992956
FOURTH FIVE-YEAR REVIEW REPORT FOR
SHIAWASSEE RIVER SUPERFUND SITE
LIVINGSTON COUNTY, MICHIGAN
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Prepared by
U.S. Environmental Protection Agency
Region 5
Chicago, Illinois
7/19/2024
X Douglas Ballotti
Douglas Ballotti, Director
Superfund & Emergency Management Division
Signed by: DOUGLAS BALLOTTI
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Table of Contents
LIST OF ABBREVIATIONS & ACRONYMS 2
I. INTRODUCTION 4
FIVE-YEAR REVIEW SUMMARY FORM 6
II. RESPONSE ACTION SUMMARY 7
Basis for Taking Action 7
Response Actions 7
Status of Implementation 9
Institutional Controls 11
Systems Operations/Operation & Maintenance 14
III. PROGRESS SINCE THE LAST REVIEW 15
IV. FIVE-YEAR REVIEW PROCESS 19
Community Notification, Involvement & Site Interviews 19
Data Review 20
Site Inspection 33
V. TECHNICAL ASSESSMENT 33
QUESTION A: Is the remedy functioning as intended by the decision documents? 33
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? 34
QUESTION C: Has any other information come to light that could call into question the
protectiveness of the remedy? 35
VI. ISSUES/RECOMMENDATIONS 35
VII. PROTECTIVENESS STATEMENT 38
VIII. NEXT REVIEW 41
APPENDIX A - REFERENCES A-l
APPENDIX A - REFERENCE LIST
APPENDIX B - GENERAL SITE FIGURES
APPENDIX C - EXCERPT, FINAL ASSESSMENT REPORT
APPENDIX D - LIVINGSTONDAILY.COM NEWSPAPER ADS
APPENDIX E - EXCERPT, DRAFT 2020-2021 BASELINE SAMPLING DATA REPORT
APPENDIX F- SITE INSPECTION PHOTOS
APPENDIX G - SITE INSPECTION CHECKLIST
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LIST OF ABBREVIATIONS & ACRONYMS
Adient US LLC, former Johnson Controls Interiors LLC, a PRP
ARAR Applicable or Relevant and Appropriate Requirement
BEA Baseline Environmental Assessment
CERCLA Comprehensive Environmental Response, Compensation, and Liability Act
CD Consent Decree
CFC Cast Forge Company
CFR Code of Federal Regulations
COC Contaminant of Concern
COPC Contaminant of Potential Concern
CSM Conceptual Site Model
cy cubic yard
DCC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
EPA United States Environmental Protection Agency
ERG Environmental Research Group, Inc.
FDA Food and Drug Administration
FS Feasibility Study
FYR Five-Year Review
GSIC Groundwater/Surface Water Interface Criteria
ICs Institutional Controls
LTM Long-term Monitoring
LTMP Long-term Monitoring Plan
MDNR Michigan Department of Natural Resources
mg/kg milligrams per kilogram
MNR Monitored Natural Recovery
NCP National Oil and Hazardous Substances Pollution Contingency Plan
NPL National Priorities List
O&M Operation and Maintenance
OU Operable Unit
PCB Polychlorinated Biphenyls
PFOA Perfluoroctanoic Acid
PRP Potentially Responsible Party
RAO Remedial Action Objectives
Rl Remedial Investigation
ROD Record of Decision
RPM Remedial Project Manager
RSL Regional Screening Level
Site Shiawassee River Superfund Site
SOW Statement of Work
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SWAC
Surface Weighted Average Concentration
TAL
Target Analyte List
TBC
To be considereds
TSCA
Toxic Substances Control Act
UU/UE
Unlimited Use and Unrestricted Exposure
VOC
Volatile Organic Compounds
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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 the
Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Section 121,
consistent with the National Contingency Plan (NCP)(40 CFR Section 300.430(f)(4)(ii)), and
considering EPA policy.
This is the fourth FYR for the Shiawassee River Superfund Site ("Site"). The triggering action for this
statutory review is the August 22, 2019, signing date of the previous FYR report (EPA, 2019). 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 two operable units (OUs), and one OU will be addressed in this FYR. OU1
addresses polychlorinated biphenyls (PCBs) in the Shiawassee River sediment, floodplain soil, and
the former Cast Forge Company (CFC) soil. OU2 may address vapor intrusion and groundwater
contamination. OU2 is not addressed in this FYR because OU2 is still in the investigation stage and
does not have a Record of Decision (ROD).
The Site was bifurcated into two OUs in 2023. As referenced in the last FYR Report, in 2019, the
Michigan Department of Environment, Great Lakes, and Energy (EGLE) provided EPA with a Baseline
Environmental Assessment (BEA) report that documented the historic presence of volatile organic
compounds (VOCs) in soil and groundwater at the former CFC property (AKT Peerless Environmental
& Energy Services, 2010). The BEA report prompted a vapor intrusion and groundwater investigation
from 2021 to 2023 that confirmed the presence of VOCs above EPA Regional Screening Levels (RSLs)
in soil, groundwater, soil gas, sub-slab soil gas, and indoor air samples, as well as perfluoroctanoic
acid (PFOA) above EGLE Groundwater/Surface Water Interface Criteria (GSIC) (Tetra Tech, Inc.,
2023). The nature and extent of contamination in OU2 will be further investigated in a Remedial
Investigation (Rl)/Feasibility Study (FS) for OU2. The preliminary investigatory results related to OU2
will not be further discussed in this FYR.
The Shiawassee River Superfund Site FYR was led by Leah Werner, EPA Region 5's Remedial Project
Manager (RPM) for the Site. Participants included Charles Rodriguez and Natalie Romain, EPA
Region 5's Community Involvement Coordinators for the Site; Mary Schaefer, EGLE Project Manager
for the Site; Nicholas Shorkey, EGLE technical support; and Brad Hartwell, EPA Contractor from Tetra
Tech. Adient US LLC (Adient), the Site's potentially responsible party (PRP), and EGLE were notified
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of the initiation of the FYR (EPA, 2023a) and participated in a pre-site inspection meeting (EPA,
2023b), as well as the November 2, 2023, Site inspection. The review began on August 22, 2023.
Site Background
The Shiawassee River Superfund Site includes the former CFC property at 2440 West Highland Road,
in Howell, Livingston County, Michigan, and approximately eight miles of the Shiawassee River (i.e.,
downstream to the Steinacker Road area). The former CFC property is bordered on the north and
east by wetlands, on the west by the South Branch of the Shiawassee River, and on the south by
Highway M59. The portion of the river affected by PCB contamination begins at Highway M59 and
proceeds downstream in a northerly direction to Steinacker Road. Several areas of floodplain soil
adjacent to the affected portion of the river were contaminated by PCB-contaminated sediments
that were carried over the riverbanks during periods of high flow.
The South Branch of the Shiawassee River is located in a largely rural area and is bordered by
forested floodplains, wetlands, and light industrial areas (e.g., the former CFC property). The river
ranges from about 20- to 45-feet wide. Residences are located along the river; no PCB
contamination was found during the Rl at any of the upland soils located on the residences along
the river. There are no public beaches along the Shiawassee River, and fishing is limited at the Site
due, in part, to the lack of significant game fish. The Shiawassee River is not used as a public water
supply. Local residents use private groundwater wells for potable water. Canoes and kayaks at
residences along downstream portions of the Site during the Site inspection suggest recreational
boating may take place in the South Branch of the Shiawassee River.
The Site was placed on the National Priorities List (NPL) in 1983 (EPA, 1983).
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FIVE-YEAR REVIEW SUMMARY FORM
SITE IDENTIFICATION
Site Name:
Shiawassee River
EPA ID:
MID980794473
Region: 5
State: Ml
City/County: Howell/Livingston
NPL Status: Final
Multiple OUs?
Yes
Has the site achieved construction completion?
Yes
Lead agency: EPA
Author name (Federal or State Project Manager): Leah Werner
Author affiliation: EPA
Review period: 8/22/2023 - 4/16/2024
Date of site inspection: 11/2/2023
Type of review: Statutory
Review number: 4
Triggering action date: 8/22/2019
Due date (five years after triggering action date): 8/22/2024
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II. RESPONSE ACTION SUMMARY
Basis for Taking Action
PCBs in soils and sediments are the contaminants of concern for OU1.
The 1992 Rl Report identified several areas on the former CFC property that were historically
associated with various waste handling and disposal processes. These areas include: an initial
unlined lagoon; a former settling tank and discharge pipe; a former lined lagoon, overflow ditch, and
overflow lagoon; and a former discharge area (Warzyn Inc., 1992). Some of the areas previously
associated with waste disposal (i.e., the former lined lagoon, former overflow ditch, former
discharge area, and the flatlands) were at least partially remediated in 1981 due to the State of
Michigan filing a Consent Judgement with CFC (Environmental Research Group, Inc., 1982). The
1992 Rl Report indicates that PCB-contaminated soil remained in place in portions of the former CFC
property that were not addressed in the prior remedial action (Warzyn Inc., 1992).
A risk assessment completed as part of the RI/FS found human health cancer risks exceeding
1 x 10"4, as well as non-cancer risks exceeding a hazard index of 1 (Pace Incorporated, Warzyn Inc.,
1992). Nearby residents are at greatest potential risk. The majority of cancer risk for nearby
residents is associated with consumption of contaminated fish from the river. Another pathway of
concern is dermal contact with floodplain sediment and inhalation from dust and/or volatilized
PCBs. There are also potential risks to ecological receptors (e.g., mink, kingfisher) through dietary
consumption of contaminated fish.
Response Actions
Pre-ROD Response Actions
In October 1977, CFC installed a wastewater treatment system at the CFC property and occupants
began treating and/or transporting wastewater for off-site disposal (AKT Peerless Environmental &
Energy Services, 2010).
On June 19,1981, the Michigan Attorney General executed a Consent Judgment with CFC that had
been under negotiation since 1977 (Frank J. Kelly, et al. v. Cast Forge Incorporated, 1981). The
judgment directed that CFC undertake the following actions at the plant and in the river:
Re-route the existing storm drain north of the plant building;
Install soil erosion protection (a berm);
Remove PCB-contaminated muck from the discharge area west of the plant and from the
river;
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Remove the lined lagoon, including standing water, sediments, and the plastic liner;
Remove contaminated soil from the flatlands area;
Properly transport and dispose of all contaminated material at an off-site facility; and
Pay to the State of Michigan $700,000 in natural resource damages and $50,000 to
reimburse the State for costs incurred in cleanup actions in the river.
The overflow lagoon and spillway were removed prior to issuance of the Consent Judgment.
A-l Disposal of Plainwell, Michigan was contracted to undertake the cleanup of the plant site during
July and August of 1981, under MDNR oversight. A second cleanup contract was awarded to A-l
Disposal in January 1982 to address the discharge area west of the plant and the river. The goal of
this project was to reduce the concentration of PCB contamination in stream sediments for a
distance of approximately eight miles downstream of CFC. A backhoe was used to remove PCB-
contaminated material from around the discharge area and a dragline was used to remove
contaminated sediments from an area in the river near Bowen Road. Vacuum extraction was also
used to remove the PCB-contaminated sediments from the river. As most of the PCBs were
determined to be tied up in organic material in the river, the vacuum action focused on removing
the organic material without taking in the surrounding sand and gravel. This sediment removal took
place primarily in the section of the river between the CFC facility and Bowen Road. Solids from the
vacuum operation were removed by a filtration system, which included three filters in series. The
de-watered solids and spent carbon from the filters were then transported to a licensed landfill
permitted to take PCB-contaminated wastes of this type.
The removal effort resulted in the collection of an estimated 2,531 pounds of PCBs in 1,805 cubic
yards of river sediment and 500 cubic yards of sand and gravel used as filter media. Pursuant to the
federal PCB Spill Cleanup Policy, 40 CFR 761.60, and the Toxic Substances Control Act (TSCA), the
contaminated sediments, sand, and gravel were segregated into two fractions based on PCB
concentration. Solids with PCB concentrations of 50 mg/kg or greater (approximately 260 cubic
yards), were segregated from approximately 2,045 cubic yards of solids having lower PCB
concentrations. Materials were transported off-site for disposal. Although the sediment removal
project was intended to clean up eight river-miles, because the costs of the removal were higher
than anticipated the effort ended at the end of 1982, after extending only 1.5 miles downstream.
Record of Decision
A ROD for the site was signed by EPA in 2001 (EPA, 2001). The remedy selected and described in the
ROD required excavation and off-site disposal of PCB-contaminated soil and sediment, monitored
natural recovery (MNR) in sediment, and implementation of institutional controls (ICs). The
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remedial action objective (RAO) identified in the ROD is to protect human health and the
environment from imminent and substantial endangerment due to PCBs attributed to the Site.
The remedy described in the 2001 ROD included:
• Excavation of approximately 795 cubic yards (cy) of contaminated soil at the CFC facility
to meet a cleanup goal of 10 mg/kg.
• Excavation of approximately 1,755 cy of floodplain soils to meet a cleanup goal of 10
mg/kg.
• Excavation of approximately 1,590 cy of river sediments to meet the post-remediation
average concentrations of 5 mg/kg for the first river-mile. (Within the five-mile stretch
downstream of Highway M59, this excavation would result in an approximate average
sediment PCB concentration of 1 mg/kg immediately following the remedial action.)
• MNR of sediments along with post-remediation monitoring to ensure that MNR is
occurring to meet the long-term cleanup goal of a surface weighted average
concentration (SWAC) of 0.003 to 0.2 mg/kg over periods of up to 18 and 7 years,
respectively. The long-term cleanup goal is based on protection of ecological receptors,
i.e., mink through dietary consumption of fish.
• Excavated soil and sediment containing PCBs at concentrations of 50 mg/kg or greater
disposed of at an off-site TSCA landfill facility, and soil and sediment containing PCBs at
concentrations of less than 50 mg/kg disposed of at an off-site sanitary landfill facility.
• ICs, including ensuring the CFC facility remains zoned industrial and deed restrictions for
the CFC property.
Status of Implementation
Remedial action cleanup work (i.e., excavation and removal of soils and sediments) was
undertaken on behalf of Johnson Controls, Inc., by ENTACT and Associates, LLC from November 1,
2004 to August 15, 2005, and is summarized in the table below (EPA, 2001; ENTACT Environmental
Services, 2005; Stofferahn, 2005).
Table 1. Summary of planned and actual soil and sediment remova
Site sub-area
2001 ROD removal volume estimate (cy)
Final removal volume (cy)
CFC soils
795
154
Floodplain soils
1,755
160
River sediments
1,590
50
Total
4,140
364
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As shown in Table 1, significantly less material was removed during the remedial action than had
been estimated in the ROD. This was because sampling conducted during the design phase indicated
that smaller volumes of PCB contamination exceeding the concentrations specified in the ROD were
present at the excavation areas (ENTACT Environmental Services, 2005).The Preliminary Closeout
Report was signed on September 29, 2005 (EPA, 2005).
Sampling and analysis of floodplain soil and river sediment was conducted in 2006, 2007, and 2008.
These data and a discussion of them can be found in the 2009 FYR report (EPA, 2009). Sampling and
analysis of river sediment and surface water was conducted in 2013 and is discussed in the 2014 FYR
report (EPA, 2014). From 2020 to 2021, sampling and analysis of surface water, fish tissue, and river
sediment was also conducted to establish baseline measurements of PCBs in post-remediation site
data and provide insights relative to historic data (CTI and Associates, Inc.; Arcadis US, Inc., 2024).
Additional information is available in the Data Review section of this report. There is no ongoing
remedial action at the Site.
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Institutional Controls
Table 2: Summary of Planned and/or Implemented ICs
Media, engineered
ICs Called
Title of IC
controls, and areas that do
ICs
for in the
Impacted
IC
Instrument
not support UU/UE based
Needed
Decision
Parcel(s)
Objective
Implemented and
on current conditions
Documents
Date (or planned)
Within portion of
former CFC property
identified as
Restricted Property on
Schedule l-A, attached
to the May 19, 2010
covenant deed
transferring
ownership of parcel to
Portion of
former CFC
property,
Tax
Parcel No.
4706-27-
200-010,
Livingston
County,
Michigan
Lucy Road Resources,
LLC: property use for
industrial and light
industrial purposes
Restrictive
Soils and Groundwater
Yes
Yes
only; no removal of
concrete/asphalt
surfaces unless
promptly replaced
with similar coverings;
prohibit use of
groundwater for any
purpose; soils, media
and/or debris on
property to be
managed consistent
with Subtitle C of the
Resource
Conservation and
Recovery Act and all
other relevant state
and federal laws.
covenant filed in
Livingston
County,
Michigan, May
19, 2010.
South
Michigan
Branch of
Department of
Fish
Yes
Yes
the
Shiawassee
River to
Prevent ingestion of
PCB-contaminated
fish.
Health and
Human Services
Eat Safe Fish
beyond the
Guide. Current as
downstream
of latest edition
boundary
of fish
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consumption
advisory,
(Michigan
Department of
Health and
Human Services,
2023).
A map showing the area in which the ICs apply is included in Appendix B as Figure 2.
Status of Access Restrictions and ICs:
Former CFC facility:
The description of the selected remedy included in the ROD signed on September 28, 2001,
specified that "institutional controls will be placed on the CFC facility property to ensure that it
remains industrial" (EPA, 2001). The ROD also states that "institutional controls along with deed
restrictions will be required for the CFC facility." The ROD did not articulate any specific and
substantive terms of deed restrictions that are required at the former CFC facility to achieve RAOs.
On January 22, 2004, EPA entered into two contemporaneous consent decrees with PRPs. In one,
EPA entered into a consent decree (CD) with Johnson Controls, Inc., Hoover Universal, Inc., and
Multifastener Corporation, which stipulated that the ROD remedial work would be performed under
a separate CD and that Johnson Controls, Hoover Universal, and Multifastener Corporation would
reimburse EPA for Response Costs incurred related to the Site (United States of America v. Johnson
Controls, Inc., Hoover Universal, Inc., and Multifastener Corporation, 2004). EPA entered into a
second CD (i.e., "partial CD") with Johnson Controls to finance and perform the work outlined in the
partial CD, the ROD, the statement of work (SOW) and the Remedial Design Work Plan for
implementation of the Remedial Action and Operation and Maintenance (O&M) at the Site (United
States of America v. Johnson Controls, Inc., et al., 2004). The Partial CD required "an agreement,
enforceable by [Johnson Controls] and the United States, to refrain from using the Site, or such
other property in any manner that would interfere with or adversely affect the implementation,
integrity, or protectiveness of the remedial measures to be performed pursuant to [the Partial]
Consent Decree."
A restrictive covenant (in the form of restrictions on a covenant deed) for the former CFC property
was finalized on May 19, 2010, between the former landowner of the former CFC property, Hayes
Lemmerz International - Howell, Inc. as a Grantor, and the new property owner of the former CFC
facility, Lucy Road Resources, LLC (Spilkin, 2010). The restrictive covenant identified specific land
and water use restrictions at the former CFC property. However, the restrictive covenant has
subsequently been determined to not be legally enforceable by EPA, as discussed below.
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River:
There are current fish consumption advisories in place for the South Branch of the Shiawassee River
(Michigan Department of Health and Human Services, 2023). These advisories extend beyond the
downstream Site boundary and will be maintained until fish tissue contamination falls to a level
acceptable for human consumption.
Current Compliance:
Former CFC Facility:
The former CFC facility is in compliance with the IC requirement that the former CFC facility remain
in industrial use. The annual O&M Inspection reports from 2021, 2022, and 2023 required by the
O&M Plan for Institutional Controls, prepared by CTI and Associates, Inc. in March 2021, determined
that the former CFC property has remained zoned for industrial use and property ownership has not
changed (CTI and Associates, Inc., 2021b; CTI and Associates, Inc., 2022; CTI and Associates, Inc.,
2023).
The 2010 restrictive covenant is not an IC that EPA can enforce at the Site. The ROD states that
"institutional controls along with deed restrictions will be required for the CFC facility (EPA, 2001)."
However, the ROD did not articulate any specific land or water use restrictions required in the deed
restriction. The 2005 Partial CD documented the requirement for an agreement to refrain from
using the site in a manner that would adversely affect the remedy (United States of America v.
Johnson Controls, Inc., et al., 2004). The restrictive covenant appears to be that agreement enacted.
However, the restrictive covenant is only enforceable by Hayes Lemmerz, a former owner and
operator at the former CFC property but is not a PRP for this Site and has no responsibility to
enforce the requirements of the Partial CD (Spilkin, 2010). The restrictive covenant also includes
more specific land and water use restrictions than the selected remedy documented in the ROD. To
date, there are no IC violations.
River:
Fish consumption advisories for the river are in place and appear to be effective. As of the 2023
edition of the Michigan Department of Health and Human Services Eat Safe Fish Guide, the South
Branch of the Shiawassee River and downstream waters at least as far as the Shiawassee River itself
were included in Michigan's fish consumption advisory (Michigan Department of Health and Human
Services, 2023). The publication warns anglers not to consume fish of any species, and of any size, if
they are taken from the South Branch of the Shiawassee River. EPA does not have any information
indicating that fish consumption by humans is occurring.
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IC Follow up Actions Needed:
Pursuant to the Partial CD paragraph 24, the PRP will use best efforts to secure a deed restriction for
the portion of the former CFC property, Tax Parcel No. 4706-27-200-010 of Livingston County,
identified as the Site defined in the Partial CD, with Adient as a grantor and Lucy Road Resources,
LLC as a grantee. The deed restriction should be enforceable by the PRP and EPA. The PRP and EPA
should assess which land/water use restrictions should be included as deed restrictions to
proactively prohibit interference with the integrity or protectiveness of the remedy. Further,
additional land/water use restrictions in the form of ICs may be considered in the decision
document for OU2.
Long Term Stewardship:
Long-term protectiveness requires compliance with ICs, including fish consumption advisories and
the land use requirement of maintaining the former CFC property zoned for industrial use. The PRP
prepared an O&M Plan for ICs in March 2021 (CTI and Associates, Inc., 2021a). In accordance with
the SOW, the O&M Plan for ICs was required to monitor post-remedial ICs at the former CFC facility.
Specifically, the O&M Plan was designed to: "1) ensure that the industrial site zoning and industrial
site use restrictions remain in place; and 2) notify potential future site owners/developers/users of
residual soil impact."
This O&M Plan for ICs requires annual certifications to be submitted to EPA providing evaluations of
ICs for effectiveness and compliance. The PRP submitted Annual O&M Inspection Reports for ICs in
2021, 2022, and 2023 pursuant to this O&M Plan for ICs (CTI and Associates, Inc., 2021b; CTI and
Associates, Inc., 2022; CTI and Associates, Inc., 2023). None of the inspection reports identified any
changes to the zoning designations or property ownership.
Systems Operations/Operation & Maintenance
The PRP implemented a baseline sampling program between 2020 and 2021 that included sampling
and analysis of PCBs in fish tissue, water, and sediments at the Site (CTI and Associates, Inc.; Arcadis
US, Inc., 2024). The baseline sampling program was intended to provide recent data for evaluation
of recovery of PCB concentrations in media; provide a baseline dataset and methods to assist with
the development of a long-term monitoring plan (LTMP); compare to future long-term monitoring
(LTM) data to evaluate the ongoing status of MNR at the Site; and evaluate load gain in discrete
reaches of the stream adjacent to the former CFC facility to assess residual sources.
The 2005 Partial CD states that, consistent with the SOW, the PRP "shall continue to implement the
Remedial Action and O&M until the Performance Standards are achieved and for so long thereafter
as is otherwise required under this Partial Consent Decree" (United States of America v. Johnson
Controls, Inc., et al., 2004). Per the SOW, this O&M plan is to include a LTMP for river sediments.
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This plan is intended to provide for the collection of data necessary to evaluate when portions of the
river meet preliminary remediation goals. The PRP has not submitted an O&M plan that includes a
LTMP as required by Task 5 of the SOW in the 2005 Partial CD.
However, a draft LTMP was submitted in April 2024, outside the review period for this FYR, and will
be discussed in the next FYR. The LTMP will be the foundation of the O&M plan and should include
the requirement for natural recovery evaluations and submittal of MNR reports on a five-year basis.
Following approval of the LTMP, the O&M Plan will be prepared. Additionally, an updated
conceptual site model (CSM) should be developed that assesses potential sources, transport,
current exposure concentrations, and changes over time.
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 3: Protectiveness Determinations/Statements from the 2019 FYR
ou#
Protectiveness
Determination
Protectiveness Statement
1 and Sitewide
Not Protective
The remedy at the Shiawassee River Superfund Site is
not protective of the environment. Additional
information is needed to determine whether the
remedy is currently protective of human health. The
former CFC property is zoned for industrial use, a
restrictive covenant has been implemented, and fish
consumption advisories are in place, however the Site
inspection identified apparent noncompliance with the
requirements of the restrictive covenants, and the
changes to the Site may have resulted in redistribution
of and potentially new or different exposure routes to
PCB-contaminated wastes that had been left on-Site.
Additionally, there is no O&M plan in place and O&M,
including monitoring of the effectiveness of the MNR
remedy, has not been occurring for more than 5 years.
Ecological receptors may still be exposed to
unacceptable risks posed by PCB contamination.
The following actions need to be taken to ensure
protectiveness:
1. Develop a comprehensive long-term monitoring
plan and begin implementing it by June 30, 2020.
Include in the plan a requirement for the evaluation
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of MNR progress toward meeting the long-term
cleanup goals in the ROD.
2. Develop and implement by August 21, 2020 an
O&M plan that includes procedures for monitoring
and tracking compliance with existing ICs,
communicating with EPA, and providing an annual
certification to EPA that the ICs remain in place and
are effective.
3. By August 22, 2021, evaluate the effectiveness of
the 2010 restrictive covenants and determine
whether additional ICs are needed.
Complete an evaluation of sediment, surface water,
floodplain soils, and biota data to determine progress
toward meeting the long-term cleanup goals in the ROD
and to determine whether additional response actions
may be needed to meet cleanup goals and to ensure
protectiveness. Submit the first MNR Report by
September 30, 2021, with submittal of subsequent
reports every five years following submittal of the first
report. The MNR Reports will be based upon the results
from implementation of the long-term monitoring plan.
Table 4: Status of Recommendations from the 2019 FYR
ou#
Issue
Recommendations
Current
Status
Current Implementation Status
Description
Completion
Date (if
applicable)
1 and
Sitewide
Lack of long-term
monitoring and
process to
evaluate progress
of MNR at the
site.
#1: Develop a
comprehensive
long-term
monitoring plan
and begin
implementing by
June 30, 2020.
Include in the plan
a requirement for
the evaluation of
MNR progress
toward meeting
the long-term
cleanup goals in
the ROD.
Addressed
in Next FYR
The PRP should finalize and begin
implementing a LTMP. Include in
the plan a requirement for the
evaluation of MNR progress
toward meeting the long-term
cleanup goals in the ROD.
N/A
1 and
Sitewide
There is no O&M
plan for the Site,
and O&M
#2: PRP should
submit an O&M
plan consistent
Completed
The PRP prepared an O&M Plan
for ICs in March 2021 that
monitors post remedial ICs at the
3/1/2021
16
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procedures are
needed to ensure
that effective ICs
are monitored,
maintained and
enforced.
with Task 5 of the
SOW (as attached
to the 2002
Administrative
Order and included
by reference in the
2004 Consent
Decree). The O&M
plan should include
procedures to
monitor and track
compliance with
existing ICs,
communicate with
EPA, and provide
an annual
certification to EPA
that the ICs remain
in place and are
effective.
former CFC facility. Specifically,
the O&M Plan was designed to:
1. Ensure that the industrial
site zoning and industrial
site use restrictions
remain in place; and
2. Notify potential future
site
owners/developers/users
of residual soil impact.
The PRP has submitted Annual
O&M Inspection Reports in 2021,
2022, and 2023 pursuant to this
O&M Plan.
1 and
Sitewide
Existing 2010
restrictive
covenants are
not being
complied with
and, given recent
activities at the
former CFC
property, may no
longer address all
areas with
remaining
contamination.
#3: Evaluate the
effectiveness of
the 2010 restrictive
covenants and
determine whether
additional ICs are
needed.
Completed
The 2010 restrictive covenant is
not legally enforceable by EPA.
The PRP will use best efforts to a
secure a deed restriction for a
portion of the former CFC
property. Additional ICs may also
be evaluated as a remedy for the
OU2 decision document. Please
see additional information
below.
2/29/2024
1 and
Sitewide
A current
evaluation of the
natural recovery
processes at the
Site, including
evaluating if and
where ongoing
sources of PCB
contamination
exist and whether
MNR is occurring,
is needed. This
#4: Complete an
evaluation of
sediment, surface
water, floodplain
soils, and biota
data to determine
progress toward
meeting the long-
term cleanup goals
in the ROD and to
determine whether
Addressed
in Next FYR
The PRP conducted baseline
sampling and analysis of
sediment, surface water, and fish
tissue data between 2020 and
2021. The PRP should finalize the
first MNR Report, which should
evaluate the baseline data in the
context of historic data to
evaluate whether natural
recovery of PCBs is occurring in
site media. Subsequent MNR
reports will be based upon the
N/A
17
-------
and subsequent
evaluations will
assist EPA with
evaluating the
MNR component
of the remedy,
determining
whether
additional
response actions
are necessary to
meet the long-
term cleanup
goals specified in
the ROD, and
determining
protectiveness
for human health
and the
environment in
subsequent FYRs.
additional
response
actions may be
needed to meet
cleanup goals and
to ensure
protectiveness.
Submit the first
MNR Report by
September 30,
2021, with
submittal of
subsequent reports
every five years
following submittal
of the first report.
The MNR Reports
will be based upon
the results from
implementation of
the long-term
monitoring plan.
results from implementation of
the LTMP and should be
submitted every five years. The
MNR Reports should also
evaluate additional source input
into the system to determine if
ongoing source(s) are preventing
natural recovery of sediment
from meeting the long-term
cleanup goals, and whether
additional response actions may
be needed to meet cleanup
goals.
Recommendation #3
The 2010 restrictive covenant is not legally enforceable by EPA, as discussed in the Institutional
Controls section of this FYR Report above (Spilkin, 2010). Before this determination was made, the
2019 FYR documented apparent noncompliance with the requirements of the restrictive covenant
to maintain the existing asphalt cap (which is not a requirement in the ROD or Partial CD) (EPA,
2019). Between August 20 and December 21, 2021, EPA contractor START implemented
investigation activities to assess whether modifications to the Site since the 2010 transfer of the Site
to Lucy Road Resources, LLC have impacted historically clean portions of the site, created new
routes of exposure to PCBs, or created new conduits for releasing PCBs into the Shiawassee River
(Tetra Tech, Inc., 2023). The investigation results are discussed in more detail in the Data Review
section below, and an excerpt of the Final Assessment Report (including relevant discussion, figures,
and data tables) is available in Appendix C.
The findings of the investigation activities indicated that all soil samples were below the PCB
cleanup goal of 10 mg/kg. The data results indicate that the previous land clearing and regrading
activities documented in the 2019 FYR Report have not resulted in a direct contact risk for PCBs or
metals in shallow site soils or landscaping materials. Therefore, while the restrictive covenant is not
legally enforceable by EPA or Adient, the land disturbance activities documented in the 2019 FYR do
not appear to have interfered with or adversely affected the implementation, integrity or
18
-------
protectiveness of the remedial measures pursuant to the Partial CD. Additionally, a title search on
the former CFC property includes the 2010 restrictive covenant and potential prospective
purchasers would be informed of historic implementation of deed restrictions on the property.
Since the former CFC property is currently in compliance with the IC documented in the ROD to
retain industrial zoning of the Site, and data evaluation of upland soil does not show PCB
exceedances above the cleanup goal, there is no present need for additional ICs to be included in a
ROD Amendment or an Explanation of Significant Differences.
Pursuant to the Partial CD paragraph 24, the PRP will use best efforts to secure a deed restriction for
the portion of the former CFC property, Tax Parcel No. 4706-27-200-010 of Livingston County,
defined as the Site in the Partial CD, with Adient as a grantor and Lucy Road Resources, LLC as a
grantee. The deed restriction would be enforceable by the PRP and EPA. The PRP and EPA should
assess which land use restrictions should be included as deed restrictions to proactively prohibit
interference for the integrity or protectiveness of the remedy. Land/water use restrictions in the
form of ICs for the former CFC property may be considered in the decision document for OU2.
IV. FIVE-YEAR REVIEW PROCESS
Community Notification. Involvement & Site Interviews
A public notice was made available by in the Livingston Daily titled "EPA Begins Review of
Shiawassee River Site", on September 3, 2023, stating that there was a FYR and inviting the public to
submit any comments to EPA. The address was not listed correctly in the September 3, 2023, public
notice, and the public notice was re-posted with the corrected address in the Livingston Daily on
April 14, 2024. The public notices are available in Appendix D. No comments have been received and
no inquiries have been made regarding the FYR.
During the FYR process, interviews were conducted to document any perceived problems or
successes with the remedy, as implemented. On November 2, 2023, a representative of Lucy Road
Resources, LLC. stated that he is unaware of any changes to the former CFC property that may have
adversely impacted the remedy.
Representatives of EGLE expressed concern related to the lack of an updated CSM; the possibility
that PCB-contaminated material that remains in place in floodplain soil being a source of PCBs to the
South Branch of the Shiawassee River; comparability of the baseline sampling data to future LTM
data; and the ineffectiveness of the MNR remedy to achieve the long-term cleanup goals of the
2001 ROD. Additional concerns and issues expressed by EGLE regarding the current status and
progress of the Site remedy are included in a letter to EPA dated August 22, 2023, and May 15, 2024
(EGLE, 2023; EGLE, 2024).
19
-------
Data Review
PCB BASELINE SAMPLING FOR LONG-TERM MONITORING
As noted in the "Response Actions" section of this FYR, the long-term goal of the sediment
remediation is to achieve SWACs between 0.003 and 0.2 mg/kg over a period of up to 18 years, or
by 2023. This target was believed to be sufficient to be protective of mink through dietary
consumption of fish or other ecological receptors. In addition, the ROD indicated that attaining
these levels that were believed to be protective of ecological receptors would eliminate the need for
fish consumption advisories for recreational fishing. The excavation of PCB-contaminated soil at the
former CFC facility and on the river floodplain, as well as contaminated sediment in the Shiawassee
River was meant to reduce the potential risk caused by exposure of PCBs via direct contact with,
ingestion of, or inhalation of contaminated soil and sediment, as well as reduce the risk to wildlife of
exposure to PCBs by removing a large mass of PCBs from the environment.
Between September 2020 and August 2021, a baseline monitoring program of PCB concentrations in
surface sediment, fish tissue, and surface water was conducted by the PRP at the Site between
Michigan State Highway (M-59) and Steinacker Road and upstream of M-59 (i.e., the upstream
area). Sampling was conducted in accordance with the 2020 LTMP Baseline Sampling Event Field
Sampling Plan, prepared by CTI Associates, Inc. and Arcadis on October 1, 2020 (CTI and Associates,
Inc., and Arcadis, 2020). The objective of the baseline monitoring program was to evaluate post-
remediation data in the context of the historical data. These data also assist in the development of a
LTMP, support evaluation of MNR at the Site, and will be used to determine if the long-term cleanup
goals established in the ROD are being met. The baseline data sampling effort and analysis is
reported in the draft 2020-2021 Baseline Sampling Data Report dated February 2024 (CTI and
Associates, Inc.; Arcadis US, Inc., 2024). A final copy of this report is anticipated in 2024. For more
detailed information on the baseline data collection effort (including discussion, figures, and data
tables), see the excerpt from the draft report in Appendix E. Data interpretation by media is
discussed the next few subsections.
Results from the 2020 to 2021 baseline sampling effort are compared to historic sampling programs.
An overview of the historic sampling programs is provided in Table 5. Interpretation of historical
data prior to 2020 is limited to overview comments and general trend observations. A more robust
interpretation of data is required in the MNR Report.
Table 5: Summary of Historical and Baseline Datasets
Sampled Media
Historical
Baseline
Sampling Period
Sample Count
Sampling Year
Sample Count
1980
1980 to 2013
553
2021
486
1981
1982 to 2013
50
2020
24
1982
1981 to 2014
108
2021
55
20
-------
Referenced: (CTI and Associates, Inc., 2014; CTI and Associates, Inc., 2015; CTI and Associates, Inc. and Aracdis US, Inc., 2024; ENTACT
Environmental Services, 2003; ENTACT Environmental Services, 2006; ENTACT Environmental Services, 2010; Gannett Fleming of
Michigan, Inc., 2008; Malcolm Pirnie Engineers, 1995; Malcolm Pirnie Engineers, 1997; Rice, White, Simmons, & Rossmann, 1984;
Tetra Tech EM Inc., 2001; Warzyn Inc., 1992)
Surface Sediment Sampling
Baseline sediment sample collection was performed between July 12 and August 27, 2021. Sediment
cores were collected from approximately 30 evenly spaced transects per mile (240 transects total),
resulting in approximately 486 composite sediment samples. Each sediment transect sample was
composed of five subsamples spaced evenly across the stream channel, combined into one
composite sample each for the 0- to 2-inch and 2- to 6-inch intervals. The 0- to 2-inch interval was
selected to determine the PCB concentrations in the surface sediment interval tied most closely to
fish tissue concentrations, and the 2- to 6-inch interval was selected to support comparison to prior
samples collected at the Site via 0- to 6-inch length-weighted comparisons. The results of the SWAC
concentrations for the 0- to 2-inch interval and the 0- to 6-inch interval are shown below in Figure 1
and Figure 2, respectively. Reference Appendix E for supporting figures of the baseline sampling
effort.
Average baseline surface sediment (0- to 2-inch) total PCB Aroclor concentrations were less than 1
milligram per kilogram (mg/kg), with 13 of 239 (5 percent [%]) of surface samples greater than 1
mg/kg (see Figure 1 below). Total PCB Aroclor SWACs in surface sediment were below 1 mg/kg
across the entire baseline sampling area, ranging from 0.37 to 0.55 mg/kg in individual reaches
(excluding the upstream area). The surface and subsurface sampling intervals were length-weighted
to provide a singular representative result for comparison to the historical 0- to 6-inch subsurface
sampling interval (see Figure 2). In the length-weighted 0- to 6-inch interval, the total PCB SWAC is
notably higher between the M-59 bridge and Bowen Road bridge (1.05 mg/kg), which may be
attributed to a maximum total PCB concentration (22 mg/kg) measured in the 2- to 6-inch
subsurface interval within this area. The total PCB SWAC concentrations in the 0- to 6-inch interval
were lower downstream from the former CFC facility.
21
-------
Figure 1: Surface Sediment (0-2 in) SWAC Concentration Total PCBs
6.0 i
5.5
5.0
4.5
_ 4.0
o>
g 3.5
t r>
cd 3.0 -
0
01
S 25
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h—
2.0-
1.5-
1.0-
0.5
0.0
SWAC = 0.367 (mi
1
i
it
SWAC = 0.372 (mg/kg)
SWAC = 0.551 (mg/kg)
Ml
SWAC = 0.537 (mg/k
0
oooooooooooooooooooooooooooooooooo
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Distance (ft)
Referenced: (CTI and Associates, Inc.; Arcadis US, Inc., 2024)
Figure 2: Surface Sediment (0-6 in) SWAC Concentration Total PCBs
6.0
5.5-
5.0-
4.5-
4.0-
|> 3.5 -
do 3.0-
O
2.5 -j
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1.5
1.0
0.5
0.0 -t
SWAC
5 (mg/kg)
SWAC = 0.405
(mg/kg)
hJfffrriltnTff
SWAC = 0.632 (mg/kg)
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_:•
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Distance (ft)
Referenced: (CTI and Associates, Inc.; Arcadis US, Inc., 2024)
In the fall of 2013, sediment samples were collected for the purpose of improving the CSM. The
results are further discussed in the 2014 and 2019 FYR Reports (EPA, 2014; EPA, 2019). The total
PCB SWAC concentrations for the 2021 baseline 0- to 6-inch samples are compared to the total PCB
SWAC concentrations for the 2013 historical 0- to 6-inch samples collected using the incremental
sampling methodology during the 2013 Conceptual Site Model Sample Event (CTI and Associates,
Inc., 2015).
22
-------
The total PCB SWAC concentrations for the 2013 historical 0- to 6-inch samples ranged from 0.490
to 3.96 mg/kg, and the total PCB SWAC concentrations for the 2021 baseline 0- to 6-inch samples
ranged from 0.280 to 1.06 mg/kg. When the 2021 baseline sediment data were examined on a
length-weighted basis for comparison to the historical 0- to 6-inch sampling interval, SWAC values in
River Mile 1 (i.e., the first mile of the Site) were of similar magnitude to the composite sample
concentrations measured in 2013 (2015; 1.05 mg/kg and 1.02 mg/kg, respectively). In comparison to
the sampling conducted in 2013, SWAC concentrations in River Mile 1 (i.e., the first mile of the Site)
declined by 73% over this 8-year period (Table 6 and Figure 3). In each of River Miles 2 through 8,
the 2021 SWAC concentrations are also lower than those calculated for the 2013 data, with declines
between 24% to 48% over this 8-year period (Table 6).
Table 6: Total PCB SWAC Concentrations in Sediment Samples
River Mile
2013
2021
Percent
Change in
0-6 inch
0- to 6-inch
(mg/kg)
0- to 2-inch
(mg/kg)
0- to 6-inch
(mg/kg)
1
3.96
0.295
1.06
73%
2
0.910
0.638
0.696
24%
3
0.490
0.249
0.280
43%
4
0.600
0.303
0.336
44%
5
0.800
0.459
0.528
34%
6
1.01
0.542
0.606
40%
7
1.32
0.701
0.811
39%
8
1.30
0.542
0.675
48%
Note: For the 2021 samples, the 0- to 2-inch and 2- to 6-inch sampling interval results were length-weighted to calculate the 0- to 6-
inch interval concentration.
Referenced: (CTI and Associates, Inc., 2014; CTI and Associates, Inc.; Arcadis US, Inc., 2024)
Total PCB concentrations in sediment have also been compared to historic sediment data collected
at the Site dating back to the 1980s. The historical data comparison is available in Figure 3. For the
0- to 6-inch depth interval, total PCB concentrations in 2021 sediment samples exhibit a continued
trend of long-term declines in comparison to historical samples collected periodically since the
1980s, including multiple rounds of samples collected between State Highway M-59 (M-59) and
Bowen Road after the remedial action implemented in 1981 and 1982. Examining the data trends
for all historical sampling events within reaches of the Site bounded by bridges illustrates the
declines over time in surface sediment PCB concentrations at the Site (Figure 3).
23
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Figure 3: Total PCB Concentrations in Sediment Samples (0 to 6 inches) Over Time (in Downstream
Direction)
1,000-
100-
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to Chase Lake Road
Chase Lake Road
to Steinacker Road
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Boxplot Legend
X
7
Detect
(above max non-detect detection limit)
90th Percentile
75th Percentile
50th Percentile (Median)
Maximum Non-detect Detection Limit
25th Percentile
10th Percentile
Non-detect
(plotted at detection limit
Detect
(below max non-detect detection limit)
Notes;
1. For the 2021 samples, the 0- to 2-inch and 2- to 6-inch sampling interval results were
length-weighted to calculate the 0- to 6-inch interval concentration.
2. For 1980 to 2013 dataset, sample results with a bottom depth less than or equal to 6
inches are included.
3. Three samples collected in 2003 between Bowen Road to West Marr Road are excluded
from this figure. All three results are below 0.4 mg/kg.
4. Non-detects included at the detection limit in percentile estimation.
5. Non-detects plotted at the detection limit.
6. Detected parent and duplicate sample results were averaged to represent a single result
for that sample. Detected result was selected if either parent of duplicate sample result
was a non-detect. Maximum detection limit was selected if both parent and duplicate
sample results were non-detects.
Referenced; (CTI and Associates, Inc., 2014; CTI and Associates, Inc.; Arcadis US, Inc., 2024;
ENTACT Environmental Services, 2003; ENTACT Environmental Services, 2006; ENTACT
Environmental Services, 2010; Malcolm Pirnie Engineers, 1995; Tetra Tech EM. Inc., 2001)
The 2021 baseline data shows that the long-term cleanup goal of the sediment remediation to
achieve a SWAC between 0.003 and 0.2 mg/kg PCBs has not been met at any of the river miles.
However, when comparing the 2021 0- to 6-inch SWAC concentrations to historic 0- to 6-inch
baseline SWAC concentrations, total PCB SWAC concentrations have decreased over time suggesting
24
-------
natural recovery may be occurring. However, due to age of the data, differences in sampling or
analysis methods, or other factors, data comparability for long-term trend analysis are limited. The
first MNR Report, submitted in April 2024 outside the review period for this FYR, will provide a more
detailed data comparability analysis and will further discuss the data limitations. Future datasets
collected for the LTMP should be directly comparable to the 2021 baseline data to ensure a more
robust analysis of natural recovery. It is also recommended that future LTMP sampling assess
whether new or continuing source(s) are re-supplying PCBs to surface sediment and preventing
achievement of the long-term cleanup goal.
Fish Tissue Sampling
In order to address unacceptable risks at the Site, EPA calculated a sediment cleanup goal to be
protective of mink through dietary consumption of fish or other ecological receptors. The ROD also
states that attaining the long-term cleanup goal to protect ecological receptors would eliminate the
need for fish consumption advisories for recreational fishing. The ROD did not identify any clean-up
goals for PCBs in fish tissue.
Fish tissue sampling was conducted in May 2021 in areas where historical fish tissue samples exist to
support development of trend analysis to evaluate the MNR, and to provide baseline data for future
monitoring. A total of 55 white sucker and panfish (rock bass, pumpkinseed, bluegill) were
submitted for analysis of PCB congeners and lipid concentrations in fillets.
Comparison of the historical PCB dataset to the current PCB dataset are affected by the difference in
the PCB analysis methods; historical data were primarily analyzed for PCB Aroclors (i.e., commercial
mixtures of PCB compounds) and the baseline fish data were analyzed for individual PCB congeners.
While the difference in the PCB analysis methods preclude a more rigorous statistical comparison
and in recognition of the uncertainty, the 2021 PCB congener concentrations were lower than those
observed historically (pre-2017) for similar species and sampling locations.
Based on comparison of the mean wet-weight total PCB congener concentrations in 2021 to the
mean wet-weight total Aroclor PCB concentrations from the period 1984 to 1994, white sucker and
panfish PCB concentrations in 2021 fish tissue samples are 88% lower than historical results for
respective fish tissue samples (Table 7). Maximum PCB concentrations in these species exhibit
declines of 97% in 2021 white sucker samples and 94% in 2021 panfish samples (Table 7). The fish
sampling results compiled for four sampling areas within the Site from Bowen Road to Chase Lake
Road illustrate significant recovery of PCB levels in the most recent fish tissue samples from 2020
(Figures 4 and 5).
25
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Table 7: Summary of Wet-Weight PCB Concentrations in Fish Tissue Samples
Dataset
Analyte
Frequency of
Detection
Minimum
Maximum
Mean
White Sucker
1984-
1994
Total Aroclor PCBs (mg/kg)
49/49 (100%)
0.220
61.7
6.83
2021
Total PCB Congeners (mg/kg)
15/15 (100%)
0.298
1.72
0.846
--
Percent Change 1984-1994 to
2021
—
--
97%
88%
Panfish (Black Crappie, Bluegill, Pumpkinseed, and Rock Bass)
1984-
1994
Total Aroclor PCBs (mg/kg)
28/28 (100%)
0.200
14.6
4.40
2021
Total PCB Congeners (mg/kg)
18/18 (100%)
0.341
0.851
0.528
--
Percent Change 1984-1994 to
2021
""
--
94%
88%
Note: Table summarizes PCB concentrations data for skin-on fillet fish tissue samples collected downstream of former CFC facility
between Bowen Road and Chase Lake Road.
Referenced: (CTI and Associates, Inc., 2015; CTI and Associates, Inc.; Arcadis US, Inc., 2024; Malcolm Pirnie Engineers, 1997; Warzyn
Inc., 1992)
Figure 4: Total PCB Concentrations in White Sucker Samples - Historical vs 2021 (in Downstream
Direction)
26
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White Sucker
24
22
20
18
S16
^ 14
m 12
a
10
ro
I2 8
6
4
2
0
Bowen
Road
West Man-
Road
Chase Lake
Road
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61.7
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o
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4
o
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ay
X
Legend:
• Detected Result
-r 90th Percentile
75th Percentile
T
50th Percentile (Median)
25th Percentile
10th Percentile
Notes:
1. Figure shows the wet-weight PCB concentrations for skin-on fillet
samples of each species of fish.
2. Historical data includes fish tissue sampling events completed
between 1984 and 1994.
Referenced: (CTI and Associates, Inc., 2015; CTI and Associates, Inc.;
Arcadis US, Inc., 2024; Malcolm Pirnie Engineers, 1997; Warzyn Inc., 1992)
I I Total PCB Congeners in 2021 Fish Tissue Samples
Total Aroclor PCBs in Historical Samples (see Note 2)
27
-------
Figure 5: Total PCB Concentrations in Panfish Samples - Historical vs 2021 (in Downstream Direction)
Panfish (Black Crappie, Bluegill, Pumpkinseed, and Rock Bass)
O)
E
24
22
20
18
: 16
14
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1
i
i
Legend:
1
Detected Result
90th Percentile
75th Percentile
50th Percentile (Median)
25th Percentile
10th Percentile
Notes:
1. Figure shows the wet-weight PCB concentrations for skin-on fillet
samples of each species of fish.
2. Historical data includes fish tissue sampling events completed
between 1984 and 1994.
Referenced: (CTI and Associates, Inc., 2015; CTI and Associates, Inc.;
Arcadis US, Inc., 2024; Malcolm Pirnie Engineers, 1997; Warzyn Inc., 1992)
I I Total PCB Congeners in 2021 Fish Tissue Samples
] Total Aroclor PCBs in Historical Samples (see Note 2)
Surface Water Sampling
The ROD does not include a long-term cleanup goal for surface water. However, surface water
sampling and analysis is key to evaluating changes in PCB concentrations to support natural recovery
assessment; assess changes in PCB concentrations over time; evaluate changes in PCB transport over
time; and to update the CSM.
Between September and November 2020, PCB concentrations in river surface water were measured in
both time-averaged samples, using SP3™ samplers, and discrete samplers. The time-averaged surface
water data collected were PCB congener concentrations in surface water at a series of locations from
28
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upstream of the former CFC facility and to downstream locations. Paired with estimates of flow at each
monitoring station, these data also made possible estimates of PCB load gain between surface water
monitoring stations (e.g., the amount of PCBs entering the river between each monitoring station). The
measurements also provide baseline data for possible future monitoring. The discrete surface water
sample data were collected to provide baseline data for future monitoring and were also compared to
historical data to assess changes over time in surface water PCB concentrations.
Surface water dissolved total PCB congener concentrations measured in 2020 are compared to
historical dissolved total Aroclor PCBs in 1983. Data comparison for long-term trend analysis is limited
due to differences in collection methods (grab or passive sampling), processing approaches (filtered
versus non-filtered accounting for dissolved versus total PCBs, respectively), and chemical analysis
techniques (Aroclor-based or congener-based methods). The 1983 data are also reflective of conditions
prior to the 2001 ROD. Additional data is needed to assess natural recovery in surface water following
the 2005 to 2006 removal action.
The maximum concentration detected in 2020 shows a decline of 98% compared to the maximum
concentration detected in 1983 (Table 8). Mean concentration values over this period have also
declined by 98% (Table 8). The long-term trends are shown in time series charts of the data at the
Bowen Road, West Marr Road, and Chase Lake Road sampling stations (Figure 6).
Table 8 - Summary of PCB Concentrations in Surface Water Samples
Dataset
Analyte
Frequency of
Detection
Minimum
Maximum
Mean
1983
Dissolved Total Aroclor PCBs (ng/L)
15/15 (100%)
0.0190
1.83
0.558
2020
Dissolved Total PCB Congeners
(M-g/L)
20/20 (100%)
3.79E-06
0.033
0.00995
Percent Change 1983 to 2020
--
--
98%
98%
Note: Table summarizes PCB concentrations data for discrete surface water samples collected between M-59 and Bowen Road.
Referenced: (Rice, White, Simmons, & Rossmann, 1984; CTI and Associates, Inc.; Arcadis US, Inc., 2024)
29
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Figure 6: Dissolved Total PCB Concentrations in Discrete Surface Water Samples collected Downstream
of Former CFC Facility
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Legend:
± 1982 Dissolved T otal Aroclor PCBs
A1983 Dissolved Total Aroclor PCBs
O2013 Dissolved Total PCB Congeners
Notes:
1. Open symbol indicates non-detect
result plotted at detection limit.
2. Parent and duplicate sample results
were averaged to represent a single
result for that sample.
Referenced: (Rice, White, Simmons, &
Rossmann, 1984; CTI and Associates, Inc.;
Arcadis US, Inc., 2024)
30
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EGLE also reported that a State-led surface water sampling and analysis effort was conducted in 2023
in the Shiawassee River. EPA has not been provided a comprehensive report of the PCB sampling,
analysis, and data evaluation effort. The surface water data will be reviewed in the next FYR if
complete documentation of the sampling effort is provided.
PCB SAMPLING IN UPLAND SOILS
The 2019 FYR documented apparent noncompliance with the requirements of the restrictive covenant
to maintain the existing asphalt cap (which is not a requirement in the ROD or Partial CD) (EPA, 2019).
Between August 20 and December 21, 2021, EPA contractor START implemented investigation
activities to assess whether modifications to the Site since the 2010 transfer of the Site to Lucy Road
Resources, LLC have impacted historically clean portions of the Site, created new routes of exposure to
PCBs, or created new conduits for releasing PCBs into the Shiawassee River (Tetra Tech, Inc., 2023).
The investigation also evaluated whether the modifications to the Site have resulted in new routes of
exposure to metals. Metal-impacted soil (aluminum, antimony, chromium, nickel, silver, and zinc) was
identified in the southwestern portion of the former CFC facility beneath and adjacent to the site
building, but was not identified as a contaminant of concern (COC) in the 2001 ROD (AKT Peerless
Environmental & Energy Services, 2010). For more detailed information on the PCB investigation effort
in former CFC property soils (including relevant discussion, figures, and data tables), see the excerpt
from the report in Appendix C. Investigation activities included:
• Collecting and analyzing soil samples for PCBs and metals from various areas of the Site
including land clearing areas, former lagoons and northern wetland, and former lagoon ditches;
• Sampling landscaping materials along the eastern boundary of the former CFC facility for PCBs
and/or metals;
• Collecting sediment samples in the retention pond at the northern end of the former CFC
building and in Shiawassee River outfalls for PCBs analysis;
• Collecting wipe samples at Shiawassee River outfalls for PCB analysis; and
• Collecting perimeter ambient air samples for PCB analysis.
The findings of the investigation activities indicated that all soil samples were below the PCB cleanup
goal of 10 mg/kg. The data results indicate that the previous land clearing and regrading activities
documented in the 2019 FYR Report have not resulted in a direct contact risk for PCBs or metals in
shallow site soils or landscaping materials. Additionally, PCBs were not detected in perimeter ambient
air, and therefore no off-site inhalation risk associated with PCBs was identified. The following
subsections discuss the results by media in greater detail.
Soil Sampling
From August 23 to 31, 2021, soil was sampled from 250 soil borings using a combination of composite
and direct sampling. On September 15, 2021, seven composite soil samples were also collected from
landscaping material. Soil samples were analyzed for PCB Aroclors, and 25 percent of samples were
31
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also analyzed for target analyte list (TAL) metals, and hexavalent chromium (chromium [VI]). PCB
results were compared to the clean-up goal of 10 mg/kg PCBs. Metal results were compared to both
the EGLE Part 201 Generic Nonresidential Direct Contact Criteria (DCC), and the EPA Construction
Worker RSL based off a hazard quotient of 1, and a target cancer risk of lxlO"5. Since landscaping
material is being distributed to residences, soil results from landscaping materials were compared to
both EGLE Part 201 Generic Residential DCC and EPA Residential RSLs.
There were no PCBs Aroclors detected in soil samples above the cleanup goal of 10 mg/kg. Soil sample
results ranged from non-detect to 3.6 mg/kg PCBs. There were also no metal exceedances in soil
samples above the EGLE Generic Nonresidential DCC and the EPA Composite Worker RSL, with the
exception of one soil sample from landscaping material that had a manganese detection of 2,500
mg/kg, above the EPA Composite Worker RSL; however, the detection fell within the EPA Common
Concentration Range between 20 to 3,000 mg/kg.
Outfall Sampling
On September 16, 2022, 11 soil samples were collected immediately downstream of outfall pipes and
were analyzed for PCB Aroclors. Further, on September 28, 2021, one to three wipe samples were
collected from each of the eight outfall pipes identified at the former CFC property.
No PCB Aroclors were detected in any of the outfall soil samples or in any of the outfall wipe samples.
Sediment Sampling
On August 25, 2021, five discrete sediment samples were collected from the retention pond on the
northern portion of the Site from 0- to 6-inches below ground surface. Sediment samples were
submitted for laboratory analysis of PCB Aroclors.
No PCB Aroclors were detected in any of the retention pond sediment samples.
Perimeter Ambient Air Sampling
From December 20 to 21, 2021, four 34-hour perimeter ambient air samples were collected along the
eastern boundary of the Site to assess risk associated with fugitive dust for adjacent residential
properties. One background 34-hour ambient air sample was also collected along the western
boundary of the Site. Perimeter air samples were analyzed for PCB Aroclors.
No PCB Aroclors were detected in any of the perimeter ambient air samples.
32
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Site Inspection
The inspection of the Site was conducted on November 2, 2023. In attendance were Leah Werner, EPA
Region 5; Mary Schafer of EGLE; Brad Hartwell of Tetra Tech; John Allen of Lucy Road Resources, LLC;
James D. VandeWyngearde and Lisa Tomlinson of Adient (the PRP); Matt Handyside and Brian Finley of
CTI; and Lisa Tomlinson of Arcadis. The purpose of the inspection was to assess the protectiveness of
the remedy and determine whether there exists a current pathway for human health or ecological
exposure from the former CFC facility to the floodplain soils or Shiawassee River. The inspection also
included some areas along the Shiawassee River that are accessible by road; however, the inspection
did not address the entire eight-mile stretch of the Shiawassee River.
The Site inspection did not visually identify any issues that may call into question the protectiveness
and implementation of the remedy. The State of Michigan and/or applicable federal agencies have
been informed of the abovementioned observations, as necessary. Please refer to photographs from
the site inspection in Appendix F, and the Site Inspection Report in Appendix G.
V. TECHNICAL ASSESSMENT
QUESTION A: Is the remedy functioning as intended by the decision documents?
Question A Summary:
No. The remedy is not functioning as intended by the 2001 ROD. It appears that natural recovery may
be occurring at all river miles based on a preliminary comparison of baseline data collected from 2020
to 2021 with historic data. However, the historic data have limitations in terms of their comparability
due to the age of the data and differences in sampling or analysis methods.
The PRP submitted a draft of the first MNR Report in April 2024, however, the report was submitted
outside of the review period for this FYR Report and will be assessed in the next FYR. The MNR Report
will evaluate comparison between the historic data and the 2021 baseline data to evaluate whether
natural recovery has been occurring in a manner consistent with the natural recovery described in the
ROD (EPA, 2001). The PRP also submitted a draft LTMP in April 2024, outside the review period for this
FYR, which will be discussed in the next FYR. The LTMP must include an approach to evaluate natural
recovery, including a sampling plan and schedule to continue routine monitoring of PCB concentrations
in sediment, surface water, and fish tissue for a robust analysis of natural recovery. The future LTM
datasets will be directly comparable to the 2021 baseline data. Following collection of LTM data every
five years, the PRP will need to submit an MNR report that evaluates the comparison between the
2021 baseline data and LTM data and assesses whether natural recovery is occurring, surface sediment
SWAC PCB concentration changes and rates of decline, and trend analysis with comparison to the long-
term cleanup goal. The PRP should implement the first LTM data collection effort in 2025. The second
MNR Report should be submitted in 2027, two years in advance of subsequent FYR Report deadline.
33
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The ROD required post-remediation monitoring to ensure that natural recovery is occurring to meet
the long-term cleanup goal of SWACs between 0.2 to 0.003 over a period of 18 years (i.e., by 2023).
Evaluation of the baseline dataset indicates that none of the SWACs have met the long-term cleanup
goal. A total PCB load gain analysis discussed in the draft 2020-2021 Baseline Sampling Data Report
suggests a source of residual dissolved PCB contributions to the water column is located adjacent to
the former CFC facility, within the area previously targeted by dredging (CTI and Associates, Inc.;
Arcadis US, Inc., 2024). A Principal Component Analysis of the baseline sampling surface water data
similarly demonstrated a shift in PCB composition moving downstream from the former CFC property,
which could reflect a greater portion of weathered versus un-weathered PCBs entering the water
column, or potentially a different PCB source material (CTI and Associates, Inc.; Arcadis US, Inc., 2024).
A revised CSM should be developed in advance of the LTMP to understand potential ongoing sources
of PCBs to the river, transport, current exposure concentrations, and changes over time. Further, the
LTMP will evaluate additional source input into the Shiawassee River system. If additional source input
is determined to prevent achievement of the long-term cleanup goal, EPA will require the PRP to take
action to address the ongoing source(s).
Fish consumption advisories are in place and appear to be effective. Human exposures to
contaminated fish tissue at the Site are addressed through fish consumption advisories, but ecological
receptors could be impacted by elevated PCB concentrations.
The 2010 restrictive covenant is not legally enforceable by EPA. However, the property appears to have
been consistently zoned for industrial use and the IC currently in place and required in the ROD
appears to be effective. The investigation activities performed in 2021 determined that the land
clearing and regrading activities documented in the 2019 FYR report did not result in direct contact risk
for PCBs or metals above the site-specific long-term cleanup goal of 10 mg/kg in shallow site soils or
landscaping materials. The PRP will use best efforts to secure a deed restriction for the portion of the
former CFC property, Tax Parcel No. 4706-27-200-010 of Livingston County, identified as the Site
defined in the Partial CD, with Lucy Road Resources, LLC as both grantor and grantee. The deed
restriction would be enforceable by the PRP and EPA. The PRP and EPA will assess which land/water
use restrictions should be included as deed restrictions to proactively prohibit interference for the
integrity or protectiveness of the remedy. Land/water use restrictions in the form of ICs for the former
CFC property may be considered in the decision document for OU2.
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:
Yes, the exposure assumptions, toxicity data, cleanup levels, and RAOs used at the time of remedy
selection are still valid and appropriate. However, impacts of climate change, including increased
precipitation and flooding, could result in the resuspension of contaminated floodplain soils and
sediments to residential properties adjacent to the river. This may make the exposure assumptions
made at the time of the ROD no longer valid. If contaminated floodplain soils, sediments, or surface
34
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water are moving to areas where a 10 mg/kg PCBs cleanup goal is not appropriate, EPA would need to
evaluate whether exposure in those areas present unacceptable risk. A detailed CSM should evaluate
whether the floodplain soils act as a pathway for recontamination of sediment and/or adjacent
residential properties.
The 2021 sampling conducted at the former CFC property found that the land disturbance activities
documented in the 2019 FYR do not appear to have created new routes of exposure to PCBs. Land use
at the Site has not changed and the O&M Plan for ICs requires annual monitoring of the post-remedial
ICs at the former CFC property to ensure that the industrial site zoning remains in place and to monitor
property ownership.
QUESTION C: Has any other information come to light that could call into question the protectiveness
of the remedy?
Yes. The 2019 FYR Report documented that during the site inspection, there were signs of floodplain
soil erosion on the western shore of the river, west of the CFC facility (EPA, 2019). It further noted that
because floodplain soils were remediated to a PCB concentration of 10 mg/kg and the protective
concentration of PCBs in river sediment is 0.003 to 0.2 mg/kg, eroding floodplain soils or significant
flood events may represent a source of PCBs to the river. While significant floodplain erosion was not
observed along the western shore of the river near the former CFC property during the FYR site
inspection, impacts of climate change (e.g., increased precipitation or flooding) could be a path for
recontamination of river sediments by adjacent floodplain soils that may contain concentrations up to
10 mg/kg PCBs. Potential increased flooding may raise concern over human health exposures adjacent
to the river from resuspended sediment (e.g., vegetable gardens, livestock areas, playsets, basements).
A detailed CSM should evaluate whether floodplain soils act as a pathway for recontamination of
sediment and/or adjacent residential properties. The CSM should also evaluate the geomorphology of
the river and its potential correlation to contamination distribution.
VI. ISSUES/RECOMMENDATIONS
Issues/Recommendations
OU(s) without Issues/Recommendations Identified in the Five-Year Review:
None
35
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Issues and Recommendations Identified in the Five-Year Review:
OU(s): 1
Issue Category: Monitoring
Issue: Lack of long-term monitoring and process to evaluate progress of MNR at
the site.
Recommendation: Finalize the draft LTMP and implement the first round of LTM
data collection. Include in the plan a requirement for continued monitoring to
evaluate the progress of natural recovery toward meeting the long-term cleanup
goals in the ROD. The LTMP will require LTM data collection every five years,
which should be collected four years in advance of the subsequent FYR deadline.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party Responsible
Oversight Party
Milestone Date
Yes
Yes
PRP
EPA/State
6/30/2025
OU(s): 1
Issue Category: Remedy Performance
Issue: SWAC concentrations of PCBs in sediment from all river miles exceed the
2001 ROD long-term cleanup goals. A current evaluation of the natural recovery
processes at the Site, including evaluating whether natural recovery is occurring
and if and where ongoing source(s) of PCB contamination exist, is needed.
Recommendation: Finalize the first MNR Report, which should evaluate the
baseline data in the context of historic data to evaluate the progress of natural
recovery of PCBs in site media. The MNR Reports should also evaluate additional
source input into the system to determine if ongoing source(s) are preventing
natural recovery of sediment from meeting the long-term cleanup goal, and
whether additional response actions may be needed. Future MNR reports will be
based upon the results from implementation of the LTMP and should be
submitted two years before the subsequent FYR deadline.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party Responsible
Oversight Party
Milestone Date
Yes
Yes
PRP
EPA/State
9/30/2024
36
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OU(s): 1
Issue Category: Other
Issue: A CSM has not been revised for the Site since before the remedy
implementation.
Recommendation: An updated CSM should be developed that assesses potential
sources, transport, current exposure concentrations, and changes over time. A
detailed CSM should evaluate whether floodplain soils act as a pathway for
recontamination of sediment and/or adjacent residential properties.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party Responsible
Oversight Party
Milestone Date
Yes
Yes
PRP
EPA/State
9/30/2024
OU(s): 1
Issue Category: Operations and Maintenance
Issue: An O&M plan that includes a LTMP has not been developed as required by
the 2005 Partial CD.
Recommendation: Pursuant to Task 5 of the SOW included in the Partial CD, the
PRP will develop an O&M Plan following approval of the LTMP.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party Responsible
Oversight Party
Milestone Date
Yes
Yes
PRP
EPA/State
11/30/2025
OU(s): 1
Issue Category: Institutional Controls
Issue: The 2010 restrictive covenant is not legally enforceable by EPA.
Recommendation: Pursuant to the Partial CD paragraph 24, the PRP will use best
efforts to secure a deed restriction for the portion of the former CFC property,
Tax Parcel No. 4706-27-200-010 of Livingston County, identified as the Site
defined in the Partial CD, Lucy Road Resources, LLC as both grantor and grantee.
The deed restriction should be enforceable by the PRP and EPA. The PRP and
EPA should assess which land/water use restrictions should be included as deed
restrictions to proactively prohibit interference with the integrity or
protectiveness of the remedy.
Affect Current
Protectiveness
Affect Future
Protectiveness
Party Responsible
Oversight Party
Milestone Date
No
Yes
PRP
EPA/State
6/30/2025
37
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VII. PROTECTIVENESS STATEMENT
38
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0U1 and Sitewide Protectiveness Statement
Pro tectiven ess Deter m in a tion:
Not Protective
39
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Protectiveness Statement:
The remedy at the Shiawassee River Superfund Site is not protective of the environment. SWAC
concentrations of PCBs in sediment from all river miles exceed the 2001 ROD long-term cleanup goals.
A current evaluation of the natural recovery processes at the Site, including evaluating whether natural
recovery is occurring, the rate at which it may be occurring, and if and where ongoing source(s) of PCB
contamination exist, is needed.
Additional information is needed to determine whether the remedy is currently protective of human
health. The former CFC facility is currently zoned for industrial use and fish advisories are in place.
However, additional information is required to determine if impacts of climate change (i.e., increased
precipitation and flooding) are causing the resuspension of contaminated floodplain soils and
sediments to residential properties adjacent to the river, resulting in the redistribution of and potential
new or different exposure routes to PCB contamination.
The following actions need to be taken to ensure protectiveness:
1. Finalize the draft LTMP and implement the first round of LTM data collection. Include in the plan a
requirement for continued monitoring to evaluate the progress of natural recovery toward
meeting the long-term cleanup goals in the ROD. The LTMP will require LTM data collection every
five years, which should be collected four years in advance of the subsequent FYR deadline.
2. Finalize the first MNR Report, which should evaluate the baseline data in the context of historic
data to evaluate the progress of natural recovery of PCBs in site media. The MNR Reports should
also evaluate additional source input into the system to determine if ongoing source(s) are
preventing natural recovery of sediment from meeting the long-term cleanup goal, and whether
additional response actions may be needed. Future MNR reports will be based upon the results
from implementation of the LTMP and should be submitted two years before the subsequent FYR
deadline.
3. An updated CSM should be developed that assesses potential sources, transport, current exposure
concentrations, and changes overtime. A detailed CSM should evaluate whether floodplain soils
act as a pathway for recontamination of sediment and/or adjacent residential properties.
4. Pursuant to Task 5 of the SOW included in the Partial CD, the PRP will develop an O&M Plan
following approval of the LTMP.
5. Pursuant to the Partial CD paragraph 24, the PRP will use best efforts to secure a deed restriction
for the portion of the former CFC property, Tax Parcel No. 4706-27-200-010 of Livingston County,
identified as the Site defined in the Partial CD, Lucy Road Resources, LLC as both grantor and
grantee. The deed restriction should be enforceable by the PRP and EPA. The PRP and EPA should
assess which land/water use restrictions should be included as deed restrictions to proactively
prohibit interference with the integrity or protectiveness of the remedy.
40
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VIII. NEXT REVIEW
The next FYR report for the Shiawassee River Superfund Site is required five years from the completion
date of this review.
41
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APPENDIX A
REFERENCE LIST
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APPENDIX A - REFERENCES
AKT Peerless Environmental & Energy Services. (2010). Baseline Environmental Assessment Conducted
Pursuant to Part 201 Section 20126(1)(C) of P.A. 451 of 1994, as Amended for 2440 W. Highland
Road, Howell, Michigan.
CTI and Associates, Inc. (2014). Draft-Technical Memorandum Conceptual Site Model Sample Event
Report, Shiawassee River Superfund Site, Howell, Michigan.
CTI and Associates, Inc. (2015). Draft Long-Term Monitoring Plan for Shiawassee River Superfund Site,
Howell, Michigan.
CTI and Associates, Inc. (2021a). Operation and Maintenance Plan for Institutional Controls.
CTI and Associates, Inc. (2021b). Final Annual O&M Inspection Report - 2021.
CTI and Associates, Inc. (2022). Draft Annual O&M Inspection Report - 2022.
CTI and Associates, Inc. (2023). Draft Annual O&M Inspection Report - 2023.
CTI and Associates, Inc., and Arcadis. (2020). 2020 LTMP Baseline Sampling Event Field Sampling Plan,
Shiawassee River Superfund Site, Howell, Michigan.
CTI and Associates, Inc.; Arcadis US, Inc. (2024). Draft 2020-2021 Baseline Sampling Data Report,
Shiawassee River Superfund Site, Howell, Michigan.
EGLE. (2023). 5th Five-Year Review (FYR) for the Shiawassee River Superfund site (ID) (Site) located in
Howell, Livingston County, Michigan. United States Environmental Protection Agency (USEPA)
Site ID: MID980794473.
EGLE. (2024). EGLE Review of the Fourth Five-Year Review (FYR) for the Shiawassee River Superfund
site (ID) (Site) located in Howell, Livingston County, Michigan, United States Environmental
Protection Agency (USEPA) Site ID: MID980794473.
ENTACT Environmental Services. (2003). Pre-Design Investigation Report.
ENTACT Environmental Services. (2005). Preliminary Remedial Action Completion Report for the
Shiawassee River Superfund Site.
ENTACT Environmental Services. (2006). Preliminary Remedial Action Completion Report for the
Shiawassee River Superfund Site, Revision 1.
ENTACT Environmental Services. (2010). Post-Remediation Monitoring 2010 Sampling Event for
Shiawassee River Superfund Site.
Environmental Research Group, Inc. (1982). Polychlorinated Biphenyl-Contaminated Sediment Removal
from the South Branch Shiawassee River.
EPA. (1983). NPL Site Narrative for Shiawassee River, Shiawassee River, Howell, Michigan. Region 5.
EPA. (2001). Record of Decision: Selected Remedial Alternative for the Shiawassee River Site, Howell,
Michigan. Region 5.
EPA. (2005). Preliminary Site Closeout Report: Shiawassee River Site, Howell, Michigan. Region 5.
EPA. (2006). Guidance on Systematic Planning Using the Data Quality Objectives Process (EPA QA/G-4).
Office of Environmental Information.
EPA. (2009). First Five-Year Review Report for Shiawassee River Site, Howell, Michigan. Region 5.
EPA. (2011). Superfund Property Reuse Evaluation Checklist for Reporting the Sitewide Ready-for-
Anticipated Use GPRA Measure. Region 5.
EPA. (2014). Five-Year Review Report for Shiawassee River Superfund Site, Howell, Livingston County,
Michigan. Region 5.
A-l
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EPA. (2019). Superfund Checklist for Rescinding the Sitewide Ready-for-Anticipated Use (SWRAU) GPRA
Measure. Region 5.
EPA. (2019). Third Five-Year Review Report for Shiawassee River Superfund Site, Livingston County,
Michigan. Region 5.
EPA. (2023a). Notification of the Five Year Review Start for the Shiawassee River Superfund Site, located
in the city of Howell, Michigan. Region 5.
EPA. (2023b). Shiawassee River Superfund Site Five Year Review (FYR) KickoffCall - Fiscal Year 2024.
Region 5.
Frank J. Kelly, et al. v. Cast Forge Incorporated, 77-3724-CE (State of Michigan in the Circuit Court for
the County of Livingston June 19, 1981).
Gannett Fleming of Michigan, Inc. (2008). Technical Memorandum for the Fourth Phase of the Remedial
Investigation Activities at the South Branch of the Shiawassee River, Howell, Michigan.
LivingstonDaily.com. (2023, September 3). EPA Begins Review of Shiawassee River Superfund Site.
Malcolm Pirnie Engineers. (1995). Development of Sediment Quality Objectives for PCBs.
Malcolm Pirnie Engineers. (1997). Remedial Alternatives Feasibility Study for the South Branch
Shiawassee River Superfund Site, Howell, Michigan.
Michigan Department of Health and Human Services. (2023). Eat Safe Fish Guide.
Pace Incorporated, Warzyn Inc. (1992). Baseline Risk Assessment, South Branch Shiawassee River,
Howell, Michigan.
Rice, C. P., White, D. S., Simmons, M. S., & Rossmann, R. (1984). Assessment of the Effectiveness of the
Cleanup of the PCBs from the South Branch of the Shiawassee River - Field Results.
Spilkin, A. Z. (2010). Covenant Deed for 2440 W. Highland Rd., Howell, Michigan. Bodman LLP.
Stofferahn, J. (2005). Field Modification, Shiawassee River Superfund Site, Howell, Michigan. Entact
Environmental Services.
Tetra Tech EM. Inc. (2001). Final Supplemental Feasibility Study Report for Shiawassee River Site,
Howell, Ml.
Tetra Tech, Inc. (2023). Final Assessment Report for the Shiawassee River Superfund Site, Howell,
Livingston County, Michigan.
United States of America v. Johnson Controls, Inc., et al., 04-74987 (The United States District Court for
the Eastern District of Michigan Southern Division January 22, 2004).
United States of America v. Johnson Controls, Inc., Hoover Universal, Inc., and Multifastener
Corporation, 04-74987 (The United States District Court for the Eastern District of Michigan
Southern Division January 22, 2004).
Warzyn Inc. (1992). Remedial Investigation Report, South Branch Shiawassee River, Howell, Michigan.
Warzyn Inc. (1992). Remedial Investigation Report, South Branch Shiawassee River, Howell, Michigan.
A-2
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APPENDIX B
GENERAL SITE FIGURES
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APPENDIX B-SITE MAP
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Figure 2. Schedule !-A from May 19, 2020 covenant deed conveying the former CFC property to Lucy
Road Resources, LLC. The covenant deed depicted the shaded area as the area in which the institutional
controls described in the ROD apply.
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APPENDIX C
EXCERPT, FINAL ASSESSMENT REPORT
PREPARED BY TETRA TECH, INC. SUPERFUND TECHNICAL ASSESSMENT AND RESPONSE TEAM
DATED SEPTEMBER 23, 2023
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FINAL ASSESSMENT REPORT
SHIAWASSEE RIVER SUPERFUND SITE
HOWELL, LIVINGSTON COUNTY, MICHIGAN
U.S. Environmental Protection Agency (EPA) Region 5
25213 Dequindre Road
Madison Heights, Michigan 48071
Tetra Tech, Inc. Superfund Technical Assessment and Response
1 South Wacker Drive, Suite 3700
Chicago, IL 60606
EPA Contract Number: 68HE0519D0005
Task Order - Task Order (TO): 68HE0520F0065
Document Tracking Number: 0376b
Final
September 28, 2023
Prepared for:
Submitted by:
Team
-------
Final Assessment Report - Final
Shiawassee River Superfund Site
September 28, 2023
TO-TOLIN: 68HE0520F0065
CONTENTS
1. Introduction 1
1.1. Site Background 3
1.2. Objectives 5
2. Investigative Methodology 7
2.1. PCBs and Metals Investigation 7
2.1.1. Soil Sampling 7
2.1.2. Outfall Sampling 8
2.1.3. Sediment Sampling 8
2.1.4. Perimeter Ambient Air Sampling 9
2.2. Vapor Intrusion Investigation 9
2.2.1. Membrane Interface Probe (MIP) Profiling 9
2.2.2. Soil Sampling 10
2.2.3. Monitoring Well Installation and Groundwater Sampling 10
2.2.4. Soil Gas Probe Installation and Soil Gas Sampling 11
2.2.5. Sub-Slab Soil Gas and Indoor Air Sampling 12
2.3. Sample Handling, Tracking, and Custody 14
2.3.1. Sample Labeling 14
2.3.2. Sample Chain of Custody 14
2.3.3. Sample Packaging and Shipping Procedures 16
2.3.4. Quality Assurance and Quality Control Procedures 17
2.4. Field Measurements and Recordkeeping 18
2.5. Decontamination Procedures 19
2.5.1. Decontamination of Drilling Equipment 19
2.6. Disposal of Investigation-Derived Waste 20
2.7. Analytical Methodology 21
3. Environmental Setting 23
3.1. Regional Physiography 23
3.2. Regional Geology and Hydrogeology 23
3.3. Site Geology and Hydrogeology 23
4. Results 24
4.1. PCBS and metals investigation 24
4.1.1. Soil Sampling 24
Page i
TETRA TECH
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Shiawassee River Superfund Site
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4.1.2. Outfall Sampling 25
4.1.3. Sediment Sampling 25
4.1.4. Ambient Air 25
4.2. Vapor Intrusion Investigation 26
4.2.1. Soil Sampling 26
4.2.2. Groundwater Sampling 26
4.2.3. Soil Gas Sampling 27
4.2.4. Sub-Slab Soil Gas and Indoor Air Sampling 28
4.2.5. Ambient Air Sampling 30
4.3. Quality Assurance/Quality Control 30
5. Summary and Recommendations 31
5.1. PCBs and Metals Investigation 31
5.2. Vapor intrusion investigation 31
5.3. Conclusions and Recommendations 32
6. References 34
TABLES
Table 1 — Project Personnel 1
Table 2 — Samples with Chemicals of Concern Exceeding Screening Levels 21
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APPENDICES
Appendix A. Figures
Appendix B. Tables
Appendix C. EPA Calculator Inputs for Screening Levels
Appendix D. Photographic Documentation Log
Appendix E. Monitoring Well Logs
Appendix F. Soil Gas Probe Logs
Appendix G. Membrane Interface Probe (mip) Profiles
Appendix H. Groundwater Sampling Field Forms
Appendix I. Air Sampling Field Forms
Appendix J. Data Validation Reports
ATTACHMENTS
Attachment 1. Laboratory Analytical Report
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LIST OF ACRONYMS
AA
Ambient air
ASB
Analytical Services Branch
BEA
Baseline Environmental Assessment
CFC
Caste Forge Company
CLP
Contracts Laboratory Program
COC
Chain of custody
DCC
Direct Contact Criteria
DCE
Dichloroethene
DOT
U.S. Department of Transportation
DWC
Drinking Water Criteria
DWPC
Drinking Water Protection Criteria
ECD
Electron capture detector
EGLE
Michigan Department of Environment, Great Lakes, & Energy
EPA
U.S. Environmental Protection Agency
FID
Flame ionization detector
FL
Former lagoon
FSP
Field Sampling Plan
GSIC
Groundwater/Surface Water Interface Criteria
HDPE
High density polyethylene
HQ
Hazard quotient
IA
Indoor air
IDW
Investigation-derived waste
LC
Land clearing
LD
Former lagoon ditch
LM
Landscape material
LTCG
Long-Term Cleanup Goal
MDEQ
Michigan Department of Environmental Quality
MDNR
Michigan Department of Natural Resources
MIP
Membrane interface probe
MS/MSD
Matrix spike/matrix spike duplicate
NP
Northern portion
NPL
National Priority List
NRCS
Natural Resource Conservation Service
NW
Northern wetland
OF
Outfall
PA
Perimeter ambient air
PCB
Polychlorinated biphenyl
PCE
Tetrachloroethene
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PFAS
Per- and Polyfluoroalkyl Substances
PFOA
Perfluorooctanoic acid
PID
Photoionization detector
PPE
Personal protective equipment
ppm
Parts per million
PVC
Polyvinyl chloride
QA
Quality assurance
QC
Quality control
RD
Restricted area ditch
RIASL
Recommended Interim Action Screening Level
ROD
Record of Decision
RP
Retention pond
RSL
Regional Screening Level
SG
Soil gas
SMO
Sample Management Office
SOP
Standard operating procedure
SS
Sub-slab soil gas
START
Superfund Technical Assessment and Response Team
TAL
Target analyte list
TCA
Trichloroethane
TCE
Trichloroethene
TR
Target cancer risk
TW
Temporary monitoring well
USDA
U.S. Department of Agriculture
VC
Vinyl Chloride
VIAPSL
Volatilization to Indoor Air Pathway Screening Level
VISL
Vapor Intrusion Screening Level
VOC
Volatile organic compound
XSD
Halogen specific detector
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1 . INTRODUCTION
Under Superfund Technical Assessment and Response Team (START) Contract No. 68-HE-
0519-D0005, Task Order No. (TO) 68HE0520F0065, U.S. Environmental Protection Agency
(EPA) tasked Tetra Tech, Inc. (Tetra Tech) to perform a site assessment at the Shiawassee River
Superfund site (the site) in Howell, Livingston County, Michigan. Historically, polychlorinated
biphenyls (PCB) have been the primary contaminants of concern.
The primary objectives of this site assessment were to: (1) determine whether recent activities at
the former Cast Forge Company (CFC) facility have resulted in a release of PCBs or metals at
the site, (2) perform a vapor intrusion assessment at the site, and (3) assess the presence of
emerging contaminants (1,4-dioxane and per- and polyfluoroalkyl substances [PFAS]) in site
groundwater.
Assessment activities was completed by the following personnel:
Table 1 — Project Personnel
Name
Organization
Title
Brad Hartwell
Tetra Tech, Inc.
Project Manager, Field Team Leader
Leah Werner
U.S. Environmental Protection Agency
Remedial Project Manager (Current)
Greg Gehrig
U.S. Environmental Protection Agency
Remedial Project Manager (Previous)
Emily Dunbar
Tetra Tech, Inc.
Field Environmental Scientist
Todd Grossmann
Tetra Tech, Inc.
Field Environmental Scientist
Halie Kish
Tetra Tech, Inc.
Field Environmental Scientist
Chad Whelton
ALS Environmental (Holland, Ml)
Project Manager
Sue Anderson
ALS Environmental (Simi Valley, CA)
Project Manager
Elizabeth Nye
Eurofins Burlington
Project Manager
Various
Mateco Drilling Company
Driller
Cody Stoddard
Michigan Department of Environment,
Great Lakes, & Energy (EGLE)
Geological Technician
Various
Terra Probe Environmental, Inc.
Driller
Michigan Department of Environment, Great Lakes, & Energy (EGLE) conducted direct-push
drilling associated with the PCB and metals assessment at the site. Mateco Drilling Company
conducted the direct-push membrane interface probe (MIP) profiling, the temporary soil gas probe
installations, and the on-site temporary monitoring well installations. Terra Probe Environmental,
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Inc. conducted direct-push drilling for resampling of soil samples for volatile organic compounds
(VOCs) around the perimeter of the source building, and installed the monitoring wells at the west
adjoining property, Chestnut Woods Condominiums.
Most analytical services for the project were provided by either the EPA Analytical Services
Branch (ASB) or an EPA Contracts Laboratory Program (CLP) laboratory. ALS Environmental
provided VOCs analysis for indoor air and sub-slab soil gas, as well as PFAS analysis for
groundwater samples; and Eurofins TestAmerica provided PCBs analysis for outdoor perimeter
air.
This report summarizes the assessment activities; specifically, in addition to this introduction, it
contains the following:
• The assessment methodology (Section 2)
• The site's environmental setting (Section 3)
• Results of the assessment (Section 4)
• Summary and recommendations of the assessment (Section 5)
• A list of references cited herein (Section 6)
For reference, this report includes additional information contained in appendices and
attachments:
• Site figures (Appendix A)
• Summary tables of analytical results (Appendix B)
• EPA calculator inputs for screening levels (Appendix C)
• A photographic documentation log (Appendix D)
• Monitoring well logs (Appendix E)
• Soil gas probe logs (Appendix F)
• MIP profiling logs (Appendix G)
• Groundwater sampling field forms (Appendix H)
• Air sampling field forms (Appendix I)
• Data validation reports (Appendix J)
• Laboratory analytical reports (Attachment 1)
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1.1. SITE BACKGROUND
The Shiawassee River Superfund site is at 2440 West Highland Road (M-59) in Howell, Livingston
County, Michigan. The site includes the former CFC facility (now owned by Lucy Road Resources)
and approximately 8 miles of the Shiawassee River extending from the site downstream to the
Steinacker Road area; however, this investigation only focuses on the former CFC facility and
immediate surrounding area (see Figures 1 and 2, Appendix A). The former CFC property covers
approximately 51 acres and is bordered by wetlands to north and east, Highway M-59 to the
south, and the South Branch of the Shiawassee River to the west. The South Branch of the
Shiawassee River is surrounded by forested areas, flood plains, rural areas, wetlands, and
residences along the river. Based on the Five-Year Review Report for Shiawassee River
Superfund Site, August 2019, PCB contamination has not been reported at any of the residential
properties along the river. The Shiawassee River is not used as a drinking water supply; however,
groundwater is used by local residents for drinking water and other uses (EPA 2019a).
The former CFC facility manufactured aluminum wheels for the automotive industry, which used
PCBs as a heat retardant in oils from 1969 through 1972. Improper waste handling practices at
the property from 1969 through 1976 resulted in disposal of PCB-laden wastewater and sludges
on the CFC property, as well as the release of PCB-laden oils to an adjoining wetland and to the
South Branch of the Shiawassee River. Areas impacted by these disposal practices include the
initial unlined lagoon; former lined lagoon, overflow ditch, and overflow lagoon; flat area behind
the building; and the former discharge pipe area on the riverbank (EPA 2019a). During an
investigation performed by Michigan Department of Natural Resources (MDNR) in 1978 and
1979, high levels of PCBs were detected in soils around the site and in on-site monitoring wells.
PCB concentrations above 1 part per million (ppm) were found in sediment samples collected
from the Shiawassee River 14 miles downstream from the former CFC facility (EPA 2019a).
Following several rounds of sediment, soil, groundwater, and fish sampling completed by MDNR,
the site was added to the National Priorities List (NPL) in September 1983. In 2001, after
subsequent investigations and evaluations conducted by the responsible party, the EPA issued a
Record of Decision (ROD) for the site. The ROD required excavation and disposal of PCB-
contaminated soils, river, and floodplain sediments; institutional controls; and monitored natural
recovery. On May 19, 2010, a covenant deed with restrictions for the former CFC property was
finalized. The covenant deed (1) mandates limited use of a portion of the former CFC property to
industrial and limited industrial purposes only; (2) prohibits removal of asphalt or concrete that
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covered the surface of the Restricted Property, unless promptly replaced by similar asphalt or
concrete caps; (3) prohibits groundwater use at, in, or under the Restricted Property; (4) requires
that owners "manage all soils, media, and/or debris on the Restricted Property;" (5) stipulates that
owners "shall not treat," "store," or "dispose" of any hazardous materials on, at, or below the
Restricted Property; and (6) provides access, as necessary, for environmental purposes,
including environmental investigations, responses, correction actions, or remediation (EPA
2019a).
According to a 2010 Baseline Environmental Assessment (BEA) performed by AKT Peerless, the
site has extensive sand formations that begin just below ground surface (bgs) and extend to a
maximum investigated depth of 24 feet bgs. The sand is generally fine-to-medium grained, with
traces of silt and gravel. The hydrogeology encountered during soil boring activities completed by
AKT Peerless in 2010 consisted of a shallow, unconfined groundwater bearing formation with the
apparent upper extent of the water table ranging in depth from approximately 6.5 to 19.5 feet bgs.
Elevated chlorinated VOC concentrations were reported in soil southwest along the site building,
and at a nearby former sump location within the southern portion of the site building. Elevated
chlorinated VOC concentrations were also reported in groundwater northwest along the site
building (near a former discharge line routed toward the Shiawassee River), and at the former
sump location (AKT Peerless 2010).
Based on the 2019 EPA five-year review report, an inspection identified apparent non-compliance
with the requirements to maintain the existing asphalt cap parking lot. In addition, the inspection
indicated that modifications have been made to the former CFC property, including grading,
removal of vegetation, construction of driveway and drainage structures, and filling of wetlands at
the northern end of the property with a mixture that included material from the former CFC
property (according to a permit application filed with Michigan Department of Environmental
Quality [MDEQ]). Lastly, soil and gravel were observed at the grate of a storm drain, suggesting
that material from the Restricted Property has washed into the storm drain and deposited in the
floodplain and/or the Shiawassee River during rain events. As a result, there is a potential for an
ongoing release of PCB-contaminated material from the former CFC property (EPA 2019a).
The site building is currently occupied by the following businesses: a landscaping supply
company, an industrial equipment scrapyard, a metal fabricator, a used industrial parts supply
company, a soap manufacturer, and a plumbing company.
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Because the 2010 BEA identified elevated chlorinated VOCs in either soil or groundwater in
numerous locations at the site, a vapor intrusion investigation is warranted at the site. Since
groundwater sampling will occur as a part of the vapor intrusion investigation, groundwater will
also be analyzed for emerging contaminants, including 1,4-dioxane and PFAS.
1.2. OBJECTIVES
The primary objectives of this site assessment are to:
• Determine whether recent modifications made at the site have: impacted historically clean
portions of the site, created new routes of exposure to PCBs, or created new conduits for
releasing PCBs into the Shiawassee River. Specific areas requiring PCB assessment
include areas known to have PCB contamination, areas that underwent remediation on
PCBs, areas historically found to not have PCB contamination, and outfalls that drain to
the Shiawassee River and its floodplain.
• Evaluate risks at the site associated with contaminants identified by the 2010 BEA (metals,
VOCs, and PFAS), but not addressed in the ROD.
• Evaluate groundwater risks associated with emerging contaminants, including 1,4-dioxane
and PFAS.
The field activities conducted to achieve these objectives included the following:
• Advancing soil borings and collecting soil samples in various areas of the site including the
land clearing areas, the northern portion of the site, former lagoons and northern wetland,
former lagoon ditches, and the ditch in the restricted area. Soil samples were field screened
for PCBs and metals content. A subset of soil samples were submitted to a laboratory for
PCBs and/or metals analyses.
• Sampling landscaping materials in three-sided bays along the eastern boundary of the
industrial property for PCBs and/or metals analyses.
• Collecting sediment samples in the retention pond at the northern end of the industrial
building and in the Shiawassee River outfalls for PCBs analysis if sediment amount is
sufficient.
• Collecting PCB wipe samples at Shiawassee River outfalls.
• Collecting perimeter ambient air samples for PCB analysis.
• Conducting a MIP investigation followed by soil, groundwater, and soil gas sampling for
VOC analysis. Groundwater was also analyzed for PFAS.
• Collecting sub-slab soil vapor samples for VOCs analysis where warranted based on
exterior soil gas sample results.
• Collecting indoor air samples for VOCs analysis.
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The general approach for implementing each of these activities is discussed in Section 4.0 of this
Final Assessment Report.
All START field activities were conducted in accordance with the EPA-approved, site-specific
Quality Assurance Project Plan (QAPP) Addendum (Tetra Tech 2021b), and the standard
operating procedures (SOP) identified in the site-specific Field Sampling Plan (FSP), Revision 3
(Tetra Tech 2021a).
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2. INVESTIGATIVE METHODOLOGY
This section describes the general approach and the methods employed to implement
assessment activities at the site. Photographic documentation of assessment activities is provided
as Appendix D.
2.1. PCBS AND METALS INVESTIGATION
This section describes the general approach and the methods employed to implement the
investigation activities for assessing PCBs and metals contamination at the site. The PCBs and
metals investigation took place from August 20, 2021 to December 21, 2021, with utility clearing
performed by Mateco Drilling Company, drilling performed by EGLE, and all soil logging and
sampling performed by START.
2.1.1. Soil Sampling
From August 23 to August 31, 2021, an EGLE drilling technician advanced approximately 250
soil borings via direct push methods at the site, and soil was sampled by START using a
combination of composite and discrete sampling. START advanced the soil borings for the former
lagoon ditches (LD) decision units LD-04 and LD-05 with a 3-inch diameter hand auger. Proposed
soil boring locations were based on the decision units, sample locations, and methodology in the
Draft Sampling and Analysis Plan developed by EPA (EPA 2019b).
The land clearing (LC) investigation area was divided into four decision units, with each decision
unit comprised of between 6 and 13 soil boring locations (Appendix A, Figure 3A). Three of the
northernmost proposed boring locations in land clearing decision units LC-01 and LC-02 were
inaccessible due to the presence of steep berms surrounding the retention pond, therefore, those
borings were omitted. The former lagoon (FL) and northern wetland (NW) investigation areas
included four decision units, with each decision unit comprised of between 2 and 10 soil boring
locations (Appendix A, Figure 3B). The LD investigation area included six decision units, with
each decision unit comprised of between 3 and 4 soil boring locations (Appendix A, Figure 3C).
The northern portion (NP) investigation area included 13 decision units, with each decision unit
comprised of between 2 and 6 soil boring locations (Appendix A, Figure 3D). START collected
two composite samples from each decision unit to represent two depth intervals: 0 to 6-inch bgs,
and 6 to 24-inch bgs. In the restricted area ditch (RD), 10 soil borings were advanced to 7 feet
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bgs, with discrete soil samples collected by START from 0 to 1 foot bgs, 1 to 3 feet bgs, 3 to 5
feet bgs, and 5 to 7 feet bgs (Appendix A, Figure 3D).
Soil samples were field screened for PCBs using a Dexsil L2000DX Analyzer. If screening of a
sample indicated a PCB concentration exceeding 10 mg/kg, the sample was sent for laboratory
analysis for PCB Aroclors as described in Sections 2.2 through 2.6. Additionally, 25% of samples
for which field screening indicated a PCB Aroclor concentration of < 10 mg/kg were sent for
laboratory analysis. All soil samples were also field screened with an XRF analyzer (Olympus
Delta Professional Alloy Plus) for metals, and 25% of the soil samples were submitted for
laboratory analysis for target analyte list (TAL) metals and hexavalent chromium (chromium VI),
as described in Sections 2.2 through 2.6.
On September 15, 2021, START collected seven composite soil samples from the three-sided
bays containing landscaping material (LM) on the east portion of the site (Appendix A, Figure 3G).
Samples were submitted for analysis for PCB Aroclors, TAL metals, and chromium VI, as
described in Sections 2.2 through 2.6.
2.1.2. Outfall Sampling
On September 16, 2022, START conducted outfall soil sampling activities. Insufficient sediment
mass was observed within the outfall pipes identified in the field. In order to obtain similar data,
11 soil samples were collected from 0-6 inches bgs immediately downstream of each outfall pipe
(Appendix A, Figures 3E, 3F). Three outfall (OF) soil sampling locations (OF-05, OF-08, and OF-
09) did not have discharge pipes, but were low areas where surface water flows off-site toward
the Shiawassee River. Outfall soil samples were for laboratory analysis for PCB Aroclors, as
described in Sections 2.2 through 2.6.
On September 28, 2021, one to three wipes were collected from each of 8 outfall pipes identified
at the property, depending on the diameter of the outfall pipe. Pipes with diameters of 4, 6, and
12 inches had 1, 2, and 3 wipes sampled per pipe, respectively. A total of 19 wipe samples were
collected from outfall pipes. Wipe samples were submitted for laboratory analysis for PCB
Aroclors, as described in Sections 2.2 through 2.6.
2.1.3. Sediment Sampling
On August 25, 2021, START collected five discrete sediment samples from the retention pond
(RP) at the northern portion of the site from 0 to 6 inches bgs (Appendix A, Figure 3E). Sediment
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samples were submitted for laboratory analysis for PCB Aroclors, as described in Sections 2.2
through 2.6.
2.1.4. Perimeter Ambient Air Sampling
From December 20 to 21, 2021, four 34-hour perimeter ambient air (PA) samples were collected
along the eastern boundary of the site to assess risk associated with fugitive dust for adjacent
residential properties (Appendix A, Figure 3A). One background 34-hour ambient air sample was
also collected along the western boundary of the site during the same sampling event. The
prevailing wind direction during sampling was from the southwest, and wind speeds varied
between 0 and 16 mph. While a 24-hour sampling period would best simulate a residential
receptor's exposure, a 34-hour sampling period was selected to satisfy the required reporting
limits for residential receptors. Perimeter ambient air samples were submitted for laboratory
analysis for PCB Aroclors, as described in Sections 2.2 through 2.6.
2.2. VAPOR INTRUSION INVESTIGATION
This section describes the general approach and the methods employed to implement the vapor
intrusion assessment activities both on- and off-site. The vapor intrusion investigation took place
from September 15, 2021 to January 5, 2023, with utility clearing, MIP profiling, soil gas probe
installations, and on-site temporary monitoring well installation performed by Mateco Drilling
Company; drilling for soil resampling and off-site temporary monitoring well installation performed
by Terra Probe Environmental, Inc.; interior utility clearing performed by GPRS; and all soil
logging, vapor pin installation, and sampling activities performed by START.
2.2.1. Membrane Interface Probe (MIP) Profiling
From September 15 to October 5, 2021, Mateco Drilling Company utilized a MIP to vertically
profile total VOCs in subsurface soil to between 15 and 20 feet bgs at 40 locations along the
perimeter of the site building (Appendix A, Figure 31). MIP technology uses heat to volatilize and
mobilize contaminants for sampling. Heating the soil or groundwater adjacent to the MIP's semi-
permeable membrane volatilizes the VOCs, which then pass through the probe's membrane and
into a carrier gas for transport to the ground surface. Once at the ground surface, the volatilized
subsurface gases were analyzed via a series of detectors consisting of an electron capture
detector (ECD) that detects general halogens (fluorines, chlorines, bromines), a halogen specific
detector (XSD) capable of detecting chlorinated halogens (trichloroethene (TCE),
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tetrachloroethene (PCE), dichloroethane (DCE), vinyl chloride [VC]), a photoionization detector
(PID) that detects a broad range of VOCs, and a flame ionization detector (FID) that also detects
a broad range of VOCs. A computer in the MIP rig recorded all MIP data in real-time. The MIP
profiles produced were used to determine the ideal soil sampling depths situated above the water
table. MIP profiles are provided in Appendix G.
2.2.2. Soil Sampling
On October 6 and 7, 2021, 10 subsurface soil samples were collected via direct-push methods at
locations and depths where the MIP profiles indicated the presence of VOCs above the water
table (Appendix A, Figure 3H). The subsurface soil samples were submitted for laboratory
analysis for VOCs, and were received by the CLP laboratory CHEMTEX in Port Arthur, Texas
well before the designated holding time. The samples were analyzed by the laboratory after the
designated holding time, resulting in the rejection of the majority of sampling results.
On August 9, 2022, the 10 subsurface soil samples were recollected at the same locations and
depths to obtain defensible analytical data. The resampled subsurface soil samples were
submitted for laboratory analysis for VOCs, to CLP laboratory Chemtech Consulting Group in
Mountainside, New Jersey as described in Sections 2.3 and 2.7.
2.2.3. Monitoring Well Installation and Groundwater Sampling
From October 6 to 7, 2021, Mateco Drilling Company installed 15 temporary monitoring wells
(TW) on the site within the uppermost portion of the aquifer (Appendix A, Figure 3H). Installed
well depths varied from 15 to 24 feet bgs, with 5-foot polyvinyl chloride (PVC) well screens, PVC
casing, and were finished with flush-mounted monuments set in a concrete pad. The annulus
surrounding the well casing included: concrete from 0 to 0.5 feet bgs, large bentonite chips from
0.5 to 2 feet above top of screen, well gravel from two feet above the well screen to the bottom of
screen, and bentonite to bottom of boring (where the boring was advanced deeper than the bottom
of well screen). Ten of the wells (TW-01E through TW-28, and TW-46) were selected based on
the MIP investigation that surrounded the site building and were installed within the same boring
the subsurface soil sample was collected. Five additional temporary monitoring wells (TW-41
through TW-45) were placed downgradient of the building along the western site boundary,
between the site building and the Shiawassee River, to monitor potential off-site transport of
VOCs, PFAS, and 1,4-dioxane in groundwater.
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On October 7 and 8, 2021, Tetra Tech developed the temporary monitoring wells TW-01E through
TW-46 with a peristaltic pump, and surged the well with sample tubing throughout development.
Each well had a minimum of 3 gallons of groundwater purged from the well during well
development, and each was pumped and surged until purge water was visibly clear.
On October 18 and 19, 2021,15 groundwater samples were collected using low-flow methodology
from on-site temporary monitoring wells. A peristaltic pump was used with dedicated high-density
polyethylene (HDPE) tubing to collect the groundwater samples. Samples were submitted for
laboratory analysis for VOCs, 1,4-dioxane, and PFAS, as described in Sections 2.3 and 2.7.
On October 20, 2021, Tetra Tech and EGLE surveyed top of casing elevations for monitoring
wells TW-01E through TW-46.
To delineate potential off-site groundwater migration of VOCs, on August 9 and 10, 2022, five
additional temporary monitoring wells (TW-47 through TW-51) were installed on the eastern half
of the west adjoining property (Appendix A, Figure 3H). Installed well depths varied from 6.3 to 8
feet bgs, with 5-foot well screens, and were finished with steel stickup covers. Tetra Tech
developed those wells on August 11, 2022.
On August 15 and 16, 2022, 18 groundwater samples were collected from 13 on-site temporary
monitoring wells and the five off-site wells. On-site monitoring wells TW-43 and TW-46 were not
sampled during this sampling event. TW-43 was found destroyed at the time of sampling, likely
during recent site grading activities; and TW-46 could not be located after significant effort. TW-
46 is believed to have been buried or destroyed during site grading activities. Groundwater
samples were submitted for laboratory analysis for VOCs, as described in Sections 2.3 and 2.7.
On September 7, 2022, Tetra Tech and EGLE surveyed top of casing elevations for monitoring
wells TW-47 through TW-51.
Monitoring well logs are provided in Appendix E. Groundwater sampling field forms are compiled
in Appendix H. A monitoring well inventory is provided in Table 11 of Appendix B.
2.2.4. Soil Gas Probe Installation and Soil Gas Sampling
From October 6 to 7, 2021, Mateco Drilling Company installed 40 soil gas (SG) probes (SG-01
through SG-38, SG-05E and SG-09SE) in the area surrounding the site building (Appendix A,
Figure 31). Installed probes were generally placed 2 feet above groundwater; installation depths
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varied from 7 to 13.5 feet bgs. Probes were constructed of 6-inch stainless steel well screens,
Teflon-lined tubing, and were finished with flush-mounted monuments set in a concrete pad. The
annulus surrounding the probe consisted of: concrete from 0 to 0.5 feet bgs, granular bentonite
from 0.5 feet bgs to 2.5 feet above top of screen, well gravel from 2.5 feet above top of screen to
bottom of screen, and granular bentonite from bottom of screen to bottom of borehole (where
borehole depth was greater than bottom of screen).
Three seasonal sampling events occurred in October 2021, March 2022, and May 2022. During
each event, 39 soil gas samples were collected from the previously installed probes. Soil gas
samples were collected using batch certified SUMMA canisters. A successful helium leak check
was performed at each probe prior to sample collection to ensure a closed sampling assembly.
Soil gas probes SG-09, SG-09SE, SG-10, and SG-11 were not sampled during at least one
sampling event, as the probe screens were submerged due to a tenant's routine discharge of
distilled water onto the nearby ground surface. In addition, probes SG-13 and SG-14 were
inaccessible during at least one sampling event, as several stacked polyethylene 300-gallon totes
were placed on top of the probes. The omission of these samples do not present a data gap, as
the analytical results collected at or near these locations were at least an order of magnitude lower
than screening levels. SG-21's concrete pad and flush mount monument had been damaged
during all three sampling events, but the tubing and seal were not compromised, as the location
passed the helium leak check for all three sampling events.
During each sampling event, at least one ambient air sample was collected near the soil gas
probe locations. Laboratory-furnished, individually certified summa canisters were used for all
ambient air samples.
Soil gas and ambient air samples were submitted for laboratory analysis for VOCs, as described
in Sections 2.3 and 2.7.
Soil gas probe logs are provided in Appendix F. Soil gas and ambient air sampling field forms are
compiled in Appendix I.
2.2.5. Sub-Slab Soil Gas and Indoor Air Sampling
On June 16, 2022, Tetra Tech and EPA completed a tour inside the site building to observe site
conditions, identify areas with potential secondary VOC sources (as they were concentrated in
just a few areas), and obtain concurrence on both sub-slab soil gas and indoor air sampling
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locations. A container inventory was not completed at the site building due to the large quantity
of containers and to minimize disruption of building occupants. The building owner was
interviewed during the site building tour to help answer vapor intrusion related questions.
On July 6, 2022, Tetra Tech installed 13 vapor pins (SS-01 through SS-05, and SS-07 through
SS-14) to conduct sub-slab soil gas sampling within the footprint of the site building. Vapor pins
were generally placed in proximity to impacted groundwater and soil gas (Appendix A, Figure 3J).
Slab thicknesses varied from 4 inches in the south office area, to between 7 and 14 inches in the
warehouse areas. Four vapor pins (SS-08 through SS-11) were installed horizontally in basement
walls at mid-wall height. Basement walls were consistently 8 inches thick. The vapor pins were
placed along vertical grout lines to avoid tapping into cinderblock voids but were not flush-finished
to prevent compromising the thin cinderblock walls. Vapor pins SS-08 and SS-11 are situated on
the west wall of the basement tunnel, vapor pin SS-09 is located on the north wall of the basement
tunnel, and vapor pin SS-10 is located on the east wall of the basement tunnel. Vapor pins
installed in warehouse areas were flush-finished, affixed with stainless steel covers; and vapor
pins installed in low-traffic office areas were flush-finished and covered with black plastic covers.
