.4
<0.4
<0.4
<0.4
<0.4
1,1-Dichloroethene (-ethylene)
µg/1
1.0
0.40
20,000
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,2-Dichloroethene (-ethylene)
µg/1
1.0
0.40
720
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,2-Dichloroethene (-ylene)
µg/1
1.0
0.40
4,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloropropane
µg/1
1.0
0.40
31.0
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Ethylbenzene
µg/1
1.0
0.40
97
<0.4
<0.4
<0.4
<0.4
<0.4
2-Hexanone
µg/1
10
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
Iodomethane
µg/1
5.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Dichloromethane (Methylene chloride)
µg/1
1.0
0.40
1,000
<0.4
<0.4
<0.4
<0.4
<0.4
2-Butanone (Methyl ethyl ketone)
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
4-Methyl-2-Pentanone
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
Styrene
µg/1
1.0
0.41
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1,2-Tetrachloroethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2,2-Tetrachloroethane
µg/1
1.0
0.40
4.0
<0.4
<0.4
<0.4
<0.4
<0.4
Tetrachloroethene (-ethylene)
µg/1
1.0
0.40
3.3
<0.4
<0.4
<0.4
<0.4
<0.4
Toluene
µg/1
1.0
0.40
11.0
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1-Trichloroethane
µg/1
1.0
0.40
200,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2-Trichloroethane
µg/1
1.0
0.40
8.9
<0.4
<0.4
<0.4
<0.4
<0.4
Trichloroethene (-ethylene)
µg/1
1.0
0.40
30.0
<0.4
<0.4
<0.4
<0.4
<0.4
Trichlorofluoromethane
µg/1
1.0
0.40
67,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2,3-Trichloropropane
µg/1
1.0
0.40
0.001
<0.4
<0.4
<0.4
<0.4
<0.4
Vinyl acetate
µg/1
5.0
1.2
NE
<1.2
<1.2
<1.2
<1.2
<1.2
Vinyl chloride
µg/1
1.0
0.40
2.4
<0.4
<0.4
<0.4
<0.4
<0.4
Total Xylenes
µg/1
1.0
0.40
670
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-dioxane
µg/1
3.0
1.0
80.0
NT
NT
12
<1.0
<1.0
Notes:
NC213 = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 213.
per NC DWR Surface Water Quality Standards, Criteria, & In -Stream Target Values (Workbook Dated 6-10-2019)
NE = Not Established; North Carolina has not established a MCL
NT = Not Tested
MRL = Method Reporting Limit
MDL = Minimum Detection Limit
"J"-flagged data (i.e., values estimated between the MDL and the MRL) are presented on this spreadsheet.
Shaded cells indicated exceedances of NC2B Surface Water Standards
14175-03 Apx B - SW VOCs.xlsx Prepared By: RLB
Table B-3 SW VOC (10-26-20) Checked By: TJD

Table B-4
Surface Water VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April
28, 2021
TEST
UNITS
MRL
MDL
NC2B
SW-1
SW-2
SW-2A
SW-3
SW-4
Acetone
µg/1
20
5.0
2,000
<5.0
<5.0
<5.0
<5.0
<5.0
Acrylonitrile
µg/1
20
0.80
420.0
<0.8
<0.8
<0.8
<0.8
<0.8
Benzene
µg/1
1.0
0.40
51.0
<0.4
<0.4
<0.4
<0.4
<0.4
Bromochloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromodichloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromoform
µg/1
1.0
0.40
120
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon Disulfide
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
Bromomethane (Methylbromide)
µg/1
2.0
0.40
0.04
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon tetrachloride
µg/1
1.0
0.40
1.6
<0.4
<0.4
<0.4
<0.4
<0.4
Chlorobenzene (mono)
µg/1
1.0
0.40
800
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroethane
µg/1
2.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroform
µg/1
1.0
0.40
2,000
<0.4
<0.4
<0.4
<0.4
<0.4
Chloromethane (Methylchloride)
µg/1
1.0
0.50
96.0
<0.5
<0.5
<0.5
<0.5
<0.5
Dibromochloromethane
µg/1
1.0
0.40
21
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromo-3-chloropropane; DBCP
µg/1
1.0
0.40
0.13
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromoethane; Ethylene dibromide
µg/1
1.0
0.40
0.1
<0.4
<0.4
<0.4
<0.4
<0.4
Dibromomethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichlorobenzene
µg/1
1.0
0.40
3,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-Dichlorobenzene
µg/1
1.0
0.40
900
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,4-Dichloro-2butene
µg/1
2.0
0.50
NE
<0.5
<0.5
<0.5
<0.5
<0.5
1,1-Dichloroethane
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloroethane
µg/1
1.0
0.40
650
<0.4
<0.4
<0.4
<0.4
<0.4
1,1-Dichloroethene (-ethylene)
µg/1
1.0
0.40
20,000
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,2-Dichloroethene (-ethylene)
µg/1
1.0
0.40
720
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,2-Dichloroethene (-ylene)
µg/1
1.0
0.40
4,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloropropane
µg/1
1.0
0.40
31.0
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Ethylbenzene
µg/1
1.0
0.40
97
<0.4
<0.4
<0.4
<0.4
<0.4
2-Hexanone
µg/1
10
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
Iodomethane
µg/1
5.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Dichloromethane (Methylene chloride)
µg/1
1.0
0.40
1,000
<0.4
<0.4
<0.4
<0.4
<0.4
2-Butanone (Methyl ethyl ketone)
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
4-Methyl-2-Pentanone
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
Styrene
µg/1
1.0
0.41
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1,2-Tetrachloroethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2,2-Tetrachloroethane
µg/1
1.0
0.40
4.0
<0.4
<0.4
<0.4
<0.4
<0.4
Tetrachloroethene (-ethylene)
µg/1
1.0
0.40
3.3
<0.4
<0.4
<0.4
<0.4
<0.4
Toluene
µg/1
1.0
0.40
11.0
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1-Trichloroethane
µg/1
1.0
0.40
200,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2-Trichloroethane
µg/1
1.0
0.40
8.9
<0.4
<0.4
<0.4
<0.4
<0.4
Trichloroethene (-ethylene)
µg/1
1.0
0.40
30.0
<0.4
<0.4
<0.4
<0.4
<0.4
Trichlorofluoromethane
µg/1
1.0
0.40
67,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2,3-Trichloropropane
µg/1
1.0
0.40
0.001
<0.4
<0.4
<0.4
<0.4
<0.4
Vinyl acetate
µg/1
5.0
1.2
NE
<1.2
<1.2
<1.2
<1.2
<1.2
Vinyl chloride
µg/1
1.0
0.40
2.4
<0.4
<0.4
<0.4
<0.4
<0.4
Total Xylenes
µg/1
1.0
0.40
670
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-dioxane
µg/1
3.0
1.0
80
NT
NT
12
34
68
Notes:
NC213 = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 213.
per NC DWR Surface Water Quality Standards, Criteria, & In -Stream Target Values (Workbook Dated 6-10-2019)
NE = Not Established; North Carolina has not established a MCL
NT = Not Tested
MRL = Method Reporting Limit
MDL = Minimum Detection Limit
"J"-flagged data (i.e., values estimated between the MDL and the MRL) are presented on this spreadsheet.
Shaded cells indicated exceedances of NC2B Surface Water Standards
14175-03 Apx B - SW VOCs.xlsx Prepared By: RLB
Table B-4 SW VOC (4-28-21) Checked By: IAI

Table B-5
Surface Water VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. October
25-26, 2021
TEST
UNITS
MRL
MDL
NC2B
SW-1
SW-2
SW-2 A
SW-3
SW-4
Acetone
µg/1
20
5.0
2,000
<5.0
<5.0
<5.0
<5.0
<5.0
Acrylonitrile
µg/1
20
0.80
420.0
<0.8
<0.8
<0.8
<0.8
<0.8
Benzene
µg/1
1.0
0.40
51.0
<0.4
<0.4
<0.4
<0.4
<0.4
Bromochloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromodichloromethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Bromoform
µg/1
1.0
0.40
120
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon Disulfide
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
Bromomethane (Methylbromide)
µg/1
2.0
0.40
0.04
<0.4
<0.4
<0.4
<0.4
<0.4
Carbon tetrachloride
µg/1
1.0
0.40
1.6
<0.4
<0.4
<0.4
<0.4
<0.4
Chlorobenzene (mono)
µg/1
1.0
0.40
800
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroethane
µg/1
2.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Chloroform
µg/1
1.0
0.40
2,000
<0.4
<0.4
<0.4
<0.4
<0.4
Chloromethane (Methylchloride)
µg/1
1.0
0.50
96.0
<0.5
<0.5
<0.5
<0.5
<0.5
Dibromochloromethane
µg/1
1.0
0.40
21
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromo-3-chloropropane; DBCP
µg/1
1.0
0.40
0.13
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dibromoethane; Ethylene dibromide
µg/1
1.0
0.40
0.1
<0.4
<0.4
<0.4
<0.4
<0.4
Dibromomethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichlorobenzene
µg/1
1.0
0.40
3,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-Dichlorobenzene
µg/1
1.0
0.40
900
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,4-Dichloro-2butene
µg/1
2.0
0.50
NE
<0.5
<0.5
<0.5
<0.5
<0.5
1,1-Dichloroethane
µg/1
1.0
0.40
100
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloroethane
µg/1
1.0
0.40
650
<0.4
<0.4
<0.4
<0.4
<0.4
1,1-Dichloroethene (-ethylene)
µg/1
1.0
0.40
20,000
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,2-Dichloroethene (-ethylene)
µg/1
1.0
0.40
720
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,2-Dichloroethene (-ylene)
µg/1
1.0
0.40
4,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2-Dichloropropane
µg/1
1.0
0.40
31.0
<0.4
<0.4
<0.4
<0.4
<0.4
cis-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
trans-1,3-Dichloropropene (-propylene)
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Ethylbenzene
µg/1
1.0
0.40
97
<0.4
<0.4
<0.4
<0.4
<0.4
2-Hexanone
µg/1
10
2.0
NE
<2.0
<2.0
<2.0
<2.0
<2.0
Iodomethane
µg/1
5.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
Dichloromethane (Methylene chloride)
µg/1
1.0
0.40
1,000
<0.4
<0.4
<0.4
<0.4
<0.4
2-Butanone (Methyl ethyl ketone)
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
4-Methyl-2-Pentanone
µg/1
10
2.0
26,000
<2.0
<2.0
<2.0
<2.0
<2.0
Styrene
µg/1
1.0
0.41
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1,2-Tetrachloroethane
µg/1
1.0
0.40
NE
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2,2-Tetrachloroethane
µg/1
1.0
0.40
4.0
<0.4
<0.4
<0.4
<0.4
<0.4
Tetrachloroethene (-ethylene)
µg/1
1.0
0.40
3.3
<0.4
<0.4
<0.4
<0.4
<0.4
Toluene
µg/1
1.0
0.40
11.0
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,1-Trichloroethane
µg/1
1.0
0.40
200,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,1,2-Trichloroethane
µg/1
1.0
0.40
8.9
<0.4
<0.4
<0.4
<0.4
<0.4
Trichloroethene (-ethylene)
µg/1
1.0
0.40
30.0
<0.4
<0.4
<0.4
<0.4
<0.4
Trichlorofluoromethane
µg/1
1.0
0.40
67,000
<0.4
<0.4
<0.4
<0.4
<0.4
1,2,3-Trichloropropane
µg/1
1.0
0.40
0.001
<0.4
<0.4
<0.4
<0.4
<0.4
Vinyl acetate
µg/1
5.0
1.2
NE
<1.2
<1.2
<1.2
<1.2
<1.2
Vinyl chloride
µg/1
1.0
0.40
2.4
<0.4
<0.4
<0.4
<0.4
<0.4
Total Xylenes
µg/1
1.0
0.40
670
<0.4
<0.4
<0.4
<0.4
<0.4
1,4-dioxane
µg/1
3.0
1.0
80
NT
NT
13
<1.0
<1.0
Notes:
NC213 = North Carolina Surface Water Standards for Class B freshwater under Title 15A Subchapter 213.
per NC DWR Surface Water Quality Standards, Criteria, & In -Stream Target Values (Workbook Dated 6-10-2019)
NE = Not Established; North Carolina has not established a MCL
NT = Not Tested
MRL = Method Reporting Limit
MDL = Minimum Detection Limit
"J"-flagged data (i.e., values estimated between the MDL and the MRL) are presented on this spreadsheet.
Shaded cells indicated exceedances of NC2B Surface Water Standards
14175-03 Apx B - SW VOCs.xlsx Prepared By: RLB
Table B-5 SW VOC (10-26-21) Checked By: TAO/AWA

APPENDIX C
GEOCHEMICAL PARAMETERS FOR MNA
AND FIELD PARAMETER
SUMMARY TABLES

Table C-1
Groundwater Geochemical Parameters for MNA
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. November 11-15, 2019 and Resampled on March 2-3, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7
MW-12-25
MW-13-35
MW-13-
132
MW-15
NM-17-60
MW-17-
137
MW-17-
310
NM-18-78
NM-19-75
NM-19-
110
MW-21-21
MW-21-94
MW-24-45
MW-24-
160
DPL-1
pH
S.U.
>6.5; <8.5
6.4
6.3
6.4
6.3
6.3
6.5
6.2
6.2
5.6
6.4
5.7
7.2
12.6
6.7
7.3
8.6
6.3
6.3
7.6
6.4
6.7
Dry
7.3
Dry
Specific Conductance
mmhos/cm
NE
670
127.2
1202
1000
647
1231
1322
484.4
179.5
553.3
338
366.4
7695
599.7
831
141.8
1002
1194
420.4
1406
893
Dry
215.9
Dry
Temperature
°C
NE
13.5
15.5
15.6
12.7
16.4
12.6
10.6
9.5
13.3
11.3
9.5
9.9
12.4
13.5
13.6
13.6
15.9
15.4
15.1
14.5
11.5
Dry
12
Dry
Turbidity
NTU
NE
21.1
4.5
8.9
1.0
1.0
8.0
1.0
1.1
6.5
0.5
4.1
1.5
1.8
1.1
1.4
9.9
0.2
1.4
2.9
7.7
0.6
Dry
9.7
Dry
Dissolved Oxygen (DO)
m9/1-
NE
0.4
4.7
0.4
0.3
0.9
0.6
0.5
0.8
0.3
3.1
0.5
1.2
9.9
1.1
0.6
0.4
0.4
0.2
0.5
0.4
1
Dry
1.1
Dry
Redox
my
NE
58.7
118.3
-46.2
-20.4
-61.1
-21.2
-27
72.3
70.4
188
206.5
-33.3
-66.5
56.2
-172.7
17.5
-46
-13.1
-7.5
-36.5
-42.2
Dry
27.9
Dry
Dissolved Hydrogen (DH)
nM
1.0
0.49
NE
NT
50
NT
37
NT
NT
59
NT
NT
NT
NT
40
NT
NT
NT
NT
32
38
22
190
30
Dry
100
Dry
Lactic Acid
mg/I
0.20
0.043
NE
NT
<0.20
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
0.056 J
<0.20
<0.20
Dry
<0.20
Dry
Acetic Acid
mg/I
0.10
0.028
5.0 (i)
NT
<0.10
NT
0.046 J
NT
NT
0.04 J
NT
NT
NT
NT
0.17
NT
NT
NT
NT
<0.10
0.037 J
0.032 J
0.046 J
0.094 J
Dry
0.039 J
Dry
Propionic Acid
mg/I
0.10
0.0040
NE
NT
<0.10
NT
0.0044 J
NT
NT
<0.10
NT
NT
NT
NT
0.045 J
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
0.0032 J
Dry
<0.10
Dry
Formic Acid
mg/I
0.50
0.086
NE
NT
0.15 J
NT
0.22 J
NT
NT
0.16 J
NT
NT
NT
NT
0.18 J
NT
NT
NT
NT
0.14 J
0.16 J
0.44 J
0.70
1.7
Dry
0.25 J
Dry
Butyric Acid
mg/I
0.10
0.011
NE
NT
<0.10
NT
0.02 J
NT
NT
<0.10
NT
NT
NT
NT
0.063 J
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Pyruvic Acid
mg/I
0.10
0.0050
NE
NT
<0.10
NT
0.01 J
NT
NT
0.021 J
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
0.013 J
0.015 J
<0.10
0.03 J
0.024 J
Dry
<0.10
Dry
i-Pentanoic Acid
mg/I
0.10
0.0060
NE
NT
<0.10
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Pentanc is Acid
mg/I
0.10
0.0070
NE
NT
<0.10
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
i-Hexanoic Acid
mg/I
0.20
0.029
NE
NT
<0.20
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
<0.20
<0.20
<0.20
Dry
<0.20
Dry
Hexanoic Acid
mg/I
0.20
0.010
NE
NT
<0.20
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
<0.20
<0.20
<0.20
Dry
<0.20
Dry
Methane
ug/I
0.50
0.046
NE
NT
0.078
NT
990
NT
NT
2,900
NT
NT
NT
NT
670
NT
NT
NT
NT
1300
240
200
960
1900
Dry
0.46 J
Dry
Ethane
ug/I
0.10
0.0050
NE
NT
<0.1
NT
0.14
NT
NT
0.4
NT
NT
NT
NT
0.14
NT
NT
NT
NT
0.42
0.19
0.056 J
0.081 J
0.35
Dry
0.0084 J
Dry
Ethene
ug/I
0.10
0.0040
NE
NT
0.0067
NT
0.047 J
NT
NT
0.14
NT
NT
NT
NT
0.99
NT
NT
NT
NT
0.032
0.045 J
0.058 J
0.2
0.085 J
Dry
0.0079 J
Dry
Carbon Dioxide (CO,)
mg/I
5.0
0.45
NE
NT
60
NT
470
NT
NT
450
NT
NT
NT
NT
46
NT
NT
NT
NT
260
340
7.0
370
130
Dry
4.4 J
Dry
Alkalinity
mg/I
5.0
5.0
NE
NT
59.8
NT
397
NT
NT
494
NT
NT
NT
NT
153
NT
NT
NT
NT
284
386
155
639
303
Dry
55.6
Dry
Sulfide
mg/I
0.1
0.1
NE
NT
<0.10
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Biological Oxygen Demand (BOD)
mg/I
2.0
2.0
NE
NT
<2.0
NT
3.0
NT
NT
3.36
NT
NT
NT
NT
<2.0
NT
NT
NT
NT
4.92
<2.0
<2.0
<2.0
2.45
Dry
<2.0
Dry
Sulfate
mg/I
1.0
1.0
250
NT
3.11
NT
27.9
NT
NT
2.03
NT
NT
NT
NT
9.4
NT
NT
NT
NT
2.3
15.6
14.3
26.3
2.88
Dry
23.1
Dry
Nitrate
mg/I
0.04
0.04
10
NT
<0.04
NT
<0.04
NT
NT
<0.04
NT
NT
NT
NT
<0.04
NT
NT
NT
NT
0.049
<0.04
<0.04
<0.04
<0.04
Dry
0.043
Dry
Chloride
mg/I
10
10
250
NT
2.19
NT
63.4
NT
NT
147
NT
NT
NT
NT
5.55
NT
NT
NT
NT
138
160
39.6
95
109
Dry
7.04
Dry
Chemical Oxygen Demand (COD)
mg/I
25
25
NE
NT
<25
NT
36.2
NT
NT
41.1
NT
NT
NT
NT
<25
NT
NT
NT
NT
44.4
39.8
<25
55.7
26.4
Dry
<25
Dry
Total Organic Carbon (TOC)
mg/I
1.0
1.0
NE
NT
<1.0
NT
9.21
NT
NT
15.1
NT
NT
NT
NT
1.08
NT
NT
NT
NT
7.72
11.9
1.97
16
9.39
Dry
1.11
Dry
Iron H (field measured)
I mg/I
1 0.5
1 0.5
1 NE
I NT
NT
1 2.5
NT
NT
1 4.0
1 NT
I NT
I NT
I NT
1 3.5
1 NT
I NT
I NT
NT
1 3.5
2.5
1 4.5
1 4.5
1 Dry
Dry
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENP, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances ofMCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quanititation
7. DL = Detection Limit
8. NT = Not Tested
9. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
10. ND = Not Detected
11. Red text indicates detections from resampling event completed between March 2-3, 2020.
14175-03 Apx C - GW Geochem and Field Parameters.xlsx
Table C-1 MNA Nov 2019
Prepared By: TAO
Checked By: IAI

