995157
SEVENTH FIVE-YEAR REVIEW REPORT FOR
OAKDALE DUMP SUPERFUND SITE
WASHINGTON COUNTY, MINNESOTA
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Table of Contents
LIST OF ABBREVIATIONS & ACRONYMS 2
I. INTRODUCTION 3
FIVE-YEAR REVIEW SUMMARY FORM 4
II. RESPONSE ACTION SUMMARY 4
Basis for Taking Action 4
Response Actions 5
Status of Implementation 6
Institutional Controls 10
Systems Operations/Operation & Maintenence 13
III. PROGRESS SINCE THE LAST REVIEW 14
IV. FIVE-YEAR REVIEW PROCESS 16
Community Notification, Involvement & Site Interviews 16
Data Review 16
Site Inspection 17
V. TECHNICAL ASSESSMENT 18
QUESTION A: Is the remedy functioning as intended by the decision documents? 18
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? 19
QUESTION C: Has any other information come to light that could call into question the
protectiveness of the remedy? 19
VI. ISSUES/RECOMMENDATIONS 19
OTHER FINDINGS 21
VII. PROTECTIVENESS STATEMENT 21
VIII. NEXT REVIEW 22
APPENDIX A-REFERENCE LIST 23
APPENDIX B-FIGURES 24
APPENDIX C-SITE INSPECTION CHECKLIST 25
APPENDIX D - 2022 ANNUAL VOC GROUNDWATER REPORT TABLES & FIGURES 26
APPENDIX E - FYR NEWSPAPER ADVERTISEMENT 27
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LIST OF ABBREVIATIONS & ACRONYMS
AMRs
Annual Monitoring Reports
CERCLA
Comprehensive Environmental Response, Compensation, and Liability Act
C.F.R.
Code of Federal Regulations
CO
Consent Order
EPA
United States Environmental Protection Agency
FYR
Five-Year Review
ICIAP
Institutional Control Implementation and Assurance Plan
ICs
Institutional Controls
IPE
Isopropyl Ether
MCL
Maximum Contaminant Level
MDH
Minnesota Department of Health
MPCA
Minnesota Pollution Control Agency
NCP
National Oil and Hazardous Substances Pollution Contingency Plan
NPL
National Priorities List
O&M
Operation and Maintenance
OU
Operable Unit
PCB
Polychlorinated Biphenyl
PFAS
Per- and polyfluoroalkyl substances
POTW
Publicly Owned Treatment Works (Municipal Wastewater Treatment Plant)
ppb
Parts per Billion
PRP
Potentially Responsible Party
RAL
Recommended Allowable Limit
RAOs
Remedial Action Objectives
RAP
Remedial Action Plan
ROD
Record of Decision
RPM
Remedial Project Manager
SACO
Settlement Agreement and Consent Order
Site
Oakdale Dump Superfund Site
SVE
Soil Vapor Extraction
UU/UE
Unlimited Use and Unrestricted Exposure
VIC
Voluntary Investigation and Cleanup
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 in order to determine if 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 United States Environmental Protection Agency (EPA) is preparing this FYR pursuant to Section 121
of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), consistent
with the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) (40 C.F.R. Section
300.430(f)(4)(ii)), and considering EPA policy.
This is the seventh FYR for the Oakdale Dump Superfund Site (Site). The triggering action for this
discretionary review is the completion date of the previous FYR. The FYR has been prepared due to the
fact that 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 one operable unit (OU) which is addressed in this FYR.
The Oakdale Dump Superfund Site FYR was led by Andrew Kleist, Remedial Project Manager (RPM),
EPA Region 5. Participants included Rebecca Higgins, Project Hydrogeologist, Minnesota Pollution
Control Agency (MPCA); and Megan Holthaus, Project Manager, MPCA. MPCA and 3M (the potentially
responsible party or PRP) were notified of the initiation of the FYR, and the review began on
10/6/2023.
Site Background
The Site consists of three separate non-contiguous properties (Abresch, Brockman, and Eberle) that
were historically used to dispose of industrial and non-industrial wastes. The Site is located
approximately 11 miles east of downtown St. Paul, Minnesota, in the city of Oakdale, Minnesota. The
approximately 55-acre Abresch property is located north and south of Highway 5 and west of Hadley
Avenue. The approximately 5-acre Brockman property is located southwest of the Abresch property
across Granada Avenue North. The approximately 2-acre Eberle property is located north of the
Abresch property. The three properties compromising the Site are depicted on the map that is Figure 1
in Appendix B. The Site consists of gently rolling landscape within a commercial, residential, and light
industrial area of Oakdale. The Abresch property is the primary focus of this FYR and has ongoing
response activities, specifically groundwater treatment. The Eberle property is a park surrounded by
residential home sites. The Brockman property is in a commercial development. Portions of the Site
contain marsh areas. Raleigh Creek flows through the Abresch property. The land use surrounding the
Site has not changed since the last FYR, although additional development is expected as part of the
Brockman property redevelopment.
The Abresch property was used as a waste burial and drum reclamation site from the mid-1940s until
1961. Scrap materials, plastics, resins and solvents in drums and smaller containers were disposed of in
trenches in upland and wetland areas. Similar disposal methods were used at the Brockman property.
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The Eberle property was used for open burning of combustible materials. Wastes were disposed onto
the ground and ignited.
The Site was placed on the National Priorities List (NPL) on September 8, 1983. The MPCA is the lead
agency managing cleanup of the Site. EPA conducts FYRs for the Site in accordance with a multi-site
deferral agreement between EPA and MPCA.
FIVE-YEAR REVIEW SUMMARY FORM
SITE IDENTIFICATION
Site Name: Oakdale Dump
EPA ID: MND980609515
Region: 5
State: MN
City/County: Oakdale/Washington County
NPL Status: Final
Multiple OUs?
No
Has the site achieved construction completion?
Yes
Lead agency: EPA
Author name (Federal or State Project Manager): Andrew Kleist
Author affiliation: EPA
Review period: 10/6/2023 - 5/21/2024
Date of site inspection: 3/29/2024
Type of review: Discretionary
Review number: 7
Triggering action date: 9/18/2019
Due date (five years after triggering action date): 9/18/2024
II. RESPONSE ACTION SUMMARY
Basis for Taking Action
MPCA began investigating the three properties associated with the Site in 1980, prior to the enactment
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of CERCLA. Although MPCA conducted investigation activities at the Site, a formal CERCLA remedial
investigation and feasibility study (RI/FS) was not conducted. MPCA identified volatile organic
compounds (VOCs) in shallow residential wells in the area adjacent to the Site, including benzene at
concentrations above drinking water standards (6.6 parts per billion or ppb), as well as drums and
smaller containers of VOCs buried at the Site. MPCA also determined that soils at the Site were also
contaminated with isopropyl ether (IPE), acetone, polychlorinated biphenyls (PCBs), and heavy metals.
In July 1983, the Minnesota Department of Health (MDH) issued a health risk assessment for the Site
(MDH, 1983). Though no record of decision (ROD) was issued for the Site, the clean-up remedy was
prescribed in a 1983 Consent Order (CO) between EPA, MPCA, and 3M (EPA, MPCA, and MDH, 1983).
MPCA did not conduct a formal CERCLA RI/FS, nor did it issue a ROD for the Site. Thus, MPCA never
created a specific list of contaminants of concern. However, MPCA did conduct an investigation, and
contaminated soil and source material were removed during the investigation. Also, the MDH human
health risk assessment identified the following remaining exposure concerns:
1) Numerous VOCs and metals were identified in groundwater located on-site, including the
following contaminants in concentrations exceeding applicable drinking water standards at the
time:
a. Chromium
b. Mercury
c. Beryllium
d. Nickel
e. Selenium
f. Benzene
g. 1,2-dichloroethylene
h. 1,2-dichloroethane
i. Dichloromethane
j. Trichloroethylene
2) Migration of contaminated groundwater located on Site to nearby residential drinking water
wells was found to be a significant threat.
3) Although solvent contamination was identified in surface waters on the Site at only trace levels,
MDH recommended that direct contact with these waters be avoided because of the potential
for wide variability in contaminant levels.
4) Although a number of soil contaminants (primarily metals) were identified on the Site, none
were found to be above levels posing a risk through inhalation, ingestion, or crop uptake.
An ecological risk assessment has not been conducted for the Site.
Response Actions
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MPCA removed some contaminated soil and source materials during the initial investigation of the Site
beginning in 1980. After this initial investigation by MPCA, 3M conducted more thorough
hydrogeologic investigations at the Site, resulting in recommendations that a plan be developed for the
selective removal of wastes from the Abresch and Brockman portions of the Site, the multi-aquifer
wells be properly abandoned, and a monitoring well network be established for a groundwater
monitoring program.
As part of the 1983 CO, the parties developed a Remedial Action Plan (RAP) (3M, 1983) for the Site.
Though the RAP did not specifically identify remedial action objectives (RAOs) by name, it did identify
the following as the purpose for the RAP:
• to further define the extent and location of wastes on the Site;
• to delineate procedures for implementing the selective removal of waste;
• to develop disposal options;
• to carry out a monitoring program while the work is underway;
• to implement a system to control contaminated groundwater; and
• to define a long-term monitoring system to ascertain if all contaminants have been removed or
confined to the Site.
The RAP included the following components of the remedy:
• Reconstruction (as a monitoring well) or abandonment of the multi-aquifer wells near the Site;
• Reconstruction (as a monitoring well) or abandonment of any other drinking water wells
impacted by the Site:
• Removal of all containers and barrels of hazardous waste that were identified through the
geophysical survey;
• Removal and/or treatment of heavily contaminated soils in the Abresch and Brockman
properties;
• Construction and operation of a shallow groundwater pump-out system to contain
contaminated groundwater, with discharge to the municipal wastewater treatment system or
Publicly Owned Treatment Works (POTW); and
• Establishment of a long-term monitoring well network that will detect changes in groundwater
quality at the Site.
Status of Implementation
3M implemented all components of the RAP with MPCA oversight, including the following:
• Identified areas of concentrated wastes at the Abresch and Brockman properties were removed
and disposed of off-site in 1983 and 1984.
• A total of 39 privately owned water supply wells were sealed in 1984 to eliminate multi-aquifer
migration pathways.
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• A shallow groundwater extraction system was constructed in 1984 and continues to operate on
the Site (Abresch Property) and has since functioned as designed.
Per- and polyfluoroalkyl substances (PFAS) were identified in soil and groundwater at the Site in 2004.
3M conducted an investigation of the extent and magnitude of the PFAS impacts. 3M signed a
Settlement Agreement and Consent Order (SACO) in 2007 with MPCA to address the PFAS
contamination at the Site (MPCA, 2007). 3M's response to PFAS contamination has included the
installation of additional pump-out wells and the installation of an activated carbon pre-treatment
system. These PFAS response activities have likely resulted in an increased rate of removal of VOCs
from the groundwater. EPA is not a party to that agreement.
In 2010, 3M and MPCA agreed to a comprehensive groundwater monitoring/sampling plan (3M, 2010)
for both VOCs and PFAS. Based on previous data, the 2010 sampling plan requires 3M to monitor for
the following VOCs in groundwater:
• Acetone
• Benzene
• 1,1-Dichloroethane
• 1,2-Dichloroethane
• 1,1-Dichloroethene
• cis-l,2-Dichloroethene
• trans-l,2-Dichloroethene
• Ethylbenzene
• Isopropyl ether
• Methyl ethyl ketone
• Tetrahydrofuran
• Isopropyl alcohol (2-Propanol)
• 2-Butyl alcohol
• Methyl isobutyl alcohol
• Methylene chloride
• Methyl isobutyl ketone
• Toluene
In 2017, 3M conducted vapor sampling at the Site and submitted a Vapor Sampling Summary Report
(3M, 2017). The sampling conducted as part of this study found that not only did none of the soil vapor
samples exceed Minnesota's default sub-slab action levels (the indoor air screening values with a 33
times sub-slab to indoor air attenuation factor), but only two soil vapor samples exceeded Minnesota's
actual indoor air screening values without any attenuation factor. Despite these results, 3M voluntarily
installed an SVE system at the northern portion of the Abresch property to ensure that soil vapors
would not pose a threat in the future.
In April 2023, the City of Oakdale announced plans to construct a new public works facility at the
Brockman site, excavation began at the site in early 2024. Building construction is planned to begin late
summer of 2024. This plan was preempted by 2019 and 2020 investigation work completed by 3M to
identify remaining contamination and determine the best path to remediate the property prior to the
City of Oakdale redevelopment. The 2019 and 2020 investigations included geophysical survey using
electromagnetic metal detection to further delineate remaining buried metal debris, 13 test trenches
to characterize nature and extent of the fill materials, 36 push-probe soil borings during supplemental
investigation, geotechnical investigation, vapor investigation, and soil vapor extraction (SVE) trench
installation. 3M is donating this property to the city.
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Also, during the last few years, 3M has begun work on a plan to divert Raleigh Creek around the
Abresch property in an effort to reduce PFAS impacts for Site's surface water outfall. The goal of this
plan is to have less water coming onto and leaving the Site. The Raleigh Creek diversion project will not
be discussed further in this FYR as its objectives are not part of a CERCLA action at the Site, and the
PFAS impacts are covered under the 2007 SACO signed with MPCA.
In 2023, as part of the Brockman redevelopment project referenced in the Site Background section,
both parties, 3M and the City of Oakdale, developed RAPs for the project. Both RAPs were approved by
the MPCA Voluntary Investigation and Cleanup (VIC) Program as well as the MPCA Superfund Staff
managing the Site.
• 3M's RAP (3M, 2023) pertains to waste excavation, screening, monitoring and site preparation
for the new public works building. The 3M RAP also includes long-term Site-related monitoring
wells being installed onsite.
• The City of Oakdale's RAP (City of Oakdale, 2023) includes building-related response actions for
a sub-slab depressurization system as well as institutional controls (ICs) to prevent future
disturbance of paved surfaces, ponds, etc.
Since 1985, the extraction system has removed an estimated volume of 42,258 gallons (~141 tons) of
VOCs and has pumped an estimated volume of 638 million gallons of groundwater during that time, as
documented in the 2022 Annual VOC Groundwater Monitoring Report (Weston, December, 2023). This
report is available for review on EPA's website for the Site (http://www.epa.gov/superfund/oakdale-
dump). Data in this report also shows that the groundwater extraction system continues to control the
horizontal and vertical migration of VOC impacted groundwater. Specifically, since 1985, groundwater
elevations have demonstrated cones of depression from pump-out wells throughout the Site
(horizontal containment), and groundwater levels in the shallow and basal alluvium monitoring wells
have maintained lower elevations than groundwater elevations in the underlying Platteville bedrock
formation (vertical containment). In general, total VOC concentrations in Site monitoring wells have
shown decreasing trends over time as shown by the data included in the report. However,
groundwater contamination exists on-site above EPA's Primary Drinking Water Standards. See Data
Review for additional information.
The current network of groundwater extraction wells consists of twenty pumping wells (PW-1, PW-3,
PW-4, PW-6, PW-10, PW-11, and PW-14 through PW-26). Originally, eleven wells extracted
groundwater. Three of the wells were converted to monitoring wells (PW-7, PW-8 and PW-9 in 2003)
and one (PW-5) was sealed based on data gathered during the first ~15 years of operation. An
additional 13 groundwater extraction wells (PW-14 through PW-26) were installed in 2008 and 2011 as
part of the remedial action for PFAS being conducted under the 2007 SACO.
The results of VOC investigations conducted after the 1983 CO was issued determined that no
response actions were necessary at the Eberle property. VOC investigations and follow-up actions have
been completed for the Brockman property based on information presented in previous FYRs. The
response actions that continue on the Abresch property are the primary focus of this FYR.
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As mentioned above, no response actions have been found to be necessary at the Eberle property to
date, however, MPCA has requested that 3M complete additional sampling to further define the
extent and magnitude of contamination at all three properties, including Eberle. Response actions have
been completed at the Brockman property, and additional actions to prepare the property for
redevelopment are being taken currently. Response actions have been implemented and are
continuing at the Abresch property.
At the time of the site visit (3/29/2024) for this FYR the excavation work on the Brockman parcel was
underway, and nearly complete. The project began in February 2024, and 3M excavated approximately
50,000 tons of soil. The non-hazardous soil was taken to SKB Environmental Landfill, and the hazardous
soil (PCBs) was handled by Clean Harbors. 3M also completed PFAS sampling of the excavation area
during this project. A completion report from the Brockman redevelopment excavation was not
available during the time this FYR was being developed.
Institutional Controls
A summary of the implemented and planned ICs for the Site is listed in Table 1 and are further
discussed below.
Table 1: Summary o
: Planned and/or Implemented ICs
Media,
engineered
controls, and
areas that do not
support UU/UE
based on current
conditions
ICs
Needed
ICs Called
for in the
Decision
Documents
Impacted
Parcel(s)
IC
Objective
Title of IC Instrument
Implemented and Date (or
planned)
Groundwater
Yes
No
Abresch
portion of
Site.
Restrict
construction,
maintenance,
sealing, or
disturbance of
groundwater
wells without
prior approval
by MDH.
Implemented: On August 9,
2021, an environmental
restrictive covenant from
3M was recorded at the
Washington County
Recorder's Office.
Implemented: Washington
County Special Well
Construction Area was
established pursuant to MN.
Rules Part 4725.3650 MN.
Stat. Section 1031.236
requires sellers to disclose
special well construction
areas. (March 8, 2007)
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In Progress: MPCA is
reviewing a draft
environmental restrictive
covenant from 3M
Restrict
(planned).
construction,
Brockman
maintenance,
Implemented: Washington
Groundwater
Yes
No
portion of
Site.
sealing, or
disturbance of
groundwater
wells.
County Special Well
Construction Area was
established pursuant to MN.
Rules Part 4725.3650, MN.
Stat. Section 1031.236
requires sellers to disclose
special well construction
areas. (March 8, 2007)
Limit the
future use of
the Abresch
Property to
commercial or
Implemented: On August 9,
Soil
Yes
No
Abresch
portion of
Site.
industrial.
2021, an environmental
restrictive covenant from
Prohibit
3M was recorded at the
construction,
excavation, or
placement of
any structure
or any other
item.
Washington County
Recorder's Office.
Limit the
future use of
the Brockman
Property to
Brockman
commercial or
industrial.
In Progress: MPCA is
reviewing a draft
Soil
Yes
No
portion of
Site.
Prohibit
construction,
excavation, or
placement of
any structure
or any other
item.
environmental restrictive
covenant from 3M
(planned).
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A map depicting current conditions of the Site that do not allow for UU/UE has not been developed.
EPA recommends that a clearer map depicting current conditions of the Site and areas that do not
allow for UU/UE be developed in the IC Follow-up Actions discussed below. A current map showing the
area in which the ICs of the approved Environmental Restrictive Covenant for the Abresch property
apply, as well as a parcel list, is included in Appendix B.
Status of Access Restrictions and ICs:
The portion of the Abresch property south of Highway 7 is fenced. The area of the Abresch property
north of Highway 7 which contains the SVE system is also fenced. A portion of the Brockman property
is under commercial reuse. The remaining vacant portions of the Brockman property are currently
owned by 3M, but the property is to be transferred to the City of Oakdale upon completion of
excavation work currently taking place. There is a fence restricting access to the portion of the
Brockman property where work is actively taking place. The Eberle property is currently a city park and
never required access restrictions.
As mentioned above, a ROD was never issued for the Site. Instead, EPA, MPCA, and 3M entered into a
CO in 1983 that prescribed the required response actions to be implemented. The 1983 CO did not
include detailed requirements concerning ICs. However, groundwater contamination exists on-site
above levels allowing for UU/UE, and portions of the Site have only been cleaned up to industrial or
commercial levels. Therefore, a decision document is needed to document the requirement for ICs as
part of the Site remedy.
The groundwater at the Abresch Property is still above levels allowing for UU/UE and all groundwater
use is prohibited at this portion of the Site until cleanup levels are reached. ICs in the form of a
restrictive covenant are in place to limit the future use of the Abresch Property to commercial or
industrial activities because of the soil cleanup levels achieved. Similarly, planned ICs in the form of a
restrictive covenant will limit the future use of the Brockman Property to light industrial use. The ICs
specific to the Brockman Property have been developed as part of the redevelopment project and
currently are being reviewed. Once the covenant is approved and filed with Washington County, the
Brockman property will be transferred to the City of Oakdale. MPCA notified the surrounding
community of the contaminated groundwater and need for limited exposure at the Site by connecting
residences to city water supplies. In March 2007, MDH issued a Special Well Construction Area notice
that prohibits nearby residents from constructing, maintaining, sealing, or disturbing drinking water
wells without prior approval by MDH. In addition, Washington County has issued rules to limit
installation of new drinking water wells and requires notification of these restrictions be
communicated with property transfers. These implemented ICs apply to both the Abresch and
Brockman portions of the Site. Previous investigation has shown that no ICs are needed at the Eberle
Property because it already met UU/UE standards.
The response action performance standards for groundwater are the Safe Drinking Water Act MCLs for
public water supplies and the MDH Recommended Allowable Limits (RALs) for contaminants of
concern. Once those levels are met, the Abresch property is expected to attain UU/UE standards for
groundwater and the ICs for groundwater will no longer be needed, though property usage restrictions
would still apply based on the soil cleanup levels achieved, which are not at UU/UE levels.
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Although all needed ICs have not yet been implemented, based on the FYR site inspection and
interviews, EPA is not aware of any uses of the Site or contaminated media which are inconsistent with
the objectives to be achieved by the planned ICs or ICs already in place.
MPCA is responsible for periodic inspections and oversight over 3M's operation and maintenance
(O&M) activities, including IC maintenance and monitoring.
IC Follow up Actions Needed:
EPA recommends that 3M update the O&M Plan to more specifically document long-term stewardship
procedures in one place, including those for ICs. Long-term stewardship procedures for ICs should
describe at a minimum: (1) monitoring activities and schedules; (2) responsibilities for performing each
task; (3) reporting requirements; and (4) a process for addressing any potential IC issues that may arise
during the reporting period. With MPCA oversight, 3M will review the existing portions of an O&M plan
which are currently contained within multiple different documents and revise into a singular O&M
Plan, to ensure long-term stewardship procedures are in place. The O&M Plan will include regular
reviews of ICs at the Site and annual certifications to MPCA that ICs are in-place and effective.
Additionally, use of a communications plan and use of a one-call system should be explored as part of
O&M activities at the Site.
EPA recommends that an Institutional Control Implementation and Assurance Plan (ICIAP) be
developed to evaluate ICs implemented and identify any additional ICs needed, include a complete ICs
map for the Site which depicts current conditions that do not allow for UU/UE, and identify long-term
stewardship procedures.
Also, a decision document is needed to document the requirement for ICs as part of the Site remedy.
As noted earlier, MPCA is currently reviewing the draft Environmental Restrictive Covenant for the
Brockman property and it needs to be finalized and recorded at the Washington County Recorder's
Office.
Systems Operations/Operation & Maintenance
3M continues to operate a groundwater extraction system at the Abresch property to prevent
groundwater contamination from migrating beyond the Site. As part of this remedy implementation,
3M conducts quarterly and semi-annual groundwater monitoring as well as depth to water
measurements in monitoring wells at the Abresch property.
3M conducts ongoing O&M of the groundwater extraction system. Maintenance is performed to
reduce the amounts of biological growth and particulate matter that accumulate in the wells before
flow is restricted. Containment system maintenance includes: 1) cleaning, repairing, or replacing
pumps and flow meters, 2) chemical well treatment, and 3) cleaning discharge lines. The system is
inspected by 3M or its consultant to monitor and maintain the groundwater extraction system.
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No substantial issues with operational practices were identified during this reporting period. As
mentioned in the IC Section above, 3M intends to review the existing portions of an O&M plan which
are currently contained within multiple different documents and revise into a singular O&M Plan, so
that necessary O&M procedures for the Site are documented in one place. EPA agrees with this
planned step that a comprehensive Site O&M Plan be developed.
III. PROGRESS SINCE THE LAST REVIEW
This section includes the protectiveness determinations and statements from the last FYR as well as
the recommendations from the last FYR and the current status of those recommendations.
Table 2: Protectiveness Determinations/Statements from the 2019 FYR
ou#
Protectiveness
Determination
Protectiveness Statement
OUl/Sitewide
Short-term
Protective
The remedy at the Oakdale Dump Site currently protects human
health and the environment because exposure pathways to soil and
groundwater at the Site are being controlled. Source areas of soil
contamination have been removed, and groundwater is controlled by
the groundwater extraction system and by the abandonment of
impacted wells. However, in order for the remedy to be protective in
the long-term, the following actions need to be taken to ensure
protectiveness:
-ICs implemented at the site that adequately restrict use/activity;
-a requirement to continue monitoring the groundwater treatment
system should be established in a new legal document or a
modification of the 1983 CO;
-a decision document should be issued requiring ICs as part of the
remedy; and
-the O&M Plan should be amended to document long-term
stewardship procedures.
Table 3: Status of Recommendations from the 2019 FYR
OU#
Issue
Recommendations
Current Status
Current
Implementation
Status Description
Completion Date
(if applicable)
OUl/Site-
wide
Institutional
controls are
not currently in
place for the
Site.
Institutional
controls should be
implemented.
Ongoing
An Environmental
Restrictive Covenant
was approved/
implemented for the
Abresch portion on
8/9/2021.
An Environmental
Restrictive Covenant
for the Brockman
NA
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portion is under
review.
OUl/Site-
1983 CO
A requirement to
Ongoing
Discussions have
NA
wide
requires
continue
been had about
monitoring of
monitoring the
addressing this
the
groundwater
issue. Determining a
groundwater
treatment system
best approach is
treatment
should be
being considered.
system for 30
established in a
years.
new legal
document or a
modification of the
1983 CO.
OUl/Site-
The 1983 CO
A decision
Ongoing
ICs are being
NA
wide
did not include
document should
approved and
specific ICs as a
be issued requiring
implemented, but a
component of
ICs as part of the
decision document
the remedy.
remedy.
to require them as
part of the remedy
hasn't been
completed.
OUl/Site-
Procedures are
Amend the O&M
Ongoing
Discussions have
NA
wide
not in place to
Plan to document
been had about
ensure long-
long-term
combining this
term
stewardship
information into one
stewardship of
procedures. Long-
consolidated section
ICs at the Site.
term stewardship
of the O&M Plan in
procedures should
the future. EPA
describe at a
recommends that an
minimum: (1)
ICIAP also be
monitoring
developed to
activities and
capture this
schedules; (2)
information in one
responsibilities for
plan for IC related
performing each
information.
task; (3) reporting
requirements; and
(4)a process for
addressing any
potential IC issues
that may arise
during the
reporting period.
In the Other Findings section of the 2019 FYR the following recommendation was also made:
15
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- Upon implementation of appropriate ICs, as per the 2007 SACO between 3M and MPCA, EPA
and MPCA may consider partial deletion of the Brockman and Eberle portions of the Site from
the NPL.
This recommendation is ongoing and is still being considered. The discussion was recently renewed
related to the Brockman property redevelopment.
IV. FIVE-YEAR REVIEW PROCESS
Community Notification. Involvement & Site Interviews
A public notice was made available by a banner posting on the MinnPost website on 1/23/24, and
running for one week, stating that there was a FYR underway and inviting the public to submit any
comments to EPA. Appendix E contains the banner posting. No comments have been received. The
results of the review and the report will be made available at the Site information repository at MPCA
headquarters located at 520 Lafayette Road North in St. Paul, Minnesota 55155-4194 and online on the
Oakdale Dump website at: http://www.epa.gov/superfund/oakdale-dump
Data Review
EPA reviewed the 2018, 2019, 2020, 2021, and 2022 VOC Groundwater Annual Monitoring Reports
(AMRs) for the Site for this FYR. These reports are available for review on EPA's website for the Site
(http://www.epa.gov/superfund/oakdale-dump). The 2023 VOC AMR was not available for review
while this FYR was being developed.
The 2018-2022 VOC AMRs demonstrate that the groundwater treatment system continues to remove
VOCs from groundwater, though at a decreasing rate. The groundwater treatment system initially
removed VOC concentrations at the highest rates after its startup in 1985. Around 1992, the rate of
VOC removal began to occur at a decreasing rate. This was to be expected because VOC concentrations
in the groundwater decrease while the rate of groundwater removal remains consistent. Figure 4-1 of
Appendix D is a graphical representation of the rates of VOC removal and groundwater removal as a
function of time.
According to the data tables in Appendix D, some VOCs in groundwater remain above drinking water
standards. For example, benzene was found to be as high as 836 ppb during the October 2022
sampling event, compared to its federal drinking water standard (maximum contamination level or
MCL) of 5 ppb. Generally, groundwater contamination has decreased over time at the Site, and this
continues to be true during this FYR period. The pumping system continues to remove VOCs from the
groundwater, however, at a declining rate compared to when the system was turned on. Tables 3-2
through 3-6 in Appendix D are the results of VOC sampling at the extraction and monitoring wells on
the Site.
The data in the 2018-2022 VOC AMRs demonstrate that the hydraulic control exhibited by the
treatment system is effective and consistent. Figures 3-5 through 3-8 o22f Appendix D are contour
16
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maps of the alluvial (upper) aquifer and demonstrate the horizontally gradient control exhibited by the
pumping action of the extraction wells. Figure 3-4 of Appendix D is a graphical representation of the
hydraulic head pressures exhibited by wells in the lower alluvial wells (lower portion of the upper
aquifer) compared to the hydraulic head pressures exhibited by wells in the Platteville formation
(lower aquifer). The lower hydraulic head pressures in the wells in the lower alluvial aquifer compared
to those of the wells in the Platteville formation results in an upward vertical gradient. The overall
resulting effect is that groundwater contamination is contained to the Site. Analytical data from
sentinel wells support this conclusion.
The 2018, 2019, 2020, 2021, and 2022 SVE System Annual Reports for the Former Oakdale Disposal
Site were also reviewed for this FYR. These reports are available for review on EPA's website for the
Site (http://www.epa.gov/superfund/oakdale-dump). The 2023 SVE System Annual Report was not
available for review while this report was being developed.
From April 2019 through June 2020 a consistent and decreasing trend of VOC removal per month was
identified in the SVE system. The 2018 SVE report identifies that the Oakdale SVE treatment system
removed 17,376 pounds of VOCs in approximately nine months of operation. In the 2019 report the
treatment system removed 8,400 pounds of VOCs over the course of the entire year, the downward
trend in total VOCs removed was thought to indicate that diminishing subsurface vapor concentrations
were present. During 2020 the contractor conducted rebound testing due to the decreasing trend of
monthly VOC removal, the system was shut down twice, in August and October. The August shut down
lasted approximately two weeks while the October shut down lasted approximately one month.
Sampling following the second shutdown showed sustained elevated VOC concentrations above pre-
shutdown levels, though still well below the concentrations sampled prior to the installation of the SVE
system. The SVE system ran throughout 2021 and 2022 without any planned shutdowns for rebound
testing due to the lack of a decreasing trend in monthly VOC concentrations. Based on data review, the
SVE system appears to be working effectively and removing VOC concentrations from the subsurface.
Site Inspection
The inspection of the Site was conducted on 3/29/2024. In attendance were Andrew Kleist, RPM, EPA;
Rebecca Higgins, Project Hydrogeologist, MPCA; and Kevin Madson, Environmental Engineer, 3M. The
purpose of the inspection was to assess the protectiveness of the remedy. Appendix C contains the Site
Inspection Checklist.
The Brockman portion of the Site was an active work site during the time of site inspection. Excavation
and off-site disposal had recently been completed and the site was secured with temporary fencing.
3M was preparing to complete re-grading of the site pending excavation sample results.
The monitoring wells, extraction wells, piezometers, and fencing on the Abresch portion of the Site
were observed to be in good condition. The groundwater treatment facility appeared to be well
maintained and was functioning in general accordance with the operations plan based on discussions
with Mr. Madson of 3M.
17
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The SVE system installed in the northern portion of the Abresch property was observed to be well
maintained and in good condition.
No issues were noted during the inspection.
V. TECHNICAL ASSESSMENT
QUESTION A: Is the remedy functioning as intended by the decision documents?
Question A Summary:
Yes, the remedy is functioning as intended. The remedy set forth in the 1983 CO required removal of
concentrated areas of waste, sealing of multi-aquifer wells, operation of a groundwater containment
and extraction system, and development of a groundwater monitoring network. Response actions
included the following:
• Identified areas of concentrated wastes were removed and disposed of off-site in 1983 and
1984.
• A total of 39 privately owned water supply wells were sealed in 1984 to eliminate multi-
aquifer migration pathways.
• A shallow groundwater extraction system constructed in 1984 continues to operate on the
Site and is functioning as designed. Data reviewed for this FYR as discussed in the Data Review
Section indicates that the extraction system is controlling the horizontal and vertical movement
of VOCs in the affected aquifers. The overall resulting effect is that groundwater contamination
is contained to the Site. Analytical data from sentinel wells support this conclusion. The
concentration of VOCs in the extracted groundwater continues to show a downward trend.
No substantial issues with operational practices were identified during this review period. System
maintenance is performed regularly, and operational issues have been addressed promptly. Fencing is
in place surrounding the active extraction well area of the southern part of the Abresch property, as
well as around the SVE system in the northern part of the Abresch property.
ICs have not been fully implemented, but some ICs are in place. ICs need to be developed to restrict
land use and protect site infrastructure at the Brockman Property. Although not all ICs have been
implemented, there are currently no known uses of the Site which would be considered inconsistent
with the objectives to be achieved by the ICs. EPA has identified recommendations to ensure that ICs
are effectively implemented and documented at the Site, including issuing a decision document to
document ICs as part of the site remedy, developing a comprehensive O&M Plan that consolidates all
necessary procedures—including long-term stewardship for IC maintenance and monitoring—into a
single document, and developing an ICIAP.
The RAP attached to the 1983 CO requires that 3M continuously operate the groundwater monitoring
system associated with the groundwater extraction system "for thirty years unless it can be
demonstrated to the satisfaction of the MPCA Commissioner and U.S. EPA with the monitoring well
data that the sites no longer significantly impacts the area ground water and surface water." The RAP
18
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further states, "An annual review will be conducted by representatives of the MPCA, EPA, and 3M to
determine the effectiveness of the pump out system and the need for continued operation of the
system." In 2015, the groundwater monitoring system had been operated for thirty years.
Concentrations of several VOCs continue to exceed their respective drinking water standards in 2017.
Cessation of the groundwater monitoring system does not appear warranted at this time based on
available information relative to the requirements of the 1983 CO. Therefore, a requirement to
continue monitoring the groundwater extraction system should be established in a new legal
document or a modification of the 1983 CO.
A comprehensive sampling and monitoring plan was agreed to by MPCA and 3M on October 10, 2010,
which documents the sampling and monitoring requirements for the Site into the future. This sampling
and monitoring requirement was specified as part of the 2007 MPCA SACO.
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:
The intent of the remedy is to address VOC contamination through groundwater containment, not
aquifer restoration. The purposes of the RAP under the 1983 CO that serve as RAOs will remain valid
because additional receptors to VOC-contaminated groundwater have not been identified at or
downgradient of the Site. The concentration of VOCs in groundwater has continued to generally
decline during the past five years.
During the previous FYR period, a potential vapor exposure pathway was investigated at the northern
part of the Abresch portion of the Site. The soil vapor sampling conducted as part of the vapor study
found that none of the soil vapor samples exceed Minnesota's default sub-slab action level (the indoor
air screening values with a 33 times sub-slab to indoor air attenuation factor), also, only two soil vapor
samples exceeded Minnesota's actual indoor air screening value without any attenuation factor.
Despite these results, 3M voluntarily installed an SVE system at the northern portion of the Abresch
property. Also, a fence surrounding the SVE system on the north part of the Abresch property was
installed.
As previously mentioned, PFAS-related activities which are present at the Site are not a part of the
CERCLA action at the Site and are not evaluated in this FYR. 3M's response to PFAS contamination has
included the installation of additional pump-out wells and the installation of an activated carbon pre-
treatment system. PFAS-related activities were conducted under the 2007 SACO, which EPA is not a
party to that agreement.
QUESTION C: Has any other information come to light that could call into question the protectiveness
of the remedy?
No. There have been no natural disasters and/or climate change issues impacting the Site or the
protectiveness of the remedy.
19
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VI. ISSUES/RECOMMENDATIONS
Issues and Recommendations Identified in the Five-Year Review:
OU(s):
OUl/Site-wide
Issue Category: Institutional Controls
Issue: Institutional controls are not currently in place for the Site.
Recommendation: Institutional controls should be implemented.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA/State
9/18/2025
OU(s):
OUl/Site-wide
Issue Category: Institutional Controls
Issue: The 1983 CO did not include specific ICs as a component of the
remedy.
Recommendation: A decision document should be issued requiring ICs as
part of the remedy.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
EPA/State
EPA/State
9/18/2028
OU(s):
OUl/Site-wide
Issue Category: Remedy Performance
Issue: 1983 CO requires monitoring of the groundwater treatment system
for 30 years.
Recommendation: A requirement to continue monitoring the
groundwater treatment system should be established in a new legal
document or a modification of the 1983 CO.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
EPA/State
EPA/State
9/18/2028
20
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OU(s):
Issue Category: Institutional Controls
OUl/Site-wide
Issue: Procedures are not in place to ensure long-term stewardship of ICs
at the Site. There are site ICs currently in place, while others are still being
developed. A comprehensive document is needed to capture this
information in one place.
Recommendation: A comprehensive ICIAP for the Site should be
developed to evaluate ICs implemented and identify any additional ICs
needed, include a complete ICs map for the Site which depicts current
conditions that do not allow for UU/UE, and identify long-term
stewardship procedures.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA/State
9/18/2028
OU(s):
OUl/Site-wide
Issue Category: Operations and Maintenance
Issue: A consolidated O&M Plan does not exist for the site at this time.
Currently, there are components of an O&M Plan contained within
multiple different site documents.
Recommendation: A comprehensive Site O&M Plan should be developed
documenting all necessary O&M procedures for the site in one place. This
plan should detail monitoring of the groundwater treatment system.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party
Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA/State
9/18/2026
OTHER FINDINGS
In addition, the following are recommendations that were identified during the FYR and may improve
management of O&M and promote beneficial reuse of the Site, but do not affect current nor future
protect iveness:
• There have been preliminary discussions between 3M and the City of Oakdale about pursuing
a partial deletion of the Brockman portion of the Site once the property transfer is complete.
No formal discussions with EPA have taken place about this possibility, or what the process
would entail.
21
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VII. PROTECTIVENESS STATEMENT
OU 1 & Sitewide Protectiveness Statement
Protectiveness Determination:
Short-term Protective
Protectiveness Statement: The remedy at the Oakdale Dump Site currently protects human
health and the environment because exposure pathways to soil and groundwater at the Site
are being controlled. Source areas of soil contamination have been removed, and groundwater
is controlled by the groundwater extraction system and by the abandonment of impacted
wells. However, in order for the remedy to be protective in the long-term, the following actions
need to be taken to ensure protectiveness:
-institutional controls should be implemented.
-a decision document should be issued requiring ICs as part of the remedy.
-a requirement to continue monitoring the groundwater treatment system should be
established in a new legal document or a modification of the 1983 CO.
-EPA recommends that an ICIAP be developed to capture long-term stewardship of ICs in one
document.; and
-EPA recommends that an O&M Plan be developed.
VIII. NEXT REVIEW
The next FYR report for the Oakdale Dump Superfund Site is required five years from the completion
date of this review.
22
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APPENDIX A - REFERENCE LIST
1) 1983 Consent Order between EPA, MPCA, and 3M.
2) 1983 Health Risk Assessment of Groundwater and Soil Contamination - Oakdale Disposal Sites
prepared by MDH.
3) 1983 Remedial Action Plan prepared by 3M.
4) 2007 Settlement Agreement and Consent Order between MPCA and 3M (for PFAS).
5) 2010 Groundwater Monitoring Plan prepared by Weston on behalf of 3M.
6) 2017 Vapor Sampling Summary Report prepared by Arcadis on behalf of 3M
7) 2018 Annual VOC Groundwater Monitoring Report for the Oakdale Site prepared by Weston on
behalf of 3M.
8) 2018 Soil Vapor Extraction System Annual Report for the Oakdale Site prepared by Arcadis on
behalf of 3M.
9) 2019 Annual VOC Groundwater Monitoring Report for the Oakdale Site prepared by Weston on
behalf of 3M.
10) 2019 Soil Vapor Extraction System Annual Report for the Oakdale Site prepared by Arcadis on
behalf of 3M.
11) 2019 FYR for the Oakdale Dump Site prepared by EPA.
12) 2020 Annual VOC Groundwater Monitoring Report for the Oakdale Site prepared by Weston on
behalf of 3M.
13) 2020 Soil Vapor Extraction System Annual Report for the Oakdale Site prepared by Arcadis on
behalf of 3M.
14) 2021 Annual VOC Groundwater Monitoring Report for the Oakdale Site prepared by Weston on
behalf of 3M.
15)2021 Environmental Restrictive Covenant - Abresch Property
16) 2021 Soil Vapor Extraction System Annual Report for the Oakdale Site prepared by Arcadis on
behalf of 3M.
17) 2022 Annual VOC Groundwater Monitoring Report for the Oakdale Site prepared by Weston on
behalf of 3M.
18) 2022 Soil Vapor Extraction System Annual Report for the Oakdale Site prepared by Arcadis on
behalf of 3M.
19) 2023 Remedial Action Plan - Brockman Redevelopment prepared by 3M.
20) 2023 Remedial Action Plan - Brockman Redevelopment prepared by City of Oakdale.
23
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APPENDIX B-FIGURES
24
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Attachment 2
Parcel Information and Legal Description
Parcel Identification
Number
(on Attachment 1)
Parcel Number
Title Type
Class
Legal Description
Acres
1
18.029.21.43.0010
Torrens
C&l
LOTS 19 THRU 26, BLOCK 2, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND VACATED NORTHWOOD AVE AND ALSO VACATED ALLEY ACCRUING
TO SAID LOTS. Block 2 Lot 19 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 20 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2
Lot 21 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 22 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 23 SubdivisionCd
57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 24 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 25 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 26 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
1.449
2
18.029.21.43.0009
Abstract
C&l
LOTS 15 THRU 18, BLOCK 2, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND VACATED ALLEY ACCRUING TO SAID LOTS. Block 2 Lot 15
SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 16 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 17 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 18 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.781
3
18.029.21.43.0007
Abstract
C&l
LOTS 9 THRU 13, BLOCK 2, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED BOELTERAVE AND ALSO VACATED ALLEY ACCRUING TO SAID LOTS; SUBJECT TO
EASEMENTS OF RECORD. Block 2 Lot 9 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 10 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION
NO.3 Block 2 Lot 11 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 12 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 13
SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.933
4
18.029.21.43.0006
Abstract
C&l
LOTS 1 THRU 8, BLOCK 2, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED BOELTER AVE AND VACATED NORTHWOOD AVENUE AND ALSO VACATED ALLEY
ACCRUING TO SAID LOTS; SUBJECT TO EASEMENTS OF RECORD Block 2 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 2 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 4 SubdivisionCd 57973 SubdivisionName
MIDVALE DIVISION NO.3 Block 2 Lot 5 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 6 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
Block 2 Lot 7 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 2 Lot 8 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
1.678
5
18.029.21.43.0005
Abstract
C&l
LOTS 23 AND 24, BLOCK 1, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND ALSO VACATED ALLEY ACCRUING TO SAID LOTS. Block 1 Lot 23
SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 24 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.350
6
18.029.21.43.0003
Abstract
C&l
LOTS 13 THRU 22, BLOCK 1, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVENUE AND VACATED NORTHWOOD AVENUE AND ALSO VACATED ALLEY
ACCRUING TO SAID LOTS Block 1 Lot 13 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 14 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION
NO.3 Block 1 Lot 15 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 16 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 17
SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 18 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 19 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 20 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 21 SubdivisionCd 57973 SubdivisionName
MIDVALE DIVISION NO.3 Block 1 Lot 22 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
2.068
7
18.029.21.43.0002
Abstract
C&l
LOTS 5 THRU 12, BLOCK 1, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED BOELTER AVE AND VACATED NORTHWOOD AVE AND ALSO VACATED ALLEY ACCRUING
TO SAID LOTS; SUBJECT TO EASEMENTS OF RECORD Block 1 Lot 5 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 6 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 7 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 8 SubdivisionCd 57973 SubdivisionName
MIDVALE DIVISION NO.3 Block 1 Lot 9 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 10 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION
NO.3 Block 1 Lot 11 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 12 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
1.678
8
18.029.21.43.0001
Abstract
C&l
LOTS 1 THRU 4, BLOCK 1, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED BOELTERAVE AND ALSO VACATED ALLEY ACCRUING TO SAID LOTS; SUBJECT TO
EASEMENTS OF RECORD Block 1 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 2 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
Block 1 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 1 Lot 4 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.740
9
18.029.21.42.0001
Torrens
C&l
NW1/4-SE1/4 EXC PT WHICH LIES WITHIN A DIST OF 100FT SLY & 184FT NLY OF FOLL DESC LN: BEG @ PT ON E LINE OF SD SEC 18 DIST 655.62FT S OF El/4 COR THEREOF THN RUN
WLY @ ANG OF 90DEG 13' WITH SD E SEC LINE (MEAS FROM N TO W) FOR 2700FT & THERE TERM EXC THEREFROM ALL THAT PORTION LYING NLY OF LINE RUN PARL WITH & DIST
100FT NLY OF FOLL DESC LINE: FROM PT ON ABOVE DESC LN DIST 2124.89FT WLY OF ITS POB RUN NLY @ RT ANG WITH SD LN FOR 84FT TO POB OF LN TO BE DESC THN DEFL TO LFT
@ ANG OF 90DEG00' FOR 100 FT THN DEFL TO LFT ON 00DEG15' CRV (DELTA ANG 02DEG52') FOR 1146.67FT & THERE TERM TOG WITH ALL RT OF ACCESS BEING RT OF INGRESS &
EGRESS FROM PORTION OF ABOVE DESC TRCT NOT ACQUIRED HEREIN TO TRUNK HWY 212 SUBJ TO EASE Section 18 Township 029 Range 021
31.388
1 of 2
2_Oakdale Parcel List
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Attachment 2 (continued)
Parcel Information and Legal Description
Parcel Identification
Number
(on Attachment 1)
Parcel Number
Title Type
Class
Legal Description
Acres
10
18.029.21.41.0041
Abstract
C&l
PTDESCAS BEG @ SW COR LOT 3 THN N00DEG40'23"W ALG W LN LOT 3 320FTTHN S48DEG 27'58"E 226.81FTTHN S00DEG40'23"E 170FTTO S LN SD LOT 3 THN N89DEG51'53"W
168.02FTTO POB SubdivisionName HADLEY COMMERCE CENTER Lot 3 Block 1 SubdivisionCd 57571
0.945
11
18.029.21.41.0038
Abstract
Residential
PT LOT 14 BEING THE W 40FT OF THE SO 90FT AS MEAS AT RT ANGLE TO W LINE AND SO LINE OF SD LOT 14 SubdivisionName MEADOWLAND Lot 14 Block 1 SubdivisionCd 57955
0.082
12
18.029.21.41.0002
Abstract
C&l
PT NE1/4-SE1/4 WHICH LIES S OF SLY R/W OF MN TRK HWY 212 THEREFROM S 230FT OF E 996FT THEREOF ALSO EXC PT OF N 30FT OF S 260FT OF SD NE1/4-SE1/4 WHICH LIES E OF
A LN DRWN PARLWITH & 545FT E OF W LN OF SD NE1/4-SE1/4 SUBJ TO AN EASE FOR R/W EXC PTPLTD HADLEY COMMERCE CENTER (NEW PLAT#57571) Section 18 Township 029
Range 021
2.313
13
18.029.21.43.0008
Abstract
C&l
LOT 14, BLOCK 2, MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND VACATED ALLEY ACCRUING TO SAID LOT. Block 2 Lot 14 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3
0.152
14
18.029.21.44.0001
Abstract
C&l
SE1/4-SE1/4 ENTIRE EX TO RR 1.36A EXC TO ABRESCH & EXC NLY 150 FT Section 18 Township 029 Range 021
33.665
15
19.029.21.11.0008
Abstract
Residential
Lot A SubdivisionCd 58770 SubdivisionName WILKERSON ADD
2.834
16
19.029.21.11.0006
Abstract
Residential
E 1/2 OF NE1/4 OF NE1/4 LYING N OF RR Section 19 Township 029 Range 021
0.181
17
18.029.21.44.0003
Abstract
C&l
PT SE1/4-SE1/4 OF SEC 18 BEING NLY 150 FT ESC PT PLTD AS HADLEY COMMERCE CENTER Section 18 Township 029 Range 021
0.640
18
18.029.21.43.0049
Abstract
Residential
LOTS 5 TO 10 010 INC MIDVALE DIV 3 SubdivisionName MIDVALE DIVISION NO.3 Lot 5 Block 10 SubdivisionCd 57973
1.000
19
18.029.21.43.0034
Abstract
Residential
SubdivisionName MIDVALE DIVISION NO.3 Lot 13 Block 8 SubdivisionCd 57973
0.13
20
18.029.21.43.0032
Abstract
Residential
LOTS 4 TO 7 008 INC MIDVALE DIV 3 SubdivisionName MIDVALE DIVISION NO.3 Lot 4 Block 8 SubdivisionCd 57973
0.52
21
18.029.21.43.0028
Abstract
Residential
LOTS 5-6 & 7 007 MIDVALE DIV 3 SubdivisionName MIDVALE DIVISION NO.3 Lot 5 Block 7 SubdivisionCd 57973
0.48
22
18.029.21.43.0025
Abstract
Residential
LOTS ONE (1), TWO (2), THREE (3), AND FOUR (4), BLOCK SIX (6) ALL IN MIDVALE DIVISION NO 3, TOGETHER WITH THAT PART OF VACATED MASON AVENUE AND THAT PART OF
VACATED LAKE PLACE ACCRUING TO SAID LOTS. Block 6 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 6 Lot 2 SubdivisionCd 57973 SubdivisionName
MIDVALE DIVISION NO.3 Block 6 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 6 Lot 4 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.84
23
18.029.21.43.0024
Abstract
C&l
LOTS 1 THROUGH 8, BLOCK 5, MIDVALE DIVISION NO 3 TOGETHER WITH THAT PART OF VACATED MASON AVE, PART OF VACATED NORTHWOOD AND THAT PART OF VACATED LAKE
PLACE ACCRUING TO SAID LOTS. Block 5 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5 Lot 2 SubdivisionCd 57973 SubdivisionName MIDVALE
DIVISION NO.3 Block 5 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5 Lot 4 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5
Lot 5 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5 Lot 6 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5 Lot 7 SubdivisionCd
57973 SubdivisionName MIDVALE DIVISION NO.3 Block 5 Lot 8 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
1.99
24
18.029.21.43.0021
Abstract
EXEMPT
LOTS 1 THRU 7, BLOCK 4, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND VACATED NORTHWOOD AVE AND ALSO VACATED GARDEN PLACE
ACCRUING TO SAID LOTS. Block 4 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 4 Lot 2 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
Block 4 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 4 Lot 4 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 4 Lot 5
SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 4 Lot 6 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 4 Lot 7 SubdivisionCd 57973
SubdivisionName MIDVALE DIVISION NO.3
1.22
25
18.029.21.43.0020
Abstract
Residential
LOTS TWENTY (20), TWENTY-ONE (21), AND TWENTY-TWO (22), BLOCK THREE (3) ALL IN MIDVALE DIVISION NO 3, TOGETHER WITH THAT PART OF VACATED MASON AVENUE &
ALSO VACATED ALLEY ACCRUING TO SAID LOTS. Block 3 Lot 20 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 3 Lot 21 SubdivisionCd 57973 SubdivisionName
MIDVALE DIVISION NO.3 Block 3 Lot 22 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.62
26
18.029.21.43.0013
Abstract
Residential
LOTS THREE (3), FOUR (4), FIVE (5), BLOCK THREE (3), ALL IN MIDVALE DIVISION NO 3, TOGETHER WITH THAT PART OF VACATED GARDEN PLACE AND ALSO THAT PART OF VACATED
ALLEY ACCRUING TO SAID LOTS. Block 3 Lot 3 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 3 Lot 4 SubdivisionCd 57973 SubdivisionName MIDVALE
DIVISION NO.3 Block 3 Lot 5 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.512
27
18.029.21.43.0012
Abstract
EXEMPT
LOTS 1 AND 2, BLOCK 3, ALL IN MIDVALE DIVISION NUMBER 3, TOGETHER WITH VACATED MASON AVE AND GARDEN PLACE AND ALSO VACATED ALLEY ACCRUING TO SAID LOTS.
Block 3 Lot 1 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3 Block 3 Lot 2 SubdivisionCd 57973 SubdivisionName MIDVALE DIVISION NO.3
0.537
C&l - Commercial and Industrial
EXEMPT - Property located entirely within National Wetlands Inventory (NWI) designated wetlands.
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X «a
~
~
Site Boundary
Parcels (Washington County)
inferred Limits of Disposal Site
from Historical Reports
Wetland (National Wetland
Inventory (MNDNR); 2009 - 2014)
200
Imagery: NearMap (8/29/2019)
Contours: Ground surface contours from
2020 Drone Survey
SITE LAYOUT
Brockman Site
Oakdale, MN
FIGURE 2
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APPENDIX C - SITE INSPECTION CHECKLIST
25
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Site Inspection Checklist
1. SITE INFORMATION
Site name:
Date of inspection:
Oakdale Dump Superfund Site
3/29/2024
Location and Region:
Oakdale, Washington County, MN - Region 5
MND980609515
Agency, office, or company leading the FYR:
Weather/temperature:
USEPA - Region 5
40 degrees/Partly Cloudy/Some snow remaining.
Remedy Includes: (Check all that apply)
IEI Landfill cover/containment
~ Monitored natural attenuation
El Access controls
~ Groundwater containment
IEI Institutional controls
~ Vertical barrier walls
IEI Groundwater pump and treatment
El Other: SVE System
~ Surface water collection and treatment
Attachments:
~ Inspection team roster attached
~ Site map attached
1
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Site Inspection Checklist
II. INTERVIEWS (Check all that apply)
... Environmental -
1. O&M Site Manager Kevin Madson, Engineer 3/29/2024
Interviewed: IE] at site ~ at office ~ by phone Phone Number: Click here to enter text.
