Sixth Five-year Review Report for Wausau Ground Water Contamination Superfund Site Marathon County Wisconsin


955611

SIXTH FIVE-YEAR REVIEW REPORT
FOR

WAUSAU GROUND WATER CONTAMINATION SUPERFUND SITE
MARATHON COUNTY, WISCONSIN



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Prepared by

U.S. Environmental Protection Agency
Region 5
Chicago, Illinois

4/9/2020

Douglas Ballotti, Director

Superfurid &i Emergency Management Division

Signed by: DOUGLAS BALLOTTI

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Table of Contents

LIST 01 ABBREVIATIONS & ACRONYMS	3

I.	INTRODUCTION	5

FIVE-YEAR REVIEW SUMMARY FORM	6

II.	RESPONSE ACTION SUMMARY	7

Basis for Taking Action	7

Response Actions	8

Status of Implementation	10

IC Summary Table	12

Systems Operations/Operation & Maintenance	17

III.	PROGRESS SINCE THE LAST REVIEW	18

IV.	FIVE-YEAR REVIEW PROCESS	20

Community Notification, Involvement & Site Interviews	20

Data Review	20

Site Inspection	30

V.	TECHNICAL ASSESSMENT	31

QUESTION A: Is the remedy functioning as intended by the decision documents?	31

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?	33

QUESTION C: Has any other information come to light that could call into question the
protectiveness of the remedy?	34

VI.	ISSUES/RECOMMENDATIONS	34

VII.	PROTECTIVENESS STATEMENT	36

VIII.	NEXT REVIEW	37

APPENDICES

Appendix A - Existing Site Information /Site Chronology

Appendix B - Background

Appendix C - List of Reviewed Documents

Appendix D - Five-Year Review Checklist, and List of Participants on Five-year Review Inspection
Appendix E - Copy of Newspaper Notice Publication Announcing Five-Year Review Start
Appendix F - Deed Restrictions Implemented on Wausau Chemical Property
Appendix G - Excerpt from Wausau Municipal Code - Title 19; Chapter 19.30 and WDNR Notice
BRRTS/GIS Registry

Appendix H - VOC Analytical Results in Water Effluent at the Wausau Water Supply (2018/2019) and

City Water Supply Well CW-3 VOC Concentration Trend
Appendix I - SVE Close Out Letters
Appendix J - O&M Cost Estimates

1

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Appendix K: Figures

Figure 1	- Regional Location Map

Figure 1.1	- Site Location

Figure 1.2	- Site Plan Layout with Monitoring Well Locations

Figure 1.3	- Aerial Photograph (2015)

Figure 2 (A-G)	- Groundwater Elevations and Contours (2013-2019)

Figure 3 (A-S)	- Charts- Total Chlorinated VOCs in Groundwater (2019)

Figure 4 (A-P)	- Graphs depicting Total Chlorinated VOCs in Groundwater (historical thru 2019)

Figure 5	- Total Chlorinated VOCs in Groundwater (2019)

Figure 6	- Well Survey in Area

Figure 7	- EW1 chart

Appendix L: Tables 3.2, 4.1, and 7

Table 3.2 - 2018 City Well Pumping Summary

Table 4.1 - Individual VOC concentrations for Monitoring Wells (September 2019)
Table 7 - 2019 Groundwater Monitoring Plan Parameters

Tables (included within the Report)

Table 1 - Groundwater Cleanup Standards

Table 2 - Summary of Planned and/or Implemented ICs

Table 3 - Protectiveness Determinations/Statements from the 2015 FYR

Table 4 - West Bank Total Chlorinated VOCs (|ig/L)

Table 5 - East Bank Total Chlorinated VOCs (|ig/L)

Table 6 - Status of Recommendations from the 2015 FYR

2

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LIST OF ABBREVIATIONS & ACRONYMS

