WS-7148_30576_CA_CAP_20221129_CAPR

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
www.terraquestpc.com

CORRECTIVE ACTION PERFORMANCE REPORT

(September, October, November 2022)

FOUR BROTHERS FOOD STORE # 208
4975 REYNOLDA ROAD
WINSTON-SALEM, FORSYTH COUNTY, NC 27106

Latitude: 36.167540° Longitude: -80.335961° (dispensers per Google)

Facility ID No. 0-021926
NCDWM-UST Incident No. 30576
NCDWM-UST Risk Ranking: HIGH 287D

Release Information:
Date Release Discovered: 6/3/05
Estimated Release Quantity: Unknown
Release Cause/Source: Gasoline and Diesel Dispensers of Commercial Gasoline UST System
UST Capacities: 3, 10,000-gallon Gasoline, 1, 4,000-gallon Diesel, & 1, 2,000-gallon Kerosene

UST System Owner/Responsible Party:
Beroth Oil Company, Inc.
Post Office Box 439
Pfafftown, NC 27040-0439

Property Owner:
Boulos Holdings LLC
1200 National Dr
Winston-Salem NC 27104

Terraquest Project No. 01205

November 29, 2022

Corrective Action Performance Report (9/10/11-2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 i 4975 Reynolda Road, Winston-Salem, NC
TABLE OF CONTENTS
ENVIRONMENTAL ACRONYMS...................................................................................................................... ii
EXECUTIVE SUMMARY ................................................................................................................................. iii
1.0 INTRODUCTION ................................................................................................................................ 1
2.0 SITE HISTORY AND CHARACTERIZATION .......................................................................................... 1
3.0 FREE PRODUCT REMOVAL ............................................................................................................... 9
4.0 SOIL REMEDIATION .......................................................................................................................... 9
5.0 GROUNDWATER REMEDIATION .................................................................................................... 11
6.0 CONCLUSIONS ................................................................................................................................ 15
7.0 LIMITATIONS .................................................................................................................................. 16
REFERENCE .................................................................................................................................................. 17
CERTIFICATION ............................................................................................................................................ 18

TABLES:

1. Site History (UST System Information)
2. Surrounding Property Owners
3. Water Supply Well Information
4. Summary of Soil Sampling Results
5. Summary of Air Sampling Results
6. Contaminant Mass Removal Calculations
7. Monitoring Well Construction Information
8. Summary of Groundwater Sampling Results

FIGURES:

1. Site Location Map
2. Site Vicinity Map
3. Site Layout Map
4. Remediation System Layout
5. Potentiometric Surface Map (6/29/22)
6. Soil Analytical Results Map
7. Soil Sample Location Map (UST Closure)
8. Groundwater Analytical Results (6/29/22)

APPENDICES:

A. Technical Methods / Standard Procedures
B. Chronological Site History
C. Historical Groundwater Data
D. Analytical Reports
E. Treatment System Inspection Sheets

ENVIRONMENTAL ACRONYMS

Corrective Action Performance Report (9/10/11-2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 ii 4975 Reynolda Road, Winston-Salem, NC
2L Standard Groundwater Standards Title 15A NCAC 2L
0.0202(g)
2B Standard Surface Water Standards Title 15A NCAC 2B
AFVR Aggressive Fluid-Vapor Recovery
AST Aboveground Storage Tank
BGL Below Ground Level
BTEX Benzene, toluene, ethylbenzene, xylenes
C&D Construction and Demolition
CAP Corrective Action Plan
CAPR Corrective Action Performance Report
CADR Corrective Action Design Report
CSA Comprehensive Site Assessment
DPE Dual-phase Extraction
EPA Environmental Protection Agency
ePATA Electronic Pre-Approval Task Authorization
EPH Extractable Petroleum Hydrocarbons
ESA Environmental Site Assessment
GCL Gross Contamination Level
LEL Lower Explosive Limit
LSA Limited Site Assessment
IPE di-Isopropyl Ether
ISCO In-situ Chemical Oxidation
MADEP Massachusetts Department of Environmental
Protection
MDL Method Detection Limit
MNA Monitored Natural Attenuation
MMPE Mobile Multi Phase Extraction
MSCC Maximum Soil Contaminant
Concentration
MSL Mean Sea Level
MSW Municipal Solid Waste
MTBE Methyl tertiary-Butyl Ether
NC North Carolina
NCAC NC Administrative Code
NCDENR NC Department of Environment and Natural
Resources
NCDEQ NC Department of Environmental
Quality
NCDOT NC Department of Transportation
NCDWM-SW NC Division of Waste Management’s Solid
Waste Section
NCDWM-UST NC Division of Waste Management’s UST
Section
NCDWQ NC Division of Water Quality
NFA No Further Action
NORR Notice of Regulatory Requirements
NORP Notice of Residual Petroleum
NOV Notice of Violation
NPDES National Pollutant Discharge
Elimination System
OVM Organic Vapor Meter
PID Photoionization Detector
PLC Programmable Logic Controller
POE Point of Entry (water treatment system)
POTW Publicly Owned Treatment Works
RBCA Risk Based Corrective Action
RDL Reporting Detection Limit
RP Responsible Party
SCFM Standard Cubic Feet per Minute
SVE Soil Vapor Extraction
STF Leaking UST State Trust Fund
STG Soil to Groundwater
TA Task Authorization
TCC Target Cleanup Concentrations
Terraquest Terraquest Environmental Consultants,
P.C.
TPH Total Petroleum Hydrocarbon
UST Underground Storage Tank
VOA Volatile Organic Analysis
VOC Volatile Organic Compound
VPH Volatile Petroleum Hydrocarbons
XP Explosion Proof

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 iii 4975 Reynolda Road, Winston-Salem, NC
EXECUTIVE SUMMARY

On behalf of Beroth Oil Company, Terraquest Environmental Consultants, P.C. has prepared this
Corrective Acton Performance Report for the petroleum UST release incident at the Four
Brothers Food Store No. 208 located in Winston-Salem, Forsyth County, NC.

A soil and groundwater remediation system was successfully operated during the September,
October, and November 2022 time period for treatment of the Four Brothers No. 208 release
incident. Ongoing monitoring reveals a continued decline in contamination. A June 2022
groundwater sampling event revealed only one well with one GCL violation in groundwater.
Terraquest recommends continued operation of the treatment system and continuation of the
semi-annual sampling schedule to track progress toward site closure.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 1 4975 Reynolda Road, Winston-Salem, NC
1.0 INTRODUCTION

On behalf of the responsible party, Beroth Oil Company, Inc., Terraquest Environmental
Consultants, P.C. has prepared this Corrective Action Performance Report for the Four Brothers
Food Store #208 facility located in Winston-Salem, Forsyth County, North Carolina. The site has
been ranked a High Risk H278D by the NCDWM-UST based upon the presence of sole-source
water supply wells within 1,000-feet of the source area. Corrective actions at this site have
previously included air sparging and SVE via the onsite remediation system. This report
documents the remediation system operation, maintenance, and performance toward
contaminant reduction for the September, October, and November 2022 operating period.
Activities detailed in this report were pre-approved by the NCDWM-UST on ePATAs 30576-077.

The site location is depicted in Figure 1. Figure 2 depicts the properties surrounding the site and
the location of potable wells within a 1,500-foot radius of the site. Figure 3 depicts the layout of
the site. The remediation system layout is shown on Figure 4. Terraquest’s technical methods
and standard procedures are detailed in Appendix A. A detailed chronological site history is
provided in Appendix B.

2.0 SITE HISTORY AND CHARACTERIZATION

1. UST Owner Information
The owner of the previous USTs was Beroth Oil.

2. UST Tank Information
According to the NCDENR UST Database and discussions with Beroth Oil, nine commercial USTs
have been installed at the facility. Two 1,000-gallon and two 6,000-gallon gasoline tanks were
installed and removed prior to 1988. On May 31, 1988, a 4,000-gallon diesel, 2,000-gallon
kerosene, and three 10,000-gallon gasoline USTs were installed at the site. Those tanks were
removed on October 8, 2020 as previously reported to the NCDWM-UST. Pertinent information
regarding the USTs is contained in Table 1. The UST locations are depicted in Figure 3.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 2 4975 Reynolda Road, Winston-Salem, NC
3. Non-UST Information
No non-USTs are located on the property.

4. Release Description

A petroleum release incident associated with the commercial gasoline and diesel UST system at
the site was discovered during a Phase II ESA conducted as part of a possible property transaction
in 2005. No discrete release event has been documented for the USTs at the site. The estimated
quantity of petroleum released to the subsurface from the USTs is unknown.

5. Site Characteristics
The site formerly operated as a gas station with associated convenience store but is now vacant.
The site was sold in December 2021 to Boulos Holdings LLC.

The area consists of residential and commercial use properties as follows:

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 3 4975 Reynolda Road, Winston-Salem, NC
Properties in the vicinity of the site are zoned as shown on Figure 2. The closest residence is
located approximately 400 feet to the north. The release area surface is generally gravel or
covered by the current building with some grassy landscaped areas present also.

6. Regional and Site Geology and Hydrogeology

The subject property is located in the Sauratown Mountains Anticlinorium Belt of the Piedmont
Physiographic Region of North Carolina. Generally, gently rolling, well rounded hills and long low
ridges are found throughout the Piedmont Physiographic Region. Groundwater in the region is
directed toward the Yadkin River to the south.

According to the Geologic Map of North Carolina (Brown, 1985), bedrock lithologies at the site
consist primarily of metagraywacke amphibolites and kyanite schists.

The following lithologies were encountered at the site during the various stages of assessment:

0' - 6' below ground level (BGL):
SILT WITH SAND (ML)
Saprolitic, mostly tan to white/brown, little medium coarse sand with trace clay.

6' – 85’ BGL
SAPROLITIC SILT (ML)
Mostly silt, medium stiffness, white/yellowish orange/brown, few gold mica, few medium
coarse grained sand and trace quartz gravel.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 4 4975 Reynolda Road, Winston-Salem, NC
Cross-sectional views follow:

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 5 4975 Reynolda Road, Winston-Salem, NC

Depth-to-water measurements have been collected from the monitoring wells during various
stages of the assessment to estimate the direction of groundwater flow. Groundwater elevation
measurements were reduced to a common datum by surveying the relative elevation of the top
of the casing for each monitoring well. The water table elevation data was then used to create a
potentiometric surface map which illustrates the interpreted direction and gradient of
groundwater flow that is generally to the north, northwest. The recent June 29, 2022
measurements were used to construct Figure 5 that confirms this direction. Historical
groundwater elevation data is provided in Appendix C.

The groundwater elevation measurements reveal that the hydraulic head within the shallow
phreatic aquifer ranged from a relative value of approximately 71.13 feet at monitoring well
MW8 to 67.13 feet at monitoring well MW9 as measured on January 20, 2011. As measured
parallel to groundwater flow, these results indicate flow in the phreatic aquifer is in a
northeasterly direction under an average hydraulic gradient of 0.03. Note that the plume
geometry indicated a northwesterly flow.

Water level data from the Type III monitoring wells (MW5 and MW16) and the interpreted
groundwater elevation in the phreatic aquifer in the vicinity of the Type III wells were used to
determine if a vertical head gradient existed in the phreatic aquifer. The vertical head gradient

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 6 4975 Reynolda Road, Winston-Salem, NC
was calculated using the following equation and groundwater elevation data collected on January
20, 2011:

where:

Vg = Vertical head gradient
Hphreatic = Water elevation in the shallow aquifer near MW5 = 67.60’
HMW5= Water elevation in deep well MW5 = 67.11’
D = The difference in elevation between the shallow water table and the
middle of the well screen in MW5 = (67.60 – 35.78) = 31.82’

therefore:

Vg = Vertical head gradient
Hphreatic = Water elevation in the shallow aquifer near MW16 = 67.80’
HMW16 = Water elevation in deep well MW16 = 66.43’
D = The difference in elevation between the shallow water table and the
middle of the well screen in MW16 = (67.80 – 15.61’) = 52.19’

The head gradient suggests a recharging hydraulic flow gradient meaning groundwater tends to
flow in a downward direction. A review of regional topographic map affirms this belief. With
increasing depth and distance from the recharge area, the flow lines flatten out and become
more horizontal than vertical. Eventually, as the flow lines near lower elevations, the flow lines
curve upward toward the ground surface into areas of discharge such as streams and rivers.
D=V 5g
hhMWphreatic−

015.0 =31.82'
11'67.60'-67.=Vg
026.0 =52.19'
43'67.80'-66.=Vg

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 7 4975 Reynolda Road, Winston-Salem, NC
7. Surrounding Property Owners and Occupants

Surrounding property owner and occupant information is provided in Table 2.

8. Critical Receptors

As part of LSA activities, a reconnaissance of surrounding properties was performed to identify
any sensitive contaminant receptors. A total of fourteen water supply wells were identified
within 1,500 of the site. Five of those wells are within 1,000 feet of the source area and are active
as the property’s sole source of drinking water. During the reconnaissance efforts, Terraquest
was informed that a water main is not present along Davis Acres Lane where the PW3, PW4, and
PW5 properties reside. Note that the PW2 property was connected to the municipal water
supply system in September 2017. The well on that property is no longer a sole-source well. The
PW1 property was connected to city water with final work in November/December of 2020.
Potable well PW1 was abandoned on August 12, 2021. Details of the identified water supply
wells are provided in Table 3.

As part of the reconnaissance effort, Terraquest also searched for any surface water bodies
within a 500-foot radius of the site. The closest surface water body is an unnamed creek located
approximately 400 feet north of the site. The unnamed creek flows into Muddy Creek
approximately 2,300 feet northwest of the site.

9. Summary of CAP Implementation

The approved CAP for this site was submitted in October 2013 and required the removal of free
product via MMPE and the subsequent installation of an air sparge and SVE remediation system.
MMPE was successfully used to remove the majority of free product. The treatment system was
brought online following specification, bidding, pre-approval, well installation, system
construction, and system installation activities in April 2015. Based on the continued presence
of groundwater contamination in the area around RW1 and MW13, Terraquest installed air

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 8 4975 Reynolda Road, Winston-Salem, NC
sparge well AS7, on July 23, 2020. Connection of that well to the system air supply was made via
trenching and welded HDPE piping on August 12-13, 2020 by Piedmont Industrial Services, Inc.
The treatment system was shut down in July 2021 due to decreased contaminant concentrations
and the reduction of risk in the connection of a downgradient property to the municipal water
supply system and abandonment of that properties potable well. The treatment system was
restarted in December 2021 due to contamination rebound. Two new air sparge wells were
installed and connected to the treatment system in April 2022

10. Reporting

To date, a Phase II Environmental Site Assessment, Initial Abatement Action, LSA, CSA, CAP,
Active Remediation Monitoring, Monitoring, Corrective Action Performance, and System
Enhancement Reports have been submitted for this release incident. A Contaminant Fate and
Transport Model showing that the release incident will not likely impact downgradient receptors
with the reported concentrations was provided to the NCDWM-UST in August 2021. Dissolved-
phase contaminant concentrations subsequently rebounded. The system was turned back on
and semi-annual sampling and reporting has resumed.

11. Progress of Remediation at the Site

The corrective action implemented for this site has generally been effective toward the stated
goals. Free product appears absent from the site, soil contamination has been reduced with the
successful recovery of contaminant-laden vapors via SVE, and the dissolved-phase groundwater
contaminant plume shrank in size and strength with the operation of an air sparge system. The
April 2021 groundwater analytical data revealed no GCL violations and the last few air samples
from the SVE exhaust stack showed no TPH concentration above the lab’s method detection limit.
A groundwater model was completed that showed the remaining contamination is not a threat
to downgradient receptors if GCL violations are removed from the site. Following the April 2021
sampling event, contamination rebound was reported in an October 2021 event. Treatment
continues to remove GCL violations.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 9 4975 Reynolda Road, Winston-Salem, NC
3.0 FREE PRODUCT REMOVAL

No free product was encountered at the site during the recent operating period. Free product
has historically been present in monitoring and recovery wells MW1, 2, 4, 12, 15, RW1, and RW4
as shown in Appendix C. Product thickness was as great as 3.40 feet in monitoring well MW9 in
September 2009. Free product was last gauged, in monitoring well MW12, only at a thickness of
0.10 feet in September 2016. Free product was generally removed via MMPE events as detailed
on the last page of the chronological summary provided in Appendix B.

4.0 SOIL REMEDIATION

Historical Assessment:
As part of a Phase II Environmental Site Assessment, a total of nineteen soil samples (B1 – B18
and D1) were collected around the USTs and their associated product lines and dispensers on
March 25, 2005. Analytical results for the collected soil samples revealed the presence of
petroleum-type compounds at concentrations more than the TPH Action Limits (at the time) in
the samples collected from soil borings B8 and B9. Detections of petroleum hydrocarbons were
present in the samples collected from soil borings B1 and B2. Due to the detected contamination,
additional soil borings (B1A, B8A, and B9A) were advanced on August 25, 2008. Analytical results
for soil samples collected from the additional soil borings revealed petroleum-type
contamination more than the STG MSCCs in the B8A and B9A samples.

To define the extent of soil impact associated with the release, Terraquest advanced fourteen
soil borings (B19 – B32) at locations around the former UST system as part of the CSA. Soil borings
B19 – B25 were advance on August 23, 2010 and soil borings B26 – B32 were advanced on January
14, 2011. Analytical results for the soil samples revealed petroleum-type contaminants at
concentrations more than the STG MSCC in several of the collected soil samples.

Data from the CAP, as summarized on Table 4 and Figure 6, estimated the area of in-situ soil
contamination with reported analytical concentrations in excess of the STG MSCCs is

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 10 4975 Reynolda Road, Winston-Salem, NC
approximately 2,990 square feet. With an average depth to water in the source area of around
thirty feet and contamination that begins at ground level beneath the dispensers, a source
thickness of thirty feet was estimated. A water table varied smear zone is also present beneath
the vadose zone. The extent of soil contamination, as shown in the cross sections above, sloped
away from the dispensers so that the thickness across the violation area is not the same. The
contaminant concentrations are also varied as shown in Table 4. Summed VPH results are as high
as 9,492 mg/kg. Based upon available data, the estimated extent of in-situ soil contamination at
violation concentrations PRIOR TO THE OPERATION OF THE SVE SYSTEM had a weight between
1,700 – 2,150 tons. Using averages, the mass of soil contamination was estimated at 1,600
gallons. That did not include the smear zone or dissolved-phase contaminants in the aquifer.

Following the removal of the USTs, dispensers, and product lines, Terraquest personnel collected
soil samples during the week of October 5-9, 2020. Those results are summarized on Table 4 and
Figure 7.

Excavation:
Excavation was not conducted during this operating period. Excavation has not been conducted
as part of the CAP.

Installation, activation, operation and maintenance, monitoring, and shutdown of a remedial
system (if applicable):

Installation, activation, system design and process, and shutdown were not conducted during
this operating period and are not applicable.

The volume and extent of soil contamination was previously discussed.

Radius of influence or capture zone of the system was estimated at ten feet in the CAP based on
pilot testing. There are no active gauges or other measures present to tell if the ROI has deviated
from that estimate during the recent period.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 11 4975 Reynolda Road, Winston-Salem, NC
A partial look at soil quality was assessed during the recent period by sampling the active SVE
system’s exhaust stack in September, October, and November 2022. The results of those
sampling efforts, presented on Table 5, reveal little contamination reported at concentrations in
excess of the reporting limit. Assuming the system recovered some value just below the lab’s
reporting limit, contaminant mass removal calculations using the latest results have been
completed and are presented as Table 6 along with historical data that is also graphed. The
recent air sample analytical reports are provided in Appendix D.

Flow rates and pressures for the system are detailed on the inspection sheets in Appendix E.
System operation and maintenance was conducted twice per month and followed the
manufacturer’s recommendations. A chronological history of site activities is provided in
Appendix B. No permits were issued or required for soil remediation during this period.

During the September, October, and November 2022 operating period, the soil remediation
system ran well with no problems noted. Costs for soil and groundwater remediation during the
reporting period were pre-approved on ePATA 30576-077 that authorized $6,914 toward system
maintenance, parts, and operating costs.

5.0 GROUNDWATER REMEDIATION

Remedial efforts:
The approved and implemented Corrective Action Plan and modifications thereto uses nine air
sparge wells to remediate the shallow aquifer. Underground piping was previously installed to
connect the wells with a rotary screw air compressor that delivered air to the wells on a
continuous basis 24 hours per day.

Recent groundwater monitoring:
Prior to purging and sampling the monitoring well network on June 29, 2022, Terraquest
personnel first measured the depth to groundwater in each well. Those measurements are listed
in Table 7 and were used in conjunction with previously established casing elevations to generate

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 12 4975 Reynolda Road, Winston-Salem, NC
the potentiometric surface map presented as Figure 5 that depicts groundwater flow toward the
north/northwest.

On June 29, 2022, Terraquest personnel sampled wells approved by the NCDWM-UST including
MW1, 4, 5, 11-15 ,17, 23, 25, RW1-4, and potable wells PW3 and PW15 using protocols outlined
in Appendix A. Monitoring well MW28 was covered by a car and could not be sampled. Each
sample was submitted for laboratory analysis of VOCs per method 6200B.

The analytical results, summarized on Table 8 and Figure 8, revealed the absence of GCL
violations in all but one well for one compound. Six monitoring wells had samples with
concentrations that exceeded the 2L Standards. Overall, the plume footprint remains stable
and continues to slowly degrade. The declining trend in dissolved-phase contamination is shown
on the following pages:

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 13 4975 Reynolda Road, Winston-Salem, NC

9/2015: Free product and some contaminant
reduction occurred with MMPE but
generally, the plume shape was
stagnant prior to active treatment.

9/2016: 9/2017:

Plume disconnect starting.
Monitoring well MW11 is <2L TRENDING SINCE 2015 Plume pinching in.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 14 4975 Reynolda Road, Winston-Salem, NC

Plume disconnect continues
and core breaking up
Plume disconnect continues
and core breaking up
4/2021
10/2020 10/2019
No GCL violations
10/2021
4/2022
No GCL violations
6/2022

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 15 4975 Reynolda Road, Winston-Salem, NC
A chronological history of groundwater remediation and monitoring activities is provided in
Appendix B. Historical groundwater analytical data is provided in Appendix C. Flow rates and
pressures for the treatment system are detailed on the inspection sheets provided in Appendix
E.

System operation and maintenance is currently conducted twice per month and follows
manufacturer’s recommendations as best possible given the limited time granted by the LUST
Trust Fund.

No permits were issued or required for groundwater remediation during this period.

During the September, October, and November 2022 operating period, the soil remediation
system ran well with an issue with the compressor noted later in the quarter. The air compressor
for the sparge system is currently off while a new compression hose is purchased. The
compressor is several years old and has many hours on it; the compression has dropped and may
ultimately require an extensive overhaul.

Groundwater monitoring is conducted on a semi-annual basis using wells dictated by the
NCDWM-UST.

6.0 CONCLUSIONS

A soil and groundwater remediation system was successfully operated during the September,
October, and November 2022 time period for treatment of the Four Brothers No. 208 release
incident. Ongoing monitoring reveals a continued decline in contamination. A June 2022
groundwater sampling event revealed only one well with one GCL violation in groundwater.
Terraquest recommends continued operation of the treatment system and continuation of the
semi-annual sampling schedule to track progress toward site closure.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 16 4975 Reynolda Road, Winston-Salem, NC
7.0 LIMITATIONS

This report is limited to the investigation of petroleum-type compounds and does not imply that
other unforeseen adverse impacts to the environment are not present at the facility. In addition,
subsurface heterogeneities not identified during the current study may influence the migration
of groundwater or contaminants in unpredicted ways. The limited amount of sampling and
testing conducted during this study cannot practically reveal all subsurface heterogeneities.
Furthermore, the subsurface conditions, particularly groundwater flow, elevations, and water
quality may very through time. The opinions and conclusions arrived at in this report are in
accordance with industry-accepted geologic and hydrogeologic practices at this time and
location. No warranty is implied or intended.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 17 4975 Reynolda Road, Winston-Salem, NC
REFERENCE

Brown, et al., 1985. Geologic Map of North Carolina, North Carolina. Department of Natural
Resources and Community Development, 1:500,000 scale.

Corrective Action Performance Report (9/10/11--2022) Beroth Oil Company, Inc.
By: Terraquest Environmental Consultants, P.C. Four Brothers Food Store # 208
Report Prepared: November 29, 2022 18 4975 Reynolda Road, Winston-Salem, NC
CERTIFICATION
1 Enter the date the monitoring report was due. 12/31/2022 Will this report be submitted after the
established due date?
YES NO X
2 Was any required information from the above template missing from this report? YES NO X
IF the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain what was missing and why.
3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? (within a reasonable margin of error) YES NO X
IF the answer to question #3 is “NO”, skip to the certification under #8 below.
IF the answer to question #3 is “YES”, please generally describe in this cell the possible reason(s) and outline proposed remedies. (This should be described in more detail in the report text above.)
4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation? YES NO
5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? YES NO
IF the answer to either question #4 or #5 is “YES”, generally describe in this cell any actions recommended to further assess or clean up this known or suspected source. (This should be described in more detail in the report text above.) 6 Certification:
I, Michael J. Brown, a Licensed Geologist and I, John S. Haselow, a Licensed Engineer in the State of North
Carolina for TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C. do certify that the information contained in
this report is correct and accurate to the best of my knowledge. All work was performed under my direct
supervision. My seal and signature are affixed below. Additional seals and/or signatures are also listed.

Terraquest Environmental Consultants, P.C. is licensed to practice geology and engineering in North Carolina.
The geology certification number of the corporation is C-291. The engineering certification number of the
corporation is C-4634. Engineering is practiced out of the Cary, NC office.

TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C.

Ryan D. Kerins Michael J. Brown, P.G. John Haselow, PhD, PE
Project Manager President Senior Engineer

