SIXTH FIVE-YEAR REVIEW REPORT FOR
SYNTEX FACILITY SUPERFUND SITE
LAWRENCE COUNTY, MISSOURI
*#
F»R01-V
Prepared by
U.S. Environmental Protection Agency
Region 7
Lenexa, Kansas
Digitally signed by ROBERT
ROBERTJURGENS JURGENS
Date: 2022.09.26 15:34:50 -05'00'
Robert D. Jurgens, Director
Superfund and Emergency Management Division
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Table of Contents
LIST 01 ABBREVIATIONS & ACRONYMS iii
I. INTRODUCTION 1
FIVE-YEAR REVIEW SUMMARY FORM 3
II. RESPONSE ACTION SUMMARY 3
Basis for Taking Action 3
Response Actions 5
Status of Implementation 7
IC Summary 12
Systems Operations/Operation & Maintenance 14
III. PROGRESS SINCE THE LAST REVIEW 15
IV. FIVE-YEAR REVIEW PROCESS 20
Community Notification, Involvement & Site Interviews 20
Data Review 21
Site Inspection 25
V. TECHNICAL ASSESSMENT 26
QUESTION A: Is the remedy functioning as intended by the decision documents? 26
QUESTION B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action
objectives (RAOs) used at the time of the remedy selection still valid? 30
QUESTION C: Has any other information come to light that could call into question the
protectiveness of the remedy? 31
VI. ISSUES/RECOMMENDATIONS 31
OTHER FINDINGS 33
VII. PROTECTIVENESS STATEMENT 33
VIII. NEXT REVIEW 34
APPENDICES
Appendix A - Figures
Appendix B - Tables of Analytical Results
Appendix C - List of References
Appendix D - Site Inspection Checklist
Appendix E - Site Inspection Photos
Appendix F - Environmental Covenants
Appendix G - Hydrology, Geology, and Hydrogeology
Appendix H - Community Interviews
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LIST OF ABBREVIATIONS & ACRONYMS
2,4,5-T
2,4,5-Trichlorophenoxy-acetic acid
AOC
Administrative Order on Consent
ATSDR
Agency for Toxic Substances and Disease Registry
AUL
Activity and Use Limitation
BCP
BCP Ingredients, Inc.
bgs
below ground surface
BRA
Baseline Risk Assessment
CAO
Consent Agreement and Order
CDC
Centers for Disease Control and Prevention
CERCLA
Comprehensive Environmental Response, Compensation, and Liability Act
CSM
Conceptual Site Model
DLC
Dioxin-Like Compound
DPT
Direct-Push Technology
DU
Decision Unit
EC
Environmental Covenant
EPA
U.S. Environmental Protection Agency
EPC
Exposure Point Concentration
EW
Environmental Works, Inc.
Foth
Foth Infrastructure and Environment, LLC
ft
feet
FYR
Five-Year Review
HCP
hexachl orophene
IC
Institutional Control
kg
kilogram (103 gram)
MCL
Maximum Contaminant Level
MoDNR
Missouri Department of Natural Resources
ng
nanogram (10"9 gram)
NEPACCO
Northeastern Pharmaceutical and Chemical Company
NPL
National Priorities List
OCDD
Octachlorodibenzo-p-dioxin
O&M
Operation and Maintenance
OU
Operable Unit
Pg
picogram (10"12 gram)
ppb
parts per billion
ppt
parts per trillion
ppq
parts per quadrillion
PQL
Practical Quantitation Limit
PQLG
Practical Quantitation Limit Goal
PRP
Potentially Responsible Party
RAO
Remedial Action Objective
RBC
Risk-Based Concentration
RCRA
Resource Conservation and Recovery Act
RfD
Reference Dose
RML
Removal Management Level
ROD
Record of Decision
RSL
Regional Screening Level
SDU
Super Decision Unit
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SLERA
Screening Level Ecological Risk Assessment
SVOC
Semi-volatile Organic Compound
Syntex
Syntex Agribusiness, Inc.
TBC
To be considered
TCDD
2,3,7,8-Tetrachlorodibenzo-p-dioxin
TCP
2,4,5-Trichlorophenol
TEA
Toxilogical and Environmental Associates, Inc
TEF
Toxic Equivalence Factor
TEQ
Toxicity Equivalence
Hg
microgram (10"6 gram)
UU/UE
Unlimited use and unrestricted exposure
VOC
Volatile Organic Compound
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I. INTRODUCTION
The purpose of a Five-Year Review (FYR) is to evaluate the implementation and performance of a
remedy to determine whether the remedy is and will continue to be protective of human health and the
environment. The methods, findings, and conclusions of reviews are documented in FYR reports such as
this one. In addition, FYR reports identify issues found during the review, if any, and document
recommendations to address them.
The U.S. Environmental Protection Agency is preparing this FYR pursuant to the Comprehensive
Environmental Response, Compensation, and Liability Act (CERCLA) Section 121, consistent with the
National Oil and Hazardous Substances Pollution Contingency Plan (40 CFR Section 300.430(f)(4)(ii))
and considering EPA policy.
This is the sixth FYR for the Syntex Facility Superfund site (Site). The triggering action for this
statutory review is the completion date of the previous FYR. The FYR has been prepared because
hazardous substances, pollutants, or contaminants remain at the Site above levels that allow for
unlimited use and unrestricted exposure (UU/UE).
The Site consists of three Operable Units (OUs), two of which will be addressed in this FYR: OU 1
addresses dioxin-contaminated soils and equipment, and OU 2 addresses groundwater. Recent
investigations have detected high concentrations of 1,4-dioxane in the groundwater. In January 2022, a
new OU, OU 3, was assigned as the source area soils and groundwater. The primary contaminant of
concern for OU 3 is currently 1,4-dioxane; however, other contaminants may be identified during the
upcoming site characterization activities. To date, there is no Record of Decision on OU 3; therefore, it
is not included in this FYR.
The Site FYR was led by Brian Zurbuchen, EPA Remedial Project Manager. The Site FYR team
members included Jessica Kidwell, EPA Hydrogeologist; Kelly Schumacher, EPA Human Health Risk
Assessor; Venessa Madden, EPA Ecological Risk Assessor; Pamela Houston, EPA Community
Involvement Coordinator; Steven Sanders, EPA Attorney-Advisor and Mikayla Morris, Missouri
Department of Natural Resources (MoDNR) Project Manager. Upon initiation of the FYR, the EPA
notified Syntex Agribusiness, Inc (Syntex), the Potentially Responsible Party (PRP) for OU 1 and OU 2
of the Site. The review began on July 15, 2021.
Site Background
The Site covers approximately 180 acres and is located in Verona, Missouri (Appendix A, Figure 1).
The Spring River flows northward through the Site, dividing it into two areas - the approximately 100-
acre East Area and the 80-acre West Area. The East Area is within the floodplain of the Spring River
and includes buildings and infrastructure associated with the former and current manufacturing facilities.
The West Area is mostly wooded, rolling upland terrain. The Site is bordered to the east by the city of
Verona, which has a 2020 census population of 507 (U.S. Census Bureau, 2022). The Site is bordered to
the north, south, and west by forested and agricultural land.
Before industrial operations, the Site was used for agricultural and recreational purposes. In the 1960s,
Hoffman-Taff Inc. owned and operated the facility on the Site. During the period May 1968 to February
1969, Hoffman-Taff produced 2,4,5-trichlorophenoxyacetic acid (also known as 2,4,5-T) for the U.S.
Army. 2,4,5-T is one component of the defoliant commonly referred to as Agent Orange. Between 1969
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and 1972, Northeastern Pharmaceutical and Chemical Company (NEPACCO) leased a portion of the
facility to produce hexachlorophene (HCP). Syntex purchased the facility from Hoffman-Taff in
December 1969 and allowed NEPACCO's lease to remain in effect.
The production of 2,4,5-T and HCP both involve the intermediate production of 2,4,5-trichlorophenol
(TCP), during which the compound 2,3,7,8-tetrachlorodibenzo-p-dioxin1, was created as an unwanted
byproduct. To meet U.S. Food and Drug Administration (FDA) restrictions on dioxin concentrations, the
HCP was processed to remove dioxin. In the course of purifying the HCP, still bottom wastes were
created, which contained dioxin. Dioxin, TCP and HCP are categorized as 'listed' hazardous wastes
under the Resource Conservation and Recovery Act (RCRA) and as hazardous substances under
CERCLA. Chemical manufacturing wastes were disposed of in several areas at the facility,
contaminating the soil and groundwater with dioxin, semi-volatile organic compounds (SVOCs) and
volatile organic compounds (VOCs). Fish and sediment in the downstream Spring River were also
contaminated.
In 1996, Syntex sold the East Area of the Site to DuCoa, L.P. In 2001, DuCoa, L.P. sold the East Area to
BCP Ingredients, Inc. (BCP), which is the current owner of the East Area and operator of the facility.
BCP currently manufactures feed-grade choline chloride products and repackages ethylene oxide at the
facility. The West Area is unused and remains under Syntex ownership. Land use on the Site is
restricted, as detailed below, and not expected to change. The uses of surrounding land are not expected
to change in the foreseeable future.
Refer to Appendix G for information on the hydrology, geology and hydrogeology of the Site.
1 2,3,7,8-tetrachlorodibenzo-p-dioxin is sometimes referred to as 2,3,7,8-TCDD, TCDD, or simply dioxin. These terms are
used interchangeably in this FYR.
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FIVE-YEAR REVIEW SUMMARY FORM
SITE IDENTIFICATION
Site Name: Syntex Facility site
EPA ID:
MOD007452154
Region: 7
State: MO
City/County: Verona/Lawrence
NPL Status: Final
Multiple OUs?
Yes
Has the site achieved construction completion?
Yes
Lead agency: EPA
Author name (Federal or State Project Manager): Brian Zurbuchen
Author affiliation: US EPA, Region 7
Review period: 7/15/2021 - 9/15/2022
Date of site inspection: 10/5/2021
Type of review: Statutory
Review number: 6
Triggering action date: 9/28/2017
Due date (fiveyears after triggering action date): 9/28/2022
II. RESPONSE ACTION SUMMARY
Basis for Taking Action
The EPA added the Site to the Superfund program's National Priorities List (NPL) in September 1983.
The EPA and Syntex entered into a Consent Agreement and Order (1983 CAO) in September 1983,
pursuant to Section 106 of CERCLA, 42 U.S.C. § 9606, and Section 3013 of RCRA, 42 U.S.C. § 6934.
Among other actions, the 1983 CAO required Syntex to plan and conduct site characterization activities
to define the nature and extent of contamination and to develop and evaluate a range of alternatives to
abate the actual or threatened release of the contaminants from the facility. In addition, the 1983 CAO
required Syntex to develop and conduct fish and sediment sampling in the Spring River downstream of
the facility.
Between 1983 and 1988, Syntex conducted site investigations in accordance with the 1983 CAO. In
1988, the EPA divided the Site into two separate operable units (OUs). The contaminated soils and
equipment were addressed under OU 1, while the groundwater contamination was addressed by OU 2.
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OU 1 Soils and Equipment
Several areas were delineated within the Site based on historical activities and soil sampling results:
Slough Area, Lagoon Area, Spill Area, Irrigation Area, Burn Area, and Trench Area (Appendix A,
Figure 2). The remainder of the East Area was defined as the Grid Area. Surface and subsurface
sampling of the Burn, Irrigation, and Lagoon Areas found dioxin concentrations ranging from non-
detect up to 27 parts per billion (ppb), 29 ppb, and 1,170 ppb, respectively. None of the surface or
subsurface samples from the Slough, Spill, or Grid Areas exceeded 20 ppb. In the Trench Area,
subsurface soil sampling found dioxin ranging from non-detect up to 18 ppb in perimeter boring
locations around the trenches and up to 69 ppb within the trenches themselves. Angle borings beneath
the trenches were generally non-detect. Surface soils in the Burn, Irrigation, and Lagoon Areas at the
Site were determined to be contaminated with dioxin above health-based levels for an industrial land use
scenario. Potential human exposure pathways to dioxin-contaminated soils included continued long-term
direct contact with or ingestion of soils and inhalation of dioxin-contaminated airborne particulates. In
addition, dioxin contamination was detected on equipment formerly used at the Site that exceeded a
level of concern for protection of human health. Hazardous substances disposed in the Trench Area
posed a potential risk to human health and the environment if not properly managed.
In addition to dioxin, other organic and inorganic contaminants were detected in soil and groundwater.
However, the EPA's Record of Decision for OU 1 (1988 ROD) stated that the primary contaminant of
concern at the Site was 2,3,7,8-TCDD (dioxin) (EPA, 1988a). The 1988 ROD stated that the Agency for
Toxic Substances and Disease Registry (ATSDR) had determined that other organic and inorganic
compounds were below levels of concern.
The EPA concluded that certain types of non-residential exposure to soil contaminated at up to 20 ppb
dioxin are below a level of concern for public health. This conclusion was based upon an ATSDR
advisory that the average lifetime daily dosage in a commercial setting contaminated at 20 ppb dioxin is
33 femtograms/kilogram body weight/day, and that this calculated exposure is below the average daily
dose estimated to be of concern for public health.
OU 2 Groundwater
The 1988 ROD for OU 1 stated that the existing groundwater data was insufficient to determine
groundwater remediation needs and that further monitoring was required. In response, additional
monitoring wells (MW-11, -12, -13, -14, -14A, -15, -15A, -15B, -16, -16B, -17, and-18) were installed
and subsequently monitored. A baseline risk assessment (BRA) was conducted in 1992 to evaluate
current and future potential risk of human exposure to site groundwater (Metcalf & Eddy, 1992). The
BRA did not address surface water, except to state that"... the exposures would be encompassed by
consideration of the three primary groundwater pathways developed in the exposure assessment." The
BRA was prepared using assumptions regarding maximum exposures that could be reasonably expected
for an individual living immediately downgradient of the Site and relying on a water well completed
within the shallow alluvial aquifer as a sole source of water for drinking and other purposes. This is
defined as the Reasonable Maximum Exposure scenario. The EPA considers the exposure to be
unacceptable if it results in a carcinogenic risk greater than one additional case of cancer per 10,000
people exposed. The EPA also considers the exposure to be unacceptable if it results in a non-cancer
hazard index greater than 1. The BRA determined that groundwater contaminant levels immediately
downgradient of the Site were within the acceptable risk range.
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Response Actions
OU 1 Soils and Equipment
In May 1988, the EPA completed a Record of Decision (1988 ROD) for the OU 1 dioxin-contaminated
soils and equipment at the Site. At the time of the 1988 ROD for OU 1, there was insufficient
information to determine whether remedial actions were also warranted for the groundwater and the
Spring River sediments; and groundwater was not yet designated as OU 2. Therefore, the 1988 ROD
also included additional monitoring and assessment of the groundwater and Spring River fish and
sediments. The 1988 ROD declared dioxin to be the primary contaminant of concern in the soil.
The 1988 ROD identified the following major components of the remedy:
• Excavation of TCDD-contaminated soils exceeding the 20 ppb action level2;
• Dismantle, as appropriate, and clean equipment with a series of solvent and aqueous rinses;
• Thermal treatment of soils excavated and removed from the Site and cleaning solutions;
• Maintain vegetative cover over surface soils containing greater than 1 ppb TCDD; and
• Install a vegetative clay cap over the Trench Area and a gravel drainage-interception trench
upgradient of the Trench Area3.
The 1988 ROD further clarified the remedial action components for each of the areas: Grid Area, Burn
Area, Spill Area, Irrigation Area, Trench Area, Lagoon Area, Slough Area. These remedial action
components were similar but varied slightly depending on the area. The remedial action components for
the Burn, Irrigation, and Lagoon Areas included excavation and incineration of dioxin-contaminated
soils > 20 ppb, as well as backfilling and reestablishing vegetation. These were the only areas where
excavation was a remedial action component, and only when soils exceeded the action level. It should be
noted that the 1988 ROD defined the Irrigation Area to be a portion (approximately 1 /6th) of the former
NEPACCO spray irrigation area. This was due to the sampling results that indicated this was the only
area that exceeded 20 ppb.
The 1988 ROD did not include remedial actions for the Spring River sediment since sediment sampling
and fish tissue sampling indicated remedial actions were not warranted. Spring River fish samples were
collected from 0.3 to 12 miles downgradient of the Site and over the period from 1981 to 1987. These
samples indicated decreasing dioxin concentrations over time and with distance downstream from the
Site. Additionally, since 1985, dioxin concentrations at all monitored locations downstream from the
Site were less than the FDA advisory level for reduced consumption. Spring River sediment samples
collected 0.3, 6, and 12 miles downgradient of the Site did not detect dioxin, except at the 0.3-mile
location, and levels at that location appeared to be decreasing and were well below the soil cleanup level
used for the residential exposure scenario.
2 The description of this remedial action component is quoted from the Record of Decision Declaration of the 1988 ROD.
However, it over-generalized the excavation activities. The ROD identified three areas for excavation on the basis of
sampling data available at the time: Burn Area, Irrigation Area, and Lagoon Area. This excavation component of the ROD
was further clarified in the detailed description of the remedial alternative and in the description of the alternatives evaluated:
"Soil sampling, using a 95 percent confidence level sampling protocol, would be conducted prior to the excavation of any
area to establish the extent of surface contamination." Subsequently, the soils containing 20 ppb or more were to be
excavated to a dioxin concentration less than 20 ppb, to a depth of 4 feet (ft), or to bedrock, whichever occurs first.
Additionally, there would be no excavation of the Trench Area soils due to concerns any excavation could potentially
mobilize contaminants.
3 The remedy for the Trench Area was backfilling trench depressions to grade with gravel, and a one-foot clay cap covered by
a one-foot vegetated soil cover, and a drainage-interception trench.
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OU 2 Groundwater
In April 1993, the EPA completed the ROD for OU 2. The ROD specified the following actions:
• No further remedial action;
• Conduct groundwater monitoring, including analysis for a dozen additional compounds, on a
quarterly basis for the floodplain monitoring wells for a period of two years;
• After the first year of groundwater monitoring, decrease the frequency to semi-annual for
compounds whose concentrations have remained constant;
• Conduct surface water sampling of the Spring River upstream and downstream of the facility
and the formerly contaminated areas in coordination with the groundwater monitoring
program;
• Conduct a risk assessment at the end of the two-year monitoring program to ensure that the
"no action" remedy remains protective of human health and the environment.
Remedial action objectives (RAOs) are media-specific or operable-unit-specific goals for protecting
human health and the environment. Although RAOs were not specifically delineated in the RODs for
OU 1 or OU 2, presumptive RAOs for the activities conducted at the Site were described in the 1997
FYR:
• Reduce exposure to contaminated soils at the Site, specifically TCDD contamination;
• Reduce contamination of on-site groundwater by addressing contaminated soils;
• Reduce exposure to materials and equipment contaminated with TCDD;
• Prevent mobilization of TCDD-contaminated soils to the Spring River to reduce potential
human exposure to fish containing TCDD;
• Assess the groundwater contamination to assure protectiveness.
Table 1: Cleanup Levels Selected in the RODs
OU1
OU 2
Media
Soil
Groundwater
Cleanup Level
TCDD concentration > 20 ppb* required excavation,
TCDD concentration >1 and <20 ppb
required vegetative cover
N/A**
* This was the action level established for the protection of human health and the environment at
commercial facilities.
** At the time of the remedial action, active remediation of groundwater was not needed; therefore
cleanup levels were not identified.
In May 1988, pursuant to the 1983 CAO, Syntex developed a Verification Sampling and Excavation
Plan to achieve the cleanup measures selected in the 1988 ROD for OU 1 (Syntex, 1988a). The remedy
in the 1988 ROD was to excavate and incinerate dioxin-contaminated soils > 20 ppb (as determined
using a 95 percent confidence level sampling protocol) in the Burn, Irrigation, and Lagoon Areas. The
Verification Sampling and Excavation Plan and the Implementation Plan (Syntex, 1988b) documented
the additional verification soil sampling and more robust statistical analysis (referred to as the
verification sampling protocol) to be used to first characterize the dioxin contamination of the surface
soils in these areas. The Implementation Plan clarified that if the surface soil concentration in an area
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was < 20 ppb, as determined by the verification sampling protocol, then stabilization measures alone
would be implemented, and excavation of the soils would not be performed. If the surface soil
concentration was found to exceed 20 ppb in an area, then soils would be excavated in 6-inch lifts. The
two-step process would then proceed with verification sampling of the exposed surface, followed by
excavation if the dioxin concentration exceeding 20 ppb, until the dioxin concentration was less than 20
ppb, a depth of 4 feet (ft) was reached, or to bedrock, whichever occurred first.
The Burn Area and the Irrigation Area were smaller areas, approximately 7,500 and 4,500 ft2,
respectively, so the Implementation Plan specified they would each be addressed individually, as single
units. The Lagoon Area was larger and therefore broken into 13 smaller subareas with 5 buffer subareas
bounding part of the Lagoon Area. For two subareas of the Lagoon Area, the Implementation Plan called
for the upper 18 inches of soil to be excavated and incinerated prior to the first round of verification soil
sampling.
In December 1988, the remedy in the OU 1 ROD was amended to include a flood control berm. This
amendment occurred when the EPA approved Syntex's plans for construction of a flood control levee
(or berm) around the manufacturing facilities on the Site, including the Lagoon Area, Spill Area, and
Irrigation Area. In approving the flood control berm, the EPA concluded that the flood control measures
were consistent with the intent of the OU 1 ROD, did not alter the OU 1 ROD activities, and aided in the
long-term maintenance of vegetation and in the reduction in potential contaminant migration. Most
importantly, the EPA incorporated the berm into the OU 1 ROD. "The flood control measures in the
future will be considered part of the ongoing response action under ..." OU 1. The EPA further clarified,
"Efforts on the flood control measures should subsequently be incorporated into remedial action
timetables and future progress reports." (EPA, 1988b).
On July 17, 1997, the EPA issued a Removal Action Memorandum to address poly chlorinated biphenyl
(PCB)-contaminated soils that were found in the area around a former electrical building, also referred
to as the PCB Spill Area. The proposed actions included characterization and removal of the former
electrical building and contaminated debris, and characterization and removal of contaminated soil
around the electrical building.
In July 1997, the EPA and Syntex entered into an Administrative Order on Consent (AOC) with Syntex
(1997 AOC) to complete OU 2 groundwater and surface water monitoring and human health risk
assessment activities, and to conduct the removal activities to address the PCB Spill Area (EPA, 1997).
The AOC approved the OU 2 Implementation Plan dated June 1995 (Radian, 1995), which described
how the OU 2 ROD requirements were to be implemented.
Status of Implementation
OU 1 Soils and Equipment
Remedial action activities specified in the 1988 ROD for OU 1 began in 1988. The remedial action
activities related to soils contaminated with dioxin were completed in 1989 in a manner consistent with
the 1988 ROD, the Verification Sampling and Excavation Plan (Syntex, 1988a), and the Implementation
Plan (Syntex, 1988b). Regarding the Burn, Irrigation, and Lagoon Areas specifically, the remedial action
activities to address the dioxin-contaminated soils began with the additional surface soil characterization
activities (i.e., verification sampling and statistical analysis), which were described in the 1988 ROD and
incorporated into the Implementation Plan. Surface soil was reassessed in the Burn and Irrigation Areas.
The surface soils in the Burn and Irrigation Areas were both determined to have dioxin concentrations
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less than 20 ppb, so no excavation was necessary. In the Burn Area, topsoil was used to fill a depression,
and vegetation was reestablished. In the Irrigation Area, topsoil was used to raise the elevation and
prevent surface water drainage through it, and vegetation was reestablished. In the subareas that
comprise the Lagoon Area, soils were excavated to varying depths in accordance with the
Implementation Plan. Approximately 860 cubic yards of dioxin-contaminated soil was excavated,
transported to the EPA Mobile Incineration System, and incinerated. The excavated areas of the Lagoon
were backfilled with soil, with the last six inches being topsoil, and vegetation was established.
By 1990, most of the dioxin-contaminated equipment had been dismantled and decontaminated in a
manner consistent with the 1988 ROD and Implementation Plan.
The flood berm was constructed to guard against potential flooding, up to the 100-year flood level. The
flood berm design plans were submitted in the May 25, 1989 Addendum to the Implementation Plan for
OU 1 (Syntex, 1989). Construction of the flood berm appears to have been completed in 1989. Syntex
did not submit final as-built drawings to the EPA. Although it was a component of the OU 1 remedy, for
unknown reasons the flood berm was not addressed in either the 1998 Preliminary Closeout Report
(EPA, 1998a) or the 1998 Remedial Action Report (EPA, 1998b).
In 1995, all equipment and debris were removed from the Spill Area. No excavation was initially
required in this area because the concentration of dioxin contamination was below the 20 ppb action
level. The original plan called for a vegetative cap, but the owner wished to use the area for parking and
movement of vehicles and equipment, so an asphaltic cap was substituted. The EPA and MoDNR agreed
that this cap would be as protective as a vegetative cap and would need to be maintained in perpetuity
(EPA 1995a,b).
Decontamination procedures were developed to clean the contaminated NEPACCO and photolysis
equipment. The procedures were implemented, and approximately 75 percent of the equipment was
treated. The land disposal restrictions posed problems for final management of the treated equipment. In
1996, a determination was made by the EPA, under the hazardous debris rule, that the developed
procedures would adequately protect human health and the environment and allowed the treated
equipment to be disposed of as a solid waste. All of the equipment has since been properly treated and
disposed.
Additional dioxin soil contamination was discovered in March 1997 near the former T-l dike in the Spill
Area. The EPA Remedial Action Report, dated September 1998, reports that soils contaminated with
dioxin above 20 ppb were excavated and transported to a commercial incinerator for thermal treatment.
The excavated area was backfilled with a minimum of one foot of clean dirt and capped with an
asphaltic cover. This work was completed in December 1997.
Removal activities related to the PCB-contaminated soils and small electrical building were conducted
between September 1997 and January 1998 pursuant to the 1997 Removal Action Memorandum. The
soil characterization and excavation were done in an iterative manner similar to the excavation activities
for the dioxin-contaminated soils in the Lagoon Area (Syntex, 1997).
On January 22, 1998, a final inspection was conducted by representatives of the EPA, MoDNR and
Syntex, after which the OU 1 remedy was determined to be operational and functional (EPA, 1998b).
Figure 2 (Appendix A) identifies the areas of remedial and removal activities.
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OU 2 Groundwater
Following completion of the OU 2 ROD in 1993, Syntex continued to collect groundwater samples and
installed additional groundwater monitoring wells, including replacing several existing Trench Area
groundwater monitoring wells that had not produced sufficient water for sampling.
Pursuant to the 1997 AOC to implement the 1993 OU 2 ROD, Syntex collected water samples from the
groundwater monitoring well network in the East Area for eight consecutive quarters, from November
1997 through August 1999. Concurrent with the groundwater sampling events, Syntex also collected
surface water samples from the Spring River at one upstream and one downstream location. Syntex
subsequently submitted a draft Human Health Risk Assessment (HHRA) in February 2000 (S.M. Stoller,
2000). The draft HHRA evaluated the potential on-site risks for the industrial worker scenario and off-
site risks to residents. The draft HHRA concluded there was not a complete exposure pathway to
contaminated groundwater because the groundwater discharged to the Spring River and exposure to
surface water did not exceed acceptable levels. Syntex continued to voluntarily perform groundwater
monitoring on a semi-annual basis from late 2003 to 2005 and then annually thereafter through 2012.
Syntex also voluntarily performed groundwater monitoring of Trench Area monitoring wells between
August 2002 and 2012.
OU 1 Soils and Equipment AND OU 2 Groundwater
The Fourth and Fifth FYRs, completed in 2012 and 2017, found that at the time the Remedial Actions
for the OU 1 soils and equipment and OU 2 groundwater were implemented, they were protective of
human health and the environment (EPA, 2012; 2017). However, these FYRs concluded that the overall
protectiveness of the remedy could not be determined without additional information. The primary
factors that led to this determination included the following:
• After the remedies were selected, standardized risk assessment methodology and input
parameters were updated;
• The toxicity values for 1,4-dioxane and TCDD were revised in 2009 and 2012, respectively,
which effectively lowered the levels of exposure considered to be protective;
• Risks associated with 1,4-dioxane could not be properly evaluated because existing analytical
results for 1,4-dioxane had quantification limits that were higher than the new toxicity value.
In addition, 1,4-dioxane was found to be present above the screening level in groundwater at the Site
when samples collected in December 2016 and February 2017 were analyzed using more sensitive
techniques.
To address the issues identified in the Fourth FYR, the EPA completed an AOC with Syntex in
September 2016 (2016 AOC) (EPA, 2016). The purpose of the 2016 AOC was to conduct additional
investigations of the Site and determine whether the remedies implemented at the Site remained
protective. The additional investigations included soil, sediment, and groundwater sampling; monitoring
well installations; and hydrogeological and geotechnical characterization. The 2016 AOC also included
reassessment of human health and ecological risk using current methodologies, assumptions, and
toxicity values. Syntex began these investigations in late 2016, as the Fifth FYR was being conducted,
and most of these investigations have now been completed. The only ongoing investigations pursuant to
the 2016 AOC are related to 1,4-dioxane contamination associated with OU 3. Table 2 summarizes the
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objectives and findings of investigations conducted pursuant to the 2016 AOC, as well as additional
investigations conducted voluntarily by Syntex.
Table 2 - Summary of Investigations and Findings from 2016 AOC Work
Investigations
Date
Completed
Findings
Pathways Analysis - Identify site-specific
exposure parameters for human receptors
exposed to shallow soils in each of four areas
within the East Area, referred to as Super
Decision Units (SDUs).,
July 2016
Exposure parameters were identified for five potential
receptor categories: Plant Worker, Maintenance Worker,
Groundskeeper, Trespasser, and Short-Term Contract
Worker (Foth, 2016a).
East Area Soil Sampling and Protectiveness
Evaluation - Determine whether exposure to
dioxin and dioxin-like compounds (DLCs) in the
East Area shallow soil is within acceptable
limits. First, develop site-specific, risk-based
concentrations (RBCs) for each SDU and DU
using the site-specific exposure parameters
identified in the Pathways Analysis. The RBCs
represent the upper threshold for acceptable
exposure to shallow soil. Second, characterize
concentrations of dioxin and DLCs in shallow
soils across the East Area. Third, calculate an
exposure point concentration (EPC) for each
individual SDU and DU, based on the
concentrations of dioxin and DLCs. Fourth,
compare each EPC to the relevant site-specific
RBC.
July 2020
Dioxin is present in shallow soil samples collected across
the East Area at concentrations ranging from 0.0017 to
5.3 micrograms per kilogram (|ig/kg). DLCs were also
detected in some areas. An EPC for each SDU and DU
was calculated and compared to the respective RBC.
The exposures of each of the potential receptors (Plant
Worker, Maintenance Worker, Groundskeeper,
Trespasser, and Short-Term Contract Worker) to dioxin
and DLCs in shallow soils were within acceptable limits
(i.e. the EPCs did not exceed the relevant RBCs) (Foth
2020c). Refer to Appendix A, Figure 3.
East Area Well Installations - Install three
additional monitoring wells in the bedrock
downgradient of the Site to evaluate
groundwater quality, water levels and aquifer
properties.
December
2020
The bedrock wells EA-221B, EA-222B, and EA-223B
were constructed, developed, and surveyed. Hydraulic
testing results indicate EA-221B and EA-223B exhibit
moderate hydraulic conductivity on the order of 10~3 to
10"4 cm/sec. EA-222B exhibited low hydraulic
conductivity (Foth, 2020g).
East Area Groundwater Sampling - Conduct
six quarters of groundwater sampling of
monitoring wells and analyze for VOCs,
SVOCs, dioxins, and furans. Monitor water
levels and assess flow direction. After the six
quarters of monitoring was complete, work
plans were amended to include additional
monitoring events as well as a direct-push
technology (DPT) soil and groundwater
investigation, the purpose of which was to
determine potential source areas for the 1,4-
dioxane plume, evaluate the extent of the plume
in the alluvial aquifer, and evaluate the aquifer's
hydraulic properties.
Ongoing
Groundwater flow is generally to the north within the
Spring River valley. Analytical results have been
generally consistent since this sampling began. TCDD
was not detected in any well. Hexachlorophene was not
detected in any well. Other than 1,4-dioxane, discussed
below, chlorobenzene was the only other SVOC or VOC
detected above its Project Quantitation Limit Goal4
(PQLG). The PQLG for chlorobenzene (100 |ig/L) is
based on the MCL. Chlorobenzene was detected in a few
East Area monitoring wells; however, it was only
detected above its PQLG in one alluvial monitoring well
(MW-06), at levels ranging from 70 to 170 |ig/L. The
extent of chlorobenzene contamination is limited, and
results and concentrations are considered steady over the
six quarters (Foth 2018a)
A plume of 1,4-dioxane is present in the East Area
exceeding EPA's tapwater Removal Management Level
4 Project Quantitation Limit Goals (PQLGs) are analytical goals listed for the purpose of evaluating laboratory analytical
methods and achievable laboratory limits. For groundwater, PQLGs are based on federal Maximum Contaminant Levels
(MCLs), where available, or the EPA's tapwater Regional Screening Levels (RSLs) or Removal Management Levels
(RMLs). For soil and sediment, PQLGs for 1,4-dioxane and chlorobenzene are the EPA's Regional Screening Levels.
10
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Investigations
Date
Completed
Findings
(RML) of 46 |ig/L and is detected in the northernmost
monitoring wells at the north boundary of the East Area.
Concentrations in monitoring wells have ranged as high
as 2,650 |ig/L. observed in bedrock monitoring well EA-
223B in June 2020. DPT results are discussed in the data
review section below (Foth, 2020a,b,d,e,f; 2021a,b,f,g).
Refer to Appendix B, Tables 1 and 2, and Appendix A,
Figure 4.
Trench Area Well Installations and
Geotechnical Investigation - Evaluate the
physical properties of the in situ soil column
relative to potential contaminant migration.
Install and close certain wells to enhance the
Trench Area monitoring well network. Conduct
bedrock evaluations to further enhance the
Conceptual Site Model (CSM).
July 2021
Seven pre-existing Trench Area bedrock wells were
decommissioned, and six new bedrock wells were
installed with larger diameter pre-packed well screens.
Geophysical logs were collected during construction of
two of the wells. Rock cores were collected and
described, including petrographic analysis of thin
sections, and core plug analysis of porosity and
permeability. Slug tests were performed in the new wells
that produced water. The CSM was refined and is well-
understood. Monitoring wells were designed to intercept
potential releases (Foth, 202le).
Trench Area Groundwater Sampling -
Conduct six quarters of groundwater sampling
of monitoring wells and analyze for VOCs,
SVOCs, dioxins and furans.
November
2019
Groundwater flow direction is generally to the east and
south toward the Spring River and mimics topography in
this upland area. TCDD and furans were not detected in
any wells. One dioxin congener (octachlorodibenzo-p-
dioxin [OCDD]) was detected in one well at 140
picograms per liter (pg/1), well below any level of
concern. Hexachlorophene was not detected in any well.
1,4-dioxane was detected in three of four sampled wells
at up to 18.9 |ig/L (RML 46 |ig/L). No other VOC or
SVOC were detected at levels of concern (Foth, 2019b).
Refer to Appendix B, Tables 3 and 4, and Appendix A,
Figure 5.
Spring River Sediment Sampling - Sample
sediments in the Spring River, on and
downstream of the Site, to characterize the
concentrations of dioxin and DLCs.
December
2017
Composite sediment samples were collected from each of
the 24 300-ft-long segments. Dioxin was non-detect in 23
segments. Dioxin was detected in one segment at 1.1
parts per trillion (ppt), which is just above the detection
limit of 1.0 ppt. Four DLCs were detected in several
locations at concentrations that are insignificant, as they
are far less toxic than dioxin, and two were also found at
the background sample location (Foth, 2017e). Refer to
Appendix B, Table 5, and Appendix A, Figure 6.
Spring River Screening-Level Ecological Risk
Assessment - Based on the Spring River
sediment sampling results, evaluate the potential
risk to mammals, birds, and fish due to dioxin
and DLCs.
December
2017
The estimated risk to mammals, birds, and fish, due to
dioxin and DLCs in the Spring River sediment, is within
acceptable standards. Further assessment of ecological
risk to the receptors is not necessary (Foth, 2017f).
Trench Area Roadways Shallow Soil
Sampling, Analysis and Human Health Risk
Evaluation Report (Additional investigation
conducted voluntarily by Syntex. Not
required pursuant to the 2016 AOC.)
Conduct soil sampling activities to characterize
the soil conditions in the areas adjacent to the
roadbeds in the Trench Area. Determine whether
exposure to dioxin and DLCs in the shallow soil
is within acceptable limits.
August 2019
The area along the roadbed to the Trench Area was
divided into 24 DUs that represent a single SDU for
purposes of the human health risk evaluation. Samples
collected from the 24 DUs were used to calculate an EPC
for the SDU. The EPC was less than the RBC for
potential receptors. Therefore, it was concluded that
exposures to the roadway are within acceptable limits;
and further, that the pavement and gravel that currently
cover the roadway and staging area are not necessary for
protection of human health (Foth 2017b).
11
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IC Summary
The OU 1 ROD does not specify the use of Institutional Controls (ICs); however, the Site was placed on
the Missouri Registry of Confirmed Abandoned or Uncontrolled Hazardous Waste Disposal Sites
(Missouri Registry) on January 1, 1984. The Registry is a listing of sites that contain hazardous waste
that are subject to Missouri law and regulation providing for institutional control of the listed sites. ICs
include the following: deed notification of contamination; annual inspection conducted by MoDNR,
notice to buyer; change of use review; notice to the state if property is sold; cleanup and removal from
the Registry; and public information about site location, classification of threat, contaminants, health
concerns for public and private drinking water wells, and geology. Registry listing places the following
use restrictions on a property: site use may not change substantially without written approval of the
director of MoDNR; a change of use is considered substantial if it can result in the spread of
contamination, increases human exposure to hazardous materials, increases adverse environmental
impacts, or makes potential remedial actions to correct problems at the site more difficult; the seller
must notify the buyer of the condition prior to site sale; change of ownership must be reported to the
department within 30 days after the change. In 2002, at the request of Syntex, the Registry was modified
to reflect changes in ownership and to identify the Trench Area as the area of concern in the West Area
(Schuette, 2002). The Site is reported on the Registry as two listings: Syntex - Verona (East) and Syntex
- Verona (West).
The OU 2 ROD did not specify the use of ICs. However, the remedy was selected under the assumption
that the voluntary land use restrictions put in place during the OU 1 remedial action would effectively
prevent residential use of the Site and that the nearby municipal well (Empire District Well #3) would
not be used5. The OU 2 ROD also cited the Site's status on the Missouri Registry.
Recent investigations have identified a plume of 1,4-dioxane-contaminated groundwater that extends
approximately 1,300 ft north of the East Area (Foth, 2020e). Although not required by either the OU 1
ROD or the OU 2 ROD, the current property owners voluntarily placed three Environmental Covenants
(ECs) on the Site and the North Property to prevent potential exposures to historic COCs and the 1,4-
dioxane-contaminated groundwater. The property owners consulted with the EPA and MoDNR in the
development of the ECs to ensure their effectiveness and compliance with the Missouri Environmental
Covenants Act. Together, the three ECs address contaminated media across the East and West Areas of
the Site, as well as the adjoining 60-acre property to the north (referred to as the North Property). The
ECs are provided in Appendix F.
Land use of the East Area has remained industrial since the OU 2 ROD and there has been no residential
use. Similarly, there has been no residential use in the West Area.
On Jan. 9, 2019, the EC covering the East Area of the Site went into effect (Lawrence County Recorder,
2019). The EC assures that any future activities causing the soil to be disturbed or excavated will be
conducted in a manner that is protective of human health and the environment. The EC requires the soils
be sampled for dioxin and dioxin-related compounds, as well as PCBs, prior to disturbance or
excavation and assessed for risks; and requires proper maintenance of asphalt and concrete-covered
areas. Additionally, the EC prevents groundwater use at the Site for any purpose other than sampling.
The EC also restricted all use of Empire District Well #3 and required the well be decommissioned
within 180 days of the execution of the EC. Plugging and decommissioning of the Empire District Well
#3 was completed on June 25, 2019 (EW, 2019).
5 The Empire District Well #3 was removed from service as a municipal well in 1988 (Young, 2022).
12
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On April 13, 2022, ECs covering the West Area of the Site and the North Property went into effect
(Lawrence County Recorder, 2022a, 2022b). The EC covering the West Area restricts residential,
agricultural, and recreational uses, restricts groundwater use, restricts construction of structures, and
specifies boundary fence maintenance. For the Trench Area specifically, the EC sets forth additional cap
maintenance, fencing, and signage requirements. The North Property EC restricts drilling, groundwater
use, and activities that interfere with environmental investigations or remediation activities.
Table 3: Summary of Implemented ICs
Modiii. eniiinem'd
ICsCiilkd
Tillc of l(
controls. ;iihI ;uv;is lluil do
ICs
lor in I Ik*
lmp;ick-d
IC
liislriiiiicnl
not support I 1 /I 1. bused
Needed
Decision
PillVOllS)
OI).jcc(i\c
Implemented ;ind
oil curmil conditions
Documents
l);ile (or pliiniicd)
Soil
Yes
No
Trench
Area; East
Area
Registry of
Confirmed
Abandoned or
Notify Public
Uncontrolled
Hazardous Waste
Groundwater
Yes
No
Entire Site
Disposal Sites in
Missouri. Placed
January 1, 1994.
Restricts soil
excavation and
Soil and groundwater
Yes
No
East Area
disturbance, restrict
installation of wells
and groundwater use,
requires placement
and maintenance of
asphalt/concrete in
certain areas.
Environmental
Covenant #2019-
00000088 Recorded
1/9/2019.
Restricts residential,
some commercial,
recreational, and
timber harvesting uses
of property. Requires
Trench Area
restrictions, access
Soil and groundwater
Yes
No
West Area
control, and
maintenance
obligations. Requires
maintenance of
property boundary
fence. Restricts
drilling, well
installations, and use
of groundwater.
Restricts construction
of buildings with
foundations.
Environmental
Covenant
#2022002115
Recorded 4/13/2022.
13
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Restricts drilling, well
installation and use of
groundwater. Restricts
Environmental
Groundwater
Yes
No
North
Property
any property use that
might interfere with
environmental
investigations or
remediation activities.
Covenant
#2022002116
Recorded 4/13/2022.
Systems Operations/Operation & Maintenance
OU 1 Soils and Equipment
Remedial action activities at OU 1 were completed and documented in January 1998; there is no active
soil remediation system operating at the Site. The Remedial Action Report states "The vegetative and
asphalt caps over the areas where dioxin contamination was located have been satisfactorily maintained
by Syntex. Syntex will continue to maintain these capped areas in perpetuity." (EPA 1998b)
Additionally, the OU 1 ROD was implemented by Syntex pursuant to the 1983 CAO. The CAO, among
other things, required Syntex to post and maintain warning signs, prepare an implementation plan to
implement the selected remedy, and implement the remedy. Further, the Implementation Plan included
activities to maintain the vegetative covers, to inspect them routinely and following flood events, and to
implement corrective actions when deficiencies are observed (Syntex, 1988b).
The East Area is maintained by the current site owner, BCP. The Trench Area is maintained by Syntex.
Operation and maintenance (O&M) of OU 1 consists of periodic inspection of the areas capped with soil
or asphalt, and inspection and mowing of the vegetative cover. The inspections are conducted to assess
conditions of the asphalt, erosion, and general drainage, and to document signage and any potential
evidence of unauthorized entry. Corrective actions are performed to address issues identified in the
inspections. These inspections and corrective actions have been conducted by Syntex on an
approximately quarterly basis since 2005, and once every two months in the years prior to 2005 (Foth,
2021c). Minor issues have been addressed as they are identified.
In addition to the O&M activities described above, pursuant to the 2016 AOC, Syntex has been
conducting additional soil, sediment, and groundwater investigations of the Site and other activities to
determine whether the remedies implemented at the Site remain protective. Representatives of Syntex,
as well as the EPA and MoDNR, have been on site periodically and, as such, have made observations on
site conditions. Also, MoDNR has performed annual registry site inspections (MoDNR, 2018a,b; 2019a;
2021 a,b). The MoDNR inspections and Syntex's inspections indicate all covered/stabilized areas are
well maintained.
In 2018, Syntex and BCP completed hardscape improvements to ensure that soil surfaces in regular use
in operating portions of the Plant are covered with asphalt or concrete (hardscape). This work was
completed pursuant to the 2018 EC as a precaution to prevent plant workers from being exposed to soil
potentially contaminated with TCDD. The hardscape improvements included improving drainage,
placing and replacing asphalt and concrete, and applying sealcoat to certain areas of existing asphalt
(Foth, 2017d, 2018b).
Two flood events have occurred in the East Area since the previous FYR. The first flood event occurred
May 17 and 18, 2021, due to heavy localized rain in upstream areas of the Spring River basin. The BCP
manufacturing facility is surrounded on three sides by a flood berm and on the east side by the berm
14
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elevating the railroad tracks. The flood waters inundated the East Area, as well as the BCP
manufacturing facility. Flood waters entered primarily through the facility entry road that crosses at a
low area in the berm, as well as through a section of the railway that washed out. At its peak, the flood
resulted in water depths ranging from 1.5 to 3.5 ft. The second flood event that occurred May 27, 2021,
inundated a large portion of the East Area outside the facility's flood berm. Pursuant to the 2018 EC on
the East Area, the flood events were reported to the EPA by BCP. Syntex also reported the flood events.
Reports submitted by BCP and Syntex documented the flooding, assessed the condition of the capped
and asphalt-covered remediated areas, assessed potential impacts to the groundwater monitoring well
network, and documented damage to the facility's security fence. Following both rainfall events, Syntex
and BCP inspected the remediated areas: Burn Area, Grid Area, Lagoon Area, Irrigation Area, Slough
Area, Spill Area, T-l Dike Area, and Trench Area and did not find any weather-related impacts
affecting the remedy protectiveness. The post-flood inspections indicated the OU 1 remediated areas
remain intact and protective (EW, 2021; Foth, 202Id).
Syntex and BCP have been performing O&M activities that were described in general terms in the
Implementation Plan, as amended (Syntex, 1988b; 1989). Those activities have generally been
sufficient, with a few exceptions that were documented during the FYR site inspection and EPA field
oversight activities. However, neither an O&M Plan nor an O&M Manual for the OU 1 remedy were
ever submitted to the EPA. Additionally, the O&M activities in the Implementation Plan did not address
O&M of the flood berm. The lack of an O&M Plan and O&M Manual has been identified as an issue in
this FYR.
OU 2 Groundwater
The remedy selected in the OU 2 ROD included groundwater monitoring. Routine O&M has been
superseded by the additional groundwater investigations and other site activities being conducted
pursuant to the 2016 AOC. Refer to the Status of Implementation section above for a summary of these
additional activities.
III. PROGRESS SINCE THE LAST REVIEW
This section includes the protectiveness determinations and statements from the 2017 FYR, as well as
the issues and recommendations from the 2017 FYR and the current status of those recommendations.
Table 4: Protectiveness Determinations/Statements from the 2017 FYR
OU#
Protectiveness
Determination
Protectiveness Statement
1
Protectiveness
Deferred
A protectiveness determination for the remedy at OU 1 cannot be made at this
time until further information is obtained. Further information will be obtained by
collecting additional soil samples as specified in the 2016 AOC and conducting a
human health and ecological risk assessment. It is expected that these actions will
take approximately 18 months to complete, at which time a protectiveness
determination will be made.
2
Protectiveness
Deferred
A protectiveness determination for the remedy at OU 2 cannot be made at this
time until further information is obtained. Further information will be obtained by
collecting additional groundwater and sediment samples as specified in the 2016
AOC and conducting an ecological risk assessment. It is expected that these
15
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actions will take approximately 18 months to complete, at which time a
protectiveness determination will be made.
Sitewide
Protectiveness
Deferred
A protectiveness determination for the remedy at the Site cannot be made at this
time until further information is obtained. Further information will be obtained by
additional sampling of soil, sediment, and groundwater as specified in the 2016
AOC. It is expected that these actions will take approximately 18 months to
complete, at which time a protectiveness determination will be made.