Problems, suggestions: ~ Report attached
Kevin led tour during site visit and answered all questions about site operations.
, Click or tap to
2 O&M Staff Name , Title ,
enter a elate.
Interviewed: ~ at site ~ at office ~ by phone Phone Number: Click here to enter text.
Problems, suggestions: ~ Report attached
Click or tap here to enter text.
3. Local regulatory authorities and response agencies (i.e., 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 offices, etc.) Fill in all that apply.
Agency: MPCA
Contact: Rebecca Higgins, Project Manager, 3/29/2024, P: 651-757-2240
Problems, suggestions: ~ Report attached
Click or tap here to enter text.
4. Other Interviews (optional): ~ Report attached
Spoke informally with MPCA Project Manager, Rebecca Higgins
III. ON-SITE DOCUMENTS & RECORDS VERIFIED (Check all that apply)
1. O&M Documents
~ O&M manual ~ Readily available ~ Up to date ~ N/A
~ As-built drawings ~ Readily available ~ Up to date ~ N/A
El Maintenance logs El Readily available E Up to date ~ N/A
Remarks: Click or tap here to enter text.
2. Site-Specific Health and Safety Plan E Readily available
E Contingency Plan/Emergency Response Plan E Readily available
Remarks: Click or *e to enter text.
3. O&M and OSHA Training Records
~ Readily available ~ Up to date IEI N/A
Remarks: Click or *e to enter text.
2
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Site Inspection Checklist
4.
Permits and Service Agreements
~ Air discharge permit ~ Readily available
~ Up to date
El N/A
~ Effluent discharge ~ Readily available
~ Up to date
El N/A
~ Waste disposal, POTW ~ Readily available
~ Up to date
El N/A
~ Other permits: Click or "e to enter text.
Remarks: Click or tap here to enter text.
5.
Gas Generation Records
~ Readily available
~ Up to date
El N/A
Remarks: Click or tap here to enter text.
6.
Settlement Monument Records
~ Readily available
~ Up to date
El N/A
Remarks: Click or tap here to enter text.
7.
Groundwater Monitoring Records
El Readily available
El Up to date
~ N/A
Remarks: Click or tap here to enter text.
8.
Leachate Extraction Records
~ Readily available
~ Up to date
El N/A
Remarks: Click or tap here to enter text.
9.
Discharge Compliance Records
~ Air ~ Readily available
~ Up to date
El N/A
IEI Water (effluent) ~ Readily available
~ Up to date
~ N/A
Remarks: Didn't ask to see their water discharge compliance records, but there office was very organized
and all records were present.
10.
Daily Access/Security Logs
~ Readily available
~ Up to date
~ N/A
Remarks: Didn't ask to see access/security logs, but a badge is required to open the security fence, and
also to access the water treatment building. The site appears very secure.
IV. O&M COSTS
1.
O&M Organization
~ State in-house ~ Contractor for State
~ PRP in-house IEI Contractor for PRP
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Site Inspection Checklist
~ Federal Facility in-house ~ Contractor for Federal Facility
Remarks: Click or tap here to enter text.
2. O&M Cost Records
~ Readily available ~ Up to date ~ Funding mechanism/agreement in place
Original O&M cost estimate Click or
"iere to enter text.
~ Breakdown attached
Total annual cost by year for review period if available
From
To
Total cost
Click c
)r
»enter a
Click or tap to
Click or tap 1
iere to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click c
)r
»enter a
Click or tap to
Click or tap 1
iere to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click c
)r
»enter a
Click or tap to
Click or tap 1
"iere to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click c
)r
»enter a
Click or tap to
Click or tap 1
"iere to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click c
)r
»enter a
Click or tap to
Click or tap 1
"iere to
~ Breakdown attached
date.
enter a date.
enter text.
No discussion of PRP O&M costs
3. Unanticipated or Unusually High O&M Costs During Review Period
Describe costs and reasons:
No discussion of PRP O&M costs
V. ACCESS AND INSTITUTIONAL CONTROLS
IS Applicable ~ N/A
1. Fencing Damaged ~ Location shown on site map ISI Gates secured ~ N/A
Remarks: Locked gate at access road to Abresch parcel, Brockman parcel, and the SVE system north of
34th St. N all in good condition.
2. Other Access Restrictions ~ Location shown on site map ~ Gates secured
Remarks: Signage in good condition.
3. Institutional Controls (ICs)
4
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Site Inspection Checklist
A. Implementation and Enforcement
Site conditions imply ICs not properly implemented
~ Yes
El No ~ N/A
Site conditions imply ICs not being fully enforced
~ Yes
El No ~ N/A
Type of monitoring (e.g., self-re porting, drive by)
Click or tap
here to enter text.
Frequency
Click or tap
here to enter text.
Responsible party/agency
3M
Contact: Name , Title , Click or tap to enter a date., P: Phi
3ne Number
Reporting is up-to-date
~ Yes
~ No El N/A
Reports are verified by the lead agency
~ Yes
~ No El N/A
Specific requirements in deed or decision documents have been
met
~ Yes
~ No El N/A
Violations have been reported
~ Yes
~ No El N/A
Other problems or suggestions:
Site security is taken very seriously at the Oakdale site, and the Site ICs appear to be in place and
effective. 1 am not aware of any reporting.
B. Adequacy ~ ICs are adequate IEI ICs are inadequate
~ N/A
Remarks: Draft restrictive environmental covenant for the Brockman property is being reviewed by
MPCA currently. Restrictive environmental covenant is approved and implemented for the Abresch
property.
4. General
A. Vandalism/Trespassing ~ Location shown on site map
IEI No vandalism evident
Remarks: Click or tap here to enter text.
B. Land use changes on site ~ N/A
Remarks: Brockman property is in redevelopment and is planned to be transferred to the City of
Oakdale.
C. Land use changes off site El N/A
Remarks: Click or tap here to enter text.
VI. GENERAL SITE CONDITIONS
1. Roads El Applicable
~ N/A
A. Roads damaged ~ Location shown on site map
IEI Roads adequate ~ N/A
Remarks: Click or tap here to enter text.
5
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Site Inspection Checklist
B. Other Site Conditions
Remarks:
VII. LANDFILL COVERS
1. Landfill Surface
~ Applicable
E N/A
A. Settlement (Low Spots) ~ Location Shown on Site Map
Areal Extent: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
~ Settlement Not Evident
B. Cracks ~ Location Shown on Site Map
Lengths: Click or tap here .
Widths: Click or tap here to enter text.
to enter text.
Remarks: Click or tap here to enter text.
~ Cracking Not Evident
Depths: Click or re to
C. Erosion ~ Location Shown on Site Map
Areal Extent: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
~ Erosion Not Evident
D. Holes ~ Location Shown on Site Map
Areal Extent: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
~ Holes Not Evident
E. Vegetative Cover E Grass
~ Tress/Shrubs (indicate size and locations on a diagram
Remarks: Click or tap here to enter text.
IEI Cover Properly Established
El No Signs of Stress
F. Alternative Cover (armored rock, concrete, etc.)
Remarks: Click or tap here to enter text.
~ N/A
G. Bulges ~ Location Shown on Site Map
Areal Extent: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
~ Bulges Not Evident
H. Wet Areas/Water Damage
~ Wet Areas/Water Damage Not Evident
E Wet Areas O Location Shown on Site Map
E Ponding d Location Shown on Site Map
~ Seeps n Location Shown on Site Map
6
Areal Extent: Click or tap here to enter
text.
Areal Extent: Click or tap here to enter
text.
Areal Extent: Click or tap here to enter
-------
Site Inspection Checklist
text.
~ Soft Subgrade D Location Shown on Site Map
Areal Extent: Click or tap here to enter
text.
Remarks: Click or tap here to enter text.
1. Slope Instability ~ Location Shown on Site Map
~ Slope Instability Not Evident
~ Slides
Areal Extent: Click or tap here to enter
text.
Remarks: Click or tap here to enter text.
2. Benches ~ Applicable
El N/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.)
A. Flows Bypass Bench ~ Location Shown on Site Map
~ N/A or Okay
Remarks: Click or tap here to enter text.
B. Bench Breached ~ Location Shown on Site Map
~ N/A or Okay
Remarks: Click or tap here to enter text.
C. Bench Overtopped ~ Location Shown on Site Map
~ N/A or Okay
Remarks: Click or tap here to enter text.
3. Letdown Channels ~ Applicable
El N/A
(Channel lined with erosion control mats, riprap, grout bags, or gabions that descend down 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.)
A. Settlement ~ Location Shown on Site Map
~ Settlement Not Evident
Areal Extent: Click or tap here to enter text.
Depth: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
B. Material Degradation ~ Location Shown on Site Map
~ Degradation Not Evident
Material Type: Click or tap here to enter text.
Areal Extent: Click or tap here to enter
text.
Remarks: Click or tap here to enter text.
C. Erosion ~ Location Shown on Site Map
~ Erosion Not Evident
Areal Extent: Click or tap here to enter text.
Depth: Click or tap here to enter text.
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Site Inspection Checklist
Remarks: Click or tap here to enter text.
D. Undercutting ~ Location Shown on Site Map ~ Undercutting Not Evident
Areal Extent: Click or tap here to enter text. Depth: Click or "e to enter text.
Remarks: Click or tap here to enter text.
E. Obstructions ~ Location Shown on Site Map ~ Undercutting Not Evident
Type: Click or tap here to enter text.
Areal Extent: Click or tap here to enter text. Size: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
F. Excessive Vegetative Growth ~ Location Shown on Site Map ~ Excessive Growth Not Evident
. ^ ^ ^ ^ ~ Vegetation in channels does not obstruct
Areal Extent: Click or tap here to enter text.
flow
Remarks: Click or tap here to enter text.
4. Cover Penetrations ~ Applicable KIN/A
A. Gas Vents ~ Active ~ Passive
~ Properly secured/locked ~ Functioning ~ Routinely sampled
~ Good condition ~ Evidence of leakage at penetration
~ Needs Maintenance ~ N/A
Remarks: Click or tap here to enter text.
B. Gas Monitoring Probes
~ Properly secured/locked
~ Good condition
~ Needs Maintenance
Remarks: Click or tap here to enter text.
C. Monitoring Wells
~ Properly secured/locked
~ Good condition
~ Needs Maintenance
~ Functioning ~ Routinely sampled
~ Evidence of leakage at penetration
~ N/A
~ Functioning ~ Routinely sampled
~ Evidence of leakage at penetration
~ N/A
8
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Site Inspection Checklist
Remarks: Click or tap here tc
enter text.
D. Leachate Extraction Wells
~ Properly secured/locked
~ Functioning
~ Routinely sampled
~ Good condition
~ Evidence of leakage at penetration
~ Needs Maintenance
~ N/A
Remarks: Click or tap here tc
enter text.
E. Settlement Monuments
~ Located ~ Routinely Surveyed ~ N/A
Remarks: Click or tap here tc
enter text.
5.
Gas Collection and Treatment
~ Applicable
El N/A
A. Gas Treatment Facilities
~ Flaring
~ Thermal Destruction
~ Collection for Reuse
~ Good condition
~ Needs Maintenance
Remarks: Click or tap here tc
enter text.
B. Gas Collection Wells, Manifolds, and Piping
~ Good condition
~ Needs Maintenance
~ N/A
Remarks: Click or tap here tc
enter text.
C. Gas Monitoring Facilities (e.g. gas monitoring of adjacent homes or buildings)
~ Good condition
~ Needs Maintenance
~ N/A
Remarks: Click or tap here tc
enter text.
6.
Cover Drainage Layer
~ Applicable
El N/A
A. Outlet Pipes Inspected
~ Functioning
~ N/A
Remarks: Click or tap here tc
enter text.
B. Outlet Rock Inspected
~ Functioning
~ N/A
Remarks: Click or tap here tc
enter text.
7.
Detention/Sediment Ponds
~ Applicable
El N/A
A. Siltation
~ Siltation Not Evident
~ N/A
Areal Extent: Click or tap here to enter text. Depth: Click
ir tap here to enter text.
Remarks: Click or tap here tc
enter text.
B. Erosion
~ Erosion Not Evident
9
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C. Outlet Works
~ Functioning
~ N/A
Remarks: Click or tap here to enter text.
D. Dam
~ Functioning
~ N/A
Remarks: Click or tap here to enter text.
8. Retaining Walls
~ Applicable
El N/A
Areal Extent: Click or tap here to enter text
Remarks: Click or tap here to enter text.
Site Inspection Checklist
Depth: Click or tap here to enter text.
A. Deformations ~ Location Shown on Site Map
Horizontal Displacement: Click or re to enter text.
Vertical Displacement: Click or tap here to enter text.
Rotational Displacement: Clic re to enter text.
Remarks: Click or tap here to enter text.
~ Deformation Not Evident
B. Degradation ~ Location Shown on Site Map ~ Deformation Not Evident
Remarks: Click or tap here to enter text.
9. Perimeter Ditches/Off-Site Discharge
Applicable
~ N/A
A. Siltation ~ Location Shown on Site Map ~ Siltation Not Evident
Areal Extent: Click or tap here to enter text. Depth: Click or tap here to enter text.
Remarks: Raleigh Creek runs through the Oakdale Dump Site, as mentioned in the FYR, 3M is working
on plans to divert the creek around the site in an effort to reduce off-site migration of PFAS.
B. Vegetative Growth ~ Location Shown on Site Map ~ N/A
~ Vegetation Does Not Impede Flow
Areal Extent: Click or tap here to enter text. Type: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
C. Erosion ~ Location Shown on Site Map ~ Erosion Not Evident
Areal Extent: Click or tap here to enter text. Depth: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
D. Discharge Structure ~ Functioning ~ N/A
Remarks: Click or tap here to enter text.
10
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Site Inspection Checklist
VIII. VERTICAL BARRIER WALLS
~ Applicable
El N/A
1.
Settlement ~ Location Shown on Site Map ~ Settlement Not Evident
Areal Extent: Click or tap here to enter text.
Depth: Click or re to enter text.
Remarks: Click or tap here to enter text.
2.
Performance Monitoring Type of Monitoring: Click or tap here to enter text.
~ Performance Not Monitored
~ Evidence of Breaching
Frequency: Click or tap here to enter text.
Head Differential: Clic re to enter text.
Remarks: Click or tap here to enter text.
IX. GROUNDWATER/SURFACE WATER REMEDIES
El Applicable
~ N/A
1.
Groundwater Extraction Wells, Pumps, and Pipelines El Applicable ~ N/A
A. Pumps, Wellhead Plumbing, and Electrical
~ N/A
IEI Good Condition ~ All Required Wells Properly Operating ~ Needs Maintenance
Remarks: Click or tap here to enter text.
B. Extraction System Pipelines, Valves, Valve Boxes, and Other Appurtenances
IEI Good Condition
~ Needs Maintenance
Remarks: Click or tap here to enter text.
C. Spare Parts and Equipment
~ Needs to be Provided
El Readily Available ~ Good Condition ~ Requires Upgrade
Remarks: Click or tap here to enter text.
2.
Surface Water Collection Structures, Pumps, and Pipelines ~ Applicable El N/A
A. Collection Structures, Pumps, and Electrical
~ Good Condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.
B. Surface Water Collection System Pipelines, Valves, Valve Boxes, and Other Appurtenances
~ Good Condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.
C. Spare Parts and Equipment
~ Needs to be Provided
~ Readily Available ~ Good Condition ~ Requires Upgrade
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Site Inspection Checklist
Remarks: Click or tap here to enter text.
3. Treatment System E Applicable ~ N/A
A.
Treatment Train (Check components that apply)
~ Metals removal ~ Oil/Water Separation ~ Bioremediation
~ Air Stripping E Carbon Absorbers
IE] Filters Click or tap here to enter text.
IEI Additive (e.g. chelation agent, flocculent) Click or tap here to enter text.
~ Others Click or tap here to enter text.
El Good Condition ~ Needs Maintenance
~ Sampling ports properly marked and functional
~ Sampling/maintenance log displayed and up to date
El Equipment properly identified
E Quantity of groundwater treated annually In 2022, 7.2 million gallons of water were removed by
the VOCC groundwater pumpout system and treated
~ Quantity of surface water treated annually Click or tap here to enter text.
Remarks: Click or tap here to enter text.
B.
Electrical Enclosures and Panels (properly rated and functional)
~ N/A E Good Condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.
C.
Tanks, Vaults, Storage Vessels ~ N/A
~ Proper Secondary Containment E Good Condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.
D.
Discharge Structure and Appurtenances
~ N/A E Good Condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.
E.
Treatment Building(s)
~ N/A E Good condition (esp. roof and doorways)
~ Needs repair ~ Chemicals and equipment properly stored
Remarks Click or tap here to enter text.
F.
Monitoring Wells (Pump and Treatment Remedy) ~ N/A
12
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Site Inspection Checklist
El Properly secured/locked
El Functioning
El Routinely sampled
~ All required wells located
IEI Good condition
~ Needs Maintenance
Remarks Click or tap here to enter text.
4. Monitoring Data
A. Monitoring Data:
IEI Is Routinely Submitted on Time
El Is of Acceptable Quality
B. Monitoring Data Suggests:
El Groundwater plume is effectively contained
El Contaminant concentrations are declining
5. Monitored Natural Attenuation
A. Monitoring Wells (natural attenuation remedy) |X| N/A
~ Properly secured/locked ~ Functioning ~ Routinely sampled
~ All required wells located ~ Needs Maintenance ~ Good condition
Remarks:
X. OTHER REMEDIES
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.
XI. OVERALL OBSERVATIONS
1. 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 emission, etc.).
No issues were observed. The remedy is working as intended.
2. 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.
13
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Site Inspection Checklist
O&M procedures at the site appear to be adequate and appropriate for current protectiveness of the
remedy. In the FYR there is discussion about amending the O&M plan to include Long Term Stewardship
information to ensure long-term protectiveness of the remedy.
3. 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 signs or indication of potential remedy problems.
4. Opportunities for Optimization
Describe possible opportunities for optimization in monitoring tasks or the operation of the remedy.
No recommendations for optimization.
14
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APPENDIX D - 2022 ANNUAL VOC GROUNDWATER REPORT TABLES & FIGURES
26
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3M Environment, Health, Safety, and Product Stewardship 3M Center 224-5W-17
St. Paul, MN 55144-1000
December 28, 2023
ELECTRONIC MAIL
Ms. Elizabeth Kaufenberg
Supervisor, Remediation Division
Minnesota Pollution Control Agency
520 Lafayette Road North
St. Paul, MN 55155
Re: Former 3M Oakdale Disposal Site
Administrative Order by Consent and Response Order by Consent, July 26, 1983
2022 Annual VOC Groundwater Monitoring Report
Dear Ms. Kaufenberg,
A link to the subject report was delivered electronically via email today. A hard copy will not
be sent unless requested. The report contains a summary of monitoring activities related to
VOCs at the Site in 2022.
A separate report was submitted for monitoring activities related to perfluorochemicals at the former
3M Oakdale Disposal Site.
Please contact me by phone at 651 -3 81 -25 83 or by email at kmadson@,mmm.com with any questions,
comments, or concerns.
Kevin Madson
Senior Environmental Engineer
Enclosure
cc: Megan Holthaus, MPCA, (electronic)
Rebecca Higgins, MPCA, (electronic)
Jonathan Rybacki, Weston, (electronic)
Shane Waterman, 3M (electronic)
Andrew Kleist, USEPA, (electronic)
Chris Volkers, City of Oakdale, (electronic)
John Hanson, Valley Branch Watershed District, (electronic, w/o enclosure)
Karalynn Marr, Metropolitan Council Environmental Services, (electronic, w/o enclosure)
Patrick Sarafolean, MDH, (hardcopy)
Evan Divas, MDH, (w/o enclosure)
Jessica Collin-Pilarski, Washington County, (w/o enclosure)
Bradley Lindaman, Ramsey-Washington Metro Watershed District, (w/o enclosure)
Harvey Thorleifson, MN Geological Survey, (w/o enclosure)
Chuck Ahl, City of Maplewood, (w/o enclosure)
Dan Boxrude, Short, Elliot & Hendrickson, (w/o enclosure)
Sincerely,
-------
Restoring Resource Efficiency
2022 ANNUAL VOLATILE ORGANIC COMPOUND (VOC)
GROUNDWATER MONITORING REPORT
FOR THE OAKDALE ABRESCH SITE
OAKDALE, MINNESOTA
December 2023
Prepared for:
3M Chemical Operations, LLC
St. Paul, Minnesota 55144
Prepared by:
Weston Solutions, Inc.
West Chester, Pennsylvania 19380
W.O. No. 02181.202.046.2002
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Restoring Resource Efficiency
TABLE OF CONTENTS
Section Page
1. INTRODUCTION 1-1
1.1 VOLATILE ORGANIC COMPOUND REMEDIAL ACTIVITIES 1-1
1.2 PURPOSE OF THE GROUNDWATER VOC MONITORING REPORT 1-2
2. MONITORING PROGRAM 2-1
2.1 GENERAL 2-1
2.2 SAMPLE COLLECTION AND ANALYSIS 2-2
2.3 ABRESCH SITE GROUNDWATER TREATMENT SYSTEM
MONITORING 2-3
3. GROUNDWATER MONITORING AND RESULTS 3-1
3.1 GROUNDWATER ELEVATIONS 3-1
3.2 GROUNDWATER QUALITY 3-4
3.2.1 Upper and Lower Alluvium Units 3-5
3.2.2 Platteville Formation 3-8
3.2.3 St. Peter Sandstone 3-10
4. GROUNDWATER PUMPOUT TREATMENT SYSTEM OPERATION AND
MAINTENANCE 4-1
4.1 FLOW DATA 4-1
4.2 WELL MAINTENANCE 4-1
4.3 TREATMENT SYSTEM OPERATIONS AND MAINTENANCE 4-2
4.4 VOC REMOVAL 4-3
5. FINDINGS AND RECOMMENDATIONS 5-1
5.1 GROUNDWATER CAPTURE 5-1
5.2 HISTORICAL GROUNDWATER QUALITY TRENDS 5-1
5.3 2022 TREATMENT SYSTEM OPERATION 5-2
5.4 RECOMMENDATIONS 5-3
6. REFERENCES 6-1
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LIST OF APPENDICES
APPENDIX A
APPENDIX B
APPENDIX C
APPENDIX D
2022 MONTHLY DISCHARGE REPORTS
SUMMARY OF WELL CONSTRUCTION INFORMATION
LABORATORY ANALYTICAL REPORTS
Appendix C.l: June 2022 Groundwater Sampling Event
Appendix C.2: October - November 2022 Groundwater Sampling Event
HISTORICAL VOC GROUNDWATER ANALYTICAL DATA
2006-2022
Table D-l: Groundwater Quality Data, VOC Pumpout Wells
Table D-2: Groundwater Quality Data, Pumpout Wells Converted to
Monitoring Wells
Table D-3: Groundwater Quality Data, Water Table Monitoring Wells
(Upper Alluvial Unit)
Table D-4: Groundwater Quality Data, Monitoring Wells
(Lower Alluvium)
Table D-5: Groundwater Quality Data, Platteville Bedrock Monitoring
Wells
Table D-6: Groundwater Quality Data, St. Peter Bedrock Monitoring
Well
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LIST OF FIGURES
Figure Page
Figure 1-1 Groundwater Monitoring Areas and Site Pumpout Wells 1-4
Figure 2-1 Site Groundwater VOC Monitoring Network - 2022 2-4
Figure 2-2 Regional Groundwater VOC Monitoring Network - 2022 2-5
Figure 3-1 Geologic Cross Section Transect A-A' and Well Location Map 3-11
Figure 3-2 Geologic Cross Section A-A' 3-12
Figure 3-3 Static Water Level Head Differential between Platteville and Lower Alluvium
Wells 3-13
Figure 3-4 Hydrograph of Platteville (W3 and W8) and Lower Alluvium Wells (W2012 and
W2008) 3-14
Figure 3-5 Groundwater Elevation Contour Map - Upper Alluvium Aquifer, June 28, 2022
3-15
Figure 3-6 Groundwater Elevation Contour Map - Lower Alluvium Aquifer, June 28, 2022
3-16
Figure 3-7 Groundwater Elevation Contour Map - Upper Alluvium Aquifer, November 21,
2022 3-17
Figure 3-8 Groundwater Elevation Contour Map - Lower Alluvium Aquifer, November 21,
2022 3-18
Figure 3-9 Isopropyl Ether Concentration Trends in Platteville Wells W80 and W6102 3-19
Figure 4-1 Cumulative Discharge Data, VOC Pumpout Wells 4-4
Figure 4-2 Pumpout Well PW1, Historical Average Pumping Rate 4-5
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Figure 4-3 Pumpout Well PW2, Historical Average Pumping Rate 4-6
Figure 4-4 Pumpout Well PW3, Historical Average Pumping Rate 4-7
Figure 4-5 Pumpout Well PW4, Historical Average Pumping Rate 4-8
Figure 4-6 Pumpout Well PW6, Historical Average Pumping Rate 4-9
Figure 4-7 Pumpout Well PW10, Historical Average Pumping Rate 4-10
Figure 4-8 Pumpout Well PW11, Historical Average Pumping Rate 4-11
Figure 4-9 Pumpout Well PW1, Cumulative Discharge Data 4-12
Figure 4-10 Pumpout Well PW2, Cumulative Discharge Data 4-13
Figure 4-11 Pumpout Well PW3, Cumulative Discharge Data 4-14
Figure 4-12 Pumpout Well PW4, Cumulative Discharge Data 4-15
Figure 4-13 Pumpout Well PW6, Cumulative Discharge Data 4-16
Figure 4-14 Pumpout Well PW10, Cumulative Discharge Data 4-17
Figure 4-15 Pumpout Well PW11, Cumulative Discharge Data 4-18
Figure 4-16 Historical Efficiency of VOC Removal, Pumpout Wells PW1, PW2 and PW4 ..4-19
Figure 4-17 Historical Efficiency of VOC Removal, Pumpout Well PW3 4-20
Figure 4-18 Historical Efficiency of VOC Removal, Pumpout Well PW6 4-21
Figure 4-19 Historical Efficiency of VOC Removal, Pumpout Well PW10 4-22
Figure 4-20 Historical Efficiency of VOC Removal, Pumpout Well PW11 4-23
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LIST OF TABLES
Table Page
Table 2-1 VOC Monitoring Plan Schedule - 2022 2-6
Table 3-1 2022 Depth-to-Groundwater and Groundwater Elevation Data 3-20
Table 3-2 2022 Groundwater VOC Analytical Data, VOC Pumpout Wells 3-22
Table 3-3 2022 Groundwater VOC Analytical Data, VOC Pumpout Wells Converted to
Monitoring Wells 3-23
Table 3-4 2022 Groundwater VOC Analytical Data, Upper Alluvium Monitoring Wells ..3-24
Table 3-5 2022 Groundwater VOC Analytical Data, Lower Alluvium Monitoring Wells ..3-25
Table 3-6 2022 Groundwater VOC Analytical Data, Platteville Monitoring Wells 3-26
Table 3-7 Historical Yearly Averages of Total VOC Concentrations, Active Pumping Wells3-
27
Table 4-1 2022 Quarterly Flow Totals - Pumpout Wells 4-24
Table 4-2 Pumpout Well Operating Data - 2017 to 2022 4-25
Table 4-3 Historical VOC Mass Removed, Active Pumping Wells 4-26
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1. INTRODUCTION
Since 1980, the 3M Company (3M) has cooperated with the Minnesota Pollution Control
Agency (MPCA) in the investigation and remediation of the Oakdale Site in Oakdale,
Minnesota. The Oakdale Site consists of three former waste disposal areas, identified as the
Abresch, Brockman and Eberle areas, which received wastes from the 3M St. Paul area
facilities; the 3M Cottage Grove, Minnesota, facility; and other companies/entities from the
1940s to 1960. Investigations and any follow-up actions have been previously completed for
the Brockman and Eberle areas. The subject of this 2022 Annual Volatile Organic Compound
(VOC) Groundwater Monitoring Report is the Abresch Site, which will be referred to as the
Site.
1.1 VOLATILE ORGANIC COMPOUND REMEDIAL ACTIVITIES
In the early 1980s, 3M conducted an investigation to characterize the presence of VOCs in
various environmental media and to develop an understanding of the Abresch Site
hydrogeology. In July 1983, 3M entered into a Consent Order (U.S. EPA, 1983) with the
MPCA and the United States Environmental Protection Agency (U.S. EPA) to perform
remedial actions at the Abresch Site. Subsequently, 3M removed waste materials and
associated soils from the Abresch Site and, in 1985, installed a groundwater pumpout system
to contain and remove shallow groundwater affected by VOCs at, and adjacent to, suspected
source areas. 3M has operated the groundwater pumpout system continuously since 1985 to
remediate the shallow groundwater affected by the VOCs.
In 2003, 3M and MPCA agreed to implement modifications to the VOC groundwater
extraction program and corresponding monitoring plan based on the first 17 years of operation
of the groundwater remediation system. As shown on Figure 1-1, the 2003 modification of the
VOC monitoring program designated the following areas associated with the VOC pumpout
system:
• Area A - The area upgradient of six pumpout wells (i.e., PW1, PW2, PW3, PW4,
PW6 and PW11) on the central portion of the Abresch Site.
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• Area B - The area associated with six pumpout wells (i.e., PW1, PW2, PW3, PW4,
PW6 and PW11) on the western portion of the Abresch Site.
• Area C - The area associated with the three pumpout wells (i.e., PW7, PW8 and PW9)
that were shut down in 2003 on the eastern portion of the Abresch Site.
• Area D - The area where changes in groundwater quality and elevation in the upper
alluvium are evaluated relative to the cessation of pumpout wells PW7, PW8 and PW9
in 2003.
• Isthmus Area - The area associated with pumpout well PW10.
For consistency with previous reports, these designations are maintained in this report. As
shown on Figure 1-1, thirteen additional groundwater pumpout wells (PW14 through PW26)
were installed as part of the per- and polyfluoroalkyl substances (PFAS) Remedial
Design/Response Action (RD/RA) Plan for the Abresch Site (WESTON, 2009). These
pumpout wells are primarily located in the southeast portion of the Abresch Site, although
three wells (PW22, PW23 and PW24) are in the isthmus area and one well (PW26) is in Area
C. These wells provide additional containment and removal of VOCs in these areas of the
Abresch Site.
1.2 PURPOSE OF THE GROUNDWATER VOC MONITORING REPORT
A groundwater monitoring program was developed in response to Part 8.0 of Exhibit A of the
1983 Consent Order. The purposes of the monitoring program are to "assess the effectiveness
of the remedial program, detect any future contaminant migration into deeper aquifers, and to
prevent any further exposure of harmful quantities of chemicals to the public that are
presently being encountered in the shallow groundwater beneath the Abresch Site."
In November 2010, 3M submitted a comprehensive site-wide PFAS and VOC Groundwater
and Surface Water Sampling Plan (Sampling Plan) to the MPCA (WESTON, 2010). The
VOC monitoring program in the Sampling Plan remained the same as previously
implemented. This annual report, prepared by Weston Solutions, Inc. (WESTON®) for 3M, is
consistent with the annual report requirements described in the "Final Groundwater
Monitoring Plan, Oakdale Disposal Sites" dated March 1985 (Barr, 1985).
2023-12-20_2022 OKMN Annual VOC Report
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Figure 1-1
Site Location Map
Abresch Site
Oakdale, MN
Map Source:
ESRI Imagery Mapping Service, 2019
Railroad
Inferred Limits of
the Abresch Area
Surface Water Features
Legend
= 8 Fenceline
Intermittent Surface
Water Features
File: Y:\Oakdaie\mxd\basemap_tabloid.mxd, 6/21/2018 2:53:16 PM, johna
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2. MONITORING PROGRAM
2.1 GENERAL
The results discussed in this report provide a summary of the groundwater quality and
groundwater elevation monitoring program for the VOC groundwater pumpout system at the
Abresch Site. Monthly discharge reports for the groundwater pumpout system were prepared
and sent to the City of Oakdale. A copy of each of these monthly discharge reports for 2022 is
provided in Appendix A.
A network of groundwater pumpout wells has been in operation in the central area of the
Abresch Site (south of Highway 14 (former Highway 5)) since the mid-1980s; this original
network currently consists of six operating groundwater pumpout wells (PW1, PW2, PW3,
PW4, PW6 and PW11) completed within unconsolidated sediments comprising the upper and
lower alluvium aquifer. One other groundwater pumpout well (PW10) that is part of the
original network is located in the central (isthmus) area of the Abresch Site. Twelve additional
alluvial aquifer pumpout wells (PW14 through PW25) were installed in the central and
southeast area of the Abresch Site in 2008 as part of the PFAS RD/RA Plan for the Abresch
Site. One additional alluvial aquifer pumpout well (PW26) was installed north of Highway 14
in September 2011 after soil excavation activities were completed in this area for the RD/RA
program. Additional monitoring wells were installed at the Abresch Site in July, August,
September 2020, and June 2022 as part of the PFAS program at the Abresch Site. These wells
were included in the water level monitoring program completed in 2022. New well W522,
installed in June 2022, was added to the water level and PFAS monitoring program in the
second half 2022. The Abresch Site well locations are shown on Figure 2-1, and the regional
monitoring well network is shown on Figure 2-2.
Table 2-1 contains a listing of the wells in the existing monitoring well network at the
Abresch Site with the MPCA-approved wells to be sampled for VOCs and depth-to-
groundwater measurements in 2022. As shown in Table 2-1, water level readings are taken
semiannually from all monitoring wells/piezometers, with the single exception of a private
well (W80). Well W80 is used for agricultural/irrigation purposes only and is not accessible to
2023-12-20_2022 OKMN Annual VOC Report
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Restoring Resource Efficiency
collect depth-to-groundwater measurements. VOC samples are collected from four wells
(W26R, PW7, PW8 and PW9) on a semiannual basis (performed in June 2022), and from 26
additional wells during the annual sampling round (performed in October - November 2022).
2.2 SAMPLE COLLECTION AND ANALYSIS
Semiannual groundwater sampling for VOCs was conducted by WESTON on June 15-16,
2022, and October 31 through November 3, 2022, followed by sampling of one residential
off-site well performed on November 11, 2022. All VOC samples were analyzed by Pace
Analytical Services, LLC, Minneapolis, Minnesota, Pace National in Mount Juliet, Tennessee,
and Pace Analytical Services, LLC in Green Bay, Wisconsin. The planned water quality
sampling at monitoring well W30 was not conducted since this well was dry during the
October - November 2022 annual sampling event. Two monitoring wells (W31 and W6102)
were purged dry and sampled after recharging during the October - November 2022 event. No
other modifications to the Field Sampling Plan were made during either semiannual sampling
event. Sampling methods and analytical procedures are presented in the May 2003 QAPP
(Barr Engineering Company, 2003).
As specified in the Sampling Plan, groundwater samples are collected and analyzed for two
separate lists of VOC analytes. The VOC lists are as follows:
• List 1 VOCs:
o Acetone
o Benzene
o 1,1 -Di chl oroethane
o 1,2-Dichl oroethane
o 1,1 -Di chl oroethene
o cis-l,2-Dichloroethene
o trans-1,2-Dichl oroethene
o Ethylbenzene
o Isopropyl ether
o Methyl ethyl ketone (MEK)
o Tetrahydrofuran
• List 2 VOCs:
o Isopropyl alcohol (2-Propanol)
2023-12-20_2022 OKMN Annual VOC Report
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Restoring Resource Efficiency
o 2-Butyl alcohol
o 4-methyl-2-pentanol
o Methylene chloride
o Methyl isobutyl ketone (MIBK)
o Toluene
o Xylenes, total
The groundwater samples collected in October - November 2022 were analyzed for both List
1 and List 2 VOCs. Samples from monitoring wells W80 and W6102 collected in October -
November 2022, were submitted for analysis of List 1 VOCs as specified in the Sampling
Plan, however the laboratory analyzed for both List 1 and List 2 VOCs, therefore all the
results are provided.
2.3 ABRESCH SITE GROUNDWATER TREATMENT SYSTEM MONITORING
In accordance with the Metropolitan Council Environmental Services (MCES) permit for the
groundwater treatment facility, monitoring of the water treated and discharged to the sewer
was conducted at the Site in 2022. The individual monthly discharge reports for 2022
submitted to the City of Oakdale and the MPCA are included in Appendix A. Laboratory
analytical and discharge volume data were submitted to the MCES in accordance with the
requirements of the permit.
2023-12-20_2022 OKMN Annual VOC Report
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File: Y:\Oakdale\mxdWOC_gw_monitoring_network_2022.mxd, 3/3/2023 10:46:33 AM, ricksc
Figure 2-1
Site Groundwater VOC
Monitoring Network - 2022
Abresch Site
Oakdale, Minnesota
Legend
Inferred Limits of the Site Area
| | Groundwater Monitoring Areas
ll Upper Alluvium Monitoring Well
D Lower Alluvium Monitoring Well
A Platteville Monitoring Well
Alluvium Monitoring Well
~ (Former Pumpout Well Completed
Across Upper & Lower Alluvium)
B Pumpout Well
® St. Peter Monitoring Well
® Piezometer
2022 VOC Groundwater
Sampling Location
Notes:
1) W21 and W26 were abandoned
in November 2010. Replacement
wells were installed and included in
the monitoring network after soil
excavation activities were
completed in this area.
2) Wells denoted with an asterisk (*)
are typically dry during periods of
low precipitation and may not yield
groundwater samples.
Imagery Source: ESRI Imagery Mapping Service, 2021
-------
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Regional Groundwater VOC
Monitoring Network - 2022
Abresell Site
Oakdale, Minnesota
Legend
Inferred Limits of the Site Area
Fenceline
M Upper Alluvium Monitoring Well
• St. Peter Monitoring Well
A Platteville Monitoring Well
2022 VOC Groundwater
Sampling Location
Imagery Source: ESRI Imagery Mapping Service, 2021
File: Y:\Oakdale\mxd\gw_monitoring_network_reg_2022.mxd, 1/18/2023 3:42:17 PM, ricksc
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Table 2-1
VOC Monitoring Plan Schedule - 2022
Abresch Site, Oakdale, MN
Well
Aquifer
Well Type
June
2022
Oct/Nov
2022
Area A (npgrariienl of remaining piimpoiil wells)
W20
Upper Alluvium
Monitoring
WL
WL
W22
Upper Alluvium
Monitoring
WL
WL
W2007
Lower Alluvium
Monitoring
WL
WL
Area B (area of remaining pumpout well\ near gap in lower confining nnil)
PW1
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
PW2
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
PW3
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
PW4
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
PW6
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
PW11
Upper and Lower Alluvium
Pumpout
WL
List 1&2, WL
W23
Upper Alluvium
Monitoring
WL
WL
W28
Upper Alluvium
Monitoring
WL
WL
W29
Upper Alluvium
Monitoring
WL
WL
W36
Upper Alluvium
Monitoring
WL
WL
W2001
Lower Alluvium
Monitoring
WL
WL
W2006
Lower Alluvium
Monitoring
WL
WL
W2012
Lower Alluvium
Monitoring
WL
WL
Area ( (upgrariienl ol'piimpoiil wells llial were \luil nITin 2003)
W21R3
Upper Alluvium
Monitoring
WL
WL
W26R3
Upper Alluvium
Monitoring
List 1&2, WL
List 1&2, WL
PW7
Upper and Lower Alluvium
Pumpout
List 1&2, WL
List 1&2, WL
PW8
Upper and Lower Alluvium
Pumpout
List 1&2, WL
List 1&2, WL
PW9
Upper and Lower Alluvium
Pumpout
List 1&2, WL
List 1&2, WL
APZ44
Upper Alluvium
Piezometer
WL
WL
W517b
Lower Alluvium
Monitoring
WL
WL
List 1 : VOCs including: Acetone, Benzene, 1,1-Dichloroethane, 1,2-Dichloroethane, 1,1-Dichloroethylene, cis &trans-l,2-
Dichloroethylene, ethylbenzene, isopropyl ether, methyl ethyl ketone, and tetrahydrofuran
List 2: VOCs including: isopropyl alcohol, 2-butyl alcohol, 4-Methyl-2-pentanol, methylene chloride, methyl isobutyl ketone, toluene, and
total xylenes.
WL: Water Level Measurement
s: Monitoring wells W21 and W26 were abandoned in November 2010 due to soil excavation activities in this area. Replacement wells
W21R and W26R were installed after soil excavation activities were completed.
b : New well installed in 2020.
Monitoring Plan - Table_02-01 .xlsx2022-VOC-Tbl02-01
-------
Table 2-1 (cont'd)
VOC Monitoring Plan Schedule - 2022
Abresch Site, Oakdale, MN
Well
Aquifer
Well Type
June
2022
Oct/Nov
2022
Area D (area where natural attenuation will be evaluated following shutdown)
W25
Upper Alluvium
Monitoring
WL
List 1&2, WL
W30
Upper Alluvium
Monitoring
WL
List 1&2, WL
W31
Upper Alluvium
Monitoring
WL
List 1&2, WL
W32
Upper Alluvium
Monitoring
WL
WL
W215
Upper Alluvium
Monitoring
WL
List 1&2, WL
W2003
Lower Alluvium
Monitoring
WL
List 1&2, WL
W2005
Lower Alluvium
Monitoring
WL
WL
W2008
Lower Alluvium
Monitoring
WL
List 1&2, WL
W2010
Lower Alluvium
Monitoring
WL
WL
W515b
Upper Alluvium
Monitoring
WL
WL
W5l6b
Lower Alluvium
Monitoring
WL
WL
Plalle\ ilk'
W3
Platteville
Monitoring
WL
List 1&2, WL
W8
Platteville
Monitoring
WL
List 1&2, WL
W80*
Platteville
Monitoring
N/A
List 1
W6102
Platteville
Monitoring
WL
List 1, WL
W6104
Platteville
Monitoring
WL
WL
PL41
Platteville
Monitoring
WL
WL
W503b
Platteville
Monitoring
WL
WL
W506b
Platteville
Monitoring
WL
WL
W6104Rb
Platteville
Monitoring
WL
WL
Si Peler
W6201
St Peter
Monitoring
WL
WL
SP42
St Peter
Monitoring
WL
WL
List 1 : VOCs including: Acetone, Benzene, 1,1-Dichloroethane, 1,2-Dichloroethane, 1,1-Dichloroethylene, cis &trans-l,2-
Dichloroethylene, ethylbenzene, isopropyl ether, methyl ethyl ketone, and tetrahydrofuran
List 2: VOCs including: isopropyl alcohol, 2-butyl alcohol, 4-Methyl-2-pentanol, methylene chloride, methyl isobutyl ketone, toluene, and
total xylenes.
WL: Water Level Measurement
b : New well installed in 2020.
* Private well. Water level not applicable. Sampling performed from outside tap.
Monitoring Plan - Table_02-01 .xlsx2022-VOC-Tbl02-01
-------
Table 2-1 (cont'd)
VOC Monitoring Plan Schedule - 2022
Abresch Site, Oakdale, MN
Well
Aquifer
Well Type
June
2022
Oct/Nov
2022
Oilier Wells
PW10
Surficial Alluvium Units
Pumpout
WL
List 1&2, WL
W33
Upper Alluvium
Monitoring
WL
WL
W203
Upper Alluvium
Monitoring
WL
WL
W205
Upper Alluvium
Monitoring
WL
WL
W217
Upper Alluvium
Monitoring
WL
WL
W2009
Lower Alluvium
Monitoring
WL
WL
APZ45
Upper Alluvium
Piezometer
WL
WL
APZ46
Upper Alluvium
Piezometer
WL
WL
APZ47
Upper Alluvium
Piezometer
WL
WL
APZ48
Upper Alluvium
Piezometer
WL
WL
APZ49
Upper Alluvium
Piezometer
WL
WL
APZ50
Upper Alluvium
Piezometer
WL
WL
GPPZ23
Lower Alluvium
Piezometer
WL
WL
PW14
Lower Alluvium
Pumpout
WL
WL
PW15
Lower Alluvium
Pumpout
WL
WL
PW16
Lower Alluvium
Pumpout
WL
WL
PW17
Lower Alluvium
Pumpout
WL
WL
PW18
Lower Alluvium
Pumpout
WL
WL
PW19
Lower Alluvium
Pumpout
WL
WL
PW20
Lower Alluvium
Pumpout
WL
WL
PW21
Lower Alluvium
Pumpout
WL
WL
PW22
Lower Alluvium
Pumpout
WL
WL
PW23
Lower Alluvium
Pumpout
WL
WL
PW24
Lower Alluvium
Pumpout
WL
WL
PW25
Lower Alluvium
Pumpout
WL
WL
PW26
Lower Alluvium
Pumpout
WL
WL
RW37
Upper Alluvium
Monitoring
WL
WL
RW38
Lower Alluvium
Monitoring
WL
WL
List 1 : VOCs including: Acetone, Benzene, 1,1-Dichloroethane, 1,2-Dichloroethane, 1,1-Dichloroethylene, cis &trans-l,2-
Dichloroethylene, ethylbenzene, isopropyl ether, methyl ethyl ketone, and tetrahydrofuran
List 2: VOCs including: isopropyl alcohol, 2-butyl alcohol, 4-Methyl-2-pentanol, methylene chloride, methyl isobutyl ketone, toluene, and
total xylenes.
WL: Water Level Measurement
Monitoring Plan - Table_02-01 .xlsx2022-VOC-Tbl02-01
-------
Table 2-1 (cont'd)
VOC Monitoring Plan Schedule - 2022
Abresch Site, Oakdale, MN
Well
Aquifer
Well Type
June
2022
Oct/Nov
2022
Oilier \\ ills (conliniieri)
W501b
Upper Alluvium
Monitoring
WL
WL
W502b
Lower Alluvium
Monitoring
WL
WL
W504b
Upper Alluvium
Monitoring
WL
WL
W505b
Lower Alluvium
Monitoring
WL
WL
W507b
Upper Alluvium
Monitoring
WL
WL
W509b
Upper Alluvium
Monitoring
WL
WL
W510b
Lower Alluvium
Monitoring
WL
WL
W51 lb
Upper Alluvium
Monitoring
WL
WL
W513b
Upper Alluvium
Monitoring
WL
WL
W514b
Lower Alluvium
Monitoring
WL
WL
W518b
Lower Alluvium
Monitoring
WL
WL
W519b
Upper Alluvium
Monitoring
WL
WL
W522c
Upper Alluvium
Monitoring
NC
WL
WL: Water Level Measurement
b : New well installed in 2020.
c: New well installed in 2022.
NC: Not Constructed. Well constructed after June 2022 event.
Monitoring Plan - Table_02-01 .xlsx2022-VOC-Tbl02-01
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Restoring Resource Efficiency
3. GROUNDWATER MONITORING AND RESULTS
The VOC pumpout wells PW1, PW2, PW3, PW4, PW6, PW10 and PW11 were installed in
the upper and lower alluvium near areas where measurable levels of VOCs were detected in
groundwater following previous source area removal actions performed in the mid-1980s. As
shown on Figure 2-1, six of the pumpout wells are located just south of Highway 14 in the
north-central area of the Abresch Site. Pumpout well PW10 is located in the central (isthmus)
area of the Abresch Site. Operation of these pumpout wells has met the 1983 Consent Order
goals for plume containment and contaminant removal at the Abresch Site. Plume
containment involves both horizontal and vertical control by maintaining an inward hydraulic
gradient in the alluvium groundwater unit. This inward hydraulic gradient (both horizontally
and vertically) is maintained from areas where higher VOCs are present in groundwater,
towards the pumpout wells. In addition, an upward hydraulic gradient is maintained from the
Platteville groundwater to the alluvial groundwater units in the vicinity of the former
suspected VOC source areas. The groundwater monitoring program has consistently shown an
extensive area of drawdown in the upper and lower alluvium units around the VOC pumpout
system just south of Highway 14.
Another component of vertical containment involves the presence of lower confining units
(glacial till unit and the Decorah Shale), which restrict downward groundwater and
contaminant migration from the alluvium to the Platteville formation. These lower confining
units are present across most of the northern Abresch Site area as shown on Figure 3-1, and
the cross-section presented in Figure 3-2.
The following sections contain a discussion of the 2022 groundwater monitoring results.
3.1 GROUNDWATER ELEVATIONS
In June 2022 and October - November 2022, water levels were measured at 64 monitoring
well/piezometer and 23 pumpout well locations listed in Table 2-1. A water level
measurement was collected from new well W522 during the October - November 2022 event.
A table summarizing available well construction and other information for the Abresch Site
wells/piezometers is included in Appendix B. Semiannual groundwater level measurements
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Restoring Resource Efficiency
collected in 2022 from the groundwater monitoring wells, former pumpout wells, and
piezometers are presented in Table 3-1.
The groundwater levels were reviewed for compliance with the hydraulic gradient control
criteria described in the March 1985 "Final Groundwater Monitoring Plan" (Barr Engineering
Company, 1985). This plan specifies that the groundwater VOC pumpout system will be
operated to create a hydraulic gradient which would prevent groundwater where higher levels
of VOCs are present, from moving into the Platteville formation and contain lateral migration
in the surficial deposits.
In 2022, in the vicinity of the VOC groundwater pumpout system just south of Highway 14,
groundwater elevations in the lower alluvium were maintained at a level lower than those in
the underlying Platteville formation. Specifically, this differential is measured as the
difference in water levels between Platteville monitoring well W8 and lower alluvium
monitoring well W2012 (near Area B), and between Platteville monitoring well W3 and lower
alluvium monitoring well W2008 (near Area D). Figure 3-3 shows the difference in water
levels for 2022 compared to previous years. Figure 3-4 contains a hydrograph showing the
groundwater elevations of the same wells for multiple measurements taken from January 2016
through November 2022. The typical lower groundwater elevation in the lower alluvium
monitoring wells (W2008 and W2012) compared to the corresponding water levels in the
nearby Platteville formation monitoring wells (W3 and W8) verifies that an upward vertical
gradient exists near the pumpout system.
The differences in groundwater elevations between wells W2012 and W8 and W2008 and W3
have generally decreased over the past several years. This is due to the above normal
precipitation encountered over this period that has increased recharge to the upper and lower
alluvium at the Abresch Site increasing groundwater levels in these aquifers. Annual
precipitation levels have been significantly lower since peaking in 2019, which is reflected in
the relative increase in the difference in groundwater elevations between wells W2008 and
W3, a result of relatively lower recharge to the upper and lower alluvium aquifers. The
generalized direction of horizontal and vertical groundwater flow at the Abresch Site is
presented in Figure 3-2.
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Restoring Resource Efficiency
The groundwater elevation data collected from the network of wells/piezometers shown in
Table 3-1 are used to prepare groundwater elevation contour maps. These data are used to
construct semiannual groundwater elevation contour maps to assess the area of groundwater
capture induced by the groundwater pumpout system. Using these data, two groundwater
elevation contour maps, one for the upper alluvium aquifer and one for the lower alluvium
aquifer, were constructed for dates that site-wide depth-to-groundwater measurements were
recorded. A synoptic round of site-wide depth-to-groundwater measurements were collected
close to the date that the semiannual VOC groundwater sampling events were performed.
Upper alluvium aquifer monitor wells are screened primarily within the uppermost water-
bearing unit across the Abresch Site. The lower alluvium monitor wells are screened within
the more permeable strata just above the subcropping bedrock.
The groundwater elevation contour maps for the Abresch Site are constructed using KT3D
(Tonkin and Larson, 2002; Karanovic, Tonkin and Wilson, 2009), a computer software
program designed to contour groundwater elevation data while taking into account one or
more pumping centers. KT3D uses a log-linear kriging algorithm to create two-dimensional
groundwater contour maps with more tightly spaced groundwater elevation contours that are
inferred around pumping centers. KT3D calculates groundwater elevations in the vicinity of
pumping centers using a standard analytical method (Thiem analytical method) that
incorporates the hydraulic gradient in each alluvium unit. This approach (i.e., using KT3D)
results in a more representative groundwater elevation contour map and capture zones as
compared to including measurement of groundwater elevations in pumping wells that could
overestimate capture zones.
Figures 3-5 and 3-6 present groundwater elevation contours for the upper and lower alluvium
aquifers, respectively, based on water level data collected on June 28, 2022. Figures 3-7 and
3-8 contain the groundwater elevation contour maps for water level data collected on
November 21, 2022.
An examination of the groundwater elevation contours in Figures 3-5 through 3-8 reveals that
the groundwater pumpout system (PW1, PW2, PW3, PW4, PW6 and PW11) is consistently
creating a large cone of depression in both the upper and lower alluvium immediately south of
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Restoring Resource Efficiency
Highway 14 (north-central Abresch Site area). The long-term operation of the pumpout
system has dewatered a portion of the upper and lower alluvium in this area of the Abresch
Site, and induced groundwater to flow inward toward the pumpout wells from beyond the
limits of the former disposal area. In addition, higher yielding pumpout wells PW4, PW6 and
PW11 have created a significant cone of depression in the center of Abresch Site as shown in
Figures 3-5 through 3-8.
Pumpout well PW10 is located in the central (isthmus) area of the Abresch Site where the
upper and lower alluvium aquifers are comprised of low-permeability sediments. The
drawdown induced by pumpout well PW10 is much less than the pumpout wells to the north;
however, as shown in Figures 3-5 through 3-8, the combination of pumpout well PW10 and
pumpout wells PW19 through PW24, that were installed in 2008 to capture PFAS
concentrations, provide groundwater capture in this area of the Abresch Site.
The groundwater elevation contour maps also indicate that groundwater elevations are
primarily higher, and the cone of depression is not as pronounced, in the upper alluvium
compared to the lower alluvium. This is due to the lower permeability of the sediments
comprising the upper alluvium (as compared to the lower alluvium) that causes recharge from
precipitation and/or snow melt to accumulate in the upper alluvium. Recharge to the upper
alluvium was relatively the same in 2022 since there was only a slight increase in annual
precipitation from 2021, while total precipitation for 2022 was slightly below average for the
Abresch Site area (www.dnr.state.mn.us). While approximately 28.50 inches of precipitation
occurred in the Abresch Site area in 2021, approximately 29.24 inches of precipitation
occurred in 2022 compared to a long-term average annual precipitation of 29.98 inches per
year. The higher groundwater elevations in the upper alluvium compared to the lower
alluvium continue to create a downward hydraulic gradient that causes groundwater within
the upper alluvium aquifer to flow downward by gravity drainage into the lower alluvium
aquifer where it is ultimately captured by the pumpout well network.