TABLES

Table 1
Date: 11/14/22 Facility ID No.: 0-021926
UST Product Capacity (gallons)Date Installed Date Closed Release Discovered?
01 Gasoline 1,000 unknown Prior to '88 YES
02 Gasoline 1,000 unknown Prior to '88 YES
03 Gasoline 6,000 unknown Prior to '88 YES
04 Gasoline 6,000 unknown Prior to '88 YES
T1 Diesel 4,000 5/31/1988 10/8/2020 YES
T2 Kerosene 2,000 5/31/1988 10/8/2020 YES
T3 Gasoline 10,000 5/31/1988 10/8/2020 YES
T4 Gasoline 10,000 5/31/1988 10/8/2020 YES
T5 Gasoline 10,000 5/31/1988 10/8/2020 YES
Notes:
1. Information obtained from the NC Petroleum UST Database and discussions with Beroth Oil Company.
2. Refer to Figure 3 for the locations of T1-T5.
Incident Name: Four Brothers 208 Incident No.: 30576
SITE HISTORY (UST SYSTEM INFORMATION)
Facility ID No. 0-021926
Property Owner Property Owner Address Property Address
BSK Enterprises Inc.4995 Reynolda Rd.4995 Reynolda Rd.
Winston-Salem, NC 27106 Winston-Salem, NC 27106
John Williard 5870 Stanleyville Dr 4945 Reynolda Rd.
Rural Hall, NC 27045 Winston-Salem, NC 27106
Eunice Leinbach Trust 507 Rainbow Rd 5000 Reynolda Rd.
Advance, NC 27006 Winston-Salem, NC 27106
Kate Grubbs 4971 Bethania Rd.4941 Bethania Rd.
Winston-Salem, NC 27106 Winston-Salem, NC 27106
Kate Grubbs 4941 Bethania Rd.4941 Bethania Rd.
Winston-Salem, NC 27106 Winston-Salem, NC 27106
Beroth Oil Company Post Office Box 439 4975 Reynolda Rd.
Pfafftown, NC 27040-0439 Winston-Salem, NC 27106
Notes:
1. Information gathered from Forsyth County, NC Geo-Data Explorer.
2. BOLD portion of tax PIN numbers correspond with those displayed on Figure 2.
6808-52-6609
6808-52-7509
SITE
6808-52-7590
6808-52-5430
6808-62-1809
6808-62-1686
Table 2
Date: 11/14/22
Tax PIN
SURROUNDING PROPERTY OWNERS
Incident Name: Four Brothers #208 Incident No.: 30576
Table 3Date: 11/14/22 Facility ID No. 0-021926
Well Depth Type Casing Depth Screen Interval Distance from Source
Well ID No. Well Owner/Address Well Address Well Use (feet BGS)of Well (feet BGS)(feet BGS)Area of Release (feet)BSK Enterprises Inc.PW1 4995 Reynolda Rd.4995 Reynolda Rd.abandoned unknown unknown unknown unknown 148
Winston-Salem, NC 27106 Winston-Salem, NC 27106 (8/12/21)
Daniel and Barbara Brewer secondary sourcePW2209 Keenan Krest Rd.5045 Reynolda Rd.(municipal water supplies uknown uknown uknown uknown 537
Mocksville, NC 27028 Winston-Salem, NC 27106 building, 9/2017)
Lisa Glenn JonesPW35001 Bethania Rd 105 Davis Acres Ln.sole source uknown uknown uknown uknown 573Winston Salem NC 27106 Winston-Salem, NC 27106
Tyrone Davis sole source
PW4 PO Box 74 115 Davis Acres Ln.no power to well unknown unknown uknown uknown 584Bethania, NC 27010 Winston-Salem, NC 27106 property currently vacant
Nalia Davis
PW5 5001 Bethania Rd 135 Davis Acres Ln.sole source uknown uknown uknown uknown 818
Winston-Salem, NC 27106 Winston-Salem, NC 27106Vance Grubbs
PW6 4941 Bethania Rd.4971 Bethania Rd.not in use uknown uknown uknown uknown 517
Winston-Salem, NC 27106 Winston-Salem, NC 27106Vance Grubbs
PW7 4941 Bethania Rd.4971 Bethania Rd.not in use uknown uknown uknown uknown 293
Winston-Salem, NC 27106 Winston-Salem, NC 27106
Vance GrubbsPW84941 Bethania Rd.4971 Bethania Rd.not in use unknown unknown unknown unknown 220
Winston-Salem, NC 27106 Winston-Salem, NC 27106
Vance Grubbs PW9 4941 Bethania Rd.4941 Bethania Rd.not in use unknown unknown unknown unknown 435Winston-Salem, NC 27106 Winston-Salem, NC 27106
Moravia Church In America
PW10 5545 Main St.4945 Reynolda Rd.not in use unknown unknown unknown unknown 131Bethanin, NC 27010 Winston-Salem, NC 27106
Page Distributing Co.
PW11 PO Box 15047 4930 Reynolda Rd. not in use unknown unknown unknown unknown 339Winston-Salem, NC 27103 Winston-Salem, NC 27106Vivian Timmons
PW12 4728 Shattalon Dr.4728 Shattalon Dr.not in use unknown unknown unknown unknown 931
Winston-Salem, NC 27106 Winston-Salem, NC 27106Stacey Bustos Jr.
PW13 3926 Gracemont Dr.3926 Gracemont Dr.not in use unknown unknown unknown unknown 906
Winston-Salem, NC 27106 Winston-Salem, NC 27106
Joshua RowellPW144002 Talcott Ave.4002 Talcott Ave.not in use unknown unknown unknown unknown 1,326
Winston-Salem, NC 27106 Winston-Salem, NC 27106
William and Candy DoomyPW153259 Clarice Ave 5044 Bethania Rd sole source unknown unknown unknown unknown 615
Pfafftown, NC 27040 Winston-Salem, NC 27106
Daniel and Barbara Brewer sole source
PW16 209 Keenan Krest Rd.5085 Reynolda Rd.no power to well and bored unknown unknown unknown unknown 685Mocksville, NC 27028 Winston-Salem, NC 27106 well appears full of trash
Notes:
1. "BGS" = feet below ground surface, . 2. Information obtained from Terraquest field interviews.3. Well ID numbers are displayed on Figure 2.
WATER SUPPLY WELL INFORMATIONIncident Name: Four Brothers #208 Incident No.: 30576
TPH 5030TPH 355082608260826082608260826082608260826082608260826082608260826082608260/82708260826082608260827082708270827082708270827082708270MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPHDate Collected Sample DepthD13/25/05 3'<6.0 -----------------------------------B1 3/25/05 13.5' - 15'<6.0 5.3 ----------------------------------B2 3/25/05 13.5' - 15'<6.0 5.4 ----------------------------------
B3 3/25/05 13.5' - 15'<6.0 <4.9 ----------------------------------B4 3/25/05 14' - 15'<6.0 <4.8 ----------------------------------B5 3/25/05 14' - 15'<6.0 <4.7 ----------------------------------B6 3/25/05 14' - 15'<6.4 <4.9 ----------------------------------B7 3/25/05 14' - 15'<6.1 -----------------------------------B8 3/25/05 13' - 14'<6.1 13.0 ----------------------------------
B9 3/25/05 14' - 15'430 -----------------------------------B10 3/25/05 14' - 15'<5.5 -----------------------------------B11 3/25/05 14' - 15'<5.6 -----------------------------------B12 3/25/05 14' - 15'<5.9 -----------------------------------B13 3/25/05 14' - 15'<5.6 -----------------------------------B14 3/25/05 13' - 14'<5.3 -----------------------------------B15 3/25/05 14' - 15'<5.5 -----------------------------------
B16 3/25/05 14' - 15'<5.8 -----------------------------------B17 3/25/05 10' - 11'<8.4 -----------------------------------B18 3/25/05 10' - 11'<5.8 -----------------------------------B1A 8/25/2008 13.5'-14.5'--<0.0012 <0.0061 <0.0012 <0.0036 <0.0012 <0.0012 <0.061 <0.0012 <0.0012 <0.0012 <0.0012 -<0.0012 <0.0012 <0.012 <0.012 <0.0061/<0.40 <0.0012 <0.0012 <0.0012 <0.0012 --<0.40 -<0.40 <0.40 --<0.40 <5.5 <13.4 <7.9 <13.4B8A8/25/2008 13.5'-14.5'--0.022 0.072 0.0062 0.072 0.60 0.0088 <0.060 <0.0012 <0.0012 <0.0012 <0.0012 -<0.0012 0.0019 <0.012 0.021 0.0075/<0.40 0.0022 <0.0012 0.020 0.014 --<0.40 -<0.40 <0.40 --<0.40 <6.2 <14.1 <7.9 <14.1B9A8/25/2008 15.5'-16.5'--<0.13 1.1 2.3 19 <0.13 <0.13 <6.3 3.9 0.73 <0.13 <0.13 -0.76 1.2 <1.3 3.6 8.1/-3.3 <0.13 25 7.4 ---------110 310 -220
B9A 8/25/2008 24'-25'--4.8 40 10 52 <0.62 <0.62 <31 2.9 <0.62 <0.62 <0.62 -1.1 <0.62 <6.2 <6.2 8.7/-3.3 <0.62 17 5.2 ---------2,600 2,200 -1,200B198/23/10 13'-15'--0.002 0.0027 0.0017 0.0131 <0.0029 <0.0019 0.0841 <0.0016 <0.0015 <0.0013 <0.0015 <0.015 <0.0018 <0.0013 <0.010 <0.0094 0.0066/<0.039 <0.0019 <0.0025 0.0111 0.0038 <0.39 <0.039 <0.043 <0.039 <0.039 <0.039 <0.039 <0.039 <0.039 <2.2 <11.6 <10 <21.54B198/23/10 23'-25'--19.4 253 87 466 <1.4 <0.89 84.1 16.3 6.26 <0.59 <0.71 <6.9 13.7 3.93 <4.9 <4.4 51.4/11.4 43.1 <1.2 259 65.8 <2 <0.20 <0.22 <0.20 <0.20 <0.20 15.9 <0.20 <0.20 3,830 3,638 <11 2,024B208/23/10 3'-5'--<0.0012 <0.0015 <0.0013 <0.0027 <0.0028 <0.0018 <0.026 <0.0016 <0.0015 <0.0012 <0.0015 <0.014 <0.0017 <0.0012 <0.010 <0.0092 <0.0024/<0.040 <0.0018 <0.0024 <0.0013 <0.0018 <0.40 <0.040 <0.044 <0.040 <0.040 <0.040 <0.040 <0.040 <0.040 <2.5 24.4 <11 <21.61B208/23/10 22'-24'--0.0023 0.0122 0.0132 0.118 <0.0020 <0.0013 0.215 0.0429 0.0198 <0.00088 <0.0011 <0.010 0.0119 0.0076 <0.0073 <0.0066 0.176 /<0038 0.0408 <0.0018 0.506 0.111 <0.38 <0.038 0.0493 <0.038 <0.038 <0.038 0.123 <0.038 <0.038 9.21 26.5 <9.9 26.87B218/23/10 3'-5'--<0.0012 0.0021 <0.0013 <0.0027 <0.0028 <0.0018 <0.026 <0.0016 <0.0015 <0.0012 <0.0015 <0.014 <0.0017 <0.0012 <0.010 <0.0092 0.0044 J/<0.038 <0.0018 0.0025 0.0015 <0.0018 <0.38 <0.038 <0.042 <0.038 <0.038 <0.038 <0.038 <0.038 <0.038 <2.9 <12.2 <10 <21.72
B21 8/23/10 17'-19'--<0.050 <0.060 <0.055 0.206 <0.11 <0.075 <1 0.122 <0.060 <0.050 <0.060 <0.58 <0.070 <0.050 <0.41 <0.37 0.501/0.0881 <0.075 <0.10 0.651 0.248 0.463 <0.038 <0.042 <0.038 <0.038 <0.038 0.393 <0.038 <0.038 7.41 45.4 <10 30.2B228/23/10 3'-5'--<0.0010 <0.0012 <0.0011 <0.0022 <0.0023 <0.0015 <0.021 <0.0013 <0.0012 <0.0012 <0.0012 <0.012 <0.0014 <0.0010 <0.0084 <0.0076 <0.0020/<0.041 <0.0015 <0.0020 <0.0011 <0.0015 <0.41 <0.041 <0.045 <0.041 <0.041 <0.041 <0.041 <0.041 <0.041 <2.1 <12.6 <11 <22.52B228/23/10 18'-20'--<0.0012 <0.0015 <0.0013 <0.0027 0.0987 <0.0018 <0.026 <0.0016 <0.0015 <0.060 <0.0015 <0.70 <0.0017 <0.0012 <0.49 <0.45 <0.0025/<0.039 <0.0018 <0.12 <0.0013 <0.0018 <0.39 <0.039 <0.043 <0.039 <0.039 <0.039 <0.039 <0.040 <0.040 <2.3 <12.8 <11 <21.59B238/23/10 12'-14'--0.0656 1.09 0.859 6.56 <0.14 <0.089 <1.3 0.822 0.323 <0.76 0.0739 <8.9 0.275 0.215 <6.3 <5.7 2.97/0.172 1.07 <1.5 8.6 2.91 2.02 <0.040 <0.044 0.0733 0.218 <0.040 0.810 <0.17 <0.17 <8.3 96 <10 60.8B238/23/10 22'-24'--1.23 32.1 24.9 137 <1.8 <1.1 <16 7.43 3.28 <0.0012 <0.91 <0.014 4.69 1.4 <0.010 <0.0092 25.8/4.70 17.9 <0.0025 99.8 33.5 5.21 0.291 <0.83 <0.17 0.202 <0.17 7.21 <0.039 <0.039 401 838 <11 493B248/23/10 3'-5'--<0.0011 0.0062 0.002 0.0107 <0.0025 <0.0016 <0.023 <0.0014 <0.0013 <0.0011 <0.0013 <0.013 <0.0015 <0.0011 <0.0091 <0.0082 <0.0022/<0.038 <0.0016 <0.0022 0.0034 <0.0016 <0.38 <0.038 <0.041 <0.038 <0.038 <0.038 <0.038 <0.038 <0.038 <2.3 23.2 <10 <20.57
B24 8/23/10 27'-29'--0.524 9.43 6.96 39.4 <0.74 <0.48 <6.8 1.72 0.723 <0.32 <0.48 <3.8 1.42 0.363 <2.7 <2.4 7.57/0.0870 5.13 <0.64 29.2 8.79 <0.39 <0.039 <0.043 <0.039 <0.039 <0.039 0.289 <0.039 <0.039 146 245.8 <10 181B258/23/10 12'-14'--<0.58 35.1 19.9 120 2.02 <0.87 <12 3.10 2 <0.58 <0.70 <6.8 5.06 1.28 <4.8 <4.4 13.1/2.71 17.6 <1.2 108 34.2 <0.39 0.0526 <0.19 <0.039 <0.039 0.0576 2.96 <0.039 <0.039 240 737 <11 502.9B258/23/10 27'-29'--4.98 78.2 42.4 222 <1.7 <1.1 <15 8.33 3.54 <0.72 <0.87 <8.5 6.89 1.61 <6.0 <5.4 33/27.5 25.9 <1.4 132 42.7 <3.8 <0.38 <0.42 <0.38 <0.38 <0.38 24.1 <0.38 <0.38 445 893 <11 516.8B261/4/11 11'-13'--<0.49 4.09 4.45 28.3 3.43 <0.33 <6.5 1.85 1.03 <0.33 <0.33 <1.8 1.88 0.458 <1.8 <2 8.82/0.303 6.63 <0.33 48.2 15.6 <0.34 0.237 0.0711 <0.019 <0.019 0.0251 0.792 <0.019 0.0614 121 569 <10 637.4B261/4/11 20'-22'--<0.0018 <0.0014 <0.0012 <0.0039 0.0425 <0.0012 0.139 0.003 <0.0019 <0.0012 <0.0012 <0.0065 <0.0013 <0.0014 <0.0066 0.0452 0.166/<0.030 <0.0017 <0.0012 0.0242 0.0043 <0.33 <0.038 <0.024 <0.019 <0.019 <0.019 0.0308 <0.019 <0.019 162 528.1 <10 641B271/4/11 11'-13'--<0.0018 0.0022 <0.0012 <0.0038 0.606 0.002 0.334 <0.0015 <0.0019 <0.0012 <0.0012 0.0878 <0.0013 <0.0014 0.0490 0.117 <0.0024/<0.031 <0.0016 <0.0012 <0.0013 <0.0015 <0.34 <0.038 <0.024 <0.019 <0.019 <0.019 <0.019 <0.019 <0.019 <2.5 <12.5 <10 <23.5B271/4/11 18'-20'--<0.10 <0.084 <0.070 <0.22 6.01 <0.070 <1.4 <0.091 <0.11 <0.070 <0.070 <0.38 <0.077 <0.084 <0.38 <0.43 <0.14/<0.031 <0.098 <0.070 <0.077 <0.091 <0.34 <0.039 <0.024 <0.019 <0.019 <0.019 <0.019 <0.019 <0.019 5.07 <12.6 <10 <22.6
B28 1/4/11 18'-20'--<0.0019 <0.0016 <0.0013 <0.0042 <0.0026 <0.0013 0.2 <0.0017 <0.0021 <0.0013 <0.0013 <0.0070 <0.0014 <0.0016 <0.0071 <0.0079 <0.0026/<0.032 <0.0018 <0.0013 <0.0014 <0.0017 <0.35 <0.040 <0.025 <0.020 <0.020 <0.020 <0.020 <0.020 <0.020 <2.9 <13.9 <11 <23.9B281/4/11 23'-25'--0.0342 0.0351 0.0023 0.0437 0.0208 0.0075 0.0967 <0.0017 <0.0020 0.005 0.0092 <0.0069 <0.0014 <0.0015 <0.0070 0.0467 <0.0025/<0.033 <0.0018 <0.0013 0.0042 0.0032 <0.36 <0.041 <0.026 <0.021 <0.021 <0.021 <0.021 <0.021 <0.021 <2.8 <13.8 <11 <24.8B291/4/11 8'-10'--<0.11 0.607 0.814 6.69 <0.15 <0.076 <1.5 0.524 0.153 <0.076 <0.076 <0.41 0.188 0.134 <0.42 <0.46 4.12/3.64 0.670 <0.076 7.56 2.33 <0.70 <0.080 <0.050 <0.040 <0.040 <0.040 5.33 <0.040 0.0622 5.24 451.6 212 186B291/4/11 13'-15'--<2.2 27 29.2 189 <2.9 <1.5 <29 9.69 3.73 <1.5 <1.5 <7.9 5.83 2.2 <8 <8.9 29.4/9.94 23 <1.5 145 46.6 <1.4 <0.15 <0.097 <0.077 <0.077 <0.077 10.1 <0.077 <0.077 695 1,970 <10 1,759.5B301/4/11 8'-10'--9.60 189 138 708 <2.7 <1.3 <27 21.7 8.98 <1.3 <1.3 <7.2 19.5 6.29 <7.3 <8.1 124/12.3 63.8 <1.3 392 135 <1.4 <0.16 <0.78 <0.078 <0.078 <0.078 13.6 0.0844 0.122 1,230 3,723 272 3,225B301/4/11 23'-25'--0.277 3.10 1.77 11.1 <0.25 0.362 <2.5 0.476 <0.20 <0.12 <0.12 <0.67 0.316 <0.15 <0.69 <0.76 3.31/0.281 1.15 <0.12 9.15 2.63 1.54 <0.040 <0.025 <0.020 <0.020 <0.020 0.916 <0.020 0.0251 90.3 262.2 <11 261
B31 1/4/11 8'-10'--<0.0021 0.0098 0.0079 0.0619 <0.0028 0.0052 0.0417 0.0059 0.0024 <0.0014 0.0024 <0.0075 0.002 0.0022 <0.0076 <0.0085 0.0451/0.0724 0.0058 <0.0014 0.104 0.0393 <0.34 <0.038 <0.024 <0.019 <0.019 <0.019 0.086 <0.019 <0.019 <2.9 33.2 <10 <32.8B311/4/11 13'-15'--<8.1 134 137 1,150 <11 <5.4 <110 27.1 12.3 <5.4 <5.4 <29 29 7.84 <30 <33 101/10.6 101 6 679 215 <1.3 <0.15 <0.096 <0.076 <0.076 0.081 11.7 <0.076 0.132 260 1,421 <10 1,178.1B321/4/11 23'-25'--<0.0018 <0.0014 <0.0012 <0.0038 <0.0024 <0.0012 0.0810 <0.0015 <0.0019 <0.0012 <0.0012 <0.0064 <0.0013 <0.0014 0.0102 J 0.0288 <0.0024/<0.031 <0.0017 <0.0012 <0.0013 <0.0015 <0.34 <0.039 <0.025 <0.020 <0.020 <0.020 <0.020 <0.020 <0.020 <2.9 <13.9 <11 <23.9B321/4/11 25'-27'--<0.16 0.355 0.496 2.80 <0.21 <0.11 <2.1 0.940 0.261 <0.11 <0.11 <0.57 0.209 0.162 <0.58 <0.67 3.69/0.171 0.884 <0.11 6.43 2.05 <0.36 <0.041 <0.026 <0.020 <0.020 <0.020 0.791 <0.020 <0.020 17.1 143.5 <11 165CS110/7/20 10'<50 <10CS210/7/20 10'58 <10
CS3 10/7/20 10'<50 <10CS410/7/20 10'<50 <10CS510/7/20 10'124 <10CS610/8/20 18'<50 -CS7 10/8/20 18'<50 -CS8 10/8/20 18'<50 -
CS9 10/8/20 18'<50 -CS10 10/8/20 18'<50 -CS11 10/8/20 18'<50 -CS12 10/8/20 18'<50 -CS13 10/8/20 18'<50 -CS14 10/8/20 18'<50 -
D1 10/7/20 4'108 15
D2 10/7/20 4'55 <10D310/9/20 3'<50 -D4 10/9/20 3'53 -D5 10/9/20 3'<50 <10D610/9/20 3'<50 -PL1 10/7/20 4'54 <10
PL2 10/9/20 3'<50 <10PL310/9/20 3'<50 <10PL410/9/20 3'<50 <10PL510/9/20 3'<50 <10PL610/9/20 3'<50 -PL7 10/9/20 3'<50 -PL8 10/9/20 3'<50 -
10 10 ------------------------------------0.0056 4.3 4.9 4.6 0.091 0.37 24 4.3 3.3 0.000098 0.0019 1.9 1.7 31 NE 16 0.16 1.7 NE 8.5 8.3 120 NE 0.64 NE 0.17 47 3.6 NE 56 68 540 ##31
--18 1,200 1,560 3,129 350 156 14,000 626 626 0.31 7 6,200 1,564 469 NE 9,385 313 626 NE 782 782 62,571 NE 312 NE 4,693 620 63 NE 469 939 1,500 31,000 469--164 32,000 40,000 81,760 3,100 4,088 360,000 16,350 16,350 2.8 63 160,000 40,880 12,264 NE 245,280 8,176 16,350 NE 20,440 20,440 1,635,200 NE 8,176 NE 122,600 16,400 1,635 NE 12,264 24,528 40,000 810,000 12,264Notes: 1. All results in mg/kg = parts per million (ppm).
2. Bold denotes a compound detection. 3. Shading denotes a detected concentration above Soil-to-Groundwater Maximum Soil Contaminant Concentraton (MSCCs). 4. Sample depths are in feet below ground level. 5. <- denotes less that sample detection limit. 6. # - Health Based level > 100%; ## - Considered immobile 7. Naphthalene results: 8260/8270 analysis
Table 4 SUMMARY OF SOIL SAMPLING RESULTS Date: 11/14/22 Incident Name: Four Brothers 208 Incident No.: 30576 Facility ID No: 0-021926
Analytical Method
Sample ID
Contaminant of Concern
BenzeneTolueneGasolineDiesel/KeroseneC9-C22 AromaticsSoil to groundwater MSCC Benzoic AcidBenzyl Alcohol2,4-DimethylphenolFluorene2-MethylnaphthaleneN-NitrosodiphenylamineMethyl ethyl ketoneNaphthaleneTotal XylenesMTBEIPEAcetonen-Butylbenzenesec-ButylbenzenePhenanthreneC-5-C8 AliphaticsC9-C18 AliphaticsC19-C36 Aliphaticsn-Propylbenzene1,2,3-Trichlorobenzene1,2,4 Trimethylbenzene1,3,5 TrimethylbenzeneAction Level (at the time)2-MethylphenolPhenolResidential MSCCs (mg/kg)1,2-Dibromoethane1,2-Dichloroethane2-HexanoneIsopropylbenzenep-Isopropyltoleune4-Methyl-2-pentanoneIndustrial/Commercial MSCCs (mg/kg)Ethylbenzene
Table 5Date: 11/28/22
EPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MEPA 18MWell ID Date Collected Well ID Date CollectedSVE STACK 4/27/15 22,400 86,100 10,100 26,800 -1,140,000 SVE Stack 7/12/19 <161 1,080 525 2,051 <193 38,500SVE STACK 5/15/15 12,700 75,300 12,000 34,800 -967,000 SVE Stack 8/7/19 <161 1,120 509 2,074 <193 40,100
SVE STACK 6/22/15 5,690 40,400 7,770 20,340 -718,000 SVE Stack 9/12/19 <161 1,020 511 2,152 <193 34,100
SVE STACK 7/14/15 2,610 22,400 5,110 15,440 -323,000 SVE Stack 10/22/19 <161 603 <130 746 <193 55,300SVE STACK 8/13/15 4,620 29,000 7,060 22,010 -528,000 SVE Stack 11/26/19 <161 642 <130 634 <193 34,400SVE STACK 9/4/15 2,290 13,600 2,710 6,390 -217,000 SVE Stack 1/23/20 <161 682 147 988 < 193 33,600SVE STACK 10/13/15 2,170 16,200 4,230 10,980 -204,000 SVE Stack 2/12/20 <161 441 <130 364 < 193 21,800
SVE STACK 12/4/15 2,940 16,600 3,090 8,550 -257,000 SVE Stack 3/11/20 332 1,710 283 1,429 <193 151,000
SVE STACK 1/8/16 2,970 14,300 2,530 6,940 -228,000 SVE Stack 4/7/20 <161 239 <130 <165 <193 14,700SVE STACK 2/9/16 623 7,680 3,230 10,630 -123,000 SVE Stack 5/7/20 <161 480 <130 689 <193 20,500SVE STACK 3/8/16 827 5,290 1,610 5,160 -89,200 SVE Stack 6/25/20 < 161 382 < 130 346 < 193 21,400SVE STACK 4/12/16 974 5,600 2,300 7,590 -93,600 SVE Stack 7/7/20 < 161 234 < 130 < 165 < 193 < 12,800
SVE STACK 5/10/16 580 5,330 3,360 20,160 -108,000 SVE Stack 8/3/20 < 161 634 134 779 < 193 37,800
SVE STACK 6/9/16 444 2,980 1,480 7,620 -33,000 SVE Stack 9/10/20 178 552 < 130 313 < 193 < 12,800SVE STACK 7/8/16 349 2,200 1,080 6,940 <190 68,400 SVE Stack 10/13/20 272 2,280 1,900 8,380 < 193 66,700SVE STACK 8/22/16 1,400 7,100 2,600 17,000 600 520,000 SVE Stack 11/12/20 < 161 550 <130 532 <193 28,600SVE STACK 9/7/16 1,000 5,900 2,500 17,000 <72 230,000 SVE Stack 1/6/21 < 161 441 <130 788 <193 16,400
SVE STACK 10/24/16 510 3,600 1,400 8,400 <7.2 93,000 SVE Stack 2/2/21 < 161 321 <130 <165 <193 <12,800
SVE STACK 11/8/16 440 3,100 1,300 7,700 <7.2 84,000 SVE Stack 3/1/21 < 161 191 <130 <165 <193 <12,800SVE STACK 1/12/17 781 4,410 1,840 9,720 <190 103,000 SVE Stack 4/5/21 < 125 < 260 < 124 < 368 < 499 < 12,200SVE STACK 2/8/17 482 2,170 1,450 5,050 <190 43,000 SVE Stack 5/4/21 < 125 314 < 124 458 < 499 < 12,200SVE STACK 3/9/17 886 3,690 1,980 8,900 <190 73,800 SVE Stack 6/2/21 < 125 < 260 < 124 425 < 499 < 12,200
SVE STACK 4/6/17 614 2,820 860 5,980 <190 290,000 SVE Stack 7/6/21 < 125 < 260 < 124 497 < 499 < 12,200
SVE EXHAUST 5/4/17 1,060 4,560 1,110 8,180 <190 186,000 SVE STACK 12/21/21 370 461 127 547 < 499 46,200SVE EXHAUST 6/5/17 515 1,880 463 3,000 <190 50,400 SVE STACK 1/17/22 238 733 139 1,150 < 499 18,400SVE STACK 7/6/17 762 1,920 336 1,960 <190 58,400 SVE STACK 2/9/22 270 839 195 1,530 < 499 19,700SVE STACK 8/9/17 898 1,880 282 1,840 <190 133,000 SVE STACK 3/3/22 168 314 < 124 603 < 499 12,700
SVE STACK 10/5/17 466 2,400 522 3,270 <190 22,600 SVE STACK 4/5/22 < 125 < 260 < 124 < 230 < 499 < 12,200
SVE STACK 11/7/17 772 2,540 411 2,470 <190 30,800 SVE STACK 5/3/22 < 125 < 260 < 124 < 230 < 499 < 12,200SVE STACK 12/7/17 914 3,260 524 2,910 <190 47,400 SVE STACK 6/1/22 < 125 < 260 < 124 < 368 < 499 < 12,200SVE STACK 1/8/18 945 4,020 638 3,700 <190 54,000 SVE STACK 7/5/22 < 125 < 260 < 124 < 368 < 499 < 12,200SVE STACK 2/6/18 948 4,190 608 3,500 <190 57,400 SVE STACK 8/11/22 < 125 < 260 < 124 471 < 499 < 12,200
SVE Stack 3/6/18 769 3,650 611 2,890 <190 55,500 SVE STACK 9/14/22 < 125 < 260 < 124 < 368 < 499 < 12,200
SVE STack 4/5/18 537 2,940 561 2,730 <190 34,300 SVE Stack 10/6/22 < 125 < 260 < 124 < 368 < 499 < 12,200
SVE Stack 5/4/18 535 3,480 986 5,360 <193 91,300 SVE STACK 11/10/22 < 125 < 260 < 124 396 < 499 < 12,200SVE Stack 6/5/18 <161 1,260 260 1,339 < 193 31,500SVE Stack 7/6/15 376 1,690 300 1,550 <193 40,700
SVE Stack 8/2/18 376 1,550 276 1,447 <193 52,700
SVE Stack 9/7/18 310 972 170 847 <193 31,900
SVE Stack 10/2/18 <161 <156 <130 <165 <193 27,000SVE Stack 11/13/18 420 1,880 371 2,056 <193 61,700SVE Stack 12/12/18 263 1,500 309 1,515 <193 44,100
SVE Stack 1/31/19 <161 812 157 851 <193 23,400
SVE Stack 2/13/19 247 1,210 228 788 <193 48,300
SVE Stack 3/12/19 216 945 173 959 <193 35,700SVE Stack 4/10/19 <161 215 <130 <165 <193 29,500SVE Stack 5/13/19 <161 382 <130 <165 <193 31,600
SVE Stack 6/11/19 892 1,300 534 2,145 <193 52,900
Notes:
1. All results in parts per billion volume (ppbv) except as noted.2. BOLD - denotes a detected concentration.Total xylenesMTBETPHIncident Name: Four Brothers #208 Incident Number: 30576 Facility ID No. 0-021926SUMMARY OF AIR SAMPLING RESULTS
Analytical MethodContaminant of Concern
BenzeneTolueneEthylbenzeneAnalytical MethodContaminant of Concern
BenzeneTolueneTotal xylenesEthylbenzeneMTBETPH
Table 6Date: 11/28/22OPERATING/MONITORING PERIOD:START: 9/1/22 END:11/30/22
AIR SPARGE AND SVE SYSTEM CALCULATIONS no effluent contamination in 4/5-2022
Avg. vacuum pressure in inches of water at blower:83 in. H2O
measurement taken upstream of filter.
From the blower performance curve, at a vacuum pressure of:83 in. H2O
this model produces (scfm flow rate):115 scfmIs the dilution valve open? Subtract dilution flow rate:0 scfm
TPH concentration of vapors at stack for this period:12,199 ppbv
Volume of air removed in ft3 equals (flow)(1,440 min/d)(days in this period)14,904,000 ft3
Volume of gasoline vapor removed is equal to air volume removed
muliplied by the TPH concentration.
Vol. air removed (ft3) x [TPH concentration of vapor (ft3 gasoline vapor/1E+09 ft3 air)]182 ft3 gasoline
vapor
1 ft3 vapor equals 7.48 gal.
1 gal. equal 3.78 liters
ft3 gasoline vapor x 7.48 gal./ft3 x 3.78 liters/gal. equals liters gasoline vapors.5,141 liters gasoline
vapor
At standard temperature and pressure, there are 22.4 liters
of gasoline vapor per mole of gasoline. The molecular wt.of carbon in gasoline is 89 g/mole.
89 g/mole x (1mole/22.4 liters) equals:3.97 g/liter
Amount of Contaminant Removed
gasoline vapor (liters) x (3.97 g/liter) x (1 lb/454 g) equals lbs. vapor 44.95 lb of gasoline0.022476316 tonsConversion to gallons: 6.25 lb/gal gasoline Gallons of contaminant recovered SVE and air sparge vapors:7.19 gallons
4/8/2015 0 0
OPERATING/MONITORING PERIOD:4/9/15 6/30/15 Recovered:491.93 gallons 491.93OPERATING/MONITORING PERIOD:7/1/15 9/25/15 Recovered:220.54 gallons 712.47OPERATING/MONITORING PERIOD:9/26/15 12/17/15 Recovered:134.59 gallons 847.06
OPERATING/MONITORING PERIOD:12/18/15 3/31/16 Recovered:130.40 gallons 977.46
OPERATING/MONITORING PERIOD:4/1/16 6/30/16 Recovered:60.14 gallons 1037.60
OPERATING/MONITORING PERIOD:7/1/16 9/30/16 Recovered:212.12 gallons 1249.72OPERATING/MONITORING PERIOD:10/1/16 12/31/16 Recovered:45.88 gallons 1295.60OPERATING/MONITORING PERIOD:1/1/2017 3/31/17 Recovered:63.88 gallons 1359.48
OPERATING/MONITORING PERIOD:4/1/2017 9/30/17 Recovered:189.39 gallons 1548.87
OPERATING/MONITORING PERIOD:10/1/2017 12/31/17 Recovered:26.13 gallons 1575.00
OPERATING/MONITORING PERIOD:1/1/2018 4/30/18 Recovered:59.48 gallons 1634.48OPERATING/MONITORING PERIOD:5/1/2018 5/31/18 Recovered:23.40 gallons 1657.88OPERATING/MONITORING PERIOD:6/1/2018 8/31/18 Recovered:32.37 gallons 1690.25
OPERATING/MONITORING PERIOD:9/1/2018 11/30/18 Recovered:24.05 gallons 1714.30
OPERATING/MONITORING PERIOD:12/1/2018 2/28/19 Recovered:29.35 gallons 1743.65
OPERATING/MONITORING PERIOD:3/1/2019 5/31/19 Recovered:25.09 gallons 1768.74OPERATING/MONITORING PERIOD:6/1/2019 8/31/19 Recovered:20.45 gallons 1789.19OPERATING/MONITORING PERIOD:9/1/2019 11/30/19 Recovered:21.13 gallons 1810.32
OPERATING/MONITORING PERIOD:12/1/2019 2/29/20 Recovered:14.20 gallons 1824.52
OPERATING/MONITORING PERIOD:3/1/2020 5/31/20 Recovered:32.17 gallons 1856.69
OPERATING/MONITORING PERIOD:6/1/2020 8/31/20 Recovered:15.34 gallons 1872.03OPERATING/MONITORING PERIOD:9/1/2020 11/30/20 Recovered:18.47 gallons 1890.50OPERATING/MONITORING PERIOD:12/31/2020 2/28/21 Recovered:7.40 gallons 1897.90
OPERATING/MONITORING PERIOD:3/1/2021 5/31/21 Recovered:0.17 gallons 1898.07
OPERATING/MONITORING PERIOD:6/1/2021 7/6/21 Recovered:0.09 gallons 1898.16
OPERATING/MONITORING PERIOD:7/6/2021 2/28/22 Recovered:12.70 gallons 1910.86OPERATING/MONITORING PERIOD:3/1/2022 3/31/22 Recovered:2.50 gallons 1913.36OPERATING/MONITORING PERIOD:4/1/2022 8/31/22 Recovered:12.15 gallons 1925.51
OPERATING/MONITORING PERIOD:9/1/2022 11/30/22 Recovered:7.19 gallons 1932.70
1,932.70 gallons
HISTORICAL RECOVERY:
Total recovery:
CONTAMINANT MASS REMOVAL CALCULATIONSIncident Name: Four Brothers #208 Incident Number: 30576 Facility ID No. 0-021926
Conversions:
Conversions:
Therefore:
0
492
712 847 9771,038
1,250
1,296
1,359
1,549
1,575
1,634
1,658
1,690
1,714
1,744
1,769
1,789
1,810
1,825
1,857
1,872
1,890
1,898
1,898 1,898
1,911
1,913 1,926
1,933
0
500
1000
1500
2000
2500
Four Brothers #208 Incident Number: 30576Gallons of contaminant recovered SVE and air sparge vapors:
Table 7Date: 11/29/22 Facility ID No. 0-021926
Well ID Date Installed
Date Water Level
Measured
Well Casing Depth (ft.
BGS)
Screened
Interval (x to y ft.
BGS)
Bottom of Well (ft.
BGS)
Top of
Casing Elevation
(ft.)
Depth to
Water from Top of
Casing (ft.)
Free
Product Thickness
(ft.)
Groundwater
Elevation (ft.)Comments
MW1 8/25/2008 6/29/2022 15 15-40 40 96.07 29.46 0 66.61 2"-diameter Type II monitoring wellMW23/5/2009 -15 15-40 40 95.20 ---2"-diameter Type II monitoring wellMW33/5/2009 -15 15-40 40 95.87 ---2"-diameter Type II monitoring wellMW43/5/2009 6/29/2022 15 15-40 40 96.90 30.23 0 66.67 2"-diameter Type II monitoring well
MW5 8/23-24/10 6/29/2022 OC: 50 IC: 60 60-65 65 94.23 28.93 0 65.30 2"-diameter Type III monitoring wellMW68/23/2010 -15 15 - 40 40 97.60 ---2"-diameter Type II monitoring wellMW78/24/2010 -15 15 - 40 40 97.43 ---2"-diameter Type II monitoring wellMW88/24/2010 -15 15 - 40 40 93.73 ---2"-diameter Type II monitoring wellMW98/24/2010 -15 15 - 40 40 94.92 ---2"-diameter Type II monitoring wellMW108/24/2010 -15 15 - 40 40 95.63 ---2"-diameter Type II monitoring wellMW118/24/2010 6/29/2022 15 15 - 40 40 94.12 29.68 0 64.44 2"-diameter Type II monitoring wellMW121/5/2011 6/29/2022 20 20 - 40 40 95.81 29.42 0 66.39 2"-diameter Type II monitoring wellMW131/5/2011 6/29/2022 20 20 - 40 40 94.01 27.89 0 66.12 2"-diameter Type II monitoring wellMW141/5/2011 6/29/2022 20 20 - 40 40 95.15 30.12 0 65.03 2"-diameter Type II monitoring wellMW151/5/2011 6/29/2022 20 20 - 40 40 96.50 29.13 0 67.37 2"-diameter Type II monitoring well
MW16 1/19/2011 -OC: 70 IC: 80 80-85 85 94.39 ---2"-diameter Type III monitoring wellMW179/26/2011 6/29/2022 15 15-35 35 84.80 20.99 0 63.81 2"-diameter Type II monitoring well
MW18 9/26/2011 -15 15-35 35 85.38 2"-diameter Type II monitoring wellMW199/26/2011 -20 20-35 35 84.25 ---2"-diameter Type II monitoring wellMW209/26/2011 -20 20-35 35 84.00 ---2"-diameter Type II monitoring wellMW213/22/2012 -20 20-40 40 85.78 ---2"-diameter Type II monitoring wellMW223/22/2012 -20 20-40 40 89.31 ---2"-diameter Type II monitoring well
MW23 8/27/2012 6/29/2022 15 15-35 35 83.77 22.87 0 60.90 2"-diameter Type II monitoring wellMW248/27/2012 -15 15-35 35 83.88 ---2"-diameter Type II monitoring wellMW258/27/2012 6/29/2022 15 15-35 35 81.39 22.25 0 59.14 2"-diameter Type II monitoring wellMW268/27/2012 -15 15-35 35 82.65 ---2"-diameter Type II monitoring wellMW278/28/2012 -3 3-23 23 60.94 ---2"-diameter Type II monitoring well
MW28 8/28/2012 -5 5-25 25 63.90 ---2"-diameter Type II monitoring wellRW11/21/2013 6/29/2022 20 20-50 50 95.28 29.04 0 66.24 4"-diameter groundwater recovery wellRW21/21/2013 6/29/2022 20 20-50 50 95.06 29.23 0 65.83 4"-diameter groundwater recovery wellRW31/21/2013 6/29/2022 20 20-50 50 96.29 29.24 0 67.05 4"-diameter groundwater recovery wellRW43/19/2014 6/29/2022 20 20-50 50 95.84 29.20 0 66.64 4"-diameter groundwater recovery well
RW5 3/19/2014 -20 20-50 50 96.09 ---4"-diameter groundwater recovery wellAS11/22/2013 -50 50-55 55 96.67 ---1"-diameter air sparge wellAS21/13/2015 -48 48-53 53 95.16 ---1"-diameter air sparge wellAS31/13/2015 -48 48-53 53 94.82 ---1"-diameter air sparge wellAS41/15/2015 -48 48-53 53 95.92 ---1"-diameter air sparge well
AS5 1/15/2015 -48 48-53 53 96.42 ---1"-diameter air sparge wellAS61/15/2015 -48 48-53 53 96.82 ---1"-diameter air sparge wellAS77/23/2020 -50 50-55 55 ----1"-diameter air sparge wellAS84/11/2022 -40 40-45 45 96.21 ---1"-diameter air sparge wellAS94/11/2022 -40 40-45 45 94.22 ---1"-diameter air sparge well
SVE1 1/22/2013 -5 5-30 30 95.52 ---2"-diameter soil vapor extraction wellSVE21/22/2013 -5 5-30 30 95.66 ---2"-diameter soil vapor extraction wellSVE31/14/2015 -5 5-30 30 96.08 ---2"-diameter soil vapor extraction wellSVE41/14/2015 -5 5-30 30 96.12 ---2"-diameter soil vapor extraction wellSVE51/14/2015 -5 5-30 30 95.88 ---2"-diameter soil vapor extraction well
SVE6 1/16/2015 -5 5-30 30 96.38 ---2"-diameter soil vapor extraction wellSVE71/16/2015 -5 5-30 30 96.38 ---2"-diameter soil vapor extraction wellSVE81/16/2015 -5 5-30 30 96.28 ---2"-diameter soil vapor extraction wellSVE91/16/2015 -5 5-30 30 96.56 ---2"-diameter soil vapor extraction wellSVE101/16/2015 -5 5-30 30 96.52 ---2"-diameter soil vapor extraction well
SVE11 1/16/2015 -5 5-30 30 96.50 ---2"-diameter soil vapor extraction wellSVE121/16/2015 -5 5-30 30 96.58 ---2"-diameter soil vapor extraction wellSVE131/19/2015 -5 5-30 30 97.04 ---2"-diameter soil vapor extraction wellSVE141/19/2015 -5 5-30 30 96.86 ---2"-diameter soil vapor extraction wellSVE151/19/2015 -5 5-30 30 96.76 ---2"-diameter soil vapor extraction well
SVE16 1/19/2015 -5 5-30 30 96.62 ---2"-diameter soil vapor extraction wellSVE171/19/2015 -5 5-30 30 96.84 ---2"-diameter soil vapor extraction wellSVE181/19/2015 -5 5-30 30 96.46 ---2"-diameter soil vapor extraction wellSVE191/19/2015 -5 5-30 30 96.40 ---2"-diameter soil vapor extraction wellNotes:
1. All units in feet.2. IC and OC refer to the inner and outercasings of the Type III well. 3. Existing well elevations were surveyed on September 17, 2012 by William Franklin Tatum of McAnally Land Surveying. Subsequent surveying by Terraquest.
MONITORING WELL CONSTRUCTION INFORMATIONIncident Name: Four Brothers 208 Incident No.: 30576
well destroyed
Table 8
Date: 11/29/22 Facility ID No. 0-021926
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID
Date
CollectedMW16/29/2022 2.18 122 35.6 297 < 1.10 < 1.00 1,760 9.32 < 0.950 107 777 24.3 56.3 343 < 5.00 < 120 451 < 3.50 < 2.65 4.33 6.9 < 3.55MW46/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 2.72 < 2.60 1.68 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 1.31 < 0.710
MW5 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
MW11 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
MW12 6/29/2022 2,710 23,000 3,380 18,700 < 22.0 < 20.0 < 1000 < 23.0 < 19.0 2,410 < 260 610 < 180 < 140 < 100 < 2400 979 < 70.0 127 82.8 361 < 71.0
MW13 6/29/2022 0.225 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
MW14 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710MW156/29/2022 878 3,400 943 7,140 < 4.40 < 4.00 < 200 43.1 < 3.80 872 < 52.0 280 < 36.0 < 28.0 < 20.0 < 480 354 < 14.0 35.7 < 15.2 71.6 < 14.2MW176/29/2022 0.654 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710MW236/29/2022 278 < 0.410 1.31 34.2 < 0.220 0.888 < 10.0 < 0.230 < 0.190 5.48 < 2.60 4.24 < 1.80 < 1.40 < 1.00 < 24.0 40 3.93 15.8 3.17 5.12 1.5MW256/29/2022 484 < 0.820 < 1.00 < 3.20 0.908 8.99 < 20.0 < 0.460 21.9 < 1.64 < 5.20 < 1.12 < 3.60 < 2.80 < 2.00 < 48.0 27.6 < 1.40 4.34 < 1.52 < 1.38 < 1.42RW16/29/2022 0.382 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710RW26/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 < 24.0 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710RW36/29/2022 401 378 20.3 1,860 < 1.10 2.88 < 50.0 91.9 13.8 314 47.7 136 31.8 97.1 < 5.00 < 120 150 < 3.50 < 2.65 < 3.80 < 3.45 < 3.55RW46/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 41.9 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
PW3 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 < 1.00 25.6 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
PW15 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 0.22 < 0.200 < 10.0 < 0.230 < 0.190 < 0.820 < 2.60 < 0.560 < 1.80 < 1.40 1.76 34.4 < 3.00 < 0.700 < 0.530 < 0.760 < 0.690 < 0.710
1 600 600 500 20 70 6,000 0.02 0.40 400 4,000 400 100 40 70 4,000 6 70 70 70 70 25
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 50 400 28,500 4,000,000 25,000 100,000 40,000 70,000 4,000,000 6,000 8,500 25,000 6,900 30,000 11,700
Notes:1. All results in ug/L. 2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation. 4. Italics indicates a GCL violation.5. < = denotes less than sample detection limit.p-Isopropyltoluene2L Standard
Gross Contamination Levels MIBK2-HexanoneChloroformEthanol2-Butanone (MEK)1,3,5-trimethylbenzeneisopropylbenzenen-Butylbenzenen-PropylbenzeneSUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical MethodContaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesMethyl tert-butyl etherIsopropyl EtherNaphthaleneSec-ButylbenzeneAcetone1,2-Dibromoethane1,2-Dichloroethane1,2,4-Trimethylbenzene

FIGURES

ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
SITE
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.
ENVIRONMENTAL CONSULTANTS, P.C.

APPENDIX A

Page 1 of 8 
 TECHNICAL METHODS/STANDARD PROCEDURES 

Equipment Decontamination 

All soil sampling equipment utilized during site assessment activities is decontaminated according 
to standard and accepted protocol.  Cleaning solutions range from clean potable water to acidic 
solutions or organic solvents depending on the contaminants present at the site.  Equipment 
utilized at sites, such as hand augers, contaminated with petroleum hydrocarbons, is generally 
decontaminated with a low‐sudsing detergent such as Luiquinox® and triple rinsed with distilled 
water.  Larger equipment, such as drill rigs and associated tools, is steam cleaned.  All 
decontamination procedures are completed within an established decontamination area which is 
located away from the active study area.  Frequency of equipment decontamination depends on 
the nature of work being performed, but in no case is decontamination performed less frequently 
than once per test (i.e., soil boring, well installation, sample collection, etc.).  Equipment blanks are 
collected as a quality control measure when required by job specifications. 