Table 5: Status of Recommendations from the 2017 FYR
OU#
Issue
Recommendations
Current
Status
Current Implementation Status
Description
Completion
Date (if
applicable)
1
Continue
additional
sampling of soil as
specified in the
2016 AOC.
Continue with
additional soil
sampling and risk
characterization
activities specified
in the 2016 AOC
and evaluate the
need for any
additional remedial
action.
Completed
The work described in the
recommendations was completed and
the existing OU 1 remedy has been
determined to be protective to current
and potential future receptors. The work
is documented in the Revised East Area
Shallow Soil Sampling, Analysis, and
Protectiveness Evaluation Report and
Response to Comments (Foth, 2020c)
and the Trench Area Roadways
Shallow Soil Sampling, Analysis, and
Human Health Risk Evaluation Report
(Foth, 2021 h)'1". The work
demonstrated the EPCs for all the SDUs
and DUs are below their RBCs for the
relevant receptors. Notably, the SDUs
and DUs cover the entire East Area,
including the historic remediated areas
not covered in hardscape, as well as the
area around the Trench Area and
roadways to the Trench Area.
12/15/2021
2
Continue
additional
sampling of
groundwater as
specified in the
2016 AOC.
Continue with
additional
groundwater
sampling and risk
characterization
activities specified
in the 2016 AOC
and evaluate the
need for any
additional remedial
action.
Ongoing
The recommendation in the previous
2017 FYR included both groundwater
sampling and "... risk characterization
activities specified in the 2016
AOC...". However, the 2016 AOC did
not specify risk characterization
activities for the groundwater. Per the
2016 AOC, the groundwater sampling
results "... will be used to perform a
groundwater assessment with
appropriate groundwater comparison
values to help evaluate remedy
protectiveness." The groundwater
monitoring has demonstrated the OU 1
soil remedy is protective as to
groundwater with respect to TCDD and
hexachlorophene, since they were not
detected in any site well.
Characterization of 1,4-dioxane extent
currently continues under the 2016
AOC. However, the 1,4-dioxane
Click here lo
cnlcr a dale
16
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concentrations are indicative of an
ongoing release by the current property
owner, BCP. In February 2022, the
EPA initiated negotiations on an Order
for focused RI/FS with BCP and
Syntex.
1
Utilizing the
newly established
reference dose
(RfD) and
standard non-
residential use
EPA risk
equations and
exposure factors, a
concentration of
600 ppt dioxin is
shown to be
associated with a
hazard quotient of
1 for
nonresidential
exposure to
dioxin-
contaminated soil.
Characterize current
dioxin soil
contamination and
conduct a human
health risk
assessment utilizing
the best available
data.
Completed
Consistent with the Pathways Analysis
Report Plan for Protectiveness
Evaluation (Foth, 2016a) that is an
appendix to the 2016 AOC, site-specific
RBCs were developed for a range of
potential human exposure scenarios.
(The default value of 600 ppt dioxin is
no longer applicable.) Syntex
investigated shallow soils across the
East Area and along the roadways
leading to and around the historic
Trench Area in the West Area. The
results of this work demonstrated that
the EPCs for all SDUs and DUs were
below their respective RBCs.
7/15/2020
1
Implemented
remedy did not
address subsurface
soil >20 ppb
dioxin.
Evaluate risk posed
by such soil.
Considered
But Not
Implemented
This issue, that was first put forth in the
2012 FYR and again in the 2017 FYR,
erroneously implies that the remedy
was intended to address all subsurface
soil > 20 ppb dioxin. The remedy in the
Record of Decision (EPA, 1988a) was
for soils "... containing 20 ppb or more
dioxin based on the 95 percent
confidence level sampling..." to "... be
excavated up to a four-foot depth, to
bedrock or to a dioxin concentration
less than the action level, whichever
occurs first." The three subsite areas to
which this remedy applied were the
Burn Area, Irrigation Area, and Lagoon
Area.
The work plans to implement the
remedy provided the following
clarification: "EPA has advised Syntex
that it interprets CDC's guidance as
requiring removal of all soils at the
surface containing an average
concentration of 20 ppb or greater."
(Syntex, 1988) The activities at the
involved areas were performed and are
documented in the Remedial Action
Report (EPA, 1998b).
icrc lo
i dale
1
"Containment"
remedy is reported
to have been
Characterize current
site conditions.
Evaluate risks to
Completed
Refer to Current Implementation Status
Description for Issues #1, #3, and #4.
The existing OU 1 remedy has been
12/15/2021
17
-------
implemented only
at excavated areas
(which were
backfilled/capped
with clean soil),
resulting in both
defined and
undefined areas of
"non-contained"
surface soil with
dioxin exceeding
600 ppt.
current and potential
future receptors.
Determine whether
additional remedial
actions are
necessary.
determined to be protective to current
and potential future receptors.
1
"Based on
historical data
collected from the
Site,
approximately 3.5
acres of surface
soil may contain
concentrations of
dioxin that exceed
the EPA's
industrial soil
screening level
based on the new
dioxin toxicity
value.
Characterize current
site conditions.
Evaluate risks to
current and potential
future receptors.
Determine whether
additional remedial
actions are
necessary.
Completed
Refer to Current Implementation Status
Description for Issues #1, #3, and #4.
The existing OU 1 remedy has been
determined to be protective to current
and potential future receptors.
12/15/2021
1
The complexity of
the hydrogeologic
setting of the
Trench Area
suggests that
potential releases
may not be
intercepted by the
existing well
network.
Evaluate existing
well network and
modify as
appropriate.
Completed
The 2016 AOC included work plans to
address this issue and recommendation.
Syntex completed and reported on the
work. Syntex replaced all pre-existing
Trench Area wells, and installed and
sampled new wells in the Trench Area
that were designed specifically to
intercept potential releases. Syntex also
installed but was unable to sample
several additional wells that did not
produce sufficient water. Along with
geophysical logging, HPT/EC
investigation, geotechnical laboratory
analysis of soil, and well hydraulic
testing, a comprehensive CSM has been
compiled. The remedy is protective
because the CSM is understood, the
wells were specifically designed to
intercept potential releases, and all
contaminants detected were within the
applicable CERCLA risk range (Foth,
2019b & 2021e).
7/31/2021
1
Secondary
structural features
of the residuum
may result in
unacceptably high
rates of potential
contaminant
Re-evaluate physical
properties of the in
situ residuum
underlying the
Trench Area with
respect to its ability
to inhibit/prevent
Completed
The 2016 AOC included work plans to
address this issue and recommendation.
Syntex completed geotechnical
investigations of the Trench Area and
reported on the investigations. The
Trench Area engineered cap and
vegetative cover are intact and
7/31/2021
18
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transport in the
Trench Area.
contaminant
constituent
migration into the
environment.
Re-evaluate decision
to contain/cap
Trench Area.
effective, shedding stormwater away
from waste materials. Moreover, waste
materials are above the water table.
Groundwater monitoring results from
the Trench Area wells indicate all
contaminants detected were within the
applicable CERCLA risk range. The
containment/cap remedy selected in the
OU 1 ROD continues to be an effective
remedy.
1 & 2
An ecological risk
assessment has
not been
performed.
Conduct an
ecological risk
assessment using
best available
data and newly
acquired data as
needed.
Completed
The 2016 AOC included work plans
to address this issue and
recommendation. Syntex completed
and reported on the work. Based on
discussions leading up to the 2016
AOC, a site-wide ecological risk
assessment was determined to be
unnecessary; instead, sampling and a
screening-level ecological risk
assessment (SLERA) were performed
on the sediments of the Spring River.
TCDD was not detected in 24 of the 25
composite sediment samples collected
from locations distributed along the
length of the Spring River through the
Site. The one detection of TCDD was
just above the reporting limit, and well
below a level of concern (Foth, 2017e).
Using the sampling results, the
SLERA evaluated mammalian,
avian, and piscine exposures to
Spring River sediment. The most
conservative habitat assumptions
were used. The ecological risk of
exposure (to Spring River
sediments) to the eco-receptors was
well below the most conservative
screening levels (Foth, 2017f).
Further evaluation of ecological risk
to the receptors is unwarranted. The
remedy is protective as to ecological
risks.
12/15/2017
2
1,4-dioxane has
not been analyzed
with an analytical
method having
quantitation levels
that would support
a risk assessment.
Revise groundwater
sampling and
analysis plan to
identify an
appropriate
analytical method
yielding quantitation
levels sufficient to
support a risk
assessment.
Completed
The 2016 AOC included work plans to
address this issue and which
implemented the recommendation. The
groundwater sampling and analysis
plans in the 2016 AOC have
quantitation levels for 1,4-dioxane
sufficient to support a risk assessment
(Foth, 2016b).
7/8/2016
19
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Monitoring of the
deep alluvial
screened intervals
has not occurred
in the past 10
years.
Begin monitoring
the alluvium-
bedrock contact
and/or bedrock prior
to assessing current
site risk associated
with groundwater.
Completed
The 2016 AOC included work plans to
address this issue and recommendation.
The well network was enhanced by the
installation of three additional
monitoring wells in the bedrock in
October 2016. Quarterly groundwater
monitoring of the alluvial, alluvial
/bedrock interface, and bedrock wells
was conducted beginning December
2016 and continuing through February
2018 (Foth, 2019b). Additional
quarterly sampling continues under
addenda to the work plans.
12/12/2016
(1) Additional investigation conducted voluntarily by Syntex. Not required pursuant to 2016 AOC.
IV. FIVE-YEAR REVIEW PROCESS
Community Notification, Involvement and Site Interviews
On September 1, 2021, a public notice was published in The Lawrence County Record stating that the
sixth FYR was to be conducted, and inviting the public to access and review the on-line repository of
site project information. The public notice invited the public to submit questions and any requests for
information regarding the FYR process. On December 9, 2021, the EPA conducted a public availability
session in Verona, Missouri, to update the public on recent site activities, as well as to announce that the
FYR was currently being conducted and to describe the FYR process. Soon after completion of this
FYR, a notice will be placed in the same newspaper announcing that the Report is complete and is
available to the public. The results of the FYR and the report will be made available online on the Site
Profile Page: www.epa.gov/superfund/syntexfacilitv (see Site Documents & Data, Reports and
Documents, Five-Year Reviews).
Community involvement activities since the last FYR in 2017 have included the publication of fact
sheets, public availability sessions, interviews with local print and television news media, and in-person
discussions with property owners during private well sampling events. The table below summarizes
several of these events.
Table 6: EPA-conducted Community Involvement Activities since the 2017 FYR
Dsile
K\cnl
Description
March 2019
Fact Sheet
Site update on PRP site characterization activities under the
2016 AOC. Environmental covenant established on East Area.
November 2019
Fact Sheet
Announced Public Availability Session and provided site
update.
November 18,
2019
Public Availability
Session
Presentation on recent site characterization activities with
question and answer session.
December 2020
Fact Sheet
Announced the completion of and summarized the EPA's
domestic well survey and sampling program. Included
supplemental information addendum with update on PRP site
characterization activities under the 2016 AOC.
December 2021
Fact Sheet
Provided update on PRP site characterization activities and
announced start of sixth FYR.
20
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December 9,
Public Availability
Session
Presentation on recent site characterization activities, domestic
well sampling results, and announced start of sixth FYR.
2021
During the FYR process, interviews were conducted to document any perceived problems or successes
with the remedy that has been implemented to date. Interviews were conducted with three residents who
live close to the Site and one city official (Laura Hazelwood, Verona City Clerk). Residents and the city
official expressed several concerns:
• The potential for site contaminants, specifically 1,4-dioxane, to impact the quality of water from
their private well;
• Potential health effects from using their private well or consuming wild game taken near the Site;
• Decreased property values;
• The recent flooding of the East Area and potential mobilization of dioxin-contaminated soil;
• The current property owner/operator's compliance with environmental regulations; and
• The potential for waste buried in the capped Trench Area to mobilize.
The complete interviews are included in Appendix H.
Data Review
This data review considered data collected and reported to EPA prior to November 29, 2021.
Soil Characterization
West Area (including Trench Area)
Although the 2016 AOC did not expressly require soil sampling in the West Area, soil sampling was
conducted voluntarily by Syntex as a precaution prior to geotechnical investigation and well installation
activities required by the 2016 AOC. Three West Area roadway segments were found to be impacted by
dioxin, so discrete soil samples were collected from 51 soil borings, at four depth intervals each (Foth,
2017b). Each sample was analyzed for 17 dioxin and furan congeners, and dioxin toxicity equivalence
factors (TEFs) were used to calculate the dioxin toxicity equivalence (TEQ), in terms of 2,3,7,8-TCDD,
for each sample. TCDD was the primary congener contributing to the TEQ in these samples. The TEQ
was generally highest in the samples collected from 0 to 4 inches bgs and decreased with increasing
depth, down to 38 inches bgs. The highest TEQ, 12.1 nanograms/kilogram (ng/kg, or ppt), was found in
the uppermost sample collected from Z-13W-D, located on the roadway northeast of the Trench Area.
In 2019, shallow soil samples were collected from the areas adjacent to the Trench Area roadbeds that
were improved in 2017 (Foth, 2019a). The sampling area was divided into 24 DUs, which together
represent one SDU. Composite shallow soil samples, each comprised of 30 increments, were collected
from each DU in triplicate. Each sample was analyzed for 17 dioxin and furan congeners, and TEFs
were used to calculate the TEQ for each sample. Then, EPCs were calculated as the 95% upper
confidence limit of the mean triplicate TEQ value for each DU. The 24 DU EPCs ranged from 0.007 to
2.3 (J,g/kg (ppb), all of which were less than the site-specific RBC of 18.8 (J,g/kg (ppb) for a short-term
contract worker. Additionally, an EPC of 0.25 (J,g/kg (ppb) was calculated for the entire SDU, which fell
below the site-specific RBC of 3.9 (J,g/kg (ppb) for an adolescent trespasser.
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East Area
The 2016 AOC required collection and analyses of shallow soil samples across the East Area for TCDD
and DLCs in accordance with the East Area Shallow Soil Sampling and Analysis Plan. The Revised East
Area Shallow Soil Sampling, Analysis, and Protectiveness Evaluation Report describes the sampling of
shallow soil in the East Area of the Site, analytical results, and associated protectiveness evaluation
(Foth, 2020c). It characterizes current soil conditions in the East Area and evaluates risks to current and
potential site receptors from TCDD and DLCs. The East Area was divided into four SDUs, based on
current and potential future chronic exposure areas: the Manufacturing Plant Area, the Highly
Maintained Area, the Maintained Area, and the Inaccessible Area. Each SDU was further divided into
DUs to evaluate potential subchronic exposure scenarios. Former remediated areas, including the Burn
Area, Irrigation Area, Lagoon Area, and Slough Area, were also designated as separate DUs. A section
of the Jolly Mill Park was selected to represent a background location. Composite shallow soil samples,
each comprised of 30 increments, were collected from each DU in triplicate. Each sample was analyzed
for 17 dioxin and furan congeners, and TEFs were used to calculate the TEQ for each sample. Then,
EPCs were calculated as the 95% upper confidence limit of the mean triplicate TEQ value for each DU.
The DU EPCs ranged from 0.001 to 11 (J,g/kg (ppb) dioxin TEQ, all of which were less than the site-
specific RBC of 18.8 (J,g/kg (ppb) for a short-term contract worker. Additionally, the EPCs calculated for
the four SDUs ranged from 0.16 to 1.2 (J,g/kg (ppb) dioxin TEQ, each of which was less than the
receptor-specific RBC for the associated SDU. Finally, the EPC for the background location was 0.0074
[j,g/kg (ppb) dioxin TEQ.
Subsequently, after groundwater sampling required by the 2016 AOC detected chlorobenzene and 1,4-
dioxane (discussed below), additional soil sampling was conducted to better characterize potential
source areas for the chlorobenzene and 1,4-dioxane impacts. Using DPT, 21 soil samples were collected
from 0 to 5 ft bgs in the East Area and North Property (Foth, 2020e). Chlorobenzene was detected in
five unsaturated soil samples from the Plant Area (6.4 to 35.7 |ig/kg), but these detections were all well
below the PQLG of 280,000 |ig/kg. 1,4-Dioxane was not detected in any of the 21 soil samples, and all
the reporting limits (< 44.7 to < 490 |ig/kg) were less than the PQLG of 5,300 |ig/kg. The values of the
PQLGs used to analyze the soil samples are equivalent to the EPA's November 2021 residential soil
Regional Screening Levels, based on a non-cancer hazard quotient of 1 and an excess cancer risk of 1E-
06. Further discussion of these chlorobenzene and 1,4-dioxane detections in soil, in comparison with
screening levels protective of groundwater, is provided below.
Groundwater Characterization
West Area/Trench Area
The 2016 AOC required additional well installations and associated geotechnical investigation activities,
as well as groundwater monitoring in the area around the Trench Area. In 2017, Syntex closed seven
pre-existing 2-inch diameter Trench Area bedrock wells because they could not produce enough water
for sampling (Foth, 202le). Per the AOC, these wells were replaced with six 4-inch diameter wells to
improve yield and optimize screened intervals. Two of these replacement wells still did not produce
water and were closed and reinstalled in 2019; they remain unproductive. Drilling cores and electrical
conductivity and hydraulic profiling tool results supported refinement of the conceptual site model and
found that downward percolation of water is impeded by clay-rich soils and may be perched or continue
to follow topography downgradient. Hydraulic testing results indicate a range in hydraulic conductivity
on the order of 10"2 to 10"5 cm/sec.
22
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The AOC included six quarters of groundwater monitoring. These events were conducted from the first
quarter of 2018 to the second quarter of 2019 (Foth, 2019b). Sampling was conducted using
HydraSleeve™ samplers. Groundwater samples were analyzed for VOCs, SVOCs, dioxins and furans,
and two individual compounds, hexachlorophene and 1,4-dioxane. Water level measurements indicated
groundwater flow in the Trench Area is generally to the east and south toward the Spring River. Dioxin
and furan congeners were not detected in any monitoring well, except for OCDD, which was detected at
140 pg/L (parts per quadrillion, or ppq) in one well during one monitoring event. The TEF for OCDD is
0.0003, which means 140 pg/L (ppq) OCDD is equivalent to 0.042 pg/L (ppq) TCDD. This dioxin TEQ
is less than 30 pg/L (ppq), which is the MCL for TCDD. Thus, the concentration of OCDD detected was
not above a level of concern. Hexachlorophene was not detected in any well, with a reporting limit of 10
[j,g/L (PQLG of 6 (J,g/L). 1,4-dioxane was detected in 3 of 4 sampled wells, with concentrations ranging
from 0.25 to 18.9 [j,g/L compared to a RML of 46 (J,g/L. All other VOCs and SVOCs detected were
below their PQLGs.
East Area/North Property
Per the 2016 AOC, three new wells were installed to delineate downgradient contamination in upper
bedrock (Foth, 2020g). Hydraulic testing results indicate that wells EA-221B and EA-223B exhibit
moderate hydraulic conductivity on the order of 10"3 to 10"4 cm/sec, respectively. Well EA-222B
exhibits low hydraulic conductivity on the order of 10"7 to 10"8 cm/sec.
Also per the AOC, six quarters of groundwater monitoring were conducted in the East Area of the Site
from the fourth quarter of 2016 to the first quarter of 2018 (Foth, 2018a). Sampling in alluvial wells,
alluvial and bedrock interface wells, and bedrock wells was conducted using low-flow sampling
procedures. Groundwater samples were analyzed for VOCs, SVOCs, dioxins and furans, and two
individual compounds, hexachlorophene and 1,4-dioxane. Water level measurements indicated
groundwater flow in the East Area is generally to the north within the Spring River valley. TCDD was
not detected in any monitoring well, with a reporting limit of 10 pg/L (ppq). Most VOCs and SVOCs
were not detected. Chlorobenzene was detected in MW-06 above its PQLG of 100 (J,g/L, which is also
its MCL, during the last three sampling events. Hexachlorophene was not detected in any well, with a
reporting limit of 10 (J,g/L. 1,4-dioxane was detected in 17 of 19 wells, primarily in the area north and
downgradient of the manufacturing plant, with concentrations ranging up to 1,730 [j,g/L compared to a
PQLG of 0.46 (J,g/L. An MCL has not been established for 1,4-dioxane.
A DPT investigation was conducted to better characterize potential sources of 1,4-dioxane and
chlorobenzene contamination and delineate the groundwater contamination extent (Foth, 2020e). Work
was conducted in three phases: February 13 through March 20, 2019; July 8 through 25, 2019; and
February 17 through May 1, 2020. The groundwater and soil sampling results are summarized as
follows:
• DPT groundwater sampling was conducted across the East Area and North Property at 96
locations representing the vertical extent of the unconsolidated alluvial aquifer. Of the samples
collected, 91 were analyzed for chlorobenzene and 239 for 1,4-dioxane. The extent of
chlorobenzene in groundwater at or above the PQLG of 100 |ig/L was limited to a small area
near DPT-30. Concentrations of 1,4-dioxane in groundwater at or above the PQLG of 0.46 |ig/L
extend from the Plant Area to the North Property. The highest detected concentrations (up to
13,100 |ig/L at DPT-90) were in near-surface groundwater samples from the Plant Area, and
PQLG exceedances continued to the farthest downgradient locations.
23
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• DPT soil sampling was conducted at 21 locations near areas of high groundwater concentration,
and the soil samples were analyzed for chlorobenzene and 1,4-dioxane. DPT soil samples were
collected near areas of high groundwater concentration to better characterize potential sources.
Chlorobenzene was detected in unsaturated soil samples from the Plant Area (6.4 to 35.7 |ig/kg),
but the concentrations were below the MCL-based soil screening levels for the protection of
groundwater (68 |ig/kg). 1,4-dioxane was not detected in soil for all locations; however, the
reporting limit ranged from 44 to 490 |ig/kg, which is above the risk-based soil screening level
protective of groundwater (0.094 |ig/kg). These soil data did not identify a continuing soil source
for groundwater contamination, although a continuing source of 1,4-dioxane is suggested by
elevated groundwater concentrations, considering that 1,4-dioxane is miscible in water.
Syntex proposed installing and sampling several additional groundwater wells to supplement the
existing monitoring network. This work will be conducted pursuant to the 2016 AOC and is expected to
begin in late 2022, once BCP and Syntex enter into the Order with the EPA to conduct an RI/FS on
OU36.
Through three addenda to the East Area Groundwater Sampling and Analysis Plan, Syntex reestablished
East Area quarterly groundwater monitoring and reporting for 1,4-dioxane and chlorobenzene. These
activities, that resumed in December 2019, will continue at least until the planned additional monitoring
wells are installed, at which time additional monitoring needs will be reassessed. Over the eight most
recent reporting periods from December 2019 to November 2021 (Foth, 2020a,b,d,f; 2021a,b,f,g),
chlorobenzene has been detected in seven wells. Chlorobenzene has been detected consistently in four
wells, with concentrations ranging from 1.2 to 170 (J,g/L, compared with its PQLG (also the MCL) of
100 (J,g/L. Chlorobenzene exceeded the PQLG in six of eight samples collected from MW-06. These
results are also typical of the six quarters completed under the original 2016 AOC, except for MW-07,
which showed an increase from 1.2 [j,g/L to 53.2 [j,g/L from the first to second quarters of 2020, with a
similar decrease the following quarter to 7.4 |ig/L. Similarly, over the same monitoring period, 1,4-
dioxane has been detected consistently in 16 of 20 wells with concentrations ranging from 0.20 to 2,650
[j,g/L, compared to its PQLG of 0.46 |ig/L. Results have been typical of the six quarters completed under
the AOC, except as follows. Three wells showed increases from the first to the second quarter of 2020:
MW-03 from 1.2 to 11.4 ng/L; MW-04 from 4.7 to 183 ng/L; and MW-07 from 6.7 to 27.9 ng/L.
Conversely, MW-21R showed a decrease from 75.2 to 44.7 [j,g/L from the first to the second quarter of
2020. These changes may reflect flooding of the Spring River at the Site, which delayed second quarter
2020 groundwater sampling activities until water level gauging indicated that East Area groundwater
had returned to pre-flood levels and flow was generally to the northwest within the Spring River valley,
consistent with previous events.
Downgradient Private Wells
Responding to community concerns voiced in 2019 and current site conditions, the EPA performed an
extensive survey of domestic wells within two miles of the site boundary, using public records of
domestic wells and property ownership plus information provided by interested domestic well owners
(EPA, 2020). In December 2019 and January 2020, the EPA sampled over 90 domestic wells (serving
residences, a business, and a church) in the area around the Site. The EPA analyzed the water samples
for 1,4-dioxane, as well as other SVOCs, VOCs, dioxins, and DLCs. The EPA also sampled one small
public water supply for 1,4-dioxane. Since the completion of the large scale private well survey and
6 The EPA is currently negotiating an Order with BCP and Syntex to conduct a focused RI/FS on OU 3.
24
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sampling, the EPA performed three sampling events in August 2020, December 2020, and February
2022, focused on a subset of domestic wells nearest the Site in the downgradient direction.
During these multiple domestic well sampling events, none of the domestic wells were found to be
impacted by site-related contaminants above the relevant EPA health-based standard7. However, the
contaminant 1,4-dioxane was detected in three domestic wells. 1,4-dioxane was detected at low levels
consistently in the one domestic well closest to the Site. Also, 1,4-dioxane was detected in two other
domestic wells located nearby, but at very low levels, near the laboratory detection limit.
Spring River Sediment Characterization
In July and August 2017, sampling was performed to characterize the concentrations of dioxin and
DLCs in sediment in the Spring River at the Site, as well as to characterize particle size and carbon
content. The run of the Spring River across the Site, and extending downstream through the North
Property, was subdivided into 24 300-foot-long segments, and a composite sediment sample was
collected from each segment (refer to Figure 6). Composite background sediment samples were also
collected from two sections located upstream of the Site. Dioxin was detected in one of the composite
samples at 1.1 ng/kg, which is just above the detection limit of 1.0 ng/kg. Four DLCs were detected in
several samples below levels of concern. Two of these four DLCs were also found - below levels of
concern - at the background sample location upstream of the Site.
In December 2017, Syntex reported the results of the SLERA. It determined that for the Spring River
section of the Site, the estimated risk to mammals, birds and fish - due to dioxin and DLCs - is within
applicable screening benchmarks (Foth, 2017f).
Site Inspection
The inspection of the Site was conducted on October 5, 2021. In attendance were the Remedial Project
Manager Brian Zurbuchen of the EPA, Chinwe Ndubuka of MoDNR, Michelle Hartman of MoDHSS,
Heather Wood of Tetra Tech, Inc (EPA contractor), Mary Jo Anzia of Syntex, Bob Kick of Foth (Syntex
contractor), and Mark Finney of APTIM (BCP contractor). The purpose of the inspection was to make
field observations to support the assessment of the protectiveness of the remedy. The site inspection
checklist is located in Appendix D, and the site inspection photographs are located in Appendix E.
No significant issues or concerns were observed during the inspection and the components of the
remedy were observed to be in overall good condition. There were a few minor issues including cracks
in the asphalt cover of the T-l Dike Area and Spill Area, vegetation on fencing, ponded water in a
portion of the Lagoon Area, a depression in the vegetative cover in the Burn Area, and two animal
burrows in the Trench Area.
During the EPA's oversight of Syntex's November 2021 groundwater sampling event, the EPA
Remedial Project Manager identified three locations in the East Area where there were several unknown
features (EPA, 2021). These features appeared to be either monitoring well stickups, irrigation piping, or
below-ground valve access pipes. Since the features penetrated to the subsurface, were
uncovered/uncapped, unsecured, and unmarked, they represent a potential conduit for any contaminants
from the surface to shallow groundwater.
7 The RML of 46 |ig/L is the relevant EPA health-based standard for 1,4-dioxane in the groundwater.
25
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In July 2022, Syntex notified the EPA of the actions Syntex and BCP had taken, or actions planned to be
taken, to address several of the issues the EPA identified during the site inspection and during oversight
of the November 2021 groundwater sampling event (Syntex, 2022):
• maintenance of the asphalt cover of the T-l Dike Area and Spill Area has been performed to
repair the cracks;
• maintenance of fencing has been performed to remove vegetation;
• seeded topsoil has been added to fill the depression in the vegetative cover of the Burn Area;
• maintenance of the Trench Area has been performed. The vegetative cap was re-inspected, and
the few potential animal burrows encountered were manually filled in with clean topsoil and
were seeded;
• inspections have been performed and the features observed during the EPA's oversight of
Syntex's November 2021 groundwater sampling event have been identified. The majority are
parts associated with the former irrigation system, as suspected, and the one is a monitoring well.
The PRPs have indicated their willingness to address these features.
V. TECHNICAL ASSESSMENT
QUESTION A: Is the remedy functioning as intended by the decision documents?
Question A Summary:
The remedy was designed to protect human health by preventing unacceptable health risks from
exposure to contaminated soils via excavation and/or capping/vegetative covers, and by ensuring that
contaminant levels in groundwater did not exceed levels of health concern via additional monitoring and
a risk assessment. Although neither the OU 1 nor OU 2 ROD specifies the use of ICs, the OU 2 remedy
was selected under the assumption that the voluntary land use restrictions put in place during the OU 1
remedial action would effectively prevent residential use of the Site.
After the remedy was selected, as first discussed in the fourth FYR, the EPA released updated non-
cancer toxicity values for dioxin in February 2012. In addition, new risk-based levels for some
groundwater contaminants have been established or are lower than at the time of remedy
implementation.
The 2016 AOC required the facility owner to conduct additional sampling and analyses to determine
whether additional actions are necessary. Since the AOC was signed, these additional investigations
have been conducted, as described in the Data Review section. For soil, the studies found that dioxin
concentrations in the East Area (2020c) are less than site-specific RBCs protective of current and
potential future receptors. For the Spring River sediment, TCDD was below detectable levels, with the
exception of one sample where it was just above the detection limit (Foth, 2017e). For groundwater, the
primary historical compounds of concern (e.g., TCDD and hexachlorophene) were not detected over
numerous quarters of sampling. However, some VOC and SVOC compounds were detected, with
chlorobenzene exceeding its MCL of 100 |ig/L and 1,4-dioxane exceeding its RML of 46 |ig/L. The
chlorobenzene MCL exceedance was limited to one on-Site monitoring well. Although not required by
the 2016 AOC, the studies voluntarily performed by Syntex found that dioxin concentrations beneath
and around the roadway within the West Area that leads to the Trench Area (Foth, 2017b; Foth, 2019a)
are also less than site-specific RBC protective of current and potential future receptors. Because the
26
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OU 1 and OU 2 remedies did not address source area soils and site groundwater contaminated with 1,4-
dioxane, a new Operable Unit, OU 3, was established, which is outside the scope of this FYR.
Remedial Action Performance
The remedial actions for OU 1 were successfully performed between 1988 and 1990 in accordance with
the 1988 ROD and Implementation Plan (Syntex, 1988b; 1989). The remedial actions varied slightly
depending on the individual subareas. In summary, verification sampling was performed, and TCDD-
contaminated soils that exceeded 20 ppb were excavated in accordance with the verification sampling
and excavation procedures (Syntex, 1988a). Backfill material was added, and vegetative covers were
established and maintained. A flood control levee (or berm) was constructed around the manufacturing
facilities on the Site, including the Lagoon Area, Spill Area and Irrigation Area.
Access to the production portion of the facility is controlled with a fence and a remotely-controlled gate.
Within the fenced area, metal cables and signs generally mark subsites. Access to the Trench Area is
somewhat restricted by a barbed-wire fence and signage. The Site was placed on Missouri's Registry of
Abandoned or Uncontrolled Hazardous Waste Sites on January 1, 1984.
Since the remedy was selected, the cleanup levels established for excavation and capping were called
into question based on the establishment of a lower non-cancer RfD for dioxin. Using this new dioxin
RfD, together with current exposure parameters and risk assessment methodology, site-specific RBCs
were derived for current and potential future receptors, including plant workers, maintenance workers,
groundskeepers, trespassers, and short-term contract workers. As described in the Data Review section,
dioxin TEQ EPCs in the roadbed and staging areas did not exceed the Short-Term Contract Worker or
Adolescent Trespasser RBCs. Shallow soil sampling in the East Area, required by the 2016 AOC, found
that dioxin TEQ EPCs were less than the applicable receptor-specific RBC for each associated DU and
SDU. Although 1,4-dioxane and chlorobenzene were detected in site groundwater, these compounds
were not detected in site soils at concentrations exceeding residential soil RSLs.
The remedial action for OU 2 was no further action with continued groundwater and surface water
monitoring. The groundwater monitoring was conducted between November 1997 and August 1999.
Syntex continued to voluntarily perform groundwater monitoring on a semi-annual basis from late 2003
to 2005 and then annually thereafter through 2012. Syntex also voluntarily performed groundwater
monitoring of Trench Area monitoring wells between August 2002 and 2012.
The 2016 AOC required additional quarterly groundwater and surface water sampling. The groundwater
monitoring has demonstrated the OU 1 soil remedy is protective as to groundwater with respect to
TCDD and hexachlorophene, since they were not detected in any site well. Characterization of the
extent of 1,4-dioxane contamination currently continues under the 2016 AOC. However, the 1,4-dioxane
concentrations are indicative of an ongoing release by the current property owner. Since Syntex and
BCP both manufactured similar products using similar processes; 1,4-dioxane is an unwanted byproduct
during the processes; and historic 1,4-dioxane monitoring (during Syntex ownership/operation) had
detection limits above the concentrations of interest; Syntex may have also released 1,4-dioxane during
its operations. In January 2022, the EPA established OU 3 and defined it to be the source area soils and
site groundwater contaminated with 1,4-dioxane. In February 2022, the EPA initiated negotiations on an
Order for RI/FS with the current property owner, BCP and Syntex. OU 3 is outside the scope of this
FYR.
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System Operations/O&M
The current remedy does not include any active treatment systems. Active portions of the BCP facility
used for daily manufacturing and related activities are paved to limit plant worker and visitor exposures
to soil. BCP is responsible for maintaining the pavement and vegetative caps at their facility and
throughout the East Area. Syntex is responsible for maintaining the Trench Area caps in the West Area.
Annual MoDNR registry inspection reports found these caps in satisfactory condition and well
maintained (MoDNR, 2018a,b; 2019a; 2021 a,b).
The 2016 AOC required reassessment of the groundwater monitoring network and six quarters of
monitoring. The 2016 AOC was amended to include additional quarterly groundwater monitoring and
supplemental groundwater investigations. This work is nearing completion. Monitoring wells have been
inspected and repaired as necessary at the time of sampling. Based on groundwater sampling results, no
additional remedial actions are warranted for OU 1 or OU 2.
Following the flooding events of May 17, 18, and 27, 2021, the condition of the capped and asphalt-
covered remediated areas, as well as the East Area wells were inspected and assessed. There were no
weather-related impacts to the areas or the wells. However, the BCP perimeter fence was damaged by
flooding and required replacement. The flooding events indicate there is a need to evaluate whether
modification of the flood berm is necessary to prevent flooding of the remediated areas within the BCP
facility, and to implement modifications as necessary to address. This has been identified as an issue that
potentially affects future protectiveness of the OU 1 remedy.
During the FYR site inspection and EPA oversight activities, the EPA encountered what appeared to be
an old monitoring well about 90 yards east of Spring River (EPA, 2021b). The well, which was labelled
OW-4, had no plug sealing it, and standing water was visible in the 6-inch diameter PVC casing. There
were two additional locations in the East Area where remnants of what appeared to be former irrigation
piping was protruding from the ground. These were unmarked, uncapped, and unsecured. There were a
few other issues, including cracks in the asphalt cover of the T-l Dike and Spill Areas, vegetation on
fencing, ponded water in a portion of the Lagoon Area, a depression in the vegetative cover in the Burn
Area, and two animal burrows in the Trench Area. These have been identified as issues in this FYR that
potentially affect the future protectiveness of the OU 1 remedy. Other than the issues identified above,
the components of the remedy were observed to be in overall good condition.
As noted earlier in this FYR, Syntex and BCP have been performing O&M activities, some of which
were described in general terms in the Implementation Plan, as amended. Those activities have generally
been sufficient, with a few exceptions that were documented during the FYR site inspection and EPA
field oversight activities. However, neither an O&M Plan nor an O&M Manual were ever submitted and
approved by the EPA. It is noted that in 2012, a Trench Area Monitoring and Inspection Plan was
submitted and the EPA provided comments, but a final version of the plan was never submitted or
approved. Additionally, the O&M activities did not address O&M of the flood berm. The lack of an
O&M Plan and O&M Manual has been identified as an issue in this FYR.
Implementation of Institutional Controls and Other Measures
Though not required by the OU 1 or OU 2 RODs, ICs have been established at the Site, and a number of
other measures are in place to prevent unauthorized access to certain areas.
28
-------
In January 1984, the Site was placed on the Missouri Registry of Confirmed Abandoned or Uncontrolled
Hazardous Waste Disposal Sites. As requested by Syntex in 2002, the Trench Area is listed separately
from the rest of the Site as Syntex-Verona (West). The Fiscal Year 2020 Registry report lists Syntex-
Verona (West) as Class 3: Sites not presenting a significant threat to public health or the environment
(MoDNR, 2020). Syntex-Verona (East) is listed as Class 4: Sites that have been properly closed but
require continued management.
Additionally, the deed for the Syntex-DuCoa property transaction contains a restrictive covenant that
limits the East Area to industrial uses (TEA, 2016). This deed, with restrictive covenant, is recorded in
the office of the Lawrence County Recorder of Deeds. The restrictions on use run with the land and are
binding upon future owners of the property.
Although institutional controls for soils and groundwater were not required in the RODs, institutional
controls were needed to ensure soils at the Site are not disturbed until they have been characterized for
dioxin and DLCs, to ensure future construction at the Site is done in a manner protective of workers, and
to restrict use of groundwater. On January 9, 2019, an EC on the East Area of the Site went into effect,
providing Activity and Use Limitations (AULs) including land use restrictions, well installation and
groundwater use restrictions, closure of Empire District Well #3, and maintenance of a pavement cover
in portions of the property. These AULs are enforceable and run with the land.
The 2019 EC has been effective in preventing exposures to potentially contaminated soils and
groundwater in the East Area in the short time since it was put in place. Some of the activities performed
to comply with the EC are as follows:
• BCP submitted annual compliance reports for 2019-2021 (EW, 2021; 2022) that document
activities performed to comply with the 2019 EC. There were three reported water line ruptures:
February 14, 2019; September 12, 2019; and November 4, 2019. BCP notified the EPA within
48 hours of each event, repaired the water line, and returned the excavated soils to their original
location and depth.
• On June 24, 2019, the Empire District Well #3, located immediately north of the East Area, was
plugged in accordance with the requirements in the 2019 EC and MoDNR standards for well
plugging (EW, 2019)
• In 2020, BCP sampled soils for dioxin and DLCs in an area of planned building expansion to
determine whether the EPCs were less than the RBCs for construction workers and plant
workers. The EPCs were well below the RBC, and BCP began construction in December 2020.
• On May 17 and 18, 2021, the BCP perimeter fence was extensively damaged by flooding. BCP
notified the EPA and verified that the fence reconstruction fell under the emergency exception
pursuant to Section 2. A.iii of the 2018 EC (EPA, 2021a). Fence reconstruction was completed
September 30, 2021.
On April 13, 2022, ECs for the West Area and the North Property went into effect. These are
enforceable and run with the land. For the West Area, AULs include maintenance of the existing Trench
Area cap, fence (to include signage), and survey markers; establishment/maintenance of a boundary
fence with signage; restrictions on groundwater use or well installation; and building restrictions. For the
North Property, AULs include restrictions on groundwater use, drilling, well installation, and any other
interference with environmental investigation and remediation.
As noted above, site access is restricted. Vehicles must access the Site through BCP-owned property,
which is fenced and subject to 24-hour security. The only access road into the West Area and leading to
29
-------
the Trench Area is cabled and locked. The Trench Area is capped and fenced with five-strand barbed
wire with warning signs stating: "No Trespassing - Restricted Area." A perimeter fence surrounds the
entire Site and BCP property combined. The North Property is owned and controlled by Syntex. North
Property access is restricted by additional fencing, and Syntex has closed the private well on the
property.
The historic ICs described above have been effective in preventing exposures since the last FYR. With
the additional ICs that went into effect in April 2022, the entire Site is currently covered. Together, these
ICs are expected to be effective in preventing future exposure.
QUESTION B: Are the exposure assumptions, toxicity data, cleanup levels, and remedial action
objectives (RAOs) used at the time of the remedy selection still valid?
Question B Summary:
There have been many changes in standardized risk assessment methodology, default exposure
assumptions, and toxicity values since the time of remedy selection. However, the change with the
greatest potential to impact remedy protectiveness has been the new non-cancer RfD of 0.7
picograms/kilogram-day dioxin that was finalized in 2012. During the Fourth FYR in 2012, comparison
of site cleanup goals with the industrial soil RSL that was based on the new dioxin RfD and standard
default exposure parameters suggested that the remedy might no longer be considered protective.
Pursuant to the 2016 AOC and as described in the Data Review section above, additional investigations
were conducted to characterize current soil, groundwater, surface water, and sediment conditions. As
part of these efforts, site-specific RBCs were derived for current and potential future receptors, including
plant workers, maintenance workers, groundskeepers, trespassers, and short-term contract workers,
using the new dioxin RfD, together with current exposure parameters and risk assessment methodology.
For soil, the studies found that dioxin concentrations in the East Area (Foth, 2020c) are less than site-
specific RBCs protective of current and potential future receptors in each of these areas. Additional
recent studies of the West Area roadway segments (Foth, 2017b) and Trench Area roadways (Foth,
2019a), voluntarily conducted by Syntex, also found dioxin concentrations beneath and along the
roadway in the West Area leading to the Trench Area are less than site-specific RBCs, and therefore
protective of current and potential future receptors. For groundwater, no historical compounds of
concern (e.g., TCDD and hexachlorophene) were detected over numerous quarters of sampling.
However, some VOC and SVOC compounds were detected, with chlorobenzene and 1,4-dioxane
exceeding PQLGs reflective of current toxicity values, exposure parameters, and risk assessment
methodology. Chlorobenzene detections in groundwater were limited to one on-site well. Monitoring
and off-site delineation of 1,4-dioxane in groundwater continue. During additional risk characterization
in the Spring River, the sediment sample results showed that TCDD was only detected in one DU at
concentrations slightly above the detection limit. Overall, the SLERA analytical results demonstrated
limited potential impacts to the Spring River Study Area from TCDD (TEA, 2017).
Changes in Standards and TBCs
Since the 1988 OU 1 ROD and 1993 OU 2 ROD, there have been many changes in standards and TBCs.
These changes are discussed in greater detail in the Fourth and Fifth FYRs for this Site and were the
basis for requiring supplemental investigations to evaluate the continued protectiveness of the remedy.
The 2016 AOC work plans and subsidiary work plans included an expanded groundwater analyte list,
30
-------
and all soil, sediment, groundwater, and surface water concentrations were evaluated using current
standards and TBCs.
Changes in Toxicity and Other Contaminant Characteristics
Since the 1988 ROD and 1993 OU 2 ROD, there have been many changes in toxicity values, most
notably the 2012 dioxin RfD. These changes are discussed in greater detail in the Fourth and Fifth FYRs
for this Site and were the basis for requiring supplemental investigations to evaluate the continued
protectiveness of the remedy. All data collected under the 2016 AOC work plans and subsidiary work
plans were evaluated using current cancer and non-cancer toxicity values.
Changes in Risk Assessment Methods
Since the 1988 ROD and 1993 OU 2 ROD, many currently used risk assessment guidance documents
have been published, including Risk Assessment Guidance for Superfund Parts A, D, E, and F, as well
as the Ecological Risk Assessment Guidance for Superfund. The 2016 AOC work plans and subsidiary
work plans used to determine whether the remedy remains protective were developed based on current
risk assessment methodology.
Changes in Exposure Pathways
Due to changes in risk assessment methodology, the EPA now evaluates a greater number of exposure
pathways. The 2016 AOC work plans and subsidiary work plans led to the development of site-specific
RBCs reflective of current and potential future receptors. The exposure parameters used to develop these
site-specific RBCs are a combination of current default values (e.g., body weight, soil ingestion rate)
and actual site practices (e.g., exposure frequency for the maintenance worker).
QUESTION C : Has any other information come to light that could call into question the protectiveness
of the remedy?
No additional information has come to light that could call into question the protectiveness of the
remedy.
To the best of our knowledge, during the FYR period no impacts from climate change have occurred
that affect the protectiveness of the remedy. Potentially, future increases in precipitation could increase
contaminant leaching from soil to groundwater, elevate groundwater levels to contact contaminated
vadose zone soils, or affect transport of groundwater contamination plumes. Similarly, future flooding
could facilitate the migration of impacted soil or suspended sediment to the Spring River or impact the
integrity of vegetative caps.
VI. ISSUES/RECOMMENDATIONS
Issues/Recommendations
()l (s) without Issues/Reconinieiuhlions Identified in (ho l i\e-Ye:ir Rexiew:
OU(s): none
31
-------
Issues and Recommendations Identified in (lie l"i\o-'N onr Kc\ic\\:
OU(s): 1
Issue Category: Remedy Performance
Issue: Flood berm surrounding the BCP facility is insufficient to prevent
flooding.
Recommendation: Review the existing flood berm, evaluate whether
modification is necessary to prevent flooding of the BCP facility, and implement
modifications as necessary to address. Note that recent flooding demonstrated the
existing flood berm was not effective and several feet of water flooded the plant
and several OU 1 remediated areas. This flood event did not impact the OU 1
remedy. However, it is possible that a future flooding event has the potential to
impact remedy performance by disturbing the vegetative or asphalt covers of
remediated areas and mobilizing dioxin contaminated soils.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA
9/30/2024
OU(s): 1
Issue Category: Operations and Maintenance
Issue: Surface topography is preventing proper drainage in an approximately
9,300-square-foot area of the former Lagoon Area.
Recommendation: Propose and submit a plan to address the issue to the EPA and
MoDNR for review. Implement the plan once it is approved.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA
3/31/2023
OU(s): 1
Issue Category: Operations and Maintenance
Issue: There is currently no O&M Manual or O&M Plan for the OU 1 remedy.
Recommendation: Propose and submit an O&M Manual and O&M Plan to the
EPA and MoDNR for review. Implement the plan once it is approved.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA
3/31/2023
OU(s): 2
Issue Category: Other
Issue: Several uncapped and unsecured former irrigation pipes and a monitoring
well are present on the Site.
32
-------
Recommendation: The features should be identified to determine their
construction, then be labeled, capped, and secured to prevent the conduits from
being potential conduits to the groundwater. If the features are wells, and
determined to be damaged, improperly constructed, or no longer needed or
appropriate for site monitoring purposes, they should be properly abandoned in
accordance with MoDNR requirements.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA
3/31/2023
OTHER FTNDTNGS
In addition, the following are observations and recommendations that were identified during the FYR
that do not affect current and/or future remedy protectiveness for OU 1 or OU 2:
• The source and extent of the 1,4-dioxane-contaminated groundwater plume present in the
shallow alluvial aquifer and shallow bedrock, and designated by the EPA as OU 3, has not been
determined. Pursuant to the 2022 Administrative Order on Consent for OU 3 that is currently
being negotiated, Syntex and BCP will conduct investigations to identify the source and extent of
the 1,4-dioxane-contaminated groundwater plume, perform a human health risk assessment, and
if necessary, evaluate remedial alternatives.
VII. PROTECTIVENESS STATEMENT
Protectiveness Statement(s)
Operable Unit: Protectiveness Determination:
OU 1 Short-term Protective
Protectiveness Statement: The remedy at OU 1 currently protects human health and the environment
because the shallow soil and Spring River sediment characterization activities and protectiveness
evaluations performed between 2016 and 2021 demonstrated that the remedy is protective for its
current use; and institutional controls are in place to ensure the current use remains unchanged and to
ensure the soils are not disturbed without EPA approval. However, for the remedy to be protective in
the long-term, the following actions need to be taken to ensure protectiveness: the flood berm needs to
be assessed and, if necessary, modified to prevent contaminated soils within the berm area from being
mobilized; the surface topography of the Lagoon Area needs to be assessed and modified to prevent
ponding on the vegetative cover; and operation and maintenance procedures and plans need to be
developed and implemented to ensure the remedy is properly maintained.