AMR

Annual Monitoring Report

ARAR

Applicable or Relevant and Appropriate Requirement

BGS

Below Ground Surface

C12DCE

Cis-1-2 Dichloroethane

CERCLA

Comprehensive Environmental Response, Compensation, and Liability Act

CD

Consent Decree

CFR

Code of Federal Regulations

CRA

Conestoga Rovers Associates

COC

Contaminant of Concern

CVOCs

Chlorinated Volatile Organic Compounds

DCA

Dichloroethane

DCE

Dichloroethylene or Dichloroethene

DEE

Diethyl ether

EPA

United States Environmental Protection Agency

ES

Enforcement Standard

EW

Extraction Well

FR

Federal Register

FS

Feasibility Study

FYR

Five-Year Review

GIS

Geographic Information System

GPM

Gallons per Minute

ICs

Institutional Controls

ICIAP

Institutional Controls Implementation and Assurance Plan

MCL

Maximum Contaminant Level

MGD

Million Gallons per Day

MW

Monitoring Well

NCP

National Oil and Hazardous Substances Pollution Contingency Plan

NPL

National Priorities List

NPL

National Priorities List

O&M

Operation and Maintenance

OU

Operable Unit

PAL

Preventative Action Limit

PCE

Perchloroethylene or Tetrachloroethylene

PRP

Potentially Responsible Party

Ppb

Parts per billion or ug/L (water) and ug/kg (soil/sediment)

Ppm

Parts per million, or mg/L (water) or mg/kg (soil/sediment)

RA

Remedial Action

RAO

Remedial Action Objective

RD

Remedial Design

RI

Remedial Investigation

ROD

Record of Decision

RPM

Remedial Project Manager

SARA

Superfund Amendments and Reauthorization Act of 1986

Site

Wausau Ground Water Contamination Superfund Site

TAL

Target Analyte List

3

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TBC

To Be Considered

TCA

1,1,1-Trichloroethane or 1,1,1-TCA

TCE

T ri chl oroethy 1 ene

LTS

Long-Term Stewardship

^g/L

micrograms per liter

|ig/m3

micrograms per cubic meter

UU/UE

Unlimited Use and Unrestricted Exposure

VC

Vinyl Chloride

VI

Vapor Intrusion

VOCs

Volatile Organic Compounds

WDNR

Wisconsin Department of Natural Resources

4

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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 Sixth FYR for the Wausau Ground Water Contamination Superfund Site (Site).

The triggering action for this policy review is the completion date of the previous FYR. The FYR
has been prepared due to the fact that hazardous substances, pollutants or contaminants remain at
the Site above levels that allow for unlimited use and unrestricted exposure (UU/UE).

The Site consists of two OUs and both OUs will be addressed in this FYR. OU1 addresses the interim
actions at the Site essentially selecting a remedy for the groundwater issues. OU2 is the Final Action that
confirms the groundwater remedy and requires additional remedial actions.

The Wausau Ground Water Contamination Superfund Site FYR was led by Sheri L. Bianchin, Remedial
Project Manager (RPM), EPA. Participants included Matthew A. Thompson, state agency representative
at the Wisconsin Department of Natural Resources (WDNR). The relevant entities, such as WDNR and
Charles Ahrens of GHD who represented the Potentially Responsible Party (PRPs) during the FYR
inspection, were notified of the initiation of the FYR. The review began on April 10, 2019.

Site Background

The Site is located in the City of Wausau, Wisconsin ("Wausau" or "the City"), a city of approximately
39,000 people located in central Wisconsin along the banks of the Wisconsin River. The Site potentially
affects six of the City's drinking water production/supply wells. The City's production wells are adjacent
to the Wisconsin River and provide drinking water for people who reside on both sides of the Wisconsin
River. In 1982, three of the wells were found to be contaminated with high levels of volatile organic
compounds (VOCs).1

1 In the West Bank area, groundwater concentrations of Trichloroethylene (TCE) and its daughter products near the former
landfill were over 2,000 u/L, and concentrations near CW6 were over 4,000 ug/L (1987). The extent of the plume, based on
1987 data, is shown on the attached Figure 2.1 in Appendix K (1989). In 2000, the highest level of total VOCs was in well
R3D at 41,800 parts per billion (ppb).

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located along the East Bank of the river2. The current land use remains mixed use consisting of
commercial, industrial and residential uses.

The State of Wisconsin and EPA determined that, as a result of these historical operations at the Site, the
groundwater and soil had become contaminated primarily with VOCs. In 1986, EPA added the Site to
the National Priorities List (NPL). See Appendix A for additional background information and a Site
location map in Appendix K.

FIVE-YEAR REVIEW SUMMARY FORM

SITE IDENTIFICATION

Site Name:

Wausau Ground Water Contamination Site |

EPA ID:

WID 980993521

| Region: 5

State: WI

City/County: Wausau/ Marathon County

SITE STATUS

NPL Status: Final

Multiple OUs?

Yes

Has the site achieved construction completion?