Soil Boring Installation 

Soil borings are completed using hand‐operated sampling tools, truck‐mounted drills, or 
Geoprobe® drilling rigs depending on the depth of sample collection and other site‐specific 
conditions.  Hand operated stainless‐steel bucket augers are utilized to collect soil samples at 
regular intervals to determine site stratigraphy and to test for the presence of volatile organic 
compounds.  Samples retrieved from the hand auger are necessarily disturbed during the augering 
process, but can provide accurate information on soil type and contaminant concentrations when 
properly interpreted.  Soil samples from hand augered borings are generally retrieved at one to 
two foot intervals. 

Truck‐mounted or Geoprobe® drilling equipment is often utilized when sample retrieval depths 
exceed twenty feet or subsurface conditions prevent utilization of hand augers (i.e., buried rocks, 
wood, bricks or other materials occur in the subsurface).  Truck‐mounted drilling rigs usually 
retrieve soil via a hollow‐stem auger/split spoon collection method.  Geoprobe® rigs usually employ 
a Macro‐Core® tube retrieval system.   

Hollow stem augers provide relatively undisturbed 2‐foot cores of soil samples.  Soil samples are 
generally collected at five foot intervals utilizing standard penetration test procedures as defined 
by the American Society for Testing and Materials (ASTM) or are pushed to the desired depth using 
the head of the drill rig.  The standard penetration test involves driving a 2" outside diameter by 1‐
3/8" inside diameter split‐spoon sampler a minimum distance of one foot with a 340‐lb. slide 
hammer falling a distance of 30 inches.   

A Geoprobe® rig is a hydraulically‐powered soil probing machine.  The probe utilizes static force 
and percussion to advance a small diameter sampling device into the subsurface.  The sampling 
apparatus provides relatively undisturbed 5‐foot cores of soil samples.  Soil samples are collected 
Page 2 of 8 
continuously.  The Macro‐Core® tube contains an inserted poly‐vinyl chloride (PVC) liner which 
retains the soil sample as the tube is driven into the ground.  The Macro‐Core® tube is 
decontaminated between each 5‐foot sample interval in a soil boring using a Liquinox and tap‐
water mixture.  A new PVC liner is used to collect soil from each sample interval in a soil boring.    

Soil samples retrieved from the hollow‐stem augers or Geoprobe are then carefully described 
according to the Unified Soil Classification System.  Soil descriptions are recorded on a soil 
boring log. 

Soil Sampling 

Soils to be analyzed by a North Carolina‐certified laboratory are prepared according to the specified 
analytical method.  Initially, soil samples are removed from the ground using either a hand auger, 
backhoe bucket, spilt spoon auger, or a Macro‐Core® sampling tube.  During the removal, care is 
taken to keep the disturbance of the soil structure to a minimum to reduce the loss of 
contaminants.  Once removed, the samples are placed in the proper sample container for the 
specified analytical method.  For samples collected for the MADEP VPH and EPA Method 8260, a 
TerraCore® sampler is used to collect one 5‐gram allotment of soil.  The allotment is placed in 
methanol‐preserved 40 mL vials.  Also, one 5‐gram allotment of soil is placed into sodium bisulfate‐
preserved 40 mL vials (one 5‐gram allotment per vial, 2 vials per sample) for the 8260 low 
concentration method.  A 250‐mL glass jar of the sampled soil is also collected to provide moisture 
content information.  Soils sampled for MADEP EPH, EPA Method 8270 and TPH 5030 and 3550 are 
placed in a 250‐mL glass jar (for MADEP EPH analysis an amber jar is required).  TPH 5030 samples 
are preserved in methanol similar to the 8260 analysis.  Field personnel wear new, disposable 
nitrile gloves during the collection of each sample.  

The soil samples are labeled with the sample location, sample identification, date and time of 
collection, and the analytical method.  The samples are placed on ice, sent to a laboratory, and 
analyzed before the expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody 
documentation is maintained for each sample collected in the field. 

If the soil is being sampled for volatile or semi‐volatile compounds, a portion of the collected soil is 
placed in a sealable bag and screened for volatile organic vapors.  Head screening procedures are 
described in the following paragraph.  

Headspace Screening 

Collected soil samples are routinely tested for the presence of volatile organic compounds (VOCs).  
After retrieval from the ground, a portion of a soil sample is placed in a sealable plastic bag.  The 
soil samples are then set aside for approximately five minutes so that volatile constituents present 
in the sample can reach equilibrium concentrations with headspace gases in the bag.  Once a 
suitable time period has passed, the probe of the sampling instrument, typically an Organic Vapor 
Monitor (OVM) or a Photo Ionization Detector (PID), is inserted into the bag and the relative 
concentration of total VOCs is measured and permanently recorded in a field note book.  VOC 
Page 3 of 8 
concentrations are measured using either a Thermo Electron Corp. Innova Series catalytic OVM or 
an Ion Science PhoCheck PID.  Both the OVM and PID instrumentation are periodically calibrated 
according to the manufacturer’s recommended procedures. 

The OVM and PID are qualitative tools employed to detect and estimate the concentration of 
organic or hydrocarbon vapors.  A thin probe is inserted through a small break in the seal of a 
bagged soil sample.  For the OVM, an air sample from the headspace of the bag is drawn through 
the probe into an internal chamber where the vapors are catalyzed.  The concentration of the VOCs 
is registered on a digital scale in parts per million (ppm).  For the PID, an air sample from the 
headspace of the bag is drawn across the face of a lamp causing the sample to emit photons, the 
presence of which are converted into a VOC ppm reading that is displayed.  Oxygen levels are field 
calibrated prior to each use.  VOC calibration occurs periodically depending upon use by using a 
span gas of known concentration in a process recommended by the manufacturer.   

Well Installation/Construction 

Monitoring wells are installed using hand‐operated sampling tools, a truck‐mounted drill rig, or a 
Geoprobe drilling rig depending on the depth of well and other site‐specific conditions. All 
monitoring wells are installed according to the requirements of 15A NCAC 2C‐Well Construction 
Standards.  Specifically, individual monitoring wells are constructed of 2‐inch diameter, schedule 40 
PVC casing riser and screen.  The screen interval is generally 10 to 15 feet of machine slotted PVC 
with a slot size of 0.010".  Only flush threaded joints are used.  The annulus space around the 
screen is filled with washed filter pack No. 2 sand.  The filter pack extends one to two feet above 
the top of the screen.  A one to two foot‐thick bentonite pellet seal is then placed above the filter 
pack.  The remainder of the well annulus is completely filled with a Portland (Type I/II) cement 
grout mixture.  A protective outer steel manhole, locking cap, and concrete pad is installed for each 
well. 

Type II Monitoring Well Construction  

Single‐cased monitoring wells are generally used in delineation of groundwater quality within the 
surficial aquifer.  The wells are constructed of 2‐inch diameter, schedule 40 PVC casing and screen.  
The screen interval is generally 10 to 15 feet of machine slotted PVC with a slot size of 0.010".  Only 
flush threaded joints are used.  The annulus space around the screen is filled with washed filter 
pack No. 2 sand.  The filter pack extends one to two feet above the top of the screen.  A one to two 
foot‐thick bentonite pellet seal is then placed above the filter pack.  The remainder of the well 
annulus is completely filled with a Portland (Type I/II) cement grout mixture.  A protective outer 
steel manhole, locking cap, and concrete pad are installed for each well. 

Type III Monitoring Well Construction 

Double‐cased monitoring wells are used in the delineation of groundwater quality within a deeper 
portion of the surficial aquifer or an additional aquifer (e.g. aquitard, bedrock).  A four to six‐inch 
outer casing is installed through the surficial aquifer until a sufficient depth or until the deeper 
Page 4 of 8 
aquifer is encountered.  The casing is secured with a Portland‐grout collar that is tremmied into the 
annular spaced from the bottom of the bore hole to the surface.  Once the grout has sufficiently 
cured, the bore hole is continued through the bottom of the outer casing to a depth approximately 
15 ‐ 20 feet beneath the outer casing.  The inner casing is constructed of 2‐inch diameter, schedule 
40 PVC casing riser and screen.  The screen interval is generally 5 to 10 feet of machine slotted PVC 
with a slot size of 0.010".  Only flush threaded joints are used.  The annulus space around the 
screen is filled with washed filter pack No. 2 sand.  The filter pack extends one to two feet above 
the top of the screen.  A one to two foot‐thick bentonite pellet seal is then placed above the filter 
pack.  The remainder of the well annulus is completely filled with the same Portland grout mixture 
used in the outer casing.  A protective outer steel manhole, locking cap, and concrete pad are 
installed for each well. 

Well Development 

Following installation of each well, surging and pumping or bailing techniques will be used to 
remove fines from the screened interval.  Groundwater is removed from each well until clear water 
is retrieved or a noticeable reduction in the amount of silt is achieved.  Purged groundwater is 
disposed of in an environmentally safe manner. 

Groundwater Sampling 

Petroleum Sites 

Groundwater samples are collected from temporary or permanent monitoring wells according to 
established sampling protocol.  When multiple monitoring wells or sampling points are sampled, 
sampling is completed beginning with the least contaminated well to the most contaminated well, 
if it is known.  When permanent monitoring wells for petroleum sites are sampled, the well is 
purged of a minimum of three well‐bore volumes prior to sample collection in order to assure that 
sampled water is representative of aquifer conditions.  In temporary wells, the first water which 
migrates into the open borehole is sampled.  Samples from both temporary and permanent 
monitoring wells are collected using individually wrapped disposable polyethylene bailers by field 
personnel wearing disposable nitrile gloves.  Only one well is sampled with a given bailer in order to 
prevent sample cross‐contamination.  During both well purging and sampling, proper protective 
clothing and equipment is used and is dependent upon the type and level of contaminants present. 
Also, field personnel change gloves between different samples to reduce the chance of cross‐
contamination. Water samples are transferred from the bailer to laboratory‐prepared sampling 
containers using slow emptying devices to reduce the chance of contamination loss through 
volatilization.  Preservatives, such as acids, are provided by the laboratory in pre‐prepared 
containers in which collected samples are placed if in‐field preservation is necessary.  The samples 
are labeled with the project name, project number, sample identification, required analysis, and 
date and time of collection.  The samples are placed on ice, shipped to a certified laboratory, and 
analyzed before the expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody 
documentation is maintained for each sample collected in the field.   

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Other Groundwater Sampling Protocols 

When required by state or federal regulations, low‐flow groundwater sampling procedures are 
instituted.  Groundwater samples collected in low‐flow situations are collected using a peristaltic 
pump. A peristaltic pump is a type of positive displacement pump. The fluid is contained within a 
flexible tube fitted inside a circular pump casing.  A rotor with a number of rollers attached to the 
external circumference compresses the flexible tube. As the rotor turns, the part of tube under 
compression closes thus forcing the fluid to be pumped to move through the tube.  Groundwater 
parameters such as water level drawdown, pH, conductivity, dissolved oxygen (DO) and turbidity. 
Pumping rate, drawdown, and the time or volume required to obtain stabilization of parameter 
readings can be used as a future guide to purge the well. Measurements are collected at a pre‐
pumping established interval (typically five to ten minutes). Once all or a majority of the 
parameters have stabilized for three successive readings, stabilization has been achieved. In lieu of 
measuring all five parameters, a minimum subset would include pH, conductivity, and turbidity or 
DO. Three successive readings should be within ± 0.1 for pH, ± 3% for conductivity, and ± 10% for 
turbidity and DO.  

Upon parameter stabilization, sampling is initiated. Sampling flow rate is maintained at the estab‐
lished purge rate or is adjusted slightly to minimize aeration, bubble formation, turbulent filling of 
sample bottles, or loss of volatiles due to extended residence time in tubing. The same device used 
for purging is used to collect the groundwater sample. Generally, volatile parameters are sampled 
first. The sequence in which samples for inorganic parameters are collected is not determined 
unless filtered (dissolved) samples are collected. Preservatives, such as acids, are provided by the 
laboratory in pre‐prepared containers in which collected samples are placed if in‐field preservation 
is necessary.  The samples are labeled with the project name, project number, sample 
identification, required analysis, and date and time of collection.  The samples are placed on ice, 
shipped to a certified laboratory, and analyzed before the expiration of an analytical method’s 
prescribed holding time.  Chain‐of‐custody documentation is maintained for each sample collected 
in the field.   

During both well purging and sampling, proper protective clothing and equipment is used and is 
dependent upon the type and level of contaminants present.   Also, field personnel change gloves 
between different monitoring wells or sampling points to reduce the chance of cross‐
contamination.  When multiple monitoring wells or sampling points are sampled, sampling is 
completed beginning with the least contaminated well to the most contaminated well, if it is 
known. 

Stockpile Sampling 

The number of composite samples collected from a stockpile or a total quantity of excavated soil is 
based upon the cubic yardage.  One composite sample is collected for every 100 cubic yards of 
contaminated soil excavated.  The volume of a stockpile or total quantity of excavated soil is 
calculated by approximating the general geometry of a stockpile or estimating the capacity of the 
Page 6 of 8 
dump trucks used for hauling.  If a stockpile is sampled, a grid pattern is laid out on the stockpile, 
dividing the stockpile into segments of approximately 200 cubic yards.  Two soil borings are 
advanced within a grid and three soil samples are collected from each soil boring at various depths. 
 The six soil samples are mixed into a composite sample by a trained TerraQuest technician.  If truck 
loads are sampled, an aliquot sample is collected from the hauling trucks at a frequency based 
upon the capacity of the hauling trucks.   

Aliquots are gently mixed into a composite sample by a trained TerraQuest technician. Every effort 
is made to minimize the loss of contaminants through volatilization.  The composited soil samples 
are jarred in the appropriate laboratory‐prepared containers, labeled with the sample location, 
sample identification, date of collection, time of collection, the analytical method, and the 
preservative.  The samples are placed on ice, shipped to a laboratory, and analyzed before the 
expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody documentation is 
maintained for each sample collected in the field. 

Surface Water Sampling 

Surface water samples, specifically samples from creeks or streams, are collected from a 
moving/flowing portion of the creek or stream to ensure that stagnant water is not collected.  Field 
personnel are careful to collect samples from flowing areas that are not so turbulent as to cause a 
loss of volatile contaminants which might have been contained in the creek’s/stream’s water.  
Samples are collected by field personnel wearing disposable nitrile gloves.  Field personnel change 
gloves between different locations to reduce the chance of cross‐contamination.  Samples are 
collected directly from the appropriate creek or stream location and placed into the appropriate 
laboratory‐prepared containers.  Preservatives, such as acids, are provided by the laboratory in pre‐
prepared containers in which collected samples are placed if in‐field preservation is necessary. The 
samples are labeled with the project name, project number, sample identification, required 
analysis, and date and time of collection.  The samples are cooled on ice to approximately four 
degrees centigrade, shipped to a certified laboratory, and analyzed before the expiration of an 
analytical method’s prescribed holding time.  Chain‐of‐custody documentation is maintained for 
each sample collected in the field.    

Potable Well Sampling 

Groundwater samples from potable wells are collected from sampling points, typically spigots, 
located in the closest proximity to the potable well pump house as possible.  Prior to sample 
collection, the water is run for a sufficient amount of time to purge the bladder tank and assure 
that sampled water is representative of aquifer conditions.  Once purged, the flow rate is reduced 
and samples are placed in the appropriate laboratory prepared containers with the appropriate 
acid preservatives added if preservation of the sample is necessary.  The samples are labeled with 
the project name, project number, sample identification, required analysis, and date and time of 
collection.  The samples are placed on ice, shipped to a laboratory, and analyzed before the 
expiration of an analytical method’s prescribed holding time.  Chain‐of‐custody documentation is 
maintained for each sample collected in the field.  
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Public Water Supply Line Sampling 

Groundwater samples from public water supply lines are collected from sampling points, typically 
spigots.  To sample the spigot, the flow rate is reduced and samples are placed in the appropriate 
laboratory prepared containers.  The samples are labeled with the sample location, sample 
identification, date of collection, time of collection, and required analytical method.  The samples 
are placed on ice, shipped to a laboratory, and analyzed before the expiration of an analytical 
method’s prescribed holding time.  Chain‐of‐custody documentation is maintained for each sample 
collected in the field.  

Air Sampling 

Air samples are collected with the aide of a manually operated MityVac® pump manufactured by 
Pristech, Inc.  The air sampling process begins by connecting a length of rubber hose from the 
MityVac® pump to the port to be sampled, or by hanging the hose inside of an emissions stack in 
such a manner as to ensure no outside air causes dilution.  Another length of hose is fixed to the 
outlet port of the pump and is connected to a new Tedlar bag.  Once the pump is hooked up, a 
valve on the Tedlar collection bag is opened and air is manually forced into the bag by the pumping 
action of sampling personnel.   

Field Measurements 

Field measurements taken to determine the pH, conductivity, temperature, and dissolved oxygen 
concentration of a particular groundwater sample are taken directly after a particular monitoring 
well has been adequately purged.  This ensures that the groundwater parameter data collected is 
representative of the aquifer conditions at a given location.  Once purging of the monitoring well is 
complete, the decontaminated probe head and cord of the appropriate unit is lowered into the 
required monitoring well.  If the depth to water in a specific monitoring well is greater than the 
length of cord for a particular unit, a new, disposable bailer is slowly lowered into the appropriate 
monitoring well and a representative groundwater sample is retrieved.  A slow pouring device is 
fitted onto the end of the disposable bailer and the sample is slowly poured into a new, disposable 
plastic cup.  Groundwater parameter data are then collected from the groundwater in the cup 
using the required unit.   

For pH, conductivity, and temperature, a Hanna Instruments Model 991300 portable meter is 
utilized.  This unit is periodically calibrated and maintained in accordance with the unit’s operations 
manual by field personnel.  Prior to data collection, the unit is properly decontaminated to prevent 
cross‐contamination.  The unit is decontaminated between each sample.  The procedure used for 
sample measurement involves lowering the meter’s probe into the new, disposable cup containing 
the groundwater sample to be measured and slowly stirring the probe to force groundwater across 
the probe’s membrane.  The measurements displayed by the meter are then recorded.   

For dissolved oxygen concentration measurements, a YSI® Model 55 Handheld Dissolved Oxygen 
System is utilized.  This unit is periodically calibrated and maintained in accordance with the unit’s 
Page 8 of 8 
operations manual by field personnel.  Prior to data collection, the unit is properly decontaminated 
to prevent cross‐contamination.  The unit is decontaminated between each sample.  The procedure 
used for sample measurement involves adjusting the unit for the correct altitude where the 
sampling will take place and adjusting the reported units desired.  Once this is done, the unit’s 
probe is inserted into the groundwater sample to be measured and the probe is slowly stirred to 
force the groundwater across the probe’s membrane.  The measurements displayed by the unit are 
then recorded.   

For turbidity measurements, a Hach 2100P Portable Turbidity meter or equal equivalent is utilized.  
The unit is calibrated prior to use in accordance with the unit’s operations manual by field 
personnel.  Groundwater samples are collected in glass containers for measurement by the 
instrument.  The glass containers are washed with bottled‐water between each measurement 
collection.  Once the sample is collected and inserted into the instrument, the measurements 
displayed by the instrument are then recorded.   

APPENDIX B

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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CHRONOLOGICAL SITE HISTORY
FOUR BROTHERS FOOD STORE # 208
4975 REYNOLDA ROAD
WINSTON-SALEM, FORSYTH COUNTY, NC 27106
Latitude: 36.2163° Longitude: -80.4960°
Facility ID No. 0-021926
NCDWM-UST Incident No. 30576
NCDWM-UST Risk Ranking: HIGH 287D
Terraquest Project No. 01205

1961 The 4975 Reynolda Road (future #208 property) appears to be
undeveloped on an aerial photograph.

1966 The future #208 property is developed. The aerial photograph shows a
building and many cars on the site. Terraquest believes the original use
of the property was a car lot.

1970 The future #208 property has a visible pump island and appears to be
operating as a gasoline station. Two (2) 1,000-gallon and two (2) 6,000-
gallon gasoline USTs were installed on the property. The property and
UST system were owned by J.W. Hager.

August 21, 1987 Beroth Oil Company, Inc. purchased the property.

May 31, 1988 UST system consisting of three 10,000-gallon gasoline, one 4,000-gallon
diesel UST, and one 2,000-gallon kerosene USTs was installed.

March 25, 2005 Terraquest performed a Phase II ESA of the UST system. The Phase II ESA
was completed for Beroth as part of an environmental base line for a
possible property transaction. The analytical results of the collected soil
samples revealed the presence of petroleum-type compounds in four of
the nineteen samples.

June 3, 2005 Terraquest submitted a UST61 Form (24-Hour Release and UST Leak
Reporting Form) to the NCDWM-UST.

June 9, 2005 Terraquest submitted a Phase II Environmental Site Assessment Report to
the NCDWM-UST.

June 5, 2008 Based upon a review of the Phase II ESA, the NCDWM-UST issued an
NORR dated that requested the completion of a site check.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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August 25, 2008 Terraquest supervised the advancement of additional soil borings (B1A,
B8A, and B9A) and the collection of soil samples from those borings on.
A Type II groundwater monitoring well (MW1) was also installed and a
sample collected and submitted for laboratory analysis. The analytical
results of both the soil and groundwater samples confirmed the presence
of petroleum-type contamination at concentrations in excess of the STG
MSCCs and the GCLs, respectively.

September 3, 2008 National Tank Monitor, Inc. of Vilonia, AR performed tank tightness tests
on all of the product lines and USTs. Results of the tests reveal that all of
the product lines and USTs passed the testing.

December 18, 2008 Terraquest submitted an IAAR to the NCDWM-UST. That report
summarized the discovery of gasoline and diesel releases in the vicinity of
gasoline and diesel dispenser islands associated with the UST system.

March 12, 2010 Terraquest submitted an LSA Report to the NCDWM-UST. The LSA
concluded that the site should be ranked a High Risk based on the
presence of sole-source potable wells within 1,000 feet of the release
incident. The LSA noted that municipal water is not available to several
of the potable well properties.

May 7, 2010 Terraquest sent correspondences involving access to the 5000 Reynolda
Road property.

May 14, 2010 Terraquest sent a revised access agreement form to three of the four
5000 Reynolda Road property owners.

May 18, 2010 Terraquest received a correspondence from one of the four 5000
Reynolda Road property owners regarding changes required to the
agreement form.

June 29, 2010 Terraquest received an access agreement to the 5000 Reynolda Road
property signed by one of the four owners.

June 30, 2010 Terraquest sent a correspondence involving access to the 5000 Reynolda
Road property.

July 12, 2010 Terraquest received a signed agreement for access to the 5000 Reynolda
Road property.

July 12, 2010 Terraquest submitted an Application for Permit to Construct a
Monitoring Well System to the NCDENR-DWQ.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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July 22, 2010 The NCDENR-DWQ issued a monitoring well construction permit for the
construction of one monitoring well on the 5000 Reynolda Road
property.

August 23-25, 2010 Terraquest supervised the installation of one Type III (MW5) and six Type
II (MW6-11) groundwater monitoring wells. Groundwater samples from
those wells were submitted for laboratory analysis where free product
was not present. Soil samples were also collected from seven soil
borings.

October 7, 2010 Terraquest submitted a Pre-CAP Monitoring Report to the NCDWM-UST.
That report detailed the collection of soil and groundwater samples from
seven borings and seven wells and the completion of an MMPE event.
The MMPE event was successful at removing 357 gallons of free product.
The report recommended additional soil and groundwater assessment to
complete the CSA.

January 4-5, 2011 Terraquest personnel supervised the advancement of seven soil borings
(B26 – B32) and the installation of four Type II monitoring wells (MW12 –
MW15). Collected soil samples were submitted for laboratory analysis.

January 14, 2011 Terraquest personnel performed slug tests on monitoring wells MW6,
MW7, and MW9.

January 18-19, 2011 Terraquest personnel supervised the installation of one Type III
monitoring well (MW16).

January 20, 2011 Terraquest personnel collected groundwater samples from the newly
installed groundwater monitoring wells (MW12 – MW16). Groundwater
samples from those wells were submitted for laboratory analysis where
free product was not present.

March 21 –
April 1, 2011 Two, one week MMPE events were conducted at the site. The MMPE
events were successful at removing 20,654 gallons of contaminated
groundwater. A total of 486.87 gallons of petroleum was calculated to
have been volatilized out of the vacuum pump stack during the MMPE
events.

September
26 – 27, 2011 Terraquest supervised the installation of four Type II groundwater
monitoring wells (MW17 – MW20). Groundwater samples from those
wells were submitted for laboratory analysis.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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March 16, 2012 Brad Kelley of Blue Café located adjacent to the site has stated that he
wishes to continue use of his well located within 1,000 feet of the release
incident for potable purposes.

March 22, 2012 Terraquest supervised the installation of two Type II groundwater
monitoring wells (MW21 & MW22).

March 26, 2012 Terraquest personnel collected groundwater samples from monitoring
wells MW1 – MW22 and were submitted for laboratory analysis where
free product was not present.

March 28, 2012 Terraquest sent out letters/survey forms to water supply well owners
inquiring if they would be interested in connecting to the municipal water
system and/or abandoning their wells.

April 2-13, 2012 Two, one week MMPE events were conducted at the site. The MMPE
events were successful at removing 19,338 gallons of contaminated
groundwater. A total of 133.92 gallons of petroleum was calculated to
have been volatilized out of the vacuum pump stack during the MMPE
events.

April 23, 2012 A Free Product Recovery Report was submitted to the NCDWM-UST to
document the February 17-28, 2013 MMPE events.

August 27-28, 2012 Terraquest personnel supervised the installation of groundwater
monitoring wells MW23-28.

August 29, 2012 Terraquest personnel collected groundwater samples from monitoring
wells MW23-28 and submitted them for laboratory analyses.

September 27, 2012 Terraquest reported the August 29, 2012 sampling event to the NCDWM-
UST in a Pre-CAP Groundwater Monitoring Report.
January 21, 2013 Terraquest personnel supervised the installation of monitoring well RW3
for use as an observation well during the air sparge pilot test and future
use as an MMPE extraction point and data monitoring point. Recovery
well RW1 and observation/MMPE extraction/monitoring well RW2 were
also installed.

January 22, 2013 Terraquest personnel supervised the installation of SVE pilot test wells
SVE1 and SVE2 and air sparge well AS1.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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January 28, 2013 Terraquest personnel submitted groundwater samples from MW2-11,
MW13, MW14, and MW16-28 for laboratory analysis. Free product was
detected in wells MW1, MW12, MW15, and RW1.

January 29, 2013 Terraquest personnel performed an air sparge pilot test at the site.

January 30, 2013 Terraquest personnel performed an SVE pilot test at the site.

February 4-5, 2013 Terraquest personnel performed step and aquifer pumping tests at the
site.

February 17-28, 2013 Two, one week MMPE events were conducted at the site. The MMPE
events were successful at removing 27,689 gallons of contaminated
groundwater. A total of 758.87 gallons of petroleum was calculated to
have been volatilized out of the vacuum pump stack during the MMPE
events.

March 7, 2013 Terraquest submitted a Pre-CAP Monitoring Report to the NCDWM-UST
that detailed the January 28, 2013 sampling event and subsequent pilot
testing.
March 8, 2013 A Free Product Recovery Report was submitted to the NCDWM-UST to
document the February 17-28, 2013 MMPE events.

October 17, 2013 Terraquest personnel submitted a Corrective Action Plan to the NCDWM-
UST. Public notification was provided as required.

February 10-19, 2014 An MMPE event was conducted at the site. The MMPE event was
successful at removing 7,803 gallon of contaminated groundwater/free
product emulsion and 2 gallons of free product. A total of 547.75 gallons
of petroleum was calculated to have been volatilized out of the pump
stack during the MMPE event.

March 19, 2014 Terraquest personnel installed recovery wells RW4 and RW5.

March 20, 2014 Terraquest personnel collected groundwater samples from the entire
monitoring well network (except for those wells containing free product)
and from potable well PW1 – PW4.

April 14, 2014 Terraquest personnel collected water samples from potable well PW1
both before and after the POE carbon system.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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August 4 - 15, 2014 Two, one-week MMPE events were conducted at the site.

Sept. 8 – 19, 2014 Two one-week MMPE events were conducted at the site.

September 22, 2014 Terraquest personnel collected groundwater samples from the entire
monitoring well network (except for those wells containing free product)
and from potable wells PW1 – PW4.

February 25, 2015 Terraquest personnel collected groundwater samples from the entire
monitoring well network (except for those wells containing free product)
and from potable wells PW1 – PW4. Monitoring well MW28 could not be
accessed during the sampling event and was not sampled.

March 11, 2015 Terraquest personnel collected a groundwater sample from monitoring
well MW28.

April 9, 2015 SVE and air sparge treatment system brought online.

September 22, 2015 Terraquest personnel collected groundwater samples from the entire
monitoring well network and from potable wells PW1 – PW4. PW1 was
sampled before and after the POE system.

December 17, 2015 Terraquest personnel collected groundwater samples from the entire
monitoring well network and from potable wells PW1 – PW4. PW1 was
sampled before and after the POE system. Monitoring well MW19 could
not be accessed during the event and could not be sampled.

December 21, 2015 Terraquest personnel collected a groundwater sample from monitoring
well MW19.

March 14, 2016 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

September 14, 2016 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

March 14, 2017 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

September 1, 2017 Final inspection was complete on the connection of the PW2 property to
the municipal water supply system. The potable well PW2 is currently
inactive but disconnected from the residence.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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September 14, 2017 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

April 5, 2018 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

October 8, 2018 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

May 16, 2019 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

September 2019 Terraquest and Beroth Oil Company provide offsite property owner Brad
Kelley with a property access agreement.

October 22, 2019 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

November 2019 Terraquest provides a summary of the water connection process to the
offsite property owner, Mr. Brad Kelley who requests another access
agreement. One is sent to him again.

December 23, 2019 Property access and well abandonment agreement received from Brad
Kelley.

January 6, 2020 Pre-approval of costs is granted to obtain bids for, 1. Utility work for
water tap and line to property, 2. Plumbing work to set meter and
connect with building for connecting 4995 Reynolda Rd to city water.

January 22, 2020 Terraquest sent bid solicitations to all licensed utility contractors
provided by the City of Winston-Salem as qualified to do the work for
connecting 4995 Reynolda Rd to city water.

January 25, 2020 Evans Construction and Utility Inc submits a bid to do the 4995 Reynolda
Rd municipal water connection.

January 26, 2020 Terraquest receives notice that Breece Enterprises, Inc. will not be
bidding on the 4995 Reynolda Rd municipal water connection. Too busy.

February 7, 2020 Terraquest submits a System Enhancement Report to the NCDWM-UST.
Terraquest proposed to first increase the air sparge flow from 1 cfm to 4-
5 cfm in air sparge wells located near the subject areas. If that increase is

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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not effective, an additional air sparge well should be installed at each
location.

February 25, 2020 Terraquest called each of the utility vendors for connecting 4995
Reynolda Rd to city water.

Bodenheimer Plumbing, O'Brien Southern Trenching, Inc., Ramey, Inc,
and Backhoe & Utility Services said they are too busy or not interested in
bidding.

April 17, 2020 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

July 23, 2020 Terraquest personnel supervised the installation of air sparge well AS7.

August 12-13, 2020 Terraquest supervised the trenching of new air line from air sparge well
AS6 to the new air sparge well AS7. Air sparge well AS7 was activated at
a flow of 4 scfm.

August 19, 2020 Silas Ridge Construction Services, Inc. tapped the water main and ran 1”
copper to right-of-way and stubbed up for the water meter toward
connection of the 4995 Reynolda Rd property. DOT ROW encroachment
had previously been secured as had a Covid workplan.

October 5-9, 2020 Terraquest supervised the closure via excavation and removal of the UST
system. No USTs remain onsite.

October 13, 2020 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

November 19, 2020 Plumbing work toward connection of 4995 Reynolda Rd property
conducted onsite. Trenching from meter to building, meter passed
inspection, backfilled and gravel down except right at building where
they need to still connect and run hose bib.

December 17, 2020 Plumber states that water is on to the building and tested.

April 19, 2021 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

July 6, 2021 At the direction of the NCDWM-UST, the treatment system is turned off.

August 12, 2021 Terraquest permanently abandoned water supply well PW1.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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October 7, 2021 Terraquest personnel sampled all monitoring wells of the network as
directed by the NCDWM-UST. This is in anticipation of it being the last
sampling event.

November 12, 2021 Terraquest submitted a Monitoring Report to the NCDWM-UST detailing
the October 2021 sampling event. The October 2021 analytical results
revealed the continued presence of 2L Standard violations and rebound
of GCL violation concentrations that have historically been present but
were absent last event in April 2021. Terraquest recommends turning
the system back on, injection of OBC in the core, and the installation and
operation of two air sparge wells.

December 13, 2021 Following review of the October 2021 groundwater quality data, the
NCDWM-UST requests that the treatment system be turned back on and
that two air sparge wells be added. Terraquest’s recommendation for
injection is heard but requested to be put off until the outcome of
additional sparge wells is seen.

December 21, 2021 Terraquest restarted the treatment system.

April 5, 2022 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

April 11, 2022 Terraquest supervised the installation of two 1”-diamter air sparge wells,
AS8 and AS9. The wells were 45 feet in total depth, with screened
intervals from 40-45 feet.

April 20, 2022 Terraquest supervised Piedmont Industrial Services, Inc. who installed
trenching and piping to provide recently installed air sparge wells AS8
and AS9 with compressed air. The system was left running throughout
and the new sparge wells were turned on that day.

June 29, 2022 Terraquest personnel sampled select wells of the monitoring well
network as directed by the NCDWM-UST.

MMPE events to date are summarized on the following page.

100 East Ruffin Street, Mebane, North Carolina 27302
Telephone [phone] ·Facsimile [phone]
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MMPE:

7/26-30/2010 Product was recovered from monitoring well MW1 and MW2. A total of
3,090 gallons of a contaminated groundwater/free product emulsion
were recovered during the event. A total of 90 gallons of free-phase
product was measured floating in the tanker. Additionally, 267 gallons of
petroleum was calculated to have been volatilized out of the vacuum
pump stack during the MMPE event.

3/21-4/1/2011 Two, one week MMPE events were conducted at the site. During the
event free product and contaminated groundwater was extracted from
monitoring wells MW1, MW2, MW3, MW4, MW12, MW13, and MW14.
The MMPE events were successful at removing 20,654 gallons of
contaminated groundwater. A total of 486.87 gallons of petroleum was
calculated to have been volatilized out of the vacuum pump stack during
the MMPE events.

4/2-13/2012 Two, one-week MMPE events were conducted at the site. The MMPE
events were successful at removing 19,338 gallons of contaminated
groundwater. A total of 133.92 gallons of petroleum was calculated to
have been volatilized out of the vacuum pump stack during the MMPE
events.

2/17-28/2013 Two, one week MMPE events were conducted at the site. The MMPE
events were successful at removing 27,689 gallons of contaminated
groundwater. A total of 758.87 gallons of petroleum was calculated to
have been volatilized out of the vacuum pump stack during the MMPE
events.

2/10-19/2014 An MMPE event was conducted at the site. The MMPE event was
successful at removing 7,803 gallon of contaminated groundwater/free
product emulsion and 2 gallons of free product. A total of 547.75 gallons
of petroleum was calculated to have been volatilized out of the pump
stack during the MMPE event.

8/4-15/2014 Two, one-week MMPE events were conducted at the site.

9/8-19/2014 Two, one-week MMPE events were conducted at the site.