Operable Unit: Protectiveness Determination:
OU 2 Protective
Protectiveness Statement: The remedy at OU 2 is protective of human health and the environment.
33
-------
VIII. NEXT REVIEW
The next FYR report for the Syntex Facility Superfund Site is required five years from the completion
date of this review.
34
-------
APPENDIX A
FIGURES
-------
LEGEND
Roads ^—Spring River
Building Outline —¦¦ Site Boundary
X — Fence L ] North Property
Railroad
NOTES:
1. Coordinate System: M083-WF
#Foth
This drawing is neither a legally recorded map nor a survey and is
not intended to be used as one. This drawing is a compilation of
records, information and data used for reference purposes only.
FIGURE 1
FACILITY LOCATION MAP
SYNTEX FACILITY SUPERFUND SITE
VERONA, MISSOURI
Date: SEPTEMBER 2020| Revision Date:
Drawn By: DAT | Checked By: RMK | Scope: 15S239
-------
-------
Exposure Area and Receptor
Risk-Based
Concentration
(Kg/kg)
Exposure Point
Concentration
(ug/kg)
Chronic Exposure Scenarios
Plant Area SDU
Receptor: Plant Worker
1.3
0.69
Highly Maintained Area SDU
Receptor: Maintenance Worker
3.6
1.2
Maintained Area SDU
Receptor: Groundskeeper
4.6
0.19
Inaccessible Area SDU
Receptor: Trespasser
8.0
0.16
Subchronic Exposure Scenario
All East Area DUs
Receptor: Short Term Contract Woiker
18.8
See individual DUs
on map
LEGEND
Super Decision Units Building Outline
~ Highly Maintained Area Fence
I I Inaccessible Area Railroad
I I Maintained Area —— River
I I Plant Area £17! Site Boundary
This drawing is neither a legally recorded map nor a survey and is
not intended to be used as one. This drawing is a compilation of
records, information and data used for reference purposes only.
NOTES:
1. Coordinate System: M083-WF
2. Units: ug/kg
#Foth j
Figure 3
DECISION UNIT TEQ VALUES AND
SUPER DECISION UNIT EPC VALUES
SYNTEX FACILITY SUPERFUND SITE
VERONA, MISSOURI
Date: MARCH 2018
Revision Date:
Drawn By:
DAT | Checked By: RMK | Scope: 15S239
-------
_—
" rlv.T-fi »
West
Area
# EA-223B
£ MW-15B
MW-15A
MW-16 MW-16B
# # #
¦#• mJLo
! r/w u |fi
# Mw-n *
D°'HDD
floo.to(
~ .Jl
r
131
/ }\ mx-c2
! /
East
Area
kieiNo
* Monitoring Well Location
—"Building Outline
x ¦ Fence
Railroad
River
l^^Sife Boundary
MW-14J> ^ MW?14
\ MW-01
* ^ IS-6 ¦
'k.
s
K¥ti
Top*k,i!fc» Kaa£3« City
\
I
C% SUoul^-
I
lv
Sprit
Verona, Missouri
I
NOTES:
1. Coordinate System: M083-WF
" Foth
This drawing is neither a legally recorded map nor a survey and .s
no! intended to be used as one. This drawing is a compilation of
records, information and data used for reference purposes only
250 500
Feet
Figure 4
FACILITY LOCATION MAP
SYNTEX FACILITY SUPERFUND SITE
VERONA, MISSOURI
Date APRIL 2018
Revision Date:
Drawn By: DAT Checked By: RMK Scope: 15S239
-------
-------
Lawrence County, Missouri
Spring River SDU (7,000 feet)
' Spring River Decision Unit (DU) Boundary
Figure 6
DECISION UNIT LOCATIONS
Verona, Missouri
Syntex Agribusiness, Inc.
Spring River
Screening Level Ecological Risk Assessment
SYN-16.0
M. Mohler
D. Boudreaux
Noted
October 2017
October 2017
-------
APPENDIX B
TABLES OF ANALYTICAL RESULTS
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6-13122016
IS-6-13022017
IS-6-15052017
IS-6-14082017
IS-6-13112017
IS-6-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
< 0.070 U
< 0.07 U
< 0.07 U
< 0.07 U
< 0.07 U
< 0.07 U
UJ
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.2 U
< 10.4U
< 10 U
< 10 U
< 10.4U
< 10.6 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
6.5
u
< 5 U
u
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.10 11
<0.1 U
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
1 of 98
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6-13122016
IS-6-13022017
IS-6-15052017
IS-6-14082017
IS-6-13112017
IS-6-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5 n
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
<0.10 11
<0.1 U
<0.1 U
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butyl benzene
135-98-8
2000"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.10 11
<0.1 u
<0.1 u
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.2 U
< 0.2 U
< 1.5 U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 U
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 U
< 1 U
2 of 98
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6-13122016
IS-6-13022017
IS-6-15052017
IS-6-14082017
IS-6-13112017
IS-6-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c'a
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c a
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 "
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.3 U
< 2.2 U
< 2 U
< 2 U
<2.1 U
< 2 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 28.2 U
< 27.8 U
< 25.1 U
< 25.3 U
< 26.7 U
< 25.3 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
co
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
3 of 98
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6-13122016
IS-6-13022017
IS-6-15052017
IS-6-14082017
IS-6-13112017
IS-6-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.5 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
4 of 98
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
Sample ID
IS-6-13122016
IS-6-13022017
IS-6-15052017
IS-6-14082017
IS-6-13112017
IS-6-19022018
Date
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
5 of 98
-------
Table 1
East Area Groundwater Data Summary (IS-6)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
IS-6
Sample ID
IS-6-05122019
IS-6-20022020
IS-6-11062020
IS-6-24082020
IS-6-16112020
IS-6-08032021
IS-6-24052021
IS-6-17082021
IS-6-01112021
Date
12/5/2019
2/20/2020
6/11/2020
8/24/2020
11/16/2020
3/8/2021
5/24/2021
8/17/2021
11/1/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
< 0.20 U
< 0.20 U
< 0.21 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
6 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-02)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-2-13122016
MW-2-13022017
MW-2-15052017
MW-2-14082017
MW-2-13112017
MW-2-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
< 0.070 U
< 0.07 U
< 0.07 U
< 0.07 U
< 0.07 U
< 0.07 U
UJ
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.5 U
< 10.4 U
< 10 U
< 10 U
< 10.8 U
< 10.5 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
< 0.1 U
< 0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
< 0.1 U
< 0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
< 0.1 U
< 0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2 U
< 2 U
< 5U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
6.6
U
< 5U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
< 0.1 U
< 0.1 U
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
< 0.1 U
< 0.1 u
< 0.1 u
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
7 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-02)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-2-13122016
MW-2-13022017
MW-2-15052017
MW-2-14082017
MW-2-13112017
MW-2-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
< 0.1 U
< 0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 5U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
< 0.1 u
< 0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.2 U
< 0.2 U
< 1.5U
< 1.5U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 U
< 1.1 U
8 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-02)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-2-13122016
MW-2-13022017
MW-2-15052017
MW-2-14082017
MW-2-13112017
MW-2-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.4 U
< 2 U
< 2.1 U
< 2 U
< 2.2 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.8 U
< 29.9 U
< 24.8 U
< 25.6 U
< 25.4 U
< 26.9 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
9 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-02)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-2-13122016
MW-2-13022017
MW-2-15052017
MW-2-14082017
MW-2-13112017
MW-2-19022018
12/13/2016
2/13/2017
5/15/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.2 U
< 0.99 U
< 1 u
< 1 u
< 1.1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 3 U
< 2.5 U
< 2.6 U
< 2.5 U
< 2.7 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.2 U
< 0.99 U
< 1 U
< 1 U
< 1.1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
1 0 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-02)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
MW-02
Sample ID
MW-2-05122019
MW-2-20022020
MW-2-11062020
MW-2-24082020
MW-2-27082020
MW-2-17112020
MW-2-09032021
MW-2-24052021
MW-2-17082021
MW-2-02112021
Date
12/5/2019
2/20/2020
6/11/2020
8/24/2020
8/27/2020
11/17/2020
3/9/2021
5/24/2021
8/17/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46c
ug/L
< 0.20 U
< 0.20 U
< 0.21 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.21 U
< 0.20 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
11 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-03)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-3-14122016
MW-3-14022017
MW-3-16052017
MW-3-15082017
MW-3-15112017
MW-3-20022018
12/14/2016
2/14/2017
5/16/2017
8/15/2017
11/15/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.93
0.75
1.6
1.3
1.7
1.5
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.8 U
< 10.3 U
< 10.3 U
< 10 U
< 10.8 U
< 10.6 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
12.7
U
< 5 U
< 5 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
12 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-03)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-3-14122016
MW-3-14022017
MW-3-16052017
MW-3-15082017
MW-3-15112017
MW-3-20022018
12/14/2016
2/14/2017
5/16/2017
8/15/2017
11/15/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.2 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
13 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-03)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-3-14122016
MW-3-14022017
MW-3-16052017
MW-3-15082017
MW-3-15112017
MW-3-20022018
12/14/2016
2/14/2017
5/16/2017
8/15/2017
11/15/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.2 U
<2.1 U
<2.1 U
<2.1 U
< 2 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 26.9 U
< 27.6 U
< 26.6 U
< 26.6 U
< 25.9 U
< 25 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
14 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-03)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-3-14122016
MW-3-14022017
MW-3-16052017
MW-3-15082017
MW-3-15112017
MW-3-20022018
12/14/2016
2/14/2017
5/16/2017
8/15/2017
11/15/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.7 U
< 2.8 U
< 2.7 U
< 2.7 U
< 2.6 U
< 2.5 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
1 5 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-03)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
MW-03
Sample ID
MW-3-09122019
MW-3-24022020
MW-3-15062020
MW-3-25082020
MW-3-17112020
MW-3-09032021
MW-3-04062021
MW-3-17082021
MW-3-04112021
Date
12/9/2019
2/24/2020
6/15/2020
8/25/2020
11/17/2020
3/9/2021
6/4/2021
8/17/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
1.0
1.0
5.9
2.1
1.4
1.2
11.4
2.1
2.3
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
1 6 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-04)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-4-14122016
MW-4-14022017
MW-4-16052017
MW-4-17082017
MW-4-16112017
MW-4-20022018
12/14/2016
2/14/2017
5/16/2017
8/17/2017
11/16/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.54
0.97
374
J
8.7
0.25
3.9
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.5 U
UJ
< 10.4U
< 10.0 U
< 10 U
< 10.6 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1 u
<0.1 u
0.13
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
13.4
U
< 5 U
< 5 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1 U
<0.1 U
0.20
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 U
<0.1 u
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1 u
<0.1 U
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
17 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-04)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-4-14122016
MW-4-14022017
MW-4-16052017
MW-4-17082017
MW-4-16112017
MW-4-20022018
12/14/2016
2/14/2017
5/16/2017
8/17/2017
11/16/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1 U
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1 u
<0.1 u
9.6
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1 u
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.2 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
1 8 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-04)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-4-14122016
MW-4-14022017
MW-4-16052017
MW-4-17082017
MW-4-16112017
MW-4-20022018
12/14/2016
2/14/2017
5/16/2017
8/17/2017
11/16/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.2 U
<2.1 U
<2.1 U
<2.1 U
< 2 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.6 U
< 27.6 U
< 26.3 U
< 25.6 U
< 25.9 U
< 25.5 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
19 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-04)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-4-14122016
MW-4-14022017
MW-4-16052017
MW-4-17082017
MW-4-16112017
MW-4-20022018
12/14/2016
2/14/2017
5/16/2017
8/17/2017
11/16/2017
2/20/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
20 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-04)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
MW-04
Sample ID
MW-4-09122019
MW-4-12122019
MW-4-25022020
MW-4-15062020
MW-4-26082020
MW-4-18112020
MW-4-10032021
MW-4-04062021
MW-4-19082021
MW-4-02112021
Date
12/9/2019
12/12/2019
2/25/2020
6/15/2020
8/26/2020
11/18/2020
3/10/2021
6/4/2021
8/19/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
12.6
22.7
26.3
0.46
0.27
4.7
183
0.73
240
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
21 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-05)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-5-20122016
MW-5-17022017
MW-5-18052017
MW-5-16082017
MW-5-17112017
MW-5-22022018
12/20/2016
2/17/2017
5/18/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
409
260
268
J-
136
J
297
255
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 11.0 U
< 10 U
< 10.2 U
< 10 U
< 10.5 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
< 0.1 U
UJ
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
< 0.1 U
UJ
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
< 0.1 U
UJ
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
UJ
< 0.50 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
< 0.1 u
0.14
0.13
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
UJ
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 U
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
5.5
U
< 5U
U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
< 0.1 U
UJ
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
< 0.1 U
UJ
< 0.10 u
< 0.1 U
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
22 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-05)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-5-20122016
MW-5-17022017
MW-5-18052017
MW-5-16082017
MW-5-17112017
MW-5-22022018
12/20/2016
2/17/2017
5/18/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 5U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
UJ
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butyl benzene
135-98-8
2000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
< 0.1 u
UJ
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 1.5U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1 U
23 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-05)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-5-20122016
MW-5-17022017
MW-5-18052017
MW-5-16082017
MW-5-17112017
MW-5-22022018
12/20/2016
2/17/2017
5/18/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.2 U
< 2.2 U
< 2.1 U
< 2.1 U
<2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 "'a
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
CO
CO
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.6 U
< 28.1 U
< 27.5 U
< 25.8 U
< 25.8 U
< 26 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
CO
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000 "
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
24 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-05)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-5-20122016
MW-5-17022017
MW-5-18052017
MW-5-16082017
MW-5-17112017
MW-5-22022018
12/20/2016
2/17/2017
5/18/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.8 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 26 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
25 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-05)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
MW-05
Sample ID
MW-5-11122019
MW-5-25022020
MW-5-16062020
MW-5-26082020
MW-5-18112020
MW-5-22032021
MW-5-26052021
MW-5-18082021
MW-5-03112021
Date
12/11/2019
2/25/2020
6/16/2020
8/26/2020
11/18/2020
3/22/2021
5/26/2021
8/18/2021
11/3/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
96.0
103
73.6
76.0
123
69.6
85.4
69.1
44.9
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
26 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
Sample ID
MW-6-
DUP-02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP-02-
22122016
22122016
16022017
16022017
18052017
18052017
17082017
17082017
17112017
17112017
23022018
23022018
Date
12/22/2016
12/22/2016
2/16/2017
2/16/2017
5/18/2017
5/18/2017
8/17/2017
8/17/2017
11/17/2017
11/17/2017
2/23/2018
2/23/2018
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Project
Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
632
J
635
710
J
648
556
J
643
338
J-
315
J-
337
J
353
524
495
EPA 604.1
Hexachlorophene
70-30-4
6 n,a
ug/L
< 10.9 U
< 10.5 U
< 13 U
< 10U
< 10.2U
< 10.1 U
< 10 U
< 10U
< 10.5 U
< 11 U
< 10 U
< 11 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
UJ
< 0.5 U
EPA 8260B
1,2,3-Trichlorobenzene
87-61-6
7"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-Trichloropropane
96-18-4
0.075 c'a
ug/L
< 0.4 U
< 0.4 U
< 0.1 u
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trichlorobenzene
120-82-1
70
ug/L
< 0.4 U
< 0.4 U
< 0.1 u
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
< 0.4 U
< 0.4 U
0.71
0.69
1
1
0.72
0.73
0.56
< 0.5 U
0.88
0.78
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 2U
< 2 U
< 2U
< 2 U
< 2U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.4 U
< 0.4 U
0.35
0.33
0.3
0.28
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
< 0.4 U
< 0.4 U
0.12
0.11
0.18
0.17
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
UJ
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
2
2
2.2
2.2
1.1
1.1
0.87
0.92
1
0.98
1.6
1.6
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
5.1
5
6.7
6.6
6.4
6.1
5.6
5.8
6.9
6.9
10.9
10.3
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 2U
< 2 U
< 2U
< 2 U
< 2U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600 "
ug/L
< 8 U
< 8 U
3.3
3.4
< 2.0 U
< 2.0 U
< 5U
< 5U
< 5U
< 5U
< 5U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
00
CO
ug/L
< 8 U
< 8 U
< 2U
< 2 U
< 2.0 U
< 2.0 U
< 5U
< 5U
< 5U
< 5U
< 5U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300 "
ug/L
< 8 U
< 8 U
< 2U
< 2 U
< 2.0 U
< 2.0 U
< 5U
< 5U
< 5U
< 5U
< 5U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 10 U
< 10U
< 2.5 U
< 2.5 U
13.6
U
24.5
U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
EPA 8260B
Benzene
71-43-2
5
ug/L
1.1
1.2
1.6
1.7
2.7
2.7
2.9
2.8
2.8
2.7
3.6
3.5
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
CO
CO
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 2U
< 2 U
< 2U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 10 U
< 10U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 20 U
< 20 U
< 20 U
< 5U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
UJ
< 0.5 U
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.4 U
UJ
88
J
94.6
93.5
91.4
89.7
119
J-
118
114
113
157
157
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 2U
< 2 U
< 2U
< 2 U
< 1 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
27 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-6-
22122016
DUP-02-
22122016
MW-6-
16022017
MW-DUP02-
16022017
MW-6-
18052017
MW-DUP02-
18052017
MW-6-
17082017
MW-DUP02-
17082017
MW-6-
17112017
MW-DUP02-
17112017
MW-6-
23022018
MW-DUP-02-
23022018
12/22/2016
12/22/2016
2/16/2017
2/16/2017
5/18/2017
5/18/2017
8/17/2017
8/17/2017
11/17/2017
11/17/2017
2/23/2018
2/23/2018
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
EPA 8260B
Dibromomethane
74-95-3
CO
CO
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.4 U
< 0.4 U
< 0.1 u
< 0.1 u
< 0.10 u
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
< 0.4 U
< 0.4 U
0.72
0.73
1.4
1.4
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200 "
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
0.65
0.65
0.77
0.75
0.7
0.68
0.6
0.61
0.65
0.6
1.1
J
1
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 5U
< 5U
< 5U
< 5U
< 1 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 2U
< 2 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butylbenzene
104-51-8
1000 "
ug/L
0.44
0.46
0.5
0.5
0.69
0.72
0.67
0.59
0.61
0.57
1
0.99
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
< 0.4 U
< 0.4 U
0.3
0.29
0.3
0.29
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
< 0.4 U
< 0.4 U
0.41
0.38
0.1
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000 "
ug/L
0.41
0.41
0.51
0.5
0.47
0.47
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
0.53
0.51
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butylbenzene
98-06-6
690"
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
UJ
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
< 0.4 U
< 0.4 U
0.47
0.47
0.38
0.39
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
0.86
0.89
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.4 U
< 0.4 U
< 0.1 U
< 0.1 U
< 0.10 U
<0.10U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
7.7
7.9
18.1
17.9
30.6
29.6
9.6
9.5
6.2
5.2
12.1
11.6
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2,4,6-Trichlorophenol
88-06-2
4.1 c
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46 "
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39 "
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24c,a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 "
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
1.3
1.3
< 1 U
1.1
1.2
1.1
EPA 8270D
2-Methylnaphthalene
91-57-6
CO
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.1 U
< 2.2 U
< 2.2 U
< 2.0 U
< 2.0 U
< 2.2 U
< 2.1 U
< 2.1 U
< 2.1 U
< 2.2 U
< 2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 ca
ug/L
< 1.1 U
UJ
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
UJ
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 n,a
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400 "
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chloroaniline
106-47-8
37c,a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Nitroaniline
100-01-6
00
CO
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
28 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
Sample ID
MW-6-
DUP-02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP-02-
22122016
22122016
16022017
16022017
18052017
18052017
17082017
17082017
17112017
17112017
23022018
23022018
Date
12/22/2016
12/22/2016
2/16/2017
2/16/2017
5/18/2017
5/18/2017
8/17/2017
8/17/2017
11/17/2017
11/17/2017
2/23/2018
2/23/2018
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Project
Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1.1 u
< 1.0U
< 1.0 u
< 1.1 u
< 1 u
< 1 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800 "
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1.2ca
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzoic Acid
65-85-0
75000"
ug/L
< 27.6 U
< 25.6 U
< 26.9 U
< 27 U
< 25.4 U
< 25.4 U
< 26.9 U
< 26 U
< 26 U
< 26 U
< 27.5 U
< 26.3 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014c
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Chrysene
218-01-9
CO
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 c'a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c'a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c'a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Isophorone
78-59-1
00
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Nitrobenzene
98-95-3
13 ca
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 u
< 1.0U
< 1.0 u
< 1.1 U
< 1 u
< 1 u
< 1 u
< 1.1 U
< 1.1 U
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
1.1 c'a
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1.1 u
< 1.0U
< 1.0 u
< 1.1 u
< 1 u
< 1 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1.1 u
< 1.0U
< 1.0 u
< 1.1 u
< 1 u
< 1 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.6 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.5 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Phenol
108-95-2
5800 "
ug/L
1.4
< 1 U
1.4
1.2
1.2
1.3
2
1.8
< 1 U
1.3
1.5
1.3
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1.1 U
< 1.0U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
< 1.1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
29 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
Sample ID
MW-6-
DUP-02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP02-
MW-6-
MW-DUP-02-
22122016
22122016
16022017
16022017
18052017
18052017
17082017
17082017
17112017
17112017
23022018
23022018
Date
12/22/2016
12/22/2016
2/16/2017
2/16/2017
5/18/2017
5/18/2017
8/17/2017
8/17/2017
11/17/2017
11/17/2017
2/23/2018
2/23/2018
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Project
Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 u
< 10U
< 10 u
< 10U
< 10 u
< 10U
< 10 u
< 10U
< 10 u
< 10U
< 10 u
< 10U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100U
< 100 u
< 100U
< 100 u
< 100U
UJ
< 100 u
UJ
< 100U
< 100 u
< 100U
< 100 u
< 100U
< 100 u
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100U
< 100 u
< 100U
< 100 u
< 100U
< 100 u
< 100U
< 100 u
< 100U
< 100 u
< 100U
< 100 u
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
92
92
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
12
18
27
20
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10U
< 10 U
< 10U
< 10 U
40
< 10 U
< 10U
< 10 U
< 10U
75
65
30 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-6-11122019
MW-DUP02-
11122019
MW-6-26022020
MW-DUP02-
26022020
MW-6-16062020
MW-DUP02-
16062020
MW-6-26082020
MW-DUP02-
26082020
MW-6-19112020
12/11/2019
12/11/2019
2/26/2020
2/26/2020
6/16/2020
6/16/2020
8/26/2020
8/26/2020
11/19/2020
N
FD
N
FD
N
FD
N
FD
N
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
181
180
155
131
122
121
147
149
201
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
155
153
110
113
69.4
70.7
83.7
83.8
133
J, J
31 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-06)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-06
MW-DUP02-
19112020
MW-6-22032021
MW-DUP02-
22032021
MW-6-26052021
MW-DUP02-
26052021
MW-6-19082021
MW-DUP02-
19082021
MW-6-03112021
MW-DUP02-
03112021
11/19/2020
3/22/2021
3/22/2021
5/26/2021
5/26/2021
8/19/2021
8/19/2021
11/3/2021
11/3/2021
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
173
135
J
127
117
132
112
J
104
105
J
104
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
170
J
146
149
130
129
111
121
130
125
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MOL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
32 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-07)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-7-14122016
MW-7-15022017
MW-7-17052017
MW-7-15082017
MW-7-16112017
MW-7-21022018
12/14/2016
2/15/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
7.3
6.7
27.7
8.3
8.4
3.8
J-, J
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.4 U
< 10 U
< 10.8 U
< 10 U
< 10.5 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
< 0.1 U
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
< 0.1 U
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 2.5 U
< 2.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.1 U
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
< 0.1 u
< 0.1 u
0.15
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
0.63
0.48
1.2
< 0.5 U
0.52
0.51
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 2 U
< 2.0 U
< 10 U
< 10 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 2 U
< 2.0 U
< 10 U
< 10 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 2 U
< 2.0 U
< 10 U
< 10 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
9.4
U
< 25 U
< 25 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
< 0.1 U
< 0.1 U
0.14
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 12.5 U
< 12.5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 2.5 U
< 2.5 U
< 0.5 U
33 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-07)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-7-14122016
MW-7-15022017
MW-7-17052017
MW-7-15082017
MW-7-16112017
MW-7-21022018
12/14/2016
2/15/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
1.1
0.75
8.7
1.4
< 0.5 U
0.98
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 2.5 U
< 2.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.1 U
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.1 u
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
< 0.1 u
< 0.1 u
0.14
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
< 0.1 u
< 0.1 u
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 2.5 U
< 2.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 2.5 U
< 2.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
< 0.1 u
< 0.1 U
< 0.10 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
< 0.1 u
< 0.1 U
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butyl benzene
135-98-8
2000"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
< 0.1 u
< 0.1 u
0.15
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.2 U
< 0.2 U
1.5
< 1 U
< 1 U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c,a
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 U
< 0.99 U
< 1 U
34 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-07)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-7-14122016
MW-7-15022017
MW-7-17052017
MW-7-15082017
MW-7-16112017
MW-7-21022018
12/14/2016
2/15/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2 U
< 2.3 U
< 2 U
< 2 U
<2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 "'a
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
CO
CO
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.9 U
< 25.4 U
< 28.2 U
< 25.1 U
< 24.8 U
< 26 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
CO
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000 "
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
35 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-07)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-7-14122016
MW-7-15022017
MW-7-17052017
MW-7-15082017
MW-7-16112017
MW-7-21022018
12/14/2016
2/15/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 0.99 U
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.5 U
< 2.8 U
< 2.5 U
< 2.5 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 0.99 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
UJ
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
36 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-07)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-07
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
MW-7-
Sample ID
09122019
12122019
25022020
15062020
26082020
18112020
10032021
25052021
04062021
18082021
02112021
Date
12/9/2019
12/12/2019
2/25/2020
6/15/2020
8/26/2020
11/18/2020
3/10/2021
5/25/2021
6/4/2021
8/18/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
N
N
Project
Quantitation Limit
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
7.9
7.6
24.6
9.3
8.3
6.7
16.0
27.9
9.5
6.9
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
1.7
3.2
21.6
5.1
1.8
1.2
53.2
7.4
3.8
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
37 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-09)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-9-14122016
MW-9-17022017
MW-9-18052017
MW-9-17082017
MW-9-17112017
MW-9-22022018
12/14/2016
2/17/2017
5/18/2017
8/17/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
211
315
275
142
J-
61.3
133
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.4U
< 10 U
< 10.0 U
< 10 U
< 10.9 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 1.2 U
< 0.50 U
< 1 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
0.13
< 0.25 U
0.11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
0.85
0.95
0.81
0.46
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
4
4.3
3.8
2.6
2.1
1.6
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 5 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 5 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 5 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 6.2 U
11.5
U
< 10 U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
0.55
0.83
0.83
0.22
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 6.2 U
< 2.5 U
< 5 U
< 20 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 1.2 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
38 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-09)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-9-14122016
MW-9-17022017
MW-9-18052017
MW-9-17082017
MW-9-17112017
MW-9-22022018
12/14/2016
2/17/2017
5/18/2017
8/17/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
61
69.9
60.2
23.2
20.7
26.1
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 1.2 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
0.21
0.28
0.23
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 1.2 U
< 0.50 U
< 1 U
< 5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 1.2 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
0.12
< 0.25 U
0.14
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1 U
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1 u
< 0.25 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
1.3
1.8
2.3
0.69
< 1.5 U
< 1.5 U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
39 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-09)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-9-14122016
MW-9-17022017
MW-9-18052017
MW-9-17082017
MW-9-17112017
MW-9-22022018
12/14/2016
2/17/2017
5/18/2017
8/17/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.2 U
< 2.2 U
< 2 U
< 2 U
<2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.3 U
< 27.5 U
< 27.6 U
< 25.3 U
< 25.5 U
< 25.8 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
40 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-09)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-9-14122016
MW-9-17022017
MW-9-18052017
MW-9-17082017
MW-9-17112017
MW-9-22022018
12/14/2016
2/17/2017
5/18/2017
8/17/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.7 U
< 2.7 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
UJ
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
41 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-09)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-09
MW-9-11121019
MW-9-25022020
MW-9-15062020
MW-9-26082020
MW-9-18112020
MW-9-22032021
MW-9-26052021
MW-9-18082021
MW-9-03112021
12/11/2019
2/25/2020
6/15/2020
8/26/2020
11/18/2020
3/22/2021
5/26/2021
8/18/2021
11/3/2021
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
33.0
27.1
20.9
27.4
96.9
57.8
34.8
25.1
30.9
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
8.3
4.8
1.4
3.0
42.1
28.4
13.6
5.5
7.9
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
42 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-10)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-10
MW-10
MW-10
MW-10
MW-10
MW-10
MW-10
MW-10
MW-10
Sample ID
MW-10-06122019
MW-10-20022020
MW-10-11062020
MW-10-24082020
MW-10-17112020
MW-10-09032021
MW-10-24052021
MW-10-17082021
MW-10-02112021
Date
12/6/2019
2/20/2020
6/11/2020
8/24/2020
11/17/2020
3/9/2021
5/24/2021
8/17/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.19 U
< 0.20 U
< 0.20 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
43 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-14)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14-20122016
MW-14-16022017
MW-14-16052017
MW-14-14082017
MW-14-13112017
MW-14-19022018
12/20/2016
2/16/2017
5/16/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
102
< 0.07 U
< 0.070 U
< 0.07 U
< 0.07 U
< 0.07 U
UJ
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.9 U
< 10.9 U
< 10.0 U
< 10 U
< 10.2 U
< 10.8 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
18.6
u
< 5U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
44 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-14)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14-20122016
MW-14-16022017
MW-14-16052017
MW-14-14082017
MW-14-13112017
MW-14-19022018
12/20/2016
2/16/2017
5/16/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
0.99
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
< 0.1 u
< 0.10 U
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 5U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 1.5U
< 1.5U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c'a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 U
< 1.1 U
45 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-14)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14-20122016
MW-14-16022017
MW-14-16052017
MW-14-14082017
MW-14-13112017
MW-14-19022018
12/20/2016
2/16/2017
5/16/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.3 U
< 2.3 U
< 2.1 U
< 2.1 U
< 2.1 U
< 2.2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 "'a
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
CO
CO
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
"| Cj 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 28.2 U
< 28.7 U
< 26.6 U
< 25.6 U
< 25.9 U
< 27.8 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
1.5
< 1 U
< 1.1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Chrysene
218-01-9
O
CO
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000 "
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
46 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-14)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14-20122016
MW-14-16022017
MW-14-16052017
MW-14-14082017
MW-14-13112017
MW-14-19022018
12/20/2016
2/16/2017
5/16/2017
8/14/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.9 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.8 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
< 1.1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
UJ
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
UJ
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
UJ
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
UJ
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
47 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-14)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
MW-14
Sample ID
MW-14-05122019
MW-14-20022020
MW-14-11062020
MW-14-24082020
MW-14-17112020
MW-14-09032021
MW-14-24052021
MW-14-17082021
MW-14-02112021
Date
12/5/2019
2/20/2020
6/11/2020
8/24/2020
11/17/2020
3/9/2021
5/24/2021
8/17/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
< 0.20 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
48 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15-20122016
MW-15-16022017
MW-15-17052017
MW-15-16082017
MW-15-16112017
MW-15-22022018
12/20/2016
2/16/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
55.6
39.9
38.4
35
38.2
40.9
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.0 U
< 10.2 U
< 10.8 U
< 10 U
< 10.9 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
3.6
U
< 5U
< 5U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
49 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15-20122016
MW-15-16022017
MW-15-17052017
MW-15-16082017
MW-15-16112017
MW-15-22022018
12/20/2016
2/16/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
0.15
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5 U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 U
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
50 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15-20122016
MW-15-16022017
MW-15-17052017
MW-15-16082017
MW-15-16112017
MW-15-22022018
12/20/2016
2/16/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
<2.1 U
< 2.2 U
< 2.4 U
<2.1 U
<2.1 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 26.7 U
< 28.1 U
< 30.3 U
< 26.2 U
< 25.9 U
< 25.5 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
51 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15-20122016
MW-15-16022017
MW-15-17052017
MW-15-16082017
MW-15-16112017
MW-15-22022018
12/20/2016
2/16/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.7 U
< 2.8 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
Notes:
52 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
MW-15
Sample ID
MW-15-10122019
MW-15-25022020
MW-15-16062020
MW-15-2582020
MW-15-18112020
MW-15-10032021
MW-15-25052021
MW-15-18082021
MW-15-03112021
Date
12/10/2019
2/25/2020
6/16/2020
8/25/2020
11/18/2020
3/10/2021
5/25/2021
8/18/2021
11/3/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
31.9
28.1
32.3
31.9
28.0
30.7
31.6
29.9
29.0
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
53 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15A)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A-15122016
MW-15A-16022017
MW-15A-17052017
MW-15A-15082017
MW-15A-16112017
MW-15A-21022018
12/15/2016
2/16/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
6.8
7.1
9.5
J-
7.1
10.2
5.3
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 17.5 U
< 10.6 U
< 10.8 U
< 10 U
< 10.9 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
0.032
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
0.12
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
0.099
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
0.62
< 2.5 U
18.5
U
< 5 U
< 5 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
0.068
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
54 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15A)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A-15122016
MW-15A-16022017
MW-15A-17052017
MW-15A-15082017
MW-15A-16112017
MW-15A-21022018
12/15/2016
2/16/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
0.56
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5 U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 U
55 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15A)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A-15122016
MW-15A-16022017
MW-15A-17052017
MW-15A-15082017
MW-15A-16112017
MW-15A-21022018
12/15/2016
2/16/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 3.0 U
< 2.3 U
< 2.3 U
< 3 U
< 2.4 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 37.9 U
< 28.7 U
< 28.7 U
< 37.3 U
< 30.5 U
< 25.3 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
56 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15A)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A-15122016
MW-15A-16022017
MW-15A-17052017
MW-15A-15082017
MW-15A-16112017
MW-15A-21022018
12/15/2016
2/16/2017
5/17/2017
8/15/2017
11/16/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.5 U
< 1.1 u
< 1.1 u
< 1.5 U
< 1.2 U
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 3.8 U
< 2.9 U
< 2.9 U
< 3.7 U
< 3 U
< 2.5 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.5 U
< 1.1 U
< 1.1 U
< 1.5 U
< 1.2 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
57 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15A)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A
MW-15A-
MW-15A-
MW-15A-
MW-15A-
MW-15A-
MW-15A-
MW-15A-
MW-15A-
MW-15A-
Sample ID
09122019
24022020
15062020
25082020
17112020
10032021
25052021
18082021
04112021
Date
12/9/2019
2/24/2020
6/15/2020
8/25/2020
11/17/2020
3/10/2021
5/25/2021
8/18/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
Project Quantitation
Method
Chemical
CAS#
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
8.5
9.8
10
9.9
6.2
9.5
9.3
9.6
6.3
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
58 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B-15122016
MW-15B-17022017
MW-15B-18052017
MW-15B-16082017
MW-15B-16112017
MW-15B-22022018
12/15/2016
2/17/2017
5/18/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
244
242
239
9.5
J
150
149
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.3 U
< 10 U
< 10.2 U
< 10 U
< 10.9 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
0.054
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
0.12
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 1.0 U
< 1 U
< 1.0 U
< 1 U
< 1 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
0.13
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
0.65
0.58
0.35
0.3
0.51
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
3.8
3.5
2.6
3
3.3
2.8
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 4.0 U
< 4 U
< 4.0 U
< 4 U
< 4 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
0.093
< 4 U
< 4.0 U
< 4 U
< 4 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 4.0 U
< 4 U
< 4.0 U
< 4 U
< 4 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
1.3
< 5U
7.4
U
< 10 U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
0.59
0.56
0.36
0.72
0.75
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 5.0 U
< 5U
< 5.0 U
< 5U
< 5U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 1.0 U
< 1 U
< 1.0 U
< 1 U
< 1 U
< 0.5 U
59 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B-15122016
MW-15B-17022017
MW-15B-18052017
MW-15B-16082017
MW-15B-16112017
MW-15B-22022018
12/15/2016
2/17/2017
5/18/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
44.3
41.4
28.1
32.1
45.5
35.1
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 1.0 U
< 1 U
< 1.0 U
< 1 U
< 1 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
0.13
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
0.19
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 1.0 U
< 1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
0.062
< 1 U
< 1.0 U
< 1 U
< 1 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
0.14
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
0.065
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
0.12
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
0.18
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
1.6
0.87
< 0.40 U
< 0.4 U
< 0.4 U
< 1.5U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
60 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B-15122016
MW-15B-17022017
MW-15B-18052017
MW-15B-16082017
MW-15B-16112017
MW-15B-22022018
12/15/2016
2/17/2017
5/18/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.2 U
< 2.1 U
< 2.1 U
< 2.1 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.5 U
< 27.3 U
< 25.9 U
< 25.8 U
< 26 U
< 25.3 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
61 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B-15122016
MW-15B-17022017
MW-15B-18052017
MW-15B-16082017
MW-15B-16112017
MW-15B-22022018
12/15/2016
2/17/2017
5/18/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.7 U
< 2.7 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
19
< 10 U
20
18
< 10 U
< 10 U
62 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-15B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B
MW-15B-
MW-15B-
MW-15B-
MW-15B-
MW-15B-
MW-15B-
MW-15B-
MW-15B-
MW-15B-
Sample ID
11122019
25022020
16062020
27082020
19112020
22032021
26052021
18082021
04112021
Date
12/11/2019
2/25/2020
6/16/2020
8/27/2020
11/19/2020
3/22/2021
5/26/2021
8/18/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
Project Quantitation
Method
Chemical
CAS#
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
137
81.5
186
182
172
121
133
160
143
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
49.5
34.3
45.4
68.7
64.9
36.6
46.5
62.7
49.6
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
63 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16-
20122016
MW-DUP01-
20122016
MW-16-
14022017
MW-DUP01-
14022017
MW-16-
16052017
MW-DUP01-
16052017
MW-16-
14082017
MW-DUP01-
14082017
MW-16-
15112017
MW-DUP01-
15112017
MW-16-
20022018
MW-DUP01-
20022018
12/20/2016
12/20/2016
2/14/2017
2/14/2017
5/16/2017
5/16/2017
8/14/2017
8/14/2017
11/15/2017
11/15/2017
2/20/2018
2/20/2018
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.53
J
0.51
0.48
0.82
J
0.76
0.46
J
0.48
0.52
J
0.47
0.26
J-
0.37
J
EPA 604.1
Hexachlorophene
70-30-4
6 n,a
ug/L
< 11.1 U
<11.2U
< 10.5 U
< 10.4 U
< 10.2U
< 10.0 U
< 10U
< 10 U
< 10.2U
< 10.9 U
< 10.5 U
< 10.9 U
EPA 8260B
1,1,1,2-Tetrachloroethane
630-20-6
0.57c
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-Tetrachloroethane
79-34-5
7.6 c'a
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-T richloroethane
79-00-5
5
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7"
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c'a
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 2 U
< 2U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 2 U
< 2U
EPA 8260B
2-Butanone
78-93-3
5600 "
ug/L
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2 U
< 2U
< 5 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
00
CO
ug/L
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2 U
< 2U
< 5 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300 "
ug/L
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2.0 U
< 2.0 U
< 2 U
< 2U
< 2 U
< 2U
< 5 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
25.9
U
24.6
U
< 5 U
< 5U
< 5 U
< 5U
< 10U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
CO
CO
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 2 U
< 2U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
64 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16-
20122016
MW-DUP01-
20122016
MW-16-
14022017
MW-DUP01-
14022017
MW-16-
16052017
MW-DUP01-
16052017
MW-16-
14082017
MW-DUP01-
14082017
MW-16-
15112017
MW-DUP01-
15112017
MW-16-
20022018
MW-DUP01-
20022018
12/20/2016
12/20/2016
2/14/2017
2/14/2017
5/16/2017
5/16/2017
8/14/2017
8/14/2017
11/15/2017
11/15/2017
2/20/2018
2/20/2018
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 1 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
0.92
0.97
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.10U
<0.10U
<0.1 U
< 0.1 U
<0.1 U
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
CO
CO
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200 "
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 1 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14c
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butylbenzene
104-51-8
1000 "
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000 "
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butylbenzene
98-06-6
690"
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.10U
<0.10U
<0.1 u
< 0.1 u
<0.1 u
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.20 U
< 0.20 U
< 0.2 U
< 0.2 U
< 0.2 U
< 0.2 U
< 1.5 U
< 1.5U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46 "
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39 "
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24c,a
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 "
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 U
< 1.1 U
65 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16-
20122016
MW-DUP01-
20122016
MW-16-
14022017
MW-DUP01-
14022017
MW-16-
16052017
MW-DUP01-
16052017
MW-16-
14082017
MW-DUP01-
14082017
MW-16-
15112017
MW-DUP01-
15112017
MW-16-
20022018
MW-DUP01-
20022018
12/20/2016
12/20/2016
2/14/2017
2/14/2017
5/16/2017
5/16/2017
8/14/2017
8/14/2017
11/15/2017
11/15/2017
2/20/2018
2/20/2018
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
EPA 8270D
2-Methylnaphthalene
91-57-6
CO
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.5 U
< 2.2 U
< 2.4 U
< 2.3 U
< 2.0 U
< 2.1 U
<2.1 U
< 2.2 U
<2.1 U
< 2.1 U
<2.1 U
< 2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 ca
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 n,a
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400 "
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chloroaniline
106-47-8
37c,a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
4-Nitroaniline
100-01-6
00
CO
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
UJ
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
1800 "
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
•j ^ C, 3
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Benzoic Acid
65-85-0
75000"
ug/L
< 30.7 U
< 27.6 U
< 29.4 U
< 28.2 U
< 25.5 U
< 26.6 U
< 26 U
< 27.8 U
< 25.6 U
< 25.9 U
< 25.9 U
< 26.5 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
1.1
< 1.1 U
1.3
J
1.4
< 1 U
< 1.1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Chrysene
218-01-9
CO
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 c'a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
UJ
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c'a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c'a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Isophorone
78-59-1
78 c
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
66 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16-
20122016
MW-DUP01-
20122016
MW-16-
14022017
MW-DUP01-
14022017
MW-16-
16052017
MW-DUP01-
16052017
MW-16-
14082017
MW-DUP01-
14082017
MW-16-
15112017
MW-DUP01-
15112017
MW-16-
20022018
MW-DUP01-
20022018
12/20/2016
12/20/2016
2/14/2017
2/14/2017
5/16/2017
5/16/2017
8/14/2017
8/14/2017
11/15/2017
11/15/2017
2/20/2018
2/20/2018
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
Result
Val
Qual
EPA 8270D
Nitrobenzene
98-95-3
13 c,a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
1.1 c'a
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 u
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12c
ug/L
< 1.2 U
< 1.1 u
< 1.2 U
< 1.1 u
<1.0 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
< 1 u
< 1 u
< 1.1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
<3.1 U
< 2.8 U
< 2.9 U
< 2.8 U
< 2.6 U
< 2.7 U
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Phenol
108-95-2
5800 "
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.2 U
< 1.1 U
< 1.2 U
< 1.1 U
<1.0 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
< 1 U
< 1 U
< 1.1 U
SW8468290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
SW8468290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
SW8468290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
SW8468290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
< 100 U
< 100U
SW8468290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW8468290
Total TCDD
41903-57-5
None
pg/L
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
SW8468290
Total TCDF
55722-27-5
None
pg/L
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
< 10U
< 10 U
67 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
MW-16
Sample ID
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
MW-16-
MW-DUP01-
06122019
06122019
24022020
24022020
11062020
11062020
24082020
24082020
17112020
17112020
09032020
09032021
25052021
25052021
17082021
17082021
02112021
02112021
Date
12/6/2019
12/6/2019
2/24/2020
2/24/2020
6/11/2020
6/11/2020
8/24/2020
8/24/2020
11/17/2020
11/17/2020
3/9/2021
3/9/2021
5/25/2021
5/25/2021
8/17/2021
8/17/2021
11/2/2021
11/2/2021
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Project
Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.36
0.33
0.34
0.32
0.36
0.35
0.20
J
0.34
0.22
0.23
0.28
0.28
0.20
< 0.20
< 0.20
< 0.21
< 0.20
< 0.20
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10~4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
68 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B-22122016
MW-16B-15022017
MW-16B-17052017
MW-16B-14082017
MW-16B-15112017
MW-16B-21022018
12/22/2016
2/15/2017
5/17/2017
8/14/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
1.8
2
1.0
J-
1.7
1.8
1.3
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 11.5 U
< 10.3 U
< 10.0 u
< 10 U
< 10.4 U
< 10.3 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
< 0.1 U
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
3.7
u
< 5U
U
< 5U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
69 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B-22122016
MW-16B-15022017
MW-16B-17052017
MW-16B-14082017
MW-16B-15112017
MW-16B-21022018
12/22/2016
2/15/2017
5/17/2017
8/14/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.1 U
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.1 u
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.2 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 U
70 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B-22122016
MW-16B-15022017
MW-16B-17052017
MW-16B-14082017
MW-16B-15112017
MW-16B-21022018
12/22/2016
2/15/2017
5/17/2017
8/14/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.3 U
< 2.2 U
< 2.1 U
< 2.1 U
< 2.1 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 28.4 U
< 27.9 U
< 26.5 U
< 26 U
< 26.5 U
< 25.3 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
71 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B-22122016
MW-16B-15022017
MW-16B-17052017
MW-16B-14082017
MW-16B-15112017
MW-16B-21022018
12/22/2016
2/15/2017
5/17/2017
8/14/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.1 u
< 1 u
< 1.1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.1 U
< 1 U
< 1.1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
72 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-16B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
MW-16B
Sample ID
MW-16B-
MW-16B-
MW-16B-
MW-16B-
MW-16B-
MW-16B-
MW-16B-
MW-16B-
MW-16B-
06122019
24022020
15062020
25082020
17112020
09032021
04062021
17082021
04112021
Date
12/6/2019
2/24/2020
6/15/2020
8/25/2020
11/17/2020
3/9/2021
6/4/2021
8/17/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
Project Quantitation
Method
Chemical
CAS#
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.96
0.89
1.5
1.8
1.7
1.2
0.71
1.2
1.2
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
73 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-21R)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R-16122016
MW-21 R-15022017
MW-21 R-17052017
MW-21 R-15082017
MW-21 R-15112017
MW-21 R-21022018
12/16/2016
2/15/2017
5/17/2017
8/15/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
7.8
6
19.6
3.9
3
31.2
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.6 U
< 10.3 U
< 10.5 U
< 10 U
< 10.4 U
< 10.3 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
<0.1 U
< 0.10 U
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
<0.1 u
0.15
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
5.5
U
< 5U
< 5U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 u
<0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
74 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-21R)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R-16122016
MW-21 R-15022017
MW-21 R-17052017
MW-21 R-15082017
MW-21 R-15112017
MW-21 R-21022018
12/16/2016
2/15/2017
5/17/2017
8/15/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
<0.1 U
< 0.10 u
<0.1 U
<0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
<0.1 u
0.68
<0.1 u
<0.1 u
0.6
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
<0.1 u
< 0.10 U
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
<0.1 u
< 0.10 u
<0.1 u
<0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5 U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 U
75 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-21R)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R-16122016
MW-21 R-15022017
MW-21 R-17052017
MW-21 R-15082017
MW-21 R-15112017
MW-21 R-21022018
12/16/2016
2/15/2017
5/17/2017
8/15/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
<2.1 U
< 2.4 U
<2.1 U
<2.1 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.9 U
< 25.9 U
< 29.6 U
< 25.6 U
< 25.8 U
< 25.4 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
76 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-21R)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R-16122016
MW-21 R-15022017
MW-21 R-17052017
MW-21 R-15082017
MW-21 R-15112017
MW-21 R-21022018
12/16/2016
2/15/2017
5/17/2017
8/15/2017
11/15/2017
2/21/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1 u
< 1.2 U
< 1 u
< 1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
< 2.6 U
< 3.0 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1 U
< 1.2 U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
UJ
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
77 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-21R)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
MW-21 R
Sample ID
MW-21 R-
MW-21 R-
MW-21 R-
MW-21 R-
MW-21 R-
MW-21 R-
MW-21 fi-
MW-21 R-
MW-21 R-
MW-21 R-
10122019
12122019
25022020
16062020
26082020
18112020
ll 032021
26052021
18082021
04112021
Date
12/10/2019
12/12/2019
2/25/2020
6/16/2020
8/26/2020
11/18/2020
3/11/2021
5/26/2021
8/18/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
N
Project Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
59.1
49.1
28.1
13.2
53.5
75.2
44.7
30.5
64.7
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
78 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-22)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22-16122016
MW-22-15022017
MW-22-17052017
MW-22-16082017
MW-22-16112017
MW-22-22022018
12/16/2016
2/15/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
38.4
35.4
31.2
J-
34.6
41.9
58.7
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.3 U
< 10.6 U
< 10.5 U
< 10 U
< 10.9 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.1011
< 0.1 U
< 0.10 U
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2,4-T rimethylbenzene
95-63-6
15"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3,5-T rimethylbenzene
108-67-8
120"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 2 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
6.4
U
< 5U
< 5U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 u
< 0.1 u
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
79 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-22)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22-16122016
MW-22-15022017
MW-22-17052017
MW-22-16082017
MW-22-16112017
MW-22-22022018
12/16/2016
2/15/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.1011
< 0.1 U
< 0.10 u
< 0.1 U
< 0.1 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
sec-Butyl benzene
135-98-8
2000"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.1011
< 0.1 u
< 0.10 u
< 0.1 u
< 0.1 u
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 0.2 U
< 1.5U
EPA 8270D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
EPA 8270D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c,a
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 U
80 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-22)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22-16122016
MW-22-15022017
MW-22-17052017
MW-22-16082017
MW-22-16112017
MW-22-22022018
12/16/2016
2/15/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.2 U
< 2.3 U
< 2.1 U
< 2 U
< 2.1 U
< 2.1 U
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 27.5 U
< 29.2 U
< 26.0 U
< 25.4 U
< 26.6 U
< 26.6 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
81 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-22)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22-16122016
MW-22-15022017
MW-22-17052017
MW-22-16082017
MW-22-16112017
MW-22-22022018
12/16/2016
2/15/2017
5/17/2017
8/16/2017
11/16/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.2 U
< 1.0 u
< 1 u
< 1.1 u
< 1.1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.7 U
< 2.9 U
< 2.6 U
< 2.5 U
< 2.7 U
< 2.7 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.2 U
< 1.0 U
< 1 U
< 1.1 U
< 1.1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.2 U
< 1.0 u
< 1 U
< 1.1 U
< 1.1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
UJ
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
82 of 98
-------
Table 1
East Area Groundwater Data Summary (MW-22)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
MW-22
Sample ID
MW-22-10122019
MW-22-25022020
MW-22-16062020
MW-22-25082020
MW-22-18112020
MW-22-10032021
MW-22-26052021
MW-22-18082021
MW-22-04112021
Date
12/10/2019
2/25/2020
6/16/2020
8/25/2020
11/18/2020
3/10/2021
5/26/2021
8/18/2021
11/4/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
39.0
36.9
33.5
39.0
36.1
41.4
31.8
39.0
40.4
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
83 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-221B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B-19122016
EA-221 B-16022017
EA-221 B-17052017
EA-221 B-16082017
EA-221 B-17112017
EA-221 B-22022018
12/19/2016
2/16/2017
5/17/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
1310
76.6
131
J-
82.9
73.3
82.4
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.9 U
< 10.6 U
< 10.1 U
< 10 U
< 10.3 U
< 10 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 2 U
< 5 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
23
U
< 5 U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
84 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-221B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B-19122016
EA-221 B-16022017
EA-221 B-17052017
EA-221 B-16082017
EA-221 B-17112017
EA-221 B-22022018
12/19/2016
2/16/2017
5/17/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.10 11
<0.1 U
<0.10 11
<0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
0.82
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.10 11
<0.1 u
<0.10 11
<0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.2 U
< 1.5 U
< 1.5 U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 U
< 1 U
85 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-221B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B-19122016
EA-221 B-16022017
EA-221 B-17052017
EA-221 B-16082017
EA-221 B-17112017
EA-221 B-22022018
12/19/2016
2/16/2017
5/17/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.3 U
< 2.2 U
< 2.0 U
<2.1 U
<2.1 U
< 2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 28.6 U
< 26.9 U
< 25.3 U
< 26.3 U
< 25.6 U
< 25 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
86 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-221B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B-19122016
EA-221 B-16022017
EA-221 B-17052017
EA-221 B-16082017
EA-221 B-17112017
EA-221 B-22022018
12/19/2016
2/16/2017
5/17/2017
8/16/2017
11/17/2017
2/22/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.9 U
< 2.7 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.5 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
87 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-221B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
EA-221 B
Sample ID
EA-221B-10122019
EA-221 B-26022020
EA-221 B-17062020
EA-221 B-27082020
EA-221 B-18112020
EA-221 B-11032021
EA-221 B-26052021
EA-221 B-19082021
EA-221 B-03112021
Date
12/10/2019
2/26/2020
6/17/2020
8/27/2020
11/18/2020
3/11/2021
5/26/2021
8/19/2021
11/3/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
150
167
265
117
71.2
135
197
113
159
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
88 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-222B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B-22122016
EA-222B-15022017
EA-222B-16052017
EA-222B-18052017
EA-222B-15082017
EA-222B-13112017
EA-222B-19022018
12/22/2016
2/15/2017
5/16/2017
5/18/2017
8/15/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.13
0.15
0.28
J-
0.07
< 3.5 U
1
J-
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.8 U
< 10.6 U
< 11.2 U
< 10 U
<11.1 U
< 10.9 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2.0 U
< 2 U
< 5 U
< 5U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2.0 U
< 2 U
< 5 U
< 5U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2 U
< 2 U
< 2.0 U
< 2.0 U
< 2 U
< 5 U
< 5U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
2.6
< 2.5 U
8.6
U
2.9
U
< 5 U
U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
< 0.1 U
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
0.99
0.42
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 u
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 20 U
< 5U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
89 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-222B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B-22122016
EA-222B-15022017
EA-222B-16052017
EA-222B-18052017
EA-222B-15082017
EA-222B-13112017
EA-222B-19022018
12/22/2016
2/15/2017
5/16/2017
5/18/2017
8/15/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
0.2
0.1
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 0.1 U
< 0.1 u
0.13
<0.10 11
< 0.1 u
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
2.8
2
1.0
0.84
0.19
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
< 0.5 U
0.63
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
< 0.5 U
< 0.50 U
< 0.50 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
< 0.1 U
< 0.1 U
<0.10 11
<0.10 11
< 0.1 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.1 u
< 0.1 u
<0.10 11
<0.10 11
< 0.1 u
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.2 U
< 0.2 U
< 0.20 U
< 0.20 U
< 0.2 U
< 1.5U
< 1.5U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 U
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c a
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 U
< 1.1 U
90 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-222B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B-22122016
EA-222B-15022017
EA-222B-16052017
EA-222B-18052017
EA-222B-15082017
EA-222B-13112017
EA-222B-19022018
12/22/2016
2/15/2017
5/16/2017
5/18/2017
8/15/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.6 U
UJ
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.1 U
< 2.3 U
< 2.1 U
< 2.1 U
< 2.2 U
< 2.2 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.6 U
UJ
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.6 U
UJ
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.6 U
UJ
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
"| Cj 3
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 26.5 U
< 28.2 U
< 25.8 U
< 26.3 U
< 27.2 U
< 27.2 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
2.6
< 1.1 U
< 1.0 U
3.6
< 1.1 U
< 1.1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Chrysene
218-01-9
O
CO
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
91 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-222B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B-22122016
EA-222B-15022017
EA-222B-16052017
EA-222B-18052017
EA-222B-15082017
EA-222B-13112017
EA-222B-19022018
12/22/2016
2/15/2017
5/16/2017
5/18/2017
8/15/2017
11/13/2017
2/19/2018
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 u
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Isophorone
78-59-1
78 c
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
UJ
< 1.1 u
< 1.0 u
< 1.1 u
< 1.1 u
< 1.1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.6 U
< 2.8 U
< 2.6 U
< 2.6 U
< 2.7 U
< 2.7 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
UJ
< 1.1 U
< 1.0 U
< 1.1 U
< 1.1 U
< 1.1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
UJ
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
92 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-222B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
EA-222B
Sample ID
EA-222B-06122019
EA-222B-20022020
EA-222B-15062020
EA-222B-25082020
EA-222B-17112020
EA-222B-09032021
EA-222B-04062021
EA-222B-17082021
EA-222B-02112021
Date
12/6/2019
2/20/2020
6/15/2020
8/25/2020
11/17/2020
3/9/2021
6/4/2021
8/17/2021
11/2/2021
Sample Type
N
N
N
N
N
N
N
N
N
Method
Chemical
CAS#
Project
Quantitation Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.45
0.88
1.2
1.4
1.9
2.4
2.3
2.6
3.1
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
93 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-223B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B-19122016
EA-223B-16022017
EA-223B-25052017
EA-223B-17082017
EA-223B-17112017
EA-223B-23022018
12/19/2016
2/16/2017
5/25/2017
8/17/2017
11/17/2017
2/23/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
1320
1190
1550
1300
J-
729
1730
EPA 604.1
Hexachlorophene
70-30-4
6 n'a
ug/L
< 10.4U
< 10.6 U
< 10.3 U
< 10 U
< 10.9 U
< 10.5 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,1-Trichloroethane
71-55-6
200
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 c'a
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloroethene
75-35-4
7
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,1-Dichloropropene
563-58-6
None
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richlorobenzene
87-61-6
7 n
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,3-T richloropropane
96-18-4
0.075 c a
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2,4-Trimethyl benzene
95-63-6
15"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 1 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3,5-Trimethyl benzene
108-67-8
120"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.10 11
< 0.1 u
0.18
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 1 U
< 1 U
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
< 2.0 U
< 2 U
< 2.0 U
< 4 U
< 5 U
< 5 U
EPA 8260B
Acetone
67-64-1
14000"
ug/L
< 2.5 U
< 2.5 U
4.4
< 10 U
< 10 U
< 10 U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 2.5 U
< 2.5 U
< 2.5 U
< 5 U
< 20 U
< 5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
94 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-223B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B-19122016
EA-223B-16022017
EA-223B-25052017
EA-223B-17082017
EA-223B-17112017
EA-223B-23022018
12/19/2016
2/16/2017
5/25/2017
8/17/2017
11/17/2017
2/23/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
0.20
0.23
0.28
0.32
0.54
1.3
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 2 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Isopropyl benzene
98-82-8
450"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 1 U
< 5 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.50 U
< 0.5 U
< 0.50 U
< 1 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Butyl benzene
104-51-8
1000"
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
n-Propyl benzene
103-65-1
660"
ug/L
<0.10 11
< 0.1 U
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
p-lsopropyltoluene
99-87-6
None
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.10 11
< 0.1 u
<0.10 11
UJ
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
tert-Butyl benzene
98-06-6
690"
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Tetrachloroethene
127-18-4
5
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.10 11
< 0.1 u
<0.10 11
< 0.2 U
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 0.20 U
< 0.2 U
< 0.20 U
< 0.4 U
< 1.5U
< 1.5U
EPA 8270 D
2,2'-oxybis(1 -Chloropropane)
108-60-1
710"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4,6-T richlorophenol
88-06-2
4.1 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
2,4-Dinitrotoluene
121-14-2
24 c,a
ug/L
< 1.1 u
< 1.1 U
< 1.0 u
< 1 U
< 1 U
1.5
EPA 8270 D
2,6-Dinitrotoluene
606-20-2
4.9 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 U
< 1 U
< 1 U
95 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-223B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B-19122016
EA-223B-16022017
EA-223B-25052017
EA-223B-17082017
EA-223B-17112017
EA-223B-23022018
12/19/2016
2/16/2017
5/25/2017
8/17/2017
11/17/2017
2/23/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Chlorophenol
95-57-8
91 n
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Methylphenol
95-48-7
930"
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3 &4-Methylphenol
MEPH3MEPH4
930"
ug/L
< 2.1 U
< 2.2 U
< 2.0 U
< 2.1 U
< 2.1 U
< 2.1 U
EPA 8270 D
3,3-Dichlorobenzidine
91-94-1
13 C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
3-Nitroaniline
99-09-2
None
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 ",a
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chloroaniline
106-47-8
37 c,a
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
4-Nitroaniline
100-01-6
O
00
CO
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthene
83-32-9
530"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Acenaphthylene
208-96-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Aniline
62-53-3
13 c
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
Anthracene
120-12-7
1800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)anthracene
56-55-3
1 ^ C, 3
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Benzoic Acid
65-85-0
75000 "
ug/L
< 26.3 U
< 27.6 U
< 25.1 U
< 25.8 U
< 26.2 U
< 26 U
EPA 8270 D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Butyl benzylphthalate
85-68-7
16 c
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Chrysene
218-01-9
O
00
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzo(a,h)anthracene
53-70-3
0.34 ca
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Diethylphthalate
84-66-2
15000"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluoranthene
206-44-0
800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Fluorene
86-73-7
290"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
96 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-223B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
Sample ID
Date
Sample Type
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B-19122016
EA-223B-16022017
EA-223B-25052017
EA-223B-17082017
EA-223B-17112017
EA-223B-23022018
12/19/2016
2/16/2017
5/25/2017
8/17/2017
11/17/2017
2/23/2018
N
N
N
N
N
N
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270 D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Hexachloroethane
67-72-1
6.2 c a
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
EPA 8270 D
lndeno(1,2,3-cd)pyrene
193-39-5
3.4 c,a
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Isophorone
78-59-1
O
00
I"**.