On July 12, 2022 and January 5, 2023, START collected 14 8-hour sub-slab soil gas (SS) samples
and 24 8-hour indoor air (IA) samples throughout the industrial building during each sampling
event. Sub-slab soil gas sample SS-06 was collected without a vapor pin and was placed within
a manhole exposed to underlying soil. Each sub-slab soil gas sample was collocated with an
indoor air sample. Sample locations were selected in consultation with EPA and generally were
distributed to evaluate the basement tunnel, numerous rooms within the southern office area,
partitioned warehouse spaces, and smaller rooms within the warehouses. Laboratory furnished,
batch certified SUMMA canisters were used for all sub-slab soil gas samples. A successful helium
leak check was performed at each vapor pin prior to sample collection to ensure both a closed
sampling assembly and a seal at the vapor pin, with the exception of the four vapor pins installed
horizontally in basement walls due to safety concerns.
To evaluate potential outdoor air sources, one or two ambient air (AA) samples were also
collected outside of the building during each event. Laboratory furnished, individually certified
SUMMA canisters were used for all ambient air samples.
Sub-slab soil gas, indoor air, and ambient air samples were submitted for laboratory analysis for
VOCs, as described in Sections 2.2 through 2.6.
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Sub-slab soil gas, indoor air, and ambient air sampling field forms are present in Appendix I.
2.3. SAMPLE HANDLING, TRACKING, AND CUSTODY
This section describes sample labeling, sample packaging and shipping procedures, and quality
assurance (QA)/quality control (QC) procedures for the soil and groundwater samples.
2.3.1. Sample Labeling
START used Scribe to generate a label for each sample. A sample label was affixed to each
sample container sent to the appropriate laboratory. The label included the following information:
• Project number
• CLP case number (if applicable)
• CLP sample number (if applicable)
• Sample name (including location number and sample date)
• Sample collection date and time
• Sample depth (if applicable)
• Preservative (if applicable)
• Sample collector's initials
• Analysis
After being labeled, each sample was preserved as specified in the site-specific FSP (Tetra Tech
2021a).
Labels for samples analyzed by a subcontracted laboratory included the following information:
• Project name
• Sample name (including location number and sample date)
• Sample collection date and time
• Sample collector's initials
• Analysis
• Preservative
2.3.2. Sample Chain of Custody
START used standard sample chain of custody (COC) procedures to maintain and document
sample integrity during collection, transportation, storage, and analysis. A sample was considered
"in custody" if one of the following statements applied:
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• Sample is in a person's physical possession or view.
• Sample is in a secure area with restricted access.
• Sample is placed in a container and secured with an official seal such that the contents
of the container cannot be reached without breaking the seal.
START used Scribe to generate and print laboratory and region copies of COC forms. The
laboratory copy was sealed inside the lid of the cooler. COC protocol provided an accurate written
record that traces the possession of individual samples from the time of collection in the field to
the time of acceptance at the laboratory. One COC record was generated for each cooler shipped.
The COC record was used to document all samples collected and the analysis requested. The
following information was documented on the COC form:
• Project name and number (region copy only, if applicable)
• CLP case number (if applicable)
• CLP sample numbers (if applicable)
• Sampling location (station identification)
• Name and signature of sampler
• Destination of samples (laboratory name)
• Sample identification number
• Date and time of collection (including start and end time/date for soil gas, sub-slab soil
gas, indoor air, and ambient air samples)
• Number and type of containers filled
• Analysis requested
• Preservatives used (if applicable)
• Sample designation (grab or composite)
• Special instructions (for example, laboratory needs to sub-sample oversized material
or perform additional homogenization)
• Signatures of individuals involved in custody transfer, including the date and time of
transfer
• Airbill number (if applicable)
• Project contact and phone number
• Custody seal number
• For soil gas, sub-slab soil gas, indoor air, and ambient air samples - initial and final
vacuum pressure readings
Samples analyzed by a subcontracted laboratory did not require Scribe. START used laboratory-
provided COC forms for these samples that require the same level of information as the EPA
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Scribe-generated COC forms, except for the CLP-specific information (CLP case number and
CLP sample numbers).
START followed the procedures in the EPA CLP Guidance for Field Samplers (EPA 2020) to
complete the documentation listed above.
START appointed one of its field technical staff members to serve as the sample custodian. When
all required documents have been completed, the sample custodian signed and dated the
document and list the time of sample collection. The custodian confirmed that all descriptive
information is complete on the COC forms, which was included with each shipping container. Two
custody seals were used: one custody seal was placed across the latch of the container, and the
other affixed on the opposite side of the container lid. The lid was securely taped shut for
shipment. The field sample custodian sent the original copies of the COC region copy for samples
shipped to a CLP laboratory to the project manager, who in turn submitted these forms to the
Region 5 Sample Management Office (SMO), care of Ms. Leah Werner or Mr. Greg Gehrig within
5 working days. The sample custodian also retained and scanned all copies of all COCs
(laboratory and region) for the project files.
2.3.3. Sample Packaging and Shipping Procedures
START packaged and shipped samples in accordance with the FSP and QAPP Addendum (Tetra
Tech 2021a, 2021b). The following procedures were implemented when samples collected during
this project were shipped to a CLP or subcontracted laboratory:
• All sample jars were individually wrapped with bubble wrap or other packing material and
placed in their own individual Ziploc-type bags.
• Ice was double bagged in large Ziploc-type bags and placed at the bottom of the cooler. If the
cooler has a drain, it was taped shut both inside and outside of the cooler.
• The cooler was lined with bubble wrap or other packing material, and all individually packaged
samples was placed into one large plastic bag and tied after all sample jars have been placed.
Sufficient packing material was used to prevent sample containers from breaking during
shipment.
• Additional ice (double-bagged) was added on top of the tied plastic bag full of samples.
Enough ice was added to maintain a sample temperature of 4 ± 2°C. START prepared,
labeled, and placed a temperature blank in each cooler.
• The laboratory was notified if (1) sampling personnel suspected that any sample contains
anomalously high concentrations (hand-write this anomaly directly on the laboratory copy of
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the COC form), or (2) a sampled substance required laboratory personnel to take safety
precautions.
• The COC specific to each cooler was sealed inside a plastic bag and taped to the inside of
the cooler lid. START personnel ensured that the COC form is signed by all samplers and the
custody seal numbers were included on the COC form. A return pre-paid air bill was included
with the COC form so the cooler may be returned to START.
• The cooler was closed and taped shut with strapping tape around both ends.
• Signed and dated custody seals were placed on the front and side of each cooler. Wide clear
tape was placed over the seals to prevent accidental tearing.
• The air bill, if required, was completed before the samples were relinquished to the carrier.
• The COC was transported within the taped sealed cooler. When the cooler is received at the
analytical laboratory, laboratory personnel opened the cooler and signed the COCs to
document transfer of samples.
• The Superfund SMO (for CLP laboratory samples) and the project contact person (for
subcontracted laboratory samples) were notified if the laboratory expected to receive samples
on a Saturday. START called its CLP sample coordinator, who in turn notified the SMO that
samples were sent to a CLP laboratory. ASB Region 5 does not accept Saturday delivery.
All shipping containers were labeled as required by the U.S. Department of Transportation (DOT).
After they had been packaged, the samples were shipped to the CLP laboratory specified by the
EPA Region 5 Regional Sample Control Coordinator, the ASB Region laboratory, or the
subcontracted laboratory.
Samples submitted to subcontracted laboratories followed similar packaging and shipping
procedures, except for those explicit to CLP. For example, SUMMA canisters for soil gas, sub-
slab soil gas, and indoor air samples were not shipped on ice and were shipped back to the
laboratory in the boxes used to ship them to the site.
2.3.4. Quality Assurance and Quality Control Procedures
All QA activities were conducted in accordance with the FSP and QAPP Addendum for the
Shiawassee River Superfund site (Tetra Tech 2021a, 2021b). A copy of the FSP was maintained
by the field sampling team for immediate reference in resolving any QA issues that arose during
field activities.
QC samples for all soil, sediment, landscaping materials and groundwater samples sent to the
ABS, CLP and subcontracted laboratory were collected at the following frequencies:
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• Field Duplicate: One per 10 environmental samples was collected, with a minimum of one
per sample matrix.
• Trip Blank Samples: One trip blank was included in each cooler containing aqueous samples
for analysis for VOCs.
• Matrix spike and matrix spike duplicate (MS/MSD) Samples: One per 20 environmental
samples per matrix collected.
• Rinsate Blank Samples: One per day of sampling to verify quality of decontamination
procedures of non-disposable equipment (if necessary).
An MS/MSD sample is an environmental sample divided into two separate aliquots, each of which
is spiked by the laboratory with known concentrations of target aliquots. The two spiked aliquots,
in addition to an unspiked sample aliquot, are analyzed separately, and the results are compared
to evaluate the effects of the matrix on the precision and accuracy of the analysis. MS/MSD
samples generally require collecting triple sample volume for water samples to be analyzed for
VOCs and double sample volume for all other analyses for groundwater samples. MS/MSDs for
samples of solid matrices do not require collection of extra volume. All samples were identified as
MS/MSD for the laboratory.
QC samples for vapor intrusion samples (soil gas, indoor air, and sub-slab (contingent) were
collected at the following frequencies:
Field Duplicate: One per 10 environmental samples was collected. Field duplicate samples
consist of two separate samples collected from the same sampling location and depth, using the
same equipment and sampling procedures.
Field QA/QC samples were obtained and submitted for analysis for use in assessing the quality
of the data that resulted from the field sampling program. No equipment blank samples were
necessary since samples were collected using disposable sampling equipment. However,
because of the extremely low detection levels of PFAS analysis, equipment blanks were collected
from the HDPE and silicone tubing used for groundwater sampling for PFAS analysis only.
2.4. FIELD MEASUREMENTS AND RECORDKEEPING
Sampling activities were documented in a logbook or on field data collection forms using indelible
ink in accordance with the FSP and QAPP Addendum (Tetra Tech 2021a, 2021b). The header of
each logbook page included the site location name, date, and TO number. At the start of each
day, the weather, site conditions, field staff present, subcontractors present, and any safety or
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other meetings conducted were noted. The collection time, sample identification number, sample
depth (if appropriate), sampling location description, field observations, sampler's name, and time
of sample collection were recorded in the logbook or on field data sheets for each sample.
MS/MSD and field duplicate samples were clearly designated in the logbook or on the field data
sheet. Collection of rinsate samples and preparation of trip blanks were documented and collected
in the same manner as described in Section 2.2.4.
Each page of the field logbook was dated, numbered (if appropriate), and signed at the bottom
by START personnel. Any residual space on the last page of each day's log was crossed out with
a single line. Each new sampling day began on a new page in the logbook. Any corrections made
during the same day of sampling were crossed out with one single line, "back note." If necessary,
corrections or additions were made on a subsequent page with appropriate documentation,
although this procedure is not recommended. Corrections or additions are best made on the same
day as sampling. The field team leader ensured that all documentation in the logbook was done
appropriately and accordingly and checked the logbook daily.
All field logbooks were always kept secure by the field team leader during field work. As soon as
possible, all field logbooks were scanned electronically. If electronic scans could not be conducted
after 1 week of continuous field work, high-resolution hard copies were made and kept secure
until the logbooks could be scanned. All completed field books and any hard copies were stored
with the project manager. Field data records were maintained in accordance with the Multi-Media
Investigation Manual and Procedures (EPA 1992), Worksheet 29 of the START VQAPP, Revision
3 (Tetra Tech 2022), and the START FSP, Revision 3 (Tetra Tech 2021a).
2.5. DECONTAMINATION PROCEDURES
This section describes the decontamination procedures that START followed for all field sampling
activities associated with the Shiawassee River Superfund site assessment. Soil, groundwater,
and sediment were sampled using dedicated or disposable equipment; therefore,
decontamination of this equipment was not necessary. If dedicated or disposable sampling
equipment were not used, general decontamination procedures are described below.
2.5.1. Decontamination of Drilling Equipment
All downhole drilling rods used to advance borings and install monitoring wells were
decontaminated before initial drilling and after drilling at each location. The equipment was
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decontaminated following the general practices presented in the site-specific FSP and QAPP
(TetraTech 2021a, 2021b).
To prevent cross-contamination, all non-dedicated or non-disposable soil, groundwater, and
sediment sampling equipment was decontaminated before sample collection began and after
sampling at each location. In accordance with the general decontamination guidelines for
sampling equipment documented in the FSP, stainless steel sampling equipment was
decontaminated using a three-tier process including a Liquinox wash, a potable water rinse, and
a distilled and deionized (Dl) water rinse (Tetra Tech 2021a). All water derived from
decontamination was collected and temporarily stored in DOT-approved, 55-gallon drums or
polyethylene tanks on site for characterization. In lieu of stainless-steel sampling equipment,
disposable sampling equipment was used to collect individual samples and to eliminate the need
to decontaminate equipment and generate decontamination water.
All water derived from decontamination was collected and temporarily stored in DOT-approved,
55-gallon drums or polyethylene tanks on site or at a designated area on city or county property,
as detailed in the site management plan (Tetra Tech 2021c), for characterization and disposal.
Disposable sampling equipment (such as tubing, nitrile gloves, and plastic trowels) and personal
protective equipment (PPE) were double-bagged and disposed of as dry, industrial waste.
2.6. DISPOSAL OF INVESTIGATION-DERIVED WASTE
Investigation-derived waste (IDW) is waste generated from an activity associated with determining
the nature and extent of contamination during the investigation. IDW may include any hazardous
waste, media (soil and groundwater), and debris that contains listed hazardous waste or that
exhibits a characteristic of a hazardous waste. IDW may also include media and debris that are
not hazardous, but that are contaminated with hazardous constituents.
To the extent possible, drilling and sampling techniques that minimize the volume of IDW
generated were used during all sampling activities. For example, groundwater samples were
collected using low-flow techniques, which reduced the volume of purge water from each well.
IDW generated during the field sampling activities included soil extracted during drilling borings;
purge water from groundwater sampling; and wastewater from decontamination and equipment
rinsate procedures. All IDW was removed from specific work sites and managed at a central,
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secure location. All IDW generated during investigation activities was sampled, characterized,
and properly disposed.
All water or soil generated during site activities was contained in drums and stored separately.
Drummed materials were clearly marked to indicate the date of collection, sample or boring
location where the material originated, waste contents, and other generator information. A
completed "waste material" label was affixed to the exterior side of each drum before DOT
classification that included the site name, address, contents, boring or well depths, operation,
accumulation date, and consultant phone number information. All information was completed for
each drum. Before off-site disposal, the drums were relabeled with DOT identification and
classification information.
All IDW was disposed of as required by state and local regulations after waste characterization
analytical results were received for IDW soil and water. Additional IDW generated from site
assessment activities included disposable PPE and sampling equipment. Disposable PPE and
sampling equipment were managed according to the level of contamination encountered during
field activities. In general, PPE and sampling equipment were managed as non-hazardous solid
waste, particularly if little contact occurs with the sampling medium and low levels of contaminants
were involved. Nonhazardous PPE and sampling equipment waste was double bagged and
disposed of as dry, industrial waste.
2.7. ANALYTICAL METHODOLOGY
Table 2 below summarizes the laboratory methods that were used to analyze the various sample
media collected by START. Samples collected during the field investigation were analyzed for
chemical analysis by either the ASB Region 5 laboratory, a CLP laboratory, or subcontracted
laboratories.
Table 2 - Analytical Methods Summary
Parameter
Laboratory
Laboratory Location
Analytical
Method
SOIULANDSCAPING MATERIAL SAMPLES
PCBs
CHEMTEX (CLP)
Port Austin, Texas
SW-846: 8082A
TAL Metals
Eurofins TestAmerica
Burlington, Vermont
200.8/6020B
Hexavalent
Chromium
ASB
Chicago, Illinois
SW-846: 3060A
and 7199
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Parameter
Laboratory
Laboratory Location
Analytical
Method
VOCs
(Soils only)
CHEMTEX (CLP)
Chemtech Consulting Group (CLP)
Port Austin, Texas
Mountainside, New Jersey
SW-846: 8260C
SEDIMENT SAMPLES
PCBs
CHEMTEX (CLP)
Port Austin, Texas
SW-846: 8082A
WIPE SAMPLES
PCBs
CHEMTEX (CLP)
Port Austin. Texas
SW-846: 3580A
AMBIENT AIR SAMPLES
PCBs
Eurofins TestAmerica
Burlington. Vermont
TO-10A
INDOOR AIR SAMPLES
VOCs
ASB
ALS Environmental
Chicago, Illinois
Simi Valley, California
TO-15
GROUNDWATER SAMPLES
1,4-Dioxane
CHEMTEX (CLP)
Port Austin, Texas
522
PFAS
ALS Environmental
Holland, Michigan
537.1
VOCs
CHEMTEX (CLP)
Chemtech Consulting Group (CLP)
Port Austin, Texas
Mountainside, New Jersey
SW-846: 8260C
SOIL GAS SAMPLES
VOCs
ASB
Chicago. Illinois
TO-15
SUB-SLAB SOIL VAPOR SAMPLES
VOCs
ASB
ALS Environmental
Chicago, Illinois
Simi Valley, California
TO-15
Notes:
ASB Analytical Services Branch
CLP Contract Laboratory Program
PCB Polychlorinated biphenyl
PFAS Per- and polyfluoroalkyl substances
TAL Target analyte list
VOC Volatile organic compound
As required in the QAPP, START conducted data validation on all data generated from non-CLP
laboratories, and all data were deemed useable for the purposes of the project with qualifiers
assigned as appropriate, with the exception of VOC analysis of soil samples collected in October
2021 that were analyzed beyond hold times (Tetra Tech 2021b). All data validation reports
generated during this assessment are provided in Appendix J. The laboratory analytical results
for all samples are summarized in Tables 1 through 10 of Appendix B. The full laboratory analytical
reports for the samples are provided in Attachment 1.
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3. ENVIRONMENTAL SETTING
This section describes the regional physiography, regional geology and hydrogeology, and site-
specific geology and hydrogeology.
3.1. REGIONAL PHYSIOGRAPHY
According to elevation survey work completed during site activities, the site elevation is
approximately 887 feet above mean sea level. The site is relatively level.
3.2. REGIONAL GEOLOGY AND HYDROGEOLOGY
"Bedrock Geology of Michigan" indicates that the bedrock of the site is the Saginaw formation of
the Michigan Basin from the Pennsylvanian Era (University of Michigan 2003).
The U.S. Department of Agriculture (USDA) Natural Resource Conservation Service (NRCS)
identifies the surficial soils as either Oakville fine sand, or Spinks-Oakville loamy sands (USDA
2011).
The groundwater in the region is expected to flow southeast towards the Detroit River.
3.3. SITE GEOLOGY AND HYDROGEOLOGY
The general geologic profile of the site consists of fill comprised of gravel and brown medium-
grained sand to between 3 and 10 feet bgs. Below that continued brown medium-grained sands
to 20 feet bgs. In some borings, brown silty clay seams were first encountered between 5 and 13
feet bgs. Groundwater at the site was encountered between 9 and 20 feet bgs. Site groundwater
generally flows to the west, toward the Shiawassee River (Figure 4A and 4B, Appendix A).
Groundwater at the west adjoining property generally flows to the east, toward the Shiawassee
River (Figure 4B, Appendix A).
The groundwater temperature at the site ranged between 13.33 and 21.75 degrees Celsius. To
generate the most-stringent site-specific EPA Vapor Intrusion Screening Levels (VISL), a
groundwater temperature of 21.75 degrees Celsius was input into the EPA VISL calculator.
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4. RESULTS
The results of the assessment activities are described in this section. The laboratory data
packages are provided as Attachment 1, the input parameters used for the EPA screening level
calculators are included in Appendix C, and the laboratory data validation reports are provided in
Appendix J.
4.1. PCBS AND METALS INVESTIGATION
This section includes the results from the PCBs and Metals investigative activities.
4.1.1. Soil Sampling
Soil samples were analyzed for PCBs, and 25 percent of samples were also analyzed for TAL
metals, and chromium VI. The PCB results were compared with the site-specific Long-Term
Cleanup Goal (LTCG) of 10,000 |jg/kg (microgram per kilogram). Metals results were compared
to both the EGLE Part 201 Generic Nonresidential Direct Contact Criteria (DCC), and the EPA
Composite Worker Regional Screening Level (RSL) based off a hazard quotient (HQ) of 1, and a
target cancer risk (TR) of 10E-5 (EGLE 2018, EPA 2022). Since landscaping material is being
distributed to residences, soil results from landscaping materials were compared to both EGLE
Part 201 Generic Residential DCC and EPA Residential RSLs.
Field screening of PCBs in soil samples showed the following samples to be above the LTCG: six
of the eight land clearing samples, eight of the 13 of north portion shallow samples, both samples
in FL-03, the shallow sample in the northern wetland, three of the 12 former lagoon ditch samples,
and all 40 restricted area ditch samples. Compared to the laboratory results for PCBs, the field
screening results for PCBs were orders of magnitude higher, and are not reliable results. Field
screening of metals in soil samples showed five samples that exceeded the EPA Composite
Worker RSL for zirconium. Soil sample field screening results for both PCBs and metals are
summarized in Table 12 of Appendix B.
The analytical results for soil samples are summarized in Tables 1A through 2B of Appendix B.
Figures 5A through 5E in Appendix A show sample locations and associated detections. There
were no PCBs or metals exceedances in soil samples, with the exception of soil from the
landscaping material location LM-20. Soil results for LM-20 showed a manganese detection of
2,500 milligrams per kilogram (mg/kg), above the EPA Residential RSL of 1,830 mg/kg; however,
the detection was within the EPA Common Concentration Range of 20 to 3,000 mg/kg.
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Triplicate samples were collected for the following decision units to determine the repeatability of
the sampling methodology: LC-02, LC-03, FL-01, FL-03, NP-05, and NP-08. For those samples,
a letter was added to the decision unit number denoting the unique triplicate sample. Nine of the
12 triplicate sample sets met the precision criteria of 30 percent. The triplicate sample sets that
did not meet the precision criteria were FL01-00.06, FL03-00.06, and NP05-06.24.
Method detection limits for soil were within the limits for the method approved in the QAPP
addendum (Tetra Tech 2021b). The data were qualified based on the validation, and all data are
deemed useable (Appendix J).
4.1.2. Outfall Sampling
The analytical results for PCB Aroclors in the nine outfall soil samples are summarized in Table
1A of Appendix B. No PCB Aroclors were detected in any of the outfall soil samples. The 19 wipe
samples collected at eight site outfalls were analyzed for PCB Aroclors. No PCB Aroclors were
detected in any of the outfall wipe samples.
The CLP laboratory report is included in Attachment 1. All data were deemed useable and were
qualified as needed.
4.1.3. Sediment Sampling
The PCB Aroclor results for the five discrete sediment samples collected from the north retention
pond are summarized in Table 1A of Appendix B. No PCB Aroclors were detected in any of the
retention pond sediment samples.
The CLP laboratory report is included in Attachment 1. All data were deemed useable as reported
by the laboratory.
4.1.4. Ambient Air
Perimeter ambient air samples were analyzed for PCB Aroclors, the results of which are provided
in Table 4 of Appendix B. No PCB Aroclors were detected in any of the perimeter ambient air
samples.
The associated data validation report is included in Appendix I. All data were deemed useable as
reported by the laboratory.
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4.2. VAPOR INTRUSION INVESTIGATION
This section includes the results from the vapor intrusion investigative activities.
4.2.1. Soil Sampling
The analytical results for VOCs in soil samples are summarized in Table 5 of Appendix B, and
Figure 5E in Appendix A is a map showing locations and associated sample detections. Soil
sample VOC results were compared to the EGLE Part 201 Generic Residential Drinking Water
Protection Criteria (DWPC), EGLE Residential Volatilization to Indoor Air Pathway Screening
Level (VIAPSL) for Soil, and the EPA Soil to Groundwater RSLs based off an HQ of 1, and a TR
of 10E-5 (EGLE 2018, EPA 2023).
The 10 soil samples collected in October 2021 were analyzed for VOCs. Though the laboratory
received the samples well before the method holding time, the samples were analyzed by the
laboratory after the method holding time. As a result, all non-detect results from that sampling
event were rejected. VOC detections in the soil samples included:
• Methyl acetate concentration in sample location SB-05 below the EGLE DWPC, EGLE
VIAPSL, and the EPA RSL.
• TCE concentration in sample location SB-17 above the EGLE DWPC, EGLE VIAPSL, and
the EPA RSL.
To obtain usable data, in August 2022 the 10 soil samples were recollected and analyzed for
VOCs. VOC detections in the soil samples included:
• Methyl acetate concentration at sample location SB-05 below EGLE DWPC and EPA RSL.
• Toluene concentrations at sample locations SB-01E and SB-22 above the EPA RSL.
Toluene was also detected in sample location SB-17 at a concentration below the EGLE
DWPC, EGLE VIAPSL, and the EPA RSL.
The CLP laboratory reports are included in Attachment 1. All data from the samples collected in
August 2022 were deemed useable and were qualified as needed.
4.2.2. Groundwater Sampling
The analytical results for VOCs, 1,4-dioxane, and PFAS in groundwater samples are summarized
in Table 5 of Appendix B, and Figures 5F and 5G in Appendix A show sample locations and
associated chlorinated VOC and PFAS detections, respectively. The site water table varied
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between 8.5 and 20 feet bgs. Groundwater VOC (including 1,4-dioxane) and PFAS results were
compared to the EGLE Part 201 Generic Residential Drinking Water Criteria (DWC); EPA
Residential VISL for Groundwater based off a groundwater temperature of 21.75 degrees Celsius,
an HQ of 1, and a TR of 10E-5; and the EPA Residential Tapwater RSLs based off an HQ of 0.1,
and a TR of 10E-5. Groundwater PFAS results were also compared with the EGLE Drinking Water
Maximum Contaminant Levels (MCL).
The 15 groundwater samples collected in October 2021 were analyzed for VOCs, 1,4-dioxane,
and PFAS. The 20 groundwater samples collected in August 2022 were analyzed for VOCs.
Exceedances in the groundwater samples included:
• Cis- 1,2-DCE concentration at sample location TW-17 above the EGLE DWPC, EPA VISL,
and the EPA RSL. The c/'s-1,2-DCE concentration at sample location TW-44 was above
both the EGLE DWPC and the EPA RSL.
• TCE concentrations at sample locations TW-17, TW-42, and TW-44 above the EGLE
DWPC, EPA VISL, and the EPA RSL.
• VC concentrations at sample locations TW-17 and TW-44 at concentrations above the
EGLE DWPC, EPA VISL, and the EPA RSL. VC at sample location TW-28 was above the
EPA RSL.
• Perfluorooctanoic acid (PFOA) at sample locations TW-12, TW-15NW, TW-28, TW-44 at
concentrations above the EGLE DWC and EGLE MCL.
The data validation report for the PFAS data is provided in Appendix I, and the CLP laboratory
reports for the 1,4-dioxane and VOC results are included in Attachment 1. All groundwater data
were deemed useable and were qualified as needed.
4.2.3. Soil Gas Sampling
The analytical results for VOCs in soil gas and ambient air samples are summarized in Tables 7
and 10 of Appendix B, respectively. Figures 6A through 6C in Appendix A are maps showing
sample locations and associated chlorinated VOC detections along with VOC exceedances for
individual sampling events.
The CLP laboratory reports are included in Attachment 1. All soil gas and ambient air data were
deemed useable and were qualified as needed.
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Soil Gas Results
Soil gas VOC results were compared to the EGLE Nonresidential VIAPSL for Soil Vapor and the
EPA Commercial VISL for Soil Gas based on a groundwater temperature of 21.75 degrees
Celsius, an HQ of 1, and a TR of 10E-5 (EGLE 2013, EPA 2023). Soil gas sampling events
occurred in October 2021, March 2022, and May 2022. During each event, between 37 and 39
soil gas samples were collected for VOCs analysis. VOC exceedances in the soil gas samples
included:
• C/s- 1,2-DCE concentration at sample location SG-17 above the EGLE VIAPSL and EPA
VISL. C/s- 1,2-DCE was present at sample location SG-19 at a concentration above the
EGLE VIAPSL.
• PCE concentration at sample locations SG-19 and SG-29 above the EGLE VIAPSL.
• TCE concentrations at ten sample locations (SG-16, SG-17, SG-18, SG-19, SG-20, SG-
33, SG-34, SG-35, SG-36, and SG-37) above both the EGLE VIAPSL and the EPA VISL.
TCE concentrations at sample locations SG-30 and SG-31 were above the EGLE VIAPSL.
• Acrolein concentration at sample location SG-31 above both the EGLE VIAPSL and EPA
VISL. The acrolein concentration at sample location SG-24 was above the EGLE VIAPSL.
• Naphthalene concentration at sample location SG-09 above the EGLE VIAPSL.
Detected concentrations of chlorinated VOCs were generally highest in the samples collected
during the October 2021 sampling event.
4.2.4. Sub-Slab Soil Gas and Indoor Air Sampling
The analytical results for VOCs in sub-slab soil gas and indoor air samples are summarized in
Tables 8 and 9 of Appendix B, respectively. Figure 5H in Appendix A is a map showing sample
locations and associated chlorinated VOC detections along with VOC exceedances.
The data validation reports are provided in Appendix J, and laboratory reports are included in
Attachment 1. All sub-slab soil gas, indoor air, and ambient air data were deemed useable and
were qualified as needed.
Sub-Slab Soil Gas Results
Sub-slab soil gas VOC results were compared to the EGLE Nonresidential VIAPSL for Soil Vapor
and the EPA Commercial VISL for Soil Gas based on a groundwater temperature of 21.75
degrees Celsius, an HQ of 1, and a TR of 10E-5 (EGLE 2013, EPA 2023).
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Fourteen sub-slab soil gas samples were collected for VOCs analysis during each of the sampling
events that took place in July 2022 and January 2023. VOC exceedances in the sub-slab soil gas
samples included:
• 1,1,2-trichloroethane (TCA) concentration at sample location SS-11 (duplicate) above the
EGLE VIAPSL.
• PCE concentration at sample location SS-11 above both the EGLE VIAPSL and the EPA
VISL. PCE concentrations at sample locations SS-04, SS-05, and SS-07 were above the
EGLE VIAPSL and the EPA VISL
• TCE concentrations at five sample locations (SS-01, SS-03, SS-07, SS-10, and SS-11)
above both the EGLE VIAPSL and the EPA VISL. The TCE concentration at sampling
location SS-04 was above the EGLE VIAPSL.
• Acrolein concentration at sample location SS-09 above the EGLE VIAPSL.
• Chloroform concentrations at sample locations SS-07 and SS-11 above both the EGLE
VIAPSL and EPA VISL.
Detected concentrations of chlorinated solvents in sub-slab soil gas were generally highest in the
samples collected during the July 2022 sampling event.
Indoor Air Results
Indoor air sample results during sub-slab soil gas sampling events are included in Table 9 of
Appendix B. Indoor air VOC results were compared to the EGLE Nonresidential Recommended
Interim Action Screening Level RIASL for Indoor Air and the EPA Composite Worker Air RSL for
air based on a groundwater temperature of 21.75 degrees Celsius, an HQ of 1, and a TR of 10E-
5 (EGLE 2020, EPA 2023).
Twenty-four indoor air samples were collected for VOCs analysis at each sampling event in July
2022 and January 2023. VOC exceedances in the indoor air samples included:
• 1,4-Dichlorobenzene (DCB) concentration at sample location IA-14 above both the EGLE
RIASL and EPA RSL.
• Acrolein concentrations at sample locations IA-07 and IA-13 above the EPA RSL.
• Chloroform concentrations at six sample locations at (IA-01, IA-02, IA-03, IA-04, IA-08,
and I A-15) above both the EGLE VIAPSL and EPA RSL.
Trans- 1,2-DCE, PCE, and TCE were detected in indoor air, but at concentrations below EGLE
RIASL and EPA RSLs. TCE concentrations at sample locations IA-10 and IA-11 were 1.4
micrograms per cubic meter (|jg/m3) and 1.8 |jg/m3 respectively - just below the EGLE RIASL of
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2.0 |jg/m3. It is possible that concentrations at those locations could increase over time and cause
an indoor air health risk. The following dynamic factors could increase indoor air concentrations
over time: groundwater contamination migration, groundwater table elevation fluctuations,
seasonal conditions, and worsening building deterioration.
4.2.5. Ambient Air Sampling
Ambient air VOC results were compared to the EGLE Nonresidential Recommended Interim
Action Screening Level (RIASL) for Indoor Air and the EPA Composite Worker Air RSL for air
based on a groundwater temperature of 21.75 degrees Celsius, an HQ of 1, and a TR of 10E-5
(EGLE 2020, EPA 2023). VOC exceedances in ambient air samples included:
• The ambient air sample collected at AA-25 in October 2021 had an acrolein detection
above the EPA RSL.
• Ambient air samples collected at AA-12 and AA-25 in May 2022 contained chloroform at
concentrations exceeding the EGLE RIASL; chloroform concentrations exceeded the EPA
RSL in AA-12.
Ambient air sample results during soil gas, sub-slab soil gas, and indoor air sampling events are
included in Table 10 of Appendix B.
4.3. QUALITY ASSURANCE/QUALITY CONTROL
The QA/QC sample results were evaluated as part of the data review process. START prepared
a laboratory data validation report, which is included in Appendix J. All data were deemed useable
and qualified as needed.
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5. SUMMARY AND RECOMMENDATIONS
From August 13, 2021 through January 5, 2023, START conducted site assessment activities for
both the site and the west adjoining property. The site is located at 2440 West Highland Road, in
Howell, Livingston County, Michigan. As requested by EPA, START completed and documented
the assessment activities involving both a PCBs and metals investigation and a vapor intrusion
investigation.
The field investigation included: (1) drilling approximately 250 soil borings for soil sampling; (2)
collecting 40 MIP profiles; (3) installation and sampling of 20 temporary monitoring wells; and (3)
installation and sampling of 40 soil gas probes; (4) installation of 13 vapor pins and sampling sub-
slab soil gas; and (5) sampling indoor air, ambient air and perimeter ambient air. The following
sections summarize findings related to both the PCBs and metals investigation, and the vapor
intrusion investigation.
5.1. PCBS AND METALS INVESTIGATION
From the various composite and discrete soil samples collected from the approximate 250 soil
borings, and seven landscaping material areas - all PCB Aroclor detections were below the site-
specific LTCG of 10,000 |jg/kg. For metal results in soils, only one manganese detection
exceeded EPA RSL, but the value was within EPA's Common Concentration Range.
PCB Aroclors were not detected in any perimeter air samples, or in soil and wipe samples
collected from the eleven site outfalls.
5.2. VAPOR INTRUSION INVESTIGATION
Ten soil samples were collected for VOC analysis along the perimeter of the site building. Soil
results at three locations contained VOCs at concentrations above either EGLE DWC or EPA
RSLs.
Twenty temporary monitoring wells were installed both on- and off-site. Groundwater samples
were collected for analyses of VOCs, 1,4-dioxane, and PFAS. The site water table varied from 9
to 20 feet bgs. Groundwater results at six monitoring wells showed chlorinated VOCs (c/s-1,2-
DCE, TCE, and VC) above either the EGLE DWC or the EPA RSLs; and four monitoring wells
showed detections of PFOA above the EGLE GSIC.
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Forty temporary soil gas probes were installed along the perimeter of the site building. Three
rounds of soil gas samples were collected for analyses of VOCs. Soil gas results at 14 soil gas
probes showed VOCs (acrolein, cis- 1,2-DCE, naphthalene, PCE, and TCE) above either the
EGLE VIAPSL or the EPA VISL.
Thirteen temporary vapor pins were installed throughout the site building. Two rounds of sub-slab
soil gas samples were collected for analyses of VOCs. Sub-slab soil gas results at eight vapor
pins showed VOCs (acrolein, chloroform, cis- 1,2-DCE, PCE, 1,1,2-TCA, and TCE) above either
the EGLE VIAPSL or the EPA VISL.
Two rounds of indoor air samples were collected for analyses of VOCs. The indoor air samples
were collocated with the sub-slab soil gas samples. Indoor air results at nine locations showed
VOCs (1,4-DCB, acrolein, and chloroform) above either the EGLE RIASL or the EPA RSL. TCE
concentrations in indoor air at two sample locations (IA-10 and IA-11) were just below the EGLE
RIASL.
Ambient air samples were collected for analysis of VOCs during the three soil gas sampling
events, as well as the two sub-slab soil gas/indoor air sampling events. One ambient air sample
collected during the soil gas sampling event in October of 2021 had an acrolein detection above
the EGLE RIASL.
5.3. CONCLUSIONS AND RECOMMENDATIONS
Based on the data obtained during PCB and metals investigation activities - the previous land
clearing and regrading activities that have occurred at the site have not resulted in a direct contact
risk for PCBs or metals in shallow site soils or landscaping materials. Additionally, PCBs were
not detected in perimeter ambient air, therefore, no off-site inhalation risk associated with PCBs
was identified.
There is a vapor intrusion risk at the site building. Elevated VOC concentrations in sub-slab soil
gas, along with the presence of the same VOCs in indoor air, suggest that soil gas is infiltrating
the site building. Additionally, indoor air concentrations of TCE are just below the EGLE RIASL
presently, however those concentrations could increase over time. The following dynamic factors
could increase indoor air concentrations over time: groundwater contamination migration,
groundwater table elevation fluctuations, seasonal conditions, and worsening building
deterioration.
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It is recommended that a sub-slab depressurization system be installed in the building to generate
a pressure gradient in areas surrounding SS-10 and SS-11, as those locations showed TCE
exceedances in sub-slab soil gas, as well as TCE concentrations in indoor air just below the EGLE
RIASL.
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6. REFERENCES
AKT Peerless. 2010. "Baseline Environmental Assessment" for Lucy Road Resources, LLC.
June.
Michigan Department of Environment, Great Lakes, & Energy (EGLE). 2018. Cleanup Criteria
Requirements for Response Activity. June.
https://www.niichigan.gov/egle/aboyt/Organization/Remediation-and-
Redevelopment/Remediation-and-lnvestiaation/cleanup-criteria
EGLE. 2013. Guidance Document for the Vapor Intrusion Pathway. May.
https://www.michiaan.aov/documents/dea/deq~rrd~VIGuidanceDoc~
Mav2Q13 422550 7.pdf
EGLE. 2020. "Volatilization to Indoor Air - Recommendations for Interim Action Screening
Levels and Time-Sensitive Interim Action Screening Levels." December.
https://www.michigan.goV/-/media/Proiect/Websites/egle/Documents/Groups/TSG
/Subcommittee-and-Workgroup-Reports/presentation-2020-12-volatilization-indoor-
air. Pdf?rev=47cbad9a333d43c7989a05307810bd45
Tetra Tech, Inc. (Tetra Tech). 2021a. "Field Sampling Plan - Revision 3. Shiawassee River
Superfund Site. Howell, Livingston County, Michigan." August.
Tetra Tech. 2021b. "Quality Assurance Project Plan Addendum - Revision 3. Shiawassee River
Superfund Site. Howell, Livingston County, Michigan." August.
Tetra Tech. 2021c. "Site Management Plan - Revision 1. Shiawassee River Superfund Site.
Howell, Livingston County, Michigan." June.
Tetra Tech. 2022. "Quality Assurance Project Plan (QAPP) for Superfund Technical
Assessment and Response Team (START) Region 5." Revision 4. August.
U.S. Environmental Protection Agency (EPA). 2009. "Five-Year Report for Shiawassee River
Superfund Site, Howell, Michigan." August.
EPA. 2014. "Five-Year Report for Shiawassee River Superfund Site, Howell, Michigan." August.
EPA. 2019a. "Five-Year Report for Shiawassee River Superfund Site, Howell, Michigan."
August.
EPA. 2019b. "Draft Sampling and Analysis Plan Onsite Upland Soil Sampling; Run-Off and
Drainage Sampling Shiawassee River Superfund Site, Howell, Ml." December.
EPA. 2020. CLP Guidance for Field Samplers, https://www.epa.gov/sites/production/files/2021-
03/documents/samplers guide dp guidance for field samplers november 2020 pdf
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EPA. 2023. Regional Screening Levels (RSLs) - Generic Tables. November.
https://www.epa.gov/risk/regional-screening-levels-rsls-generic4ables
University of Michigan. 2003. "Bedrock Geology of Michigan." Geological and Natural History
Survey.
U.S. Department of Agriculture (USDA). 2011. "Web Soil Survey - Livingston County,
Michigan." https://websoilsurvev.nrcs.usda.aov/app/WebSoilSurvev.aspx
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APPENDIX A. FIGURES
Figure 1
Figure 2
Figure 3A
Figure 3B
Figure 3C
Figure 3D
Figure 3E
Figure 3F
Figure 3G
Figure 3H
Figure 31
Figure 4A
Figure 4B
Figure 5A
Figure 5B
Figure 5C
Figure 5D
Figure 5E
Figure 5F
Figure 5G
Figure 5H
Figure 6A
Figure 6B
Figure 6C
Site Location Map
Site Layout Map
Soil and Perimeter Air Sample Location Map - Land Clearing
Soil Sample Location Map - Former Lagoons / North Wetland
Soil Sample Location Map - Former Lagoon Ditches
Soil Sample Location Map - Northern Portion and Restricted Area Ditch
Sediment/Soil/Wipe Sample Location Map - Retention Pond and Northern
Outfalls
Sediment/Soil/Wipe Sample Location Map - Western Outfalls
Landscape Materials Sample Location Map
Soil/Groundwater Sample Location Map
MlP/Soil Gas/Ambient Air Sample Location Map
Groundwater Elevation Map - October 2021
Groundwater Elevation Map - August 2022
Soil PCB Detections Map - Former Lagoons/North Wetland
Soil PCB Detections Map - Former Lagoon Ditches
Soil PCB Detections Map - Northern Portion and Restricted Area Ditch
Landscape Materials PCB Detections and Metal Exceedances Map
Soil VOC Detections Map
Groundwater Chlorinated VOC Detections Map
Groundwater PFAS Detections Map
Sub-Slab Soil Gas/Indoor Air Chlorinated VOC Detections and VOC
Exceedances Map
Soil Gas/Ambient Air Chlorinated VOC Detections and VOC Exceedances
Map - October 2021
Soil Gas/Ambient Air Chlorinated VOC Detections and VOC Exceedances
Map - March 2022
Soil Gas/Ambient Air Chlorinated VOC Detections and VOC Exceedances
Map - May 2022
Appendix A
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Figure 1
Site Location Map
TETRA TECH
Source: USGS 7.5 Minute Topographic Quadrangle Map:
Howell, Ml 1983
Prepared For: US EPA
Date Saved: 7/20/2020
EPA Contract No.: 68HE0519D0005
TO/TOLIN: 68HE0520F0065
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Figure 2
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TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
Date Saved: 7/20/2020
EPA Contract No.: 68HE0519D0005
TO/TOLIN: 68HE0520F0065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
-------
Legend
Air Sample Location (PCB analysis only)
# Composite Soil Sample
• Composite Triplicate Soil Sample
~ Land Clearing Boundary
Date Saved: 2/23/2022
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
Figure 3A
Soil and Perimeter Air Sample
Location Map - Land Clearing
TETRA TECH
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Prepared For: US EPA
Prepared By: Tetra Tech
-------
Date Saved: 2/23/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: 68HE0520F0065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 3B
Soil Sample Location Map
Former Lagoon/Northern Wetland
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
Legend
# Aliquot Location for Composite Soil Sample
# Aliquot Location for Composite Triplicate Soil Sample
Former Lagoon Ditch Boundary
~ Northern Portion Boundary J-A
NW-01-01
-------
Date Saved: 2/23/2022 EPA Contract No.: 68HE0519D0005 TO/TOLIN: F0031-B065 Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
-------
Date Saved: 2/23/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: 68HE0520F0065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
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2440 W. Highland Road
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Legend
Discrete Interval Soil Samples
# Aliquot Location for Composite Soil Sample
• Aliquot Location for Composite Triplicate Soil Sample
~ Northern Portion Boundary
Ditch Boundary
Figure 3D
Soil Sampling Location Map
Northern Portion and Ditch
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
-------
Legend
# RP Points Discretes - (5)
Outflow Drain
Former Lagoon/Wetland area
OF = Outfall
RP = Retention Pond
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 3E
Sediment/Soil/Wipe Sampling Location Map
Retention Pond and Northern Outfalls
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
Date Saved: 2/23/2022
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
-------
Date Saved: 2/23/2022
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
Prepared For: US EPA
Prepared By: Tetra Tech
Legend
Grab Soil arid Wipe Sample at Outfall
# Grab Soil Sample at Outfall
OF = Outfall
OF-01
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Figure 3F
Soil/Wipe Sampling Location Map
Western Outfalls
TETRA TECH
-------
Date Saved: 2/23/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: 68HE0520F0065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
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Prepared For: US EPA
Prepared By: Tetra Tech
-------
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TO/TOLIN: F0031-B065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
Detected
Aroclor
Result
(Mj/kj)
Detected
Aroclor
Result
(Hg/kg)
Long-Term
Cleanup Goal for
Source Property
Soil
Analyte
Legend
Former Lagoon Boundary
~ Northern Portion Boundary
All concentrations provided in micrograms per kilogram (|jg/kg).
Samples were collected from August 23 to September 16, 2021.
bgs Below ground surface
FL Former lagoon
J Value is considered an estimate for quality control reasons.
J+ Value is considered an estimate for quality control reasons, and may be biased high.
PCBs Polvchlorinated biphenyls
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 5A
Soil PCB Detections Map
Former Lagoon/Northern Wetland
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
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mi
LD-05
Depth
(bgs)
Detected
Aroclor
Result
(Mg/kg)
6" - 24"
1248
160 J
rS f
Analyte
Long-Term
Cleanup Goal for
Source Property
Soil
! ota I PCBs
10,000
Depth
(bgs)
0" - 6"
Legend
Former Lagoon Ditch Boundary
All concentrations provided in micrograms per kilogram (pg/kg).
Samples were collected on August 30, 2021.
bgs Below ground surface
J Value is considered an estimate for quality control reasons.
LD Lagoon ditch
PCBs Polychlorinated biphenyls
LD-06
6" - 24"
Detected
Aroclor
Result
(Mg/kg)
1248
60 J
1248
230 J
V
50
r Jfc- J Feet_
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 5B
Soil PCB Detections Map
Former Lagoon Ditches
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
50
Date Saved: 5/9/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: F0031-B065
Coordinate System: NAD 1983 StatePiane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
-------
Legend
Discrete Interval Soil Samples Ditch Boundary Northern Portion Boundary
All concentrations provided in micrograms per kilogram ((jg/kg).
Samples were collected from August 24 to 31, 2021.
bgs Below ground surface
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high.
NP Northern portion
PCBs Polychlorinated biphenyls
RD Restricted ditch
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 5C
Soil PCB Detections Map
Northern Portion and Restricted Ditch
TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
Date Saved: 5/9/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: F0031-B065
Coordinate System: NAD 1983 StatePiane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
-------
Date Saved: 5/9/2022
EPA Contract No.: 68HE0519D0005
TO/TOLIN: F0031-B065
Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
EPA
Residential
Regional
Screening
Levels
Analyte
Aroclor 1248
Crushed Asphalt
Crushed Asphalt-
Brown Sand and Graver
Brown Sand and Gravel
Manganese
Brown Gravel;'StoneTarid.Sa nd 1
Brown Sand and Gravel 1
Large Gravel
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
LEGEND
~ Composite Landscape Material Sample
All concentrations provided in micrograms per kilogram (pg/kg).
Samples collected from September 15 to 16, 2021.
## Red values indicate an exceedance of EPA Residential Regional Screening Level for Soil
(Hazard Quotient 1; Target Risk 10 s), however, the sample concentration is within the EPA
Common Concentration Range for soils,
bgs Below ground surface
J- Value is considered an estimate for quality control reasons, and may be biased low.
LM Landscaping materials
NE Not established
PCBs Polychlorinated biphenyls
Figure 5D
Landscape Materials PCB Detections
and Metal Exceedances Map
H-l TETRA TECH
Prepared For: US EPA
Prepared By: Tetra Tech
-------
TW-15NW
10/18/21
08/16/22
\trans -1,2-DCE
10/18/21
08/16/22
08/16/22
\trans -1,2-DCE
10/19/21
08/16/22
trans-1,2-DCE
10/18/21
08/16/22
10/19/21
08/15/22
10/18/21
08/16/22
\ trans -1,2-DCE
10/19/21 08/15/22
er liter (ng/L).
:ceedance of EPA Residentia I Ta pwater RSL.
!xceedance of EGLE Part 201 Generic Residential DWC.
Shiawassee River Superfund Site
2440 W. Highland Road
Howell, Livingston County, Ml
Figure 5F
Groundwater Chlorinated VOC
Detections Map
It
-V 1
All concentrations provided in micrograms p
## Red values ndicate an e>
## Underlined indicate an €
DCE Dichloroethene
J Value is considered an e
J+ Val ue is considered an e
DWC Drinking Water Criteria
EGLE Michigan Department of
ND Not Detected
RSL Regional Screening Level
PCE Tetrachloroethene
TCE Trichloroethene
VC Vinvl chloride
Legend
Groundwater Sample Locat
Screening Level Exceedanc
Groundwater Sample Locat
Source Property Boundary
Date Saved: 7/11/2023
TO/TOLIN: 0072-0001CB105 Coordinate System: NAD 1983 StatePlane Michigan South FIPS 2113 Feet
Projection: Lambert Conformal Conic
Datum: North American 1983
TETRA TECH
Analyte
c/'s -1,2-DCE
trans -1,2-DCE
EPA
Residential
Tapwater RSL
EGLE Part 201
Generic
Residential
DWC
10/19/21
Prepared For: US EPA
Prepared By: Tetra Tech
-------
Final Assessment Report - Final
Shiawassee River Superfund Site
September 28, 2023
TO-TOLIN: 68HE0520F0065
APPENDIX B. TABLES
Table 1A Soil: Polychlorinated Biphenyls (PCBs) Results
Table 1B Soil: Metals Results
Table 2A Landscaping Materials: Polychlorinated biphenyls (PCBs) Results
Table 2B Landscaping Materials: Metals Results
Table 3 Wipes: Polychlorinated biphenyls (PCBs) Results
Table 4 Perimeter Air: Polychlorinated biphenyls (PCBs) Results
Table 5 Soil: Volatile Organic Compound (VOCs) Results
Table 6 Groundwater: Volatile Organic Compound (VOCs) and Per- and
Polyfluoroalkyl Substances (PFAS) Results
Table 7 Soil Gas: Volatile Organic Compound (VOCs) Results
Table 8 Sub-Slab Soil Gas: Volatile Organic Compound (VOCs) Results
Table 9 Indoor Air: Volatile Organic Compound (VOCs) Results
Table 10 Ambient Air: Volatile Organic Compound (VOCs) Results
Table 11 Monitoring Well Inventory and Groundwater Elevations
Table 12 Soil Field Screening: Metals and Polychlorinated biphenyls (PCBs) Results
Appendix B
TETRA TECH
-------
Table 1A
Soil and Sediment: Polychlorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample Name
Matrix
Location Description
Sample Type
Sample Date
Sample Depth
(bgs)
Result
Detected
Aroclor
Total PCBs
(Hg/kg)
Long-Term Cleanup Goal for Source Property Soil *:
NA
10,000
S R-SO- F L01A-00.06-083021
So
Former Lagoon
Composite
08/30/21
0" - 6"
NA
36 UJ
SR-SO-FL01B-00.06-083021
So
Former Lagoon
Composite
08/30/21
0" - 6"
NA
36 UJ
SR-SO-FLOIC-OO. 06-083021
So
Former Lagoon
Composite
08/30/21
0" - 6"
1248
58 J+
SR-SO-FL01A-06.24-083021
So
Former Lagoon
Composite
08/30/21
6" - 24"
NA
35 UJ
SR-SO-FL01B-06.24-083021
So
Former Lagoon
Composite
08/30/21
6" - 24"
NA
36 UJ
S R-SO-FL01C-06.24-083021
So
Former Lagoon
Composite
08/30/21
6" - 24"
NA
35 UJ
SR-SO-FL01D-06.24-083021
So
Former Lagoon
Composite
08/30/21
6" - 24"
NA
35 UJ
S R-SO-FL03A-00.06-082721
So
Former Lagoon
Composite
08/27/21
0" - 6"
1248
80 J
S R-SO-FL03B-00.06-082721
So
Former Lagoon
Composite
08/27/21
0" - 6"
1248
130 J
SR-SO-FL03C-00.06-082721
So
Former Lagoon
Composite
08/27/21
0" - 6"
1248
130 J
SR-SO-FL03A-06.24-082721
So
Former Lagoon
Composite
08/27/21
6" - 24"
1248
44 J
SR-SO-FL03B-06.24-082721
So
Former Lagoon
Composite
08/27/21
6" - 24"
1248
33 J
S R-SO-FL03C-06.24-082721
So
Former Lagoon
Composite
08/27/21
6" - 24"
NA
35 UJ
SR-SO-FL03D-06.24-082721
So
Former Lagoon
Composite
08/27/21
6" - 24"
NA
36 UJ
SR-SO-LC01-00.06-082321
So
Land Clearing
Composite
08/23/21
0" - 6"
NA
35 U
SR-SO-LC01-06.24-082321
So
Land Clearing
Composite
08/23/21
6" - 24"
NA
35 U
S R-SO-LC02A-00.06-082421
So
Land Clearing
Composite
08/24/21
0" - 6"
NA
35 U
SR-SO-LC02B-00.06-082421
So
Land Clearing
Composite
08/24/21
0" - 6"
NA
37 U
S R-SO-LC02C-00.06-082421
So
Land Clearing
Composite
08/24/21
0" - 6"
NA
35 U
S R-SO-LC02A-06.24-082421
So
Land Clearing
Composite
08/24/21
6" - 24"
NA
35 U
S R-SO-LC02B-06.24-082421
So
Land Clearing
Composite
08/24/21
6" - 24"
NA
35 U
SR-SO-LC02C-06.24-082421
So
Land Clearing
Composite
08/24/21
6" - 24"
NA
40 U
S R-SO-LC02D-06.24-082422
So
Land Clearing
Composite
08/24/21
6" - 24"
NA
34 U
S R-SO-LC03A-00.06-082321
So
Land Clearing
Composite
08/23/21
0" - 6"
NA
34 U
SR-SO-LC03B-00.06-082321
So
Land Clearing
Composite
08/23/21
0" - 6"
NA
34 U
S R-SO-LC03C-00.06-082321
So
Land Clearing
Composite
08/23/21
0" - 6"
NA
34 U
S R-SO-LC03A-06.24-082321
So
Land Clearing
Composite
08/23/21
6" - 24"
NA
34 U
S R-SO-LC03B-06.24-082321
So
Land Clearing
Composite
08/23/21
6" - 24"
NA
34 U
SR-SO-LC03C-06.24-082321
So
Land Clearing
Composite
08/23/21
6" - 24"
NA
36 U
SR-SO-LC04-00.06-082321
So
Land Clearing
Composite
08/23/21
0" - 6"
NA
35 U
SR-SO-LC04-06.24-082321
So
Land Clearing
Composite
08/23/21
6" - 24"
NA
34 U
SR-SO-LD02-00.06-083021
So
Lagoon Ditch
Composite
08/30/21
0" - 6"
NA
35 UJ
SR-SO-LD04-06.24-083021
So
Lagoon Ditch
Composite
08/30/21
6" - 24"
NA
35 UJ
SR-SO-LD04D-06.24-083021
So
Lagoon Ditch
Composite
08/30/21
0" - 6"
NA
34 UJ
SR-SO-LD05-00.06-083021
So
Lagoon Ditch
Composite
08/30/21
0" - 6"
NA
36 UJ
S R-SO-LD05-06.24-083021
So
Lagoon Ditch
Composite
08/30/21
6" - 24"
1248
94 J
SR-SO-LD05D-06.24-083021
So
Lagoon Ditch
Composite
08/30/21
6" - 24"
1248
160 J
SR-SO-LD06-00.06-083021
So
Lagoon Ditch
Composite
08/30/21
0" - 6"
1248
60 J
S R-SO-LD06-06.24-083021
So
Lagoon Ditch
Composite
08/30/21
6" - 24"
1248
230 J
S R-SO-N P01-00.06-082421
So
Northern Portion
Composite
08/24/21
0" - 6"
1248
350
S R-SO-N P01-06.24-082421
So
Northern Portion
Composite
08/24/21
6" - 24"
NA
35 U
S R-SO-N P02-00.06-082421
So
Northern Portion
Composite
08/24/21
0" - 6"
NA
34 U
S R-SO-N P02-06.24-082421
So
Northern Portion
Composite
08/24/21
6" - 24"
NA
34 U
S R-SO-N P03-00.06-082421
So
Northern Portion
Composite
08/24/21
0" - 6"
NA
35 U
1 of 3
-------
Table 1A
Soil and Sediment: Polychlorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample Name
Matrix
Location Description
Sample Type
Sample Date
Sample Depth
(bgs)
Result
Detected
Aroclor
Total PCBs
(Hg/kg)
Long-Term Cleanup Goal for Source Property Soil *:
NA
10,000
SR-SO-NPO3-06.24-082421
Soil
Northern Portion
Composite
08/24/21
6" - 24"
NA
35 U
S R-SO-N P05A-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
34 U
S R-SO-N P05B-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
34 U
S R-SO-N P05C-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
34 U
S R-SO-N P05A-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
39 U
S R-SO-N P05B-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
1248
47 J
S R-SO-N P05C-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
34 U
S R-SO-N P06-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
1254
94 J+
S R-SO-N P06-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
1248
30 J
S R-SO-N P08A-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
35 U
S R-SO-N P08B-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
36 U
S R-SO-N P08C-00.06-082521
Soil
Northern Portion
Composite
08/25/21
0" - 6"
NA
36 U
S R-SO-N P08A-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
41 U
S R-SO-N P08B-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
36 U
S R-SO-N P08C-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
35 U
S R-SO-N P08D-06.24-082521
Soil
Northern Portion
Composite
08/25/21
6" - 24"
NA
36 UJ
S R-SO-N P09-00.06-082621
Soil
Northern Portion
Composite
08/26/21
0" - 6"
1248
450
S R-SO-N PI 1-06.24-082621
Soil
Northern Portion
Composite
08/26/21
6" - 24"
1248
210 J+
S R-SO-N PI 1D-06.24-082622
Soil
Northern Portion
Composite
08/26/21
6" - 24"
1248
420 J+
S R-SO-N P12-00.06-082621
Soil
Northern Portion
Composite
08/26/21
0" - 6"
NA
35 U
S R-SO-N P13-00.06-082621
Soil
Northern Portion
Composite
08/26/21
0" - 6"
NA
35 U
S R-SO-N P13-06.24-082621
Soil
Northern Portion
Composite
08/26/21
6" - 24"
NA
35 U
SR-SO-OFOl-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
47 U
S R-SO-O F02-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
37 U
S R-SO-O F03-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
41 U
S R-SO-O F04-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
45 U
S R-SO-O F05-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
42 U
S R-SO-O F06-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
37 U
S R-SO-O F07-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
44 U
S R-SO-O F08-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
35 U
S R-SO-O F09-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
38 U
S R-SO-O F10-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
48 U
S R-SO-O Fll-091621
Soil
Outfall
Discrete Interval
09/16/21
0" - 6"
NA
71 U
SR-SO-RD-01-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
O'-l'
NA
40 U
SR-SO-RD-01-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
r-3'
1248
270
SR-SO-RD-01-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
1248
130
SR-SO-RD-01-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
NA
38 U
SR-SO-RD-02-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
o'-r
NA
34 U
SR-SO-RD-02-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
NA
34 U
SR-SO-RD-02-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
NA
35 U
SR-SO-RD-02-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
290 J+
SR-SO-RD-03-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
O'-l'
NA
38 U
SR-SO-RD-03-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
1248
220
SR-SO-RD-03-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
1248
1,800 J+
2 of 3
-------
Table 1A
Soil and Sediment: Polychlorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample Name
Matrix
Location Description
Sample Type
Sample Date
Sample Depth
(bgs)
Result
Detected
Aroclor
Total PCBs
(Hg/kg)
Long-Term Cleanup Goal for Source Property Soil *:
NA
10,000
SR-SO-RD-03-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
3,600 J+
SR-SO-RD-04-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
o'-r
1248
74
SR-SO-RD-04-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
r-31
1248
78 J+
SR-SO-RD-04-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
1248
460 J+
SR-SO-RD-04-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
NA
36 U
SR-SO-RD-06-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
o'-r
1260
49
SR-SO-RD-06-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
NA
34 U
SR-SO-RD-06-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
NA
35 U
SR-SO-RD-06-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
480
SR-SO-RD-07-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
o'-r
1260
100 J-
SR-SO-RD-07-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
1248
140
SR-SO-RD-07-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
1248
96
SR-SO-RD-07-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
NA
37 U
SR-SO-RD-08-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
O'-l'
NA
38 U
SR-SO-RD-08-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
NA
36 U
SR-SO-RD-08-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
NA
36 U
SR-SO-RD-08-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
1,500 J+
SR-SO-RD-09-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
0'-l'
NA
37 U
SR-SO-RD-09-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
1260
39
SR-SO-RD-09-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
3'-5'
1248
63
SR-SO-RD-09-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
NA
43 U
SR-SO-RD-10-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
0'-l'
NA
34 U
SR-SO-RD-10-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
NA
34 U
SR-SO-RD-10-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
In
cn
NA
35 U
SR-SO-RD-10-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
43
SR-SO-RD-11-00.01-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
o'-r
1248
260
SR-SO-RD-11-01.03-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
1'-3'
NA
36 U
SR-SO-RD-11-03.05-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
In
cn
1248
39
SR-SO-RD-11-05.07-083121
Soil
Restricted Ditch
Discrete Interval
08/31/21
5'-7'
1248
1,200 J+
S R-SD-RP01-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
44 U
S R-SD-RP02-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
42 U
SR-SD-RP03-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
44 U
SR-SD-RP04-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
44 U
S R-SD-RP05-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
42 U
S R-SD-RP06-00.06-082421
Sediment
Retention Pond
Composite
08/24/21
0" - 6"
NA
40 U
Notes:
All values are provided in micrograms per kilogram (n-g/kg).
## Boldface value indicates that the analyte was detected.
* Long-Term Preliminary Remediation Goal for Source Property Soils referenced in the 2014 Five-Year Review Report determined to be more stringent than
the EGLE Part 201 Generic Nonresidential Direct Contact Criterion of 16,000 |ig/kg.
EGLE Michigan Department of Environment, Great Lakes, and Energy
M-g/kg Micrograms per kilogram
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high.
NA Not applicable
PCB Polychlorinated biphenyl
U The analyte was analyzed for but was not detected above the reported sample quantitation limit.
UJ The analyte was analyzed for but was not detected. The reported quantitation limit is approximate and may be inaccurate or imprecise.
3 of 3
-------
Table IB
Soil and Sediment: Metals Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample ID:
SR-SO-LC02A-
06.24-082421
SR-SO-LC02B-
06.24-082421
SR-SO-LC02C-
06.24-082421
SR-SO-LC02D-
06.24-082422
SR-SO-LC03A-
00.06-082321
SR-SO-LC03B-
00.06-082321
SR-SO-LC03C-
00.06-082321
SR-SO-NP01-
00.06-082421
SR-SO-NP05A-
00.06-082521
EGLE Part 201
Location
Description:
Land Clearing
Land Clearing
Land Clearing
Land Clearing
Land Clearing
Land Clearing
Land Clearing
North Portion
North Portion
EPA Composite
Worker
Generic
Nonresidential
Sample Type:
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Regional
Direct Contact
Sample Date:
08/24/21
08/24/21
08/24/21
08/24/21
08/23/21
08/23/21
08/23/21
08/24/21
08/25/21
Analyte
Screening
Levels (RSL) *
Criteria
(DCC) *
Sample Depth:
(bgs)
6" - 24"
6" - 24"
6" - 24"
6" - 24"
0" - 6"
0" - 6"
0" - 6"
0" - 6"
0" - 6"
Aluminum
NE
370,000
3,200
3,100
3,200
3,300
3,500
3,600
4,500
3,100
4,100
Antimony
467
670
5.7 UJ
6.5 UJ
5.2 UJ
6.0 UJ
5.8 UJ
5.6 UJ
6.1 UJ
6.2 UJ
4.3 UJ
Arsenic
30
37
2.2
1.8
2.1
2.5
3.6
3.8
5.5
2.4
4.7
Barium
21,700
130,000
16 J
15 J
15 J
15 J
28
39
37
19 J
46
Beryllium
2,290
370,000
0.18 J
0.17 J
0.18 J
0.19 J
0.29 J
0.28 J
0.35 J
0.20 J
0.34 J
Cadmium
100
2,100
0.48 U
0.54 U
0.44 U
0.50 U
0.48 U
0.46 U
0.51 U
0.52 U
0.42 J+
Calcium
NE
NE
6,300 J+
4,700 J+
7,900 J+
7,100 J+
65,000 J+
75,000 J+
76,000 J+
11,000 J+
100,000 J+
Chromium, Hexavalent
63
9,200
0.20 UJ
0.20 UJ
0.20 UJ
0.20 UJ
0.40 J
0.40 J
0.20 UJ
0.20 UJ
1.0 J
Chromium, Trivalent ^
1,750,000
1,000,000
6.4
5.3
5.3
5.8
9.0
17
13
6.3
13
Chromium, Total
NE
NE
6.4
5.3
5.3
5.8
9.4
17
13
6.3
14
Cobalt
347
9,000
2.0 J
2.1 J
1.9 J
2.2 J
2.7 J
3.1 J
3.5 J
2.0 J
3.0 J
Copper
46,700
73,000
3.3
3.0
3.3
4.5
13
11
15
4.8
28
Iron
818,000
580,000
mg/kg
5,400
4,800
5,600
6,100
8,600
11,000
11,000
5,300
12,000
Lead
NE
900
2.7
2.3
2.5
2.7
11
13
14
5.2
33
Magnesium
NE
1,000,000
2,300
1,800
2,800
2,700
16,000
11,000
20,000
4,600
41,000
Manganese
25,600
90,000
130 J
100 J
120 J
150 J
290 J
490 J
320 J
91 J
260 J
Mercury
46
580
0.0079 J
0.0078 J
0.0086 J
0.0088 J
0.020 J
0.090 U
0.029 J
0.0073 J
0.0083 J
Nickel
11,100
150,000
5.3
4.7
4.9
5.7
8.6
8.7
12
5.7
12
Potassium
NE
NE
250 J
240 J
240 J
270 J
470 J
750
660
380 J
510
Selenium
5,840
9,600
0.39 J
0.45 J
0.42 J
1.0 J
3.4 U
0.57 J
3.6 U
0.41 J
0.37 J
Silver
5,840
9,000
0.96 U
1.1 U
0.87 U
1.0 u
0.96 U
0.93 U
1.0 u
1.0 U
0.71 U
Sodium
NE
1,000,000
480 U
540 U
440 U
500 U
480 U
460 U
510 U
520 U
360 U
Thallium
12
130
2.1 UJ
1.8 UJ
2.6 UJ
2.0 UJ
1.9 UJ
2.4 UJ
0.40 J-
2.2 UJ
0.27 J-
Vanadium
5,830
5,500
8.1
7.9
9.9
8.9
13
17
18
9.4
19
Zinc
350,000
630,000
14
12
14
15
36
42
49
18
62
Notes:
All values are provided in milligrams per kilogram (mg/kg).
## Boldface value indicates that the analyte was detected.
* Because there were no exceedances of EGLE DCCand EPA RSLs (Hazard Quotient 1; Target Risk 105), EPA Common
Concentration Ranges and EGLE Statewide Default Background Levels were not listed in the table. EPA Common
Concentratoin Ranges can be found in Table 4-2 in the 1992 Remedial Investigation for the site. EGLE Statewide Default
Background Levels are provided in the Part 201 Nonresidential soil criteria tables.
^ Trivalent Chromium values calculated as the difference between Total Chromium and Hexavalent Chromium.
DDC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high,
mg/kg Milligrams per kilogram
NE Not established
RSL Regional Screening Level
U Not detected above listed reporting limit
UJ Not detected above listed reporting limit, which is considered approximate due to deficiencies in one or more quality
control criteria.
1 of 4
-------
Table IB
Soil and Sediment: Metals Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Analyte
EPA Composite
Worker
Regional
Screening
Levels (RSL) *
EGLE Part 201
Generic
Nonresidential
Direct Contact
Criteria
(DCC) *
SR-SO-NP05B-
SamP'elD: 00.06-082521
SR-SO-NP05C
00.06-082521
SR-SO-NP08A
00.06-082521
SR-SO-NP08B
00.06-082521
SR-SO-NP08B
06.24-082521
SR-SO-NP08C-
00.06-082521
SR-SO-NP08D
06.24-082521
SR-SO-NP10-
00.06-082621
SR-SO-FL01A-
00.06-083021
Location
North Portion
Description:
North Portion
North Portion
North Portion
North Portion
North Portion
North Portion
North Portion
Former
Lagoon
Sample Type: Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Sample Date: 08/25/21
08/25/21
08/25/21
08/25/21
08/25/21
08/25/21
08/25/21
08/26/21
08/30/21
Sample Depth:
(bgs)
0" - 6"
0" - 6"
0" - 6"
0" - 6"
6" - 24"
0" - 6"
6" - 24"
0" - 6"
0" - 6"
Aluminum
NE
370,000
mg/kg
4,400
3,700
3,800
5,800
3,200
3,700
3,900
4,800
5,200
Antimony
467
670
4.5 UJ
5.8 UJ
5.9 UJ
6.3 UJ
5.7 UJ
6.1 UJ
6.8 UJ
6.1 UJ
5.6 UJ
Arsenic
30
37
4.6
4.9
3.1
6.3
2.1
3.7
2.6
3.9
5.4
Barium
21,700
130,000
49
48
26
45
16 J
47
20 J
41
44
Beryllium
2,290
370,000
0.33 J
0.31 J
0.37 J
0.40 J
0.19 J
0.47 J
0.23 J
0.44 J
0.40 J
Cadmium
100
2,100
0.58 J+
0.50 J+
0.49 U
0.53 U
0.47 U
0.51 U
0.57 U
0.51 U
0.46 U
Calcium
NE
NE
90,000 J+
76,000 J+
53,000 J+
140,000 J+
16,000 J+
150,000 J+
15,000 J+
110,000 J+
94,000 J+
Chromium, Hexavalent
63
9,200
0.20 UJ
0.20 UJ
0.20 UJ
0.20 J
0.20 UJ
0.20 UJ
0.20 UJ
0.20 UJ
0.20 U
Chromium, Trivalent ^
1,750,000
1,000,000
18
13
8.3
12
6.3
13
6.7
11
16
Chromium, Total
NE
NE
18
13
8.3
12
6.3
13
6.7
11
16
Cobalt
347
9,000
3.1 J
3.0 J
2.3 J
3.5 J
2.0 J
1.9 J
2.3 J
2.8 J
3.8 J
Copper
46,700
73,000
24
20
6.8
13
3.8
8.9
5.5
14
14
Iron
818,000
580,000
12,000
11,000
9,200
9,800
5,100
6,800
5,900
7,600
9,200
Lead
NE
900
52
24
8.0
14
4.0
5.8
4.7
8.2
15
Magnesium
NE
1,000,000
27,000
23,000
13,000
24,000
4,000
64,000
3,100
33,000
22,000
Manganese
25,600
90,000
390 J
230 J
270 J
330 J
130 J
350 J
150 J
250 J
300 J
Mercury
46
580
0.098 U
0.013 J
0.0094 J
0.018 J
0.0089 J
0.10 U
0.0096 J
0.009 J
0.023 J
Nickel
11,100
150,000
12
11
6.8
11
5.3
7.2
6.4
8.5
13
Potassium
NE
NE
510
520
530
730
360 J
610
440 J
550
700
Selenium
5,840
9,600
2.6 U
3.4 U
3.5 U
3.7 U
3.3 U
3.6 U
0.65 J
3.6 U
3.2 U
Silver
5,840
9,000
0.75 U
0.96 U
0.99 U
1.1 U
0.94 U
1.0 u
1.1 U
1.0 u
0.93 U
Sodium
NE
1,000,000
370 U
480 U
490 U
530 U
470 U
510 U
570 U
510 U
460 U
Thallium
12
130
0.48 J-
0.31 J-
2.6 UJ
1.9 UJ
2.4 UJ
0.35 J-
2.9 UJ
0.27 J-
2.3 UJ
Vanadium
5,830
5,500
23
17
11
17
9.2
15
10
11
16
Zinc
350,000
630,000
70
70
25
51
18
23
25
40
92
Notes:
All values are provided in milligrams per kilogram (mg/kg).
## Boldface value indicates that the analyte was detected.
* Because there were no exceedances of EGLE DCCand EPA RSLs (Hazard Quotient 1; Target Risk 105), EPA Common
Concentration Ranges and EGLE Statewide Default Background Levels were not listed in the table. EPA Common
Concentratoin Ranges can be found in Table 4-2 in the 1992 Remedial Investigation for the site. EGLE Statewide Default
Background Levels are provided in the Part 201 Nonresidential soil criteria tables.
^ Trivalent Chromium values calculated as the difference between Total Chromium and Hexavalent Chromium.
DDC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high,
mg/kg Milligrams per kilogram
NE Not established
RSL Regional Screening Level
U Not detected above listed reporting limit
UJ Not detected above listed reporting limit, which is considered approximate due to deficiencies in one or more quality
control criteria.
2 of 4
-------
Table IB
Soil and Sediment: Metals Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample ID:
SR-SO-FL01B-
00.06-083021
SR-SO-FL01C-
00.06-083021
SR-SO-FL03A-
00.06-082721
SR-SO-FL03B-
00.06-082721
SR-SO-FL03C-
00.06-082721
SR-SO-LD03-
06.24-083021
SR-SO-LD04-
00.06-083021
SR-SO-LD05-
06.24-083021
SR-SO-LD05D-
06.24-083021
EGLE Part 201
Location
Description:
Former Lagoon
Former Lagoon
Former Lagoon
Former Lagoon
Former Lagoon
Lagoon Ditch
Lagoon Ditch
Lagoon Ditch
Lagoon Ditch
EPA Composite
Worker
Generic
Nonresidential
Sample Type:
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Regional
Direct Contact
Sample Date:
08/30/21
08/30/21
08/27/21
08/27/21
08/27/21
08/30/21
08/30/21
08/30/21
08/30/21
Analyte
Screening
Levels (RSL) *
Criteria
(DCC) *
Sample Depth:
(bgs)
0" - 6"
0" - 6"
0" - 6"
0" - 6"
0" - 6"
6" - 24"
0" - 6"
6" - 24"
6" - 24"
Aluminum
NE
370,000
5,200
4,900
7,300
6,500
5,200
3,100
4,100
5,200
11,000
Antimony
467
670
6.6 UJ
5.5 UJ
5.6 U
4.7 U
6.4 U
5.7 U
6.6 U
5.9 U
5.9 U
Arsenic
30
37
4.1
4.6
4.8
5.8
4.5
2.8
4.5
2.7
4.1
Barium
21,700
130,000
52
48
49
43
47
20
38
29
33
Beryllium
2,290
370,000
0.38 J
0.34 J
0.63
0.54
0.36 J
0.20 J
0.31 J
0.30 J
0.33 J
Cadmium
100
2,100
0.55 U
0.46 U
0.47 U
0.39 U
0.54 U
0.47 U
0.55 U
0.49 U
0.49 U
Calcium
NE
NE
100,000 J+
120,000 J+
110,000
120,000
110,000
17,000
84,000
52,000
44,000
Chromium, Hexavalent
63
9,200
0.20 U
0.20 U
0.20 UJ
0.20 UJ
0.20 UJ
0.20 U
0.20 U
0.20 U
0.20 U
Chromium, Trivalent ^
1,750,000
1,000,000
12
11
12
10
12
7.2
12
7.5
9.3
Chromium, Total
NE
NE
12
11
12
10
12
7.2
12
7.5
9.3
Cobalt
347
9,000
3.6 J
3.4 J
3.5 J
3.4 J
3.6 J
2.2 J
3.0 J
2.1 J
2.6 J
Copper
46,700
73,000
11
13
14 J
14 J
14 J
10 J
12 J
6.3 J
7.6 J
Iron
818,000
580,000
mg/kg
7,900
8,800
8,400
8,900
9,300
5,900
9,600
6,200
7,500
Lead
NE
900
12
14
8.7 J
10 J
10 J
5.5 J
9.3 J
5.1 J
5.7 J
Magnesium
NE
1,000,000
23,000
18,000
32,000
21,000
19,000
6,800
22,000
13,000
17,000
Manganese
25,600
90,000
290 J
310 J
350
270
270
110
280
230
190
Mercury
46
580
0.023 J
0.022 J
0.11 U
0.010 J
0.014 J
0.11 u
0.0097 J
0.0085 J
0.0082 J
Nickel
11,100
150,000
11
12
11
10
12
6.5
9.6
6.2
8.3
Potassium
NE
NE
790
760
680
580
600
350 J
560
350 J
490
Selenium
5,840
9,600
3.8 U
3.2 U
3.3 U
2.7 U
3.8 U
3.3 U
3.9 U
0.68 J
3.5 U
Silver
5,840
9,000
1.1 U
0.91 U
0.94 U
0.78 U
1.1 U
0.94 U
1.1 U
0.99 U
0.99 U
Sodium
NE
1,000,000
550 U
460 U
450 J
320 J
420 J
91 J
110 J
65 J
170 J
Thallium
12
130
0.39 J-
0.25 J-
2.3 U
2.0 U
2.7 U
2.4 U
2.8 U
2.5 U
2.5 U
Vanadium
5,830
5,500
16
16
14
13
14
8.7
15
11
14
Zinc
350,000
630,000
67
73
40
39
42
32
53
25
31
Notes:
All values are provided in milligrams per kilogram (mg/kg).
## Boldface value indicates that the analyte was detected.
* Because there were no exceedances of EGLE DCC and EPA RSLs (Hazard Quotient 1; Target Risk 10~5), EPA Common Concentration
Ranges and EGLE Statewide Default Background Levels were not listed in the table. EPA Common Concentratoin Ranges can be
found in Table 4-2 in the 1992 Remedial Investigation for the site. EGLE Statewide Default Background Levels are provided in the
Part 201 Nonresidential soil criteria tables.
^ Trivalent Chromium values calculated as the difference between Total Chromium and Hexavalent Chromium.
DDC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high,
mg/kg Milligrams per kilogram
NE Not established
RSL Regional Screening Level
U Not detected above listed reporting limit
UJ Not detected above listed reporting limit, which is considered approximate due to deficiencies in one or more quality control
criteria.
3 of 4
-------
Table IB
Soil and Sediment: Metals Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample ID:
SR-SO-RD-01-
03.05-083121
SR-SO-RD-02-
01.03-083121
SR-SO-RD-03-
01.03-083121
SR-SO-RD-04-
01.03-083121
SR-SO-RD-06-
05.07-083121
SR-SO-RD-08-
01.03-083121
SR-SO-RD-09-
01.03-083121
SR-SO-RD-10-
05.07-083121
SR-SO-RD-11-
03.05-083121
Location
Restricted
Restricted
Restricted
Restricted
Restricted
Restricted
Restricted
Restricted
Restricted
EGLE Part 201
Description:
Ditch
Ditch
Ditch
Ditch
Ditch
Ditch
Ditch
Ditch
Ditch
EPA Composite
Worker
Generic
Nonresidential
Sample Type:
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Discrete
Interval
Regional
Direct Contact
Sample Date:
08/31/21
08/31/21
08/31/21
08/31/21
08/31/21
08/31/21
08/31/21
08/31/21
08/31/21
Analyte
Screening
Levels (RSL) *
Criteria
(DCC) *
Sample Depth:
(bgs)
3'- 5'
1' -3'
r-3*
1' -3'
5'-7'
1' -3'
r-3*
5'-7'
3'-5'
Aluminum
NE
370,000
3,300
3,800
4,100
9,400
6,700
4,400
2,700
5,100
2,800
Antimony
467
670
5.7 U
5.1 U
6.4 U
6.5 U
7.6 U
5.7 U
6.6 U
6.6 U
6.5 U
Arsenic
30
37
3.5
1.8
2.7
3.7
3.4
3.6
3.8
1.9
4.2
Barium
21,700
130,000
19
13 J
15 J
56
40
45
29
33
13 J
Beryllium
2,290
370,000
0.25 J
0.20 J
0.22 J
0.48 J
0.39 J
0.50
0.22 J
0.22 J
0.22 J
Cadmium
100
2,100
0.48 U
0.43 U
0.53 U
0.54 U
0.63 U
0.47 U
0.55 U
0.55 U
0.54 U
Calcium
NE
NE
61,000
1,100
5,500
4,900
9,500
87,000
190,000
1,800
74,000
Chromium, Hexavalent
63
9,200
0.20 U
0.20 U
0.20 U
0.30
0.20 U
0.20 U
0.20 U
0.20 U
0.20 U
Chromium, Trivalent ^
1,750,000
1,000,000
16
6.3
7.8
15
15
9.1
8.0
6.9
7.0
Chromium, Total
NE
NE
16
6.3
7.8
15
15
9.1
8.0
6.9
7.0
Cobalt
347
9,000
2.6 J
2.0 J
2.2 J
5.5
4.4 J
2.5 J
2.0 J
2.3 J
2.3 J
Copper
46,700
73,000
7.3 J
3.0 J
4.2 J
12 J
16 J
8.4 J
8.9 J
3.0 J
7.8 J
Iron
818,000
580,000
mg/kg
7,800
5,400
6,200
12,000
10,000
7,500
7,100
5,800
6,300
Lead
NE
900
4.7 J
2.9 J
4.3 J
5.2 J
8.7 J
5.8 J
6.0 J
4.0 J
10 J
Magnesium
NE
1,000,000
12,000
930
1,800
2,900
4,400
27,000
66,000
1,100
34,000
Manganese
25,600
90,000
310
74
120
190
160
280
310
170
170
Mercury
46
580
0.0080 J
0.095 U
0.11 U
0.11 U
0.021 J
0.10 U
0.017 J
0.022 J
0.026 J
Nickel
11,100
150,000
7.9
5.3
6.2
14
14
8.2
7.7
5.5
8.4
Potassium
NE
NE
400 J
220 J
240 J
1,100
960
580
520 J
250 J
540
Selenium
5,840
9,600
3.3 U
0.35 J
0.42 J
0.58 J
0.94 J
3.3 U
3.9 U
3.9 U
3.8 U
Silver
5,840
9,000
0.95 U
0.85 U
1.1 U
1.1 U
1.3 U
0.94 U
1.1 U
1.1 U
1.1 U
Sodium
NE
1,000,000
140 J
85 J
270 J
1,200
1,200
380 J
1,600
270 J
190 J
Thallium
12
130
2.4 U
2.1 U
2.6 U
2.7 U
3.2 U
2.4 U
0.44 J
2.8 U
2.7 U
Vanadium
5,830
5,500
14
9.7
10
20
17
12
13
10
11
Zinc
350,000
630,000
26
13
19
34
68
30
28
26
20
Notes:
All values are provided in milligrams per kilogram (mg/kg).
## Boldface value indicates that the analyte was detected.
* Because there were no exceedances of EGLE DCC and EPA RSLs (Hazard Quotient 1; Target Risk 105), EPA Common
Concentration Ranges and EGLE Statewide Default Background Levels were not listed in the table. EPA Common
Concentratoin Ranges can be found in Table 4-2 in the 1992 Remedial Investigation for the site. EGLE Statewide Default
Background Levels are provided in the Part 201 Nonresidential soil criteria tables.
^ Trivalent Chromium values calculated as the difference between Total Chromium and Hexavalent Chromium.
DDC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
J Value is considered an estimate for quality control reasons.
J- Value is considered an estimate for quality control reasons, and may be biased low.
J+ Value is considered an estimate for quality control reasons, and may be biased high,
mg/kg Milligrams per kilogram
NE Not established
RSL Regional Screening Level
U Not detected above listed reporting limit
UJ Not detected above listed reporting limit, which is considered approximate due to deficiencies in one or more
quality control criteria.
4 of 4
-------
Table 2A
Landscaping Materials: Polychlorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample Name
Sample Type
Sample Date
Result (ng/kg)
Aroclor
1248
Aroclor
1254
Aroclor
1260
EPA Residential Regional Screening Levels (RSL) *:
2,270
1,170
2,400
SR-LM-01-091521
Composite
09/15/21
160 J-
36 UJ
36 UJ
SR-LM-05-091521
Composite
09/15/21
36 U
36 U
36 U
SR-LM-18-091521
Composite
09/15/21
37 U
37 U
37 U
SR-LM-19-091521
Composite
09/15/21
35 U
35 U
35 U
SR-LM-2 0-091521
Composite
09/15/21
35 U
35 U
35 U
SR-LM-21-091521
Composite
09/15/21
34 U
34 U
34 U
SR-LM-22-091621
Composite
09/16/21
35 U
35 U
35 U
Notes:
All values are provided in micrograms per kilogram (ng/kg).
## Boldface value indicates that the analyte was detected.
* EPA Residential Regional Screening Levels (RSL) (Hazard Quotient 1; Target Risk 10"5) were
determined to be more stringent than the EGLE Part 201 Generic Residential Direct Contact
Criterion of 4,000 |Jg/kg for PCBs.
Hg/kg Micrograms per kilogram
EGLE Michigan Department of Environment, Great Lakes, and Energy
J- The result is an estimated quantity but the results may be biased low.
ND Not detected
PCB Polychlorinated biphenyl
RSL Regional Screening Level (November 2022)
U The analyte was analyzed for but was not detected above the reported sample quantitation limit.
UJ The analyte was analyzed for but was not detected. The reported quantitation limit is approximate
and may be inaccurate or imprecise.
lof 1
-------
Table 2B
Landscaping Materials: Metals Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
EGLE Part 201
Generic Residential
Sample ID:
SR-LM-01-
091521
SR-LM-05-
091521
SR-LM-18-
091521
SR-LM-19-
091521
SR-LM-20-
091521
SR-LM-21-
091521
SR-LM-22-
091621
Regional Screening
Concentration
Criteria
Sample Type:
Composite
Composite
Composite
Composite
Composite
Composite
Composite
Analyte
Levels (RSL)
Range *
(DCC)
Sample Date:
09/15/21
09/15/21
09/15/21
09/15/21
09/15/21
09/15/21
09/15/21
Aluminum
77,400
10,000 - 300,000
50,000
5,200
4,200
2,200
1,900
40,000
1,700
1,300
Antimony
31
NE
180
5.9 UJ
5.6 UJ
5.7 UJ
6.2 UJ
5.1 UJ
5.2 UJ
4.3 UJ
Arsenic
6.8
1-50
7.6
5.8
4.5
3.4
3.4
1.0
3.4
3.5
Barium
15,300
10 - 3,000
37,000
43
41
8.6 J
8.4 J
240
5.2 J
230
Beryllium
156
0.1-40
410
0.46 J
0.33 J
0.15 J
0.13 J
6.6
0.12 J
0.094 J
Cadmium
7.1
0.01-0.7
550
0.58
0.38 J
0.20 J
0.22 J
0.093 J
0.22 J
0.15 J
Calcium
NE
NE
NE
100,000
120,000
46,000
80,000
220,000
100,000
210,000
Chromium, Hexavalent
3.0
NE
2,500
0.60 J
0.40 J
0.20 UJ
0.20 UJ
0.20 UJ
0.20 UJ
0.20 UJ
Chromium, Trivalent ^
117,000
NE
790,000
41
56
5.2
5.2
4.2
4.4
3.5
Chromium, Total
NE
1 - 1,000
NE
42 J
56 J
5.2 J
5.2 J
4.2 J
4.4 J
3.5 J
Cobalt
23
1-40
2,600
4.0 J
2.7 J
2.5 J
2.2 J
0.96 J
2.0 J
1.0 J
Copper
3,130
2-100
20,000
27 J
11J
10 J
6.9 J
0.99 J
6.3 J
7.8 J
Iron
54,800
NE
160,000
mg/kg
27,000 J
14,000 J
7,000 J
5,900 J
1,200 J
5,300 J
2,900 J
Lead
NE
2-200
400
20
9.6
3.3
3.3
1.7 U
2.8
5.7
Magnesium
NE
600 - 6,000
1,000,000
24,000
26,000
10,000
15,000
50,000
14,000
130,000
Manganese
1,830
20 - 3,000
25,000
1,400 J
1,300 J
170 J
210 J
2,500
180 J
87 J
Mercury
11
0.01-0.3
160
0.017 J
0.092 U
0.11 u
0.094 U
0.10 u
0.088 U
0.010 J
Nickel
825
5-500
40,000
15
10
7.1
6.5
0.17 J
5.1
5.1
Potassium
NE
NE
NE
660
450 J
240 J
300 J
2,900
240 J
670
Selenium
391
0.1-2
2,600
0.61 J
3.3 U
3.3 U
3.6 U
2.3 J
3.0 U
2.5 U
Silver
391
0.01-5
2,500
0.98 U
0.94 U
0.95 U
1.0 U
0.85 U
0.86 U
0.72 U
Sodium
NE
NE
1,000,000
190 J
220 J
51J
74 J
1,800
76 J
240 J
Thallium
0.78
NE
35
0.64 J-
0.54 J-
2.4 UJ
2.6 UJ
2.1 UJ
2.1 UJ
1.8 UJ
Vanadium
393
20 - 500
570
37 J
55 J
9.3 J
7.6 J
8.1 J
6.7 J
6.5 J
Zinc
23,500
10 - 300
170,000
80 J
210 J
20 J
21J
0.34 J
12 J
5.4 J
+
Notes:
All values are provided in milligrams per kilogram (mg/kg).
## Boldface value indicates that the analyte was detected.
Value exceeds EPA Residential Regional Screening Level (RSL) (Hazard Quotient 1; Target Risk 10~5), however, it is within the EPA Common Concentration Range for soils.
Source: U.S. EPA. 1983. Office of Solid Waste and Emergency Response, Hazardous Waste Land Treatment, SW874 . Page 273. April.
Trivalent chromium values calculated as the difference between Total Chromium and Hexavalent Chromium.
DDC Direct Contact Criteria
EGLE Michigan Department of Environment, Great Lakes, and Energy
J The result is an estimated quantity. The associated numerical value is the approximate concentration of the analyte in the sample.
J- The result is an estimated quantity but the results may be biased low.
mg/kg Milligrams per kilogram
NE Not established
RSL Regional Screening Level (November 2022)
U The analyte was analyzed for but was not detected above the reported sample quantitation limit.
UJ The analyte was analyzed for but was not detected. The reported quantitation limit is approximate and may be inaccurate or imprecise.
lof 1
-------
Table 3
Wipes: Polychorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample ID
Sample Date
Outfall Pipe Description
Sub-Location Description
Sample
Area
(cm2)
PCB Result
(Hg/100 cm2)
PCB Spill Cleanup Requirement (40 CFR 761.125) *:
10
SR-WP-OF01S-092821
09/28/21
12" Corrugated Aluminum
South portion of pipe invert
100
1.0 u
SR-WP-OF01C-092821
09/28/21
Center portion of pipe invert
100
1.0 u
SR-WP-OF01N-092821
09/28/21
North portion of pipe invert
100
1.0 u
SR-WP-OF02S-092821
09/28/21
12" Corrugated Aluminum
South portion of pipe invert
100
1.0 u
SR-WP-OF02C-092821
09/28/21
Center portion of pipe invert
100
1.0 u
SR-WP-OF02N-092821
09/28/21
North portion of pipe invert
100
1.0 u
SR-WP-OF03S-092821
09/28/21
12" Corrugated Aluminum
South portion of pipe invert
100
1.0 u
SR-WP-OF03C-092821
09/28/21
Center portion of pipe invert
100
1.0 u
SR-WP-OF03N-092821
09/28/21
North portion of pipe invert
100
1.0 u
SR-WP-OF04C-092821
09/28/21
4" Corrugated HDPE, Black
Center portion of pipe invert
100
1.0 u
SR-WP-OF06C-092821
09/28/21
4" Perforated PVC, White
Center portion of pipe invert
100
1.0 u
SR-WP-OF07S-092821
09/28/21
6" Solid PVC, White
South portion of pipe invert
100
1.0 u
SR-WP-OF07N-092821
09/28/21
North portion of pipe invert
100
1.0 u
SR-WP-OF10SW-092821
09/28/21
12" Corrugated Aluminum
Southwest portion of pipe invert
100
1.0 u
SR-WP-OF10C-092821
09/28/21
Center portion of pipe invert
100
1.0 u
SR-WP-OF10NE-092821
09/28/21
Northeast portion of pipe invert
100
1.0 u
SR-WP-OF11NW-092821
09/28/21
12" Corrugated Aluminum
Northwest portion of pipe invert
100
1.0 u
SR-WP-OF11C-092821
09/28/21
Center portion of pipe invert
100
1.0 u
SR-WP-OF11SE-092821
09/28/21
Southeast portion of pipe invert
100
1.0 u
Notes:
All concentrations are provided in micrograms per 100 cubic centimeter (|ig/100 cm2).
* Requirement for PCB Spill Cleanup at nonrestricted location of low-contact, outdoor surfaces (40 CFR 761.125 [c][4][iv]).
|ig/100 cm2 Micrograms per 100 square centimeters
CFR Code of Federal Regulations
cm2 Square centimeter
HDPE High-density polyeurothane
PVC Polyvinyl chloride
U The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).
lof 1
-------
Table 4
Perimeter Air: Polychorinated Biphenyls (PCBs) Results
Shiawassee River Superfund Site Assessment
2440 W. Highland Road
Howell, Michigan
Sample ID
Tube
Number
Time Details
Flow Rates
Sample
Volume
(L)
PCB Results
(Hg/m3)
Start Date
Start
Time
End Date
End
Time
Sample
Period
(min)
Initial
(L/min)
Final
(L/min)
Average
(L/min)
EPA Residential Regional Screening Level (RSL) for Ambient Air *:
0.0490
SR-PA-01-122121
91253
12/20/21
6:00
12/21/21
17:00
2,100
5.070
5.010
5.040
10,584
0.0047 U
SR-PA-02-122121
91253
12/20/21
6:05
12/21/21
17:05
2,100
5.050
5.000
5.025
10,553
0.0047 U
SR-PA-03-122121
79688
12/20/21
6:10
12/21/21
17:10
2,100
5.030
5.050
5.040
10,584
0.0047 U
SR-PA-06-122121
(Duplicate of PA-03)
79687
12/20/21
6:25
12/21/21
17:25
2,100
5.080
5.010
5.045
10,595
0.0047 U
SR-PA-04-122121
79688
12/20/21
6:15
12/21/21
17:15
2,100
5.130
5.010
5.070
10,647
0.0047 U
SR-PA-05-122121
79685
12/20/21
6:20
12/21/21
17:20
2,100
5.090
5.000
5.045
10,595
0.0047 U
SR-PA-FB-122121
79687
12/20/21
-
12/21/21
-
-
-
-
-
-
0.0046 U
Notes:
All concentrations are provided in micrograms per cubic meter (ng/m3).
* EPA Residential Air Regional Screening Level (Hazard Quotient 1; Target Risk 10 5).
## Boldface value indicates that the analyte was detected.
Hg/m3 Micrograms per cubic meter
L/min Liters per minute
min Minute
PCB Polychlorinated biphenyl
RSL Regional Screening Level (November 2022)
U The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).
1 of 1
-------
APPENDIX D
UVINGSTONDAILY.COM NEWSPAPER ADS
-------
ki LIVINGSTONDAILY.COM I SUNDAY, SEPTEMBER 3, 2023 I 5A
¦' IIEFS
FROM WIRE REPORTS
Biden approves Medal of Honor
for helicopter pilot in Vietnam
WASHINGTON - As an Army first
lieutenant and Cobra helicopter pilot
during the Vietnam War. Larry Taylor
flew hundreds of missions and saved
countless lives. But no rescue flight
was as daring, or as meaningful to
Taylor, as the one for which he will
receive the Medal of Honor from
President Joe Biden.
President Joe Biden will recognize
Taylor at a ceremony this week, the
White House announced Friday.
Taylor was engaged by enemy fire
at least 340 times and was forced
down five times, according to the
Army. He received scores of combat
decorations, including the Silver Star,
a Bronze Star and two Distinguished
Flying Crosses.
Taylor left Vietnam in August 1968.
a couple months after that flight. He
was released from active duty in Au-
gust 1970, having attained the rank of
captain, and was discharged from the
Army Reserve in October 1973.
Statue believed to depict
Marcus Aurelius seized from
museum
NEW YORK - A headless bronze
statue believed to depict the Roman
emperor and philosopher Marcus Au-
relius was ordered seized from the
Cleveland Museum of Art by New
York authorities investigating antiqui-
ties looted from Turkey.
A warrant signed by a judge in
Manhattan on Aug. 14 ordered the sei-
zure of the statue, which the museum
acquired in 1986.
The 76-inch statue dates from
A.I). 180 to A.I). 200 and is worth
$20 million, according to the district
attorney's office.
Todd Mesek, a spokesperson for
the museum, said it "takes prove-
nance issues very seriously and re-
views claims to objects in the collec-
tion carefully and responsibly."
Nobel Foundation retracts
invites to Russia, Belarus, Iran
STOCKHOLM - The Nobel Founda-
tion on Saturday retracted its invita-
tion for representatives of Russia. Be-
larus and Iran to attend this year's
Nobel Prize award ceremonies in De-
cember after the controversial deci-
sion "provoked strong reactions."
Several Swedish lawmakers said
Friday they would boycott this year's
Nobel Prize award ceremonies in the
Swedish capital. Stockholm, after the
private foundation that administers
the prestigious awards changed its
position from a year earlier and in-
vited representatives of the three
countries to attend.
The Nobel Foundation said earlier
it had extended invitations to all
countries with diplomatic missions in
Sweden and Norway to the Dec.10
event since that "promotes opportuni-
ties to convey the important messages
of the Nobel Prize to everyone."
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No wrongdoing was found on the part of Jeannie Gogoleski, an employee of
Hartland Consolidated Schools, after an investigation into violations of the
Family Education Rights and Privacy Act. Livingston daily file photo
FERPA
Continued from Page 1A
Aug. 29. and confirmed
no wrongdoing had been
found.
The statement from
Allen Law Group received
by The Daily from Har-
tland Consolidated
Schools reads:
"On March 1, 2023. the
Hartland Consolidated
Schools District engaged
the law firm of The Allen
Law Group. PC, to con-
duct an independent
fact-finding investigation
and provide a legal opi-
nion into complaints re-
ceived from district par-
ents alleging that you vio-
lated the Family Educa-
tional Rights and Privacy
Act when your husband.
Board Member Glenn Go-
goleski, disclosed stu-
dent information on a
public podcast.
"Please allow this let-
ter to serve as not ice that
ALG has completed its in-
vestigation. and based
upon the evidence and
witness statements,
there was insufficient ev-
idence to show that you
violated FERPA."
Glenn Gogoleski made
the comments on the
podcast "This Is My
Brain" on Feb. 19, where
he was a guest.
He was joined by HCS
Trustee Greg Keller, for-
mer school board candi-
date Robert Merwin and
Larry Parsons, as well as
host Jeremy Scott Gibbs.
During the podcast.
Gogoleski mentioned his
wife. Jeannine, works in
one of the school offices.
At one point, the group
was discussing the need
for board members to re-
quest access to enter
school buildings. Gogo-
leski said he would test
his theory in two weeks
when his personal calen-
dar opened up.
"I'm going to every
school and I'm going to
find out how far I can get
in without an escort." he
said.
He continued to say:
"The other things, too,
what I want to do is spend
a litt le bit of time just sit-
ting in the offices. I will
tell you. because my wife
works in one of the school
offices, there is so much
that goes on that doesn't
get reported, doesn't get
watched. I want to see
that. I want to see the kids
that are the problems. I
want to see the kids that
come into the office and
swear and throw things.
"Right now. when a kid
has a meltdown in a class,
you know what they do?
They evacuate the rest of
the class so that the child
can be talked down from
his little meltdown. They
need three administra-
tors to be there to secure
the child, to bring him
down to the office and
when I say secure I'm not
talking about grabbing
them by the scruff of the
neck, I'm talking about
talking to him. getting
him and coaxing him
down to the office, things
like that. It's sickening.
This is why I could never
ever, ever be a t eacher be-
cause if I was I would be a
news highlight reel. I real-
ly would."
Gogoleski has repeat-
edly claimed on social
media he's been misquot-
ed in regards to the pod-
cast. which The Daily re-
viewed again for this arti-
cle.
After the podcast
aired, district parents
contacted Superinten-
dent Hughes with re-
quests to have Jeannine
Gogoleski investigated
for violating FERPA.
Hughes sent out a news-
letter which outlined
those concerns.
"The community
reached out to me and
other board members in
W
Appc that
keep you
connected.
Learn more
On'ine
JH
i iKingston daily
¦i
large numbers stipulat-
ing a concern that per-
sonal information pro-
tected under the Family
Educational Rights and
Privacy Act has been pro-
vided to Mr. Gogoleski by
a school employee,"
Hughes wrote. "Parents
are concerned that peo-
ple who have no right to
know details about their
children are now in pos-
session of this informa-
tion. I have committed to
a complete and thorough
investigation into this
concern."
But Jeannine feels she
was tried in the court of
public opinion.
"I was guilty until
proven innocent." she
wrote in a statement to
The Daily earlier this
year.
Jeannine Gogoleski
has been employed at
HCS for 15 years. She's
worked in food service, as
a media paraprofessional
and as a secretary.
"Each of these posi-
tions has allowed me to
Published LCP: Sept. 3, 2023
interact with every school
in the district. Through
the years I have bought
kids lunches, snacks,
prom dresses, tickets to
school plays, etc. I have
also mentored for Reach-
ing Higher, flexing my
schedule (making up the
time), as most meetings
are held during the day. I
was told. 'You do not have
to make up the time.' I al-
ways did, as mentors
were needed."
In June 2022. Jean-
nine ran for a t rustee seat
on the Cromaine District
Library Board.
"Interesting, that
come August. I was of
course being accused of
wanting to ban books, get
rid of books, etc. Very few
people ever sent me any
correspondence or asked
why I was running. I have
never wanted to ban
Howell Township,
Zoning Board of Appeals Staff
SEPTEMBER 19, 2023
6:30 P.M.
books, ever. I believe
freedom of choice and
reading brings knowl-
edge. I mean really, who
wants to ban Captain Un-
derpants or The Holy Bi-
ble?" Jeannine wrote to
The Daily, expressing
frustration that she
hasn't been separated
publicly from her hus-
band.
"It seems with all the
art icles about me. I am al-
ways referred to as the
wife of Glenn Gogoleski.
It would be nice and very
progressive of you and
your report ing, to think of
me not just as someone's
wife, but as an indepen-
dent woman with my own
thoughts, opinions and
feelings."
— Cont act reporter Pa-
tricia Alvord at pal-
vord@livingstondai-
ly.corn.
LV-008791385
« rnA
OtrA
EPA Begins Review of
Shiawassee River Site
Howell, Michigan
The U.S. Environmental Protection Agency is conducting a
five-year review of the Shiawassee River Superfund site,
which includes the former Cast Forge Company facility
located at 22440 West Highland Road in Howell, and an
approximate eight miles of the Shiawassee River downstream
to the Steinacker Road area. The Superfund law requires
regular checkups of sites that have been cleaned up - with
waste managed on-site - to make sure the cleanup continues
to protect people and the environment. This is the fourth five-
year review of this site.
As part of the site cleanup, the Cast Forge Co. filled on-site
waste lagoons and removed contaminated soil. The company
also provided funding for restoration activities, such as
sediment dredging, on the southern part of the Shiawassee
River. Natural processes were expected to complete the
cleanup of the river. EPA completed the active cleanup
activities in 2005 and then planned to monitor the remaining
contamination. Efforts also included issuing a fish advisory
for the area to discourage fish consumption. Currently,
several businesses are active on-site.
More information is available at www.epa.gov/superfund/
shiawassee-river.The review is expected to be completed in
Summer 2024.
The five-year review is an opportunity for you to tell EPA
about site conditions and any concerns you have. Contact:
Leah Werner Charles Rodriguez
Remedial Project Manager Community Involvement Coordinator
312-886-0552 312-886-7472
werner.leah@epa.gov rodriguez.charles@epa.gov
You may also call EPA toll-free at 800-621 -8431,9:30 a.m. to
5:30 p.m., weekdays.
LV-0008791371
GENOA TOWNSHIP
ZONING BOARD OF APPEALS
The Genoa Township Zoning Board of Appeals will hold a public hearing on Tuesday,
September 19, 2023 at Genoa Township Hall, 2911 Dorr Road, Brighton, Ml, 48116 to review the
following variance request:
1. 23-26...A request by Treasure Rousselo, 3520 Pineridge Lane, a waterfront yard
setback variance, size variance and any other variance deemed necessary by the
Zoning Board of Appeals toallowfora non-conforming deckto remain.
2. 23-27...A request by Tim Chouinard, 924 Sunrise Park, for a side and rear yard
setback variance and any other variance deemed necessary by the Zoning Board of
Appeals to construct a detached accessory structure.
3. 23-28... A request by Andrew Perri, 5311 Brighton Road, for setback variances and
any other variance deemed necessary by the Zoning Board of Appeals to allow for
outdoor commercial recreation at am existing commercial building.
4. 23-29...A request by Matt DeLapp/Faulkwood Shores Singh LLC, 300 S. Hughes, for
a front yard setback variance and any other variance deemed necessary by the
Zoning Board of Appeals to construct the new Faulkwood Shores Golf Course
Clubhouse.
5. 23-30...A request by Ben Cross and Chris Bonk, 5680 Glen Echo Drive, for a height
and setback variances and any other variance deemed necessary by the Zoning
Board of Appeals to construct new retaining walls and a fence.
Please address any written comments to the Genoa Township Zoning Board of Appeals at 2911
Dorr Road, Brighton, Ml 48116 or via email at amy@genoa.org. All materials relating to this
request may be examined at the Township Hall during regular business hours.
Genoa Township will provide necessary reasonable auxiliary aides and services to individuals
with disabilities who are planning to attend. Please contact the Genoa Township Hall at (810)
227-5225 at least seven (7) days in advance of the meeting if you need assistance.
NOTICE OF PUBLIC HEARING
HOWELL TOWNSHIP
ZONING BOARD OF APPEALS
3525 BYRON ROAD, Ml 48855,
517 546 2817
The Howell Township Zoning Board of Appeals will be
holding the following Public Hearing on Tuesday,
September 19,2023 at 6:30 p.m. to consider the
following request:
PETITIONER: Clarke Thompson, File# PZBA-2023-05,
PARCEL #4706-16-400-022,3200 Warner Road, Howell
Ml, 48855 (full legal description available upon request).
ARTICLE XIV - SUPPLEMENTAL REGULATIONS,
SECTION 14.07 - ACCESSORY BUILDING PROVISIONS,
ITEM B.
REQUEST: Applying for a Fifty Five (60) foot dimensional
variance to allow for an accessory building to be located
in front of the rear line of the house.
The Public is invited to submit written comments on the
proposed request to the Zoning Administrator at
inspectortahowelltownshipmi.orq or at Howell Township
Hall, 3525 Byron Rd., Howell Ml, 48855 any time prior to
5:00 p.m. on Monday, September 18,2023.
-------
LIVINGSTONDAILY.COM I SUNDAY, APRIL 14, 2024 I 5A
Deadline day doesn't have to be taxing
Daniel de Vise
USA TODAY
Tax season 2024 is
nearly over.
Many have already
filed returns, but some
people have put it off.
Monday, however, is Tax
Day. The deadline is al-
ways on April 15 unless
that date falls on a week-
end or holiday.