APPENDIX C

Page 1 of 3
Well ID MW1 100.00 31.75 0.00 68.25 31.84 2 69.62 34.04 3.40 68.44 30.93 0.46 69.41 31.99 1.17 68.86 31.75 0.75 68.80 31.37 1.39 69.65MW299.1 ---30.61 0 68.49 ---30.40 0.12 68.79 30.89 0.19 68.35 30.95 0.17 68.27 30.01 0.08 69.15MW399.84 ---31.06 0 68.78 ---30.83 0 69.01 31.25 0 68.59 ---30.41 0 69.43MW4100.92 ---31.54 0 69.38 ---29.90 0.06 71.06 30.70 0.01 70.23 30.74 0.02 70.19 29.80 0.01 71.13MW598.28 ------------31.17 0 67.11 ---30.44 0 67.84MW6101.46 ---------30.38 0 71.08 30.66 0 70.80 ---29.82 0 71.64MW7101.4 ---------29.50 0 71.90 30.36 0 71.04 ---29.47 0 71.93MW897.7 ---------25.43 0 72.27 26.57 0 71.13 ---25.61 0 72.09MW998.82 ---------31.55 0 67.27 31.69 0 67.13 ---30.91 0 67.91MW1099.54 ---------31.22 0 68.32 31.33 0 68.21 ---30.56 0 68.98MW1198.04 ---------30.08 0 67.96 30.38 0 67.66 ---29.59 0 68.45MW1299.72 ------------30.68 0.01 69.05 31.00 0.19 68.86 30.32 0.42 69.71MW1397.91 ------------29.52 0 68.39 ---28.64 0 69.27MW1499.04 ------------31.23 0 67.81 ---30.37 0 68.67MW15100.43 ------------30.31 0.01 70.13 30.38 0.04 70.08 29.49 0.1 71.01MW1698.11 ------------31.68 0 66.43 ---31.05 0 67.06MW1788.66 -------------21.76 0 66.90 20.90 0 67.76MW1889.23 -------------22.25 0 66.98 21.40 0 67.83MW1988.1 -------------21.83 0 66.27 20.92 0 67.18MW2087.83 -------------22.23 0 65.60 21.47 0 66.36MW2189.55 ----------------27.03 0 62.52MW2293.07 ----------------30.00 0 63.07
Well ID MW1 96.07 31.37 1.39 65.72 31.37 1.39 65.72 31.69 1.25 65.29 29.09 0.16 67.10 30.5 0.02 65.58 30.29 0.03 65.80 31.45 0 64.62MW295.20 30.01 0.08 65.25 30.01 0.08 65.25 30.33 0 64.87 28.67 0 66.53 30.2 0 65.00 29.94 0 65.26 ---MW3 95.87 30.41 0 65.46 30.41 0 65.46 30.77 0 65.10 29.15 0 66.72 30.71 0 65.16 30.49 0 65.38 ---MW4 96.90 29.80 0.01 67.11 29.80 0.01 67.11 30.29 0 66.61 28.19 0 68.71 29.69 0 67.21 29.7 0 67.20 ---MW5 94.23 30.44 0 63.79 30.44 0 63.79 30.65 0 63.58 29.37 0 64.86 30.94 0 63.29 30.55 0 63.68 ---MW6 97.60 29.82 0 67.78 29.82 0 67.78 30.3 0 67.30 28.52 0 69.08 30.34 0 67.26 29.9 0 67.70 ---MW7 97.43 29.47 0 67.96 29.47 0 67.96 29.76 0 67.67 27.78 0 69.65 29.39 0 68.04 29.48 0 67.95 ---MW8 93.73 25.61 0 68.12 25.61 0 68.12 26.47 0 67.26 24.18 0 69.55 25.06 0 68.67 25.5 0 68.23 ---MW9 94.92 30.91 0 64.01 30.91 0 64.01 31.08 0 63.84 29.68 0 65.24 31.43 0 63.49 30.94 0 63.98 ---MW10 95.63 30.56 0 65.07 30.56 0 65.07 30.75 0 64.88 29.42 0 66.21 31.16 0 64.47 30.61 0 65.02 ---MW11 94.12 29.59 0 64.53 29.59 0 64.53 29.83 0 64.29 28.33 0 65.79 29.95 0 64.17 29.6 0 64.52 ---MW12 95.81 30.32 0.42 65.80 30.32 0.42 65.80 30.81 0.41 65.30 28.65 0 67.16 30.07 0 65.74 29.98 0 65.83 30.14 0 65.67MW1394.01 28.64 0 65.37 28.64 0 65.37 29.05 0 64.96 27.34 0 66.67 28.7 0 65.31 28.62 0 65.39 ---MW14 95.15 30.37 0 64.78 30.37 0 64.78 30.69 0 64.46 29.05 0 66.10 30.67 0 64.48 30.35 0 64.80 ---MW15 96.50 29.49 0.1 67.08 29.49 0.1 67.08 29.9 0.05 66.64 27.94 0.07 68.61 29.47 0 67.03 29.42 0.02 67.09 29.83 0.01 66.68MW1694.39 31.05 0 63.34 31.05 0 63.34 31.22 0 63.17 30.08 0 64.31 31.58 0 62.81 31.1 0 63.29 ---MW17 84.80 20.90 0 63.90 20.90 0 63.90 21.09 0 63.71 19.88 0 64.92 21.25 0 63.55 20.88 0 63.92 ---MW18 85.38 21.40 0 63.98 21.40 0 63.98 21.63 0 63.75 20.12 0 65.26 21.68 0 63.70 21.36 0 64.02 ---MW19 84.25 20.92 0 63.33 20.92 0 63.33 21.14 0 63.11 19.83 0 64.42 21.22 0 63.03 20.9 0 63.35 ---MW20 84.00 21.47 0 62.53 21.47 0 62.53 21.64 0 62.36 20.43 0 63.57 21.82 0 62.18 21.5 0 62.50 ---MW21 85.78 27.03 0 58.75 27.03 0 58.75 27.17 0 58.61 26.2 0 59.58 27.58 0 58.20 26.94 0 58.84 ---MW22 89.31 30.00 0 59.31 30.00 0 59.31 30.11 0 59.20 29.07 0 60.24 30.4 0 58.91 30.02 0 59.29 ---MW23 83.77 23.50 0 60.27 23.50 0 60.27 22.75 0 61.02 21.68 0 62.09 23.13 0 60.64 22.69 0 61.08 ---MW24 83.88 24.40 0 59.48 24.40 0 59.48 23.4 0 60.48 22.49 0 61.39 24.07 0 59.81 23.58 0 60.30 ---MW25 81.39 22.83 0 58.56 22.83 0 58.56 21.95 0 59.44 21 0 60.39 22.51 0 58.88 22.01 0 59.38 ---MW26 82.65 23.36 0 59.29 23.36 0 59.29 22.28 0 60.37 21.44 0 61.21 23.12 0 59.53 22.56 0 60.09 ---MW27 60.94 6.84 0 54.10 6.84 0 54.10 6.37 0 54.57 5.93 0 55.01 7.41 0 53.53 7.14 0 53.80 ---MW28 63.90 9.80 0 54.10 9.80 0 54.10 9.26 0 54.64 8.58 0 55.32 9.71 0 54.19 ------RW1 95.28 ------30.19 0.04 65.12 28.55 0.27 66.93 29.8 0 65.48 29.65 0 65.63 30.33 0.01 64.96RW295.06 ------30.16 0 64.90 ---30.01 0 65.05 29.8 0 65.26 ---RW3 96.29 ------30.16 0 66.13 ---29.96 0 66.33 29.78 0 66.51 ---RW4 95.84 ---30.5 0.01 65.35 30.55 0.35 65.55 31.67 0 64.17RW596.09 ---30.19 0 65.90 30.08 0 66.01 30.72 0 65.37Notes:1. All measurements are in feet. 2. Groundwater elevations are corrected for the presence of free product as follows: [Top of Casing Elevation - Depth to Water] + [Free Product Thickness x 0.7305]. 3. Well elevations were changed with an updated survey on September 17, 2012 by William Franklin Tatum of McAnally Land Surveying.
8/5/2008 3/6/2009
Free Product Thickness Free Product Thickness
9/18/2009
Depth to Water Free Product Thickness Groundwater Elevation
8/25/2010
Depth to Water Free Product Thickness Groundwater Elevation
8/29/2012
Casing Elevation Depth to Water Free Product Thickness Groundwater Elevation
1/28/2013
Casing Elevation Depth to Water Groundwater Elevation Depth to Water Groundwater Elevation
Depth to Water Free Product Thickness Groundwater Elevation
3/26/2012
Depth to Water Free Product Thickness
3/26/2012
Depth to Water Free Product Thickness Groundwater Elevation
9/27/2011
Depth to Water Free Product Thickness Groundwater Elevation
1/20/2011
Depth to Water Free Product Thickness Groundwater Elevation
2/25/2015
Depth to Water Free Product Thickness Groundwater Elevation
6/17/2015
Depth to Water Free Product Thickness Groundwater ElevationGroundwater Elevation
3/20/2014
Depth to Water Free Product Thickness Groundwater Elevation
9/22/2014
Depth to Water Free Product Thickness Groundwater Elevation
HISTORICAL GROUNDWATER ELEVATION DATAIncident Name: Four Brothers 208 Incident No.: 30576
Page 2 of 3
HISTORICAL GROUNDWATER ELEVATION DATAIncident Name: Four Brothers 208 Incident No.: 30576
Well ID MW1 96.07 31.20 0 64.87 30.33 0 65.74 28.26 0 67.81 29.90 0 66.17 29.12 0 66.95 27.22 0 68.85 29.85 0 66.22MW295.20 30.59 0 64.61 29.74 0 65.46 27.89 0 67.31 29.43 0 65.77 29.55 0 65.65 28.47 0 66.73 ---MW3 95.87 30.93 0 64.94 29.98 0 65.89 28.45 0 67.42 28.45 0 67.42 ---30.36 0 65.51 ---MW4 96.90 30.43 0 66.47 29.45 0 67.45 27.60 0 69.30 29.16 0 67.74 29.56 0 67.34 29.27 0 67.63 29.45 0 67.45MW594.23 31.48 0 62.75 30.44 0 63.79 ---30.62 -63.61 30.63 0 63.61 30.32 0 63.91 30.33 0 63.90MW697.60 31.13 0 66.47 29.70 0 67.90 ---------------MW7 97.43 30.39 0 67.04 29.34 0 68.09 ---------29.25 0 68.18 ---MW8 93.73 26.26 0 67.47 25.37 0 68.36 ---------------MW9 94.92 32.05 0 62.87 30.77 0 64.15 29.51 0 65.41 31.40 0 63.52 31.07 0 63.85 31.40 0 63.52 ---MW10 95.63 31.75 0 63.88 30.33 0 65.30 ---30.98 0 64.65 30.69 0 64.65 31.02 0 64.61 ---MW11 94.12 30.62 0 63.50 29.25 0 64.87 27.96 0 66.16 29.66 0 64.46 29.47 0 64.65 29.07 0 65.05 29.57 0 64.55MW1295.81 30.58 0 65.23 29.75 0 66.06 27.95 0.1 67.93 29.83 0.1 66.05 30.02 0 65.79 29.40 0 66.41 29.88 0 65.93MW1394.01 29.42 0 64.59 28.42 0 65.59 26.79 0 67.22 28.37 0 65.64 28.51 0 65.50 28.60 0 65.41 28.52 0 65.49MW1495.15 31.20 0 63.95 30.23 0 64.92 28.60 0 66.55 30.29 0 64.86 30.21 0 64.94 29.75 0 65.40 30.23 0 64.92MW1596.50 30.47 0 66.03 29.37 0 67.13 27.46 0 69.04 29.33 0 67.17 29.28 0 67.22 29.00 0 67.50 29.30 0 67.20MW1694.39 32.12 0 62.27 30.90 0 63.49 29.96 0 64.43 29.96 0 64.43 31.19 0 63.20 31.38 0 63.01 ---MW17 84.80 21.90 0 62.90 20.73 0 64.07 19.50 0 65.30 21.18 0 63.62 21.00 0 63.80 20.81 0 63.99 20.86 0 63.94MW1885.38 23.33 0 62.05 21.18 0 64.20 19.90 0 65.48 21.56 0 63.82 21.49 0 63.89 21.34 0 64.04 ---MW19 84.25 21.84 0 62.41 20.68 0 63.57 19.55 0 64.70 19.55 0 64.70 ---------MW20 84.00 22.40 0 61.60 21.28 0 62.72 20.23 0 63.77 21.75 0 62.25 21.58 0 62.42 21.64 0 62.36 ---MW21 85.78 27.90 0 57.88 26.77 0 59.01 26.00 0 59.78 27.35 0 58.43 27.07 0 58.71 27.20 0 58.58 ---MW22 89.31 30.96 0 58.35 29.88 0 59.43 29.02 0 60.29 30.31 0 59.00 30.17 0 59.14 30.25 0 59.06 ---MW23 83.77 23.65 0 60.12 22.50 0 61.27 21.60 0 62.17 23.03 0 60.74 22.84 0 60.93 22.97 0 60.80 22.61 0 61.16MW2483.88 24.60 0 59.28 23.35 0 60.53 22.58 0 61.30 24.00 0 59.88 23.86 0 60.02 23.93 0 59.95 ---MW25 81.39 22.98 0 58.41 21.80 0 59.59 21.10 0 60.29 22.48 0 58.91 22.17 0 59.22 22.33 0 59.06 21.86 0 59.53MW2682.65 23.60 0 59.05 22.30 0 60.35 ---------------MW27 60.94 7.59 0 53.35 6.71 0 54.23 6.20 0 54.74 7.37 0 53.57 6.97 0 53.97 6.97 0 53.97 ---MW28 63.90 10.50 0 53.40 9.13 0 54.77 8.77 0 55.13 9.75 0 54.15 9.39 0 54.51 9.53 0 54.37 8.58 0 55.32RW195.28 30.5 0 64.78 29.75 0 65.53 27.73 0 67.55 29.35 0 65.93 29.68 0 65.60 29.17 0 66.11 29.51 0 65.77RW295.06 30.48 0 64.58 29.43 0 65.63 27.78 0 67.28 29.35 0 65.71 29.29 0 65.77 28.15 0 66.91 29.35 0 65.71RW396.29 30.62 0 65.67 29.55 0 66.74 27.85 0 68.44 29.58 0 66.71 29.69 0 66.60 26.07 0 70.22 29.6 0 66.69RW495.84 30.7 0 65.14 30.11 0 65.73 27.92 0 67.92 29.69 0 66.15 29.51 0 66.33 27.3 0 68.54 29.63 0 66.21RW596.09 30.29 0 65.8 29.72 0 66.37 27.87 0 68.22 29.55 0 66.54 29.68 0 66.41 23.3 0 72.79 ---
Well ID MW1 96.07 29.86 0 66.21 27.05 0 69.02 26.49 0 69.58 21.61 0 74.46 29.11 0 66.96 26.74 0 69.33 29.73 0 66.34MW295.20 ------------------29.77 0 65.43MW395.87 ------------------30.40 0 65.47MW496.90 29.37 0 67.53 26.12 0 70.78 28.42 0 68.48 26.16 0 70.74 28.19 0 68.71 26.23 0 70.67 29.19 0 67.71MW594.23 30.34 0 63.89 28.12 0 66.11 29.98 0 64.25 28.58 0 65.65 29.11 0 65.12 28.35 0 65.88 30.60 0 63.63MW697.60 ------------------30.11 0 67.49MW797.43 ------------------29.06 0 68.37MW893.73 ------------------20.71 0 73.02MW994.92 ------------------31.30 0 63.62MW1095.63 ------------------30.87 0 64.76MW1194.12 29.58 0 64.54 27.35 0 66.77 29.28 0 64.84 27.25 0 66.87 28.87 0 65.25 27.00 0 67.12 29.74 0 64.38MW1295.81 29.65 0 66.16 26.95 0 68.86 29.03 0 66.78 27.00 0 68.81 28.83 0 66.98 26.80 0 69.01 29.50 0 66.31MW1394.01 28.34 0 65.67 26.90 0 67.11 27.84 0 66.17 25.81 0 68.20 27.66 0 66.35 25.27 0 68.74 28.30 0 65.71MW1495.15 30.13 0 65.02 27.88 0 67.27 29.91 0 65.24 27.85 0 67.30 29.65 0 65.50 27.30 0 67.85 30.25 0 64.90MW1596.50 29.1 0 67.4 26.02 0 70.48 27.85 0 68.65 25.91 0 70.59 28.19 0 68.31 26.00 0 70.50 28.84 0 67.66MW1694.39 ------------------31.20 0 63.19MW1784.80 20.77 0 64.03 18.83 0 65.97 20.76 0 64.04 18.90 0 65.90 20.38 0 64.42 18.55 0 66.25 21.01 0 63.79MW1885.38 ---------------------MW19 84.25 ------------------20.92 0 63.33MW2084.00 ------------------21.45 0 62.55MW2185.78 ------------------27.00 0 58.78MW2289.31 ------------------30.04 0 59.27MW2383.77 22.69 0 61.08 21.10 0 62.67 22.66 0 61.11 21.12 0 62.65 22.24 0 61.53 20.84 0 62.93 22.85 0 60.92MW2483.88 ------------------23.74 0 60.14MW2581.39 22.08 0 59.31 20.68 0 60.71 22.06 0 59.33 20.65 0 60.74 21.60 0 59.79 20.39 0 61.00 22.22 0 59.17MW2682.65 ------------------22.80 0 59.85MW2760.94 ------------------6.49 0 54.45MW2863.90 9.44 0 54.46 8.55 0 55.35 9.26 0 54.64 8.49 0 55.41 8.31 0 55.59 9.50 0 54.40RW195.28 29.3 0 65.98 26.65 0 68.63 28.71 0 66.57 26.63 0 68.65 28.49 0 66.79 26.33 0 68.95 29.1 0 66.18RW295.06 29.42 0 65.64 26.72 0 68.34 28.7 0 66.36 26.82 0 68.24 28.81 0 66.25 22.5 0 72.56 29.53 0 65.53RW396.29 29.5 0 66.79 26.8 0 69.49 28.79 0 67.50 26.46 0 69.83 28.7 0 67.59 26.52 0 69.77 29.35 0 66.94RW495.84 29.86 0 65.98 26.98 0 68.86 29.05 0 66.79 27.1 0 68.74 29.1 0 66.74 26.88 0 68.96 29.85 0 65.99Notes:1. All measurements are in feet. 2. Groundwater elevations are corrected for the presence of free product as follows: [Top of Casing Elevation - Depth to Water] + [Free Product Thickness x 0.7305]. 3. Well elevations were changed with an updated survey on September 17, 2012 by William Franklin Tatum of McAnally Land Surveying.
car parked on well
Groundwater
Elevation
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
10/8/2018 5/16/2019 10/22/2019 4/17/2020 10/13/2020 4/19/2021 10/7/2021
Casing
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
9/22/2015
Casing Elevation Depth to Water Free Product Thickness Groundwater Elevation
12/17/2015
Depth to Water Free Product Thickness Groundwater Elevation
4/5/2018
Depth to Water Free Product Thickness Groundwater Elevation
3/14/2017
Depth to Water Free Product Thickness Groundwater Elevation
9/14/2017
Depth to Water Free Product Thickness Groundwater Elevation
3/14/2016
Depth to Water Free Product Thickness Groundwater Elevation
9/14/2016
Depth to Water Free Product Thickness Groundwater Elevation
Page 3 of 3
HISTORICAL GROUNDWATER ELEVATION DATAIncident Name: Four Brothers 208 Incident No.: 30576
Well ID MW1 96.07 28.86 0 67.21 29.46 0 66.61MW295.20 ------MW3 95.87 ------MW4 96.90 28.47 0 68.43 30.23 0 66.67MW594.23 29.74 0 64.49 28.93 0 65.30MW697.60 ------MW7 97.43 ------MW8 93.73 ------MW9 94.92 ------MW10 95.63 ------MW11 94.12 28.65 0 65.47 29.68 0 64.44MW1295.81 28.87 0 66.94 29.42 0 66.39MW1394.01 27.42 0 66.59 27.89 0 66.12MW1495.15 29.31 0 65.84 30.12 0 65.03MW1596.50 28.30 0 68.20 29.13 0 67.37MW1694.39 ------MW17 84.80 20.04 0 64.76 20.99 0 63.81MW1885.38 well destroyedMW1984.25 ------MW20 84.00 ------MW21 85.78 ------MW22 89.31 ------MW23 83.77 21.90 0 61.87 22.87 0 60.90MW2483.88 ------MW25 81.39 21.19 0 60.20 22.25 0 59.14MW2682.65 ------MW27 60.94 ------MW28 63.90 8.85 0 55.05 ---RW1 95.28 28.8 0 66.48 29.04 0 66.24RW295.06 28.97 0 66.09 29.23 0 65.83RW396.29 28.56 0 67.73 29.24 0 67.05RW495.84 28.49 0 67.35 29.2 0 66.64RW596.09 ------
Well ID MW1 96.07MW295.20MW395.87MW496.90MW594.23MW697.60MW797.43MW893.73MW994.92MW1095.63MW1194.12MW1295.81MW1394.01MW1495.15MW1596.50MW1694.39MW1784.80MW1885.38MW1984.25MW2084.00MW2185.78MW2289.31MW2383.77MW2483.88MW2581.39MW2682.65MW2760.94MW2863.90RW195.28RW295.06RW396.29RW495.84Notes:1. All measurements are in feet. 2. Groundwater elevations are corrected for the presence of free product as follows: [Top of Casing Elevation - Depth to Water] + [Free Product Thickness x 0.7305]. 3. Well elevations were changed with an updated survey on September 17, 2012 by William Franklin Tatum of McAnally Land Surveying.
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
well destroyed
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Casing
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater
Elevation
Depth to
Water
Free Product
Thickness
Groundwater ElevationGroundwater Elevation Depth to Water Free Product Thickness Groundwater Elevation Depth to Water Free Product ThicknessGroundwater Elevation Depth to Water Free Product Thickness Groundwater Elevation Depth to Water Free Product ThicknessCasing Elevation Depth to Water Free Product Thickness Groundwater Elevation Depth to Water Free Product Thickness Groundwater Elevation Depth to Water Free Product Thickness
4/5/2022 6/29/2022
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP VPH/EPHMADEP EPHMADEP VPHMADEP EPH6010B504.1Sample ID Date Collected
MW1 8/25/2008 18,000 20,000 2,100 11,100 530 760 --1,100 <500 --<500 --<2,500 <500 -<1,400 <500 <<<<58,000 30,000 6,300 <100 --2,900 400
MW1 3/6/2009
MW1 9/18/2009
MW1 8/25/2010
MW1 3/26/12
MW1 1/28/13
MW1 3/20/14
MW1 9/22/14
MW1 2/25/15
MW1 9/22/15 667 696 78.3 546 135 118 1,990 3,630 125 163 1,290 <2.91 1.87 <315 -<<94.9 19.2 <<<<--------
MW1 12/17/15 6,750 9,950 1,130 6,580 282 550 1,970 2,850 491 457 <7.04 <46 30.2 7.4 946 119 <1,090 255 <<<<--------
MW1 3/14/16 1,310 2,570 270 1,808 199 255 14,300 5,580 272 353 1,760 2.1 13.3 15.1 2.83 654 40.7 <427 96.6 <<<<--------
MW1 9/14/16 4,520 12,300 1,030 6,590 151 400 8,990 3,490 330 <50.0 1,890 <25.0 <25.0 <100 <25.0 1,030 124 408 <1,280 298 <<<<--------
MW1 3/14/17 2,100 3,550 422 3,200 77 232 15,300 4,850 174 288 2,270 66.5 50.5 <3.00 <4.60 848 57.5 334 <660 126 <4.85 <8.60 53 <--------
MW1 9/14/17 4,160 9,940 1,090 7,550 40 244 5,290 2,040 222 265 1,110 117 36 <6.00 <731 101 133 <1,220 250 <<17.2 <7.40 <--------
MW1 4/5/18 153 422 64 670 <16.9 <9.20 6,700 1,610 <9.00 <18.0 992 <8.90 <9.80 <<419 <6.50 <25.3 <185 116 <<17.2 <<--------
MW1 10/8/18 993 9,970 1,770 10,490 < 8.45 33.5 2,910 3,100 255 <1,730 < 4.45 73 <<2,280 203 283 <1,920 459 << 8.00 66.5 41 --------
MW1 5/16/19 59 721 156 1,103 < 16.9 < 9.20 1,930 << 9.00 < 18.0 405 < 8.90 < 9.80 135 < 9.20 398 < 6.50 < 25.3 <227 55 << 16.0 <<--------
MW1 10/22/19 6.09 187 39.2 312 < 0.169 < 0.0920 4,990 2,030 < 0.0900 12.9 303 < 0.0890 1.66 < 0.0600 < 0.0920 193 4.63 39.3 <78.4 17 << 0.160 1.31 <--------
MW1 4/17/20 8.64 297 61.8 470 < 0.169 0.7 4,880 << 0.0900 17.5 427 < 0.0890 2.67 < 0.0600 0.72 344 7.18 38 <132 27.8 << 0.160 0.92 <--------
MW1 10/13/20 11.7 1,680 490 3,930 < 1.98 < 3.59 1,150 619 < 4.05 19.2 446 4.5 39.1 < 3.42 < 3.36 618 83.9 67.3 10.7 943 279 < < 3.82 < <--------
MW1 4/19/21 < 1.90 99.9 25 181 < 3.70 < 3.50 3,210 1,270 < 2.50 < 2.50 473 < 3.55 < 2.65 < 3.80 < 3.50 99.9 < 3.45 70.5 < 15.0 39.3 11.3 < 4.90 < 3.00 < 5.00 < 2.90 --------
MW1 10/7/21 75.3 3,540 1,300 7,600 < 4.40 < 4.00 713 436 < 3.80 < 4.60 298 < 14.2 85 43.9 16.8 960 219 < 36.0 <2,010 570 < 19.6 < 12.0 < 20.0 < 2.40 --------
MW1 4/5/22 3.28 111 30.9 267 < 0.440 0.666 1,510 658 0.95 7.77 333 < 1.42 1.93 < 1.52 < 1.40 161 4.07 42.6 <69.9 17.1 << 2.00 <<--------
MW1 6/29/22 2.18 122 35.6 297 < 1.10 < 1.00 1,760 777 < 0.950 9.32 343 < 3.55 < 2.65 4.33 < 3.50 451 6.9 56.3 <107 24.3 << 5.00 <<--------1 600 600 500 20 70 6,000 4,000 0.40 0.02 40 25 70 70 70 6 70 100 5 400 400 100 70 70 0.7 400 700 200 10,000 700*200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 400 50 40,000 11,700 25,000 6,900 8,500 6,000 30,000 100,000 5,000 28,500 25,000 100,000 70,000 70,000 700 NE NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
4. < = denotes less than sample detection limit.
5. NE - GCL not established;
MW1 - HISTORICAL GROUNDWATER SAMPLING RESULTS
Methylene ChlorideAnalytical Method
Total XylenesEthylbenzeneTolueneBenzeneContaminant of Concern
MTBEC9-C18 Aliphatics2-Butanone (MEK)FREE PRODUCT 3.40'
FREE PRODUCT 0.46'StyreneChloroformTetrachloroethyleneC19-C36 AliphaticsMIBKBromomethaneIncident Name: Four Brothers 208 Incident No.: 30576
FREE PRODUCT (~2' in bailer)n-Propylbenzenesec-ButylbenzeneAcetoneC9-C12 AliphaticsC9-C22 Aromatics4-IsopropyltolueneFREE PRODUCT 0.03'
FREE PRODUCT 0.16'
NCDWM Gross Contamination Levels2L Standard IPEIsopropylbenzenen-ButylbenzeneNaphthalene1,2,4-TrimethylbenzeneC9-C10 AliphaticsFREE PRODUCT 1.25'
FREE PRODUCT 0.02'LeadEDB1,2-Dichloroethane1,2-Dibromoethane2-HexanoneFREE PRODUCT 1.39'1,3,5-TrimethylbenzeneC5-C8 Aliphatics0
5,000
10,000
15,000
20,000
25,000
Contaminant Concentration (ug/L)Time
Contaminant Concentrationvs. Time -MW1
Benzene
Toluene
Ethylbenzene
FREE PRODUCT:3/09 2' 9/09 3.4' 8/10 0.46' 3/12 1.39' 1/13 1.25' 3/14 0.16' 9/14 0.02' 2/15 0.03'