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Nitrobenzene
98-95-3
13 C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodi-n-propylamine
621-64-7
*| -j C, 3
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 u
< 1.1 u
< 1.0 u
< 1 u
< 1 u
< 1 u
EPA 8270 D
Pentachlorophenol
87-86-5
1
ug/L
< 2.6 U
< 2.8 U
< 2.5 U
< 2.6 U
< 2.6 U
< 2.6 U
EPA 8270 D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Phenol
108-95-2
5800"
ug/L
< 1.1 U
< 1.1 U
< 1.0 U
< 1 U
< 1 U
< 1 U
EPA 8270 D
Pyrene
129-00-0
120"
ug/L
< 1.1 U
< 1.1 U
< 1.0 u
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
OCDD
3268-87-9
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
SW846 8290
Total TCDF
55722-27-5
None
pg/L
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
< 10 U
97 of 98
-------
Table 1
East Area Groundwater Data Summary (EA-223B)
December 2016 - November 2021
Syntex Facility Superfund Site - Verona, MO
Well ID
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
EA-223B-
Sample ID
11122019
26022020
16062020
17062020
27082020
19112020
22032021
26052021
19082021
03112021
Date
12/11/2019
2/26/2020
6/16/2020
6/17/2020
8/27/2020
11/19/2020
3/22/2021
5/26/2021
8/19/2021
11/3/2021
Sample Type
N
N
N
N
N
N
N
N
N
N
Project
Quantitation
Val
Val
Val
Val
Val
Val
Val
Val
Val
Val
Method
Chemical
CAS#
Limit Goal*
Units
Result
Qua I
Result
Qua I
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
Result
Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
1860
2260
2650
2250
2380
2460
2480
2200
2220
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
98 of 98
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
I
I
ro
78-93-3
95-57-8
591
I
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
IS-6
5/15/2017
IS-6-15052017
6.5
U
8/14/2017
IS-6-14082017
8.1
U
MW-02
5/15/2017
MW-2-15052017
6.6
u
12/14/2016
MW-3-14122016
0.93
2/14/2017
MW-3-14022017
0.75
5/16/2017
MW-3-16052017
1.6
12.7
u
8/15/2017
MW-3-15082017
1.3
11/15/2017
MW-3-15112017
1.7
2/20/2018
MW-3-20022018
1.5
12/9/2019
MW-3-09122019
1.0
MW-03
2/24/2020
MW-3-24022020
1.0
6/15/2020
MW-3-15062020
5.9
8/25/2020
MW-3-25082020
2.1
11/17/2020
MW-3-17112020
1.4
3/9/2021
MW-3-09032021
1.2
6/4/2021
MW-3-04062021
11.4
8/17/2021
MW-3-17082021
2.1
11/4/2021
MW-3-04112021
2.3
12/14/2016
MW-4-14122016
0.54
2/14/2017
MW-4-14022017
0.97
5/16/2017
MW-4-16052017
0.13
374
J
13.4
u
8/17/2017
MW-4-17082017
8.7
11/16/2017
MW-4-16112017
0.25
2/20/2018
MW-4-20022018
3.9
12/9/2019
MW-4-09122019
12.6
MW-04
2/25/2020
MW-4-25022020
22.7
6/15/2020
MW-4-15062020
26.3
8/26/2020
MW-4-26082020
0.46
11/18/2020
MW-4-18112020
0.27
3/10/2021
MW-4-10032021
4.7
6/4/2021
MW-4-04062021
183
8/19/2021
MW-4-19082021
0.73
11/2/2021
MW-4-02112021
240
12/20/2016
MW-5-20122016
409
2/17/2017
MW-5-17022017
260
5/18/2017
MW-5-18052017
0.14
268
J-
5.5
u
8/16/2017
MW-5-16082017
0.13
136
J
7.1
u
11/17/2017
MW-5-17112017
297
2/22/2018
MW-5-22022018
255
12/11/2019
MW-5-11122019
96.0
MW-05
2/25/2020
MW-5-25022020
103
6/16/2020
MW-5-16062020
73.6
8/26/2020
MW-5-26082020
76.0
11/18/2020
MW-5-18112020
123
3/22/2021
MW-5-22032021
69.6
5/26/2021
MW-5-26052021
85.4
8/18/2021
MW-5-18082021
69.1
11/3/2021
MW-5-03112021
44.9
1 of 18
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
I
I
ro
78-93-3
95-57-8
591
I
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/22/2016
MW-6-22122016
2
5.1
632
J
12/22/2016
DUP-02-22122016
2
5
635
2/16/2017
MW-6-16022017
0.71
0.35
0.12
2.2
6.7
710
J
3.3
2/16/2017
MW-DUP02-16022017
0.69
0.33
0.11
2.2
6.6
648
3.4
5/18/2017
MW-6-18052017
1.0
0.30
0.18
1.1
6.4
556
J
13.6
U
5/18/2017
MW-DUP02-18052017
1.0
0.28
0.17
1.1
6.1
643
24.5
U
8/17/2017
MW-6-17082017
0.72
0.87
5.6
338
J-
1.3
8/17/2017
MW-DUP02-17082017
0.73
0.92
5.8
315
J-
1.3
11/17/2017
MW-6-17112017
0.56
1.0
6.9
337
J
11/17/2017
MW-DUP02-17112017
0.98
6.9
353
1.1
2/23/2018
MW-6-23022018
0.88
1.6
10.9
524
1.2
2/23/2018
MW-DUP-02-23022018
0.78
1.6
10.3
495
1.1
12/11/2019
MW-6-11122019
181
12/11/2019
MW-DUP02-11122019
180
2/26/2020
MW-6-26022020
155
MW-06
2/26/2020
MW-DUP02-26022020
131
6/16/2020
MW-6-16062020
122
6/16/2020
MW-DUP02-16062020
121
6/16/2020
MW-DUP-02-16062020
8/26/2020
MW-6-26082020
147
8/26/2020
MW-DUP02-26082020
149
11/19/2020
MW-6-19112020
201
11/19/2020
MW-DUP02-19112020
173
3/22/2021
MW-6-22032021
135
J
3/22/2021
MW-DUP02-22032021
127
5/26/2021
MW-6-26052021
117
5/26/2021
MW-DUP02-26052021
132
8/19/2021
MW-6-19082021
112
J
8/19/2021
MW-DUP02-19082021
104
11/3/2021
MW-6-03112021
1.7
10.5
105
J
11/3/2021
MW-DUP02-03112021
1.6
10.1
104
12/14/2016
MW-7-14122016
0.63
7.3
2/15/2017
MW-7-15022017
0.48
6.7
5/17/2017
MW-7-17052017
0.15
1.2
27.7
9.4
u
8/15/2017
MW-7-15082017
8.3
11/16/2017
MW-7-16112017
0.52
8.4
2/21/2018
MW-7-21022018
0.51
3.8
J-
12/9/2019
MW-7-09122019
7.9
12/12/2019
MW-7-12122019
MW-07
2/25/2020
MW-7-25022020
7.6
6/15/2020
MW-7-15062020
24.6
8/26/2020
MW-7-26082020
9.3
11/18/2020
MW-7-18112020
8.3
3/10/2021
MW-7-10032021
6.7
5/25/2021
MW-7-25052021
16.0
6/4/2021
MW-7-04062021
27.9
8/18/2021
MW-7-18082021
9.5
11/2/2021
MW-7-02112021
0.85
6.9
2 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
I
I
ro
78-93-3
95-57-8
591
1
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/14/2016
MW-9-14122016
0.13
0.85
4.0
211
2/17/2017
MW-9-17022017
0.95
4.3
315
5/18/2017
MW-9-18052017
0.11
0.81
3.8
275
11.5
U
8/17/2017
MW-9-17082017
0.46
2.6
142
J-
11/17/2017
MW-9-17112017
2.1
61.3
2/22/2018
MW-9-22022018
1.6
133
12/11/2019
MW-9-11121019
33.0
MW-09
2/25/2020
MW-9-25022020
27.1
6/15/2020
MW-9-15062020
20.9
8/26/2020
MW-9-26082020
27.4
11/18/2020
MW-9-18112020
96.9
3/22/2021
MW-9-22032021
57.8
5/26/2021
MW-9-26052021
34.8
8/18/2021
MW-9-18082021
25.1
11/3/2021
MW-9-03112021
0.94
30.9
12/20/2016
MW-14-20122016
102
MW-14
5/16/2017
MW-14-16052017
18.6
U
8/14/2017
MW-14-14082017
12/20/2016
MW-15-20122016
55.6
2/16/2017
MW-15-16022017
39.9
5/17/2017
MW-15-17052017
38.4
3.6
u
8/16/2017
MW-15-16082017
35.0
11/16/2017
MW-15-16112017
38.2
2/22/2018
MW-15-22022018
40.9
12/10/2019
MW-15-10122019
31.9
MW-15
2/25/2020
MW-15-25022020
28.1
6/16/2020
MW-15-16062020
32.3
8/25/2020
MW-15-2582020
31.9
11/18/2020
MW-15-18112020
28.0
3/10/2021
MW-15-10032021
30.7
5/25/2021
MW-15-25052021
31.6
8/18/2021
MW-15-18082021
29.9
11/3/2021
MW-15-03112021
29.0
12/15/2016
MW-15A-15122016
0.032
6.8
0.12
0.099
0.62
2/16/2017
MW-15A-16022017
7.1
5/17/2017
MW-15A-17052017
9.5
J-
18.5
u
8/15/2017
MW-15A-15082017
7.1
11/16/2017
MW-15A-16112017
10.2
2/21/2018
MW-15A-21022018
5.3
12/9/2019
MW-15A-09122019
8.5
MW-15A
2/24/2020
MW-15A-24022020
9.8
6/15/2020
MW-15A-15062020
10
8/25/2020
MW-15A-25082020
9.9
11/17/2020
MW-15A-17112020
6.2
3/10/2021
MW-15A-10032021
9.5
5/25/2021
MW-15A-25052021
9.3
8/18/2021
MW-15A-18082021
9.6
11/4/2021
MW-15A-04112021
6.3
3 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
I
I
ro
78-93-3
95-57-8
591
1
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/15/2016
MW-15B-15122016
0.054
0.12
0.13
0.65
3.8
244
0.093
1.3
2/17/2017
MW-15B-17022017
0.58
3.5
242
5/18/2017
MW-15B-18052017
0.35
2.6
239
7.4
U
8/16/2017
MW-15B-16082017
0.30
3.0
9.5
J
11/16/2017
MW-15B-16112017
0.51
3.3
150
2/22/2018
MW-15B-22022018
2.8
149
12/11/2019
MW-15B-11122019
137
MW-15B
2/25/2020
MW-15B-25022020
81.5
6/16/2020
MW-15B-16062020
186
8/27/2020
MW-15B-27082020
182
11/19/2020
MW-15B-19112020
172
3/22/2021
MW-15B-22032021
121
5/26/2021
MW-15B-26052021
133
8/18/2021
MW-15B-18082021
160
11/4/2021
MW-15B-04112021
0.65
4.6
143
12/20/2016
MW-16-20122016
0.53
J
2/14/2017
MW-16-14022017
0.51
2/14/2017
MW-DUP01-14022017
0.48
5/16/2017
MW-16-16052017
0.82
J
25.9
U
5/16/2017
MW-DUP01-16052017
0.76
24.6
u
8/14/2017
MW-16-14082017
0.46
J
8/14/2017
MW-DUP01-14082017
0.48
11/15/2017
MW-16-15112017
0.52
J
11/15/2017
MW-DUP01 -15112017
0.47
2/20/2018
MW-16-20022018
0.26
J-, J
2/20/2018
MW-DUP01-20022018
0.37
J
MW-16
12/6/2019
MW-16-06122019
0.36
12/6/2019
MW-DUP01 -06122019
0.33
2/24/2020
MW-16-24022020
0.34
2/24/2020
MW-DUP01-24022020
0.32
6/11/2020
MW-16-11062020
0.36
6/11/2020
MW-DUP01-11062020
0.35
8/24/2020
MW-16-24082020
0.20
J
8/24/2020
MW-DUP01-24082020
0.34
11/17/2020
MW-16-17112020
0.22
11/17/2020
MW-DUP01-17112020
0.23
3/9/2021
MW-16-09032020
0.28
3/9/2021
MW-DUP01-09032021
0.28
5/25/2021
MW-16-25052021
0.20
12/22/2016
MW-16B-22122016
1.8
2/15/2017
MW-16B-15022017
2.0
5/17/2017
MW-16B-17052017
1.0
J-
3.7
u
8/14/2017
MW-16B-14082017
1.7
6.6
u
11/15/2017
MW-16B-15112017
1.8
2/21/2018
MW-16B-21022018
1.3
12/6/2019
MW-16B-06122019
0.96
MW-16B
2/24/2020
MW-16B-24022020
0.89
6/15/2020
MW-16B-15062020
1.5
8/25/2020
MW-16B-25082020
1.8
11/17/2020
MW-16B-17112020
1.7
3/9/2021
MW-16B-09032021
1.2
6/4/2021
MW-16B-04062021
0.71
8/17/2021
MW-16B-17082021
1.2
11/4/2021
MW-16B-04112021
1.2
4 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
I
I
ro
78-93-3
95-57-8
591
I
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/16/2016
MW-21 R-16122016
7.8
2/15/2017
MW-21 R-15022017
6.0
5/17/2017
MW-21 R-17052017
0.15
19.6
5.5
U
8/15/2017
MW-21 R-15082017
3.9
11/15/2017
MW-21 R-15112017
3.0
2/21/2018
MW-21 R-21022018
31.2
12/10/2019
MW-21 R-10122019
59.1
MW-21R
2/25/2020
MW-21 R-25022020
49.1
6/16/2020
MW-21 R-16062020
28.1
8/26/2020
MW-21 R-26082020
13.2
11/18/2020
MW-21 R-18112020
53.5
3/11/2021
MW-21 R-11032021
75.2
5/26/2021
MW-21 R-26052021
44.7
8/18/2021
MW-21 R-18082021
30.5
11/4/2021
MW-21 R-04112021
64.7
12/16/2016
MW-22-16122016
38.4
2/15/2017
MW-22-15022017
35.4
5/17/2017
MW-22-17052017
31.2
J-
6.4
U
8/16/2017
MW-22-16082017
34.6
11/16/2017
MW-22-16112017
41.9
2/22/2018
MW-22-22022018
58.7
12/10/2019
MW-22-10122019
39.0
MW-22
2/25/2020
MW-22-25022020
36.9
6/16/2020
MW-22-16062020
33.5
8/25/2020
MW-22-25082020
39.0
11/18/2020
MW-22-18112020
36.1
3/10/2021
MW-22-10032021
41.4
5/26/2021
MW-22-26052021
31.8
8/18/2021
MW-22-18082021
39.0
11/4/2021
MW-22-04112021
40.4
12/19/2016
EA-221 B-19122016
1310
2/16/2017
EA-221 B-16022017
76.6
5/17/2017
EA-221 B-17052017
131
J-
23.0
u
8/16/2017
EA-221 B-16082017
82.9
11/17/2017
EA-221 B-17112017
73.3
2/22/2018
EA-221 B-22022018
82.4
12/10/2019
EA-221 B-10122019
150
EA-221 B
2/26/2020
EA-221 B-26022020
167
6/17/2020
EA-221 B-17062020
265
8/27/2020
EA-221 B-27082020
117
11/18/2020
EA-221 B-18112020
71.2
3/11/2021
EA-221 B-11032021
135
5/26/2021
EA-221 B-26052021
197
8/19/2021
EA-221 B-19082021
113
11/3/2021
EA-221 B-03112021
159
5 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
1,2,4-
1,2,4-
1,2-
1,3,5-
1,3-
1,4-
2,4-
Chemical
Trichlorobenzene
Trimethylbenzene
Dichlorobenzene
Trimethyl benzene
Dichlorobenzene
Dichlorobenzene
1,4-Dioxane
Dinitrotoluene
2-Butanone
2-Chlorophenol
2-Hexanone
Acetone
CAS#
120-82-1
95-63-6
95-50-1
108-67-8
541-73-1
106-46-7
123-91-1
121
1
1
ro
78-93-3
95-57-8
591
I
00
1
o*
67-64-1
Project Quantitation Limit Goal*
70
15
n
600
120"
None
75
0.46c
24 c a
5600"
91 n
c
00
CO
14000"
Units
ug/L
ug/L
uc
|/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/22/2016
EA-222B-22122016
0.13
2.6
2/15/2017
EA-222B-1 5022017
0.15
5/16/2017
EA-222B-16052017
8.6
U
5/18/2017
EA-222B-18052017
0.28
J-
2.9
U
8/15/2017
EA-222B-1 5082017
0.070
5.2
u
2/19/2018
EA-222B-19022018
1.0
J-
12/6/2019
EA-222B-06122019
0.45
EA-222B
2/20/2020
EA-222B-20022020
0.88
6/15/2020
EA-222B-1 5062020
1.2
8/25/2020
EA-222B-25082020
1.4
11/17/2020
EA-222B-17112020
1.9
3/9/2021
EA-222B-09032021
2.4
6/4/2021
EA-222B-04062021
2.3
8/17/2021
EA-222B-17082021
2.6
11/2/2021
EA-222B-02112021
3.1
12/19/2016
EA-223B-19122016
1320
2/16/2017
EA-223B-16022017
1190
5/25/2017
EA-223B-25052017
0.18
1550
4.4
8/17/2017
EA-223B-17082017
1300
J-
11/17/2017
EA-223B-17112017
729
2/23/2018
EA-223B-23022018
1730
1.5
12/11/2019
EA-223B-11122019
1860
EA-223B
2/26/2020
EA-223B-26022020
2260
6/17/2020
EA-223B-17062020
2650
8/27/2020
EA-223B-27082020
2250
11/19/2020
EA-223B-19112020
2380
3/22/2021
EA-223B-22032021
2460
5/26/2021
EA-223B-26052021
2480
8/19/2021
EA-223B-19082021
2200
11/3/2021
EA-223B-03112021
2220
6 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
Benzene
bis(2-
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-43-2
117-81-7
75-27-4
74-83-9
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
IS-6
5/1 5/2017
IS-6-15052017
8/14/2017
IS-6-14082017
1.0
U
MW-02
5/1 5/2017
MW-2-15052017
MW-03
12/14/2016
MW-3-14122016
2/14/2017
MW-3-14022017
5/16/2017
MW-3-16052017
8/1 5/2017
MW-3-15082017
11/15/2017
MW-3-15112017
2/20/2018
MW-3-20022018
12/9/2019
MW-3-09122019
2/24/2020
MW-3-24022020
6/1 5/2020
MW-3-15062020
8/25/2020
MW-3-25082020
11/17/2020
MW-3-17112020
3/9/2021
MW-3-09032021
6/4/2021
MW-3-04062021
8/17/2021
MW-3-17082021
11/4/2021
MW-3-04112021
MW-04
12/14/2016
MW-4-14122016
2/14/2017
MW-4-14022017
5/16/2017
MW-4-16052017
0.20
9.6
8/17/2017
MW-4-17082017
11/16/2017
MW-4-16112017
2/20/2018
MW-4-20022018
12/9/2019
MW-4-09122019
2/25/2020
MW-4-25022020
6/1 5/2020
MW-4-15062020
8/26/2020
MW-4-26082020
11/18/2020
MW-4-18112020
3/10/2021
MW-4-10032021
6/4/2021
MW-4-04062021
8/19/2021
MW-4-19082021
11/2/2021
MW-4-02112021
MW-05
12/20/2016
MW-5-20122016
2/17/2017
MW-5-17022017
5/18/2017
MW-5-18052017
8/16/2017
MW-5-16082017
0.69
U
11/17/2017
MW-5-17112017
2/22/2018
MW-5-22022018
12/11/2019
MW-5-11122019
2/25/2020
MW-5-25022020
6/16/2020
MW-5-16062020
8/26/2020
MW-5-26082020
11/18/2020
MW-5-18112020
3/22/2021
MW-5-22032021
5/26/2021
MW-5-26052021
8/18/2021
MW-5-18082021
11/3/2021
MW-5-03112021
7 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
bis(2
Chemical
Benzene
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-
43-2
117-81
-7
75-27-4
74-83-9
108-90-7
124-48-
1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91
-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/22/2016
MW-6-22122016
1.1
0.65
12/22/2016
DUP-02-22122016
1.2
88
J
0.65
2/16/2017
MW-6-16022017
1.6
94.6
0.72
0.77
2/16/2017
MW-DUP02-16022017
1.7
93.5
0.73
0.75
5/18/2017
MW-6-18052017
2.7
91.4
1.4
0.70
5/18/2017
MW-DUP02-18052017
2.7
89.7
1.4
0.68
8/17/2017
MW-6-17082017
2.9
119
J-
0.60
8/17/2017
MW-DUP02-17082017
2.8
118
0.61
11/17/2017
MW-6-17112017
2.8
114
0.65
11/17/2017
MW-DUP02-17112017
2.7
113
0.60
2/23/2018
MW-6-23022018
3.6
157
1.1
J
2/23/2018
MW-DUP-02-23022018
3.5
157
1
12/11/2019
MW-6-11122019
155
12/11/2019
MW-DUP02-11122019
153
2/26/2020
MW-6-26022020
110
MW-06
2/26/2020
MW-DUP02-26022020
113
6/16/2020
MW-6-16062020
69.4
6/16/2020
MW-DUP02-16062020
6/16/2020
MW-DUP-02-16062020
70.7
8/26/2020
MW-6-26082020
83.7
8/26/2020
MW-DUP02-26082020
83.8
11/19/2020
MW-6-19112020
133
J, J
11/19/2020
MW-DUP02-19112020
170
J
3/22/2021
MW-6-22032021
146
3/22/2021
MW-DUP02-22032021
149
5/26/2021
MW-6-26052021
130
5/26/2021
MW-DUP02-26052021
129
8/19/2021
MW-6-19082021
111
8/19/2021
MW-DUP02-19082021
121
11/3/2021
MW-6-03112021
2.5
130
1.1
11/3/2021
MW-DUP02-03112021
2.4
125
1.1
12/14/2016
MW-7-14122016
1.1
2/1 5/2017
MW-7-15022017
0.75
5/17/2017
MW-7-17052017
0.14
8.7
0.14
8/1 5/2017
MW-7-15082017
1.4
11/16/2017
MW-7-16112017
2/21/2018
MW-7-21022018
0.98
12/9/2019
MW-7-09122019
12/12/2019
MW-7-12122019
1.7
MW-07
2/25/2020
MW-7-25022020
3.2
6/1 5/2020
MW-7-15062020
21.6
8/26/2020
MW-7-26082020
5.1
11/18/2020
MW-7-18112020
1.8
3/10/2021
MW-7-10032021
1.2
5/25/2021
MW-7-25052021
6/4/2021
MW-7-04062021
53.2
8/18/2021
MW-7-18082021
7.4
11/2/2021
MW-7-02112021
3.8
8 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
Benzene
bis(2-
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-43-2
117-81-7
75-27-4
74-83-9
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-09
12/14/2016
MW-9-14122016
0.55
61.0
0.21
2/17/2017
MW-9-17022017
0.83
69.9
0.28
5/18/2017
MW-9-18052017
0.83
60.2
0.23
8/17/2017
MW-9-17082017
0.22
23.2
11/17/2017
MW-9-17112017
20.7
2/22/2018
MW-9-22022018
26.1
12/11/2019
MW-9-11121019
8.3
2/25/2020
MW-9-25022020
4.8
6/1 5/2020
MW-9-15062020
1.4
8/26/2020
MW-9-26082020
3.0
11/18/2020
MW-9-18112020
42.1
3/22/2021
MW-9-22032021
28.4
5/26/2021
MW-9-26052021
13.6
8/18/2021
MW-9-18082021
5.5
11/3/2021
MW-9-03112021
7.9
MW-14
12/20/2016
MW-14-20122016
5/16/2017
MW-14-16052017
0.99
8/14/2017
MW-14-14082017
1.5
MW-15
12/20/2016
MW-15-20122016
2/16/2017
MW-15-16022017
5/17/2017
MW-15-17052017
8/16/2017
MW-15-16082017
11/16/2017
MW-15-16112017
2/22/2018
MW-15-22022018
12/10/2019
MW-15-10122019
2/25/2020
MW-15-25022020
6/16/2020
MW-15-16062020
8/25/2020
MW-15-2582020
11/18/2020
MW-15-18112020
3/10/2021
MW-15-10032021
5/25/2021
MW-15-25052021
8/18/2021
MW-15-18082021
11/3/2021
MW-15-03112021
MW-15A
12/1 5/2016
MW-15A-15122016
0.068
2/16/2017
MW-15A-16022017
5/17/2017
MW-15A-17052017
0.56
8/1 5/2017
MW-15A-15082017
11/16/2017
MW-15A-16112017
2/21/2018
MW-15A-21022018
12/9/2019
MW-15A-09122019
2/24/2020
MW-15A-24022020
6/1 5/2020
MW-15A-15062020
8/25/2020
MW-15A-25082020
11/17/2020
MW-15A-17112020
3/10/2021
MW-15A-10032021
5/25/2021
MW-15A-25052021
8/18/2021
MW-15A-18082021
11/4/2021
MW-15A-04112021
9 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
Benzene
bis(2-
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-43-2
117-81-7
75-27-4
74-83-9
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-15B
12/1 5/2016
MW-15B-15122016
0.59
44.3
0.13
0.19
0.062
2/17/2017
MW-15B-17022017
0.56
41.4
5/18/2017
MW-15B-18052017
0.36
28.1
8/16/2017
MW-15B-16082017
0.72
32.1
11/16/2017
MW-15B-16112017
0.75
45.5
2/22/2018
MW-15B-22022018
35.1
12/11/2019
MW-15B-11122019
49.5
2/25/2020
MW-15B-25022020
34.3
6/16/2020
MW-15B-16062020
45.4
8/27/2020
MW-15B-27082020
68.7
11/19/2020
MW-15B-19112020
64.9
3/22/2021
MW-15B-22032021
36.6
5/26/2021
MW-15B-26052021
46.5
8/18/2021
MW-15B-18082021
62.7
11/4/2021
MW-15B-04112021
49.6
MW-16
12/20/2016
MW-16-20122016
2/14/2017
MW-16-14022017
2/14/2017
MW-DUP01-14022017
5/16/2017
MW-16-16052017
0.92
5/16/2017
MW-DUP01-16052017
0.97
8/14/2017
MW-16-14082017
1.1
8/14/2017
MW-DUP01-14082017
11/15/2017
MW-16-15112017
1.3
J
11/15/2017
MW-DUP01 -15112017
1.4
2/20/2018
MW-16-20022018
2/20/2018
MW-DUP01-20022018
12/6/2019
MW-16-06122019
12/6/2019
MW-DUP01 -06122019
2/24/2020
MW-16-24022020
2/24/2020
MW-DUP01-24022020
6/11/2020
MW-16-11062020
6/11/2020
MW-DUP01-11062020
8/24/2020
MW-16-24082020
8/24/2020
MW-DUP01-24082020
11/17/2020
MW-16-17112020
11/17/2020
MW-DUP01-17112020
3/9/2021
MW-16-09032020
3/9/2021
MW-DUP01-09032021
5/25/2021
MW-16-25052021
MW-16B
12/22/2016
MW-16B-22122016
2/1 5/2017
MW-16B-15022017
5/17/2017
MW-16B-17052017
8/14/2017
MW-16B-14082017
0.52
U
11/15/2017
MW-16B-15112017
2/21/2018
MW-16B-21022018
12/6/2019
MW-16B-06122019
2/24/2020
MW-16B-24022020
6/1 5/2020
MW-16B-15062020
8/25/2020
MW-16B-25082020
11/17/2020
MW-16B-17112020
3/9/2021
MW-16B-09032021
6/4/2021
MW-16B-04062021
8/17/2021
MW-16B-17082021
11/4/2021
MW-16B-04112021
10 of 18
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
Benzene
bis(2-
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-43-2
117-81-7
75-27-4
74-83-9
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-21R
12/16/2016
MW-21 R-16122016
2/1 5/2017
MW-21 R-15022017
5/17/2017
MW-21 R-17052017
0.68
8/1 5/2017
MW-21 R-15082017
11/15/2017
MW-21 R-15112017
2/21/2018
MW-21 R-21022018
0.6
12/10/2019
MW-21 R-10122019
2/25/2020
MW-21 R-25022020
6/16/2020
MW-21 R-16062020
8/26/2020
MW-21 R-26082020
11/18/2020
MW-21 R-18112020
3/11/2021
MW-21 R-11032021
5/26/2021
MW-21 R-26052021
8/18/2021
MW-21 R-18082021
11/4/2021
MW-21 R-04112021
MW-22
12/16/2016
MW-22-16122016
2/1 5/2017
MW-22-15022017
5/17/2017
MW-22-17052017
8/16/2017
MW-22-16082017
11/16/2017
MW-22-16112017
2/22/2018
MW-22-22022018
12/10/2019
MW-22-10122019
2/25/2020
MW-22-25022020
6/16/2020
MW-22-16062020
8/25/2020
MW-22-25082020
11/18/2020
MW-22-18112020
3/10/2021
MW-22-10032021
5/26/2021
MW-22-26052021
8/18/2021
MW-22-18082021
11/4/2021
MW-22-04112021
EA-221 B
12/19/2016
EA-221 B-19122016
2/16/2017
EA-221 B-16022017
5/17/2017
EA-221 B-17052017
0.82
8/16/2017
EA-221 B-16082017
11/17/2017
EA-221 B-17112017
2/22/2018
EA-221 B-22022018
12/10/2019
EA-221 B-10122019
2/26/2020
EA-221 B-26022020
6/17/2020
EA-221 B-17062020
8/27/2020
EA-221 B-27082020
11/18/2020
EA-221 B-18112020
3/11/2021
EA-221 B-11032021
5/26/2021
EA-221 B-26052021
8/19/2021
EA-221 B-19082021
11/3/2021
EA-221 B-03112021
11 of 18
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
Benzene
bis(2-
Ethylhexyl)phthalate
Bromodichloromethane
Bromomethane
Chlorobenzene
Chlorodibromomethane
Chloroethane
Chloroform
Chloromethane
Ethylbenzene
Isopropylbenzene
Naphthalene
CAS#
71-43-2
117-81-7
75-27-4
74-83-9
108-90-7
124-48-1
75-00-3
67-66-3
74-87-3
100-41-4
98-82-8
91-20-3
Project Quantitation Limit Goal*
5
6
80
7.5 n
100
80
21000"
80
190"
700
450"
6.1 ca
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EA-222B
12/22/2016
EA-222B-22122016
2.6
0.99
0.2
2.8
2/1 5/2017
EA-222B-1 5022017
0.42
0.10
2.0
5/16/2017
EA-222B-16052017
0.13
1.0
0.63
5/18/2017
EA-222B-18052017
0.84
8/1 5/2017
EA-222B-1 5082017
3.6
0.19
2/19/2018
EA-222B-19022018
12/6/2019
EA-222B-06122019
2/20/2020
EA-222B-20022020
6/1 5/2020
EA-222B-1 5062020
8/25/2020
EA-222B-25082020
11/17/2020
EA-222B-17112020
3/9/2021
EA-222B-09032021
6/4/2021
EA-222B-04062021
8/17/2021
EA-222B-17082021
11/2/2021
EA-222B-02112021
EA-223B
12/19/2016
EA-223B-19122016
0.20
2/16/2017
EA-223B-16022017
0.23
5/25/2017
EA-223B-25052017
0.28
8/17/2017
EA-223B-17082017
0.32
11/17/2017
EA-223B-17112017
0.54
2/23/2018
EA-223B-23022018
1.3
12/11/2019
EA-223B-11122019
2/26/2020
EA-223B-26022020
6/17/2020
EA-223B-17062020
8/27/2020
EA-223B-27082020
11/19/2020
EA-223B-19112020
3/22/2021
EA-223B-22032021
5/26/2021
EA-223B-26052021
8/19/2021
EA-223B-19082021
11/3/2021
EA-223B-03112021
12 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000"
660"
5800"
None
2000"
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
IS-6
5/15/2017
IS-6-15052017
8/14/2017
IS-6-14082017
MW-02
5/15/2017
MW-2-15052017
MW-03
12/14/2016
MW-3-14122016
2/14/2017
MW-3-14022017
5/16/2017
MW-3-16052017
8/15/2017
MW-3-15082017
11/15/2017
MW-3-15112017
2/20/2018
MW-3-20022018
12/9/2019
MW-3-09122019
2/24/2020
MW-3-24022020
6/15/2020
MW-3-15062020
8/25/2020
MW-3-25082020
11/17/2020
MW-3-17112020
3/9/2021
MW-3-09032021
6/4/2021
MW-3-04062021
8/17/2021
MW-3-17082021
11/4/2021
MW-3-04112021
MW-04
12/14/2016
MW-4-14122016
2/14/2017
MW-4-14022017
5/16/2017
MW-4-16052017
8/17/2017
MW-4-17082017
11/16/2017
MW-4-16112017
2/20/2018
MW-4-20022018
12/9/2019
MW-4-09122019
2/25/2020
MW-4-25022020
6/15/2020
MW-4-15062020
8/26/2020
MW-4-26082020
11/18/2020
MW-4-18112020
3/10/2021
MW-4-10032021
6/4/2021
MW-4-04062021
8/19/2021
MW-4-19082021
11/2/2021
MW-4-02112021
MW-05
12/20/2016
MW-5-20122016
2/17/2017
MW-5-17022017
5/18/2017
MW-5-18052017
8/16/2017
MW-5-16082017
11/17/2017
MW-5-17112017
2/22/2018
MW-5-22022018
12/11/2019
MW-5-11122019
2/25/2020
MW-5-25022020
6/16/2020
MW-5-16062020
8/26/2020
MW-5-26082020
11/18/2020
MW-5-18112020
3/22/2021
MW-5-22032021
5/26/2021
MW-5-26052021
8/18/2021
MW-5-18082021
11/3/2021
MW-5-03112021
13 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51
-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000
n
660
n
5800"
None
2000
n
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
12/22/2016
MW-6-22122016
0.44
1.4
0.41
7.7
12/22/2016
DUP-02-22122016
0.46
0.41
7.9
2/16/2017
MW-6-16022017
0.50
0.30
0.41
0.51
0.47
18.1
2/16/2017
MW-DUP02-16022017
0.50
0.29
0.38
0.50
0.47
17.9
5/18/2017
MW-6-18052017
0.69
0.30
1.2
0.10
0.47
0.38
30.6
5/18/2017
MW-DUP02-18052017
0.72
0.29
1.3
0.47
0.39
40
29.6
8/17/2017
MW-6-17082017
0.67
2
9.6
8/17/2017
MW-DUP02-17082017
0.59
1.8
9.5
11/17/2017
MW-6-17112017
0.61
12
6.2
11/17/2017
MW-DUP02-17112017
0.57
1.3
18
5.2
2/23/2018
MW-6-23022018
1.0
1.5
0.53
0.86
92
27
75
12.1
2/23/2018
MW-DUP-02-23022018
0.99
1.3
0.51
0.89
92
20
65
11.6
12/11/2019
MW-6-11122019
12/11/2019
MW-DUP02-11122019
2/26/2020
MW-6-26022020
MW-06
2/26/2020
MW-DUP02-26022020
6/16/2020
MW-6-16062020
6/16/2020
MW-DUP02-16062020
6/16/2020
MW-DUP-02-16062020
8/26/2020
MW-6-26082020
8/26/2020
MW-DUP02-26082020
11/19/2020
MW-6-19112020
11/19/2020
MW-DUP02-19112020
3/22/2021
MW-6-22032021
3/22/2021
MW-DUP02-22032021
5/26/2021
MW-6-26052021
5/26/2021
MW-DUP02-26052021
8/19/2021
MW-6-19082021
8/19/2021
MW-DUP02-19082021
11/3/2021
MW-6-03112021
0.53
0.52
11/3/2021
MW-DUP02-03112021
12/14/2016
MW-7-14122016
2/15/2017
MW-7-15022017
5/17/2017
MW-7-17052017
0.15
1.5
8/15/2017
MW-7-15082017
11/16/2017
MW-7-16112017
2/21/2018
MW-7-21022018
12/9/2019
MW-7-09122019
12/12/2019
MW-7-12122019
MW-07
2/25/2020
MW-7-25022020
6/15/2020
MW-7-15062020
8/26/2020
MW-7-26082020
11/18/2020
MW-7-18112020
3/10/2021
MW-7-10032021
5/25/2021
MW-7-25052021
6/4/2021
MW-7-04062021
8/18/2021
MW-7-18082021
11/2/2021
MW-7-02112021
14 of 18
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000"
660"
5800"
None
2000"
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-09
12/14/2016
MW-9-14122016
0.12
1.3
2/17/2017
MW-9-17022017
1.8
5/18/2017
MW-9-18052017
0.14
2.3
8/17/2017
MW-9-17082017
0.69
11/17/2017
MW-9-17112017
2/22/2018
MW-9-22022018
12/11/2019
MW-9-11121019
2/25/2020
MW-9-25022020
6/15/2020
MW-9-15062020
8/26/2020
MW-9-26082020
11/18/2020
MW-9-18112020
3/22/2021
MW-9-22032021
5/26/2021
MW-9-26052021
8/18/2021
MW-9-18082021
11/3/2021
MW-9-03112021
MW-14
12/20/2016
MW-14-20122016
5/16/2017
MW-14-16052017
8/14/2017
MW-14-14082017
MW-15
12/20/2016
MW-15-20122016
2/16/2017
MW-15-16022017
5/17/2017
MW-15-17052017
8/16/2017
MW-15-16082017
11/16/2017
MW-15-16112017
0.15
2/22/2018
MW-15-22022018
12/10/2019
MW-15-10122019
2/25/2020
MW-15-25022020
6/16/2020
MW-15-16062020
8/25/2020
MW-15-2582020
11/18/2020
MW-15-18112020
3/10/2021
MW-15-10032021
5/25/2021
MW-15-25052021
8/18/2021
MW-15-18082021
11/3/2021
MW-15-03112021
MW-15A
12/15/2016
MW-15A-15122016
2/16/2017
MW-15A-16022017
5/17/2017
MW-15A-17052017
8/15/2017
MW-15A-15082017
11/16/2017
MW-15A-16112017
2/21/2018
MW-15A-21022018
12/9/2019
MW-15A-09122019
2/24/2020
MW-15A-24022020
6/15/2020
MW-15A-15062020
8/25/2020
MW-15A-25082020
11/17/2020
MW-15A-17112020
3/10/2021
MW-15A-10032021
5/25/2021
MW-15A-25052021
8/18/2021
MW-15A-18082021
11/4/2021
MW-15A-04112021
15 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000"
660"
5800"
None
2000"
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-15B
12/15/2016
MW-15B-15122016
0.14
0.065
0.12
0.18
19
1.6
2/17/2017
MW-15B-17022017
0.87
5/18/2017
MW-15B-18052017
20
8/16/2017
MW-15B-16082017
18
11/16/2017
MW-15B-16112017
2/22/2018
MW-15B-22022018
12/11/2019
MW-15B-11122019
2/25/2020
MW-15B-25022020
6/16/2020
MW-15B-16062020
8/27/2020
MW-15B-27082020
11/19/2020
MW-15B-19112020
3/22/2021
MW-15B-22032021
5/26/2021
MW-15B-26052021
8/18/2021
MW-15B-18082021
11/4/2021
MW-15B-04112021
MW-16
12/20/2016
MW-16-20122016
2/14/2017
MW-16-14022017
2/14/2017
MW-DUP01-14022017
5/16/2017
MW-16-16052017
5/16/2017
MW-DUP01-16052017
8/14/2017
MW-16-14082017
8/14/2017
MW-DUP01-14082017
11/15/2017
MW-16-15112017
11/15/2017
MW-DUP01 -15112017
2/20/2018
MW-16-20022018
2/20/2018
MW-DUP01-20022018
12/6/2019
MW-16-06122019
12/6/2019
MW-DUP01 -06122019
2/24/2020
MW-16-24022020
2/24/2020
MW-DUP01-24022020
6/11/2020
MW-16-11062020
6/11/2020
MW-DUP01-11062020
8/24/2020
MW-16-24082020
8/24/2020
MW-DUP01-24082020
11/17/2020
MW-16-17112020
11/17/2020
MW-DUP01-17112020
3/9/2021
MW-16-09032020
3/9/2021
MW-DUP01-09032021
5/25/2021
MW-16-25052021
MW-16B
12/22/2016
MW-16B-22122016
2/15/2017
MW-16B-15022017
5/17/2017
MW-16B-17052017
8/14/2017
MW-16B-14082017
11/15/2017
MW-16B-15112017
2/21/2018
MW-16B-21022018
12/6/2019
MW-16B-06122019
2/24/2020
MW-16B-24022020
6/15/2020
MW-16B-15062020
8/25/2020
MW-16B-25082020
11/17/2020
MW-16B-17112020
3/9/2021
MW-16B-09032021
6/4/2021
MW-16B-04062021
8/17/2021
MW-16B-17082021
11/4/2021
MW-16B-04112021
16 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000"
660"
5800"
None
2000"
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
MW-21R
12/16/2016
MW-21 R-16122016
2/15/2017
MW-21 R-15022017
5/17/2017
MW-21 R-17052017
8/15/2017
MW-21 R-15082017
11/15/2017
MW-21 R-15112017
2/21/2018
MW-21 R-21022018
12/10/2019
MW-21 R-10122019
2/25/2020
MW-21 R-25022020
6/16/2020
MW-21 R-16062020
8/26/2020
MW-21 R-26082020
11/18/2020
MW-21 R-18112020
3/11/2021
MW-21 R-11032021
5/26/2021
MW-21 R-26052021
8/18/2021
MW-21 R-18082021
11/4/2021
MW-21 R-04112021
MW-22
12/16/2016
MW-22-16122016
2/15/2017
MW-22-15022017
5/17/2017
MW-22-17052017
8/16/2017
MW-22-16082017
11/16/2017
MW-22-16112017
2/22/2018
MW-22-22022018
12/10/2019
MW-22-10122019
2/25/2020
MW-22-25022020
6/16/2020
MW-22-16062020
8/25/2020
MW-22-25082020
11/18/2020
MW-22-18112020
3/10/2021
MW-22-10032021
5/26/2021
MW-22-26052021
8/18/2021
MW-22-18082021
11/4/2021
MW-22-04112021
EA-221 B
12/19/2016
EA-221 B-19122016
2/16/2017
EA-221 B-16022017
5/17/2017
EA-221 B-17052017
8/16/2017
EA-221 B-16082017
11/17/2017
EA-221 B-17112017
2/22/2018
EA-221 B-22022018
12/10/2019
EA-221 B-10122019
2/26/2020
EA-221 B-26022020
6/17/2020
EA-221 B-17062020
8/27/2020
EA-221 B-27082020
11/18/2020
EA-221 B-18112020
3/11/2021
EA-221 B-11032021
5/26/2021
EA-221 B-26052021
8/19/2021
EA-221 B-19082021
11/3/2021
EA-221 B-03112021
17 of 1 8
-------
Table 2
Analytes Detected at the Site
Syntex Facility Superfund Site - Verona, MO
Chemical
n-Butylbenzene
n-Propylbenzene
Phenol
p-lsopropyltoluene
sec-Butylbenzene
Toluene
Total PeCDF
Total TCDD
Total TCDF
Xylenes, Total
CAS#
104-51-8
103-65-1
108-95-2
99-87-6
135-98-8
108-88-3
30402-15-4
41903-57-5
55722-27-5
1330-20-7
Project Quantitation Limit Goal*
1000"
660"
5800"
None
2000"
1000
None
None
None
10000
Units
ug/L
ug/L
ug/L
ug/L
ug/L
ug/L
pg/L
pg/L
pg/L
ug/L
Well
Date
Sample ID
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EA-222B
12/22/2016
EA-222B-22122016
2/15/2017
EA-222B-1 5022017
5/16/2017
EA-222B-16052017
5/18/2017
EA-222B-18052017
8/15/2017
EA-222B-1 5082017
2/19/2018
EA-222B-19022018
12/6/2019
EA-222B-06122019
2/20/2020
EA-222B-20022020
6/15/2020
EA-222B-1 5062020
8/25/2020
EA-222B-25082020
11/17/2020
EA-222B-17112020
3/9/2021
EA-222B-09032021
6/4/2021
EA-222B-04062021
8/17/2021
EA-222B-17082021
11/2/2021
EA-222B-02112021
EA-223B
12/19/2016
EA-223B-19122016
2/16/2017
EA-223B-16022017
5/25/2017
EA-223B-25052017
8/17/2017
EA-223B-17082017
11/17/2017
EA-223B-17112017
2/23/2018
EA-223B-23022018
12/11/2019
EA-223B-11122019
2/26/2020
EA-223B-26022020
6/17/2020
EA-223B-17062020
8/27/2020
EA-223B-27082020
11/19/2020
EA-223B-19112020
3/22/2021
EA-223B-22032021
5/26/2021
EA-223B-26052021
8/19/2021
EA-223B-19082021
11/3/2021
EA-223B-03112021
Notes:
* Project Quantitation Limit Goals (PQLG) are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
Bold values exceed PQLG
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
- No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
No data for MW-10 are shown because all results are non-detect.