Table C-2
Groundwater Geochemical Parameters for MNA
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April 27, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
NM-4A
MW-5
AM-6
MW-6-192
NM-7
NM-12-25
NM-13-35
MW-13-
132
NM-15
NM-17-60
MW-17-
137
MW-17-
310
NM-18-78
NM-19-75
NM-19-
110
MW-21-21
MW-21-94
MW-24-45
MW-24-
160
DPL-1
pH
S.U.
>6.5; <8.5
6.6
6.3
6.9
6.2
6.1
6.4
6.2
6.4
5.7
6.4
5.7
7.1
12.4
6.8
7.3
8.4
6.4
6.3
7.6
6.4
6.7
Dry
7.3
Dry
Specific Conductance
mmhos/cm
NE
679
133.5
1349
1000
733
1332
1381
465.2
208.2
566
355.9
381
6957
608
864
146.2
971
1217
438.5
1321
872
Dry
198
Dry
Temperature
°C
NE
16.8
19.4
15.2
13.8
17.4
13.3
17.1
21.8
15.1
18.9
16.5
18.7
18.8
15.9
18
17
17.8
17.6
16.8
17.4
15.8
Dry
17.6
Dry
Turbidity
NTU
NE
9.4
5.1
7.7
1.0
2.16
2.3
2.9
0.8
9.5
1.75
1.1
2.82
2.6
8.92
1.35
8.37
1.8
0.6
0.9
0.2
0.01
Dry
9.3
Dry
Dissolved Oxygen (DO)
mg/L
NE
0.3
5
1.0
1.2
0.31
0.5
0.9
0.9
0.2
2.15
1.35
0.36
3.1
0.58
1.77
1.53
1.0
0.6
0.7
0.8
0.6
Dry
0.7
Dry
Redox
my
NE
-50
64.5
-40
21.4
-78
-20.6
-45
-41.1
-24.9
164.7
225.8
-139.4
-28.3
-82
-99.1
-80.4
-86.3
-39.8
-56.4
-50.8
-32.9
Dry
43
Dry
Dissolved Hydrogen (DH)
nM
1.0
1.00
NE
NT
51
NT
21
NT
NT
8.2
NT
NT
NT
NT
3
NT
NT
NT
NT
4.6
5
5.4
7.7
3.6
NT
27
NT
Lactic Acid
mg/l
0.20
0.085
NE
NT
<0.2
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
<0.2
NT
<0.2
NT
Acetic Acid
mg/l
0.10
0.043
5.0 (i)
NT
<0.1
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
<0.1
<0.1
<0.1
<0.1
NT
0.05 J
NT
Propionic Acid
mg/l
0.10
0.0010
NE
NT
0.0014 J
NT
0.0018 J
NT
NT
0.003 J
NT
NT
NT
NT
0.0013 J
NT
NT
NT
NT
0.0036 J
0.004 J
0.0015 J
<0.1
0.0023 J
NT
0.0048 J
NT
Formic Acid
mg/l
0.50
0.12
NE
NT
<0.5
NT
<0.5
NT
NT
<0.5
NT
NT
NT
NT
<0.5
NT
NT
NT
NT
0.13 J
<0.5
<0.5
<0.5
<0.5
NT
<0.5
NT
Butyric Acid
mg/l
0.10
0.0090
NE
NT
<0.1
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
<0.1
<0.1M<O.2
<0.1
NT
<0.1
NT
Pyruvic Acid
mg/l
0.10
0.014
NE
NT
<0.1
NT
<0.1
NT
NT
0.016 J
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
0.016 J
0.026 J
<0.1
<0.1
NT
<0.1
NT
i-Pentanoic Acid
mg/l
0.10
0.0070
NE
NT
<0.1
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
0.0085 J
<0.1
<0.1
NT
<0.1
NT
Pentanoic Acid
mg/l
0.10
0.0050
NE
NT
<0.1
NT
<0.1
NT
NT
0.052 J
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
0.019 J
<0.10.039
J
NT
<0.1
NT
i-Hexanoic Acid
mg/l
0.20
0.010
NE
NT
<0.2
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
NT
<0.2
NT
Hexanoic Acid
mg/l
0.20
0.020
NE
NT
<0.2
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
NT
<0.2
NT
Methane
ug/l
0.5
0.023
NE
NT
3
NT
0.20 J
NT
NT
1600
NT
NT
NT
NT
240
NT
NT
NT
NT
1400
0.28 J
690
3700
NT
490
NT
Ethane
ug/l
0.1
0.010
NE
NT
<0.1
NT
<0.1
NT
NT
0.38
NT
NT
NT
NT
0.072 J
NT
NT
NT
NT
0.078 J
<0.1
0.16
0.7
NT
0.11
NT
Ethene
119/1
0.1
0.0090
NE
NT
0.024 J
NT
0.059 J
NT
NT
0.21
NT
NT
NT
NT
0.057 J
NT
NT
NT
NT
0.3
0.019 J
1.6
0.068 J
0.28
NT
0.14
NT
Carbon Dioxide (CO,)
mg/l
5.0
0.27
NE
NT
58
NT
4.4 J
NT
NT
120
NT
NT
NT
NT
8.5
NT
NT
NT
NT
360
59
31
220
580
NT
390
NT
Alkalinity
mg/l
20
20
NE
NT
61
NT
440
NT
NT
550
NT
NT
NT
NT
150
NT
NT
NT
NT
300
400
160
680
320
NT
60
NT
SuBide
mg/l
1.0
0.99
NE
NT
<1.0
NT
<1.0
NT
NT
<1.0
NT
NT
NT
NT
1.1
NT
NT
NT
NT
<1.0
<1.0
<1.0
<1.0
<1.0
NT
<1.0
NT
Biological Oxygen Demand (BOD)
mg/l
2.0
0.18
NE
NT
<2.0
NT
2.0
NT
NT
8.2
NT
NT
NT
NT
<2.0
NT
NT
NT
NT
2.9
2.2
<2.0
3.1
2.2
NT
5.8
NT
Sulfate
mg/l
1.0
0.20
250
NT
2.9
NT
24
NT
NT
1.3
NT
NT
NT
NT
8.2
NT
NT
NT
NT
1.4
14
12
38
2.2
NT
23
NT
Nitrate
mg/l
0.020
0.0050
10
NT
0.014 J
NT
<0.02
NT
NT
<0.02
NT
NT
NT
NT
<0.02
NT
NT
NT
NT
<0.02
<0.02
<0.02
<0.02
<0.02
NT
<0.02
NT
Chloride
mg/l
1.0
1.0
250
NT
2.1
NT
67
NT
NT
140
NT
NT
NT
NT
4.8
NT
NT
NT
NT
130
160
38
50
99
NT
7.4
NT
Chemical Oxygen Demand (COD)
mg/l
20
20
NE
NT
<20
NT
<20
NT
NT
37
NT
NT
NT
NT
<20
NT
NT
NT
NT
25
38
<20
33
20
NT
<20
NT
Total Organic Carbon (TOC)
mg/l
1.0
1.0
NE
NT
<1.0
NT
6.2
NT
NT
10
NT
NT
NT
NT
<1.0
NT
NT
NT
NT
7.6
13
2
12
7.3
NT
2.6
NT
Iron H (field measured)
mg/l
0.5
0.5
NE
NT
<0.5
NT
2.0
NT
NT
5.0
NT
NT
NT
NT
4.5
NT
NT
NT
NT
4.5
1 2.5
3.0
3.5
3.0
NT
<0.5
NT
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENIR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances ofMCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quanititation
7. DL = Detection Limit
8. NT = Not Tested
9. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
10. ND = Not Detected
14175-03 Apx C - GW Geochem and Field Parameters.xlsx
Table 11 NINA April 2020
Prepared By: TAO
Checked By: IAI

Table C-3
Groundwater Geochemical Parameters for MNA
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled
by Pace Analytical Services, LLC. October 26-30, 2020
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
NM-4
NM-4A
MW-5
NM-6
MW-6-192
MW-7
NM-12-25
MW-13-35
MW-13-
132
NM-15
NM-17-60
MW-17-
137
MW-17-
310
NM-18-78
NM-19-75
NM-19-
110
MW-21-21
MW-21-94
MW-24-45
MW-24-
160
DPL-1
pH
S.U.
>6.5; <8.5
6.3
6
6.4
6.2
6.2
6.3
6.2
6.3
5.6
6.3
5.5
7.1
12.5
6.9
7.3
8.2
6.3
6.2
7.4
6.3
6.6
Dry
7.4
Dry
Specific Conductance
mmhos/cm
NE
692
128.1
1413
983
548.1
1368
1496
458.6
279.3
548.7
350.2
368.6
7744
584
831
143.5
983
1285
458
1373
886
Dry
210.4
Dry
Temperature
°C
NE
20.5
20.1
17.6
18.2
17.9
15
22.6
17.6
11.6
16.5
15.8
17.9
17.6
24.5
19.5
21.7
17.4
16.2
19
16.4
16.1
Dry
19.3
Dry
Turbidity
NTU
NE
14.5
9.4
2.3
1.1
1
3.2
5.4
2.2
14.1
5.4
7.5
5.1
8.1
5.1
7.9
12
0.6
1.3
0.8
1.6
0.7
Dry
26.3
Dry
Dissolved Oxygen (DO)
m9/1-
NE
0.2
1.8
0.4
0.4
2.7
0.4
0.4
0.6
0.3
1.5
0.5
0.6
5.3
0.5
2.7
0.2
0.3
0.5
0.3
0.4
0.6
Dry
0.5
Dry
Redox
my
NE
-52.6
94.1
-55
-19
-40
-16.8
-47.1
-33.5
60.1
101
68.6
-127.4
-87.8
-105.7
-65.8
-8.1
-54.8
-7.2
-128.5
-40.6
-63.9
Dry
-41.4
Dry
Dissolved Hydrogen (DH)
nM
1.9
0.49
NE
NT
5.4
NT
4.6
NT
NT
20
NT
NT
NT
NT
6
NT
NT
NT
NT
6.6
1.4 J
3.6
2.7
5.3
Dry
10
Dry
Lactic Acid
mg/I
0.50
0.053
NE
NT
<0.053
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
0.058 J
Dry
Acetic Acid
mg/I
0.50
0.12
5.0 (i)
NT
0.41 J
NT
4.0 J
NT
NT
4.1 J
NT
NT
NT
NT
4.0 J
NT
NT
NT
NT
4.0 J
3.9 J
0.44 J
3.7 J
0.79 J
Dry
0.42 J
Dry
Propionic Acid
mg/I
0.50
0.053
NE
NT
<0.053
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
<0.053
Dry
Formic Acid
mg/I
0.50
0.055
NE
NT
5.0
NT
48
NT
NT
45
NT
NT
NT
NT
44
NT
NT
NT
NT
46
44
4.8
44
9.5
Dry
4.8
Dry
Butyric Acid
mg/I
0.50
0.058
NE
NT
<0.058
NT
<0.058
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
<0.058
<0.058
Dry
<0.058
Dry
Pyruvic Acid
mg/I
0.50
0.060
NE
NT
<0.060
NT
<0.060
NT
NT
<0.060
NT
NT
NT
NT
<0.060
NT
NT
NT
NT
<0.060
<0.060
<0.060
<0.060
<0.060
Dry
<0.06
Dry
i-Pentanoic Acid
mg/I
0.50
0.061
NE
NT
<0.061
NT
<0.061
NT
NT
<0.061
NT
NT
NT
NT
<0.061
NT
NT
NT
NT
<0.061
<0.061
<0.061
<0.061
<0.061
Dry
<0.061
Dry
Pentanoic Acid
mg/I
0.50
0.056
NE
NT
<0.056
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
i-Hexanoic Acid
mg/I
0.50
0.056
NE
NT
<0.056
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
Hexanoic Acid
mg/I
0.50
0.058
NE
NT
0.076 J
NT
0.67 J
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
0.58 J
<0.058
Dry
0.058 J
Dry
Methane
ug/I
5.0
2.5
NE
NT
7.7
NT
720
NT
NT
4,700
NT
NT
NT
NT
1400
NT
NT
NT
NT
1700
480
400
1900
2000
Dry
27
Dry
Ethane
ug/I
1.0
0.075
NE
NT
<0.075
NT
0.47 J
NT
NT
0.92 J
NT
NT
NT
NT
<0.075
NT
NT
NT
NT
1.1
0.67 J
<0.075
1.1
1.5
Dry
<0.075
Dry
Ethene
ug/I
1.0
0.12
NE
NT
<0.12
NT
0.46 J
NT
NT
0.3 J
NT
NT
NT
NT
1.8
NT
NT
NT
NT
1.3
0.46 J
<0.12
0.75 J
0.33 J
Dry
0.34 J
Dry
Carbon Dioxide (CO,)
mg/I
0.9
0.127
NE
NT
30
NT
177
NT
NT
197
NT
NT
NT
NT
281
NT
NT
NT
NT
83.2
141
3.93
165
55.9
Dry
1.43
Dry
Alkalinity
mg/I
20
20
NE
NT
60
NT
420
NT
NT
560
NT
NT
NT
NT
150
NT
NT
NT
NT
300
410
170
640
310
Dry
64
Dry
SuOide
mg/I
1.0
0.99
NE
NT
<0.99
NT
1.3
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
1.2
<1.0
<1.0
1.6
<1.0
Dry
<0.99
Dry
Biological Oxygen Demand (BOD)
mg/I
2.0
0.18
NE
NT
<0.18
NT
2.2
NT
NT
10
NT
NT
NT
NT
3.6
NT
NT
NT
NT
3.9
2.8
2.4
3.2
2.1
Dry
2
Dry
Sulfate
mg/I
1.0
0.20
250
NT
4.1
NT
21
NT
NT
0.78 J
NT
NT
NT
NT
7.2
NT
NT
NT
NT
1.2
11
9.7
13
2.2
Dry
27
Dry
Nitrate
mg/I
0.10
0.025
10
NT
0.028
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
<0.025
NT
NT
NT
NT
<0.025
<0.025
<0.025
<0.025
<0.025
Dry
<0.025
Dry
Chloride
mg/I
1.0
0.20
250
NT
2.1
NT
57
NT
NT
140
NT
NT
NT
NT
4.7
NT
NT
NT
NT
140
160
39
86
89
Dry
6.4
Dry
Chemical Oxygen Demand (COD)
mg/I
20
20
NE
NT
<20.0
NT
21
NT
NT
39
NT
NT
NT
NT
<20.0
NT
NT
NT
NT
28
45
<20.0
38
21
Dry
<20.0
Dry
Total Organic Carbon (TOC)
mg/I
1.0
1.0
NE
NT
<1.0
NT
5.9
NT
NT
11
NT
NT
NT
NT
<1.0
NT
NT
NT
NT
8
14
2.2
12
7.1
Dry
1.1
Dry
Iron H (field measured)
mg/I
0.5
0.5
NE
2.5
ND
NT
6.0
NT
2.5
3.0
3.0
3.0
ND
1.0
7.0
ND
2.0
3.0
ND
3.0
1 2.0
2.5
7.0
2.0
1 Dry
1.5
Dry
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENP, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances ofMCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quanititation
7. DL = Detection Limit
8. NT = Not Tested
9. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
10. ND = Not Detected
14175-03 Apx C - GW Geochem and Field Parameters.xlsx
Table 11 NINA Oct 2020
Prepared By: TAO
Checked By: IAI