6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPHMADEP EPH6010B504.1Sample ID Date Collected
MW2 3/6/2009 35,000 41000 3,200 16,200 370 1,200 ----1,500 1,200 --<200 <1,000 290 2,000 490 120,000 21,000 6,100 90 940
MW2 8/25/2010
MW2 3/26/12
MW2 1/28/13 25,000 23,000 3,000 14,400 280 530 ----860 <250 --<250 <1,200 300 2,000 530 -----
MW2 3/20/14 22,000 21,000 2,600 12,200 440 750 3,400 1,400 28 -910 630 --120 980 300 1,900 520 -----
MW2 9/22/14 15,300 14,300 2,180 11,410 348 426 1,220 723 <3 -608 439 504 -101 1,120 255 1,720 410 -----
MW2 2/25/15 21,100 22,500 2,840 13,620 647 537 1,430 857 <0.600 -552 519 379 -147 1,170 395 2,330 D 654 -----
MW2 9/22/15 0.57 6.49 1.29 24.3 2.06 <0.092 85.9 29.6 <0.06 -<0.09 2.82 12.7 -<0.098 32.5 <0.065 11.3 2.69 -----
MW2 12/17/15 0.37 8.61 3.40 160.3 0.45 <0.0920 42 18.9 <0.0600 0.4 <0.0900 <0.180 <0.352 0.37 1.07 31.6 1.65 61.1 33.9 -----
MW2 3/14/16 <0.119 1.95 0.91 12.81 <0.169 <0.0920 25.4 14.3 1.06 <0.0920 <0.0900 <0.180 <0.352 <0.0890 <0.0980 19.2 <0.0650 13.9 4.31 -----
MW2 9/14/2016 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 30.5 10.1 <2.00 <0.500 <1.00 <0.500 3.36 <0.500 <0.500 1.68 <1.00 <0.500 <0.500 -----
MW2 3/14/17 <0.119 <0.0570 0.1 1.16 <0.169 <0.0920 10.9 3.87 <0.0600 <0.0920 <0.0900 <0.180 <0.352 <0.0890 <0.0980 3.48 0.09 0.42 0.21 -----
MW2 9/14/17 0.16 0.28 <0.0920 0.59 <0.169 <0.0920 21.1 7.49 <0.0600 <<0.0900 <0.180 5.3 1.05 <0.0980 2.81 <0.0650 0.25 0.25 -----
MW2 10/7/21 < 0.130 1.84 0.533 3.18 < 0.220 < 0.200 22.1 6.84 1.05 < 0.700 < 0.190 < 0.230 < 1.40 < 0.710 < 0.530 1.9 < 0.690 2.53 0.972 -----
1 600 600 500 20 70 6,000 4,000 70 70 0.40 0.02 40 70 70 6 70 400 400 400 700*200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 400 50 40,000 25,000 25,000 6,000 30,000 28,500 25,000 NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE - GCL not established
7. * The 2L Standards listed for the C9-C12 Aliphatic and C9-C10 Aromatic carbon fractions are actually the 2L Standards for the C9-C18 Aliphatic and C9-C22 Aromatic carbon fraction classes respectively.
MW2 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
IPEAcetonen-ButylbenzeneMTBELeadAnalytical Method
Contaminant of Concern
2L Standard
NCDWM Gross Contamination Levels C9-C12 Aliphaticsn-ProylbenzeneEDBNaphthalenesec-ButylbenzeneFREE PRODUCT 0.12'
FREE PRODUCT 0.08'1,2-DibromoethaneBenzeneTolueneEthylbenzeneC9-C10 AliphaticsTotal Xylenes1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzene1,2-DichloroethaneC5-C8 Aliphatics4-Isopropyltoluene2-Butanone (MEK)2-Hexanone0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
Contaminant Concentration (ug/L)Time
MW2 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
MTBE
Free product: 8/10 0.12'3/12 0.08'
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPHMADEP EPH6010B504.1Sample ID Date Collected
MW3 3/6/09 3,100 350 1,300 7,700 320 1,400 -<<<<160 64 -<73 <630 190 1,400 390 9,600 9,800 <5,000 28 62
MW3 8/25/10 2,610 248 1,240 8,680 197 1,000 -<<<411 J 119 49.5 J -<62.9 J <646 200 1,760 415 -----
MW3 3/26/12 1,800 <50 800 6,700 180 850 -<20 11 210 99 38 -<83 <490 190 1,700 430 -----
MW3 1/28/13 1,400 <120 590 4,900 <25 510 -<<25 <25 <250 80 39 -<77 28 440 170 1,400 400 -----
MW3 3/20/14 1,200 <25 500 3,800 160 680 -<16 8.5 250 100 33 -<62 23 380 120 960 300 -----
MW3 9/22/14 1,570 57.1 677 5,170 200 747 1,430 <<0.300 13.5 235 149 57 341 <91.9 7.45 597 214 1,360 353 -----
MW3 2/25/15 1,270 36.8 574 3,580 144 571 207 <<0.300 12.9 <0.445 96.2 24 <1.76 <80.9 8.25 510 172 810 92.2 -----
MW3 9/22/15 <0.119 <0.057 <0.092 <0.298 <0.169 <0.092 27.3 <<0.06 <0.092 4.08 <0.09 <0.18 <0.352 <<0.098 <0.089 <0.094 <0.065 <0.103 <0.087 -----
MW3 12/17/15 <0.119 <0.057 <0.092 <0.298 <0.169 <0.092 <0.352 <<0.0600 <0.0920 <0.378 <0.09 <0.18 <0.352 <<0.098 <0.089 <0.094 <0.065 <0.103 <0.087 -----
MW3 3/14/16 <0.119 <0.057 <0.092 <0.298 <0.169 <0.092 22.9 <<0.0600 <0.0920 13.4 J <0.09 <0.18 <0.352 <<0.098 <0.089 1.48 J <0.065 <0.103 <0.087 -----
MW3 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 17.6 3.26 < 0.760 < 0.700 8.46 < 0.190 0.366 5.32 3.43 0.949 7.64 < 1.00 < 0.690 < 0.820 < 0.560 -----
1 600 600 500 20 70 6,000 100 70 70 4,000 0.40 0.02 40 100 70 25 6 70 400 400 400 700*200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 100,000 6,900 8,500 4,000,000 400 50 40,000 100,000 25,000 11,700 6,000 30,000 28,500 25,000 NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE - GCL not established
7. * The 2L Standards listed for the C9-C12 Aliphatic and C9-C10 Aromatic carbon fractions are actually the 2L Standards for the C9-C18 Aliphatic and C9-C22 Aromatic carbon fraction classes respectively.
MW3 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard n-Butylbenzenesec-Butylbenzene1,2-Dichloroethane1,2-DibromoethaneMTBEn-ProylbenzeneIsopropylbenzeneEDBNaphthalene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneC5-C8 AliphaticsIPE2-HexanoneAceetoneNCDWM Gross Contamination Levels C9-C12 AliphaticsC9-C10 AliphaticsLeadMIBKBromomethane2-Butanone (MEK)p-IsopropyltolueneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
Contaminant Concentration (ug/L)MW3 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
MTBE
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPHMADEP EPH6010B504.1Sample ID Date Collected
MW4 3/6/2009 1,500 400 1,100 7,100 <25 <25 ---<25 <25 120 <25 480 380 39 2,100 680 5,700 11,000 3,800 <5 7.9
MW4 8/25/10
MW4 3/26/12
MW4 1/28/13 220 <250 300 2,500 <50 <50 ---<50 <50 72 52 260 210 -1,500 520 -----MW4 3/20/14 130 45 180 1,480 <5 8.3 ---9 7.1 37 31 260 100 -910 320 -----
MW4 9/22/14 85.9 56.7 128 1,438 <0.169 3.31 --12.5 <0.0900 <0.180 49.3 7.39 243 85 <0.113 1,030 291 -----
MW4 2/25/15 49.8 14.7 82.7 1,379 <0.169 <0.0920 --13.4 <0.0900 <0.180 <0.0980 8.1 414 112 <0.118 1,150 353 -----
MW4 9/22/15 5.45 <0.057 7.81 299 <0.169 1.04 --2.31 <0.09 <0.18 2.68 3.95 10.1 3.66 <0.113 171 129 -----
MW4 12/17/15 4.18 <0.0570 19.4 278 <0.169 <0.0920 -9.53 1.63 <0.0900 1 4.46 1.98 40.3 8.53 <0.113 168 95.5 -----
MW4 3/14/16 3.61 0.81 16.5 288 <0.169 0.91 -8.33 1.96 <0.0900 2.13 4.83 1.82 34.9 9.99 <0.113 229 94.1 -----
MW4 9/14/2016 <0.500 <0.500 6.78 90.2 <1.00 <5.00 -<2.00 <0.500 <0.500 <1.00 1.9 <0.500 9.21 4.44 <92 38.3 -----
MW4 3/14/17 <0.119 <0.0570 0.98 17 <0.169 <0.0920 -<0.0600 <0.0920 <0.0900 <0.180 1.03 1.81 3.69 1.03 <17.2 6.85 -----
MW4 9/14/17 <0.119 0.27 4.34 63.5 <0.169 <0.0920 -<0.0600 <<0.0900 <0.180 1.49 2.56 9.18 4.03 <57.3 19.5 -----MW4 4/5/18 <0.119 <0.0570 1.84 11.2 <0.169 <0.0920 7.28 <<<0.0900 <0.180 1.68 1.6 5.57 2.77 <10.8 4.34 -----
MW4 10/8/18 < 0.119 < 0.0570 0.77 4.15 < 0.169 < 0.0920 < 0.352 <<< 0.180 << 0.0980 0.8 < 0.0940 1.02 5.53 1.64 <-----
MW4 5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.0600 < 0.0920 < 0.0900 < 0.180 < 0.0980 < 0.0890 < 0.0940 < 0.0650 <1.23 0.51 -----
MW4 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.0600 < 0.0920 < 0.0900 < 0.180 < 0.0980 < 0.0890 < 0.0940 < 0.0650 <1.36 0.71 -----
MW4 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.0600 < 0.0920 < 0.0900 < 0.180 < 0.0980 < 0.0890 < 0.0940 0.78 <2.16 0.91 -----
MW4 10/13/20 < 0.388 < 0.366 < 0.355 0.37 < 0.198 < 0.359 < 4.53 < 0.342 < 0.336 < 0.405 < 0.376 < 0.363 < 0.336 < 0.256 < 0.307 <0.58 < 0.352 -----
MW4 4/19/21 < 0.380 < 0.410 0.652 2.19 < 0.740 < 0.700 < 10.0 < 0.760 < 0.700 < 0.500 < 0.500 0.548 < 0.710 1.69 1.52 <4.41 2.32 -----
MW4 10/7/21 < 0.130 0.471 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 0.760 < 0.700 < 0.190 < 0.230 < 0.530 < 0.710 < 1.00 0.945 <2.13 1.31 -----
MW4 4/5/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<0.734 <1.31 0.824 -----MW4 6/29/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<1.31 <2.72 1.68 -----
1 600 600 500 20 70 6,000 70 70 0.40 0.02 70 25 6 70 NE 400 400 400 700*200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 6,900 8,500 400 50 25,000 11,700 6,000 30,000 NE 28,500 25,000 NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.6. NE - GCL not established
7. * The 2L Standards listed for the C9-C12 Aliphatic and C9-C10 Aromatic carbon fractions are actually the 2L Standards for the C9-C18 Aliphatic and C9-C22 Aromatic carbon fraction classes respectively. C5-C8 Aliphaticssec-ButylbenzeneIPE1,2-Dibromoethane1,1,2-TrichloroethaneContaminant of Concern
NCDWM Gross Contamination Levels
2L Standard
FREE PRODUCT 0.06'p-Isopropyltoluene1,2,4-Trimethylbenzenen-Butylbenzene1,3,5-Trimethylbenzenen-ProylbenzeneFREE PRODUCT 0.01'Total XylenesC9-C10 AliphaticsC9-C12 AliphaticsMTBE1,2-DichloroethaneBenzeneEthylbenzeneMW4 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
LeadEDBIncident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
AcetoneIsopropylbenzeneTolueneNaphthalene0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
3/1/20095/1/20097/1/20099/1/200911/1/20091/1/20103/1/20105/1/20107/1/20109/1/201011/1/20101/1/20113/1/20115/1/20117/1/20119/1/201111/1/20111/1/20123/1/20125/1/20127/1/20129/1/201211/1/20121/1/20133/1/20135/1/20137/1/20139/1/201311/1/20131/1/20143/1/20145/1/20147/1/20149/1/201411/1/20141/1/20153/1/20155/1/20157/1/20159/1/201511/1/20151/1/20163/1/20165/1/20167/1/20169/1/201611/1/20161/1/20173/1/20175/1/20177/1/20179/1/201711/1/20171/1/20183/1/20185/1/20187/1/20189/1/201811/1/20181/1/20193/1/20195/1/20197/1/20199/1/201911/1/20191/1/20203/1/20205/1/20207/1/20209/1/202011/1/20201/1/20213/1/20215/1/20217/1/20219/1/202111/1/20211/1/20223/1/20225/1/2022Contaminant Concentration (ug/L)Time
MW4 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
Free product 8/10 .06' 3/12 .01'
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200B6200B625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW5 8/25/10 95.2 16.6 5.2 43.3 4.8 4.1 -11.7 0.22 0.17 1.3 0.44 7.5 1.8 1.7 <1.5 <12.8/9.6 1.3 0.22 0.22 0.87 0.88 1 5.1 1.5 221 162.3 <95 120.6 <5 0.39
MW5 3/26/12 <1 <5 <1 <3 <1 <1 -<10 <1 <1 <5 <1 <1 <1 <1 <<10 <<5 <1 <1 <1 <1 <1 ---------
MW5 1/28/13 <1 <5 <1 <3 <1 <1 -<10 <1 <1 <5 <1 <1 <1 <1 <<10 <<5 <1 <1 <1 <1 <1 ---------
MW5 3/20/14 <1 <5 <1 <3 <1 <1 -<10 <1 <1 <5 <1 <1 <1 <1 <<10 <<5 <1 <1 <1 <1 <1 ---------
MW5 9/22/14 <0.119 <0.0570 0.24 0.75 0.37 0.25 -<0.378 <0.0600 0.65 <0.172 <0.180 <0.0900 <0.352 <0.0980 <<0.253 <1.99 <0.0650 0.29 0.25 0.82 0.21 ---------
MW5 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 -<0.378 <0.0600 <0.0920 <0.172 <0.180 <0.0900 <0.352 <0.0980 <<0.253 <<0.0940 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ---------
MW5 9/22/15 20.6 <0.057 <0.092 7.696 6.96 9.03 -<0.378 <0.0600 <0.0920 <0.172 <0.180 5.45 <0.352 1.7 <<0.253 <5.6 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ---------
MW5 12/17/15 55 <0.0570 <0.0920 8.366 7.49 9.99 -<0.378 0.22 0.24 <0.172 <0.180 <0.0900 <0.352 2.42 <<0.253 <12.7 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ---------
MW5 9/14/16 69.7 <0.500 <0.500 7.51 8.62 11.7 -<20.0 <2.00 <0.500 <<1.00 8.24 <5.00 2.54 <<5.00 <7.91 <1.00 <<2.38 <0.500 ---------
MW5 3/14/17 16 <0.0570 <0.0920 0.89 2.2 5.1 -<0.378 <0.0600 <0.0920 0.19 <0.180 3.5 <0.352 1.14 <<0.253 <3.29 <0.0650 <<<0.103 <0.0870 ---------
MW5 9/14/17 3.86 <0.0570 <0.0920 <0.180 0.51 1.84 -<0.378 <0.0600 <<0.172 <0.180 1.94 <0.352 0.15 <<0.253 <<0.0940 <0.0650 0.17 <0.12 <0.0870 ---------
MW5 4/5/18 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 3.77 <0.378 <<<0.172 <0.180 <0.0900 <0.352 <0.0980 <<0.253 <<0.0940 <0.0650 <0.0540 <<0.103 <0.0870 ---------
MW5 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.280 <<< 0.160 < 0.180 << 0.320 < 0.0980 << 0.253 << 0.0940 < 0.0650 < 0.0900 << 0.103 < 0.0870 ---------
MW5 5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 < 0.160 < 0.180 < 0.0900 < 0.320 < 0.0980 << 0.253 << 0.0940 < 0.0650 <<< 0.103 < 0.0870 ---------
MW5 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.280 < 0.0600 < 0.0920 < 0.160 < 0.180 < 0.0900 < 0.320 < 0.0980 << 0.253 << 0.0940 < 0.0650 <<< 0.103 < 0.0870 ---------
MW5 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 < 0.160 < 0.180 < 0.0900 < 0.320 < 0.0980 << 0.253 << 0.0940 < 0.0650 <<< 0.103 < 0.0870 ---------
MW5 10/13/20 < 0.388 < 0.366 < 0.355 < 0.359 0.33 < 0.359 < 4.53 < 1.03 < 0.342 < 0.336 < 0.382 < 0.376 0.49 < 2.17 < 0.363 < 0.336 < 2.21 < 0.786 < 2.56 < 0.307 <<< 0.335 < 0.352 ---------
MW5 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 < 2.60 < 0.760 < 0.700 < 0.600 < 0.500 < 0.500 < 3.10 < 0.530 < 0.710 < 1.80 << 1.00 < 0.690 <<< 0.820 < 0.560 ---------
MW5 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 2.60 < 0.760 < 0.700 < 0.600 < 0.230 < 0.190 < 1.40 < 0.530 < 0.710 < 1.80 << 1.00 < 0.690 < 0.120 << 0.820 < 0.560 ---------
MW5 4/5/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 10.1 < 2.60 < 0.760 < 0.700 < 0.600 < 0.230 0.224 < 1.40 < 0.530 < 0.710 < 1.80 << 1.00 < 0.690 < 0.120 << 0.820 < 0.560 ---------
MW5 6/29/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<<<<---------
1 600 600 500 20 70 6,000 4,000 70 70 70 0.02 0.40 280 70 25 NE 5 6 70 0.7 3 400 400 NE 3 30 400 700 10,000 200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 70,000 50 400 280,000 25,000 11,700 NE 5,000 6,000 30,000 700 3,000 28,500 25,000 NE 170 12,500 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Incident Name: Four Brothers 208 Incident No.: 30576
MW5 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
2L Standard
NCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneC5-C8 AliphaticsC19-C36 Aliphaticsn-ProylbenzeneTetrachloroethyleneTrichloroethylene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl Alcohol1,2-Dichloroethane2-HexanoneIsopropylbenzene4-Methyl-2-pentanoneNaphthaleneC9-C18 Aliphaticsp-IsopropyltouleneMethylene Chloride2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneChloroformAcetone1,2-DibromoethaneMTBEIPEAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes0
10
20
30
40
50
60
70
80
90
100
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW5
Benzene
Total Xylenes
1,2-Dichloroethane
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW6 8/25/10 <0.11 <0.11 <0.11 <0.32 0.88 <0.12 <1.0 <0.10 <0.10 <0.18 <0.0094 <0.14 <1.0 <0.10 <1.0 <0.11/<0.97 <0.11 0.11 J 0.21 J <0.10 <0.11 <0.97 <1.9 <0.97 2 J <50 <127 <97 <107 139 <0.0094
MW6 3/26/12 <1 <5 <1 <3 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <10 <5 <1 <1 <1 <1 <1 ----------
MW6 1/28/13 <1 <5 <1 <3 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <10 <5 <1 <1 <1 <1 <1 ----------
MW6 3/20/14 <1 <5 <1 <3 <1 <1 <10 <1 <1 <1 <1 <1 <1 <1 <10 <5 <1 <1 <1 <1 <1 ----------
MW6 9/22/14 <0.119 <0.0570 <0.0920 <0.298 0.29 <0.0920 <0.378 <0.0600 <0.0920 <0.172 <0.180 <0.0900 <0.352 <0.0980 <0.253 0.74 <0.0650 <0.0540 <0.139 0.41 <0.0870 ----------
MW6 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.378 <0.0600 <0.0920 <0.172 <0.180 <0.0900 <0.352 <0.0980 <0.253 <0.0940 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ----------
MW6 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.378 <0.0600 <0.0920 <0.172 <0.180 <0.0900 <0.352 <0.0980 <0.253 <0.0940 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ----------
MW6 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.378 <0.0600 <0.0920 <0.172 <0.180 <0.0900 <0.352 <0.0980 <0.253 <0.0940 <0.0650 <0.0540 <0.139 <0.103 <0.0870 ----------
MW6 10/7/2021 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 2.60 < 0.760 < 0.700 < 0.600 < 0.230 < 0.190 < 1.40 < 0.530 < 1.80 < 1.00 < 0.690 < 0.120 << 0.820 < 0.560 ----------
1 600 600 500 20 70 4,000 70 70 70 0.02 0.40 280 70 NE 6 70 0.7 3 400 400 NE 3 30 6,000 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 4,000,000 6,900 8,500 70,000 50 400 280,000 25,000 NE 6,000 30,000 700 3,000 28,500 25,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPE2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneChloroform1,2-Dibromoethane1,2-Dichloroethane2-HexanoneIsopropylbenzene4-Methyl-2-pentanoneNaphthaleneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 Aliphaticsn-ProylbenzeneTetrachloroethyleneTrichloroethylene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl AlcoholMW6 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneDiethyl phthalate
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW7 8/25/10 <0.11 <0.11 <0.11 <0.32 1.5 <0.12 <0.10 <0.10 -<0.10 <0.11/<0.97 <0.11 <0.10 <0.11 <0.97 <1.9 <0.97 <1.9 <50 <128 <98 <108 69.7 <0.0093
MW7 3/26/12 <1 <5 <1 <3 <1 <1 <1 <1 -<1 <5 <1 <1 <1 ----------
MW7 1/28/13 <1 <5 <1 <3 <1 <1 <1 <1 -<1 <5 <1 <1 <1 ----------
MW7 3/20/14 <1 <5 <1 <3 <1 <1 <1 <1 -<1 <5 <1 <1 <1 ----------
MW7 9/22/14 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 0.31 <0.0980 0.41 <0.0650 0.28 <0.0870 ----------
MW7 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.172 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW7 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.172 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW7 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 0.6 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW7 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 0.760 < 0.700 < 0.600 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 ----------
1 600 600 500 20 70 70 70 70 70 6 70 400 400 NE 3 30 6,000 400 700 10,000 200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 70,000 25,000 6,000 30,000 28,500 25,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesIsopropylbenzeneNaphthaleneMTBEIPEn-Butylbenzenesec-ButylbenzeneChloroformC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 Aliphaticsn-Proylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl AlcoholMW7 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneDiethyl phthalate
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW8 8/25/10 <0.11 <0.11 <0.11 <0.32 <0.12 <0.12 <0.10 <0.10 <0.10 <0.11/<0.97 <0.11 <0.10 <0.11 <0.97 <1.9 <0.97 <1.9 <50 <126 <96 <106 181 <0.0092
MW8 3/26/12 <1 <5 <1 <3 <1 <1 <1 <1 <1 <5 <1 <1 <1 ----------
MW8 1/28/13 <1 <5 <1 <3 <1 <1 <1 <1 <1 <5 <1 <1 <1 ----------
MW8 9/22/14 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW8 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW8 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW8 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW8 10/7/2021 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 0.760 < 0.700 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 ----------
1 600 600 500 20 70 70 70 70 6 70 400 400 NE 3 30 6,000 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 25,000 6,000 30,000 28,500 25,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesIsopropylbenzeneNaphthaleneMTBEIPEn-Butylbenzenesec-ButylbenzeneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 Aliphaticsn-Proylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl AlcoholIncident Name: Four Brothers 208 Incident No.: 30576
MW8 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
2L Standard
NCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneDiethyl phthalate
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW9 8/25/10 <0.11 <0.11 <0.11 0.49 1.3 8.4 <1.0 <0.10 <0.10 <0.0094 0.43 <0.10 <0.11/<0.97 <0.11 <0.10 <0.11 <<<<0.97 <1.9 <0.97 <1.9 <50 <125 <95 <105 56.5 <0.0094
MW9 3/26/12 8.1 <5 <1 112 16 110 <10 <1 <1 <1 6 3.3 24 <1 <1 <1 <<<----------
MW9 1/28/13 9.2 <5 <1 162 17 110 <10 <1 <1 <1 7.5 5.9 50 1 <1 <1 1.7 <<----------
MW9 3/20/14 2.5 <5 <1 65 18 99 <10 <1 <1 <1 7.1 1.1 15/-<1 <1 <1 <1 <<----------
MW9 9/22/14 9.93 0.35 0.56 164.18 42.6 190 <0.378 <0.0600 <0.0920 <0.180 18.9 <0.0980 49.5 <0.0650 <0.103 <0.0870 1.64 <<----------
MW9 2/25/15 23.1 0.54 1.01 340.86 69.3 268 <0.378 <0.0600 1.44 3.17 29.8 3.45 96.7 1.16 <0.103 1.5 0.44 <<----------
MW9 9/22/15 40.9 <0.057 1.23 328.11 67.3 262 <0.378 <0.06 1.44 <0.180 29.5 3.64 79.2 1.67 <0.103 1.82 2.25 <<----------
MW9 12/17/15 18.1 <0.0570 <0.0920 223.18 62 203 <0.378 <0.0600 1.38 <0.180 27.6 3.03 57.6 1.22 <0.103 <0.0870 0.44 <<----------
MW9 3/14/16 1.25 <0.0570 <0.0920 31.68 39.5 96.8 <0.378 <0.0600 <0.0920 <0.180 26.9 <0.0980 5.45 <0.0650 <0.103 <0.0870 <0.0890 <<----------
MW9 9/14/2016 0.99 <0.500 <0.500 53 46.5 92.9 <20.0 <2.00 <0.500 <1.00 26.4 <0.500 10.3 <1.00 1.04 <0.500 <0.500 3.8 1.46 ----------
MW9 3/14/17 0.3 <0.0570 <0.0920 26.1 51.1 146 <0.378 <0.0600 <0.0920 <0.180 20.5 <0.0980 4.81 <0.0650 <0.103 <0.0870 1.28 <0.352 1.34 ----------
MW9 9/14/17 0.51 0.22 <0.0920 55.7 14.8 51.7 <0.378 <0.0600 <<0.180 11.8 0.16 7.68 <0.0650 <0.103 <0.0870 1.17 <0.352 <----------
MW9 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 2.60 < 0.760 < 0.700 < 0.230 < 0.190 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 < 0.710 < 10.0 < 1.80 ----------
1 600 600 500 20 70 4,000 70 70 0.02 0.40 70 6 70 400 400 25 6000 100 NE 3 30 6,000 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 4,000,000 6,900 8,500 50 400 25,000 6,000 30,000 28,500 25,000 11,700 6,000,000 100,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes1,2-Dibromoethane1,2-DichloroethaneIsopropylbenzeneNaphthaleneMTBEIPE2-Butanone (MEK)n-Butylbenzenesec-ButylbenzeneNCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneDiethyl phthalateC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsAcetoneMIBKIncident Name: Four Brothers 208 Incident No.: 30576
MW9 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
p-Isopropyltoluene2L Standard n-Proylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl Alcohol0
50
100
150
200
250
300
350
400
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW9
Benzene
Total Xylenes
MTBE
IPE
1,2-Dichloroethane
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW10 8/25/10 <0.11 0.15 <0.11 <0.32 0.23 <0.12 <0.10 <0.10 <0.10 <0.11/<0.97 <0.11 <0.10 <0.11 <0.97 <1.9 <0.97 <1.9 <50 <127 <97 <107 90 <0.0092MW103/26/12 <1 <5 <1 <3 <1 <1 <1 <1 <1 <5 <1 <1 <1 ----------
MW10 1/28/13 <1 <5 <1 <3 <1 <1 <1 <1 <1 <5 <1 <1 <1 ----------
MW10 3/20/14 <1 <5 <1 <3 <1 <1 <1 <1 <1 <5 <1 <1 <1 ----------
MW10 9/22/14 <0.119 <0.0570 <0.0920 <0.298 0.45 <0.0920 <0.0600 <0.0920 <0.0980 1.52 <0.0650 <0.103 <0.0870 ----------
MW10 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW10 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW10 12/17/15 0.56 <0.0570 <0.0920 <0.298 <0.169 7.25 <0.0600 <0.0920 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW10 9/14/16 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 <2.00 <0.500 <0.500 1.58 <1.00 <0.500 <0.500 ----------
MW10 3/14/17 <<<<<<<<<<<<<----------MW10 9/14/17 <<<<<<<<<<<<<----------
MW10 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<----------
1 600 600 500 20 70 70 70 70 6 70 400 400 NE 3 30 6,000 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 25,000 6,000 30,000 28,500 25,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesIsopropylbenzeneNaphthaleneMTBEIPEn-Butylbenzenesec-ButylbenzeneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 Aliphaticsn-Proylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl AlcoholMW10 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C22 AliphaticsLeadEDBbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneDiethyl phthalate
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW11 8/25/10 3,790 6,130 1,690 9,070 <60 85.6 -525 J <50 <50 <50 50.2 107 72.4 576/836 266 1,970 465 19 <19 264 <19 17,600 20,970 <97 12,090 115 57.3
MW11 3/26/12 3,600 4,800 1,600 8,500 <25 75 -260 30 <25 <25 48 64 130 610 350 2,400 640 ----------
MW11 1/28/13 4,500 1,000 1,900 9,100 <50 83 -610 <50 <50 <50 73 79 130 690 340 2,200 640 ----------
MW11 3/20/14 1,700 250 1,400 7,100 <50 <50 -<500 <50 <50 320 <50 <50 130 730/-330 2,100 640 ----------
MW11 9/22/14 1,790 209 1,430 7,940 3.9 20 -<3.78 <0.600 18.7 <0.890 <1.80 <0.900 137 817 451 2,750 871 ----------
MW11 2/25/15 4,330 398 1,600 7,870 <1.69 47.4 -421 <0.600 20.4 49 54.6 <0.900 128 673 385 2,440 627 ----------
MW11 9/22/15 72.9 2.12 6.15 46.7 23.4 28.1 -33.1 <0.06 <0.092 <0.089 23.2 46 <0.098 10.2 <0.065 10.1 7.28 ----------
MW11 12/17/15 8.39 0.39 1.9 14.37 7.68 7.58 -<0.378 0 <0.0920 <0.0890 5.15 10.6 0.17 0.99 0.31 2.89 1.94 ----------
MW11 3/14/16 <0.119 <0.0570 <0.0920 1.28 3.65 3.47 -<0.378 <0.0600 <0.0920 <0.0890 1.37 5.58 <0.0980 2.07 <0.0650 4.18 3.32 ----------
MW11 9/14/16 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 -<20.0 <2.00 <0.500 <<1.00 1.15 <0.500 <2.00 <1.00 <0.500 <0.500 ----------
MW11 3/14/17 0.12 <0.0570 <0.0920 1.02 <0.169 0.28 -<0.378 <0.0600 <0.0920 <<0.180 0.67 <0.0980 <0.0940 <0.0650 0.11 <0.0870 ----------
MW11 9/14/17 0.74 0.25 0.11 0.64 <0.169 <0.0920 -<0.378 <0.0600 <<<0.180 0.26 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW11 4/5/18 <0.119 <0.0570 <0.0920 <0.180 0.44 <0.0920 8.29 <0.378 <<<<0.180 <0.0900 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 ----------
MW11 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.280 <<<< 0.180 << 0.0980 < 0.0940 < 0.0650 < 0.103 < 0.0870 ----------
MW11 5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 0.6 << 0.0600 < 0.0920 << 0.180 < 0.0900 < 0.0980 < 0.0940 < 0.0650 < 0.103 < 0.0870 ----------
MW11 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.280 < 0.0600 < 0.0920 << 0.180 < 0.0900 < 0.0980 < 0.0940 < 0.0650 < 0.103 < 0.0870 ----------
MW11 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 << 0.180 < 0.0900 < 0.0980 < 0.0940 < 0.0650 < 0.103 < 0.0870 ----------
MW11 10/13/20 < 0.388 < 0.366 < 0.355 < 0.359 < 0.198 < 0.359 < 4.53 < 1.03 < 0.342 < 0.336 << 0.376 < 4.05 < 0.363 < 0.256 < 0.307 < 0.335 < 0.352 ----------
MW11 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 < 2.60 < 0.760 < 0.700 < 0.630 < 0.500 < 0.500 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 ----------
MW11 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<----------
MW11 4/5/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<----------
MW11 6/29/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 <0.200 <<<<<<<<<<<<----------
1 600 600 500 20 70 6,000 4,000 70 70 70 0.02 0.40 70 6 70 400 400 NE 3 30 6,000 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 15,000 50 400 25,000 6,000 30,000 28,500 25,000 NE 170 12,500 NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "-" = Indicates analyte not tested
NCDWM Gross Contamination Levels n-Butylbenzenesec-Butylbenzene1,2-DibromoethaneMTBEIPE2L Standard
MW11 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Benzyl Alcoholbis(2-Ethylhexyl)phthalate2-MethylnaphthaleneAnalytical Method
Diethyl phthalateC9-C22 AliphaticsC9-C18 Aliphaticsn-Proylbenzene1,2-DichloroethaneIncident Name: Four Brothers 208 Incident No.: 30576
EDB2-Butanone (MEK)LeadBenzeneTolueneEthylbenzeneTotal XylenesContaminant of Concern
tert-ButylbenzeneC19-C36 AliphaticsC5-C8 Aliphatics1,2,4-TrimethylbenzeneAcetone1,3,5-TrimethylbenzeneIsopropylbenzeneNaphthalene0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
Contaminant Concentration (ug/L)MW11 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200B6200B6200B6200B625625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW12 1/20/11 5,060 15,500 2,200 8,660 <65 <54 1,420 J <<-<81 --498 391/437 232 1,240 327 ----12 <5.3 7 <2.4 166 34,500 20,120 320 11,510 8.5 47.9
MW12 3/26/12
MW12 1/28/13
MW12 3/20/14 2,600 8,600 1,700 7,600 23 <10 <500 <<-<50 <-96 580/-240 1,600 420 ---------------
MW12 9/22/14 2,040 9,060 1,740 9,040 12.1 <0.920 34.6 <<21.5 <1.72 <10.8 118 761 366 2,080 624 ---------------
MW12 2/25/15 19,400 22,700 3,060 13,290 541 487 1440 <<18.5 <8.60 <13 J 137 1,220 388 2,440 637 ---------------
MW12 9/22/15 2,350 8,650 1,700 8,500 17.4 <0.92 <3.52 53.7 69.7 53.7 <1.72 20.7 10 102 758 287 1,650 429 ---------------
MW12 12/17/15 934 3,420 796 4,160 <33.8 <18.4 <70.4 <75.6 <12 <18.4 <34.4 <36 <17.8 54 J 470 140 948 280 ---------------
MW12 3/14/16
MW12 9/14/16
MW12 3/14/17 5,540 18,200 2,000 11,500 11.1 4.21 193 107 <0.0600 <0.0920 <0.172 27 40.1 206 806 246 1,800 426 9.04 0.5 9.58 48 -----------
MW12 9/14/17 6,520 16,700 2,470 13,000 <33.8 <18.4 176 <<12.0 <<34.4 <36.0 228 78 854 220 1,830 446 <50.6 <236 <70.4 -----------
MW12 4/5/18 4,730 17,900 2,850 12,700 <33.8 <18.4 134 <75.6 <<<<36.0 296 288 1,010 456 2,180 696 <<<<-----------
MW12 10/8/18 5,190 18,300 2,290 11,040 < 33.8 < 18.4 172 < 56.0 <<< 32.0 < 36.0 < 17.8 106 1,010 256 1,800 482 < 50.6 << 14.8 < 64.0 -----------
MW12 5/16/19 3,160 12,800 1,840 9,610 < 33.8 < 18.4 < 70.4 << 12.0 < 18.4 < 32.0 < 36.0 < 17.8 < 19.6 786 230 1,720 502 < 50.6 <<< 64.0 -----------
MW12 10/22/19 4,420 18,600 2,650 12,680 < 16.9 < 9.20 < 35.2 < 28.0 < 6.00 < 9.20 < 16.0 < 18.0 < 8.90 105 858 272 1,940 520 < 25.3 << 7.40 < 32.0 -----------
MW12 4/17/20 1,730 12,100 1,810 14,910 < 16.9 < 9.20 < 35.2 << 6.00 < 9.20 < 16.0 < 18.0 < 8.90 84 984 159 2,270 598 < 25.3 << 7.40 < 32.0 -----------
MW12 10/13/20 3,430 18,200 2,430 12,370 < 9.88 < 18.0 < 227 < 51.5 147 30.5 < 19.1 27 19.5 140 1,040 360 2,490 696 < 111 <<< 109 -----------
MW12 4/19/21 2,600 14,300 2,060 10,700 < 37.0 < 35.0 < 500 < 130 68.4 < 35.0 < 30.0 < 25.0 < 35.5 103 1,030 266 2,100 647 < 90.0 < 49.0 < 50.0 < 155 -----------
MW12 10/7/2021 3,470 20,600 2,730 13,000 < 22.0 < 20.0 < 1000 < 260 < 76.0 < 70.0 < 60.0 < 23.0 < 71.0 117 933 297 1,990 522 < 180 < 98.0 < 100 < 140 -----------
MW12 4/5/2022 1,720 14,700 2,110 9,520 < 22.0 < 20.0 1,290 < 260 < 76.0 < 70.0 < 100 < 23.0 < 71.0 107 536 234 1,410 399 < 180 <<< 140 -----------
MW12 6/29/2022 2,710 23,000 3,380 18,700 < 22.0 < 20.0 <<82.8 <<<<127 979 361 2,410 610 <<<<-----------
1 600 600 500 20 70 6,000 4,000 70 70 70 0.02 25 70 6 70 400 400 100 100 70 40 NE 3 100 40 30 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,900 70,000 50 11,700 25,000 6,000 30,000 28,500 25,000 100,000 100,000 70,000 40,000 NE 170 100,000 NE 12,500 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
Incident Name: Four Brothers 208 Incident No.: 30576
C19-C36 AliphaticsC9-C22 Aliphatics1,3,5-TrimethylbenzeneBenzyl AlcoholMTBEAnalytical Method
1,2,4-TrimethylbenzeneToluenep-Isopropyltoluenesec-ButylbenzeneStyrene2-HexanoneMW12 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
C5-C8 AliphaticsC9-C18 Aliphaticsbis(2-Ethylhexyl)phthalate2,4-DimethylphenolEthylbenzeneTotal XylenesIPEAcetonen-Butylbenzene2L Standard
NCDWM Gross Contamination Levels Naphthalenen-ProylbenzeneFREE PRODUCT 0.1'EDB2-MethylnaphthaleneLeadChloroformContaminant of Concern
FREE PRODUCT 0.1'BromomethaneMIBKIsopropylbenzene2-Butanone (MEK)1,2-DibromoethaneBenzeneIsophoroneFREE PRODUCT 0.42'
FREE PRODUCT 0.41'
0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
18,000
20,000
1/1/113/1/115/1/117/1/119/1/1111/1/111/1/123/1/125/1/127/1/129/1/1211/1/121/1/133/1/135/1/137/1/139/1/1311/1/131/1/143/1/145/1/147/1/149/1/1411/1/141/1/153/1/155/1/157/1/159/1/1511/1/151/1/163/1/165/1/167/1/169/1/1611/1/161/1/173/1/175/1/177/1/179/1/1711/1/171/1/183/1/185/1/187/1/189/1/1811/1/181/1/193/1/195/1/197/1/199/1/1911/1/191/1/203/1/205/1/207/1/209/1/2011/1/201/1/213/1/215/1/217/1/219/1/2111/1/211/1/223/1/225/1/22Contaminant Concentration (ug/L)Time
MW12 -Contaminant Concentration vs. Time
Be
To
Et
To
M
Free product 3/16 0.1' 9/16 0.1'
Free product 3/12 0.42'1/13 0.41'
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
65 65.5 66 66.5 67 67.5 68 68.5 69 69.5Contaminant Concentration (sum 6200B results ) (ug/L)Groundwater Elevation (feet)
CONTAMINANT CONCENTRATION VS. GROUNDWATER ELEVATION -MW12
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200B625625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW13 1/20/11 19,300 31,700 3,160 13,010 <65 86 1,700 ---413 115 --498 475/593 240 1,560 382 <115 <8.4 96.2 4.9 131 65,800 26,570 264 17,960 59.7 388
MW13 3/26/12 13,000 21,000 2,700 14,000 <50 56 <2500 ---290 51 --110 800 260 2,100 570 <-----------
MW13 1/28/13 11,000 14,000 2,400 12,500 <200 <200 ----310 <200 --<200 <1,000 260 1,800 530 <-----------
MW13 3/20/14 8,400 16,000 2,400 12,900 <50 <50 <2,500 ---160 <50 --120 780/-280 1,900 550 <-----------
MW13 9/22/14 8,440 14,600 2,490 13,980 <1.69 19.7 567 256 --163 <0.900 152 9.5 140 950 396 2,260 732 <-----------
MW13 2/25/15 13,300 24,400 3,070 17,900 5 25.6 1300 683 --214 <0.900 211 <0.890 139 410 391 1,860 573 <-----------
MW13 9/22/15 10,500 15,700 2,570 14,370 <1.69 21.1 932 <3.78 54.6 16.4 171 <0.9 187 9.3 116 910 302 2,280 483 <-----------
MW13 12/17/15 7,580 11,000 1,820 10,730 <8.45 16 <17.6 <18.9 <3 13 138 <4.50 <17.6 9.5 J 98.5 807 246 1,780 460 <-----------
MW13 3/14/16 10,200 12,000 2,310 11,970 <0.169 19.9 1,030 817 49.8 <0.0920 176 <0.0900 221 28.3 95 760 252 1,700 451 <-----------
MW13 9/14/16 10,200 16,100 2,400 13,000 <200 <1000 626 398 <400 <100 <200 <100 <1000 <100 <100 1,150 320 2120 586 360 -----------
MW13 3/14/17 12,500 18,200 2,850 17,200 <33.8 30 984 426 <12.0 <18.4 156 <18.0 774 268 226 928 288 2,220 536 <-----------
MW13 9/14/17 16,900 22,400 3,070 17,800 <42.2 <23.0 752 <94.5 <15.0 <168 <22.5 <88.0 <22.2 102 1,010 262 2,120 525 <-----------