Here are answers to
common questions that
crop up during tax return
preparation:
Does the IRS offer
free tax preparation?
Yes. Select: taxpayers
in some states are able to
prepare and file their
2023 federal income tax-
es online directly to the
IRS through the Direct:
File pilot. And the IRS
Free File program offers
free filing to taxpayers
with limited income.
The agency anticipat-
ed that hundreds of
thousands of taxpayers,
at least, will join the pilot
program, which is avail-
able to individuals but
not to businesses.
Initially, the pilot was
available to eligible tax-
payers in Arizona, Cali-
fornia, Florida, Massa-
chusetts, Nevada, New
Hampshire, New York,
South Dakota, Tennes-
see, Texas, Washington
state and Wyoming.
What are the new
income tax brackets?
Income tax brackets
jumped by 7% for 2023.
Income tax is progres-
sive: The more a person
earns, the more they pay
as a percentage of their
earnings. Each bracket
represents a range of in-
comes subject to a par-
ticular income tax rate.
Tax brackets rose again
in 2024.
Here are the 2023 tax
brackets:
For individual filers:
• 37% for incomes
over $578,125.
• 35% for incomes
over $231,250.
• 32% for incomes
over $182,100.
• 24% for incomes
over $95,375.
• 22% for incomes
over $44,725.
• 12% for incomes
over $11,000.
• 10% for income be-
low $11,000.
For married couples
filing jointly:
• 37% for income
greater than $693,7.50.
• 35% for incomes
over $462,500.
• 32% for incomes
over $364,200.
• 24% for incomes
over $190,7.50.
• 22% for incomes
over $89,450.
• 12% for incomes
over $22,000.
• 10% for income be-
low $22,000.
Here is a look at how
LIVINGSTON COUNTY
BOARD OF COMMISSIONERS
MEETING MINUTES
Per Board Resolution No. 2009-07-202,
The Livingston County Board of Commissioners
will not be publishing minutes of
their meetings in the newspaper. The
minutes can be accessed from the county
web site at milivcountv.gov or available
at the County Clerk's Office
The standard deduction for 2023 was $13,850 for individuals and $27,700 for
married couples filing jointly. For 2024, it increased to $14,600 for individuals
and $29,200 for married couples filing jointly, chip east/reuters file
the tax brackets changed
for 2024, which will be
used when filing in 2025
for this year. For exam-
ple, in the top individual
tax bracket , the 2024 in-
come threshold was
raised from $578,126 to
$609,351. This means
that more than $30,000
in individual income will
be taxed at 35% instead
of 37%.
What is the new
standard deduction?
The standard deduc-
tion for 2023 was
$13,850 for individuals
and $27,700 for married
couples filing jointly. For
2024, it increased to
$14,600 for individuals
and $29,200 for married
couples filing jointly.
People over 65 qualify
for an additional stan-
dard deduction. For
2023, it's $1,850 if you
are single or filing as a
head of household and
$1,500 for married tax-
payers. For 2024, the fig-
ures rise to $1,950 and
$1,550, respectively.
Have itemized
deductions changed?
Itemized deductions
"mostly remain the
same" in 2023, according
to Charles Schwab. A few
specifics:
• State and local tax-
es: Taxpayers who item-
ize may deduct up to
$10,000 in property,
sales or income taxes
they have already paid to
local or state govern-
ments.
• Mortgage interest:
Taxpayers can generally
deduct interest paid on
the first $750,000 of
mortgage debt, accord-
ing to NerdWallet. Peo-
ple who bought a house
before Dec. 16, 2017, may
deduct interest on the
first $1 million.
• Medical expenses:
Only medical and dental
expenses that exceed
7.5% of one's adjusted
gross income can be de-
ducted.
What is the Social
Security
tax limit for 2024?
There's a limit to how
much of a person's earn-
ings are taxed by the So-
cial Security Admini-
stration, at a rate of
6.2%. (Self-employed
workers pay 12.4%.)
In 2023, wages be-
yond $160,200 were not
taxed for Social Security.
In 2024, the limit rose to
$168,600.
When a person
reaches the Social Secu-
rity tax limit, they get to
keep that much more of
their earnings.
What are the new IRA
and 401(k)
contribution limits?
Employees who par-
ticipate in company re-
tirement plans could
generally contribute
$22,500 to their 401(k) in
2023, up from $20,500
in 2022.
Those who didn't par-
ticipate in an employer-
sponsored plan could
contribute $6,500 to an
individual retirement
account (IRA).
People 50 and older
have higher limits.
For 2024, the limits
rise to $23,000 and
$7,000.
What about health
savings account
limits, child tax
credits?
HSA contribution lim-
its were $3,850 for indi-
vidual coverage and
$7,750 for family cover-
«>EPA
EPA Begins Review
of Shiawassee River Superfund site
Howell, Michigan
U.S. Environmental Protection Agency is conducting a five-year review of the Shiawassee Superfund site,
which includes the former Cast Forge Company facility located at 2440 West Highland Rd. in Howell, and
an approximate eight miles of the Shiawassee River downstream to the Steinacker Road area. The
Superfund law requires regular checkups of sites that have been cleaned up - with waste managed on-site
- to make sure the cleanup continues to protect people and the environment. This is the fourth five-year
review of the site.
As part of the site cleanup, the Cast Forge Company filled on-site waste lagoons and removed
contaminated soil. The company also provided funding for restoration activities, such as sediment
dredging, on the southern part of the Shiawassee River. Natural processes were expected to complete the
cleanup of the river. The EPA completed the active cleanup activities in 2005 and then planned to monitor
the remaining contamination. Efforts also included issuing a fish advisory for the area to discourage fish
consumption. Currently, several businesses are operational on-site.
More information is available atwww.epa.gov/superfund/shiawassee-river.The review should be
completed by May 23,2024.
The five-year review is an opportunity for you to tell the EPA about site conditions and any concerns you
have. If you have questions or comments about the site, contact:
age in 2023, according to
Fidelity. In 2024, they
rise to $4,150 and
$8,300.
The 2023 child tax
credit is worth up to
$2,000 per qualifying
dependent under age 17,
according to NerdWallet.
The income limit re-
mains the same in 2024.
The credit: decreases if a
filer's modified adjusted
gross income exceeds
$200,000, or $400,000
for a married couple fil-
ing jointly.
Where can I find
a tax refund
estimator?
TurboTax, H&R Block,
NerdWallet and AARP all
offer tax refund estima-
tors.
Those receiving a re-
fund can expect it a
month or less after filing,
in most cases.
The IRS says it issues
most refunds within 21
calendar days. Paper re-
turns, however, can take
four weeks or more. Al-
low time for the refund
check to reach your bank
account or mailbox.
Pinckney Community Schools
Pinckney Community Schools will be accepting bids in
relation to its Request for Proposal (RFP) for a specific piece
of grounds equipment, which can be found at:
https://www.pinckneypirates.orq/o/district/paqe/bid-
opportunities
Bids are due Tuesday, April 30,2024 by 12:00pm as follows:
Hard copy of required documents in sealed envelope labeled:
Pinckney Community Schools
Loose Equipment - Grounds
2130 E. M-36
Pinckney, Ml 48169
Attention: Jim Hayden
The Board of Education will not consider or accept a bid
received after the date and time listed for bid submission,
and reserves the right to accept or reject any and all bids, in
whole or in part.
Bids will be opened publicly and read aloud at 2:00pm,
Tuesday, April 30, 2024 at Pinckney Community Schools
Board Office Room 419, 2130 E. M-36, Pinckney, Ml 48169.
No immediate decision will be rendered.
No oral, fax or emailed Bids shall be submitted. The Bid shall
be accompanied by a statement certifying compliance with
the Iran Economic Sanctions Act.
LV-0008792466
CITY OF BRIGHTON
CITY COUNCIL MEETING
SYNOPSIS
APRIL 2, 2024
The meeting of the Brighton City Council was held on
Tuesday, April 2, 2024, starting at 6:30 p.m., at 200 N. 1st
Street, Brighton Ml 48116. Members present from the City of
Brighton: Albert, Bohn, Gardner, Gipson, Pettengill, Schmenk,
and Tobbe. The following actions were taken during the
meeting: approval of minutes from the regular meeting of
March 12, 2024; approval of Resolution #2024-07, approval of
Social District License Application for Main St. Steakhouse,
Inc. (The Reserve) located at 317 W. Main Street; approval of
Resolution #2024-08, approval of Social District License
Application for L & R Ciao Amici's, Inc. located at 217 W. Main
Street; approval of Resolution #2024-09, adopting a final
project plan for wastewater treatment plant and collection
system improvements and designating an authorized project
representative; appointment of Susanne Clausnitzer and
Michelle Trame Lanzi; approve of the 2024 civic event
applications as presented; approval to set a date of May 4,
2024 at 10:00 a.m. to unveil Decision Pending; approval to
award the crack sealing services contract to Wolverine Seal
Coating, LLC in an amount not to exceed $30,000; approval
to purchase a portable hoist from Allied Incorporated in the
amount of $47,199; and approval of the purchase of a
Gorman-Rupp Factory Built Water Booster Station from
Dubois-Cooper Associates, Inc. for Pine Creek Subdivision in
an amount not to exceed $270,860.The meeting was
adjourned at 10:48 p.m.
Tara Brown
City Clerk
LV-0008792461
Leah Werner
Remedial Project Manager
312-886-0552
werner.leah@epa.gov
Natalie Romain
Community Involvement Coordinator
312-353-3659
romain.natalie@epa.gov
You may also call the EPA toll-free at 800-621-8431,9:00 a.m. to 5:30 p.m., weekdays.
LV-0008792376
ADVERTISEMENT FOR BIDS
PINCKNEY COMMUNITY SCHOOL DISTRICT
2020 BOND PROGRAM
BUILDING GROUNDS AND
TRANSPORTATION RENOVATIONS
Pinckney Community School District will receive firm prime contractor bids for the
labor materials, equipment, and all other services to complete the following Building
Grounds and Transportation Renovations located at 2020 East M-36, Pinckney, Ml 48169.
The bidding documents consist of plans & specs prepared by Integrated Design Solutions,
1441 W Long Lake Rd #200, Troy, Ml 48098. Documents may be downloaded from
Pipeline Suite. Jasmine Jefferson or Kirsten Vincent at the AUCH Construction Company
248-334-2000 if you need assistance viewing or obtaining documents from Pipeline Suite. A
copy of the documents will also be available for review at the offices of the George W.
Auch Co., 65 University Drive, Pontiac, Ml 48342, 248-334-2000, on or after Wednesday,
April 10th, 2024.
A Pre-Bid meeting will be held at Pinckney Transportation Building, 2020 East M-36, Pinckney,
Ml 48169, on Tuesday, April 16th, 2024 at 1:30 PM. Please meet at the main office.
The envelope bearing your proposal must identify your company, the proposal being bid and
addressed to the attention of Mr. Michael A. Engelter, Assistant Superintendent for Finance &
Operations, Pinckney Community Schools, 2130 East M 36, Pinckney, Ml 48169. Each proposal
shall be sealed in an opaque envelope and marked with the name of the bidder. Bids must be
delivered no later than 12:00 noon, Tuesday, April 30th, 2024 to Pinckney Community School
District at the address noted above or the AUCH Construction Company. Late bids will not be
considered or accepted. Each proposal must be submitted on the forms furnished by the
construction manager and must be completed in full; including the Familial Disclosure
Statement and the Affidavit of Compliance to the Iran Economic Sanctions Act and notarized. A
bid bond executed by a U.S. Treasury listed surety company acceptable to the owner, or a
cashier's check in the amount of at least 5% of the sum of the proposal payable to Pinckney
Community Schools shall be submitted with each proposal in excess of $29,572.00. All
proposals shall be firm for a period of sixty (60) days.
Bids will be publicly opened and read via a public meeting held at Pinckney Community
Schools, Room #419, 2130 East M 36, Pinckney, Ml 48169 at 2:00 PM on Tuesday April 30,
2024
Successful bidders whose proposals are $50,000 or more will be required to furnish
a Satisfactory Performance and Payment Bond in the amount of 100% of their bid. The
cost of the Bond shall be included in each proposal.
The Board of Education reserves the right to reject any and/or all bids in whole or in part and to
waive any informalities therein. The Board of Education reserves the right to accept that bid
which in its opinion, is in the best interest of the Owner.
Amanda Winningham
Secretary Board of Education
Pinckney Community Schools
LV-0008792465
-------
APPENDIX E
EXCERPT OF THE DRAFT 2020-2021 BASLEINESAMPLING DATA REPORT
PREPARED BY CTI AND ASSOCIATES, INC. AND ARCADIS U.S., INC.
DATED FEBRUARY 2024
-------
2020-2021 BASELINE SAMPLING DATA REPORT
SHIAWASSEE RIVER SUPERFIJND SITE
HOWELL, MICHIGAN
USEPA ID: MID980794473
FEBRUARY 2024
Submitted to: United States Environmental Protection Agency,
Region V
77 West Jackson Boulevard, SR-6J
Chicago, IL 60604-3590
Prepared by:
CTI and Associates, Inc.
28001 Cabot Drive; Suite 250
Novi, MI 48377
and
ftARCADIS
Arcadis U.S., Inc.
28550 Cabot Drive; Suite 500
Novi, MI 48377
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
TABLE OF CONTENTS
EXECUTIVE SUMMARY ES-1
1.0 INTRODUCTION 1-1
1.1 Site Location 1-1
1.2 Site Description 1-2
1.3 ROD Summary and Implementation Status 1-3
1.4 Five-Year Review Process 1-3
1.5 Baseline Sampling Program Overview 1-4
2.0 SUMMARY OF FIELD SAMPLING ACTIV ITIES 2-1
2.1 Surface Water Sampling Program 2-1
2.2 Fish Sampling 2-3
2.3 Sediment Sampling 2-3
2.4 Field Deviations 2-4
2.5 Sampling Summary 2-5
2.6 Data Management and Recordkeeping 2-7
3.0 ANALYTICAL DATA QUALITY AND VALIDATION 3-1
3.1 Data Quality Assessment Summary 3-1
3.1.1 Precision 3-3
3.1.2 Accuracy 3-4
3.1.3 Representativeness 3-5
3.1.4 Comparability 3-7
3.1.5 Completeness 3-7
3.1.6 Sensitivity 3-8
3.1.7 Conclusions 3-8
3.2 Data Handling and Processing 3-8
3.2.1 Field Quality Control Samples 3-8
3.2.2 Total PCB Concentrations 3-9
4.0 WATER COLUMN DATA EVALUATION 4-1
4.1 Field Conditions 4-1
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
4.2 Passive Sampling Results 4-2
4.2.1 Calculation of Freely Dissolved PCB Concentrations in Surface Water 4-2
4.2.2 Freely Dissolved PCB Concentrations and Changes Among Sampling Station
Results 4-4
4.2.3 PCB Congener Mass Contribution to Freely Dissolved PCB Concentrations 4-5
4.3 Discrete Surface Water Samples 4-6
4.3.1 PCB Congener Mass Contribution to Total Water Column PCB Concentrations. 4-7
4.4 Total PCB Load Gain Analysis 4-7
4.5 PCB Composition Analysis 4-10
5.0 FISH TISSUE DATA EVALUATION 5-1
5.1 Fish Tissue Summary 5-2
5.2 Spatial Patterns 5-3
5.3 PCB Composition Analysis 5-4
6.0 SEDIMENT DATA EVALUATION 6-1
6.1 Statistical Evaluation 6-2
6.2 Spatial Patterns in Total PCBs and TOC-Normalized Total PCBs 6-3
6.2.1 Sediment Triplicate Sample Results 6-5
7.0 NEXT STEPS 7-1
8.0 REFERENCES 8-1
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
LIST OF EXHIBITS
Exhibit 2-1 Field Sampling Summary (in text)
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
LIST OF TABLES
Table
2-1
Summary of Precipitation Data
Table
2-2
Surface Water Sample Location Summary
Table
2-3
Summary of SP3™ Sampler Deployment and Retrieval
Table
4-1
Summary of Water Quality Parameter Measurements
Table
4-2
Calculated Cfree Results for SP3™ Samplers
Table
4-3
Analytical Results for Round 1 Discrete Surface Water Samples
Table
4-4
Analytical Results for Round 2 Discrete Surface Water Samples
Table
4-5
Statistical Summary for Surface Water Sample Results
Table
4-6
Estimation of River Discharge Rates
Table
4-7
Total PCB Load Gain Analysis
Table
5-1
2021 Shiawassee River Fish Community Survey - ISM-29. May 19. 2021
Table
5-2
2021 Shiawassee River Fish Community Survey - ISM-M 1-27. May 19, 2021
Table
5-3
2021 Shiawassee River Fish Community Survey - Bowen Road. May 18, 2021
Table
5-4
2021 Shiawassee River Fish Community Survey - West Marr Road, May 18, 2021
Table
5-5
2021 Shiawassee River Fish Community Survey - Chase Lake Road, May 19, 2021
Table
5-6
Analytical Results for Fish Tissue Samples
Table
5-7
Statistical Summary for Fish Tissue Sample Results
Table
5-8
Statistical Summary for Fish Tissue Lipid Results
Table
5-9
Statistical Summary for Lipid-Normalized Fish Tissue Sample Results
Table
6-1
Analytical Results for Sediment Samples
Table
6-2
Statistical Summary for Sediment Sample Results
Table
6-3
Triplicate Sampling Evaluation
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
LIST OF FIGURES
Figure ES-1 Sediment Surface Weighted Area Concentrations (SWAC) Total PCBs
Figure ES-2 Total PCB Load Gain by River Mile
Figure ES-3 Total PCB Congeners in 2021 Fish Samples
Figure 1-1 Site Location
Figure 2-1 SP3 and Surface Water Sample Locations
Figure 2-2 Fish Tissue Sample Locations
Figure 2-3a Sediment Transect Locations - Highway M-59 to Bowen Road
Figure 2-3b Sediment Transect Locations - Bowen Road to West Barron Road
Figure 2-3c Sediment Transect Locations - West Barron Road to West Marr Road
Figure 2-3d Sediment Transect Locations - West Marr Road to West Allen Road
Figure 2-3e Sediment Transect Locations - West Allen Road to Chase Lake Road
Figure 2-3f Sediment Transect Locations - Chase Lake Road to Steinacker Road
Figure 4-1 Total PCB Congeners in Surface Water Samples
Figure 4-2a PCB Congener Mass Distribution in Surface Water - UP-12
Figure 4-2b PCB Congener Mass Distribution in Surface Water - UP-11
Figure 4-2c PCB Congener Mass Distribution in Surface Water - BR-10
Figure 4-2d PCB Congener Mass Distribution in Surface Water - BR-09
Figure 4-2e PCB Congener Mass Distribution in Surface Water - BR-08
Figure 4-2f PCB Congener Mass Distribution in Surface Water - BR-07
Figure 4-2g PCB Congener Mass Distribution in Surface Water - BR-06
Figure 4-2h PCB Congener Mass Distribution in Surface Water - BR-05
Figure 4-2i PCB Congener Mass Distribution in Surface Water - BR-04
Figure 4-2j PCB Congener Mass Distribution in Surface Water - MR-03
Figure 4-2k PCB Congener Mass Distribution in Surface Water - CL-02
Figure 4-21 PCB Congener Mass Distribution in Surface Water - SR-01
Figure 4-3 Congener PCB-4 in Surface Water Samples
Figure 4-4 Estimated River Discharge Rates
Figure 4-5 Total PCB Load Gain Analysis
Figure 4-6 PCB Composition in SP3 and Surface Water Samples
Figure 5-1 Total PCB Congeners in 2021 Fish Tissue Samples
Figure 5-2 Lipids in 2021 Fish Tissue Samples
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
Figure 5-3 Lipid-normalized Total PCB Congeners in 2021 Fish Tissue Samples
Figure 5-4 Correlation between PCB, Lipid, Weight, and Length in Panfish Samples
Figure 5-5 Correlation between PCB, Lipid, Weight, and Length in White Sucker Samples
Figure 5-6 Wet-Weight Total PCBs in 2021 White Sucker and Panfish Samples
Figure 5-7 Lipid-normalized Total PCBs in 2021 White Sucker and Panfish Samples
Figure 5-8 PCB Composition in 2021 White Sucker and Panfish Samples
Figure 6-la Sediment Surface-Weighted Average Concentration Areas - Highway M-59 to Bowen
Road
Figure 6-lb Sediment Surface-Weighted Average Concentration Areas - Bowen Road to West Barron
Road
Figure 6-lc Sediment Surface-Weighted Average Concentration Areas - West Barron Road to West
Marr Road
Figure 6-ld Sediment Surface-Weighted Average Concentration Areas - West Marr Road to West
Allen Road
Figure 6-le Sediment Surface-Weighted Average Concentration Areas - West Allen Road to Chase
Lake Road
Figure 6-lf Sediment Surface-Weighted Average Concentration Areas - Chase Lake Road to
Steinacker Road
Figure 6-2a
2021
Sediment
Figure 6-2b
2021
Sediment
Figure 6-3a
2021
Sediment
Figure 6-3b
2021
Sediment
Figure 6-4a
2021
Sediment
Figure 6-4b
2021
Sediment
Figure 6-5
2021
Sediment
Figure 6-6
2021
Sediment
Figure 6-7
2021
Sediment
Figure 6-8
Total PCBs in /
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
LIST OF APPENDICES
Appendix A Field Notes and Photograph Logs
Appendix B Laboratory Reports
Appendix C Validation Reports
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
LIST OF ACRONYMS AND ABBREVIATIONS
2020 FSP 2020 LTMP Baseline Sampling Event Field Sampling Plan
°C degrees Celsius
% percent
Arcadis Arcadis U.S., Inc.
BAL blank action limit
CF correction factor
CFC Cast Forge Company
Cfree freely dissolved polvchlorinated biphenvl concentrations
cfs cubic feet per second
COC chain-of-custody
CTI CTI and Associates. Inc.
cy cubic yard
EDD electronic data deliverable
EMPC estimated maximum possible concentration
Eurofins Eurofins Environment Testing in Knoxville. Tennessee
ft feet or foot
ft/s feet per second
FYR Five-Year Review
HCA hierarchical clustering analysis
kc elimination rate value
ISM incremental sampling methodology
LCS laboratory control sample
LCSD laboratory control sample duplicate
LDPE low-density polyethylene
LiDAR Light Detection and Ranging
LTM long-term monitoring
LTMP Long-Term Monitoring Plan
M-59 Michigan State Highway M-59
MDEQ Michigan Department of Environmental Quality
MDNR Michigan Department of Natural Resources
mg/day milligram per day
mg/day-ft milligram per day per foot
mg/kg milligram per kilogram
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2020-2021 Baseline Sampling Data Report
mg/kg-lipid
milligram per kilogram lipid
mg/kg-OC
milligram per kilogram organic carbon
mg/L
milligrams per liter
MNR
monitored natural recovery
MS
matrix spike
mS/cm
microSiemens per centimeter
MSD
matrix spike duplicate
ng/L
nanogram per liter
NTU
Nephelometric Turbidity Units
Pace
Pace Analytical Services. LLC
PC
principal component
PCA
principal component analysis
PCB
poly chlorinated biphenvl
PCB-4
2,2'-dichlorobiphenyl
PRC
performance reference compound
QA
quality assurance
QAPP
Quality Assurance Project Plan
QC
quality control
Report
2020-2021 Baseline Sampling Data Report
RL
Reporting Limit
ROD
Record of Decision
RPD
relative percent difference
RS
River Station
SDG
sample delivery group
Site
Shiawassee River Superfund Site (MID980794473), Howell, Michigan
SOP
Standard Operating Procedure
SWAC
surface weighted average concentration
TOC
total organic carbon
USEPA
United States Environmental Protection Agency
Warzvn
Warzyn, Inc. ofNovi, Michigan
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
EXECUTIVE SUMMARY
This 2020-2021 Baseline Sampling Data Report (Report) summarizes the baseline sampling results for the
Shiawassee River Superfund Site (MID980794473) located approximately 2 miles northwest of the City of
Howell in Livingston County, Michigan (the Site; Figure 1-1). The Shiawassee River Superfund Site
includes the former Cast Forge Company (CFC) facility (now called Hayes Lemmerz International) in
Howell, Michigan, and approximately 8 miles of the Shiawassee River downstream to the Steinacker Road
crossing. The baseline sampling was completed to provide information that will assist in the development
of a long-term monitoring plan (LTMP) and to support evaluation of monitored natural recovery (MNR) at
the Site under the Five-Year Review process (CTT and Associates. Inc. [CTT] and Arcadis U.S.. Inc.
[Arcadis], 2020). A separate report will be prepared to present an evaluation of MNR at the Site.
The baseline sampling was completed at the Site between Michigan State Highway 59 (M-59) and
Steinacker Road and upstream of M-59 (i.e.. upstream area), in accordance with the 2020 LTMP Baseline
Sampling Event Field Sampling Plan (CTI and Arcadis. 2020) and included collection of the following:
• Time-averaged surface water samples at 12 locations using SP3™ samplers;
• Two rounds of discrete (grab) surface w ater samples from the 12 SP3™ sampler locations;
• Fish samples from five sample locations (11 fish samples at each location); and
• Composite sediment samples from surface (0 to 2 inches) and subsurface (2 to 6 inches) intervals
at 243 transects.
The data presented in this Report establish a baseline measurement of polychlorinated biphenyl (PCB)
concentrations at the Site in surface water, fish, and sediment, and provide insight into current Site
conditions relative to available historical data. Average baseline surface sediment (0 to 2 inch) total PCB
Aroclor concentrations were less than 1 milligram per kilogram (mg/kg), with only 13 of 239 (5 percent
[%]) of surface samples greater than 1 mg/kg (Figure ES-1). Total PCB Aroclor surface weighted average
concentrations (SWACs) in surface sediment were below 1 mg/kg across the entire baseline sampling area,
ranging from 0.37 to 0.55 mg/kg in individual reaches (excluding the upstream area). When the baseline
sediment data were examined on a length-weighted basis for comparison to the historical 0- to 6-inch
sampling interval. SWAC values in River Mile 1 (i.e.. the first mile of the Site) were of similar magnitude
to the composite sample concentrations measured in 2013 (2015:1.05 mg/kg and 1.02 mg/kg, respectively).
In each of River Miles 2 through 8, length-weighted baseline SWAC values for the 0- to 6-inch interval
were all lower than those measured in 2013 (2015). Baseline white sucker fish tissue spatial patterns were
consistent with spatial patterns in baseline surface sediment concentrations, with relatively low results
upstream of the Site, highest results at the Bowen Road sampling location, and a subsequent decrease in
the downstream direction. The highest white sucker total PCB congener fish tissue concentrations observed
in this baseline dataset were also noted at Bowen Road within River Mile 2, which had the highest level of
total Aroclor PCBs detected in a 2021 surface sediment sample from 0 to 2 inches (Figure ES-1).
ES-1
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
Figure US-1: Sediment Surface Weighted Area Concentration (SWAC) Total PCBs
3.5
3.0
2.5
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Notes:
in = inch
mi = mile
Discrete surface water baseline sample results exhibited increases in total PCB congener concentrations
from the upstream to downstream direction between M-59 and Bowen Road, with concentrations
subsequently decreasing in the downstream direction. The load gain analysis of freely dissolved PCB
concentrations (Cfree) was consistent with a historical source of PCB contributions to the water column
between M-59 and Bowen Road and could be indicative of adjacent land-disturbing activities. The load
gain analysis shows that PCB contributions to surface water decrease downstream of Bowen Road
(Figure ES-2). Spatial patterns in total PCB congener panfish tissue seem to reflect the spatial trends noted
for Cfree, with an increase in PCB concentrations from the upstream of M-59 (ISM-29) to downstream,
peaking at West Marr Road, then beginning to decrease moving farther downstream. This is consistent with
the primary route of exposure for panfish, which typically occurs either through direct contact with surface
water or through their consumption as part of the aquatic food chain in the same water body (Gobas et al.,
1999). Multiple factors affect fish bioaccumulation of PCBs and impart variability in observed fish tissue
concentrations; however, maximum concentrations of wet-weight total PCB congeners measured in both
white sucker and panfish skin-on fillet samples during the baseline sampling were below the fish
consumption screening value for the "Do Not Eat" meal category (2.7 mg/kg; Michigan Department of
Community Health, 2016) (Figure ES-3). The PCB composition across homologue groups in surface water
and fish tissue samples was examined through multivariate analysis, including Principal Component
Analysis (PCA) and cluster analysis. In surface water samples, the PCB composition demonstrated a
transition from less chlorinated congeners to higher chlorinated congeners adjacent to the former CFC
Surface Sediment (0-2 in) and Surface Weighted Area Concentration
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
facility, potentially reflecting a greater portion of weathered versus un-weathered PCBs entering the water
column or potentially a differences in PCB sources to the river. In fish tissue samples, there is a noticeable
difference between the ISM-29 samples and those at downstream sampling locations, suggesting that fish
caught at ISM-29, upstream of M-59, may be exposed to a different source of PCBs compared to fish in the
sampling locations downstream of M-59. Additionally, while the difference in PCB analysis methods
precludes more rigorous statistical comparison, 2021 PCB congener concentrations results were lower than
those observed historically (pre-2017) for similar fish species and sampling locations.
Figure ES-2: Total PCB Load Gain by River Mile
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ES-3
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
Figure ES-3: Total PCB Congeners in 2021 Fish Samples
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
1.0 INTRODUCTION
CTI and Associates, Inc. (CTI) and Arcadis U.S., Inc. (Arcadis) prepared this 2020-2021 Baseline Sampling
Data Report (Report) on behalf of Adient, LLC to present the results of sampling for polvchlorinated
biphenyls (PCBs) in fish tissue, water, and sediment conducted at the Shiawassee River Superfund Site
(MID980794473) located in Howell, Michigan (the Site). The Shiawassee River Superfund Site includes
the former Cast Forge Company (CFC) facility (now called Hayes Lemmerz International) in Howell,
Michigan, and approximately 8 miles of the Shiawassee River downstream to the Steinacker Road crossing.
Prior to the Site being listed on the National Priority List in 1983. response actions were initiated at the Site
to address discharges of process cooling water to the river from the CFC facility. Initial response actions
began in 1976 after the Michigan Department of Natural Resources (MDNR) identified the CFC facility as
the primary source of PCB contamination in the South Branch of the Shiawassee River. Response actions
included modifying the facility wastewater system in 1977 to eliminate use of a settling tank and
constructing an unlined overflow ditch and an overflow lagoon. In 1981. the Michigan Attorney General
and CFC executed a Consent Judgement with the following actions:
• Re-route the existing storm drain north of the plant building:
• Install soil erosion protection (a berm):
• Remove PCB-contaminated muck from the discharge area west of the plant and from the river;
• Remove the lined lagoon, including standing water, sediments, and the plastic liner;
• Remove contaminated soil from the flatlands area:
• Properly transport and dispose of all contaminated material at an off-site facility.
Subsequent remedial actions were conducted under the direction of the Michigan Department of
Environment. Great Lakes, and Energy (formerly the Michigan Department of Environmental Quality
| MDEQ| and MDNR) in 1981 and 1982. which included the removal of an estimated 2,531 pounds of PCBs
in 1.805 cubic yards (cv) of river sediment, primarily in the section of the river between the former CFC
facility and Bowen Road. Additional remedial actions were completed by ENTACT, LLC in 2004 and
2005, which included excavation and disposal of 364 cv of PCB-contaminated sediments and soils from
the Site, its adjacent floodplain, and the river.
1.1 Site Location
The Site is located approximately 2 miles northwest of the City of Howell in Livingston County, Michigan
(Figure 1-1). As defined in the 2001 Record of Decision (ROD; United States Environmental Protection
Agency [USEPA| 2001b), the Site includes the 52.42-acre property located at 2440 West Highland Road
(Michigan State Highway 59 [M-59]), in Howell, Livingston County, Michigan, and approximately 8 miles
of the Shiawassee River downstream to Steinacker Road. The property is currently owned by Mr. Vern
Brockway of Lucy Road Resources, LLC, which engages in tire sales and repair and landscape supply. The
property consists of the main facility building and several open parking and equipment storage areas. The
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property is bordered on the north and east by wetlands, to the south by M-59, and to the west by the South
Branch of the Shiawassee River, which is the focus of this Report. The surrounding areas are mixed land
uses, including farming, light industrial operations, residential properties, and undeveloped forests and
fields.
1.2 Site Description
As described in the 2020 Long-Term Monitoring Plan (LTMP) Baseline Sampling Event Field Sampling
Plan (2020 FSP; CTI and Arcadis, 2020), the regional topography slopes gently northward with occasional
low discontinuous hills and low-lying, glacially derived kettle lakes and lowlands. The average area ground
surface elevation is approximately 900 feet (ft) above mean sea level. The Site is underlain by
unconsolidated glacial till consisting of predominantly clays and silts w ith interspersed sand units. River
and floodplain soils are underlain by more recent alluvial deposits and Carlisle muck soils (Warzyn, Inc. of
Novi, Michigan [Warzyn], 1992).
The Shiawassee River is 20 to 45 ft in width, with a reported average width of 25 ft during normal stream
flows. River flow is to the north and eventually flows into Lake Huron. Portions of the river downstream
of the former CFC facility have been historically channelized and straightened presumably for the purposes
of flood control. The depth of water under summer low flow conditions is 1 to 2 ft, with thalweg (the
deepest part of the channel with most flow) depths of up to 5 ft along the outer edge of river bends. The
floodplain is heavily vegetated with interspersed woodland and marshy areas. Land use adjacent to the
Shiawassee River is predominantly agricultural or undeveloped.
On April 21, 2011. a Light Detection and Ranging (LiDAR) survey was conducted to establish a new base
map for the Site. The data was used to generate topographic contours from M-59 to north of Lovejoy Road
on either side of the Shiawassee River. These data were used to establish stationing along the river center
line and generate a hydraulic profile of Shiawassee River stage at the time of the survey. A hydraulic profile
based on the 2011 LiDAR survey is presented on Figure 4 of the 2020 FSP (CTI and Arcadis, 2020). Based
on this profile, four major transitions in surface water slope were identified and are used as the basis to
characterize the river into four reaches, beyond what was observed during the 1992 remedial investigation
(Warzyn. 1992).
• Reach 1 has a slope of about 4.8 ft per mile in the first 3.75 miles between M-59 and West Man-
Road. Under the flow conditions at the time of the survey, water levels were minimally affected
by the Bowen Road culvert. Under high flow, the culvert restricts flow and water noticeably backs
up behind the culvert. Field observations during the sampling event in 2013 in this portion of the
river indicated shallow water flow with sandy bottom and finer grained deposits in the meanders
and upstream/downstream of the Bowen Road Crossing. Fine silt and sand mixtures were noted
for the remaining portions of this section of the river.
• Reach 2 has a slope of about 2.1 ft per mile downstream of West Marr Road to a point about
midway between West Marr Road and Chase Lake Road (3.75 miles downstream of M-59 to
6.25 miles downstream). Field observations during the sampling event in 2013 in this portion of
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the river indicated fine silt and sand mixtures for this section of the river. The water depth was 1.0
to 1.5 ft throughout this portion of the river.
• Reach 3 has a slope of about 1.1 ft per mile from the midway point between West Marr Road and
Chase Lake Road to just downstream of Chase Lake Road (6.25 miles downstream of M-59 to
7.25 miles downstream). Field observations during the sampling event in 2013 in this portion of
the river indicated slow moving water and fine sediment high organic content. No conveyance of
sand was observed under conditions during the sample event. The depth of w ater w as observed to
be 24 inches or less in this portion of the river. The Chase Lake Road Bridge has backwater areas
upstream and downstream on both sides of the river, allowing for accumulation of fine sediments.
• Reach 4 has a slope of about 1.6 ft per mile from downstream of Chase Lake Road to just beyond
Steinacker Road (7.25 miles downstream of M-59 to 8.25 miles downstream). Field observations
during the sampling event in 2013 in this portion of the river indicated fine silt and sand mixtures.
The water depth observed was 1.0 to 1.5 ft throughout this portion of the river. Backwater areas
exist upstream and downstream of the Steinacker Road Bridge, similar to that described at Chase
Lake Bridge, allowing for accumulation of fine sediments.
The 8-mile segment of the river where sampling has occurred is bordered by forested floodplains, rural
areas, residential areas, and wetlands. Additional information on the Site can be found in the ROD (USEPA,
2001b).
1.3 ROD Summary and Implementation Status
This Report was prepared in support of the ROD issued by USEPA on September 28, 2001, and the Third
Five-Year Review (FYR) for the Site completed on August 22, 2019. The remedy outlined in the ROD
included remediating sediment for the first mile (River Mile 1) and remediating one additional area of
sediment in the second mile to achieve a 5 milligram per kilogram (mg/kg) preliminary remediation goal
for PCBs in the river sediment, followed by monitored natural recovery (MNR) ofPCB levels in the river.
The goal was to reach an approximate average PCB concentration of approximately 1 mg/kg of PCBs in
the sediment immediately after active remediation. ROD implementation is ongoing under the FYR
process, including monitoring to evaluate long-term changes in PCB concentrations, as detailed below.
1.4 Five-Year Review Process
The FYR process for this Site includes community notification/involvement, site interviews, monitoring,
data review , and site inspection. The most recent FYR was conducted in 2019 (USEPA, 2019). Previous
FYRs were conducted in 2009 and 2014. A public notice was made available in the Livingston County
Daily Press & Argus on November 4, 2018. The notice stated that a FYR was being conducted and invited
the public to submit comments to the USEPA. The results of the review and report are available at the Site
information repository located at the Howell Carnegie District Library at 314 West Grand River, Howell,
Michigan.
The 2019 FYR report (USEPA, 2019) indicated four issues concerning the Site:
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• A LTMP had not yet been prepared to evaluate the progress of MNR at the Site.
• An operations and maintenance plan had not yet been prepared for the Site to ensure the
effectiveness of existing institutional controls.
• Existing institutional controls from 2010 may no longer address all areas with remaining
contamination due to activities at the former CFC property by the current owner(s).
• A current data evaluation is necessary to evaluate the status of MN R.
To address these issues, the 2019 FYR recommended: preparing and implementing a LTMP to evaluate the
progress of MNR and determine whether additional response actions are necessary to meet the long-term
cleanup goals established in the ROD; preparing an operations and maintenance plan; evaluating the
effectiveness of existing institutional controls; and conducting a baseline sampling event to evaluate PCB
concentrations in surface water, sediment, and fish.
1.5 Baseline Sampling Program Overview
The baseline sampling program described in the 2020 FSP (CTI and Arcadis. 2020) was intended to address
two of the four issues identified in the 2019 FYR (USEPA. 2019). evaluate the status ofMNRatthe Site,
and provide information to assist the development of the LTMP. Baseline data would also be used for
comparison to long-term monitoring (LTM) data to evaluate the ongoing status of MNR at the Site and to
determine whether any additional action may be necessary to achieve long-term cleanup goals established
in the ROD. Results of the baseline sampling event arc summarized herein, and will:
• Provide and/or supplement baseline PCB concentrations in various Site media;
• Provide data and information for the development of an LTMP for the Site; and
• Provide information for USEPA's next FYR.
The remainder of this Report summarizes the baseline sampling program, including field data collected in
2020 and 2021. laboratory analytical data, and the results of data validation performed to confirm that data
of known and documented qual ity arc used for the project.
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2.0 SUMMARY OF FIELD SAMPLING ACTIVITIES
2.1 Surface Water Sampling Program
Surface water sampling was conducted by CTI and ARCADIS between September and November 2020.
PCB concentrations in river surface water were measured in both time-averaged samples, using SP3™
samplers, and discrete (grab) samples. Pursuant to the 2020 FSP (CTI and Arcadis, 2020). collection of
surface water samples was timed with rainfall events so that samples were collected at least 3 days after a
rainfall event greater than 0.25 inch, and at least 2 weeks after a rainfall event greater than 1 inch. Table 2-1
summarizes precipitation dataforthe September 1. 2020. through November 8. 2021, timeframe.
Surface water samples were collected at 12 locations along the river (see Figure 2-1). Prior to collecting
the first discrete surface water samples and deploying the SP3™ samplers, water quality parameters were
measured using a YSI water quality meter at each location. These parameters included water temperature,
pH, specific conductivity, turbidity, and dissolved oxygen (Table 4-1). At each sample location, an average
flow velocity was measured over 40 seconds using a FlowTracker2:i<: meter (Table 2-2). Additionally, the
approximate channel width, ordinary high-water mark, and maximum water depth were measured at each
sample location (Table 2-2) and recorded in a field logbook. Field notes are included in Appendix A.
Prior to deployment of SP3 ™ samplers at each of the 12 sample locations, field-filtered discrete surface
water samples were collected. The discrete surface water samples were collected on September 22,23, and
24, 2020, from the center of the channel at mid-depth and field-filtered through a 0.45-micron filter. Seven
samples were collected between M-59 and Bowen Road (BR-04 through BR-10), one at West Marr Road
bridge (MR-03). one at the Chase Lake Road bridge (CL-02), one at the Steinaker Road bridge (SR-01),
and two "upstream" locations. The "upstream" samples (UP-11 and UP-12) were collected from the south
side of the West Highland Road bridge, upstream of the former CFC facility. This September 2020
sampling is referred to as Round 1 sampling event in this Report.
SP3™ samplers were constructed by SiREM and consisted of a 13-micrometer-thick low-density
polyethylene (LDPE) sheet (approximately 4x10 centimeters). The LDPE sheet was housed in a pre-
cleaned mesh envelope and attached to a stainless-steel support frame, as shown in Photograph 1 below.
Each sampler was spiked with performance reference compounds (PRCs) consisting of 10 non-native PCB
congeners (PCB-14. PCB-36. PCB-78. PCB-104. PCB-121. PCB-142, PCB-155, PCB-184, PCB-192, and
PCB-204) to estimate the extent of disequilibria between the primary PCBs associated with the passive
sampler and the rest of the environmental phases during deployment. These 10 PRCs were selected because
they are typically not found in commercial Aroclor mixtures and, therefore, would not interfere with PCB
measurements in the SP3™ samplers. The PRC correction approach to obtain the freely dissolved PCB
concentrations (Cr„v): is discussed in detail in Section 4.2 of this Report. Prior to shipment, each sampler
was placed in an opaque re-sealable mylar bag (pre-cleaned at the laboratory), which was then placed in a
2 Cfree is defined as steady-state, free phase PCB congener concentrations in surface water.
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clear Ziploc bag along with a unique sample label. During shipping and storage, necessary precautions
were taken to ensure that samplers were stored at 4 degrees Celsius (°C) and away from light.
Photograph 1. SP3™ Sampler Photograph 2. Deployed SP3™ Sampler
Location: UP-SP3-FB-11 02 Location: BR-SP3-05
SP3™ samplers were installed at each of the 12 sampling locations in an upstream to downstream direction
(from south [UP-SP3-12] to north | SR-SP3-01]) on September 24, 2020. SP3™ samplers were placed at
the thalweg to allow the device to remain completely submerged over the period of deployment. During
SP3™ deployment, each sampler was removed from the opaque re-sealable bag and the support frame was
fastened to a metal stake. The metal stake was driven into the sediment using a hand sledge to secure the
sampler in the river's thalweg. Photograph 2 above shows the SP3™ sampler deployed at sample location
BR-SP3-05. The opaque bag was retained for re-use following the sampler retrieval. Sampler deployment
was completed in accordance with the LDPE Sampling Standard Operating Procedure (SOP) (CTI and
Arcadis, 2020). The samplers were deployed for approximately 44 to 45 days.
On November 7 and 8, 2020, a second round of field-filtered discrete surface water samples was collected
prior to the retrieval of the SP3™ samplers and is referred to as Round 2 sampling event is this Report. The
discrete sample was collected immediately downstream of the SP3™ sampler (within a foot) deployed at
that location to minimize potential sediment resuspension. Following surface water sampling, the SP3™
sampler was retrieved from the sample location. The SP3™ sampler was detached from the metal stake
and carefully removed from the water column. Excess debris, if present (typically leaves or sticks), was
removed from the sampler by hand, followed by a quick rinse using river water. The sampler was patted
dry using a paper towel, wrapped in aluminum foil, and placed in an opaque re-sealable bag. The sampler
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2020-2021 Baseline Sampling Data Report
was then packed into another re-sealable plastic bag and packaged in a cooler with ice packs. All SP3™
samplers were sent to Eurofins Environment Testing in Knoxville, Tennessee (Eurofins) and all surface
water grab samples were sent to Pace Analytical Services, LLC (Pace) in Minneapolis. Minnesota for
laboratory analysis of PCB congeners. SP3™ samplers were retrieved from downstream to upstream (i.e.,
from north [SR-SP3-01] to south [UP-SP3-12]). Table 2-3 summarizes SP3™ deployment and retrieval
dates, times, and duration for each sample location. A total of 12 SP3™ samples (and three SP3™ field
blanks) and 24 discrete samples were collected along with four field duplicate samples, two matrix spike
(MS) and matrix spike duplicate (MSD) samples, and four equipment blanks (sec Exhibit 2-1).
2.2 Fish Sampling
Fish tissue sampling was conducted in May 2021 per the 2020 FSP (CTI and Arcadis, 2020). Fish were
collected from five previously sampled locations to meet the size class requirements outlined in the 2020
FSP (CTI and Arcadis, 2020): Bowen Road, West Marr Road. Chase Lake Road. ISM-MI-27, and ISM-29
(see Figure 2-2). The size classes targeted were consistent with the requirements included in Attachment 4
of Fish Contaminant Monitoring Program - Fish Collection Procedures (MDEQ 2014). If target sizes could
not be achieved, the largest size available was collected.
Electrofishing was completed with backpack elcctrofishing units. The field crew placed a block net at the
upstream end of the transect they were sampling, when necessary. The field crew used two backpack
electrofishing units to complete one pass going upstream in the 800-ft extent, from the downstream
boundary to the upstream boundary of the sampling location. Fish were stunned by the backpack units
and/or placed in holding nets, coolers, and buckets until community composition data could be collected.
Prior to collecting the fish sample, a fish community survey was conducted based generally on the Great
Lakes and Environmental Assessment Section Procedure #51. MDEQ Manual of Fisheries Survey Methods
II (MDEQ 1997). Field observations/data were recorded including fish sizes (in 1-inch or 2.5-centimeter
increments), species, and counts of fish collected. Eleven fish were collected at each of the five sampling
locations for laboratory submittal. The target size classes specified in the 2020 FSP (CTI and Arcadis,
2020) were not met for all the samples, as further described in Section 5. Therefore, in accordance with the
2020 FSP (CTI and Arcadis. 2020). similar-sized fish of each species were collected, to the extent possible,
from each location to reduce potential variability associated with fish size and age.
Fish were measured, weighed, and inspected for external anomalies, then placed in sealable plastic bags in
a cooler with ice prior to shipment to the laboratory. At the laboratory, fish were scaled and then filleted
to include the skin and all flesh from the back of the head to the tail and from the top of the back down to
the belly flap area. All fins, tails, heads, viscera, and major bones were removed. A total of 55 fish were
submitted to two Pace laboratories for analysis of PCB congeners (Minneapolis, Minnesota) and lipid
concentrations (Green Bay, Wisconsin) in fillets; see Exhibit 2-1.
2.3 Sediment Sampling
Sediment sampling was conducted from July 12 to August 27, 2021. Sediment cores were collected from
approximately 30 evenly spaced transects per mile (240 transects total), resulting in approximately
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486 composite sediment samples (Figures 2-3a through 2-3f). Four background sampling transects were
located upstream of the former CFC facility (three south of M-59 and one north of M-59 adjacent to the
Site), resulting in eight additional composite samples (see Exhibit 2-1). In areas where the river is braided,
transects were sited in the widest branch of the stream. Before sediment sampling commenced, a survey
was conducted, and endpoints of each transect location were marked (Figures 2-3a through 2-3f).
Sediment sample collection began at the downstream end of the Site and progressed upstream to eliminate
the potential for disturbance of sediments and subsequent localized transport to downstream sampling
locations. Sediment samples were collected in accordance with the SOP for Sediment Push-Core Collection
(CTI and Arcadis, 2020) using hand-pushed Lexan tubes. During the core extraction process, field
personnel recorded the transect locations, times of core retrievals, water depths, penetration depths, field
recovery depths, and probe depths.
Each sediment transect sample was composed of five subsamples spaced evenly across the stream channel,
combined into one composite sample each for the 0- to 2-inch and 2- to 6-inch intervals. The 0- to 2-inch
interval was selected to determine the PCB concentrations in the surface sediment interval tied most closely
to fish tissue concentrations, and the 2- to 6-inch interval was selected to support comparison to prior
samples collected at the Site via 0- to 6-inch length-weighted comparisons. In the event of refusal at a
subsample location, the subsample was moved slightly (an inch or so) upstream so that the even distribution
of samples in a transect was maintained.
The retrieved sediment cores were transported from the river to the sediment processing station. The
processing team photographed each core, documenting the inner and outer views. Additionally, the
processing team measured for each core the core recovery, interval depth, primary component, secondary
or minor components, plasticity, dilatancv. angularity, sorting, moisture content, and consistency, and
recorded the Munsell color. United States Geological Survey classification, and the presence or absence of
sheens. All photographs and data collected in the project master files were uploaded to the central Microsoft
SharePoint site as described in Section 2.6.
For each sediment subsample location, one 0- to 2-inch sample and one 2- to 6-inch sample were collected.
The sampling intervals were then composited across the transect, resulting in one composite sample from
the 0- to 2-inch interval and one composite sample from the 2- to 6-inch interval at each transect. The
chain-of-custody (COC) was maintained and frequently checked for completeness and correctness by the
Processing Team Leader as cores were sampled and stored in coolers on ice for shipment. Transect
composite samples were packed and shipped to Pace in Green Bay, Wisconsin and analyzed for PCB
Aroclors and total organic carbon (TOC).
2.4 Field Deviations
Deviations occurred during the field event. Sampling locations BG-2, T-200, and T-32 were relocated
approximately 50 ft to the north to maintain a 50-ft upstream distance from a utility line at Chase Lake
Road bridge.
Delivery of two sample coolers containing sediment samples was delayed by FedEx, resulting in the
exceedance of the preservation criteria of 6°C. One cooler containing samples collected on July 28 and 29,
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2021, was delivered to the laboratory on August 2, 2021, at a temperature of 19°C. Another cooler
containing samples collected on August 11, 2021, was delivered to the laboratory on August 18, 2021, at a
temperature of 21.5°C. As discussed in Section 3.1.3, these results were deemed usable.
2.5 Sampling Summary
Exhibit 2-1 summarizes the field quality control (QC) sample program and identifies the sample matrices,
analytical programs, and the numbers, types, and frequencies of field QC samples collected.
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Exhibit 2-1: Field Sampling Summary
Matrix
Analyte/
Analytical
Group
Laboratory
Field
Samples
Field
Duplicates
Field
Triplicates
Equipment
Blanks
Field
Blanks
MS/MSD
(2X; 1/20)
Total #
Analyzed
Surface Water
(Filtered)
PCB Congeners
USEPA 1668A
Pace -
Minneapolis,
MN
24
4
0
4
0
1
33
Surface Water
(SP3™)
PCB Congeners
USEPA 1668A
Eurofins -
Knoxville, TN
12
0
0
3 (Trip
Blanks)
0
0
15
Fish Tissue
PCB Congeners
USEPA 1668A
Pace -
Minneapolis,
MN
55
0
0
0
0
4
61
Fish Tissue
Lipids
Pace - Green
Bay, WI
55
0
0
0
0
4 (Laboratory
Duplicate)
61
Composite
Sediment
PCB Aroclors
SW-846 8082A
Pace - Green
Bay, WI
486
25
51
49
14
25
647
TOC Lloyd
Kalin
Pace - Green
Bay, WI
486
25
51
49
14
25
647
Notes: Triplicate samples were collected to assess spatial variability within the transects. For each of the selected locations, two additional samples were collected from separate transects approximately
1 meter from the original sample location.
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2.6 Data Management and Recordkeeping
Field staff from Arcadis and CTI used a central Microsoft SharePoint site for storage of data from field
notebooks, photographs of river transect sampling locations, photographs of sediment cores, sediment
sample tracking logs, and logging information for each sediment core. Field data and notes from surface
water, fish tissue, and sediment sampling were recorded using a combination of field forms and logbooks.
Field forms, logbooks, and sediment core collection and processing notes are included in Appendix A.
Photographs were taken throughout the sampling processes; select photographs are also included in
Appendix A.
Field sample IDs and sample information were recorded on COC documents. COCs were used to organize
samples and ensure proper delivery to the laboratory.
Sediment core collection field data were recorded in a notebook simultaneous to core retrieval and scanned
and uploaded daily to the central Microsoft SharePoint site. Data from the field notebooks was then
transcribed to the master Excel sediment logging file along with the sediment core processing data. In
addition to the field data, photographs of the transects were taken and stored on the SharePoint site. During
the processing stage, photographs were taken of the unopened outside and opened inside view of each
sediment core and stored on the SharePoint site. Each sample shipment contained a COC detailing the
sample record, and copies of the COC were saved in the project files. All data entered into the central
Microsoft SharePoint site were reviewed and verified in real time during field activities to confirm
appropriate documentation was present and complete for each day of field activities, and all samples were
collected with locations documented. Following completion of the sampling activities, the verified field
data for sediment core collection and core processing was uploaded to the project database.
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3.0 ANALYTICAL DATA QUALITY AND VALIDATION
Laboratory analysis of surface water, sediment, and fish tissue samples were completed in accordance with
the Quality Assurance Project Plan (QAPP) (CTI and Arcadis, 2020) as summarized below:
• The LDPE membranes in SP3™ samplers were analyzed by Eurofins for 209 individual PCB
congeners using USEPA Method 1668A. SiREM calculated the Cr,™ results for each SP3™
sampler using the laboratory-reported concentrations for individual congeners in the LDPE
membranes.
• Discrete surface water samples collected during Round 1 and Round 2 sampling events were
analyzed by Pace for 209 individual PCB congeners using USEPA Method 1668A.
• Fish tissue samples were analyzed by Pace for 209 individual PCB congeners using USEPA
Method 1668A and for lipid content.
• Sediment samples were analyzed by Pace for PCB Aroclors using USEPA Method 8082A and for
TOC using the Lloyd Kahn method.
The assessment of data quality is summarized in Section 3.1 and use of laboratory results for data evaluation
is described in Section 3.2. Laboratory reports arc included in Appendix B.
3.1 Data Quality Assessment Summary
Following the receipt of analytical results. Stage 4 data validation and verification for all sample results
were completed by Arcadis in accordance with the QAPP (CTI and Arcadis. 2020). Data validation is a
standardized review process designed to evaluate the analytical quality and utility of a discrete set of
laboratory results and is used to confirm that data of known and documented quality are used for the project.
Data validation involves a systematic evaluation of data to ascertain its precision, accuracy,
representativeness, completeness, comparability, and sensitivity. During the data validation process,
laboratory qualified and unqualified data are verified against supporting documentation. Based on this
evaluation, qualifiers were added, deleted, or modified by the data reviewer as documented in the data
validation reports (Appendix C).
Data validation for SP3™. surface water, fish tissue, and sediment samples were completed in accordance
with USEPA National Functional Guidelines for Organic Superfund Methods Data Review (2017), with
reference to the historical USEPA Contract Laboratory Program National Functional Guidelines for
Organic Data Review (1999, as appropriate) and the 2020 FSP (CTI and Arcadis, 2020).
The following items w ere reviewed during the data validation:
• COC completeness
• Holding times
• Laboratory control samples (LCS)/laboratory fortified blank recoveries
• Surrogate recoveries
• Internal standards
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• MS, MSD recoveries, and relative percent differences (RPD)
• Field duplicate RPDs
• Method blanks, trip blanks, and field/equipment blanks
• Dual column percent differences
• Detection limit records
• Instrument calibration records
• Continuing calibration records
• Instrument tune records
• Internal standard records
• Target compound calculated results.
The usability of data was determined based on the validation findings as summarized in individual data
validation reports (Appendix C). As stated in the data validation reports, overall system performance was
acceptable. There were no major data quality issues that resulted in the qualification of the data as
rejected ("R").
Data validation reports for each sample delivery group (SDG) were provided to USEPA on April 16, 2021
(SP3™ and surface water samples; Arcadis 2021) and April 12. 2022 (sediment and fish tissue samples).
Level IV analytical results were provided to USEPA in the format consistent with the USEPA Region 5
electronic data deliverable (EDD) requirements. The EQuIS 4-file format EDDs were directly uploaded to
the USEPA Region 5 FTP server on June 18. 2021 (surface water samples) and April 11, 2022 (sediment
and fish tissue samples), followed by an email notification to the USEPA Region 5 EDD Administrator
confirming the data upload. In addition to the analytical results, the EDD for sediment samples also
included a description of sediment type and characteristics (e.g., color, sand, silt, clay, etc.). Following the
submittal of sediment data EDD on April 11. 2022. the data validation report for one sediment sample SDG
(#40231861) was revised for the qualification of the PCB Aroclor and TOC data as summarized in
Section 3.1.3. The revised data validation report for this SDG is included in Appendix C.
Below is a summary, categorized by matrices, which describes the field and laboratory QC sample results
that were used to evaluate the precision, accuracy, representativeness, completeness, comparability, and
sensitivity of the analytical data. Field triplicate sediment samples were collected to assess the spatial
variability within the transects and. therefore, were treated as individual samples for the data quality
assessment. The analytical results for these samples were qualified based upon field and laboratory QC
samples (i.e.. MS/MSD and field duplicates). The specifics of data qualification can be found in the
referenced SDG and report number in Appendix C.
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3.1.1 Precision
Precision is defined as the degree of agreement between or among independent, similar, or repeated
measures. Precision was evaluated based upon the QC results3 submitted from both the field and the
laboratory. For the discrete surface water and sediment samples, the RPD of MS/MSD and the field
duplicate samples provided information on the precision of sampling and analytical procedures. For fish
tissue samples, the RPD of MS/MSD was used to assess the precision and accuracy of sampling and
analytical procedures.
Field duplicates were collected at a frequency of one per 10 field samples. The RPD between the parent
sample and field duplicate results were within control limits.
SP3™ Summary
There were no precision data related issues that resulted in qualification of the SP3™ sampler results.
Surface Water Summary
PCB congener sample results associated with SDG #40215465 (Report #38958R) exhibited MS/MSD RPD
greater than the control limit. This exceedance resulted in the associated data to be qualified as estimated.
Fish Tissue Summary
There were no precision data related issues that resulted in qualification of the fish tissue data.
Sediment Summary
TOC sample results associated with SDG #40230468 (Report #4281 OR), SDG #40230526
(Report #42822R). SDG #40231262 (Report #42984R). SDG #40231649 (Report #43142R),
SDG #40232298 (Report #43467R). SDG #40232392 (Report #43473R), and SDG #40232398
(Report #43474R) exhibited MS/MSD RPD greater than the control limit. This exceedance resulted in the
associated data to be qualified as estimated.
TOC sample results associated with SDG #40231642 (Report #43141R) and SDG #40231861
(Report #43205R). SDG #40230969 (Report #43207R). and SDG #40232299 (Report #43468R) exhibited
field duplicate RPD greater than the control limit. This exceedance resulted in the associated data to be
qualified as estimated.
PCB sample results associated with SDG #40231693 (Report #43143R) exhibited field duplicate RPD
greater than the control limit. This exceedance resulted in the associated data to be qualified as estimated.
All the sediment SDGs contained at least one sample that exhibited the following: PCBs by Aroclor analysis
sample results exhibited RPD greater than 40% between the primary and second dissimilar column. These
3 The percent recovery for LCS analysis was estimated to assess the accuracy of analytical methods. The RPD of
LCS/laboratory control sample standard duplicate (LCSD) was evaluated for select equipment blanks collected during
the sediment sampling. The RPD of LCS/LCSD was not evaluated by the laboratory for the SP3™, surface water,
fish tissue, and sediment samples because it is not required by the USEPA-approved analytical methods.
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sample results were qualified based upon the RPD for dual column analysis of detected results. When the
RPD exceeded 40%, the result was reported and flagged "P" by the laboratory. During validation, the
sample results and the RPD were reviewed and based on this review, the appropriate validation qualifier of
estimated (J) or tentative identified/estimated Aroclor (JN) was applied to the sample result. The specific
criteria used to evaluate this RPD are summarized in individual data validation reports (Appendix C).
Individual PCB Aroclor results with the RPD from dual column analysis exceeding 70% were qualified as
estimated with the "JN" was qualified as estimated with "J" qualifiers.
3.1.2 Accuracy
Accuracy is the amount of agreement between a measured value and the true value. Evaluation of the
percent recovery of spiked analytes in MS/MSDs. LCS/LCSDs. internal standards, and surrogates provide
information on accuracy. In addition, Stage 4 validation review of initial and continuing calibration results
provide information on analytical accuracy.
Criteria were met, with the exceptions summarized below:
SP3™ Summary
There were no accuracy data related issues that resulted in qualification of the SP3™ sampler results.
Surface Water Summary
PCB congener sample results associated with SDG #40218019 (Report #39547R) exhibited Initial
Calibration Verification percent relative standard deviation greater than the control limit. This exceedance
resulted in the associated data to be qualified as estimated.
PCB congener sample results associated with SDG #40218019 (Report #39547R) exhibited internal
standard recoveries less than the lower limit but greater than 10%. This exceedance resulted in the
associated data to be qualified as estimated.
PCB congener sample results associated with SDG #40218019 (Report #39547R) exhibited MS/MSD
recoveries greater than the upper limit. This exceedance resulted in the associated detected data to be
qualified as estimated.
Fish Tissue Summary
PCB congener sample results associated with SDG #40227354 (Report #42519R) exhibited extractable
internal standard recoveries less that the low control limit and greater than 10%. This exceedance resulted
in the associated detected data to be qualified as estimated.
Sediment Summary
TOC sample results associated with SDG #40230468 (Report #4281 OR), SDG #40230526
(Report #42822R). SDG #40230531 (Report #42823R), SDG #40230946 (Report #42851R),
SDG #40230971 (Report #42852R), SDG #40231452 (Report #42985R), SDG #40231455
(Report #43139R), SDG #40230985 (Report #43208R), SDG #40231009 (Report #43209R),
SDG #40232298 (Report #43467R), and SDG #40232392 (Report #43473R) exhibited MS/MSD
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recoveries greater than the upper limit. This exceedance resulted in the associated detected data to be
qualified as estimated.
TOC sample results associated with SDG #40231260 (Report #42982R). SDG #40231469
(Report #43140R), SDG #40231642 (Report #43141R), SDG #40232299 (Report #43468R),
SDG #40232401 (Report #43475R), SDG #40232457 (Report #43476R), and SDG #40232459
(Report #43477R) exhibited MS/MSD recoveries less than the lower limit. These exceedances resulted in
the associated detected data to be qualified as estimated.
TOC sample results associated with SDG #40230801 (Report #42849R). SDG #40231262
(Report #42984R), SDG #40231649 (Report #43142R), SDG #40232398 (Report #43474R) exhibited
MS/MSD recoveries greater than the upper limit and less than the lower limit. These exceedances resulted
in the associated detected data to be qualified as estimated.
PCB sample results associated with SDG #40232457 (Report #43476) exhibited surrogate recoveries that
were not reportable due to dilution of the sample. The associated detected and non-detected results were
qualified as estimated.
3.1.3 Representativeness
Representativeness is a qualitative parameter that expresses the degree to which the sample data are
characteristic of a population and is evaluated by reviewing the QC results of blank samples and holding
times. Positive detects of compounds in the associated blanks (trip blank, equipment blank, method blank)
may have been introduced into the samples during collection, transit, preparation, or analysis. The
representativeness of the dataset w as considered acceptable after integration of qualification of estimated
results.
Quality assurance (QA) blanks (i.e.. method and rinse blanks) are prepared to identify any contamination
which may have been introduced into the samples during sample preparation or field activity. Method
blanks measure laboratory contamination. Rinse blanks measure contamination of samples during field
sampling.
A blank action level (BAL) of five times the concentration of a detected compound in an associated blank
is calculated for QA blanks containing concentrations greater than the laboratory-specific estimated
detection limit. The BAL is compared to the associated sample results to determine the appropriate
qualification of the sample results, if needed.
Sample results associated with QA blank contamination that were greater than the BAL resulted in the
removal of the laboratory qualifier ("B") of data. Sample results less than the BAL associated with the
follow ing sample locations were qualified as shown below.
• Detected sample results greater than the RL and less than the BAL were qualified as "UB" at the
detected sample concentration.
• Detected sample results less than the Reporting Limit (RL) and less than the BAL were qualified
as "UB" at the RL.
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SP3™ Summary
PCB congener results for LDPE membrane associated with SDG #140-20980-1 (Report #39830R_Rev2)
exhibited method blank and rinse blank contamination. The detected LDPE membrane sample results
greater than the RL and less than the BAL were qualified as non-detect "UB". and the corresponding
SiREM-calculated Cfree results were qualified as non-detect "ND" with SiREM-applied qualifiers, if any.
The detected sample results less than the RL and greater than the BAL were qualified as non-detect "UB"
at the RL, and the corresponding SiREM-calculated Cfree results were qualified as non-detect "ND" with
SiREM-applied qualifiers, if any.
PCB congener results for LDPE membrane associated with SDG #140-20980-1 (Report #39830R_Rcv2)
exhibited ion abundance ratios, signal-to-noise values, and/or relative retention times interferences,
resulting in qualification as estimated maximum possible concentration (EMPC) and were qualified as "q"
by the laboratory. These "q" qualifiers for the congener EMPC were changed to validation qualifier "UX",
and the corresponding SiREM-calculated Cr,™ results were qualified as non-detect "ND" with SiREM-
applied qualifiers, if any.
Surface Water Summary
PCB congener sample results associated with SDG #40215465 (Report #38958R) and SDG #40218019
(Report #39547R) exhibited method blank and rinse blank contamination. The detected sample results
greater than the RL and less than the BAL were qualified as non-detect "UB". The detected sample
concentration or detected sample results less than the RL and greater than the BAL were qualified as non-
detect "UB" at the RL.
PCB congener sample results associated with SDG #40215465 (Report #38958R) and SDG #40218019
(Report #39547R) exhibited ion abundance ratios, signal-to-noise values, and/or relative retention times
interferences, resulting in qualification as EMPC. The EMPC laboratory data were qualified non-detect
"UX".
Field data generated during sampling activities were recorded in a field logbook and/or electronic forms.
These data entries were reviewed and verified in real time during field activities.
Fish Tissue Summary
PCB congener sample results associated with SDG #40227352 (Report #42517R), SDG #40227353
(Report #425 18R). and SDG #40227354 (Report #42519R) exhibited ion abundance ratios, signal-to-noise
values, and/or relative retention times interferences, resulting in qualification as EMPC. The EMPC
laboratory data were qualified non-detect "UX".
PCB congener sample results associated with SDG #40227353 (Report #42518R) exhibited ion abundance
ratios outside of the control limits. This resulted in the qualification of the associated compounds as
estimated.
Field data generated during sampling activities were recorded in a field logbook and/or electronic forms.
These data entries were reviewed and verified in real time during field activities.
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Sediment Samples
PCB Aroclor and TOC sample results associated with SDG #40230946 (Report #42851R) and SDG
#40231861 (Report #43205R) were received at the laboratory at temperatures above the preservation
criteria (6°C). These exceedances were due to delivery delays of some sample coolers to the laboratory.
This preservation exceedance resulted in the qualification of the PCB Aroclor and TOC data as estimated.
Field data generated during sampling activities were recorded in a field logbook and/or electronic forms.
These data entries were reviewed and verified in real time during field activities.
3.1.4 Comparability
Comparability is a qualitative expression of the confidence with which one dataset may be compared to
another. It provides an assessment of the equivalence of the analytical results to data obtained from other
analyses. It is important that datasets be comparable if they are used in conjunction with other datasets.
The factors affecting comparability include the following: sample collection and handling techniques,
matrix type, and analytical method. If these aspects of sampling and analysis are carried out according to
standard analytical procedures, the data are considered comparable. Comparability is also dependent upon
other precision, accuracy, representativeness, completeness, comparability, and sensitivity criteria, because
only if precision, accuracy, and representativeness are known can datasets be compared with confidence.
Sampling frequency requirements of 10% were met in obtaining field duplicates for discrete surface water
and sediment samples. The laboratory used standard analytical methods for their analyses. The analytical
results were reported in correct standard units. Sample preservation, sample integrity, and holding times
were acceptable. In conclusion, the analytical results for the samples collected during the sampling event
have good comparability.
3.1.5 Completeness
Two types of completeness were calculated for this sampling event: analytical, and field sampling. Results
indicated as not reportable by the laboratory are not included in the completeness calculations. The
following equations were used to calculate the two types of completeness:
Percent Analytical Completeness =
(Number of valid results/Number of reported results) x 100
Percent Field Sampling Completeness =
100 x (Number of samples collected/Number of planned samples)
The completeness goals were as follows:
• Analytical completeness goal was 95%.
The analytical completeness attained for the field samples was 100%. There were 29,860 results, and no
results were rejected.
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The field sampling completeness goal was 99.9%. One field sample collected for PCBs and TOC in
SDG #40230946 (Report #42851R) could not be analyzed because the sample containers were broken when
received by the laboratory. The PCB and TOC analysis for this sample was cancelled.
3.1.6 Sensitivity
Sensitivity is the ability of an analytical method or instrument to discriminate between measurement
responses representing different concentrations. The laboratory analyzed the samples using the most
sensitive methods to meet the project data quality objectives. The detection limit of solid concentrations in
sediments has been elevated due to the low precent solids in sediment samples.
3.1.7 Conclusions
The overall assessment of the field samples and QA/QC data review of the baseline sampling event dataset
concluded that project requirements and completeness levels were met. Sample results that were qualified
as estimated (UJ, J, JN, JL), non-detect due to QA blank (UB). and/or EM PC (UX) are usable with caution.
The detected sample results qualified as estimated (J. JN. JL) were included in the data evaluation for
SP3™, surface water, fish tissue, and sediment samples summarized in Sections 4 through 6. Based upon
the Stage 4 data validation, all other results are considered valid and usable for all purposes.
3.2 Data Handling and Processing
This section describes data reduction and handling methods used to prepare the laboratory analytical data
for detailed evaluation (e.g.. field duplicates, non-detects) and various data normalization techniques.
3.2.1 Field Quality Control Samples
Field QC samples were collected during the sediment and surface water sampling including field duplicates,
field triplicates, equipment blanks, trip blanks, and/or MS and MSD samples, in accordance with the 2020
FSP (CTI and Arcadis. 2020). Starting August 12. 2021. field blanks were also collected during sediment
sampling per USEPA's request (USEPA. 2021). The analytical results for MS/MSD and blank samples
were utilized in the data validation process as documented in the individual validation reports.
• SP3™ Sampling. Three field trip blanks were collected during the SP3™ sampler deployment
event on September 24,2020, by exposing three new samplers to air, light, and other ambient field
conditions for approximately 5 minutes in accordance with the LDPE Sampling SOP (i.e.,
5 minutes is the approximate maximum amount of time the SP3™ samplers are exposed to
atmospheric conditions during deployment and retrieval). These trip blanks were analyzed for
PCB congeners along with the retrieved field samplers and used to determine the PCB
concentrations in SP3™ samplers, as described in Section 4.2.
• Discrete Surface Water Sampling. During each sampling event, one MS/MSD sample, two field
duplicate samples, and two equipment blanks were collected and analyzed for PCB congeners. To
evaluate the presence of analytes in the laboratory-supplied water and clean, dedicated sample
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tubing, equipment blanks were collected by running laboratory-supplied deionized water through
a clean pump tubing and filter for an amount of volume required to fill the sample containers.
• Sediment. Twenty-five MS/MSD samples, 25 field duplicate samples, 51 field triplicate samples,
49 equipment blanks, and 14 field blanks were analyzed for PCB Aroclors and TOC. There were
22 of the 49 equipment blanks collected by rinsing laboratory-supplied deionized water over
decontaminated field equipment (i.e., metal shears used to cut the Lexan# core tubes) to verify
the effectiveness of field decontamination procedures. The remaining 27 equipment blanks were
collected by rinsing laboratory-supplied deionized water over the dedicated, disposable equipment
used during the sediment core processing (i.e., disposable aluminium foil pan. the LexanW core
tube, and disposable tongue depressor) to confirm the cleanliness of the dedicated equipment. At
USEPA's request, field blanks were collected by rinsing laboratory-supplied deionized water
through a Lexan® tube over a tongue depressor into a disposable aluminium foil pan. The
aluminium foil pan with water and tongue depressor was left undisturbed in the sediment core
processing area for the duration of collecting one sediment sample to assess whether the sediment
samples were affected by surrounding conditions during the core processing.
Field QC samples were not required for the fish tissue sampling.
3.2.2 Total PCB Concentrations
For SP3™, surface water, and fish tissue samples, the laboratory analysis was completed for 209 individual
PCB congeners. The total PCB congeners were calculated by the laboratory for each sample by adding the
detected results for individual congeners. All samples included detected results for one or more individual
PCB congeners. As discussed in Section 3.1.3. data validation involved qualifying individual PCB
congener concentrations that arc lower than the values observed in the QC blanks utilizing BAL defined in
the data validation reports.
The total PCB congeners for LDPE membranes in SP3™ samplers were validated as summarized in
Section 3.1. Because the SP3™ sampler results were used to calculate the Cfree results, the qualifiers applied
to the SP3™ samplers were applied to the calculated Cfree results for the individual congener result.
Calculated Cr,-,-,- results were then re-calculated to remove post-validation non-detect results for individual
congeners, resulting in lower total PCB congeners than the SiREM-calculated Cfree results. These post-
validation total PCB congeners were used for the data evaluation presented in Section 4.2. The non-detect
Cfrcc results were reported as the "ND" (Report #39830R_Rev2 in Appendix C).
The total PCB congeners for discrete surface water and fish tissue samples were re-calculated to exclude
the individual congener results that were reported as detects by the laboratory but were qualified as non-
detects in the data validation. For select samples, the total PCB congeners were lower than the initial
laboratory reported results. These post-validation total PCB congeners were used for the data evaluation
presented in Section 4.3 and 5. The non-detect results were reported as the detection limit of the individual
PCB congeners.
The laboratory analysis of sediment samples was completed for seven individual PCB Aroclors
(Aroclor 1016, Aroclor 1221, Aroclor 1232, Aroclor 1242, Aroclor 1248, and Aroclor 1254). The total
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Aroclor PCBs reported in the laboratory reports for individual samples were calculated by adding the
detected concentrations of individual PCB Aroclors. If analytical results for all seven PCB Aroclors were
non-detect, the total Aroclor PCBs for that sample was reported as the detection limit of the individual PCB
Aroclors and was flagged to indicate it as a non-detect total Aroclor PCB result. Following the data
validation, total Aroclor PCBs were re-calculated by excluding the detected results for individual Aroclors
that were qualified as non-detect based on data quality assessment (see Section 3.1). These post-validation
total Aroclor PCBs were used for the data evaluation presented in Section 6.
For the sediment and discrete surface water samples, the average of the detected results for parent and field
duplicate samples were used in the data evaluation. If the results for either the parent or field duplicate
sample were non-detect, only the detected result was used. If both the parent and field duplicate sample
results were non-detect, the higher of the two detection limits for both samples was used in the data
evaluation. Field triplicate sediment sample results were used in the data evaluation to evaluate the spatial
variability in the sampling area but were not used to estimate the surface weighted average concentrations
(SWACs), as described in Section 6.2.
Based on the distribution of total PCBs upstream and downstream of the former CFC facility, particularly
the increase in surface water concentrations in downstream direction between the upstream sample locations
and Bowen Road bridge, and physical characteristics of the river, notably the transition from higher to
lower gradient starting at West Marr Road, the Site is divided into the following five sections to present the
data evaluations in Sections 4, 5, and 6:
• Upstream of the former CFC facility
• Near former CFC facility between Highway M-59 and Bowen Road
• Bowen Road to West Marr Road
• West Marr Road to Chase Lake Road
• Chase Lake Road to Steinacker Road.
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4.0 WATER COLUMN DATA EVALUATION
As summarized in Section 2.1, time-averaged surface water samples using SP3™ passive samplers and
field-filtered discrete surface water samples were collected at 12 locations (Figure 2-1). Two rounds of
discrete surface water sampling were completed at each of 12 locations: one in conjunction with
deployment and one in conjunction with retrieval of the SP3™ samplers. SP3™ samplers were deployed
for approximately 44 to 45 days. The surface water data collected were PCB congener concentrations in
surface water at a series of locations from upstream of the former CFC facility and to downstream locations.
Paired with estimates of flow at each monitoring station, these data also made possible estimates of PCB
load gain between surface water monitoring stations (e.g., the amount of PCBs entering the river between
each monitoring station). The measurements also provide baseline data for possible future monitoring (CTI
and Arcadis, 2020). The discrete surface water sample data were collected to provide baseline data for
future monitoring and were also compared to historical data to assess changes over time in surface water
PCB concentrations.
4.1 Field Conditions
Field data collected during sampling activities arc summarized in Tables 2-1 and 4-1. The ordinary high
water mark channel width ranged from approximately 19 to 3 1 ft (Table 2-2). with narrower channel widths
(19 to 22 ft) measured at four sample locations between M-59 and the Bowen Road bridge. Water depths
at the channel thalweg ranged from approximately 1.1 to 3.0 ft. Flow velocities ranged from approximately
0.25 to 1.1 ft per second (ft/s) and 0.27 to 1.2 ft/s during Round 1 and Round 2 sampling, respectively
(Table 2-2). During the Round 1 sampling event, water depths at the eight sample locations between
Bowen Road bridge and Chase Lake Road bridge (BR-04 through BR-09, MR-03, and CL-02) were lower
(approximately 1.1 to 1.9 ft) than other sample locations (UP-11, UP-12, BR-10, and SR-01), with water
depths ranging from 2.3 to 2.9 ft. During the Round 2 sampling event, water depths 0.1 to 0.2 ft higher
than the Round 1 sampling event were recorded at all sampling locations, except at BR-04, BR-06, and CL-
02. For both sampling events, the flow velocities were lowest at both upstream locations (UP-11 and
UP-12). as compared to the other sampling locations at the Site (Table 2-2).
Field-measured pH was similar during both sampling events, ranging from 7.15 to 9.12 standard units.
However, specific conductivity, turbidity, and dissolved oxygen measurements were typically higher for
the Round 2 sampling event (Table 4-1). Specific conductivity measurements in Round 1 and Round 2
sampling events ranged from 0.44 to 0.47 milliSiemens per centimeter (mS/cm) and 0.67 to 0.75 mS/cm,
respectively. Turbidity measurements in Round 1 and Round 2 sampling events ranged from 0 to
2.4 Nephelometric Turbidity Units (NTU) and 1.4 to 6.1 NTU, respectively. Dissolved oxygen
measurements in Round 1 and Round 2 sampling events ranged from 7.5 to 11 milligrams per liter (mg/L)
and 9.5 to 13 mg/L. respectively. Analytical results for time-averaged and discrete samples are summarized
in Tables 4-2 through 4-4 and are discussed below.
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4.2 Passive Sampling Results
4.2.1 Calculation of Freely Dissolved PCB Concentrations in Surface
Water
In accordance with the 2020 FSP (CTI and Arcadis, 2020), SP3™ samplers were deployed at 12 sample
locations for approximately 44 to 45 days. The SP3™ samplers are passive samplers and the concentrations
of PCBs on the sampling media reflect the average concentrations of dissolved PCBs that were detected
during the sampling period (Burgess, 2012). The sampling media was analyzed for 209 individual PCB
congeners. As described in Section 2.1, all SP3™ samplers were spiked with 10 PRCs prior to the
deployment. Following sampler deployment, as the sampler absorbs native PCBs, the sampler is also
releasing PRCs at similar rates. The equilibrium status of the sampler is then estimated based on the PRCs
present at the start of deployment and the PRCs remaining after the sampler retrieval (Burgess, 2012).
To estimate the Cfree in SP3™ samplers, the following steps outlined in Attachment A of Appendix C (SDG
#140-20980-1) were followed:
Step 1:
Using these LDPE results, the elimination rate values (kc) for the PRCs, and non-PRC congeners were
estimated for each sampler using Equation 1 below (Lohmann. 2012).
Equation 1:
nPRC x
Inf PE't=0 ~)
l[ly^PRCx )
lrPRC x _ PE,t=final
IV o
6 t
where:
kgRCx = the elimination rate value for PRCX (in days ');
CpEj^=o = the average concentration of the PRCX in the LDPE at the beginning of the deployment
(obtained from an average measurement of the PRC control blanks);
CpEx=finai = the concentration of the PRCX in the LDPE after the deployment (obtained from each
deployed LDPE sampler): and
t = the duration of the deployment (in days).
Step 2:
To estimate kc values for the non-PRC primary PCBs in each of the deployed samplers, a linear regression
model was developed for each sampler using log transformed ke values for all PRCs (dependent variable,
from Table A2 in Appendix B) and the associated log-transformed PE-water partition coefficients (Kpe)
(independent variable; Smedes et al., 2009). Note that regression models were specific to each sampler
(i.e., not global to the whole deployment) because local geologic and hydrodynamic conditions vary within
the Site.
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Step 3:
Concentrations of non-PRC primary congeners in LDPE sampler were corrected for trace levels of those
congeners identified in the trip blank samplers. Using the sampler specific ke values, the expected amount
of these trace primary PCBs present in the sampler at the end of deployment was estimated using Equation 2
below.
Equation 2:
pPCB,trace
rPCB,trace _ LPE,t=0
PE,t=final ~ ekext
where:
CpE t'= final = t'lc concentration of trace PCBs remaining in the LDPE sample at the end of the
deployment;
CpEt'= o = the average concentration of the trace PCB in the LDPE at the beginning of the
deployment (obtained from an average measurement of the trace PCBs in the PRC control blanks);
ke = the elimination rate value predicted by the sampler-specific regression model (in days '): and
t = the duration of the deployment (in days).
CpE t'= final values were then subtracted from the measured concentrations of non-PRC primary PCBs in
LDPE (see Table A1 in Appendix B).
Step 4:
A sampling rate correction factor (CF) was calculated for each non-PRC primary PCB in each sampler.
Equation 3 was used, as adapted from Lohmann (2012).
Equation 3:
1
CF —
1 - ekext
where:
ke = the elimination rate value predicted by the sampler-specific regression model (in days '): and
t = the duration of the deployment (in days).
Step 5:
The concentration of primary analyte in the LDPE of each sampler (obtained from Table A1 in
Appendix B) were multiplied by the CF values to calculate the steady-state concentration of primary
analytes per Equation 4 below.
Equation 4:
^PCB,primary
„PCB,primary _ PE,t=final
PE,steady state ~ ^ _ ekext
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where:
CpE^=finaYy = t'lc nonequilibrium concentration of primary PCBs measured in the LDPE sample
at the end of the deployment.
Step 6:
In the final step, the steady-state concentrations are divided by Kpe values (Smedes et al.. 2009) to obtain
the concentrations of Cfree for the primary analytes per Equation 5 below.
Equation 5:
~PCB,primary
n _ PE,t=final
free ~ (1 - eke>
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Cfree results of 41.1 ng/L and 40.6 ng/L, respectively. These results indicate that water column
concentrations begin to decrease downstream of West Marr Road bridge (RS 196+50). This pattern is
shown on Figure 4-1. The data are presented in Table 4-2.
Prior sediment removal activities at the Site consisted of removing oil-stained sediment from approximately
M-59 to approximately 1,000 ft downstream of Bowen Road (Figure 3 in the 2020 FSP |CTI and Arcadis,
2020]). The calculated total PCB Cfree results for this section of the river indicate the presence of a source
contributing dissolved PCBs to the surface water. The data also indicate that contributions of dissolved
PCBs were present between Bowen Road and West Marr Road.
4.2.3 PCB Congener Mass Contribution to Freely Dissolved PCB
Concentrations
The most frequently detected PCB congeners in SP3™ samples included PCB-20/28, PCB-49/69, PCB-64,
PCB-66, PCB-86/87/97/109/119/125, PCB-90/101/1 13. PCB-92. PCB-95, PCB-110/115,
PCB-129/138/160/163, PCB-132, PCB-135/151. PCB-147/149. PCB-153/168. PCB-174, and PCB-187,
with a frequency of detection of 100%.
Examination of the contribution to mass fraction of PCB homologue groups appears to show a shift from
upstream to downstream (Figures 4-2a through 4-21). The two upstream samples collected between
RS -4+45 and RS 0+00 (UP-12 and UP-11). as well as the most upstream sample collected adjacent to the
former CFC facility at RS 6+80 (BR-10). have the highest mass fractions of tetrachlorobiphenyl,
pentachlorobiphenvl. and hexachlorobiphenyl congeners. These congeners contributed to approximately
87% to 93% of total PCB congeners at these sampling locations.
Two samples collected adjacent to the former CFC facility at RS 12+50 (BR-09) and at RS 18+00 (BR-08)
have the highest mass fractions of dichlorobiphenvl congeners, followed by monochlorobiphenyl
congeners. The remaining seven samples collected between RS 25+90 (BR07) and 423+40 (SR-01) had
the highest mass fractions of dichlorobiphenvl congeners, followed by trichlorobiphenyl congeners. For
these nine samples, monochlorobiphenyl, dichlorobiphenyl, and trichlorobiphenyl congeners contributed
to approximately 76% to 94% of total PCB congeners.
Nine of 12 SP3™ samples collected between the former CFC facility (RS 12+50) and Steinacker Road (RS
425+00) indicated 2.2'-dichlorobiphenvl (PCB-4) constitutes the highest mass fraction in these samples,
ranging from 18% to 32% of total PCB congeners (Figure 4-2). PCB-4 is a dichlorobiphenyl congener.
PCB-1 (2-chlorobiphenvl) was detected as the second highest mass fractions in 6 of 12 samples collected
between RS 12+50 (BR-09) and RS 66+00 (BR-04; ranging from 10% to 22% of total PCB congeners).
Mono- and di-chlorobiphenyl congeners contributed approximately 42% to 77% of total PCB mass in the
samples (Figures 4-2a through 4-21).
As shown on Figures 4-1 and 4-3, the pattern of PCB-4 concentrations across the nine sampling stations
between RS 12+50 (BR-09) and RS 425+00 (Steinacker Road) is consistent with the pattern of total PCB
congeners for all samples, reflecting its high mass content in calculated total PCB Cfree results. The
comparison of calculated Cfree results for individual congeners and total PCBs indicated that the distribution
of individual PCB congener mass in two samples (UP-12 and UP-11) and BR-10 may be different than the
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remaining nine samples. Calculated Cfree results from the three upstream-most sample locations (UP-12,
UP-11, and BR-10) exhibit consistent detections in the penta- and hexachlorobiphenyl homologue groups.
Examination of Figures 4-2a through 4-2j suggest a shift in congener mass distribution occurs starting at
BR-09, where mono- and dichlorobiphenyl congeners constitute most of the PCB mass detected. This shift
suggests a potential PCB source in sediment between RS 6+80 (BR-10) and RS 12+50 (BR-09).
4.3 Discrete Surface Water Samples
Concentrations of dissolved total PCB congeners for the Round 1 and Round 2 sampling events ranged
from 0.00379 J to 31.9 J ng/L and from 0.0177 J to 33.9 J ng/L. respectively (Tables 4-3 and 4-4. and
Figure 4-1). As summarized in Table 4-5, total PCB congeners were detected in all samples collected in
Round 1 and Round 2 sampling events, with a median concentration of 5.29 ng/L (excluding samples
collected at the upstream locations). Concentrations of total PCB congeners in surface water samples
collected upstream of the M-59 bridge (UP-12 and UP11) were lower than the other stations and were
similar for both sampling events (0.0177 J to 0.170 J ng/L).
For the Round 1 sampling event, seven samples (BR-04 through BR-10) collected between the M-59 bridge
(RS 0+00) and Bowen Road bridge (RS 67+00) indicated increasing total PCB congener concentrations
from the upstream to downstream direction (0.00379 J to 3 1.9 J ng/L). This increase in concentrations of
total PCB congeners in discrete surface samples is consistent with the calculated total PCB Cfree results for
this stretch of the river. For the Round 1 sampling event, two samples (BR-05 at RS 58+80 and BR-04 at
RS 66+00) collected upstream of the Bowen Road bridge (RS 67+00) and the sample (MR-03 at 198+00)
collected at the West Marr Road bridge (RS 196+50) exhibited higher concentrations of total PCB
congeners than those collected between RS 4+45 and RS 58+80, at RS 367+00 (immediately upstream of
Chase Lake Road bridge), and at RS 423+40 (immediately upstream of Steinacker Road bridge).
During Round 1. the highest concentration of total PCB congeners (31.9 ng/L) was detected in sample
collected immediately upstream of Bowen Road bridge (BR-04 at RS 66+00). Samples collected during
Round 2 at Chase Lake Road bridge (CL-02; 23.3 J ng/L4) and Steinacker Road bridge (SR-01; 33.0 J ng/L)
indicated higher PCB concentrations than the 10 samples collected upstream of Chase Lake Road bridge,
which ranged from 0.0177 J to 13.1 J ng/L. Comparison of Round 1 and Round 2 sample results indicated
variations in the pattern of total PCB congener results for sampling locations located between Bowen Road
bridge (BR-04 at RS 66+00) and Chase Lake Road bridge (CL-02 at RS 367+00) (Figure 4-1). The highest
detected concentration during Round 1 sampling was at the Bowen Road bridge (BR-04 at RS 66+00), with
detections decreasing in the downstream direction. During Round 2, however, total PCB congener results
increased in the downstream direction, with the highest detected concentration found at Steinacker Road.
PCB concentrations in discrete surface water samples collected from Round 1 and Round 2 did not indicate
a clear pattern for samples collected at the Bowen Road bridge (BR-04 at RS 66+00) or downstream of
Bowen Road bridge (Figure 4-1). The high RPD in measured water concentrations between the two
4 Parent and duplicate sample results were averaged.
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sampling rounds could potentially be attributed to changes in local hydrodynamic conditions, as evidenced
by variations in the discharge rates estimated for Round 1 and Round 2 (Figure 4-4).
4.3.1 PCB Congener Mass Contribution to Total Water Column PCB
Concentrations
The most frequently detected PCB congeners in Round 1 samples included PCB-132and PCB-90/101/113,
with a frequency of detection greater than 80%. For the Round 2 sampling event, the most frequently
detected PCB congeners included PCB-40/41/71, with a frequency of detection greater than 80%.
Similar to the Cfree results, the comparison of the contribution to mass fraction of PCB homologue groups
appears to show a shift from upstream to downstream (Figures 4-2a through 4-21). At sample locations
UP-12 (RS -4+45), UP-11 (RS 0+00), and BR-10 (RS 6+80). both Round 1 and Round 2 samples indicated
highest mass fractions of tetrachlorobiphenyl, pentachlorobiphenvl. and/or hexachlorobiphenyl congeners.
These congeners contribute approximately 79% to 100% of total PCB congeners in samples collected
during Round 1 and Round 2. The sample collected at CL-02 (RS 367+00) during Round 2 had a higher
mass fraction of trichlorobiphenyl and pentachlorobiphenvl congeners than the Round 1 samples at the
same location, which had a higher mass fraction of dichlorobiphenvl and trichlorobiphenyl PCB congeners;
some of this difference may be attributed to water temperatures at the time of collection, which were lower
during Round 2 than Round 1. At the remaining sampling stations, the distribution of PCB congeners was
similar for Round 1 and Round 2 samples, with monochlorobiphenvl. dichlorobiphenyl, and
trichlorobiphenyl congeners contributing approximately 61% to 100% of total PCB congeners. The
distribution of PCB congeners in these samples w as consistent with the PCB congener distribution in Cfree
results (Figures 4-2a through 4-21).
Eight of 12 samples collected during the Round 1 sampling event indicated PCB-4 constitutes the highest
mass fraction in these samples, ranging from 25% to 42% of total PCB congeners (Figure 4-2). For the
Round 2 sampling event. 8 of 12 samples were consistent with this pattern, where PCB-4 contributed from
15%) to 48%) of total PCB congeners (Figure 4-2). PCB-1 (2-chlorobiphenyl) was detected at second
highest mass fractions in 7 of 12 samples collected in each sampling event (ranging from 9% to 24% and
7% to 35%) of total PCB congeners for Round 1 and Round 2 samples, respectively).
As shown on Figures 4-1 and 4-3. the PCB-4 concentration profile is consistent with the distribution of
total water column total PCB congeners for Round 1 and Round 2 samples, except for MR-03 and CL-02.
At MR-03 (RS 198+00). total PCB congeners were higher in Round 1 than in Round 2; however, PCB-4
detected in the Round 2 sample was higher than in Round 1 sample. At CL-02 (RS 367+00), total PCB
congeners in Round 2 were higher than the MR-03 sample; however, PCB-4 in this sample was lower than
MR-03 sample.
4.4 Total PCB Load Gain Analysis
By evaluating the load of PCB (in milligrams per day [mg/day]) carried by the river at each sampling station
using measured concentrations and flow, the gain in load between sampling stations can provide an
indication of which stretches of river have relatively higher and lower contributions of PCBs to the surface
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water. This use of the data is described in the data quality objectives outlined in the 2020 FSP (CTI and
Arcadis, 2020). Load gain was calculated using the Cfree total PCB results, which have the advantage of
providing an indication of average conditions over the sampling period, whereas discrete samples may
potentially be subject to short term variations present at the time of sample collection. The flow values
used in the calculations were an average of the Round 1 and Round 2 flow measurements. A limitation of
this approach is that the Cfree-based load gain estimates are not based on a continuous measurement of flow
with which to compute the average flow. The average of the Round 1 and Round 2 flow values arc used
for this purpose.
The total PCB load gain (Table 4-6) was calculated using initial flows estimated from field data collected
during surface water sampling activities (including channel width, water depth at thalweg, and flow velocity
at the mid-depth of the thalweg) and calculated Cfree results (T able 4-2) using the following steps:
Step 1 - Flow Calculation at Each Station:
Flows were calculated by multiplying channel width, water depth, and mid-depth velocity at each sample
location (see Equation 6). Discharge rates for SP3™ sample locations were estimated by averaging
calculated flows based on Round 1 and Round 2 sampling events.
Equation 6:
Qchannel ~ W Dv
where:
Qchannel = discharge rate in channel (cubic feet per second |cfs|):
W = channel width (feet):
D = water depth (feet): and
v = mid-depth flow velocity (feet per second).
Flow calculations based on measured river parameters from both sampling events are presented in
Table 4-6. Estimated discharge rates are presented on Figure 4-4. Two of 12 sample locations (BR-SW-
07 and CL-SW-02) had higher estimated discharge rates during Round 1 than during Round 2. The
remaining locations have the highest estimated discharge rates during Round 2.
The calculated average discharge rates varied across the sample locations with decreasing discharge rates
in downstream directions at 8 of 12 sample locations (Figure 4-4). For these sample locations, a distance-
weighted average discharge rate was calculated using the average discharge rates estimated for an upstream
sample location and for the downstream location with an average discharge rate more than the upstream
sample location (see Equation 7).
Equation 7:
(Qf ~ Qi)
Qavg — Qi + (RS.s
L(RSf - RS,)\
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where:
Qavg = average discharge rate in channel at a given sample location (cfs);
Q[ = average discharge rate at sample location immediately upstream (cfs);
Qp = average discharge rate at sample location located downstream with discharge rate greater
than Qi (cfs);
RSs = River stationing (feet) at a given sample location;
RSF = River stationing (feet) at downstream sample location: and
RS[ = River stationing (feet) at upstream sample location.
Step 2 - Load Calculation:
The PCB loading at each sample location was estimated using Equation 8. provided below. PCB load
results for Round 1 and Round 2 samples were based on dissolved PCB concentrations measured at each
location during each respective sampling event. SP3™ PCB loads were derived by multiplying calculated
Cfree results and averaged Round 1 and Round 2 discharge rates at each sample location.
Equation 8:MLPCB = 2A5Qa:vgCPCB
where:
MLpcb = PCB mass loading (mg/dav):
2.45 = unit conversion: and
CpcB = dissolved PCB concentration (ng/L).
PCB load results are presented in Table 4-7.
Step 3 - Load Gain Calculation:
To express the PCB load gain based on distance along the stream, the calculated load gain was divided by
the distance between sampling stations, as shown in Equation 9.
Equation 9:
MLprF! F MLpcp,,
PCB Load Gain =
RSp — RSj
where:
MLrcb,f = PCB mass loading (mg/day) at downstream sample location;
W^pcb,/ = PCB mass loading (mg/day) at upstream sample location;
RSp = River stationing (feet) at downstream sample location; and
RS[ = River stationing (feet) at upstream sample location.
PCB load gain results for SP3™ sampling are presented in Table 4-7 and on Figure 4-5.
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The results of the dissolved PCB load gain calculation based on the Cfree results are shown on Figure 4-5.
Sample locations associated with road crossings include a label: M-59 (RS 0+00), Bowen Road
(RS 67+00), West Marr Road (RS 196+50), Chase Lake Road (RS 368+00), and Stcinacker Road
(RS 425+00). Distance intervals are labeled by the location IDs included in the load gain calculation.
Examining the results expressed as gain per foot along the river (Figure 4-5) indicates that the Cfree total
PCB load gain upstream of the former CFC facility is estimated at 0.029 milligram per day per foot
(mg/day-ft). From the Site-adjacent sampling station (UP-SW-11) to the first sampling station downstream
of M-59 (BR-SW-10), the load gain is minimal, at approximately 0.002 mg/day-ft. Within the area that
dredging was previously conducted in 1982, the load gain increases several orders of magnitude to
approximately 1.18 mg/day-ft (BR-SW-10 to BR-SW-09). At the following distance interval (BR-SW-09
to BR-SW-08), located downstream from a tributary, the load gain decreases to 0.03 mg/day-ft. A sharp
increase to 0.90 mg/day-ft is shown at BR-SW-08 to BR-SW-07. followed by reductions in load gain of
approximately 0.3 mg/day-ft over each of the next two distance intervals (BR-SW-07 to BR-SW-06 and
BR-SW-06 to BR-SW-05). Load gain continues to decrease by approximately 0.1 mg/day-ft along each of
the next two intervals located upstream (BR-SW-05 to BR-SW-04) and downstream (BR-SW-04 to MR-
SW-03) of Bowen Road. The load gain reaches the minimum of -0.015 mg/day-ft downstream of West
Marr Road (MR-SW-03 to CL-SW-02) and remains minimal, with a load gain of 0.01 mg/day-ft at the
subsequent distance interval (CL-SW-02 to SR-SW-01).
The load gain analysis suggests a source of residual dissolved PCB contributions to the water column is
located adjacent to the former CFC facility, within the area previously targeted by dredging. Estimated
load gain downstream from this area is somewhat variable, but generally decreases moving in the
downstream direction. Examination of available data indicates there are several tributaries connecting to
the Shiawassee River between M-59 and Stcinacker Road. Because the estimated load gain includes the
use of distance-weighted discharge rates based on discrete flow measurements from both Round 1 and
Round 2 sampling events paired with time-averaged Cr,-,-,- results to calculate load gain, the use of a steady
flow assumption for estimates of discharge may also provide uncertainty if unsteady flow conditions are
typical at these locations.
4.5 PCB Composition Analysis
PCB composition analysis was performed to evaluate whether composition shifts in total PCB makeup in
the water column occur between different reaches, which may reflect other sources of PCBs and/or different
proportions of weathered PCBs contributing to the water column. The weathering of PCBs in natural
environment has been observed in prior research (Sivey and Lee, 2007), with higher proportions of lower-
chlorinated congeners present in deeper sediment, indicating the occurrence of PCB weathering via
reductive dichlorination in the aquatic environment.
Multivariate analysis (Le et al. 2008) including Principal Component Analysis (PCA) and cluster analysis
was completed to evaluate the PCB homologue signature in SP3™ and surface water samples (Figure 4-6).
PCA is a useful technique for reducing the dimensionality of a dataset with a large number of interrelated
variables. For this evaluation, 11 samples with total PCB congener results less than 1 ng/L were excluded
which included SP3™ and Round 1 and Round 2 surface water samples at three upstream-most sample
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locations (UP-12, UP-11, and BR-10), Round 2 surface water sample at BR-04, and Round 1 surface water
sample at CL-02. Additionally, field duplicate samples were not included in this evaluation due to the
difference in total PCB congeners for parent (12.7 J ng/L) and field duplicate pair for CL-SW-02
(33.9 ng/L) from Round 2. Prior to the PCA, congener results were converted to percent of total PCBs,
summed by PCB homologue groups, and standardized to zero mean and unit standard deviation.
Based on the result of the PCA, the first three components were retained which indicate 83.1% of the
variance (PCI = 47.6%; PC2 = 21.5%; PC3 = 12.2%). The scree plot included on Figure 4-6 was used to
determine the number of principal components (PCs) to include in the PCA by identifying the elbow of the
curve where the eigen values level off. Figure 4-6 presents a PCA biplot depicting the first two PCs which
express 69.1% of the variability. PCA scores (points) provide for interpreting relationships among samples.
PCA loadings (arrows) provide for interpreting relationships among variables:
• Variables (loadings) which are close have high correlation.
• Samples (scores) which are close arc similar.
• Variables on opposite side of origin have negative correlation.
PCI separates samples with higher proportions of the higher chlorinated PCB congeners (e.g.,
trichlorobiphenyl and tetrachlorobiphenyl) from less chlorinated PCB congeners (e.g., monochlorobiphenyl
and dichlorobiphenyl). PC2 separates samples with higher proportions of hexachlorobiphenyls and
heptachlorobiphenyls, and decachlorobiphenvls.
Agglomerative hierarchical clustering analysis (HCA) was then performed on the retained PCs of the PCA
using the Ward Method. Use of the PCs to support the HCA can be viewed as a "de-noising" method to
separate signal and noise in the dataset. The HCA groups results into subsets (or clusters) that are more
like each other than to those in other groups or clusters. Number of clusters was determined by inspection
of dendrogram illustrating which clusters have been joined at each stage of the analysis and the distance
between clusters at the time of joining. The data points were assigned to four distinct clusters as described
below:
• Cluster 1 consists of two SP3™ samples and five surface water samples collected at five sampling
locations adjacent to and downstream of the former CFC facility (between RS 12+50 [BR-09] and
RS 58+80 | BR-051). This group is characterized by less chlorinated PCB congeners:
o Higher proportions of monochlorobiphenyl and dichlorobiphenyl congeners (sorted from the
strongest): and
o Lower proportions of trichlorobiphenyl, tetrachlorobiphenyl, pentachlorobiphenyl and
hexachlorobiphenyl congeners (sorted from the weakest).
• Cluster 2 consists of four surface water samples collected adjacent to and downstream of the former
CFC facility (between RS 12+50 [BR-09] and RS 42+00 [BR-06]). This group is characterized by:
o Higher proportions of hexachlorobiphenyl, decachlorobiphenyl, and heptachlorobiphenyl
congeners (sorted from the strongest).
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• Cluster 3 consists of samples collected primarily from the downstream areas of the Site, which
included four SP3™ samples between RS 25+90 (BR-07) and RS 66+00 (BR-04) and seven surface
water samples collected between RS 58+80 (BR-05) and RS 423+40 (SR-01). This group is
characterized by:
o Higher proportions of tetrachlorobiphenyl and trichlorobiphenyl congeners (sorted from the
strongest); and
o Lower proportions of monochlorobiphenyl congeners.
• Cluster 4 includes three SP3™ samples collected downstream of West Marr Road bridge between
RS 198+00 (MR-03) and RS 423+40 (SR-01). This group is characterized by:
o Higher proportions of octachlorobiphenyl. nonachlorobiphenvl. trichlorobiphenyl. and
tetrachlorobiphenyl congeners (sorted from the strongest): and
o Lower proportions of dichlorobiphenvl and monochlorobiphenyl congeners (sorted from the
weakest).
A PCA biplot was generated with PCI and PC2 as axes and data points grouped into the above four clusters
(Figure 4-6). The first three components of the PCA were retained which indicate 83.1% of the variance
(PCI =47.6%; PC2 = 21.5%; PC3 = 12.2%). The deviation in the homologue groups for Cluster 4 indicates
that the source of PCBs entering the water column downstream of West Marr Road bridge may differ from
the other sampling locations. The PCB homologue profile plot demonstrates the shift in the PCB
composition moving in the downstream direction from the former CFC facility, from less chlorinated PCB
congeners (monochlorobiphenyl and dichlorobiphenvl) to higher chlorinated PCB congeners
(trichlorobiphenyl. tetrachlorobiphenyl. and pentachlorobiphenyl). This could reflect a greater proportion
of weathered versus un-weathered PCBs entering the w ater column, or potentially a difference in the PCB
source material that is in the river svstem at this location.
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5.0 FISH TISSUE DATA EVALUATION
This section summarizes the results of the 2021 fish tissue PCB sampling at five locations along the
Shiawassee River: upstream of M-59 (ISM-29), ISM-M1-27, Bowen Road, West Marr Road, and Chase
Lake Road (Figure 5-1). In accordance with the 2020 FSP (CTI and Arcadis. 2020). sampling was
conducted in areas where historical fish tissue data exist to allow evaluation of changes over time and to
provide baseline data for future monitoring.
During fish tissue sampling, fish community composition was evaluated at each location during a single
pass of the entire sampling extent using backpack electrofishing equipment. Fish were captured and placed
live in a holding net at each location and identified, counted, and measured (total length). This was done
to determine the appropriate target species to collect for tissue sampling, and to inform future fish collection
efforts during LTM. Fish not retained for PCB analysis were released live back to the river. The fish
community data presented in Tables 5-1 through 5-5 show that the predominant edible-size adult fish
species available for tissue collection in the Shiawassee River at all locations were rock bass and white
sucker. A limited number of adult edible-size sunfish. Northern pike, and common carp were also observed,
but not at every location. No smallmouth bass of any size were observed during the fish tissue sampling
and fish community composition evaluation.
Fish collected for the fish community survey (Tables 5-1 through 5-5) were evaluated to identify target
and substitute species abundance for laboratory analysis based on the target size classes identified in
Table 3-1 of the 2020 FSP (CTI and Arcadis. 2020). The samples selected for laboratory analysis included
25 white sucker samples exceeding 30.5 centimeters (> 12 inches), except one white sucker sample of
28.7 centimeters (approximately 11.3 inches) collected at ISM-MI-27 (Table 5-6). Panfish samples
selected for laboratory analysis included 23 rock bass samples ranging between 15.3 and 23.0 centimeters
in length (approximately 6 to 9 inches), four pumpkinseed samples ranging from 14 to 16.2 centimeters
(approximately 5.5 to 6.4 inches), and three bluegill samples ranging from 15.1 to 16.8 centimeters
(approximately 5.9 to 6.6 inches). Only one rock bass sample of23.0 centimeters (> 9 inches) was observed
during the community survey (and during the additional sampling effort immediately following the
community survey). Therefore, the remaining 22 rock bass samples smaller than the target size of
23 centimeters (approximately 9 inches) were selected for laboratory analysis. Additionally, one
pumpkinseed sample of 14 centimeters in length and one bluegill sample of 15.1 centimeters in length were
collected for laboratory analysis and did not meet the target size exceeding 15.3 centimeters (> 6 inches).
Wet-weight PCB concentrations, lipid content, and lipid-normalized PCB concentrations are summarized
in Tables 5-7, 5-8, and 5-9, respectively, for 25 white sucker and 30 panfish (including 23 rock bass,
four pumpkinseed. and three bluegill) samples collected in 2021. The process of lipid normalizing is
commonly used in the assessment of gradients and trends in fish PCB levels because the fat content in fish
generally accounts for much of the variation in wet-weight PCB concentrations within and between species.
In addition, the confidence limits around the arithmetic mean tend to become smaller when data are adjusted
for lipid content. Evaluation of both wet-weight and lipid-normalized PCB fish tissue concentrations is
used in evaluation of fish tissue data (Great Lakes Commission, 2003), especially when large variation in
lipid content may occur temporally, such as that discussed in Santini et al., 2015.