Table C-4
Groundwater Geochemical Parameters for MNA
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled by Pace Analytical Services, LLC. April 28-29, 2021
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
NM-6
MW-6-192
NM-7
NM-12-25
NM-13-35
MW-13-
132
NM-15
MW-17-60
MW-17-
137
MW-17-
310
NM-18-78
NM-19-75
NM-19-
110
MW-21-21
MW-21-94
MW-24-45
MW-24-
160
DPL-1
pH
S.U.
>6.5; <8.5
6.8
6.1
6.3
5.97
6.11
6.4
6.1
6.29
5.7
6.6
5.9
6.8
12.82
6.9
7.4
8.5
6.3
6.3
7.5
6.4
6.7
Dry
7.39
7.2
Specific Conductance
mmhos/cm
NE
699
135.7
1450
1050
683
1490
1473
473.1
262.2
523.7
340.7
374
8058
606
824
144.9
1020
1180
459.7
1580
902
Dry
213.2
1675
Temperature
°C
NE
16.9
21.4
21.8
18.8
22.3
19.1
23.5
18.9
15.9
16.5
17.1
26.2
18.1
20.8
15.9
24.7
15.7
20
16.8
17.1
16.9
Dry
19
30.2
Turbidity
NTU
NE
9.8
8.7
5.9
2.02
5.67
1.1
0.9
3.73
9.3
1.4
2.4
7.4
2.86
4.1
0.7
3.2
4.5
0.5
0.7
4
0.1
Dry
8.08
9.9
Dissolved Oxygen (DO)
m9/1-
NE
0.1
5.3
0.6
1.03
3.76
0.3
0.5
0.66
0.1
2.8
2.7
0.8
5.37
2.7
0.8
0.4
1.5
0.8
0.6
0.1
0.2
Dry
1.49
1.7
Redox
my
NE
-133.3
44.2
-64.1
-4.7
-29.7
-20
-27.2
-40.4
36.6
87
105.8
-131.4
-100.1
-71.1
-145.1
64.1
-22
-8.9
-119.4
-60.8
-71.5
Dry
-94.4
64.1
Dissolved Hydrogen (DH)
nM
1.9
0.49
NE
NT
120
NT
0.76 J
NT
NT
22
NT
NT
NT
NT
20
NT
NT
NT
NT
<0.49
0.95 J
3.4
8.4
17
Dry
4.2
NT
Lactic Acid
mg/l
0.50
0.053
NE
NT
<0.053
NT
<0.11
NT
NT
<0.53
NT
NT
NT
NT
<0.53
NT
NT
NT
NT
<0.53
<0.53
<0.11
<0.53
<0.53
Dry
<0.053
NT
Acetic Acid
mg/l
0.50
0.12
5.0 (i)
NT
0.37 J
NT
0.66 J
NT
NT
2.7 J
NT
NT
NT
NT
2.7 J
NT
NT
NT
NT
2.9 J
2.6 J
0.52 J
3.8 J
2.4 J
Dry
0.27 J
NT
Propionic Acid
mg/l
0.50
0.053
NE
NT
<0.053
NT
<0.11
NT
NT
<0.53
NT
NT
NT
NT
<0.53
NT
NT
NT
NT
<0.53
<0.53
<0.11
<0.53
<0.53
Dry
<0.053
NT
Formic Acid
mg/l
0.50
0.055
NE
NT
4.6
NT
10
NT
NT
52
NT
NT
NT
NT
48
NT
NT
NT
NT
45
53
12
47
49
Dry
5.3
NT
Butyric Acid
mg/l
0.50
0.058
NE
NT
<0.058
NT
0.15 J
NT
NT
<0.58
NT
NT
NT
NT
<0.58
NT
NT
NT
NT
<0.58
<0.58
<0. 12
<0.58
<0.58
Dry
<0.058
NT
Pyruvic Acid
mg/l
0.50
0.06
NE
NT
<0.060
NT
<0. 12
NT
NT
<0.60
NT
NT
NT
NT
<0.60
NT
NT
NT
NT
<0.60
<0.60
<0. 12
<0.60
<0.60
Dry
<0.060
NT
i-Pentanoic Acid
mg/l
0.50
0.061
NE
NT
<0.061
NT
<0. 12
NT
NT
<0.61
NT
NT
NT
NT
<0.61
NT
NT
NT
NT
<0.61
<0.61
<0. 12
<0.61
<0.61
Dry
<0.061
NT
Pentanoic Acid
mg/l
0.50
0.056
NE
NT
<0.056
NT
<0.11
NT
NT
<0.56
NT
NT
NT
NT
<0.56
NT
NT
NT
NT
<0.56
<0.56
<0.11
<0.56
<0.56
Dry
<0.056
NT
i-Hexanoic Acid
mg/l
0.50
0.056
NE
NT
<0.056
NT
<0.11
NT
NT
<0.56
NT
NT
NT
NT
<0.56
NT
NT
NT
NT
<0.56
<0.56
<0.11
<0.56
<0.56
Dry
<0.056
NT
Hexanoic Acid
mg/l
0.50
0.058
NE
NT
<0.058
NT
<0. 12
NT
NT
<0.58
NT
NT
NT
NT
<0.58
NT
NT
NT
NT
<0.58
<0.58
<0. 12
<0.58
<0.58
Dry
<0.058
NT
Methane
ug/l
5.0
2.5
NE
NT
5200
NT
3.6 J
NT
NT
680
NT
NT
NT
NT
3.5
NT
NT
NT
NT
450
1400
170
2200
2000
Dry
35
NT
Ethane
ug/l
1.0
0.075
NE
NT
1.2
NT
<0.075
NT
NT
0.20 J
NT
NT
NT
NT
0.79 J
NT
NT
NT
NT
<0.075
0.62 J
0.18 J
0.32 J
0.75 J
Dry
<0.075
NT
Ethene
119/1
1.0
0.12
NE
NT
31
NT
<0. 12
NT
NT
<0. 12
NT
NT
NT
NT
0.29 J
NT
NT
NT
NT
0.70 J
<0. 12
<0. 12
0.46 J
0.28 J
Dry
0.36 J
NT
Carbon Dioxide (CO,)
mg/l
0.9
0.127
NE
NT
17.3
NT
162
NT
NT
179
NT
NT
NT
NT
15.8
NT
NT
NT
NT
121
94.4
3.84
341
77.1
Dry
1.36
NT
Alkalinity
mg/l
20
20
NE
NT
64
NT
450
NT
NT
570
NT
NT
NT
NT
150
NT
NT
NT
NT
300
410
170
770
310
Dry
70
NT
SuBide
mg/l
1.0
0.99
NE
NT
1.2
NT
<0.99
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
3.7
<0.99
<0.99
1.5
2.6
Dry
1.8
NT
Biological Oxygen Demand (BOD)
mg/l
2.0
0.18
NE
NT
<0.18
NT
<0.18
NT
NT
6.6
NT
NT
NT
NT
<0.18
NT
NT
NT
NT
2.7
<0.18
<0.18
3.7
<0.18
Dry
<0.18
NT
Sulfate
mg/l
1.0
0.2
250
NT
3.2
NT
<0.2
NT
NT
1.1
NT
NT
NT
NT
7.8
NT
NT
NT
NT
2.2
17
12
23
3.3
Dry
23
NT
Nitrate
mg/l
0.100
0.0250
10
NT
0.027
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
0.028 J
NT
NT
NT
NT
<0.025
0.012 J
<0.025
<0.025
<0.025
Dry
<0.025
NT
Chloride
mg/l
1.0
0.20
250
NT
2.4
NT
0.32 J
NT
NT
160
NT
NT
NT
NT
5.1
NT
NT
NT
NT
150
150
41
70
98
Dry
6.5
NT
Chemical Oxygen Demand (COD)
mg/l
20
20
NE
NT
<20.0
NT
20
NT
NT
42
NT
NT
NT
NT
<20.0
NT
NT
NT
NT
33
40
<20.0
58
28
Dry
<20.0
NT
Total Organic Carbon (TOC)
mg/l
1.0
1.0
NE
NT
11
NT
6.3
NT
NT
15
NT
NT
NT
NT
1.1
NT
NT
NT
NT
8.9
12
2.8
15
7.3
Dry
1.4
NT
Iron H (field measured)
mg/l
0.5
0.5
NE
NT
ND
NT
6.0
NT
NT
3.0
NT
NT
ND
ND
6.0
NT
4.5
1.5
ND
5.0
1 >7.0
2.5
2.5
4.5
1 Dry
5.0
NT
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENIR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances ofMCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quanititation
7. DL = Detection Limit
8. NT = Not Tested
9. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
10. ND = Not Detected
14175-03 Apx C - GW Geochem and Field Parameters.xlsx
Table 11 NINA April 2021
Prepared By: TAO
Checked By: IAI

Table C-5
Groundwater Geochemical Parameters for MNA
Old Buncombe County Landfill
Woodfin, North Carolina
Permit No. 1101-MSWLF-1979
BLE Project Number J20-14175-03
Sampled
by Pace Analytical Services, LLC. October 25-28, 2021
TEST
UNITS
LOQ
DL
MCL
MW-B
MW-2
MW-3
MW-4
MW-4A
MW-5
NM-6
MW-6-192
NM-7
MW-12-25
MW-13-35
MW-13-
132
NM-15
NM-17-60
MW-17-
137
MW-17-
310
NM-18-78
NM-19-75
NM-19-
110
MW-21-21
MW-21-94
MW-24-45
MW-24-
160
DPL-1
pH
S.U.
>6.5; <8.5
6.5
6.7
6.5
6.3
6.2
6.5
6.2
6.3
5.8
6.4
5.7
7.0
12.5
6.9
7.4
8.5
6.3
6.1
7.3
6.3
6.5
Dry
7.6
Dry
Specific Conductance
mmhos/cm
NE
690
137.2
1372
966
660
1554
1526
531.1
274.9
599
353.7
369.9
8080
609.2
838
142.4
970
1121
493.1
1425
880
Dry
210.1
Dry
Temperature
°C
NE
17.7
14.5
16
18
20.9
13.8
17.3
18.4
15.4
23.4
21
18.9
12.9
13.5
14.5
13.4
17.2
14.2
13.6
17.5
16.8
Dry
15
Dry
Turbidity
NTU
NE
14.9
7.7
2.1
4.4
4.6
2.1
0.5
1.0
6.2
0.8
0.1
7.0
0.7
0.2
0.2
2.5
4.0
1.2
0.4
1.1
0.4
Dry
57
Dry
Dissolved Oxygen (DO)
m9/1-
NE
0.3
6.4
0.5
0.4
0.8
0.5
0.3
0.4
0.3
0.7
0.3
1.0
6.4
0.6
0.7
0.5
0.6
0.2
0.4
0.3
0.2
Dry
4.2
Dry
Redox
my
NE
-58.2
50.8
-40.5
-18.8
-33.6
-29.9
-50
-5.7
40.7
164
179.4
-92.6
0.9
-30.7
-97.2
-17.5
-13.9
-0.6
-103
-46.9
-114.9
Dry
4.4
Dry
Dissolved Hydrogen (DH)
nM
1.9
0.49
NE
NT
1.9 J
NT
170
NT
NT
25
NT
NT
NT
NT
19
NT
NT
NT
NT
2.9 J
3.6 J
2.7 J
2.4 J
5
Dry
120
Dry
Lactic Acid
mg/l
0.50
0.053
NE
NT
0.70
NT
0.54
NT
NT
<0.053
NT
NT
NT
NT
1
NT
NT
NT
NT
<0.053
<0.053
0.91
3.8 J
<0.053
Dry
1.1
Dry
Acetic Acid
mg/l
0.50
0.12
5.0 (i)
NT
0.18 J
NT
0.26 J
NT
NT
1.7 J
NT
NT
NT
NT
0.15 J
NT
NT
NT
NT
1.9 J
1.6 J
0.24 J
2.0 J
1.6 J
Dry
0.14 J
Dry
Propionic Acid
mg/l
0.50
0.053
NE
NT
<0.053
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
<0.053
Dry
Formic Acid
mg/l
0.50
0.055
NE
NT
4.9 J
NT
4.9
NT
NT
43
NT
NT
NT
NT
5.2
NT
NT
NT
NT
43
44
5.0
45
42
Dry
4.9
Dry
Butyric Acid
mg/l
0.50
0.058
NE
NT
<0.058
NT
<0.058
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
<0.058
<0.058
Dry
<0.058
Dry
Pyruvic Acid
mg/l
0.50
0.06
NE
NT
<0.06
NT
<0.06
NT
NT
<0.06
NT
NT
NT
NT
<0.06
NT
NT
NT
NT
<0.06
<0.06
<0.06
<0.06
<0.06
Dry
<0.06
Dry
i-Pentanoic Acid
mg/l
0.50
0.061
NE
NT
<0.061
NT
<0.061
NT
NT
<0.061
NT
NT
NT
NT
<0.061
NT
NT
NT
NT
<0.061
<0.061
<0.061
<0.061
<0.061
Dry
<0.061
Dry
Pentanoic Acid
mg/l
0.50
0.056
NE
NT
<0.056
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
i-Hexanoic Acid
mg/l
0.50
0.056
NE
NT
<0.056
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
Hexanoic Acid
mg/l
0.50
0.058
NE
NT
<0.058
NT
0.065 J
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
0.071 J
<0.058
<0.058
Dry
<0.058
Dry
Methane
ug/l
5.0
2.5
NE
NT
<2.5
NT
270
NT
NT
1,200
NT
NT
NT
NT
300
NT
NT
NT
NT
500
190
460
630
830
Dry
7.8
Dry
Ethane
ug/l
1.0
0.075
NE
NT
<0.075
NT
<0.075
NT
NT
0.51 J
NT
NT
NT
NT
<0.075
NT
NT
NT
NT
0.36 J
0.22 J
<0.075
0.24 J
0.36 J
Dry
<0.075
Dry
Ethene
119/1
1.0
0.12
NE
NT
<0. 12
NT
<0. 12
NT
NT
<0. 12
NT
NT
NT
NT
0.29 J
NT
NT
NT
NT
<0. 12
<0. 12
<0. 12
0.26 J
<0. 12
Dry
<0. 12
Dry
Carbon Dioxide (CO,)
mg/l
0.9
0.127
NE
NT
3.45
NT
373
NT
NT
406
NT
NT
NT
NT
35.9
NT
NT
NT
NT
183
273
13.6
427
132
Dry
2.63
Dry
Alkalinity
mg/l
20
20
NE
NT
64
NT
430
NT
NT
540
NT
NT
NT
NT
150
NT
NT
NT
NT
260
380
180
600
290
Dry
70
Dry
Sulfide
mg/l
1.0
0.99
NE
NT
<0.99
NT
<0.99
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
<0.99
<0.99
<0.99
<0.99
<0.99
Dry
<0.99
Dry
Biological Oxygen Demand (BOD)
mg/l
2.0
0.18
NE
NT
<0.18
NT
3.0
NT
NT
4.7
NT
NT
NT
NT
<0.18
NT
NT
NT
NT
<0.18
2.9
<0.18
<0.18
<0.18
Dry
<0.18
Dry
Sulfate
mg/l
1.0
0.2
250
NT
2.9
NT
24
NT
NT
0.37 J
NT
NT
NT
NT
6.4
NT
NT
NT
NT
1.7
18
8.8
10
2.4
Dry
24
Dry
Nitrate
mg/l
0.10
0.025
10
NT
<0.025
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
<0.025
NT
NT
NT
NT
<0.025
<0.025
<0.025
<0.025
<0.025
Dry
<0.025
Dry
Chloride
mg/l
1.0
0.2
250
NT
2.2
NT
55
NT
NT
160
NT
NT
NT
NT
5
NT
NT
NT
NT
140
140
42
110
96
Dry
6.8
Dry
Chemical Oxygen Demand (COD)
mg/l
20
20
NE
NT
<20
NT
<20
NT
NT
37
NT
NT
NT
NT
<20
NT
NT
NT
NT
24
30
<20
33
<20
Dry
<20
Dry
Total Organic Carbon (TOC)
mg/l
1.0
1.0
NE
NT
<1.0
NT
5.3
NT
NT
12
NT
NT
NT
NT
1.1
NT
NT
NT
NT
8.1
11
2.8
11
6.9
Dry
1.3
Dry
Iron H (field measured)
mg/l
NE
NT
ND
NT
2.0
NT
NT
6.0
NT
NT
NT
NT
4.5
NT
NT
NT
NT
4.0
1 1.5
1.5
7
6.5
1 Dry
0.5
Dry
Notes:
1. MCL = Maximum Contaminant Level, as established in the NCDENIR, Classifications of Water Quality Standards Applicable
to Groundwaters of North Carolina, Section 15A NCAC 2L .0202. Updated April 1, 2013
2. (i) = Interim Maximum Allowable Concentrations (IMACs). Updated June 30, 2021
3. Shaded cells indicate exceedances of IMACs
4. Shaded cells indicated exceedances ofMCLs
5. NE = Not Established; North Carolina has not established a MCL
6. LOQ = Limit of Quanititation
7. DL = Detection Limit
8. NT = Not Tested
9. "J"-flagged data (i.e., values estimated between the DL and the LOQ) are presented on this spreadsheet.
10. ND = Not Detected
14175-03 Apx C - GW Geochem and Field Parameters.xlsx
Table 11 NINA Oct 2021
Prepared By: RLB/TAO
Checked By: IAI

APPENDIX D
GROUNDWATER VOC TREND PLOTS
[5 VOC CATEGORIES]