MW13 4/5/18 13,100 24,800 3,240 15,400 <42.2 <23.0 1,030 <94.5 <<465 <22.5 <88.0 <22.2 345 1,210 490 2,050 692 <-----------
MW13 10/8/18 9,300 17,800 2,830 14,100 < 67.6 < 36.8 < 141 < 112 <<< 72.0 << 128 < 35.6 < 39.2 < 37.6 300 2,120 576 <-----------
MW13 5/16/19 6,810 10,500 1,810 8,650 < 67.6 < 36.8 < 141 << 24.0 < 36.8 < 72.0 < 36.0 < 128 < 35.6 < 39.2 980 240 1,500 540 <-----------
MW13 10/22/19 8,140 14,500 2,310 11,520 < 67.6 < 36.8 < 141 < 112 < 24.0 < 36.8 < 72.0 < 36.0 < 128 < 35.6 < 39.2 1,070 272 1,720 532 < 76.0 -----------
MW13 4/17/20 6,050 11,700 1,940 9,360 < 67.6 < 36.8 < 141 << 24.0 < 36.8 < 72.0 < 36.0 << 35.6 < 39.2 1,200 256 1,500 556 <-----------
MW13 10/13/20 3,470 7,900 1,040 6,250 < 4.94 < 8.99 610 239 < 8.55 < 8.40 101 < 10.1 136 < 8.39 53.8 611 113 1,080 293 < 19.7 -----------
MW13 4/19/21 17.3 26.5 2.36 31 < 0.740 < 0.700 14.4 < 2.60 < 0.760 < 0.700 < 0.500 < 0.500 < 3.10 < 0.710 < 0.530 4.56 < 0.690 7.89 3.01 < 3.00 -----------
MW13 10/7/21 6,760 10,600 1,360 8,950 < 11.0 < 10.0 < 500 < 130 43 < 35.0 191 < 9.50 < 70.0 < 35.5 72.1 877 172 1,650 483 <-----------
MW13 4/5/22 < 0.130 0.935 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 2.60 < 0.760 < 0.700 < 0.230 < 0.190 < 1.40 < 0.710 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 <-----------
MW13 6/29/22 0.225 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<-----------
1 600 600 500 20 70 6,000 4,000 70 70 0.02 0.4 40 25 70 6 70 400 400 5 NE 3 100 40 30 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 50 400 40,000 11,700 25,000 6,000 30,000 28,500 25,000 5,000 NE 170 100,000 NE 12,500 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
MW13 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
2-MethylnaphthaleneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AliphaticsLead1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzeneIncident Name: Four Brothers 208 Incident No.: 30576
Naphthalenen-ProylbenzeneMTBEIPE2-HexanoneAnalytical MethodContaminant of Concern
BenzeneMethylene Chloride2L Standard Acetone1,2-Dibromoethane1,2-Dichloroethane2-Butanone (MEK)NCDWM Gross Contamination Levels TolueneEthylbenzeneTotal Xylenesn-Butylbenzenesec-Butylbenzenep-IsopropyltolueneEDBBenzyl Alcoholbis(2-Ethylhexyl)phthalate2,4-DimethylphenolIsophorone0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
1/1/113/1/115/1/117/1/119/1/1111/1/111/1/123/1/125/1/127/1/129/1/1211/1/121/1/133/1/135/1/137/1/139/1/1311/1/131/1/143/1/145/1/147/1/149/1/1411/1/141/1/153/1/155/1/157/1/159/1/1511/1/151/1/163/1/165/1/167/1/169/1/1611/1/161/1/173/1/175/1/177/1/179/1/1711/1/171/1/183/1/185/1/187/1/189/1/1811/1/181/1/193/1/195/1/197/1/199/1/1911/1/191/1/203/1/205/1/207/1/209/1/2011/1/201/1/213/1/215/1/217/1/219/1/2111/1/211/1/223/1/225/1/22Contaminant Concentration (ug/L)Time
MW13 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
1,2-Dibromoethane
Linear (Benzene)
30,000
35,000
40,000
45,000
50,000
55,000
60,000
65,000
70,000
75,000
64 64.5 65 65.5 66 66.5 67 67.5 68 68.5 69 69.5Contaminant Concentration (sum 6200B results) (ug/L)Groundwater Elevation (feet)
CONTAMINANT CONCENTRATION VS GROUNDWATER ELEVATION -MW13
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW14 1/20/11 21,400 36,100 2,780 11,610 758 2,070 12,200 4,570 --409 972 <462 -477 <414/567 117 1,230 290 393 <43 <43 <19 151 J 92,700 24,390 286 16,960 557 420
MW14 3/26/12 19,000 33,000 2,500 12,400 1,100 2,200 9,100 5,200 --420 930 <--<100 <610 220 1,600 390 -----------
MW14 1/28/13 17,000 24,000 2,700 13,300 1,200 2,400 -4,600 --420 900 <--<250 <<1,200 250 1,600 430 -----------
MW14 3/20/14 8,100 18,000 1,500 7,900 470 950 <12,000 1,600 --180 350 <--64 <370/-150 1,100 280 -----------
MW14 9/22/14 14,800 33,100 3,130 14,320 818 1,230 9,100 4,610 --386 619 <1,090 -117 <1,010 312 2,120 503 -----------
MW14 2/25/15 14,000 31,600 3,000 13,220 739 1,220 3,700 1,960 --369 641 <674 24.5 111 <921 298 2,010 496 -----------
MW14 9/22/15 8,480 11,500 740 5,810 774 760 3,110 1,490 --257 412 <343 <4.45 <4.9 <708 53 787 178 -----------
MW14 12/17/15 7,460 10,700 637 6,120 795 826 <35.2 1,750 --340 572 <<35.2 <8.90 28 <776 51 970 217 -----------
MW14 3/14/16 745 1,610 99 1,980 371 199 1,370 497 21 1.49 132 225 <<0.352 2.06 <0.0980 <209 6.33 348 121 -----------
MW14 9/14/16 156 1,700 200 3,200 118 28.5 963 421 <50.0 <12.5 83 50.5 <174 <12.5 <12.5 47.8 375 <25.0 719 242 -----------
MW14 3/14/17 35.2 398 86.8 1,210 16.8 16.5 657 195 <1.50 <2.30 7.25 18.5 <142 35.8 22.5 35 200 15.5 310 120 -----------
MW14 9/14/17 83.2 281 93.3 1,370 11.1 11.4 590 <<0.600 <<1.80 18.7 <164 12.1 5.6 19.7 181 7.7 277 89.1 -----------
MW14 4/5/18 <0.119 4.28 4.64 75 2.02 0.86 19.2 6.6 <<<0.180 1.47 <8.18 1.68 1.51 <0.253 7.32 1.85 22 9.29 -----------
MW14 10/8/18 < 0.119 4.05 7.27 178.4 < 0.169 < 0.0920 13.1 < 0.280 <<< 0.180 <1.2 8.27 1.82 1.5 < 0.253 17.4 2.74 90.6 42.3 -----------
MW14 5/16/19 < 0.119 < 0.0570 < 0.0920 0.59 < 0.169 < 0.0920 1.85 <2.03 < 0.0920 < 0.180 < 0.0900 <<< 0.0890 < 0.0980 < 0.253 < 0.0940 < 0.0650 3.12 1.52 -----------
MW14 10/22/19 < 0.119 0.73 1.63 14.48 < 0.169 < 0.0920 3.27 < 0.280 < 0.0600 < 0.0920 < 0.180 < 0.0900 < 0.0740 2.74 0.77 0.53 < 0.253 13.8 1.95 26 9.22 -----------
MW14 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 < 0.180 < 0.0900 < 0.0740 << 0.0890 < 0.0980 < 0.253 < 0.0940 < 0.0650 < 0.103 < 0.0870 -----------
MW14 10/13/20 < 0.388 < 0.366 < 0.355 3.24 < 0.198 < 0.359 < 4.53 < 1.03 < 0.342 < 0.336 < 0.376 < 0.405 << 2.17 < 0.336 < 0.363 < 2.21 2.21 0.35 5.49 1.77 -----------
MW14 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 < 2.60 < 0.760 < 0.700 < 0.500 < 0.500 < 1.00 < 3.10 < 0.710 < 0.530 < 1.80 < 0.410 < 0.690 < 0.820 < 0.560 -----------
MW14 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<-----------
MW14 4/5/22 < 0.130 0.582 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 2.60 < 0.760 < 0.700 < 0.230 < 0.190 << 1.40 < 0.710 < 0.530 < 1.80 < 1.00 < 0.690 < 0.820 < 0.560 -----------
MW14 6/29/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<-----------
1 600 600 500 20 70 6,000 4,000 70 70 0.02 0.4 70 40 25 70 100 6 70 400 400 NE 3 100 40 30 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 50 400 70,000 40,000 11,700 25,000 100,000 6,000 30,000 28,500 25,000 NE 170 100,000 NE 12,500 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established sec-ButylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes2-Butanone (MEK)MW14 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
2-MethylnaphthaleneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsLead1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneBenzyl Alcoholbis(2-Ethylhexyl)phthalateIncident Name: Four Brothers 208 Incident No.: 30576
2,4-DimethylphenolIsophoroneC9-C22 AliphaticsIsopropylbenzeneNaphthalenen-ProylbenzeneMTBEIPEAcetone4-Methyl-2-pentanone (MIBK)EDB2L Standard
NCDWM Gross Contamination Levels 1,2-Dibromoethane1,2-Dichloroethane4-Isopropyltoluene2-HexanoneStyrenen-Butylbenzene0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
1/1/113/1/115/1/117/1/119/1/1111/1/111/1/123/1/125/1/127/1/129/1/1211/1/121/1/133/1/135/1/137/1/139/1/1311/1/131/1/143/1/145/1/147/1/149/1/1411/1/141/1/153/1/155/1/157/1/159/1/1511/1/151/1/163/1/165/1/167/1/169/1/1611/1/161/1/173/1/175/1/177/1/179/1/1711/1/171/1/183/1/185/1/187/1/189/1/1811/1/181/1/193/1/195/1/197/1/199/1/1911/1/191/1/203/1/205/1/207/1/209/1/2011/1/201/1/213/1/215/1/217/1/219/1/2111/1/211/1/223/1/225/1/22Contaminant Concentration (ug/L)Time
MW14 -Contaminant Concentration vs. Time
Benzene
Toluene
Ethylbenzene
Total Xylenes
MTBE
IPE
1,2-Dibromoethane
1,2-Dichloroethane
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP VPH/EPHMADEP EPHMADEP VPHMADEP EPH6010B504.1Sample ID Date Collected
MW15 1/20/2011
MW15 9/27/2011
MW15 3/26/12
MW15 1/28/13
MW15 3/20/14
MW15 9/22/14 7,120 17,400 1,710 9,880 10.7 78.6 -58.7 39.1 282 <0.900 10.8 121 835 352 <<1.13 2,220 722 --------
MW15 2/25/15
MW15 9/22/15 5,210 10,000 2,220 12,660 <1.69 48.3 242 59.6 <3.52 143 <0.900 11.8 115 1,260 304 <<1.13 2,130 595 --------
MW15 12/17/15 3,720 9,440 1,850 11,520 <8.45 52.5 <17.6 <18.9 <17.6 184 <4.50 12.5 107 1,190 300 <<5.65 2,450 631 --------
MW15 3/14/16 6,660 2,470 1,680 11,090 <0.169 112 <0.352 <0.378 <0.352 433 <0.0900 41.6 82.1 1,160 185 <<0.113 1,990 521 --------
MW15 9/14/16 6,740 21,000 2,470 16,000 <100 <500 315 <2000 <258 <50.0 <50.0 140 1,380 365 <<3,490 971 --------
MW15 3/14/17 3,190 9,810 1,280 13,900 <42.2 37.5 362 <94.5 <15.0 175 <22.5 <22.2 220 1,190 155 <<2,760 648 --------
MW15 9/14/17 5,980 19,200 2,390 17,800 <33.8 40 116 <75.6 <70.4 224 <18.0 240 60 1,020 154 <<2,230 554 --------
MW15 4/5/18 5,660 40,800 3,860 20,500 <33.8 <18.4 438 <75.6 <452 <18.0 298 288 1,250 438 <<2,770 832 --------
MW15 10/8/18 3,180 25,000 2,340 14,050 < 33.8 < 18.4 190 < 56.0 < 64.0 174 << 17.8 < 19.6 1,120 168 <<1,870 502 --------
MW15 5/16/19 906 5,450 490 5,050 < 33.8 < 18.4 < 70.4 << 64.0 < 36.0 < 18.0 < 17.8 < 19.6 594 < 13.0 <934 278 <--------
MW15 10/22/19 2,620 18,100 1,560 13,530 < 16.9 < 9.20 < 35.2 < 28.0 < 32.0 149 < 9.00 < 8.90 55 952 113 <<1,860 487 --------
MW15 4/17/20 377 1,950 146 2,390 < 16.9 < 9.20 < 35.2 << 32.0 77 < 9.00 < 8.90 < 9.80 360 < 6.50 <<265 180 --------
MW15 10/13/20 1,840 15,200 1,750 11,390 < 9.88 < 18.0 292 < 51.5 < 109 110 < 20.3 < 16.8 70 903 165 <<1,720 456 --------
MW15 4/19/21 1,250 7,380 560 7,020 < 37.0 < 35.0 < 500 < 130 < 155 < 25.0 < 25.0 < 35.5 < 26.5 774 < 34.5 << 25.0 1,100 306 --------
MW15 10/7/21 2,020 7,510 2,040 12,800 < 11.0 < 10.0 < 500 < 130 < 70.0 73.5 < 9.50 < 35.5 91.8 1,210 221 <<2,400 643 --------
MW15 4/5/22 768 4,010 1,620 8,390 < 2.20 < 2.00 < 100 < 26.0 < 14.0 25.7 < 1.90 < 7.10 73.8 640 156 7.31 <1,400 382 --------
MW15 6/29/22 878 3,400 943 7,140 < 4.40 < 4.00 <<<43.1 <<35.7 354 71.6 <<872 280 --------
1 600 600 500 20 70 6,000 4,000 40 0.02 0.40 25 70 6 70 70 NE 400 400 400 700 200 10,000 700*200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 40,000 50 400 11,700 25,000 6,000 30,000 8,500 NE 28,500 25,000 NE NE NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
4. < = denotes less than sample detection limit.
5. NE - GCL not established;
MW15 - HISTORICAL GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
Contaminant of Concern
BenzeneC9-C10 AliphaticsC19-C36 AliphaticsAcetonen-Proylbenzenep-IsopropyltolueneMTBEC9-C22 AromaticsIPEEDBNCDWM Gross Contamination Levels C9-C12 Aliphatics1,2-DibromoethaneNaphthaleneFREE PRODUCT 0.1'
FREE PRODUCT 0.05'
FREE PRODUCT 0.01'Total Xylenes1,1,2-TrichloroethaneEthylbenzene2L Standard
FREE PRODUCT 0.04'1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneC5-C8 AliphaticsFREE PRODUCT 0.07'C9-C18 AliphaticsTolueneLeadSec-ButylbenzeneFREE PRODUCT 0.02'Isopropylbenzene1,2-Dichloroethane2-Butanone (MEK)2-Hexanone0
10000
20000
30000
40000
50000
60000
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW15
Benzene
Toluene
Ethylbenzene
Total Xylenes
Naphthalene
Free product:1/11 0.01' 9/11 .04' 3/12 0.1' 1/13 0 .05' 3/14 0.07' Free product:2/15 0.02'
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B625625625625625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW16 1/20/11 0.28 J 1.1 0.37 J 1.49 J 0.41 J 0.16 J 6.3 J 0.28 J 0.85 4.7 0.18 J/<0.78 0.15 J 0.28 J <0.10 <0.98 33.9 <1.1 <0.49 <0.56 <35 140 B 375 B 215 <5 0.013 J
MW16 3/26/12 <1 <5 <1 <3 <1 <1 <50 <1 <1 <10 <5 <1 <1 <1 -----------
MW16 1/28/13 <1 <5 <1 <3 <1 <1 <50 <1 <1 <10 <5 <1 <1 <1 -----------
MW16 3/20/14 <1 <5 <1 <3 <1 <1 <50 <1 <1 <10 <5 <1 <1 <1 -----------
MW16 9/22/14 <0.119 <0.0570 <0.0920 <0.298 0.330 J <0.0920 <0.352 <0.172 <0.0980 <0.378 <0.0940 0.210 J <0.103 <0.0870 -----------
MW16 2/25/15 <0.119 0.91 <0.0920 0.662 <0.169 <0.0920 <0.352 <0.172 <0.0980 <0.378 <0.0940 <0.0540 <0.103 <0.0870 -----------
MW16 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 <0.172 <0.0980 <0.378 <0.0940 <0.0540 <0.103 <0.0870 -----------
MW16 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 <0.172 <0.0980 <0.378 <0.0940 <0.0540 <0.103 <0.0870 -----------
MW16 3/14/16 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 0.210 J <0.0980 <0.378 <0.0940 <0.0540 <0.103 <0.0870 -----------
MW16 3/14/17 <0.119 <0.0570 <0.0920 <0.180 0.17 <0.0920 <0.352 0.36 <0.0980 <0.378 <0.0940 <<0.103 <0.0870 -----------
MW16 9/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 0.21 <0.0980 <0.378 <0.0940 0.13 <0.103 <0.0870 -----------
MW16 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<-----------
1 600 600 500 20 70 6,000 70 70 4,000 6 0.7 400 400 NE 3 100 40 30 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 70,000 25,000 4,000,000 6,000 700 28,500 25,000 NE 170 100,000 NE 12,500 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. Italics denotes a Gross Contamination Level violation.
5. < = denotes less than sample detection limit.
6. NE = GCL not established
7. "J" = Indicates an estimated value
8. "B" = Indicates analyte found in associated method blank Benzyl AlcoholIsophoroneMW16 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
Contaminant of Concern
BenzeneC19-C36 AliphaticsC9-C22 AliphaticsLeadEDBToluenebis(2-Ethylhexyl)phthalateTetrachloroethyleneC9-C18 AliphaticsNaphthalene1,3,5-TrimethylbenzeneMethyl ethyl ketone2-MethylnaphthaleneChloroformC5-C8 AliphaticsNCDWM Gross Contamination Levels 2,4-DimethylphenolIPEEthylbenzeneTotal XylenesIsopropylbenzeneMTBEAcetone1,2,4-Trimethylbenzene2L Standard
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW17 9/27/11 2,000 3,700 740 3,800 <50 <50 ------<<50 55 360/220 140 1,000 250 9,700 8,000 <100 2,720 25 36
MW17 3/26/12 490 560 700 3,700 <25 <25 ------<-46 230/-96 830 220 ------
MW17 1/28/13 690 170 750 3,400 <20 <20 ------<21 66 240/-160 990 300 ------
MW17 3/20/14 140 150 150 720 <5 <5 ------<<5 17 54/-39 240 72 ------
MW17 9/22/14 136 46.8 162 711 <0.169 1.12 ----1.34 1.55 <5.8 19 86.1 49.9 349 93.2 ------
MW17 2/25/15 35.9 9.51 115 488 <0.169 <0.0920 ----<0.180 <0.0900 <2.39 23.8 94.7 54.6 330 100 ------
MW17 9/22/15 74.2 7.74 273 1,172 <0.169 0.43 9.91 5.27 23 7.59 <0.180 <0.0900 <4.11 45.6 195 104 690 204 ------
MW17 12/17/15 53.7 7.5 278 1,180 <1.69 <0.920 <3.52 <3.78 <0.600 5.2 <1.80 <0.900 <3 35.8 207 80.4 539 157 ------
MW17 3/14/16 52.3 6.3 97.6 594 <0.169 0.46 <0.352 <0.378 3.04 0.99 0.56 <0.0900 <0.6 7.41 52 17.2 164 31.8 ------
MW17 9/14/16 256 19 658 3,150 <5.00 1.8 12 <100 27.4 7.6 2.85 <2.50 14 3.85 57.8 305 128 964 265 ------
MW17 3/14/17 688 47.5 1,010 6,850 <1.69 3.5 30.2 <3.78 <0.600 <0.920 5.8 <0.900 48.8 27.2 62.1 325 136 1,320 396 ------
MW17 9/14/17 452 42.2 448 3,020 <4.22 <2.30 <8.80 <9.45 <1.50 <<4.50 <2.25 <8.80 34.2 31.2 248 80.8 829 252 ------
MW17 4/5/18 70.3 2 69.4 398 <1.69 <0.920 <3.52 <3.78 <<<1.80 <0.900 <3.52 <0.890 14.3 42.5 18.6 83.2 33.1 ------
MW17 10/8/18 3.51 < 0.0570 2.99 35.7 < 0.169 < 0.0920 < 0.352 < 0.280 <<< 0.180 << 0.320 < 0.0890 1.67 8.84 3.08 18.1 10.6 ------
MW17 5/16/19 0.72 < 0.0570 < 0.0920 6.66 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 0.62 < 0.0940 1.11 2.08 2.3 ------
MW17 10/22/19 4.46 < 0.0570 0.71 19.28 < 0.169 < 0.0920 < 0.352 < 0.280 < 0.0600 < 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 1.67 9.75 3.11 17.1 9.93 ------
MW17 4/17/20 1.64 < 0.0570 < 0.0920 4.48 < 0.169 < 0.0920 < 0.352 << 0.0600 < 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 0.95 3.81 1.41 1.33 2.63 ------
MW17 10/13/20 2.43 < 0.366 0.49 3.39 < 0.198 < 0.359 < 4.53 < 1.03 < 0.342 < 0.336 < 0.376 < 4.05 < 2.17 < 0.336 0.47 2.48 0.91 2.09 1.73 ------
MW17 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 < 2.60 < 0.760 < 0.700 < 0.500 < 0.500 < 3.10 < 0.710 < 0.530 < 1.00 < 0.690 < 0.820 < 0.560 ------
MW17 10/7/21 2.69 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<1.06 0.754 <0.83 ------
MW17 4/5/22 5.3 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 < 2.60 < 0.760 < 0.700 < 0.230 < 0.190 < 1.40 < 0.710 0.946 3.65 < 0.690 < 0.820 1.39 ------
MW17 6/29/22 0.654 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<------
1 600 600 500 20 70 6,000 4,000 70 70 0.02 0.4 40 25 70 6 70 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 50 400 40,000 11,700 25,000 6,000 30,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established Lead2-Butanone (MEK)Acetonen-Butylbenzenesec-Butylbenzene2-Hexanonen-ProylbenzeneC19-C36 AliphaticsMW17 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
1,3,5-TrimethylbenzeneC5-C8 AliphaticsC9-C18 AliphaticsEDBIsopropylbenzeneC9-C22 Aliphatics1,2-DibromoethaneNaphthaleneAnalytical Method
2L Standard IPEMTBETotal Xylenes1,2,4-Trimethylbenzenep-IsopropyltolueneNCDWM Gross Contamination Levels BenzeneTolueneEthylbenzene1,2-DichloroethaneContaminant of Concern
0
200
400
600
800
1,000
1,200
1,400
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW17
Benzene
Toluene
Ethylbenzene
Total Xylenes
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW18 9/27/11 610 740 230 1,250 <20 <20 <20 <20 -43 <20 240/98 110 790 220 4,500 4,500 <100 1,900 5.6 3.1
MW18 3/26/12 <10 <50 110 770 <10 <10 18 11 -74 -180 170 1,200 350 ------
MW18 1/28/13 <10 <50 65 580 <10 <10 24 12 -72 26 210 160 1,000 330 ------
MW18 3/20/14 <5 <25 11 178 <5 <5 11 7 -43 <5 77 94 700 200 ------
MW18 9/22/14 0.36 0.6 3.39 89.5 <0.169 <0.0920 <0.0600 10 -33.9 6.15 48.5 93.3 616 186 ------
MW18 2/25/15 <0.119 <0.0570 3.79 99.2 <0.169 <0.0920 <0.0600 8.99 -<0.0890 5.44 63.6 87.6 630 200 ------
MW18 9/22/15 <0.119 <0.0570 2.03 62.9 <0.169 <0.0920 30.3 8.74 -33 5.11 44.4 92.7 491 174 ------
MW18 12/17/15 <0.119 <0.0570 2.88 93.2 <0.169 <0.0920 31.9 9.85 -54.6 6.35 94 127 728 254 ------
MW18 3/14/16 8.12 2.06 2.42 50.9 <0.169 <0.0920 18.7 6.08 0.21 27.6 3.58 28.5 73 486 165 ------
MW18 9/14/16 15.5 1.14 2.32 38.9 <1.00 <5.00 62.3 16.1 <36.5 8.49 25 119 490 244 ------
MW18 3/14/17 10.7 23.2 5.7 48.1 <1.69 <0.920 <0.600 <0.920 17.6 26.1 39.8 55.8 295 139 ------
MW18 9/14/17 24.9 0.48 4.46 21.1 <0.169 <0.0920 <0.0600 <<5.06 9.48 6.92 17.4 108 59.4 ------
1 600 600 500 20 70 70 70 70 70 25 6 70 400 400 400 700 10,000 200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 15,000 25,000 11,700 6,000 30,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established
Well destroyedtert-ButylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AliphaticsLeadMTBEIPEIsopropylbenzeneNaphthalenen-Proylbenzene1,2,4-TrimethylbenzeneMW18 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
p-IsopropyltolueneEDB2L Standard
NCDWM Gross Contamination Levels n-Butylbenzenesec-ButylbenzeneIncident Name: Four Brothers 208 Incident No.: 30576
1,3,5-TrimethylbenzeneC5-C8 Aliphatics0
200
400
600
800
1,000
1,200
1,400
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW18
Benzene
Ethylbenzene
Total Xylenes
n-Proylbenzene
1,2,4-Trimethylbenzene
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW19 9/27/11 410 970 390 1,670 <20 <20 <20 <20 34 <20 150/77 70 390 100 3,100 3,300 <100 1,290 <5 2.4
MW19 3/26/12 27 70 160 600 <10 <10 <10 <10 32 <10 120/-58 230 65 ------
MW19 1/28/13 <2 <10 54 140 <2 <2 3.9 2.6 22 6.2 72/-28 76 25 ------
MW19 3/20/14 <1 <5 <1 5.1 <1 <1 <1 <1 2.4 <1 <5/-1.2 3.2 1.2 ------
MW19 9/22/14 <0.119 <0.0570 <0.0920 3.946 <0.169 <0.0920 <0.0600 <0.0920 4.03 1.07 5.89 1.21 <0.103 <0.0870 ------
MW19 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.0600 <0.0920 4.48 <0.0890 6.87 1.14 2.63 <0.0870 ------
MW19 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 3.95 1.7 9 <0.0890 18.3 2.36 2.9 1.24 ------
MW19 12/21/15 <0.119 <0.0570 <0.0920 6.42 <0.169 <0.0920 8.12 2.88 15.6 1.29 <0.0940 5.27 12.2 4.29 ------
MW19 3/14/16 <0.119 <0.0570 <0.0920 1.4 <0.169 <0.0920 1.57 J <0.0920 4.02 <0.0890 5.55 <0.0650 <0.103 <0.0870 ------
MW19 10/7/21 5.51 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<0.796 <1.57 <<<------
1 600 600 500 20 70 70 70 70 25 6 70 400 400 400 700 10,000 200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 25,000 11,700 6,000 30,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AliphaticsLeadMTBEIPEIsopropylbenzeneNaphthalenen-Proylbenzene1,2,4-TrimethylbenzeneEDB2L Standard
NCDWM Gross Contamination Levels
MW19 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
n-Butylbenzenesec-Butylbenzenep-Isopropyltoluene1,3,5-TrimethylbenzeneC5-C8 Aliphatics
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW20 9/27/11 520 <10 <10 370 <10 <10 -<10 <10 <10 -30 <10 110/76 <10 <10 <10 <1,900 990 <100 490 <5 0.33
MW20 3/26/12 670 <25 13 440 <5 6.4 -5.3 8 <5 -38 <5 140 16 <5 <5 <------
MW20 1/28/13 880 <25 36 340 <5 9.2 -7.8 9.3 <5 -37 <5 140 23 <5 6.8 <------
MW20 3/20/14 330 8.2 30 137.2 <1 2.2 -2.2 6.6 3.7 -25 1.6 77 19 2.1 2.9 <------
MW20 9/22/14 122 1.28 28.8 96.25 <0.169 0.56 -<0.0900 <0.0600 <0.0920 -25.5 9.33 89.2 27.3 1.05 3.33 <------
MW20 2/25/15 117 0.67 16.8 43.09 <0.169 0.75 -<0.0900 <0.0600 3.07 7.93 18.8 1.43 57.1 16.5 0.68 2.44 <------
MW20 9/22/15 204 0.68 17.2 14.24 <0.169 0.91 117 <0.0900 5.67 3.45 <0.0890 18 1.83 94.6 17.9 1.85 <0.0870 <------
MW20 12/17/15 159 1.23 17.8 27.9 <0.169 <0.0920 <0.352 <0.0900 6.41 3.69 <0.0890 20.6 1.57 71.1 17.6 7.17 2.1 <------
MW20 3/14/16 75.2 0.17 12 10.97 <0.169 0.33 <0.352 <0.0900 4.81 3.03 <0.0890 18.5 1.21 39.5 17.1 1.1 0.350 J <------
MW20 9/14/16 106 0.79 28.6 23.5 <1.00 <5.00 <5.00 <0.500 6.7 <0.500 <34 2.64 25.2 44.6 5.7 1.63 18.8 ------
MW20 3/14/17 2.58 <0.0570 0.64 2.05 <0.169 0.12 <0.352 <0.0900 1.68 <0.0920 <2.68 1.95 3.1 1.37 <0.103 <0.0870 <------
MW20 9/14/17 98 0.25 12.8 8.72 <0.169 0.26 <0.352 <0.0900 5.19 <<23.6 2.41 4.8 33 1.38 0.39 <------
MW20 10/7/21 24 < 0.410 4.09 3.88 < 0.220 < 0.200 <<<<<0.915 <2.06 1.48 <<<------
1 600 600 500 20 70 6,000 0.4 70 70 70 70 25 6 70 400 400 4,000 400 700 10,000 200*15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 400 6,900 8,500 15,000 25,000 11,700 6,000 30,000 28,500 25,000 4,000,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established sec-Butylbenzenep-IsopropyltolueneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenestert-ButylbenzeneAcetoneC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AliphaticsLeadMTBEIPEIsopropylbenzeneNaphthalenen-Proylbenzene1,2,4-Trimethylbenzene2-Butanone (MEK)EDB2L Standard
NCDWM Gross Contamination Levels
MW20 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
1,2-Dichloroethanen-Butylbenzene1,3,5-TrimethylbenzeneC5-C8 Aliphatics0
100
200
300
400
500
600
700
800
900
1000
Contaminant concentration (ug/L)MW20 -Contaminant Concentration vs. Time
Benzene
Naphthalene
Total Xylenes
Ethylbenzene
Toluene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW21 3/26/12 210 <5 1.1 242 <1 1.7 1.2 2 1.2 --12 -69/44 -<1 <1 890 510 <100 200 <5 0.11
MW21 1/28/13 390 <10 <2 264 <2 3.9 3 3.9 2.1 --18 3.2 100 -<2 <2 ------
MW21 3/20/14 540 <5 <1 350 <1 3.3 3 3.9 2.4 --22 <1 120 -<1 <1 ------
MW21 9/22/14 685 0.98 <0.0920 769 <0.169 3.98 3.89 6.31 <0.0920 --26.4 <0.0980 164 -<0.103 <0.0870 ------
MW21 2/25/15 <0.119 15.8 14.1 19.276 <0.169 <0.0920 <0.0900 0.73 3.55 17.1 -<0.0890 11.1 122 -0.069 0.087 ------
MW21 9/22/15 565 1.2 0.31 393.7 <0.169 2.74 <0.0900 6 3.13 <0.0900 -26.5 1.28 126 2.31 1.11 <0.0870 ------
MW21 12/17/15 333 <0.0570 <0.0920 329.18 <0.169 1.76 <0.0900 5.61 2.9 <0.0900 1.93 25.3 1.35 138 2.04 <0.103 <0.0870 ------
MW21 3/14/16 420 0.61 0.22 383.57 <0.169 1.28 <0.0900 4.14 2.24 <0.0900 <0.172 20.2 0.99 111 1.49 0.82 0.29 ------
MW21 9/14/16 340 <2.50 <2.50 295 <5.00 1.5 <2.50 4 <2.50 <<22.8 <2.50 88 1.75 <2.50 <2.50 ------
MW21 3/14/17 399 22.9 4.9 398 <0.845 1.7 <0.450 10 3.1 <<0.860 26.2 9.05 117 3.7 10.2 2.9 ------
MW21 9/14/17 573 1 <0.460 411 <0.845 1.35 <0.450 4.7 <<<26.5 7.65 114 1.8 0.7 <0.435 ------
MW21 10/7/21 74 < 0.410 < 0.500 15.1 < 0.220 2.82 <1.36 2.32 <<14.6 <21.9 <<<------
1 600 600 500 20 70 0.4 70 70 24 70 70 25 6 70 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 400 6,900 8,500 7,500 70,000 25,000 11,700 6,000 30,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established MTBEIPE1,2-Dichloroethanen-ButylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenesn-Propylbenzene1,3,5-Trimethylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalene4-Chlorotoluene1,2,4-TrimethylbenzeneChloroformMW21 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadEDBC5-C8 Aliphatics0
100
200
300
400
500
600
700
800
900
3/1/125/1/127/1/129/1/1211/1/121/1/133/1/135/1/137/1/139/1/1311/1/131/1/143/1/145/1/147/1/149/1/1411/1/141/1/153/1/155/1/157/1/159/1/1511/1/151/1/163/1/165/1/167/1/169/1/1611/1/161/1/173/1/175/1/177/1/179/1/1711/1/171/1/183/1/185/1/187/1/189/1/1811/1/181/1/193/1/195/1/197/1/199/1/1911/1/191/1/203/1/205/1/207/1/209/1/2011/1/201/1/213/1/215/1/217/1/219/1/21Contaminant Concentration (ug/L)Time
MW21 -Contaminant Concentration vs. Time
Benzene
Total Xylenes
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW22 3/26/12 7.1 <5 <1 48 2.4 12 4.5 3.3 13/9.8 -<1 <1 <170 210 <100 <200 <5 <0.010
MW22 1/28/13 1.2 <5 <1 17 5.6 21 10 2 5.6 -<1 <1 <------
MW22 3/20/14 1.1 <5 <1 5.2 6.4 18 10 <1 <5 2.54 <1 <1 <------
MW22 9/22/14 1.21 <0.0570 <0.0920 2.316 8.64 20.7 10.7 0.75 4.03 <0.0650 <0.103 <0.0870 <------
MW22 2/25/15 <0.119 <0.0570 <0.0920 1.266 9.28 23.2 9.75 <0.0980 1.01 <0.0650 0.12 <0.0870 <------
MW22 9/22/15 <0.119 <0.0570 <0.0920 <0.298 9.01 20.6 8.86 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 <------
MW22 12/17/15 0.72 <0.0570 <0.0920 <0.298 7.07 15.8 6.79 <0.0980 <0.0940 <0.0650 <0.103 <0.0870 <------
MW22 3/14/16 <0.119 <0.0570 <0.0920 <0.298 8.54 16.6 7.49 <0.0980 1.05 <0.0650 <0.103 <0.0870 <------
MW22 9/14/16 <0.500 <0.500 <0.500 <1.00 6.79 11.9 6.17 <0.500 <2.00 <1.00 <0.500 <0.500 <------
MW22 3/14/17 0.47 <0.0570 <0.0920 0.76 5.29 12.9 4.96 0.78 <0.0940 <0.0650 <0.103 <0.0870 <------
MW22 9/14/17 0.57 <0.0570 <0.0920 <0.180 2.89 7.65 4.07 0.12 <0.0940 0.1 <0.103 <0.0870 0.9 ------
MW22 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 14.9 13.2 2.08 <1.83 <<<<------
1 600 600 500 20 70 0.4 70 6 70 400 400 3 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 400 25,000 6,000 30,000 28,500 25,000 3,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established
* Note that 2L Standards listed for the C9-C12 Aliphatics and C9-C10 Aromatics are actually the 2L Standards for the C9-C18 Aliphatics and C9-C22 Aromatics.
MW22 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
EDBChloromethaneAnalytical Method
BenzeneTolueneEthylbenzeneTotal XylenesC9-C18 Aliphatics2L Standard 1,2,4-TrimethylbenzeneNCDWM Gross Contamination Levels MTBEIPEContaminant of Concern
Isopropylbenzene1,2-Dichloroethanen-PropylbenzeneC19-C36 AliphaticsC9-C22 AromaticsLeadC5-C8 AliphaticsNaphthalene1,3,5-Trimethylbenzene0
5
10
15
20
25
30
35
Contaminant Concentration (ug/L)Time
MW22 -Contaminant Concentration vs. Time
Benzene
1,2-Dichloroethane
Total Xylenes
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW23 8/29/12 490 <5 <1 132 <1 12 -12 1.1 <1 -6.9 -37/25 -<1 <1 1,100 320 <100 <200 <5 0.59
MW23 1/28/13 500 <25 <5 150 <5 12 -14 <5 <5 -6.9 -36 -<5 <5 ------
MW23 3/20/14 520 <25 11 150 <5 11 -11 <5 <5 -7.6 -52 -<5 <5 ------
MW23 9/22/14 658 0.43 <0.0920 173.18 <0.169 11.6 -13.5 2.15 1.36 0.29 12.2 -84 -<0.103 <0.0870 ------
MW23 2/25/15 590 <0.0570 <0.0920 96.276 <0.169 13.3 -12.8 1.86 1.27 1.29 11 -72.6 -<0.103 <0.0870 ------
MW23 9/22/15 695 0.18 0.26 97 <0.169 13 1.07 13.3 <0.0600 1.65 1.52 13 78.9 1.08 <0.103 <0.0870 ------
MW23 12/17/15 700 <0.0570 <0.0920 45.28 <0.169 10.9 0.79 11 2.01 1.24 0.29 10.7 1.25 78.3 0.7 <0.103 <0.0870 ------
MW23 3/14/16 879 0.61 0.74 148.15 <0.169 17.2 <0.180 15.6 2.21 1.5 0.38 13.2 <0.172 84.6 1.86 0.67 0.21 ------
MW23 9/14/16 984 <5.00 2.1 142 1.8 15.4 13.6 4.8 2.3 2.5 18.8 166 5.4 12 4 ------
MW23 3/14/17 1,580 5.9 <0.920 125 <1.69 15.4 <1.80 18 <0.600 <0.920 <0.890 17.6 <1.72 76.9 2.5 <1.03 <0.870 ------
MW23 9/14/17 1,100 <1.42 3.25 88.5 <4.22 <2.30 <4.50 13.5 2.75 <27.2 11.5 <107 2.75 6 2.25 ------
MW23 4/5/18 874 <1.42 <2.30 85.5 <4.22 <2.30 <4.50 <2.25 <<<2.22 37.5 <4.30 114 <1.62 <2.58 <2.18 ------
MW23 10/8/18 545 14 < 2.30 30.8 < 4.23 < 2.30 < 4.50 <<<< 2.23 13.8 < 4.00 < 2.35 < 1.63 < 2.58 < 2.18 ------
MW23 5/16/19 410 < 0.0570 0.86 91.45 < 0.169 2.82 < 0.180 5.07 3.63 3.26 1.21 24.2 < 0.160 114 3.2 0.96 0.6 ------
MW23 10/22/19 274 < 0.0570 1.2 31.61 < 0.169 1.47 < 0.180 3.41 3.16 3.16 1.32 21.3 < 0.160 91.8 4.21 0.57 0.63 ------
MW23 4/17/20 343 < 0.0570 1.25 44.04 < 0.169 2.31 < 0.180 2.89 3.28 3.27 < 0.0890 23.3 < 0.160 99.3 5.32 0.84 0.67 ------
MW23 10/13/20 229 < 0.366 0.72 18.4 < 0.198 1.82 0.42 < 0.405 2.26 < 0.336 1.08 17.4 < 0.382 74.1 5.19 < 0.335 < 0.352 ------
MW23 4/19/21 168 < 0.410 0.739 17.6 < 0.740 1.44 < 0.500 < 0.500 0.812 1.39 0.712 9.29 < 0.600 40.2 0.812 1.09 1.46 ------
MW23 10/7/21 170 0.524 1.53 43.1 < 0.220 0.906 <<2.62 3.09 1.45 13.9 <35.8 6.41 3.5 7.04 ------
MW23 4/5/22 181 < 0.410 1.12 24.3 < 0.220 0.748 0.322 5.83 2.59 3.68 1.41 14 < 1.00 51.1 5.66 3.52 3.85 ------
MW23 6/29/22 278 < 0.410 1.31 34.2 < 0.220 0.888 <<3.17 3.93 1.5 15.8 <40 5.12 5.48 4.24 ------
1 600 600 500 20 70 0.02 0.4 70 70 25 70 70 6 70 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 50 400 6,900 8,500 11,700 25,000 70,000 6,000 30,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established MTBEIPE2L Standard
NCDWM Gross Contamination Levels sec-Butylbenzenen-PropylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1,2-Dichloroethanen-Butylbenzenep-Isopropyltoluene1,2-DibromoethaneChloroformMW23 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
EDBIsopropylbenzeneNaphthaleneC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadC5-C8 Aliphatics0
200
400
600
800
1000
1200
1400
1600
Contaminant Concentration (ug/L)MW23 -Contaminant Concentration vs. Time
Benzene
1,2-Dichloroethane
Naphthalene
Total Xylenes
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW24 8/29/12 34 <5 <1 34 14 60 --4.1 1.2 -9.8/4.8 --<1 <1 210 <200 <100 <200 <5 0.018
MW24 1/28/13 18 <5 <1 24 8.4 39 --3.1 <1 -<5 --<1 <1 ------
MW24 3/20/14 14 <5 <1 18 11 40 --2.5 <1 -<5 --<1 <1 ------
MW24 9/22/14 223 0.62 0.42 198.24 72.1 257 -0.85 16.3 6.33 0.43 59.5 --<0.103 <0.0870 ------
MW24 2/25/15 137 0.38 0.27 146.18 55.6 180 -0.69 13.7 4.61 0.38 46.6 --<0.103 <0.0870 ------
MW24 9/22/15 202 0.56 0.42 201.25 67 223 1.09 0.96 17.1 6.61 0.47 65.3 1.22 -<0.103 <0.0870 ------
MW24 12/17/15 52.8 <0.0570 <0.0920 46.48 29.1 131 0.41 0.36 8.68 2.46 0.18 24.8 0.34 -<0.103 <0.0870 ------
MW24 3/14/16 98.9 0.26 <0.0920 93.78 45.3 152 0.53 0.47 12 3.33 0.25 30.7 <0.0650 2.88 <0.103 <0.0870 ------
MW24 9/14/16 275 <0.500 0.9 186 86.4 243 2.21 1.46 22.9 9.45 0.76 73.3 2.95 <4.34 1.69 ------
MW24 3/14/17 448 4.25 1.05 180 75.8 316 6.65 <0.460 30.2 8.95 6.6 64 1.3 <0.370 <0.515 <0.435 ------
MW24 9/14/17 544 2.2 1.1 232 77.2 349 1.3 <35 8 10.8 74.8 1.8 <0.740 1.6 <0.870 ------
MW24 10/7/21 320 < 0.820 < 1.00 51.1 35.7 94.7 <<2.15 <19.5 <<<<------
1 600 600 500 20 70 70 70 0.4 70 25 6 70 70 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,900 8,500 400 25,000 11,700 6,000 30,000 70,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established n-Butylbenzenen-PropylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesC5-C8 Aliphatics1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzeneNaphthaleneMTBEIPE1,2-Dichloroethanep-Isopropyltoluenesec-ButylbenzeneStyreneMW24 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadEDB0
100
200
300
400
500
600
8/1/1210/1/1212/1/122/1/134/1/136/1/138/1/1310/1/1312/1/132/1/144/1/146/1/148/1/1410/1/1412/1/142/1/154/1/156/1/158/1/1510/1/1512/1/152/1/164/1/166/1/168/1/1610/1/1612/1/162/1/174/1/176/1/178/1/1710/1/1712/1/172/1/184/1/186/1/188/1/1810/1/1812/1/182/1/194/1/196/1/198/1/1910/1/1912/1/192/1/204/1/206/1/208/1/2010/1/2012/1/202/1/214/1/216/1/218/1/2110/1/21Contaminant Concentration (ug/L)Time
MW24 -Contaminant Concentration vs. Time
Benzene
Total Xylenes
MTBE
IPE
1,2-Dichloroethane
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW25 8/29/12 1,900 16 5.6 320 62 230 <140 1.2 -1.9 8.5 <56/49 3.6 <1 2.6 <5,000 580 <100 230 <5 0.095
MW25 1/28/13 2,200 <100 <20 280 52 250 <160 <20 -<20 <20 <<100 <20 <20 <20 <------
MW25 3/20/14 750 <5 <1 122 16 86 <53 <1 -<1 3.8 <28 <1 <1 <1 <------
MW25 9/22/14 1,290 2.68 0.63 161.5 11.1 89.6 <79.2 <0.0600 0.75 <0.0980 <0.0980 <50.5 0.87 <0.103 <0.0870 <------
MW25 2/25/15 972 2.26 <0.0920 115.18 10.4 93.4 <66.3 0.86 0.55 <0.0890 0.54 <30.6 <0.0650 <0.103 <0.0870 <------
MW25 9/22/15 1,060 1.89 0.54 122.31 10.1 93.7 <65.4 0.93 0.69 0.26 5.69 <33.7 0.83 <0.103 0.13 <------
MW25 12/17/15 879 1.35 0.39 87.04 10.8 83.9 <57.8 0.92 0.54 0.24 4.86 <35.8 0.6 <0.103 <0.0870 <------
MW25 3/14/16 846 1.03 <0.0920 88.1 9.77 78.9 <53.9 0.62 0.45 0.19 3.85 <20.7 0.54 <0.103 <0.0870 70.6 ------
MW25 9/14/16 1,210 <5.00 <5.00 43.4 7.1 74.1 <54 2.3 1.5 <5.00 8.7 <69.8 2.6 5.6 2 <------
MW25 3/14/17 1,510 15.2 9.5 90.2 5.5 73 20.5 67.5 <1.50 <2.30 <20.5 <77.2 3.75 12.8 4.75 <------