18 of 1 8
-------
Table 3
Trench Area Groundwater Data Summary (TA-111)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-111
TA-111
TA-111
TA-111
TA-111
TA-111
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
-
< 0.070 U
< 0.07 U
-
< 0.07 U
-
< 0.2 U
-
< 1 U
-
< 0.2 U
-
EPA 604.1
Hexachlorophene
70-30-4
6"
ug/L
< 10 U
< 10.6 U
< 10.0 U
< 10.0 u
< 10.1 U
< 10.1 U
< 9.6 U
< 9.6 U
< 9.8 U
< 9.9 U
< 9.9 U
< 10.1 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57 c
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1,1 -Trichloroethane
71-55-6
200
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1,2,2-Tetrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1 -Dichloroethane
75-34-3
2.8 c
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1 -Dichloroethene
75-35-4
7
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,1 -Dichloropropene
563-58-6
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2,3-Trichlorobenzene
87-61-6
7 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2,3-Trichloropropane
96-18-4
0.075 c'a
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2,4-Trichlorobenzene
120-82-1
70
ug/L
<0.5 U
-
<0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2,4-Trimethylbenzene
95-63-6
15 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2-Dibromo-3 -chloropropane
96-12-8
0.2
ug/L
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,3,5-Trimethylbenzene
108-67-8
120 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,3 -Dichlorobenzene
541-73-1
None
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,3 -Dichloropropane
142-28-9
370 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
2-Butanone
78-93-3
5600 11
ug/L
<5 U
-
<5 U
-
< 5 U
-
<5 U
-
<5 U
-
< 5 U
-
EPA 8260B
2-Chlorotoluene
95-49-8
240 11
ug/L
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
2-Hexanone
591-78-6
38 11
ug/L
<5 U
-
<5 U
-
< 5 U
-
<5 U
-
<5 U
-
< 5 U
-
EPA 8260B
4-Chlorotoluene
106-43-4
250 11
ug/L
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300 11
ug/L
<5 U
-
<5 U
-
< 5 U
-
<5 U
-
<5 U
-
< 5 U
-
EPA 8260B
Acetone
67-64-1
14000 11
ug/L
< 10 U
-
< 10 U
-
< 10 U
-
<10U
-
12
-
<10U
-
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Bromobenzene
108-86-1
62 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Bromochloromethane
74-97-5
83 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.5 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
Bromomethane
74-83-9
7.5 11
ug/L
< 20 U
-
< 5 U
-
< 5 U
-
<5 U
-
<5 U
-
<5 U
-
EPA 8260B
Carbon Disulfide
75-15-0
810 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chloroethane
75-00-3
21000 11
ug/L
< 2 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
Page 1 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-111)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-111
TA-111
TA-111
TA-111
TA-111
TA-111
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qual
EPA 8260B
Chloromethane
74-87-3
190 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
<0.5 U
-
<0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
cis-1,3 -Dichloropropene
10061-01-5
0.47
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Dibromomethane
74-95-3
8.3 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Dichlorodifluoromethane
75-71-8
200 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Fluorotrichloromethane
75-69-4
5200 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.6 U
-
EPA 8260B
Isopropylbenzene
98-82-8
450 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
<5 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Naphthalene
91-20-3
6.1 ca
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.6 U
-
EPA 8260B
n-Butylbenzene
104-51-8
1000 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
n-Propylbenzene
103-65-1
660 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
p-Isopropyltoluene
99-87-6
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
sec-Butylbenzene
135-98-8
2000 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Styrene
100-42-5
100
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
tert-Butylbenzene
98-06-6
690 11
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
T etrachloroethene
127-18-4
5
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Toluene
108-88-3
1000
ug/L
< 0.5 U
-
<0.5 U
-
< 0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
trans-1,3 -Dichloropropene
10061-02-6
0.47
ug/L
<0.5 U
-
<0.5 U
-
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.5 U
-
< 0.5 U
-
< 0.5 U
-
0.73
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
<0.5 U
-
<0.5 U
-
<0.5 U
-
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
EPA 8270D
2,2'-oxybis( 1 -Chloropropane)
108-60-1
710 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2,4,6-Trichlorophenol
88-06-2
4.1 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2,4-Dichlorophenol
120-83-2
46 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2,4-Dimethylphenol
105-67-9
360 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2,4-Dinitrophenol
51-28-5
39 11
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2-Chloronaphthalene
91-58-7
750 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2-Chlorophenol
95-57-8
91 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2-Methylnaphthalene
91-57-6
36 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2-Methylphenol
95-48-7
930 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
2-Nitroaniline
88-74-4
190 11
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930 11
ug/L
< 2 U
-
< 2.0 U
-
< 2.0 U
-
< 2 U
-
< 2 U
-
<2.1 U
-
EPA 8270D
3,3 -Dichlorobenzidine
91-94-1
13 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5"
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
Page 2 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-111)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-111
TA-111
TA-111
TA-111
TA-111
TA-111
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qual
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1 U
-
< 1.0 U
-
< 1.0 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
4-Chloroaniline
106-47-8
37 c"a
ug/L
< 1 u
-
< 1.0U
-
< 1.0U
-
< 1 u
-
< 1 u
-
< 1 u
-
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1 u
-
< 1.0U
-
< 1.0U
-
< 1 u
-
< 1 u
-
< 1 u
-
EPA 8270D
4-Nitroaniline
100-01-6
3.8 c
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1 U
-
<1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Acenaphthene
83-32-9
530 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.5 U
-
< 2.6 U
-
< 2.5 U
-
<2.5 U
-
<2.5 U
-
< 2.6 U
-
EPA 8270D
Anthracene
120-12-7
1800 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Benzo(a)anthracene
56-55-3
1.2 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1 U
-
< 1.0 U
-
< 1.0 u
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Benzoic Acid
65-85-0
75000 11
ug/L
< 25.4 U
-
<25.5 U
-
< 25.0 U
-
<25.1 U
-
< 14.9 U
-
< 15.4 U
-
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Chrysene
218-01-9
3.4 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Dibenzofuran
132-64-9
7.9 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Diethylphthalate
84-66-2
15000 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Di-n-butylphthalate
84-74-2
900 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Di-n-octylphthalate
117-84-0
200 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Fluor anthene
206-44-0
800 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Fluor ene
86-73-7
290 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Flexachlorobenzene
118-74-1
1
ug/L
< 1 U
-
< 1.0 u
-
< 1.0 u
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Flexachlorocyclopentadiene
77-47-4
50
ug/L
< 1 U
-
< 1.0 u
-
< 1.0 u
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Flexachloroethane
67-72-1
6.2 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Indeno(l,2,3-cd)pyrene
193-39-5
3.4 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Isophorone
78-59-1
78 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Nitrobenzene
98-95-3
13 c'a
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 u
-
< 1 u
-
< 1 U
-
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
1.1 ca
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 u
-
< 1 u
-
< 1 U
-
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 u
-
< 1 u
-
< 1 u
-
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
<2.5 U
-
< 2.6 U
-
<2.5 U
-
< 2.5 U
-
< 2.5 U
-
< 2.6 U
-
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Phenol
108-95-2
5800 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8270D
Pyrene
129-00-0
120 11
ug/L
< 1 U
-
< 1.0U
-
< 1.0U
-
< 1 U
-
< 1 U
-
< 1 U
-
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
Page 3 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-111)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-111
TA-111
TA-111
TA-111
TA-111
TA-111
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qua
Result
Val Qual
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
Pg/L
< 10 U
-
< 10 U
< 10 U
< 10 U
< 10 U
<10U
<10U
<10U
<10U
<10U
<10U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
Pg/L
< 10 U
-
< 10 U
< 10 U
< 10 U
< 10 U
<10U
<10U
<10U
<10U
<10U
<10U
SW846 8290
OCDD
3268-87-9
None
Pg/L
<100U
-
<100U
<100U
<100U
<100U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
Pg/L
<100U
-
<100U
<100U
<100U
<100U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDD
34465-46-8
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
Pg/L
< 10 U
-
< 10 U
< 10 U
< 10 U
< 10 U
<10U
<10U
<10U
<10U
<10U
<10U
SW846 8290
Total TCDF
55722-27-5
None
Pg/L
< 10 U
-
< 10 U
< 10 U
< 10 U
< 10 U
<10U
<10U
<10U
<10U
<10U
<10U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10'4
— No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J+ The result is an estimated quantity, but the result may be biased high.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
Abbreviations:
< = less than
CAS = chemical abstracts service
FD = field duplicate
ID = identification
MCL = maximum contaminant level
MDNR = Missouri Department of Natural Resources
pg/L = picograms per liter (parts per quadrillion)
RSL = regional screening level
ug/L = micrograms per liter (parts per billion)
USEPA = United States Environmental Protection Agency
Page 4 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-117)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-117
TA-117
TA-117
TA-117
TA-117
TA-117
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
15.5
14.8
16.2
18.9
J+
18.8
15.8
18.6
12.3
12.5
14.2
15.5
12.4
J-
12.9
J-
EPA 604.1
Hexachlorophene
70-30-4
n, a
6
ug/L
< 10.0 U
-
-
< 10.0 U
-
< 10.1 U
-
< 9.6 U
-
< 10.8 U
-
< 10 U
-
EPA 826OB
1,1,1,2-Tetrachloroethane
630-20-6
0.57 c
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,1,1-Trichloroethane
71-55-6
200
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
EPA 826OB
1,1,2,2-Tetrachloroethane
79-34-5
7.6 c'a
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
EPA 826OB
1,1-Dichloroethane
75-34-3
2.8 c
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,1-Dichloroethene
75-35-4
7
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,1-Dichloropropene
563-58-6
None
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2,3-Trichlorobenzene
87-61-6
7°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2,3-Trichloropropane
96-18-4
0.075 c>a
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2,4-Trichlorobenzene
120-82-1
70
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2,4-Trimethylbenzene
95-63-6
15°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
l,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 2 U
-
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 826OB
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,3,5-Trimethylbenzene
108-67-8
120°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,3-Dichlorobenzene
541-73-1
None
ug/L
0.177
-
0.173
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,3-Dichloropropane
142-28-9
370°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
1,4-Dichlorobenzene
106-46-7
75
ug/L
2.15
-
2.17
1.1
0.97
0.89
0.8
1.7
1.7
1.1
1.1
0.88
1.1
EPA 826OB
2,2-Dichloropropane
594-20-7
None
ug/L
< 2 U
-
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 826OB
2-Butanone
78-93-3
5600°
ug/L
< 5 U
-
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
EPA 826OB
2-Chlorotoluene
95-49-8
240°
ug/L
< 1U
-
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
EPA 826OB
2-Hexanone
591-78-6
CO
ro
ug/L
< 5 U
-
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
EPA 826OB
4-Chlorotoluene
106-43-4
250°
ug/L
< 1U
-
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
EPA 826OB
4-Methyl-2-pentanone
108-10-1
6300°
ug/L
< 5 U
-
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
EPA 826OB
Acetone
67-64-1
14000 °
ug/L
38.5
-
61.5
J
34.9
40.7
10.1
10.9
19
15.3
50
55.5
50.4
J
35
J
EPA 826OB
Benzene
71-43-2
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Bromobenzene
108-86-1
62°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Bromochloromethane
74-97-5
ro
CO
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Bromodichloromethane
75-27-4
80
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Bromoform
75-25-2
80
ug/L
< 0.5 U
-
<0.5 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 826OB
Bromomethane
74-83-9
7.5 °
ug/L
< 20 U
-
< 20 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
< 5 U
EPA 826OB
Carbon Disulfide
75-15-0
O
CO
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
EPA 826OB
Chlorobenzene
108-90-7
100
ug/L
1.91
-
1.8
1.8
2
2.9
2
9.6
9.3
1.9
2
1.9
1.9
EPA 826OB
Chlorodibromomethane
124-48-1
80
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Chloroethane
75-00-3
21000 °
ug/L
< 2 U
-
< 2 U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
1.2
1.1
EPA 826OB
Chloroform
67-66-3
80
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Chloromethane
74-87-3
190°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
0.59
0.62
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
cis- 1,2-Dichloroethene
156-59-2
70
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
cis-l,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Dibromom ethane
74-95-3
ro
CO
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Dichlorodifluoromethane
75-71-8
200°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
Page 5 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-117)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-117
TA-117
TA-117
TA-117
TA-117
TA-117
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 826OB
Ethylbenzene
100-41-4
700
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Fluorotrichloromethane
75-69-4
5200°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Hexachlorobutadiene
87-68-3
6.5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.6 U
< 0.6 U
EPA 826OB
Isopropylbenzene
98-82-8
450°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Methylene Chloride
75-09-2
5
ug/L
< 5 U
-
< 5 U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
< 1U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14 c
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Naphthalene
91-20-3
6.1 ca
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.6 U
< 0.6 U
EPA 826OB
n-Butylbenzene
104-51-8
1000°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
n-Propylbenzene
103-65-1
660°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
p-Isopropyltoluene
99-87-6
None
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
s ec-Butylb enzene
135-98-8
2000°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Styrene
100-42-5
100
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
<0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
tert-Butylb enzene
98-06-6
690°
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Tetrachloroethene
127-18-4
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Toluene
108-88-3
1000
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
trans- 1,2-Dichloroethene
156-60-5
100
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 826OB
Trichloroethene
79-01-6
5
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
< 0.5 U
-
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 1.5 U
-
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
EPA 8270D
2,2'-oxybis(l-Chloropropane)
108-60-1
710°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2,4,6-Trichlorophenol
88-06-2
4.1c
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2,4-Dichlorophenol
120-83-2
46°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2,4-Dimethylphenol
105-67-9
360°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2,4-Dinitrophenol
51-28-5
39°
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c'a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 c'a
ug/L
2.1
-
-
< 1.1U
-
1.6
-
1.5
-
< 0.97 U
-
1.3
-
EPA 8270D
2-Chloronaphthalene
91-58-7
750°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2-Chlorophenol
95-57-8
91°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2-Methylnaphthalene
91-57-6
36°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2-Methylphenol
95-48-7
930°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
2-Nitroaniline
88-74-4
190°
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930°
ug/L
< 2.3 U
-
-
< 2.2 U
-
< 2.0 U
-
< 2 U
-
< 1.9 U
-
< 2 U
-
EPA 8270D
3,3-Dichlorobenzidine
91-94-1
13 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 °'a
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
4-Chloroaniline
106-47-8
37 c'a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
4-Nitroaniline
100-01-6
3.8 c
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Acenaphthene
83-32-9
530°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
Anthracene
120-12-7
1800°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
Page 6 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-117)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-117
TA-117
TA-117
TA-117
TA-117
TA-117
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Benzo(a)anthracene
56-55-3
1.2 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Benzoic Acid
65-85-0
75000 "
ug/L
< 28.4 U
-
-
< 26.9 U
-
< 24.8 U
-
< 24.6 U
-
< 14.6 U
-
< 14.8 U
-
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
o
©
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
1.6
-
EPA 8270D
Butylbenzylphthalate
85-68-7
16 c
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Chrysene
218-01-9
3.4 c
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Dibenzofuran
132-64-9
7.9°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Diethylphthalate
84-66-2
15000 "
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Di-n-butylphthalate
84-74-2
900°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Di-n-octylphthalate
117-84-0
200°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Fluoranthene
206-44-0
800°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Fluorene
86-73-7
290°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Hexachloroethane
67-72-1
6.2 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Indeno( l,2,3-cd)pyrene
193-39-5
3.4 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Isophorone
78-59-1
78 c
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Nitrobenzene
98-95-3
13 c>a
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
1.1 ca
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.8 U
-
-
< 2.7 U
-
< 2.5 U
-
< 2.5 U
-
< 2.4 U
-
< 2.5 U
-
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Phenol
108-95-2
5800°
ug/L
1.6
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
EPA 8270D
Pyrene
129-00-0
120°
ug/L
< 1.1U
-
-
< 1.1U
-
< 0.99 U
-
< 0.99 U
-
< 0.97 U
-
< 0.99 U
-
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
Pg/L
< 10 U
-
< 10 U
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
Pg/L
< 10 U
-
< 10 U
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
SW846 8290
OCDD
3268-87-9
None
Pg/L
< 100 U
-
< 100 U
< 100 U
-
< 100 U
-
< 100 U
-
< 100 U
-
< 100 U
-
SW846 8290
OCDF
39001-02-0
None
Pg/L
< 100 U
-
< 100 U
< 100 U
-
< 100 U
-
< 100 U
-
< 100 U
-
< 100 U
-
SW846 8290
Total HpCDD
37871-00-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total HpCDF
38998-75-3
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total HxCDD
34465-46-8
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
Page 7 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-117)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-117
TA-117
TA-117
TA-117
TA-117
TA-117
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project Quantitation
Limit Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
SW846 8290
Total HxCDF
55684-94-1
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total PeCDD
36088-22-9
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total PeCDF
30402-15-4
None
Pg/L
< 50 U
-
< 50 U
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total TCDD
41903-57-5
None
Pg/L
< 10 U
-
< 10 U
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
SW846 8290
Total TCDF
55722-27-5
None
Pg/L
< 10 U
-
< 10 U
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 104
— No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J+ The result is an estimated quantity, but the result may be biased high.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
Abbreviations:
< = less than
CAS = chemical abstracts service
FD = field duplicate
ID = identification
MCL = maximum contaminant level
MDNR = Missouri Department of Natural Resources
pg/L = picograms per liter (parts per quadrillion)
RSL = regional screening level
ug/L = micrograms per liter (parts per billion)
USEPA = United States Environmental Protection Agency
Page 8 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46°
ug/L
0.25
0.25
0.41
0.49
0.74
0.21
EPA 604.1
Hexachlorophene
70-30-4
r n, a
6
ug/L
< 10U
< 10.0 U
< 9.9 U
< 10.3 U
< 11 U
< 9.9 U
EPA 8260B
1,1,1,2-T etrachloroethane
630-20-6
0.57°
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1,1 -T richloroethane
71-55-6
200
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1,2,2-T etrachloroethane
79-34-5
7.6 °'a
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1,2-T richloroethane
79-00-5
5
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1 -Dichloroethane
75-34-3
2.8°
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1 -Dichloroethene
75-35-4
7
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,1 -Dichloropropene
563-58-6
None
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2,3-Trichlorobenzene
87-61-6
7 n
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2,3 -T richloropropane
96-18-4
0.075 c'a
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2,4-T richlorobenzene
120-82-1
70
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2,4-Trimethylbenzene
95-63-6
15"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2-Dibromo-3 -chloropropane
96-12-8
0.2
ug/L
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,3,5-Trimethylbenzene
108-67-8
120"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,3-Dichloropropane
142-28-9
370"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 8260B
2-Butanone
78-93-3
5600"
ug/L
<5 U
<5 U
<5 U
<5 U
<5 U
<5 U
EPA 8260B
2-Chlorotoluene
95-49-8
240"
ug/L
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
EPA 8260B
2-Hexanone
591-78-6
38"
ug/L
<5 U
<5 U
<5 U
<5 U
<5 U
<5 U
EPA 8260B
4-Chlorotoluene
106-43-4
250"
ug/L
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
Page 9 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300"
ug/L
<5 U
<5 U
<5 U
<5 U
<5 U
<5 U
EPA 8260B
Acetone
67-64-1
14000 n
ug/L
< 10U
< 10U
< 10U
< 10U
< 10U
< 10U
EPA 8260B
Benzene
71-43-2
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Bromobenzene
108-86-1
62"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Bromochloromethane
74-97-5
83 n
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Bromoform
75-25-2
80
ug/L
<0.5 U
< 2 U
< 2 U
< 2 U
< 2 U
< 2 U
EPA 8260B
Bromomethane
74-83-9
7.5"
ug/L
< 20 U
<5 U
<5 U
<5 U
<5 U
<5 U
EPA 8260B
Carbon Disulfide
75-15-0
810"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Chloroethane
75-00-3
21000"
ug/L
< 2 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
EPA 8260B
Chloroform
67-66-3
80
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Chloromethane
74-87-3
190"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
cis-l,2-Dichloroethene
156-59-2
70
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
cis-l,3-Dichloropropene
10061-01-5
0.47
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Dibromomethane
74-95-3
8.3"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Dichlorodifluoromethane
75-71-8
200"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Fluorotrichloromethane
75-69-4
5200"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Hexachlorobutadiene
87-68-3
6.5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
< 0.6 U
EPA 8260B
Isopropylbenzene
98-82-8
450"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Methylene Chloride
75-09-2
5
ug/L
<5 U
< 1 U
< 1 U
< 1 U
< 1 U
< 1 U
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
14°
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Naphthalene
91-20-3
6.1 c'a
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
< 0.6 U
EPA 8260B
n-Butylbenzene
104-51-8
1000"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
n-Propylbenzene
103-65-1
660"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
Page 10 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8260B
p-Isopropyltoluene
99-87-6
None
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
sec-Butylbenzene
135-98-8
2000"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Styrene
100-42-5
100
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
tert-Butylbenzene
98-06-6
690"
ug/L
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
T etrachloroethene
127-18-4
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Toluene
108-88-3
1000
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
trans-1,2-Dichloroethene
156-60-5
100
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
0.47
ug/L
<0.5 U
< 0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Trichloroethene
79-01-6
5
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
EPA 8260B
Vinyl Chloride
75-01-4
2
ug/L
<0.5 U
<0.5 U
<0.5 U
<0.5 U
<0.5 U
< 0.5 U
EPA 8260B
Xylenes, Total
1330-20-7
10000
ug/L
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
< 1.5 U
EPA 8270D
2,2'-oxybis(l-Chloropropane)
108-60-1
710"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4,6-Trichlorophenol
88-06-2
4.1 c
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
46"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dimethylphenol
105-67-9
360"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dinitrophenol
51-28-5
39"
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
24 c'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
4.9 °'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Chloronaphthalene
91-58-7
750"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
91 "
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
36"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Methylphenol
95-48-7
930"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
2-Nitroaniline
88-74-4
190"
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
EPA 8270D
2-Nitrophenol
88-75-5
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
930"
ug/L
<2.1 U
< 2.0 U
<2.1 U
< 2 U
<2.1 U
< 2 U
EPA 8270D
3,3 -Dichlorobenzidine
91-94-1
13 c'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
None
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
< 2.5 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
1.5 "'a
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
Page 11 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
1400"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
37 c'a
ug/L
< 1 u
< 0.99 U
< 1.0U
< 1 u
< 1 u
< 1 u
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
None
ug/L
< 1 u
< 0.99 U
< 1.0U
< 1 u
< 1 u
< 1 u
EPA 8270D
4-Nitroaniline
100-01-6
3.8°
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
EPA 8270D
4-Nitrophenol
100-02-7
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
530"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthylene
208-96-8
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
13 c
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
EPA 8270D
Anthracene
120-12-7
1800"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1.2 c'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
0.2
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
75000"
ug/L
< 26 U
< 24.8 U
< 25.6 U
<25.3 U
< 15.6 U
< 15.2 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
0.014°
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
6
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
16°
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
3.4°
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
0.34 c'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
7.9"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
15000"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
900"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
200"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
800"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
290"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
1
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
Page 12 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
EPA 8270D
Indeno( 1,2,3 -cd)pyrene
193-39-5
3.4 °'a
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Isophorone
78-59-1
o
00
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Nitrobenzene
98-95-3
13 c'a
ug/L
< 1 u
< 0.99 U
< 1.0U
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodi-n-propylamine
621-64-7
1.1 c'a
ug/L
< 1 u
< 0.99 U
< 1.0U
< 1 u
< 1 u
< 1 u
EPA 8270D
N-Nitrosodiphenylamine
86-30-6
12°
ug/L
< 1 u
< 0.99 U
< 1.0U
< 1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
< 2.6 U
<2.5 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120"
ug/L
< 1 U
< 0.99 U
< 1.0U
< 1 U
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
Pg/L
< 10U
< 10U
< 10U
< 10U
< 10U
< 10U
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
Pg/L
< 10U
< 10U
< 10U
< 10U
< 10U
< 10U
SW846 8290
OCDD
3268-87-9
None
Pg/L
< 100 U
140
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
OCDF
39001-02-0
None
Pg/L
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
< 100 U
SW846 8290
Total HpCDD
37871-00-4
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HpCDF
38998-75-3
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
Page 13 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-118)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-118
TA-118
TA-118
TA-118
TA-118
TA-118
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
N
N
N
N
N
Method
Chemical
CAS#
Quantitatio
n Limit
Goal*
Units
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
SW846 8290
Total HxCDD
34465-46-8
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total HxCDF
55684-94-1
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDD
36088-22-9
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total PeCDF
30402-15-4
None
Pg/L
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
< 50 U
SW846 8290
Total TCDD
41903-57-5
None
Pg/L
< 10U
< 10U
< 10U
< 10U
< 10U
< 10U
SW846 8290
Total TCDF
55722-27-5
None
Pg/L
< 10U
< 10U
< 10U
< 10U
< 10U
< 10U
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tap water Regional Screening Level (cancer)
n USEPA Tap water Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10"4
— No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J+ The result is an estimated quantity, but the result may be biased high.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
Abbreviations:
< = less than
CAS = chemical abstracts service
FD = field duplicate
ID = identification
MCL = maximum contaminant level
MDNR = Missouri Department of Natural Resources
pg/L = picograms per liter (parts per quadrillion)
RSL = regional screening level
ug/L = micrograms per liter (parts per billion)
USEPA = United States Environmental Protection Agency
Page 14 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-119)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-119
TA-119
TA-119
TA-119
TA-119
TA-119
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
Val Qual
EPA 522
1,4-Dioxane
123-91-1
0.46 c
ug/L
0.72
-
0.85
-
0.5
-
0.33
-
0.36
-
0.25
-
EPA 604.1
Hexachlorophene
70-30-4
y n, a
6
ug/L
< 10.2 U
-
< 10.0 U
-
< 9.9 U
-
< 9.5 U
-
< 12.7 U
-
< 9.8 U
-
EPA 8260B
1,1,1,2-Tetrachloroethane
630-20-6
0.57 c
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,1,1 -T richloroethane
71-55-6
200
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,1,2,2-Tetrachloroethane
79-34-5
7.6 c's
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,1,2-Trichloroethane
79-00-5
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,1 -Dichloroethane
75-34-3
00
!1
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2,4-Trichlorobenzene
120-82-1
70
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2,4-Trimethylbenzene
95-63-6
15°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
l,2-Dibromo-3-chloropropane
96-12-8
0.2
ug/L
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
1,2-Dibromoethane
106-93-4
0.05
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichlorobenzene
95-50-1
600
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichloroethane
107-06-2
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichloroethene, Total
540-59-0
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,2-Dichloropropane
78-87-5
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,3,5-Trimethylbenzene
108-67-8
120°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,3-Dichlorobenzene
541-73-1
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,3-Dichloropropane
142-28-9
370°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
1,4-Dichlorobenzene
106-46-7
75
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
2,2-Dichloropropane
594-20-7
None
ug/L
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
2-Butanone
78-93-3
5600°
ug/L
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
EPA 8260B
2-Chlorotoluene
95-49-8
240°
ug/L
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
2-Hexanone
591-78-6
38°
ug/L
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
EPA 8260B
4-Chlorotoluene
106-43-4
250°
ug/L
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
4-Methyl-2-pentanone
108-10-1
6300°
ug/L
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
EPA 8260B
Acetone
67-64-1
14000 11
ug/L
< 10 U
-
< 10 U
-
< 10U
-
< 10 U
-
< 10 U
-
< 10 U
-
EPA 8260B
Benzene
71-43-2
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Bromobenzene
108-86-1
62°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Bromochloromethane
74-97-5
83°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Bromodichloromethane
75-27-4
80
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Bromoform
75-25-2
80
ug/L
< 0.5 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
< 2 U
-
EPA 8260B
Bromomethane
74-83-9
7.5°
ug/L
< 20 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
< 5 U
-
EPA 8260B
Carbon Disulfide
75-15-0
810°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Carbon Tetrachloride
56-23-5
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chlorobenzene
108-90-7
100
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chlorodibromomethane
124-48-1
80
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chloroethane
75-00-3
21000°
ug/L
< 2 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
Chloroform
67-66-3
80
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Chloromethane
74-87-3
190°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
cis-1,2-Dichloroethene
156-59-2
70
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
cis-1,3-Dichloropropene
10061-01-5
0.47
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
Page 15 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-119)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-119
TA-119
TA-119
TA-119
TA-119
TA-119
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
Val Qual
EPA 8260B
Dibromomethane
74-95-3
8.3°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Dichlorodifluoromethane
75-71-8
200°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Ethylbenzene
100-41-4
700
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Fluorotrichloromethane
75-69-4
5200°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Isopropylbenzene
98-82-8
6.5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Methylene Chloride
75-09-2
450°
ug/L
< 5 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
< 1 U
-
EPA 8260B
Methyl-tert-butyl-ether
1634-04-4
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Naphthalene
91-20-3
14 c
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.6 U
-
EPA 8260B
n-Butylbenzene
104-51-8
6.1 cs
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
n-Propylbenzene
103-65-1
1000°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
p-Isopropyltoluene
99-87-6
660°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
sec-Butylbenzene
135-98-8
None
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Styrene
100-42-5
2000°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
tert-Butylbenzene
98-06-6
100
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
T etrachloroethene
127-18-4
690°
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Toluene
108-88-3
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
trans- 1,2-Dichloroethene
156-60-5
1000
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
trans-1,3-Dichloropropene
10061-02-6
100
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Trichloroethene
79-01-6
0.47
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Vinyl Chloride
75-01-4
5
ug/L
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
< 0.5 U
-
EPA 8260B
Xylenes, Total
1330-20-7
2
ug/L
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
< 1.5 U
-
EPA 8270D
2,2'-oxybis( 1 -Chloropropane)
108-60-1
10000
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2,4,6-Trichlorophenol
88-06-2
710°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2,4-Dichlorophenol
120-83-2
4.1 c
ug/L
< 1.1 U
< 1 u
< 0.99 U
< 1.0 u
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 u
< 1 U
< 1 u
EPA 8270D
2,4-Dimethylphenol
105-67-9
46°
ug/L
< 1.1 U
< 1 u
< 0.99 U
< 1.0 u
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 u
< 1 U
< 1 u
EPA 8270D
2,4-Dinitrophenol
51-28-5
360°
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
2,4-Dinitrotoluene
121-14-2
39°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2,6-Dinitrotoluene
606-20-2
24 c's
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Chloronaphthalene
91-58-7
4.9 c's
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Chlorophenol
95-57-8
750°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Methylnaphthalene
91-57-6
9111
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Methylphenol
95-48-7
36°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
2-Nitroaniline
88-74-4
930°
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
2-Nitrophenol
88-75-5
190°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
3 & 4-Methylphenol
MEPH3MEPH4
None
ug/L
<2.1 U
<2.1 U
< 2.0 U
< 2.0 U
< 2.0 U
< 2.0 U
< 2 U
< 1.9 U
< 2.2 U
<2.1 U
< 2 U
<2.1 U
EPA 8270D
3,3 -Dichlorobenzidine
91-94-1
930°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
3-Nitroaniline
99-09-2
13 C>!1
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
4,6-Dinitro-2-methylphenol
534-52-1
None
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
4-Bromophenyl Phenyl Ether
101-55-3
1.5"
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chloro-3-methylphenol
59-50-7
None
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chloroaniline
106-47-8
1400"
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Chlorophenyl Phenyl Ether
7005-72-3
37 c'a
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
4-Nitroaniline
100-01-6
None
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
4-Nitrophenol
100-02-7
3.8 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Acenaphthene
83-32-9
None
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
Page 16 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-119)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-119
TA-119
TA-119
TA-119
TA-119
TA-119
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
Val Qual
EPA 8270D
Acenaphthylene
208-96-8
530°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Aniline
62-53-3
None
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
Anthracene
120-12-7
13 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)anthracene
56-55-3
1800°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzo(a)pyrene
50-32-8
1.2 c,a
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Benzoic Acid
65-85-0
0.2
ug/L
< 26.3 U
< 25.8 U
< 24.8 U
< 25.0 U
< 25.3 U
< 24.8 U
< 24.5 U
< 24.3 U
< 16.1 U
< 16 U
< 15.2 U
< 15.5 U
EPA 8270D
bis(2-Chloroethyl)ether
111-44-4
75000 11
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
bis(2-Ethylhexyl)phthalate
117-81-7
0.014 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Butylbenzylphthalate
85-68-7
6
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Chrysene
218-01-9
16 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dibenzo(a,h)anthracene
53-70-3
3.4 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dibenzofuran
132-64-9
0.34 C>!1
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Diethylphthalate
84-66-2
7.9°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 U
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Dimethylphthalate
131-11-3
15000°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 U
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Di-n-butylphthalate
84-74-2
None
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Di-n-octylphthalate
117-84-0
900°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Fluoranthene
206-44-0
200°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Fluorene
86-73-7
800°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Hexachlorobenzene
118-74-1
290°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Hexachlorobutadiene
87-68-3
1
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Hexachlorocyclopentadiene
77-47-4
50
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Hexachloroethane
67-72-1
6.2 c's
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Indeno( 1,2,3-cd)pyrene
193-39-5
3.4 c's
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Isophorone
78-59-1
78 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
Nitrobenzene
98-95-3
13 C>!1
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
EPA 8270D
N-N itrosodi-n-propylamine
621-64-7
1.1 c,a
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
N-N itrosodiphenylamine
86-30-6
12 c
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 u
< 1 u
EPA 8270D
Pentachlorophenol
87-86-5
1
ug/L
< 2.6 U
< 2.6 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.5 U
< 2.4 U
< 2.7 U
< 2.7 U
< 2.5 U
< 2.6 U
EPA 8270D
Phenanthrene
85-01-8
None
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Phenol
108-95-2
5800°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 U
< 1.1 U
< 1 U
< 1 U
EPA 8270D
Pyrene
129-00-0
120°
ug/L
< 1.1 U
< 1 U
< 0.99 U
< 1.0 u
< 1.0 u
< 0.99 U
< 0.98 U
< 0.97 U
< 1.1 u
< 1.1 u
< 1 U
< 1 U
SW846 8290
1,2,3,4,6,7,8-HpCDD
35822-46-9
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,6,7,8-HpCDF
67562-39-4
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8,9-HpCDF
55673-89-7
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8-HxCDD
39227-28-6
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,4,7,8-HxCDF
70648-26-9
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,6,7,8-HxCDD
57653-85-7
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,6,7,8-HxCDF
57117-44-9
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8,9-HxCDD
19408-74-3
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8,9-HxCDF
72918-21-9
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8-PeCDD
40321-76-4
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
1,2,3,7,8-PeCDF
57117-41-6
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,4,6,7,8-HxCDF
60851-34-5
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,4,7,8-PeCDF
57117-31-4
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
2,3,7,8-TCDF
51207-31-9
None
Pg/L
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
Page 17 of 18
-------
Table 3
Trench Area Groundwater Data Summary (TA-119)
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Well ID
TA-119
TA-119
TA-119
TA-119
TA-119
TA-119
Quarter / Year
1Q 2018
2Q 2018
3Q 2018
4Q 2018
1Q 2019
2Q 2019
Sample Type
N
FD
N
FD
N
FD
N
FD
N
FD
N
FD
Method
Chemical
CAS#
Project
Quantitation
Limit Goal*
Units
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
ValQual
Result
Val Qual
Result
ValQual
Result
Val Qual
Result
Val Qual
SW846 8290
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
30
Pg/L
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
SW846 8290
OCDD
3268-87-9
None
Pg/L
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
SW846 8290
OCDF
39001-02-0
None
Pg/L
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
< 100 u
-
SW846 8290
Total HpCDD
37871-00-4
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total HpCDF
38998-75-3
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total HxCDD
34465-46-8
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total HxCDF
55684-94-1
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total PeCDD
36088-22-9
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total PeCDF
30402-15-4
None
Pg/L
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
< 50 U
-
SW846 8290
Total TCDD
41903-57-5
None
Pg/L
< 10U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
SW846 8290
Total TCDF
55722-27-5
None
Pg/L
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
< 10 U
-
Notes:
* Project Quantitation Limit Goals are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10'4
— No analysis performed.
U The analyte was analyzed for, but was not detected above the level of the reported sample
quantitation limit.
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J+ The result is an estimated quantity, but the result may be biased high.
J- The result is an estimated quantity, but the result may be biased low.
UJ The analyte was analyzed for, but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
Abbreviations:
< = less than
CAS = chemical abstracts service
FD = field duplicate
ID = identification
MCL = maximum contaminant level
MDNR = Missouri Department of Natural Resources
pg/L = picograms per liter (parts per quadrillion)
RSL = regional screening level
ug/L = micrograms per liter (parts per billion)
USEPA = United States Environmental Protection Agency
Page 18 of 18
-------
Table 4
Analytes Detected at the Site
January 2018 - May 2019
Syntex Facility Superfund Site - Verona, MO
Chemical
CAS#
PQLG*
1,3-Dichlorobenzene
541-73-1
None
1,4-Dichlorobenzene
106-46-7
75
1,4-Dioxane
123-91-1
0.46c
2,6-Dinltrotoluene
606-20-2
4.9c'"
Acetone
67-64-1
14000 "
bis(2-Ethylhexyl)phthalate
117-81-7
6
Chlorobenzene
108-90-7
100
Chloroethane
75-00-3
21000 "
Chloromethane
74-87-3
190"
OCDD
3268-87-9
None
Phenol
108-95-2
5800"
T richloroethene
79-01-6
5
Units
ug
/L
ug
/L
ug
/L
ug
/L
ug
/L
ug
/L
ug
/L
ug
/L
ug
/L
PS
/L
ug
/L
ug
/L
Well ID
Quarter /
Year
Result
ValQual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
Val Qual
Result
ValQual
Result
ValQual
Result
ValQual
Result
ValQual
Result
ValQual
Result
ValQual
TA-111
4Q2018
0.73
1Q 2019
12
TA-117
1Q 2018
0.177
2.15
38.5
J
1.91
1Q 2018
14.8
1Q 2018
0.173
2.17
61.5
J
1.8
1Q 2018
15.5
2.1
1.6
1Q 2018
16.2
2Q 2018
1.1
18.9
J+
34.9
1.8
2Q 2018
0.97
18.8
40.7
2
3Q 2018
0.89
15.8
10.1
2.9
3Q 2018
0.8
18.6
10.9
2
3Q 2018
1.6
4Q2018
1.7
12.3
19
9.6
0.59
4Q2018
1.7
12.5
15.3
9.3
0.62
4Q2018
1.5
1Q 2019
1.1
14.2
50
1.9
1Q 2019
1.1
15.5
55.5
2
2Q 2019
0.88
12.4
J-
50.4
J
1.9
1.2
2Q 2019
1.1
12.9
J-
35
J
1.9
1.1
2Q 2019
1.3
1.6
TA-118
1Q 2018
0.25
2Q 2018
0.25
2Q 2018
140
3Q 2018
0.41
4Q2018
0.49
1Q 2019
0.74
2Q 2019
0.21
TA-119
1Q 2018
0.72
2Q 2018
0.85
3Q 2018
0.50
4Q2018
0.33
1Q 2019
0.36
2Q 2019
0.25
Notes:
* Project Quantitation Limit Goals (PQLG) are analytical goals listed solely for the purpose of evaluating laboratory
analytical methods and achievable laboratory limits; these are not project-specific screening levels and are
not approved by USEPA or MDNR as the appropriate risk assessment values for this project. The risk
assessment values will be developed in subsequent phases of the project.