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The baseline fish samples were not collected for the purpose of adjusting fish consumption advisories, as
the State of Michigan is responsible for sampling and issuance of any revisions to the advisories. The
current advisories remain in place and should be followed until adjusted by the State. As a part of this
evaluation, concentrations of wet-weight total PCB congeners in fish samples were compared to the fish
consumption advisory for the "Do Not Eat" meal category (2.7 mg/kg; Michigan Department of
Community Health, 2016) as a line of evidence indicating progress toward reducing risks to fish consumers.
The advisories are established, maintained, and reviewed independently by the State of Michigan for citizen
safety.
5.1 Fish Tissue Summary
PCBs were detected in each of the 25 white sucker and 30 panfish samples. Boxplots depicting total PCBs
by species and location are presented on Figure 5-1 for wet-weight PCBs and Figure 5-2 for lipid content
in 2021 fish tissue samples, and Figure 5-3 for lipid-normalized PCBs.
Concentrations of wet-weight total PCB congeners for all sample locations ranged from 0.231 mg/kg (ISM-
29) to 1.720 mg/kg (Bowen Road) in white suckers and 0.0188 mg/kg (ISM-29) to 0.851 mg/kg (West Marr
Road) in panfish (Table 5-6 and Figure 5-1). Excluding the samples collected at the upstream location
(ISM-29), average and median wet-weight PCB concentrations for white suckers (0.781 mg/kg and
0.624 mg/kg, respectively) were higher than those for panfish (0.476 mg/kg and 0.5 19 mg/kg, respectively).
Wet-weight PCB concentrations for white suckers were highest in fish tissue samples collected at Bowen
Road (range of 1.34 mg/kg to 1.72 mg/kg and mean of 1.51 mg/kg) and lowest in fish tissue samples
collected at Chase Lake Road (range of 0.298 mg/kg to 0.717 mg/kg and mean of 0.465 mg/kg)
(Figure 5-1). Wet-weight PCB concentrations for panfish were highest at West Marr Road (range of
0.394 mg/kg to 0.851 mg/kg and mean of 0.585 mg/kg) and lowest in fish tissue samples collected at the
upstream location (ISM-29. range of 0.0188 mg/kg to 0.643 mg/kg and mean of 0.175 mg/kg) (Figure 5-1).
Lipid content for all sample locations ranged from 0.25%(ISM-Ml-27)to 1.49% (ISM-29) in white suckers
and 0.11% (Chase Lake Road) to 0.78% (West Marr Road) in panfish (Table 5-8 and Figure 5-2). Average
and median lipid content for white suckers (0.644% and 0.530%) were higher than those for panfish
(0.333% and 0.3 15%) (Figure 5-2).
Concentrations of lipid-normalized total PCB congeners for all sample locations ranged from 32.1 to
374 milligrams per kilogram lipid (mg/kg-lipid) in white suckers and 6.86 to 471 mg/kg-lipid in panfish
(Table 5-9 and Figure 5-3). Sampling results indicated that average and median lipid-normalized PCB
concentrations (147 mg/kg and 128 mg/kg-lipid) in panfish were higher than white suckers (126 mg/kg-
lipid and 107 mg/kg-lipid). Excluding the samples collected at the upstream location (ISM-29), average
and median lipid-normalized PCB concentrations for panfish (170 mg/kg-lipid and 137 mg/kg-lipid,
respectively) were higher than those for white suckers (137 mg/kg-lipid and 112 mg/kg-lipid, respectively).
Average lipid-normalized PCB concentrations in white sucker were highest at Bowen Road (208 mg/kg-
lipid), while average lipid-normalized PCB concentrations in panfish were highest at Chase Lake Road
(265 mg/kg-lipid). Average lipid-normalized PCB concentrations were lowest for all species sampled
upstream of the former CFC facility at ISM-29, with concentrations of 80.3 mg/kg-lipid in white sucker
tissue and 53.6 mg/kg-lipid in panfish.
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Correlation plots shown on Figures 5-4 and 5-5 indicate a statistically significant (p <0.05) relationship
between PCB concentrations and lipid content for Site-wide white sucker tissue; however, there is no
statistically significant correlation for these variables present in Site-wide panfish samples (p = 0.72).
Additionally, there is no correlation between lipid content and fish length or weight for both white sucker
(p = 0.199 for lipid content vs. length; p = 0.632 for lipid content vs. weight) and panfish species (p = 0.554
for lipid content vs. length; 0.694 for lipid content vs. weight), as shown on Figures 5-4 and 5-5.
5.2 Spatial Patterns
Multiple factors affect fish bioaccumulation of PCBs and impart variability in observed fish tissue
concentrations for a given species, including fidelity of the collected fish to the sample location, availability
of prey, differences in PCB concentrations in prey species, and differences in diet, habitat quality, and other
factors. These other factors include the physiology, age. sex. life history, spawning, metabolic rate, lipid
content, migratory and other behavioral patterns of individual fish, and these differences among species
contribute to differences in results between species (Exponent. 2003). The potential influence of these
factors imparts uncertainty to the evaluation of spatial and temporal variations in fish PCB concentrations.
Average wet-weight PCB congeners concentrations in white sucker fish tissue were highest at the Bowen
Road sampling location immediately downstream of the former CFC facility (1.51 mg/kg) (Figure 5-6).
At the other sampling locations upstream and downstream of the former CFC facility, average wet-weight
PCB concentrations were generally similar, ranging from 0.465 mg/kg (Chase Lake Road) to 0.585 mg/kg
(ISM-M1-27) (Figure 5-6). Average wet-weight total PCB concentrations in panfish tissue showed a
gradual increase from sampling locations 1SM-29 (0.175 mg/kg) through 1SM-M1-27 (0.322 mg/kg),
before remaining fairly stable through the Bowen Road (0.507 mg/kg), West Marr Road (0.585 mg/kg),
and Chase Lake Road (0.492 mg/kg) sampling locations.
Maximum concentrations of wet-weight total PCB measured in white sucker and panfish skin-on fillet
samples were below the fish consumption screening value for the "Do Not Eat" meal category (2.7 mg/kg;
Michigan Department of Community Health, 2016). The data comparison results indicate the advisories
arc currently protective. If confirmed through future sampling by the State, the declines in fish tissue
concentrations may at some point allow the advisories to be adjusted to less restrictive consumption
advisories. Nevertheless, it is recommended that fish containing PCB levels exceeding 0.11 mg/kg be
consumed no more than once a month (Michigan Department of Community Health, 2016). The Eat Safe
Fish Guide (Michigan Department of Health and Human Services, 2023) advises against the consumption
of any fish from the Site.
Lipid-normalized PCB concentrations in white sucker increased from a mean of 80.3 mg/kg-lipid at
sampling location ISM-29 to 137 mg/kg-lipid at ISM-M1-27 and to 208 mg/kg-lipid at Bowen Road,
followed by a decrease to 109 mg/kg-lipid at West Marr Road and 95 mg/kg-lipid at Chase Lake Road
(Figure 5-7). Lipid-normalized mean PCB levels in panfish tissue increased from upstream to downstream
with the highest results at Chase Lake Road (265 mg/kg-lipid).
Comparisons of the historical PCB dataset to the current PCB dataset are affected by the difference in the
PCB analysis methods; historical data were primarily analyzed for PCB Aroclors (i.e., commercial mixtures
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of PCB compounds) and the current fish data were analyzed for individual PCB congeners. While the PCB
Aroclor method may not provide the same level of sensitivity due to typically higher detection limits in
comparison to PCB congener methods, the presence of consistently detected concentration results provide
valuable information to support the evaluation of temporal patterns.
While the difference in the PCB analysis methods preclude a more rigorous statistical comparison, the 2021
PCB congener concentrations results were lower than those observed historically (pre-2017) for similar
species and sampling locations (CTI, 2015).
5.3 PCB Composition Analysis
Multivariate analysis (Le et al. 2008) using PCA and HCA was completed to evaluate the variation in
composition of PCB homologue groups in the fish tissue samples (Figure 5-8). Similar to the water column
data analysis presented in Section 4.5, this was done to provide insight as to whether the makeup of PCBs
reflected in fish varies across the site. Prior to the PCA. data were converted to percent of total PCB and
standardized to zero mean and unit standard deviation.
Similar composition of PCB homologue groups is observed in white sucker and panfish samples from five
sample locations at the Site, with slightly different distribution of PCB homologue groups in panfish
samples at an upstream sampling location ISM-29 than other sample locations. Tetrachlorobiphenyl and
pentachlorobiphenyl congeners consistently exhibit the highest concentrations among homologue groups
detected in white sucker samples collected at all five sample locations and in panfish samples collected at
four sample locations, excluding ISM-29. Panfish samples collected at sampling location ISM-29 exhibited
higher concentrations of pentachlorobiphenyl and hexachlorobiphenyl congeners. The transition of PCB
composition between the sampling location ISM-29 and downstream locations is further investigated by
PCA analysis of homolog percentages in fish samples from these locations.
The scree plot was used to determine the number of PCs to keep in the PCA. The elbow of the curve where
the eigen values level off was used to determine the PCs retained as significant (Figure 5-8).
Agglomerative HCA was then performed on the PCs of the PCA using the Ward Method which results in
"de-noising" to separate signal and noise in the dataset. The HCA was used to group results into subsets
(or clusters) that are more similar to each other than to those in other groups or clusters. The number of
clusters was determined by inspection of dendrogram illustrating which clusters have been joined at each
stage of the analysis and the distance between clusters at the time of joining. The optimum number of
clusters may be the number present just before that large jump in distance. Based on the significant gap
observed between the three branches on the cluster dendrogram, with a height exceeding 10, the data points
were assigned to three distinct clusters as described below:
• Cluster 1 consists of white sucker and panfish fish tissue samples primarily collected at four
sampling locations downstream of M-59 (ISM-M1-27, Bowen Road, West Marr Road, and Chase
Lake Road). This group is characterized by less chlorinated PCB congeners relative to samples
grouped in other clusters:
o Higher proportions of dichlorobiphenyl, trichlorobiphenyl, monochlorobiphenyl, and
tetrachlorobiphenyl congeners (sorted from the strongest); and
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o Lower proportions of pentachlorobiphenyl, hexachlorobiphenyl, nonachlorobiphenyl,
heptachlorobiphenyl, octachlorobiphenyl, and decachlorobiphenyl congeners (sorted from the
weakest).
• Cluster 2 consists of samples collected at sampling location ISM-29 (four white sucker and two
panfish) and at downstream locations ISM-M1-27 (two white sucker and three panfish), Chase
Lake Road (five panfish), and West Marr Road (one panfish) and is characterized by:
o Higher proportions of pentachlorobiphenyl congeners; and
o Lower proportions of dichlorobiphenyl, monochlorobiphenv 1. and trichlorobipheny 1 congeners
(sorted from the weakest).
• Cluster 3 consists of one white sucker and four panfish samples collected at sampling location ISM-
29 and is characterized by:
o Higher proportions of hexachlorobiphenyl. heptachlorobiphenyl, octachlorobiphenyl,
nonachlorobiphenyl, and decachlorobiphenyl congeners (sorted from the strongest); and
o Lower proportions of tetrachlorobiphenyl, trichlorobiphcnyl. dichlorobiphenyl, and
monochlorobiphenvl congeners (sorted from the weakest).
A PCA biplot was generated with PC 1 and PC2 as axes and data points grouped into the above three clusters
(Figure 5-8). The first two components of PCA indicate 89.9% of the variance (PCI = 71.4%; PC2 =
18.5%). The first PC. w hich describes most of the variance, separates samples with higher proportions of
more chlorinated PCB congeners (hexachlorobiphenyl. heptachlorobiphenyl, octachlorobiphenyl,
nonachlorobiphenyl. and decachlorobiphenyl) from less chlorinated PCB congeners (tetrachlorobiphenyl,
trichlorobiphcnyl. dichlorobiphenyl. and monochlorobiphenvl). Samples collected at ISM-29 primarily
plot positively along PC 1. while downstream locations plot negatively. The resemblance in percentages of
PCB homologue groups in Cluster 1 indicates that the PCBs in these locations may originate from a
common and consistent source. The deviation in the homologue groups for Clusters 2 and 3 indicates that
the source of PCBs that fish caught upstream of M-59 at ISM-29 are exposed to, may differ from the source
of PCBs that fish arc exposed to in the sampling locations downstream of M-59. M-59 is the upstream
boundary of the Site (see Section 1).
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6.0 SEDIMENT DATA EVALUATION
As summarized in Section 2.3, composite sediment samples were collected in 2021 from the 0- to 2-inch
surface and 2- to 6-inch subsurface intervals at 239 transects located between M-59 and Steinacker Road
and at four transects located in background areas upstream of M-59 (Figures 2-3a through 2-3f). The
primary intent of the sediment sampling was to evaluate changes in surface sediment PCB concentrations
in comparison to historical sampling results and to establish a baseline in anticipation of future sampling
events. Samples were additionally analyzed for TOC to evaluate PCB concentrations on a carbon basis, as
PCBs display preferential partitioning into organic matter. Because PCBs arc primarily associated with
organic matter in sediments, gradients in concentrations may be more readily observed when data are TOC-
adjusted than when examined solely on a dry-weight basis. TOC-adjustment of sediment PCB
concentrations is a technique that has been commonly applied for various purposes (e.g., USEPA 2001a;
Ohio Environmental Protection Agency, 2010: Washington State Department of Ecology, 1992,1993). The
bioavailability and mobility of PCBs in sediment arc closely linked to porewatcr concentrations, which can
be effectively related to TOC-adjusted concentrations through organic carbon-water partitioning
coefficients. These correlations enhance the capacity of TOC-adjusted PCB concentrations to provide
valuable insights into the sources and distribution of PCBs and support future MN R evaluations. Analytical
results for sediment samples are presented in Table 6-1. and a statistical summary of sediment sample
results is presented in Table 6-2.
Total PCBs concentrations for surface and subsurface sediment samples were used to estimate the SWACs
to support the spatial evaluation of PCB concentration in sediment at the Site, excluding the upstream
sample locations." SWACs were also used to reduce effects of bias in averaging datasets with different
spatial densities. For the purposes of this Report, the SWAC was calculated for each of the five sections of
the river identified in Section 3.2.2."
The SWAC in each river section was calculated using Equation 10 below:
Equation 10:
^ _ T,t= l Q x
LSWAC — F/v ~A
Lt=iAt
where:
Cswac = River section SWAC:
Ct = Transect-specific concentration;
5 One out of four upstream samples indicated detected PCB results and therefore, SWAC was not estimated for the
upstream area due to lack of sufficient detected results to estimate the mean concentration.
6 Although the SWAC discussion in Section 6 is based on the five sections of the river identified based on PCB
distributions and bridge crossings, as explained in Section 3.2.2, Figures 6-5 through 6-7 include a summary table
presenting SWAC by each river mile.
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At = Transect-specific Theissen polygon area;
N = Number of transects in river section; and
t = Select transect in river section.
The sum of the product of the transect-specific concentration (Ct) and Theissen polygon area (A() within
each river reach (Zt=1 Ct x At) was estimated by calculating the river section mean of the products and
multiplying by the number of transects in the river section.7 The individual transects in each river section
and the areas between the transects (transect-specific Theissen polygons) arc presented on Figures 6-1 a
through 6-lf.
The length-weighted sediment concentration per transect was estimated using the total Aroclor PCBs results
for the 0- to 2-inch and 2- to 6-inch sediment samples collected at the given transect, and then the length-
weighted SWAC per section was calculated using the above Equation 10. Analytical results for sediment
samples are presented on Figures 6-2a, 6-2b, 6-3a, 6-3b, 6-4a, and 6-4b by constituent and sampling
depth. Sediment SWACs are presented on Figures 6-5 through 6-7.
6.1 Statistical Evaluation
Surface and subsurface sediment samples were collected from 0 to 2 inches below ground surface and from
2 to 6 inches below ground surface, respectively. In background areas upstream of the former CFC facility,
total PCBs were detected in 12.5% (one of eight) of sediment samples, w ith a single detected result of
0.206 mg/kg (Table 6-2). In contrast, total PCBs were detected in 99.0% (473 of 478) of all other sediment
samples located between M-59 and Steinacker Road, with concentrations ranging from non-detect to a
maximum of 22 mg/kg. The frequency of PCB detections in surface and subsurface sediment samples was
similar; PCBs were detected in surface samples (0 to 2 inches) and subsurface samples (2 to 6 inches) at a
frequency of 99.2% (237 of 239) and 98.7% (236 of 239). respectively.
Surface sediment sample concentrations ranged from non-detect to 3.13 mg/kg at Transect T-201 between
Bowen Road and West Marr Road (Figures 6-lb and 6-2a). The mean PCB concentration in all surface
sediment samples was 0.464 mg/kg. with a standard deviation of 0.355 mg/kg and median of 0.388 mg/kg.
Subsurface sample concentrations ranged from non-detect to 22 mg/kg at Transect T233 between M-59 and
Bowen Road (Figures 6-1 a and 6-2b). The mean PCB concentration for all subsurface sediment samples
was 0.682 mg/kg. with a standard deviation of 1.49 mg/kg and median of 0.479 mg/kg.
TOC concentrations in surface sediment samples, excluding background, ranged from 1,240 mg/kg to
73.700 mg/kg at Transect T-033 between West Marr Road and Chase Lake Road (Figure 6-4a). Mean
TOC concentrations in site-wide surface sediment samples were 16,200 mg/kg, with a standard deviation
of 14.300 mg/kg and median of 10,900 mg/kg. TOC concentrations in Site-wide subsurface sediment
samples ranged from 798 mg/kg to 65,100 mg/kg at Transect T-038 between West Marr Road and Chase
7 Arithmetic mean estimated for river section datasets with no non-detect results. The Kaplan-Meier mean estimated
for river section datasets with non-detect results.
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Lake Road (Figure 6-4b). The mean TOC concentration for all Site-wide subsurface samples was
16,800 mg/kg, with a standard deviation of 13,400 mg/kg and median of 12,700 mg/kg.
Sediment TOC-adjusted PCB levels were highest in the M-59 to Bowen Road section, with a maximum
concentration of 4,490 milligrams per kilogram of organic carbon (mg/kg-OC) detected in subsurface
samples. The minimum detected TOC-adjusted PCB concentration for all samples was 2.06 mg/kg-OC,
collected from subsurface sediment between Bowen Road and West Marr Road. Mean TOC-adjusted PCB
concentrations were 54.9 mg/kg-OC in surface samples and 84.4 mg/kg-OC in subsurface samples, with
corresponding standard deviations of 75.5 mg/kg-OC (surface) and 307 mg/kg-OC (subsurface). Median
PCB concentrations were 32.3 mg/kg-OC in surface sediment samples and 37.1 mg/kg-OC in subsurface
sediment samples.
6.2 Spatial Patterns in Total PCBs and TOC-Normalized Total PCBs
Total PCB concentrations in the 0- to 2-inch sediment surface interval showed a notable increase
downstream of the M-59 bridge (Figure 6-2a). Concentrations of total PCBs appear to increase moving
downstream of the M-59 bridge, peaking at Transect T-201 (3.13 mg/kg) downstream of the Bowen Road
bridge, before declining to fairly steady levels toward the West Marr Road bridge (Figure 6-2a). Measured
concentrations of total PCBs at transect locations in the section between the M-59 and Bowen Road bridges
and between the Bowen Road and West Marr Road bridge were not statistically significantly different.8
Concentrations of total PCBs increase moving farther downstream of the West Marr Road bridge to Chase
Lake Road. Between Chase Lake Road and Steinacker Road, the maximum total PCB concentration in
surface sediment (i.e.. 1.27 mg/kg at T-022) was lower than the maximum total PCB concentration
measured between West Marr Road bridge to Chase Lake Road (i.e., 3.07 mg/kg at T-102); however, the
distribution of total PCB concentrations were not statistically significantly different (Figure 6-2a).
Measured total PCBs concentrations at transects between the West Marr Road bridge to Chase Lake Road
and Chase Lake Road and Steinacker Road, respectively, were statistically significantly different than the
population of results measured in the two sections downstream of the M-59 bridge (Figure 6-2a).
Total PCB concentrations in the 2- to 6-inch subsurface sediment interval generally follow the same spatial
pattern (Figure 6-2b) shown in surface samples, though PCB concentrations were generally higher in
s Hypothesis testing was used to explore similarities or differences between dataset distributions in sediment PCB,
TOC. and TOC-adjuslcd concentrations. Data distributions without non-detect results were tested using non-
parametric tests of stochastic dominance (i.e., Wilcoxon-Mann-Whitney test). Tests, such as the Wilcoxon-Mann-
Whitney test, indicate that at least one sample population stochastically dominates (i.e., greater than) another, or when
applied as a two-sided test, assesses whether the population distributions being tested are equal or not (Kruskal and
Wallis. 1952: Mann and Whitney, 1947; Conover, 1999; Sprent and Smeeton, 2000). If datasets contained non-
detects, data distributions were tested using methods for censored data (e.g., generalized Wilcoxon test; Helsel, 2012).
The generalized Wilcoxon test, as formulated by Peto and Peto, can be used to evaluate differences between the
survival distributions of two or more groups of independent censored observations (Peto and Peto, 1972). For data
comparisons with more than two individual populations, the Benjamini-Hochberg adjustment was used to minimize
the false discovery rate (Benjamini and Hochberg, 1995).
6-3
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
subsurface samples. Consistent with the surface sediment, total PCB concentrations in the sections between
the M-59 bridge and Bowen Road bridge and between the Bowen Road and West Marr Road bridge were
not statistically significantly different (Figure 6-2b). Likewise, the distributions of total PCB
concentrations were not statistically significantly different between the West Marr Road bridge to Chase
Lake Road and Chase Lake Road to Steinacker Road (Figure 6-2b). Total PCB concentrations between
Bowen Road and the West Marr Road bridge were statistically significantly different than the two
downstream sections, with the distribution of concentrations within this section generally lower
(Figure 6-2b).
The spatial and temporal distribution of PCBs in sediments can be affected by interactions between PCBs
and grain size and organic carbon. PCBs, like other hydrophobic organic compounds, have a high affinity
to organic matter and fine-grained particulates (e.g., silt and clay). Therefore, sediment PCB results were
normalized to organic carbon to help to reduce variability and allow for a more meaningful assessment of
spatial and temporal patterns in PCB concentrations. Figures 6-3a and 6-3b depict the TOC-adjusted PCB
concentrations by transect in the surface and subsurface intervals, respectively. When PCB concentrations
were normalized to TOC, a clear declining trend in TOC-adjusted PCB concentrations was observed in
both the 0-to 2-inch and 2-to 6-inch intervals (Figures 6-3a and 6-3b). Statistically significant differences
can be observed between each of the sections, with notably lower TOC-adjusted PCB concentrations
decreasing with increasing distance downstream of the former CFC facility (Figures 6-3a and 6-3b).
The spatial pattern in the TOC-adjusted PCB results can be attributed to the distribution of organic carbon
in sediments (Figures 6-4a and 6-4b). An example of this is observed downstream of the West Marr Road
Bridge at RS 24+500. where an increase in both organic carbon content and the total PCB concentration in
the surface sediment was observed (Figure 6-4a and Figure 6-2a, respectively). This change aligns with
the transition from higher gradient to lower gradient (Figure 4 in 2020 FSP [CTI and Arcadis, 2020]) which
would likely result in accumulation of finer grained sediment with higher organic content. As was observed
in the TOC-adjusted PCB concentrations, statistically significant differences are observed between each of
the sections, with concentrations of organic carbon in sediments showing an increasing trend moving
downstream through the Site (Figures 6-4a and 6-4b).
The pattern in total PCB. TOC-adjusted PCB, and TOC are exemplified by SWACs in both the 0- to 2-inch
and length-weighted 0- to 6-inch sampling intervals (Figures 6-5, 6-6, and 6-7, respectively). The surface
and subsurface sampling intervals were length-weighted to provide a singular representative result for
comparison to the historical 0- to 6-inch subsurface sampling interval. Consistent with the distribution of
total PCB results, the total PCB SWACs in surface sediments were similar between the M-59 bridge and
Bowen Road bridge (0.367 mg/kg) and between the Bowen Road bridge and West Marr Road bridge
(0.372 mg/kg) (Figure 6-5). Likewise, total PCB SWACs were similar between West Marr Road bridge
and Chase Lake Road (0.551 mg/kg) and between Chase Lake Road and Steinacker Road (0.537 mg/kg)
(Figure 6-5). In the length-weighted 0- to 6-inch interval, the total PCB SWAC is notably higher between
the M-59 bridge and Bowen Road bridge (1.05 mg/kg), which can be attributed to the maximum total PCB
concentration measured in the 2- to 6-inch subsurface interval at the T-233 transect location (22 mg/kg).
Consistent with the spatial pattern in TOC-adjusted PCB and TOC concentrations, TOC-adjusted PCB
6-4
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
SWACs decrease moving downstream from the former CFC facility, while TOC SWACs increase moving
downstream from the former CFC facility (Figures 6-6 and 6-7).
The total PCB SWAC for the historical 0- to 6-inch samples collected using the incremental sampling
methodology (ISM) during the 2013 Conceptual Site Model Sample Event (CTI, 2015) ranged from 0.490
to 3.96mg/kg (CTI, 2015). Additionally, the total PCB SWAC for composite sediment samples (0 to
6 inches) collected from River Mile 1 during this same event was 1.02 mg/kg (CTI. 2015). The length-
weighted comparison of baseline sediment samples to the 2013 samples indicated a decrease in total PCB
SWACs for River Miles 2 through 8 (Figure 6-5), whereas the total PCB SWAC in River Mile 1 for the
2013 composite samples (1.02 mg/kg; CTI, 2015) was similar to the total PCB SWAC for baseline sediment
samples (1.05 mg/kg).
6.2.1 Sediment Triplicate Sample Results
Triplicate samples were collected at 13 sampling locations to assess spatial variability within the transects.
For each of the selected locations, two additional samples were collected from separate transects
approximately 1 meter from the original sample location. Total PCB concentrations for triplicate samples
are presented in Table 6-3 and on Figure 6-8. The triplicate sampling results did not demonstrate a clear
relationship between triplicate variability and spatial distribution: TOC variability in surface sediment
generally increases as distance from the parent transect increases (Table 6-3). The RPDs observed in the
parent and associated triplicate samples primarily reflect heterogeneity in sediment distribution. A higher
RPD was observed at Triplicate #2. when compared to Triplicate#!, at 10 of 13 transect locations.
However, there is no clear relationship noted among subsurface TOC or surface and subsurface PCB, with
approximately half of the sediment locations showing increased variability with increased distance from
the parent transect sample result. Relative variability amongst total PCB results was assessed using a
coefficient of variation in the 0- to 2-inch surface and 2- to 6-inch subsurface sample intervals at each
triplicate sample location. The highest coefficients of variation for both the 0- to 2-inch and 2- to 6-inch
intervals (95.6 and 71.8. respectively) occurred at T-221. located just downstream of the former CFC
facility. Coefficients of variation fluctuated widely throughout the sediment, ranging from 1.69 to 95.6
with a median of 18.2 in the 0- to 2-inch surface interval, and ranging from 2.75 to 71.8 with a median of
17.65 in the 2- to 6-inch subsurface interval.
As depicted on Figure 6-8. heterogeneity on the scale of the triplicate samples is significantly less
pronounced than the differences in concentrations observed longitudinally in parent samples collected along
the river. Thus, triplicate samples are unlikely to have significant impacts on the SWAC estimates and
were not included in SWAC calculations.
6-5
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
7.0 NEXT STEPS
The baseline sampling data presented in this Report establish a useful baseline measurement of PCB
concentrations at the Site in surface water, fish, and sediment. This baseline dataset supplements existing
data in biotic and abiotic matrices and will be used to develop the LTMP for the Site. The LTMP will
outline anticipated future sampling and monitoring efforts needed to collect data that is comparable to the
baseline dataset for use in evaluating long-term time trends in PCB exposure concentrations in Site media.
The baseline sampling data will also be used to update the conceptual site model, which will be summarized
in the MNR Report currently in preparation. Additionally, an assessment of various lines of evidence for
recovery based on comparison of the historical and baseline sampling will be presented, within the limits
and uncertainties of the data. Conclusions from the evaluation of the observed changes over time in PCB
exposure concentrations in Site media will be described in the MNR Report.
7-1
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
8.0 REFERENCES
Arcadis. 2021.2020. Baseline Surface Water Sampling Summary, Shiawassee River Superfund Site. April.
Benjamini, Y. and Y. Hochberg. 1995. Controlling the False Discovery Rate: A Practical and Powerful
Approach to Multiple Testing. Journal of the Royal Statistical Society. Scries B (Methodological)
Vol. 57, No. 1 (1995), pp. 289-300.
Burgess, R.M. 2012. Guidelines for Using Passive Samplers to Monitor Organic Contaminants at Superfund
Sediment Sites. USEPA, Washington, DC, EPA/600/R-11/115. December.
Conover, W.J. 1999. Practical Nonparametric Statistical. 3rd Edition. John Wiley & Sons Inc.. New York.
428-433.
CTI. 2015. Draft Long-Term Monitoring Plan. Shiawassee River Superfund Site, Howell, Michigan.
September.
CTI and Arcadis. 2020. 2020 LTMP Baseline Sampling Event Field Sampling Plan, Shiawassee River
Superfund Site, Howell, Michigan. October 1.
Exponent. 2003. Fish Contaminant Monitoring Program: Review and Recommendations. Prepared for
Michigan Department of Environmental Quality. January.
Helsel, D.R. 2012. Statistics for censored environmental data using Minitab and R. 2nd edition. John Wiley
and Sons, New York.
Gobas, F.A., J.B. Wilcockson. R.W. Russell, and G.D. Haffner. 1999. Mechanism of biomagnification in
fish under laboratory and field conditions. Environ. Sci. Technol, 33(1), 133-141.
Great Lakes Commission. 2003. Michigan Fish Contaminant Trend Monitoring Strategy: Peer Review
Workshop. April 29-30. 2003. Best Western Gateway International Hotel, Romulus, Michigan.
Workshop Proceedings. Prepared by the Great Lakes Commission. Funded by the Michigan
Department of Environmental Quality. Available online at: https://www.michigan.gov/egle/-
/media/Projcct/Wcbsites/cglc/Documents/Programs/WRD/SWAS/fcmp-workshop-
summary.pdf?rc\=98c 14e4be7224310b66cf565b22bl5dc&hash=E90ClECC618F8ABB416D8E
8C2BC7399C. July.
Kruskal, W.H. and W.A. Wallis. 1952. Use of Ranks in One-Criterion Variance Analysis. Journal of the
American Statistical Association, Vol. 47, No. 260. (Dec. 1952), pp. 583-621.
Le. S.. J. Josse, and F. Husson. 2008. FactoMineR: A Package for Multivariate Analysis. Journal of
Statistical Software, Vol. 25, No. l,pp. 1-18. doi:10.18637/jss.v025.i01.
Lohmann. R. 2012. Critical review of low-density polyethylene's partitioning and diffusion coefficients for
trace organic contaminants and implications for its use as a passive sampler. Environ. Sci. Technol.:
46:606-618.
-------
Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
Mann, H.B. and D.R. Whitney. 1947. On a Test ofWhether One of Two Random Variables is Stochastically
Larger than the Other. The Annals of Mathematical Statistics, Volume 18, Number 1 (1947), pp.
50-60.
Michigan Department of Community Health. 2016. Michigan Fish Consumption Advisory Program
Guidance Document. Version 4.0. September 14.
Michigan Department of Health and Human Services. 2023. Eat Safe Fish Guide. Available online at:
https://www.michigan.gov/mdhhs/-/media/Project/Websites/mdhhs/DEH/Eat-Safe-
Fish/Documents/SE_EAT_SAFE_FISH_GUIDE_-
_SOUTHEAST_MI_WEB.pdf?rev=8f5e82191alc42499c974fa2e720154f&hash=84B3C676836
7C72B2EE31CCB1CC26D8C
MDEQ. 1997. Great Lakes and Environmental Assessment Section Procedure #51 Survey Protocols for
Wadable Rivers. Chapter 25A in Schneider. James C. (ed.) 2000. Manual of fisheries survey
methods II: with periodic updates. Surface Water Quality Division. MDNR, Fisheries Special
Report 25, Ann Arbor.
MDEQ. 2014. Fish Contaminant Monitoring Program - Fish Collection Procedures. Surface Water
Quality Program. WRD-SWAS-004. May 22.
Ohio Environmental Protection Agency. 2010. Guidance on Evaluating Sediment Contaminant Results.
Ohio Environmental Protection Agency. Division of Surface Water. Standards and Technical
Support Section. January.
Peto, R. and J. Peto. 1972. Asymptotically efficient rank invariant test procedures. Journal of the Royal
Statistical Society. Series A. 135. 185-206. doi: 10.2307/2344317.
Santini, A.D.. T. King. K. Krawczyk. and J.W. Kern. 2015. Effectiveness of a sediment time critical
removal action—PCB reduction in fish tissue, surface water, and sediment via wet excavation.
Integrated Environmental Assessment and Management. 11(1): 161-170.
Sivev. J. D.. and C. M. Lee. Polvchlorinated biphenvl contamination trends in Lake Hartwell, South
Carolina (USA): Sediment recovery profiles spanning two decades. Chemosphere 66.10 (2007):
1821-1828.
Smedes, P., R.W. Geerstma. T. van derZande. and K. Booij. 2009. Polymer-water partition coefficients of
hydrophobic compounds for passive sampling: Application of cosolvent models for validation.
Environ. Sci. Technol. 43:7047-7054.
Sprent. P. and N.C. Smeeton. 2000. Applied nonparametric statistical methods. Boca Raton: Chapman &
Hall/CRC.
USEPA. 1999. Contract Laboratory Program National Functional Guidelines for Organic Data Review.
OSWER 9240.1-05A-P. PB99-963506. EPA540/R-99/008. Office of Emergency and Remedial
Response, United States Environmental Protection Agency. October.
USEPA. 2001a. Methods for Collection, Storage and Manipulation of Sediments for Chemical and
Toxicological Analyses: Technical Manual. EPA-823-B-01-002. October.
8-2
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Shiawassee River Superfund Site
2020-2021 Baseline Sampling Data Report
USEPA. 2001b. Final Record of Decision. South Branch of the Shiawassee River, Howell, Michigan.
September 28.
USEPA. 2017. National Functional Guidelines for Organic Superfund Methods Data Review.
OLEM 9355.0-136. EPA-540-R-2017-002. Office of Superfund Remediation and Technology
Innovation (OSRTI), United States Environmental Protection Agency. January.
USEPA. 2019. Third Five-Year Review Report for Shiawassee River Superfund Site. Livingston County,
Michigan. August.
USEPA. 2021. Email from M. Kerr (USEPA)to B. Finley (CTI) re: Shiawassee Blank Collection Procedure
Update. August 11, 4:16 p.m.
Warzyn. 1992. Remedial Investigation Report, South Branch Shiawassee River, Howell. Michigan.
January.
Washington State Department of Ecology. 1992. Technical Information Memorandum: Organic Carbon
Normalization of Sediment Data. Publication No. 05-09-050. Prepared by Teresa C. Michelsen,
Ph.D., Washington State Department of Ecology Sediment Management Unit. December.
Washington State Department of Ecology. 1993. Clarification: Recommended Methods for Measuring
TOC in Sediments. Addition to Technical Information Memorandum: Organic Carbon
Normalization of Sediment Data. Publication No. 05-09-050. Prepared by Kathy Bragdon-Cook,
Washington State Department of Ecology Sediment Management Unit. June.
8-3
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TABLES
-------
Table 2-1
Summary of Precipitation Data
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Date
Daily Precipitation (inches)
9/1/2020
1.51
9/2/2020
0.01
9/3/2020
0
9/4/2020
0
9/5/2020
0
9/6/2020
0
9/7/2020
0.1
9/8/2020
1.93
9/9/2020
0.17
9/10/2020
0
9/11/2020
0
9/12/2020
0
9/13/2020
0.37
9/14/2020
0
9/15/2020
0
9/16/2020
0.01
9/17/2020
0
9/18/2020
0
9/19/2020
0
9/20/2020
0
9/21/2020
0
9/22/2020
0
9/23/2020
0
9/24/2020
0
9/25/2020
0
9/26/2020
0
9/27/2020
0
9/28/2020
0.39
9/29/2020
0.03
9/30/2020
0.58
10/1/2020
0.4
10/2/2020
0
10/3/2020
0
10/4/2020
0.08
10/5/2020
0
10/6/2020
0
10/7/2020
0
10/8/2020
0
10/9/2020
0
10/10/2020
0
10/11/2020
0
10/12/2020
0.35
10/13/2020
0
10/14/2020
0
10/15/2020
0
10/16/2020
0
10/17/2020
0
10/18/2020
0.28
10/19/2020
0.11
10/20/2020
0.17
10/21/2020
0.23
10/22/2020
2.11
10/23/2020
0.3
10/24/2020
0
10/25/2020
0
10/26/2020
0
10/27/2020
0.07
10/28/2020
0
10/29/2020
0
10/30/2020
0
10/31/2020
0
11/1/2020
0.14
11/2/2020
0
11/3/2020
0
11/4/2020
0
11/5/2020
0
11/6/2020
0
11/7/2020
0
11/8/2020
0
Notes:
1. Precipitation data recorded at Howell Livingston County Airport,
(Station ID: WBAN:04887).
2. Round 1 and 2 sampling dates are highlighted.
Reference:
National Climatic Data Center (NCDC). 2021: Local Climatological Data for Howell
Livingston County Airport, MI, U.S. (National Oceanic and Atmospheric
Administration [NOAA] Station ID: WBAN04887). Retrieved March 5, 2021, from:
https://wwvv.ncdc.noaa.gOv/cdo-web/datasets/LCD/stationsAVBAN:04887/detail
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 2-2
Surface Water Sample Location Summary
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample
Location1
River
Easting2
Northing2
Round 1 Sampling Event in September 2020
(SP3™ Sampler Deployment)
Round 2 Sampling Event in November 2020
(SP3™ Sampler Retrieval)
Stationing
(feet)
(feet)
Water Depth
(feet)
Flow Velocity at
Mid-Depth
(feet/second)
Water Depth
(feet)
Flow Velocity at
Mid-Depth
(feet/second)
UP-12
-4+45
13231483.74
408792.40
30
2.3
0.35
2.2
0.40
UP-11
-2+90
13231530.50
408935.17
25
2.9
0.25
3.0
0.27
BR-10
6+80
13231473.91
409666.93
22
2.5
0.58
2.5
0.67
BR-09
12+50
13231335.56
410152.61
30
1.7
0.74
1.8
0.78
BR-08
18+00
13231193.58
410647.17
31
1.1
0.63
1.2
1.1
BR-07
25+90
13231185.56
411373.34
27
1.2
1.1
1.3
0.74
BR-06
42+00
13231606.10
412659.02
19
1.2
0.81
2.6
0.83
BR-05
58+80
13231089.95
413754.61
19
1.9
0.77
1.9
1.2
BR-04
66+00
13230809.21
414317.71
20
1.9
0.72
2.4
2.00
MR-03
198+00
13228533.00
425778.56
29
1.6
0.53
1.8
0.49
CL-02
367+00
13226762.40
440698.90
28
1.6
0.60
2.2
0.39
SR-01
423+40
13226286.83
445662.27
29
2.5
0.61
2.4
0.78
Footnotes:
1. Locations are listed from the upstream to downstream direction.
2. Coordinates are provided in Michigan State Plane Coordinate South Zone, North American Datum of 1983, U.S. Survey Feet.
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/1
-------
Table 2-3
Summary of SP3™ Sampler Deployment and Retrieval
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID1
SP3™ Deployment
SP3™ Retrieval
Deployment
Duration
(days)
Date
Time
Date
Time
UP-SP3-12
9/24/2020
10:25 AM
11/8/2020
1:40 PM
45
UP-SP3-11
9/24/2020
11:00 AM
11/8/2020
1:19 PM
45
BR-SP3-10
9/24/2020
1:25 PM
11/8/2020
11:21 AM
45
BR-SP3-09
9/24/2020
1:35 PM
11/8/2020
10:47 AM
45
BR-SP3-08
9/24/2020
1:55 PM
11/8/2020
9:56 AM
45
BR-SP3-07
9/24/2020
2:05 PM
11/8/2020
9:18 AM
45
BR-SP3-06
9/24/2020
2:30 PM
11/7/2020
4:54 PM
44
BR-SP3-05
9/24/2020
3:00 PM
11/7/2020
4:04 PM
44
BR-SP3-04
9/24/2020
3:15 PM
11/7/2020
2:56 PM
44
MR-SP3-03
9/24/2020
3:30 PM
11/7/2020
1:55 PM
44
CL-SP3-02
9/24/2020
4:00 PM
11/7/2020
12:48 PM
44
SR-SP3-01
9/24/2020
4:10 PM
11/7/2020
11:09 AM
44
UP-SP3-FB-11-01
9/24/2020
10:45 AM
9/24/2020
10:50 AM
2
UP-SP3-FB-11-02
9/24/2020
10:45 AM
9/24/2020
10:50 AM
UP-SP3-FB-11-03
9/24/2020
10:45 AM
9/24/2020
10:50 AM
Footnotes:
1. Locations are listed from the upstream to downstream direction.
2. Three trip blanks were collected during SP3™ sampler deployment by exposing SP3™ sampler to air, light,
and other ambient field conditions for approximately five minutes.
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 4-1
Summary of Water Quality Parameter Measurements
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface
Water Sample ID1
River
Stationing
(feet)
Sample Date
Sam pie
Time
Temperature
(°C)
pH
(S.U.)
Specific
Conductivity
(mS/cm)
Turbidity
(NTU)
Dissolved
Oxygen
(mg/L)
QA/QC
Sam pie
Round 1 Sampling Event (SP3™ Sampler Deployment)
UP-SW-1213.8
-4+45
9/24/2020
10:05 AM
14.88
7.26
0.47
0
7.94
UP-SW-1117.4
-2+90
9/24/2020
9:04 AM
14.95
7.19
0.47
0
7.53
BR-SW-1015
6+80
9/23/2020
5:04 PM
17.48
8.21
0.45
0
10.3
BR-SW-0910.2
12+50
9/23/2020
4:16 PM
17.08
8.86
0.45
0
11.0
BR-SW-08 6.6
18+00
9/23/2020
2:33 PM
15.73
8.60
0.46
0
11.0
BR-SW-07 7.2
25+90
9/23/2020
1:20 PM
15.05
8.33
0.46
0
10.1
BR-SW-06 7.2
42+00
9/23/2020
9:15 AM
13.57
7.15
0.46
0
8.49
Field Duplicate
BR-SW-0511.4
58+80
9/22/2020
6:22 PM
15.67
8.04
0.45
0
9.97
BR-SW-0411.4
66+00
9/22/2020
4:55 PM
15.61
8.49
0.45
0.30
9.93
MR-SW-03 9.6
198+00
9/22/2020
3:21 PM
15.91
9.12
0.44
0
11.7
Field Duplicate
CL-SW-02 9.6
367+00
9/22/2020
11:44 AM
13.14
8.79
0.44
1.0
10.9
MS/MSD
SR-SW-0115
423+40
9/22/2020
10:31 AM
11.86
7.27
0.45
2.4
8.75
Round 2 Sampling Event (SP3™ Sampler Retrieval)
UP-SW-1213.2
-4+45
11/8/2020
1:48 PM
11.10
8.2
0.74
1.9
11.6
UP-SW-1118
-2+90
11/8/2020
1:06 PM
10.80
8.1
0.73
2.0
11.4
BR-SW-1015
6+80
11/8/2020
11:11 AM
9.50
8.02
0.72
2.1
10.2
BR-SW-0910.8
12+50
11/8/2020
10:29 AM
9.40
8.00
0.72
2.1
10.3
Field Duplicate
BR-SW-08 7.2
18+00
11/8/2020
9:44 AM
9.20
7.92
0.71
2.3
10.1
BR-SW-07 7.8
25+90
11/8/2020
9:05 AM
9.20
7.50
0.71
2.2
9.52
BR-SW-0615.6
42+00
11/7/2020
4:42 PM
12.00
8.18
0.75
2.1
11.4
BR-SW-0511.4
58+80
11/7/2020
3:53 PM
12.10
8.23
0.75
1.6
12.0
BR-SW-0414.4
66+00
11/7/2020
2:47 PM
12.00
8.20
0.75
1.6
12.0
MR-SW-0310.8
198+00
11/7/2020
1:42 PM
12.10
8.34
0.72
1.4
13.2
CL-SW-0213.2
367+00
11/7/2020
12:25 PM
11.50
8.22
0.71
3.3
13.4
Field Duplicate
SR-SW-0114.4
423+40
11/7/2020
10:36 AM
9.10
7.89
0.67
6.1
9.70
MS/MSD
Footnote:
1. Field parameter measurements were recorded for unfiltered sample by lowering the water quality meter directly in the river at the sample location.
2. In addition to field duplicate and MS/MSD samples, two equipment rinsate blanks were collected during both sampling events.
Acronyms and Abbreviations:
°C = degree Celsius NTU = Nephelometric Turbidity Units
mg/L = milligrams per liter QA/QC = quality assurance/quality control
mS/cm = milliSiemens per centimeter S.U. = standard unit
MS/MSD = matrix spike and matrix spike duplicate
CTI and Associates, Inc. Areadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/1
-------
Table 4-2
Calculated Cfree Results for SP3™ Samplers
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
SP3™ Sampler Location ID
CAS Number
Units
UP-SP3-12
UP-SP3-11
BR-SP3-10
BR-SP3-09
BR-SP3-08
BR-SP3-07
BR-SP3-06
BR-SP3-05
BR-SP3-04
MR-SP3-03
CL-SP3-02
SR-SP3-01
PCB-1
2051-60-7
ng/L
ND
ND
ND
1.60
1.70
2.30
3.20
3.00
3.20
3.00
2.50
2.70
PCB-2
2051-61-8
ng/L
ND
ND
ND
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-3
2051-62-9
ng/L
ND
ND
ND
0.150
0.140
0.170
0.230
0.240
0.240
0.170
0.180
0.210
PCB-4
13029-08-8
ng/L
ND
ND
ND
2.00
2.50
3.80
6.10
6.30
6.90
11.0
7.60
7.60
PCB-5
16605-91-7
ng/L
ND
ND
ND
ND
ND
ND JX
ND
ND
ND JX
ND JX
ND
ND JX
PCB-6
25569-80-6
ng/L
ND
ND
ND
0.220
NDX
0.430
0.470
0.540
0.540
0.670
0.690
0.760
PCB-7
33284-50-3
ng/L
ND
ND
ND
NDX
NDX
NDX
0.170
0.220
0.220
0.290
0.250
0.250
PCB-8
34883-43-7
ng/L
ND
ND
ND
0.760
0.760
1.30
1.90
2.70
2.70
3.10
2.70
2.70
PCB-9
34883-39-1
ng/L
ND
ND
ND
NDX
NDX
0.0650
NDX
0.0900
NDX
NDX
0.130
0.140
PCB-10
33146-45-1
ng/L
ND
ND
ND
0.100
NDX
0.180
0.280
0.350
0.330
0.540
0.350
0.350
PCB-11
2050-67-1
ng/L
ND
ND B
ND
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-12/13
12-13
ng/L
ND
ND
ND
0.0410
NDX
0.0970
0.150
0.180
0.180
0.220
0.190
0.180
PCB-15
2050-68-2
ng/L
ND
ND
ND
0.330
0.380
0.770
1.20
1.80
1.80
3.10
2.50
2.40
PCB-16
38444-78-9
ng/L
ND
ND
ND
0.0280
0.0170
0.0570
0.0740
0.0930
0.0870
0.150
0.160
0.160
PCB-17
37680-66-3
ng/L
ND JX
0.00370 J
ND JX
0.210
0.260
0.720
1.20
1.50
1.60
2.70
2.40
2.10
PCB-18/30
18-30
ng/L
ND B
ND B
ND B
0.160
0.110
0.310
0.400
0.390
0.400
0.790
0.930
0.980
PCB-19
38444-73-4
ng/L
ND
ND
ND
NDX
0.190
0.330
0.720
0.940
0.980
1.80
1.20
1.20
PCB-20/28
20-28
ng/L
0.00520 J
0.00800 J
0.00980 J
0.250
0.180
0.580
1.40
2.00
2.10
3.80
3.60
3.60
PCB-21/33
21-33
ng/L
ND JX
0.00200 J
ND JX
0.00930 J
ND JX
0.0280
NDX
0.0570
0.0510
0.100
0.0990
0.140
PCB-22
38444-85-8
ng/L
ND JX
ND JX
0.00150 J
0.0620
0.0380
0.120
0.230
0.270
0.280
0.490
0.480
0.490
PCB-23
55720-44-0
ng/L
ND
ND
ND
ND
ND
ND
0.00150 J
ND JX
ND JX
ND JX
ND JX
ND JX
PCB-24
55702-45-9
ng/L
ND
ND
ND
0.00490 J
ND JX
ND JX
ND JX
0.0150 J
0.0220
NDX
0.0280
NDX
PCB-25
55712-37-3
ng/L
0.000540 J
0.000800 J
ND JX
0.0830
0.0620
0.260
0.430
0.510
0.520
0.870
0.780
0.820
PCB-26/29
26-29
ng/L
ND JX
ND JX
ND JX
0.0780
0.0570
0.230
0.320
0.340
0.370
0.670
0.730
0.720
PCB-27
38444-76-7
ng/L
ND
ND
ND
0.0400
NDX
0.120
0.250
0.350
0.370
0.620
0.490
0.460
PCB-31
16606-02-3
ng/L
ND JX
0.00430 J
0.00490 J
0.200
0.170
0.640
0.910
1.00
1.10
2.00
2.10
2.20
PCB-32
38444-77-8
ng/L
ND B
ND B
ND B
0.150
0.150
0.350
0.720
1.10
1.10
1.40
1.10
1.10
PCB-34
37680-68-5
ng/L
ND
ND
ND
0.00300 J
0.00280 J
0.0110
0.0200
0.0240
0.0270
0.0510
0.0450
0.0430
PCB-35
37680-69-6
ng/L
ND
ND
ND
ND
0.000320 J
ND JX
0.00160 J
0.00270 J
0.00270 J
ND JX
0.00480 J
0.00420 J
PCB-37
38444-90-5
ng/L
ND JX
ND JX
ND JX
0.00500
0.00560
0.0140
0.0340
0.0560
0.0620
0.150
0.200
0.190
PCB-38
53555-66-1
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-39
38444-88-1
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
ND XB
ND B
ND B
ND B
ND B
ND B
PCB-40/41/71
40-41-71
ng/L
ND JX
0.00190 J
ND JX
0.0360
0.0290
0.0990
0.180
0.240
0.270
0.450
0.470
0.460
PCB-42
36559-22-5
ng/L
ND
0.00160 J
0.00170 J
0.0270
0.0190
0.0620
0.120
0.150
0.160
0.300
0.310
0.290
PCB-43/73
43-73
ng/L
ND
ND
ND
ND B
ND B
ND B
0.0280
0.0360
0.0420
ND B
0.0760
0.0550
PCB-44/47/65
44-57-65
ng/L
ND B
ND B
ND B
ND B
ND B
0.240
0.460
0.680
0.760
1.30
1.20
1.10
PCB-45/51
45-51
ng/L
ND
ND B
ND
ND B
ND B
0.0710
0.130
0.160
0.180
0.310
0.260
0.260
PCB-46
41464-47-5
ng/L
ND
ND
ND
0.00650
ND JX
0.0150
0.0260
0.0260
0.0310
0.0560
0.0490
0.0480
PCB-48
70362-47-9
ng/L
ND
ND JX
0.00100 J
0.00730
0.00560
0.0170
0.0420
0.0580
0.0660
0.110
0.120
0.110
PCB-49/69
49-69
ng/L
0.00320 J
0.00490 J
0.00540 J
0.0750
0.0590
0.190
0.340
0.460
0.490
0.920
1.00
1.00
PCB-50/53
50-53
ng/L
ND
ND B
ND
ND B
ND B
ND B
0.0960
0.110
0.120
0.250
0.240
0.230
PCB-52
35693-99-3
ng/L
0.00710
0.0110
ND B
0.0870
0.0690
0.220
0.390
0.490
0.540
1.00
1.20
1.10
PCB-54
15968-05-5
ng/L
ND
ND
ND
ND B
ND B
ND B
ND B
ND B
0.00500 J
0.00780 J
0.00590 J
0.00570 J
PCB-55
74338-24-2
ng/L
ND
ND
ND JX
ND JX
ND JX
0.00190 J
0.00620
0.00960
0.0110
0.0190
0.0240
0.0190
PCB-56
41464-43-1
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
0.0590
0.0910
0.100
0.180
0.220
0.190
PCB-57
70424-67-8
ng/L
ND
ND
ND
ND JX
0.000480 J
0.00120 J
0.00390
0.00610
0.00670
0.0130
0.0130
0.0130
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/4
-------
Table 4-2
Calculated Cfree Results for SP3™ Samplers
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
SP3™ Sampler Location ID
CAS Number
Units
UP-SP3-12
UP-SP3-11
BR-SP3-10
BR-SP3-09
BR-SP3-08
BR-SP3-07
BR-SP3-06
BR-SP3-05
BR-SP3-04
MR-SP3-03
CL-SP3-02
SR-SP3-01
PCB-58
41464-49-7
ng/L
ND
ND
ND
ND JX
ND
ND
0.00180 J
0.00210 J
0.00260
0.00490
NDX
NDX
PCB-59/62/75
59-62-75
ng/L
ND
0.000750 J
0.000640 J
0.00950 J
0.00760 J
0.0240
0.0550
0.0800
0.0910
0.150
0.160
0.150
PCB-60
33025-41-1
ng/L
ND JX
ND JX
ND JX
0.00670
0.00650
0.0140
0.0400
0.0710
0.0790
0.140
0.140
0.130
PCB-61/70/74/76
61-70-74-76
ng/L
ND JX
0.00650 J
0.0110
0.0530
0.0430
0.110
0.270
0.460
0.480
0.860
0.940
0.890
PCB-63
74472-34-7
ng/L
ND
ND
ND JX
0.00390
0.00320
0.00810
0.0200
0.0370
0.0390
0.0680
0.0710
0.0720
PCB-64
52663-58-8
ng/L
0.00180 J
0.00260 J
0.00340 J
0.0410
0.0320
0.0990
0.200
0.270
0.300
0.550
0.630
0.570
PCB-66
32598-10-0
ng/L
0.00250
0.00400
0.00660
0.0330
0.0280
0.0660
0.170
0.300
0.330
0.560
0.650
0.610
PCB-67
73575-53-8
ng/L
ND
ND
ND
0.00170 J
0.00140 J
0.00350
0.00920
0.0150
0.0170
0.0300
0.0290
0.0280
PCB-68
73575-52-7
ng/L
ND B
ND B
ND
ND B
ND B
NDXB
ND B
0.00860
0.00920
0.0160
0.0140
0.0150
PCB-72
41464-42-0
ng/L
ND
ND
ND
0.000830 J
0.000800 J
0.00320
0.00640
0.0100
0.0110
0.0200
0.0180
0.0200
PCB-77
32598-13-3
ng/L
ND
ND
0.000370 J
0.00120 J
ND JX
0.00260
0.00750
0.0140
0.0160
0.0310
0.0330
0.0300
PCB-79
41464-48-6
ng/L
ND
ND
ND
ND JX
ND
ND
0.000680 J
0.00120 J
0.00120 J
0.00270 J
0.00250 J
ND JX
PCB-80
33284-52-5
ng/L
ND B
NDXB
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
NDXB
NDXB
PCB-81
70362-50-4
ng/L
ND B
ND
ND
ND
ND B
ND
ND B
ND B
ND B
ND B
ND B
ND B
PCB-82
52663-62-4
ng/L
ND JX
ND JX
ND JX
0.00200
NDX
0.00390
0.00790
0.0130
0.0140
0.0310
0.0320
0.0310
PCB-84
52663-60-2
ng/L
ND JX
0.00390
NDX
0.00610
0.00520
0.0150
0.0250
0.0320
0.0350
0.0720
0.0800
0.0700
PCB-85/116/117
85-116-117
ng/L
0.00100 J
ND JX
0.00200 J
0.00360
0.00380
0.00770
0.0170
0.0310
0.0320
0.0660
0.0730
0.0700
PCB-83/99
83-99
ng/L
0.00500
0.00690
NDX
0.0130
0.0120
0.0210
0.0450
0.0900
0.0850
0.180
0.190
0.200
PCB-86/87/97/109/119/125
868797109119125
ng/L
0.00380 J
0.00620 J
0.00580 J
0.0100
0.0100
0.0200
0.0380
0.0650
0.0650
0.140
0.150
0.150
PCB-88/91
88-91
ng/L
ND JX
ND JX
ND JX
0.00530
0.00490
0.0130
0.0240
0.0400
0.0420
0.0770
0.0870
0.0820
PCB-89
73575-57-2
ng/L
ND B
ND
ND
ND B
ND B
ND B
0.00250
0.00380
0.00400
0.00770
0.00820
0.00700
PCB-90/101/113
90-101-113
ng/L
0.00940
0.0130
0.0140
0.0190
0.0180
0.0310
0.0560
0.0970
0.0920
0.190
0.210
0.200
PCB-92
52663-61-3
ng/L
0.00290
0.00490
0.00360
0.00470
0.00520
0.00890
0.0150
0.0220
0.0220
0.0510
0.0550
0.0550
PCB-93/100
93-100
ng/L
ND B
ND
ND B
ND B
ND B
ND B
ND B
0.00630
NDXB
0.0120
NDXB
NDX
PCB-94
73575-55-0
ng/L
ND
ND
ND
ND JX
ND JX
0.000660 J
0.00160 J
0.00270
0.00320
0.00530
0.00610
0.00570
PCB-95
38379-99-6
ng/L
0.00950
0.0130
0.0120
0.0190
0.0190
0.0400
0.0700
0.0920
0.100
0.200
0.230
0.200
PCB-96
73575-54-9
ng/L
ND
ND
ND
ND
ND
0.00140 J
NDX
NDX
NDX
0.00540
NDX
0.00470
PCB-98/102
98-102
ng/L
ND JX
ND
ND JX
0.00140 J
0.00130 J
0.00440
0.00850
0.0130
0.0140
0.0280
0.0280
0.0280
PCB-103
60145-21-3
ng/L
ND JX
ND
0.000300 J
0.000270 J
ND JX
0.000820 J
0.00170 J
0.00270
NDX
0.00470
0.00560
0.00540
PCB-105
32598-14-4
ng/L
0.000610 J
0.000950 J
0.00120
NDX
NDX
0.00460
0.00960
0.0210
0.0200
0.0490
0.0490
0.0530
PCB-106
70424-69-0
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-107
70424-68-9
ng/L
ND JX
ND JX
0.000550 J
0.000890
0.000760
0.00160
0.00290
0.00640
0.00600
0.0140
0.0140
0.0150
PCB-108/124
108-124
ng/L
ND JX
0.000230 J
ND JX
ND JX
0.000280 J
0.000450 J
0.00100 J
0.00200
0.00190
0.00440 J
0.00450
0.00480
PCB-110/115
110-115
ng/L
0.00830
0.0120
0.0120
0.0200
0.0180
0.0400
0.0700
0.110
0.120
0.240
0.270
0.260
PCB-111
39635-32-0
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-112
74472-36-9
ng/L
ND JX
ND JX
0.000180 J
0.000240 J
ND JX
ND JX
ND JX
0.00160
0.00150
0.00360
0.00330
0.00350
PCB-114
74472-37-0
ng/L
ND B
ND B
ND B
ND B
ND B
0.000440 J
0.00100
0.00240
0.00200
ND B
0.00490
0.00570
PCB-118
31508-00-6
ng/L
ND B
0.00380
0.00480
0.00780
0.00760
0.0130
0.0270
0.0530
0.0520
0.120
0.120
0.130
PCB-120
68194-12-7
ng/L
ND
ND
ND
ND
ND
ND
ND JX
ND JX
0.000330 J
ND JX
0.000760 J
ND
PCB-122
76842-07-4
ng/L
ND JX
ND JX
ND JX
ND JX
0.000120 J
ND JX
0.000550 J
NDX
0.00100
NDX
0.00280
0.00300
PCB-123
65510-44-3
ng/L
ND JX
0.000120 J
0.0000940 J
ND JX
0.000190 J
0.000320 J
0.000890 J
0.00160
NDX
0.00370
0.00350
0.00460
PCB-126
57465-28-8
ng/L
ND
ND
ND
ND
ND
ND JX
0.0000460 J
0.000120 J
0.000120 J
ND JX
ND JX
ND JX
PCB-127
39635-33-1
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-128/166
128-166
ng/L
0.000370 J
0.000640 J
0.000620 J
0.000500 J
0.000450 J
ND JX
ND JX
0.00120
0.00110
0.00370 J
0.00340
0.00420
PCB-129/138/160/163
129-138-160-163
ng/L
0.00340
0.00470
0.00560
0.00480
0.00480
0.00610
0.00690
0.00920
0.00820
0.0270
0.0250
0.0300
PCB-130
52663-66-8
ng/L
0.000240 J
0.000440 J
0.000380 J
0.000320 J
0.000340 J
0.000400 J
0.000420 J
0.000710
0.000710
NDX
0.00200
0.00270
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
2/4
-------
Table 4-2
Calculated Cfree Results for SP3™ Samplers
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
SP3™ Sampler Location ID
CAS Number
Units
UP-SP3-12
UP-SP3-11
BR-SP3-10
BR-SP3-09
BR-SP3-08
BR-SP3-07
BR-SP3-06
BR-SP3-05
BR-SP3-04
MR-SP3-03
CL-SP3-02
SR-SP3-01
PCB-131
61798-70-7
ng/L
ND
ND
0.0000980 J
ND JX
ND JX
ND JX
ND JX
0.000180 J
ND JX
ND JX
ND JX
ND JX
PCB-132
38380-05-1
ng/L
0.00150
0.00220
0.00220
0.00200
0.00210
0.00260
0.00320
0.00420
0.00410
0.0120
0.0120
0.0130
PCB-133
35694-04-3
ng/L
ND
ND JX
ND JX
0.000110 J
ND JX
ND JX
0.000120 J
0.000190 J
0.000160 J
0.000720 J
0.000570 J
0.000770 J
PCB-134/143
134-143
ng/L
ND JX
ND JX
0.000450 J
ND JX
0.000440 J
ND JX
0.000710 J
0.000990 J
0.000880 J
0.00230 J
0.00250 J
0.00300 J
PCB-135/151
135-151
ng/L
0.00200
0.00330
0.00310
0.00270
0.00290
0.00370
0.00400
0.00500
0.00440
0.0130
0.0120
0.0140
PCB-136
38411-22-2
ng/L
0.000580
0.00110
NDX
0.000620
0.000730
NDX
0.00120
0.00140
0.00140
0.00420
0.00390
0.00430
PCB-137
35694-06-5
ng/L
ND JX
ND JX
0.000260 J
0.000220 J
ND JX
0.000250 J
0.000320 J
0.000540
0.000450
0.00180 J
0.00150
NDX
PCB-139/140
139-140
ng/L
ND JX
0.000160 J
ND JX
0.000150 J
ND JX
ND JX
0.000180 J
0.000330 J
0.000310 J
ND JX
0.000750 J
0.000960 J
PCB-141
52712-04-6
ng/L
0.000590
NDX
0.00110
0.000850
0.000960
NDX
0.00120
0.00160
0.00150
0.00450
0.00390
0.00490
PCB-144
68194-14-9
ng/L
0.000170 J
ND JX
0.000250 J
0.000230 J
ND JX
ND JX
ND JX
ND JX
ND JX
ND JX
0.00110 J
0.00130 J
PCB-145
74472-40-5
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-146
51908-16-8
ng/L
ND X
0.000810
0.00110
0.000820
NDX
NDX
0.00110
0.00170
0.00170
0.00510
0.00420
0.00550
PCB-147/149
147-149
ng/L
0.00450
0.00650
0.00720
0.00660
0.00660
0.00870
0.00930
0.0120
0.0110
0.0310
0.0300
0.0320
PCB-148
74472-41-6
ng/L
ND
ND
ND
ND
ND
ND
ND B
ND B
ND B
ND B
ND B
ND B
PCB-150
68194-08-1
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-152
68194-09-2
ng/L
ND B
ND B
ND B
ND
0.000640
ND B
ND
ND B
ND
ND
ND
NDX
PCB-153/168
153-168
ng/L
0.00290
0.00440
0.00530
0.00430
0.00430
0.00500
0.00550
0.00760
0.00650
0.0210
0.0190
0.0230
PCB-154
60145-22-4
ng/L
ND B
NDXB
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-156/157
156-157
ng/L
ND JX
0.000240 J
0.000230 J
0.000150 J
0.000170 J
ND JX
ND JX
0.000480 J
ND JX
0.00160 J
0.00150 J
ND JX
PCB-158
74472-42-7
ng/L
ND JX
ND JX
0.000500
0.000430
0.000400
0.000540
0.000660
0.000950
0.000850
NDX
0.00240
0.00320
PCB-159
39635-35-3
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-161
74472-43-8
ng/L
ND B
ND B
NDXB
ND B
NDXB
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-162
39635-34-2
ng/L
ND
ND
ND
ND
ND
ND
ND
0.0000270 J
ND JX
ND
0.0000930 J
0.000150 J
PCB-164
74472-45-0
ng/L
0.000190 J
0.000540
ND JX
0.000350 J
0.000310 J
ND JX
0.000450 J
0.000570
0.000600
0.00170 J
0.00160
NDX
PCB-165
74472-46-1
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
PCB-167
52663-72-6
ng/L
0.0000530 J
ND JX
0.000120 J
ND JX
0.000110 J
ND JX
ND JX
0.000230 J
0.000200 J
0.000800 J
0.000560 J
0.000870 J
PCB-169
32774-16-6
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND
PCB-170
35065-30-6
ng/L
0.000160 J
0.000310
0.000360
NDX
0.000190
0.000350
0.000310
0.000360
0.000300
0.00210 L
0.00140
0.00210 L
PCB-171/173
171-173
ng/L
0.0000830 J
ND JX
ND JX
ND JX
0.000100 J
ND JX
0.000150 J
0.000170 J
0.000140 J
0.000640 J
ND JX
0.000760 J
PCB-172
52663-74-8
ng/L
ND
ND JX
ND
0.0000570 J
0.0000480 J
ND JX
ND
ND JX
ND JX
ND L
0.000330 J
0.000450 JL
PCB-174
38411-25-5
ng/L
0.000280
0.000580
0.000520
0.000380
0.000400
0.000520
0.000520
0.000570
0.000510
0.00280
0.00180
0.00290
PCB-175
40186-70-7
ng/L
ND
ND JX
ND
ND
ND
ND
ND
ND
ND
ND
ND JX
ND
PCB-176
52663-65-7
ng/L
ND
NDX
ND JX
ND JX
0.0000620 J
ND JX
ND
0.0000850 J
ND
ND JXL
ND
ND L
PCB-177
52663-70-4
ng/L
0.000130 J
0.000320
0.000250 J
0.000200
0.000240
0.000280 J
0.000300
NDX
NDX
0.00150 J
ND JX
NDX
PCB-178
52663-67-9
ng/L
0.0000830 J
ND JX
ND JX
0.000110 J
ND JX
ND JX
ND JX
0.000140 J
0.000150 J
ND JX
0.000630 J
ND JX
PCB-179
52663-64-6
ng/L
0.000140 J
0.000260
0.000240
ND JX
ND JX
ND JX
0.000220 J
0.000260
0.000210
0.00120 JL
0.00100 J
0.00150 L
PCB-180/193
180-193
ng/L
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND B
NDXB
ND BL
ND B
NDXBL
PCB-181
74472-47-2
ng/L
ND
ND B
ND
ND
ND
ND B
ND B
ND
ND B
ND
ND B
ND B
PCB-182
60145-23-5
ng/L
ND
ND B
ND
ND B
ND B
ND B
ND
ND B
ND B
ND B
ND B
ND
PCB-183/185
183-185
ng/L
0.000190 J
0.000400 J
ND JX
0.000280 J
0.000310 J
0.000360 J
0.000360 J
0.000450 J
0.000370 J
0.00180 J
0.00130 J
0.00200 J
PCB-186
74472-49-4
ng/L
ND
ND
ND
ND
ND
0.0000590 J
ND
ND
ND
ND JXL
ND
ND L
PCB-187
52663-68-0
ng/L
0.000410
0.000740
0.000770
0.000580
0.000650
0.000760
0.000770
0.000930
0.000750
0.00410
0.00290
0.00430
PCB-188
74487-85-7
ng/L
ND B
ND B
ND
ND
ND
ND B
ND B
ND B
ND B
ND L
ND B
ND BL
PCB-189
39635-31-9
ng/L
ND JX
ND
ND
ND
ND
ND
ND
ND JX
ND
ND JXL
ND L
ND L
PCB-190
41411-64-7
ng/L
0.0000440 J
0.0000680 J
ND
0.0000430 J
0.0000440 J
ND
0.0000680 J
0.0000710 J
0.0000660 J
0.000470 JL
ND JX
ND JXL
PCB-191
74472-50-7
ng/L
ND
ND
ND
ND
ND
ND
ND
ND
ND
ND L
ND
ND L
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
3/4
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Table 4-2
Calculated Cfree Results for SP3™ Samplers
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
SP3™ Sampler Location ID
CAS Number
Units
UP-SP3-12
UP-SP3-11
BR-SP3-10
BR-SP3-09
BR-SP3-08
BR-SP3-07
BR-SP3-06
BR-SP3-05
BR-SP3-04
MR-SP3-03
CL-SP3-02
SR-SP3-01
PCB-194
35694-08-7
ng/L
ND JX
ND JX
0.0000470 J
0.0000210 J
ND JX
0.0000360 J
0.0000450 J
0.0000440 J
ND JX
ND JXL
ND JXL
ND JXL
PCB-195
52663-78-2
ng/L
ND JX
ND
0.0000210 J
ND JX
0.0000140 J
ND JX
ND JX
0.0000270 J
0.0000190 J
ND JXL
ND JXL
ND JXL
PCB-196
42740-50-1
ng/L
ND
ND JX
ND JX
ND JX
ND JX
ND JX
0.0000230 J
0.0000310 J
ND JX
0.000400 JL
ND JXL
ND JXL
PCB-197
33091-17-7
ng/L
NDXB
ND B
NDXB
ND B
NDXB
ND B
ND B
ND B
ND B
ND BL
ND BL
ND BL
PCB-198/199
198-199
ng/L
ND
0.000110 J
ND JX
0.0000530 J
NDX
0.0000640 J
ND JX
ND JX
0.0000720 J
0.000650 JL
0.000490 JL
0.00100 JL
PCB-200
52663-73-7
ng/L
ND B
NDXB
NDXB
ND B
ND B
ND B
ND B
ND
ND
ND L
ND BL
ND L
PCB-201
40186-71-8
ng/L
ND
ND
ND JX
ND
ND
ND
0.00000860 J
ND JX
0.00000900 J
ND JXL
ND JXL
ND L
PCB-202
2136-99-4
ng/L
ND
ND
ND
ND
ND
0.0000230 J
ND JX
0.0000180 J
ND JX
0.000170 JL
ND JXL
ND L
PCB-203
52663-76-0
ng/L
ND
ND JX
ND JX
ND JX
ND JX
ND JX
0.0000430 J
0.0000440 J
ND JX
0.000530 JL
0.000300 JL
0.000580 JL
PCB-205
74472-53-0
ng/L
ND
ND
ND JX
ND
ND
0.0000120 J
0.00000810 J
ND JX
ND JX
ND JXL
ND JXL
ND JXL
PCB-206
40186-72-9
ng/L
ND
ND JX
ND
ND
ND
ND
ND JX
0.0000100 J
0.00000640 J
ND JXL
0.000110 JL
0.000190 JL
PCB-207
52663-79-3
ng/L
ND B
ND
ND B
ND B
ND B
ND B
ND B
ND B
ND B
ND BL
ND BL
ND BL
PCB-208
52663-77-1
ng/L
ND B
ND
ND
ND B
ND B
ND B
ND B
ND B
ND B
ND BL
ND BL
ND BL
PCB-209
ARC-209
ng/L
ND B
ND BL
ND BL
ND B
ND B
ND BL
ND BL
ND B
ND B
ND BL
ND BL
ND BL
Total PCBs as Congeners
-
ng/L
0.0789 J
0.145 J
0.134 J
7.01 J
7.16 J
14.4 J
23.5 J
28.6 J
30.1 J
46.7 J
41.1 J
40.6 J
Notes:
1. Stage 4 validation was completed for the analytical results summarized in this table.
2. Qualifiers included for non-detect results are based on SiREM's lab report and Stage 4 validation.
3. Non-detects are not included in the total PCB congeners.
Qualifiers:
B - The compound has been found in the sample as well as its associated blank, its presence in the sample may be suspect.
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
L - Percent to steady state less than 10%.
X - Data may only be used for screening purposes (nondefmitive data) if the quality assurance/quality control (QA/QC) deviation warrants the qualification of the data beyond estimation, but not rejection of the data.
Acronyms and Abbreviations:
CAS = Chemical Abstracts Service registry
ND = The compound was analyzed for but not detected.
ng/L = nanograms per liter
PCB = polychlorinated biphenyl
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
4/4
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Table 4-3
Analytical Results for Round 1 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
9/24/2020
9/24/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
PCB-1
2051-60-7
ng/L
0.00828 J
< 0.0208 U
< 0.0209 U
0.581
0.726
0.661
1.10 [1.19]
1.98
3.50
2.06 [1.63]
< 0.0620 UB
0.324
PCB-2
2051-61-8
ng/L
< 0.0232 U
< 0.0233 U
< 0.0234 U
< 0.0234 U
< 0.0238 U
< 0.0236 U
< 0.0237 UB [< 0.0235 UB]
< 0.0234 UB
< 0.0301 UB
< 0.0257 UB [< 0.0230 UB]
< 0.0237 U
< 0.0238 U
PCB-3
2051-62-9
ng/L
< 0.0240 U
< 0.0241 U
< 0.0242 U
< 0.127 UB
< 0.127 UB
< 0.133 UB
< 0.196 UB [< 0.226 UB]
0.294
0.444
0.392 [0.379]
< 0.0245 UB
< 0.0719 UB
PCB-4
13029-08-8
ng/L
0.0169 J
< 0.0295 UXJ
< 0.0297 UB
0.999
1.27
1.15
2.41 [2.52]
5.37
9.85
6.45 [5.18]
< 0.212 UB
1.03
PCB-5
16605-91-7
ng/L
< 0.0402 UX
< 0.0404 U
< 0.0405 U
< 0.0405 U
< 0.0412 U
< 0.0408 U
< 0.0410 U [< 0.0408 U]
< 0.0406 U
< 0.0408 U
< 0.0415 U[< 0.0404 U]
< 0.0410 U
< 0.0412 U
PCB-6
25569-80-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0769 UX
0.0981
0.0914
0.215 [0.209]
0.366
0.668
0.377 [0.328]
< 0.0260 UB
< 0.101 UB
PCB-7
33284-50-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
<0.0213 UXJ
<0.0210 UXJ
0.0437 [< 0.0411 UX]
0.106
0.203
0.144 [0.121]
<0.0211 U
< 0.0259 UB
PCB-8
34883-43-7
ng/L
< 0.0377 U
<0.0379 UXJ
< 0.0380 U
< 0.244 UB
< 0.263 UB
< 0.262 UB
0.625 [0.584]
1.43
2.58
1.94 [1.64]
< 0.144 UB
< 0.385 UB
PCB-9
34883-39-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
<0.0213 UXJ
<0.0210 UXJ
0.0420 [< 0.0375 UX]
< 0.0590 UB
0.0990
< 0.0689 UB [< 0.0607 UB]
<0.0211 U
< 0.0212 UB
PCB-10
33146-45-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0273
0.0382
0.0328
0.0632 [0.0662]
0.136
0.287
0.160 [0.116]
<0.0211 U
0.0247
PCB-11
2050-67-1
ng/L
< 0.330 U
< 0.331 U
< 0.333 U
< 0.333 U
< 0.338 U
< 0.335 U
0.203 J [< 0.334 U]
< 0.333 U
< 0.335 U
< 0.340 U[< 0.332 U]
< 0.336 U
< 0.338 U
PCB-12/13
12-13
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
<0.0418 UXJ
0.0276 J
0.0212 J
< 0.0741 UX [< 0.0802 UX]
0.142
0.231
0.152 [0.153]
< 0.0423 U
< 0.0425 UXJ
PCB-14
34883-41-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-15
2050-68-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0985
0.113
0.142
0.378 [0.345]
0.768
1.47
1.16 [1.06]
< 0.0821 UB
0.273
PCB-16
38444-78-9
ng/L
< 0.0338 U
< 0.0340 U
< 0.0341 U
< 0.0237 UB
< 0.0268 UB
< 0.0268 UB
< 0.0638 UB [< 0.0481 UB]
< 0.0764 UB
< 0.127 UB
< 0.0798 UB [< 0.0820 UB]
< 0.0345 UB
< 0.0347 UB
PCB-17
37680-66-3
ng/L
< 0.0207 UB
< 0.0208 UB
< 0.0209 UB
< 0.0747 UB
< 0.0950 UB
0.109
0.354 [0.327]
0.799
1.36
0.973 [0.852]
< 0.0723 UB
< 0.199 UB
PCB-18/30
18-30
ng/L
< 0.0601 U
< 0.0603 U
< 0.0606 U
< 0.0971 UB
< 0.0870 UB
< 0.107 UB
0.216 [< 0.190 UB]
< 0.270 UB
0.447
< 0.298 UB [< 0.281 UB]
< 0.0561 UB
< 0.137UB
PCB-19
38444-73-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0882
0.124
0.126
0.324 [0.335]
0.847
1.57
1.11 [0.945]
< 0.0439 UB
0.170
PCB-20/28
20-28
ng/L
< 0.0704 U
< 0.0707 U
< 0.0710 U
0.0949
0.0807
0.0995
0.359 [0.287]
0.758
1.31
0.862 [0.821]
< 0.123 UB
0.353
PCB-21/33
21-33
ng/L
< 0.0642 U
< 0.0645 U
< 0.0648 U
< 0.0648 U
< 0.0659 U
< 0.0652 U
0.0386 J [< 0.0651 U]
< 0.0648 UB
< 0.0652 UB
< 0.0662 U[< 0.0460 UB]
< 0.0655 U
< 0.0658 U
PCB-22
38444-85-8
ng/L
< 0.0476 U
< 0.0478 U
< 0.0481 U
0.0332 J
0.0287 J
0.0339 J
0.0897 [0.0755]
0.130
0.227
0.163 [0.164]
0.0355 J
0.0845
PCB-23
55720-44-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-24
55702-45-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U [0.00476 J]
0.00760 J
<0.0210 UXJ
0.00921 J [< 0.0208 UXJ]
<0.0211 U
< 0.0212 U
PCB-25
55712-37-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0305
0.0277
0.0342
0.120 [0.106]
0.232
0.386
0.282 [0.258]
< 0.0335 UB
0.111
PCB-26/29
26-29
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
0.0314 J
0.0337 J
0.0388 J
0.130 [0.103]
0.197
0.340
0.268 [0.247]
< 0.0423 UB
0.114
PCB-27
38444-76-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0184 J
0.0240
0.0282
0.0912 [0.0894]
0.246
0.440
0.306 [0.275]
< 0.0211 UB
0.0602
PCB-31
16606-02-3
ng/L
< 0.0770 U
< 0.0774 U
< 0.0777 U
0.0741 J
0.0814
0.0961
0.290 [0.223]
0.427
0.703
0.542 [0.52]
< 0.0842 UB
< 0.256 UB
PCB-32
38444-77-8
ng/L
0.0104 J
< 0.0208 U
< 0.0209 U
0.0641
0.0644
0.0750
0.238 [0.215]
0.593
1.06
0.754 [0.686]
< 0.0460 UB
0.156
PCB-34
37680-68-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 UXJ]
0.0124 J
0.0230
0.0168 J [0.0162 J]
<0.0211 U
0.00633 J
PCB-3 5
37680-69-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00480 J
0.00594 J [< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-36
38444-87-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-37
38444-90-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 UB
< 0.0213 UB
< 0.0210 UB
< 0.0213 UB[< 0.0210 UB]
< 0.0323 UB
0.0580
0.0468 [0.0475]
< 0.0211 UXB
< 0.0348 UB
PCB-3 8
53555-66-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-39
38444-88-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00483 J
0.00480 J [< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-40/41/71
40-41-71
ng/L
< 0.0621 UB
< 0.0624 UB
< 0.0627 U
< 0.0627 UB
< 0.0638 UB
< 0.0631 UB
0.106 [0.0922]
0.159
0.293
0.233 [0.225]
< 0.0634 UB
0.101
PCB-42
36559-22-5
ng/L
< 0.0286 U
< 0.0287 U
< 0.0288 U
0.0212 J
0.0162 J
0.0205 J
0.0538 [0.0476]
0.0823
0.155
0.119 [0.115]
0.0272 J
0.0575
PCB-43/73
43-73
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
0.0226 J
0.0386 J
0.0270 J [0.0223 J]
< 0.0423 U
< 0.0425 U
PCB-44/47/65
44-57-65
ng/L
< 0.0621 UB
< 0.0624 UB
< 0.0627 UB
< 0.0833 UB
< 0.0669 UB
< 0.0867 UB
0.225 [< 0.187 UB]
< 0.338 UB
0.600
0.442 [0.424]
< 0.0956 UB
< 0.185 UB
PCB-45/51
45-51
ng/L
< 0.0621 U
< 0.0624 U
< 0.0627 U
< 0.0627 U
< 0.0638 U
< 0.0631 U
0.0696 [0.0600 J]
0.111
0.193
0.135 [0.123]
< 0.0634 U
0.0407 J
PCB-46
41464-47-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.00687 J
0.00622 J
0.00698 J
0.0143 J [0.0133 J]
0.0245
0.0419
0.0307 [0.0295]
0.00527 J
0.0101 J
PCB-48
70362-47-9
ng/L
< 0.0870 U
< 0.0874 U
< 0.0877 U
< 0.0877 U
< 0.0893 U
< 0.0884 U
< 0.0888 U [< 0.0882 U]
< 0.0878 U
0.0524 J
< 0.0898 U [< 0.0875 U]
< 0.0888 U
< 0.0892 U
PCB-49/69
49-69
ng/L
< 0.0414 UB
< 0.0416 UB
< 0.0418 UB
< 0.0491 UB
< 0.0425 UB
< 0.0492 UB
0.124 [0.110]
0.207
0.359
0.289 [0.283]
< 0.0561 UB
0.140
PCB-50/53
50-53
ng/L
< 0.0497 U
< 0.0499 U
< 0.0501 U
< 0.0501 U
< 0.0510 U
< 0.0505 U
0.0477 J [0.0420 J]
0.0886
0.152
0.120 [0.114]
< 0.0507 U
0.0390 J
PCB-52
35693-99-3
ng/L
< 0.0911 U
< 0.0915 U
< 0.0919 U
0.0773 J
0.0642 J
0.0872 J
0.203 [0.164]
0.285
0.492
0.404 [0.388]
< 0.100 UB
< 0.193 UB
PCB-54
15968-05-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
0.00869 J
0.0156 J
0.0110 J [0.0107 J]
< 0.0211 UJ
< 0.0212 U
PCB-55
74338-24-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
<0.0210 UXJ
< 0.0214 U[< 0.0208 UXJ]
<0.0211 U
< 0.0212 U
PCB-56
41464-43-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 UB
< 0.0213 UB
< 0.0210 UB
0.0385 [< 0.0327 UB]
0.0585
0.115
0.0861 [0.086]
< 0.0251 UB
0.0588
PCB-57
70424-67-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
0.00323 J
0.00604 J
0.00522 J [< 0.00519 UXJA]
<0.0211 U
< 0.0212 U
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/4
-------
Table 4-3
Analytical Results for Round 1 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
9/24/2020
9/24/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
PCB-58
41464-49-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-59/62/75
59-62-75
ng/L
< 0.0621 U
< 0.0624 U
< 0.0627 U
0.00678 J
0.00581 J
0.00746 J
0.0224 J [0.0178 J]
0.0375 J
0.0666
0.0504 J [0.0476 J]
0.0102 J
0.0254 J
PCB-60
33025-41-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.00535 J
0.00639 J
0.00882 J
< 0.0212 UXJ [0.0159 J]
0.0316
0.0637
0.0430 [0.0443]
<0.0211 UXJ
0.0289
PCB-61/70/74/76
61-70-74-76
ng/L
< 0.0828 U
< 0.0832 U
< 0.0836 U
< 0.0836 UB
< 0.0850 UB
< 0.0842 UB
0.135 [< 0.100 UB]
0.207
0.380
0.277 [0.289]
< 0.0845 UB
0.185
PCB-63
74472-34-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
0.00936 J [0.00715 J]
0.0168 J
0.0281
0.0198 J [< 0.0179 UXJA]
0.00421 J
0.0108 J
PCB-64
52663-58-8
ng/L
< 0.0207 UB
< 0.0208 UB
< 0.0209 UB
< 0.0294 UB
< 0.0230 UB
< 0.0327 UB
0.0841 [0.0769]
0.143
0.247
0.207 [0.19]
< 0.0437 UB
0.0972
PCB-66
32598-10-0
ng/L
< 0.0314 U
< 0.0315 U
< 0.0316 U
0.0215 J
0.0233 J
0.0293 J
0.0797 [0.0645]
0.126
0.237
0.167 [0.176]
< 0.0450 UB
0.121
PCB-67
73575-53-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
0.00504 J [0.00387 J]
0.00766 J
0.0156 J
< 0.0214 UXJ [0.0133 J]
0.00461 J
0.00767 J
PCB-68
73575-52-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00987 J
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-72
41464-42-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00782 J
0.00622 J [0.00566 J]
<0.0211 U
< 0.0212 U
PCB-77
32598-13-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.00237 UXJA
< 0.0210 U
< 0.00633 UXJA [0.00627 JA
0.0109 JA
0.0211 A
0.0154 J [0.0151 JA]
0.00465 JA
0.0121 JA
PCB-78
70362-49-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 AU]
<0.0211 U
< 0.0212 U
PCB-79
41464-48-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 AU]
<0.0211 U
< 0.0212 U
PCB-80
33284-52-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-81
70362-50-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 AU]
<0.0211 U
< 0.0212 U
PCB-82
52663-62-4
ng/L
0.00307 J
< 0.0208 U
< 0.0209 U
< 0.0209 U
<0.0213 UXJ
0.00405 J
0.0113 J [< 0.0210 UXJ]
0.0116 J
<0.0210 UXJ
0.0189 J [0.0204 J]
<0.0211 UXJ
0.0137 J
PCB-83
60145-20-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
0.00301 J
0.00686 J [0.00509 J]
0.00765 J
0.0127 J
< 0.0214 UXJ [0.0108 J]
<0.0211 U
0.00905 J
PCB-84
52663-60-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
0.0106 J
0.00883 J
0.0124 J
0.0240 [0.0183 J]
0.0321
0.0521
0.0452 [0.045]
0.0142 J
0.0249
PCB-85/116/117
85-116-117
ng/L
< 0.0621 U
< 0.0624 U
< 0.0627 U
< 0.0627 U
< 0.0638 U
< 0.0631 U
0.0139 J [0.0116 J]
0.0183 J
0.0336 J
0.0283 J [0.0285 J]
0.00933 J
0.0211 J
PCB-86/87/97/108/119/125
868797108119125
ng/L
< 0.124 U
< 0.125 U
< 0.125 U
0.0176 J
0.0176 J
0.0218 J
0.0434 J [0.0337 J]
0.0523 J
0.0890 J
0.0819 J [0.0824 J]
0.0293 J
0.0565 J
PCB-88/91
88-91
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
0.0171 J [0.0144 J]
0.0256 J
0.0396 J
0.0323 J [0.0341 J]
< 0.0423 U
0.0216 J
PCB-89
73575-57-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00527 J
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-90/101/113
90-101-113
ng/L
0.0213 J
< 0.0624 U
< 0.0627 U
0.0254 J
0.0237 J
0.0304 J
0.0561 J [0.0455 J]
0.0657
0.110
0.0858 [0.0878]
0.0335 J
0.0603 J
PCB-92
52663-61-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
0.0146 J [< 0.0210 UXJ]
0.0175 J
0.0276
0.0216 [0.023]
0.00875 J
0.0142 J
PCB-93/98/100/102
9398100102
ng/L
< 0.0828 U
< 0.0832 U
< 0.0836 U
< 0.0836 U
< 0.0850 U
< 0.0842 U
< 0.0846 U [< 0.0840 U]
< 0.0836 U
< 0.0842 U
< 0.0855 U [< 0.0833 U]
< 0.0845 U
< 0.0849 U
PCB-94
73575-55-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-95
38379-99-6
ng/L
< 0.0501 U
< 0.0503 U
< 0.0506 U
0.0277 J
< 0.0514 U
0.0307 J
0.0582 [0.0470 J]
0.0795
0.126
0.0973 [0.0997]
0.0286 J
0.0601
PCB-96
73575-54-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-99
38380-01-7
ng/L
0.0101 J
0.00730 J
< 0.0209 U
0.0119 J
0.0119 J
0.0139 J
0.0291 [0.0219]
0.0387
0.0653
0.0501 [0.0509]
< 0.0211 UB
< 0.0358 UB
PCB-103
60145-21-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-104
56558-16-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
< 0.0211 UJ
< 0.0212 U
PCB-105
32598-14-4
ng/L
0.00550 J
< 0.0208 U
< 0.0209 U
< 0.0209 U
0.00570 J
0.00630 J
0.0154 J [0.0123 J]
0.0226
0.0381
0.0309 [0.0332]
0.0117 J
0.0265
PCB-106
70424-69-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-107/124
107-124
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-109
74472-35-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
0.00460 J
0.00798 J
< 0.0214 UXJ [0.00637 J]
<0.0211 U
0.00663 J
PCB-110/115
110-115
ng/L
< 0.0414 UB
< 0.0416 UB
< 0.0418 U
< 0.0418 UB
< 0.0425 UB
< 0.0421 UB
0.0774 [< 0.0602 UB]
0.0959
0.160
0.138 [0.138]
< 0.0480 UB
0.108
PCB-111
39635-32-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-112
74472-36-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-114
74472-37-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 AU[< 0.0210 U]
< 0.0209 U
0.00312 J
0.00290 J [< 0.0208 AU]
<0.0211 U
0.00259 J
PCB-118
31508-00-6
ng/L
0.0124 J
0.0121 J
< 0.0209 U
0.0164 J
0.0156 J
0.0166 J
0.0384 [0.0276]
< 0.0474 UB
0.0835
0.0650 [0.0692]
< 0.0278 UB
0.0604
PCB-120
68194-12-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-121
56558-18-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-122
76842-07-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-123
65510-44-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-126
57465-28-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 AU]
<0.0211 U
< 0.0212 U
PCB-127
39635-33-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-128/166
128-166
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-129/138/163
129-138-163
ng/L
0.0348 J
< 0.0624 UXJ
< 0.0627 U
0.0277 J
0.0253 J
0.0277 J
0.0419 J [0.0322 J]
0.0339 J
0.0473 J
0.0355 J [0.0379 J]
< 0.0634 U
< 0.0637 UXJ
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
2/4
-------
Table 4-3
Analytical Results for Round 1 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
9/24/2020
9/24/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
PCB-130
52663-66-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-131
61798-70-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-132
38380-05-1
ng/L
0.0107 J
0.00767 J
< 0.0209 U
0.00804 J
0.00868 J
0.00915 J
0.0151 J [0.0106 J]
0.0124 J
0.0170 J
0.0127 J [0.0130 J]
<0.0211 U
0.0111 J
PCB-133
35694-04-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-134/143
134-143
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-135/151
135-151
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
0.0167 J
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-136
38411-22-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
0.00714 J
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-137
35694-06-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-139/140
139-140
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-141
52712-04-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
0.00755 J [< 0.0210 U]
< 0.0209 U
0.00817 J
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-142
41411-61-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-144
68194-14-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-145
74472-40-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-146
51908-16-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-147/149
147-149
ng/L
< 0.0497 U
< 0.0499 U
< 0.0501 U
< 0.0501 U
< 0.0510 U
< 0.0505 U
0.0346 J [< 0.0504 U]
0.0276 J
0.0370 J
< 0.0513 U [0.0318 J]
< 0.0507 U
< 0.0510 U
PCB-148
74472-41-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-150
68194-08-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-152
68194-09-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-153/168
153-168
ng/L
0.0257 J
< 0.0462 U
< 0.0464 U
< 0.0464 U
< 0.0472 U
< 0.0467 U
0.0340 J [0.0241 J]
0.0236 J
0.0336 J
< 0.0474 U [0.0238 J]
< 0.0469 U
< 0.0471 U
PCB-154
60145-22-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-155
33979-03-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
< 0.0211 UJ
< 0.0212 U
PCB-156/157
156-157
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
0.00633 J [< 0.0420 U]
< 0.0418 U
0.00660 J
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-158
74472-42-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-159
39635-35-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-160
41411-62-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-161
74472-43-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-162
39635-34-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-164
74472-45-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-165
74472-46-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-167
52663-72-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-169
32774-16-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-170
35065-30-6
ng/L
< 0.0211 U
< 0.0212 U
< 0.0213 U
< 0.0213 U
< 0.0217 U
< 0.0215 U
< 0.0216 U[< 0.0214 U]
< 0.0213 U
< 0.0215 U
< 0.0218 U[< 0.0212 U]
< 0.0216 U
< 0.0217 U
PCB-171/173
171-173
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-172
52663-74-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-174
38411-25-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-175
40186-70-7
ng/L
< 0.0377 U
< 0.0379 U
< 0.0380 U
< 0.0380 U
< 0.0387 U
< 0.0383 U
< 0.0385 U [< 0.0382 U]
< 0.0380 U
< 0.0383 U
< 0.0389 U [< 0.0379 U]
< 0.0385 U
< 0.0386 U
PCB-176
52663-65-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-177
52663-70-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-178
52663-67-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-179
52663-64-6
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-180/193
180-193
ng/L
< 0.0456 U
< 0.0458 U
< 0.0460 U
< 0.0460 U
< 0.0468 U
< 0.0463 U
< 0.0465 U [< 0.0462 U]
< 0.0460 U
< 0.0463 U
< 0.0470 U [< 0.0458 U]
< 0.0465 U
< 0.0467 U
PCB-181
74472-47-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-182
60145-23-5
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-183/185
183-185
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-184
74472-48-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-186
74472-49-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-187
52663-68-0
ng/L
0.0108 J
0.00873 J
0.00379 J
< 0.0209 UXJ
0.00640 J
0.00717 J
< 0.0212 UXJ [< 0.0210 UXJ]
0.00737 J
0.0106 J
0.00646 J [0.00779 J]
<0.0211 UXJ
0.00587 J
PCB-188
74487-85-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
3/4
-------
Table 4-3
Analytical Results for Round 1 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
CAS Number
Units
9/24/2020
9/24/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/23/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
9/22/2020
PCB-189
39635-31-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 AU[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
<0.0212 AU
PCB-190
41411-64-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-191
74472-50-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-192
74472-51-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-194
35694-08-7
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-195
52663-78-2
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-196
42740-50-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-197/200
197-200
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-19 8/199
198-199
ng/L
< 0.0414 U
< 0.0416 U
< 0.0418 U
< 0.0418 U
< 0.0425 U
< 0.0421 U
< 0.0423 U [< 0.0420 U]
< 0.0418 U
< 0.0421 U
< 0.0427 U[< 0.0417 U]
< 0.0423 U
< 0.0425 U
PCB-201
40186-71-8
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-202
2136-99-4
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-203
52663-76-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-204
74472-52-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-205
74472-53-0
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-206
40186-72-9
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-207
52663-79-3
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-208
52663-77-1
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
< 0.0213 U
< 0.0210 U
< 0.0212 U[< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
PCB-209
ARC-209
ng/L
< 0.0207 U
< 0.0208 U
< 0.0209 U
< 0.0209 U
0.00627 J
< 0.0210 U
0.00814 J [< 0.0210 U]
< 0.0209 U
< 0.0210 U
< 0.0214 U[< 0.0208 U]
<0.0211 U
< 0.0212 U
Total PCB Congeners
-
ng/L
0.170 J
0.0358 J
0.00379 J
2.42 J
2.99 J
3.08 J
9.10 J [7.71 J]
17.1 J
31.9 J
21.6 J [18.9 J]
0.227 J
4.14 J
Notes:
1. Surface water samples were field-filtered using 0.45-micron filter prior to the laboratory analysis.
2. Stage 4 validation was completed for the analytical results summarized in this table.
3. Non-detects are not included in the total PCB congeners.
4. Duplicate sample results are included in brackets.
Qualifiers:
A - Concentrations (levels) determined using the signal-to-noise response.
B - The compound has been found in the sample as well as its associated blank, its presence in the sample may be suspect.
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
U - The compound was analyzed for but not detected. The associated value is the compound limit of detection.
UB - The compound considered non-detect at the listed value due to associated blank contamination.
UJ - The compound was not detected above the reported sample quantitation limit. However, the reported limit is approximate and may or may not represent the actual limit of quantitation.
X - Data may only be used for screening purposes (nondefinitive data) if the quality assurance/quality control (QAQC) deviation warrants the qualification of the data beyond estimation, but not rejection of the data.