50
45
40
35
30
�n
a
0 25
s.
20
C
0
U
15
10
5
0
I
tTetrachloroethene [ND]
-41—Trichloroethene [ND]
f cis-1,2-Dichloroethene
—*—Vinyl Chloride
(Groundwater Elevation
Monitoring Well MW-B
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
—
—
—
—
rl
rl
rl rl
Chart MW-B (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1970
1965
1960
1955
0
0
1950 W
e�
1945
0
0
s.
C7
1940
1935
1930
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
aA
0 25
s.
20
0
U
15
10
5
0
—0—Tetrachloroethene [ND]
fTrichloroethene [ND]
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
Monitoring Well MW-3
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
N
N
N
N
N
N
N
N
e4
N N
rl
rl
rl
rl
rl rl
Chart MW-3 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1950
1940
1930
1920
0
1910 W
a�
1900 c
Al
1890
1880
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
0 25
s.
20
0
U
15
10
5
0
—$--Tetrachloroethene
tTrichloroethene
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
Monitoring Well MW-4
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1970
1960
1950
E
1940
0
0
1930 W
s�
0
1920 c
IN
1910
1900
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u 4
C
0
U
3
2
1
0
—$--Tetrachloroethene
--&-Trichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well MW-4 (Rescaled)
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4 (Ethene) (2) of GW Ethene Trend Plots for OBCLF 14175-03
1970
1960
1950
E
1940
0
0
1930 W
s�
0
1920 c
7:
1910
1900
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u 4
C
0
U
3
2
1
0
i i
—$--Tetrachloroethene [ND]
tTrichloroethene [ND]
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
Monitoring Well MW-4A
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4A (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2025
2020
2015
2010
w
2005
0
2000 W
1995
0
0
0
s.
1990
0WS1
1980
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
0
U
3
2
1
0
—4--Tetrachloroethene [ND]
-40---Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well MW-5
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-5 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1990
1985
1980
1975
1970
0
1965
a�
W
s.
1960
1955 0
1950
1945
1940
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
�4 6
aA
0 5
s.
4
u
C
0
U
3
2
1
0
0
O
N
M
N
Monitoring Well MW-6
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—+--Tetrachloroethene [ND]
--W-Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride
(Groundwater Elevation
In AL
I �� s„ s �� � �� = -MEEL �
-i
-0
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-6 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2010
2005
1995 Q�
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
a 6
a
0 5
u
4
0
0
U
3
2
1
0
tTetrachloroethene [ND]
tTrichloroethene [ND]
fcis-1,2-Dichloroethene [ND]
Vinyl Chloride [ND]
f Groundwater Elevation
Monitoring Well MW-6-192
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
Chart MW-6-192 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2000
1995
1990
1985
A
1980
0
1975
W
1970
1965 c
C7
1960
1955
1950
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
a
0 25
20
0
0
U
15
10
5
0
N
Monitoring Well MW-7
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
t Tetrachloroethene
f Trichloroethene
f cis-1,2-Dichloroethene
—Vinyl Chloride [ND]
—*--Groundwater Elevation
Well Dry, No Sample Collected
I
rl
rl
rl
�--i
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
N
N
N
N
N
N
N
N
e4
N N
rl
rl
rl
rl
rl rl
Chart MW-7 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2090
2089
2088
2087
A
2086
0
2085
W
2084
2083 c
C7
2082
2081
2080
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0 5
s.
u
4
0
0
U
3
2
1
0
--&-Trichloroethene [ND]
f cis-1,2-Dichloroethene
[ND]
Vinyl Chloride [ND]
Monitoring Well MW-12-25
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-12-25 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2040
2035
2030
2025
2020
0
2015
a�
W
s.
2010
2005 0
2000
1995
1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
U 10
5
Tetrachloroethene
-40---Trichloroethene
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
Monitoring Well MW-13-35
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
0
O
rl
N
M 7
O
N
O
N
O
N
O O
N N
M
M
M
M M
N
N
N
N N
Chart MW-13-35 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
LE
O O
O
O
O
O O
N N
N
N
N
N N
M M
M
M
M
M M
N N
N
N
N
N N
2020
2015
2010
w
0
2005
a�
W
s.
a�
2000
0
Al
1995
—4 1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
aA
0 25
s.
20
0
0
U
15
10
5
0
0
O
N
M
N
Monitoring Well MW-13-132
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—$--Tetrachloroethene [ND]
-4lo-Trichloroethene [ND]
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
-i
-0
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-13-132 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2010
2000
1990
w
0
1980
a�
W
Al
1960
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u 4
C
0
U
3
2
1
0
—4--Tetrachloroethene [ND]
-40---Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well MW-17-60
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-60 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1920
1910
1900 v
w
0
1890
a�
W
s.
a�
1880
0
Al
1870
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0 5
s.
u 4
C
0
U
3
2
1
0
—4--Tetrachloroethene [ND]
-40---Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well MW-17-137
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-137 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1920
1910
1900 v
w
Al
1870
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
an
0
0 5
0
s.
4
c>
0
0
U
3
2
1
0
Monitoring Well MW-18-78
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—4--Tetrachloroethene [ND]
-40--Trichloroethene [ND]
— cis-1,2-Dichloro ethene
-40--Vinyl Chloride
(Groundwater Elevation
A.
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-18-78 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1900
1895
1890
1885
w
a~
0
1880
W
1875
a~
0
1870 U
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
0
U
3
2
1
0
--&-Trichloroethene [ND]
f cis-1,2-Dichloroethene
[ND]
Vinyl Chloride [ND]
Monitoring Well MW-19-75
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-75 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
1885
a�
W
s.
1880
1875 0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
0
U
3
2
1
0
—4--Tetrachloroethene [ND]
-40---Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride [ND]
(Groundwater Elevation
Monitoring Well MW-19-110
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-110 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
1885
a�
W
s.
1880
1875 0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
�1 30
aA
0 25
s.
20
0
U
15
10
5
0
0
O
N
M
N
Monitoring Well MW-21-21
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—$--Tetrachloroethene [ND]
-41-Trichloroethene
f cis-1,2-Dichloroethene
—Vinyl Chloride
—Groundwater Elevation
Pk
-i
.0
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-21-21 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1920
1910
is
1880
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
0
U
3
2
1
0
—4--Tetrachloroethene ND]
-40---Trichloroethene [ND]
f cis-1,2-Dichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well MW-21-94
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-94 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
1885
a�
W
s.
1880
1875 0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
aA
0 25
s.
20
0
0
U
15
10
5
0
0
O
N
M
N
Monitoring Well DPL-2
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
t Tetrachloroethene
tTrichloroethene
f cis-1,2-Dichloroethene
Vinyl Chloride
(Groundwater Elevation
Ah
-i
—I
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart DPL-2 (Ethene) of GW Ethene Trend Plots for OBCLF 14175-03
2040
2030
w
0
a�
2020 W
s.
a�
0
2010
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
to
0
0 5
0
s.
4
0
0
U
3
2
1
0
t Tetrachloroethene
tTrichloroethene
tVinyl Chloride
(Groundwater Elevation
Monitoring Well DPL-2 (Rescaled)
Tetrachloroethene (PCE) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
-0
N
M
R
r
O
0�
O —I
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart DPL-2 (Ethene) (2) of GW Ethene Trend Plots for OBCLF 14175-03
2040
2030
w
0
2020 W
s.
a�
0
2010
2000
N
N
O
N
M
N
r-I
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
a 6
0
0 5
s.
4
u
0
0
U
3
2
1
0
Monitoring Well MW-B
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I
—$--1,1,1-Trichloroethane [ND]
-41-1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
-
-
-
-
rl
rl
rl rl
Chart MW-B (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1970
1965
1960
1955
w
0
1950
W
s.
1945
0
1940
1935
1930
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
aA
0 25
s.
20
0
U
15
10
5
0
Monitoring Well MW-3
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I I
—$--1,1,1-Trichloroethane [ND]
1,1-Dichloroethane
f Chloroethane
f Groundwater Elevation
O
rl
N
M
'IT
V1
1z
r-
00
0�
O
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-3 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1950
1940
1930
w
1920
0
0
0
1910
0
1900 c
is
1890
1880
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
0 25
s.
20
0
U
15
10
5
Monitoring Well MW-4
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
-4-1,1,1-Trichloroethane [ND]
1,1-Dichloroethane
-.i--- Chloroethane
(Groundwater Elevation
o
-0
N
M
v�
I
r
00
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
1960
1955
1950
1945
1940
1935
0
0
1930
Ell
1925
1920
0
0
0
1915 �
1910
1905
1900
N
N
O
N
M
N
Prepared By: RLB/TAO
Chart MW-4 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03 Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
U
3
2
1
0
Monitoring Well MW-4A
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—H1,1,1-Trichloroethane [ND]
t1,1-Dichloroethane [ND]
f Chloroethane [ND]
(Groundwater Elevation
o
N
M
IT
k
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4A (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2030
2025
2020
2015
E
2010 w
0
0
2005
2000
1995
0
L7
1990
1985
1980
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
0
U
3
2
1
0
Monitoring Well MW-5
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I
--$--1,1,1-Trichloroethane [ND]
f 1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
o
N
M
�_
kn
o
r
00
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-5 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1990
1985
1980
1975
1970 w
0
0
1965
1960
1955
0
L7
1950
1945
1940
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
U 10
5
Monitoring Well MW-6
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
t1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
f Chloroethane
f Groundwater Elevation
0
O
rl
N
M
K)
l
00
O)
O
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-6 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2010
2005
w
0
0
2000
0
0
0
1995 �
—4 1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
a 6
0
0 5
s.
u
4
0
0
U
3
2
1
0
Monitoring Well MW-6-192
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—*--1,1,1-Trichloroethane [ND]
1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
Chart MW-6-192 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2000
1995
1990
1985
1980 w
0
1975
W
1970
1965
0
L7
1960
1955
1950
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

0,
25
20
15
61
Monitoring Well MW-7
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—4--1,1,1-Trichloroethane [ND]
f Chloroethane
1,1-Dichloroethane
(Groundwater Elevation
•
Well Dry, No Sample Collected
0
rl
rl
rl
rl
ti
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-7 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2090
2089
2088
2087
2086 w
0
2085
W
2084
3
2083
0
s.
L7
2082
2081
2080
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0 5
s.
u
4
0
U
3
2
1
0
Monitoring Well MW-12-25
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I
--$--1,1,1-Trichloroethane [ND]
f1,1-Dichloroethane [ND]
f Chloroethane [ND]
(Groundwater Elevation
o
N
M
IT
k
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-12-25 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2040
2035
2030
2025
E
2020 w
0
0
2015
2010
2005
0
�7
2000
1995
1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0 5
s.
u
4
C
0
U
3
2
1
0
Monitoring Well MW-13-35
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—H1,1,1-Trichloroethane [ND]
t1,1-Dichloroethane [ND]
f Chloroethane [ND]
(Groundwater Elevation
o
N
M
IT
k
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-35 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2020
2015
2010
w
0
0
2005
2000
0
0
0
is
1995
1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
C
0
U
3
2
1
0
Monitoring Well MW-13-132
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I I
--$--1,1,1-Trichloroethane [ND]
f 1,1-Dichloroethane
f Chloroethane [ND]
(Groundwater Elevation
o
N
M
'IT
k
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-132 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2010
2000
1990
w
0
0
1980
1970
0
0
0
7:
1960
—4 1950
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
o1 6
U
3
2
1
Monitoring Well MW-17-60
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
--$--1,1,1-Trichloroethane [ND]
f 1,1-Dichloroethane
f Chloroethane [ND]
(Groundwater Elevation
o
-0
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
1920
1915
1910
1905
1900
1895
0
0
1890
Ell
1885
1880
0
0
0
1875 �
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Chart MW-17-60 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03 Checked By: RLB

10
9
8
7
o1 6
U
3
2
1
Monitoring Well MW-17-137
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I I
—$--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
—M— Chloroethane
(Groundwater Elevation
0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-137 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1920
1915
1910
1905
1900
1895
0
0
1890
1885 �.
1880
0
0
0
1875
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
�4 6
aA
0 5
s.
u
4
0
0
U
3
2
1
0
0
O
N
M
N
Monitoring Well MW-18-78
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
1910
—$--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
1905
f Chloroethane
1900
(Groundwater Elevation
1895
1890
0
1885
W
s.
1880
1875 0
1870
1865
1860
rl N
M
Itt
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-18-78 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
C
0
U
3
2
1
0
Monitoring Well MW-19-75
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—*--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
—W- Chloroethane
(Groundwater Elevation
o
N
M
'IT
k
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-75 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
E
1890 w
0
0
1885
1880
1875
0
�7
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0 5
s.
u
4
C
0
U
3
2
1
0
Monitoring Well MW-19-110
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—+--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
o
N
M
v�
o
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-110 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
E
1890 w
0
0
1885
1880
1875
0
�7
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
U 10
5
Monitoring Well MW-21-21
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
—4--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
0
o
N
M
v�
I
r
00
0�
o
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-21 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
0
1885
1880
1875
0
�7
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
U 10
Monitoring Well MW-21-94
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
rl rl rl rl �--i .--i rl rl N N
O O O O O O O O O O O
N N N N N N N N N N N
M M M M M M M M M M M
N N N N N N N N N N N
Chart MW-21-94 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
0
1885
W
1880
c�
1875
0
L7
1870
1865
1860
N
N
O
N
rl
M
N
rl
Prepared
By:
RLB/TAO
Checked By: RLB

50
45
40
35
30
0 25
s.
20
0
U
15
10
5
0
Monitoring Well DPL-2
1,1,1-Trichloroethane (1,1,1-TCA) and its Breakdown Products
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I I I
—$--1,1,1-Trichloroethane [ND]
t 1,1-Dichloroethane
f Chloroethane
(Groundwater Elevation
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart DPL-2 (Ethane) of GW Ethane Trend Plots for OBCLF 14175-03
2040
2035
2030
2025
w
0
0
2020
2015
0
0
0
2010
2005
2000
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
5
0
0
0 4
c�
0
3
0
0
U
2
1
0
Benzene [ND]
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-B
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
Chart MW-B (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1970
1960
1930
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
.a 6
nn
0
0 5
c�
4
U
O
V
3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes
(Groundwater Elevation
Monitoring Well MW-3
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-3 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1950
1940
1930
IN
1890
1880
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
*1 6
0
0 5
s.
c>
4
0
0
U
3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-4
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1970
1960
1950
1940
0
1930 W
1920
0
N
1910
1900
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

50
45
40
35
30
an
0
25
0
20
c
0
U 15
10
5
0
Benzene
tEthylbenzene
f Toluene
Total Xylenes
(Groundwater Elevation
Monitoring Well MW-4A
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-4A (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2020
2010 =
rA
A
0
0
2000 W
0
1990
1980
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
Benzene
-40--Ethylbenzene
f Toluene
—Ar--Groundwater Elevation
Monitoring Well MW-4A (Rescaled)
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
2020
2010 =
rA
A
0
0
2000 W
C
0
1990
0
1980
o
-0
0�
o
.0
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O O
N N
O
N
O
N
O
N
O
N
M
M
M
M
M
M
M
M M
M
M
M
M
N
N
N
N
N
N
N
N N
N
N
N
N
Chart MW-4A (BTEX) (2) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
^ 6
5
0
s.
4
u
C
0
U 3
2
1
0
Benzene
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-5
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
Chart MW-5 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1990
1980
1970
w
1950 U
1940
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
j 6
0
0 5
0
c�
4
U
O
V
3
2
1
0
Benzene
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-6
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
Chart MW-6 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2010
2005
1990
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
an
0
0 5
0
4
0
0
U
3
2
1
0
Benzene [ND]
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-6-192
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
Chart MW-6-192 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2000
1990
L7
1960
—4 1950
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
an
0
0 5
0
4
0
0
U
3
2
1
0
Benzene
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes
(Groundwater Elevation
Monitoring Well MW-7
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Well Dry, No Sample Collected
I
rl
rl
rl
�--i
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
-
rl
rl
rl rl
Chart MW-7 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2090
2089
2088
2087
2086
w
0
2085
a�
W
2084
c�
•a
2083 c
0
0
L7
2082
2081
2080
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
.� 6
wo
0
0 5
0
0
4
0
0
U
3
2
1
0
Benzene [ND]
--&-Ethylbenzene [ND]
f Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-12-25
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
Chart MW-12-25 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2040
2030
2020 w
0
0
W
2010
0
7:
2000
1990
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
on
0
c 5
0
4
0
0
U
3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-13-35
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-35 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2020
2010
Si:
u
1990
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
on
0
c 5
0
0
4
0
0
U
3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-13-132
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-132 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2010
2000
1990
it
0
1980
W
0
1970
0
0
0
1960
—4 1950
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
aio
0
5
e�
s.
a�
4
c>
0
U 3
2
1
0
Benzene [ND]
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-17-60
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-60 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1920
1910
1900 w
1870
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
o1 6
0 5
6
4
u
0
v
3
2
1
0
Benzene [ND]
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes
(Groundwater Elevation
Monitoring Well MW-17-137
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-137 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1920
1910
1900
1870
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
ao
0
c 5
0
0 4
0
0
U
3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-18-78
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-18-78 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1910
1900
1890
1870
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
aio
0 5
0
s.
4
c>
0
0
U 3
2
1
0
Benzene
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-19-75
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-75 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1910
1900
1890
w
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
�1 6
an
0
c
0 5
0
s.
4
c>
0
0
U
3
2
1
0
Benzene [ND]
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-19-110
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-110 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1910
1900
1890
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0
0
0 5
c�
0
4
U
O
V
3
2
1
0
Benzene
tEthylbenzene [ND]
f Toluene
Total Xylenes
(Groundwater Elevation
Monitoring Well MW-21-21
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-21 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1910
1900
G7
1870
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
wo
0
c 5
0
0 4
0
0
U
3
2
1
0
Benzene [ND]
tEthylbenzene [ND]
(Toluene [ND]
Total Xylenes [ND]
(Groundwater Elevation
Monitoring Well MW-21-94
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-94 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
1910
1900
L7
1870
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
j 6
0
0 5
0
c�
4
U
O
V
3
2
1
0
Benzene
--&-Ethylbenzene [ND]
Toluene
tTotal Xylenes [ND]
(Groundwater Elevation
Monitoring Well DPL-2
Detected Petroleum Hydrocarbons
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
kr�
1
r
00
0�
O .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart DPL-2 (BTEX) of GW Hydrocarbon Trend Plots for OBCLF 14175-03
2040
2030
2010 U
2000
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
W
5
s~
0
0 4
C
0 3
U
2
1
0
0
rl
O
N
M
N
rl
Monitoring Well MW-B
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
tChlorobenzene
f 1,2-Dichlorobenzene[ND]
f 1,4-Dichlorobenzene
(Groundwater Elevation
rl N
M
R
V7
�D
l�
00
O\
O r-I
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
rl rl
rl
�--i
�--i
rl
rl
rl rl
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-B (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1970
1965
1960
1955
w
s~
0
1950
W
1945
s~
s°.
1940 �
1935
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
U 10
Monitoring Well MW-3
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O O O O O O O O O O O
N N N N N N N N N N N
M M M M M M M M M M M
N N N N N N N N N N N
Chart MW-3 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1950
1940
1930
w
1920
0
0
1910 W
a�
.o
0
1900 0
'i.
1890
1880
N
N
O
N
rl
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

Monitoring Well MW-4
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
30
25
20
.-,
15
0
0
10
0
0
rl
rl
rl
rl
rl
N
N
N
N
N
rl
M
rl
M
rl
M
rl
M
.--
M
N
rl
N
rl
N
rl
N
rl
N
e--i
Chart MW-4 (CB) of GW Chlorinated
Benzenes Trend Plots for
OBCLF 14175-03
O O O O O O O
N N N N N N N
M M M M M M M
N N N N N N N
1970
1960
1950
w
1940
0
1930 W
a�
c�
.o
0
1920 0
�.
1910
1900
N
N
O
N
rl
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

150
140
130
120
110
100
90
80
0
70
0
60
50
0
U 40
30
20
10
0
t Chlorobenzene
--0--1,2-Dichlorobenzene
f 1,4-Dichlorobenzene
—*--Groundwater Elevation
Monitoring Well MW-4A
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
2025
2020
2015
2010
w
2005 0
0
0
2000 W
0
1995 .�
0
0
s°.
1990
1985
EMY-1l1
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
M
M
M
M
M
M
M
M
M
M
M
M
M
N
N
N
N
N
N
N
N
N
N
N
N
N
Prepared By: RLB/TAO
Chart MW-4A (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03 Checked By: RLB