Bold values exceed PQLG
+ MCL or RSL not established
c USEPA Tapwater Regional Screening Level (cancer)
n USEPA Tapwater Regional Screening Level (noncancer)
a Regional Screening Level adjusted to 10'4
J The result is an estimated quantity. The associated numerical value is the approximate concentration
of the analyte in the sample.
J+ The result is an estimated quantity, but the result may be biased high.
J- The result is an estimated quantity, but the result may be biased low.
Abbreviations:
CAS = chemical abstracts service
FD = field duplicate
ID = identification
MCL = maximum contaminant level
MDNR = Missouri Department of Natural Resources
OCDD = Octachlorodibenzo-p-dioxin
pg/L = picograms per liter (parts per quadrillion)
RSL = regional screening level
ug/L = micrograms per liter (parts per billion)
USEPA = United States Environmental Protection Agency
Page 1 of 1
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-5
DU-6
DU-7
DU-8
Sample ID
Date
Sample Type
SED-5-18072017
7/17/2017
N
SED-6-19072017
7/19/2017
N
SED-7-19072017
7/19/2017
N
SED-8-20072017
7/19/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
8.9
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
34
<5
<5
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
<5
65
6.6
9.7
Total HpCDD
37871-00-4
ng/Kg
<5
110
15
23
OCDF
39001-02-0
ng/Kg
< 10
45
< 10
< 10
OCDD
3268-87-9
ng/Kg
< 10
1200
200
340
Notes:
I - Interference present. OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
J - Analytical result is an estimated value. commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 1 of 6
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-9
DU-10
DU-10
DU-11
Sample ID
Date
Sample Type
SEI
)-9-21072017
7/21/2017
N
SED-10-24072017
7/24/2017
N
SED-DUP10-24072017
7/24/2017
FD
SED-11-25072017
7/25/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
8.6
12
13
17
Total HpCDD
37871-00-4
ng/Kg
19
27
29
44
OCDF
39001-02-0
ng/Kg
< 10
< 10
< 10
< 10
OCDD
3268-87-9
ng/Kg
260
330
310
510
Notes:
I - Interference present OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
J - Analytical result is an estimated value commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 2 of 6
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-12
DU-13
DU-14
DU-15
Sample ID
Date
Sample Type
SED-12-25072017
7/25/2017
N
SED-13-25072017
7/25/2017
N
SED-14-25072017
7/25/2017
N
SED-15-27072017
7/27/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
8.2
12
14
12
Total HpCDD
37871-00-4
ng/Kg
20
34
38
44
OCDF
39001-02-0
ng/Kg
< 10
< 10
< 10
< 10
OCDD
3268-87-9
ng/Kg
230
410
J
530
300
Notcsi
T T ' j, OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
1 - Interference present. ^
T A i i i. • . ¦ .j i commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
J - Analytical result is an estimated value / ... \ t> > r & j jj r & v &»
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 3 of 6
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-16
DU-17
DU-18
DU-19
Sample ID
Date
Sample Type
SED
-16-27072017
7/27/2017
N
SED-17-28072017
7/28/2017
N
SED-18-28072017
7/28/2017
N
SED-19-31072017
7/31/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
<5
<5
5.6
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
8.6
12
5.8
I
9.4
Total HpCDD
37871-00-4
ng/Kg
8.6
32
21
21
OCDF
39001-02-0
ng/Kg
< 10
< 10
< 10
< 10
OCDD
3268-87-9
ng/Kg
210
410
200
290
Notes:
I - Interference present. OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
J - Analytical result is an estimated value commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 4 of 6
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-20
DU-20
DU-21
DU-22
Sample ID
Date
Sample Type
SED-20-31072017
7/31/2017
N
SED-DUP20-31072017
7/31/2017
FD
SED-21-01082017
8/1/2017
N
SED-22-01082017
8/1/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
Result
Lab
Qual
Val
Qual
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
12
9.9
6.8
6.2
Total HpCDD
37871-00-4
ng/Kg
31
26
17
19
OCDF
39001-02-0
ng/Kg
< 10
< 10
< 10
< 10
OCDD
3268-87-9
ng/Kg
480
J
340
J
240
210
Notes:
I - Interference present. OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
J - Analytical result is an estimated value commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 5 of 6
-------
Table 5
TABULATED DATA FROM SPRING RIVER SEDIMENT SAMPLING (FOTH 2017)
Syntex Facility Superfund Site, Verona, Missouri
Decision Unit
DU-23
Background-1
Background-1
Background-2
Sample ID
Date
Sample Type
SED-23-01082017
8/1/2017
N
SED-BG1-02082017
8/2/2017
N
SED-DUPBG1-02082017
8/2/2017
FD
SED-BG2-09082017
8/9/2017
N
Chemical
CAS#
Units
Result
Lab
Qual
Val
Qual
Result
Result
Result
2,3,7,8-TCDF
51207-31-9
ng/Kg
< 1
< 1
< 1
< 1
Total TCDF
55722-27-5
ng/Kg
< 1
< 1
< 1
< 1
2,3,7,8-Tetrachlorodibenzo-p-Dioxin
1746-01-6
ng/Kg
< 1
< 1
< 1
< 1
Total TCDD
41903-57-5
ng/Kg
< 1
< 1
< 1
< 1
1,2,3,7,8-PeCDF
57117-41-6
ng/Kg
<5
<5
<5
<5
2,3,4,7,8-PeCDF
57117-31-4
ng/Kg
<5
<5
<5
<5
Total PeCDF
30402-15-4
ng/Kg
<5
<5
<5
<5
1,2,3,7,8-PeCDD
40321-76-4
ng/Kg
<5
<5
<5
<5
Total PeCDD
36088-22-9
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDF
70648-26-9
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDF
57117-44-9
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDF
72918-21-9
ng/Kg
<5
<5
<5
<5
2,3,4,6,7,8-HxCDF
60851-34-5
ng/Kg
<5
<5
<5
<5
Total HxCDF
55684-94-1
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8-HxCDD
39227-28-6
ng/Kg
<5
<5
<5
<5
1,2,3,6,7,8-HxCDD
57653-85-7
ng/Kg
<5
<5
<5
<5
1,2,3,7,8,9-HxCDD
19408-74-3
ng/Kg
<5
<5
<5
<5
Total HxCDD
34465-46-8
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDF
67562-39-4
ng/Kg
<5
<5
<5
<5
1,2,3,4,7,8,9-HpCDF
55673-89-7
ng/Kg
<5
<5
<5
<5
Total HpCDF
38998-75-3
ng/Kg
<5
<5
<5
<5
1,2,3,4,6,7,8-HpCDD
35822-46-9
ng/Kg
<5
9.6
8.2
16
Total HpCDD
37871-00-4
ng/Kg
11
33
25
30
OCDF
39001-02-0
ng/Kg
< 10
< 10
< 10
< 10
OCDD
3268-87-9
ng/Kg
190
250
270
270
Notcsi
T T ' r OCDD and HpCDD were detected in sediment samples from the two background DUs and most Study Area DUs at similar concentrations. These congeners are
1 - Interference present. ^
T i • i 1+ . .. -i commonly found in the environment due to natural (e.g., incomplete combustion of organic material by forest fires or volcanic activity) and anthropogenic (e.g.,
J - Analytical result is an estimated value / ... v & > r & j r & \
combustion of diesel fuel) activities (ATSDR, 1998; EPA 2006). Compared to the dioxin congeners 1,2,3,4,6,7,8-HpCDD and OCDD, 2,3,7,8 TCDD (the dioxin
congener commonly referred to simply as dioxin or TCDD), is approximately 100 and 3,000 times more toxic, respectively (EPA, 2010).
Page 6 of 6
-------
APPENDIX C
LIST OF REFERENCES
-------
LIST OF REFERENCES
Environmental Works, Inc. (EW). 2019. Letter re. Closure of "Empire Well #3," per Environmental
Covenant aka Aurora-Verona Well #3/Empire District Electric Well (WL11948, Log 9152).
September 17.
EW. 2021. 2019 and 2020 Annual Compliance Reports, Environmental Covenant dated December 28,
2018, BCP Ingredients Facility, Verona, Missouri. September 3, 2021.
EW. 2021. Report of 2021 Flood Response, BCP Ingredients Facility, Verona, MO. December 14.
Environmental Works. 2022. 2021 Annual Compliance Report, Environmental Covenant dated
December 28, 2018, BCP Ingredients Facility, Verona, Missouri. January 27.
Foth Infrastructure and Environment, LLC (Foth). 2016a. Pathways Analysis Report Plan for
Protectiveness Evaluation, Syntex Facility Superfund Site. Verona, Missouri. Prepared for
Syntex Agribusiness, Inc. July 8.
Foth. 2016b. East Area Groundwater Sampling and Analysis Plan, Syntex Facility Superfund Site.
Verona, Missouri. Prepared for Syntex Agribusiness, Inc. July 8.
Foth. 2017a. Fourth Quarter 2016 Groundwater Monitoring Report. February 17.
Foth. 2017b. West Area Roadway Discrete Soil Sampling and Analysis Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. March 7.
Foth. 2017c. Letter transmitting the Progress Report for Period 3/01/2017 to 03/31/2017. April 10.
Foth. 2017d. Paving Project Plan for the BCP Ingredients, Inc. Plan, Verona, Missouri. Prepared for
Syntex Agribusiness, Inc. November 22.
Foth. 2017e. Spring River Sediment Sampling Report. Syntex Facility Superfund Site. Verona,
Missouri. Prepared for Syntex Agribusiness, Inc. December.
Foth. 2017f. Spring River Screening-Level Ecological Risk Assessment. Syntex Facility Superfund Site.
Verona, Missouri. Prepared for Syntex Agribusiness, Inc. December 15.
Foth. 2018a. East Area Groundwater Monitoring Summary Report. Syntex Facility Superfund Site.
Verona, Missouri. Prepared for Syntex Agribusiness, Inc. May.
Foth. 2018b. Email from Bob Kick to Steve Kemp (EPA) re. Syntex / BCP Ingredients, Inc. Plant
Paving Project Plan Completion. November 1.
Foth. 2019a. Trench Area Roadways Shallow Soil Sampling, Analysis, and Human Health Risk
Evaluation Report. Syntex Facility Superfund Site. Verona, Missouri. Prepared for Syntex
Agribusiness, Inc. August.
Foth. 2019b. Revised Trench Area Groundwater Monitoring Summary Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. November 13.
-------
Foth. 2020a. East Area Fourth Quarter 2019 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. March 2.
Foth. 2020b. East Area First Quarter 2020 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. June 1.
Foth. 2020c. Revised East Area Shallow Soil Sampling, Analysis, and Protectiveness Evaluation Report.
Syntex Facility Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. July
15.
Foth. 2020d. East Area Second Quarter 2020 Groundwater Monitoring Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. August 31.
Foth. 2020e. East Area Direct-Push Technology Groundwater and Soil Sampling Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. October.
Foth. 2020f. East Area Third Quarter 2020 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. November 30.
Foth. 2020g. Revised East Area Well Installation Interim Report. Syntex Facility Superfund Site.
Verona, Missouri. Prepared for Syntex Agribusiness, Inc. December 10.
Foth. 2021a. East Area Fourth Quarter 2020 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. March 1.
Foth. 2021b. East Area First Quarter 2021 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. June 1.
Foth. 2021c. Email (with attachment) to Brian Zurbuchen (EPA) from Bob Kick RE: Syntex Facility site
- cover maintenance, fencing, signage. July 26.
Foth. 2021d. Memorandum from Bob Kick to Brian Zurbuchen (EPA) and Chinwe Ndubuka (MoDNR)
re. Status of site following May 2021 Flood Events. July 29.
Foth. 2021e. Trench Area Well Installation and Geotechnical Investigation Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. July 30.
Foth. 2021f. East Area Second Quarter 2021 Groundwater Monitoring Report. Syntex Facility
Superfund Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. August 30.
Foth. 202 lg. East Area Third Quarter 2021 Groundwater Monitoring Report. Syntex Facility Superfund
Site. Verona, Missouri. Prepared for Syntex Agribusiness, Inc. November 29.
Foth. 2021h. Revised Trench Area Roadways Shallow Soil Sampling, Analysis, and Human Health Risk
Evaluation Report. Syntex Facility Superfund Site. Verona, Missouri. Prepared for Syntex
Agribusiness, Inc. December 15.
Foth. 2022. Letter re. Five Year Review Site Inspection, Response to Comments - Syntex Facility
Superfund Site, Verona, Missouri. July 29.
-------
Lawrence County Recorder. 2019. Environmental Covenant, dated December 28, 2018. File #2019-
00000018. 28 p. Filed January 9.
Lawrence County Recorder. 2022a. Environmental Covenant, dated March 31, 2022. Instrument#
2022002116. 16 p. Filed April 13.
Lawrence County Recorder. 2022a. Environmental Covenant, dated March 31, 2022. Instrument#
2022002115. 18 p. Filed April 13.
Metcalf & Eddy, Inc. 1992. Final Baseline Risk Assessment for Syntex Agribusiness, Inc., Verona,
Missouri. August 4.
Missouri Department of Natural Resources (MoDNR). 2018a. Annual Registry Site Inspection Report.
Syntex-Verona (East). April 10.
MoDNR. 2017. Missouri Registry of Confirmed Abandoned or Uncontrolled Hazardous Waste Disposal
Sites. On-line address: https://dnr.mo.gov/env/hwp/sfund/registry.htm Accessed June 20, 2017.
MoDNR. 2018a. Annual Registry Site Inspection Report. Syntex-Verona (West). April 10.
MoDNR. 2018b. Annual Registry Site Inspection Report. Syntex-Verona (East). April 10.
MoDNR. 2019a. Email from Kyle Anderson to Bob Kick (Foth), 2019 Annual Registry Site Inspection
Reports Site (2019 Annual Registry Site Inspection Reports for East Area and West Area
attached). April 26.
MoDNR. 2020. Missouri Registry Annual Report. Registry of Confirmed Abandoned or Uncontrolled
Hazardous Waste Disposal Sites in Missouri. Fiscal Year 2020.
MoDNR. 2021a. Email from Chinwe Ndubuka to Brian Zurbuchen (EPA) re. Missouri Registry Report
- Syntex Verona Superfund Site (2020 Annual Registry Site Inspection Reports for East Area
and West Area attached). July 30.
MoDNR. 2021b. Email from Emily Clancy to Brian Zurbuchen (EPA) and Chinwe Ndubuka (MoDNR)
RE: Missouri Registry Report - Syntex Verona Superfund Site (2021 Annual Registry Site
Inspection Reports for East Area and West Area attached). July 30. Doc ID #07-40578307.
MoDNR. 2021c. Missouri Registry Annual Report. Registry of Confirmed Abandoned or Uncontrolled
Hazardous Waste Disposal Sites in Missouri. Fiscal Year 2021.
Radian Corporation. 1995. OU 2 Implementation Plan for Syntex Agribusiness, Inc., Verona, Missouri
Facility, prepared for Syntex Agribusiness, Inc. May.
Schuette, Daniel R. 2002. Daniel R. Schuette (Interim Director, Air and Land Protection Division,
MoDNR) to Pam Robertson (Recorder of Deeds, Lawrence County Courthouse). Letter. May 6.
S.M. Stoller Corporation. 2000. Draft Risk Assessment Report, Operable Unit 2 (OU 2) at the former
Syntex Agribusiness, Inc. Facility Superfund Site, Verona, Missouri. February 14.
-------
Syntex Agribusiness, Inc (Syntex). 1988a. Verification Sampling and Excavation Plan, Syntex
Agribusiness, Inc., Verona Facility. May 2.
Syntex. 1988b. Letter from Robert L. Williams to David Wagoner (EPA) enclosing the Implementation
Plan for the Syntex Agribusiness, Inc. Verona plant site, Volumes I and II. July 29.
Syntex. 1989. Letter from J. Kevin Cassil to David Wagoner (EPA) enclosing the Addendum to the
Implementation Plan for the Syntex Agribusiness, Inc. Verona plant site. May 25.
Syntex, 1997. Closure Plan, T1 Containment Dike, Syntex-Verona, Missouri Remediation. April 10.
Toxicological and Environmental Associates, Inc. (TEA). 2016. Pathways Analysis Report for
Protectiveness Evaluation. Syntex Facility Superfund Site, Verona, Missouri. Prepared for
Syntex Agribusiness, Inc. SYN-16.08. June 21.
TEA. 2017. Spring River Screening Level Ecological Risk Assessment. Syntex Facility Superfund Site.
Verona, Missouri. Prepared for Syntex Agribusiness, Inc. December.
U.S. Census Bureau. 2022. 2020 Decennial Census, Verona, Missouri Profile.
https://data.census.gov/cedsci/all?q=verona.%20missouri. Accessed May 12.
U.S. Environmental Protection Agency (EPA). 1983 Consent Agreement and Order between Syntex
Agribusiness, Inc. and EPA. September 6.
EPA. 1988a. Record of Decision for Final Management of Dioxin Contaminated Soil and Equipment at
Syntex Agribusiness, Inc., Verona, Missouri. May 5.
EPA. 1988b. Letter from David A. Wagoner (Director, Waste Management Division, EPA) to Gary J.
Pendergrass (Administrator, Environmental Projects, Syntex Agribusiness, Inc.) regarding
proposed flood control berm. December 13.
EPA. 1995a. Letter from Steven L. Sanders to Nancy Luxton regarding Closure of the Spill Area.
October 6.
EPA. 1995b. Memorandum from Steven L. Sanders to File regarding Modification in Cap for Spill
Area. October 10.
EPA. 1997. Administrative Order on Consent for Response Actions, CERCLA Docket No. VII-97-F-
0016. July.
EPA. 1998a. Superfund Site Preliminary Closeout Report, Syntex Facility - Verona Site, Verona,
Missouri. September 25.
EPA. 1998b. Remedial Action Report, Syntex Facility Remedial Action, Operable Unit 1, Verona,
Missouri. September.
EPA. 2010. Recommended Toxicity Equivalence Factors (TEFs) or Human Health Risk Assessments of
2,3,7,8-Tetrachlorodibenzo-p-dioxin and Dioxin-Like Compounds. EPA/100/R-10/005.
December.
-------
EPA. 2012. Fourth Five-Year Review Report for Syntex Facility Superfund Site, Lawrence County,
Missouri. September 28.
EPA. 2014. Memorandum from Steve Kemp to Cecilia Tapia: Corrections to the Fourth Five-Year
Review Report for the Syntex Facility Superfund Site dated September 28, 2012. April 24.
EPA. 2016. Administrative Settlement Agreement and Order on Consent for Investigation (Docket No.
CERCLA-07-2016-0008). September.
EPA. 2017. Fifth Five-Year Review Report for Syntex Facility Superfund Site, Lawrence County,
Missouri. September 28.
EPA. 2021. Trip Report. Syntex Facility Site. November 12.
Young, Sami. 2022. Phone conversation with Brian Zurbuchen. August 8.
-------
APPENDIX D
SITE INSPECTION CHECKLIST
-------
R7 FYR Inspection Form
Please fill out relevant information. If a section doesn't apply, you may select "N/A" and click the arrow next to
the section header to minimize the information.
Site Information
Site Name
Date of Inspection
Location
Region
EPA ID
Agency, Office, or
Company Leading Five-
Year Review
Weather/Temperature
Remedy includes:
Attachments
Syntex Facility Superfund Site
10/5/2021
City: Verona, MO
County: Lawrence
State: MO
Region 7
MOD007452154
EPA Region 7
Warm, clear, light breeze
IS!Landfill cover/containment
SAccess controls
^Institutional controls
~Groundwater pump and treatment
mother: Groundwater monitoring
[^Inspection team roster attached
KSite map attached
~ Photo log attached
~ Monitored national attenuation
~Groundwater containment
~Vertical barrier walls
~Surface water collection and
treatment
Interviews (DApplicable HUN/A)
Fill out all that apply.
O&M Site Manager
Name: Problems and Suggestions:
Title:
Date:
Interviewed:
;
~At site
1
~At office
;
~ By phone
Phone Number:
i ~Report attached
O&M Staff
i Name:
Problems and Suggestions:
i Title:
i Date:
i Interviewed:
;
i DAt site
:
-------
~At office
~ By phone Phone Number:
~ Report attached
Local Regulatory Authorities and Response Agencies
For example, state and tribal offices, emergency response office, police department, office of public
health or environmental health, zoning office, recorder of deeds, or other city and county officials.
Agency:
Problems and Suggestions:
Name:
Title:
Date:
Phone Number:
~ Report attached
Agency:
Problems and Suggestions:
Name:
Title:
Date:
Phone Number:
~ Report attached
Agency:
Problems and Suggestions:
Name:
Title:
Date:
Phone Number:
~ Report attached
Agency:
Problems and Suggestions:
Name:
Title:
Date:
Phone Number:
~ Report attached
Other Interviews (optional)
i DReport attached
On-Site Documents and Records Verified (^Applicable ON/A)
O&M Documents
~O&M manual DReadily available DUptodate SN/A
~As-built drawings DReadily available DUptodate SN/A
~ Maintenance logs DReadily available DUptodate SN/A
-------
Remarks:
Site-Specific Health and Safety Plan
~Site-Specific Health and Safety Plan EReadily available EUptodate EN/A
~Contingency Plan/Emergency EReadily available EUptodate EN/A
Response Plan
Remarks:
O&M and OSHA Training Records
~O&M and OSHA training records EReadily available DUptodate DN/A
Remarks:
Permits and Service Agreements
~Air discharge permit
~ Effluent discharge
~Waste disposal, POTW
~Other permits
~ Readily available
~ Readily available
~ Readily available
~ Readily available
~ Up to date
~ Up to date
~ Up to date
~ Up to date
en/a
en/A
en/A
EN/A
Remarks:
Gas Generation Records
~Gas generation records DReadily available DUptodate EN/A
Remarks:
Settlement Monument Records
~Settlement monument records DReadily available DUptodate EN/A
Remarks:
-------
Groundwater Monitoring Records
~Groundwater monitoring records SReadily available DUptodate DIM/A
Remarks:
Leachate Extraction Records
~ Leachate extraction records DReadily available DUptodate SN/A
Remarks:
Discharge Compliance Records
~Air DReadily available DUptodate SN/A
DWater (effluent) DReadily available DUptodate SN/A
Remarks:
Daily Access/Security Logs
DDaily access/security logs DReadily available DUptodate SN/A
Remarks:
O&M Costs (DApplicable
O&M Organization
DState in-house
DPRP in-house
DFederal facility in-house
KOther: Routine O&M incorporated into site
IHN/A)
DContractor for state
DContractor for PRP
DContractor for federal facility
laracterization activities pursuant to 2016 AOC
O&M Cost Records
DReadily available
DUp to date
Original O&M cost estimate:
Total annual cost by year for review period, if available:
DFunding
mechanism/agreement in place
DBreakdown attached
From
Total cost:
to
-------
~ Breakdown attached
From
Total cost:
~ Breakdown attached
to
From
Total cost:
~ Breakdown attached
to
From
Total cost:
~ Breakdown attached
to
From
to
Total cost:
~ Breakdown attached
Unanticipated or Unusually High O&M Costs During Review Period
Describe costs and reasons:
Access and Institutional Controls (^Applicable ON/A)
A. Fencing
Fencing damaged M Location shown on DGates secured DN/A
site map
Remarks: The fence at the northern boundary of the East Area/Slough Area
was draped with flood debis from a May 2021 flood event and overgrown
with vegetation (Photographs 80 and 81). The fence on southern boundary
of Lagoon Area, behind building V-20 was overgrown with vegetation that
was pushing the fence out of alignment (Photographs 39, 40, and 56).in poor
condition.
B. Other Access Restrictions
Signs and other security ~ Location shown on site map
measures n , c. . , ....
Remarks: Signs in good condition on property fencing and gates and on
fences around individual units.
~ N/A
C. Institutional Controls (ICs)
Implementation and Site conditions imply ICs not properly
enforcement implemented
~ Yes [XlNo DIM/A
-------
Site conditions imply ICs not being fully enforced DYes IXlNo DN/A
Type of monitoring (e.g., self-reporting, drive-by): self-reporting
Frequency: annual
Responsible party/agency: BCP Ingredients
Contact: Shawn Thomas Contact: Matthew Shaps, Esq.
Title: Global EHSS Director Title: Syntex Agribusiness, Inc.
Date: Date:
Phone number: 845-637-6042 Phone number:
Reporting is up to date
= KlYes
~ No
~ N/A
Reports are verified by the lead agency
. KlYes
~ No
~ n/a
Specific requirements in deed or decision
KlYes
~ No
~ n/a
documents have been met
Violations have been reported
~ Yes
~ No
IX] N/A
Other problems or suggestions:
~ Report attached
Adequacy IS]ICs are adequate DlCs are inadequate DIM/A
Remarks:
D. General
i
Vandalism/trespassing
~ Location shown on site map
~ No vandalism
Remarks:
Land use changes on
site
~ N/A
Remarks: None
Land use changes off [x]N/A
site I Remarks:
General Site Conditions (^Applicable ON/A)
A. Roads ^Applicable DIM/A
Roads damaged ~ Location shown on site map
Remarks: Paved road has been laid down from Spring River
[X] Roads adequate
crossing to Trench Area.
~ N/A
-------
B. Other Site Conditions
Remarks: N/A
Landfill Covers (^Applicable ON/A)
.anofill Suiface (DApplicable DN/A)
1. Settlement (low [X] Location shown on site map DSettlement not evident
sPots) Areal extent: Approximately 10 Depth: Approximately 6 inches
square feet
Remarks: Area of settlement in west central portion of the Burn Area.
2. Cracks
3. Erosion
[X]Location shown on site map DCracking not evident
Length: Approximately Widths: Depth: Approximately 4
8 inches Approximately 2 inches
inches
Remarks: Multiple minor asphalt cracks in T-l Dike and Spill Area pavement,
with minor vegetative growth in Spill Area cover cracks. Significant crack in
cover of T-l Dike cover at the northwest corner of Building V-ll
(Photographs 9, 11 and 12).
~ Location shown on site map [X] Erosion not evident
Areal Extent: Depth:
Remarks:
4. Holes [X] Location shown on site map ~ Holes not evident
Areal Extent: Approximately 1 square Depth: unknown
foot.
Remarks: Two animal burrow holes observed in the vegetative cover of the
Trench Area. (Photographs 85 and 87).
5. Vegetative Cover DGrass
~ No signs of stress
KlCover properly established
~Trees/shrubs (indicate size and locations on a diagram)
Remarks:
-------
6. Alternative Cover M Applicable DlM/A
(armored rock, Remarks: Asphalt cover in T-l Dike and Spill Area. Refer to comments in
concrete, etc.) Cracks section 2 above.
7. Bulges ~ Location shown on site map |X| Bulges not evident
Areal extent: Height:
Remarks:
8. Wet Areas and Water
Damage
~ Wet areas/water damage not evident
9. Slope Instability
[X] Wet areas
[X] Ponding
~ Seeps
[X] Location shown on
map site
[X] Location shown on
map site
Areal extent:
Approximately 9,300
square feet
Areal extent:
Approximately 1,300
square feet
Areal extent:
~ Soft subgrade
~ Location shown on
map site
~ Location shown on Areal extent:
map site
Remarks: Approximately 9,300 square foot area in northeastern corner of
the Lagoon Area was wet. Within this area, an approximately 1,300 square
foot area of ponded water was observed. According to facility
representatives, the area had received significant rainfall over the previous
weekend, but vegetation suggests this area is often wet or inundated
(Photographs 52 and 53).
~ Slides ~ Location shown on SNo evidence of slope
site map instability
Areal extent:
Remarks:
Benches (EUApplicable SN/A)
Horizontally constructed mounds of earth placed across a steep landfill side slope to interrupt the slope in order
to slow down the velocity of surface runoff and intercept and convey the runoff to a lined channel.
1. Flows Bypass Bench ~ Location shown on site map DM/A or okay
Remarks:
2. Bench Breached ~ Location shown on site map nN/Aorokay
-------
Remarks:
3. Bench Overtopped ~ Location shown on site map ; DlM/A or okay
: Remarks:
Letdown Channels (DApplicable MH/A)
Channel lined with erosion control mats, riprap, grout bags, or gabions that descend the steep side slope of the
cover and will allow the runoff water collected by the benches to move off of the landfill cover without creating
erosion gullies.
1. Settlement ~ Location shown on site map ~ No evidence of settlement
Areal extent: Depth:
Remarks:
2. Material Degradation ~ Location shown on site map DNo evidence of degradation
Areal extent: Material type:
Remarks:
3. Erosion ~ Location shown on site map ~ No evidence of erosion
Areal extent: Depth:
Remarks:
4. Undercutting ~ Location shown on site map DNo evidence of undercutting
Areal extent: Depth:
Remarks:
5. Obstructions ~ Location shown on site map DNo evidence of undercutting
Type: Areal extent: Size:
-------
Remarks:
!
;
6. Excessive Vegetative
~ Location shown on
~ No evidence of DVegetation in channels :
Growth
site map
excessive growth does not obstruct flow
Type:
Areal extent:
Remarks:
Cover Penetrat
El N/A)
1. Gas Vents
~ Active
~ Properly secured/locked
~ Routinely sampled
~ Evidence of leakage at penetration
Remarks:
~ Passive
~ Functioning
~ Good condition
~ Needs maintenance ~ N/A
2. Gas Monitoring
Probes
~ Properly secured/locked
~ Routinely sampled
~ Evidence of leakage at penetration
~ Functioning
~ Good condition
~ Needs maintenance
~ N/A
Remarks:
3. Monitoring Wells
(within surface area of
landfill)
~ Properly secured/locked
~ Routinely sampled
~ Evidence of leakage at penetration
Remarks:
~ Functioning
~ Good condition
~ Needs maintenance
~ N/A
4. Leachate Extraction
Wells
~ Properly secured/locked
~ Routinely sampled
~ Evidence of leakage at penetration
~ Functioning
~ Good condition
~ Needs maintenance
~ N/A
Remarks:
~ Located I ~ Routinely surveyed i DIM/A
-------
5. Settlement
Monuments
Remarks:
G.is Collection and Treatment (EUApplicable SN/A)
1. Gas Treatment
~ Flaring ~ Thermal destruction
~ Collection for reuse
Facilities
~ Good condition ~ Needs maintenance
Remarks:
2. Gas Collection Wells,
~ Good condition ~ Needs maintenance
Manifolds and Piping
Remarks:
3. Gas Monitoring
~ Good condition ~ Needs maintenance
~ N/A
Facilities (e.g., gas
monitoring of adjacent
Remarks:
homes or buildings)
Cover Drainage Layer (DApplicable SN/A)
1. Outlet Pipes
~ Functioning ~ N/A
Inspected
Remarks:
2. Outlet Rock Inspected
~ Functioning ~ N/A
Remarks:
Detention/Sedimentati
on Ponds (DApplicable MH/A)
1. Siltation
~ Siltation not relevant i DN/A
Areal extent: Depth:
Remarks:
2. Erosion
~ Erosion not relevant i DN/A
;
-------
Areal Extent:
Depth:
Remarks:
3. Outlet Works
~ Functioning ~ N/A
Remarks:
4. Dam
~ Functioning ~ N/A
Remarks:
Retaining Walls (DAppI
1. Deformations
icable KN/A)
~ Location shown on site map
~ Deformation not evident
Horizontal Vertical displacement: Rotational displacement:
displacement:
Remarks:
2. Degredation
~ Location shown on site map
i ~ Degradation not evident
Remarks:
Perimeter Ditches/Off-!
1. Siltation
~ Location shown on map
~ Siltation not relevant
Areal extent:
Depth:
;
Remarks:
2. Excessive Vegetative
Growth
~ Location shown on ~ N/A
site map
~Vegetation does not
; impede flow
Type:
; Areal extent:
-------
Remarks:
3. Erosion
~ Location shown on map
~ Erosion not relevant
i Areal Extent:
I Depth:
i Remarks:
4. Discharge Structure
: ~ Functioning ~ N/A
Remarks:
Vertical Barrier Walls (DAppIicable EN/A)
1. Settlement
~ Location shown on map
~ Settlement not relevant
Areal extent:
Depth:
Remarks:
2. Performance Monitoring
~ Performance not monitored
~ Evidence of breaching
Type of monitoring: i Frequency:
; Head differential:
;
Remarks:
Groundwater/Surface Water Remedies (DAppIicable E3N/A)
Groundwater Extraction Wells, Pumps, and Pipelines (HHApplicable ON/A)
Pumps, Wellhead Plumbing, and Electrical
~Good condition DAN required wells DNeeds maintenance DIM/A
properly operating
-------
Remarks
Extraction System Pipelines, Valves, Valve Boxes, and Other Appurtenances
~Good condition DNeeds maintenance
Remarks
Spare Parts and Equipment
~ Readily available DGood condition DRequires upgrade DNeeds to be provided
Remarks
Surface Water Collection Structures, Pumps, and Pipelines (DApplicable MH/A)
Collection Structures, Pumps, and Electrical
~Good condition
Remarks
~ Needs maintenance
Surface Water Collection System Pipelines, Valves, Valve Boxes, and Other Appurtenances
~Good condition ; DNeeds maintenance
Remarks
-------
Spare Parts and Equipment
~ Readily available DGood condition
Remarks
~ Requires upgrade
~ Needs to be provided
Treatment System (~Applicrb!^ IxlN/A)
1. Treatment Train ~ Metals removed
2. Electrical Enclosures
and Panels (properly
rated and functional)
~ Oil/water separation
~ Air stripping
~ Bioremediation
~ Carbon adsorbers
~ Filters:
~ Additive (e.g., chelation agent, flocculent):
~ Others:
~ Good condition ~ Needs maintenance
~ Sampling ports properly marked and functional
~ Sampling/maintenance log displayed and up to date
~ Equipment properly identified
~ Quantity of groundwater treated annually:
~ Quantity of surface water treated annually:
Remarks:
~ N/A
Remarks:
~ Good Condition
~ Needs Maintenance
3. Tanks, Vaults, Storage ON/A DGood Condition
^esse's ~ Proper secondary containment ~ Needs Maintenance
Remarks:
4. Discharge Structure
and Appurtenances
~ N/A
Remarks:
~ Good Condition
~ Needs Maintenance
5. Treatment Building(s) DN/A
~ Chemicals and equipment
properly stored
~ Good Condition (esp. roof and
doorways)
~ Needs Repair
-------
Remarks:
6. Monitoring Wells
(pump and treatment
remedy)
~ Properly secured/locked
~ Routinely sampled
~ All required wells located
~ Functioning
~ Good condition
~ Needs Maintenance
~ N/A
Remarks:
1. Monitoring Data
2. Monitoring data
suggests:
K Is routinely submitted on time
~ Groundwater plume is
effectively contained
K Is of acceptable quality
~ Contaminant concentrations are
declining
Monitored Nrtural Attenuation (~ \cplicable MH/A)
1. Monitoring Wells ~ Properly secured/locked ~ Functioning
(natural attenuation ~ Routinely sampled ~ Good condition
remedy) ~ ah required wells located ~ Needs Maintenance ~ N/A
i Remarks:
Other Remedies (DAppIicable (x]N/A)
If there are remedies applied at the site which are not covered above, attach an inspection sheet describing the
physical nature and condition of any facility associated with the remedy. An example would be soil vapor
extraction.
Overall Observations
Implementation of the Remedy
Describe issues and observations relating to whether the remedy is effective and functioning as designed. Begin
with a brief statement of what the remedy is to accomplish (i.e., to contain contaminant plume, minimize
infiltration and gas emissions, etc.).
-------
The Remedial Action Report for OU 1 documented the completion of the remedial action in a manner
that was consistent with the 1988 ROD (EPA, 1998b). The remedial action included excavation and
incineration of certain dioxin-contaminated soils, dismantling and cleaning of equipment,
establishment and maintenance of vegetative covers, and installation of a cap and vegetative cover at
the Trench Area, as well as installation of a gravel drainage-interception trench upgradient of the
Trench Area. This inspection finds that the vegetative covers are being maintained. However, there
was a large area within the Lagoon Area where the vegetation appeared to be stressed due to wet
conditions caused by poor drainage; and a smaller area within the large area where ponded water
was observed. There was a small, depressed area within the Burn Area. There were two animal
burrows in the Trench Area.
Adequacy of O&M
Describe issues and observations related to the implementation and scope of O&M procedures. In particular,
discuss their relationship to the current and long-term protectiveness of the remedy.
O&M procedures are intended to maintain the vegetation in various subareas, as well as across the
East Area, to prevent erosion of surface soil. O&M procedures are also intended to ensure proper
drainage from subareas and to maintain the Trench Area cap and vegetative cover. There is currently
no formal O&M Manual or O&M Plan for OU 1. However, O&M is currently being conducted pursuant i
to the 1983 Order. The lack of formal O&M procedurs has been identified as an issue in the Five-Year
Review report. Site records do indicate that O&M has been performed routinely since the last Five-
Year Review. As documented in this Five-Year Review inspection, there are several O&M issues that
will need to be addressed: preparation and submittal of a formal O&M Manual and O&M Plan; repair
cracks in the asphalt cover at the T-l dike and Spill Area; perform fill and grading to address the
depression in the Burn Area and ponding in the Lagoon Area; address animal burrows in the Trench
Area cap.
Early Indicators of Potential Remedy Problems
Describe issues and observations such as unexpected changes in the cost or scope of O&M or a high frequency
of unscheduled repairs that suggest that the protectiveness of the remedy may be compromised in the future.
No early indicators of potential remedy problems were observed.
Opportunities for Optimization
Describe possible opportunities for optimization in monitoring tasks or the operation of the remedy.
-------
There were no opportunities for optimization of monitoring tasks or operation of the remedy that
were identified during the Five Year Review inspection.
-------
APPENDIX E
SITE INSPECTION PHOTOS
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
From the parking lot, view of new fence surrounding the BCP property and the eastern
end of the flood control berm.
View of the T-l Dike area, with Building V-25 in the background. The arrow shows the
southern boundary' marker for the area.
X903020F0015.000
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the shallow crack shown in Photograph 3.
N View of the T-l Dike area, with a shallow crack visible in the asphalt. The arrow shows
the southern boundary marker for the area.
X903020F0015.000
2
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the T-l Dike area, with repairs to the asphalt. The arrow shows the southern
boundary marker for the area.
View of the T-l Dike area, with Building V-25 in the background. The arrow shows the
southern boundary marker for the area.
X903020F0015.000
3
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
NE View of the T-l Dike area, with Building V- l 1 in the background. The arrow shows the
northeastern corner of the boundary marker for the area. The photograph shows a low
spot in the asphalt cover where water from a rain event on October 2 had pooled.
View of the T-l Dike area, with shallow cracks visible in the asphalt.
Photo #
Direction
Description
X903020F0015.000
4
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
View of the T-l Dike area, with shallow cracks visible in the asphalt in the area shown
in Photograph 9.
View of the T-l Dike area, with Building V- l 1 at right. The line painted on the asphalt is
the boundary marker for the area.
X903020F0015.000
5
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of a crack in the asphalt of the T-l Dike area at the northwestern corner of
Building V-l 1 and the white painted line showing the boundary marker for the area. This
crack can also be seen in Photograph 11.
View of the T-l Dike area, with shallow cracks visible in the asphalt and Building V-l 1
in the background.
X903020F0015.000
6
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
7
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
View of signage on the northern boundary of the Irrigation Area.
View of signage and fencing along the western boundary of the Irrigation Area.
X903020F0015.000
8
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
NE View of a storm drain immediately south of the Irrigation Area.
View of signage and fencing along the southern boundary of the Irrigation Area. The
and fence along the eastern boundary is visible in the background.
X903020F0015.000
9
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
10
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the Spill Area.
Photo #
Direction
Description
View of the Spill Area with Building V-25 at right.
X903020F0015.000
11
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the Spill Area. The arrow shows the western boundary marker for the area.
View of the Spill Area. The arrow shows the western boundary marker for the area.
X903020F0015.000
12
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the Spill Area, with shallow cracks visible in the asphalt.
Photo #
Direction
Description
X903020F0015.000
13
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
14
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
View of the Spill Area, with cracks and vegetation growth visible in the asphalt.
View of the Spill Area, with shallow cracks and vegetation growth visible in the asphalt.
X903020F0015.000
15
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the Spill Area, with staining visible in the asphalt. The concrete wall is the
secondary containment cell shown in Photograph 33.
X903020F0015.000
16
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
View of the Spill Area, with shallow cracks visible in the asphalt.
View of an unused secondary containment cell north of the Spill Area. The water is from
as shown in Photograph 32.
X903020F0015.000
17
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the Spill Area, with shallow cracks visible in the asphalt.
View of the Spill Area, with shallow cracks and vegetation growth visible in the asphalt.
Photo #
X903020F0015.000
18
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the Lagoon Area, with the fence and signage along the southern boundary.
X903020F0015.000
19
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the one-wire fence that forms the northern boundary of the Lagoon Area, with
Building V-20 at right.
View of the one-wire fence that forms the northern boundary of the Lagoon Area, with
X903020F0015.000
20
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the Lagoon Area, with the fence and signage along the southern boundary.
View of the Lagoon Area, with the fence and signage along the southern boundary.
X903020F0015.000
21
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of a surface water drainage along the southern edge of the Lagoon Area. Building
V-20 is visible in the background.
View of the Lagoon Area, with the fence and signage along the southern boundary.
Photo #
X903020F0015.000
22
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
23
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the Lagoon Area, with the fence and signage along the eastern boundaiy.
NE View of the Lagoon Area, with the fence and signage along the southern boundary.
X903020F0015.000
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
49
SE
View of the point where the surface drainage leaves the Lagoon Area and flows under
the road.
50
N
View of the surface drainage the runs north-south in the eastern portion of the Lagoon
Area.
X903020F0015.000
25
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of the surface drainage the runs north-south in the eastern portion of the Lagoon
Area.
View of an area of standing water in the eastern portion of the Lagoon Area. The area
received substantial rain on October 2, but the vegetation suggests that the area regularly
holds water.
Photo #
X903020F0015.000
26
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of an area of standing water in the eastern portion of the Lagoon Area. The area
received substantial rain on October 2, but the vegetation suggests that the area regularly
holds water.
View of the new property boundary fence along the northern boundary of the Lagoon
Area.
X903020F0015.000
27
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
55
SW
View of the Lagoon Area.
X903020F0015.000
28
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
NE View of the Lagoon Area, with the AST at left.
View of the load out area of the large aboveground storage tank (AST) just west of the
Lagoon Area.
X903020F0015.000
29
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the AST west of the Lagoon Area.
X903020F0015.000
30
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the AST west of the Lagoon Area.
X903020F0015.000
31
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
View of a drain and hose in the loadout area for the AST, also visible in Photograph 57.
Photo #
View of the new property boundary fence along with western boundary of the BCP
property
X903020F0015.000
32
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
View of the flood control berm and the southern BCP property boundary fence from the
View of the Burn Area, with the fence and signage along its northern boundary.
X903020F0015.000
33
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
34
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
as SisHffi&gglK? tm
¦HHHHnSHni
»<*<'
69
NE View of the low spot in the vegetative cover of the Burn Area shown in Photograph 68.
70
View of a low spot in the vegetative cover of the Burn Area.
X903020F0015.000
35
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
36
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
£ - - «- nt, ¦ _*'• v .i', . 4kf; r.j-
73
NE View of the pond at the southern end of the Slough Area.
74
SE
View of the storm water outfall from the BCP property and the pond at the southern end
of the Slough Area.
X903020F0015.000
37
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
75
W
View of the storm water outfall from the BCP property and the pond at the southern end
of the Slough Area.
76
View of surface water drainage in the central portion of the Slough Area.
X903020F0015.000
38
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
A •• C. • '•«'
; i'-'
» v < : "«' 'W --y*- •: ,.x ,, ¦¦
»».' ?.'•
^ ^ ... "
77
N
View of surface water drainage in the central portion of the Slough Area.
78
SE
View of surface water drainage in the central portion of the Slough Area. According to
BCP facility representatives, this is the point where groundwater discharge to the stream
allows for perennial flow.
X903020F0015.000
39
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
¦Ki'J'. " . w. ¦ ¦ yiA%. -SS9-W- -.-re"3
..ill#^'JhJZgM
19
NE View of vegetation along the Slough Area.
80
NE
View of the fence at the northern end of the Slough Area. Debris from a May 2021
flooding event is visible draped on the fence.
X903020F0015.000
40
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
View of the gate at the southeastern boundary of the Trench Area.
View of the fence at the northern end of the Slough Area. Vegetation has grown up to
obscure the fence.
X903020F0015.000
41
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo #
This photograph was taken inadvertently.
N | View of the survey marker (arrow) at the eastern corner of the Trench Area fence.
X903020F0015.000
42
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
'.ir-tsatef'S:
85
View of an animal burrow in the northwestern end of the Trench Area.
86
W
View of the Trench Area fence, with the property boundary fence and the adjacent
property owners hunting blind beyond.
X903020F0015.000
43
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
Photo # Direction Description
87
NE View of an animal burrow adjacent to the southeastern gate of the Trench Area.
View of monitoring well MW-12R. just east of the Trench Area.
X903020F0015.000
44
October 5,2021
-------
Photographic Documentation
Client: U.S. EPA Region 7 Prepared by: Tetra Tech Superfund Technical
Site Name: Syntex Facility Superfund Site, MOD007452154 Assessment and Response Team (START)
Location: Verona, MO Photographer: Heather Wood
X903020F0015.000
45
October 5,2021
-------
APPENDIX F
ENVIRONMENTAL COVENANTS
-------
6^
Doc ID: 002178900028 Type: LAN
Kind: MISCELLANEOUS
Recorded: 01/09/2019 at 08:14:29 AM
Fee Amt: $105.00 Pane 1 of 28
Lawrence County Recorder
Gary Emerson Recorder of Deeds
File# 2019-00000088
BK
455 pg88
Document Title:
Document Date:
Grantor:
Grantee:
Departments:
(ABOVE SPACE RESERVED FOR RECORDER'S USE)
Environmental Covenant
tl , 2014
BCP Ingredients, Inc.
299 Extension Street
Verona, Missouri 65769
Lawrence County Commission
1 East Courthouse Square
Mt. Vernon, Missouri 65712
Attn: Presiding Commissioner
Missouri Department of Natural Resources
P.O. Box 176, 1101 Riverside Drive
Jefferson City, Missouri 65102
United States Environmental Protection Agency - Region VII
11201 Renner Blvd.
Lenexa, Kansas 66219
Legal Description: See attached Exhibit B
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Environmental Covenant
Page 2 of 14
ENVIRONMENTAL COVENANT
This Environmental Covenant ("Covenant") is entered into by and between the Grantor,
BCP Ingredients, Inc. ("Owner"), the Grantee, Lawrence County Commission ("Holder"), the
Missouri Department of Natural Resources ("MDNR"), and the United States Environmental
Protection Agency ("EPA") (together, MDNR and EPA shall be referred to as the
"Departments," or may be referred to generically as a "Department" when a provision could
apply to either) pursuant to the Missouri Environmental Covenants Act, Sections 260.1000
through 260.1039, RSMo. Owner, Holder, and the Departments may collectively be referred to
as the "Parties" herein.