Yes

Lead agency: EPA

[If "Other Federal Agency", enter Agency name]:

Author name (Federal or State Project Manager): Sheri L. Bianchin

Author affiliation: EPA

Review period: 4/10/2019 - 3/13/2020

Date of site inspection: 10/29/2019

Type of review: Policy

Review number: 6

Triggering action date: 4/9/2015

Due date (five years after triggering action date: 4/9/2020

2 Three primary source areas of ground water contamination have been identified: a municipal landfill, the Wausau Chemical
Company and possibly the Wausau Energy Co. The landfill, which is on the west side of the site, operated from 1948 to 1955
and accepted almost all commercial, industrial and residential waste generated within Wausau. The landfill appears to be the
predominant source of TCE contamination of the underlying aquifer. On the east side of the river, the Wausau Chemical Co.
was found to be a likely source of soil and ground water contamination due to spills from past operations. Wausau Chemical,
a bulk solvent distributer and transfer stations, spilled 1,000 gallons of Perchloroethylene (PCE)-contaminated waste in 1983
alone. On the east side, Wausau Energy, a petroleum bulk storage and disposal center, may have contributed to the
contamination at the Site.

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II. RESPONSE ACTION SUMMARY

Basis for Taking Action

A two-phase remedial investigation (RI) and Feasibility Study (FS) were carried out between

August 1987 and September 1988.

The significant results of the RI, documented in a 1989 report, included the following:

• The City's production wells are located in a wedge-shaped aquifer composed of glacial
outwash materials deposited within the pre-glacial bedrock river valley of the Wisconsin
River. The aquifer is the sole source of potable water for the City of Wausau.

• The primary contaminants of concern (COC) affecting both the soil and groundwater are VOCs
including PCE, TCE, cis-l,2-dichloroethene (C12DCE), chloroform, carbon tetrachloride and
vinyl chloride (VC).

• Two separate sources of contamination were identified within the zone of influence of the
City's production wells. The first source contributing to the groundwater contamination was
found to be a former municipal landfill located south of municipal supply well known as City
Well (CW) 6 on the Marathon Electric property in the West Bank area (west of the Wisconsin
River).

• The predominant source of TCE contamination to CW6 and CW3 on the West Bank appears to be
the Marathon Electric property/Former City Landfill area.

• The second source contributing to groundwater contamination at the Site was found to be the
Wausau Chemical facility located between CW3 and CW4 in the East Bank area (east of the
Wisconsin River). The primary COC found in the East Bank groundwater is PCE.

• Low concentrations of TCE and C12DCE were also detected in the aquifer under the Wisconsin
River and were believed to be a remnant of the West Bank plume that had historically migrated
beneath the river to the East Well Field.

• Soils at both source areas were contaminated with YOCs. The soils in the vicinity of the
former municipal landfill and Marathon Electric were contaminated primarily with TCE.

Soils on the Wausau Chemical property were contaminated primarily with PCE. Various
exposure pathways for the soils were evaluated; however, the primary risk was found to come
from the continuing leaching of the YOCs to the groundwater.

• Three plumes of contamination were found within the zone of influence of the City's
production wells. The first was composed primarily of TCE and was emanating from the
former municipal landfill (west of the Wisconsin River). This plume was found to split at the
boundary of the source area, with one leg migrating north to CW6 and the second leg
migrating under the Wisconsin River to CW3. The second plume originated from the southern
boundary of the Wausau Chemical property east of the Wisconsin River and impacted both

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CW3 and CW4. This plume was comprised primarily of PCE but contained other YOCs as
well. The third plume originated from the northern boundary of the Wausau Chemical
property east of the Wisconsin River, was primarily comprised of PCE and was impacting CW3.

• During the RI/FS, several important potential exposure pathways were found for the Site.
Potential health risks were evaluated for the following exposure pathways and potentially
exposed population: (1) residents using municipal water exposed to contaminant
concentrations equal to the laboratory detection limits of 0.5 ug/1 for PCE and TCE, and 1.0
ug/1 for DCE; (2) hypothetical, future users of a private well installed within the
contaminated aquifer. It was assumed that a user would be exposed to the highest
concentrations found in groundwater, approximately 4300 ug/1, to obtain the worst-case
potential risk for this exposure scenario.