3.2 GROUNDWATER QUALITY
Groundwater quality data are summarized in Table 3-2 through Table 3-6, and the laboratory
analytical data reports are included in Appendix C. The groundwater quality data are
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Restoring Resource Efficiency
discussed below for each hydrogeologic unit. In general, this discussion uses "total VOCs" or
"isopropyl ether" (IPE) as a basis for comparing groundwater quality over time and from well
to well. For most wells, IPE concentrations dominate the total VOC concentration. While no
Health Risk Limit (HRL) exists for IPE, the Minnesota Department of Health (MDH)
previously developed a Health Based Value (HBV) of 80 |ig/L for this VOC (MPCA
memorandum May 14, 2001). However, MDH did not include IPE when they established
updated groundwater HBVs in 2008 (MDH, 2008), or in updates to HBVs since 2008.
3.2.1 Upper and Lower Alluvium Units
VOC analytical results from the 2022 water quality monitoring of wells in the upper and
lower alluvium units are provided in Tables 3-2 through 3-6. Historical VOC groundwater
analytical data for 2006 through 2022 are included in Appendix D. The results from the VOC
analysis of upper and lower alluvium monitoring well samples indicated generally stable
water quality in 2022 when compared to the range of results from previous years (see
Appendix D). The upper and lower alluvium monitoring wells are grouped by the
groundwater monitoring areas established for the Abresch Site (see Figure 2-1) for discussion
purposes:
• Area B - Six pumpout wells are operational in Area B (PW1, PW2, PW3, PW4, PW6
and PW11). Area B is in the western portion of the Abresch Site, located near the
suspected gap in the Decorah Shale and lower till confining units (see Figures 2-1 and
3-1). Shallow groundwater quality in this area is characterized by the VOC
concentration trends in the extracted groundwater from the pumpout wells.
The 2022 VOC analytical results for the Area B pumpout wells are provided in Table
3-2. As shown in Table 3-2, the lowest total VOC concentrations in the pumpout wells
in 2022 is in well PW6, which is in the eastern part of Area B. Pumpout well PW2 has
the highest total VOC concentrations and is located in the western central portion of
Area B. Specifically, the IPE concentration for the annual (October-November 2022
event) groundwater sample from PW2 was the historically highest concentration since
2006. Historical total yearly averages of total VOC concentrations for all active
pumpout wells are shown in Table 3-7, and historical analytical data for individual
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Restoring Resource Efficiency
VOCs is provided in Table D-l in Appendix D. Review of these data indicates total
VOC concentrations fluctuate over time and 2022 total VOC concentrations are lower
than historical concentrations. The long-term trends are generally stable or declining.
• Area C - This area is located on the eastern portion of the Abresch Site and extends
both north and south of Highway 14. As described in Section 1 and the May 2003
QAPP (Barr, 2003), pumping was discontinued at wells PW7, PW8 and PW9 in May
2003 and the wells were retained for monitoring. Pumpout wells PW7, PW8 and PW9
were shut down since they removed minimal VOC mass and the VOC concentrations
declined significantly during the operation of these wells. In addition, groundwater
elevations collected in this area after the shutdown of these wells indicate that
groundwater is captured by the remaining wells in the pumpout system. As shown on
Figures 3-5 through 3-8, the groundwater elevation contour maps for 2022 indicate
that groundwater in Area C is being captured by either pumpout well PW26 north of
Highway 14, or pumpout wells PW4, PW6 and PW11 located south of Highway 14.
Two Area C monitoring wells, W21 and W26, were abandoned prior to the 2011 soil
excavation activities completed in accordance with the MPCA-approved RD/RA Plan.
These monitoring wells were reinstalled immediately adjacent to their previous
locations following the RD/RA activities and are now designated as monitoring wells
W21R and W26R. Monitoring well W21R continues to be used for water level
measurements in the VOC program. Water quality in Area C is monitored
semiannually at former alluvium pumpout wells PW7, PW8, PW9 (Table 3-3) and
monitoring well W26R (Table 3-4). Former pumpout wells PW7, PW8 and PW9 are
completed across the upper and lower alluvium units, while monitoring well W26R is
completed in the upper alluvium.
As shown in Table 3-3, for those wells south of Highway 14, total VOCs remain
lowest in former pumpout well PW9, which is east of former pumpout wells PW7 and
PW8. A comparison of the 2022 VOC analytical data to the historical VOC data
presented in Table D-2 in Appendix D for former pumpout wells PW7 and PW9
indicates that the 2022 VOC results are within historical values. While other VOC
concentrations in former pumpout well PW8 were within historical ranges, the IPE
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Restoring Resource Efficiency
concentration in the annual (October-November 2022 event) groundwater sample from
PW8 was the historically highest concentration since 2006. This well will be sampled
in 2023 to monitor for possible long term trends of VOCs in this area.
Monitoring well W26R is located within an area where soil remediation activities
were completed in 2011. These remedial activities were part of the PFAS program at
the Site and included the removal of 27,951 cubic yards of soil disposed at a permitted
facility off-site. In addition, nearby pumpout well PW26 was installed to remediate
groundwater in this area. Review of the VOC analytical results for monitoring well
W26R presented in Table D-3 of Appendix D indicates a significant decline in VOC
concentrations (e.g., benzene and IPE) over time. The June 2022 total VOC
concentrations for well W26R were less than 6 |ig/L in the base sample and were less
than 8 |ig/L in the duplicate sample (IPE and total xylenes). No VOCs were detected
above laboratory reporting limits for well W26R in November 2022 (Table 3-4). The
soil removal remedial actions near this well and operation of pumpout well PW26
have been effective in reducing VOC concentrations in this area of the Abresch Site.
• Area D - Based on groundwater monitoring of VOCs performed since 2003, Area D
has not been affected by the cessation of pumping in Area C (former pumpout wells
PW7, PW8 and PW9). In accordance with the Groundwater Sampling Plan, water
quality samples were collected in 2022 from upper alluvium monitoring wells W25,
W31 and W215 (Table 2-1), W30 was dry and could not be sampled. Total VOC
concentrations were non-detect (ND) in upper alluvium monitoring wells W31 and
W215, and 53 |ig/L in well W25 (Table 3-4). It is noted the IPE concentration of 53
|ig/L in W25 was reported by the analytical laboratory with a 'vl' qualifier, indicating
the concentration may have had a high bias. Overall, the analytical results indicate that
an ongoing source for VOCs is either not present or minimal in the upper alluvium in
the areas monitored by these wells. Groundwater analytical results for upper alluvium
monitoring wells W25, W31 and W215 were generally comparable to historical
analytical results (see historical data in Table D-3 in Appendix D), except W25 where
IPE was detected at a historically high concentration, but only slightly higher than its
concentration in 2021. W25 will be sampled in 2023 to verify these results.
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Groundwater samples were collected for VOC analyses in 2022 from lower alluvium
monitoring wells W2003 and W2008. As shown on Figure 2-1, monitoring wells
W2003 and W2008 are installed adjacent to one another with total depths of 52 and 62
feet below ground surface (ft bgs), respectively. As shown in Table 3-5, the IPE
concentration in shallower monitoring well W2003 (181 |ig/L) is lower compared to
deeper monitoring well W2008 (192 |ig/L) in 2022, while the duplicate sample for
W2008 had an IPE concentration of 607 |ig/L.
VOC concentrations in these lower alluvium wells fluctuate while the long-term trend
in VOC concentrations is trending slightly upward, with relatively higher VOC
concentrations detected in W2008 from the October-November 2022 event (see
historical data in Table D-4 in Appendix D). Groundwater elevation data collected at
the Abresch Site indicate that all wells within Area D are consistently within the
capture zone of the pumpout well network.
• Isthmus Area - Pumpout well PW10 is located in an area defined as the "isthmus
area". As shown in Table 3-2, total VOC concentration of 3,612 |ig/L for the
November 2022 sample was detected for pumpout well PW10. The long-term total
VOC trend in pumpout well PW10 is declining as shown in the historical data
presented in Table 3-7 for total VOCs. Table D-l in Appendix D provides historical
analytical data for individual VOCs.
Although pumpout well PW10 does not yield significant quantities of groundwater,
the addition of nearby pumpout wells PW19 through PW24 to the recovery well
network in, and adjacent to, the "isthmus area" is contributing to the decline in VOC
concentrations in pumpout well PW10.
3.2.2 Platteville Formation
Earlier investigations have shown that IPE is the most mobile VOC in the groundwater
beneath the Abresch Site, and that IPE migrated downward to the Platteville Formation prior
to implementation of the VOC pumpout system in 1985. Groundwater analytical results
revealed that IPE migrated southwest and northeast from the Abresch Site through
2023-12-20_2022 OKMN Annual VOC Report
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Restoring Resource Efficiency
preferential flow paths in the Platteville Formation. Beginning in 1985, the pumpout system
contained the source of the VOCs and the water quality in the Platteville has improved
significantly (i.e., lower VOC concentrations and reduced lateral extent of plume).
The purpose of monitoring the Platteville Formation is two-fold. One is to monitor the
concentration and extent of the VOCs (mainly IPE), and the second is to determine the
effectiveness of the VOC pumpout system in preventing vertical migration of shallow
groundwater containing VOCs to the Platteville Formation. As specified in Section A9.1.5 of
the May 2003 QAPP (Barr Engineering Company, 2003), Decision Rule 6 was established as
part of the on-going evaluation of the 2003 pumpout system modifications. The decision rule
specified that the VOC pumpout system will continue to be reviewed to verify (1) an upward
vertical gradient between the Platteville and the alluvium aquifer near the pumpout system,
and (2) stable or improving water quality trends in the Platteville monitoring wells.
Groundwater elevation data and vertical hydraulic gradients are summarized in Section 3.1
and Figures 3-3 and 3-4, and the water quality results for wells completed in the Platteville
formation are discussed below.
The first part of the decision rule continues to be verified by Abresch Site groundwater
elevation data that indicate an upward hydraulic gradient between the Platteville formation
and lower alluvium monitoring wells (see Section 3.1 and Figure 3-3). The second part of the
decision rule indicates that additional effort may be necessary if the observed VOC
concentrations from two consecutive sampling events exceed the QAPP goal at either well
W80 or W6102, which represent the critical monitoring locations for IPE concentrations in
the Platteville formation. That decision rule was established around the MDH's HRLs and
HBVs in 2003 because it was thought that the only detectable VOC present (i.e., IPE) had
been less than its corresponding HBV for four of the previous five years of monitoring events
(1998 to 2002), so it was a suitable goal to compare against. As discussed in the 2006 annual
report (Barr Engineering Company, 2007), this was in fact not correct; the IPE concentrations
in W6102 have generally been above the 2001 HBV of 80 |ig/L since 1999. It should be noted
that, as discussed in Section 3.2, the MDH did not include IPE when they established their
updated groundwater values table in 2008 (MDH, 2008).
2023-12-20_2022 OKMN Annual VOC Report
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Restoring Resource Efficiency
In 2022, water quality samples were collected from Platteville monitoring wells W3, W8,
W6102, and agricultural/irrigation well W80. Table 3-6 contains a summary of the water
quality results from these four wells and Table D-5 (Appendix D) presents historical results.
The IPE concentration (288 |ig/L) in 2022 in well W3 is within historical ranges (Table D-5)
and historical IPE concentrations for well W3 have fluctuated over time. The November 2022
IPE concentration in monitoring well W8 was 14.2 |ig/L, which is the historically lowest IPE
concentration in well W8 since 2006 (Table D-5). As discussed in Section 3.1, the vertical
hydraulic gradient in the vicinity of well W8 is upward due to the operation of nearby
pumpout wells PW1, PW2 and PW3.
Figure 3-9 presents the historical IPE concentration trend in wells W80 and W6102. The
analytical results show that IPE levels in agricultural well W80 were non-detect from 2008
through 2017, and from 2020 through 2022. A groundwater sample could not be collected
from agricultural well W80 in 2018 or 2019 since permission from the resident for access to
this well could not be obtained. The 2022 IPE concentration in well W6102 was 83.1 |ig/L
(Table 3-6) representing a significant decrease from the 2021 IPE concentration in this well.
Figure 3-9 shows the IPE concentration from the 2022 sample is well within historical ranges,
and concentrations in monitoring well W6102 have fluctuated above and below 100 |ig/L.
The favorable downward concentration trend in well W80 was part of the basis for the 2003
VOC pumpout system modifications and the current data does not change the conclusion that
the pumpout system continues to be effective at restricting further IPE releases to the
Platteville from shallow groundwater source areas.
3.2.3 St. Peter Sandstone
As specified in the Sampling Plan, semiannual depth-to-groundwater measurements were
collected in 2022 in St. Peter Sandstone monitoring wells W6201 and SP42. Well W6201 is
sampled on a quadrennial basis with the next sampling event scheduled for 2023. Historical
VOC groundwater analytical data for wells completed in the St. Peter Sandstone are provided
in Table D-6 in Appendix D.
2023-12-20_2022 OKMN Annual VOC Report
3-10
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Abresch Site
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-------
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Hydrograph of Platteville (W3 and W8) and Lower Alluvium Wells (W2008 and W2012)
January 2016 - November 2022
Abresch Site, Oakdale, MN
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HydroGRAPH-QRY_10-W3-W8-W2008-W2012-OKMN-2022.xls
Fig3-4-2022(VOC_RPT)
-------
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* = Pump off
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/
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0 100 200 300 400 500
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Figure 3-5
Groundwater Elevation
Contour Map
Upper Alluvium Aquifer
28 June 2022
Abresch Site
Oakdale, Minnesota
2021-060 3-0 K-U A. srf
-------
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PW22
1(983.44)1
IPW20!
3(989.75)1
PW25!
B(984.36)|
PW21
M988.24)!
RW38
||V517|
W997_52»
PW2
1(993.0
Pumpout Well Flow Rates
HIGHWAY 14 (former Highway
PW11 A *1 91 in msrnm
¦ S977.e2fe(f *'
$>.a:«2r^Q80 |KW2008.VtVlMgi 1
,J(98?_19)jJ-'
I •»
Flow
Well ID
Rate
PW1
0.4
PW2
0.04
PW3
0.9
PW4
5.6
PW6
4.2
PW10
0.01
PW11
3.9
PW14
2.7
PW15
11.2
PW16
10.0
PW17
6.6
PW18
8.0
PW19
8.2
PW20
0.0*
PW21
3.0
PW22
1.0
PW23
0.6
PW24
0.1
PW25
1.6
PW26
0.9
. |
t ' I
•
PW14» • -
"( (975.89W U V I
I % ** ' I
Legend
Pumpout Well Location (PW)
O Monitoring Well/Piezometer
Location (W/APZ)
1 Groundwater Elevation Contour
(988.32) Monitoring Well/Piezometer
Groundwater Elevation (ft MSL)
(985.18) Pumpout Well
Groundwater Elevation (ft MSL)
(NA) j^ot Available
Intermittent Stream
(Approximate location)
/>
Groundwater Flow Path
Note: Groundwater elevations for pumpout wells are posted but not used in preparing contours. Groundwater elevation
contours are inferred around pumping centers.
* - Pump off
N
S
0 100-200 300 400 500
Feet
Figure 3-6
Groundwater Elevation
Contour Map
Lower Alluvium Aquifer
28 June 2022
Abresch Site
Oakdale, Minnesota
2021 -072 0-OKMN-LAsrf
-------
^PZ-44
(1005.68)C
1(1003.48)1
|W522|
(1003.96)
(985.14)'
PW26
HIGHWAY 14 (former Highway 5)
W23
(993.39)
W217
[992.08)
'*
-------
PW26
(985.141
W2006
i;. / pw6 ^/fr
pwn .. •
(987,12)
^ m0°.3
PW23
PW15
PW16 (978.66) \
(984.08)
PW24
(981.601
W502
,(987.24)
W510
(987.98);;- ¦
PW10
1(990.22):'
PW18
(985.56)
PW17
1(978.11);
PW22
PW20
W505
¦ • .*(986.93)
PW25
<((985.94)
PW21
(987.43)
RW38
1988.59)
HIGHWAY 14 (former Highway 5)
W516
[389.73
200S
989.13
Pumpout Well Flow Rates
Flow
Well ID
Rate fcmmt
PW1
1.04
PW2
1.11
PW3
0.0*
PW4
4.0
PW6
5.6
PW10
0.12
PW11
4.09
PW14
3.1
PW15
10.3
PW16
7.4
PW17
5.3
PW18
5.8
PW19
3.9
PW20
2.77
PW21
2.5
PW22
0.85
PW23
0.71
PW24
0.08
PW25
0.36
PW26
4.88
ft' *¦
¦—gggg
r- . ¦
V514
!;(988.35):
Legend
Pumpout Well Location (PW)
O Monitoring Well/Piezometer
Location (W/APZ)
¦ Groundwater Elevation Contour
(987.24) Monitoring Well/Piezometer
Groundwater Elevation (ft MSL)
(976.19) Pumpout Well
Groundwater Elevation (ft MSL)
(NA) Not Available
Intermittent Stream
(Approximate location)
/
Groundwater Flow Path
Note: Groundwater elevations for pumpout wells are posted but not used in preparing contours. Groundwater elevation
contours are inferred around pumping centers.
* = Pump off
0 100 200 300 400 500
Feet
Figure 3-8
Groundwater Elevation
Contour Map
Lower Alluvium Aquifer
21 November 2022
Abresch Site
Oakdale, Minnesota
2021-0720-OKM N-LA. srf
-------
Figure 3-9
Isopropyl Ether Concentration Trends in
Platteville Wells W80 and W6102
Abresch Site
NOTE: Non-detects are
presented at 1/2 the reporting
limit. A sample could not be
collected from W80 in 2018.
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx
Fig-03-13-w80-w6102
Date
• Well W80 — H- - Well W6102 MDH HBV IPE
-------
Table 3-1
2022 Depth-to-Groundwater and Groundwater Elevation Data
Abresch Site
Well ID
TOC Elevation
(ft MSL)
6/28/2022
11/21/2022
Groundwater Elevation Data
Depth-to-
Groundwater
(ft btoc)
Groundwater
Elevation
(ft MSL)
Depth-to-
Groundwater
(ft btoc)
Groundwater
Elevation
(ft MSL)
Minimum
Maximum
Range
Area A1 (Upgradient of pumpout wells)
W20
1016.64
11.38
1005.26
12.10
1004.54
1004.54
1005.26
0.72
W22
1019.44
18.50
1000.94
21.93
997.51
997.51
1000.94
3.43
W2007
1021.94
23.00
998.94
25.92
996.02
996.02
998.94
2.92
Area B1 (Area of pum
pout wells)
PW1
1017.09
31.78
985.31
70.27
946.82
946.82
985.31
38.49
PW2
1021.51
28.43
993.08
31.80
989.71
989.71
993.08
3.37
PW3
1018.66
63.85
954.81
30.80
987.86
954.81
987.86
33.05
PW4
1017.23
67.30
949.93
67.35
949.88
949.88
949.93
0.05
PW6
1003.75
28.83
974.92
39.75
964.00
964.00
974.92
10.92
PW11
1006.12
28.30
977.82
19.00
987.12
977.82
987.12
9.30
W23
1005.44
8.66
996.78
12.05
993.39
993.39
996.78
3.39
W28
1012.39
15.25
997.14
19.14
993.25
993.25
997.14
3.89
W29
1016.97
20.00
996.97
23.77
993.20
993.20
996.97
3.77
W36
1016.87
17.77
999.10
24.36
992.51
992.51
999.10
6.59
W2001
1007.18
12.43
994.75
15.71
991.47
991.47
994.75
3.28
W2006
1007.32
14.20
993.12
18.93
988.39
988.39
993.12
4.73
W2012
1016.29
24.56
991.73
26.77
989.52
989.52
991.73
2.21
Area C1 (Upgradient of pumpout wells that were shut off in 2003)
APZ44
1011.76
5.57
1006.19
6.08
1005.68
1005.68
1006.19
0.51
PW07
1007.75
13.70
994.05
18.70
989.05
989.05
994.05
5.00
PW08
1007.64
14.45
993.19
19.64
988.00
988.00
993.19
5.19
PW09
1005.59
11.20
994.39
15.46
990.13
990.13
994.39
4.26
W21R
1017.48
11.73
1005.75
14.00
1003.48
1003.48
1005.75
2.27
W26R
1010.89
8.61
1002.28
12.83
998.06
998.06
1002.28
4.22
W517a
1013.13
15.61
997.52
20.64
992.49
992.49
997.52
5.03
Area D1
W25
1000.37
7.11
993.26
8.45
991.92
991.92
993.26
1.34
W30
1006.93
13.84
993.09
-
-
993.09
993.09
0.00
W31
999.91
7.53
992.38
7.90
992.01
992.01
992.38
0.37
W32
1003.09
5.76
997.33
8.78
994.31
994.31
997.33
3.02
W215
1007.30
14.28
993.02
15.52
991.78
991.78
993.02
1.24
W515 a
1008.47
14.56
993.91
17.72
990.75
990.75
993.91
3.16
W516 a
1008.48
17.33
991.15
18.75
989.73
989.73
991.15
1.42
W2003
1000.90
18.70
982.20
23.50
977.40
977.40
982.20
4.80
W2005
1007.47
16.85
990.62
18.34
989.13
989.13
990.62
1.49
W2008
1001.42
19.23
982.19
24.05
977.37
977.37
982.19
4.82
W2010
1006.99
16.82
990.17
18.15
988.84
988.84
990.17
1.33
Platteville Monitoring
Wells
PL41
1003.74
22.60
981.14
24.11
979.63
979.63
981.14
1.51
W3
1003.05
13.10
989.95
14.56
988.49
988.49
989.95
1.46
W8
1015.50
23.76
991.74
25.11
990.39
990.39
991.74
1.35
W503 a
995.08
5.36
989.72
6.80
988.28
988.28
989.72
1.44
W506 a
1002.96
14.14
988.82
15.33
987.63
987.63
988.82
1.19
W6102
992.70
17.94
974.76
18.50
974.20
974.20
974.76
0.56
W6104
1001.23
35.98
965.25
37.06
964.17
964.17
965.25
1.08
W6104R a
1003.19
37.55
965.64
38.65
964.54
964.54
965.64
1.10
St, #ej®rixiaf]3if r!ni»
SP42
1004.34 II 111.72
892.62 || 111.90
892.44
892.44
892.62
0.18
W6201
991.23 || 108.28
882.95 || 108.24
882.99
882.95
882.99
0.04
ft MSL - feet above mean sea level,
ft btoc - feet below top of casing.
'Areas A, B, C and D shown on Figure 2-1.
a - New well installed in 2020.
- - No data available, well dry
Tbl-03-01_2022-OKMN-GWEIev-REV1 .xlsx;
Tbl-3-01 --2022-RPT_Tbl
-------
mmm
Table 3-1 (cont'd)
2022 Depth-to-Groundwater and Groundwater Elevation Data
Abresch Site
6/28/2022
11/21/2022
Groundwater Elevation Data
Depth-to-
Groundwater
Depth-to-
Groundwater
TOC Elevation
Groundwater
Elevation
Groundwater
Elevation
Well ID
(ft MSL)
(ft btoc)
(ft MSL)
(ft btoc)
(ft MSL)
Minimum
Maximum
Range
Other Wells
APZ45
995.52
6.90
988.62
7.00
988.52
988.52
988.62
0.10
APZ46
998.57
7.64
990.93
9.55
989.02
989.02
990.93
1.91
APZ47
1004.63
13.13
991.50
14.40
990.23
990.23
991.50
1.27
APZ48
1000.02
7.94
992.08
18.90
981.12
981.12
992.08
10.96
APZ49
999.25
5.99
993.26
7.36
991.89
991.89
993.26
1.37
APZ50
1004.65
11.70
992.95
13.85
990.80
990.80
992.95
2.15
GPPZ23
998.32
7.45
990.87
-
-
990.87
990.87
0.00
PW10
1000.37
8.77
991.60
10.15
990.22
990.22
991.60
1.38
PW14
995.40
19.51
975.89
19.21
976.19
975.89
976.19
0.30
PW15
995.60
15.15
980.45
16.94
978.66
978.66
980.45
1.79
PW16
996.18
11.00
985.18
12.10
984.08
984.08
985.18
1.10
PW17
996.75
17.90
978.85
18.64
978.11
978.11
978.85
0.74
PW18
996.86
10.20
986.66
11.30
985.56
985.56
986.66
1.10
PW19
1000.53
18.67
981.86
17.22
983.31
981.86
983.31
1.45
PW20
1000.10
10.35
989.75
34.48
965.62
965.62
989.75
24.13
PW21
998.41
10.17
988.24
10.98
987.43
987.43
988.24
0.81
PW22
997.81
14.37
983.44
17.35
980.46
980.46
983.44
2.98
PW23
999.81
32.38
967.43
50.20
949.61
949.61
967.43
17.82
PW24
999.10
30.97
968.13
17.50
981.60
968.13
981.60
13.47
PW25
1003.21
18.85
984.36
17.27
985.94
984.36
985.94
1.58
PW26
1011.25
17.05
994.20
26.11
985.14
985.14
994.20
9.06
RW37
1005.03
10.82
994.21
14.38
990.65
990.65
994.21
3.56
RW38
1004.11
13.83
990.28
15.52
988.59
988.59
990.28
1.69
W33
1001.89
10.78
991.11
11.59
990.30
990.30
991.11
0.81
W203
1004.79
8.40
996.39
12.71
992.08
992.08
996.39
4.31
W205
997.79
8.32
989.47
8.88
988.91
988.91
989.47
0.56
W217
1018.58
14.36
1004.22
15.55
1003.03
1003.03
1004.22
1.19
W501 *
995.21
5.40
989.81
6.13
989.08
989.08
989.81
0.73
W502 *
994.83
6.51
988.32
7.59
987.24
987.24
988.32
1.08
W504 *
1002.82
11.81
991.01
13.28
989.54
989.54
991.01
1.47
W505 a
1003.28
14.22
989.06
16.35
986.93
986.93
989.06
2.13
W507 a
998.93
6.93
992.00
7.80
991.13
991.13
992.00
0.87
W509 *
998.47
6.24
992.23
7.05
991.42
991.42
992.23
0.81
W510 *
998.38
9.10
989.28
10.40
987.98
987.98
989.28
1.30
W511a
996.75
6.55
990.20
6.62
990.13
990.13
990.20
0.07
W513'
1001.11
9.26
991.85
9.95
991.16
991.16
991.85
0.69
W514'
1001.54
12.09
989.45
13.19
988.35
988.35
989.45
1.10
W518'
998.77
9.52
989.25
10.79
987.98
987.98
989.25
1.27
W519'
1001.46
10.61
990.85
11.53
989.93
989.93
990.85
0.92
W521'
1003.47
12.17
991.30
13.98
989.49
989.49
991.30
1.81
W522 b
1011.08
-
-
7.12
1003.96
1003.96
1003.96
0.00
W2009
1001.33
10.47
990.86
11.45
989.88
989.88
990.86
0.98
ft MSL - feet above mean sea level,
ft btoc - feet below top of casing.
NA - Not Applicable, anamolous reading.
a - New well installed in 2020.
D - New well installed in 2022.
- - No data available.
Tbl-03-01_2022-OKMN-GWEIev-REV1 .xlsx;
Tbl-3-01 --2022-RPT_Tbl
-------
Table 3-2
2022 Groundwater VOC Analytical Data
VOC Pumpout Wells
Abresch Site
Sample Location:
PW1
PW2
PW3
PW4
PW6
PW10
PW11
Sample Date:
11/1/2022
11/1/2022
11/1/2022
11/1/2022
11/1/2022
11/1/2022
11/1/2022
Sample Code:
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
ND v1
5610 v1
ND v1
ND v1
ND v1
ND
ND v1
Benzene
28.9
ND
385
161
21.6
81.3
64.1
1,1-Dichloroethane
ND
ND
ND
ND
ND
ND
ND
1,2-Dichloroethane
ND
ND
ND
ND
ND
ND
ND
1,1-Dichloroethylene
ND
ND
ND
ND
ND
ND
ND
1,2-Dichloroethylene, cis
ND
ND
ND
ND
ND
ND
ND
1,2-Dichloroethylene, trans
ND
ND
ND
ND
ND
ND
ND
Ethyl benzene
ND
ND
ND
ND
ND
ND
ND
Isopropyl ether
2800
13700
14200
14000
2400
3430 v1
3760
Methyl ethyl ketone
ND
4390
ND
ND
ND
ND
ND
Tetrahydrofuran
ND
ND
ND
ND
ND
ND
ND
List 2 VOCs (jig/L)
Isopropyl alcohol
ND
ND
ND
ND
ND
ND
ND
2-Butyl alcohol
ND
ND
ND
ND
ND
ND
ND
4-Methyl-2-pentanol
ND
ND
ND
ND
ND
ND
ND
Methylene chloride
ND
ND
ND
ND
ND
ND
ND
Methyl isobutyl ketone
ND
ND
ND
ND
ND
ND
ND
Toluene
ND
145
ND
152
10.0
33.9
ND
Xylenes, total
ND
ND
ND
ND
ND
66.7
ND
Total VOCs Qig/L)
2829
23845
14585
14313
2432
3612
3824
ND = Not detected.
0 = Primary Sample.
Total VOCs: Includes J values; ND treated as 0.0.
sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Tbl-03-02 thru 03-06_2022_OKMN-VOC-REV2023-01-09.xlsx
Tbl-3-2(ND)
-------
Table 3-3
2022 Groundwater VOC Analytical Data
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW7
PW7
PW8
PW8
PW9
PW9
Sample Date:
6/16/2022
10/31/2022
6/15/2022
10/31/2022
6/15/2022
10/31/2022
Sample Code:
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
ND
ND v1
ND
ND v1
ND
ND v1
Benzene
298
124
746
836
17.6
1.3
1,1-Dichloroethane
ND
ND
ND
ND
7.03
ND
1,2-Dichloroethane
ND
ND
ND
ND
23.6
2.3
1,1-Dichloroethylene
ND R1
ND
ND R1
ND
ND R1
ND
1,2-Dichloroethylene, cis
210
ND
ND
ND
24.2
1.0
1,2-Dichloroethylene, trans
ND
ND
ND
ND
ND
ND
Ethyl benzene
650
92.9
ND
ND
3.48
ND
Isopropyl ether
1860
3310
14000 E
19100
420 E
19.2
Methyl ethyl ketone
ND
ND
ND
ND
ND
ND
Tetrahydrofuran
ND
ND
ND
ND
ND
ND
List 2 VOCs (jig/L)
Isopropyl alcohol
1260 C5
ND
251 C5
ND
ND
ND
2-Butyl alcohol
ND
ND
ND
ND
ND
ND
4-Methyl-2-pentanol
ND
ND
ND
ND
ND
ND
Methylene chloride
ND L0
ND
ND L0
ND
ND L0
ND
Methyl isobutyl ketone
ND
ND
ND
ND
ND
ND
Toluene
4760
ND
ND
ND
ND
ND
Xylenes, total
3070
2110
506
676
6.54
ND
Total VOCs (jig/L)
12108
5637
15503
20612
502
24
ND = Not detected
0 = Primary Sample
Total VOCs: Includes J values; ND treated as 0.0.
sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
C5 = The reported concentration is an estimate. The continuing calibration standard associated with this data responded high. Data is likely to show a high bias.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
E = Analyte concentration exceeded the calibration range. The reported result is estimated.
Tbl-03-02 thru 03-06_2022_OKMN-VOC-REV2023-01-09.xlsx
Tbl-3-3(ND)
-------
Table 3-4
2022 Groundwater VOC Analytical Data
Upper Alluvium Monitoring Wells
Abresch Site
Sample Location:
W25
W26R
W26R
W31
W215
Sample Date:
11/2/2022
6/16/2022
6/16/2022
11/1/2022
11/1/2022
11/1/2022
11/2/2022
Sample Code:
0
0
DB
0
DB
0
0
List 1 VOCs (jig/L)
Acetone
ND
ND
ND
ND v1
ND v1
ND
ND
Benzene
ND
ND
ND
ND
ND
ND
ND
1,1-Dichloroethane
ND
ND
ND
ND
ND
ND
ND
1,2-Dichloroethane
ND
ND
ND
ND
ND
ND
ND
1,1-Dichloroethylene
ND
ND R1
ND R1
ND
ND
ND
ND
1,2-Dichloroethylene, cis
ND
ND
ND
ND
ND
ND
ND
1,2-Dichloroethylene, trans
ND
ND
ND
ND
ND
ND
ND
Ethyl benzene
ND
ND
ND
ND
ND
ND
ND
Isopropyl ether
53.0 v1
5.65
5.98
ND
ND
ND v1
ND v1
Methyl ethyl ketone
ND
ND
ND
ND
ND
ND
ND
Tetrahydrofuran
ND
ND
ND
ND
ND
ND
ND
List 2 VOCs (jig/L)
Isopropyl alcohol
ND
ND
ND
ND
ND
ND
ND
2-Butyl alcohol
ND
ND
ND
ND
ND
ND
ND
4-Methyl-2-pentanol
ND
ND
ND
ND
ND
ND
ND
Methylene chloride
ND
ND L0
ND L0
ND
ND
ND
ND
Methyl isobutyl ketone
ND
ND
ND
ND
ND
ND
ND
Toluene
ND
ND
1.23
ND
ND
ND
ND
Xylenes, total
ND
ND
ND
ND
ND
ND
ND
Total VOCs Qig/L)
53
5.7
7.2
ND
ND
ND
ND
ND = Not detected
0 = Primary Sample
DB = Duplicate Sample
Total VOCs: Includes J values; ND treated as 0.0.
sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
Tbl-03-02 thru 03-06_2022_OKMN-VOC-REV2023-01-09.xlsx
Tbl-3-4(ND)
-------
Table 3-5
2022 Groundwater VOC Analytical Data
Lower Alluvium Monitoring Wells
Abresch Site
Sample Location:
W2003
W2008
Sample Date:
10/31/2022
10/31/2022
Sample Code:
0
0
DB
List 1 VOCs (jig/L)
Acetone
ND
ND
ND
Benzene
ND
ND
ND
1,1-Dichloroethane
ND
ND
ND
1,2-Dichloroethane
ND
ND
ND
1,1-Dichloroethylene
ND
ND
ND
1,2-Dichloroethylene, cis
ND
ND
ND
1,2-Dichloroethylene, trans
ND
ND
ND
Ethyl benzene
ND
ND
ND
Isopropyl ether
181 v1
192 v1
607 v1
Methyl ethyl ketone
ND
ND
ND
Tetrahydrofuran
ND
ND
ND
List 2 VOCs (jig/L)
Isopropyl alcohol
ND
ND
ND
2-Butyl alcohol
ND
ND
ND
4-Methyl-2-pentanol
ND
ND
ND
Methylene chloride
ND
ND
ND
Methyl isobutyl ketone
ND
ND
ND
Toluene
ND
ND
ND
Xylenes, total
ND
ND
ND
Total VOCs Qig/L)
181
400
ND = Not detected
0 = Primary Sample
DB = Duplicate Sample
sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Tbl-03-02 thru 03-06_2022_OKMN-VOC-REV2023-01-09.xlsx
Tbl-3-5(ND)
-------
Table 3-6
2022 Groundwater VOC Analytical Data
Platteville Monitoring Wells
Abresch Site
Sample Location:
W3
W8
W80
W6102
Sample Date:
10/31/2022
11/1/2022
11/11/2022
11/3/2022
Sample Code:
0
0
0
0
List 1 VOCs (jig/L)
Acetone
ND
ND
ND
ND
Benzene
ND
ND
ND
ND
1,1-Dichloroethane
ND
ND
ND
ND
1,2-Dichloroethane
ND
ND
ND
ND
1,1-Dichloroethylene
ND
ND
ND
ND
1,2-Dichloroethylene, cis
ND
ND
ND
ND
1,2-Dichloroethylene, trans
ND
ND
ND
ND
Ethyl benzene
ND
ND
ND
ND
Isopropyl ether
288 v1
14.2 v1
ND
83.1 v1
Methyl ethyl ketone
ND
ND
ND
ND
Tetrahydrofuran
ND
ND
ND
ND
List 2 VOCs (jig/L)
Isopropyl alcohol
ND
ND
ND
ND
2-Butyl alcohol
ND
ND
ND
ND
4-Methyl-2-pentanol
ND
ND
ND
ND
Methylene chloride
ND
ND
ND
ND
Methyl isobutyl ketone
ND
ND
ND
ND
Toluene
ND
ND
ND
ND
Xylenes, total
ND
ND
ND
ND
Total VOCs Qig/L)
288
14
ND
83
ND = Not detected
0 = Primary Sample
Total VOCs: Includes J values; ND treated as 0.0
sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Tbl-03-02 thru 03-06_2022_OKMN-VOC-REV2023-01-09.xlsx
Tbl-3-6(ND)
-------
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
ES:
Table 3-7
Historical Yearly Averages of Total VOC Concentrations
Active Pumping Wells
Abresch Site
PW1
PW2
PW3
PW4
PW6
PW10
PW11
156
487
2000
136
32
1669
16
319
212
1445
253
85
768
60
344
377
2167
143
86
407
61
345
330
2400
110
37
237
31
270
433
3000
67
21
263
24
155
187
2850
62
17
295
16
122
153
2967
98
19
320
17
248
283
2700
127
140
373
149
186
247
1825
169
140
232
145
53
82
1633
68
12
51
15
86
83
1400
71
11
85
13
84
1467
66
9.3
43
11
83
87
1700
39
5.4
31
9.4
59
78
1303
26
5.7
21
6.3
44
67
396
30
6.3
17
8.7
50
61
927
48
13
21
9.0
36
51
1053
45
7.1
24
5.6
51
78
1300
46
7.0
26
5.9
25
40
730
27
4.2
23
8.2
27
38
300
35
3.6
21
6.0
19
41
434
34
1.9
16
6.9
6.0
41
349
33
2.2
15
6.9
5.6
49
358
29
2.1
17
7.1
7.4
33
239
21
1.6
22
6.2
12
31
251
30
2.6
14
7.3
7.2
50
48
19
1.4
12
7.3
5.5
38
83
21
1.3
5.9
5.9
12
23
59
21
3.8
11
5.4
8.2
43
19
15
3.6
7.5
6.5
8.3
42
21
2.7
7.1
4.4
10
11
42
16
3.3
3.2
16
12
10
31
16
3.5
6.2
7.2
11
20
23
34
4.1
6.6
6.9
6.5
5.4
14
11
3.4
3.9
3.3
8.5
24
22
2.3
4.3
3.4
10
11
24
14
2.7
2.8
4.7
12
8.7
27
18
2.6
4.9
8.5
2.8
24
15
14
2.4
3.6
3.8
All total VOC concentrations are listed in milligrams per liter (mg/L).
Post 2005 values were recalculated in 2014, by increasing the reported significant figures.
Tbl-03-07_2022-OKMN-VOC-Hist_Total_VOC_Conc(PW1-PW11)-REV2023-01-09.xlsx
Table 1
-------
Restoring Resource Efficiency
4. GROUNDWATER PUMPOUT TREATMENT SYSTEM OPERATION
AND MAINTENANCE
4.1 FLOW DATA
Groundwater pumpout well flow data for 2022 are summarized in Table 4-1. The total
average combined pumping rate for the VOC pumpout wells (PW1, PW2, PW3, PW4, PW6,
PW10 and PW11) in 2022 was approximately 14 gallons per minute (gpm), assuming a
continuous 24/7 operation during the year (i.e., total average flow rates were calculated using
total gallons pumped by the system divided by total minutes in calendar year 2022). The
combined average of the flow rates for all the VOC pumpout wells and additional pumpout
wells (PW14 through PW26) was approximately 65 gpm. Figure 4-1 shows the cumulative
gallons of groundwater removed for the pumpout system, since pumping began. This figure
also shows the cumulative gallons of VOCs removed as discussed in Section 4.4.
Approximately 7.2 million gallons of water were removed by the VOC groundwater pumpout
system in 2022. The total removed by the VOC pumpout system since startup in 1985 is
approximately 638 million gallons. The 2nd quarter 2022 flow totals were slightly lower
compared to other quarters in 2022. Flow totals for the other quarters of 2022 were
comparable to one another, with higher flow totals in the 1st and 4th quarters. Figures 4-2
through 4-8 show the pumping history for the individual VOC pumpout wells. The individual
monthly discharge reports for 2022 are submitted to the City of Oakdale and the MPCA and
are included in Appendix A.
4.2 WELL MAINTENANCE
Regular maintenance/rehabilitation was performed in 2022 as needed, to reduce the amounts
of biological growth, particulate matter, and iron that accumulate in the pumpout wells and
discharge lines to maximize total operational running times for each pumpout well. A
complete well maintenance/rehabilitation program was performed in September 2022 at VOC
pumpout wells PW1, PW2, PW3, PW4, PW6, PW10 and PW11 and pumpout wells PW14,
PW22, PW23, and PW24 that consisted of the following:
• Removing, disassembling and cleaning the submersible pump in each well;
2023-12-20_2022 OKMN Annual VOC Report
4-1
-------
Restoring Resource Efficiency
• Treatment of each well using an appropriate volume (as recommended by the
manufacturer) of specialty chemicals to remove iron and biological growth;
• Using a surge block within the screened interval of each well for approximately 30
minutes to disperse the chemicals;
• Flushing the piping between each well and the treatment building using a combination
of compressed air and potable water;
• Reinstallation of each submersible pump in the pumpout wells;
• Restarting the pumps in each well while containerizing the water affected by the
chemical solution until the pH of the discharge water returned to normal;
• Adding the necessary amount of buffer to adjust the pH of the containerized water
prior to disposal to the sanitary sewer;
• Sediment was removed from each well by means of the well rehabilitation activities
that were performed.
4.3 TREATMENT SYSTEM OPERATIONS AND MAINTENANCE
The groundwater treatment vessels and equipment provide equalization, chemical
conditioning, aeration, clarification and solids removal, granular activated carbon adsorption,
and off-gas treatment. The system controls operate automatically; monitoring and
maintenance are performed by the operators. The primary routine operation and maintenance
activities that were performed during 2022 included:
• Regular inspections (4-5 days/week);
• Clarifier maintenance (leveling the sludge blanket, sludge wasting, monitoring sludge
level and iron concentration);
• Building maintenance (as required);
• Replacement of activated carbon (performed four times during 2022);
• Adjustment and repair of chemical feed pumps;
• Inspection of off-gas treatment bio-mound (monthly).
In addition to normal operator maintenance on the clarifier sludge blanket, sludge that
accumulated was removed using a sump pump.
2023-12-20_2022 OKMN Annual VOC Report
4-2
-------
Restoring Resource Efficiency
4.4 VOC REMOVAL
Flow rates and water quality data are used to calculate the mass and volume of VOCs
removed by the pumpout system. An overall specific gravity of 0.8 is assumed for total VOC
volume/mass conversion in the calculations. This assumption is based on a concentration
weighted average of specific gravities for the specific volatile organic compounds in the
groundwater removed by the pumpout system. This is consistent with the assumption from
previous years.
The VOC analytical results (Table 3-2) for the pumpout wells were used to determine average
discharge concentrations for each well. The total annual flow measured at each well was used
to calculate the VOC mass removed per the concentrations. Figure 4-1 shows the cumulative
gallons of VOC removal and groundwater removed over time for the pumpout system.
Figures 4-9 through 4-15 show the cumulative flow and gallons of VOCs removed for all
seven individual VOC pumpout wells.
It is estimated that 78 gallons (236 kilograms (kg)) of VOCs were removed by the pumpout
system in 2022 (Table 4-2). This calculation does not account for the removal of VOCs by
additional pumpout wells PW14 through PW26. The greatest amount of VOC removal in
2022 (approximately 83 percent of the total mass) was from pumpout wells PW2, PW4 and
PW11. The historical VOC mass removed (kg/yr) by each active pumpout well since 1985 is
shown in Table 4-3. As shown on Figure 4-1, the cumulative rate of VOC removal is
decreasing due to a corresponding decrease in VOC concentrations over time. Since 1985, it
is estimated that the system has removed over 42,258 gallons of VOCs.
Historical well VOC removal efficiencies (amount of VOC removed per million gallons of
water pumped) over time are shown on Figure 4-16 for wells PW1, PW2 and PW4. Figures 4-
17, 4-18, 4-19 and 4-20 show the VOC removal efficiency for wells PW3, PW6, PW10 and
PW11, respectively. Pumpout wells PW2 and PW3 are the most efficient wells for removal of
VOCs, removing approximately 90 kilograms of VOCs per million gallons of water pumped
(kg/MG) and 55 kg/MG, respectively. Figures 4-16 through 4-20 show the efficiency of VOC
removal for the pumpout wells dropped significantly until 1996 (PW10) through 2004 (PW3)
and has realized a stable to slow declining level since 2010.
2023-12-20_2022 OKMN Annual VOC Report
4-3
-------
Figure 4-1
Cumulative Discharge Data
VOC Pumpout Wells
Abresch Site
d?^3 o^5 d^dP"5 d?^ o^3 d^5 d^ cS^ c?>S cS^c^ c*^ c$^ c^* <&
Date
-Cumulative VOCs Removed
¦Cumulative Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-01-AII_Wells
-------
Figure 4-2
Pumpout Well PW1
Historical Average Pumping Rate
Abresch Site
6
5
4
Q.
0
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VC)C_Figures-Calcs-Charts-DC.xlsx; Fig-04-02-PW1
-------
Figure 4-3
Pumpout Well PW2
Historical Average Pumping Rate
Abresch Site
18 1
16 -
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-03-PW2
-------
Figure 4-4
Pumpout Well PW3
Historical Average Pumping Rate
Abresch Site
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-04-PW3
-------
Figure 4-5
Pumpout Well PW4
Historical Average Pumping Rate
Abresch Site
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-05-PW4
-------
Figure 4-6
Pumpout Well PW6
Historical Average Pumping Rate
Abresch Site
35
30
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-06-PW6
-------
Figure 4-7
Pumpout Well PW10
Historical Average Pumping Rate
Abresch Site
rON rS?' rS? rS^ r§Ł rS? r§? rN^ rN^ rN^ rf^ rffl'
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-07-PW10
-------
Figure 4-8
Pumpout Well PW11
Historical Average Pumping Rate
Abresch Site
26 n
24
22
20
18
16
Q.
0
o" 14
re
a.
O)
c
'q.
E
12
10
:, jjYjnrp'i;
& c# <# c# c?>N <& <& C^5 c^* c\^ cssS c5^ C^5 CS^
Date
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-08-PW11
-------
Figure 4-9
Pumpout Well PW1
Cumulative Discharge Data
Abresch Site
700
700
500 O
Date
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-09-PW1
-------
Figure 4-10
Pumpout Well PW2
Cumulative Discharge Data
Abresch Site
120 n
100
r 120
100
(0
c
O
ra
0
¦D
O
E
o
o
>
c
O
TO
o
¦D
c
05
¦D
O
E
<$> <$>
Date
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-10-PW2
-------
Figure 4-11
Pumpout Well PW3
Cumulative Discharge Data
Abresch Site
18000
16000
ci^c^cS^c^c^
Date
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-11-PW3
-------
5000
4000
re
0
T3
O
E
3000
2000
1000
Figure 4-12
Pumpout Well PW4
Cumulative Discharge Data
Abresch Site
100
f$&&&&f°>f°>f°>&f°>r°>r°>f°>&f°>rpeprprp fŁ>"
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-12-PW4
-------
Figure 4-13
Pumpout Well PW6
Cumulative Discharge Data
Abresch Site
4000
250
-- 200
-- 150
-- 100
-- 50
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-13-PW6
-------
Figure 4-14
Pumpout Well PW10
Cumulative Discharge Data
AbreschSite
r 1.2
^ >&&&&&&$>#>&&&&(Ł>($>($>($>($><$>($<$><$>($($><$>($>($>($>($>($>($><$>,$ rp'rp"^
¦VOCs Removed
¦Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-14-PW10
-------
Figure 4-15
Pumpout Well PW11
Cumulative Discharge Data
Abresch Site
Date
VOCs Removed ¦ Groundwater Removed
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-15-PW11
-------
Figure 4-16
Historical Efficiency of VOC Removal
Pumpout Wells PW1, PW2 and PW4
Abresch Site
Date
-~-PW1 —PW2 -A-PW4
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-16-PW-1-2-4
-------
Figure 4-17
Historical Efficiency of VOC Removal
Pumpout Well PW3
Abresch Site
Date
—PW3
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VC)C_Figures-Calcs-Charts-DC.xlsx; Fig-04-17-PW3
-------
Figure 4-18
Historical Efficiency of VOC Removal
Pumpout Well PW6
Abresch Site
Date
—PW6
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-18-PW6
-------
Figure 4-19
Historical Efficiency of VOC Removal
Pumpout Well PW10
Abresch Site
Date
—PW10
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-19-PW10
-------
Figure 4-20
Historical Efficiency of VOC Removal
Pumpout Well PW11
Abresch Site
300
Date
—PW11
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsx; Fig-04-20-PW11
-------
l[»Km
Table 4-2
Pumpout Well Operating Data - 2016 to 2022
Abresch Site
Total Gallons of Water Pumped
Average Total VOC Concentrations (ug/L)
Estimated Total Gallons of Volatile Organics
Pumped1
Total Mass Removed (kg)
Pumpout
Well No.
2016
2017
2018
2019
2020
2021
2022
2016
2017
2018
2019
2020
2021
2022
2016
2017
2018
2019
2020
2021
2022
2016
2017
2018
2019
2020
2021
2022
PW1
435,012
402,924
408,286
422,491
226,485
331,548
370,001
12,400
11,000
6,540
8,794
10,437
12,005
2,829
6.5
5.5
3.3
4.6
3.0
5.0
1.3
20
17
10
14
9
15
4
PW2
1,238,685
1,678,581
1,011,026
907,670
796,637
951,977
431,788
10,200
20,000
5,373
8,530
10,982
8,743
23,845
15.5
42.0
6.8
9.7
10.9
10.4
12.9
47
127
21
29
33
32
39
PW3
249,029
214,000
245,523
227,335
340,845
310,781
314,468
31,000
23,000
14,350
23,729
24,300
26,583
14,585
9.6
6.2
4.4
6.7
10.4
10.3
5.7
29
19
13
20
31
31
17
PW4
1,877,615
1,722,063
1,474,309
2,316,551
2,109,758
1,904,739
2,483,663
15,900
34,000
11,349
19,875
13,706
18,204
14,313
37.6
73.2
20.9
57.6
36.1
43.3
44.4
114
222
63
174
110
131
135
PW6
5,373,620
5,094,100
4,380,500
4,057,060
3,651,032
3,399,676
2,160,380
3,500
4,100
3,374
2,310
2,726
2,599
2,432
23.5
26.1
18.5
11.7
12.4
11.0
6.6
71
79
56
36
38
33
20
PW10
35,837
39,741
40,481
70,080
55,748
36,900
32,775
6,200
6,600
3,882
4,298
2,815
4,926
3,612
0.3
0.3
0.2
0.4
0.2
0.2
0.1
0.8
1.0
0.6
1.1
0.6
0.7
0.4
PW11
1,788,988
2,396,408
1,457,485
1,447,797
1,531,808
2,049,042
1,419,478
7,200
6,900
3,267
3,434
4,716
8,488
3,824
16.1
20.7
6.0
6.2
9.0
21.7
6.8
49
63
18
19
27
66
21
Totals
10,998,786
11,547,817
9,017,610
9,448,984
8,712,313
8,984,663
7,212,553
109
174
60
97
82
102
78
331
527
182
294
249
309
236
Notes:
1 - Total gallons of volatile organic compounds are calculated using annual discharges for each well and an average specific gravity of 0.8.
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VC>C_Figures-Calcs-Charts-DC.xlsx;
Table 4-2
-------
Table 4-3
Historical VOC Mass Removed
Active Pumping Wells
Abresch Site
PW1
PW2
PW3
PW4
PW6
PW10
PW11
TOTAL
Date
(kg/yr)
(kg/yr)
(kg/yr)
(kg/yr)
(kg/yr)
(kg/yr)
(kg/yr)
(kg/yr)
1985
39
321
482
415
612
9.1
106
2951
1986
191
434
546
1789
3335
115
758
9821
1987
197
1377
2025
631
1749
21
628
7763
1988
139
5397
2001
488
503
18
209
10178
1989
130
3796
3411
346
361
20
264
8800
1990
94
2683
2665
409
258
25
143
7652
1991
49
697
9748
961
236
18
173
13144
1992
91
1104
8796
979
224
112
173
11941
1993
40
1370
4860
1055
216
17
102
7945
1994
38
439
2148
509
356
16
115
3745
1995
55
1398
1460
776
274
13
107
4240
1996
71
1301
1103
633
190
4.2
115
3512
1997
79
758
2297
497
168
3.3
102
4019
1998
47
1202
1060
235
119
2.9
61
2782
1999
45
1449
159
465
225
1.4
128
2537
2000
47
1136
1096
791
372
1.3
132
3631
2001
39
933
962
592
177
1.3
118
2883
2002
61
1469
1169
561
184
2.0
117
3612
2003
33
665
582
340
119
1.1
111
1865
2004
31
614
273
493
98
1.5
82
1593
2005
22
708
534
423
54
1.3
111
1852
2006
20
695
480
383
54
1.3
181
1815
2007
21
811
416
348
67
2.2
135
1799
2008
27
444
207
221
58
2.4
120
1079
2009
31
336
188
338
79
1.1
106
1080
2010
23
474
34
198
28
0.8
124
882
2011
16
297
75
236
39
1.1
101
765
2012
18
182
39
199
67
1.2
110
616
2013
14
233
17
144
65
1.0
92
567
2014
9.3
234
22
90
47
1.1
43
448
2015
10
49
46
176
67
0.4
133
482
2016
20
47
29
114
71
0.8
49
331
2017
17
127
19
222
79
1.0
63
527
2018
10
21
13
63
56
0.6
18
182
2019
14
29
20
174
36
1.1
19
294
2020
9
33
31
110
38
0.6
27
249
2021
15
32
31
131
33
0.7
66
309
2022
4
39
17
135
20
0.4
21
236
kg/yr = kilograms of VOCs removed per year.
Note: Total mass removed prior to 2004 includes wells PW5, PW7, PW8, PW9, and PW12.