RECITALS
WHEREAS, Owner is the owner in fee simple of certain real property commonly known
and numbered as 299 Extension Street, Verona, Lawrence County, Missouri, shown on the site
map attached hereto as Exhibit A, and legally described as:
See attached Exhibit B (the "Property");
WHEREAS, the Property is situated in Lawrence County, Missouri.
WHEREAS, Owner desires to grant to the Holder this Covenant for the purpose of
subjecting the Property to certain activity and use limitations as provided in the Missouri
Environmental Covenants Act.
WHEREAS, the MDNR and EPA each enter into this Covenant as a "Department"
pursuant to the Missouri Environmental Covenants Act, Sections 260.1000 through 260.1039
RSMo, with all the attendant rights of a "Department" under such Act, which include, but are not
limited to, having a right to enforce this Covenant.
WHEREAS, Holder enters into this Covenant as a "Holder" pursuant to the Missouri
Environmental Covenants Act, with all the attendant rights of a "Holder" under such Act, which
include, but are not limited to, acquiring an interest in the Property and a right to enforce this
Covenant.
WHEREAS, Syntex Agribusiness, Inc. ("Syntex") has agreed to conduct on the Property
a supplemental environmental investigation and a remedy protectiveness review, which
separately and together constitute an "environmental response project" (as defined in the
Missouri Environmental Covenants Act) on the Property, pursuant to an Administrative
Settlement Agreement and Order on Consent for Investigations ("AOC") entered among EPA,
the State of Missouri, and Syntex with an effective date of September 6, 2016, United States
Environmental Protection Agency Region VII Docket No. CERCLA-07-2016-0008.
WHEREAS, the environmental response project to be conducted at the Property will
include the activities set forth in the AOC and associated technical work plans.
WHEREAS, it is anticipated that certain contaminants of concern will remain on the
Property above levels that allow for the unrestricted use of the Property.
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Environmental Covenant
Page 3 of 14
WHEREAS, for purposes of the environmental response project described above, and for
purposes of responding to any requests or acting on any submittals made under this Covenant,
EPA shall be the "Lead Agency" and MDNR shall be the "Support Agency" as specified below.
The Departments intend that the Lead Agency will provide reasonable opportunities for
consultation with the Support Agency as described below, and that the Support Agency will
provide input, if any, to the Lead Agency within reasonable timeframes and as appropriate under
the circumstances. If MDNR and EPA subsequently agree to change such roles, then the Lead
Agency shall so notify the current Owner/Transferee and the Holder, with a copy to the Support
Agency.
NOW THEREFORE, Owner, Holder, and the Departments agree to the following:
1. Parties.
The Owner, Holder, and the Departments are parties to this Covenant, and may
enforce it as provided in Section 260.1030, RSMo.
2. Activity and Use Limitations.
Owner hereby subjects the Property to, and agrees to comply with, the following
activity and use limitations:
A. Soil on the Property shall not be excavated or disturbed in any manner
("disturbance") except as follows:
i). The soils in the area of the Property to be subjected to such
disturbance shall be sampled in advance in a representative manner and
characterized using appropriate sampling and analytical methodologies
for:
a) 2,3,7,8-Tetrachlorodibenzo-p-dioxin ("TCDD"), poly-
chlorinated dibenzo-p-dioxins, and polychlorinated dibenzofurans
all as specified in attached Exhibit D, using dioxin toxicity
equivalence factors ("TEFs") to calculate the dioxin toxicity
equivalence ("TEQ") for each sample, expressed in terms of
TCDD toxicity; and
b) Polychlorinated biphenyls ("PCBs") if the disturbance is to
occur in the area of a historic PCB spill and remediation at the
Property that is designated on attached Exhibit C;
and assessed for potential human health risks associated with worker
exposures. Any excavated soil shall be managed (including but not
limited to, stored, handled, or disposed) in accordance with applicable
requirements and in accordance with a written plan stating how such
excavated soils will be managed;
ii). Owner/T ransferee shall submit the information described in
paragraph 2.A.i of this Covenant, along with any other information
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Environmental Covenant
Page 4 of 14
regarding the scope and details of the proposed activities reasonably
required by the Departments to review the planned disturbance (including
but not limited to, any additional constituent or other analyses the
Departments may reasonably require), to the Departments at least 30 days
before the soil disturbance activities are to begin, along with a request to
engage in such activities, and shall obtain written approvals from the
Departments before commencing such activities. The Lead Agency (after
a reasonable opportunity for consultation with the Support Agency) may
deny the request to disturb the soils or may require of Owner/Transferee
specific protective or remedial actions before allowing such soil
disturbance activities to occur.
iii). Soil may be disturbed if necessary during an emergency (such as
water or gas main break, fire, explosion or natural disaster), in which case
the Owner/Transferee shall ensure that notification is provided to the
Departments and Holder verbally and in writing as soon as practicable, but
no later than 48 hours after the disturbance begins. Any soil disturbed as
part of an emergency response action shall be staged and managed in
accordance with applicable requirements and shall be returned to its
original location and depth, or properly characterized (including but not
limited to, any additional constituent or other analyses the Departments
may reasonably require), managed and disposed of, in accordance with all
applicable local, state, and federal requirements. Within 30 days after
such emergency has been abated, the Owner/T ransferee shall provide a
written report to the Departments describing such emergency and any
response actions.
B. In addition to any applicable state or local well use restrictions, the
following restrictions shall apply to the Property:
i). Groundwater from the Property shall not be consumed or
otherwise used for any purpose, except for the collection of groundwater
samples for environmental analysis or (when first approved by the Lead
Agency) collection or treatment of groundwater for remedial purposes.
ii). Installation of any new groundwater wells on the Property or other
artificial penetration of any groundwater-bearing unit(s) is prohibited,
except for wells to be used for investigative, monitoring and/or
remediation purposes installed in accordance with a work plan approved
by the Lead Agency (after a reasonable opportunity for consultation with
the Support Agency).
C. Groundwater from Empire Well No. 3 (as shown on Exhibit F) shall not
be used for any purpose. Within 180 days following the execution of this
Covenant, Owner shall permanently close Empire Well No. 3 in accordance with
all applicable local, state, and federal regulations.
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Environmental Covenant
Page 5 of 14
D. Soil surfaces in certain areas of the Property within the existing flood
berm that are in regular use as part of the operating portion of the facility, as
shown in attached Exhibit E, shall be covered with asphalt or concrete and shall
be well maintained to prevent cracks, breaks and potholing. Similar requirements
shall apply to areas of the Property within the existing flood berm that in the
future are put into use as part of the operating portion of the facility, including but
not limited to manufacturing operations, material handling and storage, and motor
vehicle traffic.
E. If any person desires in the future to use the Property for any purpose or in
any manner that is prohibited by this Covenant, the Departments and the Holder
must be notified in advance so that a Modification, Temporary Deviation, or
Termination request can be considered as described below. Further analyses
and/or response actions may be required prior to any such use.
3. Running with the Land.
This Covenant shall be binding upon Owner and Owner's heirs, successors,
assigns, and other transferees in interest (collectively referred to as "Transferees")
during their period of ownership (except that the obligation described below in
paragraph 17 to re-direct any mis-directed communication shall continue beyond
an Owner/Transferee's period of ownership) and shall run with the land, as
provided in Section 260.1012, RSMo, subject to amendment or termination as set
forth herein. The term "Transferee(s)," as used in this Covenant, shall mean any
future owner of any interest in the Property or any portion thereof, including, but
not limited to, owners of an interest in fee simple, mortgagees (subject to
applicable lender liability protections prescribed by law), easement holders,
and/or lessees.
4. Location of Files and Records.
Records of this environmental response project for the Property are currently
located in EPA's offices in Lenexa, Kansas, and in MDNR's offices in Jefferson
City, Missouri. Information regarding the environmental response project may be
obtained from the Departments by making a request to EPA pursuant to the
United States Freedom of Information Act, 5 U.S.C. § 552, and/or to MDNR
pursuant to the Missouri "Sunshine Law", Chapter 610, RSMo, by referencing the
Site identification name of Syntex Facility Superfund Site, Verona, Missouri.
5. Enforcement.
Compliance with this Covenant may be enforced as provided in Section 260.1030,
RSMo. Failure to timely enforce compliance with this Covenant or the activity
and use limitations contained herein by any party shall not bar subsequent
enforcement by such party and shall not be deemed a waiver of the party's right to
take action to enforce any non-compliance. Nothing in this Covenant shall
restrict any person from exercising any authority or rights under any other
applicable law.
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Environmental Covenant
Page 6 of 14
In addition to or in lieu of any other remedy authorized by law, prior to taking
legal action to enforce this Covenant, a Department may require
Owner/Transferee to submit a plan to investigate and/or correct any alleged
violation of this Covenant, in which case such Department shall provide written
notification to the other Department and the Holder. If such Owner/Transferee
fails to act within the required timeframe or if a Department finds a proposed
remedy unacceptable, that Department may pursue any remedy authorized by law.
In such event, such Department shall provide written notification to the other
Department and the Holder prior to or contemporaneously with any legal action
taken to enforce this Covenant.
6. Right of Access.
Owner, on behalf of itself and any Transferees, hereby grants to the Holder and
the Departments and their respectively authorized agents, contractors, and
employees, the right to access the Property at all reasonable times for
implementation, monitoring, inspection, or enforcement of this Covenant and the
related environmental response project. Nothing herein shall be deemed to limit
or otherwise impede a Department's rights of access and entry under federal or
state law or other agreement.
7. Compliance Reporting.
Owner/T ransferee shall submit to Holder and the Departments, by no later than
January 31st of each year, documentation verifying that the activity and use
limitations imposed hereby were in place and complied with during the preceding
calendar year. The Compliance Report shall include the following statement,
signed by Owner/Transferee:
I certify that to the best of my knowledge, after thorough
evaluation of appropriate facts and information, the information
contained in or accompanying this submission is true, accurate and
complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fine and
imprisonment for knowing violations.
In the event that an Owner, Transferee, or Holder becomes aware of any
noncompliance with the activity and use limitations described in paragraph 2
above, such person or entity shall notify all other Parties to this Covenant in
writing as soon as possible, but no later than ten (10) business days thereafter.
8. Additional Rights.
None Specified
9. Notice upon Conveyance.
Each instrument hereafter conveying any interest in the Property or any portion of
the Property shall contain a notice of the activity and use limitations set forth in
this Covenant, and provide the recording reference for this Covenant. The notice
shall be substantially in the following form:
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Environmental Covenant
Page 7 of 14
THE INTEREST CONVEYED HEREBY IS SUBJECT TO AN
ENVIRONMENTAL COVENANT, DATED , 20__,
RECORDED IN THE OFFICE OF THE RECORDER OF DEEDS
OF LAWRENCE COUNTY, MISSOURI ON , 20_,
AS DOCUMENT , BOOK , PAGE .
Owner/Transferee shall notify Holder and the Departments within ten (10) days
following each conveyance of an interest in any portion of the Property. The
notice shall include the name, address, and telephone number of the Transferee,
and a copy of the deed or other documentation evidencing the conveyance.
10. Representations and Warranties.
Owner hereby represents and warrants to Holder and the Departments that:
A. Owner has the power and authority to enter into this Covenant, to
grant the rights and interests herein provided and to carry out all of
Owner's obligations hereunder;
B. This Covenant will not materially violate or contravene or
constitute a material default under any other agreement, document, or
instrument to which Owner is a party or by which Owner may be bound or
affected; and
C. Owner is the sole owner of the Property in fee simple, which is not
subject to a mortgage, deed of trust, or other lien. Certain portions of the
Property are subject to reservations of mineral rights and easements and
restrictions of record. In the event any person seeks to enter the Property
and exercise rights pursuant to such reservations, easements, or
restrictions, Owner/Transferee shall provide notice as described in
paragraph 16.
11. Amendments, Termination, and Temporary Deviations.
This Covenant may be amended or terminated by approval of the Departments,
Holder, and the current Owner/Transferee of record at the time of such
amendment or termination, pursuant to Section 260.1027 RSMo. Any other
Parties to this Covenant hereby waive the right to consent to any amendment to,
or termination of, this Covenant. Following signature by all requisite persons or
entities on any amendment or termination of this Covenant, Owner/Transferee
shall record and distribute such documents as described below.
Temporary Deviations from the obligations or restrictions specified in this
Covenant may be approved by the Lead Agency in lieu of a permanent
amendment to this Covenant. Owner/T ransferee may submit a written request to
the Departments to temporarily deviate from specified requirements described
herein for a specific purpose and timeframe, which shall not exceed ninety (90)
days. Any such request shall be transmitted to the Holder and the Departments as
described below. The request must specifically invoke this paragraph of this
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Environmental Covenant
Page 8 of 14
Covenant, fully explain the basis for such Temporary Deviation, and demonstrate
that protection of human health and the environment will be maintained. After a
reasonable opportunity for consultation with the Support Agency, the Lead
Agency will evaluate the request and convey approval or denial in writing.
Owner/Transferee may not deviate from the requirements of this Covenant unless
and until such approval has been obtained.
12. Severability.
If any provision of this Covenant is found to be unenforceable in any respect, the
validity, legality, and enforceability of the remaining provisions shall not in any
way be affected or impaired.
13. Governing Law.
This Covenant shall be governed by and interpreted in accordance with the laws
of the State of Missouri.
14. Recordation.
Within thirty (30) days after the date of the final required signature upon this
Covenant or any amendment or termination thereof, Owner shall record this
Covenant with the appropriate recorder of deeds for each county in which any
portion of the Property is situated. Owner shall be responsible for any costs
associated with recording this Covenant.
15. Effective Date.
The effective date of this Covenant shall be the date upon which the fully
executed Covenant has been recorded with the office of the recorder of the county
in which the Property is situated.
16. Notice of Covenant.
Within thirty (30) days following the recording of this Covenant, or any
amendment or termination of this Covenant, Owner/Transferee shall, in
accordance with Section 260.1018, RSMo, distribute a file- and date-stamped
copy of such Covenant along with any amendment or termination, as recorded
with the appropriate recorder of deeds (including book and page numbers) to: (a)
each of the Parties hereto; (b) each person holding a recorded interest in the
Property, including any mortgagees or easement holders; (c) each person in
possession of the Property; (d) each municipality or other unit of local
government in which the Property is located; and (e) any other person designated
herein. Upon receiving notice of any person's intent to enter the Property to
perform maintenance, construction, repair, replacement, or excavation activities
pursuant to the terms of a document creating such a right in that person,
Owner/T ransferee shall (i) notify such person, in writing, of this Covenant and the
activity and use restrictions contained in paragraph 2 of this Covenant; (ii)
promptly send to the Departments written correspondence advising the
Departments of the foregoing notice of intent to enter the Property, with copies to
the person who provided such notice of intent to enter; and (iii) take all reasonable
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Environmental Covenant
Page 9 of 14
measures to ensure that such person complies with the terms and provisions of
this Covenant.
17. Contact Information.
Any document or other item required by this Covenant to be given to another
party hereto shall be sent to:
If to Owner:
Facility Manager
BCP Ingredients, Inc.
299 Extension Street
Verona, Missouri 65769
If to Holder:
Lawrence County Commission
1 East Courthouse Square
Mt. Vernon, Missouri 65712
Attn: Presiding Commissioner
If to MDNR:
Project Manager - Syntex Facility Superfund Site
Remedial Section, Hazardous Waste Program
P.O. Box 176
Jefferson City, MO 65102-0176
If to EPA:
Project Manager Syntex Facility Superfund Site
U.S. Environmental Protection Agency - Region VII
11201 Renner Blvd.
Lenexa, KS 66219
Owner/Transferee, Holder, or the Departments may change their designated
recipient of such notices by providing written notice of the same to each other. If
any notice or other submittal under this Covenant is received by a former
Owner/T ransferee who no longer has an interest in the Property, then such former
Owner/T ransferee shall notify the Departments, the Holder, and the current
Owner/T ransferee of the Property regarding the mis-directed communication.
18. Reservation of Rights.
This Covenant is a necessary component of the environmental response project
described above. Nothing in this Covenant shall be construed so as to relieve any
Owner/T ransferee from the obligation to comply with this Covenant during their
period of ownership, or the obligation to comply with any other source of law.
This Covenant is not a permit, nor does it modify any permit, order, agreement,
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Environmental Covenant
Page 10 of 14
decree, or judgment issued under any federal, State, or local laws or regulations,
and the Departments do not warrant or aver in any manner that an
Owner/Transferee's compliance with this Covenant will constitute compliance
with any such requirements. The Departments reserve all legal and equitable
remedies available to enforce this Covenant or any other legal requirement, and/or
to address any release or threat of release that may present an imminent and
substantial endangerment to the public health or welfare or the environment
arising at, or posed by, the Property. Nothing herein shall be construed so as to
prevent a Department or Holder from taking any independent actions as allowed
by law.
19. Defined Terms.
Terms used but not defined in this Covenant shall have the meanings assigned to
them in the Missouri Environmental Covenants Act.
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Environmental Covenant
Page 11 of 14
The undersigned represent and certify that they are authorized to sign this Covenant on behalf of
their respective Parties.
IT IS SO AGREED:
FOR OWNER:
By:/(i^ ^^ C Date: / c.e/t*8ee- "2,0
Name (print): d. Jtrr^e H
Title: 5cC-S.BT»P-lf t >etzA<- Ce>v*jsere_
Address: *s z "S^aJ/z/sb fae. x. R oAT>
fJch) W*'* prod , aJ ¥ / 01 >
STATE OF
COUNTY OF
omfjgv
f, 20jf, before me, a Notary Public in and for said state,
k~> . Secfo+aiy ¥ GznenU Poix^i
On this (p
personally appean
of ffcf ZX C\ \¥)Yl^ A- V K • » known to me to be the person who
executed the witmn Covenant on behalf of said corporation and acknowledged to me that he/she
executed the same for the purposes therein stated.
My coimrission expires:
March 25, 2022
otary Public Christine M. Lenkowski
CHRISTINE M. LENKOWSKI
Notary Public, State of New York
No. 011 E6072009
Qualified in Dutcness County MX
Commission Expires March 25, 20®
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Environmental Covenant
Page 12 of 14
FOR HOLDER;
A*.
By:
Title:
Date: _j4t>V< *£,Z©t£
STATE OF I^I^jllSaL
COUNTY OF &iM AW -
On this/.5"^fay of N oV , 20//, before me, a Notary Public in and for said state,
personally appeared of
($***.bf , known to me to be the person who executed the within
Covenant on behalf of said corporation and acknowledged to me that he/she executed the same
for the purposes therein stated.
AUCtAHtER
My C«em$tofi Expires
July 28,2020
Christian County
Commission #12534773
Z » • z
'<€£. SEAL
a
VA CA
a ¦ •
My commission expires;
July 25, 2020
Cv4»—
Notary Public Alicia Tyler
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Environmental Covenant
Page 13 of 14
Missouri Department ofNatural Resources
P.O. Box 176
Jefferson City, MO 65102-0176
STATE OF MISSOURI )
)
COUNTY OF^O^flJDL )
On thistff day of , 201^ before me, a Notary Public in and for said state,
personally appeared John Jurgensmeyer, Director of the Hazardous Waste Program of the
Missouri Department of Natural Resources, a state agency, known to me to be the person who
executed the within Covenant on behalf of said agency by authority of its Director and
acknowledged to me that he executed the same for the purposes therein stated.
My commission expires:
May 25, 2022
Notary Public
Debra D. Dqbson
DEBRA D. D0BS0N
Notary Public - Notary Seal
State of Missouri
Commissioned for Morgan County
My Commission Expires: May 25,2022
Commission Number: 14642864
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Environmental Covenant
Page 14 of 14
FOR EPA
By: . (YW fi fyjjAyHTO Date: _ U|^$j
Name (print): PiW^oO
Title: O'^rlM-or 3
Address: \\%0\ HtmiW fclv$
yVS Ub^l 1
STATE OF. . ^ ^ _____ )
COUNTY OF OqVnaSw^ )
On thisM 6A day of ! iJ i (, 20' % before me, a Notary Public in and for said ,stat<;,
personally appeared f- . Q.Uf (Vol AaI
of the U.S. Environmental Protection Agency - Region VII, a federal agency, known to be to be
the person who executed the within Covenant on behalf of said agency by authority of its
Administrator and acknowledged to me that he executed the same for the purposes therein stated.
NOTMW WBUC - SW» e» rnmm
SARAH A. MORENO
My ApfS. Exp** ¦
Notary Public
3tary Public
Sara A. Moreno
My commission expires 11/24/2022
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J Verona, Missouri)
LEGEND
Property Boundary
—— Building Outline
X — Fence
Railroad
— River
This drawing is neither a legally recorded map nor a survey and is
not intended to be used as one. This drawing is a compilation of
records, information and data used for reference purposes only.
NOTES:
1. Coordinate System: M083-WF
#Foth
EXHIBIT A
PROPERTY
VERONA, MISSOURI
Date: FEBRUARY 2017 Revision Date:
Drawn By: DAT Checked By: RMK Scope: 15S239
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Exhibit B
Legal Description
That part of the parcels described in the Lawrence County Recorder's Office in Book 264
at page 324, lying North and East of Spring River and West of the West railroad right-of-
way. Being a part of Section 17, Township 26 North, Range 26 West, Lawrence County,
Missouri and more particularly described as follows:
TRACT I
Beginning at the Southeast corner of the Northeast Quarter of the Southwest Quarter of
Section 17, Township 26 North, Range 26 West; thence North 89°5r54" West, 188.47
feet, to the center of Spring River; thence along the River centerline, North 43°52'19"
West, 44.75 feet; thence North 58°46'56" West, 100.82 feet; thence North 80°3r55"
West, 51.71 feet; thence South 64°25'30" West, 92.90 feet; thence North 86°00'22" West,
52.35 feet; thence North 67049'16" West, 35.41 feet; thence North 35°38*15" West, 68.78
feet; thence North 03°05'28" West, 45.03 feet; thence North 15°41 '57" West, 40.39 feet;
thence North 02°55'08" West, 119.25 feet; thence North 10°20'24" West, 297.70 feet;
thence North 10°42'22" East, 45.76 feet; thence North 21°47'17" East, 104.70 feet; thence
North 07°30'42" East, 176.51 feet; thence North 20°26'13" West, 76.51 feet; thence North
05°26'12" West, 153.81 feet; thence North 12°47'46" West, 54.83 feet; thence North
04°12'58" East, 297.32 feet; thence North 02°32'36" West, 54.74 feet; thence North
08°25'17" East, 530.70 feet; thence North 10°17'48" West, 27.17 feet; thence North
18°51'25" East, 101.45 feet; thence North 05°11'27" East, 67.11 feet; thence North
12°37'30" West, 72.23 feet; thence North 05°24'40" East, 257.56 feet; thence North
16°58'48" East, 91.48 feet; thence North 04°06'26" East, 203.46 feet; thence North
05°18'4r West, 52.48 feet; thence North 16049'21" East, 398.64 feet; thence North
31°44,32" East, 60.02 feet; thence North 05°11'29" West, 53.69 feet; thence North
30°41 *45" West, 142.74 feet; thence North 00°42'56" West, 97.23 feet; thence North
14°52'35" East, 198.66 feet; thence North 25°40'43" East, 119.87 feet, to the North line of
the aforementioned Section 17; thence North 89°58'12" East 278.39 feet, to the Northeast
corner of the Northeast Quarter of the Northwest Quarter of said Section 17; thence
continuing along the North Section line, North 89°58'12" East, 797.54 feet, to the West
right-of-way of the railroad; thence with the aforesaid right-of-way, 565.43 feet along a
1920.74 foot radius curve to the left, whose chord bears South 10°40'36" West, 563.40
feet, to the North line of the city owned tract; thence along the perimeter of the aforesaid
tract, North 89°59'54" West, 281.83 feet; thence South 00°32'01" West, 775.08 feet;
thence South 89°59'54" East, 281.00 feet, to the aforesaid railroad right-of-way; thence
South 00°31 '21" West, 1033.06 feet, to point of curvature; thence 993.50 feet along a
5494.12 foot radius curve to the right, whose chord bears South 05°42'11" West, 992.15
feet; thence radial to the curve, North 79°07'00" West, 75.00 feet; thence 476.02 feet
along a 5419.12 foot radius curve to the right, whose chord bears South 13°23'59" West,
475.87 feet, to the North right-of-way of a public road; thence along aforesaid right-of-
way, North 89°56'34" West, 174.23 feet; thence 201.96 feet along a 250.00 foot radius
non tangent curve to the left, whose chord bears South 57°13'18" West, 196.52 feet;
thence South 49°12'03" West, 76.16 feet, to the Quarter Section line; thence South
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00°03'27" West, 5.86 feet to the point of beginning, all lying in Section 17, Township 26
North, Range 26 West, Lawrence County, Missouri.
TRACT II
A parcel lying North of Spring River, West of the Railroad right-of-way and South of the
public road right-of-way. Being more particularly described as commencing at the
Southwest corner of the Northwest Quarter of the Southeast Quarter of Section 17,
Township 26 North, Range 26 West; thence South 00°03'27" West, 99.73 feet; thence
South 83°26'44" East, 56.33 feet, to a point on the South right-of-way of a public road,
for a point of beginning; thence along said right-of-way, North 38°43'55" East, 239.86
feet; thence North 76°18'10" East, 172.77 feet; thence South 89°56'34" East, 11.76 feet, to
the Westerly right-of-way of the railroad; thence with said railroad right-of-way 91.39
feet along a 5419.12 foot radius curve to the right, whose chord bears South 16°50'22"
West, 91.39 feet; thence South 17°20'32" West, 277.74 feet, to the centerline of Spring
River; thence along aforesaid centerline, North 49°40'32" West, 112.43 feet; thence North
68°58'11" West, 144.69 feet, to the point of beginning. All lying in the West Half of the
Southeast Quarter of Section 17, Township 26 North, Range 26 West, Lawrence County,
Missouri.
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EXHIBIT C
Historic PCB Spill and Remediation Area
Environmental Covenant
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I CP CONTROL POINT
*,p FOUND IRON PJN
SET IRON PIN
LEGEND
HISTORICAL PCS SPILL
AND REMEDIATION AREA
P.O.C.
P.O.B.
POINT OF COMMENCEMENT
POINT OF BEGINNING
GRAPHIC SCALE
SEC. 17, T26N, R26W
NOT TO SCALE
SElll
569*11'30 *E 77.00'
BUILDING
V-25
W5 li S3, n
mm acres
S00'30'21"*
20.00'
srr f\
N89'24"08>
2535,66'
*~V"
SET IP N8Sri7T5Tr 56.94' sf7 F
| won.
§
BUILDING
V-11
P
Sfe
8 5
§-
z
SURVEY DESCRIPTION
V
fflMfOBOT®
m ms mm *xmr ammia mi mmm e m m
stmt ms mate mm. ms mm is * mnic immmm
or m mm or m rnxm as mm iommw of wr mem
-ofscapiiw. m mtm mmm won or me is am at turna
A TRACT OF LAND AS LYING IN THE SOUTHWEST QUARTER OF THE NORTHEAST QUARTER Of SECTION 17,
TOWNSHIP 26 NORTH, RAMGE 26 WEST AND SAID TRACT BEING MORE PARTICULARLY DESCRIBED AS FOLLOWS:
COMMENCING AT THE SOUTHEAST CORNER OF THE SOUTHEAST QUARTER OF WE NORTHEAST QUARTER OF
SECTION 17, TOWNSHIP 26 NORTH. RANGE 26 WEST: THENCE ALONG THE EAST LINE OF THE SOUTHEAST
QUARTER, OF THE NORTHEAST QUARTER OF SECTION 17, NORTH 00*3552" EAST. 712.79 FEET: THENCE LEAVING
said east um, mm smw west, 2S3sm to we point of segwwng. thence south m-mr west,
20.00 FEET; THENCE NORTH SS'SSW WEST, 20.00 FEET; THENCE SOUTH W57V2" WEST, 32.00 FEET; THENCE
NORTH mTW WEST, 56.94 FEB; THENCE NORTH 0P4W EAST, SLOO FEET; THENCE SOUTH BS'tW EAST,
71W FEET TO WE POINT OF BEGINNING. ALL LYING IN THE SOUTHWEST QUARTER OP THE NORTHEAST QUARTER
OF SECTION 17. TOWNSHIP 26 NORTH, RANGE 26 WEST, LAWRENCE COUNTY, MISSOURI. CONTAINING 0.077 ACRES,
MORE OR LESS. BEARINGS BASED ON GRID NORTH OF THE MISSOURI COORDINATE SYSTEM OF m. WEST ZONE.
P.O.C,1
SE. CORNER OF tHE
SE 1 /4 OF THE NE. 1?4 OF
SEC. I7.T26N, R2|6W
s, mi m Bmmr sum? wm mm m im mat m
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o«!
31
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9®§
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EXHIBIT D
Dioxins and Furans
Environmental Covenant
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Exhibit D
Dioxins and Furans
CAS Number
Compound
1746-01-6
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)
40321-76-4
1,2,3,7,8-Pentachlorodibenzo-p-dioxin (PnCDD)
39227-28-6
1,2,3,4,7,8-Hexachlorodibenzo-p-dioxin (HxCDD)
57653-85-7
1,2,3,6,7,8-Hexachlorodibenzo-p-dioxin (HxCDD)
19408-74-3
1,2,3,7,8,9-Hexachlorodibenzo-p-dioxin (HxCDD)
35822-46-9
1,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin (HpCDD)
3268-87-9
1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin (OCDD)
51207-31-9
2,3,7,8-T etrachlorodibenzofuran (TCDF)
57117-41-6
1,2,3,7,8-Pentachlorodibenzofuran (PnCDF)
57117-31-4
2,3,4,7,8-Pentachlorodibenzofuran (PnCDF)
70648-26-9
1,2,3,4,7,8-Hexachlorodibenzofuran (HxCDF)
57117-44-9
1,2,3,6,7,8-Hexachlorodibenzofuran (HxCDF)
72918-21-9
1,2,3,7,8,9-Hcxachlorodibenzofuran (HxCDF)
60851-34-5
2,3,4,6,7,8-Hexachlorodibenzofuran (HxCDF)
67562-39-4
1,2,3,4,6,7,8-Heptachlorodibenzofuran (HpCDF)
55673-89-7
1,2,3,4,7,8,9-Heptachlorodibenzofuran (HpCDF)
39001-02-0
1,2,3,4,6,7,8,9-Octachlorodibenzofuran (OCDF)
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EXHIBIT E
Pavement Areas
Environmental Covenant
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SHADED AREAS
DEPICT AREAS OF
PAVEMENT
N 89°59'22" W
N: 290664.53
E: 2994727.56'
GRID
EXISTING
BUILDING
GRAPHIC SCALE
0 400
200
1 i ] , 1 i I . 1 Feet
18SP20132.DWG
0a
ANDERSON
ENGINEERING
EMPLOYEE OWNED
ENGINEERS SURVEYORS'LABORATORIES DRILLING
30SSWA0CXXA:® SPRlfKJFSLD MISSOURI5MO PHONE |41 * K6-:M1
exhibit e
PROPERTY PAVEMENT AREAS
VERONA, MO
f DRAWN BY
\
RAP
DATE
11-8-18
CLIENT NO
^ 18SP20132
/
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EXHIBIT F
Empire Well No. 3 Location
Environmental Covenant
-------
-------
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Recorded in Lawrence County, Missouri
Recording Date/Time: 04/13/2022 at 08:19:36 AM
Book: 458 Page: 2103 vAo§/,,
Instr #: 2022002116
| :SEAL: |
Pages: 16
Fee: $69.00 S
'III IIIU^
Electronically Recorded Pam Robertson
Recorder of Deeds
Document Title:
Document Date:
Grantor:
Grantee:
Departments:
(ABOVE SPACE RESERVED FOR RECORDER'S USE)
Environmental Covenant
March 3f , 2022
Syntex Agribusiness, Inc.
Legal Department
l DNA Way (MS-49)
South San Francisco. CA 94080
Syntex Agribusiness, Inc.
Legal Department
I DNA Way (MS-49)
South San Francisco. CA 94080
Missouri Department of Natural Resources
P.O. Box I 76. I 101 Riverside Drive
Jefferson City. MO 65102
United States Environmental Protection Agency - Region V11
I 1201 Renner Blvd.
Lenexa, KS 66219
Legal Description:
See attached Exhibit B
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ENVIRONMENTAL COVENANT
(North Property)
This Environmental Covenant (Covenant) is entered into by and between the Grantor,
Syntex Agribusiness, Inc., a Delaware corporation (Owner), the Grantee, Syntex Agribusiness,
Inc., a Delaware corporation (Holder), the Missouri Department of Natural Resources (MDNR),
and the United States Environmental Protection Agency (USEPA) (together, MDNR and USEPA
shall be referred to as the "Departments," or may be referred to generically as a "Department"
when a provision could apply to either) pursuant to the Missouri Environmental Covenants Act,
Sections 260.1000 through 260.1039 of the Revised Statutes of Missouri (RSMo). Owner, Holder,
and the Departments may collectively be referred to as the "Parties" herein or individually as a
"party."
RECITALS
WHEREAS, Owner is the owner in fee simple of certain real property commonly known
and numbered as 14317 Lawrence 2210, Verona, Missouri, shown on the site map attached hereto
as Exhibit A. and legally described on the attached Exhibit B (the Property);
WHEREAS, the Property is situated in Lawrence County, Missouri;
WHEREAS, Owner desires to grant to itself, as Holder, this Covenant for the purpose of
subjecting the Property to certain activity and use limitations as provided in the Missouri
Environmental Covenants Act, and Owner further desires to accept this covenant as a Holder
pursuant to the Missouri Environmental Covenants Act, with all the attendant rights of a Holder
under such Act, which include, but are not limited to, acquiring an interest in the Property, as
Holder, that will survive its current fee ownership of the Property and a right to enforce this
Covenant;
WHEREAS, MDNR and USEPA each enters into this covenant as a "Department"
pursuant to the Missouri Environmental Covenants Act, Sections 260.1000 through 260.1039,
RSMo, with all the attendant rights of a "Department" under such Act, which include but are not
limited to having a right to enforce this Covenant;
WHEREAS, Owner agreed in 1983 with USEPA to enter a Consent Agreement and Order,
No. 83-H-008, pursuant to which Owner undertook to investigate and remedy soil and groundwater
environmental impacts at the Syntex Facility Superfund Site (the Syntex Facility Superfund Site)
under the supervision and approval of USEPA. Owner agreed in 2016 to conduct a supplemental
environmental investigation and a remedy protectiveness review at the Syntex Facility Superfund
Site pursuant to an Administrative Settlement Agreement and Order on Consent for Investigations
(AOC) entered among USEPA, the State of Missouri, and Owner with an effective date of
September 6, 2016, United States Environmental Protection Agency Region VII Docket No.
CERCLA-07-2016-0008. The supplemental investigation identified 1,4-dioxane migrating in
groundwater beneath the Property. The restrictions on the use of the Property contained in this
Covenant will reduce the potential for exposures to this contaminant of concern. Prior
2
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environmental investigations and remedial activities, including but not limited to those referred to
above, separately and together constitute an "environmental response project" as defined in the
Missouri Environmental Covenants Act.
WHEREAS, the contaminant of concern is present on or in the groundwater of the
Property; and
WHEREAS, the protective measures described in this Covenant will reduce the potential
for exposures to the contaminant of concern; and
WHEREAS, for purposes of the environmental response project described above, and for
purposes of responding to any requests or acting on any submittals made under this Covenant,
USEPA shall be the "Lead Agency" and MDNR shall be the "Support Agency," as specified
below. The Departments intend that the Lead Agency will provide reasonable opportunities for
consultation with the Support Agency as described below, and that the Support Agency will
provide input, if any, to the Lead Agency within reasonable timeframes and as appropriate under
the circumstances. If MDNR and USEPA subsequently agree to change such roles, then the Lead
Agency shall so notify the current Owner or Transferee (Owner/Transferee) and the Holder in
writing, with a copy to the Support Agency.
NOW THEREFORE, Owner, Holder, and the Departments agree to the following:
1. Parties. The Owner, Holder, and the Departments are parties to this Environmental
Covenant, and may enforce it as provided in Section 260.1030, RSMo.
2. Activity and Use Limitations. Owner hereby subjects the Property to, and agrees to
comply with, the following activity and use limitations:
A. No Drilling or Use of Groundwater: In addition to any applicable state or local well
use restrictions, the following restrictions shall apply to the Property:
i. Groundwater from the Property shall not be consumed or otherwise used
for any purpose, except for the collection of samples for environmental
analysis purposes, collection or treatment of groundwater for remedial
purposes, or collection or treatment of groundwater as part of excavation or
construction activities.
ii. There shall be no drilling or other artificial penetration of any
groundwater-bearing unit(s) containing contaminants, unless performed in
accordance with a work plan approved by one or both of the Departments.
iii. Installation of any new groundwater wells on the Property is prohibited,
except for wells used for investigative, monitoring, and/or remediation
purposes installed in accordance with a work plan approved by one or both
of the Departments.
B. Activities on the Property shall not materially and unreasonably interfere with
3
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environmental investigation or remediation activities on the Property.
If Owner or any Transferee desires in the future to use the Property for any purpose or in
any manner that is prohibited by this Covenant, the Departments and the Holder must be
notified in advance as provided below so that a Modification, Temporary Deviation, or
Termination request can be considered. Further analyses and response actions may be
required before any such use.
3. Running with the Land. This Covenant shall be binding upon Owner and Owner's heirs,
successors, assigns, and other transferees in interest (collectively referred to as Transferees)
during their period of ownership, and shall run with the land, as provided in Section
260.1012, RSMo, subject to amendment or termination as set forth herein. The term
"Transferee(s)," as used in this Covenant, shall mean any future owner of any interest in
the Property or any portion thereof, including, but not limited to, owners of an interest in
fee simple, mortgagees (subject to applicable lender liability protections prescribed by
law), easement holders, and/or lessees. Each transferee shall be deemed to be a party hereto
for purposes of the terms and conditions of this Covenant.
4. Location of Files and Records. Records of the environmental response project described
above are currently located in the Supporting Agency's office in Jefferson City, Missouri,
Information regarding the project may be obtained from the Supporting Agency through a
request under Chapter 610, RSMo, commonly referred to as the Missouri Sunshine Law,
to the Supporting Agency's Custodian of Records, referencing the site identification name
of Syntex Facility Superfund Site, Verona, Missouri. Records of the environmental
response project are also located in the Lead Agency's office in Lenexa, Kansas.
Information regarding the project may be obtained from the Lead Agency through a request
pursuant to the Freedom of Information Act.
5. Enforcement. Compliance with this Covenant may be enforced as provided in Section
260.1030, RSMo. Failure to timely enforce compliance with this Covenant or the activity
and use limitations contained herein by any party shall not bar subsequent enforcement by
such party and shall not be deemed a waiver of the party's right to take action to enforce
any non-compliance. Nothing in this Covenant shall restrict any person from exercising
any authority under any other applicable law.
In addition to or in lieu of any other remedy authorized by law, prior to taking legal action
to enforce this Covenant, the Departments may require Owner/Transferee to submit a plan
to investigate and/or correct any alleged violation of this Covenant. If such
Owner/Transferee fails to act within the required timeframe or if the Departments finds a
proposed remedy unacceptable, the Departments may pursue any remedy authorized by
law.
6. Right of Access. Owner, on behalf of itself and any Transferees, hereby grants to the
Holder and the Departments and their respectively authorized agents, contractors, and
employees, the right to access the Property at all reasonable times for implementation,
4
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monitoring, inspection, or enforcement of this Covenant and the related environmental
response project. Nothing herein shall be deemed to limit or otherwise impede the
Departments' rights of access and entry under federal or state law or other agreement.
7. Compliance Reporting. Owner/Transferee shall submit to Holder and the Departments,
by no later than January 31 of each year, documentation verifying that the activity and use
limitations imposed hereby were in place and complied with during the preceding calendar
year. The Compliance Report shall include the following statement, signed by
Owner/Transferee:
I certify that to the best of my knowledge, after thorough evaluation of
appropriate facts and information, the information contained in or
accompanying this submission is true, accurate and complete. I am aware
that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
In the event that an Owner, Transferee, Holder, or a Department becomes aware of any
noncompliance with the activity and use limitations described in Paragraph 2 above, such
person or entity shall notify all other Parties to this Covenant in writing as soon as possible,
but no later than 10 business days thereafter.
8. Additional Rights. None Specified.
9. Notice upon Conveyance. Each instrument hereafter conveying any interest in the
Property or any portion of the Property shall contain a notice of the activity and use
limitations set forth in this Covenant, and provide the recording reference for this
Covenant. The notice shall be substantially in the following form:
THE INTEREST CONVEYED HEREBY IS SUBJECT TO AN
ENVIRONMENTAL COVENANT, DATED ,
RECORDED IN THE OFFICE OF THE RECORDER OF DEEDS OF
LAWRENCE COUNTY, MISSOURI, ON , AS
DOCUMENT , BOOK , PAGE
Owner/Transferee shall notify Holder and the Departments within 10 days following each
conveyance of an interest in any portion of the Property. The notice shall include the name,
address, and telephone number of the Transferee, and a copy of the deed or other
documentation evidencing the conveyance.
10. Representations and Warranties. Owner hereby represents and warrants to the
Departments:
A. that Owner has the power and authority to enter into this Covenant, to grant the
rights and interests herein provided and to carry out all of Owner's obligations
hereunder;
5
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B. that this Covenant will not materially violate or contravene or constitute a material
default under any other agreement, document, or instrument to which Owner is a
party or by which Owner may be bound or affected; and
C. Owner is the sole owner of the Property in fee simple, which is not subject to a
mortgage, deed oftrust, or other lien; however, certain portions of the Property may
be subject to reservations of mineral rights and easements and restrictions of record.
11. Amendments, Termination, and Temporary Deviations. This Covenant may be
amended or terminated by approval of the Departments, Holder, and the current
Owner/Transferee of record at the time of such amendment or termination, pursuant to
Section 260.1027, RSMo. Any other Parties to this Covenant hereby waive the right to
consent to any amendment to, or termination of, this Covenant. Following signature by all
requisite persons or entities on any amendment or termination of this Covenant,
Owner/Transferee shall record and distribute such documents as described below.
Temporary deviations from the obligations or restrictions specified in this Covenant may
be approved by the Departments in lieu of a permanent amendment to this Covenant.
Owner/Transferee may submit a written request to the Departments to temporarily deviate
from specified requirements described herein for a specific purpose and timeframe, which
shall not exceed 90 days. Any such request shall be transmitted to the Holder and the
Departments as described below. The request must specifically invoke this paragraph of
this Covenant, fully explain the basis for such temporary deviation, and demonstrate that
protection of human health and the environment will be maintained. The Departments shall
evaluate the request and convey approval or denial in writing. Owner/Transferee may not
deviate from the requirements of this Covenant unless and until such approval has been
obtained.
12. Severability. If any provision of this Covenant is found to be unenforceable in any respect,
the validity, legality, and enforceability of the remaining provisions shall not in any way
be affected or impaired.
13. Governing Law. This Covenant shall be governed by and interpreted in accordance with
the laws of the State of Missouri.
14. Recordation. Within 30 days after the date of the final required signature upon this
Covenant or any amendment or termination thereof, Owner shall record this Covenant with
the appropriate recorder of deeds for each county in which any portion of the Property is
situated. Owner shall be responsible for any costs associated with recording this Covenant.
15. Effective Date. The effective date of this Covenant shall be the date upon which the fully
executed Covenant has been recorded with the office of the recorder of the county in which
the Property is situated.
16. Distribution of Covenant. Within 30 days following the recording of this Covenant, or
any amendment or termination of this Covenant, Owner/Transferee shall, in accordance
6
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with Section 260.1018, RSMo, distribute a file- and date-stamped copy of such Covenant
along with any amendment or termination, as recorded with the appropriate recorder of
deeds (including book and page numbers) to: (a) each of the Parties hereto; (b) each person
holding a recorded interest in the Property, including any mortgagees or easement holders;
(c) each person in possession of the Property; (d) each municipality or other unit of local
government in which the Property is located; and (e) any other person designated herein.
Upon receiving notice of any person's intent to enter the Property to conduct activities
reasonably expected to interfere with the activity and use limitations contained in
Paragraph 2 above, Owner/Transferee shall (i) notify such person, in writing, of this
Covenant and the activity and use limitations contained in paragraph 2 and (ii) take all
reasonable measures to ensure that such person complies with the terms and provisions of
this Covenant.
17. Contact Information. Any document or other item required by this Covenant to be given
to another party hereto shall be sent to:
If to Owner:
Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
If to Holder:
Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
If to MDNR:
Project Manager - Syntex Facility Superfund Site
Missouri Department of Natural Resources
Environmental Remediation Program
P.O. Box 176
Jefferson City, MO 65102-0176
If to USEPA:
Project Manager -Syntex Facility Superfund Site
U.S. Environmental Protection Agency - Region VII
11201 RennerBIvd.
Lenexa, KS 66219
Upon the transfer of fee simple to a Transferee, such Transferee shall be deemed to be
7
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substituted for Owner for purposes of this provision. Owner/Transferee, Holder, or the
Departments may change the designated recipient of such notices by providing written
notice of the same to each other. If any notice or other submittal under this Covenant is
received by a former Owner/Transferee who no longer has an interest in the Property, then
such former Owner/Transferee shall notify the Departments, the Holder, and the current
Owner/Transferee of the Property regarding the misdirected communication. In the event
any designated recipient receives any notice hereunder at a time that he or she no longer
serves as a designated representative, such individual shall have an affirmative duty to (i)
notify the sender of the notice of the mistaken delivery and (ii) attempt to forward the
received notice to the currently designated recipient, if known.
18. Reservation of Rights. This Covenant is a necessary component of the environmental
response project described above. Nothing in this Covenant shall be construed so as to
relieve any Owner/Transferee from the obligation to comply with this Covenant during
their period of ownership, or the obligation to comply with any other source of law. This
Covenant is not a permit, nor does it modify any permit, order, agreement, decree, or
judgment issued under any federal, State, or local laws or regulations, and the Departments
do not warrant or aver in any manner that an Owner/Transferee's compliance with this
Covenant will constitute compliance with any such requirements. The Departments reserve
all legal and equitable remedies available to enforce this Covenant or any other legal
requirement, and/or to address any release or threat of release that may present an imminent
and substantial endangerment to the public health or welfare or the environment arising at,
or posed by, the Property. Nothing herein shall be construed so as to prevent a Department
or Holder from taking any independent actions as allowed by law.
19. Defined Terms. Terms used but not defined in this Covenant shall have the meanings
assigned to them in the Missouri Environmental Covenants Act.
20. Recitals. The recitals set forth above are hereby incorporated into this Covenant by
reference.
[Signature Pages to Follow]
8
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The undersigned represent and certify that they are authorized to sign this Covenant on
behalf of their respective Parties.
IT IS SO AGREED:
FOR OWNER:
By:
Date:
. 3-s-<2^
Name: Bruce Resnick
Title: Treasurer
Address: Syntex Agribusiness, Inc.
Legal Department
] DNA Way (MS-49)
South San Francisco. CA 94080
ACKNOWLEDGMENT
A notary public or other officer completing this certificate
verifies only the identity of the individual who signed the
document to which this certificate is attached, and not the
truthfulness, accuracy, or validity of that document.
STATE OF CALIFORNIA
COUNTY OF
On this day of / 2022, before
personally appeared Bruce Resnick, who proved to me on the basis of satisfactory evidence to be
the person whose name is subscribed to the within instrument and acknowledged to me that he
executed the same in his authorizpd capacity, and that by his signature on the instrument the person,
or the entity upon behalf of w'bfch the person acted, executed the instrument.
/
1 certify under PENALJY OF PERJURY under the laws of the State of California that the
foregoing paragraph is true and correct.
/
WITNESS my haod and official seal.
Signature
(Seal)
9
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ACKNOWLEDGMENT
A notary public or other officer completing this
certificate verifies only the identity of the individual
who signed the document to which this certificate is
attached, and not the truthfulness, accuracy, or
validity of that document.
State of California
County of San Mateo )
on March 8, 2022 before me Carlos Rios, Notary Public
personally appeared Bruce Ira Resnick ,
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they executed the same in
his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the
person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing
paragraph is true and correct.