Acronyms and Abbreviations:
CAS = Chemical Abstracts Service registry
ng/L = nanograms per liter
PCB = polychlorinated biphenyl
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 4-4
Analytical Results for Round 2 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
PCB-1
2051-60-7
ng/L
< 0.0210 UB
< 0.0210 UB
< 0.0211 UB
1.81 [2.25]
1.45
1.42
2.48
3.42
0.0697 B
1.32
0.983 J [2.15 J]
1.86 J
PCB-2
2051-61-8
ng/L
< 0.0235 U
< 0.0235 U
< 0.0236 U
0.0121 J [< 0.0235 U]
< 0.0233 U
0.0146 J
< 0.0238 UXJ
0.0172 J
< 0.0237 U
< 0.0238 U
< 0.0234 UJ [< 0.0238 UXJ]
< 0.0228 UXJ
PCB-3
2051-62-9
ng/L
< 0.0244 U
< 0.0243 U
< 0.0244 U
0.232 [0.287]
0.163
0.185
0.340
0.358
< 0.0245 UXJ
0.193
0.145 J [1.09 J]
0.225
PCB-4
13029-08-8
ng/L
< 0.0298 U
< 0.0298 U
< 0.0299 U
2.52 [3.29]
1.97
2.05
4.43
6.28
< 0.164 UB
3.67
3.23 [3.83 J]
8.55 J
PCB-5
16605-91-7
ng/L
< 0.0408 U
< 0.0407 U
< 0.0409 U
< 0.0401 U[< 0.0407 U]
< 0.0403 U
< 0.0410 U
< 0.0412 U
< 0.0404 U
< 0.0410 U
< 0.0412 U
< 0.0405 U [< 0.0413 UBJ]
< 0.0395 U
PCB-6
25569-80-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.0762 [0.0829]
0.0463
0.0757
0.208
0.182
0.0149 J
0.240
0.215 [<0.0213 UXJ]
0.553
PCB-7
33284-50-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 UXJ [0.0163 J]
< 0.0208 UXJ
0.0154 J
0.0639
0.0548
< 0.0212 U
0.0890
0.0689 [0.343 J]
0.154
PCB-8
34883-43-7
ng/L
< 0.0383 U
< 0.0382 U
< 0.0383 U
0.286 [0.328]
0.190
0.251
0.693
0.727
0.0812
1.06
0.843 [< 0.0388 UXJ]
1.81
PCB-9
34883-39-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 UB[< 0.0210 UB]
< 0.0208 UB
< 0.0211 UB
0.0496
< 0.0391 UB
< 0.0212 U
0.0484
< 0.0450 UB [< 0.0213 UX]
0.123
PCB-10
33146-45-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.0540 [0.0618]
0.0448
0.0442
0.0960
0.127
< 0.0212 U
0.0658
0.0627 [0.142]
0.150
PCB-11
2050-67-1
ng/L
< 0.335 U
< 0.334 U
< 0.335 U
< 0.329 U [< 0.334 U]
< 0.331 UB
< 0.336 U
< 0.338 U
< 0.331 U
< 0.337 U
< 0.338 U
< 0.332 U[< 0.377 UB]
< 0.324 U
PCB-12/13
12-13
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U [< 0.0420 UXJ]
< 0.0415 U
< 0.0423 UXJ
0.0562
0.0367 J
< 0.0423 U
0.0918
0.0961 [0.660]
0.245
PCB-14
34883-41-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-15
2050-68-2
ng/L
< 0.0210 UJ
< 0.0210 UJ
< 0.0211 UJ
0.0620 J [0.0737 J]
< 0.0208 UBJ
0.0609 J
0.258 J
0.173
0.0395
0.594
0.657 [0.968 J]
1.64 J
PCB-16
38444-78-9
ng/L
< 0.0343 U
< 0.0343 U
< 0.0344 U
< 0.0338 U [< 0.0343 U]
< 0.0339 U
< 0.0345 U
0.0391
0.0400
< 0.0346 U
0.0603
0.0684 [0.101]
0.189
PCB-17
37680-66-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.0591 [0.0591]
0.0444
0.0647
0.266
0.239
0.0361
0.515
0.498 [0.627]
1.27
PCB-18/30
18-30
ng/L
< 0.0610 U
< 0.0608 U
< 0.0611 U
0.0466 J [0.0473 J]
0.0321 J
0.0450 J
0.125
0.105
< 0.0614 U
0.175
0.213 [0.393]
0.624
PCB-19
38444-73-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.153 [0.187]
0.117
0.135
0.471
0.675
< 0.0380 UB
0.661
0.572 [0.759]
1.51 J
PCB-20/28
20-28
ng/L
<0.0715 U
< 0.0713 U
< 0.0716 U
< 0.0704 U[< 0.0714 U]
< 0.0706 U
< 0.0718 U
0.135
0.100
0.0512 J
0.560
0.670 [0.842]
1.93
PCB-21/33
21-33
ng/L
< 0.0652 U
< 0.0650 U
< 0.0653 U
< 0.0642 U[< 0.0651 U]
< 0.0644 U
< 0.0655 U
< 0.0658 U
< 0.0645 U
< 0.0656 U
< 0.0658 U
< 0.0647 U [0.162]
0.0792
PCB-22
38444-85-8
ng/L
< 0.0483 U
< 0.0482 U
< 0.0484 U
< 0.0476 U [< 0.0483 U]
< 0.0478 U
< 0.0486 U
0.0402 J
0.0242 J
< 0.0487 U
0.109
0.137 [0.188]
0.383
PCB-23
55720-44-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0352]
< 0.0204 U
PCB-24
55702-45-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00580 J
< 0.0208 U
< 0.0212 U
<0.0212 UXJ
0.00812 J [0.0362]
0.0129 J
PCB-25
55712-37-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 UXJ [< 0.0210 UXJ]
0.00519 J
0.00759 J
0.0558
0.0310
0.0130 J
0.167
0.193 [0.280]
0.546
PCB-26/29
26-29
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
0.0113 J [0.0114 J]
< 0.0415 U
0.0112 J
0.0591
0.0356 J
0.0141 J
0.145
0.201 [0.340]
0.607
PCB-27
38444-76-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.0165 J [0.0161 J]
0.0112 J
0.0181 J
0.0827
0.0899
0.0110 J
0.169
0.160 [0.191]
0.376
PCB-31
16606-02-3
ng/L
< 0.0782 U
< 0.0780 U
< 0.0783 U
< 0.0770 U[< 0.0781 U]
< 0.0772 U
< 0.0786 U
0.119
0.0755 J
< 0.0787 U
0.347
0.459 [0.676]
1.38
PCB-32
38444-77-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
0.0405 [0.0440]
0.0284
0.0397
0.196
0.182
0.0291
0.390
0.355 [0.405]
0.825
PCB-34
37680-68-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00995 J
0.00927 J [0.0444]
0.0240
PCB-3 5
37680-69-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.150]
0.00770 J
PCB-36
38444-87-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0603]
< 0.0204 U
PCB-3 7
38444-90-5
ng/L
< 0.0210 U
< 0.0210 U
0.00425 J
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00755 J
< 0.0208 U
0.00444 J
0.0363
0.0564 [0.182 J]
0.157
PCB-3 8
53555-66-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0455]
< 0.0204 U
PCB-39
38444-88-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
0.00711 J
PCB-40/41/71
40-41-71
ng/L
<0.0631 U
< 0.0629 U
0.00778 J
0.00876 J [0.00814 J]
0.00808 J
0.00834 J
0.0451 J
0.0224 J
0.0194 J
0.143
0.170 [0.309]
0.452
PCB-42
36559-22-5
ng/L
< 0.0290 U
< 0.0289 U
< 0.0291 U
< 0.0286 U [< 0.0290 U]
< 0.0287 U
< 0.0292 U
0.0203 J
< 0.0287 U
< 0.0292 U
0.0754
0.0932 [0.163]
0.259
PCB-43/73
43-73
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
0.0260 J [0.0566]
0.0488
PCB-44/47/65
44-57-65
ng/L
< 0.0631 UB
< 0.0629 UB
< 0.0632 UB
< 0.0621 UB [< 0.0630 UB]
< 0.0623 UB
< 0.0634 UB
< 0.0941 UB
< 0.0624 UB
< 0.0635 UB
0.290
0.322 [0.767]
0.838
PCB-45/51
45-51
ng/L
<0.0631 U
< 0.0629 U
< 0.0632 U
< 0.0621 U [< 0.0630 U]
< 0.0623 U
< 0.0634 U
0.0400 J
0.0312 J
< 0.0635 U
0.0920
0.0902 [0.350]
0.238
PCB-46
41464-47-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00909 J
0.00593 J
< 0.0212 U
0.0203 J
0.0217 [0.0468]
0.0555
PCB-48
70362-47-9
ng/L
< 0.0883 U
< 0.0881 U
< 0.0885 U
< 0.0869 U [< 0.0882 U]
< 0.0872 U
< 0.0887 U
< 0.0891 U
< 0.0874 U
< 0.0889 U
< 0.0892 U
< 0.0877 U [0.0839 J]
0.0672 J
PCB-49/69
49-69
ng/L
< 0.0420 UB
< 0.0420 UB
< 0.0421 UB
< 0.0414 UB[< 0.0420 UB]
< 0.0415 UB
< 0.0423 UB
0.0515
< 0.0416 UB
< 0.0423 UB
0.200
0.251 [0.451]
0.693
PCB-50/53
50-53
ng/L
< 0.0504 U
< 0.0503 U
< 0.0505 U
< 0.0497 U [< 0.0504 U]
< 0.0498 U
< 0.0507 U
0.0309 J
< 0.0499 U
< 0.0508 U
0.0818
0.0899 [0.152]
0.235
PCB-52
35693-99-3
ng/L
< 0.0925 U
< 0.0923 U
< 0.0927 U
< 0.0911 U[< 0.0924 U]
< 0.0914 U
< 0.0930 U
0.0811 J
0.0575 J
< 0.0931 U
0.285
0.348 [0.437]
0.964
PCB-54
15968-05-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0317 J]
0.0180 J
PCB-5 5
74338-24-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00705 J
0.00616 J [0.0373]
0.0158 J
PCB-56
41464-43-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.0146 J
< 0.0208 U
0.0116 J
0.0612
0.0793 [0.164]
0.212
PCB-5 7
70424-67-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00327 J
< 0.0209 UXJ [0.0651]
< 0.0204 UXJ
PCB-5 8
41464-49-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-59/62/75
59-62-75
ng/L
<0.0631 U
< 0.0629 U
< 0.0632 U
< 0.0621 U [< 0.0630 U]
< 0.0623 U
< 0.0634 U
0.00999 J
< 0.0624 U
< 0.0635 U
0.0348 J
0.0391 J [0.169]
0.110
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/4
-------
Table 4-4
Analytical Results for Round 2 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
PCB-60
33025-41-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00732 J
< 0.0208 U
0.00507 J
0.0327
0.0380 [0.103]
0.111
PCB-61/70/74/76
61-70-74-76
ng/L
< 0.0841 U
< 0.0839 U
< 0.0842 U
< 0.0828 U [< 0.0840 U]
< 0.0831 U
< 0.0845 U
0.0480 J
0.0229 J
0.0364 J
0.221
0.262 [0.351]
0.752
PCB-63
74472-34-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00367 J
< 0.0208 U
< 0.0212 U
0.0147 J
0.0178 J [<0.0213 UX]
0.0508
PCB-64
52663-58-8
ng/L
< 0.0210 U
< 0.0210 UB
< 0.0211 UB
< 0.0207 UB[< 0.0210 UB]
< 0.0208 UB
< 0.0211 LTB
0.0342
< 0.0208 LTB
< 0.0212 UB
0.133
0.160 [0.265]
0.476
PCB-66
32598-10-0
ng/L
< 0.0318 U
< 0.0318 U
<0.0319 U
< 0.0313 U[< 0.0318 LT]
< 0.0314 U
< 0.0320 U
0.0265 J
< 0.0315 U
0.0215 J
0.133
0.167 [0.320]
0.485
PCB-67
73575-53-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00819 J
0.00989 J [< 0.0213 UX]
0.0242
PCB-68
73575-52-7
ng/L
0.0185 J
0.0177 J
0.0175 J
0.0153 J [0.0164 J]
0.0144 J
0.0162 J
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0744]
0.0135 J
PCB-72
41464-42-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
0.00469 J [< 0.0213 UX]
0.0137 J
PCB-77
32598-13-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00450 J
< 0.0208 U
< 0.0212 UXJ
0.0121 J
0.0145 J [0.118]
0.0414
PCB-78
70362-49-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0628]
< 0.0204 U
PCB-79
41464-48-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0756]
< 0.0204 U
PCB-80
33284-52-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0232]
< 0.0204 U
PCB-81
70362-50-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0614]
< 0.0204 U
PCB-82
52663-62-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 UXJ
< 0.0208 U
0.00377 J
0.0119 J
0.0144 J [<0.0213 UXJ]
0.0302
PCB-83
60145-20-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
0.00278 J
0.00262 J
< 0.0208 U
< 0.0212 U
0.00706 J
0.00850 J [0.0477 J]
0.0198 J
PCB-84
52663-60-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00979 J
< 0.0208 U
0.00827 J
0.0300
0.0329 J [0.0806 J]
0.0802
PCB-85/116/117
85-116-117
ng/L
<0.0631 U
< 0.0629 U
< 0.0632 U
< 0.0621 U [< 0.0630 U]
< 0.0623 U
< 0.0634 U
< 0.0636 U
< 0.0624 U
< 0.0635 U
0.0181 J
0.0208 J [0.142 J]
0.0532 J
PCB-86/87/97/108/119/125
868797108119125
ng/L
< 0.126 LT
< 0.126 U
< 0.126 U
< 0.124 LT [< 0.126 LT]
< 0.125 U
< 0.127 LT
0.0193 J
< 0.125 U
< 0.127 LT
0.0484 J
0.0593 J [0.399 J]
0.138
PCB-88/91
88-91
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
0.0228 J
0.0237 J [0.0654 J]
0.0653
PCB-89
73575-57-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UXJ]
0.00760 J
PCB-90/101/113
90-101-113
ng/L
<0.0631 U
< 0.0629 U
< 0.0632 U
< 0.0621 U [< 0.0630 U]
< 0.0623 U
< 0.0634 U
0.0199 J
< 0.0624 U
< 0.0635 U
0.0580 J
0.0656 J [0.252 J]
0.153
PCB-92
52663-61-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.0156 J
0.0184 J [0.0962 J]
0.0463
PCB-93/98/100/102
9398100102
ng/L
< 0.0841 U
< 0.0839 U
< 0.0842 U
< 0.0828 U [< 0.0840 U]
< 0.0831 U
< 0.0845 U
< 0.0849 U
< 0.0832 U
< 0.0846 U
< 0.0850 U
< 0.0835 U [0.168]
0.0333 J
PCB-94
73575-55-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0293]
< 0.0204 U
PCB-95
38379-99-6
ng/L
< 0.0509 U
< 0.0508 U
< 0.0510 U
< 0.0501 U[< 0.0508 U]
< 0.0503 U
< 0.0511 U
< 0.0513 U
< 0.0503 U
< 0.0512 U
0.0661
0.0752 J [0.132 J]
0.178
PCB-96
73575-54-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0228]
< 0.0204 U
PCB-99
38380-01-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
0.00720 J
0.00945 J
< 0.0208 U
0.00942 J
0.0353
0.0400 J [0.260 J]
0.105
PCB-103
60145-21-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0505]
< 0.0204 U
PCB-104
56558-16-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-105
32598-14-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00749 J
< 0.0208 U
0.00768 J
0.0248
0.0278 J [0.144 J]
0.0755
PCB-106
70424-69-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0640]
< 0.0204 U
PCB-107/124
107-124
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 U [0.120]
0.00580 J
PCB-109
74472-35-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00546 J
0.00563 J [0.104 J]
0.0142 J
PCB-110/115
110-115
ng/L
< 0.0420 U
< 0.0420 U
0.0167 J
< 0.0414 U [0.0145 J]
< 0.0415 U
< 0.0423 U
0.0239 J
< 0.0416 U
0.0231 J
0.0827
0.103 J [0.232 J]
0.246
PCB-111
39635-32-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0566]
< 0.0204 U
PCB-112
74472-36-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0130 J]
< 0.0204 U
PCB-114
74472-37-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 UJ
< 0.0212 UJ
< 0.0212 UJ
0.00230 J [< 0.0213 UXJ]
0.00645 J
PCB-118
31508-00-6
ng/L
< 0.0210 U
< 0.0210 U
0.00964 J
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.0137 J
< 0.0208 U
0.0154 J
0.0482
0.0585 J [0.214 J]
0.143
PCB-120
68194-12-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0798 J]
< 0.0204 U
PCB-121
56558-18-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-122
76842-07-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0591]
< 0.0204 U
PCB-123
65510-44-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0671 J]
0.00443 J
PCB-126
57465-28-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
0.00377 J
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.116 J]
< 0.0204 U
PCB-127
39635-33-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0392]
< 0.0204 U
PCB-128/166
128-166
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 U [0.109]
< 0.0407 U
PCB-129/13 8/163
129-138-163
ng/L
<0.0631 U
< 0.0629 U
< 0.0632 U
< 0.0621 U [< 0.0630 U]
< 0.0623 U
< 0.0634 U
< 0.0636 U
< 0.0624 U
< 0.0635 U
0.0241 J
0.0270 J [0.287 J]
0.0543 J
PCB-130
52663-66-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.124 J]
< 0.0204 U
PCB-131
61798-70-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0919 J]
< 0.0204 U
PCB-132
38380-05-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
0.00829 J
< 0.0209 UXJ [< 0.0213 UX]
0.0191 J
PCB-133
35694-04-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0475]
< 0.0204 U
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
2/4
-------
Table 4-4
Analytical Results for Round 2 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
CAS Number
Units
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
PCB-134/143
134-143
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 U [< 0.0426 UX]
< 0.0407 U
PCB-135/151
135-151
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.172 J]
0.0161 J
PCB-136
38411-22-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0487 J]
< 0.0204 U
PCB-137
35694-06-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.134 J]
< 0.0204 U
PCB-139/140
139-140
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.256 J]
< 0.0407 U
PCB-141
52712-04-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.106 J]
0.00860 J
PCB-142
41411-61-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0409]
< 0.0204 U
PCB-144
68194-14-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.136 J]
< 0.0204 U
PCB-145
74472-40-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0369]
< 0.0204 U
PCB-146
51908-16-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.235]
0.00844 J
PCB-147/149
147-149
ng/L
< 0.0504 U
< 0.0503 U
< 0.0505 U
< 0.0497 U [< 0.0504 U]
< 0.0498 U
< 0.0507 U
< 0.0509 U
< 0.0499 U
< 0.0508 U
< 0.0510 U
< 0.0501 U [0.146]
0.0378 J
PCB-148
74472-41-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0535]
< 0.0204 U
PCB-150
68194-08-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0563]
< 0.0204 U
PCB-152
68194-09-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0185 J]
< 0.0204 U
PCB-153/168
153-168
ng/L
< 0.0467 U
< 0.0466 U
< 0.0468 U
< 0.0459 U [< 0.0466 U]
< 0.0461 U
< 0.0469 U
< 0.0471 U
< 0.0462 U
< 0.0470 U
< 0.0471 U
< 0.0463 UJ [0.147 J]
0.0361 J
PCB-154
60145-22-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-155
33979-03-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0322]
< 0.0204 U
PCB-156/157
156-157
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
0.00707 J
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.376 J]
0.00708 J
PCB-158
74472-42-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.147 J]
< 0.0204 U
PCB-159
39635-35-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-160
41411-62-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-161
74472-43-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0581]
< 0.0204 U
PCB-162
39635-34-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-164
74472-45-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-165
74472-46-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-167
52663-72-6
ng/L
< 0.0210 UJ
< 0.0210 UJ
< 0.0211 UJ
< 0.0207 UJ[< 0.0210 UJ]
< 0.0208 UJ
< 0.0211 UJ
< 0.0212 UJ
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.149 J]
< 0.0204 U
PCB-169
32774-16-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0576]
< 0.0204 U
PCB-170
35065-30-6
ng/L
< 0.0214 U
< 0.0214 U
< 0.0215 U
< 0.0211 U[< 0.0214 U]
< 0.0212 U
< 0.0216 U
< 0.0216 U
< 0.0212 U
< 0.0216 U
< 0.0217 U
< 0.0213 UJ [0.160 J]
< 0.0208 U
PCB-171/173
171-173
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.308 J]
< 0.0407 U
PCB-172
52663-74-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.200 J]
< 0.0204 U
PCB-174
38411-25-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0979 J]
< 0.0204 U
PCB-175
40186-70-7
ng/L
< 0.0383 U
< 0.0382 U
< 0.0383 U
< 0.0377 U[< 0.0382 U]
< 0.0378 U
< 0.0385 U
< 0.0386 U
< 0.0379 U
< 0.0385 U
< 0.0387 U
< 0.0380 UJ [0.213 J]
< 0.0371 U
PCB-176
52663-65-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.175 J]
< 0.0204 U
PCB-177
52663-70-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-178
52663-67-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.112 J]
< 0.0204 U
PCB-179
52663-64-6
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0730]
< 0.0204 U
PCB-180/193
180-193
ng/L
< 0.0462 U
< 0.0461 U
< 0.0463 U
< 0.0455 U[< 0.0462 U]
< 0.0457 U
< 0.0465 U
< 0.0467 U
< 0.0458 U
< 0.0465 U
< 0.0467 U
< 0.0459 UJ [0.275 J]
< 0.0448 U
PCB-181
74472-47-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0980 J]
< 0.0204 U
PCB-182
60145-23-5
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0892 J]
< 0.0204 U
PCB-183/185
183-185
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.304 J]
< 0.0407 U
PCB-184
74472-48-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.112 J]
< 0.0204 U
PCB-186
74472-49-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0477]
< 0.0204 U
PCB-187
52663-68-0
ng/L
< 0.0210 U
< 0.0210 U
0.00387 J
0.00295 J [0.00295 J]
< 0.0208 U
0.00465 J
0.00398 J
< 0.0208 U
0.00329 J
0.00502 J
0.00406 J [0.135 J]
0.00872 J
PCB-188
74487-85-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0841 J]
< 0.0204 U
PCB-189
39635-31-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 UXJ
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U[< 0.0213 UX]
< 0.0204 U
PCB-190
41411-64-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.119 J]
< 0.0204 U
PCB-191
74472-50-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.121 J]
< 0.0204 U
PCB-192
74472-51-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 U [0.0379]
< 0.0204 U
PCB-194
35694-08-7
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.178 J]
< 0.0204 U
PCB-195
52663-78-2
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.168 J]
< 0.0204 U
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
3/4
-------
Table 4-4
Analytical Results for Round 2 Discrete Surface Water Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Discrete Surface Water
Sample Location ID
UP-SW-12
UP-SW-11
BR-SW-10
BR-SW-09
BR-SW-08
BR-SW-07
BR-SW-06
BR-SW-05
BR-SW-04
MR-SW-03
CL-SW-02
SR-SW-01
Sample Date
CAS Number
Units
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/08/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
11/07/2020
PCB-196
42740-50-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.394 J]
< 0.0204 U
PCB-197/200
197-200
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.414 J]
< 0.0407 U
PCB-198/199
198-199
ng/L
< 0.0420 U
< 0.0420 U
< 0.0421 U
< 0.0414 U[< 0.0420 U]
< 0.0415 U
< 0.0423 U
< 0.0424 U
< 0.0416 U
< 0.0423 U
< 0.0425 U
< 0.0418 UJ [0.349 J]
< 0.0407 U
PCB-201
40186-71-8
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.221 J]
< 0.0204 U
PCB-202
2136-99-4
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211 U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.0657 J]
< 0.0204 U
PCB-203
52663-76-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.208 J]
< 0.0204 U
PCB-204
74472-52-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.125 J]
< 0.0204 U
PCB-205
74472-53-0
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.172 J]
< 0.0204 U
PCB-206
40186-72-9
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.696 J]
< 0.0204 U
PCB-207
52663-79-3
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.825 J]
< 0.0204 U
PCB-208
52663-77-1
ng/L
< 0.0210 U
< 0.0210 U
< 0.0211U
< 0.0207 U[< 0.0210 U]
< 0.0208 U
< 0.0211 U
< 0.0212 U
< 0.0208 U
< 0.0212 U
< 0.0212 U
< 0.0209 UJ [0.422 J]
< 0.0204 U
PCB-209
ARC-209
ng/L
< 0.0210 UB
< 0.0246 UB
< 0.0211 UB
< 0.0207 UB[< 0.0210 UB]
< 0.0208 UB
< 0.0276 UB
< 0.0212 UB
< 0.0208 UB
< 0.0212 UB
< 0.0213 UB
< 0.0209 UBJ [1.30 J]
< 0.0204 UB
Total PCB Congeners
-
ng/L
0.0185 J
0.0177 J
0.0597 J
5.41 J [6.80 J]
4.12 J
4.48 J
10.8 J
13.1 J
0.529 J
13.1 J
12.7 J [33.9 J]
33.0 J
Notes:
1. Surface water samples were field-filtered using 0.45-micron filter prior to the laboratory analysis.
2. Stage 4 validation was completed for the analytical results summarized in this table.
3. Non-detects are not included in the total PCB congeners.
4. Duplicate sample results are included in brackets.
Qualifiers:
B - The compound has been found in the sample as well as its associated blank, its presence in the sample may be suspect.
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
U - The compound was analyzed for but not detected. The associated value is the compound limit of detection.
UB - The compound considered non-detect at the listed value due to associated blank contamination.
UJ - The compound was not detected above the reported sample quantitation limit. However, the reported limit is approximate and may or may not represent the actual limit of quantitation.
X - Data may only be used for screening purposes (nondefinitive data) if the quality assurance/quality control (QA/QC) deviation warrants the qualification of the data beyond estimation, but not rejection of the data.
Acronyms and Abbreviations:
CAS = Chemical Abstracts Service registry
ng/L = nanograms per liter
PCB = polychlorinated biphenyl
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 4-5
Statistical Summary for Surface Water Sample Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Location ID
Frequency of
Detection
Total PCB Congeners (ng/L)
Minimum
Maximum
Mean
Standard
Deviation
10%-tile
25%-tile
50%-tile
75%-tile
90%-tile
95%-tile
SP3™ Sampling
Site-wide (excluding background)
10/10 (100%)
0.134
46.7
23.9
16.2
6.33
8.97
26.1
38.0
41.6
44.2
Upstream of Site
2/2 i inn".,)
0.0789
0.145
-
-
-
-
-
-
-
-
Highway M-59 to Bowen Road
7/7 (100%)
0.134
30.1
15.8
11.7
4.26
7.09
14.4
26.1
29.2
29.7
West Marr Road
1/1 (100%)
46.7
46.7
-
-
-
-
-
-
-
-
Chase Lake Road
1/1 (100%)
41.1
41.1
-
-
-
-
-
-
-
-
Steinecker Road
1/1 (100%)
40.6
40.6
-
-
-
-
-
-
-
-
Surface Water Grab Sampling
Site-wide (excluding background)
20/20 (100%)
0.00379
33.0
9.95
10.3
0.210
2.85
5.29
14.1
24.1
31.9
Upstream of Site
4/4 i Kid".,)
0.0177
0.170
0.0605
0.0735
0.0179
0.0183
0.0272
0.0693
0.130
0.150
Highway M-59 to Bowen Road
14/14 (100%)
0.00379
31.9
7.51
8.67
0.201
2.57
4.30
10.2
15.9
22.3
West Marr Road
2/2 i Kiti".,)
13.1
20.3
-
-
-
-
-
-
-
-
Chase Lake Road
2/2 i Kiti".,)
0.227
23.3
-
-
-
-
-
-
-
-
Steinecker Road
2/2 i Kid".,)
4.14
33
-
-
-
-
-
-
-
-
Notes:
1. Summary statistics not reported for datasets with small sample size (n<4) and/or low frequency of detection (<50° o).
2. Kaplan-Meier mean and standard deviation reported for datasets with non-detect results.
3. Arithmetic mean and standard deviation reported for datasets with no non-detect results
4. Non-detects included at the detection limit in percentile estimation.
Acronyms and Abbreviations:
ng/L = nanograms per liter
PCB = polychlorinated biphenyl
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/1
-------
Table 4-6
Estimation of River Discharge Rates
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Round 1 Surface Water Grab Sampling Event in
September 20201
(SP3™ Sampler Deployment)
Round 2 Surface Water Grab Sampling Event in November
20201
(SP3™ Sampler Retrieval)
SP3™ Sampling
Location ID
River Station
Channel Width (ft)
Water Depth at
Thalweg
(ft)
Flow Velocity at
Mid-Depth
(ft/s)
Discharge Rate
(cfs)
Water Depth at
Thalweg
(ft)
Flow Velocity at
Mid-Depth
(ft/s)
Discharge Rate
(cfs)
Average Discharge
Rate2 (cfs)
Discharge Rate for
Load Gain
Estimate3 (cfs)
UP-SW-12
-4+45
30
2.3
0.35
23.75
2.2
0.40
25.77
24.76
24.76
UP-SW-11
-2+90
25
2.9
0.25
17.76
3.0
0.27
19.92
18.84
25.98
BR-SW-10
6+80
22
2.5
0.58
31.32
2.5
0.67
35.91
33.62
33.62
BR-SW-09
12+50
30
1.7
0.74
37.74
1.8
0.78
42.23
39.98
39.98
BR-SW-08
18+00
31
1.1
0.63
21.62
1.2
1.1
39.91
30.77
40.10
BR-SW-07
25+90
27
1.2
1.1
33.65
1.3
0.74
25.59
29.62
40.26
BR-SW-06
42+00
19
1.2
0.81
17.79
2.6
0.83
41.02
29.41
40.58
BR-SW-05
58+80
19
1.9
0.77
27.50
1.9
1.2
42.22
34.86
40.92
BR-SW-04
66+00
20
1.9
0.72
27.63
2.4
0.95
46.06
36.84
41.07
MR-SW-03
198+00
29
1.6
0.53
24.93
1.8
0.49
25.67
25.30
43.74
CL-SW-02
367+00
28
1.6
0.60
26.78
2.2
0.39
23.88
25.33
47.16
SR-SW-01
423+40
29
2.5
0.61
43.46
2.4
0.78
53.15
48.30
48.30
Notes:
1. Flows were calculated by multiplying channel width, water depth, and mid-depth velocity at each location.
2. Average discharge rates were estimated by averaging calculated flows based on Round 1 and 2 sampling events.
3. If the average discharge rate at a given sample location was less than the upstream sample location then the distance-weighated discharge rate was calculated for that particular sample location using the average rate for the sample
location immediately upstream and downstream sample location with an average discharge rate higher than that at the upstream location.
Acronyms and Abbreviations:
cfs = cubic feet per second
ft = feet
ft/s = feet per second
CT1 and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/1
-------
Table 4-7
Total PCB Load Gain Analysis
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Location ID
River
Station
Channel
Width (ft)
SP3™ S
ampling
Discharge Rate for
Load Gain
Estimate1 (cfs)
Total PCB
Concentrations2'3
(ng/L)
PCB Load
(mg/day)
PCB Load Gain
(mg/day-ft)
UP-SW-12
-4+45
30
24.76
0.079
4.8
--
UP-SW-11
-2+90
25
25.98
0.145
9.2
0.029
BR-SW-10
6+80
22
33.62
0.134
11
0.002
BR-SW-09
12+50
30
39.98
7.01
686
1.18
BR-SW-08
18+00
31
40.10
7.16
703
0.03
BR-SW-07
25+90
27
40.26
14.4
1417
0.90
BR-SW-06
42+00
19
40.58
23.5
2337
0.57
BR-SW-05
58+80
19
40.92
28.6
2865
0.31
BR-SW-04
66+00
20
41.07
30.1
3025
0.22
MR-SW-03
198+00
29
43.74
46.7
4996
0.15
CL-SW-02
367+00
28
47.16
41.1
4740
-0.015
SR-SW-01
423+40
29
48.30
40.6
4804
0.01
Notes:
1. Discharge rates were estimated using the average calculated flows based on Round 1 and 2 sampling events or the distance-weighted
average discharge rates calculated as described in Table 4-6.
2. Non-detects are not included in the total PCB congeners.
3. Parent and duplicate results were averaged.
Acronyms and Abbreviations:
cfs = cubic feet per second mg/day-ft = milligrams per day per foot
ft = feet ng/L = nanograms per liter
ft/s = feet per second PCB = polychlorinated biphenyl
mg/day = milligrams per day
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 5-1
2021 Shiawassee River Fish Community Survey - ISM-29, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Size (cm)
Fish Species
Northern Pike
Esox lucius
Rock Bass
Ambloplites rupestris
Bluegill
Lepomis macrochirus
Pumpkinseed
Lepomis gibbosus
Green Sunfish
Lepomis cyanellus
White Sucker
Catostomus commersonii
Northern Hogsucker
Hypentelium nigricans
Brown Bullhead
Ameiurus nebulosus
Tadpole Madtom
Noturus gyrinus
Round Goby
Neogobius melanostomus
Greenside Darter
Etheostoma blennioides
Blackside Darter
Percina Maculata
Common Shiner
Luxilus cornutus
Bluntnose Minnow
Pimephales notatus
Creek Chub
Semotilus atromaculatus
River Chub
Nocomis micropogon
Hornyhead Chub
Nocomis biguttatus
2.5-5.1
1
1
5.1-7.6
1
3
4
8
1
1
1
2
7.6-10.2
2
4
6
2
7
2
26
1
3
3
10.2-12.7
2
7
11
5
1
1
4
37
2
9
12.7-15.2
4
1
2
6
4
5
15.2-17.8
2
2
7
4
2
17.8-20.3
1
1
1
6
1
20.3-22.9
1
22.9-25.4
2
1
25.4-27.9
11
27.9-30.5
12
30.5-33.0
5
1
33.0-35.6
2
35.6-38.1
1
38.1-40.6
40.6-43.2
43.2-45.7
45.7-48.3
48.3-50.8
>50.8
2
2
Count 2
10
14
24
12
33
1
2
20
1
3
84
1
13
16
7
Total
245
Species
17
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/2
-------
Table 5-1
2021 Shiawassee River Fish Community Survey - ISM-29, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Reach Length:
800 ft
Coordinates:
Upstream42.618907, -83.965546
Downstream42.621035, -83.964826
Time Surveyed:
1600 fars
Backpack Electrofisher #1 2293 sec
Backpack Electrofisher #2 1996 sec
Notes:
cm = centimeters
ft = feet
fars = hours
sec = seconds
N. pike (> 50.8) = 50.8 cm, 55.9 cm
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
-------
Table 5-2
2021 Shiawassee River Fish Community Survey - ISM-M1-27, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Fish Species
Size (cm)
Rock Bass
Ambloplites rupestris
Pumpkinseed
Lepomis gibbosus
Green Sunfish
Lepomis cyanellus
White Sucker
Catostomus commersonii
Stonecat Madtom
Noturus flavus
Round Goby
Neogobius melanostomus
Johnny Darter
Etheostoma nigrum
Blackside Darter
Percina Maculata
Common Shiner
Luxilus cornutus
Creek Chub
Semotilus atromaculatus
River Chub
Nocomis micropogon
Hornyhead Chub
Nocomis biguttatus
Central Mudminnow
Umbra limi
2.5-5.1
1
2
2
1
4
1
5.1-7.6
2
14
1
6
1
1
7
18
9
7.6-10.2
5
9
6
26
19
12
1
1
10.2-12.7
13
3
4
18
12
8
1
12.7-15.2
1
5
3
3
5
4
4
15.2-17.8
2
1
1
1
6
2
1
3
17.8-20.3
2
7
1
20.3-22.9
3
1
22.9-25.4
1
25.4-27.9
2
27.9-30.5
2
30.5-33.0
2
33.0-35.6
2
35.6-38.1
38.1-40.6
40.6-43.2
43.2-45.7
45.7-48.3
48.3-50.8
>50.8
Count 5
27
32
12
2
18
1
1
68
62
41
9
1
Total
279
Species
13
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 5-2
2021 Shiawassee River Fish Community Survey - ISM-MI-27, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Reach Length:
800 ft
Coordinates:
Upstream42.625439, -83.965577
Downstream42.627578, -83.966057
Time Surveyed:
1300 hre
Backpack Electrofisher #1 1828 sec
Backpack Electrofisher #2 1894 sec
Notes:
cm = centimeters
ft = feet
hrs = hours
sec = seconds
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
-------
Table 5-3
2021 Shiawassee River Fish Community Survey - Bowen Road, May 18, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Fish Species
Size (cm)
Northern Pike
Esox lucius
Rock Bass
Ambloplites rupestris
Bluegill
Lepomis macrochirus
Pumpkinseed
Lepomis gibbosus
Green Sunfish
Lepomis cyanellus
White Sucker
Catostomus commersonii
Round Goby
Neogobius melanostomus
Johnny Darter
Etheostoma nigrum
Blackside Darter
Percina Maculata
Common Shiner
Luxilus cornutus
Bluntnose Minnow
Pimephales notatus
Creek Chub
Semotilus atromaculatus
River Chub
Nocomis micropogon
Hornyhead Chub
Nocomis biguttatus
Central Stoneroller
Campostoma anomalum
Central Mudminnow
Umbra limi
2.5-5.1
1
4
3
3
17
2
3
5.1-7.6
8
1
11
21
1
1
11
4
9
1
1
8
7.6-10.2
16
6
2
7
2
39
7
5
10.2-12.7
1
5
3
1
5
6
30
5
2
12.7-15.2
1
3
3
1
10
1
1
15.2-17.8
1
1
1
1
3
1
17.8-20.3
2
1
6
20.3-22.9
1
1
22.9-25.4
25.4-27.9
9
27.9-30.5
1
4
30.5-33.0
14
33.0-35.6
4
35.6-38.1
3
38.1-40.6
3
40.6-43.2
43.2-45.7
45.7-48.3
48.3-50.8
>50.8
3
Count 4
7
37
14
17
46
37
1
3
116
4
25
11
1
1
8
Total
332
Species
16
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 5-3
2021 Shiawassee River Fish Community Survey - Bowem Road, May 18, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Reach Length:
800 ft
Coordinates:
Upstream42.635464, -83.966704
Downstream42.637424, -83.968027
Time Surveyed:
1000 hrs
Backpack Electrofisher #1 2775 sec
Backpack Electrofisher #2 2738 sec
Notes:
cm = centimeters
ft = feet
hrs = hours
sec = seconds
N. pike (> 50.8) = 50.8 cm, 53.3 cm, 53.3 cm
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
-------
Table 5-4
2021 Shiawassee River Fish Community Survey - West Marr Road, May 18, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Size (cm)
Fish Species
Northern Pike
Esox lucius
Rock Bass
Ambloplites rupestris
Bluegill
Lepomis macrochirus
Pumpkinseed
Lepomis gibbosus
Green Sunfish
Lepomis cvanellus
White Sucker
Catostomus commersonii
Yellow Bullhead
Ameiurus natalis
Tadpole Madtom
Noturus gyrinus
Stonecat Madtom
Noturus flavus
Round Goby
Neogobius melanostomus
Greenside Darter
Etheosloma blennioides
Johnny Darter
Etheosloma nigrum
Blackside Darter
Percina Maculata
Common Shiner
Luxilus cornutus
Bluntnose Minnow
Pimephales notatus
Creek Chub
Semotilus atromaculatus
River Chub
Nocomis micropogon
Hornyhead Chub
Nocomis biguttatus
Central Mudminnow
Umbra limi
2.5-5.1
5
1
1
5.1-7.6
4
1
1
8
11
2
2
2
4
7.6-10.2
6
2
13
1
28
3
1
1
1
1
10.2-12.7
8
4
2
3
2
1
1
1
1
12.7-15.2
4
1
3
2
1
15.2-17.8
4
1
1
2
17.8-20.3
5
20.3-22.9
1
22.9-25.4
25.4-27.9
27.9-30.5
30.5-33.0
1
33.0-35.6
2
35.6-38.1
1
38.1-40.6
2
40.6-43.2
43.2-45.7
1
1
45.7-48.3
48.3-50.8
1
>50.8
2
Count 3
31
6
6
30
8
8
1
1
40
2
2
2
8
1
2
3
2
2
Total
158
Species
19
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/2
-------
Table 5-4
2021 Shiawassee River Fish Community Survey - West Marr Road, May 18, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Reach Length:
800 ft
Coordinates:
Upstream 42.666320, -83.974867
Downstream 42.668406, -83.975089
Time Surveyed:
1600 hrs
Backpack Electrofisher #1 2200 sec
Backpack Electrofisher #2 2004 sec
Notes:
cm = centimeters
ft = feet
hrs = hours
sec = seconds
N. pike (> 50.8) = 53.3 cm, 55.9 cm
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
-------
Table 5-5
2021 Shiawassee River Fish Community Survey - Chase Lake Road, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Fish Species
Size (cm)
Northern Pike
Esox lucius
Rock Bass
Ambloplites rupestris
Bluegill
Lepomis macrochirus
Pumpkinseed
Lepomis gibbosus
Green Sunfish
Lepomis cyanellus
White Sucker
Catostomus commersonii
Yellow Bullhead
Ameiurus natalis
Common Carp
Cyprinus carpio
Tadpole Madtom
Noturus gvrinus
Round Goby
Neogobius melanostomus
Johnny Darter
Etheostoma nigrum
Common Shiner
Luxilus cornutus
Spotfin Shiner
Cvprinella spiloptera
Bluntnose Minnow
Pimephales notatus
Fathead Minnow
Pimephales promelas
River Chub
Nocomis micropogon
Hornyhead Chub
Nocomis biguttatus
2.5-5.1
1
2
1
5.1-7.6
1
1
1
2
9
1
1
1
7.6-10.2
5
1
1
1
1
1
3
1
10.2-12.7
20
1
1
1
1
9
3
2
1
4
12.7-15.2
4
2
1
1
15.2-17.8
4
17.8-20.3
5
20.3-22.9
22.9-25.4
25.4-27.9
27.9-30.5
30.5-33.0
1
33.0-35.6
35.6-38.1
1
38.1-40.6
3
40.6-43.2
1
2
43.2-45.7
2
7
45.7-48.3
1
1
48.3-50.8
1
>50.8
4
9
Count 9
40
2
2
5
15
2
9
12
11
1
5
1
5
1
3
5
Total
128
Species
17
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/2
-------
Table 5-5
2021 Shiawassee River Fish Community Survey - Chase Lake Road, May 19, 2021
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Reach Length:
800 ft
Coordinates:
Upstream 42.708554, -83.980802
Downstream42.709377, -83.983556
Time Surveyed:
0930 hre
Backpack Electrofisher #1 2138 sec
Backpack Electrofisher #2 2247 sec
Notes:
cm = centimeters
ft = feet
fars = hours
sec = seconds
N. pike (> 50.8) = 50.8 cm, 66.0 cm, 68.6 cm, 78.7 cm
C. carp (> 50.8) = 50.8 to 76.2 cm range
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-01
BR-FF-02
BR-FF-03
BR-FF-04
BR-FF-05
BR-FF-06
BR-FF-07
BR-FF-08
BR-FF-09
BR-FF-10
Location:
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
<
Species:
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Pumpkinseed
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
20.4
19.7
18.3
16.1
16.1
15.9
30.9
37.7
37.2
33.3
Weight (g):
205
195
157.7
87
80.4
91.6
346.1
629.1
538.7
425.3
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352001
40227352002
40227352003
40227352004
40227352005
40227352006
40227352007
40227352008
40227352009
40227352010
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
2200
2600
1910
1650
2590
3930
8000
6540
4600
5400
PCB-2
2051-61-8
ng/kg
24.0
23.4
19.8 J
17.1 J
25.5
36.5
53.0
47.6
40.0
28.2
PCB-3
2051-62-9
ng/kg
550
595
470
385
625
962
968
913
704
609
PCB-4
13029-08-8
ng/kg
9940
11200
8250
8830
7210
9390
37500
29900
23600
26300
PCB-5
116605-91-7
ng/kg
2.91 U
13.7 J
8.19.T
10.1 J
16.8 J
18.2 J
81.4
66.4
48.6
45.2
PCB-6
25569-80-6
ng/kg
1450
1930
1470
1700
2310
2720
6040
5200
3910
3980
PCB-7
33284-50-3
ng/kg
145
222
140
121
625
541
1240
1180
666
809
PCB-8
34883-43-7
ng/kg
5400
7230
5140
6290
12500
12800
27000
23400
17600
16900
PCB-9
34883-39-1
ng/kg
169
272
191
187
326
379
876
861
608
621
PCB-10
J 33146-45-1
ng/kg
358
452
314
324
282
398
1460
1230
914
1060
PCB-11
J 2050-67-1
ng/kg
94.0 U
91.2 U
104 J
96.3 U
96.0 U
93.1 U
101 J
96.8 J
109 J
108 J
PCB-12/13
112-13
ng/kg
150
158
120
118
216
235
389
341
254
266
PCB-14
34883-41-5
ng/kg
3.16 U
3.07 U
3.23 U
3.24 U
3.23 U
3.13 U
3.11 U
3.18 U
3.27 U
3.24 U
PCB-15
2050-68-2
ng/kg
2680
3380
1950
1390
1550
2410
5680
4430
4770
3590
PCB-16
38444-78-9
ng/kg
283
436
264
324
253
263
1600
1220
1320
1110
PCB-17
37680-66-3
ng/kg
6320
10800
4430
7640
8000
4500
36800
28500
23800
26100
PCB-18/30
118-30
ng/kg
1920
2830
1430
2630
1440
1410
6580
4760
3830
4380
PCB-19
38444-73-4
ng/kg
2350
2720
1890
2400
819
914
13300
9880
9710
9250
PCB-20/28
20-28
ng/kg
23300
39300
24300
36500
27900
45500
95800
86000
122000
97900
PCB-21/33
J21-33
ng/kg
153
317
144
212
331
291
1200
1030
997
1180
PCB-22
38444-85-8
ng/kg
2470
4400
2780
4720
4690
5450
11300
10500
14500
8450
PCB-23
55720-44-0
ng/kg
6.49 J
22.6 J
7.39 J
13.2 J
22.1 J
24.1
53.8
38.2
32.0
38.2
PCB-24
H 55702-45-9
ng/kg
35.9
71.6
37.4
39.7
31.6
30.0
214
188
161
141
PCB-25
J 55712-37-3
ng/kg
3240
5700
2670
6440
5550
8040
13100
12200
12300
8510
PCB-26/29
26-29
ng/kg
4250
7900
3260
8050
4990
8810
13000
12600
13100
12000
PCB-27
38444-76-7
ng/kg
1390
2370
1040
1830
1660
1680
7190
5300
4550
5160
PCB-31
16606-02-3
ng/kg
4150
7240
4090
7820
14100
21000
38900
41400
50400
29000
PCB-32
38444-77-8
ng/kg
6780
10500
4610
8940
9080
10200
34600
27600
34700
28200
PCB-34
37680-68-5
ng/kg
338
676
267
555
211
337
1060
753
927
918
PCB-35
37680-69-6
ng/kg
3.09 U
3.00 U
3.15 U
3.16 U
3.15 U
3.06 U
4.40 J
4.56 J
3.23 J
3.74 UX
PCB-36
38444-87-0
ng/kg
2.31 U
2.24 U
2.36 U
2.37 U
2.36 U
2.29 U
2.27 U
2.32 U
2.39 U
2.37 U
PCB-37
38444-90-5
ng/kg
494
867
798
653
449
717
1290
1070
1800
884
PCB-38
J 53555-66-1
ng/kg
18.3 J
27.9
17.2 J
31.9
9.35 J
23.2 J
50.3
41.4
70.7
48.5
PCB-39
38444-88-1
ng/kg
12.5 J
41.4
27.1
8.87 UX
65.0
41.3
119
84.9
142
161
PCB-40/41/71
J 40-41-71
ng/kg
5730
10200
5360
9690
6470
8830
29400
25600
33000
35200
PCB-42
36559-22-5
ng/kg
6160
8780
6390
9410
5110
6170
27400
23300
36400
32700
PCB-43/73
H43-73
ng/kg
558
1210
582
1120
601
1040
2740
1480
1360
1550
PCB-44/47/65
J 44-57-65
ng/kg
34100
50300
40800
47000
22600
44700
118000
97500
147000
148000
PCB-45/51
J45-51
ng/kg
1830
2900
1570
2770
1350
1240
11300
7550
11100
10900
PCB-46
H 41464-47-5
ng/kg
146
235
133
201
108
113
1560
1130
1630
1560
PCB-48
70362-47-9
ng/kg
1160
1860
1140
1830
1610
1420
7230
5120
6180
8200
PCB-49/69
49-69
ng/kg
25600
42000
27600
39100
19200
36400
88700
77000
129000
110000
PCB-50/53
J 50-53
ng/kg
1830
3270
1610
3040
1350
1460
8510
5580
7100
7360
PCB-52
35693-99-3
ng/kg
27900
48900
28600
44700
18800
33700
92700
63100
41400
58800
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-01
BR-FF-02
BR-FF-03
BR-FF-04
BR-FF-05
BR-FF-06
BR-FF-07
BR-FF-08
BR-FF-09
BR-FF-10
Location:
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
<
Species:
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Pumpkinseed
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
20.4
19.7
18.3
16.1
16.1
15.9
30.9
37.7
37.2
33.3
Weight (g):
205
195
157.7
87
80.4
91.6
346.1
629.1
538.7
425.3
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352001
40227352002
40227352003
40227352004
40227352005
40227352006
40227352007
40227352008
40227352009
40227352010
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
26.4 J
29.7 J
24.4 J
27.1 J
19.0 J
20.5 J
246
184
189
212
PCB-55
74338-24-2
ng/kg
137
227
304
295
278
398
906
779
790
794
PCB-56
41464-43-1
ng/kg
4720
6980
6810
8300
5170
7530
19300
19400
26100
21100
PCB-57
70424-67-8
ng/kg
312
507
393
549
301
584
1080
1090
1360
1220
PCB-58
41464-49-7
ng/kg
168
235
191
226
99.5
195
537
488
679
677
PCB-59/62/75
59-62-75
ng/kg
3420
5270
3840
4980
2420
4360
11100
8580
14200
13000
PCB-60
33025-41-1
ng/kg
5620
7850
10200
8650
5120
10600
16900
16900
24700
24800
PCB-61/70/74/76
61-70-74-76
ng/kg
23900
35800
44000
39200
26700
54000
111000
115000
164000
160000
PCB-63
74472-34-7
ng/kg
2720
4150
4000
4120
2050
3990
9870
10200
13500
14300
PCB-64
52663-58-8
ng/kg
12600
18900
13500
22800
11300
13100
47000
43300
77000
58500
PCB-66
32598-10-0
ng/kg
26000
36800
50900
37200
20200
51600
79700
77800
122000
119000
PCB-67
73575-53-8
ng/kg
713
953
1040
1110
785
1450
1610
1560
1600
1240
PCB-68
73575-52-7
ng/kg
614
964
760
774
375
864
2000
1840
2570
2920
PCB-72
41464-42-0
ng/kg
799
1220
829
1130
584
1410
2230
1800
2840
3390
PCB-77
32598-13-3
ng/kg
1190
1860
2280
1930
1110
2110
3140
2640
3880
3230
PCB-78
70362-49-1
ng/kg
2.48 U
2.41 U
2.54 U
2.54 U
2.54 U
2.46 U
2.44 U
2.50 U
2.56 U
2.54 U
PCB-79
41464-48-6
ng/kg
119
164
170
162
109
160
477
519
646
729
PCB-80
33284-52-5
ng/kg
2.08 U
2.02 U
2.13 U
2.13 U
2.13 U
2.06 U
2.04 U
2.09 U
2.15 U
2.13 U
PCB-81
70362-50-4
ng/kg
110
139
209
138
65.9
118
290
297
384
428
PCB-82
52663-62-4
ng/kg
1400
2080
2040
2170
1080
1090
5710
6720
7680
9380
PCB-83
60145-20-2
ng/kg
1130
1670
1380
1630
317
439
3000
2950
3220
4220
PCB-84
52663-60-2
ng/kg
2190
3180
2570
3540
811
849
6410
4580
7150
7540
PCB-85/116/117
85-116-117
ng/kg
5580
7940
8770
7360
3880
7990
15800
20600
23500
26400
PCB-86/87/97/108/119/125
868797108119125
ng/kg
9210
13200
13700
12100
6040
12500
30700
32600
43000
50100
PCB-88/91
88-91
ng/kg
3310
5050
4310
5190
1660
3050
11100
9690
15000
15800
PCB-89
73575-57-2
ng/kg
20.6 J
43.4 J
29.9 J
43.3 J
98.9
82.7
684
596
896
972
PCB-90/101/113
90-101-113
ng/kg
14200
22100
20500
19000
8640
20000
45300
44600
53100
64900
PCB-92
52663-61-3
ng/kg
3360
5020
4350
4630
1990
5070
9130
7910
9740
11100
PCB-93/98/100/102
9398100102
ng/kg
795
1340
1000
1330
791
1180
3720
2910
3880
4840
PCB-94
73575-55-0
ng/kg
45.9 J
98.1
49.7
92.9
68.2
69.5
421
250
262
399
PCB-95
38379-99-6
ng/kg
8170
12500
9670
12600
3320
7600
19100
12000
18900
19800
PCB-96
73575-54-9
ng/kg
45.8 J
93.5
49.1
75.3
27.9 J
26.7 J
366
229
423
407
PCB-99
38380-01-7
ng/kg
11800
18200
20600
15600
7770
17300
37100
44900
50900
57700
PCB-103
60145-21-3
ng/kg
235
375
302
324
124
296
566
452
656
738
PCB-104
56558-16-8
ng/kg
1.11 U
1.08 U
1.14 U
1.14 U
2.77 J
1.77 UX
8.72 J
5.41 J
8.16 J
10.2 J
PCB-105
32598-14-4
ng/kg
6350
8820
11700
8700
4630
9550
15700
15800
23400
28000
PCB-106
70424-69-0
ng/kg
2.19 U
18.8 J
20.1 J
34.9 J
28.4 J
51.6
60.4
68.3
76.5
78.5
PCB-107/124
107-124
ng/kg
249
420
372
390
325
695
1190
1260
1420
1610
PCB-109
74472-35-8
ng/kg
1370
1870
2170
2070
1030
1890
3830
5350
5760
6940
PCB-110/115
110-115
ng/kg
14700
22200
19600
23000
10200
17200
40400
36400
60000
66400
PCB-111
39635-32-0
ng/kg
16.5 J
28.1 J
27.9 J
29.6 J
11.4 J
21.7 J
55.0
71.1
74.2
89.6
PCB-112
74472-36-9
ng/kg
156
209
2.72 U
129
144
210
601
336
532
436
PCB-114
74472-37-0
ng/kg
681
951
1230
899
426
842
1760
2500
2630
3340
PCB-118
31508-00-6
ng/kg
14800
21700
27500
19800
10100
19200
42600
54900
60500
73200
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
2/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-01
BR-FF-02
BR-FF-03
BR-FF-04
BR-FF-05
BR-FF-06
BR-FF-07
BR-FF-08
BR-FF-09
BR-FF-10
Location:
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
<
Species:
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Pumpkinseed
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
20.4
19.7
18.3
16.1
16.1
15.9
30.9
37.7
37.2
33.3
Weight (g):
205
195
157.7
87
80.4
91.6
346.1
629.1
538.7
425.3
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352001
40227352002
40227352003
40227352004
40227352005
40227352006
40227352007
40227352008
40227352009
40227352010
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
82.5
125
132
101
55.7
102
266
356
339
424
PCB-121
56558-18-0
ng/kg
6.15.T
10.7 J
8.21 J
7.54 J
3.36 UX
9.14 J
18.4 J
20.8 J
21.8 J
28.0 J
PCB-122
76842-07-4
ng/kg
141
230
247
187
143
269
438
563
662
673
PCB-123
65510-44-3
ng/kg
424
613
819
598
310
700
1240
1270
1660
2190
PCB-126
57465-28-8
ng/kg
41.5 J
55.5
71.6
52.6
22.8 J
47.0 J
66.6
67.8
109
109
PCB-127
39635-33-1
ng/kg
12.9 J
16.6 J
19.6 J
15.1 J
6.37 J
11.5 J
29.5 J
46.3 J
42.8 J
59.0
PCB-128/166
128-166
ng/kg
716
951
1150
906
502
853
1810
2890
2910
3570
PCB-129/138/163
129-138-163
ng/kg
4830
6850
7750
6260
3680
6420
14400
23100
22600
27200
PCB-130
52663-66-8
ng/kg
404
588
610
551
275
451
966
1550
1420
1930
PCB-131
61798-70-7
ng/kg
52.7
57.0
84.2
61.0
35.9 J
24.2 J
151
169
198
261
PCB-132
38380-05-1
ng/kg
1090
1500
1620
1610
524
1040
2980
2740
4030
5050
PCB-133
35694-04-3
ng/kg
130
183
189
206
85.7
159
311
433
433
575
PCB-134/143
^134-143
ng/kg
262
370
363
337
143
260
568
554
632
893
PCB-135/151
^135-151
ng/kg
1270
1800
1630
1680
709
1730
2530
2250
3020
3720
PCB-136
38411-22-2
ng/kg
337
476
437
469
175
244
665
466
747
874
PCB-137
35694-06-5
ng/kg
361
529
669
444
200
358
922
1420
1240
1880
PCB-139/140
^139-140
ng/kg
133
182
204
179
91.1 J
171
337
549
540
685
PCB-141
52712-04-6
ng/kg
720
1050
1040
951
425
877
1720
1790
1880
3060
PCB-142
41411-61-4
ng/kg
2.37 U
2.30 U
2.42 U
2.43 U
2.42 U
2.35 U
8.98 J
5.09 UX
5.23 J
5.70 J
PCB-144
68194-14-9
ng/kg
180
265
263
235
90.2
222
429
483
533
743
PCB-145
74472-40-5
ng/kg
2.96 U
2.87 U
3.03 U
3.04 U
3.03 U
2.93 U
9.40 J
7.46 J
11.3 J
13.2 J
PCB-146
51908-16-8
ng/kg
1040
1430
1500
1420
738
1370
2510
3850
3520
4730
PCB-147/149
^147-149
ng/kg
3800
5020
4880
4860
2360
4240
7600
7120
9040
13000
PCB-148
74472-41-6
ng/kg
12.3 J
18.8 J
19.6 J
16.8 J
7.97 J
20.8 J
36.3 J
40.3 J
44.9 J
60.2
PCB-150
68194-08-1
ng/kg
7.91 J
13.1 J
11.8 J
12.6 J
4.46 J
3.85 J
19.8 J
14.1 UX
23.5 J
30.9 J
PCB-152
68194-09-2
ng/kg
5.00 J
7.76 J
6.82 J
9.03 J
3.79 J
7.43 J
18.8 J
13.6 J
23.1 J
24.5 J
PCB-153/168
153-168
ng/kg
4060
5890
6340
5530
2890
4960
10900
17600
16000
21400
PCB-154
60145-22-4
ng/kg
100
152
149
126
58.8
135
257
279
309
440
PCB-155
33979-03-2
ng/kg
1.61 U
1.73 J
1.65 U
1.65 U
1.65 U
1.60 U
3.65 UX
4.32 J
3.93 UX
5.44 J
PCB-156/157
^156-157
ng/kg
690
953
1130
970
446
774
1650
2410
2370
3210
PCB-158
74472-42-7
ng/kg
353
503
563
439
252
409
1160
2110
1880
2310
PCB-159
39635-35-3
ng/kg
13.4 J
4.89 J
3.06 J
4.89 J
6.90 J
12.3 J
24.1 J
15.8 J
20.1 J
44.6 J
PCB-160
41411-62-5
ng/kg
2.01 U
1.95 U
2.06 U
2.06 U
2.06 U
1.99 U
1.98 U
12.0 UX
15.6 J
2.06 U
PCB-161
74472-43-8
ng/kg
2.97 U
2.88 U
3.04 U
3.05 U
3.04 U
2.94 U
2.92 U
2.99 U
3.07 U
4.42 UX
PCB-162
39635-34-2
ng/kg
25.0 J
33.2 J
34.2 J
37.0 J
17.7 J
29.3 J
68.2
103
85.0
124
PCB-164
74472-45-0
ng/kg
275
366
351
329
170
377
527
437
641
929
PCB-165
74472-46-1
ng/kg
5.47 UX
9.43 J
9.63 J
11.4 J
4.59 J
9.92 J
15.7 J
24.4 J
26.2 J
31.3 J
PCB-167
52663-72-6
ng/kg
250
353
390
300
166
292
651
1100
951
1250
PCB-169
32774-16-6
ng/kg
3.90 U
4.77 UX
3.99 U
4.00 U
3.99 U
3.87 U
3.83 U
5.84 UX
7.63 UX
5.06 UX
PCB-170
35065-30-6
ng/kg
584
784
818
778
409
629
1510
2690
2320
2920
PCB-171/173
^Tl71-173
ng/kg
154
225
222
196
118
190
435
840
702
832
PCB-172
52663-74-8
ng/kg
140
221
211
222
104
161
352
642
514
713
PCB-174
38411-25-5
ng/kg
392
570
538
468
193
374
805
745
743
1500
PCB-175
40186-70-7
ng/kg
22.7 J
35.0 J
34.8 J
32.3 J
17.8 J
26.6 J
78.4
135
109
143
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
3/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-01
BR-FF-02
BR-FF-03
BR-FF-04
BR-FF-05
BR-FF-06
BR-FF-07
BR-FF-08
BR-FF-09
BR-FF-10
Location:
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
BR-FF
<
Species:
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Pumpkinseed
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
20.4
19.7
18.3
16.1
16.1
15.9
30.9
37.7
37.2
33.3
Weight (g):
205
195
157.7
87
80.4
91.6
346.1
629.1
538.7
425.3
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352001
40227352002
40227352003
40227352004
40227352005
40227352006
40227352007
40227352008
40227352009
40227352010
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
63.2
95.6
90.2
78.6
32.5 J
49.6
128
140
169
230
PCB-177
52663-70-4
ng/kg
362
545
530
470
261
407
892
1820
1420
1770
PCB-178
52663-67-9
ng/kg
141
217
204
182
104
178
387
622
564
755
PCB-179
52663-64-6
ng/kg
164
233
208
219
116
222
303
271
425
484
PCB-180/193
180-193
ng/kg
1400
2060
1940
1730
958
1480
3710
7140
5740
7770
PCB-181
74472-47-2
ng/kg
9.00 J
14.0 J
13.5 J
11.9 J
5.98 J
7.82 UX
22.9 J
40.1 J
32.3 J
43.6 J
PCB-182
60145-23-5
ng/kg
7.15.T
10.5 J
7.38 J
7.55 UX
4.19 J
6.83 J
17.2 J
24.2 J
22.4 J
32.1 J
PCB-183/185
183-185
ng/kg
398
572
578
509
276
449
1200
2090
1730
2330
PCB-184
74472-48-3
ng/kg
2.11 UX
3.19 J
1.80 U
2.58 J
1.80 U
1.78 UX
4.99 J
7.61 J
5.77 J
8.33 UX
PCB-186
74472-49-4
ng/kg
1.53 U
1.49 U
1.57 U
1.57 U
1.57 U
1.52 U
1.51 U
1.54 U
1.58 U
1.57 U
PCB-187
52663-68-0
ng/kg
1440
1940
1990
1760
1300
2600
2570
4600
4270
5000
PCB-188
74487-85-7
ng/kg
1.86 U
2.57 UX
2.77 J
3.02 UX
1.90 U
2.03 UX
4.58 J
6.29 J
6.46 J
8.02 J
PCB-189
39635-31-9
ng/kg
29.4 J
46.4 J
43.7 J
45.8 J
19.5 J
31.9 J
75.8
141
106
149
PCB-190
41411-64-7
ng/kg
61.1
83.9
84.1
85.3
36.0 J
53.6
194
375
293
388
PCB-191
74472-50-7
ng/kg
26.8 J
38.3 J
39.3 J
32.7 J
17.3 J
26.9 J
67.2
126
99.9
139
PCB-192
74472-51-8
ng/kg
2.62 U
2.54 U
2.67 U
2.68 U
2.67 U
2.59 U
2.57 U
2.63 U
2.70 U
2.68 U
PCB-194
35694-08-7
ng/kg
293
467
394
478
240
313
667
1530
1050
1480
PCB-195
52663-78-2
ng/kg
93.8
147
137
139
74.1
107
241
565
411
507
PCB-196
42740-50-1
ng/kg
127
185
173
174
99.6
126
334
792
556
728
PCB-197/200
197-200
ng/kg
31.0 J
50.9 J
45.0 J
46.9 J
21.9 J
35.4 J
74.2 J
104 J
96.3 J
149
PCB-198/199
198-199
ng/kg
415
631
544
596
354
540
921
1930
1440
1880
PCB-201
40186-71-8
ng/kg
39.6 J
57.7 J
52.6 J
55.2 J
32.6 J
44.2 J
85.1
164
131
179
PCB-202
2136-99-4
ng/kg
94.6
134
120
129
78.4
119
169
285
266
355
PCB-203
52663-76-0
ng/kg
232
341
314
337
185
255
625
1240
954
1290
PCB-204
74472-52-9
ng/kg
1.80 U
1.75 U
1.84 U
1.85 U
1.84 U
1.79 U
1.77 U
3.04 J
2.01 J
1.84 U
PCB-205
74472-53-0
ng/kg
15.8 J
24.7 J
22.4 J
20.6 UX
12.5 J
17.6 J
37.1 J
90.2
61.6 J
82.8
PCB-206
40186-72-9
ng/kg
153
217
209
264
160
184
330
1050
603
796
PCB-207
52663-79-3
ng/kg
19.4 J
26.9 J
26.3 J
28.9 J
17.5 J
20.9 J
35.1 J
79.1
58.0 J
82.1
PCB-208
52663-77-1
ng/kg
46.7 J
64.8 J
63.7 J
79.5
54.8 J
60.9 J
86.3
205
157
203
PCB-209
ARC-209
ng/kg
58.3 J
72.3
83.4
106
69.9 J
75.0
80.8
246
160
229
Total PCB Congeners
--
ng/kg
397413.3 J
605827.1 J
519759.05 J
579183.74 J
345250.87 J
593187.87 J
1427534.47 J
1341361.99 J
1718683.66 J
1722057.86 J
Lipid Content
ARC-LIPID
%
0.30
0.34
0.32
0.31
0.39
0.72
0.99
0.76
0.46
0.99
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
4/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-11
CL-FF-23
CL-FF-24
CL-FF-25
CL-FF-26
CL-FF-27
CL-FF-28
CL-FF-29
CL-FF-30
CL-FF-31
Location:
BR-FF
CL-FF
CI^FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
<
Species:
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
White Sucker
White Sucker
White Sucker
Length (cm):
39.1
18.0
18.3
19.7
17.5
18.7
19
40
37.1
39.6
Weight (g):
681.1
134.6
139.8
196.7
120.1
144.1
158.5
737
588.9
781.8
Sample Date:
5/18/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227352011
40227353003
40227353004
40227353005
40227353006
40227353007
40227353008
40227353009
40227353010
40227353011
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
5320
695
879
793
528
612
508
1400
2310
1730
PCB-2
2051-61-8
ng/kg
28.0
13.2 J
15.7 J
15.0 J
10.8 J
10.2 J
9.63 J
13.5 J
15.2 J
13.9 J
PCB-3
2051-62-9
ng/kg
504
239
259
246
169
200
161
249
247
231
PCB-4
13029-08-8
ng/kg
22300
4340
5680
5330
3640
3610
3240
8760
12800
10700
PCB-5
116605-91-7
ng/kg
45.5 UX
6.67 J
8.66 UX
10.7 UX
4.44 J
10.3 UX
6.27 UX
24.3
32.1
30.9 UX
PCB-6
25569-80-6
ng/kg
4190
872
1350
1220
907
1010
922
1990
2280
2250
PCB-7
33284-50-3
ng/kg
782
93.3
149
114
74.5
102
73.5 UX
321
434
423
PCB-8
34883-43-7
ng/kg
17600
2870
4420
3810
2830
2910
2660
5640
7050
6710
PCB-9
34883-39-1
ng/kg
622
144
202
181
127
140
124
291
392
364
PCB-10
J 33146-45-1
ng/kg
923
142
214
180
125
140
122
341
495
353
PCB-11
J 2050-67-1
ng/kg
105 J
92.1 U
91.8 U
93.9 U
97.3 U
95.8 U
95.8 J
95.1 U
95.2 U
92.0 U
PCB-12/13
112-13
ng/kg
246
113
104
109
76.3
89.7
70.8 UX
112
94.6
99.5
PCB-14
34883-41-5
ng/kg
3.13 U
3.10 U
3.09 U
3.16 U
3.28 U
3.23 U
3.20 U
3.20 U
3.21 U
3.10 U
PCB-15
2050-68-2
ng/kg
2330
2000
1570
2160
1310
1490
1410
2160
2060
1820
PCB-16
38444-78-9
ng/kg
1100
245
371
345
245
293
264
582
851
746
PCB-17
37680-66-3
ng/kg
27400
3540
5970
5310
3540
4230
3740
7660
9750
9220
PCB-18/30
118-30
ng/kg
2220
1470
2490
2130
1600
2300
2330
2250
4250
3220
PCB-19
38444-73-4
ng/kg
7300
1320
1880
1810
1270
1400
1130
2990
4060
3670
PCB-20/28
20-28
ng/kg
94000
19700
30300
23700
16600
18400
22500
22400
28900
31600
PCB-21/33
J21-33
ng/kg
1140
214
367
268
210
233
231
480
622
648
PCB-22
38444-85-8
ng/kg
11000
2760
4260
3300
2480
2490
3000
3230
4460
4420
PCB-23
55720-44-0
ng/kg
46.5
9.28 J
14.9 J
10.0 J
8.19 J
8.59 J
10.2 J
12.7 J
17.8 J
23.8
PCB-24
H 55702-45-9
ng/kg
172
28.1
54.1
41.5
29.1
31.9
32.8
69.2
85.1
75.7
PCB-25
J 55712-37-3
ng/kg
8430
2910
4880
3410
2570
2840
2990
3210
4250
4130
PCB-26/29
26-29
ng/kg
9350
4350
6910
4930
3790
3950
4500
3720
4870
4720
PCB-27
38444-76-7
ng/kg
4490
773
1270
1270
860
911
807
1710
2290
2020
PCB-31
16606-02-3
ng/kg
32400
4820
8340
6270
4630
4410
4870
11000
14000
13100
PCB-32
38444-77-8
ng/kg
31700
3050
5240
4740
3460
3550
3610
5730
7970
7560
PCB-34
37680-68-5
ng/kg
976
247
436
317
246
289
305
306
352
397
PCB-35
37680-69-6
ng/kg
3.06 U
3.03 U
3.02 U
3.08 U
3.20 U
3.15 U
3.12 U
3.13 U
3.13 U
3.02 U
PCB-36
38444-87-0
ng/kg
2.29 U
2.27 U
2.26 U
2.31 U
2.39 U
2.36 U
2.34 U
2.34 U
2.34 U
2.26 U
PCB-37
38444-90-5
ng/kg
420
632
732
789
529
667
838
911
1070
778
PCB-38
J 53555-66-1
ng/kg
52.3
18.6 J
26.1
18.2 J
20.5 J
13.0 J
29.9
2.65 U
16.0 J
21.0 J
PCB-39
38444-88-1
ng/kg
66.2
11.3 J
15.2 J
16.3 J
12.7 J
19.6 J
15.9 J
42.9 UX
31.6
16.3 UX
PCB-40/41/71
J 40-41-71
ng/kg
27900
4710
9390
7810
5060
5250
5890
8480
10900
12100
PCB-42
36559-22-5
ng/kg
29200
5900
9690
8380
5480
6070
8350
6410
8760
9810
PCB-43/73
H43-73
ng/kg
1650
584
1100
781
620
545
648
551
817
860
PCB-44/47/65
J 44-57-65
ng/kg
118000
23900
41200
38800
24800
29300
37700
22600
28900
33200
PCB-45/51
J45-51
ng/kg
9200
1500
2500
1900
1340
1510
1680
2400
3030
3080
PCB-46
H 41464-47-5
ng/kg
1390
124
200
183
133
128
108
429
601
618
PCB-48
70362-47-9
ng/kg
4210
1010
1700
1500
943
1120
1230
1260
1820
2000
PCB-49/69
49-69
ng/kg
93200
22900
39100
34800
22300
28700
37200
21600
27100
31000
PCB-50/53
J 50-53
ng/kg
6220
1630
2670
2050
1440
1740
1700
1990
2670
2890
PCB-52
35693-99-3
ng/kg
9410
27300
44100
38900
25800
33400
43800
8880
28400
18700
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
5/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-11
CL-FF-23
CL-FF-24
CL-FF-25
CL-FF-26
CL-FF-27
CL-FF-28
CL-FF-29
CL-FF-30
CL-FF-31
Location:
BR-FF
CL-FF
CI^FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
<
Species:
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
White Sucker
White Sucker
White Sucker
Length (cm):
39.1
18.0
18.3
19.7
17.5
18.7
19
40
37.1
39.6
Weight (g):
681.1
134.6
139.8
196.7
120.1
144.1
158.5
737
588.9
781.8
Sample Date:
5/18/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227352011
40227353003
40227353004
40227353005
40227353006
40227353007
40227353008
40227353009
40227353010
40227353011
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
157
19.3 J
27.7 J
27.1 J
15.9 J
19.9 J
14.6 J
60.7
75.5
67.6
PCB-55
74338-24-2
ng/kg
628
137
245
180
116
129
147
202
207
245
PCB-56
41464-43-1
ng/kg
22000
4760
7640
6970
4250
6160
6620
5290
6680
6640
PCB-57
70424-67-8
ng/kg
992
298
561
439
308
466
475
280
308
349
PCB-58
41464-49-7
ng/kg
511
138
240
233
133
212
237
140
167
183
PCB-59/62/75
59-62-75
ng/kg
10500
3080
5070
4330
3150
3660
4690
2570
3450
3850
PCB-60
33025-41-1
ng/kg
20100
4690
7850
7870
5110
6370
7440
4380
5140
5660
PCB-61/70/74/76
61-70-74-76
ng/kg
127000
20400
36100
34700
21500
28400
31700
27600
32100
37500
PCB-63
74472-34-7
ng/kg
10900
2510
4060
4280
2550
3610
4000
2440
2800
3520
PCB-64
52663-58-8
ng/kg
52800
14700
24000
20500
14300
15800
22100
14600
18100
20100
PCB-66
32598-10-0
ng/kg
96000
20700
38000
39400
24700
34800
37600
20500
25600
30900
PCB-67
73575-53-8
ng/kg
1150
587
979
842
527
859
785
402
447
412
PCB-68
73575-52-7
ng/kg
2090
477
799
869
520
695
761
475
538
689
PCB-72
41464-42-0
ng/kg
2050
603
1110
1020
661
972
1050
655
710
893
PCB-77
32598-13-3
ng/kg
2490
1010
1690
1380
968
1520
1630
938
1180
1020
PCB-78
70362-49-1
ng/kg
2.46 U
2.43 U
2.43 U
2.48 U
2.57 U
2.53 U
2.51 U
2.51 U
2.52 U
2.43 U
PCB-79
41464-48-6
ng/kg
662
115
154
224
126
241
229
164
182
213
PCB-80
33284-52-5
ng/kg
2.06 U
2.04 U
2.03 U
2.08 U
2.15 U
2.12 U
2.10 U
2.11 U
2.11 U
2.04 U
PCB-81
70362-50-4
ng/kg
322
81.5
132
149
83.1
152
143
89.8
110
112
PCB-82
52663-62-4
ng/kg
7250
1590
2600
3050
1860
2500
2640
1750
2300
2410
PCB-83
60145-20-2
ng/kg
3500
1110
1800
2250
1210
1830
1900
1030
1170
1260
PCB-84
52663-60-2
ng/kg
6600
2190
3430
3580
2270
3000
3600
1850
2730
2790
PCB-85/116/117
85-116-117
ng/kg
20100
4750
8480
10800
6540
10100
9530
4920
5940
6590
PCB-86/87/97/108/119/125
868797108119125
ng/kg
38300
8710
14100
17700
10100
17300
17600
9050
11800
12200
PCB-88/91
88-91
ng/kg
12200
3230
5510
6310
4030
5760
6150
2810
3900
4310
PCB-89
73575-57-2
ng/kg
810
18.9 J
38.5 J
33.6 J
29.2 J
20.7 J
18.9 J
190
297
328
PCB-90/101/113
90-101-113
ng/kg
36400
12600
21700
26400
15800
28000
25400
9610
14700
15900
PCB-92
52663-61-3
ng/kg
5080
3050
5280
6300
3900
6480
6170
1990
3450
3470
PCB-93/98/100/102
9398100102
ng/kg
3720
769
1310
1270
861
1060
1190
961
1340
1480
PCB-94
73575-55-0
ng/kg
404
46.6 J
69.4
67.5
49.6 J
52.7
48.4 J
101
159
168
PCB-95
38379-99-6
ng/kg
11300
7000
11300
12500
8160
12400
13000
3790
6930
6720
PCB-96
73575-54-9
ng/kg
334
50.5
90.7
70.9
41.2 J
48.7 J
52.9
88.7
140
140
PCB-99
38380-01-7
ng/kg
45400
10200
17400
22700
13300
22400
20400
9610
12000
13700
PCB-103
60145-21-3
ng/kg
543
188
358
382
252
410
386
129
200
220
PCB-104
56558-16-8
ng/kg
9.52 J
1.09 U
1.09 U
1.11 U
1.15 U
1.67 J
1.13 U
1.13 U
1.13 U
3.22 J
PCB-105
32598-14-4
ng/kg
18800
5420
10200
13500
7620
12800
11400
5540
6360
6900
PCB-106
70424-69-0
ng/kg
75.9
2.14 U
2.14 U
2.18 U
2.26 U
2.23 U
2.21 U
2.21 U
2.22 U
2.14 U
PCB-107/124
107-124
ng/kg
1370
236
452
443
250
397
370
332
407
400
PCB-109
74472-35-8
ng/kg
5260
1440
2520
3270
1870
2630
2240
1110
1280
1750
PCB-110/115
110-115
ng/kg
45500
16300
26000
31700
19900
29000
31000
14200
18900
19300
PCB-111
39635-32-0
ng/kg
62.5
19.2 J
27.8 J
39.9 J
24.9 J
45.0 J
33.3 J
19.0 J
21.4 J
25.8 J
PCB-112
74472-36-9
ng/kg
318
119
508
465
166
248
233
138
159
142
PCB-114
74472-37-0
ng/kg
2470
524
914
1260
689
1070
1060
556
599
771
PCB-118
31508-00-6
ng/kg
55400
12900
23600
31200
17700
30500
26700
13600
15900
19900
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
6/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-11
CL-FF-23
CL-FF-24
CL-FF-25
CL-FF-26
CL-FF-27
CL-FF-28
CL-FF-29
CL-FF-30
CL-FF-31
Location:
BR-FF
CL-FF
CI^FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
<
Species:
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
White Sucker
White Sucker
White Sucker
Length (cm):
39.1
18.0
18.3
19.7
17.5
18.7
19
40
37.1
39.6
Weight (g):
681.1
134.6
139.8
196.7
120.1
144.1
158.5
737
588.9
781.8
Sample Date:
5/18/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227352011
40227353003
40227353004
40227353005
40227353006
40227353007
40227353008
40227353009
40227353010
40227353011
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
307
71.9
122
156
97.0
169
142
75.0
90.9
109
PCB-121
56558-18-0
ng/kg
20.0 J
5.79 J
9.17 J
9.46 UX
7.01 J
10.6 J
9.53 J
2.19 U
2.20 U
8.02 J
PCB-122
76842-07-4
ng/kg
627
125
229
291
102
201
180
131
163
213
PCB-123
65510-44-3
ng/kg
1290
336
673
879
474
940
770
393
448
523
PCB-126
57465-28-8
ng/kg
91.2
33.4 J
59.6
64.4
34.9 J
59.4
54.7
25.0 J
29.0 J
31.2 J
PCB-127
39635-33-1
ng/kg
44.0 J
9.37 J
14.7 J
18.9 J
14.4 J
26.8 J
23.0 J
7.02 UX
2.24 U
2.17 U
PCB-128/166
128-166
ng/kg
2530
719
1280
1900
1010
1560
1250
617
797
807
PCB-129/138/163
129-138-163
ng/kg
21900
5000
9130
13200
7520
11000
9030
4400
5440
6620
PCB-130
52663-66-8
ng/kg
1450
390
686
959
532
803
616
303
385
487
PCB-131
61798-70-7
ng/kg
237
54.9
84.2
129
66.0
97.9
74.8
43.1 J
72.9
85.3
PCB-132
38380-05-1
ng/kg
3680
1140
1990
2620
1590
2030
1690
902
1180
1500
PCB-133
35694-04-3
ng/kg
431
116
205
288
170
250
192
86.9
111
149
PCB-134/143
^134-143
ng/kg
747
230
389
550
336
454
376
155
218
285
PCB-135/151
^135-151
ng/kg
3190
989
1800
2340
1490
2020
1830
664
1090
1160
PCB-136
38411-22-2
ng/kg
699
249
462
593
347
500
444
158
258
268
PCB-137
35694-06-5
ng/kg
1260
320
590
833
454
605
469
226
312
412
PCB-139/140
^139-140
ng/kg
521
113
241
323
193
243
191
89.3 J
130
168
PCB-141
52712-04-6
ng/kg
1510
571
1030
1450
786
1190
968
336
589
673
PCB-142
41411-61-4
ng/kg
11.7 UX
2.32 U
4.85 J
6.66 J
3.88 UX
7.51 J
4.97 J
2.40 U
2.40 U
2.32 U
PCB-144
68194-14-9
ng/kg
487
143
271
351
197
310
247
99.2
176
180
PCB-145
74472-40-5
ng/kg
9.88 J
2.90 U
2.90 U
2.96 U
3.07 U
3.02 U
3.00 U
3.00 U
3.20 J
3.23 J
PCB-146
51908-16-8
ng/kg
3770
875
1550
2150
1260
1840
1450
680
868
1220
PCB-147/149
^147-149
ng/kg
10100
3150
5430
8080
4910
6670
5620
2030
2970
3440
PCB-148
74472-41-6
ng/kg
44.6 J
11.9 J
20.1 J
27.8 J
15.5 J
25.3 J
22.1 J
7.95 UX
9.41 UX
14.7 J
PCB-150
68194-08-1
ng/kg
23.3 J
6.53 J
13.1 J
16.1 J
9.67 J
14.4 J
11.5 J
4.58 J
6.60 J
7.48 UX
PCB-152
68194-09-2
ng/kg
20.9 J
4.68 J
10.1 J
10.6 J
7.16 J
5.75 J
7.67 J
4.33 J
7.60 J
7.45 J
PCB-153/168
153-168
ng/kg
15700
3650
6490
9670
5110
8300
6600
3170
4020
5430
PCB-154
60145-22-4
ng/kg
304
84.7
156
220
133
201
159
68.5
97.3
107
PCB-155
33979-03-2
ng/kg
3.63 UX
1.58 U
1.69 J
1.73 J
1.67 U
1.64 U
1.64 UX
1.63 U
1.63 U
1.58 U
PCB-156/157
^156-157
ng/kg
2300
584
1020
1470
774
1410
1140
573
690
792
PCB-158
74472-42-7
ng/kg
1840
411
742
1070
596
811
765
371
446
543
PCB-159
39635-35-3
ng/kg
27.6 J
9.55 J
17.4 J
24.9 J
18.2 J
35.9 J
26.8 J
2.92 U
4.47 J
2.83 U
PCB-160
41411-62-5
ng/kg
17.3 J
4.91 J
7.03 J
12.2 J
10.2 J
16.8 J
30.2 J
2.04 U
2.04 U
1.97 U
PCB-161
74472-43-8
ng/kg
2.94 U
2.91 U
2.91 U
2.97 U
3.08 U
3.03 U
3.01 U
3.01 U
3.01 U
2.91 U
PCB-162
39635-34-2
ng/kg
94.3
24.9 J
38.6 J
64.4
29.3 J
47.3 J
36.6 J
16.4 J
11.2 J
28.1 J
PCB-164
74472-45-0
ng/kg
661
235
362
554
302
495
426
167
207
237
PCB-165
74472-46-1
ng/kg
23.9 J
7.75 J
11.7 J
17.0 J
9.89 J
15.9 J
9.25 J
2.43 U
2.43 U
9.63 J
PCB-167
52663-72-6
ng/kg
953
207
364
533
273
533
412
226
265
331
PCB-169
32774-16-6
ng/kg
4.98 J
3.83 U
3.81 U
5.46 UX
4.04 U
7.64 UX
6.40 UX
5.38 UX
6.64 UX
3.91 UX
PCB-170
35065-30-6
ng/kg
2120
471
867
1130
724
1390
1110
644
689
839
PCB-171/173
^Tl71-173
ng/kg
676
171
291
376
265
377
280
172
209
245
PCB-172
52663-74-8
ng/kg
516
143
248
328
201
305
251
124
141
161
PCB-174
38411-25-5
ng/kg
949
387
619
909
534
1050
745
304
352
378
PCB-175
40186-70-7
ng/kg
106
27.6 J
46.1 J
60.3
37.6 J
60.3
42.3 J
27.5 J
31.7 J
37.4 J
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
7/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BR-FF-11
CL-FF-23
CL-FF-24
CL-FF-25
CL-FF-26
CL-FF-27
CL-FF-28
CL-FF-29
CL-FF-30
CL-FF-31
Location:
BR-FF
CL-FF
CI^FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
CL-FF
<
Species:
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
White Sucker
White Sucker
White Sucker
Length (cm):
39.1
18.0
18.3
19.7
17.5
18.7
19
40
37.1
39.6
Weight (g):
681.1
134.6
139.8
196.7
120.1
144.1
158.5
737
588.9
781.8
Sample Date:
5/18/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227352011
40227353003
40227353004
40227353005
40227353006
40227353007
40227353008
40227353009
40227353010
40227353011
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
161
52.5
98.8
132
84.7
173
111
47.0 J
67.2
80.4
PCB-177
52663-70-4
ng/kg
1400
381
654
891
587
967
647
335
394
528
PCB-178
52663-67-9
ng/kg
567
179
302
404
277
428
319
137
168
207
PCB-179
52663-64-6
ng/kg
422
134
255
308
222
317
252
108
172
185
PCB-180/193
180-193
ng/kg
5590
1480
2750
3410
2050
4090
2980
1560
1830
2280
PCB-181
74472-47-2
ng/kg
35.1 J
9.80 J
16.9 J
21.6 J
14.7 J
22.1 UX
18.4 J
3.12 U
3.12 U
13.9 J
PCB-182
60145-23-5
ng/kg
21.7 J
8.36 J
12.4 J
18.8 J
10.7 J
15.2 UX
10.2 UX
1.05 U
1.05 U
9.26 UX
PCB-183/185
183-185
ng/kg
1700
427
752
1050
654
1090
783
414
493
660
PCB-184
74472-48-3
ng/kg
6.81 J
1.73 U
2.27 UX
3.42 J
2.12 UX
2.21 UX
1.78 U
1.79 U
1.79 U
2.22 UX
PCB-186
74472-49-4
ng/kg
1.52 U
1.50 U
1.50 U
1.53 U
1.59 U
1.56 U
1.55 U
1.55 U
1.55 U
1.50 U
PCB-187
52663-68-0
ng/kg
5080
1380
2490
3100
2510
3770
2680
1060
1430
1710
PCB-188
74487-85-7
ng/kg
6.26 J
2.07 J
2.65 J
4.72 J
2.96 UX
5.66 UX
3.63 J
1.88 U
1.89 U
2.84 UX
PCB-189
39635-31-9
ng/kg
111
26.3 J
46.1 J
62.3
35.8 J
61.6
46.1 J
28.3 J
31.7 UX
44.1 J
PCB-190
41411-64-7
ng/kg
276
61.6
115
144
99.6
352
242
118
134
111
PCB-191
74472-50-7
ng/kg
98.0
22.5 J
45.2 J
58.4
33.7 J
OO
00
46.8 J
28.2 J
31.1 J
41.3 J
PCB-192
74472-51-8
ng/kg
2.59 U
2.57 U
2.56 U
2.61 U
2.71 U
2.67 U
2.65 U
2.65 U
2.65 U
2.56 U
PCB-194
35694-08-7
ng/kg
1150
244
409
531
321
573
404
230
342
382
PCB-195
52663-78-2
ng/kg
423
94.4
169
223
145
287
191
114
136
150
PCB-196
42740-50-1
ng/kg
596
126
226
279
184
393
276
152
196
220
PCB-197/200
197-200
ng/kg
113 J
36.4 J
62.1 J
77.7 J
55.8 J
104 J
76.0 J
33.0 J
50.8 J
50.3 J
PCB-198/199
198-199
ng/kg
1600
411
683
810
596
1440
934
455
606
677
PCB-201
40186-71-8
ng/kg
142
40.5 J
64.5 J
90.0
58.8 J
83.0
61.7 J
25.0 J
45.4 J
54.8 J
PCB-202
2136-99-4
ng/kg
273
85.5
143
188
130
238
150
57.6 J
96.1
107
PCB-203
52663-76-0
ng/kg
995
244
419
536
346
724
523
270
364
387
PCB-204
74472-52-9
ng/kg
1.79 U
1.77 U
1.76 U
1.80 U
1.87 U
1.84 U
1.82 U
1.83 U
1.83 U
1.77 U
PCB-205
74472-53-0
ng/kg
69.8 J
15.0 J
24.6 J
33.5 J
22.8 J
38.8 J
21.7 UX
16.3 J
24.7 J
24.2 J
PCB-206
40186-72-9
ng/kg
698
140
228
305
212
290
206
148
202
265
PCB-207
52663-79-3
ng/kg
64.7 J
18.0 J
24.9 J
40.3 J
26.7 J
32.5 J
26.1 J
14.2 J
19.5 J
22.5 J
PCB-208
52663-77-1
ng/kg
172
43.5 J
66.7 J
93.5
64.4 J
89.6
73.7
38.8 J
51.8 J
65.5 J
PCB-209
ARC-209
ng/kg
211
47.8 J
66.5 J
102
79.5
80.3
74.0
40.2 J
66.9 J
76.7
Total PCB Congeners
--
ng/kg
1362417.25 J
340744.56 J
574096.79 J
593236.23 J
374920.46 J
518004.12 J
548337.18 J
349039.31 J
466959.67 J
494378.25 J
Lipid Content
ARC-LIPID
%
0.79
0.24
0.32
0.21
0.18
0.11
0.18
0.40
0.61
0.46
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
8/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
CL-FF-32
CL-FF-33
ISM27-FF-34
ISM27-FF-35
ISM27-FF-36
ISM27-FF-37
ISM27-FF-38
ISM27-FF-39
ISM27-FF-40
ISM27-FF-41
Location:
CL-FF
CL-FF
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
<
Species:
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Pumpkinseed
White Sucker
White Sucker
Length (cm):
36.3
41.9
19.4
17.8
15.3
15.8
15.7
14
34.1
28.7
Weight (g):
496.2
841.9
178.2
154.4
56.9
98.4
86.5
54.8
482.9
233.5
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227353012
40227353013
40227353014
40227353015
40227353016
40227353017
40227353018
40227353019
40227353020
40227354001-R
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
557
1930
914
824
1720
902
1540
920
1560
2630
PCB-2
2051-61-8
ng/kg
8.15.T
15.3 J
11.7 J
8.94 J
21.7 J
10.2 J
16.9 J
9.52 J
9.81 J
14.5 J
PCB-3
2051-62-9
ng/kg
112
251
229
211
419
205
400
197
162
283
PCB-4
13029-08-8
ng/kg
3850
12800
3900
2940
6780
3510
3050
3160
7150
9360
PCB-5
116605-91-7
ng/kg
2.98 U
28.9
3.11 UX
3.23 UX
10.3 J
3.01 U
6.19 UX
6.81 UX
25.5
14.7 J
PCB-6
25569-80-6
ng/kg
979
2510
999
524
2880
879
1080
724
2120
1660
PCB-7
33284-50-3
ng/kg
154
306
33.5
24.4
121
28.3
213
94.9
145
207
PCB-8
34883-43-7
ng/kg
2920
7160
2890
1470
6020
2520
5040
2500
6420
7460
PCB-9
34883-39-1
ng/kg
157
380
116
64.2
625
94.2
161
125
286
251
PCB-10
J 33146-45-1
ng/kg
144
447
128
105
244
119
118
118
260
370
PCB-11
J 2050-67-1
ng/kg
96.2 U
94.1 U
96.1 U
90.7 U
95.6 U
97.1 U
96.6 U
122 U
92.6 U
89.3 U
PCB-12/13
112-13
ng/kg
58.9
116
51.8
43.6 J
143
44.6 J
76.0
57.9 J
73.6
74.7
PCB-14
34883-41-5
ng/kg
3.24 U
3.17 U
3.24 U
3.06 U
3.22 U
3.27 U
3.25 U
4.11 U
3.12 U
6.12 U
PCB-15
2050-68-2
ng/kg
1370
2060
671
486
2040
411
666
307
887
1480
PCB-16
38444-78-9
ng/kg
339
889
170
74.8
241
173
86.9
138
939
635
PCB-17
37680-66-3
ng/kg
3920
10300
2590
841
3830
2020
1440
2160
8810
5950
PCB-18/30
118-30
ng/kg
1350
4110
1540
599
6170
1420
680
1150
2780
1890
PCB-19
38444-73-4
ng/kg
1380
4750
1070
433
1290
777
265
562
2240
1950
PCB-20/28
20-28
ng/kg
12500
44100
15200
4590
51100
9560
31200
4280
33600
7980
PCB-21/33
J21-33
ng/kg
299
713
95.1 J
74.6 J
235
184
159
425
1200
876
PCB-22
38444-85-8
ng/kg
1950
5250
1900
737
5860
1520
3140
963
4730
1970
PCB-23
55720-44-0
ng/kg
7.67 J
18.2 J
6.06 J
3.27 J
24.6
6.10.T
10.1 J
3.79 U
18.8 J
9.39 J
PCB-24
H 55702-45-9
ng/kg
36.1
90.8
27.8
10.2 J
24.9
23.9 J
12.7 J
16.5 J
85.6
57.7
PCB-25
J 55712-37-3
ng/kg
1750
4650
2300
633
8140
1430
3430
943
3360
1720
PCB-26/29
26-29
ng/kg
2360
5840
3240
978
12800
1990
3740
1440
4170
2240
PCB-27
38444-76-7
ng/kg
941
2190
760
175
1080
474
602
315
1440
1040
PCB-31
16606-02-3
ng/kg
6330
17200
3540
1220
17400
2790
9580
4320
14600
6610
PCB-32
38444-77-8
ng/kg
3220
8650
3450
813
6020
2370
4080
1750
9250
4280
PCB-34
37680-68-5
ng/kg
210
429
234
67.0
645
144
140
56.8
349
148
PCB-35
37680-69-6
ng/kg
3.16 U
3.09 U
3.16 U
2.98 U
3.14 U
3.19 U
3.18 U
4.01 U
3.04 U
2.46 U
PCB-36
38444-87-0
ng/kg
2.37 U
2.32 U
2.36 U
2.23 U
2.35 U
2.39 U
2.38 U
3.00 U
2.28 U
2.09 U
PCB-37
38444-90-5
ng/kg
482
962
244
106
852
94.4
269
99.8
263
306
PCB-38
J 53555-66-1
ng/kg
11.7 J
28.4
17.2 J
6.25 J
37.4
11.8 J
13.8 J
4.87 J
19.9 J
2.90 UX
PCB-39
38444-88-1
ng/kg
20.5 J
41.0
9.18.T
5.00 J
43.9
7.32 J
29.8
10.8 J
47.3
14.8 J
PCB-40/41/71
J 40-41-71
ng/kg
4920
12500
3530
1310
12300
3180
3810
1980
10600
3400
PCB-42
36559-22-5
ng/kg
4130
12300
4050
1830
11800
3280
2680
1510
11700
3310
PCB-43/73
H43-73
ng/kg
485
745
471
160
1040
312
377
108 J
677
272
PCB-44/47/65
J 44-57-65
ng/kg
15200
49800
23300
9210
56400
14600
24900
5070
43700
15100
PCB-45/51
J45-51
ng/kg
1420
4650
1210
446
2590
950
472
506
3940
1270
PCB-46
H 41464-47-5
ng/kg
296
809
129
53.7
311
111
41.2 J
60.0 J
728
267
PCB-48
70362-47-9
ng/kg
909
2730
512
205
2680
538
669
726
2570
833
PCB-49/69
49-69
ng/kg
12800
47800
18900
8400
51600
13400
15000
4880
39100
10500
PCB-50/53
J 50-53
ng/kg
1350
3590
1110
348
3210
908
488
453
2610
947
PCB-52
35693-99-3
ng/kg
8630
46900
21300
9280
64000
14800
14700
5580
14800
3680
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
9/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
CL-FF-32
CL-FF-33
ISM27-FF-34
ISM27-FF-35
ISM27-FF-36
ISM27-FF-37
ISM27-FF-38
ISM27-FF-39
ISM27-FF-40
ISM27-FF-41
Location:
CL-FF
CL-FF
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
<
Species:
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Pumpkinseed
White Sucker
White Sucker
Length (cm):
36.3
41.9
19.4
17.8
15.3
15.8
15.7
14
34.1
28.7
Weight (g):
496.2
841.9
178.2
154.4
56.9
98.4
86.5
54.8
482.9
233.5
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227353012
40227353013
40227353014
40227353015
40227353016
40227353017
40227353018
40227353019
40227353020
40227354001-R
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
26.7 J
89.4
14.2 J
3.94 UX
19.5 J
10.5 J
4.51 UX
14.4 J
57.3
35.6 UX
PCB-55
74338-24-2
ng/kg
146
300
143
62.6
483
113 UX
235
73.0
315
54.4
PCB-56
41464-43-1
ng/kg
3350
9230
3240
1220
13300
2360
4220
1150
8310
2130
PCB-57
70424-67-8
ng/kg
199
560
288
116
631
177
362
67.5
387
72.6
PCB-58
41464-49-7
ng/kg
106
272
118
52.5
259
72.7
119
24.4 J
201
80.9
PCB-59/62/75
59-62-75
ng/kg
1830
5310
2400
1070
5290
1720
2490
588
4300
1250
PCB-60
33025-41-1
ng/kg
2830
8470
4650
2220
11700
3520
7330
1160
8160
4200
PCB-61/70/74/76
61-70-74-76
ng/kg
18600
56700
18800
8350
48800
13000
33700
7960
49800
20100
PCB-63
74472-34-7
ng/kg
1750
5120
2220
1130
4660
1510
2780
575
4160
2070
PCB-64
52663-58-8
ng/kg
8940
27100
9540
4710
25100
8110
5830
2910
24100
6600
PCB-66
32598-10-0
ng/kg
14700
45800
21600
9240
52600
15100
34300
4960
38300
18900
PCB-67
73575-53-8
ng/kg
225
546
492
178
1620
305
905
196
457
142
PCB-68
73575-52-7
ng/kg
382
969
434
199
690
259
512
77.6
722
406
PCB-72
41464-42-0
ng/kg
560
1200
670
293
1240
403
828
159
926
440
PCB-77
32598-13-3
ng/kg
576
1690
845
374
2720
605
1180
225
1280
222
PCB-78
70362-49-1
ng/kg
2.54 U
2.49 U
2.54 U
2.40 U
2.53 U
2.57 U
2.55 U
3.23 U
2.45 U
3.61 U
PCB-79
41464-48-6
ng/kg
124
228
108
49.3
199
76.2
135
42.5 J
240
164
PCB-80
33284-52-5
ng/kg
2.13 U
2.08 U
2.13 U
2.01 U
2.12 U
2.15 U
2.14 U
2.71 U
2.05 U
2.64 U
PCB-81
70362-50-4
ng/kg
60.5
156
86.4
40.9 J
206
62.1
79.6
20.4 J
147
73.1
PCB-82
52663-62-4
ng/kg
1560
2870
1340
757
3130
1210
603
439
2790
1880
PCB-83
60145-20-2
ng/kg
763
1430
984
550
2060
799
243
92.6
1300
629
PCB-84
52663-60-2
ng/kg
1350
3440
1520
840
4000
1330
554
335
2810
1010
PCB-85/116/117
85-116-117
ng/kg
5580
10300
5440
2620
9230
3860
6050
1260
7790
7720
PCB-86/87/97/108/119/125
868797108119125
ng/kg
9000
17500
8670
4660
17700
6820
8180
2770
14200
12100
PCB-88/91
88-91
ng/kg
2670
6420
2980
1570
5890
2260
1800
679
4910
2800
PCB-89
73575-57-2
ng/kg
149
366
24.4 J
14.2 J
88.7
29.9 J
50.1
39.3 J
322
140
PCB-90/101/113
90-101-113
ng/kg
11100
25900
15000
8150
25700
11000
13000
4520
19200
10400
PCB-92
52663-61-3
ng/kg
1840
5710
3260
1730
5660
2330
3030
881
3390
824
PCB-93/98/100/102
9398100102
ng/kg
804
1890
657
325
1590
563
623
245 J
1490
700
PCB-94
73575-55-0
ng/kg
87.3
159
27.6 J
13.3 J
129
31.7 J
36.7 J
14.3 J
126
60.9
PCB-95
38379-99-6
ng/kg
3400
11200
6560
3530
14500
5400
3500
1710
7240
2390
PCB-96
73575-54-9
ng/kg
60.3
202
42.3 J
16.5 J
99.0
37.7 J
10.4 J
18.1 J
158
52.9
PCB-99
38380-01-7
ng/kg
11600
21100
11500
5910
19200
8250
12300
2740
16400
16400
PCB-103
60145-21-3
ng/kg
113
336
210
103
339
139
122
58.0 J
226
92.5
PCB-104
56558-16-8
ng/kg
1.14 U
5.29 J
1.14 U
1.07 U
1.52 UX
1.15 U
1.14 U
1.45 U
3.39 J
2.80 U
PCB-105
32598-14-4
ng/kg
6210
9830
6840
3520
11700
4900
7710
1520
8700
8340
PCB-106
70424-69-0
ng/kg
2.24 U
2.19 U
17.7 J
2.11 U
47.0 J
2.26 U
31.0 J
7.05 J
2.16 U
2.09 U
PCB-107/124
107-124
ng/kg
334
705
242
125
619
199
518
138
586
431
PCB-109
74472-35-8
ng/kg
1600
2530
1400
818
2480
1040
1450
431
2070
2320
PCB-110/115
110-115
ng/kg
15300
27800
15300
8690
31100
12500
8760
4360
21500
15900
PCB-111
39635-32-0
ng/kg
25.7 J
33.1 J
18.4 J
9.76 J
29.8 J
11.8 J
18.5 J
7.69 J
24.4 J
26.6 J
PCB-112
74472-36-9
ng/kg
132
212
138
66.1
245
126
93.7
16.3 J
184
73.3
PCB-114
74472-37-0
ng/kg
690
1070
680
337
1140
490
645
152
933
1140
PCB-118
31508-00-6
ng/kg
19600
28400
16200
8990
26500
11500
16100
3890
24100
25300
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
10/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
CL-FF-32
CL-FF-33
ISM27-FF-34
ISM27-FF-35
ISM27-FF-36
ISM27-FF-37
ISM27-FF-38
ISM27-FF-39
ISM27-FF-40
ISM27-FF-41
Location:
CL-FF
CL-FF
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
<
Species:
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Pumpkinseed
White Sucker
White Sucker
Length (cm):
36.3
41.9
19.4
17.8
15.3
15.8
15.7
14
34.1
28.7
Weight (g):
496.2
841.9
178.2
154.4
56.9
98.4
86.5
54.8
482.9
233.5
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227353012
40227353013
40227353014
40227353015
40227353016
40227353017
40227353018
40227353019
40227353020
40227354001-R
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
116
160
78.2
47.6
130
55.9
77.8
27.8 J
127
134
PCB-121
56558-18-0
ng/kg
7.61 J
11.2 J
5.94 J
3.66 J
7.85 J
4.96 J
6.21 J
2.82 U
8.27 J
6.71 UX
PCB-122
76842-07-4
ng/kg
107
281
104
56.3
264
74.8
203
51.3 J
215
133
PCB-123
65510-44-3
ng/kg
550
787
488
260
845
308
533
107
643
707
PCB-126
57465-28-8
ng/kg
26.7 J
47.6 J
38.2 J
21.0 J
70.6
27.5 J
21.4 J
9.02 J
36.6 J
28.9 J
PCB-127
39635-33-1
ng/kg
21.2 J
21.1 J
12.2 J
8.84 J
17.1 J
8.18.T
6.54 J