MW25 9/14/17 1,320 3 <2.30 17.2 <4.22 54.8 <50.5 <<<4.25 <78.2 <1.62 <2.58 <2.18 <------
MW25 4/5/18 832 <1.42 <2.30 44.5 10.5 57.5 <8.80 43.5 <<<2.22 <2.45 <<2.35 <1.62 <2.58 <2.18 <------
MW25 10/8/18 724 < 1.43 < 2.30 < 3.05 < 4.23 41.8 < 8.80 < 4.50 <<< 2.23 < 2.45 42.3 < 2.35 < 1.63 < 2.58 < 2.18 <------
MW25 5/16/19 563 < 0.0570 < 0.0920 3.27 1.63 26.7 < 0.352 29.8 1.97 1.11 < 0.0890 8.61 <51.1 0.83 < 0.103 < 0.0870 <------
MW25 10/22/19 658 < 0.0570 < 0.0920 2.67 0.93 18.1 < 0.352 22.1 1.88 1.29 < 0.0890 11.2 <80.9 0.93 < 0.103 < 0.0870 <------
MW25 4/17/20 374 < 0.0570 < 0.0920 3.13 < 0.169 17.4 < 0.352 15.7 1.45 1.05 0.93 8.21 <53.4 0.67 < 0.103 < 0.0870 -------
MW25 10/13/20 630 < 1.83 < 1.77 2.65 < 0.988 14 < 22.7 < 2.03 < 1.71 < 1.68 < 1.68 10.2 <88 < 1.53 < 1.68 < 1.76 -------
MW25 4/19/21 413 < 0.820 <1 5.65 < 1.48 12.5 < 20.0 < 1.00 < 1.52 < 1.40 < 1.42 6.09 <44.6 < 1.38 2.3 < 1.12 <------
MW25 10/7/21 525 < 2.05 < 2.50 < 8.00 < 1.10 11.9 <<<<<4.99 <47 <<<<------
MW25 6/29/22 484 < 0.820 < 1.00 < 3.20 0.908 8.99 <21.9 <<<4.34 <27.6 <<<<------
1 600 600 500 20 70 6,000 0.4 70 70 25 70 0.7 6 70 400 400 88 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 400 6,900 8,900 11,700 25,000 700 6,000 30,000 28,500 25,000 88,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established IsopropylbenzeneIPE1,2-Dichloroethanen-ButylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes2L Standard p-IsopropyltolueneNaphthaleneVinyl acetateMTBENCDWM Gross Contamination Levels Tetrachloroethylenen-Proylbenzene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEDBAcetonesec-ButylbenzeneMW25 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadC5-C8 Aliphatics-100
100
300
500
700
900
1,100
1,300
1,500
8/1/1210/1/1212/1/122/1/134/1/136/1/138/1/1310/1/1312/1/132/1/144/1/146/1/148/1/1410/1/1412/1/142/1/154/1/156/1/158/1/1510/1/1512/1/152/1/164/1/166/1/168/1/1610/1/1612/1/162/1/174/1/176/1/178/1/1710/1/1712/1/172/1/184/1/186/1/188/1/1810/1/1812/1/182/1/194/1/196/1/198/1/1910/1/1912/1/192/1/204/1/206/1/208/1/2010/1/2012/1/202/1/214/1/216/1/218/1/2110/1/2112/1/212/1/224/1/226/1/22Contaminant Concentration (ug/L)Time
MW25 Contaminant Concentration vs. Time
Benzene
IPE
1,2-Dichloroethane
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW26 8/29/12 <1 <5 <1 <3 <1 <1 <1 <1 <100 <200 <100 <200 <5 <0.010
MW26 1/28/13 <1 <5 <1 <3 <1 <1 <1 <1 ------
MW26 3/20/14 <1 <5 <1 <3 <1 <1 <1 <1 ------
MW26 9/22/14 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.103 <0.0870 ------
MW26 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.103 <0.0870 ------
MW26 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.103 <0.0870 ------
MW26 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.103 <0.0870 ------
MW26 10/7/2021 < 0.130 < 0.410 < 0.500 < 1.60 0.96 0.752 < 0.820 < 0.560 ------
1 600 600 500 20 70 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established 1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMTBEIPEAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesMW26 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadEDBC5-C8 Aliphatics
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B625MADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW27 8/29/12 <1 <5 <1 <3 11 22 6.2 <1 <1 <2.1 <100 <200 <100 <200 <5 <0.010
MW27 1/28/13 <1 <5 <1 <3 6.8 13 1.2 <1 <1 <-------
MW27 3/20/14 <1 <5 <1 <3 <1 <1 <1 <1 <1 <-------
MW27 9/22/14 <0.119 <0.0570 <0.0920 <0.298 16.8 20.5 7.03 <0.103 <0.0870 <-------
MW27 2/25/15 <0.119 <0.0570 <0.0920 <0.298 11.4 15.2 <0.0900 <0.103 <0.0870 <-------
MW27 9/22/15 <0.119 <0.0570 <0.0920 <0.298 18.8 21.8 10.1 <0.103 <0.0870 <-------
MW27 12/17/15 <0.119 <0.0570 <0.0920 <0.298 9.35 11.4 5.4 <0.103 <0.0870 <-------
MW27 3/14/16 <0.119 <0.0570 <0.0920 <0.298 9.85 12.3 4.88 <0.103 <0.0870 <-------
MW27 9/14/16 <0.500 <0.500 <0.500 <1.00 17.4 16.6 8.26 <0.500 <0.500 <-------
MW27 3/14/17 <0.119 <0.0570 <0.0920 <0.180 8.74 15.1 3.93 <0.103 <0.0870 0.18 -------
MW27 9/14/17 <0.119 <0.0570 <0.0920 <0.180 7.79 14.1 7.27 0.15 <0.0870 <-------
MW27 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 12.5 12.4 4.54 <<<-------
1 600 600 500 20 70 0.4 400 400 10 100 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 400 28,500 25,000 10,000 100,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established
* Note that 2L Standards listed for the C9-C12 Aliphatics and C9-C10 Aromatics are actually the 2L Standards for the C9-C18 Aliphatics and C9-C22 Aromatics.
MW27 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576 Facility ID No. 0-021926
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesEDBDiethyl phthalateC5-C8 Aliphatics1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMTBEIPE1,2-Dichloroethane2L Standard
NCDWM Gross Contamination Levels C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadBromomethane0
5
10
15
20
25
Contaminant Concentration (ug/L)Time
Contaminant Concentration vs. Time -MW27
1,2-Dichloroethane
MTBE
IPE
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B/6256200B6200BMADEP VPHMADEP VPH/EPHMADEP EPHMADEP VPH/EPH6010B504.1Sample ID Date Collected
MW28 8/29/12 53 <1 <1 <3 28 42 -11 <<5/1 <1 <1 170 <200 <100 <200 <5 <0.010
MW28 1/28/13 34 <5 <1 <3 28 49 -13 <<5/-<1 <1 ------
MW28 3/20/14 38 <5 <1 <3 27 50 -15 <<5/-<1 <1 ------
MW28 9/22/14 11 <0.0570 <0.0920 <0.298 23.8 25.2 -8.4 <<0.0940 <0.103 <0.0870 ------
MW28 3/11/15 17.5 <0.0570 <0.0920 <0.298 25.5 39.7 -<0.0900 <<0.0940 <0.103 <0.0870 ------
MW28 9/22/15 1.2 <0.0570 <0.0920 <0.298 19.5 14.4 -4.85 <<0.0940 <0.103 <0.0870 ------
MW28 12/17/15 <0.119 <0.0570 <0.0920 <0.298 19.9 30 -<0.0900 <<0.0940 <0.103 <0.0870 ------
MW28 3/14/16 <0.119 <0.0570 <0.0920 <0.298 26.8 41.8 -12.3 <<0.0940 <0.103 <0.0870 ------
MW28 9/14/16 <0.500 <0.500 <0.500 <1.00 22.4 30.5 -12.4 <<2.00 <0.500 <0.500 ------
MW28 3/14/17 0.23 <0.0570 <0.0920 <0.180 24.7 45.2 -10.6 <<0.0940 <0.103 <0.0870 ------
MW28 9/14/17 <0.119 <0.0570 <0.0920 <0.180 15.4 34.3 -16.1 <<0.0940 <0.103 <0.0870 ------
MW28 4/5/18 <0.119 <0.0570 <0.0920 <0.180 21.7 39.8 1.04 8.92 <<0.0940 <0.103 <0.0870 ------
MW28 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 9.09 22.1 < 0.352 < 0.180 10.6 < 0.0940 < 0.0650 < 0.103 < 0.0870 -----
MW28 5/16/19 0.92 < 0.0570 < 0.0920 < 0.122 19.7 21.7 < 0.352 10.8 << 0.0940 < 0.103 < 0.0870 ------
MW28 10/22/19 1.43 < 0.0570 < 0.0920 < 0.122 25.6 33.7 < 0.352 21.3 << 0.0940 < 0.103 < 0.0870 ------
MW28 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 12.6 13.5 < 0.352 4.05 << 0.0940 < 0.103 < 0.0870 ------
MW28 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 15.8 16.1 < 10.0 5.48 << 1.00 < 0.820 < 0.560 ------
MW28 10/7/2021 < 0.130 < 0.410 < 0.500 < 1.60 17.1 29.9 <12.8 <<<<------
MW28 4/5/2022 < 0.130 < 0.410 < 0.500 < 1.60 20.4 38.5 < 10.0 13.5 <<<<------
1 600 600 500 20 70 6,000 0.4 0.7 6 400 400 400 700 10,000 200 15 0.02
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 400 700 6,000 28,500 25,000 NE NE NE NE 15,000 50
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE = GCL not established
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthaleneMTBEIPE1,2-DichloroethaneAcetoneTetrachloroethyleneMW28 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
2L Standard
NCDWM Gross Contamination Levels C9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsLeadEDBC5-C8 Aliphatics0
10
20
30
40
50
60
Contaminant Concentration (ug/L)Time
MW28 -Contaminant Concentration vs. Time
Benzene
MTBE
1,2-Dichloroethane
IPE
0
20
40
60
80
100
120
140
Contaminant Concentration (ug/L)Time
MW28 -Contaminant Concentration vs. Time
BTEX+MTBE+IPE
Linear (BTEX+MTBE+IPE)
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
RW1 1/28/13
RW1 3/20/14
RW1 9/22/14 3,550 9,390 1,180 6,290 <1.69 4.7 <76.6 <0.900 <<0.600 10.2 5.4 69.2 <3.78 <-489 172 965 298 <
RW1 2/25/15 4,190 10,100 1,490 7,320 <1.69 <0.920 <87.3 <0.900 <<0.600 <0.920 <0.890 81.4 <3.78 <-594 226 1,230 328 <
RW1 9/22/15 2,020 3,970 862 4,590 <1.69 <0.920 <33.2 <0.900 <50.5 14.3 7.5 62.9 <3.78 <-480 152 961 264 <
RW1 12/17/15 2,730 11,000 1,320 7,270 <8.45 <4.60 <35.5 <4.50 <76.5 19 11.5 86 <18.9 <-686 222 1,630 442 <
RW1 3/14/16 4,250 11,700 1,690 9,210 <8.45 <4.60 <124 <4.50 <64 <4.60 <4.45 86 501 <588 913 231 1,690 443 <
RW1 3/14/17 145 78.1 8.1 86.6 38.8 5.9 99.5 7.7 5.7 <<0.600 <0.920 <0.890 6.9 29.5 <<33.9 0.9 10.2 3.4 <
RW1 9/14/17 5,790 74 603 1,640 <0.338 0.74 82.7 34.4 <0.180 48.1 <0.120 <20.4 82.4 <0.756 6 <291 142 426 273 7.66
RW1 4/5/18 3,930 9,790 1,530 6,330 <16.9 <9.20 115 <18.0 <9.00 <35.2 <<<8.90 154 <37.8 <25.3 <518 214 803 278 <
RW1 10/8/18 2,220 6,500 1,130 4,990 < 16.9 < 9.20 < 35.2 < 18.0 <<<<< 8.90 58 << 25.3 <554 128 723 203 < 7.40
RW1 5/16/19 3,690 9,940 1,020 6,740 < 16.9 < 9.20 < 35.2 72 < 9.00 108 < 6.00 < 9.20 < 8.90 < 9.80 < 25.3 1,220 100 1,510 379 <
RW1 10/22/19 3,340 9,990 1,580 7,640 < 16.9 < 9.20 < 35.2 < 18.0 < 9.00 < 32.0 < 6.00 < 9.20 < 8.90 71 < 28.0 < 25.3 614 175 1,370 360 < 7.40
RW1 4/17/20 3,850 14,000 1,460 8,870 < 16.9 < 9.20 < 35.2 < 18.0 < 9.00 < 32.0 < 6.00 < 9.20 < 8.90 61 << 25.3 <983 153 1,430 448 < 7.40
RW1 10/13/20 3,080 9,710 1,530 7,400 < 4.94 < 8.99 < 113 27.8 < 10.1 < 54.3 < 8.55 8.5 < 8.39 73.5 << 55.3 <593 146 978 264 <
RW1 4/19/21 32.2 65 5.52 81.1 < 0.740 < 0.700 < 10.0 12 < 0.500 < 3.10 < 0.760 < 0.700 < 0.710 < 0.530 << 1.80 <6.47 < 0.690 7.09 4.12 <
RW1 10/7/2021 3,180 9,170 2,320 9,240 < 22.0 < 20.0 << 23.0 <<<<<99.7 <<<683 228 1,220 354 <
RW1 4/5/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<<
RW1 6/29/2022 0.382 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<<
1 600 600 500 20 70 6000 0.02 0.4 40 70 70 25 70 4,000 100 5 6 70 400 400 70
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 50 400 40,000 6,900 8,500 11,700 25,000 4,000,000 100,000 5,000 6,000 30,000 28,500 25,000 70,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation. n-Butylbenzenesec-ButylbenzeneMethylene chlorideMethyl ethyl ketoneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesFREE PRODUCT - 0.04'
FREE PRODUCT - 0.27'
Gross Contamination Levels 1,3,5-Trimethylbenzene2L Standard Isopropylbenzenep-IsopropyltolueneNaphthalenen-Proylbenzene1,2,4-Trimethylbenzene2-Hexanone4-Methyl-2-pentanoneStyreneAcetoneIncident Name: Four Brothers 208 Incident No.: 30576
RW1 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
MTBEIPE1,2-Dibromoethane1,2-Dichloroethane0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
Contaminant Concentation (ug/L)Contaminant Concentration vs. Time -RW1
Benzene
Toluene
Ethylbenzene
Total Xylenes
1,2-Dibromoethane
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
RW2 9/22/14 11,300 9,510 1,480 8,150 43.8 55.8 894 426 9.5 --112 5.2 86.1 <737 202 1,170 296 <<
RW2 2/25/15 9,870 10,000 1,440 7,190 53.8 60.3 1,490 779 <0.920 174 269 160 <0.890 90.3 <727 206 944 269 <<
RW2 9/22/15 87.5 166 9.5 168.4 13.7 5.8 <3.52 <3.78 <0.920 24.6 <0.900 <3.52 <0.890 <0.980 <30.7 1.2 12.5 6.1 <<
RW2 12/17/15 489 206 22.9 426 17.2 4.6 J <3.52 <3.78 <0.920 12.4 <0.900 <3.52 <0.890 3.7 <33.8 3.9 19.2 13.8 <<
RW2 3/14/16 21.3 10.9 <0.0920 24.55 9.4 1.9 103 27 <0.0920 5.91 2.09 <0.352 <0.0890 <0.0980 <4.02 <0.0650 1.22 <0.0870 <<
RW2 3/14/17 72.5 8.51 1.01 11.3 7.38 1.58 21.2 7.61 <0.0920 1.07 1.33 5.12 <0.0890 0.79 <3.24 0.18 0.38 0.19 <1.63
RW2 9/14/17 393 40.8 5.46 92.1 53 8.25 107 82.6 <6.42 6.94 45.6 1.1 0.46 <36.8 0.35 6.51 2.07 1.33 12.1
RW2 4/5/18 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 2.98 <0.378 <<0.180 <0.0900 <0.352 <0.0890 <0.0980 <<0.0940 <0.0650 <0.103 <0.0870 <<
RW2 10/8/18 1,420 220 55 419 96.3 21.5 158 90 << 4.50 <157 < 2.23 < 2.45 14.5 < 2.35 < 1.63 44.8 20.8 < 1.85 49.3
RW2 5/16/19 0.82 1.5 < 0.0920 < 0.122 5.49 < 0.0920 0.71 << 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 < 0.0980 < 0.0940 < 0.0650 < 0.103 < 0.0870 <<<
RW2 10/22/19 5.89 1.1 < 0.0920 < 0.122 4.34 < 0.0920 < 0.352 < 0.280 < 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 < 0.0980 << 0.0940 < 0.0650 < 0.103 < 0.0870 < 0.0740 < 0.253
RW2 4/17/20 6.53 16 3.34 20.8 2.44 < 0.0920 20.8 << 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 < 0.0980 <7.68 < 0.0650 4.49 1.32 < 0.0740 < 0.253
RW2 10/13/20 16.7 6.44 1.78 15.24 4.77 1.25 7.73 < 1.03 < 0.336 1.92 < 0.405 3.79 < 0.336 < 0.363 <0.88 < 0.307 1.12 < 0.352 <<
RW2 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 < 2.60 < 0.700 < 0.500 < 0.500 < 3.10 < 0.710 < 0.530 << 1.00 < 0.690 < 0.820 < 0.560 << 1.80
RW2 10/7/2021 6.33 < 0.410 < 0.500 < 1.60 0.45 0.466 <<<<<<<<<<<<<<<
RW2 4/5/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<
RW2 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <<<<<<<<<<<<<<<
1 600 600 500 20 70 6,000 4,000 70 0.02 0.4 40 25 70 0.7 6 70 400 400 70 100
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 8,500 50 400 40,000 11,700 25,000 700 6,000 30,000 28,500 25,000 70,000 100,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation. IPEAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesWM Gross Contamination Levels 2-HexanoneAcetoneNaphthalenen-Proylbenzene1,2,4-Trimethylbenzene2-Butanone (MEK)sec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneTetrachloroethyleneStyreneMIBKIncident Name: Four Brothers 208 Incident No.: 30576
RW2 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
2L Standard 1,3,5-Trimethylbenzene1,2-Dibromoethane1,2-DichloroethaneMTBE0
1,000
2,000
3,000
4,000
5,000
6,000
Benzene
Toluene
Ethylbenzene
Total Xylenes
MTBE
1,2-Dibromoethane
Naphthalene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
RW3 9/22/14 20,100 16,000 2,460 13,190 165 429 <405 -10.7 --508 20.9 123 <<1,050 271 2,140 472
RW3 2/25/15 18,200 13,900 1,940 9,370 110 409 <344 -<4.60 --<17.6 <4.45 <4.90 <<840 246 1,650 416
RW3 9/22/15 8,230 5,010 472 6,940 64.1 270 <276 28.1 7.07 393 273 <0.352 6.2 35.8 <<1,420 45.8 1,290 353
RW3 12/17/15 4,240 2,580 370 4,100 <8.45 159 <<18.9 <3 <4.60 259 195 <17.6 <4.45 27 <<450 35.5 728 205
RW3 3/14/16 14,200 12,200 1,690 9,600 113 493 <624 <3 <4.60 555 544 603 <4.45 <4.90 <<747 188 1,480 403
RW3 3/14/17 14,200 10,000 1,520 10,000 38 436 1,350 346 <12.0 <18.4 400 344 942 248 198 <<982 176 1,800 450
RW3 9/14/17 3,340 1,860 250 2,630 <8.45 140 958 610 <3.00 <321 178 812 57 16 105 <967 27.5 644 140
RW3 4/5/18 9,750 9,990 1,140 6,700 28.5 292 1,200 621 <<388 272 962 78 90.5 250 <668 134 1,270 376
RW3 10/8/18 9,300 9,870 1,040 5,940 < 8.45 252 1,100 771 <<501 <1,080 < 4.45 48 187 291 1,240 113 1,060 299
RW3 5/16/19 896 1,020 83.5 1,475 < 8.45 48.5 < 17.6 << 3.00 < 4.60 338 131 522 < 4.45 < 4.90 177 <152 < 3.25 139 107
RW3 10/22/19 2,050 3,090 299 3,820 < 16.9 < 9.20 < 35.2 < 28.0 < 6.00 < 9.20 304 < 9.00 245 < 8.90 < 9.80 < 25.3 <459 < 6.50 728 237
RW3 4/17/20 69 < 5.70 72 247 8,590 < 9.20 < 35.2 << 6.00 < 9.20 < 18.0 < 9.00 << 8.90 < 9.80 <<< 9.40 < 6.50 < 10.3 < 8.70
RW3 10/13/20 1,400 4,070 627 4,110 < 3.95 11 192 < 20.6 29 < 6.72 75.8 < 8.11 177 7.2 37.8 < 44.2 <377 87.8 984 265
RW3 4/19/21 305 688 33.5 803 < 3.70 3.94 < 50.0 25.8 < 3.80 < 3.50 19.5 14.1 71.8 < 3.55 < 2.65 12 <76.4 < 3.45 77.1 55.6
RW3 10/7/2021 1,600 5,650 1,070 6,550 < 11.0 < 10.0 < 500 204 < 38.0 < 35.0 61.8 < 9.50 190 < 35.5 60.4 < 90.0 < 6.00 472 150 1,330 379
RW3 4/5/2022 704 1,260 96.4 2,580 < 1.10 7.42 93.5 < 13.0 < 3.80 3.5 < 1.15 < 0.950 260 7.85 9.66 55.4 273 11.5 582 177
RW3 6/29/2022 401 378 20.3 1,860 < 1.10 2.88 <47.7 <<91.9 13.8 97.1 <<31.8 <150 <314 136
1 600 600 500 20 70 6000 4,000 70 70 0.02 0.4 40 25 70 100 0.7 6 70 400 400
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 6,900 8,500 50 400 40,000 11,700 25,000 100,000 700 6,000 30,000 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation. Toluene1,2,4-Trimethylbenzene1,2-Dichloroethane1,2-Dibromoethane4-Methyl-2-pentanone (MIBK)AcetoneTetrachloroethyleneGross Contamination Levels 2-Butanone (MEK)sec-Butylbenzene2-HexanoneIsopropylbenzene2L Standard IPEEthylbenzeneTotal Xylenesn-ButylbenzeneRW3 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
MTBE1,3,5-Trimethylbenzenen-ProylbenzeneNaphthalenep-IsopropyltolueneAnalytical Method
Contaminant of Concern
Benzene0
5,000
10,000
15,000
20,000
25,000
Contaminant Concentration (ug/L)CONTAMINANT CONCENTRATION VS. TIME -RW3
Benzene
Toluene
Ethylbenzene
Total Xylenes
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
SUM OF ALL 6200B RESULTS (ug/L)SUM 6200B RESULTS VS. TIME -RW3
SUM 6200B RESULTS
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
RW4 9/22/14
RW4 2/25/15
RW4 9/22/15 12.1 15.2 2.02 26.7 6.59 <0.0920 --12.7 <0.0920 2.95 1.2 <0.352 <0.0890 <0.0980 <<58.1 <0.0650 8.51 2.37 <<
RW4 12/17/15 5,560 6,880 714 4,490 288 69.1 561 -141 4.97 142 63.5 <0.352 3.94 34.1 <<800 64 722 208 <<
RW4 3/14/16 11.8 13 1.61 16.22 25.3 1.72 83.3 -33.2 <0.0920 7.21 2.73 <0.352 <0.0890 <0.0980 <<29.6 <0.0650 4.67 1.08 <<
RW4 3/14/17 6,200 10,100 1,530 8,060 <0.169 1.17 206 -63.9 23.8 58.8 <0.0900 39.4 33.1 96.2 6.93 <537 184 1,210 296 0.72 9.68
RW4 9/14/17 86.8 24.4 2.88 62.2 210 10 282 -176 <88.1 16.7 71.4 <<17.9 <166 0.3 11.2 2.5 <1.37
RW4 4/5/18 0.35 <0.0570 <0.0920 <0.180 <0.169 <0.0920 6.17 -<0.378 <<0.180 <0.0900 <0.352 <0.0890 <0.0980 <0.253 <<0.0940 <0.0650 <0.103 <0.0870 <<
RW4 10/8/18 11,500 10,600 660 4,570 < 33.8 146 < 70.4 -< 56.0 <469 << 64.0 2.32 21.8 53.7 138 < 18.8 42.2 634 152 <5.86
RW4 5/16/19 3.61 3.71 < 0.0920 2.05 2.21 < 0.0920 2.39 -<< 0.0920 1.46 < 0.0900 < 0.320 < 0.0890 < 0.0980 < 0.253 << 0.0940 < 0.0650 0.59 < 0.0870 <<
RW4 10/22/19 2.61 3.07 < 0.0920 0.8 < 0.169 < 0.0920 < 0.352 -< 0.280 < 0.0920 < 0.180 < 0.0900 < 0.320 < 0.0890 < 0.0980 <<< 0.0940 < 0.0650 < 0.103 < 0.0870 << 0.0740
RW4 4/17/20 7.52 6.68 1.1 6.35 < 0.169 < 0.0920 1.36 -<< 0.0920 < 0.180 < 0.0900 << 0.0890 < 0.0980 < 0.253 <3.18 < 0.0650 1.88 0.6 << 0.0740
RW4 10/13/20 15,900 18,700 1,600 8,470 < 19.8 51 < 453 -< 103 < 33.6 412 < 40.5 < 217 < 33.6 59 < 221 <541 128 1,080 267 <<
RW4 4/19/21 0.437 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 -< 2.60 < 0.700 < 0.500 < 0.500 < 3.10 < 0.710 < 0.530 < 1.80 << 1.00 < 0.690 < 0.820 < 0.560 <<
RW4 10/7/2021 16,500 18,600 1,920 10,500 < 22.0 25.9 <-<<<<<<112 <<743 251 1,770 471 <<
RW4 4/5/2022 < 0.130 0.477 0.944 2.84 < 0.220 < 0.200 < 10.0 -< 2.60 < 0.700 < 0.230 < 0.190 < 1.40 < 0.710 < 0.530 < 1.80 << 1.00 < 0.690 < 0.820 < 0.560 <<
RW4 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <41.9 <<<<<<<<<<<<<<<1 600 600 500 20 70 6,000 4,000 4,000 70 0.02 0.4 40 25 70 100 0.7 6 70 400 400 100 70
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 4,000,000 8,500 50 400 40,000 11,700 25,000 100,000 700 6,000 30,000 28,500 25,000 100,000 70,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
Analytical Method
Total XylenesEthanolRW4 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
FREE PRODUCT - 0.01'n-Proylbenzene1,2,4-Trimethylbenzenep-IsopropyltolueneNaphthaleneTetrachloroethyleneBenzeneToluene1,2-DichloroethaneAcetoneFREE PRODUCT - 0.35'1,3,5-Trimethylbenzene1,2-Dibromoethane2-HexanoneIsopropylbenzeneEthylbenzeneGross Contamination Levels 2-Butanone (MEK)sec-ButylbenzeneMIBKBromomethaneStyrene2L Standard MTBEIPEContaminant of Concern
0
10,000
20,000
30,000
40,000
50,000
60,000
64.5 65 65.5 66 66.5 67 67.5 68 68.5 69 69.5Contaminant Concentration (sum 6200B results) (ug/L)Groundwater Elevation (feet)
CONTAMINANT CONCENTRATION VS GROUNDWATER ELEVATION -RW4
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
RW5 9/22/14 17,600 D 22,500 D 2,250 12,820 222 282 --572 J --562 -<113 H 1,080 295 H <1,960 457 H
RW5 2/25/15 15,600 D 20,900 D 2,110 9,600 241 319 H --687 J --355 -<110 856 285 <1,630 434
RW5 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 8.24 -<0.378 --<0.352 -<<0.0980 <0.0940 <0.0650 <<0.103 <0.0870
RW5 12/17/15 11 121 D 64 783 D 2.13 <0.0920 76.5 1.14 <0.378 11.6 2.72 <0.352 1.36 <5.94 83 11.8 <195 D 70.1
RW5 3/14/16 1.04 8.81 2.71 35.4 0.480 J 0.280 J 14.5 <0.0920 <0.378 1.8 0.82 <0.352 0.120 J <0.410 J 15 1.17 <6.71 5.49
RW5 3/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 <0.378 <<0.180 <0.0900 <0.352 <0.0890 <<0.0980 <0.253 <0.0650 <<0.103 <0.0870
RW5 9/14/17 0.47 0.28 <0.0920 2.47 <0.169 <0.0920 48.7 <29.2 <0.180 0.31 13.6 1.05 3.12 <0.0980 4.71 <0.0650 <0.57 0.37
RW5 10/7/2021 0.364 14 17.8 224 < 0.220 < 0.200 39.8 2.36 30.6 < 0.230 < 0.190 14.9 2.19 5.66 6.51 65.8 11.3 4.53 147 57.9
1 600 600 500 20 70 6,000 70 4,000 0.02 0.4 40 25 100 70 6 70 70 400 400
5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 8,500 4,000,000 50 400 40,000 11,700 100,000 25,000 6,000 30,000 70,000 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation. 1,2,4-TrimethylbenzeneTotal Xylenes4-IsopropyltolueneAcetone1,2-Dichloroethanesec-Butylbenzene1,2-DibromoethaneStyreneRW5 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
Contaminant of Concern
BenzeneMTBE1,3,5-TrimethylbenzeneNaphthaleneToluenen-Proylbenzene2L Standard IPEGross Contamination Levels 2-Butanone (MEK)2-HexanoneIsopropylbenzeneMIBKEthylbenzene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
PW1 5/26/2010 <0.11 <0.11 <0.11 <0.32 0.59 <0.12 <-0.18 J <0.10 <0.11
PW1 - BEFORE POE 3/26/12 <1 <5 <1 <3 <1 <1 <50 <1 <2.5 <1 <1
PW1 - AFTER POE 3/26/12 <1 <5 <1 <3 <1 <1 <50 <1 <2.5 <1 <1
PW1 - AFTER POE 6/24/2013 <1 <5 <1 <3 <1 <1 <<1 <2.5 <1 <1
PW1 - BEFORE POE 6/24/2013 <1 <5 <1 <3 <1 <1 <<1 <2.5 <1 <1
PW1-BEFORE POE 3/20/2014 <1 <5 <1 <3 6.6 11 <50 1.4 <2.5 <1 <1
PW1 BEFORE POE 4/14/14 <1 <5 <1 <3 <1 <1 <50 <1 <2.5 <1 <1
PW1 AFTER 1st POE 4/14/14 <1 <5 <1 <3 <1 <1 <50 <1 <2.5 <1 <1
PW1 BEFORE POE 9/22/14 <0.119 <0.0570 <0.0920 <0.298 0.73 2.49 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 POST POE 9/22/14 <0.119 <0.0570 <0.0920 <0.298 0.350 J 0.290 J <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 BEFORE POE 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.0980 2.73 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 POST POE 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.0980 <0.0920 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 BEFORE POE 9/28/15 <0.119 <0.057 <0.092 <0.298 <0.169 1.7 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 AFTER 1st POE 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.0980 <0.0920 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 PRE POE 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.0980 1.19 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 POST POE 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.0980 <0.0920 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 BEFORE POE 3/14/16 <0.119 <0.0570 <0.0920 <0.298 <0.0980 <0.0920 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1 POST POE 3/14/16 <0.119 <0.0570 <0.0920 <0.298 <0.0980 <0.0920 <0.352 <0.0900 <0.0850 <0.103 <0.0870
PW1-Before 9/14/16 <0.500 <0.500 <0.500 <1.00 1.39 4.66 <5.00 <<<<
PW1-Post 9/14/16 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 <5.00 <<<<
PW1 Pre 3/14/17 <0.119 <0.0570 <0.0920 <0.180 2.21 <0.0920 <0.352 <0.0900 <<0.103 <0.0870
PW1 Post 3/14/17 <0.119 <0.0570 <0.0920 <0.180 0.98 <0.0920 <0.352 0.53 <<0.103 <0.0870
PW1 POST 9/14/17 <0.119 0.1 <0.0920 <0.180 0.66 2.03 <0.352 0.67 <<0.103 <0.0870
PW1 PRE 9/14/17 0.13 0.12 <0.0920 <0.180 0.76 2.46 <0.352 0.72 <<0.103 <0.0870
PW1 Post POE 4/5/18 <0.119 <0.0570 <0.0920 <0.180 1.11 2.58 6.33 <0.0900 <<0.103 <0.0870
PW1 Pre POE 4/5/18 <0.119 <0.0570 <0.0920 <0.180 1.35 3.45 7.55 1.08 <<0.103 <0.0870
PW1 Pre 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 0.91 2.32 <<< 0.103 < 0.0870
PW1 Post 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 <<< 0.103 < 0.0870
PW1 (Pre)5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 1.28 2.06 < 0.352 1.81 << 0.103 < 0.0870
PW1 (Post)5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 < 0.0900 << 0.103 < 0.0870
PW1 Pre 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 4.6 19.2 < 0.352 3.13 << 0.103 < 0.0870
PW1 Post 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 1.2 < 0.0920 < 0.352 < 0.0900 << 0.103 < 0.0870
PW1 Before 4/17/2020 < 0.119 < 0.0570 < 0.0920 < 0.122 1.45 5.35 < 0.352 1.43 << 0.103 < 0.0870
PW1 After 4/17/2020 < 0.119 < 0.0570 < 0.0920 < 0.122 0.63 2.1 < 0.352 < 0.0900 << 0.103 < 0.0870
PW1 Before 10/13/2020 < 0.388 < 0.366 < 0.355 < 0.359 3.88 17.4 < 4.53 2.8 << 0.335 < 0.352
PW1 After 10/13/2020 < 0.388 < 0.366 < 0.355 < 0.359 2.97 0.87 < 4.53 < 0.405 << 0.355 < 0.352
PW1 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 2.09 4.66 < 10.0 1.2 << 0.820 < 0.560
1 600 600 500 20 70 6,000 0.4 NE 400 400
Gross Contamination Levels 5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 400 NE 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE - Not established.
6. "J" - Indicates an estimated value.
August 12, 2021 Terraquest permanently abandoned water supply well PW1.
Analytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes1,3,5-Trimethylbenzene2L Standard
PW1 (Blue Café) - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
MTBEIPEMethyl chlorideAcetone1,2,4-Trimethylbenzene1,2-DichloroethaneWell disconnected from structure - municipal water main source 12/2020
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
PW2 5/26/2010 <0.11 <0.11 <0.11 <0.32 0.66 <0.12 <0.24 J 0.43 J 2 <0.10 <0.11
PW2 6/24/2013 <1 <5 <1 <3 2.1 <1 <<2.5 <1 7.4 <1 <1
PW2 3/20/2014 <1 <5 <1 <3 3.8 <1 <50 <2.5 <1 6.3 <1 <1
PW2 9/22/2014 <0.119 <0.0570 <0.0920 <0.298 7.21 <0.0920 <0.352 <0.0850 0.360 J 8.66 <0.103 <0.0870
PW2 2/25/2015 <0.119 <0.0570 <0.0920 <0.298 15.8 <0.0920 <0.352 <0.0850 <0.0540 9.92 <0.103 <0.0870
PW2 9/22/2015 <0.119 <0.0570 <0.0920 <0.298 17.5 <0.0920 <0.352 <0.0850 <0.0540 7.8 <0.103 <0.0870
PW2 12/17/2015 <0.119 <0.0570 <0.0920 <0.298 19.4 <0.0920 <0.352 <0.0850 <0.0540 6.44 <0.103 <0.0870
PW2 3/14/2016 <0.119 <0.0570 <0.0920 <0.298 16 <0.0920 <0.352 <0.0850 0.320 J 6.19 <0.103 <0.0870
PW2 3/14/17 <0.119 <0.0570 <0.0920 <0.180 28 <0.0920 <0.352 <<5.08 <0.103 <0.0870
PW2 4/5/18 <0.119 <0.0570 <0.0920 3.87 24.9 <0.0920 4.54 <0.24 2.16 <0.103 <0.0870
1 600 600 500 20 70 6,000 NE 0.7 70 400 400
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE - Not established.
6. "J" - Indicates an estimated value.
2L Standard
PW2 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
MTBEIPEChloroformMethyl chlorideTetrachloroethylenePOWER DISCONNECTED - WELL NOT ACCESSIBLE FOR SAMPLE COLLECTIONS
municipal water connected to building 9/2017 - well not active as sole source 1,3,5-Trimethylbenzene1,2,4-TrimethylbenzeneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesAcetone
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
PW3 5/26/10 <0.11 <0.11 <0.11 <0.32 <0.12 <0.12 <-0.19 J 0.71 <0.10 <0.11
PW3 6/24/13 <1 <5 <1 <3 <1 <1 <-<1 <5 <1 <1
PW3 3/20/14 <1 <5 <1 <3 <1 <1 <50 -<1 <5 <1 <1
PW3 9/22/14 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 -<0.0540 <0.172 <0.103 <0.0870
PW3 2/25/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 -<0.0540 <0.172 <0.103 <0.0870
PW3 9/22/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 -<0.0540 <0.172 <0.103 <0.0870
PW3 12/17/15 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 -<0.0540 <0.172 <0.103 <0.0870
PW3 3/14/16 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 -<0.0540 0.250 J <0.103 <0.0870
PW3 9/14/16 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 <5.00 -<<<<PW3 3/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 -<0.32 <<
PW3 9/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 -0.13 <0.172 <0.103 <0.0870
PW3 4/5/18 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 3.54 -<0.0540 <0.172 <0.103 <0.0870
PW3 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -< 0.0900 < 0.160 < 0.103 < 0.0870
PW3 5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -< 0.0900 < 0.160 < 0.103 < 0.0870
PW3 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -< 0.0900 < 0.160 < 0.103 < 0.0870
PW3 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -<< 0.160 < 0.103 < 0.0870
PW3 10/13/20 < 0.388 < 0.366 < 0.355 < 0.359 < 0.198 < 0.359 < 4.53 -<< 0.382 < 0.335 < 0.352
PW3 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 -<<< 0.820 < 0.560
PW3 10/7/21 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 -< 0.120 < 0.600 < 0.820 < 0.560
PW3 4/5/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 -<< 1.00 < 0.820 < 0.560
PW3 6/29/22 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 <25.6 <<<<
1 600 600 500 20 70 6,000 4,000 0.7 70 400 400
Gross Contamination Levels 5,000 260,000 84,500 85,500 20,000 70,000 6,000,000 4,000,000 700 70,000 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE - Not established.
6. "J" - Indicates an estimated value.EthanolAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal Xylenes1,3,5-Trimethylbenzene2L Standard
PW3 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
MTBEIPEChloroformAcetoneTetrachloroethylene1,2,4-Trimethylbenzene
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
PW4 5/26/2010 <0.11 <0.11 <0.11 <0.32 <0.12 <0.12 -0.48 J 0.17 J 0.18 J <0.10 <0.11
PW4 6/24/2013 <1 <5 <1 <3 <1 <1 -<5 <2.5 <1 <1 <1
PW4 3/20/2014 <1 <5 <1 <3 <1 <1 -<5 <2.5 <1 <1 <1
PW4 9/22/2014 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 -0.71 <0.0850 <0.0540 <0.103 <0.0870
PW4 2/25/2015 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 -0.71 <0.0850 <0.0540 <0.103 <0.0870
PW4 9/22/2015 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 10.9 <0.172 <0.0850 <0.0540 <0.103 <0.0870
PW4 12/17/2015 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 <0.172 <0.0850 <0.0540 <0.103 <0.0870
PW4 3/14/2016 <0.119 <0.0570 <0.0920 <0.298 <0.169 <0.0920 <0.352 0.52 <0.0850 <0.0540 <0.103 <0.0870
PW4 9/14/16 <0.500 <0.500 <0.500 <1.00 <1.00 <5.00 <<<<<<
PW4 3/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 0.79 <<<<
PW4 9/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 0.4 <0.12 <0.103 <0.0870
1 600 600 500 20 70 6,000 70 NE 0.7 400 400
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
5. NE - Not established.
6. "J" - Indicates an estimated value.
PW4 - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
TetrachloroethyleneAnalytical Method
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesMTBE2L Standard 1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIPEChloroformMethyl chlorideAcetone
6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
DOOMY PAINT PW 4/24/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 -0.31 <<<
PW15 9/14/17 <0.119 <0.0570 <0.0920 <0.180 <0.169 <0.0920 <0.352 -0.41 4.05 <<
PW15 4/5/18 <0.119 <0.0570 <0.0920 <0.180 0.48 <0.0920 5.97 -0.28 4.23 <0.103 <0.0870
PW15 10/8/18 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 6.91 -< 0.0900 2.58 < 0.103 < 0.0870
PW15 5/16/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -< 0.0900 2.59 < 0.103 < 0.0870
PW15 10/22/19 < 0.119 < 0.0570 < 0.0920 < 0.122 < 0.169 < 0.0920 < 0.352 -< 0.0900 5.24 < 0.103 < 0.0870
PW15 4/17/20 < 0.119 < 0.0570 < 0.0920 < 0.122 0.79 < 0.0920 < 0.352 -<2.99 < 0.103 < 0.0870
PW15 10/13/20 < 0.388 < 0.366 < 0.355 < 0.359 0.38 < 0.359 < 4.53 -<3.23 < 0.335 < 0.352
PW15 4/19/21 < 0.380 < 0.410 < 0.500 < 1.60 < 0.740 < 0.700 < 10.0 -<1.6 < 0.820 < 0.560
PW15 10/7/2021 < 0.130 < 0.410 < 0.500 < 1.60 0.23 < 0.200 < 10.0 -0.218 2.43 < 0.820 < 0.560
PW15 4/5/2022 < 0.130 < 0.410 < 0.500 < 1.60 < 0.220 < 0.200 < 10.0 -<1.7 < 0.820 < 0.560
PW15 6/29/2022 < 0.130 < 0.410 < 0.500 < 1.60 0.22 < 0.200 <34.4 <1.76 <<
1 600 600 500 20 70 6,000 4,000 0.7 70 400 400
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
2L Standard AcetoneChloroformTetrachloroethylene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneEthanolPW15 (DOOMY PAINT) - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
Contaminant of Concern
BenzeneTouleneEthylbenzeneTotal XylenesMTBEIPE
6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
Blue Café Pre 3/26/12 <1 <5 <1 <3 <1 <1 <1 <1
1 600 600 500 20 70 400 400
5,000 260,000 84,500 85,500 20,000 70,000 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
Contaminant of Concern
BenzeneTolueneEthylbenzeneTotal XylenesBLUE CAFÉ PRE - SUMMARY OF GROUNDWATER SAMPLING RESULTS
Incident Name: Four Brothers 208 Incident No.: 30576
Analytical Method
2L Standard
NCDWM Gross Contamination Levels 1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMTBEIPE
6200B6200B6200B6200B6200B6200B6200B6200BSample ID Date Collected
Blue Café Post 3/26/12 <1 <5 <1 <3 <1 <1 <1 <1
1 600 600 500 20 70 400 400
5,000 260,000 84,500 85,500 20,000 70,000 28,500 25,000
Notes:
1. All results in ug/L.
2. BOLD denotes a detection.
3. Shading denotes a 2L Standard violation.
4. < = denotes less than sample detection limit.
Incident Name: Four Brothers 208 Incident No.: 30576
BLUE CAFÉ POST - SUMMARY OF GROUNDWATER SAMPLING RESULTS
BenzeneTolueneEthylbenzeneTotal XylenesMTBEIPE1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneContaminant of Concern
Analytical Method
NCDWM Gross Contamination Levels
2L Standard