Monitoring Well MW-5
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
30
25
20
0
rl
rl
rl
rl
rl
N
N
N
N
N
rl
M
rl
M
rl
M
rl
M
.--
M
N
rl
N
rl
N
rl
N
rl
N
e--i
Chart MW-5 (CB) of GW Chlorinated
Benzenes Trend Plots for
OBCLF 14175-03
O O O O O O O
N N N N N N N
M M M M M M M
N N N N N N N
1L• :111
1975
1olff
1965
w
0
1960
W
s.
1955
.o
0
0
1950 �o
C7
1945
1940
N
N
O
N
rl
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
.-,
15
0
0
10
0
5
0
t Chlorobenzene
-40--1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
f Groundwater Elevation
Monitoring Well MW-6
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
rl
rl
rl
rl
rl
N
N
N
N
N
rl
rl
rl
rl
.--
M
M
M
M
M
N
N
N
N
N
rl
rl
rl
rl
e--i
Chart MW-6 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
O O
O
O
O
O O
N N
N
N
N
N N
M M
M
M
M
M M
N N
N
N
N
N N
W411101
2005
0
0
2000
W
0
0
0
1995
1990
N
N
O
N
rl
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
5
0
4
C
0 3
U
2
1
0
0
rl
O
N
M
N
rl
Monitoring Well MW-6-192
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
2000
t Chlorobenzene
f 1,2-Dichlorobenzene [ND]
1995
f 1,4-Dichlorobenzene
(Groundwater Elevation
1990
1985
1980
1975
1970
1965
0
1960
1955
�— - `
1950
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
rl rl
rl
�--i
�--i
rl
rl
rl rl
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-6-192 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

25
20
15
00
0
10
0
,e
5
Chlorobenzene
-40--1,2-Dichlorobenzene[ND]
41--1,4-Dichlorobenzene
(Groundwater Elevation
Monitoring Well MW-7
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Well Dry, No Sample Collected
0
I
rl
rl
rl
�--i
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-7 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
—I 2090
2089
2088
2087
2086
2085
2084
2083
0
2082
2081
2080
N
N
O
N
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
W
V 10
Monitoring Well MW-12-25
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O O O O O O O O O O O
N N N N N N N N N N N
M M M M M M M M M M M
N N N N N N N N N N N
Chart MW-12-25 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
2040
2035
2030
2025
2020
0
2015
W
2010
2005
0
C7
2000
1995
1990
N
N
O
N
rl
M
N
rl
Prepared
By: RLB/TAO
Checked By: RLB

100
90
80
70
60
50
0
40
0 30
U
20
10
0
Chlorobenzene
f 1,2-Dichlorobenzene
f 1,4-Dichlorobenzene
—*--Groundwater Elevation
Monitoring Well MW-13-35
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-35 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
KINII
2015
2010
P
2005 ,o
0
a�
W
s�
2000
0
s�
C7
1995
1990
N
N
O
N
rl
M
N
rl
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
5
0
4
C
0 3
U
2
1
0
+Chlorobenzene [ND]
1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
f Groundwater Elevation
Monitoring Well MW-13-132
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
rl
N
M
k
r
00
0�
O —I
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-13-132 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
2010
2000
1990
0
1980
W
e�
1970
0
0
s.
I.
u
1960
—4 1950
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
W
5
0
4
C
0 3
U
2
1
0
—+--Chlorobenzene [ND]
1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
(Groundwater Elevation
Monitoring Well MW-17-60
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
o
N
M
IT
k
r
00
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-60 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1920
1910
1900
1890
W
1880
0
A
1870
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
5
0
4
C
0 3
U
2
1
0
—*--Chlorobenzenee [ND]
1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
(Groundwater Elevation
Monitoring Well MW-17-137
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
o
N
M
IT
k
r
00
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-17-137 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1920
1910
1900
0
1890
W
e�
1880
0
0
s.
I.
u
1870
—4 1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
wo
0 5
0
4
0
U
3
2
1
0
0
O
N
M
N
Monitoring Well MW-18-78
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
1910
Chlorobenzene
�1,2-Dichlorobenzene
1905
f 1,4-Dichlorobenzene
1900
f Groundwater Elevation
1895
1890
w
0
1885
W
1880
0
3
1875
0
L7
1870
1865
1860
-0 (14
M
Itt
W�
r
00
O)
O
O O
O
O
O
O
O
O
O
O O
N N
N
N
N
N
N
N
N
N N
M M
M
M
M
M
M
M
M
M M
N N
N
N
N
N
N
N
N
N N
Chart MW-18-78 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
Monitoring Well MW-19-75
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
rl N —I
O O O O O O O O O O O
N N N N N N N N N N N
M M M M M M M M M M M
N N N N N N N N N N N
Chart MW-19-75 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
w
1885
W
1880
0
1875
0
1870
1865
1860
N
N
O
N
M
N
Prepared
By: RLB/TAO
Checked By: RLB

10
9
8
7
^ 6
W
wo
0
0 5
0 4
0
0
U 3
2
1
0
--$--Chlorobenzene [ND]
1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
(Groundwater Elevation
Monitoring Well MW-19-110
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
o
N
M
'IT
k
r
00
0�
o .0
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-19-110 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
0
0
1885
W
1880
1875
0
0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

100
90
80
70
�1 60
wo
0 50
0
40
0
U
30
20
10
0
Chlorobenzene
--&-1,2-Dichlorobenzene
f 1,4-Dichlorobenzene
f Groundwater Elevation
Monitoring Well MW-21-21
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-21 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
w
0
1885
e�
1880
0
1875
0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

10
9
8
7
6
0
c
0 5
e�
s.
u 4
0
0
U
3
2
1
0
Monitoring Well MW-21-94
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
+ Chlorobenzene
-40--1,2-Dichlorobenzene [ND]
f 1,4-Dichlorobenzene
(Groundwater Elevation
Koo- F
O
rl
N
M
7
V1
K)
l--
00
0�
O —I
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart MW-21-94 (CB) of GW Chlorinated Benzenes Trend Plots for OBCLF 14175-03
1910
1905
1900
1895
1890
1885
1880 W
1875 ^�
0
1870
1865
1860
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

30
25
20
5
Chlorobenzene
-41-1,2-Dichlorobenzene
f 1,4-Dichlorobenzene
f Groundwater Elevation
Monitoring Well DPL-2
Detected Chlorinated Benzenes
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
0
N
N
N
N
N
M
M
M
M
M
N
N
N
N
N
Chart DPL-2 (CB) of GW Chlorinated
Benzenes Trend Plots for
OBCLF 14175-03
O O
O
O
O
O O
N N
N
N
N
N N
M M
M
M
M
M M
N N
N
N
N
N N
2045
2040
2035
2030
2025
0
2020 ,�
W
a.
2015
0
2010 U
2005
2000
N
N
O
N
M
N
Prepared By: RLB/TAO
Checked By: RLB

100
90
80
70
a 60
an
0 50
s.
40
C
0
U
30
20
10
0
Acetone
f1,2-Dichloropropane [ND]
0-- 2-Butanone
t4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-B
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
1970
1960
1950 c
c�
W
c�
1940
0
A
+ 1930
Chart MW-B (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

160
140
120
100
0 80
s.
60
0
U
40
20
Acetone
1,2-Dichloropropane [ND]
'9-2-Butanone [ND]
t4-Methyl-2-Pentanone [ND]
1,4-Dioxane
—*--Groundwater Elevation
0
O
N
O
N
O
N
O
N
O
N
rl
M
rl
M
rl
M
rl
M
�
M
N
N
N
N
N
Chart MW-3 (Other)
of GW Other
VOC Trend Plots for OBCLF
14175-03
Monitoring Well MW-3
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O O
O
O
O
O O
N N
N
N
N
N N
�--i
rl
rl
rl rl
M M
M
M
M
M M
N N
N
N
N
N N
0
rl
rl rl
1950
1940
1930
1920
0
0
c�
1910
W
c�
1900
0
0
1890
+ 1880
N
N
O
N
M
N
rl
A
Prepared By: TAO
Checked By: RLB

300
iAT'J11!
200
° 100
v
50
Monitoring Well MW-4
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Acetone
1,2-Dichloropropane [ND]
f2-Butanone [ND]
f4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
- 1960
- 1950
1940
1930 c
1920
°
1910
O
O
O
O
O
O
O
O
O
O
O
O
O
N
N
N
N
N
N
N
N
N
N
N
N
N
M
M
M
M
M
M
M
M
M
M
M
M
M
N
N
N
N
N
N
N
N
N
N
N
N
N
rl
rl
rl
rl
-
rl
rl
rl
rl
rl
Prepared By: TAO
Chart MW-4 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03 Checked By: RLB

Monitoring Well MW 4 (Rescaled)
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
100
90
80
70
60
an
c 50
e�
s.
40
U
O
U
30
20
10
0
1,2-Dichloropropane [ND]
f2-Butanone [ND]
--W-4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
1960
1950
1940
1930 c
L
1920
0
0
0
7:
1910
+ 1900
Chart MW-4 (Other) (2) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

3500
3000
04.11111
wo2000
u
1000
500
Acetone
1,2-Dichloropropane [ND]
f 2-Butanone
4-Methyl-2-Pentanone
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-4A
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
1-1
-
rl
rl
rl rl
2030
2020
Pi.
u
1990
Chart MW-4A (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

500
450
400
350
300
0 250
c�
200
C
0
U
150
100
50
0
i i i
t1,2-Dichloropropane [ND]
4-Methyl-2-Pentanone
t 1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-4A (Rescaled)
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
2030
2020
2010 c
W
a�
2000
0
s.
I.
u
1990
+ 1980
Chart MW-4A (Other) (2) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
a 60
a
0 50
c�
40
C
0
U
30
20
10
0
1,2-Dichloropropane [ND]
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-4A (Rescaled - 2)
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
1-1
—
rl
rl
rl rl
2030
2020
I.
u
1990
Chart MW-4A (Other) (3) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
60
on
0 50
s.
40
0
0
L�
30
20
10
0
tAcetone
f 1,2-Dichloropropane [ND]
IF2-Butanone [ND]
--W-4-Methyl-2-Pentanone [ND]
--+-1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-5
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
1980
1975
1970
1950
1945
+ 1940
Chart MW-5 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
W 60
aA
0
0 50
40
C
0
U
30
20
10
0
0
rl
O
N
M
N
rl
Monitoring Well MW-6
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Acetone
f1,2-Dichloropropane [ND]
IF2-Butanone [ND]
t4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
2010
2005
1995 L7
1990
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
rl
M
rl
M
rl
M
�--i
M
�--i
M
M
M
rl
M
rl
M
rl
M
rl
M
rl
M
N
N
N
N
N
N
N
N
N
N
e4
N
N
Chart MW-6 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

0,
14
12
10
4
2
Acetone
—410--1,2-Dichloropropane [ND]
f2-Butanone [ND]
--W-4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-6-192
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
0
O
N
O
N
O
N
O
N
O
N
rl
M
rl
M
rl
M
rl
M
�
M
N
N
N
N
N
Chart MW-6-192 (Other)
of GW Other
VOC Trend Plots for OBCLF
14175-03
O O
O
O
O
O O
N N
N
N
N
N N
�--i
rl
rl
rl rl
M M
M
M
M
M M
N N
N
N
N
N N
0
rl
rl rl
2000
1990
1980
7:
1960
+ 1950
Prepared By: TAO
Checked By: RLB

50
45
40
35
a 30
aA
0 25
20
0
0
U
15
10
5
0
Acetone
f1,2-Dichloropropane [ND]
f 2-Butanone
t4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-7
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Well Dry, No Sample Collected
I
rl
rl
rl
�--i
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
-
rl
rl
rl rl
2090
2089
2088
2087
P
2086
0
2085
a�
W
2084
0
2083 c
L�
2082
2081
2080
N
N
O
N
M
N
rl
Chart MW-7 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

10
9
8
7
W 6
0
0 5
s.
u
4
0
0
U
3
2
1
0
i
tAcetone [ND]
f 1,2-Dichloropropane [ND]
f 2-Butanone [ND]
—0-4-Methyl-2-Pentanone [ND]
--*--1,4-Dioxane [ND]
(Groundwater Elevation
Monitoring Well MW-12-25
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
.--i
.--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
2040
2035
2030
2025
2020 w
0
2015
W
s.
2010
2005 0
2000
1995
1990
N
N
O
N
M
N
rl
Chart MW-12-25 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

10
9
8
7
a 6
0 5
s.
u
4
C
0
U 3
2
1
0
Acetone [ND]
1,2-Dichloropropane
f 2-Butanone [ND]
t4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane [ND]
—*--Groundwater Elevation
Monitoring Well MW-13-35
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
2020
2010
w
0
W
u
+ 1990
Chart MW-13-35 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

10
9
8
7
W 6
0 5
s.
4
u
C
0
U
3
2
1
0
Acetone [ND]
1,2-Dichloropropane
f2-Butanone
--W-4-Methyl-2-Pentanone [ND]
—+--1,4-Dioxane [ND]
(Groundwater Elevation
Monitoring Well MW-13-132
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
2010
2000
1990 V
r-
w
0
1980
a�
W
I.
u
1960
+ 1950
Chart MW-13-132 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
W 60
an
0 50
s.
40
C
0
U
30
20
10
0
Acetone
-40--1,2-Dichloropropane [ND]
f 2-Butanone
-40--4-Methyl-2-Pentanone [ND]
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-17-60
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
1920
1910
1900
w
1870
+ 1860
N
N
O
N
M
N
rl
A6
Chart MW-17-60 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
W 60
an
0
0 50
s.
40
C
0
U
30
20
10
0
Acetone
-40--1,2-Dichloropropane [ND]
f2-Butanone [ND]
f4-Methyl-2-Pentanone [ND]
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-17-137
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
1920
1910
1900
w
0
1890
W
1880 "o
0
1870
+ 1860
N
N
O
N
M
N
rl
'7:
Chart MW-17-137 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
W 60
0
0 50
s.
40
C
0
U
30
20
10
0
0
rl
O
N
M
N
rl
Monitoring Well MW-18-78
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Acetone
-41-1,2-Dichloropropane [ND]
f2-Butanone [ND]
--W-4-Methyl-2-Pentanone [ND]
1,4-Dioxane
(Groundwater Elevation
ot
1900
1890
1860
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
O
N
rl
M
rl
M
rl
M
�--i
M
�--i
M
M
M
rl
M
rl
M
rl
M
rl
M
rl
M
N
N
N
N
N
N
N
N
N
N
N
N
Chart MW-18-78 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

160
140
120
100
40
20
tAcetone
1,2-Dichloropropane [ND]
A-2-Butanone [ND]
-40--4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
—*--Groundwater Elevation
Monitoring Well MW-19-75
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
0
O
N
O
N
O
N
O
N
O
N
rl
M
rl
M
rl
M
rl
M
�
M
N
N
N
N
N
Chart MW-19-75 (Other)
of GW Other
VOC Trend Plots for OBCLF
14175-03
O O
O
O
O
O O
N N
N
N
N
N N
�--i
rl
rl
rl rl
M M
M
M
M
M M
N N
N
N
N
N N
0
rl
rl rl
1910
1900
1890
1870
+ 1860
N
N
O
N
M
N
rl
I.
u
Prepared By: TAO
Checked By: RLB

100
90
80
70
a 60
an
0 50
s.
40
0
U
30
20
10
0
i
Acetone
1,2-Dichloropropane [ND]
f2-Butanone [ND]
--&-4-Methyl-2-Pentanone [ND]
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-19-110
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
rl
rl
rl rl
1910
1900
1870
+ 1860
N
N
O
N
M
N
rl
i
Chart MW-19-110 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
a 60
0
0 50
s.
40
0
0
U
30
20
10
0
i
Acetone
1,2-Dichloropropane [ND]
f 2-Butanone [ND]
t4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
—*--Groundwater Elevation
Monitoring Well MW-21-21
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
rn
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
—
—
—
rl
rl
rl rl
1910
1900
C7
1870
+ 1860
N
N
O
N
M
N
rl
Chart MW-21-21 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
W 60
an
0 50
s.
40
C
0
U
30
20
10
0
Acetone
-41*-1,2-Dichloropropane [ND]
IF2-Butanone [ND]
f4-Methyl-2-Pentanone [ND]
1,4-Dioxane
(Groundwater Elevation
Monitoring Well MW-21-94
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
e4
N
N
eq
N
eq
N
N
N
N
N
N
eq
N
eq e4
N N
rl
rl
rl
rl
1-1
-
-
-
rl
rl
rl rl
1900
1895
1885
+ 1880
N
N
O
N
M
N
rl
Chart MW-21-94 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

10
9
8
7
a 6
0 5
s.
u
4
C
0
U
3
2
1
0
i i i
Acetone [ND]
-40--1,2-Dichloropropane [ND]
f2-Butanone [ND]
t4-Methyl-2-Pentanone [ND]
—*--Groundwater Elevation
Monitoring Well DPL-2
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
I
rl
rl
rl
�--i
.--i
rl
rl
rl
rl
N N
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
�--i
�--i
rl
rl
rl rl
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
-
rl
rl
rl rl
2040
2035
W
2025
c
0
0
2020
OW-TIM
N
N
O
N
M
N
rl
Ai
Chart DPL-2 (Other) of GW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

APPENDIX E
SURFACE WATER VOC TREND PLOTS
[1 VOC CATEGORY]

100
90
80
70
60
bA
0 50
s.
40
C
0
U
30
20
10
0
tAcetone [ND]
—0--1,2-Dichloropropane [ND]
f2-Butanone [ND]
f4-Methyl-2-Pentanone [ND]
—0--1,4-Dioxane [ND]
�1,4-Dioxane NC2B Standard
Surface Water Location SW-1
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N
N N
rl
rl
rl
rl
-
rl
rl
rl
rl rl
Prepared By: TAO
Chart SW-1 (Other) of SW Other VOC Trend Plots for OBCLF 14175-03 Checked By: RLB

100
90
80
70
60
U
30
20
10
0
tAcetone [ND]
—40--1,2-Dichloropropane [ND]
f2-Butanone [ND]
-40--4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane [ND]
�1,4-Dioxane NUB Standard
Surface Water Location SW-2
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart SW-2 (Other) of SW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
U
30
20
10
0
---Acetone [ND]
—40--1,2-Dichloropropane [ND]
f2-Butanone [ND]
f4-Methyl-2-Pentanone [ND]
1,4-Dioxane
�1,4-Dioxane NC2B Standard
Surface Water Location SW-2A
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
00
01
O 1-1
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart SW-2A (Other) of SW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
U
30
20
10
0
tAcetone
t 1,2-Dichloropropane [ND]
f2-Butanone [ND]
-40--4-Methyl-2-Pentanone [ND]
t 1,4-Dioxane
�1,4-Dioxane NC2B Standard
Surface Water Location SW-3
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
00
01
O 1-1
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N N
Chart SW-3 (Other) of SW Other VOC Trend Plots for OBCLF 14175-03
Prepared By: TAO
Checked By: RLB