Tbl-04-02to04-03_Fig03-03&04-01to04-17_2022-OKMN-VOC_Figures-Calcs-Charts-DC.xlsxTable 4-3
-------
Restoring Resource Efficiency
5. FINDINGS AND RECOMMENDATIONS
5.1 GROUNDWATER CAPTURE
Since the installation of the VOC pumpout system in 1985, water levels measured in the
Abresch Site monitoring wells have demonstrated that the pumpout system has hydraulically
controlled the migration of VOCs in groundwater at the Abresch Site. The observed
inward/upward groundwater hydraulic gradients serve as the primary demonstration of VOC
pumpout system containment. In addition, groundwater monitoring data have demonstrated
significant water quality improvement over the years of operation (i.e., downward trend in
VOC concentrations and reduced area of groundwater impacts), further establishing that the
Abresch Site's VOC source areas have been contained and are being removed by the pumpout
system.
5.2 HISTORICAL GROUNDWATER QUALITY TRENDS
Figure 4-1 shows cumulative groundwater and VOC removal in gallons for the VOC pumpout
system. A change in slope (i.e., decrease in rate of VOC removal over time) of the cumulative
VOC removal curve is present at approximately 1993, 2003, and again at approximately 2010,
compared to the slope (i.e., rate of groundwater removal over time) of the groundwater
removal graph, which has remained relatively constant. The decrease in slope of the
cumulative VOC removal curve indicates that the higher VOC concentrations in the
groundwater were removed during the early operation of the pumpout system and over time,
lower VOC concentrations in groundwater have resulted in a lower rate of mass removal.
Figures 4-9 through 4-15 show cumulative groundwater discharge versus cumulative VOC
mass removal graphs for pumpout wells PW1, PW2, PW3, PW4, PW6, PW10 and PW11.
Pumpout wells PW1, PW3, and PW10 indicate overall declining rates of VOC (gallons)
removal since approximately 1993, and at PW2, PW4, and PW6 since approximately 2003.
VOC (gallons) removal for pumpout well PW11 has been generally stable since 2000, but
during 2022 only removed less than 10% of the total amount.
2023-12-20_2022 OKMN Annual VOC Report
5-1
-------
Restoring Resource Efficiency
5.3 2022 TREATMENT SYSTEM OPERATION
Since the pumpout system monitoring data continues to show removal of VOCs while
maintaining gradient control, the system is operating in accordance with the July 1983
Consent Order (U.S. EPA, 1983). In 2022, the highest total mass of VOCs was removed by
pumpout wells PW2, PW4 and PW11 (approximately 83 percent of total mass). Pumpout
wells PW2 and PW3 had the greatest efficiency in terms of mass of VOCs removed per
millions of gallons of water pumped (Figures 4-16 and 4-17). The total flow rate of the VOC
pumpout system was lower in the 2nd quarter 2022 compared to the 1st, 3rd, and 4th quarters of
2022. Overall, the average amount of groundwater pumped per quarter by the VOC pumpout
system was 1.8 MG, while the lowest amount pumped per quarter was within approximately
12% of the average, and the highest amount pumped per quarter was within approximately
17% of the average.
Treatment system equipment improvements and other maintenance activities contributed to
improving the operation of the system in 2022. Surge protectors, which were installed in
2013, have addressed previous electrical issues and prevented the treatment system from
shutting down due to power supply surges. In early 2020, the aerator portion of the treatment
train was upgraded with new PVC piping and the application of permanganate chemical was
changed to mix with the raw water storage tank instead of applying the permanganate to the
clarifier. These modifications to the treatment system were done to reduce iron fouling within
the treatment system and have since greatly reduced the iron scale buildup in the aerator,
however operating the treatment system after these changes in chemical addition has resulted
in a significant increase in sludge accumulation in the clarifier section of the treatment
system. To reduce the overall thickness of the sludge blanket and maintain the reduced sludge
blanket in the clarifier, approximately 20,000 gallons of liquid sludge was wasted from the
clarifier over a 12-month period in 2022. A regular schedule for sludge wasting is being
implemented to improve clarifier operation. Annual well maintenance/rehabilitation activities
performed in September 2022 were successful in cleaning and removing iron scale in the
pumpout wells and discharge piping. Additional well maintenance/rehabilitation activities
were performed at several pumpout wells throughout 2022 on an as needed basis.
2023-12-20_2022 OKMN Annual VOC Report
5-2
-------
Restoring Resource Efficiency
5.4 RECOMMENDATIONS
The groundwater elevation monitoring and analytical sample collection for 2023 will continue
in accordance with the November 2010 Groundwater and Surface Water Sampling Plan.
Additionally, regular maintenance will be performed on the pumpout wells as needed to
maintain optimal performance. Based on our operating experience, iron removal and cleaning
will be conducted for the pumps and piping on a yearly basis and consistent with the past
program. Routine treatment plant operation and maintenance activities and reporting will
continue as defined in Section 4.
2023-12-20_2022 OKMN Annual VOC Report
5-3
-------
Restoring Resource Efficiency
6. REFERENCES
Barr Engineering Company. 1985. Final Groundwater Monitoring Plan. Prepared for 3M
Company, March 1985.
Barr Engineering Company. 2003. Quality Assurance Project Plan (Revision 1): Oakdale
Disposal site, Oakdale, Minnesota. Prepared for 3M Company, May 2003.
Barr Engineering Company. 2007. 2006 Annual Monitoring Report, Oakdale Disposal Sites.
Prepared for 3M Company, April 2007.
Karanovic, Marinko, Tonkin, Matthew, and Wilson, David. 2009. KT3D H20: A Program
for Kriging Water Level Data Using Hydrologic Drift terms. Ground Water. July/August
2009.
MDH. 2008. Health Risk Values for groundwater and groundwater values table. Minnesota
Department of Health website:
http://www.health.state.mn.us/divs/eh/risk/guidance/gw/table.html
Tonkin, Matthew J. and Larson, Steven P. 2002. Kriging Water Levels with a Regional-
linear and Point-logarithmic Drift. Ground Water. March/April 2002.
U.S. Environmental Protection Agency (U.S. EPA). 1983. Administrative Order by Consent
and Response Order by Consent: Exhibit A. U.S. EPA Region V, Chicago, Illinois, Minnesota
Pollution Control Agency, St. Paul, Minnesota, and Minnesota Mining and Manufacturing
Company, St. Paul, Minnesota.
WESTON (Weston Solutions, Inc.). 2009. Remedial Design/Response Action Plan. Prepared
by Weston Solutions, Inc. for the 3M Company. February 2009.
WESTON (Weston Solutions, Inc.). 2010. Groundwater and Surface Water Sampling Plan
for the Former Oakdale Disposal Area. Prepared by Weston Solutions, Inc. for the 3M
Company. November 2010. Revised January 25, 2011.
2023-12-20_2022 OKMN Annual VOC Report
6-1
-------
Restoring Resource Efficiency
APPENDIX A
2022 MONTHLY DISCHARGE REPORTS
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
February 5, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: January 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the January 2022 discharge volumes to the sanitary sewer from the 3M
Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116) with any questions or
comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
I
-------
Ms. Jill Crisp
City of Oakdale
-2-
February 5, 2022
Table 1
January 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
January 3, 2022
Meter Readings
(gallons)
February 1,2022
Meter Readings
(gallons)
January 2022
Discharge Volume
(gallons)
PW-1
4,766,250
4,795,550
29,300
PW-2
6,488,699
6,599,191
110,492
PW-3
2,940,683
2,965,907
25,224
PW-4
6,667,513
6,876,731
209,218
PW-6
6,693,988
6,891,288
197,300
PW-10
455,213
457,943
2,730
PW-11
230,845
316,140
85,295
PW-14
1,712,529
1,822,400
109,871
PW-15
2,609,573
3,072,539
462,966
PW-16
1,197,506
1,489,713
292,207
PW-17
4,961,131
5,202,127
240,996
PW-18
7,433,656
7,748,693
315,037
PW-19
8,823,125
9,144,441
321,316
PW-20
5,694,270
5,788,960
94,690
PW-21
5,112,657
5,166,733
54,076
PW-22
4,835,864
4,858,409
22,545
PW-23
2,742,307
2,742,674
367
PW-24
208,185
211,967
3,782
PW-25
1,215,480
1,344,154
128,674
PW-26
2,400,842
2,564,406
163,564
City Meter
16,405,791
16,519,319
113,528
Total:
2,983,178
Operational Days: 31
2022-0 l_Oakdale_Monthly_Monitoring_Report
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
March 4, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: February 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the February 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116)
with any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - March 4,2022
Table 1
February 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
February 1,2022
Meter Readings
(gallons)
March 1, 2022
Meter Readings
(gallons)
February 2022
Discharge Volume
(gallons)
PW-1
4,795,550
4,824,187
28,637
PW-2
6,599,191
6,670,514
71,323
PW-3
2,965,907
2,990,325
24,418
PW-4
6,876,731
7,065,241
188,510
PW-6
6,891,288
7,064,917
173,629
PW-10
457,943
459,447
1,504
PW-11
316,140
446,364
130,224
PW-14
1,822,400
1,918,163
95,763
PW-15
3,072,539
3,466,883
394,344
PW-16
1,489,713
1,766,723
277,010
PW-17
5,202,127
5,429,592
227,465
PW-18
7,748,693
8,040,733
292,040
PW-19
9,144,441
9,447,893
303,452
PW-20
5,788,960
5,874,407
85,447
PW-21
5,166,733
5,213,184
46,451
PW-22
4,858,409
4,874,174
15,765
PW-23
2,742,674
2,742,674
0
PW-24
211,967
215,358
3,391
PW-25
1,344,154
1,630,273
286,119
PW-26
2,564,406
2,692,357
127,951
City Meter
16,519,319
16,645,623
126,304
Total:
2,899,747
Operational Days: 28
2022-02_Oakdale_Monthly_Monitoring_Report
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
April 5, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: March 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the March 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - April 1, 2022
Table 1
March 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
March 1, 2022
Meter Readings
(gallons)
April 1, 2022
Meter Readings
(gallons)
February 2022
Discharge Volume
(gallons)
PW-1
4,824,187
4,856,710
32,523
PW-2
6,670,514
6,682,712
12,198
PW-3
2,990,325
3,021,991
31,666
PW-4
7,065,241
7,258,134
192,893
PW-6
7,064,917
7,176,256
111,339
PW-10
459,447
460,732
1,285
PW-11
446,364
575,073
128,709
PW-14
1,918,163
2,018,423
100,260
PW-15
3,466,883
3,855,991
389,108
PW-16
1,766,723
2,070,927
304,204
PW-17
5,429,592
5,707,079
277,487
PW-18
8,040,733
8,312,570
271,837
PW-19
9,447,893
9,725,638
277,745
PW-20
5,874,407
5,962,317
87,910
PW-21
5,213,184
5,291,101
77,917
PW-22
4,874,174
4,920,187
46,013
PW-23
2,742,674
2,744,208
1,534
PW-24
215,358
216,272
914
PW-25
1,630,273
1,789,787
159,514
PW-26
2,692,357
2,778,854
86,497
City Meter
16,645,623
16,825,845
180,222
Total:
2,771,775
Operational Days: 31
2022-03_Oakdale_Monthly_Monitoring_Report
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
May 2, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: April 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the April 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - April 30,2022
Table 1
April 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
April 1, 2022
Meter Readings
(gallons)
April 30, 2022
Meter Readings
(gallons)
April 2022
Discharge Volume
(gallons)
PW-1
4,856,710
4,886,378
29,668
PW-2
6,682,712
6,683,447
735
PW-3
3,021,991
3,058,939
36,948
PW-4
7,258,134
7,433,253
175,119
PW-6
7,176,256
7,356,398
180,142
PW-10
460,732
465,901
5,169
PW-11
575,073
645,328
70,255
PW-14
2,018,423
2,128,664
110,241
PW-15
3,855,991
4,206,194
350,203
PW-16
2,070,927
2,357,904
286,977
PW-17
5,707,079
5,935,883
228,804
PW-18
8,312,570
8,548,381
235,811
PW-19
9,725,638
9,986,753
261,115
PW-20
5,962,317
6,052,255
89,938
PW-21
5,291,101
5,392,548
101,447
PW-22
4,920,187
4,951,212
31,025
PW-23
2,744,208
2,749,107
4,899
PW-24
216,272
221,061
4,789
PW-25
1,789,787
1,937,808
148,021
PW-26
2,778,854
2,860,979
82,125
City Meter
16,825,845
16,970,998
145,153
Total:
2,578,584
Operational Days: 30
2022-04_Oakdale_Monthly_Monitoring_Report
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
June 2, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: May 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the May 2022 discharge volumes to the sanitary sewer
from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - June 2, 2022
Table 1
May 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
April 30, 2022
Meter Readings
(gallons)
June 1, 2022
Meter Readings
(gallons)
May 2022 Discharge
Volume (gallons)
PW-1
4,886,378
4,898,332
11,954
PW-2
6,683,447
6,683,843
396
PW-3
3,058,939
3,101,704
42,765
PW-4
7,433,253
7,688,440
255,187
PW-6
7,356,398
7,537,125
180,727
PW-10
465,901
472,851
6,950
PW-11
645,328
681,802
36,474
PW-14
2,128,664
2,264,863
136,199
PW-15
4,206,194
4,655,708
449,514
PW-16
2,357,904
2,744,960
387,056
PW-17
5,935,883
6,238,086
302,203
PW-18
8,548,381
8,887,357
338,976
PW-19
9,986,753
10,329,483
342,730
PW-20
6,052,255
6,184,490
132,235
PW-21
5,392,548
5,533,861
141,313
PW-22
4,951,212
5,025,292
74,080
PW-23
2,749,107
2,763,297
14,190
PW-24
221,061
221,892
831
PW-25
1,937,808
2,049,629
111,821
PW-26
2,860,979
2,954,189
93,210
City Meter
16,970,998
17,030,567
59,569
Total:
3,118,380
Operational Days: 31
2022-05_Oakdale_Monthly_Monitoring_Report
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
July 5, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: June 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the June 2022 discharge volumes to the sanitary sewer
from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - July 5, 2022
Table 1
June 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
June 1, 2022
Meter Readings
(gallons)
July 1, 2022
Meter Readings
(gallons)
June 2022 Discharge
Volume (gallons)
PW-1
4,898,332
4,915,901
17,569
PW-2
6,683,843
6,696,869
13,026
PW-3
3,101,704
3,136,566
34,862
PW-4
7,688,440
7,932,766
244,326
PW-6
7,537,125
7,731,998
194,873
PW-10
472,851
474,381
1,530
PW-11
681,802
742,568
60,766
PW-14
2,264,863
2,383,094
118,231
PW-15
4,655,708
5,120,316
464,608
PW-16
2,744,960
3,115,305
370,345
PW-17
6,238,086
6,525,775
287,689
PW-18
8,887,357
9,228,636
341,279
PW-19 1
10,329,483
655,951
326,468
PW-20
6,184,490
6,236,845
52,355
PW-21
5,533,861
5,667,230
133,369
PW-22
5,025,292
5,081,751
56,459
PW-23
2,763,297
2,786,059
22,762
PW-24
221,892
226,097
4,205
PW-25
2,049,629
2,163,366
113,737
PW-26
2,954,189
3,075,679
121,490
City Meter
17,030,567
17,112,744
82,177
Total:
3,062,126
Operational Days: 28
1 PW-19 Meter rolled over at 10,000,000 gallons in May 2022.
2022-06_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
August 4, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: July 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the July 2022 discharge volumes to the sanitary sewer
from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - August 5,2022
Table 1
July 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
July 1, 2022
Meter Readings
(gallons)
July 31,2022
Meter Readings
(gallons)
July 2022 Discharge
Volume (gallons)
PW-1
4,915,901
4,941,757
25,856
PW-2
6,696,869
6,725,862
28,993
PW-3
3,136,566
3,155,501
18,935
PW-4
7,932,766
8,166,444
233,678
PW-6
7,731,998
7,882,613
150,615
PW-10
474,381
476,675
2,294
PW-11
742,568
900,043
157,475
PW-14
2,383,094
2,456,735
73,641
PW-15
5,120,316
5,436,149
315,833
PW-16
3,115,305
3,506,171
390,866
PW-17
6,525,775
6,798,360
272,585
PW-18
9,228,636
9,582,104
353,468
PW-19 1
655,951
933,294
277,343
PW-20
6,236,845
6,292,997
56,152
PW-21
5,667,230
5,780,794
113,564
PW-22
5,081,751
5,119,555
37,804
PW-23
2,786,059
2,809,439
23,380
PW-24
226,097
227,740
1,643
PW-25
2,163,366
2,369,412
206,046
PW-26
3,075,679
3,210,390
134,711
City Meter
17,112,744
17,153,375
40,631
Total:
2,915,513
Operational Days: 29
2022-07_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
Sept 8, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: August 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the August 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - September 5,2022
Table 1
August 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
July 31,2022
Meter Readings
(gallons)
September 1, 2022
Meter Readings
(gallons)
August 2022
Discharge Volume
(gallons)
PW-1
4,941,757
4,985,288
43,531
PW-2
6,725,862
6,753,247
27,385
PW-3
3,155,501
3,178,403
22,902
PW-4
8,166,444
8,414,521
248,077
PW-6
7,882,613
8,064,526
181,913
PW-10
476,675
477,781
1,106
PW-11
900,043
1,031,616
131,573
PW-14
2,456,735
2,457,112
377
PW-15
5,436,149
5,850,151
414,002
PW-16
3,506,171
3,899,078
392,907
PW-17
6,798,360
7,098,955
300,595
PW-18
9,582,104
9,966,023
383,919
PW-19 1
933,294
1,219,854
286,560
PW-20
6,292,997
6,368,186
75,189
PW-21
5,780,794
5,893,391
112,597
PW-22
5,119,555
5,151,114
31,559
PW-23
2,809,439
2,833,366
23,927
PW-24
227,740
231,674
3,934
PW-25
2,369,412
2,574,128
204,716
PW-26
3,210,390
3,449,316
238,926
City Meter
17,153,375
17,207,870
54,495
Total:
3,180,190
Operational Days: 30
2022-08_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
October 4, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: September 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the September 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Client Account Manager
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - October 4,2022
Table 1
September 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
September 1, 2022
Meter Readings
(gallons)
September 30, 2022
Meter Readings
(gallons)
September 2022
Discharge Volume
(gallons)
PW-1
4,985,288
5,017,480
32,192
PW-2
6,753,247
6,772,292
19,045
PW-3
3,178,403
3,181,691
3,288
PW-4
8,414,521
8,591,296
176,775
PW-6
8,064,526
8,242,848
178,322
PW-10
477,781
479,198
1,417
PW-11
1,031,616
1,064,144
32,528
PW-14
2,457,112
2,457,469
357
PW-15
5,850,151
6,124,316
274,165
PW-16
3,899,078
4,221,666
322,588
PW-17
7,098,955
7,367,354
268,399
PW-181
9,966,023
287,817
321,794
PW-19
1,219,854
1,461,461
241,607
PW-20
6,368,186
6,435,537
67,351
PW-21
5,893,391
5,959,816
66,425
PW-22
5,151,114
5,166,225
15,111
PW-23
2,833,366
2,851,240
17,874
PW-24
231,674
234,520
2,846
PW-25
2,574,128
2,781,398
207,270
PW-26
3,449,316
3,555,630
106,314
City Meter
17,207,870
17,242,037
34,167
Total:
2,389,835
1 The flow meter for this production well rolled over past 10,000,000 gallons.
Operational Days: 28
2022-09_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
November 5, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: October 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the October 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
John Sontag, Jr. P.E.
Client Account Director
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - November 5,2022
Table 1
October 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
September 30, 2022
Meter Readings
(gallons)
November 1, 2022
Meter Readings
(gallons)
October 2022
Discharge Volume
(gallons)
PW-1
5,017,480
5,055,993
38,513
PW-2
6,772,292
6,823,813
51,521
PW-3
3,181,691
3,184,753
3,062
PW-4
8,591,296
8,797,126
205,830
PW-6
8,242,848
8,489,713
246,865
PW-10
479,198
481,487
2,289
PW-11
1,064,144
1,279,853
215,709
PW-14
2,457,469
2,510,389
52,920
PW-15
6,124,316
6,509,983
385,667
PW-16
4,221,666
4,541,802
320,136
PW-17
7,367,354
7,646,280
278,926
PW-18
287,817
585,771
297,954
PW-19
1,461,461
1,763,587
302,126
PW-20
6,435,537
6,549,670
114,133
PW-21
5,959,816
6,029,214
69,398
PW-22
5,166,225
5,202,579
36,354
PW-23
2,851,240
2,876,824
25,584
PW-24
234,520
238,946
4,426
PW-25
2,781,398
2,951,679
170,281
PW-26
3,555,630
3,751,636
196,006
City Meter
17,242,037
17,308,469
66,432
Total:
3,084,132
Operational Days: 30
2022-10_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
610-701-3000
WestonSolutions.com
an employee-owned company
December 8, 2022
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: November 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the November 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3679 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
John Sontag, Jr. P.E.
Client Account Director
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
-------
YEasssn
WMHKS.. '
Ms. Jill Crisp
City of Oakdale - 2 - December 8,2022
Table 1
November 2022 Discharge Volume Summary
3M Oakdale Site, Oakdale, MN
Well
Number
November 1, 2022
Meter Readings
(gallons)
December 1, 2022
Meter Readings
(gallons)
December 2022
Discharge Volume
(gallons)
PW-1
5,055,993
5,103,310
47,317
PW-2
6,823,813
6,874,634
50,821
PW-3
3,184,753
3,184,753
0
PW-4
8,797,126
8,981,288
184,162
PW-6
8,489,713
8,700,669
210,956
PW-10
481,487
484,587
3,100
PW-11
1,279,853
1,470,012
190,159
PW-14
2,510,389
2,645,911
135,522
PW-15
6,509,983
6,931,120
421,137
PW-16
4,541,802
4,896,064
354,262
PW-17
7,646,280
7,885,534
239,254
PW-18
585,771
911,151
325,380
PW-19
1,763,587
1,959,125
195,538
PW-20
6,549,670
6,667,413
117,743
PW-21
6,029,214
6,128,737
99,523
PW-22
5,202,579
5,242,520
39,941
PW-23
2,876,824
2,901,034
24,210
PW-24
238,946
242,828
3,882
PW-25
2,951,679
3,174,144
222,465
PW-26
3,751,636
3,908,771
157,135
City Meter
17,308,469
17,357,636
49,167
Total:
3,071,674
Operational Days: 30
2022-1 l_Oakdale_Monthly_Monitoring_Report-DRAFT
-------
©
ws^Auautuuu 610-701-3000
an employee-owned company WestonSolutions.com
'j** i^^ri Weston Solutions, Inc.
~L \1 [Tig—H I 1400 Weston Way
n) jLI vqi..aUvi West Chester, PA 1938(
January 3, 2023
Ms. Jill Crisp
Utility Clerk, City of Oakdale
1584 Hadley Avenue North
Oakdale, Minnesota 55128
Re: December 2022 Discharge Report
3M Oakdale Site
Dear Ms. Crisp:
On behalf of 3M, we are providing the December 2022 discharge volumes to the sanitary
sewer from the 3M Oakdale Disposal Site pump-out system in Table 1.
Please feel free to contact me at (610) 701-3054 or Denver Martin at (715) 222-7116 with
any questions or comments.
Very truly yours,
Weston Solutions, Inc.
Jonathan M. Rybacki, P.G.
Senior Project Geoscientist
Enc.
cc: Chris Formby, MPCA
Kevin Madson, 3M
Denver Martin, Weston
RUST- PERFORMANCE PEOPL
i
-------
TCBSHKJ
&i!Ui
-------
Restoring Resource Efficiency
APPENDIX B
SUMMARY OF WELL CONSTRUCTION INFORMATION
-------
Summary of Well Information
Former Abresch Disposal Site
Oakdale, MN
TOC
GS
Depth to
Depth to
MDH Unique
Elevation
Elevation (ft
Top of Screen*
Bottom of Screen*
Total Depth*
Well Diameter/
Northing
Easting
Well ID
Well Number
(ft MSL)
MSL)
(ft BGS)
(ft BGS)
(ft BGS)
Casing Material*
Aquifer
(UTM meters)
(UTM meters)
APZ44
...
1011.76
5
15
15
2" PVC
Upper Alluvium
4982851
502295
APZ45
...
995.52
5
15
15
2" PVC
Upper Alluvium
4982418
502752
APZ46
...
998.57
5
15
15
2" PVC
Upper Alluvium
4982265
502728
APZ47
...
1004.63
10
20
20
2" PVC
Upper Alluvium
4982194
502602
APZ48
...
1000.02
5
15
15
2" PVC
Upper Alluvium
4982338
502573
APZ49
...
999.25
5
15
15
2" PVC
Upper Alluvium
4982268
502504
APZ50
...
1004.65
5
15
15
2" PVC
Upper Alluvium
4982380
502373
GPPZ23
...
998.32
33
38
38
1" PVC
Lower Alluvium
4982393
502461
PC45 (ABD)
737655
1011.08
284.4
294.4
294.4
2" SS
Prairie du Chien
4981485
501958
PL41
737656
1003.74
71.4
81.4
81.4
2" SS
Platteville
4982165
502761
PW1
403786
1017.09
6
83
83
6" SS
Lower Alluvium
4982637
502033
PW2
403787
1021.51
5.5
91
91
6" SS
Lower Alluvium
4982607
502079
PW3
403788
1018.66
6
67
67
6" SS
Lower Alluvium
4982635
502127
PW4
403789
1017.23
6
79
79
6" SS
Lower Alluvium
4982605
502175
PW6
403791
1003.75
6
51
51
6" SS
Lower Alluvium
4982600
502260
PW7
403792
1007.75
6
46
46
6" SS
Lower Alluvium
4982637
502313
PW8
403793
1007.64
6
52.5
52.5
6" SS
Lower Alluvium
4982608
502356
PW9
403794
1005.59
6
29
29
6" SS
Lower Alluvium
4982638
502391
PW10
403795
1000.37
6
32
32
6" SS
Lower Alluvium
4982392
502437
PW11
403796
1006.12
6
68
68
6" SS
Lower Alluvium
4982570
502193
PW14
761336
995.40
15.4
30.4
30.4
6" SS
Lower Alluvium
4982360
502772
PW15
761337
995.60
20.9
50.9
50.9
6" SS
Lower Alluvium
4982413
502718
PW16
761338
996.18
19.1
39.1
39.1
6" SS
Lower Alluvium
4982371
502698
PW17
761339
996.75
18.6
38.6
38.6
6" SS
Lower Alluvium
4982327
502659
PW18
761340
996.86
17
57
57
6" SS
Lower Alluvium
4982347
502599
PW19
761341
1000.53
28.9
53.9
53.9
6" SS
Lower Alluvium
4982331
502564
PW20
761342
1000.24
31.5
51.5
51.5
6" SS
Lower Alluvium
4982337
502524
PW21
761343
998.41
37.5
57.5
57.5
6" SS
Lower Alluvium
4982282
502502
PW22
761344
998.47
15
25
25
6" SS
Lower Alluvium
4982354
502475
PW23
761345
1000.75
32.2
57.2
57.2
6" SS
Lower Alluvium
4982429
502440
PW24
761346
999.42
12.7
32.7
32.7
6" SS
Lower Alluvium
4982431
502390
PW25
761347
1003.21
20.2
60.2
60.2
6" SS
Lower Alluvium
4982230
502650
PW26
785569
1011.25
24.5
44.5
44.5
6" SS
Lower Alluvium
4982739
502314
RW37
727752
1005.03
5.28
15.28
15.28
4" SS
Upper Alluvium
4982157
502754
RW38
727753
1004.11
48.49
58.49
58.49
4" SS
Lower Alluvium
4982161
502745
SP42
737657
1004.34
115.17
125.17
125.17
2" SS
St. Peter Sandstone
4982167
502758
SP44 (ABD)
737654
1010.81
125.0
135.0
135.0
2" SS
St. Peter Sandstone
4981485
501962
-------
Summary of Well Information (cont'd)
Former Abresch Disposal Site
Oakdale, MN
TOC
GS
Depth to
Depth to
MDH Unique
Elevation
Elevation (ft
Top of Screen*
Bottom of Screen*
Total Depth*
Well Diameter/
Northing
Easting
Well ID
Well Number
(ft MSL)
MSL)
(ft BGS)
(ft BGS)
(ft BGS)
Casing Material*
Aquifer
(UTM meters)
(UTM meters)
W3
1003.05
NA
NA
94.7
4" CS (OH?)
Platteville
4982520
502512
W8
1015.50
NA
NA
97.4
4" CS (OH?)
Platteville
4982570
502028
W1103
NA
NA
NA
87.23 (TOC)1
Platteville
4983689
503213
W20
1016.64
15
25
25
2" SS
Upper Alluvium
4982748
502156
W2001
1007.18
31
33
33
2" SS
Lower Alluvium
4982648
502237
W2003
1000.90
50
52
52
2" SS
Lower Alluvium
4982542
502305
W2005
1007.47
41
43
43
2" SS
Lower Alluvium
4982382
502266
W2006
1007.32
62
64
64
2" SS
Lower Alluvium
4982645
502237
W2007
1021.94
44
46
46
2" SS
Lower Alluvium
4982735
502108
W2008
1001.42
60
62
62
2" SS
Lower Alluvium
4982543
502304
W2009
1001.33
35
37
37
2" SS
Lower Alluvium
4982396
502438
W2010
1006.99
74
76
76
2" SS
Lower Alluvium
4982382
502264
W2012
1016.29
53.87
2" SS
Lower Alluvium
4982579
502129
W203
1004.79
4
15
13.85
2" SS
Upper Alluvium
4982653
502451
W205
997.79
2
13
10.84
2" SS
Upper Alluvium
4982353
502698
W215
1007.30
7
15.5
15.5
2" SS
Upper Alluvium
4982383
502265
W217
1018.58
8.5
20
19.72
2" SS
Upper Alluvium
4982649
501898
W21R
785567
1017.48
9.90
19.9
19.9
2" PVC
Upper Alluvium
4982781
502275
W22
1019.44
19
29
27.57
2" SS
Upper Alluvium
4982733
502109
W23
1005.44
NA
NA
17.22
2" SS
Upper Alluvium
4982646
502238
W25
1000.37
0.5
12
11.09
2" SS
Upper Alluvium
4982520
502231
W26R
785568
1010.89
14.6
24.6
24.6
2" PVC
Upper Alluvium
4982735
502345
W28
1012.39
11
20.5
20.5
2" SS
Upper Alluvium
4982581
502059
W29
1016.97
17
25.5
25.5
2" SS
Upper Alluvium
4982622
502189
W30
1006.93
10
15
15
2" SS
Upper Alluvium
4982601
502357
W31
999.91
7
12
12
2" SS
Upper Alluvium
4982543
502306
W32
1003.09
5
15
15
2" SS
Upper Alluvium
4982485
502063
W33
1001.89
12
15.5
15.5
2" SS
Upper Alluvium
4982396
502433
W36
1016.87
NA
NA
22.84
2" SS
Upper Alluvium
4982581
502129
2023-03-OKMN-Well-lnf; OKMN-MDH_Tbl
-------
Summary of Well Information (cont'd)
Former Abresch Disposal Site
Oakdale, MN
TOC
GS
Depth to
Depth to
MDH Unique
Elevation
Elevation (ft
Top of Screen*
Bottom of Screen*
Total Depth*
Well Diameter/
Northing
Easting
Well ID
Well Number
(ft MSL)
MSL)
(ft BGS)
(ft BGS)
(ft BGS)
Casing Material*
Aquifer
(UTM meters)
(UTM meters)
W501
850429
995.21
993.40
3.5
13.5
13.5
2" PVC
Upper Alluvium
4982375
502740
W502
850430
994.83
993.30
29.8
34.8
34.8
2" SS
Lower Alluvium
4982374
502739
W503
850431
995.08
993.30
59.9
75.9
75.9
4" OH
Platteville
4982371
502738
W504
850432
1002.82
1000.90
5.5
15.5
15.5
2" SS
Fill/Waste
4982280
502624
W505
850433
1003.28
1001.20
45.1
50.1
50.1
2" SS
Lower Alluvium
4982278
502625
W506
850434
1002.96
1001.30
71.5
86.5
86.5
4" OH
Platteville
4982276
502627
W507
NA (<15' bgs)
998.93
996.00
2.3
7.3
7.3
2" PVC
Upper Alluvium
4982413
502487
W509
850435
998.47
996.40
5.2
15.2
15.2
2" PVC
Fill/Waste to Upper Till
4982354
502530
W510
850436
998.38
996.20
43.7
48.7
48.7
2" SS
Lower Alluvium
4982356
502531
W511
NA (<15' bgs)
996.75
993.90
1.8
6.8
6.8
2" PVC
Upper Alluvium
4982420
502695
W513
850437
1001.11
999.50
3.2
13.2
13.2
2" PVC
Fill/Waste to Upper
4982159
502581
W514
850438
1001.54
999.30
39.8
44.8
44.8
2" SS
Lower Alluvium
4982161
502582
W515
850439
1008.47
1006.30
9.4
19.4
19.4
2" PVC
Upper Till
4982433
502119
W516
850440
1008.48
1006.20
39.8
44.8
44.8
2" SS
Lower Alluvium
4982435
502119
W517
850428
1013.13
1011.10
32.1
37.1
37.1
2" SS
Lower Alluvium
4982740
502355
W518
850441
998.77
996.60
45.2
50.2
50.2
2" SS
Lower Alluvium
4982261
502723
W519
850426
1001.46
999.20
20.2
30.2
30.2
2" SS
Upper Till
4981716
501214
W521
850427
1003.47
1001.10
5.4
15.4
15.4
2" SS
Upper Alluvium
4982047
501984
W522
NA (<15' bgs)
1011.08
1008.70
2.9
7.9
7.9
2" PVC
Upper Alluvium
4982734
502243
W6102
190335
992.70
94
105
105
4" OH
Platteville
4981766
501196
W6104
417144
1001.23
NA
NA
102.89 (TOC)1
4" CS (OH?)
Platteville
4982031
501973
W6104R
850423
1003.19
1000.60
88.4
104.4
104.4
4" OH
Platteville
4982043
501984
W6201
991.23
109
124
124
4" SS
St. Peter Sandstone
4981790
501197
Notes:
* - Information obtained from well completion reports. CS - Carbon Steel
ft BGS - Feet below ground surface. SS - Stainless Steel
ft MSL - Feet above mean sea level. OH - Open Hole
NA - Not Available ABD - Abandoned
— - Piezometers (do not require MDH #)
1 - Total depth measured from Top of Casing.
2023-03-OKMN-Well-lnf; OKMN-MDH_Tbl
-------
Restoring Resource Efficiency
APPENDIX C
LABORATORY ANALYTICAL REPORTS
-------
Restoring Resource Efficiency
APPENDIX C.1
JUNE 2022 GROUNDWATER SAMPLING EVENT
-------
veAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
June 30, 2022
John Sontag
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
RE: Project: 02181.202.045.1001 Conf Oak
Pace Project No.: 10613447
Dear John Sontag:
Enclosed are the analytical results for sample(s) received by the laboratory on June 17, 2022. The results relate only to the
samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace National - Mt. Juliet
If you have any questions concerning this report, please feel free to contact me.
Sylvia Hunter
sylvia.hunter@pacelabs.com
1(612)607-1700
Project Manager
Enclosures
cc: Marta Cairns, Weston Solutions
Sincerely,
REPORT OF LABORATORY ANALYSIS
^ORAt0^
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 1 of 20
-------
Pace Analytical Services, LLC
ipp Ariah/tiral * 1700 Elm street
1UG ni laiy llual Minneapolis, MN 55414
www.pctlalis.com (612)607-1700
CERTIFICATIONS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Pace Analytical Services National
12065 Lebanon Road, Mt. Juliet, TN 37122
Alabama Certification #: 40660
Alaska Certification 17-026
Arizona Certification #: AZ0612
Arkansas Certification #: 88-0469
California Certification #: 2932
Canada Certification #: 1461.01
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EPA# TN00003
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Georgia DW Certification #: 923
Georgia Certification: NELAP
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New Mexico DW Certification
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South Dakota Certification
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Utah Certification #: TN00003
Virginia Certification #: VT2006
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West Virginia Certification #: 233
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REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 2 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
SAMPLE SUMMARY
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Lab ID Sample ID Matrix Date Collected Date Received
10613447001
OKMN-GW-PW07-0-220616
Water
06/16/22 10:30
06/17/22 15:40
10613447002
OKMN-GW-PW08-0-220615
Water
06/15/22 12:50
06/17/22 15:40
10613447003
OKMN-GW-PW09-0-220615
Water
06/15/22 12:40
06/17/22 15:40
10613447004
OKMN-GW-W26R-0-220616
Water
06/16/22 11:35
06/17/22 15:40
10613447005
OKMN-GW-W26R-DB-220616
Water
06/16/22 11:35
06/17/22 15:40
10613447006
OKMN-GW-W26R-EB-220616
Water
06/16/22 11:30
06/17/22 15:40
10613447007
OKMN-GW-W26R-TB-220615
Water
06/15/22 08:00
06/17/22 15:40
ceAnalytical
www.pacaliki.coni
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 3 of 20
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
SAMPLE ANALYTE COUNT
Project:
Pace Project No.
02181.202.045.1001 ConfOak
10613447
Lab ID
Sample ID
Method
Analysts
Analytes
Reported Laboratory
10613447001 OKMN-GW-PW07-0-220616
10613447002 OKMN-GW-PW08-0-220615
10613447003 OKMN-GW-PW09-0-220615
10613447004 OKMN-GW-W26R-0-220616
10613447005 OKMN-GW-W26R-DB-220616
10613447006 OKMN-GW-W26R-EB-220616
10613447007 OKMN-GW-W26R-TB-220615
EPA 8260D
EPA 8260D
EPA 8260D
EPA 8260D
EPA 8260D
EPA 8260D
EPA 8260D
JAH
JAH
JAH
JAH
JAH
JAH
JAH
19
19
19
19
19
19
19
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN = Pace National - Mt. Juliet
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 4 of 20
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project:
Pace Project No.
02181.202.045.1001 ConfOak
10613447
Sample: OKMN-GW-PW07-0-220616 Lab ID: 10613447001 Collected: 06/16/22 10:30 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No.
Qual
VOA (GC/MS) 8260D
Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Acetone
ND
ug/L
2500
50
06/27/22 23:26
06/27/22 23:26
67-64-1
Benzene
298
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
71-43-2
1,1-Dichloroethane
ND
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
75-34-3
1,2-Dichloroethane
ND
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
107-06-2
1,1-Dichloroethene
ND
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
75-35-4
cis-1,2-Dichloroethene
210
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
156-60-5
Diisopropyl ether
1860
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
108-20-3
Ethylbenzene
650
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
100-41-4
2-Butanone (MEK)
ND
ug/L
500
50
06/27/22 23:26
06/27/22 23:26
78-93-3
Methylene Chloride
ND
ug/L
250
50
06/27/22 23:26
06/27/22 23:26
75-09-2
4-Methyl-2-pentanone (MIBK)
ND
ug/L
500
50
06/27/22 23:26
06/27/22 23:26
108-10-1
Tetrahydrofuran
ND
ug/L
250
50
06/27/22 23:26
06/27/22 23:26
109-99-9
Toluene
4760
ug/L
50.0
50
06/27/22 23:26
06/27/22 23:26
108-88-3
Xylene (Total)
3070
ug/L
150
50
06/27/22 23:26
06/27/22 23:26
1330-20-7
2-Propanol
1260
ug/L
250
50
06/27/22 23:26
06/27/22 23:26
67-63-0
Surrogates
Toluene-d8 (S)
99.9
%
80.0-120
50
06/27/22 23:26
06/27/22 23:26
2037-26-5
1,2-Dichloroethane-d4 (S)
109
%
70.0-130
50
06/27/22 23:26
06/27/22 23:26
17060-07-I
4-Bromofluorobenzene (S)
96.4
%
77.0-126
50
06/27/22 23:26
06/27/22 23:26
460-00-4
R1
L0
C5
Sample: OKMN-GW-PW08-0-220615 Lab ID: 10613447002 Collected: 06/15/22 12:50 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Acetone
ND
ug/L
2500
50
06/27/22 23:49
06/27/22 23:49
67-64-1
Benzene
746
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
71-43-2
1,1-Dichloroethane
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
75-34-3
1,2-Dichloroethane
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
107-06-2
1,1-Dichloroethene
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
75-35-4
R1
cis-1,2-Dichloroethene
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
156-60-5
Diisopropyl ether
14000
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
108-20-3
E
Ethylbenzene
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
100-41-4
2-Butanone (MEK)
ND
ug/L
500
50
06/27/22 23:49
06/27/22 23:49
78-93-3
Methylene Chloride
ND
ug/L
250
50
06/27/22 23:49
06/27/22 23:49
75-09-2
L0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
500
50
06/27/22 23:49
06/27/22 23:49
108-10-1
Tetrahydrofuran
ND
ug/L
250
50
06/27/22 23:49
06/27/22 23:49
109-99-9
Toluene
ND
ug/L
50.0
50
06/27/22 23:49
06/27/22 23:49
108-88-3
Xylene (Total)
506
ug/L
150
50
06/27/22 23:49
06/27/22 23:49
1330-20-7
2-Propanol
251
ug/L
250
50
06/27/22 23:49
06/27/22 23:49
67-63-0
C5
Surrogates
Toluene-d8 (S)
99.0
%
80.0-120
50
06/27/22 23:49
06/27/22 23:49
2037-26-5
REPORT OF LABORATORY ANALYSIS
Date: 06/30/2022 01:48 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 5 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Sample: OKMN-GW-PW08-0-220615 Lab ID: 10613447002 Collected: 06/15/22 12:50 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Surrogates
1,2-Dichloroethane-d4 (S) 106 % 70.0-130 50 06/27/22 23:49 06/27/22 23:49 17060-07-0
4-Bromofluorobenzene (S) 98.1 % 77.0-126 50 06/27/22 23:49 06/27/22 23:49 460-00-4
ceAnalytical
www.pacaliki.coni
Sample: OKMN-GW-PW09-0-220615 Lab ID: 10613447003 Collected: 06/15/22 12:40 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Acetone
ND
ug/L
50.0
06/27/22
19:23
06/27/22
19:23
67-64-1
Benzene
17.6
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
71-43-2
1,1-Dichloroethane
7.03
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
75-34-3
1,2-Dichloroethane
23.6
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
107-06-2
1,1-Dichloroethene
ND
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
75-35-4
R1
cis-1,2-Dichloroethene
24.2
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
156-60-5
Diisopropyl ether
420
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
108-20-3
E
Ethylbenzene
3.48
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
100-41-4
2-Butanone (MEK)
ND
ug/L
10.0
06/27/22
19:23
06/27/22
19:23
78-93-3
Methylene Chloride
ND
ug/L
5.00
06/27/22
19:23
06/27/22
19:23
75-09-2
L0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
10.0
06/27/22
19:23
06/27/22
19:23
108-10-1
Tetrahydrofuran
ND
ug/L
5.00
06/27/22
19:23
06/27/22
19:23
109-99-9
Toluene
ND
ug/L
1.00
06/27/22
19:23
06/27/22
19:23
108-88-3
Xylene (Total)
6.54
ug/L
3.00
06/27/22
19:23
06/27/22
19:23
1330-20-7
2-Propanol
ND
ug/L
5.00
06/27/22
19:23
06/27/22
19:23
67-63-0
Surrogates
Toluene-d8 (S)
102
%
80.0-120
06/27/22
19:23
06/27/22
19:23
2037-26-5
1,2-Dichloroethane-d4 (S)
117
%
70.0-130
06/27/22
19:23
06/27/22
19:23
17060-07-0
4-Bromofluorobenzene (S)
101
%
77.0-126
06/27/22
19:23
06/27/22
19:23
460-00-4
Sample: OKMN-GW-W26R-0-220616 Lab ID: 10613447004 Collected: 06/16/22 11:35 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Acetone
ND
ug/L
50.0
06/27/22 19:45
06/27/22 19:45
67-64-1
Benzene
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
71-43-2
1,1-Dichloroethane
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
75-34-3
1,2-Dichloroethane
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
107-06-2
1,1-Dichloroethene
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
75-35-4
cis-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 19:45
06/27/22 19:45
156-60-5
REPORT OF LABORATORY ANALYSIS
Date: 06/30/2022 01:48 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 6 of 20
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Sample: OKMN-GW-W26R-0-220616 Lab ID: 10613447004 Collected: 06/16/22 11:35 Received: 06/17/22 15:40 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No.
Qual
VOA (GC/MS) 8260D
Analytical Method:
EPA8260D Preparation Method: 8260D
Pace National - Mt
Juliet
Diisopropyl ether
5.65
ug/L
1.00 1
06/27/22 19:45
06/27/22 19:45
108-20-3
Ethylbenzene
ND
ug/L
1.00 1
06/27/22 19:45
06/27/22 19:45
100-41-4
2-Butanone (MEK)
ND
ug/L
10.0 1
06/27/22 19:45
06/27/22 19:45
78-93-3
Methylene Chloride
ND
ug/L
5.00 1
06/27/22 19:45
06/27/22 19:45
75-09-2 L0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
10.0 1
06/27/22 19:45
06/27/22 19:45
108-10-1
Tetrahydrofuran
ND
ug/L
5.00 1
06/27/22 19:45
06/27/22 19:45
109-99-9
Toluene
ND
ug/L
1.00 1
06/27/22 19:45
06/27/22 19:45
108-88-3
Xylene (Total)
ND
ug/L
3.00 1
06/27/22 19:45
06/27/22 19:45
1330-20-7
2-Propanol
ND
ug/L
5.00 1
06/27/22 19:45
06/27/22 19:45
67-63-0
Surrogates
Toluene-d8 (S)
101
%
80.0-120 1
06/27/22 19:45
06/27/22 19:45
2037-26-5
1,2-Dichloroethane-d4 (S)
108
%
70.0-130 1
06/27/22 19:45
06/27/22 19:45
17060-07-0
4-Bromofluorobenzene (S)
101
%
77.0-126 1
06/27/22 19:45
06/27/22 19:45
460-00-4
Sample: OKMN-GW-W26R-DB-
Lab ID: 10613447005
Collected: 06/16/22 11:35
Received: 06/17/22 15:40 Matrix: Water
220616
Parameters
Results
Units
Report Limit DF
Prepared
Analyzed
CAS No. Qual
VOA (GC/MS) 8260D
Analytical Method:
EPA 8260D
Preparation Method: 8260D
Pace National - Mt
Juliet
Acetone
ND
ug/L
50.0
06/27/22 20:07
06/27/22 20:07
67-64-1
Benzene
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
71-43-2
1,1-Dichloroethane
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
75-34-3
1,2-Dichloroethane
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
107-06-2
1,1-Dichloroethene
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
75-35-4
cis-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
156-60-5
Diisopropyl ether
5.98
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
108-20-3
Ethylbenzene
ND
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
100-41-4
2-Butanone (MEK)
ND
ug/L
10.0
06/27/22 20:07
06/27/22 20:07
78-93-3
Methylene Chloride
ND
ug/L
5.00
06/27/22 20:07
06/27/22 20:07
75-09-2
4-Methyl-2-pentanone (MIBK)
ND
ug/L
10.0
06/27/22 20:07
06/27/22 20:07
108-10-1
Tetrahydrofuran
ND
ug/L
5.00
06/27/22 20:07
06/27/22 20:07
109-99-9
Toluene
1.23
ug/L
1.00
06/27/22 20:07
06/27/22 20:07
108-88-3
Xylene (Total)
ND
ug/L
3.00
06/27/22 20:07
06/27/22 20:07
1330-20-7
2-Propanol
ND
ug/L
5.00
06/27/22 20:07
06/27/22 20:07
67-63-0
Surrogates
Toluene-d8 (S)
100
%
80.0-120
06/27/22 20:07
06/27/22 20:07
2037-26-5
1,2-Dichloroethane-d4 (S)
105
%
70.0-130
06/27/22 20:07
06/27/22 20:07
17060-07-0
4-Bromofluorobenzene (S)
100
%
77.0-126
06/27/22 20:07
06/27/22 20:07
460-00-4
Date: 06/30/2022 01:48 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 7 of 20
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Sample: OKMN-GW-W26R-EB-
220616
Parameters
Lab ID: 10613447006 Collected: 06/16/22 11:30 Received: 06/17/22 15:40 Matrix: Water
Results
Units
Report Limit DF
Prepared
Analyzed
CAS No.
VOA (GC/MS) 8260D
Analytical Method:
EPA 8260D
Preparation Method: 8260D
Pace National - Mt
Juliet
Acetone
ND
ug/L
50.0
06/27/22 20:30
06/27/22 20:30
67-64-1
Benzene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
71-43-2
1,1-Dichloroethane
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
75-34-3
1,2-Dichloroethane
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
107-06-2
1,1-Dichloroethene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
75-35-4
cis-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
156-60-5
Diisopropyl ether
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
108-20-3
Ethylbenzene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
100-41-4
2-Butanone (MEK)
ND
ug/L
10.0
06/27/22 20:30
06/27/22 20:30
78-93-3
Methylene Chloride
ND
ug/L
5.00
06/27/22 20:30
06/27/22 20:30
75-09-2
4-Methyl-2-pentanone (MIBK)
ND
ug/L
10.0
06/27/22 20:30
06/27/22 20:30
108-10-1
Tetrahydrofuran
ND
ug/L
5.00
06/27/22 20:30
06/27/22 20:30
109-99-9
Toluene
ND
ug/L
1.00
06/27/22 20:30
06/27/22 20:30
108-88-3
Xylene (Total)
ND
ug/L
3.00
06/27/22 20:30
06/27/22 20:30
1330-20-7
2-Propanol
ND
ug/L
5.00
06/27/22 20:30
06/27/22 20:30
67-63-0
Surrogates
Toluene-d8 (S)
101
%
80.0-120
06/27/22 20:30
06/27/22 20:30
2037-26-5
1,2-Dichloroethane-d4 (S)
109
%
70.0-130
06/27/22 20:30
06/27/22 20:30
17060-07-0
4-Bromofluorobenzene (S)
98.3
%
77.0-126
06/27/22 20:30
06/27/22 20:30
460-00-4
Qual
R1
L0
Sample: OKMN-GW-W26R-TB-
220615
Lab ID: 10613447007 Collected: 06/15/22 08:00 Received: 06/17/22 15:40 Matrix: Water
Parameters
Results
Units
Report Limit DF
Prepared
Analyzed
CAS No.
Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Acetone
ND
ug/L
50.0
06/27/22
17
11
06/27/22
17
11
67-64-1
Benzene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
71-43-2
1,1-Dichloroethane
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
75-34-3
1,2-Dichloroethane
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
107-06-2
1,1-Dichloroethene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
75-35-4
cis-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
156-60-5
Diisopropyl ether
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
108-20-3
Ethylbenzene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
100-41-4
2-Butanone (MEK)
ND
ug/L
10.0
06/27/22
17
11
06/27/22
17
11
78-93-3
Methylene Chloride
ND
ug/L
5.00
06/27/22
17
11
06/27/22
17
11
75-09-2
4-Methyl-2-pentanone (MIBK)
ND
ug/L
10.0
06/27/22
17
11
06/27/22
17
11
108-10-1
Tetrahydrofuran
ND
ug/L
5.00
06/27/22
17
11
06/27/22
17
11
109-99-9
Toluene
ND
ug/L
1.00
06/27/22
17
11
06/27/22
17
11
108-88-3
Xylene (Total)
ND
ug/L
3.00
06/27/22
17
11
06/27/22
17
11
1330-20-7
2-Propanol
ND
ug/L
5.00
06/27/22
17
11
06/27/22
17
11
67-63-0
REPORT OF LABORATORY ANALYSIS
Date: 06/30/2022 01:48 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 8 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Sample: OKMN-GW-W26R-TB- Lab ID: 10613447007 Collected: 06/15/22 08:00 Received: 06/17/22 15:40 Matrix: Water
220615
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
VOA (GC/MS) 8260D Analytical Method: EPA8260D Preparation Method: 8260D
Pace National - Mt. Juliet
Surrogates
Toluene-d8 (S) 99.7 %
1,2-Dichloroethane-d4 (S) 104 %
4-Bromofluorobenzene (S) 94.9 %
ceAnalytical
www.pacaliki.coni
80.0-120 1 06/27/22 17:11 06/27/22 17:11 2037-26-5
70.0-130 1 06/27/22 17:11 06/27/22 17:11 17060-07-0
77.0-126 1 06/27/22 17:11 06/27/22 17:11 460-00-4
Date: 06/30/2022 01:48 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 9 of 20
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA
Project:
Pace Project No.
02181.202.045.1001 ConfOak
10613447
QC Batch: 1886254 Analysis Method: EPA8260D
QC Batch Method: 8260B Analysis Description: VOA (GC/MS) 8260D
Laboratory: Pace National - Mt. Juliet
10613447001, 10613447002, 10613447003, 10613447004, 10613447005, 10613447006, 10613447007
Associated Lab Samples:
METHOD BLANK: R3809194-3
Associated Lab Samples:
Matrix: Water
10613447001, 10613447002, 10613447003, 10613447004, 10613447005, 10613447006, 10613447007
Blank Reporting
Qualifiers
Parameter
Units
Result
Limit
Analyzed
Acetone
ug/L
ND
50.0
06/27/22
14:05
Benzene
ug/L
ND
1.00
06/27/22
14:05
1,1-Dichloroethane
ug/L
ND
1.00
06/27/22
14:05
1,2-Dichloroethane
ug/L
ND
1.00
06/27/22
14:05
1,1-Dichloroethene
ug/L
ND
1.00
06/27/22
14:05
cis-1,2-Dichloroethene
ug/L
ND
1.00
06/27/22
14:05
trans-1,2-Dichloroethene
ug/L
ND
1.00
06/27/22
14:05
Diisopropyl ether
ug/L
ND
1.00
06/27/22
14:05
Ethylbenzene
ug/L
ND
1.00
06/27/22
14:05
2-Butanone (MEK)
ug/L
ND
10.0
06/27/22
14:05
Methylene Chloride
ug/L
ND
5.00
06/27/22
14:05
4-Methyl-2-pentanone (MIBK)
ug/L
ND
10.0
06/27/22
14:05
Tetrahydrofuran
ug/L
ND
5.00
06/27/22
14:05
Toluene
ug/L
ND
1.00
06/27/22
14:05
Xylene (Total)
ug/L
ND
3.00
06/27/22
14:05
2-Propanol
ug/L
ND
5.00
06/27/22
14:05
Toluene-d8 (S)
%
101
80.0-120
06/27/22
14:05
1,2-Dichloroethane-d4 (S)
%
108
70.0-130
06/27/22
14:05
4-Bromofluorobenzene (S)
%
99.6
77.0-126
06/27/22
14:05
LABORATORY CONTROL SAMPLE & LCSD: R3809194-1
R3809194-4
Spike
LCS
LCSD
LCS
LCSD
% Rec
Max
Parameter
Units
Cone.