5.87 J
8.23 J
23.3 J
PCB-128/166
128-166
ng/kg
1090
1240
879
520
1300
671
648
478
1260
1810
PCB-129/138/163
129-138-163
ng/kg
9510
10200
6440
4000
9770
5090
4230
4480
11400
13600
PCB-130
52663-66-8
ng/kg
629
661
446
279
663
339
265
247
811
826
PCB-131
61798-70-7
ng/kg
77.4
82.0
43.3 J
30.4 J
84.1
37.2 J
20.5 J
18.9 J
94.6
110
PCB-132
38380-05-1
ng/kg
1550
2030
1210
921
2070
1260
557
634
2370
1610
PCB-133
35694-04-3
ng/kg
169
213
132
84.7
199
105
89.0
99.1
226
239
PCB-134/143
^134-143
ng/kg
211
345
270
179
432
230
135
108 J
358
246
PCB-135/151
^135-151
ng/kg
887
1710
1300
821
2160
1090
798
972
1990
1280
PCB-136
38411-22-2
ng/kg
167
407
325
205
558
275
103
179
441
275
PCB-137
35694-06-5
ng/kg
700
650
409
234
568
294
266
159
720
910
PCB-139/140
^139-140
ng/kg
219
247
139
82.6 J
221
110
109
70.7 J
245
282
PCB-141
52712-04-6
ng/kg
763
1060
842
567
1250
666
489
776
1240
844
PCB-142
41411-61-4
ng/kg
5.32 J
2.72 J
2.42 U
2.29 U
4.74 UX
2.45 U
2.44 U
3.08 U
2.33 U
5.39 J
PCB-144
68194-14-9
ng/kg
182
274
194
124
314
159
104
156
306
260
PCB-145
74472-40-5
ng/kg
3.03 U
5.61 J
3.03 U
2.86 U
3.01 U
3.06 U
3.05 U
3.85 U
4.65 J
2.37 UX
PCB-146
51908-16-8
ng/kg
1700
1830
1100
698
1740
860
748
896
2060
2290
PCB-147/149
^147-149
ng/kg
3440
4980
3860
2430
6540
3240
2020
2800
5610
5070
PCB-148
74472-41-6
ng/kg
14.9 J
24.3 J
13.1 J
8.59 J
21.3 J
9.86 J
9.86 J
9.53 J
20.5 J
19.9 J
PCB-150
68194-08-1
ng/kg
7.48 J
13.1 J
7.81 J
5.03 J
13.7 J
5.47 J
3.25 U
4.11 U
11.1 J
8.24 J
PCB-152
68194-09-2
ng/kg
4.42 J
12.1 J
5.20 J
3.11 U
9.42 J
3.87 J
3.31 U
4.19 U
7.60 J
4.50 J
PCB-153/168
153-168
ng/kg
8930
7950
4750
3150
7510
3980
2840
4080
9650
12100
PCB-154
60145-22-4
ng/kg
106
165
103
61.9
172
81.7
75.5
80.8
156
123
PCB-155
33979-03-2
ng/kg
1.65 U
2.51 J
2.10 J
1.56 U
3.77 J
2.11 J
1.66 U
7.57 J
3.69 J
3.48 J
PCB-156/157
^156-157
ng/kg
1220
1220
790
488
1210
585
558
392
1160
1370
PCB-158
74472-42-7
ng/kg
765
824
525
330
751
415
337
341
929
1210
PCB-159
39635-35-3
ng/kg
15.0 J
15.7 J
14.0 J
13.1 J
30.4 J
17.5 J
8.19 J
18.4 UX
16.0 J
13.2 J
PCB-160
41411-62-5
ng/kg
2.06 U
13.6 UX
8.18.T
5.91 J
7.64 J
2.08 U
2.89 UX
4.69 J
13.4 J
15.4 J
PCB-161
74472-43-8
ng/kg
3.04 U
2.98 U
3.04 U
2.87 U
3.02 U
3.07 U
3.06 U
3.87 U
2.93 U
1.53 U
PCB-162
39635-34-2
ng/kg
46.3 J
48.4
29.9 J
18.0 J
46.4 J
21.7 J
17.5 J
20.1 J
48.9
57.7
PCB-164
74472-45-0
ng/kg
273
322
283
205
450
244
205
270
405
412
PCB-165
74472-46-1
ng/kg
11.0 J
11.6 J
7.65 J
3.24 J
11.8 J
4.06 J
4.67 UX
3.12 U
10.5 J
11.4 J
PCB-167
52663-72-6
ng/kg
543
495
296
197
462
233
207
207
535
615
PCB-169
32774-16-6
ng/kg
5.00 UX
8.14 J
6.86 J
4.88 UX
12.1 UX
7.63 J
4.01 U
7.05 J
6.66 UX
5.45 UX
PCB-170
35065-30-6
ng/kg
1620
1250
902
654
1380
856
483
1170
1610
1750
PCB-171/173
^Tl71-173
ng/kg
391
380
233
171
364
236
137
310
490
506
PCB-172
52663-74-8
ng/kg
316
241
183
144
303
177
101
275
294
372
PCB-174
38411-25-5
ng/kg
422
525
665
489
1020
617
289
1030
738
593
PCB-175
40186-70-7
ng/kg
64.6
57.2
38.0 J
27.6 J
59.4
38.7 J
20.5 J
48.6 J
80.4
76.4
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
11/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
CL-FF-32
CL-FF-33
ISM27-FF-34
ISM27-FF-35
ISM27-FF-36
ISM27-FF-37
ISM27-FF-38
ISM27-FF-39
ISM27-FF-40
ISM27-FF-41
Location:
CL-FF
CL-FF
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-M1-27
<
Species:
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Pumpkinseed
White Sucker
White Sucker
Length (cm):
36.3
41.9
19.4
17.8
15.3
15.8
15.7
14
34.1
28.7
Weight (g):
496.2
841.9
178.2
154.4
56.9
98.4
86.5
54.8
482.9
233.5
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227353012
40227353013
40227353014
40227353015
40227353016
40227353017
40227353018
40227353019
40227353020
40227354001-R
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
116
117
97.4
70.2
137
85.3
28.9 J
114
166
121
PCB-177
52663-70-4
ng/kg
743
726
569
421
873
537
264
717
986
915
PCB-178
52663-67-9
ng/kg
256
299
238
177
365
218
125
313
391
372
PCB-179
52663-64-6
ng/kg
160
278
224
158
328
214
80.6
244
366
208
PCB-180/193
180-193
ng/kg
4790
3550
2530
1880
4090
2390
1360
3680
4460
4550
PCB-181
74472-47-2
ng/kg
30.1 J
19.5 J
14.9 J
10.5 J
21.7 J
11.7 J
8.04 J
11.7 J
23.1 J
26.3 J
PCB-182
60145-23-5
ng/kg
17.9 J
15.4 J
13.4 J
9.55 J
15.4 J
10.4 J
3.66 UX
14.4 J
18.0 J
15.5 J
PCB-183/185
183-185
ng/kg
1140
1090
706
526
1100
681
370
982
1350
1380
PCB-184
74472-48-3
ng/kg
4.21 J
3.57 J
3.47 J
2.08 J
5.05 J
2.69 UX
1.81 U
9.01 J
6.83 J
5.90 J
PCB-186
74472-49-4
ng/kg
1.57 U
1.54 U
1.57 U
1.48 U
1.56 U
1.59 U
1.58 U
2.00 U
1.51 U
2.24 U
PCB-187
52663-68-0
ng/kg
2460
2620
2070
1490
3150
1800
1670
2510
3320
2840
PCB-188
74487-85-7
ng/kg
4.57 J
4.23 J
3.64 J
2.00 J
4.83 J
2.73 J
1.91 U
3.68 J
4.07 J
3.50 UX
PCB-189
39635-31-9
ng/kg
85.4
63.9
40.0 J
30.2 J
62.4
38.4 J
21.1 J
48.8 J
77.5
88.5
PCB-190
41411-64-7
ng/kg
241
165
105
81.5
151
107
51.7
138
211
214
PCB-191
74472-50-7
ng/kg
72.3
57.5
40.4 J
31.4 J
64.7
42.7 J
23.7 J
60.9 J
76.0
79.6
PCB-192
74472-51-8
ng/kg
2.68 U
2.62 U
2.68 U
2.53 U
2.66 U
2.71 U
2.69 U
3.40 U
2.58 U
2.74 U
PCB-194
35694-08-7
ng/kg
882
597
382
299
640
362
209
490
718
830
PCB-195
52663-78-2
ng/kg
341
232
157
116
234
144
84.7
224
267
299
PCB-196
42740-50-1
ng/kg
469
329
222
161
327
192
116
286
418
376
PCB-197/200
197-200
ng/kg
78.6 J
69.9 J
61.1 J
41.9 J
88.2 J
51.8 J
27.4 J
72.6 J
94.3 J
67.6 J
PCB-198/199
198-199
ng/kg
1380
996
720
539
1040
630
427
850
1210
905
PCB-201
40186-71-8
ng/kg
96.7
74.6
56.3 J
38.3 J
79.7
50.5 J
30.0 J
68.7 J
104
104
PCB-202
2136-99-4
ng/kg
166
158
133
89.0
190
108
72.4 J
142
180
174
PCB-203
52663-76-0
ng/kg
935
576
385
289
574
338
207
460
697
712
PCB-204
74472-52-9
ng/kg
1.84 U
1.81 U
1.84 U
1.74 U
1.83 U
1.86 U
1.85 U
2.34 U
1.78 U
3.80 U
PCB-205
74472-53-0
ng/kg
57.1 J
37.1 J
23.0 J
18.0 J
36.1 J
22.1 J
12.3 J
29.0 J
47.4 J
49.8 J
PCB-206
40186-72-9
ng/kg
597
394
199
157
308
214
149
171
416
518
PCB-207
52663-79-3
ng/kg
55.3 J
33.4 J
22.1 J
16.3 J
34.0 J
20.3 J
17.1 J
21.4 J
38.9 J
54.1 J
PCB-208
52663-77-1
ng/kg
156
107
61.0 J
44.0 J
90.8
58.0 J
47.8 J
53.7 J
102
131
PCB-209
ARC-209
ng/kg
193
116
65.0 J
46.2 J
83.0
67.3 J
81.4
51.6 J
103
152
Total PCB Congeners
--
ng/kg
298335.63 J
716727.77 J
321869.69 J
156248.72 J
752565.16 J
238752.79 J
337012.54 J
126541.75 J
581946.14 J
333829.1 J
Lipid Content
ARC-LIPID
%
0.27
0.77
0.29
0.32
0.29
0.34
0.38
0.26
0.45
0.53
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
12/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM27-FF-42
ISM27-FF-43
ISM27-FF-44
ISM29-FF-45
ISM29-FF-46
ISM29-FF-47
ISM29-FF-48
ISM29-FF-49
ISM29-FF-50
ISM29-FF-51
Location:
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
<
Species:
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Bluegill
White Sucker
Length (cm):
32.1
33.5
32.4
16.1
23
19.8
22.1
16.8
15.1
30.6
Weight (g):
386.2
366.1
413.9
104
336.5
195.7
287.8
99.2
63.2
309.2
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227354002-R
40227354003-R
40227354004-R
40227354005-R
40227354006-R
40227354007-R
40227354008-R
40227354009-R
40227354010
40227354011-R
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
1330
1140
3510
8.96 UX
5.49 J
5.17 J
391
4.87 UJX
3.63 U
11.7 J
PCB-2
2051-61-8
ng/kg
15.2 J
9.70 UX
21.2 J
2.46 U
2.41 U
2.33 U
6.73 J
2.37 UJ
2.42 U
2.37 U
PCB-3
2051-62-9
ng/kg
223
110
334
3.87 U
3.79 U
3.67 U
76.1
3.73 UJ
3.81 U
3.74 U
PCB-4
13029-08-8
ng/kg
5030
6220
20700
33.1
26.3
15.2 UX
3040
15.4 UJX
7.37 UX
31.5 UX
PCB-5
116605-91-7
ng/kg
13.9 J
22.9 J
38.3
4.37 U
4.29 U
4.15 U
5.23 UX
4.22 UJ
4.31 U
4.23 U
PCB-6
25569-80-6
ng/kg
925
2360
3980
9.85 UX
11.3 UX
3.37 U
1420
3.42 UJ
3.50 U
7.75 UX
PCB-7
33284-50-3
ng/kg
127
153
561
3.94 U
3.86 U
3.74 U
41.3 UX
3.80 UJ
3.88 U
3.80 U
PCB-8
34883-43-7
ng/kg
3170
7100
14300
32.0
43.6
14.8 J
4390
27.3 J
12.8 UX
28.4
PCB-9
34883-39-1
ng/kg
154
318
699
2.55 U
2.50 U
2.42 U
230
2.46 UJ
2.52 U
2.47 U
PCB-10
J 33146-45-1
ng/kg
180
238
736
2.91 U
2.86 U
2.76 U
111
2.81 UJ
2.87 U
2.81 U
PCB-11
J 2050-67-1
ng/kg
90.9 J
100 J
104 J
92.5 U
90.7 U
87.8 U
85.4 U
89.3 UJ
91.3U
89.4 U
PCB-12/13
112-13
ng/kg
73.0
59.6
151
4.90 U
4.81 U
4.65 U
29.5 J
4.73 UJ
4.83 U
4.74 U
PCB-14
34883-41-5
ng/kg
5.98 U
6.25 U
6.01 U
6.34 U
6.22 U
6.02 U
5.85 U
6.12 UJ
6.25 U
6.13 U
PCB-15
2050-68-2
ng/kg
806
693
1280
5.13 UX
7.25 UX
5.43 UX
1010
2.83 UJ
2.89 U
2.83 U
PCB-16
38444-78-9
ng/kg
291
869
1260
6.58 J
4.86 UX
3.31 U
219
3.51 J
3.44 U
16.3 J
PCB-17
37680-66-3
ng/kg
2020
7250
19600
46.9
64.7
47.3
6400
34.8 J
9.26 J
595
PCB-18/30
118-30
ng/kg
900
3110
5400
32.5 J
37.2 J
38.1 J
3500
14.3 J
11.6 U
43.9 J
PCB-19
38444-73-4
ng/kg
614
1770
6630
12.3 J
15.3 J
6.23 J
1170
3.32 UJ
3.39 U
14.6 J
PCB-20/28
20-28
ng/kg
10200
31000
41500
354
1290
4460
44600
442 J
137
8070
PCB-21/33
J21-33
ng/kg
516
780
836
15.4 J
20.1 J
18.9 J
657
15.4 J
7.21 J
78.6 J
PCB-22
38444-85-8
ng/kg
1020
4860
6220
50.9 J
146
426
5020
82.0 J
26.3 J
410
PCB-23
55720-44-0
ng/kg
6.06 J
9.62 J
24.2
1.44 U
1.41 U
1.37 U
16.6 J
1.39 UJ
1.42 U
1.39 U
PCB-24
H 55702-45-9
ng/kg
20.6 J
99.1
174
2.55 U
2.50 U
2.42 U
39.1
2.46 UJ
2.52 U
2.47 U
PCB-25
J 55712-37-3
ng/kg
462
2470
6090
30.5
102
310
5490
40.1 J
9.64 J
60.3
PCB-26/29
26-29
ng/kg
734
4880
7720
75.3
225
524
8270
107 J
28.4 J
263
PCB-27
38444-76-7
ng/kg
329
1070
3950
12.1 J
15.7 J
7.56 J
1160
9.96 J
3.06 U
67.2
PCB-31
16606-02-3
ng/kg
2200
12200
19100
117.T
268
166
8750
166 J
50.9 J
610
PCB-32
38444-77-8
ng/kg
1900
6440
15700
59.9
138
140
8070
63.7 J
14.6 UX
711
PCB-34
37680-68-5
ng/kg
120
219
517
4.05 J
12.0 UX
47.7
534
3.99 J
1.75 U
80.8
PCB-35
37680-69-6
ng/kg
2.40 U
2.51 U
2.41 U
2.54 U
2.50 U
2.42 U
2.35 U
2.45 UJ
2.51 U
2.46 U
PCB-36
38444-87-0
ng/kg
2.04 U
2.14 U
2.05 U
2.17 U
2.12 U
2.06 U
2.00 U
2.09 UJ
2.14 U
2.09 U
PCB-37
38444-90-5
ng/kg
153
121
320
5.76 J
9.27 J
5.53 J
732
3.38 J
3.52 J
8.44 UX
PCB-38
J 53555-66-1
ng/kg
9.24 J
13.5 J
17.8 J
1.76 U
1.73 U
4.94 J
25.2
1.70 UJ
1.74 U
9.17 J
PCB-39
38444-88-1
ng/kg
20.4 J
15.6 UX
56.9
2.49 U
2.44 U
2.36 U
22.1 J
2.40 UJ
2.45 U
15.1 J
PCB-40/41/71
J 40-41-71
ng/kg
13300
7510
14800
132 J
328
657
7340
138 J
41.5 J
4890
PCB-42
36559-22-5
ng/kg
7760
10000
11700
157
531
1830
8760
167 J
41.4 UX
7070
PCB-43/73
H43-73
ng/kg
601
328
1050
13.2 J
24.6 J
146
901
18.5 J
5.56 U
416
PCB-44/47/65
J 44-57-65
ng/kg
35800
48200
44800
718
2590
12400
53200
681 J
204
32100
PCB-45/51
J45-51
ng/kg
1210
2340
5440
39.5 J
66.0 J
160
2290
16.0 J
7.19 J
1030
PCB-46
H 41464-47-5
ng/kg
121
412
1110
4.63 J
3.78 U
3.66 U
86.1
3.72 UJ
3.80 U
66.0
PCB-48
70362-47-9
ng/kg
1900
1500
3550
27.8 J
62.6
95.8
1570
34.0 J
10.8 J
1280
PCB-49/69
49-69
ng/kg
24300
30500
32500
595
2030
9170
38200
509 J
142
22400
PCB-50/53
J 50-53
ng/kg
773
1190
4050
32.1 J
49.4 J
130
2470
17.1 J
5.90 J
549
PCB-52
35693-99-3
ng/kg
5620
6650
35400
843
2020
9250
44800
478 J
175
2610
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
13/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM27-FF-42
ISM27-FF-43
ISM27-FF-44
ISM29-FF-45
ISM29-FF-46
ISM29-FF-47
ISM29-FF-48
ISM29-FF-49
ISM29-FF-50
ISM29-FF-51
Location:
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
<
Species:
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Bluegill
White Sucker
Length (cm):
32.1
33.5
32.4
16.1
23
19.8
22.1
16.8
15.1
30.6
Weight (g):
386.2
366.1
413.9
104
336.5
195.7
287.8
99.2
63.2
309.2
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227354002-R
40227354003-R
40227354004-R
40227354005-R
40227354006-R
40227354007-R
40227354008-R
40227354009-R
40227354010
40227354011-R
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
9.43 J
34.6 J
133
2.41 U
2.36 U
2.28 U
19.5 J
2.32 UJ
2.37 U
2.52 J
PCB-55
74338-24-2
ng/kg
55.5
131
280
4.37 J
15.3 J
25.4 UX
231
7.84 UJX
3.97 U
45.9 UX
PCB-56
41464-43-1
ng/kg
3790
8480
7930
110
419
959
8620
118 J
40.2 J
4210
PCB-57
70424-67-8
ng/kg
145
336
388
3.52 J
20.0 J
155
593
4.71 J
2.48 U
187
PCB-58
41464-49-7
ng/kg
221
284
194
3.39 UX
15.2 J
74.0
294
3.58 UJX
2.84 U
193
PCB-59/62/75
59-62-75
ng/kg
3340
3930
4480
65.7 J
228
1340
5510
64.8 J
18.4 J
2920
PCB-60
33025-41-1
ng/kg
10700
11600
7300
139
618
2710
10700
175 J
56.6
8420
PCB-61/70/74/76
61-70-74-76
ng/kg
50200
57100
40600
754
2890
11400
44000
889 J
322
43500
PCB-63
74472-34-7
ng/kg
6550
5530
3480
67.6
321
1670
5020
80.2 J
25.7 J
4440
PCB-64
52663-58-8
ng/kg
15400
20200
19300
339
1110
5620
20000
263 J
73.1
13800
PCB-66
32598-10-0
ng/kg
47400
47800
30300
693
2760
12000
45500
678 J
242
36400
PCB-67
73575-53-8
ng/kg
80.3
208
666
11.2 J
41.7 J
109
1260
11.5 J
3.76 J
49.9
PCB-68
73575-52-7
ng/kg
1200
1070
606
13.8 J
64.3
349
1070
17.3 J
5.90 J
896
PCB-72
41464-42-0
ng/kg
1200
1320
726
20.8 J
81.9
374
1130
25.1 J
7.65 UX
1010
PCB-77
32598-13-3
ng/kg
277
555
1130
30.3 J
81.7
241
1990
19.4 J
8.75 J
404
PCB-78
70362-49-1
ng/kg
3.52 U
3.68 U
3.54 U
3.74 U
3.66 U
3.55 U
3.45 U
3.60 UJ
3.69 U
3.61 U
PCB-79
41464-48-6
ng/kg
509
288
209
10.8 J
37.0 J
41.8 J
179
7.33 UJX
3.49 UX
310
PCB-80
33284-52-5
ng/kg
2.58 U
2.69 U
2.59 U
2.73 U
2.68 U
2.59 U
2.52 U
2.64 UJ
2.70 U
2.64 U
PCB-81
70362-50-4
ng/kg
170
154
105
2.60 UX
10.7 UX
32.9 J
165
2.42 UJ
2.47 U
129
PCB-82
52663-62-4
ng/kg
5630
3380
2570
132
332
956
2160
72.3 J
27.8 J
3970
PCB-83
60145-20-2
ng/kg
1740
1610
1430
110
251
828
1900
33.6 J
15.3 J
1660
PCB-84
52663-60-2
ng/kg
2340
2130
3210
225
405
934
3460
59.7 J
29.5 J
2410
PCB-85/116/117
85-116-117
ng/kg
23300
11600
6650
491
1370
4120
10100
334 J
192
14000
PCB-86/87/97/108/119/125
868797108119125
ng/kg
35600
18600
13800
1100
2880
5830
16100
637 J
313
23100
PCB-88/91
88-91
ng/kg
7120
4730
4340
280
661
2300
5560
113 J
52.9 J
5870
PCB-89
73575-57-2
ng/kg
419
277
375
3.56 J
3.40 J
2.56 UX
21.5 J
4.54 J
2.27 U
282
PCB-90/101/113
90-101-113
ng/kg
43200
20300
18600
2610
5410
13400
26600
1240 J
748
29200
PCB-92
52663-61-3
ng/kg
4780
2320
3380
527
1030
2760
5770
252 J
174
3830
PCB-93/98/100/102
9398100102
ng/kg
2010
1310
1630
48.1 J
88.3 J
413
1260
34.6 J
16.8 J
1540
PCB-94
73575-55-0
ng/kg
139
61.6
158
2.42 U
3.75 UX
7.97 J
70.9
2.39 UJX
2.38 U
127
PCB-95
38379-99-6
ng/kg
5730
4510
8270
1110
1960
4520
12600
335 J
195
5750
PCB-96
73575-54-9
ng/kg
87.0
107
174
4.31 U
4.69 J
11.3 J
70.5
4.16 UJ
4.25 U
93.5
PCB-99
38380-01-7
ng/kg
49200
23900
13800
1370
3350
9720
21000
823 J
496
30500
PCB-103
60145-21-3
ng/kg
250
191
203
27.3 J
51.6
171
384
9.62 UJX
5.33 J
227
PCB-104
56558-16-8
ng/kg
2.74 U
2.86 U
3.93 J
2.90 U
2.85 U
2.75 U
2.68 U
2.80 UJ
2.86 U
2.80 U
PCB-105
32598-14-4
ng/kg
21700
10800
6320
537
1590
4860
11900
339 J
209
13500
PCB-106
70424-69-0
ng/kg
2.04 U
2.14 U
2.05 U
2.17 U
2.12 U
2.06 U
2.00 U
2.09 UJ
2.14 U
2.09 U
PCB-107/124
107-124
ng/kg
741
767
529
36.9 J
88.2 J
171
481
38.1 J
26.7 J
717
PCB-109
74472-35-8
ng/kg
7670
3070
1840
174
478
1220
2490
102 J
65.2
4080
PCB-110/115
110-115
ng/kg
41000
23500
18200
2340
4560
12500
24900
858 J
463
27800
PCB-111
39635-32-0
ng/kg
94.7
37.7 J
21.7 J
2.66 UX
7.09 UX
17.0 J
33.0 J
2.55 UJ
2.61 U
48.4
PCB-112
74472-36-9
ng/kg
303
109
94.7
5.88 J
21.0 J
78.6
201
4.86 J
2.62 U
233
PCB-114
74472-37-0
ng/kg
3600
1440
772
32.7 J
154
470
1190
27.1 J
15.6 J
1830
PCB-118
31508-00-6
ng/kg
76800
32900
17700
1750
4590
13100
27700
1020 J
674
44800
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
14/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM27-FF-42
ISM27-FF-43
ISM27-FF-44
ISM29-FF-45
ISM29-FF-46
ISM29-FF-47
ISM29-FF-48
ISM29-FF-49
ISM29-FF-50
ISM29-FF-51
Location:
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
<
Species:
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Bluegill
White Sucker
Length (cm):
32.1
33.5
32.4
16.1
23
19.8
22.1
16.8
15.1
30.6
Weight (g):
386.2
366.1
413.9
104
336.5
195.7
287.8
99.2
63.2
309.2
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227354002-R
40227354003-R
40227354004-R
40227354005-R
40227354006-R
40227354007-R
40227354008-R
40227354009-R
40227354010
40227354011-R
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
456
185
105
16.0 J
32.2 J
84.6
149
9.85 J
6.88 J
258
PCB-121
56558-18-0
ng/kg
25.4 J
12.5 UX
7.88 J
2.53 U
2.49 U
5.84 J
12.1 J
2.44 UJ
2.50 U
16.2 J
PCB-122
76842-07-4
ng/kg
270
303
214
12.0 J
26.3 UX
53.0
265
8.83 UJX
6.41 UX
299
PCB-123
65510-44-3
ng/kg
1770
951
532
38.5 J
125
300
820
26.8 J
14.4 J
1130
PCB-126
57465-28-8
ng/kg
54.2
36.1 J
31.2 J
7.26 J
11.1 J
22.5 J
73.9
3.55 UJ
3.63 U
47.2 J
PCB-127
39635-33-1
ng/kg
21.2 J
14.9 J
15.9 J
6.35 J
13.3 J
14.4 J
17.0 J
2.60 UJX
2.64 UX
35.7 J
PCB-128/166
128-166
ng/kg
5290
1810
1300
617
1030
1550
1560
309 J
293
3290
PCB-129/138/163
129-138-163
ng/kg
40900
13600
10700
5410
8680
11200
10400
2340 J
2360
24900
PCB-130
52663-66-8
ng/kg
2500
919
686
319
562
742
790
163 J
138
1640
PCB-131
61798-70-7
ng/kg
328
84.1
94.0
29.6 J
51.6
58.7
73.3
14.4 J
6.01 UX
210
PCB-132
38380-05-1
ng/kg
3340
1750
1890
822
1190
1680
1670
245 J
194
3190
PCB-133
35694-04-3
ng/kg
679
270
179
103
175
241
254
51.5 J
51.4
467
PCB-134/143
^134-143
ng/kg
571
310
332
157
253
387
443
57.1 J
42.3 J
565
PCB-135/151
^135-151
ng/kg
2510
1640
1690
1120
1650
2360
2180
378 J
305
2970
PCB-136
38411-22-2
ng/kg
505
355
398
228
402
535
544
55.3 J
30.9 J
606
PCB-137
35694-06-5
ng/kg
2930
972
607
228
452
548
690
103 J
113
1500
PCB-139/140
^139-140
ng/kg
930
314
230
82.1 J
134
216
232
44.3 J
38.4 J
581
PCB-141
52712-04-6
ng/kg
3080
1230
1230
717
1240
1650
1360
318 J
291
2350
PCB-142
41411-61-4
ng/kg
20.3 J
1.95 U
3.82 J
1.98 U
1.94 U
1.88 U
3.10 UX
1.91 UJ
1.95 U
9.95 UX
PCB-144
68194-14-9
ng/kg
670
297
270
154
247
352
318
62.9 J
39.1 J
571
PCB-145
74472-40-5
ng/kg
5.92 UX
3.53 J
4.69 J
1.97 U
1.93 U
1.87 U
1.82 U
1.90 UJ
1.94 U
6.88 J
PCB-146
51908-16-8
ng/kg
7020
2380
1780
929
1600
2110
1930
444 J
468
4480
PCB-147/149
^147-149
ng/kg
10100
5040
5150
2960
4960
6720
6520
1080 J
845
9310
PCB-148
74472-41-6
ng/kg
53.0
21.5 UX
16.3 UX
7.79 J
9.95 J
19.7 J
18.7 UX
3.88 UJX
4.65 J
39.6 J
PCB-150
68194-08-1
ng/kg
19.9 J
8.61 J
10.0 J
5.01 J
6.49 J
12.0 J
14.2 J
1.56 J
1.54 U
17.3 UX
PCB-152
68194-09-2
ng/kg
10.1 J
7.62 J
7.49 J
1.84 U
1.80 U
4.93 UX
8.38 J
1.77 UJ
1.81 U
11.5 J
PCB-153/168
153-168
ng/kg
34900
11500
8670
4660
7570
9890
8030
2260 J
2180
23200
PCB-154
60145-22-4
ng/kg
313
163
111
59.4
94.5
160
177
33.0 J
25.9 J
266
PCB-155
33979-03-2
ng/kg
4.85 J
2.62 J
3.39 J
2.85 J
2.80 UX
4.55 J
2.53 J
2.73 J
1.91 J
5.96 J
PCB-156/157
^156-157
ng/kg
4120
1300
878
351
639
980
1230
159 J
169
2510
PCB-158
74472-42-7
ng/kg
3810
1180
913
406
640
906
882
192 J
192
2310
PCB-159
39635-35-3
ng/kg
24.8 J
14.0 J
27.1 J
21.2 J
39.5 J
46.3 J
31.4 J
7.41 J
3.87 UX
44.6 J
PCB-160
41411-62-5
ng/kg
27.4 J
5.73 UX
4.83 UX
OU
OU
OU
OU
OUT
OU
8.18 UX
PCB-161
74472-43-8
ng/kg
1.49 U
1.56 U
1.50 U
1.58 U
1.55 U
1.50 U
1.46 U
1.52 UJ
1.56 U
1.53 U
PCB-162
39635-34-2
ng/kg
167
62.0
40.6 J
19.3 J
32.2 J
48.7
49.3
11.8 J
9.36 J
120
PCB-164
74472-45-0
ng/kg
717
390
421
275
463
632
530
118 J
83.8
774
PCB-165
74472-46-1
ng/kg
44.0 J
14.3 J
9.05 J
2.35 UX
3.19 J
8.46 J
14.6 UX
2.14 UJ
2.19 U
22.0 J
PCB-167
52663-72-6
ng/kg
1910
627
421
169
347
458
435
93.7 J
96.0
1150
PCB-169
32774-16-6
ng/kg
13.1 UX
2.56 U.T
3.68 UX
3.69 UJX
5.97 UJX
3.88 UX
2.39 U.T
4.20 UJX
4.00 UX
7.87 UX
PCB-170
35065-30-6
ng/kg
4950
1530
1160
724
1160
1610
1000
361 J
419
3290
PCB-171/173
^Tl71-173
ng/kg
1410
435
387
244
356
501
304
123 J
126
1030
PCB-172
52663-74-8
ng/kg
1160
335
236
166
285
433
279
92.0 J
106
757
PCB-174
38411-25-5
ng/kg
971
536
713
560
1120
1410
883
236 J
195
1280
PCB-175
40186-70-7
ng/kg
217
70.9
57.3
39.0 J
58.6
78.6
48.8
19.7 J
20.1 J
166
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
15/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM27-FF-42
ISM27-FF-43
ISM27-FF-44
ISM29-FF-45
ISM29-FF-46
ISM29-FF-47
ISM29-FF-48
ISM29-FF-49
ISM29-FF-50
ISM29-FF-51
Location:
ISM-M1-27
ISM-M1-27
ISM-M1-27
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
ISM-29
<
Species:
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Bluegill
Bluegill
White Sucker
Length (cm):
32.1
33.5
32.4
16.1
23
19.8
22.1
16.8
15.1
30.6
Weight (g):
386.2
366.1
413.9
104
336.5
195.7
287.8
99.2
63.2
309.2
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/19/2021
Lab Sample ID:
40227354002-R
40227354003-R
40227354004-R
40227354005-R
40227354006-R
40227354007-R
40227354008-R
40227354009-R
40227354010
40227354011-R
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
233
96.9
107
80.6
145
188
105
28.1 J
17.0 J
240
PCB-177
52663-70-4
ng/kg
2380
888
808
574
920
1290
813
275 J
270
2050
PCB-178
52663-67-9
ng/kg
908
385
277
254
378
516
356
118 J
131
781
PCB-179
52663-64-6
ng/kg
353
223
219
209
324
449
271
60.2 J
41.3 J
493
PCB-180/193
180-193
ng/kg
14200
4140
3210
1940
3550
4960
2930
920 J
1210
8950
PCB-181
74472-47-2
ng/kg
82.5
21.7 J
17.4 J
10.3 UX
19.7 J
25.1 J
19.7 J
5.42 J
4.48 UX
53.2
PCB-182
60145-23-5
ng/kg
39.7 J
7.74 J
7.66 J
6.50 J
11.3 J
19.9 J
13.8 J
2.98 UJX
3.69 UX
29.6 J
PCB-183/185
183-185
ng/kg
3780
1200
1040
678
1040
1420
843
326 J
351
2830
PCB-184
74472-48-3
ng/kg
12.0 J
4.32 J
5.24 J
3.18 UX
3.71 J
6.84 J
3.79 J
2.78 UJX
2.80 J
10.4 J
PCB-186
74472-49-4
ng/kg
2.18 U
2.28 U
2.20 U
2.32 U
2.27 U
2.20 U
2.14 U
2.23 UJ
2.28 U
2.24 U
PCB-187
52663-68-0
ng/kg
8640
2670
2680
1970
3320
4570
2960
865 J
1230
6050
PCB-188
74487-85-7
ng/kg
10.3 J
3.13 U
3.02 U
3.18 U
3.12 U
5.92 J
3.95 J
3.07 UJ
3.14 U
7.38 J
PCB-189
39635-31-9
ng/kg
241
72.1
54.1
32.8 J
61.4
79.3
53.9
14.1 J
18.7 J
171
PCB-190
41411-64-7
ng/kg
511
150
112
65.0
109
228
116
28.3 J
51.0
341
PCB-191
74472-50-7
ng/kg
236
67.9
58.5
36.3 J
60.3
77.0
49.0
19.7 J
20.3 J
165
PCB-192
74472-51-8
ng/kg
2.67 U
2.79 U
2.69 U
2.83 U
2.78 U
2.69 U
2.61 U
2.73 UJ
2.79 U
2.74 U
PCB-194
35694-08-7
ng/kg
2730
691
546
350
560
778
513
174 J
222
1970
PCB-195
52663-78-2
ng/kg
927
236
203
129
189
273
184
56.6 J
70.8 J
679
PCB-196
42740-50-1
ng/kg
1210
292
234
174
258
394
242
89.0 J
115
824
PCB-197/200
197-200
ng/kg
157
54.7 J
47.8 J
37.5 J
63.8 J
109 J
62.9 J
14.6 UJX
19.5 J
145
PCB-198/199
198-199
ng/kg
2940
521
512
381
638
1200
750
175 J
348
1530
PCB-201
40186-71-8
ng/kg
299
86.2
65.9 J
55.5 J
77.7
122
78.5
26.8 J
34.2 J
229
PCB-202
2136-99-4
ng/kg
450
154
111
117
181
263
164
57.4 J
69.9 J
375
PCB-203
52663-76-0
ng/kg
2230
565
478
326
469
668
433
157 J
184
1580
PCB-204
74472-52-9
ng/kg
4.02 J
3.88 U
3.73 U
3.94 U
3.86 U
3.74 U
3.63 U
3.80 UJ
3.88 U
3.80 U
PCB-205
74472-53-0
ng/kg
157
37.8 J
36.9 J
20.0 J
32.0 J
40.3 J
26.6 J
11.2 J
11.0 UX
110
PCB-206
40186-72-9
ng/kg
1830
387
305
190
255
366
222
85.3 J
126
1230
PCB-207
52663-79-3
ng/kg
172
41.9 J
30.0 J
21.3 UX
33.5 J
45.0 J
28.9 J
10.3 J
14.0 UX
111
PCB-208
52663-77-1
ng/kg
398
97.4
64.3 J
55.9 UX
78.3
106
66.8 J
22.1 UJX
34.8 J
282
PCB-209
ARC-209
ng/kg
467
115
61.8 J
61.8 J
55.7 J
107
69.3
27.8 J
47.3 J
345
Total PCB Congeners
--
ng/kg
784135.9 J
594822.96 J
630635.75 J
47977.41 J
96555.59 J
221859.31 J
642814.88 J
24689.12 J
18847.86 J
542916.61 J
Lipid Content
ARC-LIPID
%
0.25
0.50
1.09
0.37
0.48
0.26
0.34
0.36
0.27
0.64
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
16/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM29-FF-52
ISM29-FF-53
ISM29-FF-54
ISM29-FF-55
MR-FF-12
MR-FF-13
MR-FF-14
MR-FF-15
MR-FF-16
MR-FF-17
Location:
ISM-29
ISM-29
ISM-29
ISM-29
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Length (cm):
33.8
34.3
31.5
32.6
16.8
19.4
17.2
17.9
17.8
16.2
Weight (g):
434
483
322.5
505.4
102
180.1
120.9
145.3
118.7
99.7
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227354012-R
40227354013-R
40227354014-R
40227354015-R
40227352012
40227352013
40227352014
40227352015
40227352016
40227352017
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
8.55 J
63.0
10.1 J
7.41 UX
1460
1940
1440
1500
816
3540
PCB-2
2051-61-8
ng/kg
2.28 U
2.35 U
2.46 U
2.30 U
20.5 J
24.5
23.1 J
21.8 J
12.1 J
41.2
PCB-3
2051-62-9
ng/kg
3.59 U
3.70 U
3.87 U
3.63 U
423
571
426
412
263
1070
PCB-4
13029-08-8
ng/kg
25.9 UX
1760
29.0
686
8670
9570
8560
8130
4650
11400
PCB-5
116605-91-7
ng/kg
4.06 U
8.67 UX
4.38 U
6.81 UX
8.28 J
17.5 J
3.04 U
11.0 UX
9.65 UX
19.2 J
PCB-6
25569-80-6
ng/kg
7.64 UX
702
10.7 UX
566
1610
1680
1630
1530
1060
2950
PCB-7
33284-50-3
ng/kg
3.65 U
74.8 UX
3.94 U
65.6
190
207
163
177
159
798
PCB-8
34883-43-7
ng/kg
31.3
2950
43.9
1680
6280
5540
6520
6330
4240
17000
PCB-9
34883-39-1
ng/kg
2.37 U
135
2.56 U
100
253
248
234
229
165
570
PCB-10
J 33146-45-1
ng/kg
2.70 U
87.5
2.92 U
32.2
340
374
309
336
206
395
PCB-11
J 2050-67-1
ng/kg
85.8 U
88.7 U
92.7 U
86.8 U
124 J
119.T
142 J
97.9 U
96.8 U
111 J
PCB-12/13
112-13
ng/kg
4.54 U
18.6 UX
4.91 U
16.5 UX
202
237
188
161
122
409
PCB-14
34883-41-5
ng/kg
5.88 U
6.08 U
6.35 U
5.95 U
3.16 U
3.03 U
3.30 U
3.30 U
3.26 U
3.15 U
PCB-15
2050-68-2
ng/kg
2.72 U
86.7
2.94 U
18.7 J
4050
7710
2650
2570
1760
4920
PCB-16
38444-78-9
ng/kg
16.3 J
465
15.9 J
416
355
244
371
346
257
436
PCB-17
37680-66-3
ng/kg
684
9450
304
8080
7340
3980
7990
6520
5510
9650
PCB-18/30
118-30
ng/kg
87.7
949
53.5
1600
2740
1640
2600
2080
1420
2150
PCB-19
38444-73-4
ng/kg
16.1 J
1770
17.5 J
1150
2870
2320
2560
2720
1440
1470
PCB-20/28
20-28
ng/kg
10600
49500
3220
27900
27200
35600
39000
25100
23100
83100
PCB-21/33
J21-33
ng/kg
81.5 J
437
41.8 J
391
207
183
256
225
247
576
PCB-22
38444-85-8
ng/kg
458
5670
244
3670
3710
2800
5890
3830
3440
11000
PCB-23
55720-44-0
ng/kg
1.34 U
17.0 J
1.44 U
13.2 UX
11.5 UX
2.79 U
15.1 J
9.49 J
12.2 J
43.8
PCB-24
H 55702-45-9
ng/kg
2.72 J
60.6
2.56 U
61.0
42.3
30.0
49.4
48.1
38.5
46.9
PCB-25
J 55712-37-3
ng/kg
56.9
4970
65.5
2980
4150
5580
7490
4780
3550
15500
PCB-26/29
26-29
ng/kg
338
5060
340
5450
5150
6190
9230
5380
4740
17100
PCB-27
38444-76-7
ng/kg
90.5
1490
56.1
1700
1540
2030
1820
1470
1310
2770
PCB-31
16606-02-3
ng/kg
433
18800
604
11500
7470
7560
9590
6110
5290
43700
PCB-32
38444-77-8
ng/kg
827
10400
391
8740
7350
6970
8920
6510
5950
15900
PCB-34
37680-68-5
ng/kg
126
434
30.8
337
399
817
549
348
362
643
PCB-35
37680-69-6
ng/kg
2.36 U
2.44 U
2.55 U
2.39 U
3.09 U
2.96 U
3.22 U
3.22 U
3.18 U
5.50 J
PCB-36
38444-87-0
ng/kg
2.01 U
2.08 U
2.17 U
2.03 U
2.31 U
2.22 U
2.41 U
2.41 U
2.38 U
2.30 U
PCB-37
38444-90-5
ng/kg
16.9 J
392
5.99 UX
72.9
852
1330
999
713
652
1340
PCB-38
J 53555-66-1
ng/kg
11.8 UX
11.8 J
3.35 J
20.1 J
23.8 J
27.2
57.5
25.1
26.7
37.3
PCB-39
38444-88-1
ng/kg
25.5
21.8 J
4.08 J
18.7 UX
17.5 J
47.8
8.34 UX
24.1 J
24.4 J
99.2
PCB-40/41/71
J 40-41-71
ng/kg
7560
12100
2040
12000
8410
4610
9770
6400
8280
12200
PCB-42
36559-22-5
ng/kg
10800
13800
2220
11200
8760
4930
11000
7100
7920
9870
PCB-43/73
H43-73
ng/kg
784
630
110
830
946
947
744
671
841
1620
PCB-44/47/65
J 44-57-65
ng/kg
45700
59000
9090
37200
39700
56100
46100
30800
40000
66200
PCB-45/51
J45-51
ng/kg
1010
3660
276
2850
2610
1390
3110
2170
1930
2140
PCB-46
H 41464-47-5
ng/kg
61.2
490
40.2 J
531
221
127
211
191
136
175
PCB-48
70362-47-9
ng/kg
2490
1850
433
2100
1510
757
1890
1350
1660
2160
PCB-49/69
49-69
ng/kg
36500
46600
6650
31600
34500
32900
39700
24400
32300
45700
PCB-50/53
J 50-53
ng/kg
804
2570
224
2300
2720
1590
3450
2290
2110
2430
PCB-52
35693-99-3
ng/kg
30600
5580
4000
16700
39500
45700
46200
28700
36600
42700
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
17/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM29-FF-52
ISM29-FF-53
ISM29-FF-54
ISM29-FF-55
MR-FF-12
MR-FF-13
MR-FF-14
MR-FF-15
MR-FF-16
MR-FF-17
Location:
ISM-29
ISM-29
ISM-29
ISM-29
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Length (cm):
33.8
34.3
31.5
32.6
16.8
19.4
17.2
17.9
17.8
16.2
Weight (g):
434
483
322.5
505.4
102
180.1
120.9
145.3
118.7
99.7
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227354012-R
40227354013-R
40227354014-R
40227354015-R
40227352012
40227352013
40227352014
40227352015
40227352016
40227352017
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
2.23 U
52.4
2.41 U
30.8 J
49.1
38.3 J
29.3 J
37.7 J
16.5 J
43.6 J
PCB-55
74338-24-2
ng/kg
48.3 UX
323
30.3 J
209
164
379 UX
294
189
219
573
PCB-56
41464-43-1
ng/kg
5630
13000
1520
6960
4840
8580
8420
5120
5980
8890
PCB-57
70424-67-8
ng/kg
202
730
75.7
399
358
625
571
360
455
892
PCB-58
41464-49-7
ng/kg
270
365
58.7
205
182
278
235
149
230
295
PCB-59/62/75
59-62-75
ng/kg
4350
5410
823
3790
4390
4180
5470
3510
4550
6290
PCB-60
33025-41-1
ng/kg
11000
11300
2430
5840
6660
10100
8040
5140
7540
13400
PCB-61/70/74/76
61-70-74-76
ng/kg
55800
74700
12400
36400
29300
43900
34900
22000
32900
72900
PCB-63
74472-34-7
ng/kg
5950
6960
1230
3270
3400
4310
3850
2510
4150
6240
PCB-64
52663-58-8
ng/kg
21100
26600
4340
16700
19800
12700
24100
14400
19300
17300
PCB-66
32598-10-0
ng/kg
51600
51200
10400
26800
31600
47600
36600
22900
36100
61200
PCB-67
73575-53-8
ng/kg
54.1
850
25.5 J
485
664
1280
1140
759
798
2000
PCB-68
73575-52-7
ng/kg
1270
1270
243
682
750
1130
782
533
900
1340
PCB-72
41464-42-0
ng/kg
1540
1210
327
885
995
1610
1010
677
1030
1780
PCB-77
32598-13-3
ng/kg
347
1130
168
661
1230
2350
1860
1200
1410
2820
PCB-78
70362-49-1
ng/kg
3.47 U
3.58 U
3.75 U
3.51 U
2.48 U
2.38 U
2.59 U
2.59 U
2.56 U
2.47 U
PCB-79
41464-48-6
ng/kg
351
286
93.3
177
119
176
166
125
218
316
PCB-80
33284-52-5
ng/kg
2.53 U
2.62 U
2.74 U
2.57 U
2.08 U
1.99 U
2.17 U
2.17 U
2.14 U
2.07 U
PCB-81
70362-50-4
ng/kg
171
155
37.5 J
67.7
100
170
134
87.6
130
153
PCB-82
52663-62-4
ng/kg
4880
3950
1250
2730
2060
1780
2460
1560
2880
1420
PCB-83
60145-20-2
ng/kg
2570
2000
585
1440
1390
1810
1680
1140
1850
801
PCB-84
52663-60-2
ng/kg
3980
2860
750
3080
2800
2220
4130
2730
3350
1290
PCB-85/116/117
85-116-117
ng/kg
16500
12900
4090
6870
6700
8890
7940
5180
10400
11700
PCB-86/87/97/108/119/125
868797108119125
ng/kg
30000
21300
7040
13900
10500
13700
14000
9400
16800
17400
PCB-88/91
88-91
ng/kg
8990
6000
1500
4300
4880
4440
5850
3790
6440
4520
PCB-89
73575-57-2
ng/kg
384
362
87.0
333
44.0 J
23.0 J
27.9 J
34.7 J
16.3 J
87.5
PCB-90/101/113
90-101-113
ng/kg
44100
24000
11200
17300
17600
24500
20500
13600
27200
26600
PCB-92
52663-61-3
ng/kg
7880
3530
1660
3640
4230
5210
4900
3200
6160
6650
PCB-93/98/100/102
9398100102
ng/kg
2400
2020
404
1480
1200
768
1550
1080
1380
1540
PCB-94
73575-55-0
ng/kg
201
164
30.6 J
136
73.1
65.8
95.6
73.8
52.4
98.0
PCB-95
38379-99-6
ng/kg
12900
6090
2410
7250
9620
10700
13300
8840
12100
8690
PCB-96
73575-54-9
ng/kg
114
149
21.8 J
117
82.0
45.3 J
109
80.5
50.5
48.4
PCB-99
38380-01-7
ng/kg
34800
28300
9070
13800
14400
18600
16000
10500
22200
23900
PCB-103
60145-21-3
ng/kg
396
313
72.8
229
308
293
364
242
418
331
PCB-104
56558-16-8
ng/kg
2.69 U
2.78 U
2.91 U
2.72 U
1.11 U
1.07 U
1.16 U
1.16 U
1.15 U
3.98 J
PCB-105
32598-14-4
ng/kg
16600
11100
3660
5770
7730
11100
8690
5340
11600
12900
PCB-106
70424-69-0
ng/kg
2.01 U
2.08 U
2.17 U
2.03 U
21.6 J
29.7 J
2.28 U
2.28 U
2.25 U
44.4 J
PCB-107/124
107-124
ng/kg
1170
943
242
464
295
558
376
255
393
836
PCB-109
74472-35-8
ng/kg
4310
3500
1170
1590
1810
2290
1770
1110
2480
2610
PCB-110/115
110-115
ng/kg
42700
24900
9350
16700
21300
21200
26200
16400
32700
17500
PCB-111
39635-32-0
ng/kg
55.4
46.3 J
17.6 J
24.7 J
24.5 J
24.9 UX
27.8 J
20.8 J
38.2 J
34.6 J
PCB-112
74472-36-9
ng/kg
207
192
37.4 J
93.1
158
205
2.78 U
147
242
402
PCB-114
74472-37-0
ng/kg
1900
1340
476
599
778
1100
753
488
1120
1170
PCB-118
31508-00-6
ng/kg
44300
34200
13000
15600
17900
25600
19800
12300
28200
28700
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
18/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM29-FF-52
ISM29-FF-53
ISM29-FF-54
ISM29-FF-55
MR-FF-12
MR-FF-13
MR-FF-14
MR-FF-15
MR-FF-16
MR-FF-17
Location:
ISM-29
ISM-29
ISM-29
ISM-29
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Length (cm):
33.8
34.3
31.5
32.6
16.8
19.4
17.2
17.9
17.8
16.2
Weight (g):
434
483
322.5
505.4
102
180.1
120.9
145.3
118.7
99.7
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227354012-R
40227354013-R
40227354014-R
40227354015-R
40227352012
40227352013
40227352014
40227352015
40227352016
40227352017
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
265
226
90.3
104
103
147
115
80.8
164
153
PCB-121
56558-18-0
ng/kg
19.3 J
12.1 J
5.91 J
8.14 J
7.94 J
8.55 J
10.00 J
6.88 J
11.6 J
12.8 J
PCB-122
76842-07-4
ng/kg
365
367
72.2
188
131
301
145
114
163
305
PCB-123
65510-44-3
ng/kg
1280
780
286
408
523
751
519
387
823
881
PCB-126
57465-28-8
ng/kg
56.0
36.9 J
14.3 J
21.1 UX
37.6 J
71.9
50.7
35.8 J
66.0
47.7
PCB-127
39635-33-1
ng/kg
38.1 J
20.6 J
22.4 J
13.9 UX
14.9 J
22.9 J
16.3 J
10.0 J
25.1 J
28.3 J
PCB-128/166
128-166
ng/kg
3470
2420
2050
1600
959
1380
1040
677
1560
1680
PCB-129/138/163
129-138-163
ng/kg
28900
20700
18100
11900
6750
9930
7650
4930
11700
11400
PCB-130
52663-66-8
ng/kg
1830
1390
1030
787
491
684
509
325
782
778
PCB-131
61798-70-7
ng/kg
249
145
127
136
61.7
65.0
63.5
40.7 J
81.7
46.0 J
PCB-132
38380-05-1
ng/kg
4360
2290
1700
2080
1550
1950
1420
916
1870
1410
PCB-133
35694-04-3
ng/kg
550
409
305
240
167
247
151
94.8
237
229
PCB-134/143
^134-143
ng/kg
746
483
300
409
324
451
377
237
473
368
PCB-135/151
^135-151
ng/kg
3950
2500
1750
2280
1420
2110
1760
1110
2050
1960
PCB-136
38411-22-2
ng/kg
839
498
305
483
383
559
434
315
478
263
PCB-137
35694-06-5
ng/kg
1510
1050
821
611
403
582
390
276
617
720
PCB-139/140
^139-140
ng/kg
615
452
303
258
166
201
166
107
264
269
PCB-141
52712-04-6
ng/kg
3380
1470
1900
1310
810
1320
759
535
1240
1310
PCB-142
41411-61-4
ng/kg
12.1 J
1.90 U
1.98 U
1.86 U
3.96 J
2.27 U
3.05 UX
2.47 U
5.26 J
3.27 J
PCB-144
68194-14-9
ng/kg
731
403
373
338
203
274
218
153
305
294
PCB-145
74472-40-5
ng/kg
6.95 J
5.45 UX
1.97 U
3.22 UX
2.96 U
2.84 U
3.09 U
3.09 U
3.05 U
4.03 J
PCB-146
51908-16-8
ng/kg
5170
3690
3180
2110
1210
1740
1290
808
1910
1900
PCB-147/149
^147-149
ng/kg
13900
7160
5850
6160
4200
6240
5030
3210
6650
4540
PCB-148
74472-41-6
ng/kg
49.3
31.5 J
20.1 J
18.4 UX
15.5 J
17.5 J
19.9 J
11.4 J
24.2 J
28.1 J
PCB-150
68194-08-1
ng/kg
27.1 J
13.9 UX
7.91 J
13.1 J
9.62 J
12.5 J
11.7 J
7.36 J
14.4 J
6.41 J
PCB-152
68194-09-2
ng/kg
13.9 J
11.6 J
3.14 J
9.10.T
7.78 UX
6.28 J
8.61 J
5.87 J
9.88 J
8.75 J
PCB-153/168
153-168
ng/kg
26500
18300
18500
10500
4990
6900
5400
3490
8240
8060
PCB-154
60145-22-4
ng/kg
331
243
142
153
120
153
141
88.9
203
205
PCB-155
33979-03-2
ng/kg
6.71 J
4.81 UX
3.81 UX
3.32 UX
1.61 U
2.69 J
1.68 U
1.68 U
1.87 J
2.12 UX
PCB-156/157
^156-157
ng/kg
2520
1800
1340
943
789
1130
804
520
1250
1150
PCB-158
74472-42-7
ng/kg
2390
1830
1550
995
553
733
568
375
894
941
PCB-159
39635-35-3
ng/kg
55.3
36.5 J
35.4 J
26.0 J
14.9 J
35.0 J
3.01 U
12.3 J
26.8 J
26.9 J
PCB-160
41411-62-5
ng/kg
12.2 J
8.38 J
OU
OU
5.45 J
6.79 UX
2.10 U
2.10 U
6.76 J
2.00 U
PCB-161
74472-43-8
ng/kg
1.47 U
1.51 U
1.58 U
1.48 U
2.97 U
2.85 U
3.10 U
3.10 U
3.06 U
2.96 U
PCB-162
39635-34-2
ng/kg
120
79.4
79.1
43.6 J
33.1 J
49.0
32.5 J
21.7 J
43.5 J
48.0
PCB-164
74472-45-0
ng/kg
1100
458
492
448
326
525
343
224
518
453
PCB-165
74472-46-1
ng/kg
26.9 J
18.8 J
10.5 J
9.26 J
9.28 J
12.4 J
9.63 UX
5.59 J
15.0 J
11.3 J
PCB-167
52663-72-6
ng/kg
1210
849
829
440
272
440
302
194
445
436
PCB-169
32774-16-6
ng/kg
5.15 UX
5.57 UJX
4.28 UX
3.59 UJX
3.90 U
3.74 U
6.03 UX
4.07 U
4.02 U
3.88 U
PCB-170
35065-30-6
ng/kg
3970
2590
3120
1330
705
943
608
439
1000
830
PCB-171/173
^Tl71-173
ng/kg
1210
837
1010
485
205
291
233
154
359
304
PCB-172
52663-74-8
ng/kg
839
580
774
321
173
283
184
123
269
246
PCB-174
38411-25-5
ng/kg
1770
878
1000
765
454
978
540
405
774
566
PCB-175
40186-70-7
ng/kg
196
134
154
74.6
32.8 J
45.4 J
38.4 J
24.1 J
56.7
51.5
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
19/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
ISM29-FF-52
ISM29-FF-53
ISM29-FF-54
ISM29-FF-55
MR-FF-12
MR-FF-13
MR-FF-14
MR-FF-15
MR-FF-16
MR-FF-17
Location:
ISM-29
ISM-29
ISM-29
ISM-29
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Rock Bass
Pumpkinseed
Length (cm):
33.8
34.3
31.5
32.6
16.8
19.4
17.2
17.9
17.8
16.2
Weight (g):
434
483
322.5
505.4
102
180.1
120.9
145.3
118.7
99.7
Sample Date:
5/19/2021
5/19/2021
5/19/2021
5/19/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227354012-R
40227354013-R
40227354014-R
40227354015-R
40227352012
40227352013
40227352014
40227352015
40227352016
40227352017
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
323
142
175
128
67.3
137
84.8
55.9
101
58.6
PCB-177
52663-70-4
ng/kg
2480
1750
1840
994
465
819
553
356
787
654
PCB-178
52663-67-9
ng/kg
936
705
658
410
211
353
262
160
357
308
PCB-179
52663-64-6
ng/kg
642
342
313
340
190
339
223
138
267
203
PCB-180/193
180-193
ng/kg
10700
6910
9520
3730
1840
2930
1780
1150
2580
2310
PCB-181
74472-47-2
ng/kg
61.2
32.8 J
40.9 J
22.9 J
12.1 J
19.7 J
12.5 J
8.13 J
19.6 J
13.6 UX
PCB-182
60145-23-5
ng/kg
37.6 J
22.4 J
25.7 J
15.1 J
9.37 J
15.2 J
8.01 J
6.60 J
16.5 J
12.4 J
PCB-183/185
183-185
ng/kg
3370
2160
2770
1240
541
836
621
403
880
844
PCB-184
74472-48-3
ng/kg
14.5 J
8.85 UX
9.90 J
5.68 J
1.76 U
4.16.T
3.31 J
1.91 J
2.95 UX
3.04 J
PCB-186
74472-49-4
ng/kg
2.15 U
2.22 U
2.32 U
2.17 U
1.53 U
1.47 U
1.60 U
1.60 U
1.58 U
1.53 U
PCB-187
52663-68-0
ng/kg
8380
5070
5690
3320
1680
2750
2590
1360
3060
2540
PCB-188
74487-85-7
ng/kg
10.3 J
6.28 J
5.46 J
4.02 J
2.72 J
4.77 J
2.90 J
1.94 U
4.72 J
3.28 UX
PCB-189
39635-31-9
ng/kg
185
128
156
63.4
31.8 J
55.7
38.2 J
23.7 J
46.9 J
44.8 J
PCB-190
41411-64-7
ng/kg
478
255
407
148
90.5
138
104
61.7
142
119
PCB-191
74472-50-7
ng/kg
177
116
161
63.4
32.0 J
55.7
32.8 J
24.0 J
50.3
44.8 J
PCB-192
74472-51-8
ng/kg
2.63 U
2.71 U
2.84 U
2.66 U
2.62 U
2.51 U
2.73 U
2.73 U
2.70 U
2.60 U
PCB-194
35694-08-7
ng/kg
1880
1340
1790
657
338
506
334
208
452
358
PCB-195
52663-78-2
ng/kg
712
477
649
257
130
207
129
82.5
191
144
PCB-196
42740-50-1
ng/kg
880
655
879
331
177
278
150
93.6
217
184
PCB-197/200
197-200
ng/kg
172
87.0 J
119 J
67.2 J
42.8 J
76.2 J
46.1 J
28.7 J
61.5 J
39.6 J
PCB-198/199
198-199
ng/kg
1790
1400
1830
762
553
896
530
282
673
553
PCB-201
40186-71-8
ng/kg
243
162
210
96.2
45.7 J
78.7
52.9 J
32.7 J
69.2 J
58.2 J
PCB-202
2136-99-4
ng/kg
436
290
306
177
108
180
122
72.5 J
171
120
PCB-203
52663-76-0
ng/kg
1660
1070
1480
600
328
465
334
195
415
360
PCB-204
74472-52-9
ng/kg
3.65 U
3.77 U
3.94 U
3.69 U
1.80 U
1.73 U
1.88 U
1.88 U
1.86 U
1.79 U
PCB-205
74472-53-0
ng/kg
111
76.2
102
41.5 J
17.5 J
26.1 J
22.8 J
12.4 J
25.4 J
20.0 J
PCB-206
40186-72-9
ng/kg
1050
870
1020
382
182
227
209
126
209
183
PCB-207
52663-79-3
ng/kg
110
77.2
97.9
41.5 J
18.0 UX
27.9 J
25.2 J
13.8 J
27.3 J
22.9 J
PCB-208
52663-77-1
ng/kg
279
189
247
96.7
54.2 J
74.1
62.6 J
37.0 J
69.7 J
54.7 J
PCB-209
ARC-209
ng/kg
256
215
206
87.6
65.6 J
65.0 J
68.3 J
49.2 J
70.4 J
61.5 J
Total PCB Congeners
--
ng/kg
743145.13 J
747398.76 J
231244.05 J
477581.8 J
500271.02 J
601949.45 J
599720.73 J
394369.23 J
563187.09 J
850970.18 J
Lipid Content
ARC-LIPID
%
0.46
1.12
0.41
1.49
0.40
0.50
0.26
0.30
0.18
0.78
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
20/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
MR-FF-18
MR-FF-19
MR-FF-20
MR-FF-21
MR-FF-22
Location:
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
38.7
37.2
31
35
40.8
Weight (g):
708
623.9
354.4
495.8
626.4
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352018
40227352019
40227352020
40227353001
40227353002
PCB Congeners
CAS Number
Units
PCB-1
J2051-60-7
ng/kg
2910
1710
4760
2600
1640
PCB-2
2051-61-8
ng/kg
19.5 J
12.7 J
25.8
13.2 J
14.2 J
PCB-3
2051-62-9
ng/kg
332
166
403
215
195
PCB-4
13029-08-8
ng/kg
15400
9800
26500
15100
10100
PCB-5
116605-91-7
ng/kg
32.4
17.2 UX
56.1
25.8
15.8 UX
PCB-6
25569-80-6
ng/kg
2450
1400
4270
2350
1390
PCB-7
33284-50-3
ng/kg
522
216
842
381
191
PCB-8
34883-43-7
ng/kg
9520
5430
16200
7870
5740
PCB-9
34883-39-1
ng/kg
393
233
690
386
239
PCB-10
J 33146-45-1
ng/kg
621
365
959
580
362
PCB-11
J 2050-67-1
ng/kg
94.3 U
94.6 U
94.1 U
97.2 U
95.8 U
PCB-12/13
112-13
ng/kg
135
73.7
198
104
89.8
PCB-14
34883-41-5
ng/kg
3.18 U
3.19 U
3.17 U
3.27 U
3.23 U
PCB-15
2050-68-2
ng/kg
2380
1360
3510
1760
1700
PCB-16
38444-78-9
ng/kg
792
451
1280
797
492
PCB-17
37680-66-3
ng/kg
12200
6770
20800
12100
8280
PCB-18/30
118-30
ng/kg
2720
1360
3520
4250
1370
PCB-19
38444-73-4
ng/kg
5180
3360
10100
5170
4240
PCB-20/28
20-28
ng/kg
34500
19300
49200
37200
20900
PCB-21/33
J21-33
ng/kg
566
255
771
531
300
PCB-22
38444-85-8
ng/kg
4480
2620
7230
4500
3000
PCB-23
55720-44-0
ng/kg
18.9 J
10.5 J
29.5
20.0 J
9.60 J
PCB-24
H 55702-45-9
ng/kg
78.5
45.2
169
80.4
45.2
PCB-25
J 55712-37-3
ng/kg
4210
2440
7010
3440
2730
PCB-26/29
26-29
ng/kg
4700
2830
8110
4900
3810
PCB-27
38444-76-7
ng/kg
2560
1620
4840
2590
1970
PCB-31
16606-02-3
ng/kg
12700
6780
21000
12900
10000
PCB-32
38444-77-8
ng/kg
9950
6480
18300
9570
7740
PCB-34
37680-68-5
ng/kg
455
225
649
422
262
PCB-35
37680-69-6
ng/kg
3.63 J
3.11 U
3.09 U
3.19 U
3.15 U
PCB-36
38444-87-0
ng/kg
2.32 U
2.33 U
2.32 U
2.39 U
2.36 U
PCB-37
38444-90-5
ng/kg
773
452
1260
806
503
PCB-38
J 53555-66-1
ng/kg
32.4
12.1 J
35.2
20.6 J
11.7 J
PCB-39
38444-88-1
ng/kg
42.4
26.2
81.1
39.2
26.6
PCB-40/41/71
J 40-41-71
ng/kg
13200
7070
18900
11900
8040
PCB-42
36559-22-5
ng/kg
11800
6210
13800
13300
6190
PCB-43/73
H43-73
ng/kg
1060
444
1520
1180
464
PCB-44/47/65
J 44-57-65
ng/kg
43600
23400
49500
54800
22700
PCB-45/51
J45-51
ng/kg
3510
2300
6690
4130
2980
PCB-46
H 41464-47-5
ng/kg
591
418
1290
729
513
PCB-48
70362-47-9
ng/kg
2430
1380
3130
2740
1480
PCB-49/69
49-69
ng/kg
38800
19000
41100
43500
18800
PCB-50/53
J 50-53
ng/kg
3040
1780
5780
3400
2230
PCB-52
35693-99-3
ng/kg
16100
19000
21700
38100
11600
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
21/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
MR-FF-18
MR-FF-19
MR-FF-20
MR-FF-21
MR-FF-22
Location:
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
38.7
37.2
31
35
40.8
Weight (g):
708
623.9
354.4
495.8
626.4
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352018
40227352019
40227352020
40227353001
40227353002
PCB Congeners
CAS Number
Units
PCB-54
15968-05-5
ng/kg
90.7
62.0
190
102
102
PCB-55
74338-24-2
ng/kg
289
164
375
294
203
PCB-56
41464-43-1
ng/kg
7940
4520
9600
8090
4450
PCB-57
70424-67-8
ng/kg
445
208
493
385
231
PCB-58
41464-49-7
ng/kg
232
126
275
273
124
PCB-59/62/75
59-62-75
ng/kg
4340
2490
4960
5260
2470
PCB-60
33025-41-1
ng/kg
7700
4810
8390
10200
4130
PCB-61/70/74/76
61-70-74-76
ng/kg
47700
25300
50000
57200
25300
PCB-63
74472-34-7
ng/kg
4820
2490
4660
6150
2210
PCB-64
52663-58-8
ng/kg
20500
12700
26800
26800
12300
PCB-66
32598-10-0
ng/kg
37800
21500
38700
47000
18000
PCB-67
73575-53-8
ng/kg
534
282
796
449
354
PCB-68
73575-52-7
ng/kg
949
483
1020
1140
448
PCB-72
41464-42-0
ng/kg
1020
527
1170
1380
572
PCB-77
32598-13-3
ng/kg
1010
702
1760
1280
783
PCB-78
70362-49-1
ng/kg
2.49 U
2.50 U
2.49 U
2.57 U
2.53 U
PCB-79
41464-48-6
ng/kg
362
160
254
305
123
PCB-80
33284-52-5
ng/kg
2.09 U
2.09 U
2.08 U
2.15 U
2.12 U
PCB-81
70362-50-4
ng/kg
138
85.3
161
182
66.0
PCB-82
52663-62-4
ng/kg
3210
1720
3370
4080
1560
PCB-83
60145-20-2
ng/kg
1590
941
1760
1940
886
PCB-84
52663-60-2
ng/kg
2850
1740
4390
3110
1630
PCB-85/116/117
85-116-117
ng/kg
9890
5140
9640
12900
4340
PCB-86/87/97/108/119/125
868797108119125
ng/kg
17700
9100
17100
20600
8660
PCB-88/91
88-91
ng/kg
5340
3050
6230
6090
2780
PCB-89
73575-57-2
ng/kg
337
203
485
357
194
PCB-90/101/113
90-101-113
ng/kg
22000
12300
20400
29100
10600
PCB-92
52663-61-3
ng/kg
3920
2430
3930
5750
1780
PCB-93/98/100/102
9398100102
ng/kg
1750
1000
2380
1850
932
PCB-94
73575-55-0
ng/kg
170
82.7
286
210
86.9
PCB-95
38379-99-6
ng/kg
6990
5120
10100
8600
4160
PCB-96
73575-54-9
ng/kg
142
98.6
270
169
101
PCB-99
38380-01-7
ng/kg
20800
10500
18900
26700
9070
PCB-103
60145-21-3
ng/kg
269
145
307
296
130
PCB-104
56558-16-8
ng/kg
3.11 J
2.34 J
5.53 J
4.54 J
2.70 UX
PCB-105
32598-14-4
ng/kg
8780
5170
9390
12200
4720
PCB-106
70424-69-0
ng/kg
26.5 J
2.20 U
2.19 U
2.26 U
2.23 U
PCB-107/124
107-124
ng/kg
614
328
602
602
345
PCB-109
74472-35-8
ng/kg
2520
1220
2110
2870
1240
PCB-110/115
110-115
ng/kg
22600
14900
30600
27100
13000
PCB-111
39635-32-0
ng/kg
38.5 J
16.9 J
38.8 J
45.9 J
15.2 J
PCB-112
74472-36-9
ng/kg
268
116
203
268
107
PCB-114
74472-37-0
ng/kg
1120
581
1020
1500
557
PCB-118
31508-00-6
ng/kg
26500
12900
24200
38600
12500
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
22/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
MR-FF-18
MR-FF-19
MR-FF-20
MR-FF-21
MR-FF-22
Location:
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
38.7
37.2
31
35
40.8
Weight (g):
708
623.9
354.4
495.8
626.4
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352018
40227352019
40227352020
40227353001
40227353002
PCB Congeners
CAS Number
Units
PCB-120
68194-12-7
ng/kg
163
82.0
158
215
73.3
PCB-121
56558-18-0
ng/kg
10.3 J
5.75 J
12.3 J
12.2 J
5.58 J
PCB-122
76842-07-4
ng/kg
324
144
227
243
156
PCB-123
65510-44-3
ng/kg
666
351
771
957
375
PCB-126
57465-28-8
ng/kg
39.8 J
25.4 J
41.6 J
41.8 J
20.0 J
PCB-127
39635-33-1
ng/kg
29.4 J
11.6 J
20.8 J
31.6 J
8.58 J
PCB-128/166
128-166
ng/kg
1520
764
1440
1630
620
PCB-129/138/163
129-138-163
ng/kg
11900
5770
10800
11600
4970
PCB-130
52663-66-8
ng/kg
814
389
748
831
344
PCB-131
61798-70-7
ng/kg
113
46.4 J
104
104
43.9 J
PCB-132
38380-05-1
ng/kg
1770
871
1840
1930
916
PCB-133
35694-04-3
ng/kg
220
102
194
252
99.3
PCB-134/143
^134-143
ng/kg
351
221
459
353
171
PCB-135/151
^135-151
ng/kg
1440
968
1950
1520
737
PCB-136
38411-22-2
ng/kg
332
241
541
339
184
PCB-137
35694-06-5
ng/kg
711
329
708
684
317
PCB-139/140
^139-140
ng/kg
263
129
228
282
116
PCB-141
52712-04-6
ng/kg
1120
632
1050
1150
509
PCB-142
41411-61-4
ng/kg
5.67 J
2.38 U
7.31 J
3.56 J
2.41 U
PCB-144
68194-14-9
ng/kg
267
155
274
292
124
PCB-145
74472-40-5
ng/kg
4.34 J
2.98 U
6.40 J
4.48 J
3.02 U
PCB-146
51908-16-8
ng/kg
2010
909
1790
1950
883
PCB-147/149
^147-149
ng/kg
4430
2920
5840
4320
2380
PCB-148
74472-41-6
ng/kg
21.3 J
10.6 UX
23.3 J
17.8 UX
11.3 J
PCB-150
68194-08-1
ng/kg
11.2 J
6.08 J
13.0 J
11.7 J
5.37 J
PCB-152
68194-09-2
ng/kg
7.93 J
6.27 J
13.5 J
9.39 J
5.16 J
PCB-153/168
153-168
ng/kg
9170
4340
8860
9690
3930
PCB-154
60145-22-4
ng/kg
153
81.4
148
189
64.6
PCB-155
33979-03-2
ng/kg
1.68 UX
1.62 U
2.64 J
3.11 J
1.64 U
PCB-156/157
^156-157
ng/kg
1200
599
1130
1470
565
PCB-158
74472-42-7
ng/kg
1020
496
911
1080
426
PCB-159
39635-35-3
ng/kg
24.3 J
9.42 J
32.1 J
18.9 J
7.82 J
PCB-160
41411-62-5
ng/kg
2.02 U
4.88 J
2.02 U
22.7 J
3.72 J
PCB-161
74472-43-8
ng/kg
2.98 U
2.99 U
2.98 U
3.08 U
3.03 U
PCB-162
39635-34-2
ng/kg
53.6
24.5 J
46.7 J
47.7 J
25.8 J
PCB-164
74472-45-0
ng/kg
328
218
452
307
205
PCB-165
74472-46-1
ng/kg
12.7 J
6.19.T
12.6 J
15.2 J
4.84 J
PCB-167
52663-72-6
ng/kg
544
240
465
630
239
PCB-169
32774-16-6
ng/kg
5.78 UX
3.93 U
3.91 U
8.40 UX
3.98 U
PCB-170
35065-30-6
ng/kg
1350
555
999
1580
585
PCB-171/173
^Tl71-173
ng/kg
454
219
357
409
189
PCB-172
52663-74-8
ng/kg
324
148
274
354
133
PCB-174
38411-25-5
ng/kg
583
432
745
489
302
PCB-175
40186-70-7
ng/kg
69.2
33.9 J
56.0
81.5
27.6 J
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
23/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
MR-FF-18
MR-FF-19
MR-FF-20
MR-FF-21
MR-FF-22
Location:
MR-FF
MR-FF
MR-FF
MR-FF
MR-FF
<
Species:
White Sucker
White Sucker
White Sucker
White Sucker
White Sucker
Length (cm):
38.7
37.2
31
35
40.8
Weight (g):
708
623.9
354.4
495.8
626.4
Sample Date:
5/18/2021
5/18/2021
5/18/2021
5/18/2021
5/18/2021
Lab Sample ID:
40227352018
40227352019
40227352020
40227353001
40227353002
PCB Congeners
CAS Number
Units
PCB-176
52663-65-7
ng/kg
98.1
58.1
115
93.4
52.7
PCB-177
52663-70-4
ng/kg
890
447
730
900
344
PCB-178
52663-67-9
ng/kg
347
168
307
400
139
PCB-179
52663-64-6
ng/kg
211
146
273
219
118
PCB-180/193
180-193
ng/kg
3740
1350
2510
4090
1670
PCB-181
74472-47-2
ng/kg
22.2 J
9.96 J
21.6 J
18.5 J
10.9 J
PCB-182
60145-23-5
ng/kg
13.0 J
7.88 J
13.1 J
15.3 J
6.95 J
PCB-183/185
183-185
ng/kg
1110
542
961
1150
471
PCB-184
74472-48-3
ng/kg
4.33 J
2.32 UX
3.80 J
4.54 J
1.80 U
PCB-186
74472-49-4
ng/kg
1.54 U
1.54 U
1.54 U
1.59 U
1.56 U
PCB-187
52663-68-0
ng/kg
2600
1330
2130
2580
1180
PCB-188
74487-85-7
ng/kg
3.69 J
1.87 U
3.44 J
5.15 J
1.90 U
PCB-189
39635-31-9
ng/kg
65.8
30.2 J
55.8
74.7
28.6 J
PCB-190
41411-64-7
ng/kg
212
80.3
150
335
81.2
PCB-191
74472-50-7
ng/kg
61.9
30.2 J
57.5
67.2
27.4 J
PCB-192
74472-51-8
ng/kg
2.63 U
2.64 U
2.62 U
2.71 U
2.67 U
PCB-194
35694-08-7
ng/kg
597
271
501
759
261
PCB-195
52663-78-2
ng/kg
232
113
181
283
107
PCB-196
42740-50-1
ng/kg
340
123
207
460
143
PCB-197/200
197-200
ng/kg
61.7 J
36.2 J
59.9 J
74.3 J
31.8 J
PCB-198/199
198-199
ng/kg
848
325
560
1260
397
PCB-201
40186-71-8
ng/kg
81.3
38.2 J
70.3 J
86.0
36.2 J
PCB-202
2136-99-4
ng/kg
139
69.8 J
131
189
62.1 J
PCB-203
52663-76-0
ng/kg
576
240
442
739
266
PCB-204
74472-52-9
ng/kg
1.81 U
1.81 U
1.81 U
1.87 U
1.84 U
PCB-205
74472-53-0
ng/kg
39.3 J
16.6 J
34.2 J
47.0 J
19.3 J
PCB-206
40186-72-9
ng/kg
343
176
259
525
169
PCB-207
52663-79-3
ng/kg
33.6 J
20.7 J
28.8 J
44.4 J
19.6 J
PCB-208
52663-77-1
ng/kg
77.9
50.8 J
71.7 J
118
43.0 J
PCB-209
ARC-209
ng/kg
88.5
60.0 J
79.3
156
54.0 J
Total PCB Congeners
--
ng/kg
616771.6 J
350444.97 J
747237.72 J
735779.97 J
339129.82 J
Lipid Content
ARC-LIPID
%
0.63
0.37
0.90
0.47
0.30
See Notes on last page.
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
24/25
-------
Table 5-6
Analytical Results for Fish Tissue Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Notes:
1. Fish were processed as skin-on, scales-off fillets for the laboratory analysis.
2. Stage 4 validation was completed for the analytical results summarized in this table.
3. Non-detects are not included in the total PCB congeners.
Data Qualifiers:
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
N - The analysis indicates the presence of a compound for which there is presumptive evidence to make a tentative identification.
U - The compound was analyzed for but not detected. The associated value is the compound limit of detection.
X - Data may only be used for screening purposes (nondefinitive data) if the quality assurance/quality control (QA/QC) deviation warrants the qualification of the data beyond estimation, but not rejection of the df
Acronyms and Abbreviations:
CAS = Chemical Abstracts Service registry
cm = centimeters
g = grams
ng/kg = nanograms per kilogram
PCB = polychlorinated biphenyl
CTi and Associates, inc. and Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
25/25
-------
Table 5-7
Statistical Summary for Fish Tissue Sample Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Species
Sampling Location
Frequency of
Units
Minimum
Maximum
Mean
Standard
Percentile
Detection
Deviation
10 th
25th
50th
75th
90th
Upstream M-59 ISM-29
5/5 (100%)
mg/kg
0.231
0.747
0.548
0.214
0.330
0.478
0.543
0.743
0.746
ISM-M1-27
5/5 (100%)
mg/kg
0.334
0.784
0.585
0.162
0.433
0.582
0.595
0.631
0.723
Bowen Road
5/5 (100%)
mg/kg
1.34
1.72
1.51
0.191
1.35
1.36
1.43
1.72
1.72
White Sucker
W. Marr Road
5/5 (100%)
mg/kg
0.339
0.747
0.558
0.201
0.344
0.350
0.617
0.736
0.743
Chase Lake Road
5/5 (100%)
mg/kg
0.298
0.717
0.465
0.162
0.319
0.349
0.467
0.494
0.628
Site Locations (excludes ISM-29)
20/20 (100%)
mg/kg
0.298
1.72
0.781
0.467
0.339
0.438
0.624
0.923
1.46
All Sampling Locations
25/25 (100%)
mg/kg
0.231
1.72
0.734
0.435
0.336
0.467
0.617
0.747
1.40
Upstream M-59 ISM-29
6/6 (100%)
mg/kg
0.0188
0.643
0.175
0.241
0.0218
0.0305
0.0723
0.191
0.432
ISM-M1-27
6/6 (100%)
mg/kg
0.127
0.753
0.322
0.227
0.141
0.177
0.280
0.333
0.545
Bowen Road
6/6 (100%)
mg/kg
0.345
0.606
0.507
0.110
0.371
0.428
0.549
0.590
0.600
Panfish
W. Marr Road
6/6 (100%)
mg/kg
0.394
0.851
0.585
0.152
0.447
0.516
0.581
0.601
0.726
Chase Lake Road
6/6 (100%)
mg/kg
0.341
0.593
0.492
0.107
0.358
0.411
0.533
0.568
0.584
Site Locations (excludes ISM-29)
24/24 (100%)
mg/kg
0.127
0.851
0.476
0.176
0.264
0.344
0.519
0.593
0.605
All Sampling Locations
30/30 (100%)
mg/kg
0.0188
0.851
0.416
0.223
0.0917
0.260
0.449
0.590
0.610
Acronyms and Abbreviations:
% = percent
mg/kg = milligram per kilogram
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
1/1
-------
Table 5-8
Statistical Summary for Fish Tissue Lipid Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Species
Sampling Location
Frequency of
Units
Minimum
Maximum
Mean
Standard
Percentile
Detection
Deviation
10 th
25th
50th
75th
90th
Upstream M-59 ISM-29
5/5 (100%)
%
0.410
1.49
0.824
0.466
0.430
0.460
0.640
1.12
1.34
ISM-M1-27
5/5 (100%)
%
0.250
1.09
0.564
0.314
0.330
0.450
0.500
0.530
0.866
Bowen Road
5/5 (100%)
%
0.460
0.990
0.798
0.218
0.580
0.760
0.790
0.990
0.990
White Sucker
W. Marr Road
5/5 (100%)
%
0.300
0.900
0.534
0.239
0.328
0.370
0.470
0.630
0.792
Chase Lake Road
5/5 (100%)
%
0.270
0.770
0.502
0.193
0.322
0.400
0.460
0.610
0.706
Site Locations (excludes ISM-29)
20/20 (100%)
%
0.250
1.09
0.600
0.255
0.297
0.438
0.515
0.775
0.990
All Sampling Locations
25/25 (100%)
%
0.250
1.49
0.644
0.310
0.328
0.450
0.530
0.790
1.05
Upstream M-59 ISM-29
6/6 (inn".,)
%
0.260
0.480
0.347
0.0799
0.265
0.288
0.350
0.367
0.425
ISM-M1-27
6/6 ( Kid".,)
%
0.260
0.380
0.313
0.0427
0.275
0.290
0.305
0.335
0.360
Bowen Road
6/6 ( Km".,)
%
0.300
0.720
0.397
0.162
0.305
0.312
0.330
0.378
0.555
Panfish
W. Marr Road
6/6 ( Km".,)
%
0.180
0.780
0.403
0.216
0.220
0.270
0.350
0.475
0.640
Chase Lake Road
6/6 ( Ki(i".,)
%
0.110
0.320
0.207
0.0703
0.145
0.180
0.195
0.232
0.280
Site Locations (excludes ISM-29)
24/24 i Kiii".,i
%
0.110
0.780
0.330
0.154
0.180
0.255
0.305
0.350
0.470
All Sampling Locations
30/30 (100%)
%
0.110
0.780
0.333
0.142
0.180
0.260
0.315
0.367
0.482
Acronyms and Abbreviations:
% = percent
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 5-9
Statistical Summary for Lipid-Normalized Fish Tissue Sample Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Species
Sampling Location
Frequency of
Units
Minimum
Maximum
Mean
Standard
Percentile
Detection
Deviation
10th
25th
50th
75th
90th
Upstream M-59 ISM-29
5/5 (100%)
mg/kg-lipid
32.1
162
80.3
49.3
41.8
56.4
66.7
84.8
131
ISM-M1-27
5/5 (100%)
mg/kg-lipid
57.9
314
137
104
59.9
63.0
119
129
240
Bowen Road
5/5 (100%)
mg/kg-lipid
144
374
208
93.4
156
172
174
176
295
White Sucker
W. Marr Road
5/5 (100%)
mg/kg-lipid
83.0
157
109
28.6
87.7
94.7
97.9
113
139
Chase Lake Road
5/5 (100%)
mg/kg-lipid
76.6
110
95.0
14.1
80.8
87.3
93.1
107
109
Site Locations (excludes ISM-29)
20/20 (100%)
mg/kg-lipid
57.9
374
137
79.6
75.2
91.6
112
161
190
All Sampling Locations
25/25 (100%)
mg/kg-lipid
32.1
374
126
77.2
59.9
83.0
107
157
175
Upstream M-59 ISM-29
6/6(100%)
mg/kg-lipid
6.86
189
53.6
72.8
6.92
8.48
16.5
69.0
137
ISM-M1-27
6/6(100%)
mg/kg-lipid
48.7
260
104
79.6
48.7
54.2
79.5
105
185
Bowen Road
6/6(100%)
mg/kg-lipid
82.4
187
138
45.1
85.5
99.5
147
174
183
Panfish
W. Marr Road
6/6(100%)
mg/kg-lipid
109
313
172
82.2
115
122
128
206
272
Chase Lake Road
6/6(100%)
mg/kg-lipid
142
471
265
118
161
187
245
299
388
Site Locations (excludes ISM-29)
24/24 (100%)
mg/kg-lipid
48.7
471
170
100
73.9
104
137
214
298
All Sampling Locations
30/30 (100%)
mg/kg-lipid
6.86
471
147
105
19.4
83.1
128
189
285
Acronyms and Abbreviations:
% = percent
mg/kg-lipid = milligram per kilogram lipid
CTI and Associates, Inc. and Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BG-1 SD 0-2 CMP
BG-1 SD 0-2 CMP TRP 1
BG-1 SD 0-2 CMP TRP 2
BG-1 SD 2-6 CMP
BG-1 SD 2-6 CMP TRP 1
BG-1 SD 2-6 CMP TRP 2
BG-3 SD 0-2 CMP
BG-3 SD 2-6 CMP
Location:
BG-1
BG-1
BG-1
BG-1
BG-1
BG-1
BG-3
BG-3
Sample Depth Range (inches)
0-2
0-2
0-2
2-6
2-6
2-6
0-2
2-6
Sample Date:
8/27/2021
8/27/2021
8/27/2021
8/27/2021
8/27/2021
8/27/2021
8/27/2021
8/27/2021
Lab Sample ID:
40232459007
40232459009
40232459011
40232459008
40232459010
40232459012
40232459013
40232459014
PCB Aroclors
Aroclor 1016
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
< 0.0642 U
< 0.0613 U
Aroclor 1221
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
< 0.0642 U
< 0.0613 U
Aroclor 1232
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
< 0.0642 U
< 0.0613 U
Aroclor 1242
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
< 0.0642 U
< 0.0613 U
Aroclor 1248
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
< 0.0642 U
< 0.0613 U
Aroclor 1254
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
0.175
< 0.0613 U
Aroclor 1260
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
0.0314 J
< 0.0613 U
Total Aroclor PCBs
mg/kg
<0.0583 U
< 0.0556 U
< 0.0571 U
< 0.0589 U
< 0.0619 U
< 0.0592 U
0.206 J
< 0.0613 U
General Chemistry
Total Organic Carbon
mg/kg
11,400
7,360
7,160
10,700
2,550
5,260
2,960
9,460
Percent Moisture
%
14.2
10.0
12.4
15.1
19.4
15.7
22.1
18.7
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
BG-4 SD 0-2 CMP
BG-4 SD 2-6 CMP
BG-5 SD 0-2 CMP
BG-5 SD 2-6 CMP
T-001 SD 0-2 CMP
T-001 SD 0-2 CMP TRP 1
T-001 SD 0-2 CMP TRP 2
T-001 SD 2-6 CMP
T-001 SD 2-6 CMP TRP 1
Location:
BG-4
BG-4
BG-5
BG-5
T-001
T-001
T-001
T-001
T-001
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
2-6
Sample Date:
8/27/2021
8/27/2021
8/27/2021
8/27/2021
7/15/2021
7/16/2021
7/16/2021
7/15/2021
7/16/2021
Lab Sample ID:
40232459015
40232459016
40232459017
40232459018
40230298001
40230298003
40230298005
40230298002
40230298004
PCB Aroclors
Aroclor 1016
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
<0.0711 U
< 0.0775 U
< 0.0751 U
< 0.0800 U
< 0.0834 U
Aroclor 1221
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
<0.0711 U
< 0.0775 U
< 0.0751 U
< 0.0800 U
< 0.0834 U
Aroclor 1232
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
<0.0711 U
< 0.0775 U
< 0.0751 U
< 0.0800 U
< 0.0834 U
Aroclor 1242
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
0.315
0.272
0.227
0.357
0.397
Aroclor 1248
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
<0.0711 U
< 0.0775 U
<0.0751 U
< 0.0800 U
< 0.0834 U
Aroclor 1254
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
0.124 J
0.100 J
0.0753
0.128
0.133 J
Aroclor 1260
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
<0.0711 U
< 0.0775 U
<0.0751 U
< 0.0800 U
< 0.0834 U
Total Aroclor PCBs
mg/kg
<0.0651 U
< 0.0608 U
<0.0593 U
< 0.0631 U
0.438 J
0.373 J
0.303
0.485
0.530 J
General Chemistry
Total Organic Carbon
mg/kg
7,530
10,700
5,200
3,470
42,500
24,100
15,000
37,500
28,500
Percent Moisture
%
23.4
18.0
15.8
20.7
29.7
35.4
33.3
37.6
39.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-001 SD 2-6 CMP TRP 2
T-002 SD 0-2 CMP
T-002 SD 0-2 CMP DUP
T-002 SD 2-6 CMP
T-003 SD 0-2 CMP
T-003 SD 2-6 CMP
T-004 SD 0-2 CMP
T-004 SD 2-6 CMP
T-005 SD 0-2 CMP
Location:
T-001
T-002
T-002
T-002
T-003
T-003
T-004
T-004
T-005
Sample Depth Range (inches)
2-6
0-2
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/16/2021
7/16/2021
7/16/2021
7/16/2021
7/16/2021
7/16/2021
7/17/2021
7/17/2021
7/17/2021
Lab Sample ID:
40230298006
40230298007
40230298008
40230298009
40230298010
40230298011
40230298012
40230298013
40230468001
PCB Aroclors
Aroclor 1016
mg/kg
<0.0781 U
< 0.0872 U
< 0.0932 U
< 0.0848 U
< 0.0977 U
< 0.0869 U
< 0.124 U
< 0.0839 U
< 0.0721 U
Aroclor 1221
mg/kg
<0.0781 U
< 0.0872 U
< 0.0932 U
< 0.0848 U
< 0.0977 U
< 0.0869 U
< 0.124 U
< 0.0839 U
< 0.0721 U
Aroclor 1232
mg/kg
<0.0781 U
< 0.0872 U
< 0.0932 U
< 0.0848 U
< 0.0977 U
< 0.0869 U
< 0.124 U
< 0.0839 U
< 0.0721 U
Aroclor 1242
mg/kg
0.215
0.350 J
0.299 JN
0.405
0.439
0.598
0.623 JN
0.455
0.227
Aroclor 1248
mg/kg
<0.0781 U
< 0.0872 U
< 0.0932 U
< 0.0848 U
< 0.0977 U
< 0.0869 U
< 0.124 U
< 0.0839 U
< 0.0721 U
Aroclor 1254
mg/kg
0.0725 J
0.135
0.114
0.165
0.166 J
0.197
0.241
0.159
0.0785
Aroclor 1260
mg/kg
<0.0781 U
< 0.0872 U
< 0.0932 U
< 0.0848 U
< 0.0977 U
< 0.0869 U
< 0.124 U
< 0.0839 U
< 0.0721 U
Total Aroclor PCBs
mg/kg
0.288 J
0.485 J
0.413 J
0.570
0.606 J
0.795
0.863 J
0.614
0.305
General Chemistry
Total Organic Carbon
mg/kg
28,100
27,400
29,900
34,900
35,000
32,400
64,700
32,600
19,900
Percent Moisture
%
36.2
42.7
46.5
41.1
48.8
42.4
59.8
40.2
30.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-005 SD 2-6 CMP
T-006 SD 0-2 CMP
T-006 SD 2-6 CMP
T-007 SD 0-2 CMP
T-007 SD 2-6 CMP
T-008 SD 0-2 CMP
T-008 SD 2-6 CMP
T-009 SD 0-2 CMP
T-009 SD 2-6 CMP
T-010 SD 0-2 CMP
Location:
T-005
T-006
T-006
T-007
T-007
T-008
T-008
T-009
T-009
T-010
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/17/2021
7/17/2021
7/17/2021
7/17/2021
7/17/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
Lab Sample ID:
40230468002
40230468003
40230468004
40230468005
40230468006
40230468007
40230468008
40230468009
40230468010
40230468011
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0634 U
< 0.0977 U
<0.0911 U
< 0.0794 U
< 0.0798 U
< 0.0849 U
< 0.0976 U
< 0.0807 U
< 0.0874 U
< 0.0774 U
Aroclor 1221
mg/kg
< 0.0634 U
< 0.0977 U
<0.0911 U
< 0.0794 U
< 0.0798 U
< 0.0849 U
< 0.0976 U
< 0.0807 U
< 0.0874 U
< 0.0774 U
Aroclor 1232
mg/kg
< 0.0634 U
< 0.0977 U
<0.0911 U
< 0.0794 U
< 0.0798 U
< 0.0849 U
< 0.0976 U
< 0.0807 U
< 0.0874 U
< 0.0774 U
Aroclor 1242
mg/kg
0.237
0.501
0.601 J
0.248 JN
0.418
0.450
0.612
0.315
0.464
0.296
Aroclor 1248
mg/kg
< 0.0634 U
< 0.0977 U
<0.0911 U
< 0.0794 U
< 0.0798 U
< 0.0849 U
< 0.0976 U
< 0.0807 U
< 0.0874 U
< 0.0774 U
Aroclor 1254
mg/kg
0.0721
0.184
0.184
0.0946
0.156
0.151
0.212
0.0933
0.153
0.101
Aroclor 1260
mg/kg
< 0.0634 U
< 0.0977 U
<0.0911 U
< 0.0794 U
< 0.0798 U
< 0.0849 U
< 0.0976 U
< 0.0807 U
< 0.0874 U
< 0.0774 U
Total Aroclor PCBs
mg/kg
0.309
0.685
0.785 J
0.342 J
0.574
0.601
0.823
0.408
0.617
0.397
General Chemistry
Total Organic Carbon
mg/kg
19,500
48,300
44,400
29,000
33,800
37,500
44,200
22,500 J
55,200
24,900
Percent Moisture
%
21.1
48.8
45.2
37.1
37.5
41.3
48.6
38.1
42.9
35.2
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-010 SD 0-2 CMP-DUP
T-010 SD 2-6 CMP
T-010 SD 2-6 CMP-DUP
T-011 SD 0-2 CMP
T-011 SD 2-6 CMP
T-012 SD 0-2 CMP
T-012 SD 2-6 CMP
T-013 SD 0-2 CMP
T-013 SD 2-6 CMP
Location:
T-010
T-010
T-010
T-011
T-011
T-012
T-012
T-013
T-013
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
7/18/2021
Lab Sample ID:
40230468013
40230468012
40230468014
40230468015
40230468016
40230468017
40230468018
40230468019
40230468020
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0758 U
<0.0813 U
< 0.0788 U
< 0.0760 U
< 0.0808 U
< 0.0711 U
< 0.0748 U
< 0.0770 U
< 0.0752 U
Aroclor 1221
mg/kg
< 0.0758 U
<0.0813 U
< 0.0788 U
< 0.0760 U
< 0.0808 U
< 0.0711 U
< 0.0748 U
< 0.0770 U
< 0.0752 U
Aroclor 1232
mg/kg
< 0.0758 U
<0.0813 U
< 0.0788 U
< 0.0760 U
< 0.0808 U
< 0.0711 U
< 0.0748 U
< 0.0770 U
< 0.0752 U
Aroclor 1242
mg/kg
0.273 J
0.414
0.416
0.370
0.413
0.217
0.421
0.227
0.237
Aroclor 1248
mg/kg
< 0.0758 U
<0.0813 U
< 0.0788 U
< 0.0760 U
< 0.0808 U
< 0.0711 U
< 0.0748 U
< 0.0770 U
< 0.0752 U
Aroclor 1254
mg/kg
0.0906
0.122
0.129
0.0896
0.143
0.0680 J
0.125
0.0631 J
0.0706 J
Aroclor 1260
mg/kg
< 0.0758 U
<0.0813 U
< 0.0788 U
< 0.0760 U
< 0.0808 U
< 0.0711 U
< 0.0748 U
< 0.0770 U
< 0.0752 U
Total Aroclor PCBs
mg/kg
0.364 J
0.536
0.545
0.459
0.556
0.285 J
0.546
0.290 J
0.308 J
General Chemistry
Total Organic Carbon
mg/kg
24,400
31,600
26,500
24,000
34,500
19,700
29,300
27,000
25,800
Percent Moisture
%
34.0
38.4
36.6
34.3
38.0
29.8
33.0
35.0
33.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-014 SD 0-2 CMP
T-014 SD 2-6 CMP
T-015 SD 0-2 CMP
T-015 SD 2-6 CMP
T-016 SD 0-2 CMP
T-016 SD 2-6 CMP
T-017 SD 0-2 CMP
T-017 SD 2-6 CMP
T-018 SD 0-2 CMP
T-018 SD 2-6 CMP
Location:
T-014
T-014
T-015
T-015
T-016
T-016
T-017
T-017
T-018
T-018
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
Lab Sample ID:
40230468021
40230468022
40230468023
40230468024
40230468025
40230468026
40230468027
40230468028
40230468029
40230468030
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0934 U
< 0.0916 U
< 0.0710 U
<0.0853 U
< 0.0790 U
< 0.0768 U
< 0.0691 U
< 0.0747 U
< 0.0699 U
< 0.0703 U
Aroclor 1221
mg/kg
< 0.0934 U
< 0.0916 U
< 0.0710 U
<0.0853 U
< 0.0790 U
< 0.0768 U
< 0.0691 U
< 0.0747 U
< 0.0699 U
< 0.0703 U
Aroclor 1232
mg/kg
< 0.0934 U
< 0.0916 U
< 0.0710 U
<0.0853 U
< 0.0790 U
< 0.0768 U
< 0.0691 U
< 0.0747 U
< 0.0699 U
< 0.0703 U
Aroclor 1242
mg/kg
0.279 J
0.383 J
0.192 J
0.215
0.302
0.424 J
0.282
0.500
0.323 J
0.460
Aroclor 1248
mg/kg
< 0.0934 U
< 0.0916 U
< 0.0710 U
<0.0853 U
< 0.0790 U
< 0.0768 U
< 0.0691 U
< 0.0747 U
< 0.0699 U
< 0.0703 U
Aroclor 1254
mg/kg
0.101
0.143
0.0639 J
0.0732 J
0.0904
0.115
0.0599 J
0.103
0.0842
0.105
Aroclor 1260
mg/kg
< 0.0934 U
< 0.0916 U
< 0.0710 U
< 0.0853 U
< 0.0790 U
< 0.0768 U
< 0.0691 U
< 0.0747 U
< 0.0699 U
< 0.0703 U
Total Aroclor PCBs
mg/kg
0.380 J
0.526 J
0.256 J
0.289 J
0.392
0.539 J
0.342
0.602
0.407 J
0.565
General Chemistry
Total Organic Carbon
mg/kg
47,600
42,600
13,000
45,300
22,800
24,200
14,900
16,100
21,700
18,100
Percent Moisture
%
46.6
45.4
29.6
41.4
36.8
35.1
27.8
33.1
28.7
28.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-019 SD 0-2 CMP
T-019 SD 2-6 CMP
T-020 SD 0-2 CMP
T-020 SD 2-6 CMP
T-021 SD 0-2 CMP
T-021 SD 0-2 CMP TRP 1
T-021 SD 0-2 CMP TRP 2
T-021 SD 2-6 CMP
Location:
T-019
T-019
T-020
T-020
T-021
T-021
T-021
T-021
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
7/19/2021
Lab Sample ID:
40230468031
40230468032
40230468033
40230468034
40230468035
40230468037
40230531014
40230468036
PCB Aroclors
Aroclor 1016
mg/kg
<0.0721 U
< 0.0750 U
< 0.0828 U
< 0.0710 U
< 0.0774 U
< 0.0705 U
< 0.0696 U
< 0.0852 U
Aroclor 1221
mg/kg
<0.0721 U
< 0.0750 U
< 0.0828 U
< 0.0710 U
< 0.0774 U
< 0.0705 U
< 0.0696 U
< 0.0852 U
Aroclor 1232
mg/kg
<0.0721 U
< 0.0750 U
< 0.0828 U
< 0.0710 U
< 0.0774 U
< 0.0705 U
< 0.0696 U
< 0.0852 U
Aroclor 1242
mg/kg
0.681 J
1.05
0.549 J
0.778 J
0.574
0.438
0.345
1.30
Aroclor 1248
mg/kg
<0.0721 U
< 0.0750 U
< 0.0828 U
< 0.0710 U
< 0.0774 U
< 0.0705 U
< 0.0696 U
< 0.0852 U
Aroclor 1254
mg/kg
0.214 J
0.267
0.173 J
0.230
0.144 J
0.0884
0.0981
0.254
Aroclor 1260
mg/kg
<0.0721 U
< 0.0750 U
< 0.0828 U
< 0.0710 U
< 0.0774 U
< 0.0705 U
< 0.0696 U
< 0.0852 U
Total Aroclor PCBs
mg/kg
0.895 J
1.31
0.722 J
1.01 J
0.719 J
0.526
0.443
1.55
General Chemistry
Total Organic Carbon
mg/kg
27,200
27,800
22,700 J
25,900 J
25,400
19,200
10,600
31,700
Percent Moisture
%
30.9
33.5
39.7
29.8
35.5
29.0
28.1
41.2
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-021 SD 2-6 CMP TRP 1
T-021 SD 2-6 CMP TRP 2
T-022 SD 0-2 CMP
T-022 SD 2-6 CMP
T-023 SD 0-2 CMP
T-023 SD 2-6 CMP
T-024 SD 0-2 CMP
T-024 SD 2-6 CMP
T-025 SD 0-2 CMP
Location:
T-021
T-021
T-022
T-022
T-023
T-023
T-024
T-024
T-025
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/19/2021
7/19/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
Lab Sample ID:
40230468038
40230531013
40230531015
40230531016
40230531017
40230531018
40230531019
40230531020
40230531021
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0710 U
< 0.0792 U
< 0.0795 U
< 0.0986 U
< 0.0730 U
<0.0751 U
< 0.0784 U
< 0.0839 U
< 0.0728 U
Aroclor 1221
mg/kg
< 0.0710 U
< 0.0792 U
< 0.0795 U
< 0.0986 U
< 0.0730 U
<0.0751 U
< 0.0784 U
< 0.0839 U
< 0.0728 U
Aroclor 1232
mg/kg
< 0.0710 U
< 0.0792 U
< 0.0795 U
< 0.0986 U
< 0.0730 U
<0.0751 U
< 0.0784 U
< 0.0839 U
< 0.0728 U
Aroclor 1242
mg/kg
1.29
0.711
1.15
0.532
0.543
1.32
0.440
0.739
0.314
Aroclor 1248
mg/kg
< 0.0710 U
< 0.0792 U
< 0.0795 U
< 0.0986 U
< 0.0730 U
<0.0751 U
< 0.0784 U
< 0.0839 U
< 0.0728 U
Aroclor 1254
mg/kg
0.175 J
0.196 J
0.128
0.195
0.235
0.246
0.122
0.185 J
0.0897
Aroclor 1260
mg/kg
< 0.0710 U
< 0.0792 U
< 0.0795 U
< 0.0986 U
< 0.0730 U
<0.0751 U
< 0.0784 U
< 0.0839 U
< 0.0728 U
Total Aroclor PCBs
mg/kg
1.46 J
0.907 J
1.27
0.728
0.778
1.56
0.562
0.924 J
0.404
General Chemistry
Total Organic Carbon
mg/kg
22,600
24,900 J
17,400
47,300
24,100
21,300
22,200
36,400
18,900
Percent Moisture
%
29.7
37.0
37.1
49.4
31.7
33.6
36.4
40.4
31.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-025 SD 2-6 CMP
T-026 SD 0-2 CMP
T-026 SD 2-6 CMP
T-027 SD 0-2 CMP
T-027 SD 2-6 CMP
T-028 SD 0-2 CMP
T-028 SD 2-6 CMP
T-029 SD 0-2 CMP
T-029 SD 2-6 CMP
T-030 SD 0-2 CMP
Location:
T-025
T-026
T-026
T-027
T-027
T-028
T-028
T-029
T-029
T-030
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
Lab Sample ID:
40230531022
40230531024
40230531001
40230531002
40230531003
40230531004
40230531005
40230531006
40230531007
40230531008
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0698 U
<0.0681 U
< 0.0770 U
<0.0771 U
< 0.0789 U
<0.0931 U
< 0.0863 U
< 0.0840 U
<0.0731 U
< 0.0703 U
Aroclor 1221
mg/kg
< 0.0698 U
<0.0681 U
< 0.0770 U
<0.0771 U
< 0.0789 U
<0.0931 U
< 0.0863 U
< 0.0840 U
<0.0731 U
< 0.0703 U
Aroclor 1232
mg/kg
< 0.0698 U
<0.0681 U
< 0.0770 U
<0.0771 U
< 0.0789 U
<0.0931 U
< 0.0863 U
< 0.0840 U
<0.0731 U
< 0.0703 U
Aroclor 1242
mg/kg
0.332
0.293
0.188 J
0.337
0.388
0.397 JN
0.793 J
0.305 J
0.417 J
0.316 J
Aroclor 1248
mg/kg
< 0.0698 U
<0.0681 U
< 0.0770 U
<0.0771 U
< 0.0789 U
<0.0931 U
< 0.0863 U
< 0.0840 U
<0.0731 U
< 0.0703 U
Aroclor 1254
mg/kg
0.0989 J
0.0844
0.0584 J
0.0929
0.109
0.143
0.284
0.0958
0.128
0.111
Aroclor 1260
mg/kg
< 0.0698 U
<0.0681 U
< 0.0770 U
< 0.0771 U
< 0.0789 U
<0.0931 U
< 0.0863 U
< 0.0840 U
<0.0731 U
< 0.0703 U
Total Aroclor PCBs
mg/kg
0.431 J
0.377
0.247 J
0.430
0.497
0.540 J
1.08 J
0.400 J
0.544 J
0.427 J
General Chemistry
Total Organic Carbon
mg/kg
14,500
17,000
25,800
20,400
32,800
47,400
39,300
39,300
23,900
28,600
Percent Moisture
%
28.3
26.5
35.1
35.2
36.6
46.2
42.2
40.7
31.8
28.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-030 SD 0-2 CMP DUP
T-030 SD 2-6 CMP
T-030 SD 2-6 CMP DUP
T-031 SD 0-2 CMP
T-031 SD 2-6 CMP
T-032 SD 0-2 CMP
T-032 SD 2-6 CMP
T-033 SD 0-2 CMP
T-033 SD 2-6 CMP
Location:
T-030
T-030
T-030
T-031
T-031
T-032
T-032
T-033
T-033
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/20/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
Lab Sample ID:
40230531010
40230531009
40230531011
40230526001
40230526002
40230526003
40230526004
40230526005
40230526006
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0738 U
< 0.0744 U
< 0.0712 U
< 0.0906 U
< 0.0863 U
< 0.0885 U
< 0.0977 U
< 0.133 U
< 0.340 U
Aroclor 1221
mg/kg
< 0.0738 U
< 0.0744 U
< 0.0712 U
< 0.0906 U
< 0.0863 U
< 0.0885 U
< 0.0977 U
< 0.133 U
< 0.340 U
Aroclor 1232
mg/kg
< 0.0738 U
< 0.0744 U
< 0.0712 U
< 0.0906 U
< 0.0863 U
< 0.0885 U
< 0.0977 U
< 0.133 U
< 0.340 U
Aroclor 1242
mg/kg
0.433
0.962 J
1.19
0.907
0.996
0.393 J
0.640 J
0.973 J
4.85
Aroclor 1248
mg/kg
< 0.0738 U
< 0.0744 U
< 0.0712 U
< 0.0906 U
< 0.0863 U
< 0.0885 U
< 0.0977 U
< 0.133 U
< 0.340 U
Aroclor 1254
mg/kg
0.167
0.246
0.311
0.253
0.307 J
0.148
0.239
0.341
0.511 J
Aroclor 1260
mg/kg
< 0.0738 U
< 0.0744 U
< 0.0712 U
< 0.0906 U
< 0.0863 U
< 0.0885 U
< 0.0977 U
< 0.133 U
< 0.340 U
Total Aroclor PCBs
mg/kg
0.600
1.21 J
1.50
1.16
1.30 J
0.542 J
0.879 J
1.31 J
5.36
General Chemistry
Total Organic Carbon
mg/kg
22,600
32,400 J
28,700 J
42,700
31,300
36,000
41,200
73,700
62,500
Percent Moisture
%
32.4
32.5
30.0
44.8
42.1
43.5
48.7
62.3
56.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-034 SD 0-2 CMP
T-034 SD 2-6 CMP
T-035 SD 0-2 CMP
T-035 SD 2-6 CMP
T-036 SD 0-2 CMP
T-036 SD 2-6 CMP
T-037 SD 0-2 CMP
T-037 SD 2-6 CMP
T-038 SD 0-2 CMP
T-038 SD 2-6 CMP
Location:
T-034
T-034
T-035
T-035
T-036
T-036
T-037
T-037
T-038
T-038
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/21/2021
Lab Sample ID:
40230526007
40230526008
40230526009
40230526010
40230526012
40230526013
40230526014
40230526015
40230526016
40230526017
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0864 U
< 0.0842 U
< 0.0687 U
< 0.0738 U
< 0.0758 U
< 0.0775 U
< 0.0907 U
< 0.0822 U
< 0.0900 U
< 0.106 U
Aroclor 1221
mg/kg
< 0.0864 U
< 0.0842 U
< 0.0687 U
< 0.0738 U
< 0.0758 U
< 0.0775 U
< 0.0907 U
< 0.0822 U
< 0.0900 U
< 0.106 U
Aroclor 1232
mg/kg
< 0.0864 U
< 0.0842 U
< 0.0687 U
< 0.0738 U
< 0.0758 U
< 0.0775 U
< 0.0907 U
< 0.0822 U
< 0.0900 U
< 0.106 U
Aroclor 1242
mg/kg
0.430 J
0.516 J
0.274 J
0.502
0.291 J
0.463 J
0.242 JN
0.320 J
0.218 J
0.640 JN
Aroclor 1248
mg/kg
< 0.0864 U
< 0.0842 U
< 0.0687 U
< 0.0738 U
< 0.0758 U
< 0.0775 U
< 0.0907 U
< 0.0822 U
< 0.0900 U
< 0.106 U
Aroclor 1254
mg/kg
0.157 J
0.198
0.0929
0.104
0.0919
0.131
0.0900 J
0.130
0.0836 J
0.219
Aroclor 1260
mg/kg
< 0.0864 U
< 0.0842 U
< 0.0687 U
< 0.0738 U
< 0.0758 U
< 0.0775 U
< 0.0907 U
< 0.0822 U
< 0.0900 U
< 0.106 U
Total Aroclor PCBs
mg/kg
0.587 J
0.713 J
0.367 J
0.606
0.383 J
0.593 J
0.332 J
0.450 J
0.302 J
0.859 J
General Chemistry
Total Organic Carbon
mg/kg
37,900
29,700
30,600
31,400
29,100
29,400
38,000
29,800
42,600
65,100
Percent Moisture
%
42.1
40.6
27.1
32.3
33.8
35.7
44.9
39.3
44.3
52.7
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
11/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-039 SD 0-2 CMP
T-039 SD 2-6 CMP
T-040 SD 0-2 CMP
T-040 SD 2-6 CMP
T-041 SD 0-2 CMP
T-041 SD 0-2 CMP TRP 1
T-041 SD 0-2 CMP TRP 2
T-041 SD 2-6 CMP
Location:
T-039
T-039
T-040
T-040
T-041
T-041
T-041
T-041
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
7/21/2021
7/21/2021
7/21/2021
7/21/2021
7/26/2021
7/26/2021
7/26/2021
7/26/2021
Lab Sample ID:
40230526018
40230526019
40230526020
40230526021
40230801014
40230801016
40230801018
40230801015
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0839 U
< 0.108 U
< 0.0924 U
< 0.0994 U
< 0.0884 U
< 0.0912 U
< 0.0976 U
< 0.0845 U
Aroclor 1221
mg/kg
< 0.0839 U
< 0.108 U
< 0.0924 U
< 0.0994 U
< 0.0884 U
< 0.0912 U
< 0.0976 U
< 0.0845 U
Aroclor 1232
mg/kg
< 0.0839 U
< 0.108 U
< 0.0924 U
< 0.0994 U
< 0.0884 U
< 0.0912 U
< 0.0976 U
< 0.0845 U
Aroclor 1242
mg/kg
0.294 J
0.867 J
0.460
0.493
0.369
0.388
0.401
0.316
Aroclor 1248
mg/kg
< 0.0839 U
< 0.108 U
< 0.0924 U
< 0.0994 U
< 0.0884 U
< 0.0912 U
< 0.0976 U
< 0.0845 U
Aroclor 1254
mg/kg
0.0965
0.324
0.142
0.188
0.146
0.145
0.155
0.114
Aroclor 1260
mg/kg
< 0.0839 U
< 0.108 U
< 0.0924 U
< 0.0994 U
< 0.0884 U
< 0.0912 U
< 0.0976 U
< 0.0845 U
Total Aroclor PCBs
mg/kg
0.390 J
1.19 J
0.602
0.681
0.515
0.534
0.556
0.430
General Chemistry
Total Organic Carbon
mg/kg
36,600
64,100
52,600
63,800 J
36,000
31,900
34,900
29,600
Percent Moisture
%
40.6
53.6
46.0
49.8
43.3
45.3
48.7
40.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
12/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-041 SD 2-6 CMP TRP 1
T-041 SD 2-6 CMP TRP 2
T-042 SD 0-2 CMP
T-042 SD 2-6 CMP
T-043 SD 0-2 CMP
T-043 SD 2-6 CMP
T-044 SD 0-2 CMP
T-044 SD 2-6 CMP
T-045 SD 0-2 CMP
Location:
T-041
T-041
T-042
T-042
T-043
T-043
T-044
T-044
T-045
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/26/2021
7/26/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
Lab Sample ID:
40230801017
40230801019
40230801020
40230801021
40230801022
40230801023
40230801024
40230801025
40230801026
PCB Aroclors
Aroclor 1016
mg/kg
<0.0833 U
<0.0891 U
< 0.0963 U
<0.111 u
< 0.102 U
< 0.0936 U
< 0.0762 U
< 0.0779 U
< 0.0816 U
Aroclor 1221
mg/kg
<0.0833 U
<0.0891 U
< 0.0963 U
<0.111 u
< 0.102 U
< 0.0936 U
< 0.0762 U
< 0.0779 U
< 0.0816 U
Aroclor 1232
mg/kg
<0.0833 U
<0.0891 U
< 0.0963 U
<0.111 u
< 0.102 U
< 0.0936 U
< 0.0762 U
< 0.0779 U
< 0.0816 U
Aroclor 1242
mg/kg
0.705
0.287
0.278 JN
0.366
0.354 J
0.455 J
0.216
0.233
0.276 J
Aroclor 1248
mg/kg
<0.0833 U
<0.0891 U
< 0.0963 U
<0.111 u
< 0.102 U
< 0.0936 U
< 0.0762 U
< 0.0779 U
< 0.0816 U
Aroclor 1254
mg/kg
0.167
0.107
0.0981 J
0.137
0.123 J
0.168
0.0694 J
0.0837
0.108
Aroclor 1260
mg/kg
<0.0833 U
<0.0891 U
< 0.0963 U
<0.111 u
< 0.102 U
< 0.0936 U
< 0.0762 U
< 0.0779 U
< 0.0816 U
Total Aroclor PCBs
mg/kg
0.872
0.394
0.376 J
0.503
0.477 J
0.623 J
0.285 J
0.317
0.384 J
General Chemistry
Total Organic Carbon
mg/kg
27,100
37,500
38,700
48,000
42,600
29,700
14,900 J
14,500
18,700
Percent Moisture
%
40.1
44.0
48.1
54.8
51.1
46.7
34.2
35.7
38.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-045 SD 2-6 CMP
T-046 SD 0-2 CMP
T-046 SD 2-6 CMP
T-047 SD 0-2 CMP
T-047 SD 2-6 CMP
T-048 SD 0-2 CMP
T-048 SD 2-6 CMP
T-049 SD 0-2 CMP
T-049 SD 2-6 CMP
T-050 SD 0-2 CMP
Location:
T-045
T-046
T-046
T-047
T-047
T-048
T-048
T-049
T-049
T-050
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
Lab Sample ID:
40230801001
40230801002
40230801003
40230801006
40230801007
40230801008
40230801009
40230801010
40230801011
40230801012
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0774 U
< 0.0797 U
< 0.0779 U
< 0.118 U
< 0.102 U
<0.110U
< 0.0894 U
< 0.107 U
< 0.0955 U
< 0.107 U
Aroclor 1221
mg/kg
< 0.0774 U
< 0.0797 U
< 0.0779 U
< 0.118 U
< 0.102 U
<0.110U
< 0.0894 U
< 0.107 U
< 0.0955 U
< 0.107 U
Aroclor 1232
mg/kg
< 0.0774 U
< 0.0797 U
< 0.0779 U
< 0.118 U
< 0.102 U
<0.110U
< 0.0894 U
< 0.107 U
< 0.0955 U
< 0.107 U
Aroclor 1242
mg/kg
0.291