Response Actions

In 1985, while the RI/FS was underway, an initial response action was taken by the City of Wausau.
A groundwater extraction system with air stripping treatment (required by the State of Wisconsin) began
operating at the Wausau Chemical facility. The system consisted of a series of extraction wells in the
shallow portion of the aquifer at the south end of the Wausau Chemical property. The Wausau Chemical
groundwater system operated until 1996, when it was shut down and abandoned.

EPA issued an interim Record of Decision (ROD) in 1988 and a final ROD in 1989. EPA determined
that the Site would be managed with two OUs as determined by the two RODs. EPA and WDNR
entered into judicial settlements with potentially liable parties to fund the cleanups. The judicial
settlements are memorialized in Consent Decrees (CDs) entered in 1989 and 1991.

The two primary Remedial Action Objectives (RAOs) of the 1988 ROD for OU1 (Interim Action ROD)
addressing TCE in the West Well Field area are the following:

• Protection from long-term exposure to low levels of TCE from ingestion of drinking water; and

• Protection from future increased levels of contamination to the West Well Field.

The response actions outlined for the Site in the December 1988 interim ROD included the
following remedial components:

• Installation of a groundwater extraction well located in the southern portion of the contaminant
plume;

• Implementation of a treatment system for removal of contaminants;

• Installation of an additional extraction well, as necessary; and

• Preparation of an operation and maintenance (O&M) monitoring program.

The selected remedy established that the cleanup levels for the COCs in groundwater are the
Maximum Contaminant Levels (MCLs) drinking water standards, found in the Safe Drinking

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Water Act and the groundwater protection standards. WDNR's groundwater quality standards (WI
Administrative Rule Chapter NR 140) are numerical standards set at two levels: an enforcement
standard (ES) which is usually the same as the federal drinking water standard (except VC for the COCs
at this Site) and a lower preventive action limit (PAL), which triggers the need for remedial response or
other action at a facility.

The RAOs of the 1989 ROD for OU2 (Final ROD) were to address the remaining concerns at the
Site following implementation of the Interim Action and are as follow:

•	Reduction of long-term exposure to low levels of VOCs from ingestion of drinking water;

•	Protection from potential future use of private wells in contaminated groundwater; and

•	Protection from emissions of contaminants from proposed water treatment systems that release
VOCs to the atmosphere.

The response actions outlined for the Site in the September 1989 final ROD included the following
additional remedial components:

•	Installation of soil vapor extraction (SYE) systems to remove YOC contaminants from soils at
each of the identified source areas;

•	Treatment of off-gases from the SYE system using vapor phase carbon units (the carbon was to
be regenerated off-site); and

•	Groundwater remediation utilizing the municipal wells and existing air strippers for expedited
removal of contaminant plumes.

This remedy also includes monitoring of groundwater and soil. The groundwater cleanup
standards for the Site are both the EPA's drinking water standards (MCLs) to protect drinking
water and the WDNR's groundwater standards (WDNR Chapter NR 140) (ESs) to protect
groundwater. These standards are shown below in Table 1 along with the WDNR's PALs.
Although the WDNR PALs are not the performance standards specified by the ROD, EPA
expects that the WDNR would require that the PALs be met for groundwater protection in
order to close out the Site.

Table 1- Groundwater Cleanup Standards

Contaminant of
Concern

Federal

MCL (ug/L or ppb)

Wisconsin NR 140
ESs (ug/L or ppb)

Wisconsin NR 140
PALs (ug/L or
ppb)

TCE

5

5

0.5

PCE

5

5

0.5

C12DCE

70

7

0.7

9

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VC

0.2

0.02

Although soil specific, numerical cleanup levels were not established in the 1989 ROD, the
ROD stated: the performance standards for the SVE in source soils will be determined using a mass-
flux groundwater model to determine what cleanup levels are needed in soils to achieve cleanup of the
aquifer. These cleanup levels will be based on the requirement to attain Wisconsin NR 140 groundwater
standards for PCE (1.0 ug/1) and TCE (1.8 ug/1) at the source boundary. Attainment of cleanup levels
will be confirmed through sample analysis of groundwater at the boundary of the source areas.

As discussed below, risk evaluations were eventually conducted by the WDNR within its
closure process for the East Bank and West Bank SYE systems. This process was used to
determine when the East Bank and West Bank SYE systems could be turned off and
dismantled. WDNR has required post closure procedures to be followed along with the
implementation of Institutional Controls (ICs). For example, WDNR requires a pavement cover
and building maintenance as conditions of closure, which, in effect, requires an annual inspection of the
paved areas surrounding the Wausau Chemical property. These requirements have not been
incorporated in the decision documents; however, consideration should be given to adding
these requirements to the remedy to ensure long-term protectiveness.