Result
Result
% Rec
% Rec
Limits
RPD
RPD
Acetone
ug/L
25.0
29.0
28.1
116
112
19.0-160
3.15
27
Benzene
ug/L
5.00
5.26
5.93
105
119
70.0-123
12.0
20
1,1-Dichloroethane
ug/L
5.00
5.21
5.96
104
119
70.0-126
13.4
20
1,2-Dichloroethane
ug/L
5.00
4.81
5.63
96.2
113
70.0-128
15.7
20
1,1-Dichloroethene
ug/L
5.00
4.79
5.89
95.8
118
71.0-124
20.6
20
cis-1,2-Dichloroethene
ug/L
5.00
4.93
5.73
98.6
115
73.0-120
15.0
20
trans-1,2-Dichloroethene
ug/L
5.00
4.92
5.77
98.4
115
73.0-120
15.9
20
Diisopropyl ether
ug/L
5.00
5.11
5.89
102
118
58.0-138
14.2
20
Ethylbenzene
ug/L
5.00
4.69
5.37
93.8
107
79.0-123
13.5
20
2-Butanone (MEK)
ug/L
25.0
29.1
27.6
116
110
44.0-160
5.29
20
Methylene Chloride
ug/L
5.00
5.35
6.12
107
122
67.0-120
13.4
20
4-Methyl-2-pentanone (MIBK)
ug/L
25.0
25.6
26.9
102
108
68.0-142
4.95
20
Tetrahydrofuran
ug/L
5.00
6.21
6.42
124
128
41.0-146
3.33
20
Toluene
ug/L
5.00
4.57
5.31
91.4
106
79.0-120
15.0
20
Xylene (Total)
ug/L
15.0
13.7
16.1
91.3
107
79.0-123
16.1
20
Toluene-d8 (S)
%
98.3
97.2
80.0-120
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
Date: 06/30/2022 01:48 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 10 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
LABORATORY CONTROL SAMPLE & LCSD: R3809194-1 R3809194-4
Spike LCS LCSD LCS LCSD % Rec Max
Parameter Units Cone. Result Result % Rec % Rec Limits RPD RPD Qualifiers
1,2-Dichloroethane-d4 (S) % 110 107 70.0-130
4-Bromofluorobenzene (S) % 97.2 97.1 77.0-126
ceAnalytical
www.pacaliki.coni
LABORATORY CONTROL SAMPLE: R3809194-2
Spike
LCS
LCS
% Rec
Parameter
Units
Cone.
Result
% Rec
Limits
2-Propanol
ug/L
50.0
71.3
143
10.0-160
Toluene-d8 (S)
%
101
80.0-120
1,2-Dichloroethane-d4 (S)
%
111
70.0-130
4-Bromofluorobenzene (S)
%
100
77.0-126
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 06/30/2022 01:48 PM without the written consent of Pace Analytical Services, LLC. Page 11 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALIFIERS
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
ANALYTE QUALIFIERS
C5 The reported concentration is an estimate. The continuing calibration standard associated with this data responded high.
Data is likely to show a high bias concerning the result.
E Analyte concentration exceeded the calibration range. The reported result is estimated.
L0 Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
R1 RPD value was outside control limits.
ceAnalytical
www.pacaliki.coni
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 06/30/2022 01:48 PM without the written consent of Pace Analytical Services, LLC. Page 12 of 20
-------
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: 02181.202.045.1001 ConfOak
Pace Project No.: 10613447
Analytical
Lab ID
Sample ID
QC Batch Method
QC Batch
Analytical Method
Batch
10613447001
OKMN-GW-PW07-0-220616
8260D
1886254
EPA
8260 D
1886254
10613447002
OKMN-GW-PW08-0-220615
8260D
1886254
EPA
8260 D
1886254
10613447003
OKMN-GW-PW09-0-220615
8260D
1886254
EPA
8260 D
1886254
10613447004
OKMN-GW-W26R-0-220616
8260D
1886254
EPA
8260 D
1886254
10613447005
OKMN-GW-W26R-DB-220616
8260D
1886254
EPA
8260 D
1886254
10613447006
OKMN-GW-W26R-EB-220616
8260D
1886254
EPA
8260 D
1886254
10613447007
OKMN-GW-W26R-TB-220615
8260D
1886254
EPA
8260 D
1886254
ceAnalytical
www.pacaliki.coni
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 06/30/2022 01:48 PM without the written consent of Pace Analytical Services, LLC. Page 13 of 20
-------
'ace Analytical
.pac&abs com
Section A
Required Client Informal
Company: WEST!
Address:
1400 WESTON WAY
WEST CHESTER, PA 19380
NATA
Phone: 610.701.36
79
Requested Due Date/T AT:
CHAIN-OF-CliSTODY / Analytical Request
The Chain-of-Custody is a LEGAL DOCUMENT. All relevant fields must be con
U0#:10613447
Section B
Required Project Information:
ON
:C.Data@westonsolutions.com
Fax: 610.701.3401
Standard TAT
Section C
Invoice Information:
10613447
Report To: John Sontag (John.sontag@westonsolutions.com
Attention:
c°PyTo: NATACC.Data@westonsolutions.com
Address: west Chester PA
Purchase Order No.: 0099345
Project Name: Confidential - Oakdale
Project Number 02181.202.045.1001
John Sontag
Company Name: Weston Solutions, Inc.
Pace Quote
Reference:
54334
pace project Sylvia Hunter
Manager
Pace Profile#: 39599 Line 1
REGULATORY AGENCY
r NPDES
r ust
X GROUNDWATER T DRINKING WATER
r RCRA r OTHER Mp<^
Site Location
STATE:
MN
%
S
in
H'
Section D
Required Client
SA
Sample IDs
WIPLE ID
,-z, 0-9 /,-)
MUST BE UNIQUE tissue
Valid Matrix Codes
MATRIX
CODE
DRINKING WATER
DW
WATER
WT
WASTE WATER
WW
PRODUCT
P
SOIL/SOLID
SL
OIL
OL
WIPE
WP
AIR
AR
OTHER
OT
TISSUE
TS
COLLECTED
COMPOSITE
START
TIME
COMPOSITE
END/GRAB
TIME
Preservatives
Requested Analysis Filtered (Y/N)
Pace Project No./ Lab I.D.
QKMN-GW-PW07-0-220616
06/16/22
QKMN-GW-PW08-0-220615
OKMN-GW-PW09-0-220615
OKMN-GW-W26R-0-220616
12:50
mt
06/15/22
¦^Pr
OKM N-GW-W26R-DB-220616
propyl alcohol. 2-butyl alcohol, methyl isobutyi
methylene chloride, MIBK, toluene, and total xylenes
Please send results to N
VTACC.Data@westonsolutions.com
o
SAMPLER NAME AND SIGNATURE
print Name of sampler: Denver Martin
SIGNATURE of SAMPLER:
DATE Signed
(MM/DD/YY):
6/17/22
O O
O
3 O
Ł
CD
W>
-------
DC#_TitIe: ENV-FRM-MIN4-0150 v05_Sample Condition Upon Receipt
(SCUR)
•¦¦¦•
Effective Date: 04/12/2022
Client Name:
Cty/^ftyi
Project #:
Courier?
~ Fed Ex
~ Pace
~ UPS
OSpeeDee
~ USPS
[^Commercial
Tracking Number:
./Qclient
See Exceptions
~ ENV-FRM-MIN4-
014Z
WO#il0613447
PM: SHI Due Dati
CLIENT: WESTON
86/29/22
. Custody Seal on Cooler/Bo* Present?
Packing Material: OBubble Wrap
Thermometer:
~Yes p*a
jZfiiubble Bags Qh'ow
.11(0461) o 12(1336) Ot3(0459) ~ 14(0254) ~ T5(0489) ~ T6J023S)
17 (0042) O 01339252/1710 ~ 122639316 0140792808
Seals Intact? OYes -0No Biological Tissue Frozen? flYes f~lNo-FlN/A
Oother; Temp Blank? Qno
OWet ~ Blue DNone ODry CfMelted
Type of
Ice:
Did Samples Originate in West Virginia? DYes ~» Were All Container Temps Taken? Oves D® Dn/a
Average Corrected Qsee Exceptions
I
Temp should be above freezing to 6°c Cooler Temp Read w/temo blank: -• V ' °C
Temp (no temp blank env-frm-min4-0142
onlv): °C Ql Container
Correction Factor: 1Y'Cooler Temp Corrected w/temo blank: ^ A °C
USDA Regulated Soil: (JZf N/A, water sample/Other: ) Date/Initials of Person Examining Contents:!
Did samples originate in a quarantine zone within the United States: AL, AR, CA, FL, GA, ID, LA. Did samples originate from a foreign source
MS, NC, NM, NY, OK, OR, SC, TN, TX or VA (check maps)? [ lYos f~lNo Hawaii and Puerto Rico)? flYes
ource (internationally,
~ No
including
If Yes to either question, fiii out a Regulated Soil Checklist ENV-FRM-MIN4-0154 and include with SCUR/COC paperwork.
Location (check one): ~ Duiuth ~^Minnespolrj ~ Virginia
COMMENTS:
Chain of Custody Present and Filled Out?
Efe
~ No
1.
Chain of Custody Relinauished?
k^Yes
~ No
2.
Samoler Name and/or Signature on COC?
Qfes
~ No
~n/a
3.
Samples Arrived within Hold Time?
0Yes
~No
4. If Fecal: n<8 hrs n>8hr, <24 hrs, i 1>24 hrs
Short Hold Time Analysis (<72 hr}?
~Yes
0No
5. ~Fecal Coiiforrti'OHPC ~Total Coliform/E coli ~BOD/cBOD QHex Chrome
1 iTurbiditv PlNitrate i iNitrrte FlOrthoohos nOther
Rush Turn Around Time Requested?
~Yes
Rwo
6.
Sufficient Volume?
'~No
7.
Correct Containers Used?
rPace Containers Used?
0?
~ No
riNo
8.
Containprs Intact?
riNo
9.
Field Filtered Volume Received for Dissolved Tests?
~Yes
~ no
D^/a
10. Is sediment visible in the dissolved container? [ |Y
es | INo
Is sufficient information available to reconcile the
samplestojhe COC?
Matrix:j/jWater DSoil QOil nother-
^es
~No
11. If no, write ID/ Date/Time on Container Below:
See Exception 1 1
ENV-FRM-M1N4-0142
All containers needing acid/base preservation have
been checked?
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNOj, H2S04, <2pH, NaOH >9 Sulfide, NaOH>10
Cyanide)
Exceptions: VOA, Coliform, TOC/DOC Oil and Grease,
DRO/8015 (water) and Dioxin/PFAS
~Yes
~Yes
~Yes
~ No
~ No
~ No
0N/A
J3Wa
12. Sample #
~ NaOH O UNO) Qh^SO, flzinc Acetate
Positive for Res FlYes See Exception ~
H ENV-FRM-MIN4-0142
Chlorine? 1 INo pH Paper Lot#
Res. Chlorine
0-6 Roll
0-6 Strip
0-14 Strip
Headspace in Methyl Mercury Container?
~Yes
~ No
0N/A
Extra labels present on soil VOA or WIDRO containers?
Headspace in VOA Vials {greater than 6mm)?
~Yes
~Yes
~ No
~ No
•Bjjl/A
0N/A
13.
See Exception 1 1
ENV-FRM-MIN4-0140
Trip Blank Present?
Trip Blank Custody Seals Present?
0Yes
BVes
~ No
~ No
~ N/A
~ n/A
Pace Trip Blank Lot # {if purchased):^
CLIENT NOTIFICATION/RESOLUTION
Person Contacted:
Comments/Resolution:
Date/Time:
Field Data Required? flYes j iNo
Project Manager Review:
Note: Whenever there is a discrepancy affecting North
preservative, out of temp, incorrect containers).
Qualtrax ID: 52742
Suhtuk/ Hiutfar-
Saroiina compliance samples,
Date:
6/20/22
a copy of this form will be sent to the North Carolina DEHNR Certificati*
Labeled by:
(MsC, mAolhold, incorrect
Page 1 of 1
Page 15 of 20
-------
K040
Internal Transfer Chain of Custody i
Ilililliiniinillll ~ -nP^o^eCOC.
Workorder: 10613447 Workorder Name: 02181.202.045.1001 Confidentia
State Of Origin: MN
Cert Needed:
XI Yes
Owner Received Date:
~ No
6/17/2022
^2
ce Analytical
Results Requested By: 6/29/2022
Sylvia Hunter
Pace Analytical Minnesota
1700 Elm Street
Minneapolis, MN 55414
Phone 1(612)607-1700
BSK&KatiBfiSKx
120^ Letonon Rd
K»Rg
-------
DC#_Title: ENV-FRM-MIN4-0150 v05_Sample Condition Upon Receipt
(SCUR)
Effective Date: 04/12/2022
Sample Condition Upon
Receipt
Courier:
Client Name:
jW hh
ZlfedEx
~ Pace
~ UPS
riSoeeDee
~ USPS
~Commercial
Tracking Number: T7f ^ C If ^ ~*l3>
Custody Seal on Cooler/Box Present?
Packing Material: ~ Bubble Wrap
n t-m,
Thermometer:
~ No
~ None
Project #:
~client
See Exceptions
~ ENV-FRM-MIN4-
0142
Seals Intact? 2
~other:
WO#:10613447
PM: SHI
CLIENT: WESTON
Due Date: 06/29/22
~ No
~ Tl(0461) ~ 12(1336) ~T3(0459) [2*T4(0254) ~ T5(0489) ~ T6(0235)
~ T7 (0042) ~ 01339252/1710 ~ 122639816 ~ 140792808
Type of
Ice:
Elwet"
Biological Tissue Frozen? I [Yes I Ino PtfJ/A
Temp Blank? Pnes f iNo
~ Blue QNone DOry QMeited
Old Samples Originate in West Virginia?
~Yes Were All Container Temps Taken? Dves Qno <3SJn/a
Temp should be above freezing to 6°C
Cooler Temp Read w/temp blank: 4. f
°C
Average Corrected
Temp (no temp blank
onlv): °C
~See Exceptions
ENV-FRM-MIN4-0142
~ l Container
Correction Factor: T ,r„ s
Cooler Temp Corrected w/temp blank: A. 1
°c
USDA Regulated Soil: ( 0N/A,(^atef)sample/Other: ) Date/Initials of Person Examining Contents: Id M 0 6/Pi f 7 I
Did samples originate in a quarantine zone within the United States: AL, AR, CA, FL, GA, ID, LA. Did samples originate from a foreign source (internationally, including
MS, NC, NM, NY, OK, OR, SC, TN, TX or VA (check maps)? [I]Yes d]No Hawaii and Puerto Rico)? d^es I Ino
If Yes to either question, fjil-6ut a Regulated Soil Checklist ENV-FRM-MIN4-0154 and include with SCUR/COC paperwork.
Location (check one): ~ Duluth IZT Minneapolis p.Virginia
COMMENTS:
Chain of Custody Present and Filled Out?
0Ygs^ Qno
1.
Chain of Custodv Relinauished?
0^es
JUNo
2.
Sampler Name and/or Sienature on COC?
C]Ł*-" DNo
0N/A
3.
Samples Arrived within Hold Time?
0Ves
~ No,
4. If Fecal: n<8 hrs n>8hr, <24 hrs, n>24 hrs
Short Hold Time Analysis (<72 hr)?
~Ves^
0No
5. LjFecal Coliform 1 ilil'C riTotal Coliform/E coli LjBOD/cBOD LjHex Chrome
riTurbiditv 1 1Nitrate 1 1 Nitrite 1 lOrthoohos nother
Rush Turn Around Time Requested?
~ No
6.
Sufficient Volume?
ITlYe^^ flNo
7.
Correct Containers Used?
-Pare Containers 1 kprl?
0Yer
PlW
~ No
riNo
8.
Containers Intart?
ITfYes
nwo
9.
Field Filtered Volume Received for Dissolved Tests?
~
-<
ft)
~ no
E1n/a
10. Is sediment visible in the dissolved container? | ]Y
es | |No
Is sufficient information available to reconcile the
samples topt&COC?
Matrix: [TlWater ~Soil ~ Oil ~other-
0Yes
~ No
11. If no, write ID/ Date/Time on Container Below:
See Exception 1 1
ENV-FRM-MIN4-0142
All containers needing acid/base preservation have
been checked?
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HN03, H2S04i <2pH, NaOH >9 Sulfide, NaOH>10
Cyanide)
Exceptions: (/Oh, Coliform, TOC/DOC Oil and Grease,
DRO/8015 (water) and Dioxin/PFAS
~Yes
~Yes
EjvC
~ No
~ No
~ no
0N/A
~n/a
12. Sample #
~ NaOH []] HNO3 nH2S04 I Izinc Acetate
Positive for Res. DVes See Exception D
bd ENV-FRM-MIN4-0142
Chlorine? | |No pH Paper Lot#
Res. Chlorine
0-6 Roll
0-6 Strip
0-14 Strip
Headspace in Methyl Mercury Container?
~ Yes
~ no
[2fr/^
Extra labels present on soil VOA or WIDRO containers?
Headspace in VOA Vials (greater than 6mm)?
~Yes
~Yes
~ Np
0No
0N/A
~ n/a
13.
See Exception 1 1
ENV-FRM-MIN4-0140
Trip Blank Present?
Trip Blank Custody Seals Present?
0^"
0Yes
~ No
~ No
< <
z z
~ ~
14.
Pace Trip Blank Lot # (if purchased): 3
-------
*aceAnalytical
www.ptctlibi.coni
Ship To:
Pace National
12065 Lebanon Rd
Mt. Juliet, TN 37122
Phone (615) 758-5858
INTER_LABORATORY WORK ORDER # 10613447
(To be completed by sending lab)
Sending Project No
10613447
Receiving Project No
Check Box for Consolidated Invoice
Date Prepared
06/20/22
REQUESTED COMPLETION DATE:
6/29/2022
Sending Region
IR10-Minnesota
Sending Project Mgr.
Sylvia Hunter
Receiving Region
IR850-Pace National
External Client
Weston Solutions, Inc.
State of Sample Origin
MN
QC Deliverable
STD REPORT
All questions should be addressed to sending project manager.
Requested Reportable Units
STD Report Wet or Dry Weight? Dry Weight | | IRWO Lab Need to run? Cert. Needed YSS
Special Requirements: RePOft C. QC Limits (C),Weston EauiS (85)
| GCMS Volatiles
34
" $70000)
$560.00)
$140.0q
* Custom Revenue Allocation
TOTAL
$700.00(
$560.00)
$140.00|
Return Samples to Sending Region: [ | Yes | | No
Original sent to the receiving lab - Copy kept at the sending lab.
When work completed; Original sent to the ABM at the receiving laboratory. Copies are made to corporate as needed,
Monday, June 20, 2022 2:05:40 PM
FMT-ALL-C-001 rev.00 24March2009
Page 1 of 1
Page 18 of 20
-------
*fJ*ace Analytical
vv.v it':*
Section A
Required Client Information.
Section B
Required Project Information:
CHA1N-OF CUSTODY / Analytical Request \Af\jk • 1 (1)C 1 3447
The Chain-of-Custody is a LEGAL DOCUMENT. All relevant fields must be cor lAI WTT * IVWiW • ¦
mil
Section C
invoice Information:
Company: WESTON
Report To. John Sontag (John.sontag@westonsolutions.com]
Atiantton. John Sontag
Address 1400 WESTON WAY
Copy To- n-\7**v. : west0M0l,ii)..t!S
Company Name: Weston Solutions, Inc.
WESTCHESTER, PA 19380
West Chester PA
Email To; \Ł< r L tcn-_uk _i
Purchase CUder No,: 0099345
PaceGuoie 54334
Reference:
Phone 610.701.3679
Fa*: 610.701.3401
prefect Name: Confidential - Oakdale
pace project Sylvia Hunter
Manager
Requested Due Date/TAT: Standard TAT
Project Number 02181.202.045.1001
PacePraflte#: 39599 Une 1
10613447
it
S
V
Section D
Required Client Information
SAMPLE ID
(A-Z, 0-S/,-)
Sampse IDs MUST BE UNIQUE tissue
Valid Matrix Codes
MATRIX
COPE
DOWvKJNQ WATER
DW
WATER
WT
WASTE WATER
WW
PRODUCT
p
SQSUSOUD
Si.
Ol
ot
WS»E
WP
AJft
Aff
OTHER
O?
ISSUE
TS
COLLECTED
COMPOSITE
START
Preservatives
REGULATORY AGENCY
f~ NPDES
r LIST
Sits Location
STATE:
X GROUNDWATER
r RCRA
Requested Analysis Filtered (YfN)
Pace Project NoV Lab I.D.
OKMN-GW-PW07-0-220616
OKMN-GW-PW08-0-220615
OKMN-GW-PW09-0-220615
OKMN-GW-W26R-0-220616
06/16/22
OKMN-GW-W26R-DB-220616
OKMN-GW-W26R-EB-220616
OKMN-GW-W26R-TB-220615
w
10
12
ADDmOfW COMMENTS
RELINQUISHED BY / AFF UATION
ACCEPTED BY / AFFILIATION
SAMPLE CONDITIONS
OKMW-Uk1- VOC» metelng Ac«eo«, 1.1-OCA i,i-DCŁ.c#«
Bafts-i.2-DCŁ. em^Dimyarse. ao&cpm amar. msk. ana tatraftyarafoms
,Ł*-r ¦¦
^777
yo
ymi
X
n)
y
OKMN-UK 2 VOC« mcfedtrtg aoprop^ atcotioi 2-&uty) wsoac». nm0*yt teobetyt
catbtnol (4-««lhyt-2-penb»ftoQ. mdhyteme ehtoncte. M&K, ttuene. and tea* xylene
Please send results to NATACC.Dala@\^stonsotut}oas.corn
T)
Q)
CQ
fl>
CD
O
SAMPLER NAME AND SIGNATURE
PWtfT Name of SAMPLER: Denver Martin
SIGNATURE of SAMPLER:
DATE Signed
:
II
s s
6/17/22
E
<5?
-------
tface
DC#_Title: ENV-FRM-MIN4-0150 v05_Sample Condition Upon Receipt
(SCUR)
in*.
Effective Date; 04/12/2022
Sample Condition Upon
Receipt
Courier:
Client Name:
(a^/Ła hy!
Project
~Fed Ex
~Pace
~UPS
riSoeeDee
~USPS
~Commercial
Tracking Number:
'QOient
See Exceptions
~ENV-FHM-MIN4-
0142
W0#11M13447
PM: SHI
CLIENT: WESTON
Due Date: 06/29/22
~Yes p«o
0Bubble Bags ONone
O n(04«lj ~ 12(1336} 0T3JO459) O«|02Sa| DTSfCWSS) ~ f«(0J35l
Custody Seal on Cooler/Bon Present?
Packing Material: [^Bubble Wrap
Thermometer:
Seals Intact? dYes ,0N° Biological Tissue Frozen? QVes 1 iNo -F~|n/A
Qother; m Temp Blank? -Pltes [~1nq
QWet Qalue QNone QDiv Dwelled
Typs of
Re:
Did Samples Originate in West Virginia? Ores Gno Were Ail Container Temps Taken? Ores
On/a
remp should be above freezing to 6"C Cooler Temp Read w/temo blank:
j
°c
Average Corrected
Temp (no temp blank
ontv): °C
QSee Exceptions
ENV-FRM-MIN4-0142
f~ll Container
Correction Factor: P/cAj-' Cooler Temp Corrected w/temp blank:
_ \
\
• \
°c
U5DA Regulated Soil: (JZf N/A, water sample/Other: ) Date/Initials of Person Examining Contents:^- 1/')Y
Old samples originate In a quarantine zone within the United States: At, AR, CA, R, GA, 10, LA. Did samples originate from a foreign source (internationally, including
MS, NC, NM, NY, OK, OR, SC, TN, TX or VA (check maps)? I lYes f~lNo Hawaii and Puerto Rico}? ClVes QNo
If Yes to either question, fill out a Regulated Soil Checklist ENV-FRM-MIN4-Q154 and include with SCUR/COC paperwork.
Location (check one): ~ Duluth ~.Minneapolis ~ Virginia
COMMENTS:
Chain of Custody Present and Filled Out?
gftfis
CDno
1.
Chain of Custody Reiinouished?
PjYes
~No
2.
Samoler Name and/or Signature on COC?
LoVes
MNo
~n/a
3.
Samples Arrived within Hold Time?
0Ves
~ no
4. If Fecal; n<8 hrs l~]>8hr, <24 hrs, n>24 hrs
Short Hold Time Analysis (<72 hr)?
~Yes
,0No
S, |_jFecal Coliform'QHPC 1 iTotal Coiiform/E coll ~BOD/cBOD Qhcx Chrome
PlTurbidltv flNitrate i iNttrite flOrthoDhos riother
Rush Turn Around Time Requested?
~Yes
Rno
6.
Sufficient Volume?
0Ves
~No
7.
Correct Containers Used?
-Parp Container* llsprl?
¦Cfvss
Pfws
~No
~No
8.
Container* Intact?
PlYes
~No
_9l.
Field Filtered Volume Received for Dissolved Tests?
~Yes
~ No
Qf^A
10. Is sediment visible in the dissolved container? 1 (V
es Dno
Is sufficient information available to reconcile the
samples to the COC?
Matrix: jZfwater Qsoil QOil ~other-
^j'ves
~No
11. If no, write ID/ Date/Time on Container Below:
See Exception li
ENV-FRM-MIN4-0142
All containers needing acid/base preservation have
been checked?
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HN03) H2SO„, <2pH, NaOH >9 Sulfide, NaOH>10
Cyanide)
Exceptions: VOA, Coliform, TOC/DOC Oil and Grease,
DRO/8015 (water) and Dioxin/PFAS
~Yes
~Yes
~Yes
~No
~no
~no
0N/A
JZJn/a
An/a
12. Sample H
0 NaOH Q HNOi QHsSOj CjZinc Acetate
Positive for Res. ClYes See Exception D
H ENV-FRM-MIN4-0142
Chlorine? 1 INo pH Paper Lot#
Res. Chlorine
0-6 Roll
0-6 Strip
0-14 Strip
Headspace in Methyl Mercury Container?
~Yes
~no
0N/A
Extra labels present on soil VOA or WIDRO containers?
Headspace in VOA Vials (greater than 6mm)?
~Yes
~no
~no
0N/A
13.
See Exception 1 1
ENV-FRM-M1N4-0140
Trip Blank Present?
Trip Blank Custody Seals Present?
,0Y«
(3^ es
~No
~No
~N/A
~n/a
14' ov.v-Kh.
Pace Trip Blank Lot ff (if purchased): ->1** \f t
/:/ jr
- > ' \
CLIENT NOTIFICATION/RESOLUTION
Person Contacted:
Comments/Resolution:
Date/Time:
Field Data Required? DYes Qno
Project Manager Review:
Date:
Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNH Certificar.iorfpf{ic([(ity, °jt hold. incorrect
preservative, out of temp, incorrect containers), Labeled by;
Qualtrax ID: 52742
Page 1 of 1
Page 20 of 20
-------
Restoring Resource Efficiency
APPENDIX C.2
OCTOBER - NOVEMBER 2022 GROUNDWATER SAMPLING EVENT
-------
veAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
November 23, 2022
John Sontag
Weston Solutions, Inc.
1400 Weston Way
West Chester, PA 19380
RE: Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Dear John Sontag:
Enclosed are the analytical results for sample(s) received by the laboratory on November 03, 2022. The results relate only
to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the
laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report.
The test results provided in this final report were generated by each of the following laboratories within the Pace Network:
• Pace Analytical Services - Green Bay
This report was revised on November 23, 2022, to update the collected time on Pace samples 10632375004-007, and
remove the 8260D results reported from the Minneapolis lab..
If you have any questions concerning this report, please feel free to contact me.
Sylvia Hunter
sylvia.hunter@pacelabs.com
1(612)607-1700
Project Manager
Enclosures
Sincerely,
REPORT OF LABORATORY ANALYSIS
^ORAt0^
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
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CERTIFICATIONS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Pace Analytical Services Green Bay
1241 Bellevue Street, Green Bay, Wl 54302
Florida/NELAP Certification #: E87948
Illinois Certification #: 200050
Kentucky UST Certification #: 82
Louisiana Certification #: 04168
Minnesota Certification #: 055-999-334
New York Certification #: 12064
North Dakota Certification #: R-150
South Carolina Certification #: 83006001
Texas Certification #: T104704529-21-8
Virginia VELAP Certification ID: 11873
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Wisconsin DATCP Certification #: 105-444
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without the written consent of Pace Analytical Services, LLC.
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SAMPLE SUMMARY
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Lab ID
Sample ID
Matrix
Date Collected
Date Received
10632375001
OKMN -GW-P W01-0-221101
Water
11/01/22 13:45
11/03/22 12:16
10632375002
OKMN-GW-PW02-0-221101
Water
11/01/22 14:05
11/03/22 12:16
10632375003
OKMN-GW-TRIP01-221031
Water
10/31/22 07:00
11/03/22 12:16
10632375004
OKMN-GW-PW03-0-221101
Water
11/01/22 17:05
11/03/22 12:16
10632375005
OKMN -GW-P W04-0 -221101
Water
11/01/22 14:20
11/03/22 12:16
10632375006
OKMN-GW-PW06-0-221101
Water
11/01/22 14:35
11/03/22 12:16
10632375007
OKMN -GW-P W11-0-221101
Water
11/01/22 15:15
11/03/22 12:16
10632375008
OKMN -GW-W26 R-0-221101
Water
11/01/22 11:45
11/03/22 12:16
10632375009
OKMN-GW-W26R-DB-221101
Water
11/01/22 11:45
11/03/22 12:16
10632375010
OKMN-GW-PW07-0-221031
Water
10/31/22 13:30
11/03/22 12:16
10632375011
OKMN-GW-PW08-0-221031
Water
10/31/22 10:15
11/03/22 12:16
10632375012
OKMN-GW-PW09-0-221031
Water
10/31/22 11:30
11/03/22 12:16
10632375013
OKMN -GW-W25 -0-221102
Water
11/02/22 17:36
11/03/22 12:16
10632375014
OKMN -GW-W31-0-221101
Water
11/01/22 10:40
11/03/22 12:16
10632375015
OKMN-GW-W215-0-221102
Water
11/02/22 13:30
11/03/22 12:16
10632375016
OKMN-GW-W2003-0-221031
Water
10/31/22 14:05
11/03/22 12:16
10632375017
OKMN-GW-W2008-0-221031
Water
10/31/22 14:35
11/03/22 12:16
10632375018
OKMN-GW-W2008-DB-221031
Water
10/31/22 14:35
11/03/22 12:16
10632375019
OKMN-GW-W3-0-221031
Water
10/31/22 16:00
11/03/22 12:16
10632375020
OKMN-GW-W8-0-221101
Water
11/01/22 10:15
11/03/22 12:16
10632375021
OKMN -GW-P W10-0 -221101
Water
11/01/22 14:55
11/03/22 12:16
10632375022
OKMN -GW-W6102-0-221103
Water
11/03/22 06:45
11/03/22 12:16
10632375023
OKMN -GW-W8-E B01 -221101
Water
11/01/22 09:20
11/03/22 12:16
10632375024
OKMN-GW-W25-EB02-221102
Water
11/02/22 14:40
11/03/22 12:16
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REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
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SAMPLE ANALYTE COUNT
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Analytes
Lab ID Sample ID Method Analysts Reported Laboratory
10632375001
OKMN -GW-P W01-0-221101
EPA 8260
EIB
19
PASI-G
10632375002
OKMN-GW-PW02-0-221101
EPA 8260
EIB
19
PASI-G
10632375003
OKMN-GW-TRIP01-221031
EPA 8260
EIB
19
PASI-G
10632375004
OKMN-GW-PW03-0-221101
EPA 8260
EIB
19
PASI-G
10632375005
OKMN -GW-P W04-0 -221101
EPA 8260
EIB
19
PASI-G
10632375006
OKMN-GW-PW06-0-221101
EPA 8260
EIB
19
PASI-G
10632375007
OKMN -GW-P W11-0-221101
EPA 8260
EIB
19
PASI-G
10632375008
OKMN -GW-W26 R-0-221101
EPA 8260
EIB
19
PASI-G
10632375009
OKMN-GW-W26R-DB-221101
EPA 8260
EIB
19
PASI-G
10632375010
OKMN-GW-PW07-0-221031
EPA 8260
EIB
19
PASI-G
10632375011
OKMN-GW-PW08-0-221031
EPA 8260
EIB
19
PASI-G
10632375012
OKMN-GW-PW09-0-221031
EPA 8260
EIB
19
PASI-G
10632375013
OKMN -GW-W25 -0-221102
EPA 8260
EIB
19
PASI-G
10632375014
OKMN -GW-W31-0-221101
EPA 8260
EIB
19
PASI-G
10632375015
OKMN-GW-W215-0-221102
EPA 8260
EIB
19
PASI-G
10632375016
OKMN-GW-W2003-0-221031
EPA 8260
EIB
19
PASI-G
10632375017
OKMN-GW-W2008-0-221031
EPA 8260
EIB
19
PASI-G
10632375018
OKMN-GW-W2008-DB-221031
EPA 8260
EIB
19
PASI-G
10632375019
OKMN-GW-W3-0-221031
EPA 8260
EIB
19
PASI-G
10632375020
OKMN-GW-W8-0-221101
EPA 8260
EIB
19
PASI-G
10632375021
OKMN -GW-P W10-0 -221101
EPA 8260
EIB
19
PASI-G
10632375022
OKMN -GW-W6102-0-221103
EPA 8260
EIB
19
PASI-G
10632375023
OKMN -GW-W8-E B01 -221101
EPA 8260
EIB
19
PASI-G
10632375024
OKMN-GW-W25-EB02-221102
EPA 8260
EIB
19
PASI-G
PASI-G = Pace Analytical Services - Green Bay
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REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
Page 4 of 70
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Minneapolis, MN 55414
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PROJECT NARRATIVE
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Date: November 23, 2022
VOCs were analyzed by 8260D.
ceAnalytical
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REPORT OF LABORATORY ANALYSIS
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without the written consent of Pace Analytical Services, LLC.
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Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
PROJECT NARRATIVE
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Method: EPA 8260
Description: 8260 MSV Oxygenates
Client: Weston Solutions, Inc.
Date: November 23, 2022
ceAnalytical
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General Information:
24 samples were analyzed for EPA 8260 by Pace Analytical Services Green Bay. All samples were received in acceptable condition
with any exceptions noted below or on the chain-of custody and/or the sample condition upon receipt form (SCUR) attached at the end
of this report.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
QC Batch: 431056
v1: The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated
samples may have a high bias.
• BLANK (Lab ID: 2482131)
•Acetone
• OKMN-GW-PW01-0-221101 (Lab ID: 10632375001)
•Acetone
• OKMN-GW-PW02-0-221101 (Lab ID: 10632375002)
•Acetone
• OKMN-GW-PW03-0-221101 (Lab ID: 10632375004)
•Acetone
• OKMN-GW-PW04-0-221101 (Lab ID: 10632375005)
•Acetone
• OKMN-GW-PW06-0-221101 (Lab ID: 10632375006)
•Acetone
• OKMN-GW-PW07-0-221031 (Lab ID: 10632375010)
•Acetone
• OKMN-GW-PW08-0-221031 (Lab ID: 10632375011)
•Acetone
• OKMN-GW-PW09-0-221031 (Lab ID: 10632375012)
•Acetone
• OKMN-GW-PW11-0-221101 (Lab ID: 10632375007)
•Acetone
• OKMN-GW-TRIP01 -221031 (Lab ID: 10632375003)
•Acetone
• OKMN-GW-W26R-0-221101 (Lab ID: 10632375008)
•Acetone
• OKMN-GW-W26R-DB-221101 (Lab ID: 10632375009)
•Acetone
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 6 of 70
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Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
PROJECT NARRATIVE
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Method: EPA 8260
Description: 8260 MSV Oxygenates
Client: Weston Solutions, Inc.
Date: November 23, 2022
QC Batch: 431109
v1: The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated
samples may have a high bias.
• BLANK (Lab ID: 2482484)
• Diisopropyl ether
• OKMN-GW-PW10-0-221101 (Lab ID: 10632375021)
• Diisopropyl ether
• OKMN-GW-W2003-0-221031 (Lab ID: 10632375016)
• Diisopropyl ether
• OKMN-GW-W2008-0-221031 (Lab ID: 10632375017)
• Diisopropyl ether
• OKMN-GW-W2008-DB-221031 (Lab ID: 10632375018)
• Diisopropyl ether
• OKMN-GW-W215-0-221102 (Lab ID: 10632375015)
• Diisopropyl ether
• OKMN-GW-W25-0-221102 (Lab ID: 10632375013)
• Diisopropyl ether
• OKMN-GW-W25-EB02-221102 (Lab ID: 10632375024)
• Diisopropyl ether
• OKMN-GW-W3-0-221031 (Lab ID: 10632375019)
• Diisopropyl ether
• OKMN-GW-W31-0-221101 (Lab ID: 10632375014)
• Diisopropyl ether
• OKMN-GW-W6102-0-221103 (Lab ID: 10632375022)
• Diisopropyl ether
• OKMN-GW-W8-0-221101 (Lab ID: 10632375020)
• Diisopropyl ether
• OKMN-GW-W8-EB01 -221101 (Lab ID: 10632375023)
• Diisopropyl ether
ceAnalytical
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Internal Standards:
All internal standards were within QC limits with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 7 of 70
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Pace Analytical Services, LLC
1700 Elm Street
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(612)607-1700
PROJECT NARRATIVE
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Method: EPA 8260
Description: 8260 MSV Oxygenates
Client: Weston Solutions, Inc.
Date: November 23, 2022
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
ceAnalytical
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REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 8 of 70
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iceAnalytical
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Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW01-0-221101
Lab ID:
10632375001
Collected:
11/01/22 13:45
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
20.0
5.9
20
11/10/22
14:44
75-34-3
1,1-Dichloroethene
ND
ug/L
20.0
11.6
20
11/10/22
14:44
75-35-4
1,2-Dichloroethane
ND
ug/L
20.0
5.8
20
11/10/22
14:44
107-06-2
2-Butanone (MEK)
ND
ug/L
500
130
20
11/10/22
14:44
78-93-3
2-Propanol
ND
ug/L
2000
197
20
11/10/22
14:44
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
500
119
20
11/10/22
14:44
108-10-1
Acetone
ND
ug/L
500
173
20
11/10/22
14:44
67-64-1 v1
Benzene
28.9
ug/L
20.0
5.9
20
11/10/22
14:44
71-43-2
Diisopropyl ether
2800
ug/L
100
22.0
20
11/10/22
14:44
108-20-3
Ethylbenzene
ND
ug/L
20.0
6.5
20
11/10/22
14:44
100-41-4
Methylene Chloride
ND
ug/L
100
6.4
20
11/10/22
14:44
75-09-2
Tetrahydrofuran
ND
ug/L
500
48.4
20
11/10/22
14:44
109-99-9
Toluene
ND
ug/L
20.0
5.8
20
11/10/22
14:44
108-88-3
Xylene (Total)
ND
ug/L
60.0
21.0
20
11/10/22
14:44
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
20.0
9.4
20
11/10/22
14:44
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
20.0
10.6
20
11/10/22
14:44
156-60-5
Surrogates
Toluene-d8 (S)
99
%
70-130
20
11/10/22
14:44
2037-26-5
4-Bromofluorobenzene (S)
102
%
70-130
20
11/10/22
14:44
460-00-4
1,2-Dichlorobenzene-d4 (S)
96
%
70-130
20
11/10/22
14:44
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 9 of 70
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Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW02-0-221101
Lab ID:
10632375002
Collected:
11/01/22 14:05
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
125
37.0
125
11/10/22 13:07
75-34-3
1,1-Dichloroethene
ND
ug/L
125
72.8
125
11/10/22 13:07
75-35-4
1,2-Dichloroethane
ND
ug/L
125
36.4
125
11/10/22 13:07
107-06-2
2-Butanone (MEK)
4390
ug/L
3120
815
125
11/10/22 13:07
78-93-3
2-Propanol
ND
ug/L
12500
1230
125
11/10/22 13:07
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
3120
744
125
11/10/22 13:07
108-10-1
Acetone
5610
ug/L
3120
1080
125
11/10/22 13:07
67-64-1 v1
Benzene
ND
ug/L
125
36.9
125
11/10/22 13:07
71-43-2
Diisopropyl ether
13700
ug/L
625
138
125
11/10/22 13:07
108-20-3
Ethylbenzene
ND
ug/L
125
40.6
125
11/10/22 13:07
100-41-4
Methylene Chloride
ND
ug/L
625
39.9
125
11/10/22 13:07
75-09-2
Tetrahydrofuran
ND
ug/L
3120
302
125
11/10/22 13:07
109-99-9
Toluene
145
ug/L
125
36.0
125
11/10/22 13:07
108-88-3
Xylene (Total)
ND
ug/L
375
131
125
11/10/22 13:07
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
125
58.9
125
11/10/22 13:07
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
125
66.0
125
11/10/22 13:07
156-60-5
Surrogates
Toluene-d8 (S)
98
%
70-130
125
11/10/22 13:07
2037-26-5
4-Bromofluorobenzene (S)
104
%
70-130
125
11/10/22 13:07
460-00-4
1,2-Dichlorobenzene-d4 (S)
101
%
70-130
125
11/10/22 13:07
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 10 of 70
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Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-TRIP01-221031
Lab ID:
10632375003
Collected:
10/31/22 07:00
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
10:50
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
10:50
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
10:50
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
10:50
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
10:50
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
10:50
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
10:50
67-64-1 v1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
10:50
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
10:50
108-20-3
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
10:50
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
10:50
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
10:50
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
10:50
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
10:50
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
10:50
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
10:50
156-60-5
Surrogates
Toluene-d8 (S)
95
%
70-130
1
11/10/22
10:50
2037-26-5
4-Bromofluorobenzene (S)
105
%
70-130
1
11/10/22
10:50
460-00-4
1,2-Dichlorobenzene-d4 (S)
99
%
70-130
1
11/10/22
10:50
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 11 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW03-0-221101
Lab ID:
10632375004
Collected:
11/01/22 17:05
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
100
29.6
100
11/10/22 13:46
75-34-3
1,1-Dichloroethene
ND
ug/L
100
58.2
100
11/10/22 13:46
75-35-4
1,2-Dichloroethane
ND
ug/L
100
29.2
100
11/10/22 13:46
107-06-2
2-Butanone (MEK)
ND
ug/L
2500
652
100
11/10/22 13:46
78-93-3
2-Propanol
ND
ug/L
10000
985
100
11/10/22 13:46
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
2500
595
100
11/10/22 13:46
108-10-1
Acetone
ND
ug/L
2500
864
100
11/10/22 13:46
67-64-1 v1
Benzene
385
ug/L
100
29.5
100
11/10/22 13:46
71-43-2
Diisopropyl ether
14200
ug/L
500
110
100
11/10/22 13:46
108-20-3
Ethylbenzene
ND
ug/L
100
32.5
100
11/10/22 13:46
100-41-4
Methylene Chloride
ND
ug/L
500
31.9
100
11/10/22 13:46
75-09-2
Tetrahydrofuran
ND
ug/L
2500
242
100
11/10/22 13:46
109-99-9
Toluene
ND
ug/L
100
28.8
100
11/10/22 13:46
108-88-3
Xylene (Total)
ND
ug/L
300
105
100
11/10/22 13:46
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
100
47.2
100
11/10/22 13:46
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
100
52.8
100
11/10/22 13:46
156-60-5
Surrogates
Toluene-d8 (S)
94
%
70-130
100
11/10/22 13:46
2037-26-5
4-Bromofluorobenzene (S)
103
%
70-130
100
11/10/22 13:46
460-00-4
1,2-Dichlorobenzene-d4 (S)
103
%
70-130
100
11/10/22 13:46
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 12 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW04-0-221101
Lab ID:
10632375005
Collected:
11/01/22 14:20
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
100
29.6
100
11/10/22 14:05
75-34-3
1,1-Dichloroethene
ND
ug/L
100
58.2
100
11/10/22 14:05
75-35-4
1,2-Dichloroethane
ND
ug/L
100
29.2
100
11/10/22 14:05
107-06-2
2-Butanone (MEK)
ND
ug/L
2500
652
100
11/10/22 14:05
78-93-3
2-Propanol
ND
ug/L
10000
985
100
11/10/22 14:05
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
2500
595
100
11/10/22 14:05
108-10-1
Acetone
ND
ug/L
2500
864
100
11/10/22 14:05
67-64-1 v1
Benzene
161
ug/L
100
29.5
100
11/10/22 14:05
71-43-2
Diisopropyl ether
14000
ug/L
500
110
100
11/10/22 14:05
108-20-3
Ethylbenzene
ND
ug/L
100
32.5
100
11/10/22 14:05
100-41-4
Methylene Chloride
ND
ug/L
500
31.9
100
11/10/22 14:05
75-09-2
Tetrahydrofuran
ND
ug/L
2500
242
100
11/10/22 14:05
109-99-9
Toluene
152
ug/L
100
28.8
100
11/10/22 14:05
108-88-3
Xylene (Total)
ND
ug/L
300
105
100
11/10/22 14:05
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
100
47.2
100
11/10/22 14:05
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
100
52.8
100
11/10/22 14:05
156-60-5
Surrogates
Toluene-d8 (S)
98
%
70-130
100
11/10/22 14:05
2037-26-5
4-Bromofluorobenzene (S)
103
%
70-130
100
11/10/22 14:05
460-00-4
1,2-Dichlorobenzene-d4 (S)
99
%
70-130
100
11/10/22 14:05
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 13 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW06-0-221101
Lab ID:
10632375006
Collected:
11/01/22 14:35
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
10.0
3.0
10
11/10/22 15:40
75-34-3
1,1-Dichloroethene
ND
ug/L
10.0
5.8
10
11/10/22 15:40
75-35-4
1,2-Dichloroethane
ND
ug/L
10.0
2.9
10
11/10/22 15:40
107-06-2
2-Butanone (MEK)
ND
ug/L
250
65.2
10
11/10/22 15:40
78-93-3
2-Propanol
ND
ug/L
1000
98.5
10
11/10/22 15:40
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
250
59.5
10
11/10/22 15:40
108-10-1
Acetone
ND
ug/L
250
86.4
10
11/10/22 15:40
67-64-1 v1
Benzene
21.6
ug/L
10.0
3.0
10
11/10/22 15:40
71-43-2
Diisopropyl ether
2400
ug/L
50.0
11.0
10
11/10/22 15:40
108-20-3
Ethylbenzene
ND
ug/L
10.0
3.3
10
11/10/22 15:40
100-41-4
Methylene Chloride
ND
ug/L
50.0
3.2
10
11/10/22 15:40
75-09-2
Tetrahydrofuran
ND
ug/L
250
24.2
10
11/10/22 15:40
109-99-9
Toluene
10.0
ug/L
10.0
2.9
10
11/10/22 15:40
108-88-3
Xylene (Total)
ND
ug/L
30.0
10.5
10
11/10/22 15:40
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
10.0
4.7
10
11/10/22 15:40
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
10.0
5.3
10
11/10/22 15:40
156-60-5
Surrogates
Toluene-d8 (S)
96
%
70-130
10
11/10/22 15:40
2037-26-5
4-Bromofluorobenzene (S)
103
%
70-130
10
11/10/22 15:40
460-00-4
1,2-Dichlorobenzene-d4 (S)
102
%
70-130
10
11/10/22 15:40
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 14 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW11-0-221101
Lab ID:
10632375007
Collected:
11/01/22 15:15
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
25.0
7.4
25
11/10/22 14:25
75-34-3
1,1-Dichloroethene
ND
ug/L
25.0
14.6
25
11/10/22 14:25
75-35-4
1,2-Dichloroethane
ND
ug/L
25.0
7.3
25
11/10/22 14:25
107-06-2
2-Butanone (MEK)
ND
ug/L
625
163
25
11/10/22 14:25
78-93-3
2-Propanol
ND
ug/L
2500
246
25
11/10/22 14:25
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
625
149
25
11/10/22 14:25
108-10-1
Acetone
ND
ug/L
625
216
25
11/10/22 14:25
67-64-1 v1
Benzene
64.1
ug/L
25.0
7.4
25
11/10/22 14:25
71-43-2
Diisopropyl ether
3760
ug/L
125
27.5
25
11/10/22 14:25
108-20-3
Ethylbenzene
ND
ug/L
25.0
8.1
25
11/10/22 14:25
100-41-4
Methylene Chloride
ND
ug/L
125
8.0
25
11/10/22 14:25
75-09-2
Tetrahydrofuran
ND
ug/L
625
60.5
25
11/10/22 14:25
109-99-9
Toluene
ND
ug/L
25.0
7.2
25
11/10/22 14:25
108-88-3
Xylene (Total)
ND
ug/L
75.0
26.2
25
11/10/22 14:25
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
25.0
11.8
25
11/10/22 14:25
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
25.0
13.2
25
11/10/22 14:25
156-60-5
Surrogates
Toluene-d8 (S)
97
%
70-130
25
11/10/22 14:25
2037-26-5
4-Bromofluorobenzene (S)
104
%
70-130
25
11/10/22 14:25
460-00-4
1,2-Dichlorobenzene-d4 (S)
100
%
70-130
25
11/10/22 14:25
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 15 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W26R-0-221101
Lab ID:
10632375008
Collected:
11/01/22 11:45
Received:
11/03/22 12:16
Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
11
29
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
11
29
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
11
29
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
11
29
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
11
29
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
11
29
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
11
29
67-64-1 v1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
11
29
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
11
29
108-20-3
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
11
29
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
11
29
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
11
29
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
11
29
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
11
29
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
11
29
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
11
29
156-60-5
Surrogates
Toluene-d8 (S)
100
%
70-130
1
11/10/22
11
29
2037-26-5
4-Bromofluorobenzene (S)
104
%
70-130
1
11/10/22
11
29
460-00-4
1,2-Dichlorobenzene-d4 (S)
103
%
70-130
1
11/10/22
11
29
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 16 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W26R-DB-
Lab ID:
10632375009
Collected:
11/01/22 11:45
Received:
11/03/22 12:16 Matrix: Water
221101
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
12:27
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
12:27
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
12:27
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
12:27
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
12:27
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
12:27
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
12:27
67-64-1 v1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
12:27
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
12:27
108-20-3
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
12:27
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
12:27
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
12:27
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
12:27
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
12:27
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
12:27
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
12:27
156-60-5
Surrogates
Toluene-d8 (S)
99
%
70-130
1
11/10/22
12:27
2037-26-5
4-Bromofluorobenzene (S)
106
%
70-130
1
11/10/22
12:27
460-00-4
1,2-Dichlorobenzene-d4 (S)
102
%
70-130
1
11/10/22
12:27
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 17 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW07-0-221031
Lab ID:
10632375010
Collected:
10/31/22 13:30
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
20.0
5.9
20
11/10/22
15:04
75-34-3
1,1-Dichloroethene
ND
ug/L
20.0
11.6
20
11/10/22
15:04
75-35-4
1,2-Dichloroethane
ND
ug/L
20.0
5.8
20
11/10/22
15:04
107-06-2
2-Butanone (MEK)
ND
ug/L
500
130
20
11/10/22
15:04
78-93-3
2-Propanol
ND
ug/L
2000
197
20
11/10/22
15:04
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
500
119
20
11/10/22
15:04
108-10-1
Acetone
ND
ug/L
500
173
20
11/10/22
15:04
67-64-1 v1
Benzene
124
ug/L
20.0
5.9
20
11/10/22
15:04
71-43-2
Diisopropyl ether
3310
ug/L
100
22.0
20
11/10/22
15:04
108-20-3
Ethylbenzene
92.9
ug/L
20.0
6.5
20
11/10/22
15:04
100-41-4
Methylene Chloride
ND
ug/L
100
6.4
20
11/10/22
15:04
75-09-2
Tetrahydrofuran
ND
ug/L
500
48.4
20
11/10/22
15:04
109-99-9
Toluene
ND
ug/L
20.0
5.8
20
11/10/22
15:04
108-88-3
Xylene (Total)
2110
ug/L
60.0
21.0
20
11/10/22
15:04
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
20.0
9.4
20
11/10/22
15:04
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
20.0
10.6
20
11/10/22
15:04
156-60-5
Surrogates
Toluene-d8 (S)
96
%
70-130
20
11/10/22
15:04
2037-26-5
4-Bromofluorobenzene (S)
102
%
70-130
20
11/10/22
15:04
460-00-4
1,2-Dichlorobenzene-d4 (S)
98
%
70-130
20
11/10/22
15:04
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 18 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW08-0-221031
Lab ID:
10632375011
Collected:
10/31/22 10:15
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
125
37.0
125
11/10/22 13:26
75-34-3
1,1-Dichloroethene
ND
ug/L
125
72.8
125
11/10/22 13:26
75-35-4
1,2-Dichloroethane
ND
ug/L
125
36.4
125
11/10/22 13:26
107-06-2
2-Butanone (MEK)
ND
ug/L
3120
815
125
11/10/22 13:26
78-93-3
2-Propanol
ND
ug/L
12500
1230
125
11/10/22 13:26
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
3120
744
125
11/10/22 13:26
108-10-1
Acetone
ND
ug/L
3120
1080
125
11/10/22 13:26
67-64-1 v1
Benzene
836
ug/L
125
36.9
125
11/10/22 13:26
71-43-2
Diisopropyl ether
19100
ug/L
625
138
125
11/10/22 13:26
108-20-3
Ethylbenzene
ND
ug/L
125
40.6
125
11/10/22 13:26
100-41-4
Methylene Chloride
ND
ug/L
625
39.9
125
11/10/22 13:26
75-09-2
Tetrahydrofuran
ND
ug/L
3120
302
125
11/10/22 13:26
109-99-9
Toluene
ND
ug/L
125
36.0
125
11/10/22 13:26
108-88-3
Xylene (Total)
676
ug/L
375
131
125
11/10/22 13:26
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
125
58.9
125
11/10/22 13:26
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
125
66.0
125
11/10/22 13:26
156-60-5
Surrogates
Toluene-d8 (S)
98
%
70-130
125
11/10/22 13:26
2037-26-5
4-Bromofluorobenzene (S)
100
%
70-130
125
11/10/22 13:26
460-00-4
1,2-Dichlorobenzene-d4 (S)
101
%
70-130
125
11/10/22 13:26
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 19 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW09-0-221031
Lab ID:
10632375012
Collected:
10/31/22 11:30
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
12:47
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
12:47
75-35-4
1,2-Dichloroethane
2.3
ug/L
1.0
0.29 1
11/10/22
12:47
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
12:47
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
12:47
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
12:47
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
12:47
67-64-1 v1
Benzene
1.3
ug/L
1.0
0.30 1
11/10/22
12:47
71-43-2
Diisopropyl ether
19.2
ug/L
5.0
1.1 1
11/10/22
12:47
108-20-3