0.314
0.315
0.578
0.389
0.753
0.614 J
0.780 J
0.737 J
0.837 J
Aroclor 1248
mg/kg
< 0.0774 U
< 0.0797 U
< 0.0779 U
< 0.118 U
< 0.102 U
<0.110U
< 0.0894 U
< 0.107 U
< 0.0955 U
< 0.107 U
Aroclor 1254
mg/kg
0.100
0.0908
0.0976
0.227
0.167
0.332
0.294
0.387
0.385
0.380
Aroclor 1260
mg/kg
< 0.0774 U
< 0.0797 U
< 0.0779 U
< 0.118 U
< 0.102 U
<0.110U
< 0.0894 U
< 0.107 U
< 0.0955 U
< 0.107 U
Total Aroclor PCBs
mg/kg
0.391
0.405
0.413
0.805
0.556
1.09
0.908 J
1.17 J
1.12 J
1.22 J
General Chemistry
Total Organic Carbon
mg/kg
19,700
21,600
26,300 J
71,500
34,900
47,700
36,400
47,400
45,600
42,000
Percent Moisture
%
35.3
37.1
35.9
57.5
51.0
54.4
44.0
53.6
47.8
53.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-050 SD 0-2 CMP DUP
T-050 SD 2-6 CMP
T-050 SD 2-6 CMP DUP
T-051 SD 0-2 CMP
T-051 SD 2-6 CMP
T-052 SD 0-2 CMP
T-052 SD 2-6 CMP
T-053 SD 0-2 CMP
T-053 SD 2-6 CMP
Location:
T-050
T-050
T-050
T-051
T-051
T-052
T-052
T-053
T-053
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/27/2021
7/28/2021
7/28/2021
Lab Sample ID:
40230802001
40230801013
40230802002
40230802005
40230802006
40230802007
40230802008
40230802009
40230802010
PCB Aroclors
Aroclor 1016
mg/kg
< 0.108 U
< 0.102 U
< 0.0979 U
< 0.0982 U
< 0.0765 U
< 0.0871 U
< 0.0780 U
<0.0941 U
< 0.0811 U
Aroclor 1221
mg/kg
< 0.108 U
< 0.102 U
< 0.0979 U
< 0.0982 U
< 0.0765 U
< 0.0871 U
< 0.0780 U
<0.0941 U
< 0.0811 U
Aroclor 1232
mg/kg
< 0.108 U
< 0.102 U
< 0.0979 U
< 0.0982 U
< 0.0765 U
< 0.0871 U
< 0.0780 U
<0.0941 U
< 0.0811 U
Aroclor 1242
mg/kg
0.811 J
0.609
0.939
1.25
0.636
0.739
0.876
0.653 J
0.391 JN
Aroclor 1248
mg/kg
< 0.108 U
< 0.102 U
< 0.0979 U
< 0.0982 U
< 0.0765 U
< 0.0871 U
< 0.0780 U
<0.0941 U
< 0.0811 U
Aroclor 1254
mg/kg
0.358
0.285
0.424
0.602
0.279
0.307
0.431
0.277
0.169
Aroclor 1260
mg/kg
< 0.108 U
< 0.102 U
< 0.0979 U
< 0.0982 U
< 0.0765 U
< 0.0871 U
< 0.0780 U
<0.0941 U
< 0.0811 U
Total Aroclor PCBs
mg/kg
1.17 J
0.894
1.36
1.85
0.915
1.05
1.31
0.930 J
0.560 J
General Chemistry
Total Organic Carbon
mg/kg
48,500
36,300
48,100
48,300
24,000
30,000
28,600
28,400
25,900
Percent Moisture
%
53.8
50.8
49.1
48.9
34.9
42.5
36.1
46.9
38.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-054 SD 0-2 CMP
T-054 SD 2-6 CMP
T-055 SD 0-2 CMP
T-055 SD 2-6 CMP
T-056 SD 0-2 CMP
T-056 SD 2-6 CMP
T-057 SD 0-2 CMP
T-057 SD 2-6 CMP
T-058 SD 0-2 CMP
T-058 SD 2-6 CMP
Location:
T-054
T-054
T-055
T-055
T-056
T-056
T-057
T-057
T-058
T-058
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
Lab Sample ID:
40230802011
40230802012
40230802013
40230802014
40230802015
40230802016
40230802019
40230802020
40230802021
40230802022
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0849 U
< 0.0788 U
< 0.107 U
< 0.0824 U
< 0.0870 U
< 0.0752 U
< 0.0853 U
< 0.0761 U
< 0.0942 U
< 0.0812 U
Aroclor 1221
mg/kg
< 0.0849 U
< 0.0788 U
< 0.107 U
< 0.0824 U
< 0.0870 U
< 0.0752 U
< 0.0853 U
< 0.0761 U
< 0.0942 U
< 0.0812 U
Aroclor 1232
mg/kg
< 0.0849 U
< 0.0788 U
< 0.107 U
< 0.0824 U
< 0.0870 U
< 0.0752 U
< 0.0853 U
< 0.0761 U
< 0.0942 U
< 0.0812 U
Aroclor 1242
mg/kg
0.588 J
0.927
0.773 JN
1.03
0.552 J
0.688
0.541
0.645
0.367 JN
0.216
Aroclor 1248
mg/kg
< 0.0849 U
< 0.0788 U
< 0.107 U
< 0.0824 U
< 0.0870 U
< 0.0752 U
< 0.0853 U
< 0.0761 U
< 0.0942 U
< 0.0812 U
Aroclor 1254
mg/kg
0.185
0.310
0.288
0.281
0.238
0.204
0.192
0.246
0.125
0.0695 J
Aroclor 1260
mg/kg
< 0.0849 U
< 0.0788 U
< 0.107 U
< 0.0824 U
< 0.0870 U
< 0.0752 U
< 0.0853 U
< 0.0761 U
< 0.0942 U
< 0.0812 U
Total Aroclor PCBs
mg/kg
0.773 J
1.24
1.06 J
1.31
0.790 J
0.892
0.733
0.891
0.491 J
0.285 J
General Chemistry
Total Organic Carbon
mg/kg
20,100
25,400
36,000
27,300
23,800
24,300
28,300
25,300
50,200
25,500
Percent Moisture
%
41.1
36.7
53.3
39.3
42.7
33.5
41.5
34.5
47.0
38.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-059 SD 0-2 CMP
T-059 SD 2-6 CMP
T-060 SD 0-2 CMP
T-060 SD 2-6 CMP
T-061 SD 0-2 CMP
T-061 SD 0-2 CMP TRP 1
T-061 SD 0-2 CMP TRP 2
T-061 SD 2-6 CMP
Location:
T-059
T-059
T-060
T-060
T-061
T-061
T-061
T-061
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
7/28/2021
Lab Sample ID:
40230802023
40230802024
40230802025
40230802026
40230946001
40230946005
40230946007
40230946002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0790 U
< 0.0685 U
< 0.0849 U
< 0.0889 U
< 0.0745 UJ
< 0.0730 UJ
< 0.0774 UJ
< 0.0722 UJ
Aroclor 1221
mg/kg
< 0.0790 U
< 0.0685 U
< 0.0849 U
< 0.0889 U
< 0.0745 UJ
< 0.0730 UJ
< 0.0774 UJ
< 0.0722 UJ
Aroclor 1232
mg/kg
< 0.0790 U
< 0.0685 U
< 0.0849 U
< 0.0889 U
< 0.0745 UJ
< 0.0730 UJ
< 0.0774 UJ
< 0.0722 UJ
Aroclor 1242
mg/kg
0.303 J
0.354 J
0.267 JN
0.256 J
0.527 J
0.721 J
0.405 J
0.461 J
Aroclor 1248
mg/kg
< 0.0790 U
< 0.0685 U
< 0.0849 U
< 0.0889 U
< 0.0745 UJ
< 0.0730 UJ
< 0.0774 UJ
< 0.0722 UJ
Aroclor 1254
mg/kg
0.111
0.125
0.0900 JN
0.0955
0.166 J
0.237 J
0.154 J
0.168 J
Aroclor 1260
mg/kg
< 0.0790 U
< 0.0685 U
< 0.0849 U
< 0.0889 U
< 0.0745 UJ
< 0.0730 UJ
< 0.0774 UJ
< 0.0722 UJ
Total Aroclor PCBs
mg/kg
0.414 J
0.479 J
0.357 J
0.351 J
0.693 J
0.958 J
0.560 J
0.629 J
General Chemistry
Total Organic Carbon
mg/kg
28,300
13,200
18,500
25,000
21,600 J
19,400 J
16,700 J
11,200 J
Percent Moisture
%
36.5
26.9
41.1
43.8
32.9
31.5
35.4
30.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-061 SD 2-6 CMP TRP 1
T-062 SD 0-2 CMP
T-062 SD 2-6 CMP
T-063 SD 0-2 CMP
T-063 SD 2-6 CMP
T-064 SD 0-2 CMP
T-064 SD 2-6 CMP
T-065 SD 0-2 CMP
T-065 SD 2-6 CMP
Location:
T-061
T-062
T-062
T-063
T-063
T-064
T-064
T-065
T-065
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/28/2021
7/28/2021
7/28/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
Lab Sample ID:
40230946006
40230946008
40230946009
40230946010
40230946011
40230946012
40230946013
40230946014
40230946015
PCB Aroclors
Aroclor 1016
mg/kg
<0.0661 UJ
<0.103 UJ
< 0.0874 UJ
< 0.0787 UJ
< 0.0764 UJ
< 0.0805 UJ
< 0.0806 UJ
< 0.0857 UJ
< 0.0808 UJ
Aroclor 1221
mg/kg
<0.0661 UJ
<0.103 UJ
< 0.0874 UJ
< 0.0787 UJ
< 0.0764 UJ
< 0.0805 UJ
< 0.0806 UJ
< 0.0857 UJ
< 0.0808 UJ
Aroclor 1232
mg/kg
<0.0661 UJ
<0.103 UJ
< 0.0874 UJ
< 0.0787 UJ
< 0.0764 UJ
< 0.0805 UJ
< 0.0806 UJ
< 0.0857 UJ
< 0.0808 UJ
Aroclor 1242
mg/kg
0.621 J
0.656 J
0.498 JN
0.248 J
0.283 J
0.411 J
0.535 J
0.250 J
0.232 J
Aroclor 1248
mg/kg
<0.0661 UJ
<0.103 UJ
< 0.0874 UJ
< 0.0787 UJ
< 0.0764 UJ
< 0.0805 UJ
< 0.0806 UJ
< 0.0857 UJ
< 0.0808 UJ
Aroclor 1254
mg/kg
0.236 J
0.272 J
0.199 J
0.0859 J
0.0929 J
0.136 J
0.183 J
0.0953 J
0.0892 J
Aroclor 1260
mg/kg
<0.0661 UJ
<0.103 UJ
< 0.0874 UJ
< 0.0787 UJ
< 0.0764 UJ
< 0.0805 UJ
< 0.0806 UJ
< 0.0857 UJ
< 0.0808 UJ
Total Aroclor PCBs
mg/kg
0.857 J
0.928 J
0.697 J
0.334 J
0.376 J
0.548 J
0.718 J
0.345 J
0.321 J
General Chemistry
Total Organic Carbon
mg/kg
9,720 J
36,900 J
30,000 J
23,800 J
17,100 J
19,100 J
18,700 J
32,700 J
24,100 J
Percent Moisture
%
24.4
51.4
42.6
36.6
34.5
38.1
38.1
41.7
38.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
18/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-066 SD 0-2 CMP
T-066 SD 2-6 CMP
T-067 SD 0-2 CMP
T-067 SD 2-6 CMP
T-068 SD 0-2 CMP
T-068 SD 2-6 CMP
T-069 SD 0-2 CMP
T-069 SD 2-6 CMP
T-070 SD 0-2 CMP
Location:
T-066
T-066
T-067
T-067
T-068
T-068
T-069
T-069
T-070
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
Lab Sample ID:
40230946018
40230946019
40230946020
40230946021
40230946022
40230946023
40230946024
40230946025
40230946026
PCB Aroclors
Aroclor 1016
mg/kg
<0.0851 UJ
<0.0807 UJ
< 0.0924 UJ
< 0.0782 UJ
<0.108 UJ
< 0.0842 UJ
< 0.0967 UJ
< 0.239 UJ
< 0.0968 U
Aroclor 1221
mg/kg
<0.0851 UJ
<0.0807 UJ
< 0.0924 UJ
< 0.0782 UJ
<0.108 UJ
< 0.0842 UJ
< 0.0967 UJ
< 0.239 UJ
< 0.0968 U
Aroclor 1232
mg/kg
<0.0851 UJ
<0.0807 UJ
< 0.0924 UJ
< 0.0782 UJ
<0.108 UJ
< 0.0842 UJ
< 0.0967 UJ
< 0.239 UJ
< 0.0968 U
Aroclor 1242
mg/kg
0.411 JN
0.281 J
0.332 J
0.205 J
0.431 JN
0.263 J
0.813 J
1.54 JN
0.434
Aroclor 1248
mg/kg
<0.0851 UJ
<0.0807 UJ
< 0.0924 UJ
< 0.0782 UJ
<0.108 UJ
< 0.0842 UJ
< 0.0967 UJ
< 0.239 UJ
< 0.0968 U
Aroclor 1254
mg/kg
0.200 J
0.113 J
0.126 J
0.0725 J
0.200 J
0.0944 J
0.409 J
0.971 J
0.186 J
Aroclor 1260
mg/kg
<0.0851 UJ
<0.0807 UJ
< 0.0924 UJ
< 0.0782 UJ
<0.108 UJ
< 0.0842 UJ
< 0.0967 UJ
< 0.239 UJ
< 0.0968 U
Total Aroclor PCBs
mg/kg
0.612 J
0.393 J
0.457 J
0.278 J
0.631 J
0.358 J
1.22 J
2.51 J
0.620 J
General Chemistry
Total Organic Carbon
mg/kg
28,000 J
27,700 J
26,500 J
18,300 J
45,500 J
28,900 J
31,200 J
21,700 J
38,000
Percent Moisture
%
41.3
38.1
45.7
36.1
53.6
40.6
48.4
37.0
48.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
19/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-070 SD 0-2 CMP DUP
T-070 SD 2-6 CMP
T-070 SD 2-6 CMP DUP
T-071 SD 0-2 CMP
T-071 SD 2-6 CMP
T-072 SD 0-2 CMP
T-072 SD 2-6 CMP
T-073 SD 0-2 CMP
T-073 SD 2-6 CMP
Location:
T-070
T-070
T-070
T-071
T-071
T-072
T-072
T-073
T-073
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
7/29/2021
Lab Sample ID:
40230946028
40230946027
40230946029
40230946032
40230946033
40230946034
40230946035
40230946036
40230946037
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0964 U
< 0.0946 U
< 0.0905 U
< 0.0985 U
< 0.107 U
< 0.0966 U
<0.0941 U
<0.0913 U
< 0.0795 U
Aroclor 1221
mg/kg
< 0.0964 U
< 0.0946 U
< 0.0905 U
< 0.0985 U
< 0.107 U
< 0.0966 U
<0.0941 U
<0.0913 U
< 0.0795 U
Aroclor 1232
mg/kg
< 0.0964 U
< 0.0946 U
< 0.0905 U
< 0.0985 U
< 0.107 U
< 0.0966 U
<0.0941 U
<0.0913 U
< 0.0795 U
Aroclor 1242
mg/kg
0.399
0.531
0.444 J
0.436 JN
0.536
0.589
0.646
0.406
0.320 J
Aroclor 1248
mg/kg
< 0.0964 U
< 0.0946 U
< 0.0905 U
< 0.0985 U
< 0.107 U
< 0.0966 U
<0.0941 U
<0.0913 U
< 0.0795 U
Aroclor 1254
mg/kg
0.168 J
0.217
0.199
0.181
0.186
0.239
0.266
0.161
0.135
Aroclor 1260
mg/kg
< 0.0964 U
< 0.0946 U
< 0.0905 U
< 0.0985 U
< 0.107 U
< 0.0966 U
<0.0941 U
<0.0913 U
< 0.0795 U
Total Aroclor PCBs
mg/kg
0.567 J
0.749
0.643 J
0.616 J
0.722
0.827
0.912
0.567
0.454 J
General Chemistry
Total Organic Carbon
mg/kg
38,900
31,300
29,600
47,700
52,900
32,000
30,500
24,700
15,300
Percent Moisture
%
48.0
47.3
44.8
49.3
52.9
48.4
47.0
45.2
37.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-074 SD 0-2 CMP
T-074 SD 2-6 CMP
T-075 SD 0-2 CMP
T-075 SD 2-6 CMP
T-076 SD 0-2 CMP
T-076 SD 2-6 CMP
T-077 SD 0-2 CMP
T-077 SD 2-6 CMP
T-078 SD 0-2 CMP
T-078 SD 2-6 CMP
Location:
T-074
T-074
T-075
T-075
T-076
T-076
T-077
T-077
T-078
T-078
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
Lab Sample ID:
40230971001
40230971002
40230971003
40230971004
40230971007
40230971008
40230971009
40230971010
40230971011
40230971012
PCB Aroclors
Aroclor 1016
mg/kg
< 0.105 U
< 0.0786 U
< 0.0895 U
< 0.0788 U
< 0.0808 U
<0.0941 U
< 0.0954 U
< 0.0889 U
< 0.0778 U
<0.0751 U
Aroclor 1221
mg/kg
< 0.105 U
< 0.0786 U
< 0.0895 U
< 0.0788 U
< 0.0808 U
<0.0941 U
< 0.0954 U
< 0.0889 U
< 0.0778 U
<0.0751 U
Aroclor 1232
mg/kg
< 0.105 U
< 0.0786 U
< 0.0895 U
< 0.0788 U
< 0.0808 U
<0.0941 U
< 0.0954 U
< 0.0889 U
< 0.0778 U
<0.0751 U
Aroclor 1242
mg/kg
0.642
0.885 JN
0.267 JN
0.410 JN
0.365 J
0.720
0.487
0.538
0.221 J
0.369 JN
Aroclor 1248
mg/kg
< 0.105 U
< 0.0786 U
< 0.0895 U
< 0.0788 U
< 0.0808 U
<0.0941 U
< 0.0954 U
< 0.0889 U
< 0.0778 U
<0.0751 U
Aroclor 1254
mg/kg
0.271
0.356 J
0.118
0.162
0.142
0.223
0.193
0.218
0.0713 J
0.119 J
Aroclor 1260
mg/kg
< 0.105 U
< 0.0786 U
< 0.0895 U
< 0.0788 U
< 0.0808 U
<0.0941 U
< 0.0954 U
< 0.0889 U
< 0.0778 U
<0.0751 U
Total Aroclor PCBs
mg/kg
0.914
1.24 J
0.385 J
0.572 J
0.507 J
0.942
0.680
0.757
0.292 J
0.488 J
General Chemistry
Total Organic Carbon
mg/kg
34,900
21,500
24,900
30,200
30,600
36,000
30,300
30,000
15,900
17,200
Percent Moisture
%
52.3
36.6
44.1
36.8
38.0
47.0
47.7
43.7
35.6
33.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-079 SD 0-2 CMP
T-079 SD 2-6 CMP
T-080 SD 0-2 CMP
T-080 SD 2-6 CMP
T-081 SD 0-2 CMP
T-081 SD 0-2 CMP TRP 1
T-081 SD 0-2 CMP TRP 2
T-081 SD 2-6 CMP
Location:
T-079
T-079
T-080
T-080
T-081
T-081
T-081
T-081
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/30/2021
7/31/2021
7/30/2021
Lab Sample ID:
40230971013
40230971014
40230971015
40230971016
40230971019
40230971021
40230971023
40230971020
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0898 U
<0.0831 U
<0.0883 U
< 0.0930 U
< 0.0886 U
< 0.0810 U
<0.0783 U
< 0.0899 U
Aroclor 1221
mg/kg
< 0.0898 U
<0.0831 U
<0.0883 U
< 0.0930 U
< 0.0886 U
< 0.0810 U
<0.0783 U
< 0.0899 U
Aroclor 1232
mg/kg
< 0.0898 U
<0.0831 U
<0.0883 U
< 0.0930 U
< 0.0886 U
< 0.0810 U
<0.0783 U
< 0.0899 U
Aroclor 1242
mg/kg
0.448 JN
0.395
0.288
0.617 J
0.529
0.503 J
0.437 J
0.755
Aroclor 1248
mg/kg
< 0.0898 U
<0.0831 U
<0.0883 U
< 0.0930 U
< 0.0886 U
< 0.0810 U
<0.0783 U
< 0.0899 U
Aroclor 1254
mg/kg
0.165
0.137
0.113
0.236
0.178
0.189
0.176
0.269
Aroclor 1260
mg/kg
< 0.0898 U
<0.0831 U
<0.0883 U
< 0.0930 U
< 0.0886 U
< 0.0810 U
<0.0783 U
< 0.0899 U
Total Aroclor PCBs
mg/kg
0.612 J
0.532
0.400
0.853 J
0.707
0.692 J
0.613 J
1.02
General Chemistry
Total Organic Carbon
mg/kg
31,400
26,100
25,400 J
33,300 J
31,400
20,700
23,100
31,600
Percent Moisture
%
44.1
39.9
43.5
46.2
43.5
38.5
36.2
44.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-081 SD 2-6 CMP TRP 1
T-081 SD 2-6 CMP TRP 2
T-082 SD 0-2 CMP
T-082 SD 2-6 CMP
T-083 SD 0-2 CMP
T-083 SD 2-6 CMP
T-084 SD 0-2 CMP
T-084 SD 2-6 CMP
T-085 SD 0-2 CMP
Location:
T-081
T-081
T-082
T-082
T-083
T-083
T-084
T-084
T-085
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/30/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
Lab Sample ID:
40230971022
40230971024
40230971025
40230971026
40230969001
40230969002
40230969003
40230969004
40230969005
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0822 U
< 0.0820 U
< 0.0724 U
< 0.0738 U
< 0.0770 U
<0.0813 U
< 0.0701 U
< 0.0719 U
< 0.0735 U
Aroclor 1221
mg/kg
< 0.0822 U
< 0.0820 U
< 0.0724 U
< 0.0738 U
< 0.0770 U
<0.0813 U
< 0.0701 U
< 0.0719 U
< 0.0735 U
Aroclor 1232
mg/kg
< 0.0822 U
< 0.0820 U
< 0.0724 U
< 0.0738 U
< 0.0770 U
<0.0813 U
< 0.0701 U
< 0.0719 U
< 0.0735 U
Aroclor 1242
mg/kg
0.505 J
0.433
0.336 JN
0.297
0.348
0.263 J
0.439 J
0.494 J
0.288 JN
Aroclor 1248
mg/kg
< 0.0822 U
< 0.0820 U
< 0.0724 U
< 0.0738 U
< 0.0770 U
<0.0813 U
< 0.0701 U
< 0.0719 U
< 0.0735 U
Aroclor 1254
mg/kg
0.196
0.163
0.190 J
0.102
0.0810
0.0875
0.111
0.133
0.0999 J
Aroclor 1260
mg/kg
< 0.0822 U
< 0.0820 U
< 0.0724 U
< 0.0738 U
< 0.0770 U
<0.0813 U
< 0.0701 U
< 0.0719 U
< 0.0735 U
Total Aroclor PCBs
mg/kg
0.702 J
0.596
0.525 J
0.399
0.429
0.350 J
0.551 J
0.627 J
0.388 J
General Chemistry
Total Organic Carbon
mg/kg
29,600
34,900 J
13,600
18,600
15,000
30,800
13,800
16,900
17,500
Percent Moisture
%
39.2
39.1
31.1
32.2
35.0
38.6
28.8
30.6
31.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-085 SD 2-6 CMP
T-086 SD 0-2 CMP
T-086 SD 2-6 CMP
T-087 SD 0-2 CMP
T-087 SD 2-6 CMP
T-088 SD 0-2 CMP
T-088 SD 2-6 CMP
T-089 SD 0-2 CMP
T-089 SD 2-6 CMP
T-090 SD 0-2 CMP
Location:
T-085
T-086
T-086
T-087
T-087
T-088
T-088
T-089
T-089
T-090
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
7/31/2021
Lab Sample ID:
40230969006
40230969009
40230969010
40230969011
40230969012
40230969013
40230969014
40230969015
40230969016
40230969017
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0698 U
< 0.0720 U
< 0.0710 U
< 0.0707 U
< 0.0866 U
< 0.0784 U
< 0.0773 U
< 0.0637 U
<0.0661 U
< 0.0649 U
Aroclor 1221
mg/kg
< 0.0698 U
< 0.0720 U
< 0.0710 U
< 0.0707 U
< 0.0866 U
< 0.0784 U
< 0.0773 U
< 0.0637 U
<0.0661 U
< 0.0649 U
Aroclor 1232
mg/kg
< 0.0698 U
< 0.0720 U
< 0.0710 U
< 0.0707 U
< 0.0866 U
< 0.0784 U
< 0.0773 U
< 0.0637 U
<0.0661 U
< 0.0649 U
Aroclor 1242
mg/kg
0.439 JN
0.243 J
0.362 J
0.183 J
0.375 JN
0.299 J
0.482
0.226
0.305
0.292
Aroclor 1248
mg/kg
< 0.0698 U
< 0.0720 U
< 0.0710 U
< 0.0707 U
< 0.0866 U
< 0.0784 U
< 0.0773 U
< 0.0637 U
<0.0661 U
< 0.0649 U
Aroclor 1254
mg/kg
0.137 J
< 0.0720 U
0.0885 J
0.0662 J
0.133
0.0937
0.154
0.0511 J
0.0740
0.0574 J
Aroclor 1260
mg/kg
< 0.0698 U
< 0.0720 U
< 0.0710 U
< 0.0707 U
< 0.0866 U
< 0.0784 U
< 0.0773 U
< 0.0637 U
<0.0661 U
< 0.0649 U
Total Aroclor PCBs
mg/kg
0.576 J
0.243 J
0.451 J
0.249 J
0.507 J
0.393 J
0.636
0.277 J
0.379
0.350 J
General Chemistry
Total Organic Carbon
mg/kg
12,100
11,700
11,600
12,500
22,500
16,000
16,300
4,720
7,420
11,800
Percent Moisture
%
28.3
30.5
29.6
29.4
42.2
36.0
35.4
21.5
24.2
22.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
24/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-090 SD 0-2 CMP DUP
T-090 SD 2-6 CMP
T-090 SD 2-6 CMP DUP
T-091 SD 0-2 CMP
T-091 SD 2-6 CMP
T-092 SD 0-2 CMP
T-092 SD 2-6 CMP
T-093 SD 0-2 CMP
T-093 SD 2-6 CMP
Location:
T-090
T-090
T-090
T-091
T-091
T-092
T-092
T-093
T-093
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
7/31/2021
7/31/2021
7/31/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
Lab Sample ID:
40230969019
40230969018
40230969020
40230969023
40230969024
40230969025
40230969026
40231009001
40231009002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0637 U
< 0.0615 U
< 0.0618 U
< 0.0636 U
< 0.0647 U
< 0.0643 U
< 0.0665 U
< 0.0766 U
< 0.0703 U
Aroclor 1221
mg/kg
< 0.0637 U
< 0.0615 U
< 0.0618 U
< 0.0636 U
< 0.0647 U
< 0.0643 U
< 0.0665 U
< 0.0766 U
< 0.0703 U
Aroclor 1232
mg/kg
< 0.0637 U
< 0.0615 U
< 0.0618 U
< 0.0636 U
< 0.0647 U
< 0.0643 U
< 0.0665 U
< 0.0766 U
< 0.0703 U
Aroclor 1242
mg/kg
0.246
0.245
0.263
0.258
0.315
0.343
0.314
0.386 J
0.475
Aroclor 1248
mg/kg
< 0.0637 U
< 0.0615 U
< 0.0618 U
< 0.0636 U
< 0.0647 U
< 0.0643 U
< 0.0665 U
< 0.0766 U
< 0.0703 U
Aroclor 1254
mg/kg
0.0562 J
0.0439 J
0.0492 J
0.0556 J
0.0730
0.0702
0.0714
0.121
0.123
Aroclor 1260
mg/kg
< 0.0637 U
< 0.0615 U
< 0.0618 U
< 0.0636 U
< 0.0647 U
< 0.0643 U
< 0.0665 U
< 0.0766 U
< 0.0703 U
Total Aroclor PCBs
mg/kg
0.303 J
0.289 J
0.312 J
0.313 J
0.388
0.413
0.385
0.507 J
0.598
General Chemistry
Total Organic Carbon
mg/kg
6,780
5,640 J
3,150 J
9,160
7,690
5,800
7,780
15,400
17,100
Percent Moisture
%
21.6
19.0
19.3
21.4
22.9
22.1
25.0
34.6
28.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
25/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-094 SD 0-2 CMP
T-094 SD 2-6 CMP
T-095 SD 0-2 CMP
T-095 SD 2-6 CMP
T-096 SD 0-2 CMP
T-096 SD 2-6 CMP
T-097 SD 0-2 CMP
T-097 SD 2-6 CMP
T-098 SD 0-2 CMP
T-098 SD 2-6 CMP
Location:
T-094
T-094
T-095
T-095
T-096
T-096
T-097
T-097
T-098
T-098
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
Lab Sample ID:
40231009003
40231009004
40231009005
40231009006
40231009009
40231009010
40231009011
40231009012
40231009013
40231009014
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0780 U
< 0.0782 U
< 0.0849 U
< 0.0848 U
< 0.0909 U
< 0.0840 U
< 0.0772 U
< 0.0779 U
<0.0713 U
< 0.0706 U
Aroclor 1221
mg/kg
< 0.0780 U
< 0.0782 U
< 0.0849 U
< 0.0848 U
< 0.0909 U
< 0.0840 U
< 0.0772 U
< 0.0779 U
<0.0713 U
< 0.0706 U
Aroclor 1232
mg/kg
< 0.0780 U
< 0.0782 U
< 0.0849 U
< 0.0848 U
< 0.0909 U
< 0.0840 U
< 0.0772 U
< 0.0779 U
<0.0713 U
< 0.0706 U
Aroclor 1242
mg/kg
0.212 J
0.201
0.263
0.342
0.336
0.234
0.205
0.397
0.238
0.416
Aroclor 1248
mg/kg
< 0.0780 U
< 0.0782 U
< 0.0849 U
< 0.0848 U
< 0.0909 U
< 0.0840 U
< 0.0772 U
< 0.0779 U
<0.0713 U
< 0.0706 U
Aroclor 1254
mg/kg
0.0743 J
0.0564 J
0.0756 J
0.0980 J
0.133 J
0.0719 J
0.0621 J
0.122
0.0781
0.147
Aroclor 1260
mg/kg
< 0.0780 U
< 0.0782 U
< 0.0849 U
< 0.0848 U
< 0.0909 U
< 0.0840 U
< 0.0772 U
< 0.0779 U
<0.0713 U
< 0.0706 U
Total Aroclor PCBs
mg/kg
0.287 J
0.257 J
0.338 J
0.440 J
0.468 J
0.306 J
0.267 J
0.519
0.316
0.563
General Chemistry
Total Organic Carbon
mg/kg
19,000
21,500
47,000
27,200
32,400
29,700
19,300
22,100
12,400
17,100
Percent Moisture
%
36.1
36.1
41.3
41.0
44.9
40.5
35.2
35.8
29.7
29.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
26/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-099 SD 0-2 CMP
T-099 SD 2-6 CMP
T-100 SD 0-2 CMP
T-100 SD 2-6 CMP
T-101 SD 0-2 CMP
T-101 SD 0-2 CMP TRP 1
T-101 SD 0-2 CMP TRP 2
T-101 SD 2-6 CMP
Location:
T-099
T-099
T-100
T-100
T-101
T-101
T-101
T-101
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
Lab Sample ID:
40231009015
40231009016
40231009017
40231009018
40231009021
40231009023
40231009025
40231009022
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0817 U
< 0.0707 U
< 0.0719 U
< 0.0697 U
< 0.0749 U
< 0.0805 U
< 0.0819 U
< 0.0692 U
Aroclor 1221
mg/kg
< 0.0817 U
< 0.0707 U
< 0.0719 U
< 0.0697 U
< 0.0749 U
< 0.0805 U
< 0.0819 U
< 0.0692 U
Aroclor 1232
mg/kg
< 0.0817 U
< 0.0707 U
< 0.0719 U
< 0.0697 U
< 0.0749 U
< 0.0805 U
< 0.0819 U
< 0.0692 U
Aroclor 1242
mg/kg
0.215 J
0.179
0.357 J
0.310
0.238
0.398
0.331
0.399
Aroclor 1248
mg/kg
< 0.0817 U
< 0.0707 U
< 0.0719 U
< 0.0697 U
< 0.0749 U
< 0.0805 U
< 0.0819 U
< 0.0692 U
Aroclor 1254
mg/kg
0.0813 J
0.0563 J
0.0987
0.0846
0.0877
0.154
0.108
0.101
Aroclor 1260
mg/kg
< 0.0817 U
< 0.0707 U
< 0.0719 U
< 0.0697 U
< 0.0749 U
< 0.0805 U
< 0.0819 U
< 0.0692 U
Total Aroclor PCBs
mg/kg
0.296 J
0.235 J
0.456 J
0.394
0.326
0.552
0.440
0.500
General Chemistry
Total Organic Carbon
mg/kg
20,300
21,800
17,400 J
13,200 J
17,900
23,900
20,200
14,900
Percent Moisture
%
39.0
29.5
30.3
28.2
33.5
38.0
38.7
27.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-101 SD 2-6 CMP TRP 1
T-101 SD 2-6 CMP TRP 2
T-102 SD 0-2 CMP
T-102 SD 2-6 CMP
T-103 SD 0-2 CMP
T-103 SD 2-6 CMP
T-104 SD 0-2 CMP
T-104 SD 2-6 CMP
T-105 SD 0-2 CMP
Location:
T-101
T-101
T-102
T-102
T-103
T-103
T-104
T-104
T-105
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
8/1/2021
Lab Sample ID:
40231009024
40231009026
40230985001
40230985002
40230985003
40230985004
40230985005
40230985006
40230985007
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0664 U
<0.0691 U
< 0.170 U
< 0.227 U
< 0.0764 U
< 0.0700 U
< 0.0686 U
< 0.0732 U
< 0.0739 U
Aroclor 1221
mg/kg
< 0.0664 U
<0.0691 U
< 0.170 U
< 0.227 U
< 0.0764 U
< 0.0700 U
< 0.0686 U
< 0.0732 U
< 0.0739 U
Aroclor 1232
mg/kg
< 0.0664 U
<0.0691 U
< 0.170 U
< 0.227 U
< 0.0764 U
< 0.0700 U
< 0.0686 U
< 0.0732 U
< 0.0739 U
Aroclor 1242
mg/kg
0.332
0.427
2.43
3.07
0.535
0.769
0.314 J
0.495 J
0.355 J
Aroclor 1248
mg/kg
< 0.0664 U
<0.0691 U
< 0.170 U
< 0.227 U
< 0.0764 U
< 0.0700 U
< 0.0686 U
< 0.0732 U
< 0.0739 U
Aroclor 1254
mg/kg
0.0835
0.101
0.636
0.291
0.184
0.256
0.0861
0.154
0.116
Aroclor 1260
mg/kg
< 0.0664 U
<0.0691 U
< 0.170 U
< 0.227 U
< 0.0764 U
< 0.0700 U
< 0.0686 U
< 0.0732 U
< 0.0739 U
Total Aroclor PCBs
mg/kg
0.415
0.527
3.07
3.36
0.719
1.02
0.400 J
0.649 J
0.470 J
General Chemistry
Total Organic Carbon
mg/kg
12,400
13,600
26,500
27,400 J
22,400
14,800
9,980
16,200
13,500
Percent Moisture
%
24.7
27.4
41.4
34.1
34.7
28.6
27.3
31.6
32.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-105 SD 2-6 CMP
T-106 SD 0-2 CMP
T-106 SD 2-6 CMP
T-107 SD 0-2 CMP
T-107 SD 2-6 CMP
T-108 SD 0-2 CMP
T-108 SD 2-6 CMP
T-109 SD 0-2 CMP
T-109 SD 2-6 CMP
T-110 SD 0-2 CMP
Location:
T-105
T-106
T-106
T-107
T-107
T-108
T-108
T-109
T-109
T-110
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/1/2021
8/1/2021
8/1/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
Lab Sample ID:
40230985008
40230985011
40230985012
40230985013
40230985014
40230985015
40230985016
40230985017
40230985018
40230985019
PCB Aroclors
Aroclor 1016
mg/kg
<0.0783 U
< 0.0727 U
<0.0721 U
< 0.0694 U
< 0.0676 U
<0.0773 U
< 0.0704 U
< 0.0673 U
< 0.0722 U
< 0.0676 U
Aroclor 1221
mg/kg
<0.0783 U
< 0.0727 U
<0.0721 U
< 0.0694 U
< 0.0676 U
<0.0773 U
< 0.0704 U
< 0.0673 U
< 0.0722 U
< 0.0676 U
Aroclor 1232
mg/kg
<0.0783 U
< 0.0727 U
<0.0721 U
< 0.0694 U
< 0.0676 U
<0.0773 U
< 0.0704 U
< 0.0673 U
< 0.0722 U
< 0.0676 U
Aroclor 1242
mg/kg
0.723 JN
0.336 J
0.650 JN
0.196
0.301
0.330 J
0.328
0.184 J
0.182 JN
0.188 J
Aroclor 1248
mg/kg
<0.0783 U
< 0.0727 U
<0.0721 U
< 0.0694 U
< 0.0676 U
<0.0773 U
< 0.0704 U
< 0.0673 U
< 0.0722 U
< 0.0676 U
Aroclor 1254
mg/kg
0.253
0.120 J
0.183
0.0562 J
0.0798
0.102 JN
0.117
0.0564 J
0.0588 J
0.0623 J
Aroclor 1260
mg/kg
<0.0783 U
< 0.0727 U
<0.0721 U
< 0.0694 U
< 0.0676 U
<0.0773 U
< 0.0704 U
< 0.0673 U
< 0.0722 U
< 0.0676 U
Total Aroclor PCBs
mg/kg
0.976 J
0.456 J
0.832 J
0.252 J
0.380
0.432 J
0.445
0.240 J
0.241 J
0.250 J
General Chemistry
Total Organic Carbon
mg/kg
24,700
16,700
16,100
13,300
12,800
14,000
13,100
6,020
16,000
11,600
Percent Moisture
%
36.1
31.4
31.0
28.1
25.9
35.4
28.9
25.6
31.0
26.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-110 SD 0-2 CMP DUP
T-110 SD 2-6 CMP
T-110 SD 2-6 CMP DUP
T-lll SD 0-2 CMP
T-lll SD 2-6 CMP
T-112 SD 0-2 CMP
T-112 SD 2-6 CMP
T-113 SD 0-2 CMP
T-113 SD 2-6 CMP
Location:
T-110
T-110
T-110
T-lll
T-lll
T-112
T-112
T-113
T-113
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
Lab Sample ID:
40230985021
40230985020
40230985022
40230985025
40230985026
40230967001
40230967002
40230967003
40230967004
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0705 U
< 0.0639 U
< 0.0666 U
< 0.0704 U
< 0.0646 U
< 0.0702 U
< 0.0655 U
< 0.0679 U
< 0.0712 U
Aroclor 1221
mg/kg
< 0.0705 U
< 0.0639 U
< 0.0666 U
< 0.0704 U
< 0.0646 U
< 0.0702 U
< 0.0655 U
< 0.0679 U
< 0.0712 U
Aroclor 1232
mg/kg
< 0.0705 U
< 0.0639 U
< 0.0666 U
< 0.0704 U
< 0.0646 U
< 0.0702 U
< 0.0655 U
< 0.0679 U
< 0.0712 U
Aroclor 1242
mg/kg
0.211 JN
0.308
0.415
0.453
0.785
0.346 J
0.303 JN
0.269 J
0.286 J
Aroclor 1248
mg/kg
< 0.0705 U
< 0.0639 U
< 0.0666 U
< 0.0704 U
< 0.0646 U
< 0.0702 U
< 0.0655 U
< 0.0679 U
< 0.0712 U
Aroclor 1254
mg/kg
0.0706
0.0697
0.0827
0.120
0.203
0.0890
0.0992
0.0739
0.0842
Aroclor 1260
mg/kg
< 0.0705 U
< 0.0639 U
< 0.0666 U
< 0.0704 U
< 0.0646 U
< 0.0702 U
< 0.0655 U
< 0.0679 U
< 0.0712 U
Total Aroclor PCBs
mg/kg
0.281 J
0.378
0.498
0.573
0.988
0.435 J
0.402 J
0.343 J
0.371 J
General Chemistry
Total Organic Carbon
mg/kg
12,300
5,750
6,610
17,800
8,470
6,260
9,550
7,260
15,600
Percent Moisture
%
29.0
21.7
24.8
29.0
22.7
28.9
23.6
26.4
30.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-114 SD 0-2 CMP
T-114 SD 2-6 CMP
T-115 SD 0-2 CMP
T-115 SD 2-6 CMP
T-116 SD 0-2 CMP
T-116 SD 2-6 CMP
T-117 SD 0-2 CMP
T-117 SD 2-6 CMP
T-118 SD 0-2 CMP
T-118 SD 2-6 CMP
Location:
T-114
T-114
T-115
T-115
T-116
T-116
T-117
T-117
T-118
T-118
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
8/2/2021
Lab Sample ID:
40230967005
40230967006
40230967007
40230967008
40230967011
40230967012
40230967013
40230967014
40230967015
40230967016
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0686 U
<0.0671 U
< 0.0726 U
<0.0771 U
<0.0753 U
<0.0661 U
< 0.0700 U
< 0.0684 U
< 0.0687 U
< 0.0722 U
Aroclor 1221
mg/kg
< 0.0686 U
<0.0671 U
< 0.0726 U
<0.0771 U
<0.0753 U
<0.0661 U
< 0.0700 U
< 0.0684 U
< 0.0687 U
< 0.0722 U
Aroclor 1232
mg/kg
< 0.0686 U
<0.0671 U
< 0.0726 U
<0.0771 U
<0.0753 U
<0.0661 U
< 0.0700 U
< 0.0684 U
< 0.0687 U
< 0.0722 U
Aroclor 1242
mg/kg
0.286 J
0.329
0.292 JN
0.259 J
0.336
0.397
0.369 JN
0.502
0.342 J
0.604
Aroclor 1248
mg/kg
< 0.0686 U
<0.0671 U
< 0.0726 U
< 0.0771 U
<0.0753 U
<0.0661 U
< 0.0700 U
< 0.0684 U
< 0.0687 U
< 0.0722 U
Aroclor 1254
mg/kg
0.0799
0.0939
0.107
0.0914
0.103
0.0929
0.0931 J
0.112
0.102
0.158
Aroclor 1260
mg/kg
< 0.0686 U
<0.0671 U
< 0.0726 U
< 0.0771 U
<0.0753 U
<0.0661 U
< 0.0700 U
< 0.0684 U
< 0.0687 U
< 0.0722 U
Total Aroclor PCBs
mg/kg
0.366 J
0.423
0.399 J
0.351 J
0.439
0.490
0.462 J
0.614
0.444 J
0.762
General Chemistry
Total Organic Carbon
mg/kg
10,800
11,200
18,500
24,100
12,500
7,730
11,000
11,400
10,400
13,100
Percent Moisture
%
27.3
25.6
31.3
35.2
33.6
24.4
28.8
26.7
27.2
30.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-119 SD 0-2 CMP
T-119 SD 2-6 CMP
T-120 SD 0-2 CMP
T-120 SD 2-6 CMP
T-121 SD 0-2 CMP
T-121 SD 0-2 CMP TRP 1
T-121 SD 0-2 CMP TRP 2
T-121 SD 2-6 CMP
Location:
T-119
T-119
T-120
T-120
T-121
T-121
T-121
T-121
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
Lab Sample ID:
40231262001
40231262002
40231262003
40231262004
40231262007
40231262009
40231262011
40231262008
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0714 U
< 0.0676 U
< 0.0638 U
< 0.0623 U
< 0.0670 U
< 0.0676 U
< 0.0682 U
< 0.0659 U
Aroclor 1221
mg/kg
< 0.0714 U
< 0.0676 U
< 0.0638 U
< 0.0623 U
< 0.0670 U
< 0.0676 U
< 0.0682 U
< 0.0659 U
Aroclor 1232
mg/kg
< 0.0714 U
< 0.0676 U
< 0.0638 U
< 0.0623 U
< 0.0670 U
< 0.0676 U
< 0.0682 U
< 0.0659 U
Aroclor 1242
mg/kg
0.230 J
0.213
0.144 JN
0.110 J
0.224 J
0.212 JN
0.218 JN
0.251
Aroclor 1248
mg/kg
< 0.0714 U
< 0.0676 U
< 0.0638 U
< 0.0623 U
< 0.0670 U
< 0.0676 U
< 0.0682 U
< 0.0659 U
Aroclor 1254
mg/kg
0.0624 J
0.0534 J
0.0276 J
< 0.0623 U
0.0523 J
0.0585 J
0.0491 J
0.0593 J
Aroclor 1260
mg/kg
< 0.0714 U
< 0.0676 U
< 0.0638 U
< 0.0623 U
< 0.0670 U
< 0.0676 U
< 0.0682 U
< 0.0659 U
Total Aroclor PCBs
mg/kg
0.292 J
0.266 J
0.172 J
0.110 J
0.276 J
0.270 J
0.267 J
0.310 J
General Chemistry
Total Organic Carbon
mg/kg
8,300
9,560
5,670 J
2,640 J
9,040
10,500 J
7,490
4,800
Percent Moisture
%
30.2
25.9
21.9
19.9
25.4
26.3
26.8
24.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
32/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-121 SD 2-6 CMP TRP 1
T-121 SD 2-6 CMP TRP 2
T-122 SD 0-2 CMP
T-122 SD 2-6 CMP
T-123 SD 0-2 CMP
T-123 SD 2-6 CMP
T-124 SD 0-2 CMP
T-124 SD 2-6 CMP
T-125 SD 0-2 CMP
Location:
T-121
T-121
T-122
T-122
T-123
T-123
T-124
T-124
T-125
Sample Depth Range (inches)
2-6
2-6
2-6
0-2
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
Lab Sample ID:
40231262010
40231262012
40231262014
40231262013
40231262015
40231262016
40231262017
40231262018
40231262019
PCB Aroclors
Aroclor 1016
mg/kg
<0.0671 U
< 0.0657 U
< 0.0694 U
< 0.0662 U
< 0.0728 U
< 0.0693 U
< 0.0722 U
< 0.0705 U
< 0.0740 U
Aroclor 1221
mg/kg
<0.0671 U
< 0.0657 U
< 0.0694 U
< 0.0662 U
< 0.0728 U
< 0.0693 U
< 0.0722 U
< 0.0705 U
< 0.0740 U
Aroclor 1232
mg/kg
<0.0671 U
< 0.0657 U
< 0.0694 U
< 0.0662 U
< 0.0728 U
< 0.0693 U
< 0.0722 U
< 0.0705 U
< 0.0740 U
Aroclor 1242
mg/kg
0.265 J
0.298 J
0.147 J
0.265
0.191 J
0.158 JN
0.307 J
0.299 JN
0.154 J
Aroclor 1248
mg/kg
<0.0671 U
< 0.0657 U
< 0.0694 U
< 0.0662 U
< 0.0728 U
< 0.0693 U
< 0.0722 U
< 0.0705 U
< 0.0740 U
Aroclor 1254
mg/kg
0.0647 J
0.0569 J
0.0538 J
0.0741 J
0.0535 J
0.0472 J
0.0944
0.0896
0.0463 J
Aroclor 1260
mg/kg
<0.0671 U
< 0.0657 U
< 0.0694 U
< 0.0662 U
< 0.0728 U
< 0.0693 U
< 0.0722 U
< 0.0705 U
< 0.0740 U
Total Aroclor PCBs
mg/kg
0.330 J
0.355 J
0.200 J
0.339 J
0.245 J
0.205 J
0.402 J
0.389 J
0.201 J
General Chemistry
Total Organic Carbon
mg/kg
10,600
6,120
8,280
7,810
5,760
9,470
14,500
12,500
10,900
Percent Moisture
%
25.6
24.0
27.8
24.3
31.4
28.0
30.9
29.3
32.6
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
33/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-125 SD 2-6 CMP
T-126 SD 0-2 CMP
T-126 SD 2-6 CMP
T-127 SD 0-2 CMP
T-127 SD 2-6 CMP
T-128 SD 0-2 CMP
T-128 SD 2-6 CMP
T-129 SD 0-2 CMP
T-129 SD 2-6 CMP
T-130 SD 0-2 CMP
Location:
T-125
T-126
T-126
T-127
T-127
T-128
T-128
T-129
T-129
T-130
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
Lab Sample ID:
40231262020
40231261003
40231261004
40231261005
40231261006
40231261007
40231261008
40231261009
40231261010
40231261011
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0684 U
<0.0761 U
<0.0713 U
<0.0681 U
< 0.0642 U
<0.0631 U
< 0.0664 U
< 0.0683 U
< 0.0663 U
<0.0713 U
Aroclor 1221
mg/kg
< 0.0684 U
<0.0761 U
<0.0713 U
<0.0681 U
< 0.0642 U
<0.0631 U
< 0.0664 U
< 0.0683 U
< 0.0663 U
<0.0713 U
Aroclor 1232
mg/kg
< 0.0684 U
<0.0761 U
<0.0713 U
<0.0681 U
< 0.0642 U
<0.0631 U
< 0.0664 U
< 0.0683 U
< 0.0663 U
<0.0713 U
Aroclor 1242
mg/kg
0.393
0.238 J
0.328
0.283
0.145
0.242
0.248
0.143 JN
0.144
0.296 J
Aroclor 1248
mg/kg
< 0.0684 U
<0.0761 U
<0.0713 U
< 0.0681 U
< 0.0642 U
<0.0631 U
< 0.0664 U
< 0.0683 U
< 0.0663 U
<0.0713 U
Aroclor 1254
mg/kg
0.0867
0.0730 J
0.0697 J
0.0622 J
0.0381 J
0.0540 J
0.0602 J
0.0537 J
0.0306 J
0.0689 J
Aroclor 1260
mg/kg
< 0.0684 U
<0.0761 U
<0.0713 U
< 0.0681 U
< 0.0642 U
<0.0631 U
< 0.0664 U
< 0.0683 U
< 0.0663 U
<0.0713 U
Total Aroclor PCBs
mg/kg
0.480
0.311 J
0.397 J
0.345 J
0.183 J
0.296 J
0.308 J
0.197 J
0.175 J
0.364 J
General Chemistry
Total Organic Carbon
mg/kg
10,500
13,700
8,280
8,930
6,510
7,760
7,450
12,600
13,600
7,920
Percent Moisture
%
27.1
34.4
29.9
26.5
22.1
21.1
24.9
27.0
24.7
29.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-130 SD 0-2 CMP DUP
T-130 SD 2-6 CMP
T-130 SD 2-6 CMP DUP
T-131 SD 0-2 CMP
T-131 SD 2-6 CMP
T-132 SD 0-2 CMP
T-132 SD 2-6 CMP
T-133 SD 0-2 CMP
T-133 SD 2-6 CMP
Location:
T-130
T-130
T-130
T-131
T-131
T-132
T-132
T-133
T-133
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/3/2021
8/4/2021
8/4/2021
Lab Sample ID:
40231261013
40231261012
40231261014
40231261017
40231261018
40231261019
40231261020
40231260001
40231260002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0654 U
< 0.0690 U
< 0.0709 U
<0.0721 U
< 0.0679 U
< 0.0655 U
< 0.0686 U
< 0.0652 U
< 0.0681 U
Aroclor 1221
mg/kg
< 0.0654 U
< 0.0690 U
< 0.0709 U
<0.0721 U
< 0.0679 U
< 0.0655 U
< 0.0686 U
< 0.0652 U
< 0.0681 U
Aroclor 1232
mg/kg
< 0.0654 U
< 0.0690 U
< 0.0709 U
<0.0721 U
< 0.0679 U
< 0.0655 U
< 0.0686 U
< 0.0652 U
< 0.0681 U
Aroclor 1242
mg/kg
0.214 J
0.198 J
0.162 J
0.167 J
0.179
0.194
0.350
0.196 J
0.217 J
Aroclor 1248
mg/kg
< 0.0654 U
< 0.0690 U
< 0.0709 U
<0.0721 U
< 0.0679 U
< 0.0655 U
< 0.0686 U
< 0.0652 U
< 0.0681 U
Aroclor 1254
mg/kg
0.0529 J
0.0454 J
0.0442 J
0.0436 J
0.0463 J
0.0407 J
0.0654 J
0.0452 J
0.0423 J
Aroclor 1260
mg/kg
< 0.0654 U
< 0.0690 U
< 0.0709 U
<0.0721 U
< 0.0679 U
< 0.0655 U
< 0.0686 U
< 0.0652 U
< 0.0681 U
Total Aroclor PCBs
mg/kg
0.267 J
0.244 J
0.206 J
0.211 J
0.225 J
0.234 J
0.415 J
0.241 J
0.259 J
General Chemistry
Total Organic Carbon
mg/kg
6,920
15,300
11,100
9,930
10,400
6,300
7,790
5,590
15,200
Percent Moisture
%
23.8
27.3
29.5
30.7
26.4
23.9
27.1
23.6
26.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-134 SD 0-2 CMP
T-134 SD 2-6 CMP
T-135 SD 0-2 CMP
T-135 SD 2-6 CMP
T-136 SD 0-2 CMP
T-136 SD 2-6 CMP
T-137 SD 0-2 CMP
T-137 SD 2-6 CMP
T-138 SD 0-2 CMP
T-138 SD 2-6 CMP
Location:
T-134
T-134
T-135
T-135
T-136
T-136
T-137
T-137
T-138
T-138
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
Lab Sample ID:
40231260003
40231260004
40231260005
40231260006
40231260009
40231260010
40231260011
40231260012
40231260013
40231260014
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0712 U
< 0.0710 U
<0.0653 U
< 0.0654 U
< 0.0619 U
< 0.0636 U
< 0.0687 U
< 0.0646 U
< 0.0690 U
< 0.0705 U
Aroclor 1221
mg/kg
< 0.0712 U
< 0.0710 U
<0.0653 U
< 0.0654 U
< 0.0619 U
< 0.0636 U
< 0.0687 U
< 0.0646 U
< 0.0690 U
< 0.0705 U
Aroclor 1232
mg/kg
< 0.0712 U
< 0.0710 U
<0.0653 U
< 0.0654 U
< 0.0619 U
< 0.0636 U
< 0.0687 U
< 0.0646 U
< 0.0690 U
< 0.0705 U
Aroclor 1242
mg/kg
0.360 J
0.347 JN
0.209 JN
0.323
0.228
0.353
0.404 J
0.240 J
0.300
0.307 J
Aroclor 1248
mg/kg
< 0.0712 U
< 0.0710 U
<0.0653 U
< 0.0654 U
< 0.0619 U
< 0.0636 U
< 0.0687 U
< 0.0646 U
< 0.0690 U
< 0.0705 U
Aroclor 1254
mg/kg
0.0905
0.0905
0.0498 J
0.0669
0.0516 J
0.0886
0.0770
0.0414 J
0.0711
0.0817
Aroclor 1260
mg/kg
< 0.0712 U
< 0.0710 U
<0.0653 U
< 0.0654 U
< 0.0619 U
< 0.0636 U
< 0.0687 U
< 0.0646 U
< 0.0690 U
< 0.0705 U
Total Aroclor PCBs
mg/kg
0.451 J
0.437 J
0.258 J
0.390
0.280 J
0.442
0.481 J
0.281 J
0.371
0.388 J
General Chemistry
Total Organic Carbon
mg/kg
11,400
13,300
6,410
4,990
7,390
8,440
8,780
10,100
3,050
6,760
Percent Moisture
%
29.8
29.4
23.5
23.3
19.0
21.6
27.3
22.7
27.3
28.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-139 SD 0-2 CMP
T-139 SD 2-6 CMP
T-140 SD 0-2 CMP
T-140 SD 2-6 CMP
T-141 SD 0-2 CMP
T-141 SD 0-2 CMP TRP 1
T-141 SD 0-2 CMP TRP 2
T-141 SD 2-6 CMP
Location:
T-139
T-139
T-140
T-140
T-141
T-141
T-141
T-141
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
8/4/2021
Lab Sample ID:
40231260015
40231260016
40231260017
40231260018
40231260021
40231260023
40231260025
40231260022
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0616 U
< 0.0624 U
< 0.0746 U
< 0.0868 U
< 0.0720 U
< 0.0665 U
< 0.0717 U
< 0.0720 U
Aroclor 1221
mg/kg
< 0.0616 U
< 0.0624 U
< 0.0746 U
< 0.0868 U
< 0.0720 U
< 0.0665 U
< 0.0717 U
< 0.0720 U
Aroclor 1232
mg/kg
< 0.0616 U
< 0.0624 U
< 0.0746 U
< 0.0868 U
< 0.0720 U
< 0.0665 U
< 0.0717 U
< 0.0720 U
Aroclor 1242
mg/kg
0.102 J
0.208
0.277
0.273
0.355
0.333
0.267
0.352 J
Aroclor 1248
mg/kg
< 0.0616 U
< 0.0624 U
< 0.0746 U
< 0.0868 U
< 0.0720 U
< 0.0665 U
< 0.0717 U
< 0.0720 U
Aroclor 1254
mg/kg
0.0215 J
0.0469 J
0.0438 J
0.0356 J
0.117
0.0847
0.0684 J
0.103
Aroclor 1260
mg/kg
< 0.0616 U
< 0.0624 U
< 0.0746 U
< 0.0868 U
< 0.0720 U
< 0.0665 U
< 0.0717 U
< 0.0720 U
Total Aroclor PCBs
mg/kg
0.124 J
0.255 J
0.321 J
0.309 J
0.473
0.418
0.336 J
0.455 J
General Chemistry
Total Organic Carbon
mg/kg
3,300
4,160
18,000 J
23,100
10,100
12,700
5,850
16,400
Percent Moisture
%
19.1
20.0
33.0
42.4
30.8
24.9
30.5
30.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-141 SD 2-6 CMP TRP 1
T-141 SD 2-6 CMP TRP 2
T-142 SD 0-2 CMP
T-142 SD 2-6 CMP
T-143 SD 0-2 CMP
T-143 SD 2-6 CMP
T-144 SD 0-2 CMP
T-144 SD 2-6 CMP
T-145 SD 0-2 CMP
Location:
T-141
T-141
T-142
T-142
T-143
T-143
T-144
T-144
T-145
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/4/2021
8/4/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
Lab Sample ID:
40231260024
40231260026
40231455001
40231455002
40231455003
40231455004
40231455005
40231455006
40231455007
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0663 U
< 0.0663 U
< 0.0626 U
<0.0661 U
< 0.0696 U
< 0.0725 U
< 0.0676 U
< 0.0627 U
<0.0631 U
Aroclor 1221
mg/kg
< 0.0663 U
< 0.0663 U
< 0.0626 U
<0.0661 U
< 0.0696 U
< 0.0725 U
< 0.0676 U
< 0.0627 U
<0.0631 U
Aroclor 1232
mg/kg
< 0.0663 U
< 0.0663 U
< 0.0626 U
<0.0661 U
< 0.0696 U
< 0.0725 U
< 0.0676 U
< 0.0627 U
<0.0631 U
Aroclor 1242
mg/kg
0.280 J
0.389
0.143
0.217
0.145
0.244
0.375
0.465
0.180
Aroclor 1248
mg/kg
< 0.0663 U
< 0.0663 U
< 0.0626 U
<0.0661 U
< 0.0696 U
< 0.0725 U
< 0.0676 U
< 0.0627 U
<0.0631 U
Aroclor 1254
mg/kg
0.0697
0.0792
0.0312 J
0.0599 J
0.0323 J
0.0464 J
0.0733
0.0665
0.0426 J
Aroclor 1260
mg/kg
< 0.0663 U
< 0.0663 U
< 0.0626 U
<0.0661 U
< 0.0696 U
< 0.0725 U
< 0.0676 U
< 0.0627 U
<0.0631 U
Total Aroclor PCBs
mg/kg
0.349 J
0.469
0.174 J
0.276 J
0.177 J
0.290 J
0.448
0.532
0.223 J
General Chemistry
Total Organic Carbon
mg/kg
5,650
7,020
2,920
6,440 J
11,800
14,200
7,230
3,600
4,670
Percent Moisture
%
24.8
24.8
20.2
24.5
27.9
30.9
26.3
20.6
20.9
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-145 SD 2-6 CMP
T-146 SD 0-2 CMP
T-146 SD 2-6 CMP
T-147 SD 0-2 CMP
T-147 SD 2-6 CMP
T-148 SD 0-2 CMP
T-148 SD 2-6 CMP
T-149 SD 0-2 CMP
T-149 SD 2-6 CMP
T-150 SD 0-2 CMP
Location:
T-145
T-146
T-146
T-147
T-147
T-148
T-148
T-149
T-149
T-150
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
Lab Sample ID:
40231455008
40231455011
40231455012
40231455013
40231455014
40231455015
40231455016
40231455017
40231455018
40231455019
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0646 U
< 0.0668 U
<0.0661 U
< 0.0670 U
< 0.0662 U
< 0.0612 U
< 0.0623 U
< 0.0626 U
< 0.0608 U
< 0.0636 U
Aroclor 1221
mg/kg
< 0.0646 U
< 0.0668 U
<0.0661 U
< 0.0670 U
< 0.0662 U
< 0.0612 U
< 0.0623 U
< 0.0626 U
< 0.0608 U
< 0.0636 U
Aroclor 1232
mg/kg
< 0.0646 U
< 0.0668 U
<0.0661 U
< 0.0670 U
< 0.0662 U
< 0.0612 U
< 0.0623 U
< 0.0626 U
< 0.0608 U
< 0.0636 U
Aroclor 1242
mg/kg
0.516
0.194 J
0.447
0.262
0.241 J
0.247
0.607
0.711
0.119
0.128
Aroclor 1248
mg/kg
< 0.0646 U
< 0.0668 U
<0.0661 U
< 0.0670 U
< 0.0662 U
< 0.0612 U
< 0.0623 U
< 0.0626 U
< 0.0608 U
< 0.0636 U
Aroclor 1254
mg/kg
0.0668
0.0619 J
0.102
0.0727
0.0768
0.0371 J
0.0915
0.0733
0.0310 J
0.0314 J
Aroclor 1260
mg/kg
< 0.0646 U
< 0.0668 U
<0.0661 U
< 0.0670 U
< 0.0662 U
< 0.0612 U
< 0.0623 U
< 0.0626 U
< 0.0608 U
< 0.0636 U
Total Aroclor PCBs
mg/kg
0.582
0.256 J
0.548
0.335
0.317 J
0.284 J
0.698
0.784
0.150 J
0.159 J
General Chemistry
Total Organic Carbon
mg/kg
6,470
7,680
8,730
7,330
5,610
3,620
4,610
3,770
2,480
2,170
Percent Moisture
%
22.7
25.3
24.5
25.4
24.2
18.5
19.9
20.1
18.0
21.6
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
39/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-150 SD 0-2 CMP DUP
T-150 SD 2-6 CMP
T-150 SD 2-6 CMP DUP
T-151 SD 0-2 CMP
T-151 SD 2-6 CMP
T-152 SD 0-2 CMP
T-152 SD 2-6 CMP
T-153 SD 0-2 CMP
T-153 SD 2-6 CMP
Location:
T-150
T-150
T-150
T-151
T-151
T-152
T-152
T-153
T-153
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/9/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
Lab Sample ID:
40231469001
40231455020
40231469002
40231469005
40231469006
40231469007
40231469008
40231469009
40231469010
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0615 U
< 0.0637 U
<0.0633 U
< 0.0636 U
< 0.0656 U
< 0.0641 U
< 0.0647 U
<0.0631 U
< 0.0634 U
Aroclor 1221
mg/kg
< 0.0615 U
< 0.0637 U
<0.0633 U
< 0.0636 U
< 0.0656 U
< 0.0641 U
< 0.0647 U
<0.0631 U
< 0.0634 U
Aroclor 1232
mg/kg
< 0.0615 U
< 0.0637 U
< 0.0633 U
< 0.0636 U
< 0.0656 U
< 0.0641 U
< 0.0647 U
<0.0631 U
< 0.0634 U
Aroclor 1242
mg/kg
0.163
0.185
0.188
0.147
0.234 J
0.306
0.513
0.229
0.279
Aroclor 1248
mg/kg
< 0.0615 U
< 0.0637 U
< 0.0633 U
< 0.0636 U
< 0.0656 U
< 0.0641 U
< 0.0647 U
<0.0631 U
< 0.0634 U
Aroclor 1254
mg/kg
0.0350 J
0.0504 J
0.0490 J
0.0402 J
0.0540 J
0.0614 J
0.101
0.0624 J
0.0670
Aroclor 1260
mg/kg
< 0.0615 U
< 0.0637 U
< 0.0633 U
< 0.0636 U
< 0.0656 U
< 0.0641 U
< 0.0647 U
<0.0631 U
< 0.0634 U
Total Aroclor PCBs
mg/kg
0.198 J
0.235 J
0.237 J
0.187 J
0.288 J
0.367 J
0.614
0.291 J
0.346
General Chemistry
Total Organic Carbon
mg/kg
2,580
4,820
4,370
5,030
5,020
5,100
3,720
7,230 J
6,370
Percent Moisture
%
18.9
21.7
21.1
21.3
23.5
22.3
22.8
21.0
21.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-154 SD 0-2 CMP
T-154 SD 2-6 CMP
T-155 SD 0-2 CMP
T-155 SD 2-6 CMP
T-156 SD 0-2 CMP
T-156 SD 2-6 CMP
T-157 SD 0-2 CMP
T-157 SD 2-6 CMP
T-158 SD 0-2 CMP
T-158 SD 2-6 CMP
Location:
T-154
T-154
T-155
T-155
T-156
T-156
T-157
T-157
T-158
T-158
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
Lab Sample ID:
40231469011
40231469012
40231469013
40231469014
40231469017
40231469018
40231469019
40231469020
40231452001
40231452002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0664 U
< 0.0659 U
< 0.0642 U
< 0.0614 U
<0.0691 U
< 0.0672 U
< 0.0628 U
< 0.0655 U
< 0.0615 U
< 0.0629 U
Aroclor 1221
mg/kg
< 0.0664 U
< 0.0659 U
< 0.0642 U
< 0.0614 U
<0.0691 U
< 0.0672 U
< 0.0628 U
< 0.0655 U
< 0.0615 U
< 0.0629 U
Aroclor 1232
mg/kg
< 0.0664 U
< 0.0659 U
< 0.0642 U
< 0.0614 U
<0.0691 U
< 0.0672 U
< 0.0628 U
< 0.0655 U
< 0.0615 U
< 0.0629 U
Aroclor 1242
mg/kg
0.217
0.160
0.235 J
0.313
0.202 J
0.217 JN
0.218
0.383
0.113
0.138 J
Aroclor 1248
mg/kg
< 0.0664 U
< 0.0659 U
< 0.0642 U
< 0.0614 U
<0.0691 U
< 0.0672 U
< 0.0628 U
< 0.0655 U
< 0.0615 U
< 0.0629 U
Aroclor 1254
mg/kg
0.0592 J
0.0390 J
0.0615 J
0.0812
0.0540 J
0.0500 J
0.0482 J
0.0594 J
0.0209 J
0.0323 J
Aroclor 1260
mg/kg
< 0.0664 U
< 0.0659 U
< 0.0642 U
< 0.0614 U
<0.0691 U
< 0.0672 U
< 0.0628 U
< 0.0655 U
< 0.0615 U
< 0.0629 U
Total Aroclor PCBs
mg/kg
0.276 J
0.199 J
0.296 J
0.395
0.256 J
0.267 J
0.266 J
0.442 J
0.133 J
0.171 J
General Chemistry
Total Organic Carbon
mg/kg
5,190
8,020
4,230
6,040
9,810
9,970
4,870
8,060
2,650
4,440
Percent Moisture
%
24.5
24.3
22.4
18.7
27.5
25.5
20.6
23.7
19.0
20.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-159 SD 0-2 CMP
T-159 SD 2-6 CMP
T-160 SD 0-2 CMP
T-160 SD 2-6 CMP
T-161 SD 0-2 CMP
T-161 SD 0-2 CMP TRP 1
T-161 SD 0-2 CMP TRP 2
T-161 SD 2-6 CMP
Location:
T-159
T-159
T-160
T-160
T-161
T-161
T-161
T-161
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
8/10/2021
Lab Sample ID:
40231452003
40231452004
40231452005
40231452006
40231452009
40231452011
40231452013
40231452010
PCB Aroclors
Aroclor 1016
mg/kg
<0.0601 U
< 0.0685 U
< 0.0645 U
< 0.0648 U
< 0.0635 U
< 0.0603 U
< 0.0600 U
< 0.0604 U
Aroclor 1221
mg/kg
<0.0601 U
< 0.0685 U
< 0.0645 U
< 0.0648 U
< 0.0635 U
< 0.0603 U
< 0.0600 U
< 0.0604 U
Aroclor 1232
mg/kg
<0.0601 U
< 0.0685 U
< 0.0645 U
< 0.0648 U
< 0.0635 U
< 0.0603 U
< 0.0600 U
< 0.0604 U
Aroclor 1242
mg/kg
0.0830
0.123 J
0.141
0.149
0.0901 JN
0.201
0.170
0.169
Aroclor 1248
mg/kg
<0.0601 U
< 0.0685 U
< 0.0645 U
< 0.0648 U
< 0.0635 U
< 0.0603 U
< 0.0600 U
< 0.0604 U
Aroclor 1254
mg/kg
<0.0601 U
0.0274 J
0.0294 J
0.0266 J
< 0.0635 U
0.0314 J
0.0424 J
0.0280 J
Aroclor 1260
mg/kg
<0.0601 U
< 0.0685 U
< 0.0645 U
< 0.0648 U
< 0.0635 U
< 0.0603 U
< 0.0600 U
< 0.0604 U
Total Aroclor PCBs
mg/kg
0.0830
0.151 J
0.170 J
0.176 J
0.0901 J
0.233 J
0.213 J
0.197 J
General Chemistry
Total Organic Carbon
mg/kg
2,760
16,200
2,740
5,320 J
6,170
7,800
3,230
4,690
Percent Moisture
%
17.0
27.0
22.5
22.8
21.1
17.0
16.6
17.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-161 SD 2-6 CMP TRP 1
T-161 SD 2-6 CMP TRP 2
T-162 SD 0-2 CMP
T-162 SD 2-6 CMP
T-163 SD 0-2 CMP
T-163 SD 2-6 CMP
T-164 SD 0-2 CMP
T-164 SD 2-6 CMP
T-165 SD 0-2 CMP
Location:
T-161
T-161
T-162
T-162
T-163
T-163
T-164
T-164
T-165
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/10/2021
8/10/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
Lab Sample ID:
40231452012
40231452014
40231642001
40231642002
40231642003
40231642004
40231642005
40231642006
40231642007
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0616 U
<0.0611 U
< 0.0617 U
< 0.0615 U
< 0.0630 U
<0.0721 U
< 0.0582 U
< 0.0606 U
< 0.0687 U
Aroclor 1221
mg/kg
< 0.0616 U
<0.0611 U
< 0.0617 U
< 0.0615 U
< 0.0630 U
<0.0721 U
< 0.0582 U
< 0.0606 U
< 0.0687 U
Aroclor 1232
mg/kg
< 0.0616 U
<0.0611 U
< 0.0617 U
< 0.0615 U
< 0.0630 U
<0.0721 U
< 0.0582 U
< 0.0606 U
< 0.0687 U
Aroclor 1242
mg/kg
0.195
0.183
0.152 J
0.542
0.0858 JN
0.112 J
0.168
0.162
0.207
Aroclor 1248
mg/kg
< 0.0616 U
<0.0611 U
< 0.0617 U
< 0.0615 U
< 0.0630 U
<0.0721 U
< 0.0582 U
< 0.0606 U
< 0.0687 U
Aroclor 1254
mg/kg
0.0437 J
0.0433 J
0.0278 J
0.0422 J
0.0228 J
0.0321 J
0.0401 J
0.0283 J
0.0617 J
Aroclor 1260
mg/kg
< 0.0616 U
<0.0611 U
< 0.0617 U
< 0.0615 U
< 0.0630 U
<0.0721 U
< 0.0582 U
< 0.0606 U
< 0.0687 U
Total Aroclor PCBs
mg/kg
0.239 J
0.226 J
0.180 J
0.584 J
0.109 J
0.145 J
0.208 J
0.190 J
0.269 J
General Chemistry
Total Organic Carbon
mg/kg
4,970
2,000
2,300
2,560
5,670
10,700
5,050
4,390
9,240
Percent Moisture
%
18.8
18.1
18.9
18.9
20.4
30.8
14.3
17.3
27.2
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-165 SD 2-6 CMP
T-166 SD 0-2 CMP
T-166 SD 2-6 CMP
T-167 SD 0-2 CMP
T-167 SD 2-6 CMP
T-168 SD 0-2 CMP
T-168 SD 2-6 CMP
T-169 SD 0-2 CMP
T-169 SD 2-6 CMP
T-170 SD 0-2 CMP
Location:
T-165
T-166
T-166
T-167
T-167
T-168
T-168
T-169
T-169
T-170
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
Lab Sample ID:
40231642008
40231642011
40231642012
40231642013
40231642014
40231642015
40231642016
40231642017
40231642018
40231642019
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0640 U
<0.0611 U
< 0.0637 U
< 0.0669 U
< 0.0652 U
< 0.0634 U
< 0.0623 U
< 0.0598 U
< 0.0606 U
< 0.0655 U
Aroclor 1221
mg/kg
< 0.0640 U
<0.0611 U
< 0.0637 U
< 0.0669 U
< 0.0652 U
< 0.0634 U
< 0.0623 U
< 0.0598 U
< 0.0606 U
< 0.0655 U
Aroclor 1232
mg/kg
< 0.0640 U
<0.0611 U
< 0.0637 U
< 0.0669 U
< 0.0652 U
< 0.0634 U
< 0.0623 U
< 0.0598 U
< 0.0606 U
< 0.0655 U
Aroclor 1242
mg/kg
0.124 J
0.155
0.151
0.124
0.469
0.170
0.188
0.0806 JN
0.0822
0.248
Aroclor 1248
mg/kg
< 0.0640 U
<0.0611 U
< 0.0637 U
< 0.0669 U
< 0.0652 U
< 0.0634 U
< 0.0623 U
< 0.0598 U
< 0.0606 U
< 0.0655 U
Aroclor 1254
mg/kg
0.0298 J
0.0408 J
0.0358 J
0.0352 J
0.0596 J
0.0375 J
0.0370 J
0.0188 J
< 0.0606 U
0.0708
Aroclor 1260
mg/kg
< 0.0640 U
<0.0611 U
< 0.0637 U
< 0.0669 U
< 0.0652 U
< 0.0634 U
< 0.0623 U
< 0.0598 U
< 0.0606 U
< 0.0655 U
Total Aroclor PCBs
mg/kg
0.153 J
0.196 J
0.186 J
0.159 J
0.529 J
0.207 J
0.225 J
0.0994 J
0.0822
0.318
General Chemistry
Total Organic Carbon
mg/kg
6,450
4,640
11,900 J
8,930
6,570
2,710
6,890
2,970
6,570
10,900 J
Percent Moisture
%
22.1
18.2
21.7
25.4
23.2
21.0
19.8
16.2
17.8
23.8
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-170 SD 0-2 CMP DUP
T-170 SD 2-6 CMP
T-170 SD 2-6 CMP DUP
T-171 SD 0-2 CMP
T-171 SD 2-6 CMP
T-172 SD 0-2 CMP
T-172 SD 2-6 CMP
T-173 SD 0-2 CMP
T-173 SD 2-6 CMP
Location:
T-170
T-170
T-170
T-171
T-171
T-172
T-172
T-173
T-173
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
Lab Sample ID:
40231861001
40231642020
40231861002
40231861005
40231861006
40231861007
40231861008
40231861009
40231861010
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0695 U
< 0.0729 U
< 0.0723 U
< 0.0682 U
< 0.0707 U
< 0.0661 U
< 0.0744 U
< 0.0716 U
< 0.0708 U
Aroclor 1221
mg/kg
< 0.0695 U
< 0.0729 U
< 0.0723 U
< 0.0682 U
< 0.0707 U
< 0.0661 U
< 0.0744 U
< 0.0716 U
< 0.0708 U
Aroclor 1232
mg/kg
< 0.0695 U
< 0.0729 U
< 0.0723 U
< 0.0682 U
< 0.0707 U
< 0.0661 U
< 0.0744 U
< 0.0716 U
< 0.0708 U
Aroclor 1242
mg/kg
0.219 J
0.220 J
0.216
0.460
0.413
0.153
0.196
0.179
0.141 J
Aroclor 1248
mg/kg
< 0.0695 U
< 0.0729 U
< 0.0723 U
< 0.0682 U
< 0.0707 U
< 0.0661 U
< 0.0744 U
< 0.0716 U
< 0.0708 U
Aroclor 1254
mg/kg
0.0607 J
0.0455 J
0.0426 J
0.0881
0.0836
0.0318 J
0.0386 J
0.0398 J
0.0268 J
Aroclor 1260
mg/kg
< 0.0695 U
< 0.0729 U
< 0.0723 U
< 0.0682 U
< 0.0707 U
< 0.0661 U
< 0.0744 U
< 0.0716 U
< 0.0708 U
Total Aroclor PCBs
mg/kg
0.279 J
0.265 J
0.259 J
0.549
0.497
0.185
0.234
0.219 J
0.167 J
General Chemistry
Total Organic Carbon
mg/kg
6,030 J
8,750 J
17,900 J
8,040
12,700
11,400
16,300
14,300
13,500
Percent Moisture
%
28.1
31.5
30.7
26.7
29.3
24.1
32.8
30.1
29.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
45/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-174 SD 0-2 CMP
T-174 SD 2-6 CMP
T-175 SD 0-2 CMP
T-175 SD 2-6 CMP
T-176 SD 0-2 CMP
T-176 SD 2-6 CMP
T-177 SD 0-2 CMP
T-177 SD 2-6 CMP
T-178 SD 0-2 CMP
T-178 SD 2-6 CMP
Location:
T-174
T-174
T-175
T-175
T-176
T-176
T-177
T-177
T-178
T-178
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/11/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
Lab Sample ID:
40231861011
40231861012
40231861013
40231861014
40231861017
40231861018
40231649001
40231649002
40231649003
40231649004
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0665 U
< 0.0680 U
< 0.0706 U
< 0.0805 U
< 0.0679 U
<0.0721 U
< 0.0684 U
< 0.0723 U
< 0.0668 U
< 0.0679 U
Aroclor 1221
mg/kg
< 0.0665 U
< 0.0680 U
< 0.0706 U
< 0.0805 U
< 0.0679 U
<0.0721 U
< 0.0684 U
< 0.0723 U
< 0.0668 U
< 0.0679 U
Aroclor 1232
mg/kg
< 0.0665 U
< 0.0680 U
< 0.0706 U
< 0.0805 U
< 0.0679 U
<0.0721 U
< 0.0684 U
< 0.0723 U
< 0.0668 U
< 0.0679 U
Aroclor 1242
mg/kg
0.191
0.118 J
0.142
0.0771 J
0.263
0.338 J
0.368
0.378
0.205
0.404
Aroclor 1248
mg/kg
< 0.0665 U
< 0.0680 U
< 0.0706 U
< 0.0805 U
< 0.0679 U
<0.0721 U
< 0.0684 U
< 0.0723 U
< 0.0668 U
< 0.0679 U
Aroclor 1254
mg/kg
0.0474 J
< 0.0680 U
< 0.0706 U
< 0.0805 U
0.0615 J
0.0851
0.0543 J
0.111
0.0452 J
0.0783
Aroclor 1260
mg/kg
< 0.0665 U
< 0.0680 U
< 0.0706 U
< 0.0805 U
< 0.0679 U
<0.0721 U
< 0.0684 U
< 0.0723 U
< 0.0668 U
< 0.0679 U
Total Aroclor PCBs
mg/kg
0.238
0.118 J
0.142
0.0771 J
0.324 J
0.423 J
0.422 J
0.488
0.251 J
0.482
General Chemistry
Total Organic Carbon
mg/kg
6,400
8,390
11,500
37,400
8,800
12,300
6,030
11,400
4,080
8,080
Percent Moisture
%
24.9
26.7
29.4
37.9
26.1
30.8
26.8
30.8
25.3
26.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
46/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-179 SD 0-2 CMP
T-179 SD 2-6 CMP
T-180 SD 0-2 CMP
T-180 SD 2-6 CMP
T-181 SD 0-2 CMP
T-181 SD 0-2 CMP TRP 1
T-181 SD 0-2 CMP TRP 2
T-181 SD 2-6 CMP
Location:
T-179
T-179
T-180
T-180
T-181
T-181
T-181
T-181
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
0-2
0-2
2-6
Sample Date:
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
Lab Sample ID:
40231649005
40231649006
40231649007
40231649008
40231649013
40231649015
40231649017
40231649014
PCB Aroclors
Aroclor 1016
mg/kg
<0.0631 U
< 0.0664 U
< 0.0638 U
< 0.0656 U
<0.0653 U
< 0.0669 U
< 0.0716 U
< 0.0692 U
Aroclor 1221
mg/kg
<0.0631 U
< 0.0664 U
< 0.0638 U
< 0.0656 U
<0.0653 U
< 0.0669 U
< 0.0716 U
< 0.0692 U
Aroclor 1232
mg/kg
<0.0631 U
< 0.0664 U
< 0.0638 U
< 0.0656 U
<0.0653 U
< 0.0669 U
< 0.0716 U
< 0.0692 U
Aroclor 1242
mg/kg
0.291
0.385
0.610
0.386
0.302
0.217 J
0.296
0.441
Aroclor 1248
mg/kg
<0.0631 U
< 0.0664 U
< 0.0638 U
< 0.0656 U
<0.0653 U
< 0.0669 U
< 0.0716 U
< 0.0692 U
Aroclor 1254
mg/kg
0.0908
0.0733
0.157
0.118 J
0.0732
0.0568 J
0.0881
0.117
Aroclor 1260
mg/kg
<0.0631 U
< 0.0664 U
< 0.0638 U
< 0.0656 U
<0.0653 U
< 0.0669 U
< 0.0716 U
< 0.0692 U
Total Aroclor PCBs
mg/kg
0.382
0.458
0.767
0.504 J
0.375
0.273 J
0.384
0.558
General Chemistry
Total Organic Carbon
mg/kg
4,810
10,100
2,330 J
3,800 J
3,180
8,110
9,150
7,960
Percent Moisture
%
20.7
24.8
21.6
23.9
23.6
25.4
30.2
27.7
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-181 SD 2-6 CMP TRP 1
T-181 SD 2-6 CMP TRP 2
T-182 SD 0-2 CMP
T-182 SD 2-6 CMP
T-183 SD 0-2 CMP
T-183 SD 2-6 CMP
T-184 SD 0-2 CMP
T-184 SD 2-6 CMP
T-185 SD 0-2 CMP
Location:
T-181
T-181
T-182
T-182
T-183
T-183
T-184
T-184
T-185
Sample Depth Range (inches)
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
8/12/2021
Lab Sample ID:
40231649016
40231649018
40231649019
40231649020
40231649021
40231649022
40231649023
40231649024
40231696001
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0672 U
< 0.0682 U
< 0.0658 U
< 0.0634 U
< 0.0655 U
< 0.0662 U
< 0.0649 U
< 0.0632 U
<0.0633 U
Aroclor 1221
mg/kg
< 0.0672 U
< 0.0682 U
< 0.0658 U
< 0.0634 U
< 0.0655 U
< 0.0662 U
< 0.0649 U
< 0.0632 U
<0.0633 U
Aroclor 1232
mg/kg
< 0.0672 U
< 0.0682 U
< 0.0658 U
< 0.0634 U
< 0.0655 U
< 0.0662 U
< 0.0649 U
< 0.0632 U
<0.0633 U
Aroclor 1242
mg/kg
0.319
0.357 J
0.393
0.328
0.288 J
0.458
0.235
0.227
0.386
Aroclor 1248
mg/kg
< 0.0672 U
< 0.0682 U
< 0.0658 U
< 0.0634 U
< 0.0655 U
< 0.0662 U
< 0.0649 U
< 0.0632 U
<0.0633 U
Aroclor 1254
mg/kg
0.0703
0.0840
0.0965
0.0904
0.0780
0.177
0.0750
0.0620 J
0.0865
Aroclor 1260
mg/kg
< 0.0672 U
< 0.0682 U
< 0.0658 U
< 0.0634 U
< 0.0655 U
< 0.0662 U
< 0.0649 U
< 0.0632 U
<0.0633 U
Total Aroclor PCBs
mg/kg
0.389
0.441 J
0.490
0.418
0.366 J
0.635
0.310
0.289 J
0.472
General Chemistry
Total Organic Carbon
mg/kg
6,750
7,250
4,400
8,330
4,290
6,890 J
3,710
5,720
5,630
Percent Moisture
%
25.5
26.7
23.9
21.2
23.9
24.5
23.0
21.0
21.0
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-185 SD 2-6 CMP
T-186 SD 0-2 CMP
T-186 SD 2-6 CMP
T-187 SD 0-2 CMP
T-187 SD 2-6 CMP
T-188 SD 0-2 CMP
T-188 SD 2-6 CMP
T-189 SD 0-2 CMP
T-189 SD 2-6 CMP
T-190 SD 0-2 CMP
Location:
T-185
T-186
T-186
T-187
T-187
T-188
T-188
T-189
T-189
T-190
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
Sample Date:
8/12/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
Lab Sample ID:
40231696002
40231696007
40231696008
40231696009
40231696010
40231696011
40231696012
40231696013
40231693001
40231693002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0637 U
< 0.0628 U
<0.0641 U
<0.0651 U
< 0.0686 U
< 0.0634 U
< 0.0630 U
< 0.0630 U
< 0.0644 U
< 0.0645 U
Aroclor 1221
mg/kg
< 0.0637 U
< 0.0628 U
<0.0641 U
<0.0651 U
< 0.0686 U
< 0.0634 U
< 0.0630 U
< 0.0630 U
< 0.0644 U
< 0.0645 U
Aroclor 1232
mg/kg
< 0.0637 U
< 0.0628 U
<0.0641 U
<0.0651 U
< 0.0686 U
< 0.0634 U
< 0.0630 U
< 0.0630 U
< 0.0644 U
< 0.0645 U
Aroclor 1242
mg/kg
0.218
0.199
0.250
0.233
0.316
0.295
0.402
0.454
0.616
0.495 J
Aroclor 1248
mg/kg
< 0.0637 U
< 0.0628 U
<0.0641 U
< 0.0651U
< 0.0686 U
< 0.0634 U
< 0.0630 U
< 0.0630 U
< 0.0644 U
< 0.0645 U
Aroclor 1254
mg/kg
0.0620 J
0.0517 J
0.0654
0.0556 J
0.0941
0.0586 J
0.0915
0.0903
0.141
0.133
Aroclor 1260
mg/kg
< 0.0637 U
< 0.0628 U
<0.0641 U
< 0.0651U
< 0.0686 U
< 0.0634 U
< 0.0630 U
< 0.0630 U
< 0.0644 U
< 0.0645 U
Total Aroclor PCBs
mg/kg
0.280 J
0.250 J
0.316
0.289 J
0.410
0.354 J
0.494
0.544
0.757
0.628 J
General Chemistry
Total Organic Carbon
mg/kg
4,570
2,830
6,250
5,300
9,780
5,840
4,140
2,800
6,030
5,120
Percent Moisture
%
21.5
20.5
22.3
23.2
27.2
21.3
20.6
20.6
22.6
22.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-190 SD 0-2 CMP DUP
T-190 SD 2-6 CMP
T-190 SD 2-6 CMP DUP
T-191 SD 0-2 CMP
T-191 SD 2-6 CMP
T-192 SD 0-2 CMP
T-192 SD 2-6 CMP
T-193 SD 0-2 CMP
T-193 SD 2-6 CMP
Location:
T-190
T-190
T-190
T-191
T-191
T-192
T-192
T-193
T-193
Sample Depth Range (inches)
0-2
2-6
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/13/2021
8/23/2021
8/23/2021
Lab Sample ID:
40231693004
40231693003
40231693005
40231693010
40231693011
40231693012
40231693013
40232298001
40232298002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0658 U
<0.0631 U
< 0.0640 U
< 0.0654 U
< 0.0653 U
< 0.0639 U
< 0.0637 U
< 0.0636 U
< 0.0664 U
Aroclor 1221
mg/kg
< 0.0658 U
<0.0631 U
< 0.0640 U
< 0.0654 U
< 0.0653 U
< 0.0639 U
< 0.0637 U
< 0.0636 U
< 0.0664 U
Aroclor 1232
mg/kg
< 0.0658 U
<0.0631 U
< 0.0640 U
< 0.0654 U
< 0.0653 U
< 0.0639 U
< 0.0637 U
< 0.0636 U
< 0.0664 U
Aroclor 1242
mg/kg
0.274 J
0.211
0.209
0.227
0.276
0.179 J
0.193 J
0.409
0.443
Aroclor 1248
mg/kg
< 0.0658 U
<0.0631 U
< 0.0640 U
< 0.0654 U
< 0.0653 U
< 0.0639 U
< 0.0637 U
< 0.0636 U
< 0.0664 U
Aroclor 1254
mg/kg
0.0598 J
0.0440 J
0.0467 J
0.0652 J
0.0690
0.0570 J
0.0647
0.0591 J
0.0529 J
Aroclor 1260
mg/kg
< 0.0658 U
<0.0631 U
< 0.0640 U
< 0.0654 U
< 0.0653 U
< 0.0639 U
< 0.0637 U
< 0.0636 U
< 0.0664 U
Total Aroclor PCBs
mg/kg
0.334 J
0.255 J
0.256 J
0.292 J
0.345
0.236 J
0.258 J
0.468 J
0.496 J
General Chemistry
Total Organic Carbon
mg/kg
4,080
8,080
9,550
7,070
5,460
9,350
5,280
6,970
9,690
Percent Moisture
%
24.1
20.6
22.0
23.4
23.4
21.7
21.4
21.2
24.7
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-194 SD 0-2 CMP
T-194 SD 2-6 CMP
T-195 SD 0-2 CMP
T-195 SD 2-6 CMP
T-196 SD 0-2 CMP
T-196 SD 2-6 CMP
T-197 SD 0-2 CMP
T-197 SD 2-6 CMP
T-198 SD 0-2 CMP
T-198 SD 2-6 CMP
Location:
T-194
T-194
T-195
T-195
T-196
T-196
T-197
T-197
T-198
T-198
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
8/23/2021
Lab Sample ID:
40232298003
40232298004
40232298005
40232298006
40232298011
40232298012
40232298013
40232298014
40232298015
40232298016
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0604 U
< 0.0605 U
<0.0633 U
< 0.0638 U
< 0.0655 U
< 0.0723 U
< 0.0678 U
< 0.275 U
<0.0661 U
< 0.0638 U
Aroclor 1221
mg/kg
< 0.0604 U
< 0.0605 U
<0.0633 U
< 0.0638 U
< 0.0655 U
< 0.0723 U
< 0.0678 U
< 0.275 U
<0.0661 U
< 0.0638 U
Aroclor 1232
mg/kg
< 0.0604 U
< 0.0605 U
<0.0633 U
< 0.0638 U
< 0.0655 U
< 0.0723 U
< 0.0678 U
< 0.275 U
<0.0661 U
< 0.0638 U
Aroclor 1242
mg/kg
0.692
0.215
0.365
0.476
0.754
0.725
0.496
3.61
0.272
0.433 J
Aroclor 1248
mg/kg
< 0.0604 U
< 0.0605 U
<0.0633 U
< 0.0638 U
< 0.0655 U
< 0.0723 U
< 0.0678 U
< 0.275 U
<0.0661 U
< 0.0638 U
Aroclor 1254
mg/kg
0.0865 J
< 0.0605 U
0.0524 J
0.0965 J
0.162
0.153
0.0841 JN
0.470 J
0.0550 J
0.0993
Aroclor 1260
mg/kg
< 0.0604 U
< 0.0605 U
<0.0633 U
< 0.0638 U
< 0.0655 U
< 0.0723 U
< 0.0678 U
< 0.275 U
<0.0661 U
< 0.0638 U
Total Aroclor PCBs
mg/kg
0.778 J
0.215
0.417 J
0.572 J
0.916
0.878
0.580 J
4.08 J
0.327 J
0.533 J
General Chemistry
Total Organic Carbon
mg/kg
4,230
1,360
5,950
12,400
10,700
16,200
1,470
4,410
1,450
3,030
Percent Moisture
%
17.2
17.4
21.2
21.7
23.6
30.9
26.6
27.3
24.2
21.6
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-199 SD 0-2 CMP
T-199 SD 2-6 CMP
T-201 SD 0-2 CMP
T-201 SD 0-2 CMP TRP 1
T-201 SD 0-2 CMP TRP 2
T-201 SD 2-6 CMP
T-201 SD 2-6 CMP TRP 1
T-201 SD 2-6 CMP TRP 2
Location:
T-199
T-199
T-201
T-201
T-201
T-201
T-201
T-201
Sample Depth Range (inches)
0-2
2-6
0-2
0-2
0-2
2-6
2-6
2-6
Sample Date:
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
Lab Sample ID:
40232298017
40232298018
40232298019
40232303005
40232303007
40232298020
40232303006
40232303008
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0746 U
< 0.0723 U
< 0.216 U
< 0.136 U
< 0.0677 U
< 0.0667 U
< 0.0664 U
< 0.0641 U
Aroclor 1221
mg/kg
< 0.0746 U
< 0.0723 U
< 0.216 U
< 0.136 U
< 0.0677 U
< 0.0667 U
< 0.0664 U
< 0.0641 U
Aroclor 1232
mg/kg
< 0.0746 U
< 0.0723 U
< 0.216 U
< 0.136 U
< 0.0677 U
< 0.0667 U
< 0.0664 U
< 0.0641 U
Aroclor 1242
mg/kg
0.435 J
0.347
2.85
1.92
1.24
1.10
0.769
0.972
Aroclor 1248
mg/kg
< 0.0746 U
< 0.0723 U
< 0.216 U
< 0.136 U
< 0.0677 U
< 0.0667 U
< 0.0664 U
< 0.0641 U
Aroclor 1254
mg/kg
0.128
0.0886
0.274
0.242 J
0.144 J
0.160
0.133 JN
0.110 J
Aroclor 1260
mg/kg
< 0.0746 U
< 0.0723 U
< 0.216 U
< 0.136 U
< 0.0677 U
< 0.0667 U
< 0.0664 U
< 0.0641 U
Total Aroclor PCBs
mg/kg
0.563 J
0.435
3.13
2.16 J
1.39 J
1.26
0.902 J
1.08 J
General Chemistry
Total Organic Carbon
mg/kg
5,110
3,520
4,340 J
9,070
9,330
7,040
6,750
5,850
Percent Moisture
%
33.0
30.9
30.4
26.4
26.2
24.8
24.7
22.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
52/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-202 SD 0-2 CMP
T-202 SD 2-6 CMP
T-203 SD 0-2 CMP
T-203 SD 2-6 CMP
T-204 SD 0-2 CMP
T-204 SD 2-6 CMP
T-205 SD 0-2 CMP
T-205 SD 2-6 CMP
T-206 SD 0-2 CMP
T-206 SD 2-6 CMP
Location:
T-202
T-202
T-203
T-203
T-204
T-204
T-205
T-205
T-206
T-206
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
Lab Sample ID:
40232303009
40232303010
40232303011
40232303012
40232303013
40232303014
40232303015
40232303016
40232299003
40232299004
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0620 U
< 0.0650 U
<0.0633 U
< 0.0635 U
< 0.0685 U
< 0.197 U
< 0.0647 U
< 0.0645 U
< 0.0627 U
< 0.0588 U
Aroclor 1221
mg/kg
< 0.0620 U
< 0.0650 U
<0.0633 U
< 0.0635 U
< 0.0685 U
< 0.197 U
< 0.0647 U
< 0.0645 U
< 0.0627 U
< 0.0588 U
Aroclor 1232
mg/kg
< 0.0620 U
< 0.0650 U
<0.0633 U
< 0.0635 U
< 0.0685 U
< 0.197 U
< 0.0647 U
< 0.0645 U
< 0.0627 U
< 0.0588 U
Aroclor 1242
mg/kg
0.338
0.461
0.479
0.767
0.703
2.55
0.223 J
0.418
1.10 J
0.193
Aroclor 1248
mg/kg
< 0.0620 U
< 0.0650 U
<0.0633 U
< 0.0635 U
< 0.0685 U
< 0.197 U
< 0.0647 U
< 0.0645 U
< 0.0627 U
< 0.0588 U
Aroclor 1254
mg/kg
0.0481 J
0.0940
0.174 J
0.112
0.110
< 0.197 U
0.0358 J
0.0655
0.217
0.0427 J
Aroclor 1260
mg/kg
< 0.0620 U
< 0.0650 U
<0.0633 U
< 0.0635 U
< 0.0685 U
< 0.197 U
< 0.0647 U
< 0.0645 U
< 0.0627 U
< 0.0588 U
Total Aroclor PCBs
mg/kg
0.386 J
0.555
0.653 J
0.879
0.812
2.55
0.258 J
0.483
1.31 J
0.236 J
General Chemistry
Total Organic Carbon
mg/kg
1,970
3,850
5,180
5,730
8,090
7,440
3,400
3,020
3,980
2,220
Percent Moisture
%
19.3
23.1
21.0
21.2
27.0
23.9
22.8
22.5
20.3
15.2
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
53/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-207 SD 0-2 CMP
T-207 SD 2-6 CMP
T-208 SD 0-2 CMP
T-208 SD 2-6 CMP
T-209 SD 0-2 CMP
T-209 SD 2-6 CMP
T-210 SD 0-2 CMP
T-210 SD 0-2 CMP DUP
T-210 SD 2-6 CMP
Location:
T-207
T-207
T-208
T-208
T-209
T-209
T-210
T-210
T-210
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
0-2
2-6
Sample Date:
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
8/24/2021
Lab Sample ID:
40232299001
40232299002
40232299005
40232299006
40232299007
40232299008
40232299009
40232299011
40232299010
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0645 U
< 0.0628 U
<0.0631 U
< 0.0625 U
< 0.0657 U
< 0.0664 U
< 0.0654 U
< 0.0638 U
< 0.0627 U
Aroclor 1221
mg/kg
< 0.0645 U
< 0.0628 U
<0.0631 U
< 0.0625 U
< 0.0657 U
< 0.0664 U
< 0.0654 U
< 0.0638 U
< 0.0627 U
Aroclor 1232
mg/kg
< 0.0645 U
< 0.0628 U
<0.0631 U
< 0.0625 U
< 0.0657 U
< 0.0664 U
< 0.0654 U
< 0.0638 U
< 0.0627 U
Aroclor 1242
mg/kg
0.127 J
0.259 J
0.659
0.365
0.344
0.543
0.334
0.302
0.471
Aroclor 1248
mg/kg
< 0.0645 U
< 0.0628 U
< 0.0631 U
< 0.0625 U
< 0.0657 U
< 0.0664 U
< 0.0654 U
< 0.0638 U
< 0.0627 U
Aroclor 1254
mg/kg
0.0339 J
0.0713
0.108
0.0885
0.0780
0.0775
0.0728
0.0736
0.106 J
Aroclor 1260
mg/kg
< 0.0645 U
< 0.0628 U
< 0.0631 U
< 0.0625 U
< 0.0657 U
< 0.0664 U
< 0.0654 U
< 0.0638 U
< 0.0627 U
Total Aroclor PCBs
mg/kg
0.161 J
0.330 J
0.767
0.453
0.422
0.620
0.407
0.376
0.577 J
General Chemistry
Total Organic Carbon
mg/kg
1,530
3,210
4,820
6,620 J
4,680 J
10,100
6,740
5,650
4,140 J
Percent Moisture
%
22.6
20.5
20.7
20.2
24.1
24.8
23.6
21.6
20.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-210 SD 2-6 CMP DUP
T-211 SD 0-2 CMP
T-211 SD 2-6 CMP
T-212 SD 0-2 CMP
T-212 SD 2-6 CMP
T-213 SD 0-2 CMP
T-213 SD 2-6 CMP
T-214 SD 0-2 CMP
T-214 SD 2-6 CMP
Location:
T-210
T-211
T-211
T-212
T-212
T-213
T-213
T-214
T-214
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/24/2021
8/24/2021
8/24/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
Lab Sample ID:
40232299012
40232299017
40232299018
40232392001
40232392002
40232392003
40232392004
40232392005
40232392006
PCB Aroclors
Aroclor 1016
mg/kg
<0.0653 U
< 0.0639 U
< 0.0658 U
< 0.0623 U
< 0.0639 U
< 0.0648 U
< 0.0644 U
< 0.0637 U
< 0.0625 U
Aroclor 1221
mg/kg
<0.0653 U
< 0.0639 U
< 0.0658 U
< 0.0623 U
< 0.0639 U
< 0.0648 U
< 0.0644 U
< 0.0637 U
< 0.0625 U
Aroclor 1232
mg/kg
<0.0653 U
< 0.0639 U
< 0.0658 U
< 0.0623 U
< 0.0639 U
< 0.0648 U
< 0.0644 U
< 0.0637 U
< 0.0625 U
Aroclor 1242
mg/kg
0.430
0.599
1.06
0.361
0.600
0.390
0.481
0.247
0.202 J
Aroclor 1248
mg/kg
<0.0653 U
< 0.0639 U
< 0.0658 U
< 0.0623 U
< 0.0639 U
< 0.0648 U
< 0.0644 U
< 0.0637 U
< 0.0625 U
Aroclor 1254
mg/kg
0.122
0.160
0.176 J
0.0636 J
0.102
0.0653
0.0945
0.0582 J
0.0481 J
Aroclor 1260
mg/kg
<0.0653 U
< 0.0639 U
< 0.0658 U
< 0.0623 U
< 0.0639 U
< 0.0648 U
< 0.0644 U
< 0.0637 U
< 0.0625 U
Total Aroclor PCBs
mg/kg
0.552
0.760
1.24 J
0.425
0.703
0.456
0.576
0.306 J
0.250 J
General Chemistry
Total Organic Carbon
mg/kg
7,660 J
8,190
1,240
3,000 J
3,040 J
2,290
4,130
5,150
8,750
Percent Moisture
%
23.7
21.9
24.0
19.6
21.8
23.0
22.3
21.5
20.1
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-215 SD 0-2 CMP
T-215 SD 2-6 CMP
T-216 SD 0-2 CMP
T-216 SD 2-6 CMP
T-217 SD 0-2 CMP
T-217 SD 2-6 CMP
T-218 SD 0-2 CMP
T-218 SD 2-6 CMP
T-219 SD 0-2 CMP
T-219 SD 2-6 CMP
Location:
T-215
T-215
T-216
T-216
T-217
T-217
T-218
T-218
T-219
T-219
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
Lab Sample ID:
40232392007
40232392008
40232392013
40232392014
40232392015
40232392016
40232392017
40232392018
40232392019
40232392020
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0649 U
< 0.0654 U
< 0.0630 U
< 0.0663 U
< 0.0616 U
< 0.0648 U
< 0.0622 U
< 0.0657 U
< 0.0646 U
< 0.0624 U
Aroclor 1221
mg/kg
< 0.0649 U
< 0.0654 U
< 0.0630 U
< 0.0663 U
< 0.0616 U
< 0.0648 U
< 0.0622 U
< 0.0657 U
< 0.0646 U
< 0.0624 U
Aroclor 1232
mg/kg
< 0.0649 U
< 0.0654 U
< 0.0630 U
< 0.0663 U
< 0.0616 U
< 0.0648 U
< 0.0622 U
< 0.0657 U
< 0.0646 U
< 0.0624 U
Aroclor 1242
mg/kg
0.207
0.141 J
0.237
0.328 J
0.282 J
0.352
0.390
0.365 J
0.356
0.218 JN
Aroclor 1248
mg/kg
< 0.0649 U
< 0.0654 U
< 0.0630 U
< 0.0663 U
< 0.0616 U
< 0.0648 U
< 0.0622 U
< 0.0657 U
< 0.0646 U
< 0.0624 U
Aroclor 1254
mg/kg
0.0565 J
0.0364 J
0.0429 J
0.107 J
0.0649
0.0997
0.0489 J
0.0862
0.0712 J
0.0506 J
Aroclor 1260
mg/kg
< 0.0649 U
< 0.0654 U
< 0.0630 U
< 0.0663 U
< 0.0616 U
< 0.0648 U
< 0.0622 U
< 0.0657 U
< 0.0646 U
< 0.0624 U
Total Aroclor PCBs
mg/kg
0.263 J
0.177 J
0.280 J
0.435 J
0.347 J
0.452
0.439 J
0.451 J
0.427 J
0.269 J
General Chemistry
Total Organic Carbon
mg/kg
2,120
1,900
2,740
7,310
8,390
10,800
3,000
4,780
5,030
7,040
Percent Moisture
%
23.2
23.8
20.8
24.4
19.0
23.0
19.3
24.0
22.7
19.7
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-220 SD 0-2 CMP
T-220 SD 2-6 CMP
T-221 SD 0-2 CMP
T-221 SD 0-2 CMP TRP 1
T-221 SD 0-2 CMP TRP 2
T-221 SD 2-6 CMP
T-221 SD 2-6 CMP TRP 1
T-221 SD 2-6 CMP TRP 2
Location:
T-220
T-220
T-221
T-221
T-221
T-221
T-221
T-221
Sample Depth Range (inches)
0-2
2-6
0-2
0-2
0-2
2-6
2-6
2-6
Sample Date:
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
Lab Sample ID:
40232401001
40232401002
40232401007
40232401009
40232401011
40232401008
40232401010
40232401012
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0615 U
< 0.0707 U
< 0.0605 U
<0.123 U
< 0.0633 U
< 0.188 U
< 0.130 U
< 0.0634 U
Aroclor 1221
mg/kg
< 0.0615 U
< 0.0707 U
< 0.0605 U
<0.123 U
< 0.0633 U
< 0.188 U
< 0.130 U
< 0.0634 U
Aroclor 1232
mg/kg
< 0.0615 U
< 0.0707 U
< 0.0605 U
<0.123 U
< 0.0633 U
< 0.188 U
< 0.130 U
< 0.0634 U
Aroclor 1242
mg/kg
0.190
0.258
0.505 JN
1.43
0.146
1.90 J
1.49
0.221
Aroclor 1248
mg/kg
< 0.0615 U
< 0.0707 U
< 0.0605 U
<0.123 U
< 0.0633 U
< 0.188 U
< 0.130 U
< 0.0634 U
Aroclor 1254
mg/kg
0.0717
0.0466 J
0.107 JN
0.205
< 0.0633 U
0.304 J
0.245
0.0489 J
Aroclor 1260
mg/kg
< 0.0615 U
< 0.0707 U
< 0.0605 U
<0.123 U
< 0.0633 U
< 0.188 U
< 0.130 U
< 0.0634 U
Total Aroclor PCBs
mg/kg
0.262
0.304 J
0.612 J
1.64
0.146
2.20 J
1.74
0.270 J
General Chemistry
Total Organic Carbon
mg/kg
5,970 J
7,640 J
1,240
3,550
4,680
4,340
4,730
6,680
Percent Moisture
%
18.6
29.3
17.3
18.8
21.2
20.1
23.3
21.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-222 SD 0-2 CMP
T-222 SD 2-6 CMP
T-223 SD 0-2 CMP
T-223 SD 2-6 CMP
T-224 SD 0-2 CMP
T-224 SD 2-6 CMP
T-225 SD 0-2 CMP
T-225 SD 2-6 CMP
T-226 SD 0-2 CMP
T-226 SD 2-6 CMP
Location:
T-222
T-222
T-223
T-223
T-224
T-224
T-225
T-225
T-226
T-226
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
8/25/2021
Lab Sample ID:
40232401013
40232401014
40232401015
40232401016
40232401017
40232401018
40232401019
40232401020
40232398005
40232398006
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0608 U
< 0.0594 U
< 0.0622 U
< 0.0638 U
< 0.0579 U
< 0.0646 U
< 0.0648 U
< 0.0634 U
< 0.0624 U
< 0.0605 U
Aroclor 1221
mg/kg
< 0.0608 U
< 0.0594 U
< 0.0622 U
< 0.0638 U
< 0.0579 U
< 0.0646 U
< 0.0648 U
< 0.0634 U
< 0.0624 U
< 0.0605 U
Aroclor 1232
mg/kg
< 0.0608 U
< 0.0594 U
< 0.0622 U
< 0.0638 U
< 0.0579 U
< 0.0646 U
< 0.0648 U
< 0.0634 U
< 0.0624 U
< 0.0605 U
Aroclor 1242
mg/kg
0.232
0.288
0.274
0.619
0.354
0.673
0.440
0.552
0.253 J
0.288
Aroclor 1248
mg/kg
< 0.0608 U
< 0.0594 U
< 0.0622 U
< 0.0638 U
< 0.0579 U
< 0.0646 U
< 0.0648 U
< 0.0634 U
< 0.0624 U
< 0.0605 U
Aroclor 1254
mg/kg
0.0402 J
0.0449 J
< 0.0622 U
0.0777 J
0.0350 J
0.0890
0.0879
0.115 J
0.0572 J
0.0727
Aroclor 1260
mg/kg
< 0.0608 U
< 0.0594 U
< 0.0622 U
< 0.0638 U
< 0.0579 U
< 0.0646 U
< 0.0648 U
< 0.0634 U
< 0.0624 U
< 0.0605 U
Total Aroclor PCBs
mg/kg
0.272 J
0.333 J
0.274
0.696 J
0.389
0.762
0.528
0.667 J
0.310 J
0.360
General Chemistry
Total Organic Carbon
mg/kg
4,760
3,120
2,180
3,980
2,660
4,850
5,600
3,290
5,420
3,570
Percent Moisture
%
17.9
15.8
19.6
21.5
13.5
22.9
23.0
21.4
19.9
17.3
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-227 SD 0-2 CMP
T-227 SD 2-6 CMP
T-228 SD 0-2 CMP
T-228 SD 2-6 CMP
T-229 SD 0-2 CMP
T-229 SD 2-6 CMP
T-230 SD 0-2 CMP
T-230 SD 0-2 CMP DUP
T-230 SD 2-6 CMP
Location:
T-227
T-227
T-228
T-228
T-229
T-229
T-230
T-230
T-230
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
0-2
2-6
Sample Date:
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
Lab Sample ID:
40232398007
40232398008
40232398009
40232398010
40232398011
40232398012
40232398013
40232398015
40232398014
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0618 U
< 0.0655 U
< 0.0632 U
< 0.0665 U
< 0.0588 U
< 0.125 U
< 0.0589 U
< 0.0608 U
< 0.0620 U
Aroclor 1221
mg/kg
< 0.0618 U
< 0.0655 U
< 0.0632 U
< 0.0665 U
< 0.0588 U
< 0.125 U
< 0.0589 U
< 0.0608 U
< 0.0620 U
Aroclor 1232
mg/kg
< 0.0618 U
< 0.0655 U
< 0.0632 U
< 0.0665 U
< 0.0588 U
< 0.125 U
< 0.0589 U
< 0.0608 U
< 0.0620 U
Aroclor 1242
mg/kg
0.366
0.172
0.349
0.700
0.579
1.70
0.326
0.418
1.00 J
Aroclor 1248
mg/kg
< 0.0618 U
< 0.0655 U
< 0.0632 U
< 0.0665 U
< 0.0588 U
< 0.125 U
< 0.0589 U
< 0.0608 U
< 0.0620 U
Aroclor 1254
mg/kg
0.0555 J
0.0354 J
0.0729 J
0.0998
0.0640
0.233
0.0332 J
0.0331 J
0.106 J
Aroclor 1260
mg/kg
< 0.0618 U
< 0.0655 U
< 0.0632 U
< 0.0665 U
< 0.0588 U
< 0.125 U
< 0.0589 U
< 0.0608 U
< 0.0620 U
Total Aroclor PCBs
mg/kg
0.421 J
0.207 J
0.421 J
0.800
0.643
1.94
0.359
0.451
1.11 J
General Chemistry
Total Organic Carbon
mg/kg
4,690
4,820
5,470
21,700
4,090
3,740 J
1,260 J
2,590 J
2,080
Percent Moisture
%
19.0
23.7
21.1
24.8
15.2
20.5
15.1
17.7
19.5
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
59/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-230 SD 2-6 CMP DUP
T-231 SD 0-2 CMP
T-231 SD 2-6 CMP
T-232 SD 0-2 CMP
T-232 SD 2-6 CMP
T-233 SD 0-2 CMP
T-233 SD 2-6 CMP
T-234 SD 0-2 CMP
T-234 SD 2-6 CMP
Location:
T-230
T-231
T-231
T-232
T-232
T-233
T-233
T-234
T-234
Sample Depth Range (inches)
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
Lab Sample ID:
40232398016
40232457001
40232457002
40232457003
40232457004
40232457005
40232457006
40232457007
40232457008
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0610 U
< 0.0637 U
< 0.0619 U
< 0.0618 U
< 0.0635 U
< 0.0619 U
< 1.88 UJ
< 0.0627 U
< 0.0615 U
Aroclor 1221
mg/kg
< 0.0610 U
< 0.0637 U
< 0.0619 U
< 0.0618 U
< 0.0635 U
< 0.0619 U
< 1.88 UJ
< 0.0627 U
< 0.0615 U
Aroclor 1232
mg/kg
< 0.0610 U
< 0.0637 U
< 0.0619 U
< 0.0618 U
< 0.0635 U
< 0.0619 U
< 1.88 UJ
< 0.0627 U
< 0.0615 U
Aroclor 1242
mg/kg
1.07 J
0.325
0.371
0.310
0.374
0.469
19.8 J
0.172
0.245
Aroclor 1248
mg/kg
< 0.0610 U
< 0.0637 U
< 0.0619 U
< 0.0618 U
< 0.0635 U
< 0.0619 U
< 1.88 UJ
< 0.0627 U
< 0.0615 U
Aroclor 1254
mg/kg
0.104
0.0426 J
0.0953
< 0.0618 U
0.0501 J
< 0.0619 U
2.23 J
0.0195 J
0.0525 J
Aroclor 1260
mg/kg
< 0.0610 U
< 0.0637 U
< 0.0619 U
< 0.0618 U
< 0.0635 U
< 0.0619 U
< 1.88 UJ
< 0.0627 U
< 0.0615 U
Total Aroclor PCBs
mg/kg
1.18 J
0.368 J
0.467
0.310
0.424 J
0.469
22.0 J
0.192 J
0.298 J
General Chemistry
Total Organic Carbon
mg/kg
2,540
4,720
4,540
4,320
1,180
13,600
4,900
2,750
798
Percent Moisture
%
17.9
21.8
19.2
18.9
21.5
19.2
20.1
20.0
18.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
60/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-235 SD 0-2 CMP
T-235 SD 2-6 CMP
T-236 SD 0-2 CMP
T-236 SD 2-6 CMP
T-237 SD 0-2 CMP
T-237 SD 2-6 CMP
T-238 SD 0-2 CMP
T-238 SD 2-6 CMP
T-239 SD 0-2 CMP
T-239 SD 2-6 CMP
Location:
T-235
T-235
T-236
T-236
T-237
T-237
T-238
T-238
T-239
T-239
Sample Depth Range (inches)
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
0-2
2-6
Sample Date:
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
8/26/2021
Lab Sample ID:
40232457009
40232457010
40232457015
40232457016
40232457017
40232457018
40232457019
40232457020
40232457021
40232457022
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
< 0.0638 U
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Aroclor 1221
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
< 0.0638 U
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Aroclor 1232
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
< 0.0638 U
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Aroclor 1242
mg/kg
0.129
0.0498 J
0.0643 JN
0.0692 JN
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Aroclor 1248
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
< 0.0638 U
< 0.0619 U
0.560
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Aroclor 1254
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
0.0230 J
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
0.0302 J
< 0.0635 U
Aroclor 1260
mg/kg
< 0.0618 U
< 0.0637 U
< 0.0623 U
< 0.0638 U
< 0.0619 U
< 0.0616 U
< 0.0614 U
< 0.0617 U
< 0.0607 U
< 0.0635 U
Total Aroclor PCBs
mg/kg
0.129
0.0498 J
0.0643 J
0.0922 J
< 0.0619 U
0.560
< 0.0614 U
< 0.0617 U
0.0302 J
< 0.0635 U
General Chemistry
Total Organic Carbon
mg/kg
5,120
1,650
5,270
4,040
2,360
2,980
4,850
5,480
7,700
18,100
Percent Moisture
%
19.1
21.6
20.0
21.7
19.2
18.8
18.5
18.9
17.9
21.4
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
61/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Sample ID:
T-240 SD 0-2 CMP
T-240 SD 2-6 CMP
Location:
T-240
T-240
Sample Depth Range (inches)
0-2
2-6
Sample Date:
8/26/2021
8/26/2021
Lab Sample ID:
40232459001
40232459002
PCB Aroclors
Aroclor 1016
mg/kg
< 0.0617 U
< 0.0627 U
Aroclor 1221
mg/kg
< 0.0617 U
< 0.0627 U
Aroclor 1232
mg/kg
< 0.0617 U
< 0.0627 U
Aroclor 1242
mg/kg
< 0.0617 U
< 0.0627 U
Aroclor 1248
mg/kg
< 0.0617 U
< 0.0627 U
Aroclor 1254
mg/kg
0.0399 J
< 0.0627 U
Aroclor 1260
mg/kg
< 0.0617 U
< 0.0627 U
Total Aroclor PCBs
mg/kg
0.0399 J
< 0.0627 U
General Chemistry
Total Organic Carbon
mg/kg
4,620 J
6,530 J
Percent Moisture
%
19.1
20.2
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
62/63
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Table 6-1
Analytical Results for Sediment Samples
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Notes:
1. Total Aroclor PCB is calculated as the sum of all detected Aroclors. If analytical results for all seven PCB Aroclors were non-detect, the total Aroclor PCBs for that sample was reported as the detection limit of the individual PCB Aroclors and was flagged to indicate it as
a non-detect total Aroclor PCB result
2. Bold indicates a detected concentration
Qualifiers:
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
N - The analysis indicates the presence of a compound for which there is presumptive evidence to make a tentative identification.