APPENDIX D

ANALYTICAL REPORT
Eurofins Pensacola
3355 McLemore Drive
Pensacola, FL 32514
Tel: [phone]
Laboratory Job ID: 400-224469-1
Client Project/Site: Four Brothers #208
For:
Terraquest Environmental Consultants, PC
100 E. Ruffin Street
Mebane, North Carolina 27302
Attn: Ryan Kerins
Authorized for release by:
8/22/2022 3:37:01 PM
Chad Bechtold, Project Manager
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI
requirements for accredited parameters, exceptions are noted in this report. This
report may not be reproduced except in full, and with written approval from the
laboratory. For questions please contact the Project Manager at the e-mail address or
telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
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Table of Contents
Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Laboratory Job ID: 400-224469-1
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Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
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Case Narrative
Client: Terraquest Environmental Consultants, PC Job ID: 400-224469-1
Project/Site: Four Brothers #208
Job ID: 400-224469-1
Laboratory: Eurofins Pensacola
Narrative
Job Narrative
400-224469-1
Receipt
The sample was received on 8/13/2022 8:30 AM. Unless otherwise noted below, the sample arrived in good condition, and, where
required, properly preserved and on ice. The temperature of the cooler at receipt time was 1.5°C
Air - GC VOA
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Eurofins PensacolaPage 3 of 15 8/22/2022
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Detection Summary
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Client Sample ID: SVE STACK Lab Sample ID: 400-224469-1
m-Xylene & p-Xylene
RL
1150 ppb v/v
MDL
230
Analyte Result Qualifier Unit Dil Fac D Method Prep Type
Total/NA1J272EPA-18
o-Xylene 1150 ppb v/v159 Total/NA1200JEPA-18
Xylenes, Total 1150 ppb v/v368 Total/NA1471JEPA-18
Eurofins Pensacola
This Detection Summary does not include radiochemical test results.
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Sample Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-224469-1
Project/Site: Four Brothers #208
Lab Sample ID Client Sample ID Matrix Collected Received
400-224469-1 SVE STACK Air - Tedlar Bag 08/11/22 11:25 08/13/22 08:30
Eurofins PensacolaPage 5 of 15 8/22/2022
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Client Sample Results
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Lab Sample ID: 400-224469-1Client Sample ID: SVE STACK
Matrix: Air - Tedlar BagDate Collected: 08/11/22 11:25
Date Received: 08/13/22 08:30
Method: EPA-18 - Volatile Organic Compounds
RL MDL
Benzene 125 U 313 125 ppb v/v 08/17/22 16:02 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1330 260 ppb v/v 08/17/22 16:02 1Toluene260U
230 124 ppb v/v 08/17/22 16:02 1Ethylbenzene124U
1150 230 ppb v/v 08/17/22 16:02 1m-Xylene & p-Xylene 272 J
1150 159 ppb v/v 08/17/22 16:02 1o-Xylene 200 J
1150 368 ppb v/v 08/17/22 16:02 1Xylenes, Total 471 J
1390 499 ppb v/v 08/17/22 16:02 1Methyl tert-butyl ether 499 U
24500 12200 ppb v/v 08/17/22 16:02 1Gasoline Range Organics
(GRO)-C6-C10
12200 U
a,a,a-Trifluorotoluene (fid)100 67-139 08/17/22 16:02 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)98 08/17/22 16:02 176-127
Eurofins Pensacola
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Definitions/Glossary
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Qualifiers
Air - GC VOA
Qualifier Description
J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value.
Qualifier
U Indicates the analyte was analyzed for but not detected.
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Pensacola
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Surrogate Summary
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Air - Tedlar Bag
Lab Sample ID Client Sample ID (67-139)(76-127)
TFT-F TFT-P
100 98400-224469-1
Percent Surrogate Recovery (Acceptance Limits)
SVE STACK
104 100LCS 400-589150/1001 Lab Control Sample
102 101MB 400-589150/2 Method Blank
Surrogate Legend
TFT-F = a,a,a-Trifluorotoluene (fid)
TFT-P = a,a,a-Trifluorotoluene (pid)
Eurofins Pensacola
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QC Association Summary
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Air - GC VOA
Analysis Batch: 589150
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Air - Tedlar Bag EPA-18400-224469-1 SVE STACK Total/NA
Air - Tedlar Bag EPA-18MB 400-589150/2 Method Blank Total/NA
Air - Tedlar Bag EPA-18LCS 400-589150/1001 Lab Control Sample Total/NA
Eurofins Pensacola
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QC Sample Results
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 400-589150/2
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 589150
RL MDL
Benzene 125 U 313 125 ppb v/v 08/17/22 11:43 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
260 U 2601330 ppb v/v 08/17/22 11:43 1Toluene
124 U 124230 ppb v/v 08/17/22 11:43 1Ethylbenzene
230 U 2301150 ppb v/v 08/17/22 11:43 1m-Xylene & p-Xylene
159 U 1591150 ppb v/v 08/17/22 11:43 1o-Xylene
368 U 3681150 ppb v/v 08/17/22 11:43 1Xylenes, Total
499 U 4991390 ppb v/v 08/17/22 11:43 1Methyl tert-butyl ether
12200 U 1220024500 ppb v/v 08/17/22 11:43 1Gasoline Range Organics
(GRO)-C6-C10
a,a,a-Trifluorotoluene (fid)102 67-139 08/17/22 11:43 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
101 08/17/22 11:43 1a,a,a-Trifluorotoluene (pid)76-127
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-589150/1001
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 589150
Benzene 15700 15790 ppb v/v 101 85 -115
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
Toluene 13300 13350 ppb v/v 101 85 -115
Ethylbenzene 11500 12210 ppb v/v 106 85 -115
m-Xylene & p-Xylene 23000 24570 ppb v/v 107 85 -115
o-Xylene 11500 12000 ppb v/v 104 85 -115
Xylenes, Total 34500 36570 ppb v/v 106 85 -115
Methyl tert-butyl ether 27700 27980 ppb v/v 101 85 -115
Gasoline Range Organics
(GRO)-C6-C10
196000 197600 ppb v/v 101 85 -115
a,a,a-Trifluorotoluene (fid)67 -139
Surrogate
104
LCS LCS
Qualifier Limits%Recovery
100a,a,a-Trifluorotoluene (pid)76 -127
Eurofins Pensacola
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Lab Chronicle
Client: Terraquest Environmental Consultants, PC Job ID: 400-224469-1
Project/Site: Four Brothers #208
Client Sample ID: SVE STACK Lab Sample ID: 400-224469-1
Matrix: Air - Tedlar BagDate Collected: 08/11/22 11:25
Date Received: 08/13/22 08:30
Analysis EPA-18 SRK08/17/22 16:021 EET PEN589150
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-589150/2
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SRK08/17/22 11:431 EET PEN589150
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-589150/1001
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SRK08/17/22 10:121 EET PEN589150
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Method Summary
Job ID: 400-224469-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method Method Description LaboratoryProtocol
EPAEPA-18 Volatile Organic Compounds EET PEN
Protocol References:
EPA = US Environmental Protection Agency
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
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Accreditation/Certification Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-224469-1
Project/Site: Four Brothers #208
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
EPA-18 Air - Tedlar Bag Benzene
EPA-18 Air - Tedlar Bag Ethylbenzene
EPA-18 Air - Tedlar Bag Gasoline Range Organics (GRO)-C6-C10
EPA-18 Air - Tedlar Bag Methyl tert-butyl ether
EPA-18 Air - Tedlar Bag m-Xylene & p-Xylene
EPA-18 Air - Tedlar Bag o-Xylene
EPA-18 Air - Tedlar Bag Toluene
EPA-18 Air - Tedlar Bag Xylenes, Total
Eurofins Pensacola
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ANALYTICAL REPORT
Eurofins Pensacola
3355 McLemore Drive
Pensacola, FL 32514
Tel: [phone]
Laboratory Job ID: 400-226089-1
Client Project/Site: Four Brothers #208
For:
Terraquest Environmental Consultants, PC
100 E. Ruffin Street
Mebane, North Carolina 27302
Attn: Ryan Kerins
Authorized for release by:
9/26/2022 8:52:42 AM
Chad Bechtold, Project Manager
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI
requirements for accredited parameters, exceptions are noted in this report. This
report may not be reproduced except in full, and with written approval from the
laboratory. For questions please contact the Project Manager at the e-mail address or
telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
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Table of Contents
Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Laboratory Job ID: 400-226089-1
Page 2 of 16 Eurofins Pensacola9/26/2022
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
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Case Narrative
Client: Terraquest Environmental Consultants, PC Job ID: 400-226089-1
Project/Site: Four Brothers #208
Job ID: 400-226089-1
Laboratory: Eurofins Pensacola
Narrative
Job Narrative
400-226089-1
Receipt
The sample was received on 9/19/2022 9:18 AM. Unless otherwise noted below, the sample arrived in good condition. The temperature
of the cooler at receipt time was 20.8°C. Thermal preservation is not performed for air samples.
Air - GC VOA
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Eurofins PensacolaPage 3 of 16 9/26/2022
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Detection Summary
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Client Sample ID: SVE STACK Lab Sample ID: 400-226089-1
No Detections.
Eurofins Pensacola
This Detection Summary does not include radiochemical test results.
Page 4 of 16 9/26/2022
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Sample Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-226089-1
Project/Site: Four Brothers #208
Lab Sample ID Client Sample ID Matrix Collected Received
400-226089-1 SVE STACK Air - Tedlar Bag 09/14/22 13:06 09/19/22 09:18
Eurofins PensacolaPage 5 of 16 9/26/2022
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Client Sample Results
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Lab Sample ID: 400-226089-1Client Sample ID: SVE STACK
Matrix: Air - Tedlar BagDate Collected: 09/14/22 13:06
Date Received: 09/19/22 09:18
Method: EPA-18 - Volatile Organic Compounds
RL MDL
Benzene 125 U 313 125 ppb v/v 09/20/22 13:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1330 260 ppb v/v 09/20/22 13:06 1Toluene260U
230 124 ppb v/v 09/20/22 13:06 1Ethylbenzene124U
1150 230 ppb v/v 09/20/22 13:06 1m-Xylene & p-Xylene 230 U
1150 159 ppb v/v 09/20/22 13:06 1o-Xylene 159 U
1150 368 ppb v/v 09/20/22 13:06 1Xylenes, Total 368 U
1390 499 ppb v/v 09/20/22 13:06 1Methyl tert-butyl ether 499 U
24500 12200 ppb v/v 09/20/22 13:06 1Gasoline Range Organics
(GRO)-C6-C10
12200 U
a,a,a-Trifluorotoluene (fid)97 67-139 09/20/22 13:06 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)95 09/20/22 13:06 176-127
Eurofins Pensacola
Page 6 of 16 9/26/2022
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Definitions/Glossary
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Qualifiers
Air - GC VOA
Qualifier Description
U Indicates the analyte was analyzed for but not detected.
Qualifier
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Pensacola
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Surrogate Summary
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Air - Tedlar Bag
Lab Sample ID Client Sample ID (67-139)(76-127)
TFT-F TFT-P
97 95400-226089-1
Percent Surrogate Recovery (Acceptance Limits)
SVE STACK
98 94400-226089-1 MS SVE STACK
97 95400-226089-1 MSD SVE STACK
97 93LCS 400-593189/1001 Lab Control Sample
96 95MB 400-593189/2 Method Blank
Surrogate Legend
TFT-F = a,a,a-Trifluorotoluene (fid)
TFT-P = a,a,a-Trifluorotoluene (pid)
Eurofins Pensacola
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QC Association Summary
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Air - GC VOA
Analysis Batch: 593189
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Air - Tedlar Bag EPA-18400-226089-1 SVE STACK Total/NA
Air - Tedlar Bag EPA-18MB 400-593189/2 Method Blank Total/NA
Air - Tedlar Bag EPA-18LCS 400-593189/1001 Lab Control Sample Total/NA
Air - Tedlar Bag EPA-18400-226089-1 MS SVE STACK Total/NA
Air - Tedlar Bag EPA-18400-226089-1 MSD SVE STACK Total/NA
Eurofins Pensacola
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QC Sample Results
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 400-593189/2
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 593189
RL MDL
Benzene 125 U 313 125 ppb v/v 09/20/22 12:02 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
260 U 2601330 ppb v/v 09/20/22 12:02 1Toluene
124 U 124230 ppb v/v 09/20/22 12:02 1Ethylbenzene
230 U 2301150 ppb v/v 09/20/22 12:02 1m-Xylene & p-Xylene
159 U 1591150 ppb v/v 09/20/22 12:02 1o-Xylene
368 U 3681150 ppb v/v 09/20/22 12:02 1Xylenes, Total
499 U 4991390 ppb v/v 09/20/22 12:02 1Methyl tert-butyl ether
12200 U 1220024500 ppb v/v 09/20/22 12:02 1Gasoline Range Organics
(GRO)-C6-C10
a,a,a-Trifluorotoluene (fid)96 67-139 09/20/22 12:02 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
95 09/20/22 12:02 1a,a,a-Trifluorotoluene (pid)76-127
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-593189/1001
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 593189
Benzene 15700 14640 ppb v/v 94 85 -115
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
Toluene 13300 12280 ppb v/v 93 85 -115
Ethylbenzene 11500 11220 ppb v/v 97 85 -115
m-Xylene & p-Xylene 23000 22450 ppb v/v 97 85 -115
o-Xylene 11500 10970 ppb v/v 95 85 -115
Xylenes, Total 34500 33430 ppb v/v 97 85 -115
Methyl tert-butyl ether 27700 23700 ppb v/v 85 85 -115
Gasoline Range Organics
(GRO)-C6-C10
196000 176600 ppb v/v 90 85 -115
a,a,a-Trifluorotoluene (fid)67 -139
Surrogate
97
LCS LCS
Qualifier Limits%Recovery
93a,a,a-Trifluorotoluene (pid)76 -127
Client Sample ID: SVE STACKLab Sample ID: 400-226089-1 MS
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 593189
Benzene 125 U 15700 14690 ppb v/v 94 75 -119
Analyte
MS MS
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits
Toluene 260 U 13300 12200 ppb v/v 92 69 -127
Ethylbenzene 124 U 11500 11230 ppb v/v 98 77 -120
m-Xylene & p-Xylene 230 U 23000 22520 ppb v/v 98 77 -121
o-Xylene 159 U 11500 10960 ppb v/v 95 75 -118
Xylenes, Total 368 U 34500 33480 ppb v/v 97 76 -120
Methyl tert-butyl ether 499 U 27700 27870 ppb v/v 100 68 -130
Gasoline Range Organics
(GRO)-C6-C10
12200 U 196000 182500 ppb v/v 93 68 -128
Eurofins Pensacola
Page 10 of 16 9/26/2022
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QC Sample Results
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds (Continued)
Client Sample ID: SVE STACKLab Sample ID: 400-226089-1 MS
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 593189
a,a,a-Trifluorotoluene (fid)67 -139
Surrogate
98
MS MS
Qualifier Limits%Recovery
94a,a,a-Trifluorotoluene (pid)76 -127
Client Sample ID: SVE STACKLab Sample ID: 400-226089-1 MSD
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 593189
Benzene 125 U 15700 14730 ppb v/v 94 75 -119 0 9
Analyte
MSD MSD
DUnitResultQualifier %Rec
Spike
Added
Sample
Result
Sample
Qualifier
%Rec
Limits LimitRPD
RPD
Toluene 260 U 13300 12310 ppb v/v 93 69 -127 1 12
Ethylbenzene 124 U 11500 11090 ppb v/v 96 77 -120 1 9
m-Xylene & p-Xylene 230 U 23000 22160 ppb v/v 96 77 -121 2 9
o-Xylene 159 U 11500 10760 ppb v/v 93 75 -118 2 10
Xylenes, Total 368 U 34500 32920 ppb v/v 95 76 -120 2 9
Methyl tert-butyl ether 499 U 27700 28120 ppb v/v 101 68 -130 1 22
Gasoline Range Organics
(GRO)-C6-C10
12200 U 196000 176900 ppb v/v 90 68 -128 3 14
a,a,a-Trifluorotoluene (fid)67 -139
Surrogate
97
MSD MSD
Qualifier Limits%Recovery
95a,a,a-Trifluorotoluene (pid)76 -127
Eurofins Pensacola
Page 11 of 16 9/26/2022
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Lab Chronicle
Client: Terraquest Environmental Consultants, PC Job ID: 400-226089-1
Project/Site: Four Brothers #208
Client Sample ID: SVE STACK Lab Sample ID: 400-226089-1
Matrix: Air - Tedlar BagDate Collected: 09/14/22 13:06
Date Received: 09/19/22 09:18
Analysis EPA-18 SAB09/20/22 13:061 EET PEN593189
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-593189/2
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SAB09/20/22 12:021 EET PEN593189
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-593189/1001
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SAB09/20/22 10:071 EET PEN593189
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: SVE STACK Lab Sample ID: 400-226089-1 MS
Matrix: Air - Tedlar BagDate Collected: 09/14/22 13:06
Date Received: 09/19/22 09:18
Analysis EPA-18 SAB09/20/22 14:381 EET PEN593189
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: SVE STACK Lab Sample ID: 400-226089-1 MSD
Matrix: Air - Tedlar BagDate Collected: 09/14/22 13:06
Date Received: 09/19/22 09:18
Analysis EPA-18 SAB09/20/22 15:431 EET PEN593189
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
Page 12 of 16 9/26/2022
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Method Summary
Job ID: 400-226089-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method Method Description LaboratoryProtocol
EPAEPA-18 Volatile Organic Compounds EET PEN
Protocol References:
EPA = US Environmental Protection Agency
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
Page 13 of 16 9/26/2022
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Accreditation/Certification Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-226089-1
Project/Site: Four Brothers #208
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
EPA-18 Air - Tedlar Bag Benzene
EPA-18 Air - Tedlar Bag Ethylbenzene
EPA-18 Air - Tedlar Bag Gasoline Range Organics (GRO)-C6-C10
EPA-18 Air - Tedlar Bag Methyl tert-butyl ether
EPA-18 Air - Tedlar Bag m-Xylene & p-Xylene
EPA-18 Air - Tedlar Bag o-Xylene
EPA-18 Air - Tedlar Bag Toluene
EPA-18 Air - Tedlar Bag Xylenes, Total
Eurofins Pensacola
Page 14 of 16 9/26/2022
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Page 15 of 16 9/26/2022
1234567
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Login Sample Receipt Checklist
Client: Terraquest Environmental Consultants, PC Job Number: 400-226089-1
Login Number: 226089
Question Answer Comment
Creator: Roberts, Alexis J
List Source: Eurofins Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
N/AThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
N/ASamples were received on ice.Thermal preservation not required.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.20.8°C IR8
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
TrueContainers are not broken or leaking.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
N/AContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins Pensacola
Page 16 of 16 9/26/2022
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Login Sample Receipt Checklist
Client: Terraquest Environmental Consultants, PC Job Number: 400-224469-1
Login Number: 224469
Question Answer Comment
Creator: Roberts, Alexis J
List Source: Eurofins Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
N/AThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
N/ASamples were received on ice.Thermal preservation not required.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.1.5°C IR9
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
TrueContainers are not broken or leaking.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
N/AContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins Pensacola
Page 15 of 15 8/22/2022
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ANALYTICAL REPORT
Eurofins Pensacola
3355 McLemore Drive
Pensacola, FL 32514
Tel: [phone]
Laboratory Job ID: 400-226970-1
Client Project/Site: Four Brothers #208
For:
Terraquest Environmental Consultants, PC
100 E. Ruffin Street
Mebane, North Carolina 27302
Attn: Ryan Kerins
Authorized for release by:
10/13/2022 9:37:18 AM
Chad Bechtold, Project Manager
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI
requirements for accredited parameters, exceptions are noted in this report. This
report may not be reproduced except in full, and with written approval from the
laboratory. For questions please contact the Project Manager at the e-mail address or
telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic
signature is intended to be the legally binding equivalent of a traditionally handwritten
signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
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Table of Contents
Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Laboratory Job ID: 400-226970-1
Page 2 of 15 Eurofins Pensacola10/13/2022
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
QC Association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
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Case Narrative
Client: Terraquest Environmental Consultants, PC Job ID: 400-226970-1
Project/Site: Four Brothers #208
Job ID: 400-226970-1
Laboratory: Eurofins Pensacola
Narrative
Job Narrative
400-226970-1
Receipt
The sample was received on 10/7/2022 9:24 AM. Unless otherwise noted below, the sample arrived in good condition, and, where
required, properly preserved and on ice. The temperature of the cooler at receipt time was 20.2°C
Air - GC VOA
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Eurofins PensacolaPage 3 of 15 10/13/2022
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Detection Summary
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Client Sample ID: SVE Stack Lab Sample ID: 400-226970-1
No Detections.
Eurofins Pensacola
This Detection Summary does not include radiochemical test results.
Page 4 of 15 10/13/2022
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Sample Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-226970-1
Project/Site: Four Brothers #208
Lab Sample ID Client Sample ID Matrix Collected Received
400-226970-1 SVE Stack Air - Tedlar Bag 10/06/22 12:30 10/07/22 09:24
Eurofins PensacolaPage 5 of 15 10/13/2022
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Client Sample Results
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Lab Sample ID: 400-226970-1Client Sample ID: SVE Stack
Matrix: Air - Tedlar BagDate Collected: 10/06/22 12:30
Date Received: 10/07/22 09:24
Method: EPA-18 - Volatile Organic Compounds
RL MDL
125 U 313 125 ppb v/v 10/11/22 19:13 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
Benzene
1330 260 ppb v/v 10/11/22 19:13 1260UToluene
230 124 ppb v/v 10/11/22 19:13 1124UEthylbenzene
1150 230 ppb v/v 10/11/22 19:13 1230Um-Xylene & p-Xylene
1150 159 ppb v/v 10/11/22 19:13 1159Uo-Xylene
1150 368 ppb v/v 10/11/22 19:13 1368UXylenes, Total
1390 499 ppb v/v 10/11/22 19:13 1499UMethyl tert-butyl ether
24500 12200 ppb v/v 10/11/22 19:13 112200UGasoline Range Organics
(GRO)-C6-C10
a,a,a-Trifluorotoluene (fid)98 67-139 10/11/22 19:13 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
a,a,a-Trifluorotoluene (pid)96 10/11/22 19:13 176-127
Eurofins Pensacola
Page 6 of 15 10/13/2022
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Definitions/Glossary
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Qualifiers
Air - GC VOA
Qualifier Description
U Indicates the analyte was analyzed for but not detected.
Qualifier
Glossary
These commonly used abbreviations may or may not be present in this report.
¤Listed under the "D" column to designate that the result is reported on a dry weight basis
Abbreviation
%R Percent Recovery
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Pensacola
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Surrogate Summary
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Air - Tedlar Bag
Lab Sample ID Client Sample ID (67-139)(76-127)
TFT-F TFT-P
98 96400-226970-1
Percent Surrogate Recovery (Acceptance Limits)
SVE Stack
96 92LCS 400-595790/1001 Lab Control Sample
91 92MB 400-595790/2 Method Blank
Surrogate Legend
TFT-F = a,a,a-Trifluorotoluene (fid)
TFT-P = a,a,a-Trifluorotoluene (pid)
Eurofins Pensacola
Page 8 of 15 10/13/2022
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QC Association Summary
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Air - GC VOA
Analysis Batch: 595790
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Air - Tedlar Bag EPA-18400-226970-1 SVE Stack Total/NA
Air - Tedlar Bag EPA-18MB 400-595790/2 Method Blank Total/NA
Air - Tedlar Bag EPA-18LCS 400-595790/1001 Lab Control Sample Total/NA
Eurofins Pensacola
Page 9 of 15 10/13/2022
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QC Sample Results
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method: EPA-18 - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 400-595790/2
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 595790
RL MDL
Benzene 125 U 313 125 ppb v/v 10/11/22 10:49 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
260 U 2601330 ppb v/v 10/11/22 10:49 1Toluene
124 U 124230 ppb v/v 10/11/22 10:49 1Ethylbenzene
230 U 2301150 ppb v/v 10/11/22 10:49 1m-Xylene & p-Xylene
159 U 1591150 ppb v/v 10/11/22 10:49 1o-Xylene
368 U 3681150 ppb v/v 10/11/22 10:49 1Xylenes, Total
499 U 4991390 ppb v/v 10/11/22 10:49 1Methyl tert-butyl ether
12200 U 1220024500 ppb v/v 10/11/22 10:49 1Gasoline Range Organics
(GRO)-C6-C10
a,a,a-Trifluorotoluene (fid)91 67-139 10/11/22 10:49 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
92 10/11/22 10:49 1a,a,a-Trifluorotoluene (pid)76-127
Client Sample ID: Lab Control SampleLab Sample ID: LCS 400-595790/1001
Matrix: Air - Tedlar Bag Prep Type: Total/NA
Analysis Batch: 595790
Benzene 15700 15190 ppb v/v 97 85-115
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec
Limits
Toluene 13300 12500 ppb v/v 94 85-115
Ethylbenzene 11500 11340 ppb v/v 98 85-115
m-Xylene & p-Xylene 23000 22780 ppb v/v 99 85-115
o-Xylene 11500 11050 ppb v/v 96 85-115
Xylenes, Total 34500 33830 ppb v/v 98 85-115
Methyl tert-butyl ether 27700 30270 ppb v/v 109 85-115
Gasoline Range Organics
(GRO)-C6-C10
196000 185200 ppb v/v 95 85-115
a,a,a-Trifluorotoluene (fid)67 -139
Surrogate
96
LCS LCS
Qualifier Limits%Recovery
92a,a,a-Trifluorotoluene (pid)76 -127
Eurofins Pensacola
Page 10 of 15 10/13/2022
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Lab Chronicle
Client: Terraquest Environmental Consultants, PC Job ID: 400-226970-1
Project/Site: Four Brothers #208
Client Sample ID: SVE Stack Lab Sample ID: 400-226970-1
Matrix: Air - Tedlar BagDate Collected: 10/06/22 12:30
Date Received: 10/07/22 09:24
Analysis EPA-18 SAB10/11/22 19:131 EET PEN595790
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Method Blank Lab Sample ID: MB 400-595790/2
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SAB10/11/22 10:491 EET PEN595790
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Client Sample ID: Lab Control Sample Lab Sample ID: LCS 400-595790/1001
Matrix: Air - Tedlar BagDate Collected: N/A
Date Received: N/A
Analysis EPA-18 SAB10/11/22 09:451 EET PEN595790
Type
Batch
Method
Batch
Prep Type LabAnalystRun
Prepared
or Analyzed
Initial
Amount Amount
Final Batch
NumberFactor
Dil
Total/NA 5 mL 5 mL
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
Page 11 of 15 10/13/2022
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Method Summary
Job ID: 400-226970-1Client: Terraquest Environmental Consultants, PC
Project/Site: Four Brothers #208
Method Method Description LaboratoryProtocol
EPAEPA-18 Volatile Organic Compounds EET PEN
Protocol References:
EPA = US Environmental Protection Agency
Laboratory References:
EET PEN = Eurofins Pensacola, 3355 McLemore Drive, Pensacola, FL 32514, TEL [phone]
Eurofins Pensacola
Page 12 of 15 10/13/2022
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Accreditation/Certification Summary
Client: Terraquest Environmental Consultants, PC Job ID: 400-226970-1
Project/Site: Four Brothers #208
Laboratory: Eurofins Pensacola
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)State 314 12-31-22
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
EPA-18 Air - Tedlar Bag Benzene
EPA-18 Air - Tedlar Bag Ethylbenzene
EPA-18 Air - Tedlar Bag Gasoline Range Organics (GRO)-C6-C10
EPA-18 Air - Tedlar Bag Methyl tert-butyl ether
EPA-18 Air - Tedlar Bag m-Xylene & p-Xylene
EPA-18 Air - Tedlar Bag o-Xylene
EPA-18 Air - Tedlar Bag Toluene
EPA-18 Air - Tedlar Bag Xylenes, Total
Eurofins Pensacola
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Login Sample Receipt Checklist
Client: Terraquest Environmental Consultants, PC Job Number: 400-226970-1
Login Number: 226970
Question Answer Comment
Creator: Perez, Trina M
List Source: Eurofins Pensacola
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
TrueThe cooler's custody seal, if present, is intact.
N/ASample custody seals, if present, are intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
N/ASamples were received on ice.Thermal preservation not required.
TrueCooler Temperature is acceptable.
TrueCooler Temperature is recorded.20.2°C IR-9
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
TrueIs the Field Sampler's name present on COC?
TrueThere are no discrepancies between the containers received and the COC.
TrueSamples are received within Holding Time (excluding tests with immediate
HTs)
TrueSample containers have legible labels.
TrueContainers are not broken or leaking.
TrueSample collection date/times are provided.
TrueAppropriate sample containers are used.
TrueSample bottles are completely filled.
N/ASample Preservation Verified.
TrueThere is sufficient vol. for all requested analyses, incl. any requested
MS/MSDs
N/AContainers requiring zero headspace have no headspace or bubble is
<6mm (1/4").
TrueMultiphasic samples are not present.
TrueSamples do not require splitting or compositing.
N/AResidual Chlorine Checked.
Eurofins Pensacola
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APPENDIX E