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
12:47
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
12:47
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
12:47
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
12:47
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
12:47
1330-20-7
cis-1,2-Dichloroethene
1.0
ug/L
1.0
0.47 1
11/10/22
12:47
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
12:47
156-60-5
Surrogates
Toluene-d8 (S)
97
%
70-130
1
11/10/22
12:47
2037-26-5
4-Bromofluorobenzene (S)
104
%
70-130
1
11/10/22
12:47
460-00-4
1,2-Dichlorobenzene-d4 (S)
101
%
70-130
1
11/10/22
12:47
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 20 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W25-0-221102
Lab ID:
10632375013
Collected:
11/02/22 17:36
Received:
11/03/22 12:16
Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
11
13
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
11
13
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
11
13
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
11
13
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
11
13
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
11
13
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
11
13
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
11
13
71-43-2
Diisopropyl ether
53.0
ug/L
5.0
1.1 1
11/10/22
11
13
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
11
13
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
11
13
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
11
13
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
11
13
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
11
13
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
11
13
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
11
13
156-60-5
Surrogates
Toluene-d8 (S)
105
%
70-130
1
11/10/22
11
13
2037-26-5
4-Bromofluorobenzene (S)
115
%
70-130
1
11/10/22
11
13
460-00-4
1,2-Dichlorobenzene-d4 (S)
102
%
70-130
1
11/10/22
11
13
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 21 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W31-0-221101
Lab ID:
10632375014
Collected:
11/01/22 10:40
Received:
11/03/22 12:16
Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
11
34
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
11
34
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
11
34
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
11
34
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
11
34
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
11
34
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
11
34
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
11
34
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
11
34
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
11
34
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
11
34
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
11
34
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
11
34
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
11
34
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
11
34
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
11
34
156-60-5
Surrogates
Toluene-d8 (S)
105
%
70-130
1
11/10/22
11
34
2037-26-5
4-Bromofluorobenzene (S)
114
%
70-130
1
11/10/22
11
34
460-00-4
1,2-Dichlorobenzene-d4 (S)
103
%
70-130
1
11/10/22
11
34
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 22 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W215-0-221102
Lab ID:
10632375015
Collected:
11/02/22 13:30
Received:
11/03/22 12:16
Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
11
54
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
11
54
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
11
54
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
11
54
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
11
54
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
11
54
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
11
54
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
11
54
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
11
54
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
11
54
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
11
54
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
11
54
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
11
54
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
11
54
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
11
54
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
11
54
156-60-5
Surrogates
Toluene-d8 (S)
104
%
70-130
1
11/10/22
11
54
2037-26-5
4-Bromofluorobenzene (S)
114
%
70-130
1
11/10/22
11
54
460-00-4
1,2-Dichlorobenzene-d4 (S)
104
%
70-130
1
11/10/22
11
54
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 23 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W2003-0-
Lab ID:
10632375016
Collected:
10/31/22 14:05
Received:
11/03/22 12:16 Matrix: Water
221031
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
2.0
0.59
2
11/10/22
14:40
75-34-3
1,1-Dichloroethene
ND
ug/L
2.0
1.2
2
11/10/22
14:40
75-35-4
1,2-Dichloroethane
ND
ug/L
2.0
0.58
2
11/10/22
14:40
107-06-2
2-Butanone (MEK)
ND
ug/L
50.0
13.0
2
11/10/22
14:40
78-93-3
2-Propanol
ND
ug/L
200
19.7
2
11/10/22
14:40
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
50.0
11.9
2
11/10/22
14:40
108-10-1
Acetone
ND
ug/L
50.0
17.3
2
11/10/22
14:40
67-64-1
Benzene
ND
ug/L
2.0
0.59
2
11/10/22
14:40
71-43-2
Diisopropyl ether
181
ug/L
10.0
2.2
2
11/10/22
14:40
108-20-3 v1
Ethylbenzene
ND
ug/L
2.0
0.65
2
11/10/22
14:40
100-41-4
Methylene Chloride
ND
ug/L
10.0
0.64
2
11/10/22
14:40
75-09-2
Tetrahydrofuran
ND
ug/L
50.0
4.8
2
11/10/22
14:40
109-99-9
Toluene
ND
ug/L
2.0
0.58
2
11/10/22
14:40
108-88-3
Xylene (Total)
ND
ug/L
6.0
2.1
2
11/10/22
14:40
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
2.0
0.94
2
11/10/22
14:40
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
2.0
1.1
2
11/10/22
14:40
156-60-5
Surrogates
Toluene-d8 (S)
105
%
70-130
2
11/10/22
14:40
2037-26-5
4-Bromofluorobenzene (S)
114
%
70-130
2
11/10/22
14:40
460-00-4
1,2-Dichlorobenzene-d4 (S)
101
%
70-130
2
11/10/22
14:40
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 24 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W2008-0-
Lab ID:
10632375017
Collected:
10/31/22 14:35
Received:
11/03/22 12:16
Matrix: Water
221031
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
12
15
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
12
15
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
12
15
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
12
15
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
12
15
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
12
15
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
12
15
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
12
15
71-43-2
Diisopropyl ether
192
ug/L
5.0
1.1 1
11/10/22
12
15
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
12
15
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
12
15
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
12
15
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
12
15
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
12
15
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
12
15
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
12
15
156-60-5
Surrogates
Toluene-d8 (S)
106
%
70-130
1
11/10/22
12
15
2037-26-5
4-Bromofluorobenzene (S)
123
%
70-130
1
11/10/22
12
15
460-00-4
1,2-Dichlorobenzene-d4 (S)
103
%
70-130
1
11/10/22
12
15
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 25 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W2008-DB-
Lab ID:
10632375018
Collected:
10/31/22 14:35
Received:
11/03/22 12:16 Matrix: Water
221031
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
5.0
1.5
5
11/10/22
14:20
75-34-3
1,1-Dichloroethene
ND
ug/L
5.0
2.9
5
11/10/22
14:20
75-35-4
1,2-Dichloroethane
ND
ug/L
5.0
1.5
5
11/10/22
14:20
107-06-2
2-Butanone (MEK)
ND
ug/L
125
32.6
5
11/10/22
14:20
78-93-3
2-Propanol
ND
ug/L
500
49.3
5
11/10/22
14:20
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
125
29.8
5
11/10/22
14:20
108-10-1
Acetone
ND
ug/L
125
43.2
5
11/10/22
14:20
67-64-1
Benzene
ND
ug/L
5.0
1.5
5
11/10/22
14:20
71-43-2
Diisopropyl ether
607
ug/L
25.0
5.5
5
11/10/22
14:20
108-20-3 v1
Ethylbenzene
ND
ug/L
5.0
1.6
5
11/10/22
14:20
100-41-4
Methylene Chloride
ND
ug/L
25.0
1.6
5
11/10/22
14:20
75-09-2
Tetrahydrofuran
ND
ug/L
125
12.1
5
11/10/22
14:20
109-99-9
Toluene
ND
ug/L
5.0
1.4
5
11/10/22
14:20
108-88-3
Xylene (Total)
ND
ug/L
15.0
5.2
5
11/10/22
14:20
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
5.0
2.4
5
11/10/22
14:20
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
5.0
2.6
5
11/10/22
14:20
156-60-5
Surrogates
Toluene-d8 (S)
104
%
70-130
5
11/10/22
14:20
2037-26-5
4-Bromofluorobenzene (S)
116
%
70-130
5
11/10/22
14:20
460-00-4
1,2-Dichlorobenzene-d4 (S)
104
%
70-130
5
11/10/22
14:20
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 26 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W3-0-221031
Lab ID:
10632375019
Collected:
10/31/22 16:00
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
2.0
0.59
2
11/10/22 15:01
75-34-3
1,1-Dichloroethene
ND
ug/L
2.0
1.2
2
11/10/22 15:01
75-35-4
1,2-Dichloroethane
ND
ug/L
2.0
0.58
2
11/10/22 15:01
107-06-2
2-Butanone (MEK)
ND
ug/L
50.0
13.0
2
11/10/22 15:01
78-93-3
2-Propanol
ND
ug/L
200
19.7
2
11/10/22 15:01
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
50.0
11.9
2
11/10/22 15:01
108-10-1
Acetone
ND
ug/L
50.0
17.3
2
11/10/22 15:01
67-64-1
Benzene
ND
ug/L
2.0
0.59
2
11/10/22 15:01
71-43-2
Diisopropyl ether
288
ug/L
10.0
2.2
2
11/10/22 15:01
108-20-3 v1
Ethylbenzene
ND
ug/L
2.0
0.65
2
11/10/22 15:01
100-41-4
Methylene Chloride
ND
ug/L
10.0
0.64
2
11/10/22 15:01
75-09-2
Tetrahydrofuran
ND
ug/L
50.0
4.8
2
11/10/22 15:01
109-99-9
Toluene
ND
ug/L
2.0
0.58
2
11/10/22 15:01
108-88-3
Xylene (Total)
ND
ug/L
6.0
2.1
2
11/10/22 15:01
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
2.0
0.94
2
11/10/22 15:01
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
2.0
1.1
2
11/10/22 15:01
156-60-5
Surrogates
Toluene-d8 (S)
106
%
70-130
2
11/10/22 15:01
2037-26-5
4-Bromofluorobenzene (S)
113
%
70-130
2
11/10/22 15:01
460-00-4
1,2-Dichlorobenzene-d4 (S)
102
%
70-130
2
11/10/22 15:01
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 27 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W8-0-221101
Lab ID:
10632375020
Collected:
11/01/22 10:15
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
12:36
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
12:36
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
12:36
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
12:36
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
12:36
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
12:36
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
12:36
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
12:36
71-43-2
Diisopropyl ether
14.2
ug/L
5.0
1.1 1
11/10/22
12:36
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
12:36
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
12:36
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
12:36
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
12:36
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
12:36
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
12:36
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
12:36
156-60-5
Surrogates
Toluene-d8 (S)
102
%
70-130
1
11/10/22
12:36
2037-26-5
4-Bromofluorobenzene (S)
114
%
70-130
1
11/10/22
12:36
460-00-4
1,2-Dichlorobenzene-d4 (S)
102
%
70-130
1
11/10/22
12:36
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 28 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-PW10-0-221101
Lab ID:
10632375021
Collected:
11/01/22 14:55
Received:
11/03/22 12:16 Matrix: Water
Report
Parameters
Results
Units
Limit
MDL
DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
20.0
5.9
20
11/10/22 13:59
75-34-3
1,1-Dichloroethene
ND
ug/L
20.0
11.6
20
11/10/22 13:59
75-35-4
1,2-Dichloroethane
ND
ug/L
20.0
5.8
20
11/10/22 13:59
107-06-2
2-Butanone (MEK)
ND
ug/L
500
130
20
11/10/22 13:59
78-93-3
2-Propanol
ND
ug/L
2000
197
20
11/10/22 13:59
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
500
119
20
11/10/22 13:59
108-10-1
Acetone
ND
ug/L
500
173
20
11/10/22 13:59
67-64-1
Benzene
81.3
ug/L
20.0
5.9
20
11/10/22 13:59
71-43-2
Diisopropyl ether
3430
ug/L
100
22.0
20
11/10/22 13:59
108-20-3 v1
Ethylbenzene
ND
ug/L
20.0
6.5
20
11/10/22 13:59
100-41-4
Methylene Chloride
ND
ug/L
100
6.4
20
11/10/22 13:59
75-09-2
Tetrahydrofuran
ND
ug/L
500
48.4
20
11/10/22 13:59
109-99-9
Toluene
33.9
ug/L
20.0
5.8
20
11/10/22 13:59
108-88-3
Xylene (Total)
66.7
ug/L
60.0
21.0
20
11/10/22 13:59
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
20.0
9.4
20
11/10/22 13:59
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
20.0
10.6
20
11/10/22 13:59
156-60-5
Surrogates
Toluene-d8 (S)
103
%
70-130
20
11/10/22 13:59
2037-26-5
4-Bromofluorobenzene (S)
113
%
70-130
20
11/10/22 13:59
460-00-4
1,2-Dichlorobenzene-d4 (S)
99
%
70-130
20
11/10/22 13:59
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 29 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W6102-0-
Lab ID:
10632375022
Collected:
11/03/22 06:45
Received:
11/03/22 12:16 Matrix: Water
221103
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
12:57
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
12:57
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
12:57
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
12:57
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
12:57
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
12:57
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
12:57
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
12:57
71-43-2
Diisopropyl ether
83.1
ug/L
5.0
1.1 1
11/10/22
12:57
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
12:57
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
12:57
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
12:57
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
12:57
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
12:57
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
12:57
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
12:57
156-60-5
Surrogates
Toluene-d8 (S)
105
%
70-130
1
11/10/22
12:57
2037-26-5 HS
4-Bromofluorobenzene (S)
115
%
70-130
1
11/10/22
12:57
460-00-4
1,2-Dichlorobenzene-d4 (S)
103
%
70-130
1
11/10/22
12:57
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 30 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W8-EB01-
Lab ID:
10632375023
Collected:
11/01/22 09:20
Received:
11/03/22 12:16
Matrix: Water
221101
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
13
17
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
13
17
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
13
17
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
13
17
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
13
17
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
13
17
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
13
17
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
13
17
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
13
17
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
13
17
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
13
17
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
13
17
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
13
17
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
13
17
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
13
17
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
13
17
156-60-5
Surrogates
Toluene-d8 (S)
104
%
70-130
1
11/10/22
13
17
2037-26-5
4-Bromofluorobenzene (S)
114
%
70-130
1
11/10/22
13
17
460-00-4
1,2-Dichlorobenzene-d4 (S)
99
%
70-130
1
11/10/22
13
17
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 31 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
ANALYTICAL RESULTS
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Sample: OKMN-GW-W25-EB02-
Lab ID:
10632375024
Collected:
11/02/22 14:40
Received:
11/03/22 12:16 Matrix: Water
221102
Report
Parameters
Results
Units
Limit
MDL DF
Prepared
Analyzed
CAS No. Qual
8260 MSV Oxygenates
Analytical Method: EPA 8260
Pace Analytical Services
Green Bay
1,1-Dichloroethane
ND
ug/L
1.0
0.30 1
11/10/22
13:38
75-34-3
1,1-Dichloroethene
ND
ug/L
1.0
0.58 1
11/10/22
13:38
75-35-4
1,2-Dichloroethane
ND
ug/L
1.0
0.29 1
11/10/22
13:38
107-06-2
2-Butanone (MEK)
ND
ug/L
25.0
6.5 1
11/10/22
13:38
78-93-3
2-Propanol
ND
ug/L
100
9.9 1
11/10/22
13:38
67-63-0
4-Methyl-2-pentanone (MIBK)
ND
ug/L
25.0
6.0 1
11/10/22
13:38
108-10-1
Acetone
ND
ug/L
25.0
8.6 1
11/10/22
13:38
67-64-1
Benzene
ND
ug/L
1.0
0.30 1
11/10/22
13:38
71-43-2
Diisopropyl ether
ND
ug/L
5.0
1.1 1
11/10/22
13:38
108-20-3 v1
Ethylbenzene
ND
ug/L
1.0
0.33 1
11/10/22
13:38
100-41-4
Methylene Chloride
ND
ug/L
5.0
0.32 1
11/10/22
13:38
75-09-2
Tetrahydrofuran
ND
ug/L
25.0
2.4 1
11/10/22
13:38
109-99-9
Toluene
ND
ug/L
1.0
0.29 1
11/10/22
13:38
108-88-3
Xylene (Total)
ND
ug/L
3.0
1.0 1
11/10/22
13:38
1330-20-7
cis-1,2-Dichloroethene
ND
ug/L
1.0
0.47 1
11/10/22
13:38
156-59-2
trans-1,2-Dichloroethene
ND
ug/L
1.0
0.53 1
11/10/22
13:38
156-60-5
Surrogates
Toluene-d8 (S)
104
%
70-130
1
11/10/22
13:38
2037-26-5
4-Bromofluorobenzene (S)
113
%
70-130
1
11/10/22
13:38
460-00-4
1,2-Dichlorobenzene-d4 (S)
101
%
70-130
1
11/10/22
13:38
2199-69-1
Date: 11/23/2022 01:14 PM
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 32 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
QC Batch:
QC Batch Method:
Associated Lab Samples:
431056 Analysis Method: EPA 8260
EPA 8260 Analysis Description: 8260 MSV Oxygenates
Laboratory: Pace Analytical Services - Green Bay
10632375001, 10632375002, 10632375003, 10632375004, 10632375005, 10632375006, 10632375007,
10632375008, 10632375009, 10632375010, 10632375011, 10632375012
METHOD BLANK: 2482131
Associated Lab Samples:
10632375001, 10632375002,
10632375008, 10632375009,
Matrix: Water
10632375003, 10632375004, 10632375005, 10632375006, 10632375007,
10632375010, 10632375011, 10632375012
Blank Reporting
Parameter
Units
Result
Limit
MDL
Analyzed
1,1-Dichloroethane
ug/L
ND
1.0
0.30
11/10/22 08:21
1,1-Dichloroethene
ug/L
ND
1.0
0.58
11/10/22 08:21
1,2-Dichloroethane
ug/L
ND
1.0
0.29
11/10/22 08:21
2-Butanone (MEK)
ug/L
ND
25.0
6.5
11/10/22 08:21
2-Propanol
ug/L
ND
100
9.9
11/10/22 08:21
4-Methyl-2-pentanone (MIBK)
ug/L
ND
25.0
6.0
11/10/22 08:21
Acetone
ug/L
ND
25.0
8.6
11/10/22 08:21
Benzene
ug/L
ND
1.0
0.30
11/10/22 08:21
cis-1,2-Dichloroethene
ug/L
ND
1.0
0.47
11/10/22 08:21
Diisopropyl ether
ug/L
ND
5.0
1.1
11/10/22 08:21
Ethylbenzene
ug/L
ND
1.0
0.33
11/10/22 08:21
Methylene Chloride
ug/L
ND
5.0
0.32
11/10/22 08:21
Tetrahydrofuran
ug/L
ND
25.0
2.4
11/10/22 08:21
Toluene
ug/L
ND
1.0
0.29
11/10/22 08:21
trans-1,2-Dichloroethene
ug/L
ND
1.0
0.53
11/10/22 08:21
Xylene (Total)
ug/L
ND
3.0
1.0
11/10/22 08:21
1,2-Dichlorobenzene-d4 (S)
%
102
70-130
11/10/22 08:21
4-Bromofluorobenzene (S)
%
104
70-130
11/10/22 08:21
Toluene-d8 (S)
%
99
70-130
11/10/22 08:21
Qualifiers
v1
LABORATORY CONTROL SAMPLE: 2482132
Spike LCS LCS % Rec
Parameter
Units
Cone.
Result
% Rec
Limits
1,1-Dichloroethane
ug/L
50
56.7
113
70-130
1,1-Dichloroethene
ug/L
50
61.6
123
74-131
1,2-Dichloroethane
ug/L
50
56.2
112
70-137
Benzene
ug/L
50
57.4
115
70-130
cis-1,2-Dichloroethene
ug/L
50
54.3
109
70-130
Ethylbenzene
ug/L
50
52.6
105
80-120
Methylene Chloride
ug/L
50
56.6
113
70-130
Toluene
ug/L
50
52.1
104
80-120
trans-1,2-Dichloroethene
ug/L
50
57.8
116
70-130
Xylene (Total)
ug/L
150
154
102
70-130
1,2-Dichlorobenzene-d4 (S)
%
99
70-130
4-Bromofluorobenzene (S)
%
101
70-130
Toluene-d8 (S)
%
96
70-130
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
Date: 11/23/2022 01:14 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 33 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
QC Batch:
QC Batch Method:
Associated Lab Samples:
431109 Analysis Method: EPA 8260
EPA 8260 Analysis Description: 8260 MSV Oxygenates
Laboratory: Pace Analytical Services - Green Bay
10632375013, 10632375014, 10632375015, 10632375016, 10632375017, 10632375018, 10632375019,
10632375020, 10632375021, 10632375022, 10632375023, 10632375024
METHOD BLANK: 2482484
Associated Lab Samples:
Matrix: Water
10632375013, 10632375014, 10632375015, 10632375016, 10632375017, 10632375018, 10632375019,
10632375020, 10632375021, 10632375022, 10632375023, 10632375024
Blank Reporting
Parameter
Units
Result
Limit
MDL
Analyzed
1,1-Dichloroethane
ug/L
ND
1.0
0.30
11/10/22 08:53
1,1-Dichloroethene
ug/L
ND
1.0
0.58
11/10/22 08:53
1,2-Dichloroethane
ug/L
ND
1.0
0.29
11/10/22 08:53
2-Butanone (MEK)
ug/L
ND
25.0
6.5
11/10/22 08:53
2-Propanol
ug/L
ND
100
9.9
11/10/22 08:53
4-Methyl-2-pentanone (MIBK)
ug/L
ND
25.0
6.0
11/10/22 08:53
Acetone
ug/L
ND
25.0
8.6
11/10/22 08:53
Benzene
ug/L
ND
1.0
0.30
11/10/22 08:53
cis-1,2-Dichloroethene
ug/L
ND
1.0
0.47
11/10/22 08:53
Diisopropyl ether
ug/L
ND
5.0
1.1
11/10/22 08:53 v1
Ethylbenzene
ug/L
ND
1.0
0.33
11/10/22 08:53
Methylene Chloride
ug/L
ND
5.0
0.32
11/10/22 08:53
Tetrahydrofuran
ug/L
ND
25.0
2.4
11/10/22 08:53
Toluene
ug/L
ND
1.0
0.29
11/10/22 08:53
trans-1,2-Dichloroethene
ug/L
ND
1.0
0.53
11/10/22 08:53
Xylene (Total)
ug/L
ND
3.0
1.0
11/10/22 08:53
1,2-Dichlorobenzene-d4 (S)
%
103
70-130
11/10/22 08:53
4-Bromofluorobenzene (S)
%
118
70-130
11/10/22 08:53
Toluene-d8 (S)
%
108
70-130
11/10/22 08:53
Qualifiers
LABORATORY CONTROL SAMPLE: 2482485
Spike LCS LCS % Rec
Parameter
Units
Cone.
Result
% Rec
Limits
1,1-Dichloroethane
ug/L
50
60.5
121
70-130
1,1-Dichloroethene
ug/L
50
54.0
108
74-131
1,2-Dichloroethane
ug/L
50
53.3
107
70-137
Benzene
ug/L
50
56.8
114
70-130
cis-1,2-Dichloroethene
ug/L
50
54.7
109
70-130
Ethylbenzene
ug/L
50
57.4
115
80-120
Methylene Chloride
ug/L
50
54.1
108
70-130
Toluene
ug/L
50
57.6
115
80-120
trans-1,2-Dichloroethene
ug/L
50
55.3
111
70-130
Xylene (Total)
ug/L
150
162
108
70-130
1,2-Dichlorobenzene-d4 (S)
%
99
70-130
4-Bromofluorobenzene (S)
%
113
70-130
Toluene-d8 (S)
%
106
70-130
Qualifiers
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
REPORT OF LABORATORY ANALYSIS
Date: 11/23/2022 01:14 PM
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.
Page 34 of 70
-------
veAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALIFIERS
Project:
OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot.
ND - Not Detected at or above adjusted reporting limit.
TNTC - Too Numerous To Count
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL-Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and
bias for a specific analyte in a specific matrix.
S - Surrogate
1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is
a combined concentration.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as
"Total" may vary slightly from the sum of the reported component parameters.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
WORKORDER QUALIFIERS
WO: 10632375
[1] VOCs were analyzed by 8260D.
ANALYTE QUALIFIERS
HS
v1
Results are from sample aliquot taken from VOA vial with headspace (air bubble greater than 6 mm diameter).
The continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the
associated samples may have a high bias.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/23/2022 01:14 PM without the written consent of Pace Analytical Services, LLC. Page 35 of 70
-------
iceAnalytical
www.pacaliki.coni
Pace Analytical Services, LLC
1700 Elm Street
Minneapolis, MN 55414
(612)607-1700
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Project: OKMN Semiannual VOC-Revised Report
Pace Project No.: 10632375
Lab ID
Sample ID
QC Batch Method
QC Batch
10632375001
OKMN -GW-P W01-0-221101
EPA
8260
431056
10632375002
OKMN-GW-PW02-0-221101
EPA
8260
431056
10632375003
OKMN-GW-TRIP01-221031
EPA
8260
431056
10632375004
OKMN-GW-PW03-0-221101
EPA
8260
431056
10632375005
OKMN -GW-P W04-0 -221101
EPA
8260
431056
10632375006
OKMN-GW-PW06-0-221101
EPA
8260
431056
10632375007
OKMN -GW-P W11-0-221101
EPA
8260
431056
10632375008
OKMN -GW-W26 R-0-221101
EPA
8260
431056
10632375009
OKMN-GW-W26R-DB-221101
EPA
8260
431056
10632375010
OKMN-GW-PW07-0-221031
EPA
8260
431056
10632375011
OKMN-GW-PW08-0-221031
EPA
8260
431056
10632375012
OKMN-GW-PW09-0-221031
EPA
8260
431056
10632375013
OKMN -GW-W25 -0-221102
EPA
8260
431109
10632375014
OKMN -GW-W31-0-221101
EPA
8260
431109
10632375015
OKMN-GW-W215-0-221102
EPA
8260
431109
10632375016
OKMN-GW-W2003-0-221031
EPA
8260
431109
10632375017
OKMN-GW-W2008-0-221031
EPA
8260
431109
10632375018
OKMN-GW-W2008-DB-221031
EPA
8260
431109
10632375019
OKMN-GW-W3-0-221031
EPA
8260
431109
10632375020
OKMN-GW-W8-0-221101
EPA
8260
431109
10632375021
OKMN -GW-P W10-0 -221101
EPA
8260
431109
10632375022
OKMN -GW-W6102-0-221103
EPA
8260
431109
10632375023
OKMN -GW-W8-E B01 -221101
EPA
8260
431109
10632375024
OKMN-GW-W25-EB02-221102
EPA
8260
431109
Analytical Method
Analytical
Batch
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
Date: 11/23/2022 01:14 PM without the written consent of Pace Analytical Services, LLC. Page 36 of 70
-------
Section A
Required Client Information:
CHAIN-OF-C
The Chain-of-Custo
Submitting a sample via Oils chain of custody constitutes acknowledgment and acceptance of
klOtt: 10632375
nun
Section B
Required Project lnfomatioii:
10632375
Sv
invoice Information:
accurately.
is-standard-terms.pdf.
Of
Company: Weston Solutions
Report To: Denver Martin
Attention:
Address: 1401 Weston Way
Copy To:
Company Name:
West Chester, Pa 19380
Address:
lUlllllilllWlltilliHIIIII 1 hi UNM
Email: denver.martin@westonsolutions.com
Purchase Order #:
Pace Quote:
Phone: (715)222-7116 |Fax
Project Name: OKMN Semiannual VOC
Paoe Project Manager svlvia.hunter(3)Dacelabs.conri
Requested Due Date:
Project#:
Pace Profile afc 32910 line 113
MN
ui
t-
SAMPLE ID
One Character per box.
(A-Z, 0-9 /, -)
Sample Ids must be unique
MATRIX CODE
Drinking Vkftter 0W
Water WT
Waste Wartef WW
Product P
SoUfSofci SL
on OL
Wipe WP
Air AR
Other OT
Tissue TS
COLLECTED
START
DATE
TIME
Preservatives
Trtp*BteRks tzmbziiott
WT
OKMN-GWPW01-0-22
01
ivr
OKMN-GW-PW02-0-22
OKMN-GW-PWQ3-0-22
0KMN-GW-PWD4-0-22
WT &
wrC
0KMN-GW-PVUD6-0-22
OKMN-GW-PW11-0-22
t
WT I
Ii0Ł
cxa
~on:
I70T
cm
C77t
ivzr
tar
0KMH-GW-W26R-0-22 // Q I
WT i
t'ft/uit
OKMN-GW-W26R-DB-22
S
WT
X
OKMI^GWPWD7-Q-22 | 0 ? /
010
0KMN-GW-PWD8-0-22
j0 3i
WT
fc/s/a
OKMN-GW-PW09-0-22
j.
U30
0\\
or
Ust 1: VOCs including: acetone, benzene, 1,1-dfchloroethane, 1,2-
dichloroethane, 1,1-dichloroethylene, ris & trans-l^-dichloroethylene,
ethylbenzerte, isopropyl ether, methyl ethyl ketone, and
tetrahydrofuran
List 2: VOCs including: isopropyl alcohol, 2-butyl alcohol, methyl
ntnwilj I aluuhul, methylene chioride, methyl isobutyl ketone, toluene,
and total xylenes.
"AA
Z1
1Z/&
(216
/U
AJ
PRINT Name of SAMPLER:
SIGNATURE of SAMPLER:
DATE Signed:
01 o O
%iU
E«z
CO cC
-------
CHAIN-OF-CUSTODY / Analytical Request Document
/ The Chain-of-Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately.
_ ^ Submitting a sample via this ehainofcustody constitutes acknowledgment and acceptance of the Pace Terms and Conditions found at https://info.pacel3bs.eomftiubfs/pas-standard-terms.pdf.
Required Client Informatran:
Company:
Section B
Required Project Information:
Weston Solutions
Address: 140#Weston Way
West Chester, Pa 19380
Email: denver.maitin@westonsolutions.com
Phone:
(715)222-7116
Fax:
Section C
Invoice Information:
Report To: Denver Martin
Copy To:
Purchase Order #:
Project Name: Semiannual OKMN VOC
Attention:
Company Name:
Address:
Pace Quote:
Pace Project Manager: sylvTaiiunter@pacetabs.com,
Page :
Of
Project#:
Pace Profile #: 32910 line 1 & 3
%
S
111
SAMPLE ID
One Character per box.
(A-Z.0-9/,-)
' Sample Ids must be unique
MATRIX
DrinVhg Water
Water
Wastewater
Product
COPE
DW
01
Other
Tissue
Ot
VJP
AR
OT
COLLECTED
START
DATE
TIME
END
TIME
Preservatives
ft "3 - l~L\
OKMN-GW-W25-Q-22 / (
WT C
ifi/2
GHOZ&r
oil
0KMN-GW-W31-0-22 //0 /
wr i
tl/'/Z
tm
OKMN-GW-W21S-O-22 iitz.
wr'
(t/z/g
I3?0
m.
QKMN-GW-W2003-0-22 /Ł?? I
M
llrS
OKMN-GW-W2008-0-22
OKMN-GW-W2008-DB-22
m.
wr'
±
mr
QKMN-GW-W3-0-22 ( Q3 {
WT
OKMN-GW-WB-O-22 /'/Q I
n/i/niOT
gŁo\ CfLQ
OKMN OWWUU'U'AJ
wr
OKMN-GW-W6102-0-22
wr!
i if?ft
OKMN-GW-PW10-0-22
\lo\
wr *
I vs-r
QlZ
OV)
List 1: VOCs including: acetone, benzene, 1,1-cfichloroelhane, 1,2-
dichtoroe thane, 1,1-dichtoroethylenB, as & trans-1,2-dichtoro^hylene,
ethylbenzene, isopropy] ether, methyl ethyl ketone, and
tetrahydrofuran
List 2: VOCs including: isopropyl alcohol. 2-butyl alcohd,
lzi&
{0/22-
I'Z-l &
iU Y
PRIMT Name of SAMPLER:
SIGNATURE of SAMPLER:
6 <17—
DATE Signed:
zz_
ft? ® ^
C uC
A/
f
2 §
a _ .
E o Z
.5 -S >:
CD C O
-------
/-•
'ace'
Section A
CHAIN-OF-CUSTODY / Analytical Request Document
The Chain-of-Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately.
Submitting a sample via this chain of custody constitutes acknowledgment and acceptance of the Pace Terms and Conditions found at https://info.pacelabs.coni/hubls/pas-standard-tenns.pdf.
Section B
Section C
Company: Weston Solutions
Report To: Denver Martin
Attention:
Address: 1401 Weston Way
Copy To:
Company Name:
West Chester, Pa 19380
Address:
¦T'Ti" > fit0 sitfflfr id
Email: denver.martin@westonsolutinns.coni
Purchase Order#:
Pace Quote:
Phone: {715)222-7116 |FaJc
Project Name: Semiannual OKMN VOC
Pace Project Manager sylvia.hunter@pacelabs.com,
Requested Due Date:
Project#:
Pace Profile#: 32910 fine 1 & 3
MN
%
S
Ui
t
MATRIX CODE
Drinking lA&ter DW
Water WT
Wastewater VWV
Product P
SAMPLE ID S:
One Character per box. wipe wp
^ ¦ S- «
Sample Ids must be unique 7^^ 75
MATRIX CODE (see valid codes to left) |
SAMPLE TYPE (G=GRAB OCOMP) |
COLLECTED
I SAMPLE TEMP AT COLLECTION |
«
4E
UJ
2
s
z
8
u.
O
4*
Preservatives
1
up
KM
Ml
1SJ.IJ
«pi
wm.
m
MWMB
START
END
Unpreserved
*3"
O
V)
(N
X
GONH
CJ
oc
NaOH
1
CO
CM
<0
z
| Methanol j
| Other j
1
231
VOCs List 1*
CM
"5
—i
u>
8
>
Residual Chlorine (Y/N)
DATE
TIME
DATE
TIME
m
l(6\
H/ifU
[}? 20
?
3
X
Qz.jp
nbM/I/'fsii -uzr- tzkoi - 22 h&
mo
5
7
X
X
OZlf
fill
1
IK
- -'i?
Bill
Ii§!
fllll
1111
iSS
18
US*
Hi
siMii
H
«E
m
Egg
mm*
BRWffiKSBa
m
SI
'List 1: VOCs including: acetone, benzene, 1,1-dichloroethane, 1,2-
dichloroethane, 1,1-dichtoroethylene, ds & trans-1,2-dichloroethylene,
ethylbenzene, isopropyl ether, methyl ethyl ketone, and
tetrahydrofuran
"List 2: VOCs including: isopropyl alcohol. 2-butyi alcohol, ^
/2./Ł
(1/02-
[2,16
11.6
/
AJ
f
and total xylenes, and methyl isobutyl carbinol/ 4-methyl-2-pentanol
-n L
Q)
CQ
fl>
CO
CD
o
-vl
o
SAMPLER. NAME ANDjSIGN ATI
TEMP in C
Received on
Ice
(Y/N)
custody
Sealed
Cooler
(Y/N)
Samples
Intact
(Y/N)
PRINT Name of SAMPLER: r\ s\ J .
SIGNATURE of SAMPLER: I DATE Si9ned: jj
-------
DC#_Title: ENV-FRM-MIN4-0150 vlO_Sample Condition Upon Receipt (SCUR)
Effective Date:
1
Client Name:
Project #:
iA luT;Wr
Courien ~ FedEx ~ UPS ~ USPS ETciient
I~1 Pace ~ Spec Dee ~ Commercial
Tracking Number:
I I See Exceptions
ENV-FRM-MIN4-0142
UIQtt: 10632375
PM: SHI Dye Date: 11/16/22
CLIENT: WESTON
Custody Seal on Cooler/Box Present? ~ Yes Isftio Seals Intact? ~ Yes [~^-No
Packing Material: ~ Bubble Wrap j/1 Bubble Bags ~ None ~ Other
Thermometer: ~ T1 (0461) ~ 12 (1336) ~ 13 (0459) ~ 14 (0254) ~ T5 (0178)
~ T6 (0235)017 (0042) ~ T8 (0775) ~ 01339252/1710
Biological Tissue Frozen? ~ Yes ~ No [/fVj/A
Temp Blank? Q'Yes I I No
Type of lce:[/f Wet ~ Blue ~ Dry [ | None
I I Melted
Did Samples Originate in West Virginia? ~ Yes [~/f No
Were All Container Temps Taken? [j Yes ~ No 171 N/A
Temp should be above freezing to 6 "C Cooler temp Read w/Temp Blank:
Correction Factor: ""f~ f ^ ^ Cooler Temp Corrected w/temp blank:
T
X
Average Corrected Temp
(no temp blank only): T
1 i See Exceptions ENV-FRM-MIN4-0142 ~ 1 Container
USDA Regulated Soil:(J0"N/A, wfftffFsample/oth
)
Date/Initials of Person Examining Contents:
Did samples originate in a quarantine zone within the United States: AL, AR, AZ CA, FL,
GA, ID, LA, MS, NC, NM, NY, OK, OR, SC, IN, IX, or VA (check maps)? [jj Yes Q No
2-L
Did samples originate from a foreign source (internationally,
including Hawaii and Puerto Rico)? [j| Yes ~ No
If Yes to either question, fill out a Regulated Soil Checklist f ENV-PRM-MIN4-0154) and include with SCUR/COC paperwork.
F^Minneapolis
[Virginia
Location (Check one):
Duluth
COMMENTS
Chain of Custody Present and Filled Out?
Yes
No
Chain of Custody Relinquished?
I Yes
No
Sampler Name and/or Signature on COC?
[Yes
No
N/A
Samples Arrived within Hold Time?
Yes
No
No
4. If fecal: [_J <8 hrs
5. ~ Fecal Coliform[
>8 hr, <24
! No
Short Hold Time Analysis (<72 hr)?
Yes
~ BOD/cBOD
UPC | [ TotalColiform7E.coli
Hex Chromj I Turbidity ~ Nitrate
Rush Turn Around Time Requested?
J Yes
/
No
6.
Sufficient Sample Volume?
^ Yes
No
7.
Correct Containers Used?
-Pace Containers Used?
A Yes
3"Ycs
=
No U N/A
No
8.
Containers Intact? <
Yes
No
9.
Field Filtered Volume Received for Dissolved Tests?
J Yes
No l/J N/A
10. Is sediment visible in the dissolved container? | | Yes | | No
Is sufficient information available to reconcile the samples to the
A Yes
No
11. if no, write ID/Date/Time of container below:
COC?
Matrix: Water [J Soil ~ Oil [J Other
I I See Exceptions
ENV-FRM-MIN4-0142
AH containers needing acid/base preservation have been
checked?
~ Yes
~ Yes
All containers needing preservation are found to be in
compliance with EPA recommendation?
(HNOB, H2S04, <2pH, NaOH >9 Sulfide, NaOH>10 Cyanide)
ExceptiarfsTvgZ^^orm, TOC/DOC Oil and Grease, DRO/8015 p^fYes
(water) afflttTloxins/PFAS
(*lf adding preservative to a container, it must be added to
associated field and equipment blanks-verify with PM first.)
~ No
~ No H'N/A
~ No ~ N/A
12. Sample#
~ NaOH
~ H2S04
~ HN03
I I Zinc Acetate
Positive for Residual
Chlorine?
Residual Chlorine
Yes
No
pH Paper lot ft
I I See Exceptions
ENV-FRM-MIN4-0142
0-6 Roll
0-6 Strip 0-14 Strip
Headspace in Methyl Mercury Container?
No
N/A
13.
Extra labels present on soil VOA or WIDRO containers?
Headspace in VOA Vials (greater than 6mm)?
No
No
N/A
N/A
14.
1 1 See Exceptions
ENV-FRM-MIN4-0142
3 Trip Blanks Present?
Trip Blank Custody Seals Present?
No
No
N/A
N/A
15.
Pace Trip Blank Lot # (if purchased)'
CLIENT NOTIFICATION/RESOLUTION
Person Contacted:
Comments/Resolution: ,
Project Manager Review: Cy
Field Data Required? 1 I Yes 1 [ No
Date/Time:
NOTE: Whenever there is a discrepancy affecting North Carolina corrij
temp, incorrect containers).
Date:_HMZ22
Quaitrax ID: 52742
samples, a copy of this form will be sent to the North Carolina DEHNR Certification Offie
Labeled By:
Pace® Analytical Services, LLC
hold, incorrect preservative,
Line:
Wi°
-------
¦puUBh.
!_^ace Analytical
Document Name:
Headspace Exception
Document Revised: 26Mar2020
Page 1 of 1
Document No.:
ENV-FRM-M1N4-0140 Rev.00
Pace Analytical Services -
Minneapolis
Sample ID
Headspace
greater
than 6mm
Headspace
less than
6mm
No
Headspace
Total Vials
Sediment
Present?
qKMA/- C\\a>- fbjoi-
O-IX\02 1
I
o
J"
V
- — — - - —
-
— -
-
Page 41 of 70
-------
DC#_Title: ENV-FRM-MIN4-0142 v02_Sample Condition Upon Receipt
(SCUR) Exception Form
mvtw&stsmt
Effective Date: 09/22/2022
Workorder #:
No Temp Blank
Read Temp
Corrected Temp
Average temp
PM Notified of Out of Temp Cooler?
If yes, indicate who was contacted,
If no, infficgte retsor^why.
a-v isza ysy [(ti.t
time.
Multiple C^tfer Project? ~ Yes <^2 Nc
If anything is OVER 6.0° C, you MUST document containers in this section HERE
Tracking Number
Temperature
Out of Temp Sample ID
Container
Type
# of
Containers
pH Adjustment Log for Preserved Samples
Sample ID
Type
Preserve
PH
Upon
Receipt
Date
Adjusted
Time
Adjusted
Amount
Added
(mL)
Lot#
Added
MepS
After
In Compliance
After
Addition?
Initials
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
~ Yes
~ No
Comments:
Qualtrax ID: 52763
Page 1 of 1
Page 42 of 70
-------
Internal Transfer Chain of Custody
| | Samples Pre-Logged into eCOC.
Workorder: 10632375 Workorder Name: OKMN Semiannual VOC
State Of Origin: MN
Cert. Needed: Q Yes Q No
Owner Received Date: 11/3/2022
ceAnalytical
wwv#.pacei atos.com
Results Requested By: 11/16/2022
Report To I Subcontract To
¦^eouestod Analysis
Sylvia Hunter Pace Analytical Green Bay
Pace Analytical Minnesota 1241 Bellevue Street
1700 Elm Street Suite 9
Minneapolis, MN 55414 Green Bay, Wl 54302
Phone 1(612)607-1700 Phone (920)469-2436
Preserved Containers
VOC List 1
(N
05
_J
o
o
>
LAB USE ONLY
Item
Sample ID
Sample
Typ<-
Ccllec.'
Date/Time
Lab ID
hmma
.._j...
y
1
OKMN-GW-PW01-0-22 1101
PS
11/1/2022 13:45
10632375001
Water
2
X
X
Ł>0\
2
OKMN-GW-PW02-0-22 1101
PS
11/1/2022 14:05
10632375002
Water
2
X
X
3
OKMN-GW-TRIP01-221031
PS
10/31/2022 07:00
10632375003
Water
2
X
X
4
OKMN-GW-PW03-0-22 1101
PS
10/31/2022 17:05
10632375004
Water
2
X
X
5
OKMN-GW-PW04-0-22 1101
PS
10/31/2022 14:20
10632375005
Water
2
X
X
6
OKMN-GW-PW06-0-22 1101
PS
10/31/2022 14:35
10632375006
Water
2
X
X
7
OKMN-GW-PW11 -0-22 1101
PS
10/31/202215:15
10632375007
Water
2
X
X
8
OKMN-GW-W26R-0-22 1101
PS
11/1/2022 11:45
10632375008
Water
2
X
X
mir
9
OKMN-GW-W26R-DB-22 1101
PS
11/1/202211:45
10632375009
Water
2
X
X
rx&
10
OKMN-GW-PW07-0-22 1031
PS
10/31/2022 13:30
10632375010
Water
2
X
X
mo
11
OKMN-GW-PW08-0-22 1031
PS
10/31/2022 10:15
10632375011
Water
2
X
X
oil
12
OKMN-GW-PW09-0-22 1031
PS
10/31/2022 11:30
10632375012
Water
2
X
X
DO.
13
OKMN-GW-W25-0-22 1102
PS
11/2/2022 17:36
10632375013
Water
2
X
X
oil
14
OKMN-GW-W31-0-22 1101
PS
11/1/2022 10:40
10632375014
Water
2
X
X
C?N
15
OKMN-GW-W215-0-22 1102
PS
11/2/2022 13:30
10632375015
Water
2
X
X
OS
16
DKMN-GW-W2003-0-22 1031
PS
10/31/2022 14:05
10632375016
Water
2
X
X
OIL
17
OKMN-GW-W2008-0-22 1031
PS
10/31/2022 14:35
10632375017
Water
2
X
X
Oil
18
OKMN-GW-W2008-DB-22 1031
PS
10/31/2022 14:35
10632375018
Water
2
X
X
19
OKMN-GW-W3-0-22 1031
PS
10/31/2022 16:00
10632375019
Water
2
X
X
&f\
Friday, November 04, 2022 11:25;23 AM
FMT-ALL.-C-002rev.00 24March2009
Page 1 of 2
Page 43 of
-------
Internal Transfer Chain of Custody
|T| Samples Pre-Logged into eCOC.
Workorder: 10632375 Workorder Name: OKMN Semiannual VOC
State Of Origin: MN
Cert. Needed: Q Yes Q No
Owner Received Date: 11/3/2022
race Analytical
www. pace Iabs.com
Results Requested By: 11/16/2022
Report To ! Subcontract To
Requested Analysis
Sylvia Hunter Pace Analytical Green Bay
Pace Analytical Minnesota 1241 Bellevue Street
1700 Elm Street Suite 9
Minneapolis, MN 55414 Green Bay, Wl 54302
Phone 1(612)607-1700 Phone (920)469-2436
Prtsseived Containers
VOC List 1
CM
«
Li
o
o
>
LAB USE ONLY
Item
Sample iD
Sample
Type
Collect
Date/Time
L-ihl'J
Matrix
-j
u
I:
20
OKMN-GW-W8-0-22 1101
PS
11/1/2022 10:15
10632375020
Water
2
X
X
ow
21
OKMN-GW-PW10-0-22 1101
PS
11/1/2022 14:55
10632375021
Water
2
X
X
Oil
22
OKM N-G W-W6102-0-22 1103
PS
11/3/2022 06:45
10632375022
Water
1
X
012-
23
OKMN-GW-W8-EB01 -22 1101
PS
11/1/2022 09:20
10632375023
Water
2
X
X
07^
24
OKMN-GW-W25-EB02-22 1102
PS
11/2/2022 14:40
10632375024
Water
2
X
X
oz^i
¦liiiliil
wmmmmmmm
IlllllllI
Transfers
Released By [Date/Time
Received By
Date/Time
1
/7^~ /L4~rJŁ- W/f/L/
IS
2
3
I
Cooler Temperature on Receipt °C I Custody Seal Y or N Received on Ice Y or N
Samples Intact Y or N
*ln order to maintain client confidentiality, location/name of the sampling site, sampler's name and signature may not be provided on this COC document.
This chain of custody is considered complete as is since this information is available in the owner laboratory.
Friday, November 04, 2022 11:25:26 AM
FMT-ALL-C-002rev.00 24March2009
Page 2 of 2
Page 44 of 70
-------
INTER LABORATORY WORK ORDER # 10632375
^Analytical
www.ptcelabs.ciim
Ship To:
Pace Analytical Green Bay
1241 Bellevue Street
Suite 9
Green Bay, Wl 54302
Phone (920)469-2436
(To be completed by sending lab)
Sending Project No:
10632375
Receiving Project No:
W9fZ
Check Box for Consolidated Invoice:
Date Prepared:
11/04/22
REQUESTED COMPLETION DATE:
11/16/2022
Sending Region
IR10-Minnesota
Sending Project Mgr.
Sylvia Hunter
Receiving Region
IR40-Green Bay
External Client
Weston Solutions, Inc.
State of Sample Origin
MN
QC Deliverable
STD REPORT
All questions should be addressed to sending project manager.
Requested Reportable Units Report Wet or Dry Weight? Dry Weight | IIRWO Lab Need to run? Cert. Needed
WORK REQUESTED
Method Description
Container Typo
Quantity of
Preservative
Quantity of
Unit Price Amount
¦NhIHUmS
VG9H
HCL
24
$50.0C
$1,200.0C
VG9H
HCL
23
$100.0C
$2,300.0C
TOTAL
$3,500.0C
Special Requirements: Report D. QC Limits. MDLs (D).Weston Equis (85)
Receiving Region Department
Acctg Code
Totals from above
Revenue Allocation
Receiving Region
(80%)
Client Services Dept
Sending Region (209d)
Wet Chemistry
21
$1,200.0C
$960.0C
$240.00
GC/MS Volatiles
34
$2,300.0C
$1,840.0C
$460.00
" Custom Revenue Allocation
TOTAL
$3,500.0C
$2,800.0C
$700.00
VLYTICAL WORK COMPLETED THIS SECTION ALSO
Return Samples to Sending Region: | | Yes | | No
Original sent to the receiving lab - Copy kept at the sending lab.
When work completed: Original sent to the ABM at the receiving laboratory. Copies are made to corporate as needed.
Friday, November 04, 2022 11:25:27 AM
FMT-ALL-C-001 rev.00 24March2009
Page 1 of 1
Page 45 of 70
-------
DC#_Title: ENV-FRM-GBAY-0035 v03_Sample Preservation Receipt Form
Effective Date: 8/16/2022
Client Name:
All containers needing preservation have been checked and noted below:
Lab Lot# of pH paper:
Sample Preservation Receipt Form
Pr°ject# j 02.^7^1
s dno ym•
Lab Std #ID of preservation (if pH adjusted):
~Yes
Initial when Date/
completed: Time:
Glass
Plastic
Vials
Jars
General
3 X
D W =>
in n n
o o o
< < *
D =3 ŁQ Z U) N
t- m « n m cm
0. Q. 0. 0_ 0. ŁL
QQ CQ CD OB DO CO
O H D I S
Q O) O) 0> Ol
O O O O O O
> Q > > > >
O CM
EI z z
N O CD
Volume
(mL)
Exceptions to preservation check: VOA] Coliform, TOC, TOX, TOH, O&G, Wl DRO, Phenolics, Other:
Headspace in VOA Vials (>6mm): DYes 0No DN/A *lf yes look in headspace column
AG1U
1 liter amber glass
BP1U
1 liter plastic unpres
VG9C
40 mL clear ascorbic w/ HCI
JGFU
4 oz amber jar unpres
BG1U
1 liter clear glass
BP3U
250 mL plastic unpres
DG9T
40 mL amber Na Thio
JG9U
9 oz amber jar unpres
AG1H
1 liter amber glass HCL
BP3B
250 mL plastic NaOH
VG9U
40 mL clear vial unpres
WGFU
4 oz clear jar unpres
AG4S
125 mL amber glass H2S04
BP3N
250 mL plastic HN03
VG9H
40 mL clear vial HCL
WPFU
4 oz plastic jar unpres
AG5U
100 mL amber glass unpres
BP3S
250 mL plastic H2S04
VG9M
40 mL clear vial MeOH
SP5T
120 mL plastic Na Thiosulfate
AG2S
500 mL amber glass H2S04
BP2Z
500 mL plastic NaOH + Zn
VG9D
40 mL clear vial Dl
ZPLC
ziploc bag
BG3U
250 mL clear glass unpres
GN 1
GN 2
Page J_ of
3-
Qualtrax ID: 41307
Pace® Analytical Services, LLC
Pa^ab^of
-------
DC#_Title: ENV-FRM-GBAY-0035 vxx_Sample Preservation Receipt Form
Effective Date: x/x/2022
» u I Sample Preservation Receipt Form,,,
Client Name: r\\\| Project #: 7^1
Qualtrax ID: 41307
Pace® Analytical Services, LLC
Page 47 of 70
Page 2 of 3
-------
DC#_Title: ENV-FRM-GBAY-0014 v03_SCUR
Effective Date: 8/17/2022
Sample Condition Upon Receipt Form (SCUR)
Project #:
Client Name: \(KX- VAV\
Courier: f3 CS Logistics 0 Fed Ex @ Speedee UPS j^fwaltco
C Client Pace Other:
i
Tracking #:
Custody Seal on Cooler/Box Present: pfyes r no Seals intact: ^'yes [j no
Custody Seal on Samples Present: O yes Sjjf no Seals intact: f yes E3 no
Packing Material: p^Bubble Wrap ^pfBubble Bags None |~" Other
Thermometer Used SR - / Type of Ice^Tet^ Blue Dry None
U0#:40254287
40254287
O Meltwater Only
Uncorr:
Cooler Temperature
Temp Blank Present: fpfyes El no
Temp should be above freezing to 6°C.
^ /Corr: Z
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622 10.D
Report Date: 17-Nov-2022 15:14 —
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375023
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 14:20
Number TICs found: 3
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W8-EB01-221
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.870
11.0
J
2.
Unknown
1.458
0. 00
~~ ——
3.
Unknown
2.186
0.00
Page 49 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_ll.D
Report Date: 17-Nov-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375006
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 14:36
Number TICs found: 1
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW06-0-2211
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
37.0
J
Page 50 of 70
-------
Data File: \\vlOwintarget\chera\lOrasvG.i\111622A.b\111622_12.D
Report Date: 17-Nov-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Srap Id: 10632375007
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 14:52
Number TICs found: 0
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PWll-O-2211
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
Page 51 of 70
-------
Data File; \\vl0wintarget\chem\10msvG.i\111622A.b\111622_13.D
Report Date: 17-Nov-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Srap Id: 10632375008
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 15:07
Number TICs found: 3
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W26R-0-2211
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS!
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
34.8
J
2.
Unknown
1.468
0.00
3.
Unknown
2.186
0.00
Page 52 of 70
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622_14.D
Report Date: 17-Nov-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Srap Id: 10632375009
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 15:23
Number TICs found: 3
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W26R-DB-221
Sample Date: 01-NOV-2 022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
34.5
J
2.
Unknown
1.468
0.00
3.