U - The compound was analyzed for but not detected. The associated value is the compound limit of detection.
Acronyms and Abbreviations:
% = percent
mg/kg = milligram per kilogram
PCB = polychlorinated biphenyl
CTi and Associates, inc. Arcadis U.S., inc.
2020-2021 Baseiine Sampiing Data Report
Shiawassee River Superfund Site, Howeii, Michigan
63/63
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Table 6-2
Statistical Summary for Sediment Sample Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Dataset
Depth
Analyte
Frequency of
Detection
Units
Surface Area
Surface-area
Weighted
Average
Concentration
Minimum
Maximum
Mean
Standard
Deviation
10%-tile
25%-tile
Upstream of the Site
0-2
Total PCBs
1/4 (25%)
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
27,400
NA
<0.0583
0.206
NA
NA
NA
NA
Upstream of the Site
2-6
Total PCBs
0/4 (0%)
27,400
NA
<0.0589
<0.0631
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
Total PCBs
35/37 (94.6%)
156,000
0.367
<0.0614
1.31
0.378
0.251
0.0633
0.262
Near Site between Highway M-59 and Bowen Road
2-6
Total PCBs
34/37 (91.9%)
156,000
1.40
<0.0617
22.0
1.17
3.52
0.0807
0.269
Bowen Road to West Marr Road
0-2
Total PCBs
72/72 (100%)
340,000
0.372
0.0830
3.13
0.372
0.374
0.159
0.210
Bowen Road to West Marr Road
2-6
Total PCBs
72/72 (100%)
340,000
0.422
0.0771
4.08
0.437
0.482
0.167
0.235
West Marr Road to Chase Lake Road
0-2
Total PCBs
98/98 (100%)
579,000
0.551
0.172
3.07
0.540
0.384
0.273
0.335
West Marr Road to Chase Lake Road
2-6
Total PCBs
98/98 (100%)
579,000
0.670
0.110
5.36
0.664
0.650
0.274
0.378
Chase Lake Road to Steinacker Road
0-2
Total PCBs
32/32 (100%)
191,000
0.537
0.256
1.27
0.536
0.244
0.309
0.389
Chase Lake Road to Steinacker Road
2-6
Total PCBs
32/32 (100%)
191,000
0.729
0.247
1.56
0.728
0.352
0.321
0.534
Site-wide (excluding background)
0-2
Total PCBs
237/239 (99.2%)
mg/kg
1,260,000
0.478
<0.0614
3.13
0.464
0.355
0.195
0.280
Site-wide (excluding background)
2-6
Total PCBs
236/239 (98.7%)
mg/kg
1,260,000
0.702
<0.0617
22.0
0.682
1.49
0.204
0.308
Upstream of the Site
0-2
Total Organic Carbon
4/4 (100%)
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
27,400
NA
2,960
11,400
NA
NA
NA
NA
Upstream of the Site
2-6
Total Organic Carbon
4/4 (100%)
27,400
NA
3,470
10,700
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
Total Organic Carbon
37/37 (100%)
156,000
4,690
1,240
13,600
4,640
2,430
2,160
2,750
Near Site between Highway M-59 and Bowen Road
2-6
Total Organic Carbon
37/37 (100%)
156,000
5,410
798
21,700
5,380
4,280
1,800
3,040
Bowen Road to West Marr Road
0-2
Total Organic Carbon
72/72 (100%)
340,000
5,970
1,450
18,000
6,030
3,230
2,710
3,690
Bowen Road to West Marr Road
2-6
Total Organic Carbon
72/72 (100%)
340,000
8,440
1,360
37,400
8,330
5,370
3,800
4,950
West Marr Road to Chase Lake Road
0-2
Total Organic Carbon
98/98 (100%)
mg/kg
579,000
25,100
4,720
73,700
23,900
14,400
8,190
12,500
West Marr Road to Chase Lake Road
2-6
Total Organic Carbon
98/98 (100%)
mg/kg
579,000
23,300
2,640
65,100
22,400
13,100
8,130
13,100
Chase Lake Road to Steinacker Road
0-2
Total Organic Carbon
32/32 (100%)
mg/kg
191,000
28,500
13,000
64,700
29,100
11,800
17,600
21,400
Chase Lake Road to Steinacker Road
2-6
Total Organic Carbon
32/32 (100%)
mg/kg
191,000
31,800
14,500
55,200
32,300
9,600
19,700
25,800
Site-wide (excluding background)
0-2
Total Organic Carbon
239/239 (100%)
mg/kg
mg/kg
1,260,000
17,900
1,240
73,700
16,200
14,300
2,990
5,120
Site-wide (excluding background)
2-6
Total Organic Carbon
239/239 (100%)
1,260,000
18,400
798
65,100
16,800
13,400
3,840
6,400
Upstream of the Site
0-2
TOC-adjusted Total PCBs
1/4 (25%)
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
27,400
NA
<5.11
69.6
NA
NA
NA
NA
Upstream of the Site
2-6
TOC-adjusted Total PCBs
0/4 (0%)
27,400
NA
<5.50
<18.2
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
TOC-adjusted Total PCBs
35/37 (94.6%)
156,000
101
<12.7
494
104
94.9
20.2
57.1
Near Site between Highway M-59 and Bowen Road
2-6
TOC-adjusted Total PCBs
34/37 (91.9%)
156,000
334
<3.51
4,490
289
728
26.3
41.9
Bowen Road to West Marr Road
0-2
TOC-adjusted Total PCBs
72/72 (100%)
340,000
82.9
12.3
721
83.0
102
19.4
37.2
Bowen Road to West Marr Road
2-6
TOC-adjusted Total PCBs
72/72 (100%)
340,000
72.2
2.06
925
74.8
113
14.5
31.2
West Marr Road to Chase Lake Road
0-2
TOC-adjusted Total PCBs
98/98 (100%)
mg/kg-oc
579,000
25.8
7.09
116
26.8
15.4
11.8
15.9
West Marr Road to Chase Lake Road
2-6
TOC-adjusted Total PCBs
98/98 (100%)
mg/kg-oc
579,000
32.5
10.3
123
33.5
21.9
13.3
19.0
Chase Lake Road to Steinacker Road
0-2
TOC-adjusted Total PCBs
32/32 (100%)
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
191,000
20.7
7.98
73.0
20.2
11.7
10.8
14.4
Chase Lake Road to Steinacker Road
2-6
TOC-adjusted Total PCBs
32/32 (100%)
191,000
24.8
6.38
73.2
24.4
14.2
12.0
15.7
Site-wide (excluding background)
0-2
TOC-adjusted Total PCBs
237/239 (99.2%)
1,260,000
49.7
<12.7
721
54.9
75.5
13.3
18.4
Site-wide (excluding background)
2-6
TOC-adjusted Total PCBs
236/239 (98.7%)
1,260,000
79.1
<3.51
4,490
84.4
307
13.4
20.7
Acronyms and Abbreviations:
% = percent NA = not applicable
mg/kg = milligram per kilogram PCB = polychlorinated biphenyl
mg/kg-oc = milligram per kilogram organic carbon TOC = Total Organic Carbon
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 6-2
Statistical Summary for Sediment Sample Results
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Dataset
Depth
Analyte
Frequency of
Detection
Units
50%-tile
75%-tile
80%-tile
85%-tile
90%-tile
95%-tile
99%-tile
Upstream of the Site
0-2
Total PCBs
1/4 (25%)
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
NA
NA
NA
NA
NA
NA
NA
Upstream of the Site
2-6
Total PCBs
0/4 (0%)
NA
NA
NA
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
Total PCBs
35/37 (94.6%)
0.359
0.439
0.466
0.578
0.690
0.776
1.13
Near Site between Highway M-59 and Bowen Road
2-6
Total PCBs
34/37 (91.9%)
0.452
0.696
0.750
0.986
1.52
2.27
15.0
Bowen Road to West Marr Road
0-2
Total PCBs
72/72 (100%)
0.290
0.428
0.471
0.509
0.578
0.772
1.56
Bowen Road to West Marr Road
2-6
Total PCBs
72/72 (100%)
0.367
0.499
0.533
0.563
0.611
0.811
2.08
West Marr Road to Chase Lake Road
0-2
Total PCBs
98/98 (100%)
0.422
0.612
0.688
0.781
0.929
1.18
1.89
West Marr Road to Chase Lake Road
2-6
Total PCBs
98/98 (100%)
0.502
0.755
0.878
0.913
1.02
1.25
3.42
Chase Lake Road to Steinacker Road
0-2
Total PCBs
32/32 (100%)
0.434
0.626
0.712
0.742
0.855
1.01
1.24
Chase Lake Road to Steinacker Road
2-6
Total PCBs
32/32 (100%)
0.588
0.890
0.993
1.13
1.29
1.42
1.56
Site-wide (excluding background)
0-2
Total PCBs
237/239 (99.2%)
mg/kg
0.388
0.543
0.604
0.687
0.779
1.05
1.64
Site-wide (excluding background)
2-6
Total PCBs
236/239 (98.7%)
mg/kg
0.479
0.674
0.759
0.883
1.02
1.31
3.81
Upstream of the Site
0-2
Total Organic Carbon
4/4 (100%)
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
mg/kg
NA
NA
NA
NA
NA
NA
NA
Upstream of the Site
2-6
Total Organic Carbon
4/4 (100%)
NA
NA
NA
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
Total Organic Carbon
37/37 (100%)
4,690
5,420
5,570
6,430
7,860
8,230
11,700
Near Site between Highway M-59 and Bowen Road
2-6
Total Organic Carbon
37/37 (100%)
4,140
6,620
7,260
7,560
9,290
12,300
20,400
Bowen Road to West Marr Road
0-2
Total Organic Carbon
72/72 (100%)
5,180
7,460
8,800
9,510
10,600
11,400
15,400
Bowen Road to West Marr Road
2-6
Total Organic Carbon
72/72 (100%)
6,820
10,100
11,300
12,500
14,100
16,200
27,200
West Marr Road to Chase Lake Road
0-2
Total Organic Carbon
98/98 (100%)
mg/kg
19,700
31,800
36,000
38,000
43,500
47,800
71,600
West Marr Road to Chase Lake Road
2-6
Total Organic Carbon
98/98 (100%)
mg/kg
21,500
29,600
29,900
31,000
35,200
48,700
64,100
Chase Lake Road to Steinacker Road
0-2
Total Organic Carbon
32/32 (100%)
mg/kg
25,200
36,400
38,900
42,600
46,900
47,900
59,600
Chase Lake Road to Steinacker Road
2-6
Total Organic Carbon
32/32 (100%)
mg/kg
32,400
38,000
40,800
43,200
44,400
46,200
52,800
Site-wide (excluding background)
0-2
Total Organic Carbon
239/239 (100%)
mg/kg
mg/kg
10,900
24,000
28,100
31,400
37,600
47,000
60,100
Site-wide (excluding background)
2-6
Total Organic Carbon
239/239 (100%)
12,700
25,800
29,100
31,000
33,900
42,800
63,300
Upstream of the Site
0-2
TOC-adjusted Total PCBs
1/4 (25%)
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
NA
NA
NA
NA
NA
NA
NA
Upstream of the Site
2-6
TOC-adjusted Total PCBs
0/4 (0%)
NA
NA
NA
NA
NA
NA
NA
Near Site between Highway M-59 and Bowen Road
0-2
TOC-adjusted Total PCBs
35/37 (94.6%)
84.9
126
145
153
175
294
434
Near Site between Highway M-59 and Bowen Road
2-6
TOC-adjusted Total PCBs
34/37 (91.9%)
103
203
320
368
512
627
3,230
Bowen Road to West Marr Road
0-2
TOC-adjusted Total PCBs
72/72 (100%)
54.7
83.6
87.8
119
178
216
489
Bowen Road to West Marr Road
2-6
TOC-adjusted Total PCBs
72/72 (100%)
50.5
72.1
91.7
128
151
170
430
West Marr Road to Chase Lake Road
0-2
TOC-adjusted Total PCBs
98/98 (100%)
mg/kg-oc
23.8
33.7
35.2
38.6
40.7
46.2
72.5
West Marr Road to Chase Lake Road
2-6
TOC-adjusted Total PCBs
98/98 (100%)
mg/kg-oc
28.0
41.6
47.8
50.7
56.6
66.2
117
Chase Lake Road to Steinacker Road
0-2
TOC-adjusted Total PCBs
32/32 (100%)
mg/kg-oc
mg/kg-oc
mg/kg-oc
mg/kg-oc
17.5
22.4
24.8
27.6
31.5
32.6
60.6
Chase Lake Road to Steinacker Road
2-6
TOC-adjusted Total PCBs
32/32 (100%)
18.7
30.1
36.1
38.0
41.3
47.9
65.7
Site-wide (excluding background)
0-2
TOC-adjusted Total PCBs
237/239 (99.2%)
32.3
61.7
72.4
85.0
112
162
370
Site-wide (excluding background)
2-6
TOC-adjusted Total PCBs
236/239 (98.7%)
37.1
59.6
68.6
103
140
189
776
Acronyms and Abbreviations:
% = percent NA = not applicable
mg/kg = milligram per kilogram PCB = polychlorinated biphenyl
mg/kg-oc = milligram per kilogram organic carbon TOC = Total Organic Carbon
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
Table 6-3
Triplicate Sampling Evaluation
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
Depth Range
(inches)
Location ID
Parent Sample
Result
Triplicate Sample 1
Triplicate Sample 2
Coefficient of
Variation
Result
Relative Percent
Difference
Result
Relative Percent
Difference
Total Organic Carbon (mg/kg)
0-2
BG-1
11,400
7,360
43.1
7,160
45.7
27.7
T-001
42,500
24,100
55.3
15,000
95.7
51.5
T-021
25,400
19,200
27.8
10,600
82.2
40.4
T-041
36,000
31,900
12.1
34,900
3.10
6.19
T-061
21,600 J
19,400 J
10.7
16,700 J
25.6
12.8
T-081
31,400
20,700
41.1
23,100
30.5
22.4
T-101
17,900
23,900
28.7
20,200
12.1
14.6
T-121
9,040
10,500 J
14.9
7,490
18.8
16.7
T-141
10,100
12,700
22.8
5,850
53.3
36.2
T-161
6,170
7,800
23.3
3,230
62.6
40.4
T-181
3,180
8,110
87.3
9,150
96.8
46.8
T-201
4,340 J
9,070
70.5
9,330
73.0
37.1
T-221
1,240
3,550
96.5
4,680
116
55.5
2-6
BG-1
10,700
2,550
123
5,260
68.2
67.3
T-001
37,500
28,500
27.3
28,100
28.7
16.9
T-021
31,700
22,600
33.5
24,900 J
24.0
17.9
T-041
29,600
27,100
8.82
37,500
23.5
17.3
T-081
31,600
29,600
6.54
34,900 J
9.92
8.36
T-101
14,900
12,400
18.3
13,600
9.12
9.17
T-121
4,800
10,600
75.3
6,120
24.2
42.4
T-141
16,400
5,650
97.5
7,020
80.1
60.4
T-161
4,690
4,970
5.80
2,000
80.4
42.2
T-181
7,960
6,750
16.5
7,250
9.34
8.31
T-201
7,040
6,750
4.21
5,850
18.5
9.48
T-221
4,340
4,730
8.60
6,680
42.5
23.9
Total PCBs (mg/kg)
0-2
BG-1
0.0583 U
0.0556 U
4.74
0.0571 U
2.08
2.37
T-001
0.438 J
0.373 J
16.0
0.303
36.4
18.2
T-021
0.719 J
0.526
31.0
0.443
47.5
25.2
T-041
0.515
0.534
3.62
0.556
7.66
3.84
T-061
0.693 J
0.958 J
32.1
0.560 J
21.2
27.5
T-081
0.707
0.692 J
2.14
0.613 J
14.2
7.53
T-101
0.326
0.552
51.5
0.440
29.8
25.7
|T_-121
0.276 J
0.270 J
2.20
0.267 J
3.31
1.69
T-141
0.473
0.418
12.3
0.336 J
33.9
16.9
T-161
0.0901 J
0.233 J
88.5
0.213 J
81.1
43.3
T-181
0.375
0.273 J
31.5
0.384
2.37
17.9
T-201
3.13
2.16 J
36.7
1.39 J
77.0
39.2
T-221
0.612 J
1.64
91.3
0.146
123
95.6
2-6
BG-1
0.0589 U
0.0619 U
4.97
0.0592 U
0.508
2.75
T-001
0.485
0.530 J
8.87
0.288 J
51.0
29.6
T-021
1.55
1.46 J
5.98
0.907 J
52.3
26.7
T-041
0.43
0.872
67.9
0.394
8.74
47.1
T-081
1.02
0.702 J
36.9
0.596
52.5
28.6
T-101
0.500
0.415
18.6
0.527
5.26
12.2
T-121
0.310 J
0.330 J
6.25
0.355 J
13.5
6.80
T-141
0.455 J
0.349 J
26.4
0.469
3.03
15.5
T-161
0.197 J
0.239 J
19.3
0.226 J
13.7
9.74
T-181
0.558
0.389
35.7
0.441 J
23.4
18.7
T-201
1.26
0.902 J
33.1
1.08 J
15.4
16.6
T-221
2.20 J
1.74
23.4
0.270 J
156
71.8
Qualifiers:
J - The compound was positively identified; however, the associated numerical value is an estimated concentration only.
U - The compound was analyzed for but not detected. The associated value is the compound limit of detection.
Acronyms and Abbreviations:
mg/kg = milligrams per kilogram
PCB = polychlorinated biphenyl
CTI and Associates, Inc. Arcadis U.S., Inc.
2020-2021 Baseline Sampling Data Report
Shiawassee River Superfund Site, Howell, Michigan
-------
FIGURES
-------
Stein acker Rd
S
o
Links at
Hunters
Ridge
E Jones Rd
Chase Lake Rd
se Lake Rd
Geer Rd
957 ft
a
3
o
cy.
W Allen Rd
%
W Marr Rd
ndy Twp
a:
?
E
vc
-C
2
CD
z
Hawk
Meadows
Golf
Club
%¦
Howell Twp
Barron Rd
%
Warner Rd
Bo wen Rd
Livingston ii
County g
Airport
Millett Rd
1 2
GRAPHIC SCALE IN MILES
W'Highland'Rd'
•E
IE
CD
Henderson Rd
Former CFC Facility
Gk
4 tig
•5
5
1
LEGEND
RIVER CENTERLINE
Note:
River centerline provided on January 12, 2021 by CTI and Associates, Inc.
N
A
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SITE LOCATION
ots ^ARCADIS
1-1
-------
!57i5£00j
400+00
375+00
- 350+00
275+00
uymg atari]
[SteinackenjRd]
WMarr
Bowen Rd
Former CFC Facility
iddea
ISaKel^ohWet
Lake
GRAPHIC SCALE IN MILES
LEGEND
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SP3 AND SURFACE WATER
SAMPLE LOCATIONS
F GURE
2-1
® SAMPLE LOCATION ®S®$ RIVER STATIONING (FEET)
— RIVER CENTERLINE
OTHER STREAMS
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
3. Sampling activities included collecting two rounds of discrete surface water
samples during SP3™ sampler deployment and retrieval in September and November
2020, respectively. Time-averaged surface water samples were also collected at each
sample location using SP3™ samplers.
ots ^ARCADIS
-------
57l5W00
425+00
400+00
375+00
- 350500
325+00.
Wowoj
uymg atari]
B5mo
'idden
tuakel&oh'ovt:
WMarr Rd
Bowen Rd
ISM-29
GRAPHIC SCALE IN MILES
175*00
•y my -
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
FISH TISSUE SAMPLE LOCATIONS
_ g FIGURE
CI! ^ARCADIS 2-2
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
3. Fish collection was completed between 400 feet downstream and 400 feet
upstream of the target location (total length of target area was approximately 800 feet).
83°58'0"W
-------
A
—
~ na —
Etcrtagjl ¦. '
' £ . :>*
22/
222
*02
2" C
211
il 2
214
21 3
50H)0
r: 2
215
217,
'
219
221
22*!
2 2'
2
- 0
222
222
'226
227
X'r
: -
r-
-22 J
231
232
:: 2:
222
Former CF.C Facility,
3 2
-2:-
222
KJ12
* *
— j.
750
LEGEND
Sediment Transect Locations
River Centerline
Other Streams
©Sfi© River Stationing (feet)
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT TRANSECT LOCATIONS
HIGHWAY M-59 TO BOWEN ROAD
Ot! ^ARCADIS
2-3a
-------
g"S
Km be rwood ^Trf
125+00 +
75+00
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
©Sfi© River Stationing (feet)
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT TRANSECT LOCATIONS -
BOWEN ROAD TO WEST BARRON ROAD
Ot! ^ARCADIS
2-3b
-------
mxi
IKKKJCWa
175+00
'WED
150+00
iKES
mmm
¦rasa
Amberwooi
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
©Sfi© River Stationing (feet)
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT TRANSECT LOCATIONS -
WEST BARRON ROAD TO WEST MARR ROAD
Ot! ^ARCADIS
2-3c
-------
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
©Sfi© River Stationing (feet)
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT TRANSECT LOCATIONS -
WEST MARR ROAD TO WEST ALLEN ROAD
Ot! ^ARCADIS
2-3d
-------
-Ma
© '¦
L W"
USD"
"soa
1,000
Feet
275+00
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
©Sfi© River Stationing (feet)
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
w*
35
£_
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT TRANSECT LOCATIONS -
WEST ALLEN ROAD TO CHASE LAKE ROAD
Ot! ^ARCADIS
2-3e
-------
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
-------
Highway M-59
(RS 0+00)
cn
Bowen Road
(RS 67+00)
West Marr Road
(RS 196+50)
Chase Lake Road
(RS 368+00)
Steinacker Road
(RS 425+00)
Total PCB Congeners (ng/L)
, o cn o en o en o cn o cn c
Ul ^
»
»
i
<
IX"
..fl
•
#
'¦(
%
<
I"
/
•
•
.1
•
»-
***•.
•s,
I*
/•
...
J
i
lr"""
r*#
>
«
'
500
00
4500 9500 14500 19500 24500 29500 34500 39500 44!
River Stationing from Upstream to Downstream (feet)
Bridges
Other Streams
Legend:
Calculated Freely Dissolved PCB Concentrations (Cfree)
Round 1 (September 2020) Discrete Surface Water Dissolved PCB Concentrations -
Round 2 (November 2020) Discrete Surface Water Dissolved PCB Concentrations
Notes:
1. River stationing provided on January 12, 2021 by CTI and Associates, Inc.
2. Locations for other streams obtained from Michigan GIS Open Data portal.
3. Round 1 and 2 discrete surface water samples were field-filtered prior to laboratory analysis.
4. Parent and duplicate sample results were averaged for the Round 1 and 2 discrete surface water sampling.
5. Time-averaged surface water samples were collected using SP3™ samplers and calculated total PCB Cfree results
for each sampler are plotted.
6. PCB = polychlorinated biphenyl.
7. ng/L = nanograms per liter.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
TOTAL PCB CONGENERS IN
SURFACE WATER SAMPLES
Gta ^ARCADIS 4-1
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Surface Water (Round 2)
50
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Di
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T etra Qc
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ro
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OC0 COCO COCO m^CO^mmm mm COCO COOD COCO COCO CO—-—. CO Q3~^ CD---CO COCO CO
r %/ \t— t \t \r \t \r—f -\CM CM/ \i \r \/ \C*ir \*fin/ %/ \/ \f \/ %/ <\CO c f /
xcb"f coQ-
f OTO
m Q-tncL
^•mcD'^-oinT
OOOCMOt-^
CMfCOOt-CMCOCOI^CDCOOT-CMcOCOT-COI^OT-CM'^-inCDaJCOOCMCOM-inh-COCJlO'-
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Q-Q-CLClT QuT CLCLCLCLCLCLCLQ-CLCLT
mm
oo
CLCL
Tq.cl'Tq.clclq.q.Tq.clclTclclTclclclclclq.clclclq.VclclclclclclclTq.clTclq.q.clclclclclclclclTTclclq.clclclq.clcl
- — - - - - — — mm
oo
CLCL
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - UP-12
Cti ^ARCADIS
4-2a
-------
SP3T
50-
45-
ur
mr
Tetra
Penta
Hexa
Hepta
Octa
i)
13
£ 40-
35-
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10-
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i i i i i i i i i i i i i i i i i i i
o o co cm -i- in o *- CM CO in
0)000000000
CM CM CM CM CM CM CM CM CM
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Surface Water (Round 1)
50
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ro
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r %/ \t— t \t \r \t \r—f -\CM CM/1 \i \r \/ \C*ir \*fin/ %/ \/ \f \/ %/ <\CO c f /
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- — - - - - — — mm
OO
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Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - UP-11
Cti ^ARCADIS
4-2b
-------
SP3T
50
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Surface Water (Round 1)
50
45
40
35-
30
25
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I- 15-
10-
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Surface Water (Round 2)
50
Mono
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
OJ
c
0
J
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3
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45-
| 40
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35
30
0)
CT>
§ 25
o
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J2
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10
CO c f /
xcbtmo.
f OTO
m Q-tncL
tmcotoiOT
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cMtcoot-cMcocoi^cocooT-cMcocoT-coi^OT-cM'^-incDocoocMcoM-mh-coaiO'-
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Q.CL0lCLT OuT Q.CL 0.0.0.0-0.0-0-0/7
mm
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TQ.CL'TQ.CLQ.Q-Q.TQ.CLClTCLCLTCLCLCLCLCLQ-CLCLCLQ.VCLCLCLCLCLQ-ClTQ.CLTCLQ-Q-CLCLCLCLCLCLQ-CLTTCLCLQ-CLCLCLQ.CLCL
- — - - -- mm
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Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-10
Otl ^ARCADIS I
-------
SP3T
50
45'
|40
1 35 H
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CD
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30
25-
6
CO
§ 20
ra
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15H
10
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co o cm oo-^r r~-co o> r-cj Tj-m r^-05 o co cm t in co t-<
t-cmco-3"mtor--cooio . — —
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cl oo 0$2
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Surface Water (Round 1)
50
45
g 40
o
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Tetra
Penta
Hexa
Hepta
Octa
ro o
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2
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1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 I1
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35-
30
25
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15
10
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Surface Water (Round 2)
50
o
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Hexa
Hepta
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l- 15
10
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Q.Q.Q.Q.T OuT Q.Q.Q.Q.Q.Q.Q.Q.CLQ.T
mm
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TQ.CL'TQ.CLQ.Q.Q.TQ.CLQ.TCLQ.TQ.Q.Q.Q.Q.Q.Q.Q.Q.Q-VD.a.CLCLQ.Q.CLTQ.a.TQ.Q.Q.a.Q.Q.Q.CLQ.CLQ.TTa.Q.Q.Q.Q.Q.Q.CLa.
- — - - — — mm
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Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-09
Cti ^ARCADIS
4-2d
-------
SP3T
50
45'
|40
2
1 35 H
o
O
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C
CD
O)
30
25-
6
CO
§ 20
ro
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15 H
10
o
c.
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Tri
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Hexa
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ro
c
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onnci£icin(iciQ3Q3CNmmmcocDo^cQmmm -
cl oo 0$2
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o
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Surface Water (Round 1)
50
45
40
35-
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro
c
2
Z 1
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|
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30
25
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10
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OOQOOOOOOCQCDCsJcQfflCDCD0ODDOT-(i]£QcQCQ
3
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35
30
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o
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ro
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l- 15
10
CO c -\h—f / rt
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-cm into coo) o t-cm 1-in coo o)^-cm co ^i-in cor-coo)
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cam
oo
CLCL
Tq.clTq.clq.q.q.Tq.clq.Tclq.Tq.q.q.q.clq.q.q.clq.Vclclclclclq.clTq.clTclq.q.clq.clclq.q.q.q.TTq.clq.q.q.clq.q.cl
- — - - — — CD CD
oo
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Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-08
Cti ^ARCADIS
4-2e
-------
SP3T
50-
45-
ur
mr
Tetra
Penta
Hexa
Hepta
Octa
i)
13
£ 40-
35-
o
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c
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30-
25-
O
CD
£ 20-
ro
o
15-
10-
o> o r-in oo co t\i co in o> cm rr u> k co o>oj in ¦<-o> r> n n n TTn nnnnnnnn Trn n n o TT n n Tn n n n To n n Tn Tn nnnnnnnn Tn n n n n n n *Tn n Tn n n nnnnnnn
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£QCQmcDC0CQCDCDCQVV^VVTTCT^^^^^^^^^^^^c?c?^^tTtS^T^^^K>^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocmot-'-^t-t-cmicm cmcm cm cm coco coco coco tu^co cot ttttttt^incoinuiu^ui in cd coco cocDCDcoi^t^r^^^f^r^r^r^ajcocooo coco coco cooicocoojotcooc&ooooooooo
OOOOOOOOO^^^^^^^TO^°^^^^^^^^^^^^CQCQ[i^CQ^^^CCCD®OCQCDCQCDlicQ^CQ^QDlicQCQcncD03CDCDCQCDCQCQli^^o3iB^CQ^CQCQCQCQT7
«- CM CM CM CM CM CM CM CM CM
°Q.llll[l0000°0j:000U000000^200002$2002000U0j0U0^00!J!000000U000(^00000U0®00®0U000000000®®000000000
main U CO
coo"- a> g>
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Surface Water (Round 2)
50
Mono
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
OJ
c
j
s>
3
o
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r
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1 ¦ i
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45-
S 40
35
30
0)
CT>
§ 25
o
00
£ 20
ro
o
l- 15
10
OCQC0C0CQCDCQ^CD^CD£DC0CDfflCDCQCQC0CDCQCQCDCD^—-—-COCQ~^CD--.CQCQCQCQ
r %/ \t— t \t \r \t \r—f -\CMCM/ \r\r\r -*CM / \*fin/ \i\r\e\f\t ^CDf /
XC0"f COQ-
f OTO
co Q-tncL
f mcotomr
OOOCMOt-x
CMfCOOt-CMCOCDI^CDCOOT-CMCOCOT-COI^OT-CM'^-inCDOCOOCMCOM-inh-COCJlO'-
-CM int COt~- COO) O T-CM tin COO O)^- CM CO tin COf- COO)
Q.Q.Q.CLT OuT CLCLQ-CLCLCLCLQ-Q-CLT
mm
oo
CLCL
Tq.cl'Tq.clq.q.q.Tq.clclTclclTq.clclclclq.clclclq-Vclclclclclq.clTq.clTclq.q.clclclclclclclq.TTclclq.clclclq.clcl
- — - - — — mm
oo
CLCL
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-07
Cti ^ARCADIS
4-2f
-------
SP3T
50
45'
|40
2
1 35 H
o
O
Q)
C
CD
O)
30
25-
6
CO
§ 20
ro
o
I- 15 H
10
o
c
Di
Tri
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Hepta
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ro o
M D
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o ^ ^ (nj o) i o ^ in to ur> ^ oo o c\i ^ cvi rj-in r^. 05 o co (ni in to Is-oo o> '^!c)u?c?t?f?c?c?c?t:Tt;S!5TTf ininintnininr^tp!^cococototor-r^^cococpc»cpT-cMOTcp'-ooc»oc»ooooocM'--^r-^T--cMCMCMCMCNOtococofOtOTfincotOTf^^^^^^inincoinininu}tDtotoototDi^i---h-N-N-t*-h-r^r^o)co<
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o
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Surface Water (Round 1)
50
45
g 40
o
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Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro a
C J
2
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tLj
U
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35-
30
25
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I- 15-
10
(D
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£QC0mcDC0C0CDCDCQVV^VVTTCT^^^^^^^^^^^^c?c?^^tTtS^T^^^K>^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocnot-'-^t-t-cnjicnjcmcmcncmcococococo co^iococo'^-'^ ^^^incoinuiu^uiinco(0(CcocDCDtoi^t^r^r^i^f^i^i--r^a)»»»»»raa3cocKa>a>a>a)a>oa>ooooooooo
OOOOQOOOO^CQC^[DCQCDCOCOcOOT-(2cQ(Q[2(OcQ(icD£OCQCDCOCO[i^CQCO^in£acOOOcOticQCOlicQC^CQ^QDlicQCQCncO03CDCDCQCDCOCOli^^°3CO^CO^CQCQCQCOTt"
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Surface Water (Round 2)
50
o
c
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Di
Tri
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Penta
Hexa
Hepta
Octa
OJ
c
j
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3
o
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35
30
0)
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^ 25
o
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00
g 20
ro
o
l- 15 H
10
CO c -\h—f / "\(P ./-*
XCQ^CQQ.
f OTO
CO 0-030-
^•inco'^-omT
OOOCNOt-x
CMfCOOt-CMCOCOI^COCOOT-CMcOCOT-tOI^OT-CM'^tmCDOCOOCVJCO^inh-COOO'-
-cm intocoo) o t-cm i-in coo o)^-cmco ^i-in cor-coo)
0.Q-Q.Q.T OuT Q.Q.Q.Q.Q.Q-Q.Q-Q-CLT
com
oo
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To.cl'Tq.q.q.q.q.Tq.clq.Tq.clTq.q.q.q.clq.o.clq.q.Vo.q.o.q.clq.clTq.clTclq.q.clclclo.clq.q.q.TTq.clq.clclq.q.q.cl
- — - - — — COCO
oo
CLCL
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-06
Cti ^ARCADIS
4-2g
-------
SP3T
50
45'
|40
2
1 35 H
o
O
Q)
C
CD
O)
30
25-
6
CO
§ 20
ro
o
I- 15 H
10
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro o
M D
~
J
id
I L
41 P7T-,
¦ ImI
B. L ..JLJ J Mi
i oo-^r r~-co o> r-co Tj-m r^-05 o co cm t in oco in oo co cm co i-in o) r-cm rr m k co C3>cm co in to co C3> co cmm to h-co m o (D co'j-1^^^Ci^c?r?c?c?c?r?c?t:TrC:mmmirirnrnmrnrn
!ooooooooo
0-0.0-0-0-0-0.0.0.
o
o
~ GV
o o
a. cl
o
o
o
Surface Water (Round 1)
50
45
g 40
o
c
Di
Tn
Tetra
Penta
Hexa
Hepta
Octa
ro a
C J
z n
1
1
1
III
H
mm.
. PT 1
e™. - «J ¦ —
30
25
o 20
10-
T-cMco^in(Dr^coo)o^co^incDi^oo)cococMco^inoh-^cM^in(Dh-coo)^cMcoin^cDcoa)cocM^ino!^coinocDco^cocMCM^incDO)M^ino^c^in^cM^coOT-cMcocD(^ocoo^cMcocOT—^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocmot-'-^t-t-cmicm cm cm cm cm co to co co co to^iotoco's-^ -^^^incoininu^uiincococococDCDcoi^t^r^^^f^r^r^r^a)coco»cococococoo)coOTc^OTa>oc&ooooooooo
OOOOOOOOO^CQCM[OCQCDCDCOcDOT-(2cQ(Q[2(OcQ(icD£OCQCDCQCQ[i^CQ^^^CCCDOOcQticQCDlicQ^CQ^QDlicQCQCncD03CDCDCQCDCQCQli^^°3CQ^CQ^CQCQCQCQTt"
«— CM CM CM CM CM CM CM CM CM
2tlllll[l000050^:0000000000^200002"00^00000j000^00^0000000000^0000000®00®00000000000®®000000000
UJCUn i-J co
COO"- O) O)
CQ CO
Q-Q-Q-Q-Y Q.T CLCLCLCLQ-Q-Q-CLQ-aT
Surface Water (Round 2)
50
CM
IT
Tetra
Penta
Hexa
Hepta
Octa
45-
£ 40
35
30
0)
CT>
= 25
~
o
CD
g 20
ro
o
l- 15
10
''T T$S -
-cm inco coo) o t-cm i-in coo o)^-cm co ^i-in co coo)
Q.0-Q.Q.T OuT CLCLQ-CLCLCLCLQ-Q-CLT
com
oo
CLCL
To. CLTQ.CLQ.Q.Q.TQ.CLCLTCLCLTQ.CL CLCL CLQ. CLQ. CLO-VCLCL CLQ. CLQ. ClTQ-CLTCL CLQ. CLCL CLCLCL CLCL Q-TTCL CLQ. CLCL Q.Q. CLCL
- — - - — — coco
oo
CLCL
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-05
Cti ^ARCADIS
4-2h
-------
SP3T
50
45'
|40
2
1 35 H
o
O
Q)
C
CD
O)
30
25-
6
CO
§ 20
ro
o
I- 15 H
10
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ra o
M D
1
¦ J
J
m
I*
. rhJT
B. L JBJ —8 M>
r- cm rj- m r^- a> o co cm t in co r*- co o> co *- <
T-cMco^mcDr-coaio » — —
mmmmmmmmmTT^TYTCv^CW(?f>,0!fr't?c?c?c?t?c? -
cl oo 0$2
CLO. clY
(McoincDN-coo
OJOOOOOOOOO
CM CM CM CM CM CM CM CM CM
?mmirtrnrnrnmrnrn
!ooooooooo
Q.CLQ.Q.CLQ.Q.Q.Q.
o
o o
o
Surface Water (Round 1)
50
45
40
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro a
C J
z n
i
1
1
1
II
H
.a m
¦_ 8- _ ¦ —
30
25
O 20
10-
T-cMO^in(Dr^coo)o^co^incDi^oocococMco^ina>h-^cM^u)(Dh-coo)^cMcoui^cDcoa)cocM^ino!^coinocDco^^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocmo*-*-^ T-^^cMCMCMtMCMCDtDcoMMco^u^coco^^^^^^^^^incDinininuiincDtDcDcDCDCDCDi^r^r^^^r^i^i^t^ajcocooocococDoacoococnajcsjajoojooooooooo
'-CM CM CM CM CM CM CM CM CM
^Q-HD-llUOOOjO^OOOOOOOOOO^^OOOO^^OO^OOOOOjOOO^OO^OOOOOOOOOO^OOOOOOO^OO^OOOOOOOOOOO^^OOOOOOOOO
main l-J a>
C0~^ OQ <*>
D-CLCLQ-T Q.T Q.Q.CLQ.Q.Q.Q.Q.Q.aT
Surface Water (Round 2)
50
45-
| 40
(0
CM
Trr
Tetra
Penta
Hexa
Hepta
Octa
35
30
0)
o>
§ 25
o
co
g 20
J2
o
H 15
10
OcQC0C0CQCDCQ^CD^CD£DC0CDfflCDCQCQC0CDCQCQCDCD^—-—.CQfn^rn-^rnrnrnrn
/ %/ \t— t \t \r \t \r—f -\CMCM/ \r\r\r -*CM / \*fin/ \i\r\e\f\t \iOr -ih-f / "\(P ' /~v "
XC0"f COQ-
f OTO
m Q-tno.
Q.Q.Q.Q.T OuT Q.Q.Q.Q.Q.Q.Q.Q.CLQ.T
mm
oo
Q.CL
TQ.CL'TQ.CLQ.Q.Q.TQ.CLQ.TCLQ.TQ.Q.Q.Q.Q.Q.Q.Q.Q.Q-VD.a.CLCLQ.Q.CLTQ.a.TQ.Q.Q.a.Q.Q.Q.CLQ.CLQ.TTa.Q.Q.Q.Q.Q.Q.CLa.
- — - - — — mm
oo
Q_Ql
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - BR-04
Cti ^ARCADIS
4-2i
-------
SP3T
50
45'
|40
o
O
Q)
C
CD
O)
30
25-
6
CO
£ 20
ra
o
I- 15 H
10
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro o
M ii
n
g
.
¦ .J
J
L
tori r
»- L JU _ _J m
i oo-^r co o> r-co Tj-m r^-05 o co cm t in oco in oo co cm co i-in o) r-cm rr m k co C3>cm co in to co C3> co cmm to h-co m o (D co'j-1^^^Ci^c?r?c?c?c?r?c?t:TrC:mmirtrnrnrnmrnrn
!ooooooooo
Q.CLCLCLCLQ.Q.Q.Q.
o
o
~ GV
o o
a. cl
o
o
o
Surface Water (Round 1)
50
45
g 40
~DT
"TFT
Tetra
Penta
Hexa
Hepta
Octa
Z 13
35-
30
25
O 20
I- 15-
10-
(D
CL
~L
i i i i i i i
ow
Mr
rflVrr-ri
i i i i i
T-cMco^in(Dr^coo)o^co^incDi^oo)cococMco^inoh-^cM^in(Dh-coo)^cMcoin^cDcoa)cocM^ino!^coinocDco^cocMCM^incDO)M^ino^c^in^cM^coOT-cMcocD(^ocoo^cMcocOT—^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocmo*-*-^ ^^CM'cm cm cm cm cm co to co co co (o^iotoco-^-^ ^^^inoininu^uiinco(0(OcocDCDtoi^t^r^r-~i^f^i^i--r^a)»co»»»raa3cocKa>a>a>a)a>oa>ooooooooo
OOOQOOOOOCOCO^COCOCOCQc®COOT-CQCOCOaD^ffllIJGQ(DCQGQCOCOQD^CO<0^lOcQCDO>OcDCOCOCOCOCQCM£0^1IlCOCQlIKDCOCOGQCCICQCOCOCOlD---i--^tOCQ-~icQ^CQ{DCOCOTi'
«- CM CM CM CM CM CM CM CM CM
°q.iiiiq.oooo°oj:oooooooooo^2oooo2$2oo2oooooJooo^oo!J!oooooooooo(^ooooooo®oo®ooooooooooo®®ooooooooo
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Surface Water (Round 2)
50
o
c
o
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
OJ
c
z 1
A
ji
iTi'iTi
n-r
mnfid
Ji1! 1111111111 mi i1
iii1711
ii ii
45-
| 40
03
35
30
Q)
CT>
§ 25
o
CQ
g 20
J2
o
H 15
10
-------
SP3T
50
45'
|40
o
O
Q)
C
CD
O)
30
25-
6
CO
£ 20
ra
o
I- 15 H
10
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro o
M D
H
¦
I
i
i.
- L !l _ ji«
— —_ — m —
CD
Q_
T-cMco^incot^coc»o^coiocoi^oo)cococNcOTrino)i^r-cNrrioi^coo)^cNcoinT-cocoOTcocM^incoh-coinocDco-^coh-aDCNh-a)o^cNO)Trr^tnr-0)cocNo^incocNcotf>cDr^-^to^cNTtooocMcoiof^cocoo^cNcocOT-cor^o^^incoo>c»ocNoo-^r^coc»^CM''3-ioi^-0)OcocN''tf-iocois-ooo)cO'-<
tntncQiri£ntncQCQ(riTT^ITTrT22,7^!£2tY'fVr!JC>'^!c)u?c?t?f?c?c?c?t:Tt;S!5TTf ininininininr^cpi^cococococor^r^^cococpc»cpT-cNOTcp'-<^oc»OTC»ooooocN'--^r-^T--cNCMCNCNCNcocococococoTfincocoTf^^^^^^inincoinininu}cDcococococDh-i---h-N-N-t*-h-r^r^o)co<
nnnnncKK}nmaa™cocDcococoo^cocococommirtrnrnrnmrnrn
!ooooooooo
D.CLCLCLCLO.CLCLQ.
o
o o
o
Surface Water (Round 1)
50
45
40
35-
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro
c
0
-)
D
3
2
Z I
J
¦
1 111 ¦
30
25
O 20
I- 15-
10-
(D
CL
T-cNico^inco^coo)OT-co^inco^oo>cococNco^ina)r^^oj^incDh-coo)^c\icoinr-coooo>cocNj^incDKcoinococo^cocN4CNi^incoo)co^incD^O)inT-cNi^ooOT-cNcocDt^cocooT-c\icocOT-cDr^OT-c\j^incoo)coocNeo^inr^coo)0'-cNj^inr^c^ococNi^incoh~coa)coT-cN4in^c^
c0C0mcDC0C0CDCDCQVV^VVTTCT^^^^^^^^^^^^c?c?^^tTtS^T^^^K>^^^^^^^^^^^^^^f7r~rhrc?c?c?c?c?'_CN|9?c?T-c!'oc?(:??ci50——ocnot-'-^t-t-cnjicncncncncncococococo co^iococo'^-'^ -^^^incoinuiu^uiinco(0(OcocDCDcoi^t^r^^^f^r^r^r^a)cocoo3cococoa3coo)coa>a>OTa>oc&ooooooooo
OOQOOOOOO'^^cs'COfflCOCDCDDQOT-(i]cOcQCQCDcOtIlCDCOCOCDCDCOOQT- CQCO^incQCQO)OcOCQCOCOlicQCNCQ^aDQbcQCQQhcO03CQCOCDCOCOCDCD^^cOCO-^ICD^COCQCQCOTt"
«- a>
CO^ CO CO
0-Q-Q-Q.T 0.T 0.0-0.0-0-0-0-0-0-0. T
Surface Water (Round 2)
50
Mono
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
CO 0
C ¦>
Z II)
I
In
l ™l _ ¦ 1
JUL —fc_
m. L JJ ¦ —
45-
| 40
|S
35
30
Q)
CT)
§ 25
o
CQ
g 20
ro
o
H 15
10
cococMco'^-ma>h-T-cM'a-incor^-coo)'r-cMcomT-cDcoa>cocMi-incDt^-coinococo-^-coh-oocMr-coo)Ox-cMco'ti-~ini-
YT-Yr7T7TCT^!Qc)lcVcVcVQCO c -\h—f \ t \r \t \r \t \t \t \t \t "\t \t \t \t rt
XCD^CQQ.
f OTO
CO 0-030.
^•mco'^-ojinT
OOOCNOt-x
CMfCOOt-CMCOCOI^CDCOOT-CMCOCOT-COI^OT-CM'^-mCDOCOOCMCO'^-inh-COaiO'-
-cm incocoo) o t-cm i-in coo o)^-cmco ^i-in cocoo)
0.Q.0.Q.T OuT 0.CL 0-0.0.0-0.0-0-0/7
cam
oo
CLCL
TQ-CL'TQ.Q-Q.Q.Q.TQ.Q.Q.TQ.CLTQ.Q.Q.Q.CLQ.Q.Q.Q-Q-VO.Q-O.Q-CLQ-ClTQ.CLTCLQ-Q.CLQ-CLCLQ.Q.Q-Q-TTO.CLQ-Q.Q.Q-Q.Q-CL
- — - - — — COCO
oo
Q_0l
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - CL-02
Cti ^ARCADIS
4-2k
-------
SP3T
50
45'
|40
o
O
Q)
C
CD
O)
30
25-
6
CO
£ 20
ra
o
I- 15 H
10
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro o
M D
i
n
~
I
l
L
1
1 ¦ fcl
¦- L U _ I-
T-cMco^incot^coc»o^coiocoi^oo)cocotMcOTrino)i^r-cMrrioi^coo)^cNcoinT-cocoOTcocM^inioh-coinotDco^coh-aDCMh-0)o^cNO)Trr^tnr-0)cocMo^incoeNcotf>cDr^^io^cNTtooocMcoiof^cocoo^cNcocOT-cor^o^^intoo>c»ocMoo^r^coc)T-CM''3-ioi^-0)OeocN''tf-incois-ooo)cO'-<
tntncQiri£ntncQCQ(riTT^ITTrT22,7^!£2tY'fVr!JC>'^!c)u?c?t?f?c?c?c?t:Tt;S!5TTf ininininininr^cpi^cocococotor^r^^totocpc»cpT-cMOTcp'-<^OOTOTc»ooooocM'--^r-^T--cMCMCMCMCMcocococococoTfincocoTf^^^^^^inincoinininu}tDcococococDh-i---h-N-N-t*-h-r^r^o)co<
nnnnncKK}nmmcNmmmcomo^mmmm -
cl oo 0$2
CLO. 0_Y
CNCO in CDN-COO)
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CM CM CM CM CMCM CMCMCM
>mmirtrnrnrnmrnrn
!ooooooooo
Q.CLQ.Q.CLQ.Q.Q.Q.
o
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Surface Water (Round 1)
50
45
g 40
o
c
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
ro a
C J
z n
1
¦
» 1 -
1 1 1 M Ml 1 1
MM
rjUItU
L L nl
Ml II l-ri M M 1 1 1 1 1 1
MM 1 1 II
35-
30
25
O 20
I- 15-
10-
(D
CL
T-cNico^inco^coo)OT-co^inco^oo>cococNco^ina)r^^oj^incDh-coo)^c\icoinr-coooo>cocNj^incDKcoinococo^cor^oocNir^ooo)O^CNico^r^inT-o>cocN4CNi^incoo)co^incD^O)inT-cNi^ooOT-cNcocDt^cocooT-c\icocOT-cDr^OT-c\j^incoo)coocNeo^inr^coo)0'-cNj^inr^o)OcocNi^incoh~coa)coT-cN4in^c^
mmmmmmmmmYYYYYYYCY^^^™^™™^^^^^^^^^tYtS^YY^^K>^^^^^^^^^^^^^^^^^????0?'_CN|5?c?T-c!'oc?(:?cPci50'?—ocnot-'-^t-t-cnjicm cm cm cm cm to toco coco co^iococo'^-'^ -^^^intoinuiu^uiincocotococDtDtoi^t^r^^^f^r^r^r^ajcocooocococoaacocKOTcoajajajOOTOOooooooo
«- CN CM CM CM CM CM CM CM CM
°a_0JXQ-OOOO°O:^OOOOOOOOOO^£OOOO££OO£OOOOO5OOO!£OO!£OOOOOOOOOO£OOOOOOO2OO~OOOOOOOOOOO22?ooOOOOOOO
UJCUn <-> "J
coo"- en a>
COY OQ CO
Q-Q_Q_Q_Y Q.Y Q.Q.CLQ.Q.Q.Q.Q.Q.aT
Surface Water (Round 2)
50
Mono
,
Di
Tri
Tetra
Penta
Hexa
Hepta
Octa
CO 0
C ->
Z 13
¦
1
nr
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1 IL
II
j rfh
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45-
| 40
|S
35
30
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§ 25
o
CQ
g 20
J2
o
H 15
10
cococMco'^-ina>h-T-cN'a-incor^-coo)'r-cMcoinT-cDcoa>cocMi-intDt^-coinococo-^-coh-oocMr-coo)Ox-cMco'ti-~ini-
YT-Yr7T7TCT^!Qc)lcVcVcVQCO c -\h—f \ t \r \t \r \t \t \t \t \t "\t \t \t \t rt
XC0"f COQ-
f OTO
m Q-tno.
^•mco'^-ojinT
OOOCNOt-x
cMtcoot-cMcocoi^tDtooT-cMcocoT-coi^OT-cM'^-mcDocoocMcoM-inh-coaiO'-
-cm inco coo) o t-cm i-in too o)^-cm co ^i-in co coo)
Q.Q.Q.Q.Y OuT Q.Q.Q.Q.Q.Q.Q.Q.CLQ.T
mm
oo
Q.CL
TQ.CL'TQ.CLQ.Q.Q.TQ.CLQ.TCLQ.TQ.Q.Q.Q.Q.Q.Q.Q.Q.Q-VD.a.CLCLQ.Q.CLTQ.a.TQ.Q.Q.a.Q.Q.Q.CLQ.CLQ.TTa.Q.Q.Q.Q.Q.Q.CLa.
- — - - — — mm
oo
Q_Ql
Monochlorobiphenyl
Hexachlorobiphenyl
Dichlorobiphenyl
Heptachlorobiphenyl
Trichlorobiphenyl
Octachlorobiphenyl
Tetrachlorobiphenyl
Nonachlorobiphenyl
Pentachlorobiphenyl
Decachlorobiphenyl
Notes:
1. Nori-detects summed as zero in percent of Total
PCB calculation.
2. Round 1 and 2 discrete surface water samples were
field-filtered prior to laboratory analysis.
3. Parent and duplicate sample results were averaged
for the Round 1 and 2 discrete surface water
sampling.
4. Time-averaged surface water samples were
collected using SP3™ samplers. Round 1 and 2
surface water samples were discrete grab samples.
5 PCB = polychlorinated biphenyl.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
PCB CONGENER MASS DISTRIBUTION
IN SURFACE WATER - SR-01
Cti ^ARCADIS
4-2I
-------
Highway M-59
(RS 0+00)
11
10
Bowen Road
(RS 67+00)
West Marr Road
(RS 196+50)
Chase Lake Road
(RS 368+00)
Steinacker Road
(RS 425+00)
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£
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60
50
40
30
20
10
Bowen
Road
(RS 67+00)
West Marr
Road
(RS 196+50)
Chase Lake
Road
(RS 368+00)
Steinacker
Road
(RS 425+00)
UP-SW-12 UP-SW-11 BR-SW-10 BR-SW-09 BR-SW-08 BR-SW-07 BR-SW-06 BR-SW-05 BR-SW-04 MR-SW-03 CL-SW-02 SR-SW-01
Sampling Location ID
Bridges
Other Streams
Legend:
¦ Discharge Rates Calculated from Round 1 (September 2020) River Parameters
¦ Discharge Rates Calculated from Round 2 (November 2020) River Parameters
Average Discharge Rates based on Round 1 and 2 measurements
¦ Discharge Rates Estimated for SP3™ Sampling Locations
Notes:
1. River stationing IDs provided on January 12, 2021 by CTI and Associates, Inc.
2. Locations for other streams obtained from Michigan GIS Open Data portal.
3. Flows were calculated by multiplying channel width, water depth, and mid-depth velocity at each location (Table 4-6).
4. Discharge rates for SP3™ sampling locations include the average discharge rates calculated for the Round 1 and 2
sampling events or the calculated distance-weighted average discharge rates, if needed (Table 4-6).
5. The x-axis indicates the sequential order of site locations; locations are not proportionally spaced.
6. cfs = cubic feet per second
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
ESTIMATED RIVER
DISCHARGE RATES
Gta ^ARCADIS
4-4
-------
>
re
5
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1.2
1.1
0.9
0.7
0.6
0.5
0.4
0.3
0.2
0.1
-0.1
Highway M-59
(RS 0+00)
1.1J
Bowen Road
(RS 67+00)
West Marr
Road
(RS 196+50)
Chase Lake
Road
(RS 368+00)
Steinacker
Road
(RS 425+00)
1
1
1
1
1
I
1
1
1
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0.002
0.03
1
1
1
1
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1
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1
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1
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1
—i-
i
i
i
i
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i
UP-SW-12 to
UP-SW-11
UP-SW-11 to
BR-SW-10
BR-SW-10 to
BR-SW-09
BR-SW-09 to
BR-SW-08
BR-SW-08 to
BR-SW-07
BR-SW-07 to
BR-SW-06
BR-SW-06 to
BR-SW-05
BR-SW-05 to
BR-SW-04
BR-SW-04 to MR-SW-03 to CL-SW-02 to
MR-SW-03 CL-SW-02 SR-SW-01
Distance Interval by Location ID
Legend:
Bridges
Other Streams
Notes:
1. River stationing IDs provided on January 12, 2021 by CTI and Associates, Inc.
2. Locations for other streams obtained from Michigan GIS Open Data portal.
3. Time-averaged surface water samples were collected using the SP3™ samplers and calculated Cfree results for each
sampler are plotted.
4. Load gain was determined by dividing the change in PCB load by the distance between stations.
5. The x-axis indicates the sequential order of site locations; locations are not proportionally spaced.
6. PCB = polychlorinated biphenyl.
7. mg/day-ft = milligrams per day per foot
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
TOTAL PCB LOAD GAIN ANALYSIS
Gta ^ARCADIS
4-5
-------
PCA Biplot
PCB Homologue Profile
-1 o 1
PC1 (47.6%)
Tri Tetra Penta Hexa Hepta Octa Nona Deca
PCB Homolog
Scree plot
Cluster Dendrogram
Notes:
1. The principal component analysis (PCA) was
completed for the SP3™ and parent surface
water samples from Rounds 1 and 2. However,
the following samples with Total Polychlorinated
Biphenyls (PCBs) less than 1 nanogram per liter
(ng/L) were excluded:
• UP-SW-11_17.4.2009240904 (0.0358 ng/L)
• UP-SW-11_18.2011081306 (0.0177 ng/L)
• UP-SW-12_13.2.2011081348 (0.0185 ng/L)
• UP-SW-12_13.8.2009241005 (0.170 ng/L)
• BR-SW-10_15.2009231704 (0.00379 ng/L)
• BR-SW-10_15.2011081111 (0.0597 ng/L)
• BR-SW-04_14.4.2011071447 (0.529 ng/L)
• CL-SW-02_9.6.2009221144 (0.227 ng/L)
• BR-SP3-10_20201108 (0.134 ng/L)
• UP-SP3-11_20201108 (0.145 ng/L)
• UP-SP3-12_20201108 (0.0789 ng/L).
2. On the PCA Biplot, PCA Scores (points) provide
for interpreting relationships among samples and
PCA Loadings (arrows) provide for interpreting
relationships among variables.
3. PCA/hierarchical clustering analysis (HCA)
conducted using the R FactoMineR package (Le,
Josse, and Husson, 2008).
4. PC = principal component
Cluster
Cluster 1
Cluster 2
Cluster 3
Cluster 4
5 6 7
Dimensions
SHIAWASSEE RIVER SUPERFUND SITE.
2020-2021 BASELINE SAMPLING DATA REPORT
PCB COMPOSITION IN SP3 AND SURFACE
WATER SAMPLES
-------
White Sucker
3.0
2.5
; 2.0
O)
£
^ a r-
m 1.5
o
CL
o
H 1.0
0.5
0.0
Upstream M-59
ISM-29
FSCV = 2.7 mg/kg
T
ISM-M1-27
f
Bowen
Road
W. Marr
Road
Chase Lake
Road
X
3.0-
2.5-
; 2.0 -
D)
£
H! a r-
CQ 1.5
o
CL
o
H 1.0-1
0.5-
0.0-1
All Sampling
Locations
FSCV = 2.7 mg/kg
Panfish
O)
£
m
o
CL
75
o
0.0
W. Marr
Road
Chase Lake
Road
3.0-
2.5-
; 2.0 -
D)
£
"> a r-
m 1.5
o
CL
75
o
H 1.0-
0.5-
0.0 -I
All Sampling
Locations
FSCV = 2.7 mg/kg
1
o
Note:
Detect
90th Percentile
75th Percentile
Mean
¦ 50th Percentile (Median)
25th Percentile
10th Percentile
Non-detect
(plotted at detection limit
FSCV = Fish Consumption Screening Value for
"Do Not Eat" Meal Category (MDCH, 2016; see
Note 1)
mg/kg = milligrams per kilogram
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
TOTAL PCB CONGENERS
IN 2021 FISH SAMPLES
1. The comparison to FSCV is presented as a line of evidence to demonstrate
progress toward reducing risks to fish consumers. Any revisions to the
consumption advisories will be subject to further sampling and data review by
the State of Michigan.
CIS ^ARCADIS
FIGURE
5-1
-------
White Sucker
1.6 J
Upstream M-59
ISM-29
ISM-M1-27
Bowen
Road
W. Marr
Road
Chase Lake
Road
1.6-
All Sampling
Locations
1.4-
1.4-
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r
1.2-
1.2-
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£
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ISM-29
ISM-M1-27
Bowen
Road
W. Marr
Road
Chase Lake
Road
1.6-
All Sampling
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1.4-
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90th Percentile
75th Percentile
Mean
50th Percentile (Median)
25th Percentile
10th Percentile
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
1
LIPID IN 2021 FISH TISSUE SAMPLES
Q Non-detect
(plotted at detection limit
6
!
^ARCADIS |
FIGURE
5-2
-------
White Sucker
Bowen
Road
W. Marr
Road
Chase Lake
Road
All Sampling
Locations
500
450 -\
= 400
D)
1350
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g 300
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o
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I
Chase Lake
Road
T
CD
g 300
Q.
Detect
90th Percentile
75th Percentile
Mean
¦ 50th Percentile (Median)
25th Percentile
10th Percentile
Non-detect
(plotted at detection limit
mg/kg = milligrams per kilogram
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
LIPID-NORMALIZED TOTAL PCB
CONGENERS IN 2021 FISH SAMPLES
Gtl ^ARCADIS I m
-------
800
0)
"o> 600
3
(/)
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Length (cm)
D)
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350
300
250
200
150
100
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^ ^
Kendall's Rank Correlation
o
p < 0.05
0
o
D
0
Q.
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<
8e®
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Sb Q
• %
^ »? ^
Length (cm)
Length (cm)
Sampling Location
Upstream M-59 ISM-29
ISM-M1 -27
Bowen Road
W. Marr Road
Chase Lake Road
Notes:
1. Pearson's product
moment correlation
coefficient reported for
bivariate norma! datasets
2. Kendal! rank correlation
coefficient reported for
datasets that are not
bivariate normal.
3. Bivariate normality tested
using Mardia's test for
multivariate normality.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
CORRELATION BETWEEN
PCB, LIPID, WEIGHT, AND LENGTH
IN PANFISH SAMPLES
Cti ^ARCADIS
5-4
-------
1500
o>
O)
3
(/)
CO
o
CL
TO
O
1000
500
"'|R
ll'sT
)5
Kenda
p < 0.
au b=
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1
c£
c
O
a
0
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1
0
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i
§
oy cy
1500
D)
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3
CO
CD
o
Q_
03
o
1000
500
'
Cy
Lipid Fraction
o
cy
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P = 0
on r
986
=-0.00
3^
O
©
0
0
0 0
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0.014
0.012
c
g
o 0.010
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P
Q.
0.008
0.006
0.004
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0
Pearson r
=-0.10
1
0
11
Q.
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^ O
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8
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Weight (g)
Length (cm)
1500
D5
O)
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cn
CO
O
Q.
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1000
500
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p = 0.985
0
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a
800
700
3 600
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400
300
Pear
son Correlation
Pear
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•
p<0
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•
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©
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0
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3 0
0
0
0
0
0
0
Q,C
O
£
Length (cm)
Length (cm)
Sampling Location
Upstream M-59 ISM-29
ISM-M1 -27
Bowen Road
W. Marr Road
Chase Lake Road
Notes:
1. Pearson's product
moment correlation
coefficient reported for
bivariate norma! datasets
2. Kendal! rank correlation
coefficient reported for
datasets that are not
bivariate normal.
3. Bivariate normality tested
using Mardia's test for
multivariate normality.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
CORRELATION BETWEEN
PCB, LIPID, WEIGHT, AND LENGTH
IN WHITE SUCKER SAMPLES
Cti ^ARCADIS
5-5
-------
White Sucker
High
way M-59 Bower
Road West M
srr Road Chase L
ake Road o
(RS
0+00) (RS 6
7+00) (RS 1<
)6+50) (RS 3
38+00) £ +
£ S
1 s
-4
b-
<1>
CO
1
i-
4
~
•
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1
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T
3
h
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r1
2.0
1.8
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3
o
1.0
0.8
0.6
0.4
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rocorocococo^-^j-^-^-
Distance (ft)
Panfish
West Marr Road
(RS 196+50)
High
way M-59
(RS 0+00)
(RS i
7+00)
Chase Lake Road
(RS 368+00)
c
8
CD
E
CO
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CM
CM
CM
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CM
CM
CM
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
¦ct
Distance (ft)
Detect
90th Percentile
75th Percentile
Mean
¦ 50th Percentile (Median)
25th Percentile
10th Percentile
Non-detect
(plotted at detection limit
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
WET-WEIGHT TOTAL PCBs IN 2021 WHITE
SUCKER AND PANFISH
Cti ^ARCADIS
5-6
-------
White Sucker
450
400
o- 350
O)
300
u)
CD
O
Q- 250
ro
o
I-
"S 200
? 150
100
50
High
(RS
way M-59 Bower
Road West Ms
7+00) (RS 1S
rr Road Chase Li
R+RO) (RS
ke Road o
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Distance (ft)
Panfish
1,000-
(R,c
0+00) (RS 6
7+00) (RS 1S
6+50) (RS 3
58+00) ir &
a> ^
o CO
• i ^
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CNJ
CO
•*-
¦*-
CM
CNJ
CNJ
CNJ
CNJ
CNJ
CNJ
CNJ
CNJ
CNJ
CO
CO
CO
CO
CO
CO
CO
CO
CO
CO
"3"
-vf
Distance (ft)
Detect
90th Percentile
75th Percentile
Mean
¦ 50th Percentile (Median)
25th Percentile
10th Percentile
Non-detect
(plotted at detection limit
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
LIPID-NORMALIZED TOTAL PCBs IN 2021
WHITE SUCKER AND PANFISH
Cti ^ARCADIS
5-7
-------
Upstream M-59 ISM-29
ISM-M1-27
Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca
Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca
Bowen Road
W. Marr Road
Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca
Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca
Chase Lake Road
Mono Di Tri Tetra Penta Hexa Hepta Octa Nona Deca
Notes:
1. On the principal component analysis (RCA) Biplot,
PCA Scores (points) provide for interpreting
relationships among samples and PCA Loadings
(arrows) provide for interpreting relationships
among variables.
2. PCA/hierarchical clustering analysis (HCA)
evaluation conducted using the R FactoMineR
package (Le, Josse, and Husson, 2008).
3. PC = principal component
4. Mono = monochlorobiphenyl
Di = dichlorobiphenyl
Tri = trichlorobiphenyl
Tetra = tetrachlorobiphenyl
Penta = pentachlorobiphenyl
Hexa = hexachlorobiphenyl
Hepta = heptachlorobiphenyl
Octa = octachlorobiphenyl,
Nona = nonachlorobiphenyl
Deca = decachlorobiphenyl
PCA Biplot
LO
oo 0
CM
O
Q.
-2
-3
Cluster 1
inociwobiphem
Dichlorobiphenyl
Trichlorobip enyl
ctachlorobia^nyl
HeptacJjrorobipher
Hexachlorobiphenyl
Cluster 2
Pentachlorob
6
Scree plot
Tetrachlorobipf
O White Sucker
A Panfish
2 4
PC1 (71.4%)
Cluster Dendrogram
PCs = 2
\-
I
\
n
**
it—«
123456789 10
Dimensions
SHIAWASSEE RIVER SUPERFUND SITE.
2020-2021 BASELINE SAMPLING DATA REPORT
PCB COMPOSITION IN 2021 WHITE SUCKER
AND PANFISH SAMPLES
CIS ^ARCADIS I 5-8
-------
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS -
HIGHWAY M-59 TO BOWEN ROAD
Ot! ^ARCADIS
6-1 a
-------
5*25" *
1,400
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
ft
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS
BOWEN ROAD TO WEST BARRON ROAD
ots ^ARCADIS
6-1 b
-------
W333
wmm
woskb
1MJ33®
WD3
-'Amberwoodfm*^
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS
WEST BARRON ROAD TO WEST MARR ROAD
ots ^ARCADIS
6-1 c
-------
5
Kr-134lE»T-1351
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS
WEST MARR ROAD TO WEST ALLEN ROAD
Ot! ^ARCADIS
6-1 d
-------
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS
WEST ALLEN ROAD TO CHASE LAKE ROAD
ots ^ARCADIS
6-1 e
-------
LEGEND
^ Sediment Transect Locations
River Centerline
Other Streams
Transect Polygon
Notes:
1. River centerline and stationing provided on January 12, 2021 by CTI and
Associates, Inc.
2. Data for other rivers and streams obtained from Michigan GIS Open Data portal.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
SEDIMENT SURFACE
WEIGHTED AVERAGE CONCENTRATION AREAS -
CHASE LAKE ROAD TO STEINACKER ROAD
ots ^ARCADIS
6-1 f
-------
Depth Interval: 0-2
Distance (ft)
1 -
CO
o
Q_
0.1
(A) Upstream of
the Site
B) Near Site betweer
Highway M-59
and Bowen Road
(C) Bowen Road to
West Marr Road
(D) West Marr Road
to Chase Lake Road
(E) Chase Lake Roac
to Steinacker Road
1/4
35/37
72/72
98/98
32/32
(25%)
(94.6%)
(10?%)
(id8%)
(100%)
•
•
I
•
•
—t—
—•—
•
:
—
|—|
n
—
—
_
i ,
i—
—I
\—
¦
R
m
P
b
d
•
i
•
•
1
0
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
0.332
No
B - D
0.0171
Yes
B - E
<0.01
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
O
m
0.332
No
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Peto-Peto Test conducted for datasets with non-
detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
T
(above max non-detect detection limit)
90th Percentile
75th Percentile
L
50th Percentile (Median)
Maximum Non-detect Detection Limit
25th Percentile
10th Percentile
O Non-detect
(plotted at detection limit
© Detect
(below max non-detect detection limit)
• Non-detects included at the detection limit in percentile
estimation.
• Non-detects plotted at the detection limit.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOTAL PCBs
0- to 2-INCH DEPTH
Cti ^ARCADIS
6-2a
-------
Depth Interval: 2-6
Distance (ft)
10
m
O
Q.
0.1
(A) Upstream of
the Site
-(0%r
B) Near Site betweer
Highway M-59
and Bowen Road
34^37
~(si;s%r
•
4
(C) Bowen Road to
West Marr Road
72/72
~;ioo%r
(D) West Marr Road
to Chase Lake Road
(100%)
m
(E) Chase Lake Roac
to Steinacker Road
32/32
~(T00%)
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
0.104
No
B - D
0.216
No
B - E
0.0302
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
O
m
0.054
No
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Peto-Peto Test conducted for datasets with non-
detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
T
(above max non-detect detection limit)
90th Percentile
75th Percentile
L
50th Percentile (Median)
Maximum Non-detect Detection Limit
25th Percentile
10th Percentile
O Non-detect
(plotted at detection limit
© Detect
(below max non-detect detection limit)
• Non-detects included at the detection limit in percentile
estimation.
• Non-detects plotted at the detection limit.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOTAL PCBs
2- to 6-INCH DEPTH
Cti ^ARCADIS
6-2b
-------
Depth Interval: 0-2
700-
600-
o 500-
400-
300
O
O
200
100-
C\IC\JC\JCMC\JC\JCMC\JCMCMCOCOCOrOCOCOCOCO
Distance (ft)
100'
o
O 10'
(A) Upstream of
the Site
—1/4—
(25%)
B) Near Site betweer
Highway M-59
and Bowen Road
35/37
(94.6%)
(C) Bowen Road to
West Marr Road
72Q2
(100%)
(D) West Marr Road
to Chase Lake Road
(100%)
E) Chase Lake Roac
to Steinacker Road
32/32
(100%)
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
0.0297
Yes
B - D
<0.01
Yes
B - E
<0.01
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
O
m
<0.01
Yes
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Peto-Peto Test conducted for datasets with non-
detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
T
(above max non-detect detection limit)
90th Percentile
75th Percentile
L
50th Percentile (Median)
Maximum Non-detect Detection Limit
25th Percentile
10th Percentile
O Non-detect
(plotted at detection limit
© Detect
(below max non-detect detection limit)
• Non-detects included at the detection limit in percentile
estimation.
• Non-detects plotted at the detection limit.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOC-ADJUSTED
TOTAL PCBs 0- to 2-INCH DEPTH
Cti ^ARCADIS
6-3a
-------
Depth Interval: 2-6
1,000
900
800
700
cn
o
Q.
o
o
I-
600
500
400
300
200
100
T,
11
ill
IhjJikilMtlil
J
<=> ooooooooo
0^,000000000
H. ° o o o o o o o o o
^7 T-" cm" co rj-" m" "
ooooooooo
ooooooooo
o o o o o o o o o
cn" co" m" id" r-~ co" ct>" o"
JOOOOOOOOOOOOOOOOOOOO
JOOOOOOOOOOOOOOOOOOOO
) o o o o o o o o o o o o o o o o o o o o
_ j" co" m" cd h- oo" of o" cm" co" rf m" id co" cn o" ¦*-" oj"
CMCMCMCMCMC\)C\IC\|CMCMCOCOCOCOCOCOCOCOCOCO'<3-TfTt
Distance (ft)
? 1,000
co
o
Q_
o
o
I-
100
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
<0.01
Yes
B - D
<0.01
Yes
B - E
<0.01
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
D
m
0.0209
Yes
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Peto-Peto Test conducted for datasets with non-
detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
T
(above max non-detect detection limit)
90th Percentile
75th Percentile
L
50th Percentile (Median)
Maximum Non-detect Detection Limit
25th Percentile
10th Percentile
O Non-detect
(plotted at detection limit
© Detect
(below max non-detect detection limit)
• Non-detects included at the detection limit in percentile
estimation.
• Non-detects plotted at the detection limit.
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOC-ADJUSTED
TOTAL PCBs 2- to 6-INCH DEPTH
Cti ^ARCADIS
6-3b
-------
Depth Interval: 0-2
70,000
60,000
. 50,000-
-e 40,000
03
o
o 30,000-
20,000
10,000
Distance (ft)
80,000
70,000-
i
' 60,000
50,000
40,000
I
30,000
20,000-|
10,000
0-1
(A) Upstream of
the Site
—373—
(100%)
B) Near Site betweei
Highway M-59
and Bowen Road
37757
(100%)
(C) Bowen Road to
West Marr Road
72/72
(100%)
(D) West Marr Road
to Chase Lake Road
(100%)
—¦—
f
E) Chase Lake Roac
to Steinacker Road
32/32
(100%)
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
0.0289
Yes
B - D
<0.01
Yes
B - E
<0.01
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
O
m
0.0228
Yes
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
Detect
90th Percentile
75th Percentile
50th Percentile (Median)
25th Percentile
10th Percentile
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOTAL ORGANIC
CARBON 0- to 2-INCH DEPTH
Cti ^ARCADIS
6-4a
-------
Depth Interval: 2-6
Distance (ft)
70,000
. 60,000
I
I
• 50,000 H
40,000
' 30,000 -
20,000 -
10,000
o-i
(A) Upstream of
the Site
B) Near Site betweei
Highway M-59
and Bowen Road
(C) Bowen Road to
West Marr Road
(D) West Marr Road
to Chase Lake Road
E) Chase Lake Roac
to Steinacker Road
4/4
37/37
72172
§8/98
32/32
(100%)
(100%)
(100%)
(100%)
(100%)
1
•
•
•
•
J
•
•
•
.
J
I ,
1 x
h
H
H
•
m
r
•
Compare Distribution
Comparison
p-value
Sig. Dif.
(Yes/No)
B-C
<0.01
Yes
B - D
<0.01
Yes
B - E
<0.01
Yes
Q
O
<0.01
Yes
O
m
<0.01
Yes
O
m
<0.01
Yes
• Comparsions not conducted on datasets with
small sample size (n<8).
• Wilcoxon Rank Sum Test conducted for
datasets without non-detect results.
• Benjamini-Hochberg adjustment was used to
minimize the false discovery rate.
Boxplot Legend
Detect
90th Percentile
75th Percentile
50th Percentile (Median)
25th Percentile
10th Percentile
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SAMPLE TOTAL ORGANIC
CARBON 2- to 6-INCH DEPTH
Cti ^ARCADIS
6-4b
-------
5.5
5.0
4.5
4.0
|> 3.5
m 3.0
O
CL
3 2.5
o
I—
2.0
1.5
1.0
0.5
0.0
O >r~>0000000000000000000000000000000000
o 222222222oooooooooooooooooooooooooooooooooo
° O o O O O O O O O O °- O- °- O- O- O- O- O- O- O- O- °- °- °- °- °- °- °- °- °- °- °- °- °- °. °_ °_ °. °. °. °_ °_ °. °_
T-" " fvf rn rrf in rn isS rn rn ° t-" OJ CO in" CO h- CO CT>" O v-~ CM co" Io" CO oo" 0> O t-~ cm" co" in" CD h-" CO O) o" ¦*-" CM co"
, t-iNr^^TUJiun-wt»JT_T_T_T_x_^_T_T_T_T_CvJCNJfN|(N,(NCN1(NJ(N|(NJO>Jf0f0f0f0r0c0f0f0f0f0^j.^.^j.^1.
Distance (ft)
Length-weighted Surface Sediment (0-6 in) and Surface Weighted Area Concentration
6.0
5.5
5.0
4.5
4.0
|> 3.5
CD 3.0
O
o.
S 25
O
I—
2.0
1.5
1.0
0.5
0.0
O r-»r-jr-><->r-»r-»r-»r-><—>0000000000000000000000000000000000
o 222222222oooooooooooooooooooooooooooooooooo
° O o O O O O O O O O °- °- °- °- °- °- °- °. °- °- °- °- °- °- °- °- °. °- °- °_ °. O o o o o o o o o o o o o
t-' - -j _|T irr trr k~ fr,- tyr o ¦<-" cm" co m" co" h-~ en" en o" t-" cm" co" m" co" h-" oo" a>" o" •<-" cm" co" m" cd |C co of o" •=-" cm" co"
i ¦^».NfJ'q-u;kUI^-UJU)T_T_T_T_T_T_x_T_T_T_cMcMCMCMCMCMCMCMCMCMCOCOCOncOCOCOCOCOr0^t"^^^t
Distance (ft)
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SURFACE-WEIGHTED AREA
CONCENTRATION TOTAL PCBs
Ota ^ARCADIS I IT
Surface Sediment (0-2 in) and Surface Weighted Area Concentration
§
§
§
§
B
o
M
&
8
u
M
£
w
a.
w
Q:
n
n
1
o
1
i
£
a:
t
if
-------
Surface Sediment (0-2 in) and Surface Weighted Area Concentration
1,000
900
800
700
o
o
600
500
Distance (ft)
Length-weighted Surface Sediment (0-6 in) and Surface Weighted Area Concentration
1,000
900
800
700
o
o
600
500
400
300
200-
SWA
199
(mg/kg-oi )
100
SWi
C = 73.8 i
(mg/kg
SWAC = 29.5 (mg/kg-oc)
I
11
M
MMiiff
/AC = 23 (mg/kg-c|c)
11 m i-f-rH n i huTTTi
o ooooooooo
O oOOOOOOOO
°_ OOOOOOOOOO
oooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooo
CMCO'JifllDNCOO)
CMCOTj-mCD^-OOOO
(NO'tlfilDNCOOiO
(MPOtmiDNCOOlO
CMCNJCMCMCMOJCMCNtMCMCOCOCOCOrOrOCOCOCOCO^t-Tj-
Distance (ft)
2021 Baseline Data SWAC (mg/kg-oc)
River Mile 0 to 2-inch 0 to 6-inch
1
89.5
197
2
155
144
3
52.7
45.4
4
49.6
50.5
5
32.2
36.1
6
24.2
29.0
7
20.6
24.5
8
21.0
23.4
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SURFACE-WEIGHTED AREA
CONCENTRATION TOC-ADJUSTED TOTAL PCBs
Cti ^ARCADIS
6-6
-------
Surface Sediment (0-2 in) and Surface Weighted Area Concentration
70,000
60,000
Distance (ft)
Length-weighted Surface Sediment (0-6 in) and Surface Weighted Area Concentration
70,000
60,000
, 50,000
40,000
p 30,000
20,000
10,000
Distance (ft)
2021 Baseline Data SWAC (mg/kg)
River Mile
0 to 2-inch
0 to 6-inch
1
5,010
5,590
2
4,920
5,760
3
6,180
8,660
4
7,620
8,320
5
15,900
15,700
6
24,500
23,400
7
36,200
34,000
8
28,100
30,300
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
2021 SEDIMENT SURFACE-WEIGHTED AREA
CONCENTRATION TOTAL ORGANIC CARBON
Cti ^ARCADIS
6-7
-------
Depth Range = 0-2 in
B
3-1 T-
221
-201 T-
81 T-
61 T-
I41
T-
21 T-
101 T-
J81 T-(
i61 T-
941
T-
321 T-(
01
o
o
+
o
o
+
o
«n
+
o
o
+
o
o
+
CO
o>
CD
CT>
CD
CO
or
a:
CM
—
CK
CO
01
CO
cc
>N
1
05
TJ
05
£
0)
TJ
05
—
C
1
a:
o>
if
o
CD
§
™
o
CO
—
oooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooo
(MCO^lOlDSCOO)
(O t t ^ Tt
Distance (ft)
Core stationing is approximate. Postioning of triplicate cores adjusted for plotting purposes.
Parent Sample
Triplicate Sample 1
Triplicate Sample 2
Nori-detect (pink border;
plotted at reporting limit)
SHIAWASSEE RIVER SUPERFUND SITE
2020-2021 BASELINE SAMPLING DATA REPORT
TOTAL PCBs IN 2021
TRIPLICATE SAMPLE RESULTS
Gtl ^ARCADIS I
6-8
-------
APPENDIX F
SITE INSPECTION PHOTOS
-------
Shiawassee River Superfund Site
Five-Year Review Site Inspection Photos from November 2, 2023
Image 1: Chemical storage in the ECS, LLC facility located in the northeast portion of the former CFC
building.
1-1
-------
Shiawassee River Superfund Site
Five-Year Review Site Inspection Photos from November 2, 2023
Image 3: View facing north located adjacent and southwest of the former CFC building. Observed are
asphalt and concrete piles of debris.
Image 4: View facing south at the northern end of the former CFC building. Totes of chemicals are stored
on top of one another.
1-2
-------
Shiawassee River Superfund Site
Five-Year Review Site Inspection Photos from November 2, 2023
Image 5: View facing southwest at the northeast portion of the former CFC building. A frothy, clear
liquid is observed to be discharging from a pipe connected to the northeast portion of the former CFC
building, adjacent to the ECS, LLC facility. The liquid had a chemical odor.
Image 6: View facing northwest, north of the former CFC property on the same parcel. A pile of debris
(i.e., furniture, construction material, wood, household waste, used car parts, etc.) was observed to be
placed on what appears to be unlined soil
1-3
-------
Shiawassee River Superfund Site
Five-Year Review Site Inspection Photos from November 2, 2023
Image 7: View facing southwest, north of the former CFC property on the same parcel. Several
excavators appear to be located near an exposed mound of soil. The mound of soil is located adjacent
and east of the Shiawassee River.
Image 8: View facing southwest, north of the former CFC property on the same parcel. Excavator parts
and wood debris are stored on what appears to be unlined soil.
1-4
-------
Shiawassee River Superfund Site
Five-Year Review Site Inspection Photos from November 2, 2023
Image 9: View facing north, northeast of the former CFC property on the same parcel. Landscaping
material is stored on what appears to be unlined soil.
1-5
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APPENDIX G
SITE INSPECTION CHECKLIST
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Site Inspection Checklist
I. SITE INFORMATION
Site name:
Date of inspection:
Shiawassee River
11/2/2023
Location and Region:
EPA ID:
Howell, MI - Region 5
MID980794473
Agency, office, or company leading the FYR:
Weather/temperature:
EPA Region 5
Overcast and 30s
Remedy Includes: (Check all that apply)
~ Landfill cover/containment
~ Monitored natural attenuation
~ Access controls
~ Groundwater containment
~ Institutional controls
~ Vertical barrier walls
~ Groundwater pump and treatment
~ Surface water collection and treatment
IEI Other: Upland and floodplain soil removal,
river sediment removal, monitored natural
recovery
Attachments:
El Inspection team roster attached
~ Site map attached
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Site Inspection Checklist
II. INTKRVIKWS (Check all that apply)
... , Click or tap to
1. O&M Site Manager ,,Ha 1
Interviewed: ~ at site ~ at office ~ by phone Phone Number: Click here to enter text.
Problems, suggestions: ~ Report attached
An O&M Plan to monitor and evaluate natural recovery of river sediments has not been
prepared or submitted to EPA. On September 18, 2023, EPA requested that the PRPs
provide a long-term monitoring plan (LTMP) for sediments for EPA review during the
current Five-Year Review. At the time of this site inspection, an O&M Plan the LTMP has
not been provided to EPA.
x, Click or tap to
2 O&M Staff Name , Title , .
• enter a date.
Interviewed: ~ at site ~ at office ~ by phone Phone Number: Click here to enter text.
Problems, suggestions: ~ Report attached
See above. EPA is unaware of any designated O&M staff.
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: EGLE
Contact: Mary Schafer, Senior Project Manager, 11/2/2023, P: 517-582-1663
Problems, suggestions: ~ Report attached
According to the State, a sheen was observed in the river adjacent to the former CFC facility in the
summer of 2023, potentially near the area of the former discharge line and overflow area.
However, the site inspection did not identify a sheen. Soil movement is ongoing on-site. Concern
that PFAS is present in the deeper aquifer, though the State does not have data on such
contamination and PFAS investigation pertains only to OU2.
Agency: Click or tap here to enter text.
Contact: Name , Title , Click or tap to enter a date., P: Phone Number
Problems, suggestions: ~ Report attached
Click or tap here to enter text.
Agency: Click or tap here to enter text.
Contact: Name , Title , Click or tap to enter a date., P: Phone Number
Problems, suggestions: ~ Report attached
Click or tap here to enter text.
Agency: Click or tap here to enter text.
Contact: Name , Title , Click or tap to enter a date., P: Phone Number
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Site Inspection Checklist
Problems, suggestions:
Click or tap here to enter text.
4. Other Interviews (optional): ~ Report attached
A Lucy Road Resources, LLC official indicated that wetland restoration is ongoing northeast
of the former CFC property due to EGLE-imposed wetland violations.
III. ON-SI 1 K IKK IMKM S& RKCORDS VI
1UIHKI) (Check all thai apply)
1.
O&M Documents
~ O&M manual ~ Readily available
~ Up to date [>
3 N/A
~ As-built drawings ~ Readily available
~ Up to date ^
3 N/A
~ Maintenance logs ~ Readily available
~ Up to date ^
3 N/A
Remarks: See Sections 11(1) and 11(2) above
2.
Site-Specific Health and Safety Plan
~ Contingency Plan/Emergency Response Plan
Remarks: Click or tap here to enter text.
~ Readily available
~ Readily available
3.
O&M and OSHA Training Records
~ Readily available
~ Up to date ^
3 N/A
Remarks: Click or tap here to enter text.
4.
Permits and Service Agreements
~ Air discharge permit ~ Readily available
~ Up to date [>
3 N/A
~ Effluent discharge ~ Readily available
~ Up to date ^
3 N/A
~ Waste disposal, POTW ~ Readily available
~ Up to date ^
3 N/A
~ Other permits: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
5.
Gas Generation Records
~ Readily available
~ Up to date ^
3 N/A
Remarks: Click or tap here to enter text.
6.
Settlement Monument Records
~ Readily available
~ Up to date ^
3 N/A
Remarks: Click or tap here to enter text.
7.
Groundwater Monitoring Records
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Site Inspection Checklist
~ Readily available
~ Up to date ^
N/A
Remarks: Click or tap here to entt
;r text.
8.
Leachate Extraction Records
~ Readily available
~ Up to date ^
N/A
Remarks: Click or tap here to entt
;r text.
9.
Discharge Compliance Records
~ Air
~ Readily available
~ Up to date ISI
N/A
~Water (effluent)
~ Readily available
~ Up to date ^
N/A
Remarks: Click or tap here to entt
;r text.
10.
Daily Access/Security Logs
~ Readily available
~ Up to date ^
N/A
Remarks: Click or tap here to entt
;r text.
IV. O&M COSTS
1.
O&M Organization
~ State in-house
~ Contractor for State
~ PRP in-house
~ Contractor for PRP
~ Federal Facility in-house
~ Contractor for Federal Facility
Remarks: Click or tap here to entt
;r text.
2.
O&M Cost Records
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Site Inspection Checklist
~Readily available ~ Up to date ~ Funding mechanism/agreement in place
Original O&M cost estimate No known O&M plan for monitored
natural recovery (MNR).
Total annual cost by year for review period if available
~ Breakdown attached
From
To
Total cost
Click or tap to enter a
Click or tap to
Click or tap here to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click or tap to enter a
Click or tap to
Click or tap here to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click or tap to enter a
Click or tap to
Click or tap here to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click or tap to enter a
Click or tap to
Click or tap here to
~ Breakdown attached
date.
enter a date.
enter text.
From
To
Total cost
Click or tap to enter a
Click or tap to
Click or tap here to
~ Breakdown attached
date.
enter a date.
enter text.
3. Unanticipated or Unusually High O&M Costs During Review Period
Describe costs and reasons:
Click or tap here to enter text.
V. ACCKSS AM) INSTI II TIONAI. ( OM ROI.S
M Applicable
~ N/A
1.
Fencing Damaged ~ Location shown on site map
Remarks: Click or tap here to enter text.
~ Gates secured
E N/A
2.
Other Access Restrictions ~ Location shown on site map
Remarks: Click or tap here to enter text.
~ Gates secured
3.
Institutional Controls (ICs)
A. Implementation and Enforcement
Site conditions imply ICs not properly implemented
~ Yes E No
~ N/A
Site conditions imply ICs not being fully enforced
~ Yes E No
~ N/A
Type of monitoring (e.g., self-reporting, drive by)
O&M Report
Frequency
Annual
Responsible party/agency
PRP
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Site Inspection Checklist
El Yes
~ No
~ N/A
E Yes
~ No
~ N/A
E Yes
~ No
~ N/A
~ Yes
E No
~ N/A
Contact: Brian Finley, Project Scientist, 11/2/2023, P: 248-560-0728
Reporting is up-to-date
Reports are verified by the lead agency
Specific requirements in deed or decision documents have been
met
Violations have been reported
Other problems or suggestions:
The PRP should remove discussion of the 2010 restrictive covenant from future O&M Inspection
Reports.
B. Adequacy ^ ICs are adequate ~ ICs are inadequate ~ N/A
Remarks: The current landowner appears to be in compliance with the ROD requirement to maintain
the property zoned industrial. However, the ROD also stipulates that deed restrictions are required and
the 2010 covenant deed has been determined to be ineffective and not legally enforceable. Pursuant to
the Partial CD, the PRP should use best efforts to secure a new deed restriction with the current
landowner that can be enforced by the PRP and EPA.
4. General
A. Vandalism/Trespassing ~ Location shown on site map El No vandalism evident
Remarks: Click or tap here to enter text.
B. Land use changes on site IEI N/A
Remarks: Click or tap here to enter text.
C. Land use changes off site ~ N/A
Remarks: According to map in the 2010 Restrictive Covenant, the area north of the former CFC facility
within the parcel boundary No. 4706-27-200-010, Livingston County, Michigan is not a part of the
Site. The 2019 FYR Report mistakenly identified this area as included in the Site boundary. This area
has undergone significant alteration since the land was purchased by Lucy Road Resources, LLC in
2010. Most off the areas within the parcel north of the former CFC facility have been cleared of all
vegetation and appears to have been graded for storage of a variety of vehicles and other materials
(e.g., tires, excavators, used car parts, construction debris, etc.). It appears that land use changes and
grading may be ongoing, as an operating excavator near an exposed soil mound northwest of the
property, adjacent to the Shiawassee River, was observed. A landscaping supply company that operates
out of the former CFC property stores sand, soil, mulch, gravel, etc. in open three-sided 'bins' or bays
on the southeastern portion of the property. It does not appear that there is a boundary layer between
this material and the underlying soil/gravel. There is a detention basin at the northern end of the
property. This basin has outfalls that are believed to lead to wetlands associated with the Shiawassee
River. According to personnel from Lucy Road Resources LLC, wetland restoration is ongoing
northeast of the property due to EGLE wetland violations.
VI. GENERAL SITE CONDITIONS
1. Roads El Applicable ~ N/A
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Site Inspection Checklist
A. Roads damaged ~ Location shown on site map ~ Roads adequate ~ N/A
Remarks: There are asphalt paved roads with cracks observed on the east and west of the property,
leading to the northern portion of the property. A sinkhole was observed in the asphalt in the southwest
portion of the parking lot of the former CFC property. According to an official from Lucy Road
Resources, LLC, the sinkhole has been present since 2021. The Lucy Road Resource, LLC official had
no knowledge of any planned repair. There is no requirement documented in a decision document to
maintain the roads at a specific condition.
B. Other Site Conditions
Remarks: 1) A frothy, clear liquid with a chemical odor was observed actively discharging from a pipe
along the northeast portion of the former CFC building, adjacent to the operations of the soap
manufacturer, ECS, LLC. The discharge was reported by ECS, LLC as distilled water, a part of the
soap manufacturing process. 2) Large debris piles are located on the area north of the former CFC
property, including but not limited to construction debris, used cars, used tires, furniture, and wood
debris. The debris piles appear to be stored on exposed soil. 3) Numerous totes storing chemicals were
observed to be stored on top of one another inside the ECS, LLC facility as well as north and adjacent
to the former CFC property. 4) Excavation of soil and grading activities appear to be ongoing
northwest of the former CFC property, adjacent to the Shiwassee River.
VII. LANDFILL COVERS
1. Landfill Surface ~ Applicable IE] N/A
A. Settlement (Low Spots) ~ 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. Cracks ~ Location Shown on Site Map ~ Cracking Not Evident
Lengths: Click or tap here . ... Depths: Click or tap here to enter
r Widths: Click or tap hereto enter text,
to enter text. 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. Holes ~ Location Shown on Site Map ~ Holes 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.
E. Vegetative Cover ~ Grass ~ Cover Properly Established
~ Tress/Shrubs (indicate size and locations on a diagram ~ No Signs of Stress
Remarks: Click or tap here to enter text.
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Site Inspection Checklist
F. Alternative Cover (armored rock, concrete, etc.)
~ N/A
Remarks: Click or ta
p here to enter text.
G. Bulges
~ Location Shown on Site Map ~ Bulges Not Evident
Areal Extent: Click
;»r tap here to enter text.
Height: Click or tap here to enter text.
Remarks: Click or ta
p here to enter text.
H. Wet Areas/Water Damage ~ Wet Areas/Water Damage Not Evident
~ Wet Areas
~ Location Shown on Site Map
Areal Extent: or tap here to enter
text.
~ Ponding
~ Location Shown on Site Map
Areal Extent: or tap here to enter
text.
~ Seeps
~ Location Shown on Site Map
Areal Extent: or tap here to enter
text.
~ Soft Subgrade
~ Location Shown on Site Map
Areal Extent: or tap here to enter
text.
Remarks: Click or ta
p here to enter text.
I. Slope Instability
~ Location Shown on Site Map
~ Slope Instability Not Evident
~ Slides
Areal Extent: or tap here to enter
text.
Remarks: Click or ta
p here to enter text.
2. Benches
~ Applicable
~ 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 ta
p here to enter text.
B. Bench Breached
~ Location Shown on Site Map
~ N/A or Okay
Remarks: Click or ta
p here to enter text.
C. Bench Overtopped
~ Location Shown on Site Map
~ N/A or Okay
Remarks: Click or ta
p here to enter text.
3. Letdown Channels
~ Applicable
~ 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
;»r 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.
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: or tap here to enter text.
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: or tap here 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
Areal Extent: Click or tap here to enter text.
~ Vegetation in channels does not obstruct
flow
Remarks: Click or tap here to enter text.
4. Cover Penetrations ~ Applicable ~ N/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
~ Functioning ~ Routinely sampled
~ Good condition
~ Evidence of leakage at penetration
~ Needs Maintenance
~ N/A
Remarks: Click or tap here to enter text.
C. Monitoring Wells
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Site Inspection Checklist
~ 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.
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 to
enter text.
E. Settlement Monuments
~ Located ~ Routinely Surveyed ~ N/A
Remarks: Click or tap here to
enter text.
5.
Gas Collection and Treatment
~ Applicable
~ N/A
A. Gas Treatment Facilities
~ Flaring
~ Thermal Destruction
~ Collection for Reuse
~ Good condition
~ Needs Maintenance
Remarks: Click or tap here to
enter text.
B. Gas Collection Wells, Manifolds, and Piping
~ Good condition
~ Needs Maintenance
~ N/A
Remarks: Click or tap here to
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 to
enter text.
6.
Cover Drainage Layer
~ Applicable
~ N/A
A. Outlet Pipes Inspected
~ Functioning
~ N/A
Remarks: Click or tap here to
enter text.
B. Outlet Rock Inspected
~ Functioning
~ N/A
Remarks: Click or tap here to
enter text.
7.
Detention/Sediment Ponds
~ Applicable
~ N/A
A. Siltation
~ Siltation Not Evident
~ N/A
Areal Extent: Click or tap her
e to enter text. Depth: CIic
< or tap here to enter text.
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Site Inspection Checklist
Remarks: Click or tap here to enter text.
B. Erosion ~ Erosion Not Evident
Areal Extent: Click or tap here to enter text. Depth: . or tap here to enter text.
Remarks: Click or tap here to enter text.
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
~ N/A
A. Deformations ~ Location Shown on Site Map
Horizontal Displacement: Click or tap here to enter text.
Vertical Displacement: Click or tap here to enter text.
Rotational Displacement: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
~ Deformation Not Evident
B. Degradation ~ Location Shown on Site Map
Remarks: Click or tap here to enter text.
~ Deformation Not Evident
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: : or tap here to enter text.
Remarks: Click or tap here to enter text.
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: . or tap here to enter text.
Remarks: Click or tap here to enter text.
D. Discharge Structure
Remarks '
~ Functioning
~ N/A
Mil. VERTICAL BARRIER WAI LS
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Site Inspection Checklist
~ Applicable
E N/A
1.
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.
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: Click or tap here to enter text.
Remarks: Click or tap here to enter text.
ix. (;uoiM)\\ \n u/si ui \( i: watku rk.mkdiks
~ Applicable
E N/A
1.
Groundwater Extraction Wells, Pumps, and Pipelines ~ Applicable ~ N/A
A. Pumps, Wellhead Plumbing, and Electrical
~ N/A
~ 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
~ 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
Remarks: Click or tap here to enter text.
2.
Surface Water Collection Structures, Pumps, and Pipelines ~ Applicable ~ 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
Remarks: Click or tap here to enter text.
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Site Inspection Checklist
3. Treatment System ~ Applicable
~ N/A
A. Treatment Train (Check components that apply)
~ Metals removal ~ Oil/Water Separation
~ Bioremediation
~ Air Stripping ~ Carbon Absorbers
~ Filters Click or tap here to enter text.
~ Additive (e.g. chelation agent, flocculent) Click or tap here to
enter text.
~ Others Click or tap here to enter text.
~ Good Condition
~ Needs Maintenance
~ Sampling ports properly marked and functional
~ Sampling/maintenance log displayed and up to date
~ Equipment properly identified
~ Quantity of groundwater treated annually Click or tap here to
enter text.
~ Quantity of surface water treated annually Click or tap here tc
enter text.
Remarks: Click or tap here to enter text.
B. Electrical Enclosures and Panels (properly rated and functional)
~ N/A ~ Good Condition
~ Needs Maintenance
Remarks: Click or tap here to enter text.
C. Tanks, Vaults, Storage Vessels ~ N/A
~ Proper Secondary Containment ~ Good Condition
~ Needs Maintenance
Remarks: Click or tap here to enter text.
D. Discharge Structure and Appurtenances
~ N/A ~ Good Condition
~ Needs Maintenance
Remarks: Click or tap here to enter text.
E. Treatment Building(s)
~ N/A ~ 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
~ Properly secured/locked ~ Functioning
~ Routinely sampled ~ All required wells located
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Site Inspection Checklist
~ Good condition ~ Needs Maintenance
Remarks Click or tap here to enter text.
4. Monitoring Data
A. Monitoring Data:
~ Is Routinely Submitted on Time ~ Is of Acceptable Quality
B. Monitoring Data Suggests:
~ Groundwater plume is effectively contained ~ Contaminant concentrations are declining
5. Monitored Natural Attenuation
A. Monitoring Wells (natural attenuation remedy)
~ Properly secured/locked ~ Functioning
~ All required wells located ~ Needs Maintenance
Remarks: Click or tap here to enter text.
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.
XL 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.).
The remedy required initial excavation of PCB-contaminated material followed by monitored natural
recovery and implementation of ICs. Together, these elements were intended to "reduce the potential risk
caused by exposure of PCBs to local residents and others, such as fishermen." Preliminary evaluation of
the baseline sediment, surface water, and fish tissue data collected from 2020 to 2021 indicate that natural
recovery appears to be occurring, however, long-term sediment cleanup value of 0.003-0.2 mg/kg PCBs
has not been met at any of the Shiawassee River miles.
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.
The 2001 ROD states that "a long-term monitoring plan will be developed during remedial design to ensure
that natural recovery is adequate to meet the long-term cleanup range in a reasonable timeframe and that
these levels remain protective of mink or other appropriate ecological receptors." A long-term monitoring
plan is still not developed and EPA is unable to assess whether monitoring natural recovery is occurring
and is protective of ecological receptors.
3. Early Indicators of Potential Remedy Problems
M N/A
~ Routinely sampled
~ Good condition
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Site Inspection Checklist
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.
A total PCB load gain analysis discussed in the draft 2020-2021 Baseline Sampling Data Report suggests a
source of residual dissolved PCB contributions to the water column is located adjacent to the former CFC
facility, within the area previously targeted by dredging. Additional source input may prevent achievement
of the long-term cleanup goal, and additional mitigation to address ongoing source(s) may be required.
4. Early Indicators of Potential Remedy Problems
Describe possible opportunities for optimization in monitoring tasks or the operation of the remedy.
A long-term monitoring plan should be developed to include an approach to evaluate natural recovery,
including a sampling plan and schedule to continue routine monitoring of PCB concentrations in sediment,
surface water, and fish tissue for a robust analysis of natural recovery. The PRP will also need to submit
MNR reports that evaluate comparison between the 2021 baseline data and LTM data and assesses whether
natural recovery is occurring, surface sediment SWAC PCB concentration changes and rates of decline,
and trend analysis with comparison to the long-term cleanup goal. Lastly, a conceptual site model should
be developed in advance of the Long-Term Monitoring Plan to understand potential ongoing sources of
PCBs to the river, transport, current exposure concentrations, and changes over time.
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