Status of Implementation

The remedial action components included in the 1988 and 1989 RODs have been
implemented. The PRPs initiated the remedial action after agreeing to implement the 1988 ROD
through a CD that was entered with the court on July 7, 1989. After that, the final remedial action
occurred through a CD entered with the court on January 24, 1991. The final remedial action at the Site
consisted of two SVE systems to address the source areas as well as groundwater extraction and
treatment utilizing existing municipal production wells (CW3 and CW6) and a remediation well (EW1).
The Site location is shown on Figure 1.1, and a Site plan is presented on Figure 1.2, located in Appendix
K.

The West Bank municipal supply wells, EW1, and site monitoring well locations are shown on the
Site plan. (See Figure 1.2 in Appendix K.) EW1 was installed to remove contaminants from the south
end of the plume and to create a hydraulic flow barrier between the source area and City Well CW6.
The groundwater remediation at the Wausau Site has been ongoing for over 25 years.

Construction and operation of a treatment system for the City's drinking water system,
installation of a groundwater extraction well located in the West Bank contaminant plume
and construction and operation of two SVE systems were completed in accordance with
approved work plans. The treatment for the municipal drinking water system was installed
in 1985. Extraction Well (EW1) began to operate in 1990 and, along with the two city wells
(CW3 & CW6), captured the various plumes for treatment. Since that time, the City of
Wausau has operated its production wells, including the air strippers to remove any VOCs in the
water. The SYE systems began operating in January 1994. The West Bank SVE system was
shut down in April 1996. The East Bank SYE system was shut down in January 2001, and
ICs were implemented for those areas in accordance with WDNRs closure requirements (see
Old Landfill Area section below). The Preliminary Close-Out Report, which documents the
completion of construction, was finalized in March 1994.

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City Production Wells

Both CW3 and CW6 are operating as required as part of the remediation system at the Site. Drinking
water is monitored at the City of Wausau Water Utility to ensure that the air strippers are efficiently
removing the YOCs and that the water meets the drinking water performance standards. As
mentioned earlier, the City operates six production wells. While only CW3 and CW6 are part of the
remediation system, data for all the City's wells are presented in the Annual Monitoring Reports (AMR)
provided to EPA and WDNR, consistent with previous reports. Each AMR shows, by month, the
number of hours each well was operated, the number of gallons pumped from each well and the average
pumping rate while the well was operating.

Recommended pumping rates for CW3 and CW6 were established in an August 4, 1995, letter from
EPA to ensure appropriate capture of the plumes. In accordance with the letter, pumping of CW3 was to
be maintained between 65 hours per week at 1,200 gallons per minute (gpm) to 100 hours per week at
1,100 gpm. Pumping of CW6 was set at 85 hours per week at 1,400 gpm. CW3 and CW6 generally
operate on alternate weekly schedules where CW6 operates on the weekdays and CW3 operates more on
the weekends.

During 2019, CW3 operated for an average of 71 hours per week with an average pumping rate of 1,276
gpm, exceeding the requirements of 65 hours per week and average flow rate of 1,200 gpm.
CW6 pumped an average of 96.3 hours per week with an average pumping rate of 1,346 gpm in 2019.
Although well rehabilitation is conducted on a regular basis, CW6 is no longer capable of pumping at
the prescribed rate of 1,400 gpm. However, the pumping duration of CW6 has been increased to an
average of more than 95 hours per week, which is considerably greater than the requirement of 85 hours
per week, thus offsetting the decreased pumping rate. The total volume of groundwater pumped by CW-
6 during 2019 was 9% higher than the EPA-recommended volume of 371,000,000 gallons/year.

Old Landfill Area

The old landfill on the Marathon Electric Property is covered mostly with asphalt paving materials.
WDNR approved final closure of the East Bank source remediation SVE system in September 2007.
EPA acknowledged the closure as part of the remedial action process. As part of ongoing O&M, EPA
has required that, at a minimum, the PRPs conduct an annual inspection to monitor the integrity of the
paved areas of the property and make recommendations to minimize rainwater infiltration and prevent
direct human contact with soils. These inspections are documented in the AMR.