100
90
80
70
U
30
20
10
0
tAcetone
1,2-Dichloropropane [ND]
f2-Butanone [ND]
-40--4-Methyl-2-Pentanone [ND]
1,4-Dioxane
�1,4-Dioxane NUB Standard
Surface Water Location SW-4
Other Detected VOCs
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
00
ON
O
-1 N
O
O
O
O
O
O
O
O
O
O
O
O O
N
N
N
N
N
N
N
N
N
N
N
N N
M
M
M
M
M
M
M
M
M
M
M
M M
N
N
N
N
N
N
N
N
N
N
N
N N
Prepared By: TAO
Chart SW-4 (Other) of SW Other VOC Trend Plots for OBCLF 14175-03 Checked By: RLB

APPENDIX F
INPUT PARAMETERS FOR NASP
[NOVEMBER 2019 TO OCTOBER 2021]

TABLE F-1
Input Parameters for the Natural Attenuation Screening Protocol (NASP) - November 2019 Event
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Background Well Downgradient Wells
Test
MW-2
MW-B
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7 MW-12-25
MW-13-35
MW-13-
132
MW-15
MW-17-60
MW-17-
137
MW-17-
310
MW-18-78
MW-19-75
MW-19-
110
MW-21-
21
MW-21-
94
MW-24-
45
MW-24-
160
DPL-1
Dissolved Oxygen (mg/L)
4.7
0.4
0.4
0.3
0.9
0.6
0.5
0.8
0.3 3.1
0.5
1.2
9.9
1.1
0.6
0.4
0.4
0.2
0.5
0.4
1
Dry
1.1
Dry
Nitrate (mg/L)
<0.04
NT
NT
<0.04
NT
NT
<0.04
NT
NT
NT
NT
<0.04
NT
NT
NT
NT
0.049
<0.04
<0.04
<0.04
<0.04
Dry
0.043
Dry
Iron II (mg/L) (Field Measurement)
-
NT
NT
2.5
NT
NT
4.0
NT
NT
NT
NT
3.5
NT
NT
NT
NT
3.5
NT
2.5
4.5
4.5
Dry
NT
Dry
Sulfate (mg/L)
3.11
NT
NT
27.9
NT
NT
2.03
NT
NT
NT
NT
9.4
NT
NT
NT
NT
2.3
15.6
14.3
26.3
2.88
Dry
23.1
Dry
Sulfide (mg/L)
<0.10
NT
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Methane (µg/L)
0.078
NT
NT
990
NT
NT
2900
NT
NT
NT
NT
670
NT
NT
NT
NT
1300
240
200
960
1900
Dry
0.46 J
Dry
Oxidation reduction Potential (ORP)(mv)
118.3
58.7
-46.2
-20.4
-61.1
-21.2
-27
72.3
70.4
188
206.5
-33.3
-66.5
56.2
-172.7
17.5
46
-13.1
-7.5
-36.5
42.2
Dry
27.9
Dry
pH (standard units)
6.3
6.4
6.4
6.3
6.3
6.5
6.2
6.2
5.6
6.4
5.7
7.2
12.6
6.7
7.3
8.6
6.3
6.3
7.6
6.4
6.7
Dry
7.3
Dry
TOC (mg/L)
<1.0
NT
NT
9.21
NT
NT
15.1
NT
NT
NT
NT
1.08
NT
NT
NT
NT
7.72
11.9
1.97
16
9.39
Dry
1.1
Dry
Temperature (C°)
15.5
13.5
15.6
12.7
16.4
12.6
10.6
9.5
13.3
11.3
9.5
9.9
12.4
13.5
13.6
13.6
15.9
15.4
15.1
14.5
11.5
Dry
12
Dry
Carbon Dioxide (mg/L)
60
NT
NT
470
NT
NT
450
NT
NT
NT
NT
46
NT
NT
NT
NT
260
340
7
370
130
Dry
4.4 J
Dry
Alkalinity (mg/L)
59.8
NT
NT
397
NT
NT
494
NT
NT
NT
NT
153
NT
NT
NT
NT
284
386
155
639
303
Dry
55.6
Dry
Chloride (mg/1)
2.19
NT
NT
63.4
NT
NT
147
NT
NT
NT
NT
5.55
NT
NT
NT
NT
138
160
39.6
95
109
Dry
7.04
Dry
Hydrogen (nM)
50
NT
NT
37
NT
NT
59
NT
NT
NT
NT
40
NT
NT
NT
NT
32
38
22
190
30
Dry
100
Dry
Lactic Acid (mg/1)
<0.20
NT
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
0.056 J
<0.20
<0.20
Dry
<0.20
Dry
Acetic Acid (mg/1)
<0.10
NT
NT
0.046 J
NT
NT
0.04 J
NT
NT
NT
NT
0.17
NT
NT
NT
NT
<0.10
0.037 J
0.032 J
0.046 J
0.094 J
Dry
0.039 J
Dry
Propionic Acid (mg/1)
<0.10
NT
NT
0.0044 J
NT
NT
<0.10
NT
NT
NT
NT
0.045 J
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
0.0032 J
Dry
<0.10
Dry
Formic Acid (mg/1)
0.15 J
NT
NT
0.22 J
NT
NT
0.16 J
NT
NT
NT
NT
0.18 J
NT
NT
NT
NT
0.14 J
0.16 J
0.44 J
0.7
1.7
Dry
0.25 J
Dry
Butyric Acid (mg/1)
<0.10
NT
NT
0.02 J
NT
NT
<0.10
NT
NT
NT
NT
0.063 J
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Pyruvic Acid (mg/1)
<0.10
NT
NT
0.01 J
NT
NT
0.021 J
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
0.013 J
0.015 J
<0.10
0.03 J
0.024 J
Dry
<0.10
Dry
i-Pentanoic Acid (mg/1)
<0.10
NT
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
Pentanoic Acid (mg/1)
<0.10
NT
NT
<0.10
NT
NT
<0.10
NT
NT
NT
NT
<0.10
NT
NT
NT
NT
<0.10
<0.10
<0.10
<0.10
<0.10
Dry
<0.10
Dry
i-Hexanoic Acid (mg/1)
<0.20
NT
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
<0.20
<0.20
<0.20
Dry
<0.20
Dry
Hexanoic Acid (mg/1)
<0.20
NT
NT
<0.20
NT
NT
<0.20
NT
NT
NT
NT
<0.20
NT
NT
NT
NT
<0.20
<0.20
<0.20
<0.20
<0.20
Dry
<0.20
Dry
Benzene (µg/1)
<1.0
<1.0
1.1
<1.0
4.0
<1.0
1.1
<1.0
1.6
<1.0
1.4
1.2
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1.7
<1.0
Dry
<1.0
Dry
Toluene (µg/1)
<1.0
<1.0
<1.0
<1.0
1.6
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Ethylbenzene (µg/1)
<1.0
<1.0
<1.0
<1.0
2.9
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Xylenes (µg/1)
<1.0
<1.0
<1.0
<1.0
4.9
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Total BTEX (µg/l)
ND
ND
1.1
ND
13.4
ND
1.1
ND
1.6
ND
1.4
1.2
ND
ND
ND
ND
ND
ND
ND
1.7
ND
Dry
ND
Dry
PCE (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
TCE (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1.1
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
cis-1,2-Dichloroethene (µg/1)
<1.0
12.7
1.3
15.6
<1.0
<1.0
<1.0
<1.0
21.6
<1.0
2.9
9.0
<1.0
1.1
<1.0
<1.0
<1.0
<1.0
<1.0
5.3
2.2
Dry
<1.0
Dry
trans-1,2-Dichlorethene (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
DCE Detected?
ND
Yes
Yes
Yes
ND
ND
ND
ND
Yes
ND
Yes
Yes
ND
Yes
ND
ND
ND
ND
ND
Yes
Yes
Dry
ND
Dry
VC (µg/1)
<1.0
5.8
1.3
2.3
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1.3
<1.0
Dry
<1.0
Dry
1,1,1-Trichloroethane (µg/l)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
1,1-DCA+1,2-DCA (µg/1)
ND
1.2
3.9
7.6
ND
ND
1.9
ND
4.4
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
2.5
ND
Dry
ND
Dry
Carbon Tetrachloride (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Chloroethane (µg/1)
<1.0
<1.0
2.7
<1.0
<1.0
1.1
5.7
<1.0
2.2
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
2.4
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Ethene (µg/L)
0.0067
NT
NT
0.047 J
NT
NT
0.14
NT
NT
NT
NT
0.99
NT
NT
NT
NT
0.032
0.045 J
0.058 J
0.2
0.085 J
Dry
0.0079 J
Dry
Ethane (µg/L)
<0.1
NT
NT
0.14
NT
NT
0.4
NT
NT
NT
NT
0.14
NT
NT
NT
NT
0.42
0.19
0.056 J
0.081 J
0.35
Dry
0.0084 J
Dry
Chloroform (µg/1)
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
Dichloromethane (µg/1)
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Dry
<5.0
Dry
Notes:
1. ND =Non Detected
2. NT =Not Tested
3. MW-2 is the background well
4. J values are estimated concentrations greater than the MDL and less than the PQL
5. Red text indicates detections from resampling event completed between March 2-3, 2020.
14175-03 NASP Input and Summary.xlsx Prepared By: TAO
Table F-1 NASP Input (Nov 19) Checked By: IAI

TABLE F-2
Input Parameters for the Natural Attenuation Screening Protocol (NASP) - April 2020 Event
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Background Well Downgradient Wells
Test
MW-2
MW-B
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7 MW-12-25
MW-13-35
MW-13-
132
MW-15
MW-17-60
MW-17-
137
MW-17-
310
MW-18-78
MW-19-75
MW-19-
110
MW-21-
21
MW-21-
94
MW-24-
45
MW-24-
160
DPL-1
Dissolved Oxygen (mg/L)
5
0.3
1.0
1.2
0.31
0.5
0.9
0.9
0.2 2.15
1.35
0.36
3.1
0.58
1.77
1.53
1.0
0.6
0.7
0.8
0.6
Dry
0.7
Dry
Nitrate (mg/L)
0.014 J
NT
NT
<0.02
NT
NT
<0.02
NT
NT
NT
NT
<0.02
NT
NT
NT
NT
<0.02
<0.02
<0.02
<0.02
<0.02
Dry
<0.02
Dry
Iron II (mg/L) (Field Measurement)
<0.5
NT
NT
2.0
NT
NT
5.0
NT
NT
NT
NT
4.5
NT
NT
NT
NT
4.5
2.5
3.0
3.5
3.0
Dry
<0.5
Dry
Sulfate (mg/L)
2.9
NT
NT
24
NT
NT
1.3
NT
NT
NT
NT
8.2
NT
NT
NT
NT
1.4
14
12
38
2.2
Dry
23
Dry
Sulfide (mg/L)
<1.0
NT
NT
<1.0
NT
NT
<1.0
NT
NT
NT
NT
1.1
NT
NT
NT
NT
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Methane (µg/L)
3.0
NT
NT
0.20 J
NT
NT
1600
NT
NT
NT
NT
240
NT
NT
NT
NT
1400
0.28 J
690
1100
3700
Dry
490
Dry
Oxidation reduction Potential (ORP)(mv)
64.5
-50
-40
21.4
-78
-20.6
45
41.1
-24.9
164.7
225.8
-139.4
-28.3
-82
-99.1
-80.4
-86.3
-39.8
-56.4
-50.8
-32.9
Dry
43
Dry
pH (standard units)
6.3
6.6
6.9
6.2
6.1
6.4
6.2
6.4
5.7
6.4
5.7
7.1
12.4
6.8
7.3
8.4
6.4
6.3
7.6
6.4
6.7
Dry
7.3
Dry
TOC (mg/L)
<1.0
NT
NT
6.2
NT
NT
10
NT
NT
NT
NT
<1.0
NT
NT
NT
NT
7.6
13
2.0
12
7.3
Dry
2.6
Dry
Temperature (C°)
19.4
16.8
15.2
13.8
17.4
13.3
17.1
21.8
15.1
18.9
16.5
18.7
18.8
15.9
18
17
17.8
17.6
16.8
17.4
15.8
Dry
17.6
Dry
Carbon Dioxide (mg/L)
58
NT
NT
4.4 J
NT
NT
120
NT
NT
NT
NT
8.5
NT
NT
NT
NT
360
59
31
220
580
Dry
390
Dry
Alkalinity (mg/L)
61
NT
NT
440
NT
NT
550
NT
NT
NT
NT
150
NT
NT
NT
NT
300
400
160
680
320
Dry
60
Dry
Chloride (mg/1)
2.1
NT
NT
67
NT
NT
140
NT
NT
NT
NT
4.8
NT
NT
NT
NT
130
160
38
50
99
Dry
7.4
Dry
Hydrogen (nM)
51
NT
NT
21
NT
NT
8.2
NT
NT
NT
NT
3.0
NT
NT
NT
NT
4.6
5.0
5.4
7.7
3.6
Dry
27
Dry
Lactic Acid (mg/1)
<0.2
NT
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
<0.2
Dry
<0.2
Dry
Acetic Acid (mg/1)
<0.1
NT
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
<0.1
<0.1
<0.1
<0.1
Dry
0.05 J
Dry
Propionic Acid (mg/1)
0.0014 J
NT
NT
0.0018 J
NT
NT
0.003 J
NT
NT
NT
NT
0.0013 J
NT
NT
NT
NT
0.0036 J
0.004 J
0.0015 J
<0.1
0.0023 J
Dry
0.0048 J
Dry
Formic Acid (mg/1)
<0.5
NT
NT
<0.5
NT
NT
<0.5
NT
NT
NT
NT
<0.5
NT
NT
NT
NT
0.13 J
<0.5
<0.5
<0.5
<0.5
Dry
<0.5
Dry
Butyric Acid (mg/l)
<0.1
NT
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
<0.1
<0.1
<0.1
<0.1
Dry
<0.1
Dry
Pyruvic Acid (mg/1)
<0.1
NT
NT
<0.1
NT
NT
0.016 J
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
0.016 J
0.026 J
<0.1
<0.1
<0.1
Dry
<0.1
Dry
i-Pentanoic Acid (mg/1)
<0.1
NT
NT
<0.1
NT
NT
<0.1
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
0.0085 J
<0.1
<0.1
<0.1
Dry
<0.1
Dry
Pentanoic Acid (mg/1)
<0.1
NT
NT
<0.1
NT
NT
0.052 J
NT
NT
NT
NT
<0.1
NT
NT
NT
NT
<0.1
0.019 J
<0.1
<0.1
0.039 J
Dry
<0.1
Dry
i-Hexanoic Acid (mg/1)
<0.2
NT
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
<0.2
Dry
<0.2
Dry
Hexanoic Acid (mg/1)
<0.2
NT
NT
<0.2
NT
NT
<0.2
NT
NT
NT
NT
<0.2
NT
NT
NT
NT
<0.2
<0.2
<0.2
<0.2
<0.2
Dry
<0.2
Dry
Benzene (µg/1)
<1.0
<1.0
1.6
0.81 J
5.9
0.68 J
1.4
<1.0
1.5
<1.0
1.8
1.8
<1.0
<1.0
<1.0
<1.0
<1.0
0.50 J
<1.0
2.1
<1.0
Dry
<1.0
Dry
Toluene (µg/1)
<1.0
<1.0
<1.0
<1.0
3.3
<1.0
0.40 J
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Ethylbenzene (µg/1)
<1.0
<1.0
<1.0
<1.0
11
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Xylenes (µg/1)
<1.0
<1.0
0.98 J
<1.0
19
<1.0
<1.0
<1.0
0.42 J
<1.0
<1.0
<1.0
<1.0
<1.0
0.46 J
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Total BTEX (µg/l)
ND
ND
2.58 J
0.81 J
39.2
0.68 J
1.8 J
ND
1.92 J
ND
1.8
1.8
ND
ND
0.46 J
ND
ND
0.5 J
ND
2.1
ND
Dry
ND
Dry
PCE (µg/1)
<1.0
<l.l
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
TCE (µg/1)
<1.0
<1.0
0.73 J
<1.0
<1.0
<1.0
<1.0
0.81 J
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
0.43 J
<1.0
<1.0
Dry
<1.0
Dry
cis-1,2-Dichloroethene (µg/1)
<1.0
23
0.99 J
15
1.2
<1.0
0.60 J
<1.0
19
<1.0
3.1
8.4
<1.0
1.8
<1.0
<1.0
0.99 J
<1.0
0.46 J
6.5
2.5
Dry
<1.0
Dry
trans-1,2-Dichlorethene (µg/1)
<1.0
<1.0
<1.0
<1.0
0.46 J
<1.0
<1.0
<1.0
<1.0
<1.0
0.40 J
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
DCE Detected?
ND
Yes
Yes
Yes
Yes
ND
Yes
ND
Yes
ND
Yes
Yes
ND
Yes
ND
ND
Yes
ND
Yes
Yes
Yes
Dry
ND
Dry
VC (µg/1)
<5.0
7.7
0.91 J
2.3
1.2
<5.0
<5.0
<5.0
<5.0
<5.0
0.64 J
2.3
<5.0
0.78 J
0.52 J
<5.0
0.58 J
<5.0
<5.0
1.6
0.92 J
Dry
<5.0
Dry
1,1,1-Trichloroethane (µg/l)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
1,1-DCA+1,2-DCA (µg/1)
ND
1.7
3.27 J
8.39 J
ND
0.68 J
2.5
0.69 J
3.2
ND
ND
1.2
ND
1.2
0.8 J
ND
0.96 J
0.69 J
ND
2.9
1.28 J
Dry
ND
Dry
Carbon Tetrachloride (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Chloroethane (µg/1)
<2.0
0.65 J
3.4
2
<2.0
1.2 J
4.2
0.77 J
2.4
<2.0
<2.0
<2.0
<2.0
<2.0
0.49 J
<2.0
0.70 J
<2.0
0.58 J
<2.0
2.8
Dry
<2.0
Dry
Ethene (µg/L)
0.024 J
NT
NT
0.059 J
NT
NT
0.21
NT
NT
NT
NT
0.057 J
NT
NT
NT
NT
0.3
0.019 J
1.6
0.068 J
0.28
Dry
0.14
Dry
Ethane (µg/L)
<0.1
NT
NT
<0.1
NT
NT
0.38
NT
NT
NT
NT
0.072 J
NT
NT
NT
NT
0.078 J
<0.1
0.16
0.39
0.7
Dry
0.11
Dry
Chloroform (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Dichloromethane (µg/1)
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Dry
<1.0
Dry
Notes:
1. ND =Non Detected
2. NT =Not Tested
3. MW-2 is the background well
4. 7 values are estimated concentrations greater than the MDL and less than the PQL
14175-03 NASP Input and Summary.xlsx Prepared By: TAO
Table F-2 NASP Input (April 20) Checked By: IAI