Unknown
2.181
0.00
Page 53 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_15.D
Report Date: 17-Nov-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Srap Id: 10632375012
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 15:38
Number TICs found: 1
Client SDG: 10MSVG-111622A
client Smp ID: OKMN-GW-PW09-0-2210
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
= = = = == = = = = = = = = = = =
===========================
========
=============
=====
1.
Unknown
1.457
0.00
Page 54 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_16.D
Report Date: 17-NOV-2022 15:14
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375013
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 15:54
Number TICs found: 3
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W25-0-22110
Sample Date: 02-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1. 94-07-5
2.
3.
Benzenemethanol, 4-hydroxy-
Unknown
Unknown
0.876
0.902
1.484
13.2
17.6
0.00
NJ
J
Page 55 of 70
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622 17.D
Report Dates 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375014
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 16:10
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W31-0-22110
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
67.0
J
2.
Unknown
1.426
0.00
Page 56 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_18.D
Report Date: 17-NOV-2 022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375016
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 16:25
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W2003-0-221
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
30.9
J
2.
Unknown
2.181
0.00
Page 57 of 70
-------
Data Files \\vl0wintarget\chem\10msvG.i\111622A.b\111622_19.D
Report Date: 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375017
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 16:41
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W2008-0-221
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
1.468
0.00
2.
Unknown
2.186
0.00
Page 58 of 70
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622_20.D
Report Date: 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375018
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 16:57
Number TICs found: 1
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W2008-DB-22
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
33.3
_J
Page 59 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_21.D
Report Date: 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375019
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 17:12
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W3-0-221031
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
28.4
J
2.
Unknown
1.463
0.00
Page 60 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_22.D
Report Date: 17-Nov-2 022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375020
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 17:28
Number TICs found: 4
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W8-0-221101
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
0 1
1 1
O 1
O 1
O 1
Dodec-3-yn-l-ol
Unknown
Unknown
Unknown
0.875
0.901
1.468
2.186
13.2
15.5
0.00
0.00
NJ
_J
Page 61 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_23.D
Report Date: 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375021
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 17:43
Number TICs found: 6
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW10-0-2211
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.881
108
J
2. 496-11-7
Indane
7.676
10.8
TTJ
3. 873-94-9
Cyclohexanone, 3,3,5-trimet
7.927
16.5
NJ
4. 934-80-5
Benzene, 4-ethyl-l,2-dimeth
7.980
12 . 9
NJ
5. 27133-93-3
2,3-Dihydro-l-methylindene
8.058
9.8
NJ
6. 527-53-7
Benzene, 1,2,3,5-tetramethy
8.273
10.5
NJ
Page 62 of 70
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622 24.D
Report Date: 17-Nov-2022 15:15 ~~
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375001
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 17:59
Number TICs found: 1
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PWOl-O-2211
Sample Date: 01-NOV-2 022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
================
II
II
II
II
II
II
ll
II
ll
II
ll
II
II
II
1!
II
II
II
II
II
II
II
II
II
II
II
II
========
=============
1.
Unknown
0.902
38.4
J
Page 63 of 70
-------
Data File: \\vl0wintarget\chem\10rasvG.i\111622A.b\111622_25.D
Report Date: 17-Nov-2022 15:16
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375002
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 18:15
Number TICs found: 0
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW02-0-2211
Sample Date: 01-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
= = = = = =s = = = = =s=s = = = =
II
ll
ll
II
II
II
ll
II
II
II
II
II
ll
II
II
II
ll
II
II
ll
ll
ll
ll
II
II
ll
ll
========
Page 64 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_26.D
Report Dates 17-Nov-2022 15:16
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375005
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 18:30
Number TICs found: 0
Client SDG: 10MSVG-111622A
client Smp ID: OKMN-GW-PW04-0-2211
Sample Date: 31-OCT-2 022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS;
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
= = = = = = ss = = = = =r=: = = =
ll
ll
ll
II
II
ll
ll
ll
ll
ll
ll
ll
II
ll
ll
ll
ll
ll
ll
ll
II
ll
II
II
ll
ll
ll
Page 65 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_27.D
Report Date: 17-Nov-2022 15:15
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375010X5
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 18:46
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW07-0-2210
Sample Date: 31-OCT-2 022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1. 56438-28-9
2. 108-87-2
Germacyclohexane, 1,1-dichl
Cyclohexane, methyl-
0.875
4.441
80.9
77.4
NJ
NJ
Page 66 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_28.D
Report Date: 17-Nov-2022 15:16
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375011X5
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 19:01
Number TICs found: 1
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW08-0-2210
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.901
91.8
_J
Page 67 of 70
-------
Data File: Wvl0wintarget\chem\10msvG.i\111622A.b\111622_29.D
Report Dates 17-Nov-2022 15:16
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Srap Id: 10632375004X5
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 19:17
Number TICs found: 1
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-PW03-0-2211
Sample Date: 31-OCT-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
1.
Unknown
0.902
90.5
_J
Page 68 of 70
-------
Data File: \\vl0wintarget\chem\10msvG.i\111622A.b\111622_36.D
Report Date: 17-Nov-2022 15:28
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375024
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 21:06
Number TICs found: 3
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W25-EB02-22
Sample Date: 02-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
================
II
II
II
II
ll
II
ll
II
II
ll
ll
ll
ll
II
ll
ll
ll
ll
II
II
II
II
ll
ll
ll
II
ll
========
=============
1. 505-57-7
2-Hexenal
0.870
11.3
NJ
2.
Unknown
1.452
0. 00
3.
Unknown
2.181
0.00
Page 69 of 70
-------
Data File: \\vlOwintarget\chem\1OmsvG.i\111622A.b\111622_38.D
Report Date: 17-Nov-2022 15:28
Pace Analytical Services, Inc.
TENTATIVELY IDENTIFIED COMPOUNDS
Page 1
Client Name: Weston Solutions, I
Lab Smp Id: 10632375015
Operator : JEM
Sample Location:
Sample Matrix: WATER
Analysis Type: VOA
Inj Date: 16-NOV-2022 21:38
Number TICs found: 2
Client SDG: 10MSVG-111622A
Client Smp ID: OKMN-GW-W215-0-2211
Sample Date: 02-NOV-2022
Sample Point:
Date Received:03-NOV-2022 12:16
Level: LOW
CONCENTRATION UNITS:
(ug/L or ug/KG) ug/L
CAS NUMBER
COMPOUND NAME
RT
EST. CONC.
Q
• — — — —
II
II
ll
II
II
ll
ll
II
ll
ll
n
ll
ll
ll
ll
ll
ll
ll
ll
ll
ll
II
ll
ll
ll
ll
ll
========
=============
====—
1.
Unknown
0.902
27.7
J
2.
Unknown
1.463
0.00
Page 70 of 70
-------
Restoring Resource Efficiency
APPENDIX D
HISTORICAL VOC GROUNDWATER QUALITY DATA 2006-2022
-------
Table D-l
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW1
PW1
PW1
PW1
PW1
PW1
PW1
PW1
PW1
PW1
PW1
PW1
Sample Date:
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
12/2/2011
11/15/2012
11/24/2013
11/20/2014
11/18/2015
11/3/2016
11/2/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
316 J
57.4
118
76.4
<500
< 125
<25.0
<2000
<2000
<1000
<2000
<2000
Benzene
26.1
21.0
32.4
47.8
<50.0
35.5
82.8
<100
<100
<50.0
<100
<100
1,1-Dichloroethane
< 10.0
<5.0
<5.0
<5.0
<50.0
<5.0
<1.0
<100
<100
<50.0
<100
<100
1,2-Dichloroethane
< 10.0
<5.0
<5.0
<5.0
<50.0
<5.0
3.9
<100
<100
<50.0
<100
<100
1,1-Dichloroethylene
< 10.0
<5.0
<5.0
<5.0
<50.0
<5.0
<1.0
<100
<100
<50.0
<100
<100
1,2-Dichloroethylene, cis
< 10.0
<5.0
<5.0
<5.0
<50.0
<5.0
6.0
<100
<100
<50.0
<100
<100
1,2-Dichloroethylene, trans
< 10.0
<5.0
<5.0
<5.0
<50.0
<20.0
<1.0
<100
<100
<50.0
<100
<100
Ethyl benzene
11.3
13.9
8.6
18.0
<50.0
15.0
39.6
<100
<100
<50.0
<100
<100
Isopropyl ether
5320
5280
7030
11300
7120
8220
11300
8240
7910
10300
12400
10600
Methyl ethyl ketone
91.4 J
42.9
36.0
47.1
<200
21.9
<4.0
<500
<500
<250
<500
<500
Tetrahydrofuran
< 100
<50.0
<50.0
<50.0
<500
<50.0
30.5
<1000
<1000
<500
<1000
<1000
List 2 VOCs (jig/L)
Isopropyl alcohol
<300 J
< 150
<200
<200
<5000
<500
<100
<10000
<10000
<5000
<10000
<10000
2-Butyl alcohol
<300
< 150
<200
<200
<2000
<200
<40.0
<4000
<4000
<2000
<4000
<4000
4-Methyl-2-pentanol
<300 J
< 150
<200
<200
<2000
<200
<40.0
<4000
<4000
<2000
<4000
<4000
Methylene chloride
< 10.0
<20.0
<20.0
<20.0
<200
<20.0
<4.0
<400
<400
<200
<400
<400
Methyl isobutyl ketone
79.5
51.5
30.5 J
42.4
<200
51.2
12.3
<500
<500
<250
<500
<500
Toluene
60.0
60.6
40.5
79.4
71.3
38.7
124
<100
388
115
<100
250
Xylenes, total
125
93.9
108
201
< 150
114
433
<300
<300
<150
<300
<300
Total VOCs Qig/L)
6029
5621
7404
11812
7191
8496
12032
8240
8298
10415
12400
10850
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Appendix-D-2022_OKMN-VOC-Tables-REV2023-01-09.xlsx
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW1
PW1
PW1
PW1a
PW1a
PW2
PW2
PW2
PW2
PW2
Sample Date:
10/25/2018
10/15/2019
10/25/2020
10/20/2021
11/1/2022
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
Sample Code:
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<1000
<1000
<1000
<3120
<500 v1
12900 J
10800
9320
7520
13800
Benzene
<50.0
76.7
70.6
<125
28.9
16.7
27.1
24.1
21.9
<50.0
1,1-Dichloroethane
<50.0
<50.0
<50.0
<125
<20.0
< 10.0
< 1.0
<5.0
<5.0
<50.0
1,2-Dichloroethane
<50.0
<50.0
<50.0
<125
<20.0
< 10.0
< 1.0
<5.0
<5.0
<50.0
1,1-Dichloroethylene
<50.0
<50.0
<50.0
<125
<20.0
< 10.0
< 1.0
<5.0
<5.0
<50.0
1,2-Dichloroethylene, cis
<50.0
<50.0
<50.0
<125
<20.0
< 10.0
< 1.0
<5.0
<5.0
<50.0
1,2-Dichloroethylene, trans
<50.0
<50.0
<50.0
<125
<20.0
< 10.0
< 1.0
<5.0
<5.0
<50.0
Ethyl benzene
<50.0
<50.0
50.4
<125
<20.0
< 10.0
10.6
8.7
7.8
<50.0
Isopropyl ether
6490
8550
9950
12000
2800
5890
7790
6850
5970
9850
Methyl ethyl ketone
<250
<250
<250
<3120
<500
6420 J
6900
4650
4330
7670
Tetrahydrofuran
<500
<500
<500
<3120
<500
< 100
< 10.0
<50.0
<50.0
<500
List 2 VOCs (jig/L)
Isopropyl alcohol
<5000
<5000
<5000
<12500
<2000
9680 J
15000
8000
8060
12000
2-Butyl alcohol
<2000
<2000
<2000
ND
ND
3720
5780 J
3620
3970
5710
4-Methyl-2-pentanol
<250
<2000
<2000
4.8
ND
646 J
558 J
<200
249
<2000
Methylene chloride
<200
<200
<200
<625
<100
< 10.0
<4.0
<20.0
<20.0
<200
Methyl isobutyl ketone
<2000
<250
<250
<3120
<500
1310
1870
749
925
1170
Toluene
50.2
<50.0
200
<125
<20.0
112
142
123
117
142
Xylenes, total
<150
167
166
<375
<60.0
<30.0
30.3
24.4
21.9
< 150
Total VOCs (jig/L)
6540
8794
10437
12005
2829
40695
48908
33369
31193
50342
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW2
PW2
PW2
PW2
PW2
PW2
PW2
PW2
PW2
PW2
PW2a
PW2a
Sample Date:
12/2/2011
11/15/2012
11/23/2013
11/20/2014
11/18/2015
11/3/2016
11/2/2017
10/25/2018
10/15/2019
10/25/2020
10/20/2021
11/1/2022
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
12000
5170
19500
12200
2030
<1000
9260
<1000
<1000
3160
<3120
5610 v1
Benzene
23.0
32.7
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
1,1-Dichloroethane
<5.0
<1.0
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
1,2-Dichloroethane
<5.0
<1.0
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
1,1-Dichloroethylene
<5.0
<1.0
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
1,2-Dichloroethylene, cis
<5.0
<1.0
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
1,2-Dichloroethylene, trans
<20.0
<1.0
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
Ethyl benzene
6.7
12.2
<50.0
<50.0
<50.0
<50.0
<100
<50.0
<50.0
<50.0
<125
<125
Isopropyl ether
7670
8300
6640
8490
7980
10100
6780
5300
8530
5900
8740
13700
Methyl ethyl ketone
5970
2500
7420
6430
767
<250
3380
<250
<250
1830
<3120
4390
Tetrahydrofuran
<50.0
35.9
<500
<500
<500
<500
<1000
<500
<500
<500
<3120
<3120
List 2 VOCs (jig/L)
Isopropyl alcohol
8460
3470 J
6190
9770
<5000
<5000
<10000
<5000
<5000
<5000
<12500
<12500
2-Butyl alcohol
3070
2460
2600
3610
<2000
<2000
<4000
<2000
<2000
<2000
ND
ND
4-Methyl-2-pentanol
240
412
<2000
<2000
<2000
<2000
<4000
<250
<2000
<2000
2.7
ND
Methylene chloride
<20.0
<4.0
<200
<200
<200
<200
<400
<200
<200
<200
<625
<625
Methyl isobutyl ketone
868
781
967
1120
<250
<250
<500
<2000
<250
<250
<3120
<3120
Toluene
87.7
158
92.3
431
107
93.1
266
72.8
<50.0
92.2
<125
145
Xylenes, total
20.1
39.4
<150
<150
<150
<150
<300
<150
<150
<150
<375
<375
Total VOCs (jig/L)
38416
23371
43409
42051
10884
10193
19686
5373
8530
10982
8743
23845
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW3
PW3
PW3
PW3
PW3
PW3
PW3
PW3
PW3
PW3
PW3
PW3
Sample Date:
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
12/2/2011
11/15/2012
11/24/2013
11/20/2014
11/18/2015
11/3/2016
11/2/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
92900 J
66200
70300
76000
13500
27400
7730
3680
<2000
10300
<4000
<4000
Benzene
437
552
483
542
< 100
<500
367
248
294
309
427
318
1,1-Dichloroethane
< 10.0
< 10.0
<25.0
<20.0
< 100
<500
<1.0
<100
<100
<50.0
<200
<200
1,2-Dichloroethane
< 10.0
< 10.0
<25.0
<20.0
< 100
<500
3.6
<100
<100
<50.0
<200
<200
1,1-Dichloroethylene
< 10.0
< 10.0
<25.0
<20.0
< 100
<500
<1.0
<100
<100
<50.0
<200
<200
1,2-Dichloroethylene, cis
< 10.0
< 10.0
<25.0
<20.0
< 100
<500
2.1
<100
<100
<50.0
<200
<200
1,2-Dichloroethylene, trans
< 10.0
< 10.0
<25.0
<20.0
< 100
<2000
<1.0
<100
<100
<50.0
<200
<200
Ethyl benzene
276
320
270
304
< 100
<500
187
<100
189
130
202
<200
Isopropyl ether
38300
43600
34100
44300
9350
29500
30500
12800
17500
20100
25400
20300
Methyl ethyl ketone
69400 J
65000
50200
61200
8330
17800
4820
1260
<500
6810
2890
2130
Tetrahydrofuran
< 100
259
<250
219
< 1000
<5000
179
<1000
<1000
<500
<2000
<2000
List 2 VOCs (jig/L)
Isopropyl alcohol
82200
84100
43400
<800
11000
< 50000
4260 J
<10000
<10000
<5000
<20000
<20000
2-Butyl alcohol
45400
70200 J
28400
47100
4330
< 20000
3250
<4000
<4000
2360
<8000
<8000
4-Methyl-2-pentanol
4190 J
4400
1690
3820
<4000
< 20000
1940
<4000
<4000
<2000
<8000
<8000
Methylene chloride
< 10.0
<40.0
< 100
<80.0
<400
<2000
<4.0
<400
<400
<200
<800
<800
Methyl isobutyl ketone
12000
19300 J
6890
12900
1560
6370
3390
651
806
1220
1080
<1000
Toluene
3190
3510
2830
3620
233
2420
1550
566
1620
639
1000
488
Xylenes, total
723
843
749
947
<300
< 1500
551
<300
543
403
<600
<600
Total VOCs Qig/L)
349016
358284
239312
250952
48303
83490
58730
19205
20952
42271
30999
23236
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW3
PW3
PW3
PW3a
PW3a
PW4
PW4
PW4
PW4
PW4
Sample Date:
10/25/2018
10/15/2019
10/25/2020
10/20/2021
11/1/2022
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
Sample Code:
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<2000
<2000
2050
<6250
<2500 v1
5620 J
2400
2570
3960
3620
Benzene
151
173
293
319
385
119
134
116
116
< 100
1,1-Dichloroethane
<100
<100
<100
<250
<100
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,2-Dichloroethane
<100
<100
<100
<250
<100
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,1-Dichloroethylene
<100
<100
<100
<250
<100
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,2-Dichloroethylene, cis
<100
<100
<100
<250
<100
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,2-Dichloroethylene, trans
<100
<100
<100
<250
<100
< 10.0
< 10.0
< 10.0
< 10.0
< 100
Ethyl benzene
<100
<100
<100
<250
<100
27.2
25.0
19.8
20.0
< 100
Isopropyl ether
13500
22800
19500
26000
14200
17000
17400
14300
20900
13300
Methyl ethyl ketone
<500
529
1900
<6250
<2500
2570 J
1780
996
1160
1050
Tetrahydrofuran
<1000
<1000
<1000
<6250
<2500
< 100
< 100
< 100
< 100
< 1000
List 2 VOCs (jig/L)
Isopropyl alcohol
<10000
<10000
<10000
<25000
<10000
5000 J
4260
1880
2620
<10000
2-Butyl alcohol
<4000
<4000
<4000
ND
ND
1620
1670 J
497
1080
<4000
4-Methyl-2-pentanol
<500
<4000
<4000
3.7
ND
522 J
571
<400
<400
<4000
Methylene chloride
<400
<400
<400
<1250
<500
< 10.0
<40.0
<40.0
<40.0
<400
Methyl isobutyl ketone
<4000
<500
<500
<6250
<2500
552
568 J
243 J
305
599
Toluene
699
227
212
260
<100
196
200
148
159
136
Xylenes, total
<300
<300
345
<750
<300
101
89.2
74.9
92.0
<300
Total VOCs (jig/L)
14350
23729
24300
26583
14585
33327
29097
20845
30412
18705
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW4
PW4
PW4
PW4
PW4
PW4
PW4
PW4
PW4
PW4
PW4a
PW4a
Sample Date:
12/2/2011
11/15/2012
11/23/2013
11/20/2014
11/18/2015
11/8/2016
11/2/2017
10/25/2018
10/15/2019
10/25/2020
10/20/2021
11/1/2022
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
3100
3200
3080
<2000
2710
<2000
7000
<2000
2350
<2000
<5000
<2500 v1
Benzene
102
115
89.9
<100
171
117
147
107
305
127
<200
161
1,1-Dichloroethane
< 10.0
<1.0
<1.0
<100
<50.0
<100
<25.0
<100
<100
<100
<200
<100
1,2-Dichloroethane
< 10.0
2.1
<1.0
<100
<50.0
<100
<25.0
<100
<100
<100
<200
<100
1,1-Dichloroethylene
< 10.0
<1.0
<1.0
<100
<50.0
<100
<25.0
<100
<100
<100
<200
<100
1,2-Dichloroethylene, cis
< 10.0
3.9
<1.0
<100
<50.0
<100
<25.0
<100
<100
<100
<200
<100
1,2-Dichloroethylene, trans
<40.0
<1.0
<1.0
<100
<50.0
<100
<25.0
<100
<100
<100
<200
<100
Ethyl benzene
14.1
18.7
6.3
<100
<50.0
<100
44.7
<100
<100
<100
<200
<100
Isopropyl ether
12400
13300
9180
8840
12500
15000
14200
11000
18600
13400
18200
14000
Methyl ethyl ketone
1040
706
576
<500
696
563
1740
<500
598
<500
<5000
<2500
Tetrahydrofuran
< 100
60.2
63.7
<1000
<500
<1000
<250
<1000
<1000
<1000
<5000
<2500
List 2 VOCs (jig/L)
Isopropyl alcohol
3220
1940
1560
<10000
<5000
<10000
6980
<10000
<10000
<10000
<20000
<10000
2-Butyl alcohol
856
978
389
<4000
<2000
<4000
1340
<4000
<4000
<4000
ND
ND
4-Methyl-2-pentanol
<400
140
64.6
<4000
<2000
<4000
<1000
<500
<4000
<4000
4.1
ND
Methylene chloride
<40.0
<4.0
<4.0
<400
<200
<400
<100
<400
<400
<400
<1000
<500
Methyl isobutyl ketone
246
241
138
<500
<250
<500
1180
<4000
<500
<500
<5000
<2500
Toluene
102
174
67.6
219
107
255
963
242
372
179
<200
152
Xylenes, total
80.7
108
78.6
<300
<150
<300
223
<300
<300
<300
<600
<300
Total VOCs (jig/L)
21161
20987
15294
9059
16184
15935
33818
11349
22225
13706
18204
14313
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW6
PW6
PW6
PW6
PW6
PW6
PW6
PW6
PW6
PW6
PW6
PW6
Sample Date:
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
12/2/2011
11/15/2012
11/23/2013
11/20/2014
11/18/2015
11/3/2016
11/2/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
6.2 J
<5.0
< 10.0
<50.0
< 100
< 125
43.3
<500
<500
<1000
<500
<500
Benzene
12.3
13.4
10.9
19.0
< 10.0
8.7
27.3
<25.0
25.4
<50.0
28
32.3
1,1-Dichloroethane
< 1.0
< 1.0
< 1.0
<5.0
< 10.0
<5.0
1.0
<25.0
<25.0
<50.0
<25.0
<25.0
1,2-Dichloroethane
< 1.0
< 1.0
< 1.0
<5.0
< 10.0
<5.0
8.1
<25.0
<25.0
<50.0
<25.0
<25.0
1,1-Dichloroethylene
< 1.0
< 1.0
< 1.0
<5.0
< 10.0
<5.0
<1.0
<25.0
<25.0
<50.0
<25.0
<25.0
1,2-Dichloroethylene, cis
< 1.0
< 1.0
< 1.0
<5.0
< 10.0
<5.0
5.8
<25.0
<25.0
<50.0
<25.0
<25.0
1,2-Dichloroethylene, trans
< 1.0
< 1.0
< 1.0
<5.0
< 10.0
<20.0
<1.0
<25.0
<25.0
<50.0
<25.0
<25.0
Ethyl benzene
2.3
2.3
1.2
<5.0
< 10.0
<5.0
30.7
<25.0
<25.0
<50.0
<25.0
<25.0
Isopropyl ether
2130
2040
1540
2610
1410
1300
2930
3630
2660
3340
3480
3740
Methyl ethyl ketone
<5.0 J
<5.0
<4.0
<20.0
<40.0
<20.0
<4.0
<125
<125
<250
<125
152
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
<50.0
< 100
<50.0
<10.0
<250
<250
<500
<250
<250
List 2 VOCs (jig/L)
Isopropyl alcohol
44.9 J
<30.0
<40.0
<200
< 1000
<500
449
<2500
<2500
<5000
<2500
<2500
2-Butyl alcohol
<30.0
<30.0
<40.0
<200
<400
<200
66.5
<1000
<1000
<2000
<1000
<1000
4-Methyl-2-pentanol
< 30.0 J
<30.0
<40.0
<200
<400
<200
<40.0
<1000
<1000
<2000
<1000
<1000
Methylene chloride
< 1.0
<4.0
<4.0
<20.0
<40.0
<20.0
<4.0
<100
<100
<200
<100
<100
Methyl isobutyl ketone
<5.0
<5.0
<4.0 J
<20.0
<40.0
<20.0
5.6
<125
<125
<250
<125
134
Toluene
3.2
11.3
7.4
6.3
< 10.0
<5.0
166
<25.0
26.2
<50.0
<25.0
60.5
Xylenes, total
3.6
6.9
4.3
< 15.0
<30.0
< 15.0
54.9
<75.0
<75.0
<150
<75.0
<75.0
Total VOCs Qig/L)
2203
2074
1564
2635
1410
1309
3788
3630
2712
3340
3508
4119
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW6
PW6
PW6
PW6a
PW6a
PW10
PW10
PW10
PW10
PW10
Sample Date:
10/25/2018
10/17/2019
10/25/2020
10/20/2021
11/1/2022
11/10/2006
11/29/2007
12/12/2008
12/7/2009
12/1/2010
Sample Code:
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<500
<500
<500
<625
<250 v1
< 50.0 J
<50.0
< 100
< 100
1640
Benzene
34.1
<25.0
25.8
<25.0
21.6
546
1240
1010
1060
423
1,1-Dichloroethane
<25.0
<25.0
<25.0
<25.0
<10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,2-Dichloroethane
<25.0
<25.0
<25.0
<25.0
<10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,1-Dichloroethylene
<25.0
<25.0
<25.0
<25.0
<10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 100
1,2-Dichloroethylene, cis
<25.0
<25.0
<25.0
<25.0
<10.0
15.7
10.3
114
< 10.0
< 100
1,2-Dichloroethylene, trans
<25.0
<25.0
<25.0
<25.0
<10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 100
Ethyl benzene
<25.0
<25.0
<25.0
<25.0
<10.0
257
240
639
248
126
Isopropyl ether
3340
2310
2700
2490
2400
12100
13300
13000
11200
7850
Methyl ethyl ketone
<125
<125
<125
<625
<250
< 50.0 J
<50.0
<40.0
<40.0
1400
Tetrahydrofuran
<250
<250
<250
<625
<250
369
465
321
233
< 1000
List 2 VOCs (jig/L)
Isopropyl alcohol
<2500
<2500
<2500
<2500
<1000
<300 J
<300
<400
<400
<10000
2-Butyl alcohol
<1000
<1000
<1000
ND
ND
<300
<300
<400
<400
<4000
4-Methyl-2-pentanol
<125
<1000
<1000
ND
ND
<300 J
501
<400
<400
<4000
Methylene chloride
<100
<100
<100
<125
<50.0
< 10.0
<40.0
< 40.0 J
<40.0
<400
Methyl isobutyl ketone
<1000
<125
<125
<625
<250
<50.0
538 J
<40.0
<40.0
<400
Toluene
<25.0
<25.0
<25.0
109
10.0
1190
384
4540
710
535
Xylenes, total
<75.0
<75.0
<75.0
<75.0
<30.0
919
737
1900
731
447
Total VOCs (jig/L)
3374
2310
2726
2599
2432
15397
17415
21524
14182
12421
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW10
PW10
PW10
PW10
PW10
PW10
Sample Date:
12/2/2011
11/15/2012
11/24/2013
11/20/2014
11/18/2015
11/3/2016
Sample Code:
0
0
DB
0
DB
0
DB
0
DB
0
DB
List 1 VOCs (jig/L)
Acetone
< 125
<25.0
<25.0
<1000
<20.0
<1000
<1000
<1000
<20.0
<500
<200
Benzene
1110
1420
1420
1130
1130
950
940
693
415
911
931
1,1-Dichloroethane
<5.0
1.2
1.3
<50.0
<1.0
<50.0
<50.0
<50.0
<1.0
<25.0
<10.0
1,2-Dichloroethane
10.3
9.6
12.9
<50.0
1.4
<50.0
<50.0
<50.0
<1.0
<25.0
<10.0
1,1-Dichloroethylene
<5.0
<1.0
<1.0
<50.0
<1.0
<50.0
<50.0
<50.0
<1.0
<25.0
<10.0
1,2-Dichloroethylene, cis
12.6
25.4
26.9
<50.0
6.2
<50.0
<50.0
<50.0
1.2
<25.0
<10.0
1,2-Dichloroethylene, trans
<20.0
<1.0
<1.0
<50.0
<1.0
<50.0
<50.0
<50.0
<1.0
<25.0
<10.0
Ethyl benzene
192
264
363
223
191
245
214
91.1
109
175
227
Isopropyl ether
6420
6870
6590
4940
4590
4170
3720
3110
828
4750
4750
Methyl ethyl ketone
<20.0
<4.0
<4.0
<250
<5.0
<250
<250
<250
<5.0
<125
<50.0
Tetrahydrofuran
203
251
233
<500
214
<500
<500
<500
131
<250
123
List 2 VOCs (jig/L)
Isopropyl alcohol
<500
<100
<100
<5000
<100
<5000
<5000
<5000
<100
<2500
<1000
2-Butyl alcohol
<200
<40.0
<40.0
<2000
<40.0
<2000
<2000
<2000
<40.0
<1000
<400
4-Methyl-2-pentanol
<200
<40.0
<40.0
<2000
<40.0
<2000
<2000
<2000
<40.0
<1000
<400
Methylene chloride
<20.0
<4.0
<4.0
<200
<4.0
<200
<200
<200
<4.0
<100
<40.0
Methyl isobutyl ketone
25.1
<4.0
4.6
<250
6.8
<250
<250
<250
<5.0
<125
<50.0
Toluene
456
991
1990
1320
198
1390
883
161
153
75.1
210
Xylenes, total
450
762
1000
688
449
883
779
273
380
329
454
Total VOCs Qig/L)
8879
11118
7544
7087
3173
6468
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW10
PW10
PW10
PW10
PW10a
PW10a
Sample Date:
11/2/2017
10/25/2018
10/18/2019
10/25/2020
10/20/2021
11/1/2022
Sample Code:
0
DB
0
DB
0
DB
0
DB
0
DB
0
List 1 VOCs (jig/L)
Acetone
<500
<1000
<500
<400
<400
<400
<400
<400
<1250
<1250
<500
Benzene
469
511
640
642
716
713
<20.0
<20.0
732
777
81.3
1,1-Dichloroethane
<25.0
<50.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
<20.0
1,2-Dichloroethane
<25.0
<50.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
<20.0
1,1-Dichloroethylene
<25.0
<50.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
<20.0
1,2-Dichloroethylene, cis
<25.0
<50.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
<20.0
1,2-Dichloroethylene, trans
<25.0
<50.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
<20.0
Ethyl benzene
78.7
83.3
92.7
88.8
37.4
37.5
<20.0
<20.0
<50.0
<50.0
<20.0
Isopropyl ether
5460
5420
2700
2680
3230
3310
2750
2880
3920
4100
3430 v1
Methyl ethyl ketone
<125
<250
<125
<100
<100
<100
<100
<100
<1250
<1250
<500
Tetrahydrofuran
<250
<500
<250
<200
<200
<200
<200
<200
<1250
<1250
<500
List 2 VOCs (jig/L)
Isopropyl alcohol
<2500
<5000
<2500
<2000
<2000
<2000
<2000
<2000
<5000
<5000
<2000
2-Butyl alcohol
<1000
<2000
<1000
<800
<800
<800
<800
<800
ND
ND
ND
4-Methyl-2-pentanol
<1000
<2000
<125
<100
<800
<800
<800
<800
ND
ND
ND
Methylene chloride
<100
<200
<100
<80.0
<80.0
<80.0
<80.0
<80.0
<250
<250
<100
Methyl isobutyl ketone
<125
<250
<1000
<800
<100
<100
<100
<100
<1250
<1250
<500
Toluene
275
295
150
108
<20.0
<20.0
<20.0
<20.0
<50.0
<50.0
33.9
Xylenes, total
338
296
339
324
270
282
<60.0
<60.0
162
160
66.7
Total VOCs (jig/L)
6613
3882
4298
2815
4926
3612
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW11
PW11
PW11
PW11
PW11
PW11
PW11
PW11
PW11
PW11
PW11
PW11
Sample Date:
11/10/2006
11/29/2007
11/21/2008
12/7/2009
12/7/2010
12/2/2011
11/15/2012
11/23/2013
11/20/2014
11/18/2015
11/3/2016
11/2/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
17.9 J
<5.0
10.6
<50.0
<500
< 125
<25.0
<20.0
<2000
<4000
<1000
<1000
Benzene
70.0
74.7
71.7
65.6
69.6
74.4
114
122
112
<200
154
139
1,1-Dichloroethane
< 1.0
< 1.0
< 1.0
<5.0
<50.0
<5.0
<1.0
<1.0
<100
<200
<50.0
<50.0
1,2-Dichloroethane
< 1.0
< 1.0
< 1.0
<5.0
<50.0
<5.0
10.3
<1.0
<100
<200
<50.0
<50.0
1,1-Dichloroethylene
< 1.0
< 1.0
< 1.0
<5.0
<50.0
<5.0
<1.0
<1.0
<100
<200
<50.0
<50.0
1,2-Dichloroethylene, cis
< 1.0
< 1.0
< 1.0
<5.0
<50.0
<5.0
6.1
<1.0
<100
<200
<50.0
<50.0
1,2-Dichloroethylene, trans
< 1.0
< 1.0
< 1.0
<5.0
<50.0
<20.0
<1.0
<1.0
<100
<200
<50.0
<50.0
Ethyl benzene
2.5
2.8
< 1.0
<5.0
<50.0
<5.0
37.0
5.2
<100
<200
<50.0
<50.0
Isopropyl ether
6260
6930
6030
7230
7220
5820
7800
6210
4330
14500
7080
6690
Methyl ethyl ketone
<5.0 J
7.9
<4.0
<20.0
<200
<20.0
<4.0
7.8
<500
1110
<250
<250
Tetrahydrofuran
11.4
13.2
10.6
<50.0
<500
<50.0
26.7
23.5
<1000
<2000
<500
<500
List 2 VOCs (jig/L)
Isopropyl alcohol
512 J
<30.0
<40.0
<200
<5000
<500
<100
<100
<10000
<20000
<5000
<5000
2-Butyl alcohol
<30.0
<30.0
<40.0
<200
<2000
<200
<40.0
<40.0
<4000
<8000
<2000
<2000
4-Methyl-2-pentanol
< 30.0 J
<30.0
<40.0
<200
<2000
<200
<40.0
<40.0
<4000
<8000
<2000
<2000
Methylene chloride
< 1.0
<4.0
<4.0
<20.0
<200
<20.0
<4.0
<4.0
<400
<800
<200
<200
Methyl isobutyl ketone
<5.0
<5.0
<4.0 J
<20.0
<200
<20.0
9.3
10.6
<500
<1000
<250
<250
Toluene
4.7
7.2
4.1
8.4
<50.0
6.4
243
16.0
<100
<200
<50.0
60.9
Xylenes, total
22.3
30.3
27.0
17.3
< 150
< 150
127
59.5
<300
<600
<150
<150
Total VOCs Qig/L)
6901
7066
6154
7321
7290
5901
8373
6455
4442
15610
7234
6890
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-l (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells
Abresch Site
Sample Location:
PW11
PW11
PW11
PW11a
PW11a
Sample Date:
10/25/2018
10/15/2019
10/25/2020
10/20/2021
11/1/2022
Sample Code:
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<500
<500
<500
<2500
<625 v1
Benzene
117
73.7
85.5
148
64.1
1,1-Dichloroethane
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethane
<25.0
<25.0
<25.0
<100
<25.0
1,1-Dichloroethylene
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethylene, cis
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethylene, trans
<25.0
<25.0
<25.0
<100
<25.0
Ethyl benzene
<25.0
<25.0
<25.0
<100
<25.0
Isopropyl ether
3150
3360
4630
8340
3760
Methyl ethyl ketone
<125
<125
<125
<2500
<625
Tetrahydrofuran
<250
<250
<250
<2500
<625
List 2 VOCs (jig/L)
Isopropyl alcohol
<2500
<2500
<2500
<10000
<2500
2-Butyl alcohol
<1000
<1000
<1000
ND
ND
4-Methyl-2-pentanol
<125
<1000
<1000
ND
ND
Methylene chloride
<100
<100
<100
<500
<125
Methyl isobutyl ketone
<1000
<125
<125
<2500
<625
Toluene
<25.0
<25.0
<25.0
<100
<25.0
Xylenes, total
<75.0
<75.0
<75.0
<300
<75.0
Total VOCs (jig/L)
3267
3434
4716
8488
3824
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04a(Dl)
-------
Table D-2
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
Sample Date:
5/18/2006
11/9/2006
5/24/2007
11/29/2007
5/15/2008
11/20/2008
5/14/2009
12/7/2009
5/20/2010
Sample Code:
0
0
DB
0
0
DB
0
DB
0
0
0
0
DB
List 1 VOCs (jig/L)
Acetone
<50.0
12.8 J
17.9 J
25.8
<5.0
<5.0
< 10.0 J
< 10.0 J
<50.0
<50.0
<50.0
<50.0
<50.0
Benzene
59.3
105
99.0
58.8
75.8
80.1
40.8
40.1
76.0
62.9
80.6
54.0
57.6
1,1-Dichloroethane
< 10.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
1,2-Dichloroethane
< 10.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
1,1-Dichloroethylene
< 10.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
1,2-Dichloroethylene, cis
< 10.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
1,2-Dichloroethylene, trans
< 10.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
Ethyl benzene
163
236
197
49.0
59.2
63.5
3.6
3.1
67.5
9.2
34.1
6.9
6.0
Isopropyl ether
4610
4610
5390
2980
3360
3700
1960
1960
3160
3760
4560
3590
3740
Methyl ethyl ketone
<50.0
<5.0 J
<5.0 J
< 10.0
<5.0
<5.0
<4.0
<4.0
23.4
<20.0
<20.0
<20.0
<20.0
Tetrahydrofuran
< 100
< 10.0
< 10.0
<20.0
< 10.0
< 10.0
< 10.0
< 10.0
<50.0
<50.0
<50.0
<50.0
<50.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<300
343 J
473 J
<60.0
<30.0
<30.0
<40.0
<40.0
<200
<200
<200
<200
<200
2-Butyl alcohol
<300 J
<30.0
<30.0
<60.0
<30.0
<30.0
<40.0
<40.0
<200
<200
<200
<200
<200
4-Methyl-2-pentanol
<300
< 30.0 J
< 30.0 J
<60.0
<30.0
<30.0
<40.0
<40.0
<200
<200
<200
<200
<200
Methylene chloride
< 10.0
<1.0
<1.0
<2.0
<4.0
<4.0
<4.0
<4.0
<20.0
<20.0
<20.0
<20.0
<20.0
Methyl isobutyl ketone
<50.0
<5.0
<5.0
< 10.0
<5.0
<5.0
<4.0
<4.0
< 20.0 J
<20.0
<20.0
<20.0
<20.0
Toluene
14.3
12.4
10.6
<2.0
<1.0
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<5.0
Xylenes, total
432
1020
966
409 J
575
592
201
189
802
330
831
567
585
Total VOCs Qig/L)
5279
6746
3523
4253
2199
4129
4162
5506
4303
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
Sample Date:
12/7/2010
5/12/2011
12/1/2011
6/14/2012
11/13/2012
6/12/2013
11/21/2013
6/13/2014
11/18/2014
6/15/2015
Sample Code:
0
0
0
DB
0
DB
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<250
< 125
<500
<2500
<25.0
<25.0
<250
<1000
<20.0
<1000
<400
<400
Benzene
80.0
37.4
294
339
169
174
133
112
98.0
55.5
114
51.5
1,1-Dichloroethane
<25.0
<5.0
<20.0
< 100
< 1.0
<1.0
<10.0
<50.0
<1.0
<50.0
<20.0
<20.0
1,2-Dichloroethane
<25.0
<5.0
<20.0
< 100
< 1.0
<1.0
<10.0
<50.0
<1.0
<50.0
<20.0
<20.0
1,1-Dichloroethylene
<25.0
<5.0
<20.0
< 100
< 1.0
<1.0
<10.0
<50.0
<1.0
<50.0
<20.0
<20.0
1,2-Dichloroethylene, cis
<25.0
<5.0
<20.0
< 100
< 1.0
<1.0
<10.0
<50.0
<1.0
<50.0
<20.0
<20.0
1,2-Dichloroethylene, trans
<25.0
<20.0
<80.0
<400
< 1.0
<1.0
<10.0
<50.0
<1.0
<50.0
<20.0
<20.0
Ethyl benzene
35.2
<5.0
775
884
101
105
<10.0
<50.0
15.2
<50.0
<20.0
<20.0
Isopropyl ether
3970
2380
8780
9940
5910
5840
4610
4090
4140
3810
4090
4280
Methyl ethyl ketone
< 100
<20.0
<80.0
<400
<4.0
<4.0
<40.0
<250
<5.0
<250
<100
<100
Tetrahydrofuran
<250
<50.0
<200
< 1000
< 10.0
< 10.0
<100
<500
<10.0
<500
<200
<200
List 2 VOCs (jig/L)
Isopropyl alcohol
<2500
<500
<2000
<10000
< 100
< 100
<1000
<5000
<100
<5000
<2000
<2000
2-Butyl alcohol
< 1000
<200
<800
<4000
<40.0
<40.0
<400
<2000
<40.0
<2000
<800
<800
4-Methyl-2-pentanol
< 1000
<200
<800
<4000
<40.0
<40.0
<400
<2000
<40.0
<2000
<800
<800
Methylene chloride
< 100
<20.0
<80.0
<400
<4.0
<4.0
<40.0
<200
<4.0
<200
<80.0
<80.0
Methyl isobutyl ketone
< 100
<20.0
<80.0
<400
<4.0
<4.0
<40.0
<250
<5.0
<250
<100
<400
Toluene
45.0
<5.0
1210
1360
250
252
30.3
<50.0
229
250
<20.0
<20.0
Xylenes, total
1080
366
3150
3800
2060
2020
1890
1150
1290
490
1640
627
Total VOCs Qig/L)
5210
2783
15266
8441
6663
5352
5772
4606
5844
4959
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW7
PW7
PW7
PW7
PW7
PW7
PW7
PW7
Sample Date:
11/18/2015
6/15/2016
11/1/2016
6/14/2017
10/31/2017
6/22/2018
10/24/2018
6/5/2019
Sample Code:
0
DB
0
0
DUP
0
0
DB
0
0
DB
0
List 1 VOCs (jig/L)
Acetone
<1000
<1000
<200
<200
<500
<500
<500
<500
<200
<200
<200
<200
Benzene
<50.0
<50.0
37.9
46.7
36.6
77.0
102
98.5
37.9
41.3
36.1
83.2
1,1-Dichloroethane
<50.0
<50.0
<10.0
<10.0
<25.0
<25.0
<25.0
<25.0
<10.0
<10.0
<10.0
12.2
1,2-Dichloroethane
<50.0
<50.0
<10.0
<10.0
<25.0
<25.0
<25.0
<25.0
<10.0
<10.0
<10.0
84.3
1,1-Dichloroethylene
<50.0
<50.0
<10.0
<10.0
<25.0
<25.0
<25.0
<25.0
<10.0
<10.0
<10.0
<10.0
1,2-Dichloroethylene, cis
62.3
<50.0
<10.0
<10.0
<25.0
<25.0
<25.0
<25.0
<10.0
<10.0
<10.0
126
1,2-Dichloroethylene, trans
<50.0
<50.0
<10.0
<10.0
<25.0
<25.0
<25.0
<25.0
<10.0
<10.0
<10.0
<10.0
Ethyl benzene
<50.0
<50.0
17.7
12
<25.0
<25.0
<25.0
<25.0
<10.0
43.4
44.5
149
Isopropyl ether
2490
2280
1730
2760
2390
4360
4090
4090
1620
1560
1240
1480
Methyl ethyl ketone
<250
<250
<50.0
<50.0
<125
<125
<125
<125
<50.0
<50.0
<50.0
<50.0
Tetrahydrofuran
<500
<500
<100
<100
<250
<250
<250
<250
<100
<100
<100
<100
List 2 VOCs (jig/L)
Isopropyl alcohol
<5000
<5000
<1000
<1000
<2500
<2500
<2500
<2500
<1000
<1000
<1000
<1000
2-Butyl alcohol
<2000
<2000
<400
<400
<1000
<1000
<1000
<1000
<400
<400
<400
<400
4-Methyl-2-pentanol
<2000
<2000
<400
<400
<1000
<1000
<1000
<1000
<50.0
<50.0
<50.0
<400
Methylene chloride
<200
<200
<40.0
<40.0
<100
<100
<100
<100
<40.0
<40.0
<40.0
<40.0
Methyl isobutyl ketone
<250
<250
<50.0
<50.0
<125
<125
<125
<125
<400
<400
<400
<50.0
Toluene
159
127
<10.0
66.5
46.5
38.2
<25.0
<25.0
<10.0
194
195
1620
Xylenes, total
415
386
701
843
617
1200
1870
1850
668
953
927
1210
Total VOCs Qig/L)
2960
2487
3409
5675
6050
2326
2617
4765
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW7
PW7
PW7
PW7
PW7a
PW7a
Sample Date:
10/16/2019
6/30/2020
10/24/2020
6/2/2021
10/19/2021
6/16/2022
10/31/2022
Sample Code:
0
DB
0
0
DB
0
DB
0
DB
0
0
List 1 VOCs (jig/L)
Acetone
<200
<200
<100
<40.0
<200
<500
<200
<1250
<1250
<2500
<500 v1
Benzene
36.9
37.5
96.1
127
137
79.1
81.7
116
116
298
124
1,1-Dichloroethane
<10.0
<10.0
<5.0
<2.0
<10.0
<25.0
<10.0
<50.0
<50.0
<50.0
<20.0
1,2-Dichloroethane
<10.0
<10.0
11.2
<2.0
<10.0
<25.0
<10.0
<50.0
<50.0
<50.0
<20.0
1,1-Dichloroethylene
<10.0
<10.0
<5.0
<2.0
<10.0
<25.0
<10.0
<50.0
<50.0
<50.0 R1
<20.0
1,2-Dichloroethylene, cis
<10.0
<10.0
16.8
<2.0
<10.0
<25.0
<10.0
<50.0
<50.0
210
<20.0
1,2-Dichloroethylene, trans
<10.0
<10.0
<5.0
<2.0
<10.0
<25.0
<10.0
<50.0
<50.0
<50.0
<20.0
Ethyl benzene
<10.0
<10.0
7.3
<2.0
<10.0
<25.0
11.4
<50.0
<50.0
650
92.9
Isopropyl ether
1090
1100
3590
4290
4110
2870
2760
3960
3980
1860
3310
Methyl ethyl ketone
<50.0
<50.0
<25.0
<10.0
<50.0
<125
<50.0
<1250
<1250
<500
<500
Tetrahydrofuran
<100
<100
<50.0
<20.0
<100
<250
<100
<1250
<1250
<250
<500
List 2 VOCs (jig/L)
Isopropyl alcohol
<1000
<1000
<500
<200
<1000
<2500
<1000
<5000
<5000
1260 C5
<2000
2-Butyl alcohol
<400
<400
<200
<80.0
<400
<1000
<400
ND
ND
ND
ND
4-Methyl-2-pentanol
<400
<400
<200
<80.0
<400
<1000
<400
ND
ND
ND
ND
Methylene chloride
<40.0
<40.0
<20.0
<8.0
<40.0
<100
<40.0
<250
<250
<250 LO
<100
Methyl isobutyl ketone
<50.0
<50.0
<25.0
<10.0
<50.0
<125
<50.0
<1250
<1250
<500
<500
Toluene
<10.0
<10.0
51.3
<2.0
<10.0
58.6
61.2
277
276
4760
<20.0
Xylenes, total
648
631
1540
2630
2540
1430
1500
2230
2340
3070
2110
Total VOCs (jig/L)
1772
5313
6917
4426
6648
12108
5637
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
C5 = The reported concentration is an estimate. The continuing calibration standard associated with this data responded high. Data is likely to show a high bias.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW8
PW8
PW8
PW8
PW8
PW8
PW8
Sample Date:
5/18/2006
11/9/2006
5/24/2007
11/29/2007
5/15/2008
11/20/2008
5/14/2009
Sample Code:
0
DB
0
0
DB
0
0
0
DB
0
DB
List 1 VOCs (jig/L)
Acetone
<50.0
11.1
20.8 J
28.4
16.1
<5.0 J
< 10.0 J
20.7 J
21.7 J
<50.0
< 10.0
Benzene
133
142
294
197
184
308 J
96.4
434
411
300
292
1,1-Dichloroethane
< 10.0
1.4
1.2
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<5.0
<1.0
1,2-Dichloroethane
< 10.0
< 1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
<1.0
1,1-Dichloroethylene
< 10.0
< 1.0
<1.0
<2.0
<1.0
< 1.0 J
<1.0
<1.0
<1.0
<5.0
<1.0
1,2-Dichloroethylene, cis
< 10.0
< 1.0
<1.0
<2.0
<1.0
< 1.0 J
<1.0
<1.0
<1.0
<5.0
<1.0
1,2-Dichloroethylene, trans
< 10.0
< 1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
<1.0
Ethyl benzene
60.9
68.8
44.7
12.4
14.6
15.0
< 1.0
32.1
28.0
<5.0
2.6
Isopropyl ether
3120
2660
5880
4080
4130
6990 J
2200
7630
7890
7570
7300
Methyl ethyl ketone
<50.0
<5.0
<5.0 J
< 10.0
<5.0
6.9
<4.0
5.0
<4.0
<20.0
<4.0
Tetrahydrofuran
< 100
17.3
36.9
32.3
29.1
56.5
10.6
39.2
45.9
<50.0
43.7
List 2 VOCs (jig/L)
Isopropyl alcohol
<300
<30.0
304 J
<60.0
<30.0
<30.0
<40.0
<40.0
<40.0
<200
<40.0
2-Butyl alcohol
<300 J
<30.0
<30.0
<60.0
<30.0
<30.0
<40.0
<40.0
<40.0
<200
<40.0
4-Methyl-2-pentanol
<300
<30.0
< 30.0 J
<60.0
<30.0
<30.0
<40.0
<40.0
<40.0
<200
<40.0
Methylene chloride
< 10.0
< 1.0
< 1.0
<2.0
1.0
<4.0 J
<4.0
<4.0
<4.0
<20.0
<4.0
Methyl isobutyl ketone
<50.0
<5.0
<5.0
< 10.0
<5.0
<5.0
<4.0
<4.0 J
<4.0
<20.0
<4.0
Toluene
< 10.0
< 1.0
< 1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<5.0
< 1.0
Xylenes, total
141
138
226
127
150
261 J
25.7
312
276
88.5
98.6
Total VOCs Qig/L)
3247
6808
4501
7637
2333
8573
7848
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW8
PW8
PW8
PW8
PW8
PW8
PW8
PW8
Sample Date:
12/7/2009
5/20/2010
12/7/2010
5/12/2011
12/2/2011
6/14/2012
11/13/2012
6/12/2013
Sample Code:
0
DB
0
0
DB
0
DB
0
0
0
0
DB
List 1 VOCs (jig/L)
Acetone
< 100
<50.0
<50.0
<250
<50.0
<25.0
<25.0
402
<25.0
<250
<1000
<1000
Benzene
413
388
178
476
436
220
219
428
257
851
177
195
1,1-Dichloroethane
< 10.0
<5.0
<5.0
<25.0
<5.0
< 1.0
< 1.0
< 10.0
< 1.0
<10.0
<50.0
<50.0
1,2-Dichloroethane
10.5
<5.0
<5.0
<25.0
<5.0
< 1.0
< 1.0
< 10.0
< 1.0
<10.0
<50.0
<50.0
1,1-Dichloroethylene
< 10.0
<5.0
<5.0
<25.0
<5.0
< 1.0
< 1.0
< 10.0
< 1.0
<10.0
<50.0
<50.0
1,2-Dichloroethylene, cis
< 10.0
<5.0
<5.0
<25.0
<5.0
< 1.0
< 1.0
< 10.0
< 1.0
<10.0
<50.0
<50.0
1,2-Dichloroethylene, trans
< 10.0
<5.0
<5.0
<25.0
<5.0
<4.0
<4.0
<40.0
< 1.0
<10.0
<50.0
<50.0
Ethyl benzene
< 10.0
8.7
<5.0
<25.0
13.4
62.3
61.8
158
59.8
377
<50.0
<50.0
Isopropyl ether
9680
8930
3600
9690
10300
4640
4890
8760
3690
15900
2940
3190
Methyl ethyl ketone
<40.0
<20.0
<20.0
< 100
<20.0
<4.0
<4.0
221
<4.0
<40.0
<250
<250
Tetrahydrofuran
< 100
60.0
<50.0
<250
146
< 10.0
< 10.0
< 100
< 10.0
<100
<500
<500
List 2 VOCs (jig/L)
Isopropyl alcohol
<400
<200
<200
<2500
<500
< 100
< 100
< 1000
< 100
<1000
<5000
<5000
2-Butyl alcohol
<400
<200
<200
< 1000
<200
<40.0
<40.0
<400
<40.0
<400
<2000
<2000
4-Methyl-2-pentanol
<400
<200
<200
< 1000
<200
<40.0
<40.0
<400
<40.0
<400
<2000
<2000
Methylene chloride
<40.0
<20.0
<20.0
< 100
<20.0
<4.0
<4.0
<40.0
<4.0
<40.0
<200
<200
Methyl isobutyl ketone
<40.0
<20.0
<20.0
< 100
<20.0
<4.0
<4.0
1290
79.6
130
<250
<250
Toluene
< 10.0
<5.0
<5.0
<25.0
<5.0
19.1
17.9
64.5
44.5
610
<50.0
<50.0
Xylenes, total
159
158
37.9
194
248
198
198
370
115
1180
<150
<150
Total VOCs Qig/L)
9904
3816
10752
5263
11694
4246
19048
3251
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW8
PW8
PW8
PW8
PW8
PW8
PW8
PW8
PW8
PW8
PW8
Sample Date:
11/22/2013
6/13/2014
11/19/2014
6/16/2015
11/18/2015
6/15/2016
11/1/2016
6/14/2017
10/31/2017
6/21/2018
10/25/2018
Sample Code:
0
0
DB
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<100
<20.0
<2000
<400
<20.0
<400
<500
<500
<500
<2000
<500
Benzene
503
53.0
59.2
270
70.3
17.7
304
550
446
811
968
304
1,1-Dichloroethane
<1.0
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethane
<1.0
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
1,1-Dichloroethylene
<1.0
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethylene, cis
<1.0
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
1,2-Dichloroethylene, trans
<1.0
<5.0
<1.0
<100
<80.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
Ethyl benzene
27.7
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
40.5
40.2
<100
<25.0
Isopropyl ether
9960
728
985
3810
1720
198
4250
10600
5700
11000
15500
4600
Methyl ethyl ketone
<5.0
<25.0
<5.0
<500
<100
<5.0
<100
<125
<125
<125
<500
<125
Tetrahydrofuran
<10.0
<50.0
<10.0
<1000
<200
<10.0
<200
<250
<250
<250
<1000
<250
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<500
<100
42100
<2000
<100
<2000
<2500
<2500
<2500
<10000
<2500
2-Butyl alcohol
<40.0
<200
<40.0
<4000
<800
<40.0
<800
<1000
<1000
<1000
<4000
<1000
4-Methyl-2-pentanol
<40.0
<200
<40.0
<4000
<800
<40.0
<800
<1000
<1000
<1000
<500
<125
Methylene chloride
<4.0
<20.0
<4.0
<400
<80.0
<4.0
<80.0
<100
<100
<100
<400
<100
Methyl isobutyl ketone
<5.0
<25.0
<5.0
<500
<100
<5.0
<100
<125
<125
182
<4000
<1000
Toluene
<1.0
<5.0
<1.0
<100
<20.0
<1.0
<20.0
<25.0
<25.0
<25.0
<100
<25.0
Xylenes, total
454
<15.0
3.5
<300
<60.0
5.4
391
623
740
1240
1050
317
Total VOCs Qig/L)
10945
915
46180
1790
221
4945
11773
6927
13273
17518
5221
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW8
PW8
PW8
PW8
PW8
PW8a
PW8a
PW8a
Sample Date:
6/5/2019
10/16/2019
6/30/2020
10/24/2020
6/2/2021
10/11/2021
6/15/2022
10/31/2022
Sample Code:
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<500
<500
<20.0
<20.0
<1000
<20
<2500
<3120 v1
Benzene
375
165
12.6
812
1140
1200
746
836
1,1-Dichloroethane
<25.0
<25.0
<1.0
<1.0
<50.0
<1.0
<50.0
<125
1,2-Dichloroethane
<25.0
<25.0
<1.0
<1.0
<50.0
<1.0
<50.0
<125
1,1-Dichloroethylene
<25.0
<25.0
<1.0
<1.0
<50.0
<1.0
<50.0 R1
<125
1,2-Dichloroethylene, cis
<25.0
<25.0
<1.0
<1.0
<50.0
<1.0
<50.0
<125
1,2-Dichloroethylene, trans
<25.0
<25.0
<1.0
<1.0
<50.0
<1.0
<50.0
<125
Ethyl benzene
<25.0
<25.0
<1.0
6.4
<50.0
2.4
<50.0
<125
Isopropyl ether
5850
2150
147
9180
14800
2600
14000 E
19100
Methyl ethyl ketone
<125
<125
<5.0
<5.0
<250
<20
<500
<3120
Tetrahydrofuran
<250
<250
<10.0
<10.0
<500
99
<250
<3120
List 2 VOCs (jig/L)
Isopropyl alcohol
<2500
<2500
<100
<100
<5000
ND
251 C5
<12500
2-Butyl alcohol
<1000
<1000
<40.0
<40.0
<2000
ND
ND
ND
4-Methyl-2-pentanol
<1000
<1000
<40.0
<40.0
<2000
ND
ND
ND
Methylene chloride
<100
<100
<4.0
<4.0
<200
<5.0
<250 LO
<625
Methyl isobutyl ketone
<125
<125
<5.0
<5.0
<250
<5.0
<500
<3120
Toluene
<25.0
<25.0
<1.0
1.0
<50.0
<1.0
<50.0
<125
Xylenes, total
596
179
16.2
1180
1490
1200
506
676
Total VOCs (jig/L)
6821
2494
176
11179
17430
5101
15503
20612
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
C5 = The reported concentration is an estimate. The continuing calibration standard associated with this data responded high. Data is likely to show a high bias.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
E = Analyte concentration exceeded the calibration range. The reported result is estimated.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9
Sample Date:
6/14/2012
11/13/2012
6/12/2013
11/20/2013
6/13/2014
11/18/2014
6/15/2015
11/18/2015
6/15/2016
11/1/2016
6/14/2017
10/31/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<25.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Benzene
12.7
1.2
5.2
<1.0
<1.0
<1.0
<1.0
1.5
3.7
1.6
1.4
2.9
1,1-Dichloroethane
5.9
<1.0
2.4
<1.0
1.2
<1.0
<1.0
<1.0
2.1
2.3
1.3
<1.0
1,2-Dichloroethane
60.8
5.0
13.9
1.5
2.4
1.9
2.4
2
5.0
2.6
1.6
4.2
1,1-Dichloroethylene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
32.4
1.8
13.3
<1.0
<1.0
<1.0
1.5
4.1
10.8
3.9
2.8
4.0
1,2-Dichloroethylene, trans
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
11.4
<1.0
6.3
<1.0
<1.0
<1.0
<1.0
<1.0
1.8
<1.0
<1.0
<1.0
Isopropyl ether
707
40.4
103
7.6
34.9
12.8
24
70
34.4
30
38.5
29.9
Methyl ethyl ketone
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Tetrahydrofuran
< 10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
< 100
<100
45.6 J
<100
<100
<100
<100
<100
<100
<100
<100
170
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
4.5
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
36.7
<4.0
<5.0
<5.0
<5.0
<5.0
<20.0
59.9
<5.0
<5.0
<5.0
<5.0
Toluene
44.7
<1.0
2.1
<1.0
<1.0
<1.0
<1.0
11
<1.0
<1.0
<1.0
<1.0
Xylenes, total
21.9
<3.0
8.5
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
938
48
200
9
39
15
28
149
58
40
46
211
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
PW9 added to VOC sampling network in 2012.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
raggsg!