WITNESS my hand and official seal.
{insert name and title of the officer)
(Seal)
-------
FOR HOLDER:
By:
Date:
3 - s- ^
Name: Bruce Resnick
Title: Treasurer
Address: Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
ACKNOWLEDGMENT
A notary public or other officer completing this certificate
verifies only the identity of the individual who signed the
document to which this certificate is attached, and not the
truthfulness, accuracy, or validity of that document.
STATE OF CALIFORNIA
COUNTY OF
On this
dav of
2022, before me,
personally appeared Bruce Resnick, who proved to me on the basis of satisfactory evidence to be
the person whose name is subscribed to tb£ within instrument and acknowledged to me that he
executed the same in his authorized capacity, and that by his signature on the instrument the person,
or the entity upon behalf of which the person acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the
foregoing paragraph is true and correct.
WITNESS my hand aijm official seal.
Signature
(Seal)
10
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ACKNOWLEDGMENT
A notary public or other officer completing this
certificate verifies only the identity of the individual
who signed the document to which this certificate is
attached, and not the truthfulness, accuracy, or
validity of that document.
State of California
County of San Mateo )
Gn March 8, 2022 before me, Carlos Rios/ Notary Public
(insert name and title of the officer)
personally appeared Bruce Ira Resnick ,
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they executed the same in
his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the
person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing
paragraph is true and correct.
WITNESS my hand and official seal
Signature
(Seal)
CARLOS KlQS
Notary Pufcuc - California
S*n *ut« County
Commission « 22*20VO
My Expires Jun I. 2023
-------
Date:
S-9' Zoz?-
Namq:
Title
Address
John DsJjipgensmeyer
Director, Environmental Remediation Program
Missouri Department of Natural Resources
P.O.Box 176
Jefferson City, MO 65102-0176
ACKNOWLEDGMENT
STATE OF ft qu,i~uj
COUNTY OF
f 2022, before me, a Notary Public in and for said state,
D. Jukgensmeyer, Direc
On this ^ day of
personally appeared John D. Jukgensmeyer, Director of the Environmental Remediation Program
of the Missouri Department of Natural Resources, a state agency, known to me to be the person
who executed the within Covenant on behalf of said agency by authority of its Director and
acknowledged to me that such person executed the same for the purposes therein stated.
VNotarj^Public
DEBRA D. D0BS0N
Notary Public - Notary Sea!
State of Missouri
Commissioned for Morgan County
My Commission Expires: May 25,2022
Commission Number: 14642864
11
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FOR USEPA
Name:
Title:
Address:
Date:
¦y
O
f?j /iz.
Scott D. Hayes
Acting Director, Superfund and Emergency Management Division
U.S. EPA, Region 7
11201 Renner Boulevard
Lenexa, Kansas 66219
ACKNOWLEDGMENT
STATE OF )
COUNTY OF - )
On this ^day of M. (jCC ^ 2022, before me, a Notary Public in and for said state,
personally appeared Scott D. Hayes, Acting Director, Superfund and Emergency Management
Division of the U.S. Environmental Protection Agency - Region VII, a federal agency, known to
me to be the person who executed the within Covenant on behalf of said agency by authority of its
Administrator and acknowledged to me that he executed the same for the purposes therein stated.
NOTARY PUBLIC
MHADY
Mv Add*. j*P"05
State of Kama*
R. PETERS
• b/)'-.• 12 2
-/ —
Notary Publicly
12
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EXHIBIT A
DIAGRAM OF PROPERTY
Lawrence 2210
Serine River
North Property
West Area
East Area
legeho
Roads
R^'lpoad
I J E ss: and West Area Bocr-flyies
E9 North Property
\
*7
\
N •
ut.
V
v}
J Verona Misso^n
f
¦">/
1 Foth
Tn» ara^ng is s §931.7 rKortS«i map nor a s-wr* ?y 3-tf s
*ot -itnded lo t» j»j m cc# TTt^draAln^ 1.5 a ccsn^stJesi of
riconjs. ir^rmatson am data useo far ptoses (f ?
Attichment 1 - North Property Map
V'ERG*V4. MISSOURI
Date: FEBRUARY 2C22
Rev-s on Date
Draw. By OAT Ch#oi;ed By RMK Scope 15S236
-------
EXHIBIT B
LEGAL DESCRIPTION
THE SOUTHEAST QUARTER (SE1/4) OF THE SOUTHWEST QUARTER (SW1/4), EXCEPT
ALL THAT PART NORTH AND WEST OF THE COUNTY ROAD AS THE SAME IS NOW
LOCATED, AND THE SOUTHWEST QUARTER (SW1/4) OF THE SOUTHEAST QUARTER
(SE1/4), EXCEPT ALL THAT PART LYING EAST OF THE FORMER MILL RACE, ALL
BEING LOCATED IN SECTION 8, TOWNSHIP 26 NORTH, RANGE 26 WEST, LAWRENCE
COUNTY, MISSOURI.
14
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Recorded in Lawrence County, Missouri
Recording Date/Time: 04/13/2022 at 08:19:35 AM
Book: 458 Page: 2102
Instr #: 2022002115
| :SEAL: |
Pages: 18
Fee: $75.00 S
'III IIIU^
Electronically Recorded Pam Robertson
Recorder of Deeds
(ABOVE SPACE RESERVED FOR RECORDER'S USE)
Document Title:
Document Date:
Grantor:
Grantee:
Departments:
Environmental Covenant
March 3 I . 2022
Syntex Agribusiness. Inc.
Legal Department
I DNA Way (MS-49)
South San Francisco. CA 94080
Syntex Agribusiness, Inc.
Legal Department
I DNA Way (MS-49)
South San Francisco, CA 94080
Missouri Department of Natural Resources
P.O. Box 176, 1101 Riverside Drive
Jefferson City, MO 65102-0176
United States Environmental Protection Agency
1 1201 Renner Blvd.
Lenexa. KS 66219
Region VII
Legal Description: See attached Exhibit B
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ENVIRONMENTAL COVENANT
(West Area)
This Environmental Covenant (Covenant) is entered into by and between the Grantor,
Syntex Agribusiness, Inc., a Delaware corporation (Owner), the Grantee, Syntex Agribusiness,
Inc., a Delaware corporation (Holder), the Missouri Department of Natural Resources (MDNR),
and the United States Environmental Protection Agency (USEPA) (together, MDNR and USEPA
shall be referred to as the "Departments," or may be referred to generically as a "Department"
when a provision could apply to either) pursuant to the Missouri Environmental Covenants Act,
Sections 260.1000 through 260.1039 of the Revised Statutes of Missouri (RSMo). Owner, Holder,
and the Departments may collectively be referred to as the "Parties" herein or individually as a
"party."
RECITALS
WHEREAS, Owner is the owner in fee simple of certain real property commonly known
as the West Area of the Syntex Facility Superfund Site, Verona, Missouri, shown on the site map
attached hereto as Exhibit A, and legally described on the attached Exhibit B (the Property);
WHEREAS, the Property is situated in Lawrence County, Missouri;
WHEREAS, Owner desires to grant to itself, as Holder, this Covenant for the purpose of
subjecting the Property to certain activity and use limitations as provided in the Missouri
Environmental Covenants Act, and Owner further desires to accept this covenant as a Holder
pursuant to the Missouri Environmental Covenants Act, with all the attendant rights of a Holder
under such Act, which include but are not limited to acquiring an interest in the Property, as
Holder, that will survive its current fee ownership of the Property and a right to enforce this
Covenant;
WHEREAS, the MDNR and USEPA each enters into this covenant as a "Department"
pursuant to the Missouri Environmental Covenants Act, Sections 260.1000 through 260.1039,
RSMo, with all the attendant rights of a "Department" under such Act, which include but are not
limited to having a right to enforce this Covenant;
WHEREAS, Owner agreed in 1983 with the USEPA to enter a Consent Agreement and
Order, No. 83-H-008, pursuant to which Owner undertook to investigate and remedy soil and
groundwater environmental impacts at the Syntex Facility Superfund Site (the Syntex Facility
Superfund Site), including the Property, under the supervision and approval of USEPA. Owner
agreed in 2016 to conduct a supplemental environmental investigation and a remedy protectiveness
review at the Syntex Facility Superfund Site, including the Property, pursuant to an Administrative
Settlement Agreement and Order on Consent for Investigation (AOC) entered among USEPA, the
State of Missouri, and Owner with an effective date of September 6, 2016, United States
Environmental Protection Agency Region VII Docket No. CERCLA-07-2016-0008. The
supplemental environmental investigation identified the presence of 2,3,7,8-tetrachoIordibenzo-p-
dioxin in soils in and around disposal trenches and roadways on the Property used in connection
with historic manufacturing activities at the Syntex Facility Superfund Site at low levels below the
2
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risk-based concentrations calculated for potential receptors. Owner's environmental response
activities under the 1983 Order and the 2016 AOC separately and together constitute an
"environmental response project" as defined in the Missouri Environmental Covenants Act;
WHEREAS, the environmental response project being conducted on the Property includes
but is not limited to the activities forth in the AOC and associated technical work plans;
WHEREAS, contaminants of concern are present and, upon completion of the
environmental response project described above, may remain on the Property above levels that
are protective of unrestricted use of the Property as determined by the Departments;
WHEREAS, the Property is deemed protective if and only if the protective measures
described in this Covenant remain in place for as long as the contaminants of concern remain at
the Property; and
WHEREAS, for purposes of the environmental response project described above, and for
purposes of responding to any requests or acting on any submittals made under this Covenant,
USEPA shall be the "Lead Agency" and MDNR shall be the "Support Agency" as specified
below. The Departments intend that the Lead Agency will provide reasonable opportunities for
consultation with the Support Agency as described below, and that the Support Agency will
provide input, if any, to the Lead Agency within reasonable timeframes and as appropriate under
the circumstances. If MDNR and USEPA subsequently agree to change such roles, then the Lead
Agency shall so notify the current Owner/Transferee (Owner/Transferee) and the Holder in
writing, with a copy to the Support Agency.
NOW THEREFORE, Owner, Holder, and the Departments agree to the following:
1. Parties. The Owner, Holder, and the Departments are parties to this Environmental
Covenant, and may enforce it as provided in Section 260.1030, RSMo.
2. Activity and Use Limitations. Owner hereby subjects the Property to, and agrees to
comply with, the following activity and use limitations:
A. Land Use Restrictions: The Property shall not be used for (i) any residential
purpose, which for purposes of this Covenant include, but are not limited to: single
family homes, duplexes, multiplexes, apartments, condominiums, schools, child-
care or senior-care facilities, or any land use where persons can be expected to
reside; (ii) any agricultural purpose, which for purpose of this Covenant include,
but are not limited to: raising livestock or growing any crops or other plants for
harvest; (iii) any recreational purposes, which for purposes of this Covenant
include, but are not limited to: hunting, fishing, camping, off-road motorsports or
bicycling, or other activities of a similar nature; or (iv) timber harvesting above or
beyond general land maintenance activities.
B. Trench Area Restrictions and Obligations: In addition to the other restrictions and
obligations set forth in this Covenant that apply to the Property generally, the
following restrictions shall apply to the portion of the Property commonly known
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as the Trench Area and more fully described on Exhibit C hereto (the Trench Area):
i. The existing clay and vegetative cap in the Trench Area, as shown on
Exhibit C, shall be maintained by Owner/Transferee in perpetuity. Such
maintenance shall include, but not be limited to, performing (i) periodic
regrading and repair to ensure surface water drains from the Trench Area;
(ii) regular mowing and maintenance of the vegetative cover in the Trench
Area to prevent the growth of saplings and other vegetation that could either
then or with the passage of time affect the integrity of the Trench Area cap;
or (iii) any other repairs or maintenance activities reasonably approved by
the Departments to be necessary for the long-term integrity of the Trench
Area cap.
ii. The barbed-wire fence surrounding the Trench Area, as shown on the
attached Exhibit C, shall be maintained in good repair by Owner/Transferee
in perpetuity. Signage advising individuals entering the Property to refrain
from entering the Trench Area unless expressly authorized by the
Owner/Transferee shall be clearly posted and maintained on the Trench
Area fence in both English and Spanish languages.
iii. The existing survey markers delineating the boundaries of the Trench Area
shall not be disturbed or removed, and shall be maintained by
Owner/Transferee and shall be practical to locate and identify.
C. Property Boundary Fence Maintenance: A boundary fence on the north, south, and
west sides of the Property shall be maintained in good repair by Owner/Transferee.
"Private Property; No Trespassing/No Hunting" signage or similar signage
reasonably likely to come to the attention of potential trespassers shall be posted at
various locations along said boundary fence in both English and Spanish languages.
D. No Drilling or Use of Groundwater: In addition to any applicable state or local well
use restrictions, the following restrictions shall apply to the Property:
i. Groundwater from the Property shall not be consumed or otherwise used
for any purpose, except for the collection of samples for environmental
analysis purposes, collection or treatment of groundwater for remedial
purposes, or collection or treatment of groundwater as part of excavation or
construction activities.
ii. There shall be no drilling or other artificial penetration of any groundwater-
bearing unit(s) containing contaminants, unless performed in accordance
with a work plan approved by one or both of the Departments.
iii. Installation of any new groundwater wells on the Property is prohibited,
except for wells used for investigative, monitoring, and/or remediation
purposes installed in accordance with a work plan approved by one or both
of the Departments.
4
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E. Building Restrictions: No building(s) on a permanent foundation shall be
constructed, located, or placed on the Property without written approval of the
Departments.
If Owner or any Transferee desires in the future to use the Property for any purpose or in any
manner that is prohibited by this Covenant, the Departments and the Holder must be notified in
advance in writing so that a Modification, Temporary Deviation, or Termination request can be
considered as described below. Further analyses and/or response actions may be required before
any such use.
3. Running with the Land. This Covenant shall be binding upon Owner and Owner's
heirs, successors, assigns, and other transferees in interest (collectively referred to as Transferees)
during their period of ownership, and shall run with the land, as provided in Section 260.1012,
RSMo, subject to amendment or termination as set forth herein. The term "Transferee(s)," as used
in this Covenant, shall mean any future owner of any interest in the Property or any portion thereof,
including, but not limited to, owners of an interest in fee simple, mortgagees (subject to applicable
lender liability protections prescribed by law), easement holders, and/or lessees. Each transferee
shall be deemed to be a party hereto for purposes of the terms and conditions of this Covenant.
4. Location of Files and Records. Records of the environmental response project
described above are currently located in the Support Agency's office in Jefferson City, Missouri.
Information regarding the project may be obtained from the Support Agency through a request
under Chapter 610, RSMo, commonly referred to as the Missouri Sunshine Law, to the Support
Agency's Custodian of Records, referencing the site identification name of Syntex Facility
Superfund Site, Verona, Missouri. Records of the environmental response project are also located
in the Lead Agency's office in Lenexa, Kansas. Information regarding the project may be obtained
from the Lead Agency through a request pursuant to the Freedom of Information Act.
5. Enforcement. Compliance with this Covenant may be enforced as provided in
Section 260.1030, RSMo. Failure to timely enforce compliance with this Covenant or the activity
and use limitations contained herein by any party shall not bar subsequent enforcement by such
party and shall not be deemed a waiver of the party's right to take action to enforce any
non-compliance. Nothing in this Covenant shall restrict any person from exercising any authority
under any other applicable law.
In addition to or in lieu of any other remedy authorized by law, prior to taking legal action to
enforce this Covenant, the Departments may require Owner/Transferee to submit a plan to
investigate and/or correct any alleged violation of this Covenant. If such Owner/Transferee fails
to act within the required timeframe or if the Departments finds a proposed remedy unacceptable,
the Departments may pursue any remedy authorized by law.
6. Right of Access. Owner, on behalf of itself and any Transferees, hereby grants to
the Holder and the Departments and their respectively authorized agents, contractors, and
employees, the right to access the Property at all reasonable times for implementation, monitoring,
inspection, or enforcement of this Covenant and the related environmental response project.
Nothing herein shall be deemed to limit or otherwise impede the Departments' rights of access and
entry under federal or state law or other agreement. The Parties recognize that access to the
Property is across real property currently owned by BCP Ingredients, Inc. to the east of the Property
5
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and is the subject of a recorded access easement across BCP's property.
7. Compliance Reporting. Owner/Transferee shall submit to Holder and the
Departments, by no later than January 31 of each year, documentation verifying that the activity
and use limitations imposed hereby were in place and complied with during the preceding calendar
year. The Compliance Report shall include the following statement, signed by Owner/Transferee:
I certify that to the best of my knowledge, after thorough evaluation of
appropriate facts and information, the information contained in or
accompanying this submission is true, accurate and complete. I am aware
that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
In the event that an Owner, Transferee, Holder, or a Department becomes aware of any
noncompliance with the activity and use limitations described in Paragraph 2 above, such person
or entity shall notify all other Parties to this Covenant in writing as soon as possible, but no later
than 10 business days thereafter.
8. Additional Rights. None Specified.
9. Notice upon Conveyance. Each instrument hereafter conveying any interest in the
Property or any portion of the Property shall contain a notice of the activity and use limitations set
forth in this Covenant, and provide the recording reference for this Covenant. The notice shall be
substantially in the following form:
THE INTEREST CONVEYED HEREBY IS SUBJECT TO AN
ENVIRONMENTAL COVENANT, DATED
RECORDED IN THE OFFICE OF THE RECORDER OF DEEDS OF
LAWRENCE COUNTY, MISSOURI, ON AS
DOCUMENT , BOOK , PAGE
Owner/Transferee shall notify Holder and the Departments within 10 days following each
conveyance of an interest in any portion of the Property. The notice shall include the name,
address, and telephone number of the Transferee, and a copy of the deed or other documentation
evidencing the conveyance.
10. Representations and Warranties. Owner hereby represents and warrants to the
Departments:
A. that Owner has the power and authority to enter into this Covenant, to grant the
rights and interests herein provided and to carry out all of Owner's obligations
hereunder;
B. that this Covenant will not materially violate or contravene or constitute a material
default under any other agreement, document, or instrument to which Owner is a
party or by which Owner may be bound or affected; and
6
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C. Owner is the sole owner of the Property in fee simple, which is not subject to a
mortgage, deed of trust, or other lien. Certain portions of the Property are or may
be subject to reservations of mineral rights and easements and restrictions of record.
In the event any person seeks to enter the Property and exercise rights pursuant to
such reservations, easements, or restrictions, Owner/Transferee shall provide notice
as described in Paragraph 16.
11. Amendments, Termination, and Temporary Deviations. This Covenant may be
amended or terminated by approval of the Departments, Holder, and the current Owner/Transferee
of record at the time of such amendment or termination, pursuant to Section 260.1027, RSMo. Any
other Parties to this Covenant hereby waive the right to consent to any amendment to, or
termination of, this Covenant. Following signature by all requisite persons or entities on any
amendment or termination of this Covenant, Owner/Transferee shall record and distribute such
documents as described below.
Temporary deviations from the obligations or restrictions specified in this Covenant may be
approved by the Departments in lieu of a permanent amendment to this Covenant.
Owner/Transferee may submit a written request to the Departments to temporarily deviate from
specified requirements described herein for a specific purpose and timeframe, which shall not
exceed 90 days. Any such request shall be transmitted to the Holder and the Departments as
described below. The request must specifically invoke this paragraph of this Covenant, fully
explain the basis for such temporary deviation, and demonstrate that protection of human health
and the environment will be maintained. The Departments shall evaluate the request and convey
approval or denial in writing. Owner/Transferee may not deviate from the requirements of this
Covenant unless and until such approval has been obtained.
12. Severability. If any provision of this Covenant is found to be unenforceable in any
respect, the validity, legality, and enforceability of the remaining provisions shall not in any way
be affected or impaired.
13. Governing Law. This Covenant shall be governed by and interpreted in accordance
with the laws of the State of Missouri.
14. Recordation. Within 30 days after the date of the final required signature upon this
Covenant or any amendment or termination thereof, Owner shall record this Covenant with the
Recorder of Deeds for Lawrence County, Missouri. Owner shall be responsible for any costs
associated with recording this Covenant.
15. Effective Date. The effective date of this Covenant shall be the date upon which
the fully executed Covenant has been recorded with the office of the recorder of the county in
which the Property is situated.
16. Distribution of Covenant. Within 30 days following the recording of this
Covenant, or any amendment or termination of this Covenant, Owner/Transferee shall, in
accordance with Section 260.1018, RSMo, distribute a file- and date-stamped copy of such
Covenant along with any amendment or termination, as recorded with the appropriate recorder of
7
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deeds (including book and page numbers) to: (a) each of the Parties hereto; (b) each person holding
a recorded interest in the Property, including any mortgagees or easement holders; (c) each person
in possession of the Property; (d) each municipality or other unit of local government in which the
Property is located; and (e) any other person designated herein. Upon receiving notice of any
person's intent to enter the Property to conduct activities reasonably expected to interfere with the
activity and use limitations contain in paragraph 2 above, Owner/Transferee shall (i) notify such
person, in writing, of this Covenant and the activity and use restrictions contained in Paragraph 2
of this Covenant and (ii) take all reasonable measures to ensure that such person complies with the
terms and provisions of this Covenant.
17. Contact Information. Any document or other item required by this Covenant to
be given to another party hereto shall be sent to:
If to Owner:
Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
If to Holder:
Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
If to MPNR:
Project Manager - Syntex Facility Superfund Site
Missouri Department of Natural Resources
Environmental Remediation Program
P.O.Box 176
Jefferson City, MO 65102-0176
If to US EPA:
Project Manager -Syntex Facility Superfund Site
U.S. Environmental Protection Agency - Region VII
11201 Renner Blvd.
Lenexa, KS 66219
Upon the transfer of fee simple title to a Transferee, such Transferee shall be deemed to be
substituted for Owner for purposes of this provision. Owner/Transferee, Holder, or the
Departments may change the designated recipient of such notices by providing written notice of
the same to each other. If any notice or other submittal under this Covenant is received by a former
Owner/Transferee who no longer has an interest in the Property, then such former
8
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Owner/Transferee shall notify the Departments, the Holder, and the current Owner/Transferee of
the Property regarding the misdirected communication. In the event any designated recipient
receives any notice hereunder at a time that he or she no longer serves as a designated
representative, such individual shall have an affirmative duty to (i) notify the sender of the notice
of the mistaken delivery and (ii) attempt to forward the received notice to the currently designated
recipient, if known.
18. Reservation of Rights. This Covenant is a necessary component of the
environmental response project described above. Nothing in this Covenant shall be construed so
as to relieve any Owner/Transferee from the obligation to comply with this Covenant during their
period of ownership, or the obligation to comply with any other source of law. This Covenant is
not a permit, nor does it modify any permit, order, agreement, decree, or judgment issued under
any federal, State, or local laws or regulations, and the Departments do not warrant or aver in any
manner that an Owner/Transferee's compliance with this Covenant will constitute compliance with
any such requirements. The Departments reserve all legal and equitable remedies available to
enforce this Covenant or any other legal requirement, and/or to address any release or threat of
release that may present an imminent and substantial endangerment to the public health or welfare
or the environment arising at, or posed by, the Property. Nothing herein shall be construed so as
to prevent a Department or Holder from taking any independent actions as allowed by law.
19. Defined Terms. Terms used but not defined in this Covenant shall have the
meanings assigned to them in the Missouri Environmental Covenants Act.
20. Recitals. The recitals set forth above are hereby incorporated into this Covenant by
reference.
[Signature Pages to Follow]
9
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The undersigned represent and certify that they are authorized to sign this Covenant on
behalf of their respective Parties.
IT IS SO AGREED:
FOR OWNER:
By: Date: 3
Name: Bruce Resnick
Title: Treasurer
Address: Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco. CA 94080
ACKNOWLEDGMENT
A notary public or other officer completing this certificate
verifies only the identity of the individual who signed the
document to which this certificate is attached, and not the
truthfulness, accuracy, or validity of that document.
STATE OF CALIFORNIA
COUNTY OF
On this
day of
2022, before me.
personally appeared Brui c Resnick, who proved to me on the basis of satisfactory evidence to be
the person whose name is subscribed to the within instrument and acknowledged to me that he
executed the same in his authorized capacity, and that by his signature on the instrument the person,
or the entity upon behalf of which the person acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the
foregoing paragraph is tpfe and correct.
WITNESS my haatfand official seal.
Signature
(Seal)
10
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ACKNOWLEDGMENT
A notary public or other officer completing this
certificate verifies only the identity of the individual
who signed the document to which this certificate is
attached, and not the truthfulness, accuracy, or
validity of that document.
State of California
County of San Mateo )
0n March 8, 2022 before me Carlos Rios, Notary Public
(insert name and title of the officer)
personally appeared Bruce Ira Resnick
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they executed the same in
his/her/their authorized capacity(ies). and that by his/her/their signature(s) on the instrument the
person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing
paragraph is true and correct.
WITNESS my hand and official seal.
rnia *
CARLOS RIOS
Notary Public - California x
Sao Mateo County f
Commission * 2292090 "*
-------
h
FOR HOLDER;
By:
(2 \-Jk.
Date: J '"-3'dd~
Name: Bruce Resnick
Title: Treasurer
Address: Syntex Agribusiness, Inc.
Legal Department
1 DNA Way (MS-49)
South San Francisco, CA 94080
ACKNOWLEDGMENT
A notary public or other officer completing this certificate
verifies only the identity of the individual who signed the
document to which this certificate is attached, and not the
truthfulness, accuracy, or validity of that document.
STATE OF CALIFORNIA
COUNTY OF
On this day of , 2022, before me,
personally appeared Bruce Resnick, who pfoved to me on the basis of satisfactory evidence to be
the person whose name is subscribed to the within instrument and acknowledged to me that he
executed the same in his authorized^pacity, and that by his signature on the instrument the person,
or the entity upon behalf of wh\m the person acted, executed the instrument.
I certify under PENALJ^r OF PERJURY under the laws of the State of California that the
foregoing paragraph i^frue and correct.
WITNESS my hmd and official seal.
Signatup/_ (Seal)
11
-------
ACKNOWLEDGMENT
| A notary public or other officer completing this
certificate verifies only the identity of the individual
who signed the document to which this certificate is
attached, and not the truthfulness, accuracy, or
validity of that document.
State of California
County of San Mateo )
0n March 8, 2022 before me Carlos Rios, Notary Public
(insert name and title of the officer)
personally appeared Bruce Ira Resnick ,
who proved to me on the basis of satisfactory evidence to be the person(s) whose name(s) is/are
subscribed to the within instrument and acknowledged to me that he/she/they executed the same in
his/her/their authorized capacity(ies), and that by his/her/their signature(s) on the instrument the
person(s), or the entity upon behalf of which the person(s) acted, executed the instrument.
I certify under PENALTY OF PERJURY under the laws of the State of California that the foregoing
paragraph is true and correct.
WITNESS my hand and official seal.
Signature
(Seal)
1
CAFLOS mos
Notjry Public - California
Sin Mitro County ff
Commission » 22*2
-------
>lame:
Title:
Address
Date:
3-^- 2-oZ2-
John N^j*ffgensmey?
Director, Environmental Remediation Program
Missouri Department of Natural Resources
P.O. Box 176
Jefferson City, MO 65102-0176
STATE OF
COUNTY OF
ACKNOWLEDGMENT
On this^ ~ day of _, 2022, before me, a Notary Public in and for said state,
personally appeared John D. J&rgensmeyer, Director of the Environmental Remediation Program
of the Missouri Department of Natural Resources, a state agency, known to me to be the person
who executed the within Covenant on behalf of said agency by authority of its Director and
acknowledged to me that such person executed the same for the purposes therein stated.
YMtfO
OEBRA D. D0BS0N
Notary Public - Notary Seal
State of Missouri
Commissioned for Morgan County
My Commission Expires: May 25,2022
12
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FOR USEPA
Name:
Title:
Address:
Date:
7/7//2 2_
Scott D. Hayes
Acting Director, Superfund and Emergency Management Division
U.S. EPA, Region 7
11201 Renner Boulevard
Lenexa, Kansas 66219
ACKNOWLEDGMENT
STATE OF )
\ , '
COUNTY OF SjH )
On this li^day of 2022, before me, a Notary Public in and for said state,
personally appeared Scott D. Hayes, Acting Director, Superfund and Emergency Management
Division of the U.S. Environmental Protection Agency - Region VII, a federal agency, known to
me to be the person who executed the within Covenant on behalf of said agency by authority of its
Administrator and acknowledged to me that he executed the same for the purposes therein stated.
Notary Public (J
NOTARY PUBLIC -St*HOl KWMM
MILADY A. PETERS
Mv Appt Empires IQ.'jHy 22U_
13
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EXHIBIT A
PROPERTY DIAGRAM
14
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EXHIBIT B
LEGAL DESCRIPTION
TRACT NO. 1:
PART OF THE SOUTHWEST QUARTER (SW1/4) OF THE NORTHWEST QUARTER
(NW1/4) OF SECTION 17, TOWNSHIP 26, RANGE 26, LAWRENCE COUNTY, MISSOURI,
DESCRIBED AS FOLLOWS: BEGINNING 584 FEET NORTH OF THE SOUTHEAST
CORNER THEREOF, THENCE WEST 82.0 FEET, THENCE NORTH 268.0 FEET, THENCE
EAST 82.0 FEET, THENCE SOUTH 268.0 FEET TO THE POINT OF BEGINNING; AND THE
NORTHEAST QUARTER (NE 1/4) OF THE NORTHWEST QUARTER (NW 1/4) OF
SECTION 17, TOWNSHIP 26, RANGE 26, LAWRENCE COUNTY, MISSOURI, ALL LYING
WEST OF SPRING RIVER AS THE SAME IS NOW LOCATED.
TRACT NO. 2:
THE SOUTHEAST QUARTER (SE 1/4) OF THE NORTHWEST QUARTER (NW 1/4) OF
SECTION 17 AND THE NORTHEAST QUARTER (NE1/4) OF THE SOUTHWEST
QUARTER (SW1/4) OF SECTION 17, ALL IN TOWNSHIP 26, RANGE 26, LAWRENCE
COUNTY, MISSOURI, LYING WEST OF SPRING RIVER AS THE SAME IS NOW
LOCATED.
15
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EXHIBIT C
TRENCH AREA DIAGRAM
16
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APPENDIX G
HYDROLOGY, GEOLOGY, AND HYDROGEOLOGY
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HYDROLOGY, GEOLOGY, AND HYDROGEOLOGY
The Site is in the upper Spring River watershed, which drains an area of approximately 25 square miles
upgradient to the Site. The segment of the Spring River that flows through the Site averages a flow of
approximately 10 cubic feet per second. Due to the presence of springs in the watershed above the Site,
flow is perennial, although very low flow rates are possible during extreme drought. Periods of intense
and/or prolonged precipitation in the area can result in temporary flooding of the East Area of the Site,
although there are engineered structures to limit the effect of flooding on plant operations.
The Site is within the Springfield Plateau physiographic province of the Ozark Plateau physiographic
region. The Springfield Plateau is mainly an undulating to rolling plain. Bedrock is found at varying
depths and consists mostly of limestone with varying amounts of chert. The bedrock is mantled by
unconsolidated surficial deposits of residuum, loess, and alluvium. The East Area of the Site is within
the Spring River floodplain, which features numerous abandoned meanders. One abandoned meander
ran generally from south to north through what is now the center of the manufacturing facility on the
East Area. As the facility expanded since its construction in the 1960s, this channel was diverted, and
the abandoned meander filled. The West Area of the Site is an upland area.
The Site lies within the Springfield Plateau groundwater province, which occupies the southwestern and
central-western part of Missouri. The aquifer system is regionally extensive and underlies most of
southwestern Missouri and extends into bordering states. Regionally, the aquifer system generally slopes
to the northwest. The Springfield Plateau Aquifer is the uppermost aquifer and crops out in the area. It
consists of medium crystalline to coarsely crystalline bedded limestone containing abundant quantities
of gray chert. The Ozark Confining Unit underlies the Springfield Plateau Aquifer and hydraulically
separates this aquifer from the deeper Ozark Aquifer. The Ozark Confining Unit consists of
approximately 10 feet of green-gray silty limestone to a green to brown shale, and 20 ft of cherty light-
gray to greenish-gray limestone having low porosity. The Ozark Aquifer is a confined aquifer, between
1,200 and 1,400 feet thick, that consists of mostly dolomites and limestones. The Ozark Aquifer is
preferentially used as a source of high-quality water by private, municipal, and industrial entities in
southwest Missouri. The St. Francois Confining Unit beneath the Ozark aquifer consists of low
permeability shales and dolomite that hydrologically separate it from the underlying St. Francois
Aquifer.
In the West Area of the Site, the weathered and eroded bedrock units of the Springfield Plateau Aquifer
are mantled by unconsolidated surficial deposits of residuum of varying thickness from about 10- to 67-
feet thick. Beneath the Trench Area, the thickness of the unconsolidated deposits ranges from 42 to 56
feet. The water table is at or near the interface of the bedrock and residuum and generally mimics
topography. Groundwater flow is generally to the east and southeast towards the Spring River.
In the East Area of the Site, unconsolidated deposits from the ground surface downward consist of silt
alluvium, clayey gravel and sand alluvium, and residuum. The thickness of each soil type varies, but
their combined ranges from 11 to 50 feet. This is a result of the highly irregular eroded and non-planar
bedrock surface below. The thinnest deposits are typically found along the western margin of the Spring
River valley where the depth to bedrock ranges from about 10 to 20 feet. Soils generally become thicker
from west to east, away from the uplands and into the Spring River valley. Moving north from the East
Area, the bedrock surface shows a more pronounced slope to the east, with unconsolidated deposits
ranging up to 81 feet in thickness.
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The bedrock underlying soil at the East Area and the North Property is a cherty limestone of the Elsey-
Reeds Spring Formation, part of the Springfield Plateau Aquifer. This limestone is susceptible to
dissolution from acids present in rain water and soil, thus forming an irregular bedrock surface
comprised of pinnacles (bedrock highs) and cutters (bedrock lows).
In the East Area, the potentiometric surface in the shallow unconfined aquifer indicates groundwater
flow in a northward direction with the Spring River valley. In the West Area, groundwater flow
direction generally mimics ground surface topography and is to the east and south towards the Spring
River valley.
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APPENDIX H
COMMUNITY INTERVIEWS
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INTERVIEW RECORD
Site Name: Syntex Facility
EPA ID No.: MOD007452154
Subject: Five-Year Review
Date and Time:
10/6/2021 10:50:20 AM
Type: ^ Telephone Q Visit ~ Other
Location of Visit: N/A
~ Incoming ^ Outgoing
Contact Made By:
Name: Pam Houston / Brian
Zurbuchen
Title: Community Involvement
Coordinator / Remedial Project
Manager
Organization: EPA
Individual Contacted: Information redactedfor privacy
Name:
Title:
Organization:
Telephone No:
Fax No:
E-Mail Address:
Street Address:
City, State, Zip:
Summary Of Conversation
1. Tell us what you know about the Syntex Facility Superfund Site.
What is found on EPA and MoDNR websites.
2. How long have you lived or worked in this community, at this address?
• 12 Years
3. What effects have site operations had on the surrounding community?
• I don't know what you mean by this question. BCP employees won't report to you
about the restricted zones.
4. Do you have any concerns about the site (i.e. health, economic property value,
environment, community/agency involvement, media, future use of the site)?
• All of the above. BCP is not being held responsible for the contamination. EPA is
hands off with BCP. There are hunters on the property and if they are eating the
deer and turkey those should be tested before they are eaten.
5. How close do you live or work to the Syntex Facility Superfund Site?
• Between 0 and .5 miles
6. What is the best way to provide you with information about the site cleanup? (Please
Rank)
Internet;Community Meetings;Fact sheets;Public Notices;News Media;Workshops;
7. How often would you prefer to receive information about the site? (Please Rank)
Monthly Significant Changes ;Quarterly;Weekly;
8. Are you familiar with the site repository for the site?
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It use to be at City Hall
9. What newspapers, newsletters, church bulletins, local websites, or blogs do you read
regularly?
• Monet Times, Springfield Ledger
10. What do you think is the most important environmental problem facing your
community currently?
• The entire Syntex Facility Site. BCP is not being held responsible for the
contamination. Hunters that are eating the deer and the turkey they kill at the site.
Flooding at least one or twice a year.
11. Who do you consider to be leaders in the community?
• No one
12. Who do you consider to be most credible locally when it comes to environmental
issues?
• No one
13. Are you aware of any community concerns regarding the site or its operation and
administration? If so, please explain.
• BCP is not being held responsible for the contamination. EPA is hands off with
BCP.
14. Are you aware of any events, incidents, or activities at the site (i.e. vandalism,
trespassing, emergency responses)? If so, please explain.
• Hunters have been seen on the site and they typically entered on the side by the
Amish.
15. Who should we speak with to learn of any stakeholder concerns about the site?
• I don't know who would be considered experts. This is not a tight knit community.
16. Are you affiliated with any civic organizations? If so, which one(s)?
• No
17. Is there anyone else that you think might be useful for us to talk with about the site?
• No
18. Is there anything else you would like to share about the site?
• I have a few questions for the project manager.
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INTERVIEW RECORD
Site Name: Syntex Facility
EPA ID No.: MOD007452154
Subject: Five-Year Review
Date and Time:
10/7/2021 11:01:31 AM
Type: ^ Telephone Q Visit ~ Other
Location of Visit: N/A
~ Incoming ^ Outgoing
Contact Made By:
Name: Pam Houston / Brian
Zurbuchen
Title: Community Involvement
Coordinator / Remedial Project
Manager
Organization: EPA
Individual Contacted: Information redactedfor privacy
Name:
Title:
Organization:
Telephone No:
Fax No:
E-Mail Address:
Street Address:
City, State, Zip:
Summary Of Conversation
1. Tell us what you know about the Syntex Facility Superfund Site.
They expanded it when the purchased the farm that comes to my fence line which it
didn't before. The flood of May wiped out an 8 foot fence along both sides of the river
when they finally replaced a few weeks ago. I've seen no progress toward the chemical
portion of the site. They keep the ground mowed.
2. How long have you lived or worked in this community, at this address?
• 2011/2013
3. What effects have site operations had on the surrounding community?
• We hear a bit about it. Folks are kind of angry. With EPA and the perception they
didn't do enough.
4. Do you have any concerns about the site (i.e. health, economic property value,
environment, community/agency involvement, media, future use of the site)?
• Major concern is the well water quality. The chemical that has been showing up
does have affect on human health. When we were having problems it thinned my
blood and made me anemic. Two years ago my health has improved quite a bit. I
don't have the same joint problems and my anemia has improved a little bit.
5. How close do you live or work to the Syntex Facility Superfund Site?
• Between 0 and .5 miles
6. What is the best way to provide you with information about the site cleanup? (Please
Rank)
-------
Internet;Community Meetings;Public Notices;Fact sheets;Workshops;News Media;
7. How often would you prefer to receive information about the site? (Please Rank)
Quarterly; Significant Changes ;Monthly ;Weekly;
8. Are you familiar with the site repository for the site?
No
9. What newspapers, newsletters, church bulletins, local websites, or blogs do you read
regularly?
• None of those. My main places of information that I go to the EPA website and the
CDC website. We check our email a few times a day. KY3 is the local news in
Springfield.
10. What do you think is the most important environmental problem facing your
community currently?
• The groundwater quality. That bothers me because it can travel.
11. Who do you consider to be leaders in the community?
• It's not like a normal city although it has a Mayor. It's more county for us not the
city. We can't even vote for the Mayor. We're a mile NW of Verona.
12. Who do you consider to be most credible locally when it comes to environmental
issues?
• That is a tough one. Some of the farmers and ranchers that surround the site. They
are my neighbors. I get a bit of info from them. One of them worked for the facility
at one time. Actually a couple of them. Occasionally they will drop information on
me over the last 9 years.
13. Are you aware of any community concerns regarding the site or its operation and
administration? If so, please explain.
• The site people themselves are very closed lip. BCP was in the news last night. I
don't remember what they said on KY3 last night about it. Department of Labor
fines against BCP safety health violation.
14. Are you aware of any events, incidents, or activities at the site (i.e. vandalism,
trespassing, emergency responses)? If so, please explain.
• No
15. Who should we speak with to learn of any stakeholder concerns about the site?
• I'm at a loss. I'm not to active in the community what little community their is. I do
know a few of the neighbors. The move of the neighbors has been significant. One
neighbor will be closing on his property in November.
16. Are you affiliated with any civic organizations? If so, which one(s)?
• No
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17. Is there anyone else that you think might be useful for us to talk with about the site?
• There are a couple people Junior (Fred) Davis use to own this property. Ralph
McKnight. He lives on the same road just 3 miles west of us. Ralph did work at the
facility. They have attended the public meetings as well.
18. Is there anything else you would like to share about the site?
• I don't think so.
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INTERVIEW RECORD
Site Name: Syntex Facility
EPA ID No.: MOD007452154
Subject: Five-Year Review
Date and Time:
10/29/2021 4:31:54 PM
Type: ^ Telephone ~ Visit Q Other
Location of Visit: N/A
I I Incoming
Outgoing
Contact Made By:
Name: Pam Houston / Brian
Zurbuchen
Title: Community Involvement
Coordinator / Remedial Project
Manager
Organization: EPA
Individual Contacted: Information redactedfor privacy
Name:
Title:
Organization:
Telephone No:
Fax No:
E-Mail Address:
Street Address:
City, State, Zip:
Summary Of Conversation
1. Tell us what you know about the Syntex Facility Superfund Site.
They made Dioxin and its buried and disposed of it but they are monitoring the site for
safety.
2. How long have you lived or worked in this community, at this address?
• 3 or 4 years
3. What effects have site operations had on the surrounding community?
• It has a lot of people afraid of their property values and their health. (Long-term
monitoring) I'm the one that started it all calling the news and you and I've been
happy with the response. Its makes us feel better. I don't have any complaints we
just want to be kept informed. It's been better. The Amish lived here they weren't
going to make a big deal of anything. The monitoring need to be done. I've only
dealt with you.
4. Do you have any concerns about the site (i.e. health, economic property value,
environment, community/agency involvement, media, future use of the site)?
• Every bit of it. The knowledge that people have affects what's going on here. People
would be afraid. I keep all the test results just in case you have to defend yourself
when you try to sell your place. My family hunts and we're unsure if the hunting is
transferrable. There is also a smell but it's from the BCP. You are watching our
well. We bath and brew coffee but we drink bottled water. Everyone seams to be
fine. We haven't had any problem. We feel better you are testing the wells.
5. How close do you live or work to the Syntex Facility Superfund Site?
-------
• Between 0 and .5 miles
6. What is the best way to provide you with information about the site cleanup? (Please
Rank)
Fact sheets;Public Notices;News Media;Internet;Community Meetings;Workshops;
7. How often would you prefer to receive information about the site? (Please Rank)
Significant Changes ;Quarterly;Monthly ;Weekly;
8. Are you familiar with the site repository for the site?
No
9. What newspapers, newsletters, church bulletins, local websites, or blogs do you read
regularly?
• The Monett Times, The Mt Vernon paper
10. What do you think is the most important environmental problem facing your
community currently?
• The dioxin everyone is concerned about it. It's not as much of a concern now that
you are monitoring our well. Any kind of contaminant. There are so many factories
around us. Its on everyone's mind here
11. Who do you consider to be leaders in the community?
• We're a tiny town. We don't have anyone to answer to. It's not like any other place
you are use to dealing with. EPA has more power than anyone to be governing in
Verona.
12. Who do you consider to be most credible locally when it comes to environmental
issues?
• You would hope its the EPA.
13. Are you aware of any community concerns regarding the site or its operation and
administration? If so, please explain.
• Everyone has it in the back of their mind their property and property values and
what can they discover next.
14. Are you aware of any events, incidents, or activities at the site (i.e. vandalism,
trespassing, emergency responses)? If so, please explain.
• Six months ago there was in the middle of the night there were fire trucks at one of
the factories. It scared everyone but I'm not sure which factory it was. Your not
sure what the factories make and all the flood that comes through is another thing.
Anything that was out in that Superfund site washed out with the last flood.
15. Who should we speak with to learn of any stakeholder concerns about the site?
• Just the neighbors the Kooi's that live near by.
16. Are you affiliated with any civic organizations? If so, which one(s)?
-------
• No
17. Is there anyone else that you think might be useful for us to talk with about the site?
• Kooi's live down by the Church farm across the street from the site.
18. Is there anything else you would like to share about the site?
• Were all the barrels removed or are there still some underground.
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INTERVIEW RECORD
Site Name: Syntex Facility
EPA ID No.: MOD007452154
Subject: Five-Year Review
Date and Time:
11/10/2021 2:22:46 PM
Type: ^ Telephone Q Visit ~ Other
Location of Visit: N/A
~ Incoming ^ Outgoing
Contact Made By:
Name: Pam Houston / Brian
Zurbuchen
Title: Community Involvement
Coordinator / Remedial Project
Manager
Organization: EPA
Individual Contacted: Information redactedfor privacy
Name:
Title:
Organization:
Telephone No:
Fax No:
E-Mail Address:
Street Address:
City, State, Zip:
Summary Of Conversation
1. Tell us what you know about the Syntex Facility Superfund Site.
Would like to receive information directly from EPA the city could distribute to the
community. In the 80s there was a effort on the part of gov agency to clean up dioxin
that was a biproduct of a facility in town. The toxins were buried across a wide area.
Some toxins made it to Times Beach and in Mo and the Denny Farm and the barrels are
buried across the way here as well. EPA believes a cap will keep the toxins in tact that
is not a safe way to My father passed away from agent orange so I know a little bit a
bout that I can tell you there is no one here over the age of 40 that wouldn't know what
the dioxin problem is about.
2. How long have you lived or worked in this community, at this address?
• 2017 worked Never lived far from the area since I was 6 years old. Friends &
relatives in the area since I was a kid.
3. What effects have site operations had on the surrounding community?
• There haven't been any site operations since they dismantled the facility. There has
been a lot of testing but not much. Just a lot of concern that it is moderately
neglected
4. Do you have any concerns about the site (i.e. health, economic property value,
environment, community/agency involvement, media, future use of the site)?
• There will be no future use of the site. The site is so badly contaminated. It is
currently housing barrels there permanantly. No one will be using that ever. The
main concern is what happens when those barrels rupture. That is not a permanent
solution to holding the stuff a stones throw from everyone's house.
5. How close do you live or work to the Syntex Facility Superfund Site?
-------
• Between 0 and .5 miles
6. What is the best way to provide you with information about the site cleanup? (Please
Rank)
Community Meetings;Fact sheets;Workshops;News Media;Public Notices;Internet;
7. How often would you prefer to receive information about the site? (Please Rank)
Monthly Significant Changes ;Quarterly;Weekly;
8. Are you familiar with the site repository for the site?
Yes
9. What newspapers, newsletters, church bulletins, local websites, or blogs do you read
regularly?
• Facebook page from the City Government
10. What do you think is the most important environmental problem facing your
community currently?
• Ethylene Oxide and the Dioxin
11. Who do you consider to be leaders in the community?
• The Mayor and the City Council that is who people look to
12. Who do you consider to be most credible locally when it comes to environmental
issues?
• Pam Dorton
13. Are you aware of any community concerns regarding the site or its operation and
administration? If so, please explain.
• Everybody has a concern. We have a dioxin plume that has been in wells and a
trench with something in it and contaminated dirt and air with pollution in it. We
have concerns about the administration of the entire thing
14. Are you aware of any events, incidents, or activities at the site (i.e. vandalism,
trespassing, emergency responses)? If so, please explain.
• On May 17th there was a flash flood and unusual flood event. That was strong
enough to move portable building and wash a car downstream and forced people out
of their home and all of that happened near the area.
15. Who should we speak with to learn of any stakeholder concerns about the site?
• Make sure the council and the Mayor is informed of and the fire chief and county
commissioners and the emergency
16. Are you affiliated with any civic organizations? If so, which one(s)?
• No, work for the city
17. Is there anyone else that you think might be useful for us to talk with about the site?
• Lenard Claude Carr, Peggy Paynter, George Strawn
18. Is there anything else you would like to share about the site?
-------
• I have lived here since I was 6 years old I haven't lived more than 10 miles from
here. My brother worked for a year. My father died of dioxin I'm familiar with it.
He was exposed to Agent Orange.
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