TABLE F-3
Input Parameters for the Natural Attenuation Screening Protocol (HASP) - October 2020 Event
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Background Well Downgradient Wells
Test
MW-2
MW-B
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7 MW-12-25
MW-13-35
MW-13-
132
MW-15
MW-17-60
MW-17-
137
MW-17-
310
MW-18-78
MW-19-75
MW-19-
110
MW-21-
21
MW-21-
94
MW-24-
45
MW-24-
160
DPL-1
Dissolved Oxygen (mg/L)
1.8
0.2
0.4
0.4
2.7
0.4
0.4
0.6
0.3 1.25
0.5
0.6
5.3
0.5
2.7
0.2
0.3
0.3
0.3
0.4
0.3
Dry
0.5
Dry
Nitrate (mg/L)
0.028
NT
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
<0.025
NT
NT
NT
NT
<0.025
<0.025
<0.025
<0.025
<0.025
Dry
<0.025
Dry
Iron II (mg/L) (Field Measurement)
ND
2.5
NT
6.0
NT
2.5
3.0
3.0
3.0
ND
1.0
7.0
ND
2.0
3.0
ND
3.0
2.0
2.5
7.0
2.0
Dry
1.5
Dry
Sulfate (mg/L)
4.1
NT
NT
21
NT
NT
0.78 J
NT
NT
NT
NT
7.2
NT
NT
NT
NT
1.2
11
9.7
13
2.2
Dry
27
Dry
Sulfide (mg/L)
<0.99
NT
NT
1.3
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
1.2
<1.0
<1.0
1.6
<1.0
Dry
<0.99
Dry
Methane (µg/L)
7.7
NT
NT
720
NT
NT
4700
NT
NT
NT
NT
1400
NT
NT
NT
NT
1700
480
400
1900
2000
Dry
27
Dry
Oxidation reduction Potential (ORP)(mv)
94.1
-52.6
-55.0
-19.0
-40.0
-16.8
-47.1
-33.5
60.1
101.0
68.6
-127.4
-87.8
-105.7
-65.8
-8.1
-54.8
-7.2
-128.5
40.6
-63.9
Dry
-41.4
Dry
pH (standard units)
6.0
6.3
6.4
6.2
6.2
6.3
6.2
6.3
5.6
6.3
5.5
7.1
12.5
6.9
7.3
8.2
6.3
6.2
7.4
6.3
6.6
Dry
7.4
Dry
TOC (mg/L)
<1.0
NT
NT
5.9
NT
NT
11
NT
NT
NT
NT
<1.0
NT
NT
NT
NT
8
14
2.2
12
7.1
Dry
1.1
Dry
Temperature (C°)
20.1
20.5
17.6
18.2
17.9
15
22.6
17.6
11.6
16.5
15.8
17.9
17.6
24.5
19.5
21.7
17.4
16.2
19
16.4
16.1
Dry
19.3
Dry
Carbon Dioxide (mg/L)
30
NT
NT
177
NT
NT
197
NT
NT
NT
NT
281
NT
NT
NT
NT
83.2
141
3.93
165
55.9
Dry
1.43
Dry
Alkalinity (mg/L)
60
NT
NT
420
NT
NT
560
NT
NT
NT
NT
150
NT
NT
NT
NT
300
410
170
640
310
Dry
64
Dry
Chloride (mg/1)
2.1
NT
NT
57
NT
NT
140
NT
NT
NT
NT
4.7
NT
NT
NT
NT
140
160
39
86
89
Dry
6.4
Dry
Hydrogen (nM)
5.4
NT
NT
4.6
NT
NT
20
NT
NT
NT
NT
6.0
NT
NT
NT
NT
6.6
1.4 J
3.6
2.7
5.3
Dry
10
Dry
Lactic Acid (mg/1)
<0.053
NT
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
0.058 J
Dry
Acetic Acid (mg/1)
0.41 J
NT
NT
4.0 J
NT
NT
4.1 J
NT
NT
NT
NT
4.0 J
NT
NT
NT
NT
4.0 J
3.9 J
0.44 J
3.7 J
0.79 J
Dry
0.42 J
Dry
Propionic Acid (mg/1)
<0.053
NT
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
<0.053
Dry
Formic Acid (mg/1)
5.0
NT
NT
48
NT
NT
45
NT
NT
NT
NT
44
NT
NT
NT
NT
46
44.0
4.8
44
9.5
Dry
4.8
Dry
Butyric Acid (mg/1)
<0.058
NT
NT
<0.058
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
<0.058
<0.058
Dry
<0.058
Dry
Pyruvic Acid (mg/1)
<0.060
NT
NT
<0.060
NT
NT
<0.060
NT
NT
NT
NT
<0.060
NT
NT
NT
NT
<0.060
<0.060
<0.060
<0.060
<0.060
Dry
<0.06
Dry
i-Pentanoic Acid (mg/1)
<0.061
NT
NT
<0.061
NT
NT
<0.061
NT
NT
NT
NT
<0.061
NT
NT
NT
NT
<0.061
<0.061
<0.061
<0.061
<0.061
Dry
<0.061
Dry
Pentanoic Acid (mg/1)
<0.056
NT
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
i-Hexanoic Acid (mg/1)
<0.056
NT
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
Hexanoic Acid (mg/1)
0.076 J
NT
NT
0.67 J
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
0.58 J
<0.058
Dry
0.058 J
Dry
Benzene (µg/1)
<0.40
<0.40
0.78 J
0.41 J
2.8
<0.40
0.87 J
<0.40
1.7
<0.40
1.7
1.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
1.8
<0.40
Dry
<0.40
Dry
Toluene (µg/1)
<0.40
<0.40
<0.40
<0.40
1.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Ethylbenzene (µg/1)
<0.40
<0.40
<0.40
<0.40
1.5
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Xylenes (µg/1)
<0.40
<0.40
0.82 J
<0.40
3.2
<0.40
<0.40
<0.40
0.57 J
<0.40
<0.40
<0.40
<0.40
<0.40
0.50 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Total BTEX (µg/l)
ND
ND
1.6 J
0.41 J
8.7
ND
0.87 J
ND
2.27 J
ND
1.7
1.4
ND
ND
0.50 J
ND
ND
ND
ND
1.8
ND
Dry
ND
Dry
PCE (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
TCE (µg/1)
<0.40
<0.40
<0.40
0.64 J
<0.40
<0.40
<0.40
<0.40
0.77 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
cis-1,2-Dichloroethene (µg/1)
<0.40
21
0.84 J
16
<0.40
<0.40
0.49 J
<0.40
25
<0.40
2.9
4.4
<0.40
1.0
<0.40
<0.40
0.85 J
<0.40
0.61 J
5.2
2.4
Dry
<0.40
Dry
trans-1,2-Dichlorethene (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
DCE Detected?
ND
Yes
Yes
Yes
ND
ND
Yes
ND
Yes
ND
Yes
Yes
ND
Yes
ND
ND
Yes
ND
Yes
Yes
Yes
Dry
ND
Dry
VC (µg/1)
<5.0
10
0.79 J
3.0
0.51 J
<0.40
0.44 J
<0.40
<0.40
<0.40
0.53 J
1.6
<0.40
<0.40
0.54 J
<0.40
0.68 J
<0.40
<0.40
2.3
1.1
Dry
<0.40
Dry
1,1,1-Trichloroethane (µg/l)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
1,1-DCA+1,2-DCA (µg/1)
ND
1.7
1.7
7.81 J
ND
0.64 J
2
0.66 J
2.7
ND
ND
0.73 J
ND
0.68 J
0.65 J
ND
0.94 J
0.58 J
ND
3.04 J
1.30 J
Dry
ND
Dry
Carbon Tetrachloride (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Chloroethane (µg/1)
<0.40
0.60 J
2.6
1.9 J
<0.40
0.92 J
3.7
0.75 J
3.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.70 J
<0.40
0.81 J
<0.40
2.5
Dry
<0.40
Dry
Ethene (µg/L)
<0.12
NT
NT
0.46 J
NT
NT
0.3 J
NT
NT
NT
NT
1.8
NT
NT
NT
NT
1.3
0.46 J
<0.12
0.75 J
0.33 J
Dry
0.34 J
Dry
Ethane (µg/L)
<0.075
NT
NT
0.47 J
NT
NT
0.92 J
NT
NT
NT
NT
<0.075
NT
NT
NT
NT
1.1
0.67 J
<0.075
1.1
1.5
Dry
<0.075
Dry
Chloroform (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Dichloromethane (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Notes:
1. ND =Non Detected
2. NT =Not Tested
3. MW-2 is the background well
4. 7 values are estimated concentrations greater than the MDL and less than the PQL
14175-03 NASP Input and Summary.xlsx Prepared By: TAO
Table F-3 NASP Input (Oct 20) Checked By: IAI

TABLE F-4
Input Parameters for the Natural Attenuation Screening Protocol (NASP) - April 2021 Event
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Background Well Downgradient Wells
Test
MW-2
MW-B
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7 MW-12-25
MW-13-35
MW-13-
132
MW-15
MW-17-60
MW-17-
137
MW-17-
310
MW-18-78
MW-19-75
MW-19-
110
MW-21-
21
MW-21-
94
MW-24-
45
MW-24-
160
DPL-1
Dissolved Oxygen (mg/L)
5.3
0.1
0.6
1.03
3.76
0.3
0.5
0.66
0.1 2.8
2.7
0.8
5.37
2.7
0.8
0.4
1.5
0.8
0.6
0.1
0.2
Dry
1.49
1.7
Nitrate (mg/L)
0.027
NT
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
0.028 J
NT
NT
NT
NT
<0.025
0.012 J
<0.025
<0.025
<0.025
Dry
<0.025
NT
Iron II (mg/L)
<0.5
NT
NT
6.0
NT
NT
3.0
NT
NT
ND
ND
6.0
NT
4.5
1.5
ND
5.0
>7.0
2.5
2.5
4.5
Dry
5.0
NT
Sulfate (mg/L)
3.2
NT
NT
<0.2
NT
NT
1.1
NT
NT
NT
NT
7.8
NT
NT
NT
NT
2.2
17
12
23
3.3
Dry
23
NT
Sulfide (mg/L)
1.2
NT
NT
<0.99
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
3.7
<0.99
<0.99
1.5
2.6
Dry
1.8
NT
Methane (µg/L)
5200
NT
NT
3.6 J
NT
NT
680
NT
NT
NT
NT
3.5
NT
NT
NT
NT
450
1400
170
2200
2000
Dry
35
NT
Oxidation reduction Potential (ORP)(mv)
44.2
-133.3
-64.1
-4.7
-29.7
-20.0
-27.2
40.4
36.6
87.0
105.8
-131.4
-100.1
-71.1
-145.1
64.1
-22.0
-8.9
-119.4
-60.8
-71.5
Dry
-94.4
64.1
pH (standard units)
6.1
6.8
6.3
6.0
6.1
6.4
6.1
6.3
5.7
6.6
5.9
6.8
12.8
6.9
7.4
8.5
6.3
6.3
7.5
6.4
6.7
Dry
7.4
7.2
TOC (mg/L)
11
NT
NT
6.3
NT
NT
15
NT
NT
NT
NT
1.1
NT
NT
NT
NT
8.9
12
2.8
15
7.3
Dry
1.4
NT
Temperature (C°)
21.4
16.9
21.8
18.8
22.3
19.1
23.5
18.9
15.9
16.5
17.1
26.2
18.1
20.8
15.9
24.7
15.7
20.0
16.8
17.1
16.9
Dry
19.0
30.2
Carbon Dioxide (mg/L)
17.3
NT
NT
162
NT
NT
179
NT
NT
NT
NT
15.8
NT
NT
NT
NT
121
94.4
3.84
341
77.1
Dry
1.36
NT
Alkalinity (mg/L)
64
NT
NT
450
NT
NT
570
NT
NT
NT
NT
150
NT
NT
NT
NT
300
410
170
770
310
Dry
70
NT
Chloride (mg/1)
2.4
NT
NT
0.32 J
NT
NT
160
NT
NT
NT
NT
5.1
NT
NT
NT
NT
150
150
41
70
98
Dry
6.5
NT
Hydrogen (nM)
120
NT
NT
0.76 J
NT
NT
22
NT
NT
NT
NT
20
NT
NT
NT
NT
<0.49
0.95 J
3.4
8.4
17
Dry
4.2
NT
Lactic Acid (mg/1)
<0.053
NT
NT
<0.11
NT
NT
<0.53
NT
NT
NT
NT
<0.53
NT
NT
NT
NT
<0.53
<0.53
<0.11
<0.53
<0.53
Dry
<0.053
NT
Acetic Acid (mg/1)
0.37 J
NT
NT
0.66 J
NT
NT
2.7 J
NT
NT
NT
NT
2.7 J
NT
NT
NT
NT
2.9 J
2.6 J
0.52 J
3.8 J
2.4 J
Dry
0.27 J
NT
Propionic Acid (mg/1)
<0.053
NT
NT
<0.11
NT
NT
<0.53
NT
NT
NT
NT
<0.53
NT
NT
NT
NT
<0.53
<0.53
<0.11
<0.53
<0.53
Dry
<0.053
NT
Formic Acid (mg/1)
4.6
NT
NT
10
NT
NT
52
NT
NT
NT
NT
48.0
NT
NT
NT
NT
45
53
12
47
49
Dry
5.3
NT
Butyric Acid (mg/1)
<0.058
NT
NT
0.15 J
NT
NT
<0.58
NT
NT
NT
NT
<0.58
NT
NT
NT
NT
<0.58
<0.58
<0.12
<0.58
<0.58
Dry
<0.058
NT
Pyruvic Acid (mg/1)
<0.060
NT
NT
<0.12
NT
NT
<0.60
NT
NT
NT
NT
<0.60
NT
NT
NT
NT
<0.60
<0.60
<0.12
<0.60
<0.60
Dry
<0.060
NT
i-Pentanoic Acid (mg/1)
<0.061
NT
NT
<0.12
NT
NT
<0.61
NT
NT
NT
NT
<0.61
NT
NT
NT
NT
<0.61
<0.61
<0.12
<0.61
<0.61
Dry
<0.061
NT
Pentanoic Acid (mg/1)
<0.056
NT
NT
<0.11
NT
NT
<0.56
NT
NT
NT
NT
<0.56
NT
NT
NT
NT
<0.56
<0.56
<0.11
<0.56
<0.56
Dry
<0.056
NT
i-Hexanoic Acid (mg/1)
<0.056
NT
NT
<0.11
NT
NT
<0.56
NT
NT
NT
NT
<0.56
NT
NT
NT
NT
<0.56
<0.56
<0.11
<0.56
<0.56
Dry
<0.056
NT
Hexanoic Acid (mg/1)
<0.058
NT
NT
<0.12
NT
NT
<0.58
NT
NT
NT
NT
<0.58
NT
NT
NT
NT
<0.58
<0.58
<0.12
<0.58
<0.58
Dry
<0.058
NT
Benzene (µg/1)
<0.40
<0.40
1.6
0.86 J
5.6
0.86 J
1.3
<0.40
2.4
<0.40
1.1
1.0
<0.40
<0.40
<0.40
<0.40
0.53 J
<0.40
<0.40
2.8
<0.40
Dry
<0.40
<0.40
Toluene (µg/1)
<0.40
<0.40
<0.40
<0.40
2.7
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.66 J
<0.40
Dry
<0.40
<0.40
Ethylbenzene (µg/1)
<0.40
<0.40
<0.40
<0.40
6.8
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
Xylenes (µg/1)
<0.40
<0.40
0.89 J
<0.40
12
<0.40
<0.40
<0.40
0.54 J
<0.40
<0.40
<0.40
<0.40
<0.40
0.46 J
<0.40
<0.40
<0.40
<0.40
0.60 J
<0.40
Dry
<0.40
<0.40
Total BTEX (µg/l)
ND
ND
2.49 J
0.86 J
27.1
0.86 J
1.3
ND
2.94 J
ND
1.1
1.0
ND
ND
0.46 J
ND
0.53 J
ND
ND
4.06 J
ND
Dry
ND
ND
PCE (µg/1)
<0.40
0.68 BJ
<0.40
1.2 B
<0.40
<0.40
0.87 BJ
<0.40
<0.40
0.63 BJ
0.66 BJ
0.53 BJ
<0.40
0.54 BJ
0.51 BJ
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
TCE (µg/1)
<0.40
<0.40
<0.40
0.82 J
<0.40
<0.40
<0.40
<0.40
0.60 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.51 J
<0.40
Dry
<0.40
<0.40
cis-1,2-Dichloroethene (µg/1)
<0.40
4.7
0.65 J
16
<0.40
<0.40
1.4
<0.40
20
0.57 J
2.7
2.6
<0.40
2.5
0.61 J
<0.40
0.95 J
<0.40
0.93 J
5.8
2.9
Dry
<0.40
<0.40
trans-1,2-Dichlorethene (µg/1)
<0.40
<0.40
<0.40
<0.40
0.44 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
DCE Detected?
ND
Yes
Yes
Yes
ND
ND
Yes
ND
Yes
Yes
Yes
Yes
ND
Yes
Yes
ND
Yes
ND
Yes
Yes
Yes
Dry
ND
ND
VC (µg/1)
<0.40
2.3
0.72 J
3
1
<0.40
<0.40
<0.40
<0.40
<0.40
0.61 J
0.91 J
<0.40
1.2
0.74 J
<0.40
0.83 J
<0.40
<0.40
2.2
1.2
Dry
<0.40
<0.40
1,1,1-Trichloroethane (µg/l)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
1,1-DCA+1,2-DCA (µg/1)
ND
ND
1.3
7.2
ND
0.51 J
1.8
0.69 J
2.1
ND
ND
ND
ND
1.1
0.78 J
ND
0.98 J
0.47 J
ND
3.23 J
1.62 J
Dry
ND
ND
Carbon Tetrachloride (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
Chloroethane (µg/1)
<0.40
0.61 J
3.2
2
<0.40
1.0 J
3.5
0.65 J
3.4
<0.40
<0.40
<0.40
<0.40
<0.40
0.43 J
<0.40
0.70 J
<0.40
0.87 J
<0.40
2.3
Dry
<0.40
<0.40
Ethene (µg/L)
31
NT
NT
<0.12
NT
NT
<0.12
NT
NT
NT
NT
0.29 J
NT
NT
NT
NT
0.70 J
<0.12
<0.12
0.46 J
0.28 J
Dry
0.36 J
NT
Ethane (µg/L)
1.2
NT
NT
<0.075
NT
NT
0.20 J
NT
NT
NT
NT
0.79 J
NT
NT
NT
NT
<0.075
0.62 J
0.18 J
0.32 J
0.75 J
Dry
<0.075
NT
Chloroform (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
Dichloromethane (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
<0.40
Notes:
1. ND =Non Detected
2. NT =Not Tested
3. MW-2 is the background well
4. 7 values are estimated concentrations greater than the MDL and less than the PQL
5. B values (method blank yielded detections of PCE) are laboratory errors and are presented on this spreadsheet.
14175-03 NASP Input and Summary.xlsx Prepared By: TAO
Table F-4 NASP Input (April 21) Checked By: IAI