Table D-2 (cont'd)
Groundwater Quality Data - 2006-2022
VOC Pumpout Wells Converted to Monitoring Wells
Abresch Site
Sample Location:
PW9
PW9
PW9
PW9
PW9
PW9
PW9
PW9a
PW9a
PW9a
Sample Date:
6/21/2018
10/24/2018
6/5/2019
10/16/2019
6/30/2020
10/24/2020
6/2/2021
10/11/2021
6/15/2022
10/31/2022
Sample Code:
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20.0
<40.0
<20.0
<20.0
<20.0
<20
<50.0
<25.0 v1
Benzene
<1.0
2
7.2
7
3.4
1.5
<1.0
1.4
17.6
1.3
1,1-Dichloroethane
<1.0
<1.0
1.3
<2.0
1.8
<1.0
<1.0
<1.0
7.03
<1.0
1,2-Dichloroethane
1.8
2.6
<1.0
<2.0
<1.0
<1.0
<1.0
1.1
23.6
2.3
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.00 R1
<1.0
1,2-Dichloroethylene, cis
1.7
1.8
4.0
3.9
2.4
<1.0
<1.0
1.2
24.2
1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.0
Ethyl benzene
<1.0
<1.0
5.2
<2.0
<1.0
<1.0
<1.0
<1.0
3.48
<1.0
Isopropyl ether
26.1
30.5
362
204
150
30.0
203
120
420 E
19.2
Methyl ethyl ketone
<5.0
<5.0
<5.0
<10.0
<5.0
<5.0
<5.0
<20
<10.0
<25.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<20.0
<10.0
<10.0
<10.0
<20
<5.00
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<200
<100
<100
<100
ND
<5.00
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<80.0
<40.0
<40.0
<40.0
ND
ND
ND
4-Methyl-2-pentanol
<5.0
<5.0
<40.0
<80.0
<40.0
<40.0
<40.0
ND
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<8.0
<4.0
<4.0
<4.0
<5.0
<5.00 LO
<5.0
Methyl isobutyl ketone
<40.0
<40.0
161
<10.0
<5.0
<5.0
<5.0
<5.0
<10.0
<25.0
Toluene
<1.0
<1.0
74.7
<2.0
1.0
<1.0
<1.0
<1.0
<1.00
<1.0
Xylenes, total
<3.0
<3.0
10.2
<6.0
<3.0
<3.0
<3.0
ND
6.54
<3.0
Total VOCs (jig/L)
30
37
626
215
159
32
203
124
502
24
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
PW9 added to VOC sampling network in 2012.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-04b(D2)
-------
Table D-3
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W20
W20
W20
W20
W20
W20
W25
W25
W25
W25
W25
W25
Sample Date:
11/20/2008
12/2/2011
11/16/2012
11/19/2015
10/26/2018
10/12/2021
11/7/2006
11/27/2007
11/18/2008
12/2/2009
11/30/2010
11/29/2011
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
2770
3010
3030
208
2370
2600
<5.0 J
<5.0
< 10.0
< 10.0
< 10.0
<25.0
Benzene
65.3
56.2
45.9
65
33.2
55
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethane
<5.0
<5.0
<25.0
6.7
<25.0
1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethane
24.9
14.9
<25.0
6
<25.0
18
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethylene
<5.0
<5.0
<25.0
<1.0
<25.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
113
44.4
36
11
72.9
180
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethylene, trans
<5.0
<20.0
<25.0
<1.0
<25.0
<1.0
< 1.0
< 1.0
<1.0
<1.0
<1.0
<4.0
Ethyl benzene
113
133
94.2
199
55.8
120
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Isopropyl ether
13900
8370
11400
2810
5620
3200
1.1 J
<5.0
<4.0
<4.0
<4.0
<4.0
Methyl ethyl ketone
4900
2390
3240
196
2550
4600
<5.0 J
<5.0
<4.0
<4.0
<4.0
<4.0
Tetrahydrofuran
54.5
<50.0
<250
18.2
<250
160
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
1750
1640
<2500
<100
<2500
ND
< 30.0 J
<30.0
<40.0
<40.0
< 100
< 100
2-Butyl alcohol
1750
925
1040
64.3
1230
ND
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
753
631
<1000
48.6
3870
ND
< 30.0 J
<30.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
44.8
26.2
<100
<4.0
<100
<5.0
< 1.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
4520
2130
2770
220
<1000
6000
<5.0
<5.0
<4.0
<4.0
<4.0
<4.0
Toluene
4390
3520
1520
2520
1740
3100
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Xylenes, total
405
450
329
844
194
410
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
35554
23340
23505
7217
17736
20444
1
ND
ND
ND
ND
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W25
W25
W25
W25
W25
W25
W25
W25
W25
W25a
W25a
Sample Date:
11/15/2012
11/23/2013
11/19/2014
11/19/2015
11/2/2016
11/1/2017
10/24/2018
10/17/2019
10/21/2020
10/12/2021
11/2/2022
Sample Code:
0
0
DB
0
DB
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<25.0
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
<4.0
2.2
2.3
1.0
<1.0
<1.0
<1.0
<1.0
<1.0
2.6
3.0
51
53.0 v1
Methyl ethyl ketone
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<25.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<100
<100
<100
<100
<100
<100
<100
<100
ND
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
<40.0
<40.0
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
Methyl isobutyl ketone
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<40.0
<5.0
<5.0
<5.0
<25.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
<3.0
Total VOCs (jig/L)
ND
2
1
ND
ND
ND
ND
3
3
51
53
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W26
W26
W26
W26
W26
W26
W26
W26
W26
W26R
W26R
Sample Date:
5/18/2006
11/9/2006
5/24/2007
11/29/2007
5/15/2008
11/20/2008
5/14/2009
12/3/2009
5/20/2010
6/13/2012
11/15/2012
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
DB
List 1 VOCs (jig/L)
Acetone
254
146 J
27.6
<5.0
< 10.0 J
15.5 J
<50.0
<50.0
<50.0
<25.0
<125
<125
Benzene
304
443
116
96.3
63.8
443
42.4
192
12.0
77.2
42.8
37.6
1,1-Dichloroethane
81.3 J
26.8
22.0
17.1
17.0
10.7
<5.0
<5.0
<5.0
3.3
<5.0
<5.0
1,2-Dichloroethane
329
110
25.2
< 1.0
13.4
< 1.0
<5.0
<5.0
<5.0
23.6
20.0
18.3
1,1-Dichloroethylene
< 10.0
< 1.0
<2.0
< 1.0
< 1.0
< 1.0
<5.0
<5.0
<5.0
< 1.0
<5.0
<5.0
1,2-Dichloroethylene, cis
12.2
5.6
<2.0
< 1.0
< 1.0
3.7
<5.0
<5.0
<5.0
1.0
<5.0
<5.0
1,2-Dichloroethylene, trans
< 10.0
3.1
<2.0
1.8
< 1.0
3.5
<5.0
<5.0
<5.0
< 1.0
<5.0
<5.0
Ethyl benzene
144
194
56.1
27.1
52.4
45.4
16.0
35.8
<5.0
98.7
42.5
37.8
Isopropyl ether
417
1850
599
343
309
2260
533
1240
830
719
400
352
Methyl ethyl ketone
155
160 J
17.6
<5.0
<4.0
11.1
<20.0
<20.0
<20.0
<4.0
<20.0
<20.0
Tetrahydrofuran
< 100
16.3
<20.0
< 10.0
< 10.0
29.1
<50.0
<50.0
<50.0
25.3
<50.0
<50.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<300
108 J
<60.0
<30.0
<40.0
<40.0
<200
<200
<200
< 100
<500
<500
2-Butyl alcohol
<300 J
70.5
<60.0
<30.0
<40.0
<40.0
<200
<200
<200
<40.0
<200
<200
4-Methyl-2-pentanol
1210
677 J
78.9
46.9
<40.0
<40.0
<200
<200
<200
<40.0
<200
<200
Methylene chloride
13.5 J
15.5
6.2
<4.0
<4.0
11.9 b
<20.0
<20.0
<20.0
<4.0
<20.0
<20.0
Methyl isobutyl ketone
609
2020
137
21.4 J
40.7
77.3
23.4
<20.0
<20.0
4.7
<20.0
<20.0
Toluene
780
185
153
19.4
112
36.2
11.8
<5.0
<5.0
< 1.0
<5.0
<5.0
Xylenes, total
1060
470
219
131
172
422
71.3
237
< 15.0
84.7
25.2
21.1
Total VOCs Qig/L)
5369
6501
1458
704
780
3369
698
1705
842
1038
499
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W26R
W26R
W26R
W26R
W26R
W26R
W26R
Sample Date:
6/12/2013
11/21/2013
6/12/2014
11/19/2014
6/16/2015
11/17/2015
6/15/2016
Sample Code:
0
0
DB
0
0
DB
0
DB
0
DB
0
DB
List 1 VOCs (jig/L)
Acetone
<100
<20.0
<20.0
<20.0
<20.0
<40.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Benzene
56.4
26.5
24.0
35.1
10.4
8.1
13.5
13.9
5.8
5.7
7.1
6.3
1,1-Dichloroethane
<5.0
1.2
1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
16.5
2.9
2.7
2.8
1.9
<2.0
3.9
4.0
4.1
4.2
1.9
1.9
1,1-Dichloroethylene
<5.0
<1.0
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<5.0
<1.0
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<5.0
<1.0
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
36.3
3.6
3.2
1.1
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
436
115
109
208
43.4
35.3
82.8
80.7
36.4
35.8
31.2
27.2
Methyl ethyl ketone
<25.0
<5.0
<5.0
<5.0
<5.0
<10.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Tetrahydrofuran
<50.0
<10.0
<10.0
<10.0
<10.0
<20.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<500
<100
<100
<100
459
492
<100
<100
<100
<100
<100
<100
2-Butyl alcohol
<200
<40.0
<40.0
<40.0
<40.0
<80.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
<200
<40.0
<40.0
<40.0
<40.0
<80.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
<20.0
<4.0
<4.0
<4.0
<4.0
<8.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<25.0
<5.0
<5.0
<5.0
<5.0
<10.0
<20.0
<20.0
<5.0
<5.0
<5.0
<5.0
Toluene
<5.0
<1.0
<1.0
<1.0
<1.0
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
7.7 J
<3.0
<3.0
<3.0
<3.0
<6.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
553*
145
247
525
99
46
38
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
'-The June 2013 data presented in the 2013 Annual report was reported in parts per billion (ppb) instead of parts per million (ppm). The numbers have been corrected in this table.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W26R
W26R
W26R
W26R
W26R
W26R
Sample Date:
11/2/2016
6/14/2017
11/1/2017
6/22/2018
10/25/2018
6/5/2019
Sample Code:
0
DB
0
DB
0
DB
0
DB
0
DB
0
DB
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Benzene
5.0
4.1
2.8
2.9
1.2
1.1
1.5
1.6
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
1.7
1.5
1.1
1.1
1.0
1.0
1.4
1.3
1.2
1.1
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
29.5
25.5
20.5
20.5
7.0
6.4
13.6
12.9
4.4
4.3
5.1
6.0
Methyl ethyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
126
<100
<100
108
<100
<100
<100
<100
<100
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
<5.0
<5.0
<5.0
<40.0
<40.0
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<40.0
<40.0
<40.0
<40.0
<5.0
<5.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
34
87
63
16
6
6
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W26R
W26R
W26R
W26R
W26Ra
W26Ra
W26Ra
Sample Date:
10/17/2019
6/30/2020
10/25/2020
6/3/2021
11/11/2021
6/16/2022
11/1/2022
Sample Code:
0
DB
0
DB
0
DB
0
0
DB
0
DB
0
DB
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<20
<50.0
<50.0
<25.0 v1
<25.0 v1
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00 R1
<1.00 R1
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
<1.00
<1.0
<1.0
Isopropyl ether
4.2
3.9
3.9
4.0
1.8
1.7
8.0
5.6
5.8
5.65
5.98
<5.0
<5.0
Methyl ethyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<20
<10.0
<10.0
<25.0
<25.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<20
<5.00
<5.00
<25.0
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<100
<100
<100
<100
ND
ND
<5.00
<5.00
<100
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
ND
ND
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
ND
ND
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.00 LO
<5.00 LO
<5.0
<5.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<10.0
<10.0
<25.0
<25.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.00
1.23
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
ND
<3.00
<3.00
<3.0
<3.0
Total VOCs (jig/L)
4
4
2
8
6
6
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
R1 = RPD value was outside control limits.
L0 = Analyte recovery in the laboratory control sample (LCS) was outside QC limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W28
W28
W28
W28
W29
W29
W29
W30
W30
W31
W31
W31
Sample Date:
11/30/2010
11/19/2014
11/1/2017
10/25/2020
12/7/2010
11/2/2017
10/25/2020
11/1/2016
10/16/2019
11/7/2006
11/27/2007
12/2/2009
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
< 10.0
<20.0
<20.0
<20.0
< 1000
51900
42800
<20.0
<20.0
<5.0 J
<5.0
< 10.0
Benzene
< 1.0
<1.0
<1.0
<1.0
1420
1600
3670
<1.0
<1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
172
205
234
1.3
1.2
< 1.0
< 1.0
< 1.0
1,2-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
993
312
420
<1.0
<1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethylene
< 1.0
<1.0
<1.0
<1.0
< 100
<1.0
<100
<1.0
<1.0
< 1.0
< 1.0
<1.0
1,2-Dichloroethylene, cis
< 1.0
<1.0
<1.0
<1.0
497
649
360
<1.0
<1.0
< 1.0
< 1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
< 100
3.8
<100
<1.0
<1.0
< 1.0
< 1.0
< 1.0
Ethyl benzene
< 1.0
<1.0
<1.0
<1.0
162
262
847
<1.0
<1.0
< 1.0
< 1.0
< 1.0
Isopropyl ether
<4.0
2.5
23.5
6.9
13100
14200
17300
8.0
12.0
< 1.0
<5.0
<4.0
Methyl ethyl ketone
<4.0
<5.0
<5.0
<5.0
528
45800
52800
<5.0
<5.0
<5.0 J
<5.0
<4.0
Tetrahydrofuran
< 10.0
<10.0
<10.0
<10.0
< 1000
66.7
<1000
<10.0
<10.0
< 10.0
< 10.0
< 10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
< 100
<100
<100
<100
<10000
5810
14900
<100
<100
< 30.0 J
<30.0
<40.0
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<4000
<40.0
13500
<40.0
<40.0
<30.0
<30.0
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<4000
2370
5650
<40.0
<40.0
< 30.0 J
<30.0
<40.0
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<400
32.4
<400
<4.0
<4.0
< 1.0
<4.0
<4.0
Methyl isobutyl ketone
<4.0
<5.0
<5.0
<5.0
1200
23000
30000
<5.0
<5.0
<5.0
<5.0
<4.0
Toluene
< 1.0
<1.0
<1.0
<1.0
750
11000
33900
<1.0
<1.0
< 1.0
< 1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
313
965
3330
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
ND
3
24
7
19135
158176
219711
9
13
ND
ND
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W31
W31
W31
W31
W31
W31
W31
W31
W31
W31a
W31a
W32
Sample Date:
11/30/2010
11/29/2011
11/19/2014
11/19/2015
11/1/2016
11/1/2017
10/25/2018
10/16/2019
10/21/2020
10/12/2021
11/1/2022
11/20/2008
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
< 10.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<25.0
15.8 J
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
141
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
1,2-Dichloroethylene, trans
<1.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
114
Isopropyl ether
<4.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
ND
<5.0 v1
2450
Methyl ethyl ketone
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<25.0
<4.0
Tetrahydrofuran
< 10.0
< 10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<25.0
< 10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
< 100
< 100
<100
<100
<100
<100
<100
<100
<100
ND
<100
125
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
<40.0
<40.0
ND
ND
<40.0
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<4.0
Methyl isobutyl ketone
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<40.0
<5.0
<5.0
<5.0
<25.0
<4.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
6.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
<3.0
341
Total VOCs Qig/L)
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
3193
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W32
W32
W32
W32
W32a
W33
W33
W33
W33
W33
W33
W33
W33b
Sample Date:
12/1/2011
11/15/2012
11/19/2015
10/25/2018
10/12/2021
11/10/2006
11/20/2008
12/7/2010
11/23/2013
11/19/2015
11/1/2017
10/15/2019
10/21/2021
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
< 1250
<25.0
<20.0
<400
<20
< 50.0 J
80.6 J
<2000
<20.0
<20.0
<500
<400
<1000
Benzene
307
294
212
236
240
1100
1360
2360
25.7
295
219
435
224
1,1-Dichloroethane
<50.0
<1.0
<1.0
<20.0
<1.0
< 10.0
< 1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
1,2-Dichloroethane
<50.0
<1.0
<1.0
<20.0
<1.0
< 10.0
< 1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
1,1-Dichloroethylene
<50.0
<1.0
<1.0
<20.0
<1.0
< 10.0
< 1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
1,2-Dichloroethylene, cis
<50.0
<1.0
<1.0
<20.0
<1.0
< 10.0
< 1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
1,2-Dichloroethylene, trans
<200
<1.0
<1.0
<20.0
<1.0
< 10.0
< 1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
Ethyl benzene
159
104
144
149
83
302
163
<200
2.7
1.8
<25.0
<20.0
<40.0
Isopropyl ether
6510
6280
2130
2770
3700
17000
23200
19100
3550
2860
2280
2720
3190
Methyl ethyl ketone
<200
<4.0
<5.0
<100
<20
< 50.0 J
18.3
<800
<5.0
<5.0
<125
<100
<1000
Tetrahydrofuran
<500
<10.0
<10.0
<200
<20
816
799
<2000
199
101
<250
<200
<1000
List 2 VOCs (jig/L)
Isopropyl alcohol
<5000
<100
<100
<2000
ND
<300 J
75.9
< 20000
<100
<100
<2500
<2000
<4000
2-Butyl alcohol
<2000
<40.0
<40.0
<800
ND
<300
<40.0
<8000
<40.0
<40.0
<1000
<800
ND
4-Methyl-2-pentanol
<2000
<40.0
<40.0
<100
ND
<300 J
<40.0
<8000
<40.0
<40.0
<1000
<800
ND
Methylene chloride
<200
<4.0
<4.0
<80.0
<5.0
< 10.0
4.1
<800
<4.0
<4.0
<100
<80.0
<200
Methyl isobutyl ketone
<200
<4.0
<5.0
<800
<5.0
<50.0
<4.0
<800
<5.0
<5.0
<125
<100
<1000
Toluene
<50.0
19.0
21.3
<20.0
9.8
< 10.0
<1.0
<200
<1.0
<1.0
<25.0
<20.0
<40.0
Xylenes, total
453
331
536
554
218
1870
1630
2570
7.4
<3.0
<75.0
<60.0
<120
Total VOCs Qig/L)
7429
7028
3043
3709
4251
21088
27331
24030
3785
3258
2499
3155
3414
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether, 2-Propanol, sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W205
W205
W205
W205
W205
W205a
W215
W215
W215
Sample Date:
11/20/2008
11/30/2011
11/13/2012
11/19/2015
10/24/2018
11/11/2021
11/7/2006
11/27/2007
11/18/2008
Sample Code:
0
0
0
DB
0
0
0
0
DB
0
DB
0
List 1 VOCs (jig/L)
Acetone
< 10.0
<25.0
<25.0
<25.0
<20.0
<20.0
<20
<5.0 J
<5.0 J
<5.0
<5.0
< 10.0
Benzene
3.0
< 1.0
3.7
3.8
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethane
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethane
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethylene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethylene, cis
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethylene, trans
< 1.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Ethyl benzene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Isopropyl ether
177
31.5
74.6
74.6
11.8
28.4
72
< 1.0
<1.0
<5.0
<5.0
<4.0
Methyl ethyl ketone
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<20
<5.0 J
<5.0 J
<5.0
<5.0
<4.0
Tetrahydrofuran
< 10.0
< 10.0
<10.0
<10.0
<10.0
<10.0
<20
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<40.0
< 100
<100
<100
<100
<100
ND
< 30.0 J
< 30.0 J
<30.0
<30.0
<40.0
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
<30.0
<30.0
<30.0
<30.0
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
ND
< 30.0 J
< 30.0 J
<30.0
<30.0
<40.0
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
< 1.0
< 1.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<4.0
<4.0
<4.0
<4.0
<5.0
<40.0
<5.0
<5.0
<5.0
<5.0
<5.0
<4.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
180
32
78
12
28
72
ND
ND
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether, 2-Propanol, sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W215
W215
W215
W215
W215
W215
W215
W215
W215
W215
W215
Sample Date:
12/2/2009
11/30/2010
11/29/2011
11/13/2012
11/23/2013
11/19/2014
11/18/2015
11/2/2016
11/1/2017
10/24/2018
10/15/2019
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
< 10.0
< 10.0
<25.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
Benzene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
< 1.0
<1.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
<4.0
<4.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
4.2
Methyl ethyl ketone
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<40.0
< 100
< 100
<100
<100
<100
<100
<100
<100
<100
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
<40.0
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<40.0
<5.0
Toluene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
4
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-3 (cont'd)
Groundwater Quality Data - 2006-2022
Water Table Monitoring Wells (Upper Alluvial Unit)
Abresch Site
Sample Location:
W215
W215a
W215a
Sample Date:
10/22/2020
10/12/2021
11/2/2022
Sample Code:
0
DB
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20
<25.0
Benzene
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
<1.0
<1.0
ND
<5.0 v1
Methyl ethyl ketone
<5.0
<5.0
<20
<25.0
Tetrahydrofuran
<10.0
<10.0
<20
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
ND
<100
2-Butyl alcohol
<40.0
<40.0
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
ND
ND
Methylene chloride
<4.0
<4.0
<5.0
<5.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<25.0
Toluene
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
ND
<3.0
Total VOCs (jig/L)
ND
ND
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05a(D3)
-------
Table D-4
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2003
W2003
W2003
W2003
W2003
W2003
W2003
W2003
Sample Date:
11/8/2006
11/28/2007
11/18/2008
12/3/2009
12/1/2010
11/30/2011
11/13/2012
11/22/2013
Sample Code:
0
DB
0
DB
0
DB
0
DB
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
<5.0 J
<5.0
<5.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<25.0
<25.0
<20.0
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethane
< 1.0
1.8
1.2
1.3
1.1
1.2
<1.0
1.0
< 1.0
1.1
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<4.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
2.7 J
58.2 J
44.3
45.8
57.5
53.2
57.7
63.3
76.9
137
58.9
53.0
Methyl ethyl ketone
<5.0 J
<5.0 J
<5.0
<5.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
< 30.0 J
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
< 100
< 100
<100
<100
2-Butyl alcohol
<30.0
<30.0
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
< 30.0 J
< 30.0 J
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
<1.0
<1.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<5.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
Toluene
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
31
46
57
61
77
138
59
53
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2003
W2003
W2003
W2003
W2003
W2003
W2003
W2003a
W2003a
Sample Date:
11/18/2014
11/18/2015
11/1/2016
10/31/2017
10/24/2018
10/16/2019
10/21/2020
10/12/2021
10/31/2022
Sample Code:
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<50.0
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
Isopropyl ether
59.0
47.6
88.4
91.1
111
148
205
570
181 v1
Methyl ethyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<50.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<50.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<100
<100
<100
<100
ND
<200
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<5.0
<40.0
<40.0
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<10.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<5.0
<40.0
<5.0
<5.0
<5.0
<50.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
<6.0
Total VOCs (jig/L)
59
48
88
91
111
148
205
570
181
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2005
W2005
W2005
W2005
W2005
W2005
W2005
W2005a
Sample Date:
11/9/2006
11/19/2008
12/3/2010
11/23/2013
11/19/2015
11/1/2017
10/15/2019
10/12/2021
Sample Code:
0
0
DB
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
< 10.0
< 10.0
< 10.0
<20.0
<20.0
<100
<40.0
<20
Benzene
< 1.0
<1.0
< 1.0
<1.0
<1.0
<1.0
<5.0
<2.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
<2.0
<1.0
1,2-Dichloroethane
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
1,1-Dichloroethylene
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
1,2-Dichloroethylene, cis
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
1,2-Dichloroethylene, trans
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
Ethyl benzene
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
Isopropyl ether
823
835
830
530
376
353
320
320
660
Methyl ethyl ketone
<5.0 J
<4.0
<4.0
<4.0
<5.0
<5.0
<25.0
<10.0
<20
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
<50.0
<20.0
<20
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
<40.0
<40.0
< 100
<100
<100
<500
<200
ND
2-Butyl alcohol
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<200
<80.0
ND
4-Methyl-2-pentanol
< 30.0 J
<40.0
<40.0
<40.0
<40.0
<40.0
<200
<80.0
ND
Methylene chloride
<1.0
<4.0
<4.0
<4.0
<4.0
<4.0
<20.0
<8.0
<5.0
Methyl isobutyl ketone
<5.0
<4.0
<4.0
<4.0
<5.0
<5.0
<25.0
<10.0
<5.0
Toluene
<1.0
< 1.0
<1.0
< 1.0
<1.0
<1.0
<5.0
<2.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<15.0
<6.0
ND
Total VOCs Qig/L)
823
833
530
376
353
320
320
660
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2007
W2007
W2007
W2007
W2007
W2007
Sample Date:
11/19/2008
11/30/2011
11/15/2012
11/19/2015
10/26/2018
10/20/2021
Sample Code:
0
0
DB
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<50.0
<25.0
<25.0
<25.0
<20.0
<100
<3120
Benzene
5.5
1.9
2.3
11.4
10
<5.0
<125
1,1-Dichloroethane
<5.0
< 1.0
<1.0
1.4
1.2
<5.0
<125
1,2-Dichloroethane
<5.0
1.1
<1.0
1.9
1.5
<5.0
<125
1,1-Dichloroethylene
<5.0
< 1.0
<1.0
<1.0
<1.0
<5.0
<125
1,2-Dichloroethylene, cis
<5.0
1.2
1.5
4.7
3.7
<5.0
<125
1,2-Dichloroethylene, trans
<5.0
<4.0
<4.0
<1.0
<1.0
<5.0
<125
Ethyl benzene
15.0
6.7
6.6
56.0
51.2
23.5
<125
Isopropyl ether
429
580
604
964
938
1150
9720
Methyl ethyl ketone
<20.0
<4.0
<4.0
<4.0
<5.0
<25.0
<3120
Tetrahydrofuran
<50.0
39.1
41.5
35.3
52.2
69.9
<3120
List 2 VOCs (jig/L)
Isopropyl alcohol
<200
< 100
< 100
<100
<100
<500
<12500
2-Butyl alcohol
<200
<40.0
<40.0
<40.0
<40.0
<200
ND
4-Methyl-2-pentanol
<200
<40.0
<40.0
<40.0
<40.0
<25.0
ND
Methylene chloride
<20.0
<4.0
<4.0
<4.0
<4.0
<20.0
<625
Methyl isobutyl ketone
<20.0
<4.0
<4.0
<4.0
<5.0
<200
<3120
Toluene
<5.0
< 1.0
<1.0
10.7
5.2
<5.0
<125
Xylenes, total
26.0
16.8
16.0
104
94.7
46.3
<375
Total VOCs Qig/L)
476
659
1189
1158
1290
9720
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2008
W2008
W2008
W2008
W2008
W2008
W2008
W2008
W2008
Sample Date:
11/8/2006
11/27/2007
11/18/2008
12/3/2009
12/1/2010
11/30/2011
11/13/2012
11/23/2013
11/18/2014
Sample Code:
0
0
0
0
0
DB
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
<5.0
< 10.0
< 10.0
< 10.0
< 10.0
<25.0
<25.0
<20.0
<20.0
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<4.0
<1.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
<1.0
102
103
115
93.8
91.0
106
98.0
10.7
68.6
Methyl ethyl ketone
<5.0 J
<5.0
<4.0
<4.0
<4.0
<4.0
< 4.0
<4.0
<5.0
<5.0
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
< 30.0
<40.0
<40.0
< 100
< 100
< 100
<100
<100
<100
2-Butyl alcohol
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
< 40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
< 30.0 J
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
<1.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<5.0
<5.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
ND
102
103
115
92
106
98
11
69
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2008
W2008
W2008
W2008
W2008
W2008
W2008a
W2008a
Sample Date:
11/19/2015
11/1/2016
11/1/2017
10/25/2018
10/16/2019
10/21/2020
10/12/2021
10/31/2022
Sample Code:
0
0
0
0
0
0
0
0
DB
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<25.0
<125
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
Isopropyl ether
36.7
47.9
44.5
33.2
48.8
52.6
180
192 v1
607 v1
Methyl ethyl ketone
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<25.0
<125
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<25.0
<125
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<100
<100
<100
ND
<100
<500
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<5.0
<40.0
<40.0
ND
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<25.0
Methyl isobutyl ketone
<5.0
<5.0
<5.0
<40.0
<5.0
<5.0
<5.0
<25.0
<125
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<5.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
<3.0
<15.0
Total VOCs (jig/L)
37
48
45
33
49
53
180
400
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2009
W2009
W2009
W2009
W2009
W2009
W2009
W2009a
Sample Date:
11/8/2006
11/19/2008
12/1/2010
11/23/2013
11/19/2015
11/1/2017
10/15/2019
10/21/2021
Sample Code:
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
< 10.0
< 10.0
<20.0
<20.0
<20.0
<20.0
<25.0
Benzene
1.7
1.6
1.2
1.6
1.5
1.3
1.1
1.2
1,1-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
109
87.7
249
107
118
96.7
156
99.1
Methyl ethyl ketone
<5.0 J
<4.0
23.6
7.5
9.4
<5.0
<5.0
<25.0
Tetrahydrofuran
< 10.0
< 10.0
11.4
<10.0
<10.0
<10.0
<10.0
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
478 J
<40.0
< 100
<100
<100
<100
<100
<100
2-Butyl alcohol
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
4-Methyl-2-pentanol
< 30.0 J
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
Methylene chloride
< 1.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
Methyl isobutyl ketone
<5.0
<4.0
21.9
<5.0
6.4
<5.0
<5.0
<25.0
Toluene
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs Qig/L)
589
89
307
116
135
98
157
100
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0= Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2010
W2010
W2010
W2010
W2010
W2010
W2010
W2010a
Sample Date:
11/7/2006
11/19/2008
11/30/2010
11/22/2013
11/18/2015
11/1/2017
10/15/2019
10/12/2021
Sample Code:
0
0
DB
0
DB
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
< 10.0
< 10.0
< 10.0
< 10.0
<20.0
<20.0
<20.0
<20.0
<20
Benzene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
167
4.6
4.4
6.2
6.7
9.1
14.7
24.8
67.4
220
Methyl ethyl ketone
<5.0 J
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<20
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
<10.0
<10.0
<20
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
<40.0
<40.0
< 100
< 100
<100
<100
137
<100
ND
2-Butyl alcohol
<30.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
4-Methyl-2-pentanol
< 30.0 J
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
ND
Methylene chloride
< 1.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
Methyl isobutyl ketone
<5.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
ND
Total VOCs Qig/L)
167
5
7
9
15
162
67
220
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether, 2-Propanol, sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-4 (cont'd)
Groundwater Quality Data - 2006-2022
Monitoring Wells (Lower Alluvium)
Abresch Site
Sample Location:
W2012
W2012
W2012
W2012
W2012
W2012
W2012
W2012
W2012a
Sample Date:
11/9/2006
11/19/2008
12/3/2010
11/22/2013
11/19/2015
11/1/2017
10/17/2019
10/24/2020
10/12/2021
Sample Code:
0
0
0
0
0
DB
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
< 10.0
<50.0
<20.0
<20.0
<20.0
<100
<40.0
<40.0
<20
Benzene
4.0
5.2
8.9
7.7
17.9
17.8
7.5
6.9
5.5
4.2
1,1-Dichloroethane
< 1.0
<1.0
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
1,2-Dichloroethane
< 1.0
<1.0
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
1,1-Dichloroethylene
< 1.0
<1.0
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
1,2-Dichloroethylene, cis
< 1.0
<1.0
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
1,2-Dichloroethylene, trans
< 1.0
<1.0
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
Ethyl benzene
< 1.0
33.9
34.9
3.4
9.8
10.8
5.0
<2.0
<2.0
<1.0
Isopropyl ether
582
381
443
460
645
624
298
347
282
630
Methyl ethyl ketone
<5.0 J
<4.0
<20.0
<5.0
<5.0
<5.0
<25.0
<10.0
<10.0
<20
Tetrahydrofuran
< 10.0
< 10.0
<50.0
<10.0
<10.0
<10.0
<50.0
<20.0
<20.0
<20
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
<40.0
<500
<100
<100
<100
<500
<200
<200
ND
2-Butyl alcohol
<30.0
<40.0
< 200
<40.0
<40.0
<40.0
<200
<80.0
<80.0
ND
4-Methyl-2-pentanol
< 30.0 J
<40.0
<200
<40.0
<40.0
<40.0
<200
<80.0
<80.0
ND
Methylene chloride
< 1.0
<4.0
<20.0
<4.0
<4.0
<4.0
<20.0
<8.0
<8.0
<5.0
Methyl isobutyl ketone
<5.0
< 4.0
<20.0
<5.0
<5.0
<5.0
<25.0
<10.0
<10.0
<5.0
Toluene
<1.0
1.1
<5.0
<1.0
<1.0
<1.0
<5.0
<2.0
<2.0
<1.0
Xylenes, total
<3.0
119
248
15.3
49.2
51.2
<15.0
<6.0
<6.0
ND
Total VOCs Qig/L)
586
540
735
486
713
311
354
288
634
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether, 2-Propanol, sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-05b(D4)
-------
Table D-5
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W3
W3
W3
W3
W3
W3
W3
W3
W3
W3
W3
W3
Sample Date:
11/9/2006
11/28/2007
11/20/2008
12/7/2009
12/3/2010
11/30/2011
11/13/2012
11/21/2013
11/17/2014
11/17/2015
10/31/2016
10/31/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
<5.0
< 10.0
<50.0
<50.0
< 125
<125
<20.0
<100
<100
<40.0
<200
Benzene
10.0
8.7
8.1
<5.0
5.5
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<5.0
<5.0
<20.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
Ethyl benzene
<1.0
<1.0
<1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
Isopropyl ether
875
800
895
686
692
540
522
736
736
302
746
465
Methyl ethyl ketone
<5.0 J
<5.0
<4.0
<20.0
<20.0
<20.0
<20.0
<5.0
<25.0
<25.0
<10.0
<50.0
Tetrahydrofuran
39.1
31.7
20.3
<50.0
<50.0
<50.0
<50.0
<10.0
<50.0
<50.0
<20.0
<100
List 2 VOCs (jig/L)
Isopropyl alcohol
< 30.0 J
<30.0
<40.0
<200
<500
<500
<500
<100
7980
<500
<200
<1000
2-Butyl alcohol
<30.0
<30.0
<40.0
<200
<200
<200
<200
<40.0
<200
<200
<80.0
<400
4-Methyl-2-pentanol
< 30.0 J
<30.0
<40.0
<200
<200
<200
<200
<40.0
<200
<200
<80.0
<400
Methylene chloride
<1.0
<4.0
<4.0
<20.0
<20.0
<20.0
<20.0
<4.0
<20.0
<20.0
<8.0
<40.0
Methyl isobutyl ketone
<5.0
<5.0
<4.0
<20.0
<20.0
<20.0
<20.0
<5.0
<25.0
<25.0
<10.0
<50.0
Toluene
< 1.0
< 1.0
< 1.0
<5.0
<5.0
<5.0
<5.0
<1.0
<5.0
<5.0
<2.0
<10.0
Xylenes, total
<3.0
<3.0
<3.0
< 15.0
< 15.0
< 15.0
<15.0
<3.0
<15.0
<15.0
<6.0
<30.0
Total VOCs Qig/L)
924
840
923
686
698
540
522
736
8716
302
746
465
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
-------
raggsg!
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W3
W3
W3
W3a
W3a
W8
W8
W8
W8
W8
W8
Sample Date:
10/23/2018
10/14/2019
10/26/2020
10/12/2021
10/31/2022
11/8/2006
11/28/2007
11/18/2008
12/2/2009
12/1/2010
11/30/2011
Sample Code:
0
0
0
0
DB
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<20.0
<40.0
<20
<20
<50.0
<5.0 J
<5.0
< 10.0
< 10.0
< 10.0
<25.0
Benzene
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethane
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethane
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,1-Dichloroethylene
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<4.0
Ethyl benzene
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Isopropyl ether
131
556
356
630
640
288 v1
68.7
58.6
56.2
55.7
45.4
60.3
Methyl ethyl ketone
<5.0
<5.0
<10.0
<20
<20
<50.0
<5.0 J
<5.0
<4.0
<4.0
<4.0
<4.0
Tetrahydrofuran
<10.0
<10.0
<20.0
<20
<20
<50.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<200
ND
ND
<200
< 30.0 J
<30.0
<40.0
<40.0
< 100
< 100
2-Butyl alcohol
<40.0
<40.0
<80.0
ND
ND
ND
<30.0
<30.0
<40.0
<40.0
<40.0
<40.0
4-Methyl-2-pentanol
<5.0
<40.0
<80.0
ND
ND
ND
< 30.0 J
<30.0
<40.0
<40.0
<40.0
<40.0
Methylene chloride
<4.0
<4.0
<8.0
<5.0
<5.0
<10.0
< 1.0
<4.0
<4.0
<4.0
<4.0
<4.0
Methyl isobutyl ketone
<40.0
<5.0
<10.0
<5.0
<5.0
<50.0
<5.0
<5.0
<4.0
<4.0
<4.0
<4.0
Toluene
<1.0
<1.0
<2.0
<1.0
<1.0
<2.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
Xylenes, total
<3.0
<3.0
<6.0
ND
ND
<6.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
Total VOCs (jig/L)
131
556
356
635
288
69
59
56
56
45
60
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
raggsg!
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W8
W8
W8
W8
W8
W8
W8
W8
W8
W8a
W8a
Sample Date:
11/13/2012
11/20/2013
11/17/2014
11/17/2015
10/31/2016
10/31/2017
10/23/2018
10/16/2019
10/26/2020
10/20/2021
11/1/2022
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<40.0
<40.0
<100
<25.0
Benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
Isopropyl ether
89.8
48.8
127
171
145
28.8
295
174
150
162
14.2 v1
Methyl ethyl ketone
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<10.0
<10.0
<100
<25.0
Tetrahydrofuran
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20.0
<20.0
<100
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
<100
<100
<100
<100
<100
106
<100
<200
<200
<400
<100
2-Butyl alcohol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<80.0
<80.0
ND
ND
4-Methyl-2-pentanol
<40.0
<40.0
<40.0
<40.0
<40.0
<40.0
<5.0
<80.0
<80.0
ND
ND
Methylene chloride
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<8.0
<8.0
<20.0
<5.0
Methyl isobutyl ketone
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
<40.0
<10.0
<10.0
<100
<25.0
Toluene
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<2.0
<2.0
<4.0
<1.0
Xylenes, total
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<3.0
<6.0
<6.0
<12.0
<3.0
Total VOCs (jig/L)
90
49
127
171
145
135
295
174
150
162
14
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = sec-Butyl alcohol and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W80
W80
W80
W80
W80
W80
W80
W80
W80
W80
W80
W80
Sample Date:
11/7/2006
11/28/2007
11/18/2008
12/2/2009
11/30/2010
11/29/2011
11/15/2012
11/22/2013
11/20/2014
11/19/2015
11/2/2016
11/2/2017
Sample Code:
0
0
0
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<5.0 J
<5.0
< 10.0
< 10.0
< 10.0
<25.0
<25.0
<20.0
<20.0
<20.0
<20.0
<20.0
Benzene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
< 1.0
< 1.0
<1.0
<1.0
<1.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
< 1.0
< 1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
9.4
11.4
<4.0
<4.0
<4.0
<4.0
<4.0
<1.0
<1.0
<1.0
<1.0
<1.0
Methyl ethyl ketone
<5.0 J
<5.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
<5.0
<5.0
<5.0
<5.0
Tetrahydrofuran
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
-
-
-
-
-
-
-
-
-
-
...
...
2-Butyl alcohol
-
-
-
-
-
-
-
-
-
-
...
...
4-Methyl-2-pentanol
-
-
-
-
-
-
-
-
-
-
...
...
Methylene chloride
-
-
-
-
-
-
-
-
-
-
...
...
Methyl isobutyl ketone
-
-
-
-
-
-
-
-
-
-
...
...
Toluene
-
-
-
-
-
-
-
-
-
-
...
...
Xylenes, total
-
-
-
-
-
-
-
-
-
-
...
...
Total VOCs Qig/L)
9
11
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
- = Analysis not performed.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
raggsg!
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W80
W80a
W80
W6102
W6102
W6102
W6102
W6102
W6102
W6102
W6102
Sample Date:
10/26/2020
10/13/2021
11/11/2022
11/8/2006
11/28/2007
11/18/2008
12/7/2009
12/3/2010
11/29/2011
11/13/2012
11/22/2013
Sample Code:
0
0
0
0
0
0
0
0
0
DB
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<20
<50.0
<5.0 J
<5.0
< 10.0
< 10.0
< 10.0
<25.0
<25.0
<25.0
<20.0
Benzene
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,1-Dichloroethane
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethane
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,1-Dichloroethylene
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<4.0
<4.0
<1.0
<1.0
Ethyl benzene
<1.0
<1.0
<1.00
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
< 1.0
<1.0
<1.0
Isopropyl ether
<1.0
ND
<1.00
114
161
138
147
38.2
131
134
139
153
Methyl ethyl ketone
<5.0
<20
<10.0
<5.0 J
<5.0
<4.0
<4.0
<4.0
<4.0
<4.0
<4.0
<5.0
Tetrahydrofuran
<10.0
<20
<5.00
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
< 10.0
<10.0
<10.0
List 2 VOCs (jig/L)
Isopropyl alcohol
-
-
-
-
-
-
-
-
-
-
-
-
2-Butyl alcohol
-
-
-
-
-
-
-
-
-
-
-
-
4-Methyl-2-pentanol
-
-
-
-
-
-
-
-
-
-
-
-
Methylene chloride
-
-
-
-
-
-
-
-
-
-
-
-
Methyl isobutyl ketone
-
-
-
-
-
-
-
-
-
-
-
-
Toluene
-
-
-
-
-
-
-
-
-
-
-
-
Xylenes, total
-
-
-
-
-
-
-
-
-
-
-
-
Total VOCs (jig/L)
ND
ND
ND
114
161
138
147
38
133
139
153
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether was reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
- = Analysis not performed.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
raggsg!
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W6102
W6102
W6102
W6102
W6102
W6102
W6102
W6102a
W6102a
Sample Date:
11/18/2014
11/18/2015
11/2/2016
11/2/2017
10/24/2018
10/14/2019
10/20/2020
10/11/2021
11/3/2022
Sample Code:
0
0
0
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<40.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20.0
<20
<25.0
Benzene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
132
159
149
110
69.1
50.1
99.8
230
83.1 v1
Methyl ethyl ketone
<10.0
<5.0
<5.0
<5.0
<5.0
<5.0
<5.0
<20
<25.0
Tetrahydrofuran
<20.0
<10.0
<10.0
<10.0
<10.0
<10.0
<10.0
<20
<25.0
List 2 VOCs (jig/L)
Isopropyl alcohol
-
<100
<100
<100
...
...
<100
ND
<100
2-Butyl alcohol
-
<40.0
<40.0
<40.0
...
...
<40.0
ND
ND
4-Methyl-2-pentanol
-
<40.0
<40.0
<40.0
...
...
<40.0
ND
ND
Methylene chloride
-
<4.0
<4.0
<4.0
...
...
<4.0
<5.0
<5.0
Methyl isobutyl ketone
-
<5.0
<5.0
<5.0
...
...
<5.0
<5.0
<25.0
Toluene
-
<1.0
<1.0
<1.0
...
...
<1.0
<1.0
<1.0
Xylenes, total
-
<3.0
<3.0
<3.0
...
...
<3.0
ND
<3.0
Total VOCs (jig/L)
132
159
149
110
69
50
100
230
83
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Isopropyl ether (2021 only), 2-Propanol (2021 only), sec-Butyl alcohol, and 4-Methyl-2-pentanol reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
v1 = Continuing calibration verification was above the method acceptance limit. Any detection for the analyte in the associated samples may have a high bias.
- = Analysis not performed.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
Table D-5 (cont'd)
Groundwater Quality Data - 2006-2022
Platteville Bedrock Unit Monitoring Wells
Abresch Site
Sample Location:
W6104
W6104
W6104
W6104
W6104a
W6104Ra
Sample Date:
11/19/2008
11/12/2012
11/17/2015
10/23/2018
10/11/2021
10/11/2021
Sample Code:
0
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
<20.0
<25.0
<20.0
<20.0
<20
<20
Benzene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethane
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethane
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,1-Dichloroethylene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
Ethyl benzene
<2.0
<1.0
<1.0
<1.0
<1.0
<1.0
Isopropyl ether
170
171
205
169
290
280
Methyl ethyl ketone
<8.0
<4.0
<5.0
<5.0
<20
<20
Tetrahydrofuran
<20.0
<10.0
<10.0
<10.0
<20
<20
List 2 VOCs (jig/L)
Isopropyl alcohol
-
-
<100
...
ND
ND
2-Butyl alcohol
-
-
<40.0
...
ND
ND
4-Methyl-2-pentanol
-
-
<40.0
...
ND
ND
Methylene chloride
-
-
<4.0
...
<5.0
<5.0
Methyl isobutyl ketone
-
-
<5.0
...
<5.0
<5.0
Toluene
-
-
<1.0
...
<1.0
<1.0
Xylenes, total
-
-
<3.0
...
ND
ND
Total VOCs Qig/L)
170
171
205
169
290
280
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged. Values were recalculated in 2014, by increasing the reported significant figures.
" = Diisopropyl ether, 2-Propanol, sec-Butyl alcohol, and 4-Methyl-2-pentanol were reported as Tentatively Identified Compounds (TICs) with no associated reporting limits.
- = Analysis not performed.
Append ix-D-2022_O KM N-VOC-Tables-REV2023-01-09.xlsx;
Tbl-06(D5)
-------
Table D-6
Groundwater Quality Data - 1999-2021
St. Peter Bedrock Monitoring Well
Abresch Site
Sample Location:
W6201
W6201
W6201
W6201
W6201
W6201
W6201
W6201
Sample Date:
11/29/1999
11/10/2000
11/12/2001
11/25/2002
11/7/2006
12/1/2010
11/17/2015
10/14/2019
Sample Code:
0
0
DB
0
DB
0
0
0
0
0
List 1 VOCs (jig/L)
Acetone
30
<25
<25
<25
<25
<25
<5.0 J
< 10.0
<20.0
<20.0
Benzene
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
1.6
1,1-Dichloroethane
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethane
9.9
<5
2.7 J
<4.0
<4.0
<4.0
< 1.0
< 1.0
<1.0
<1.0
1,1-Dichloroethylene
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethylene, cis
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
<1.0
1,2-Dichloroethylene, trans
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
<1.0
Ethyl benzene
<5
<5
<5
<5.0
<5.0
<5.0
< 1.0
< 1.0
<1.0
<1.0
Isopropyl ether
360
290
320
280
260
<5.0
5.5
159
118
105
Methyl ethyl ketone
<25
<25
<25
<25
<25
<25
5.0 J
<4.0
<5.0
<5.0
Tetrahydrofuran
<50
<50
<50
<50
<50
<50
< 10.0
< 10.0
<10.0
<10.0
Total VOCs Qig/L)
400
306
270
ND
6
159
118
107
H istoric data range was expanded for well W6201 since this well is only sampled once every four years since 2006.
< Detection Limit = Not Detected (ND) at or above listed detection limit.
0 = Primary Sample
DB = Duplicate Sample
J = Reported value is less than laboratory quantitation limit and is considered an estimated value.
Total VOCs: Includes J values; ND treated as 0.0; Original and duplicate results averaged.
Values were recalculated in 2014, by increasing the reported significant figures.
-------
APPENDIX E - FYR NEWSPAPER ADVERTISEMENT
27
-------
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