Although it is inspected periodically and maintained, the landfill cover does not appear to be fully
effective in preventing infiltration of precipitation which may be causing more groundwater
contamination. The landfill cover must be evaluated to determine what additional upgrades are needed.

(Former) Wausau Chemical Pavement

The pavement at the Site is inspected annually and presented in the AMR. This pavement serves as a
cover over the areas which were contaminated with VOCs and treated. The pavement is currently in
good condition.

Vapor Intrusion (VI) Investigation

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The VI Investigation Work Plan was approved in 2017 by EPA, and VI work has been underway
since then. From March 2017 to present, the PRPs performed additional field work to supplement
existing Site data in an effort to better understand the potential for VI risk in areas adjacent to the
known groundwater plume footprints at the Site. In March 2017, temporary monitoring wells were
installed, and groundwater samples were collected for VOC analysis to further delineate groundwater
impacts in residential and commercial/industrial areas on the West Bank and the East Bank.
In addition, vapor probes were installed, and vapor samples were collected to delineate the horizontal
and vertical extent of potential VOCs in the vadose zone on the West Bank and the East Bank.

This is discussed further in the Data Review section of this document. Additionally, more VI work is
needed to determine if the VI pathway is a concern at the Site.

Institutional Controls

Areas that do not support UU/UE and for which ICs3 are required are noted in the Table 2 below.
Maps that depict the current conditions of the Site and areas that do not allow for UU/UE will be
developed as part of the required IC evaluation activities.

Table 2: Summary of Planned and/or Implemented ICs.

Media, engineered
controls, itiul areas
lli;il do not support
I I 11 K based on
current conditions

IC s
Needed

IC sC idled
lor in the
Decision
Documents

Inipiicted
Pa reel (s)4

IC

Objeclnc

Title of IC
Instrument
Implemented and
Date (or planned)

Former Loading
Dock at Wausau
Chemical Company
Property

Area of Soil treated
to industrial cleanup
standards

Yes

No

Review is
underway

Commercial/
industrial use
only; prohibit
residential use;
prohibit well
installation

Proprietary
Controls in-
place:

Deed Restriction
(recorded on
April 26, 2007 at
the Marathon
County Register
of Deeds - see
Appendix F)

Governmental
Controls in-place:
Zoned industrial

3	ICs are non-engineered instruments, such as administrative and legal controls, that help minimize the potential for exposure
to contamination and that protect the integrity of the remedy. ICs are required to ensure long-term protectiveness for any
areas which do not allow for UU/UE and ensure no inappropriate land and groundwater uses occur and maintain the integrity
of the remedy.

4	If the notation is "review is underway" then there is some uncertainty of exactly where ICs are needed, and this needs to be
further explored.

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Informational
Controls in-place:
Notice of residual
contamination
placed on WDNR's
website
(BRRTS/GIS)
Registry per WI
regulation

Governmental
Controls (Planned)
Imposition of
Continuing
Obligations by
WDNR per the WI
regulations
(updates are
planned)

Landfill on
Marathon Electric
Property - two
parcels
Area of Soil
treated to industrial
cleanup standards

Yes

No

Two Parcels:
291-2907-
252-0990 and
291-
2907-252-

0997.
Review of
affected
parcels is
underway

Commercial/
industrial use
only; prohibit
residential use;
prohibit well
installation

Proprietary
Controls in-place:
Deed Restriction
(recorded on
April 26, 2007 at
the Marathon
County Register
of Deeds - see
Appendix F)

Governmental
Controls in-place:
Zoned industrial

Informational
Controls in-place:
Notice of residual
contamination
placed on WDNR's
website
(BRRTS/GIS)
Registry per WI
regulation

Continuing
Obligations per the
WDNR regulations
(updates planned)

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Groundwater -
Wausau Chemical
Company Property

Yes

No

Area within
the City of
Wausau where
residual GW
contamination
from the Site
has become to
be located
(See map in
Appendix J)

Prohibit residential
use; prohibit well
installation

Same as above

Groundwater -
former landfill on
Marathon Electric
property

Yes

No

Same as above

Prohibit residential
use; prohibit well
installation

Same as above

Groundwater —
Other areas where
levels will not allow

UU/UE

Yes

No

Maps
currently
available;
however, a
review is
underway

Ensure no
inappropriate
groundwater uses

Same as above

Possible Vapor
Intrusion Impacted
Areas

Areas
under
review

No

Review is
underway

If VOC vapors
move or have the
potential to move
into structures such
as homes or
commercial
establishments
above health based
levels, more work,
such as mitigation,
may be required

Consideration will
be given to
updating the ICs
including
establishing
continuing
obligations per the
WDNR regulations.