TABLE F-5
Input Parameters for the Natural Attenuation Screening Protocol (HASP) - October 2021 Event
Old Buncombe County Landfill
Woodfin, North Carolina
BLE Project Number J20-14175-03
Background Well Downgradient Wells
Test
MW-2
MW-B
MW-3
MW-4
MW-4A
MW-5
MW-6
MW-6-192
MW-7 MW-12-25
MW-13-35
MW-13-
132
MW-15
MW-17-60
MW-17-
137
MW-17-
310
MW-18-78
MW-19-75
MW-19-
110
MW-21-
21
MW-21-
94
MW-24-
45
MW-24-
160
DPL-1
Dissolved Oxygen (mg/L)
6.4
0.3
0.5
0.4
0.8
0.5
0.3
0.4
0.3 0.7
0.3
1
6.4
0.6
0.7
0.5
0.6
0.2
0.4
0.3
0.2
Dry
4.2
Dry
Nitrate (mg/L)
<0.025
NT
NT
<0.025
NT
NT
<0.025
NT
NT
NT
NT
<0.025
NT
NT
NT
NT
<0.025
<0.025
<0.025
<0.025
<0.025
Dry
<0.025
Dry
Iron II (mg/L)
<0.5
NT
NT
2.0
NT
NT
6.0
NT
NT
NT
NT
4.5
NT
NT
NT
NT
4.0
1.5
1.5
7.0
6.5
Dry
0.5
Dry
Sulfate (mg/L)
2.9
NT
NT
24
NT
NT
0.37 J
NT
NT
NT
NT
6.4
NT
NT
NT
NT
1.7
18
8.8
10
2.4
Dry
24
Dry
Sulfide (mg/L)
<0.99
NT
NT
<0.99
NT
NT
<0.99
NT
NT
NT
NT
<0.99
NT
NT
NT
NT
<0.99
<0.99
<0.99
<0.99
<0.99
Dry
<0.99
Dry
Methane (µg/L)
<2.5
NT
NT
270
NT
NT
1200
NT
NT
NT
NT
300
NT
NT
NT
NT
500
190
460
630
830
Dry
7.8
Dry
Oxidation reduction Potential (ORP)(mv)
50.8
-58.2
-40.5
-18.8
-33.6
-29.9
-50
-5.7
40.7
164
179.4
-92.6
0.9
-30.7
-97.2
-17.5
-13.9
-0.6
-103
46.9
-114.9
Dry
4.4
Dry
pH (standard units)
6.7
6.5
6.5
6.3
6.2
6.5
6.2
6.3
5.8
6.4
5.7
7.0
12.5
6.9
7.4
8.5
6.3
6.1
7.3
6.3
6.5
Dry
7.6
Dry
TOC (mg/L)
<1.0
NT
NT
5.3
NT
NT
12
NT
NT
NT
NT
1.1
NT
NT
NT
NT
8.1
11
2.8
11
6.9
Dry
1.3
Dry
Temperature (C°)
14.5
17.7
16
18
20.9
13.8
17.3
18.4
15.4
23.4
21
18.9
12.9
13.5
14.5
13.4
17.2
14.2
13.6
17.5
16.8
Dry
15
Dry
Carbon Dioxide (mg/L)
3.45
NT
NT
373
NT
NT
406
NT
NT
NT
NT
35.9
NT
NT
NT
NT
183
273
13.6
427
132
Dry
2.63
Dry
Alkalinity (mg/L)
64
NT
NT
430
NT
NT
540
NT
NT
NT
NT
150
NT
NT
NT
NT
260
380
180
600
290
Dry
70
Dry
Chloride (mg/1)
2.2
NT
NT
55
NT
NT
160
NT
NT
NT
NT
5
NT
NT
NT
NT
140
140
42
110
96
Dry
6.8
Dry
Hydrogen (nM)
1.9 J
NT
NT
170
NT
NT
25
NT
NT
NT
NT
19.0
NT
NT
NT
NT
2.9 J
3.6 J
2.7 J
2.4 J
5
Dry
120
Dry
Lactic Acid (mg/1)
0.70
NT
NT
0.54
NT
NT
<0.053
NT
NT
NT
NT
1.0
NT
NT
NT
NT
<0.053
<0.053
0.91
3.8 J
<0.053
Dry
1.1
Dry
Acetic Acid (mg/1)
0.18 J
NT
NT
0.26 J
NT
NT
1.7 J
NT
NT
NT
NT
0.15 J
NT
NT
NT
NT
1.9 J
1.6 J
0.24 J
2.0 J
1.6 J
Dry
0.14 J
Dry
Propionic Acid (mg/1)
<0.053
NT
NT
<0.053
NT
NT
<0.053
NT
NT
NT
NT
<0.053
NT
NT
NT
NT
<0.053
<0.053
<0.053
<0.053
<0.053
Dry
<0.053
Dry
Formic Acid (mg/1)
4.9 J
NT
NT
4.9
NT
NT
43
NT
NT
NT
NT
5.2
NT
NT
NT
NT
43
44
5.0
45
42
Dry
4.9
Dry
Butyric Acid (mg/1)
<0.058
NT
NT
<0.058
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
<0.058
<0.058
<0.058
Dry
<0.058
Dry
Pyruvic Acid (mg/1)
<0.06
NT
NT
<0.06
NT
NT
<0.06
NT
NT
NT
NT
<0.06
NT
NT
NT
NT
<0.06
<0.06
<0.06
<0.06
<0.06
Dry
<0.06
Dry
i-Pentanoic Acid (mg/1)
<0.061
NT
NT
<0.061
NT
NT
<0.061
NT
NT
NT
NT
<0.061
NT
NT
NT
NT
<0.061
<0.061
<0.061
<0.061
<0.061
Dry
<0.061
Dry
Pentanoic Acid (mg/1)
<0.056
NT
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
i-Hexanoic Acid (mg/1)
<0.056
NT
NT
<0.056
NT
NT
<0.056
NT
NT
NT
NT
<0.056
NT
NT
NT
NT
<0.056
<0.056
<0.056
<0.056
<0.056
Dry
<0.056
Dry
Hexanoic Acid (mg/1)
<0.058
NT
NT
0.065 J
NT
NT
<0.058
NT
NT
NT
NT
<0.058
NT
NT
NT
NT
<0.058
<0.058
0.071 J
<0.058
<0.058
Dry
<0.058
Dry
Benzene (µg/1)
<0.40
<0.40
1.2
0.82 J
4.4
0.82 J
1.4
<0.40
2.8 J
<0.40
2
1.2
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.4
<0.40
Dry
<0.40
Dry
Toluene (µg/1)
<0.40
<0.40
<0.40
<0.40
3
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.40 J
<0.40
Dry
<0.40
Dry
Ethylbenzene (µg/l)
<0.40
<0.40
<0.40
<0.40
4.9
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Xylenes (µg/1)
<0.40
<0.40
0.84 J
<0.40
8.9
<0.40
<0.40
<0.40
1.6
<0.40
<0.40
<0.40
<0.40
<0.40
0.71 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Total BTEX (µg/l)
ND
ND
2.04 J
0.82 J
21.2
0.82 J
1.4
ND
4.4 J
ND
2
1.2
ND
ND
0.71 J
ND
ND
ND
ND
2.8
ND
Dry
ND
Dry
PCE (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
TCE (µg/1)
<0.40
<0.40
<0.40
0.69 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
cis-1,2-Dichloroethene (µg/1)
<0.40
12
0.79 J
17
<0.40
<0.40
<0.40
<0.40
27
<0.40
3.1
1.8
<0.40
1.3
<0.40
<0.40
0.77 J
<0.40
0.78 J
4.0
2.6
Dry
<0.40
Dry
trans-1,2-Dichlorethene (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
DCE Detected?
ND
Yes
Yes
Yes
ND
ND
ND
ND
Yes
ND
Yes
Yes
ND
Yes
ND
ND
Yes
ND
Yes
Yes
Yes
Dry
ND
Dry
VC (µg/1)
<5.0
9.4
0.54 J
2.6
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.69 J
0.57 J
<0.40
0.47 J
<0.40
<0.40
<0.40
<0.40
<0.40
1.7
0.54 J
Dry
<0.40
Dry
1,1,1-Trichloroethane (µg/l)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
1,1-DCA+1,2-DCA (µg/1)
ND
1.4
1.5
7.58 J
ND
0.50 J
1.5
0.64 J
3.0
ND
ND
ND
ND
0.99 J
0.71 J
ND
0.81 J
0.59 J
ND
2.06 J
1.40 J
Dry
ND
Dry
Carbon Tetrachloride (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Chloroethane (µg/1)
<0.40
<0.40
2.7
1.7 J
<0.40
0.69 J
3.3
<0.40
3.4
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
2.1
Dry
<0.40
Dry
Ethene (µg/L)
<0.12
NT
NT
<0.12
NT
NT
<0.12
NT
NT
NT
NT
0.29 J
NT
NT
NT
NT
<0.12
<0.12
<0.12
0.26 J
<0.12
Dry
<0.12
Dry
Ethane (µg/L)
<0.075
NT
NT
<0.075
NT
NT
0.51 J
NT
NT
NT
NT
<0.075
NT
NT
NT
NT
0.36 J
0.22 J
<0.075
0.24 J
0.36 J
Dry
<0.075
Dry
Chloroform (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Dichloromethane (µg/1)
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
0.48 J
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
<0.40
Dry
<0.40
Dry
Notes:
1. ND =Non Detected
2. NT =Not Tested
3. MW-2 is the background well
4. 7 values are estimated concentrations greater than the MDL and less than the PQL
14175-03 NASP Input and Summary.xlsx Prepared By: TAO
Table F-5 NASP Input (Oct 21) Checked By: IAI

APPENDIX G
NASP SCORE SHEETS
[NOVEMBER 2019 TO OCTOBER 2021]

APPENDIX G -I
NASP SCORE SHEETS
[NOVEMBER 2019]

M W-4
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 27
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-6
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 22
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
0
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
0
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
0
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
0
PCE*
Material released
0
0
0
TCE*
Daughter product of PCE of
0
0
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
0
VC*
Daughter product of DCE'/
0
0
0
1,1,1-
Trichloroethane*
Material released
0
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
2
Carbon
Tetrachloride
Material released
0
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
0
0
>0.1 mg/L
Daughter product of VC/ethene
0
0
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
0
Dichloromethane
Daughter product of Chloroform
0
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-13-132
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 23
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-18-78
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 25
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-19-75
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 16
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
O
0
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-19-110
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 16
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-21
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 27
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-94
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 23
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
4
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
(
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
(k
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-24-160
Natural Attenuation
Screening
Protocol
Interpretation
Score
y Col- : 10
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
(k
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

APPENDIX G- 2
NASP SCORE SHEETS
[aPRIL 2020]

M W-4
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 20
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-6
Natural Attenuation
Interpretation
Score
Screening
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
Protocol
Score: 24
f.1,1—g Is taken from the usePA protocol IusePA, issa>.
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
�Th.
he results of this scoring process have no regulatory
9°1fOe�ee.
Scroll to End of Table
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductivedechionnahon points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen*
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
O
0
0
concentrations
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
O
0
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
OO
O
2
pathway
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
0
O
3
Fe(Ill)-reducing conditions
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
OO
O
2
pathway
Sulfide*
>1 mg/L
Reductive pathway possible
O
0
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
O
O
3
Oxidation
<50 millivolts (mV)
Reductive pathway possible
O
O
1
Reduction
Potential* (ORP)
<-100mV
Reductive pathway likely
O
0
0
pH*
5 < pH < 9
Optimal range for reductive pathway
O
O
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
O
0
0
natural or anthropo enic
Temperature*
>20°C
At T >20°C biochemical process is accelerated
O
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
O
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
O
O
1
minerals
Chloride*
>2x background
Daughter product of organic chlorine
O
O
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
O
O
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
O
0
0
compounds; carbon and energy source
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
O
0
0
PCE*
Material released
O
0
0
TCE*
Daughter product of PCE of
O
0
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
OQ
Q
2
product of TCEaf; 1,1-DCE can be a Chem. reaction product of TCA
VC*
Daughter product of DCE
O
0
0
1,1,1-
Material released
O
0
0
Trichloroethane*
DCA
Daughter product of TCA under reducing conditions
OO
O
2
Carbon
Material released
O
0
0
Tetrachloride
Chloroethane*
Daughter product of DCA or VC under reducing conditions
OO
O
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
O
0
>0.1 mg/L
Daughter product of VC/ethene
O
0
Chloroform
Daughter product of Carbon Tetrachloride
O
0
0
Dichloromethane
Daughter product of Chloroform
O
0
* required analysis. l
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE I ( Reset
(i.e., not a constituent of the source NAPL).

MW-13-132
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 28
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-18-78
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 28
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-19-75
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 20
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-19-110
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 23
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-21
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 22
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-94
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 28
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
4
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-24-160
Natural Attenuation
Screening
Protocol
Interpretation
Score
y Col- : 9
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

APPENDIX G- 3
NASP SCORE SHEETS
OCTOBER 2020]

M W-4
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .34
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-6
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .32
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
1
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-13-132
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 28
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-18-78
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .34
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-19-75
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 24
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-19-110
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 25
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-21
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .32
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-94
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .30
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-24-160
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 13
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
4
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

APPENDIX G- 4
NASP SCORE SHEETS
[aPRIL 202 i ]

M W-4
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 20
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
0
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
0
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-6
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 29
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
OO
0
2
Temperature*
>20°C
At T >20°C biochemical process is accelerated
O�
0
1
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-13-132
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 27
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
O�
0
1
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-18-78
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 25
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
0
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-19-75
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 22
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-19-110
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 22
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
0
0
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-21
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .32
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-94
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .33
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-24-160
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 16
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

APPENDIX G- 5
NASP SCORE SHEETS
OCTOBER 2021 ]

M W-4
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 28
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-6
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 27
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-13-132
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 24
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-18-78
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : 24
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
O�
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
3
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
O�
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-19-75
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 27
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

MW-19-110
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 25
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
OO
0
2
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-21
Natural Attenuation
Screening
Protocol
Interpretation
Score
9 coi-e: 29
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
0
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
1
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
OO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
if
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-21-94
Natural Attenuation
Screening
Protocol
Interpretation
Score
y COFf : .32
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s Of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in * reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
0
3
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
3
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
3
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
2
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
1
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
O
0
2
VC*
Daughter product of DCE'/
DO
0
2
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
2
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
O
0
2
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).

M W-24-160
Natural Attenuation
Screening
Protocol
Interpretation
Score
y Col- : 10
scroll to End of Table
Inadequate evidence for anaerobic biodegradation* of chlorinated organics
0 to 5
Limited evidence for anaerobic biodegradation* of chlorinated organics
6 to 14
The foliowing is Wken from the UsePA protowl (usePA, 1998).
The rssW4s of this Scoring process have no regulatory
signs i-
Adequate evidence for anaerobic biodegradation* of chlorinated organics
15 to 20
Strong evidence for anaerobic biodegradation* of chlorinated organics
>20
Concentration in reductive dechlorination Points
Analysis Most Contam. Zone Interpretation Yes No Awarded
Oxygen`
<0.5 mg/L
Tolerated, suppresses the reductive pathway at higher
concentrations
0
Di
0
> 5mg/L
Not tolerated; however, VC may be oxidized aerobically
0
O
0
Nitrate*
<1 mg/L
At higher concentrations may compete with reductive
pathway
0
0
2
Iron II*
>1 mg/L
Reductive pathway possible; VC may be oxidized under
Fe(Ill)-reducing conditions
0
0
Sulfate*
<20 mg/L
At higher concentrations may compete with reductive
pathway
0
0
0
Sulfide*
>1 mg/L
Reductive pathway possible
0
(0)
0
Methane*
>0.5 mg/L
Ultimate reductive daughter product, VC Accumulates
0
0
Oxidation
Reduction
Potential* (ORP)
<50 millivolts (mV)
Reductive pathway possible
O
0
1
<-100mV
Reductive pathway likely
0
0
PH*
5 < pH < 9
Optimal range for reductive pathway
0
0
0
TOC
>20 mg/L
Carbon and energy source; drives dechlorination; can be
natural or anthro o enic
0
O
0
Temperature*
>20°C
At T >20°C biochemical process is accelerated
0
(k
0
Carbon Dioxide
>2x background
Ultimate oxidative daughter product
0
0
Alkalinity
>2x background
Results from interaction of carbon dioxide with aquifer
minerals
0
0
Chloride*
>2x background
Daughter product of organic chlorine
0
2
Hydrogen
>1 nM
Reductive pathway possible, VC may accumulate
0
3
Volatile Fatty Acids
>0.1 mg/L
Intermediates resulting from biodegradation of aromatic
compounds; carbon and energy source
OO
0
2
BTEX*
>0.1 mg/L
Carbon and energy source; drives dechlorination
0
0
PCE*
Material released
0
0
TCE*
Daughter product of PCE of
0
OO
0
DCE*
Daughter product of TCE.
If cis is greater than 80% of total DCE it is likely a daughter
product of TCEef; 1,1-DCE can be a Chem. reaction product of TCA
0
0
VC*
Daughter product of DCE'/
0
OO
0
1,1,1-
Trichloroethane*
Material released
0
0
DCA
Daughter product of TCA under reducing conditions
0
0
Carbon
Tetrachloride
Material released
0
0
Chloroethane*
Daughter product of DCA or VC under reducing conditions
0
O
0
Ethene/Ethane
>0.01 mg/L
Daughter product of VC/ethene
0
O
0
>0.1 mg/L
Daughter product of VC/ethene
0
O
0
Chloroform
Daughter product of Carbon Tetrachloride
0
0
Dichloromethane
Daughter product of Chloroform
0
0
* required analysis.
a/ Points awarded only if it can be shown that the compound is a daughter product SCORE Reset
(i.e., not a constituent of the source NAPL).