Status of ICs

Although not clearly specified in the ROD5, ICs are necessary to ensure long-term protectiveness of

5 Although the RODs imply that ICs would be necessary to protect the integrity of the remedy and minimize potential
for exposure, the requirement is not clear. The scope of OU1 is limited to the contaminant plume impacting the west
well field and CW6. The RAOs of the ROD for OU1 (Interim ROD) include: 1) protection from long-term exposure to
low levels of TCE from ingestion of drinking water and 2) protection from future increased levels of contaminants to
the west well field.

The RAOs of the ROD for OU2 (Final ROD) are to address the remaining concerns at the Site following
implementation of the Interim Action and include: 1) elimination of the continued sources of groundwater
contamination identified as the former City landfill/ Marathon Electric property and the Wausau Chemical property and

14

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the remedy. The 1991 CD requires that Notices of the CD6 be filed in the chain of title with the
Office of the Register of Deeds, Marathon County. Such notices must be filed for each parcel of the
Site owned by the PRPs, including parcels owned by the Wausau Water and Sewerage Utilities
where physical components of the remedial action will be or are located and those parcels where
source areas of contamination are located. In general, these areas include the parcels of land owned
by the City of Wausau and Marathon Electric Manufacturing Corporation. These areas include the
following: (1) the parcels where the former City/ Marathon Electric Landfill was located; (2) the
land which comprises the Wausau Chemical Corp. property; (3), the land upon which the interim
OU extraction well described in the Interim ROD and RD/RA Work Plan is located and (4) the
parcels upon which the City Wells (i.e., CW3 and CW6) are located. The CD states that any deed,
title or other instrument of conveyance regarding a parcel of the facility described above shall
contain a notice that the parcel is the subject of this CD, setting forth the specific information such
as the name of the case, case number, the court having jurisdiction, the address of the Clerk of the
Court for the court having jurisdiction herein and a notation that a copy of the CD may be obtained
by contacting the Clerk of the Court or the City Clerk, City Hall, Wausau, Wisconsin.

EPA could not find evidence that the notices required by the CD had been filed by the PRPs in the
past. However, this was recently done when the property was transferred to the City of Wausau.

Deed Restrictions (Proprietary Controls7):

As part of the closure process, WDNR required the deed restrictions be put in place on two parcels8
at Wausau Chemical facility as a condition by WDNR to close out the source/soil remediation
phase of the project on the East Bank of the river. Several deed restrictions titled Declaration of
Restriction were recorded for the Wausau Chemical Company property in 2007 and 2008 once the
SYE system was removed. In December 2019, title to Wausau Chemical was transferred to the City
of Wausau.

WDNR also required the deed restrictions be put in place on the Marathon Electric facility property
as a condition for WDNR to close out the source/soil remediation phase of the project on the West
Bank of the river. That deed restriction does not appear to be in-place yet.

Additional IC evaluation activities are needed to ensure effective ICs have been implemented.
A review of all the IC instruments and title work is currently underway by EPA and WDNR to
ensure there are appropriate land and water restrictions and that the restrictions can be enforced by
EPA and WDNR. It is estimated that the IC review will be done by the end of 2020.

Also, deed restrictions were required for the source/soil remediation area on the west side of the
Wisconsin River, in accordance with the SYE closure documents. These deed restrictions are also
under review by EPA and WDNR.

2) prevention of exposure to contaminants present in the two additional groundwater contaminant plumes identified.

6 The CD also states that those areas of the Facility where notices shall be filed may be freely alienated, provided that
the U.S. and the State receive notice of such alienation and a copy of the CD is given to the grantee.

7 Controls on land use or activities that are considered private in nature because they tend to affect a single parcel of property
and are established by private agreement typically between the property owner and a second party who, in turn, can enforce
the controls.

8 Sometime after that date, it appears that the two parcels may have been combined into one parcel.

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Wisconsin ICs Public Registry and Continuing Obligations: Informational Devices9

The Site has been included on the WDNR's Remediation and Redevelopment Program's internet
accessible Geographic Information System (GIS) Registry, to provide notice of residual contamination
and of any continuing obligations in accordance with s. NR 812.09(4) (w), Wis. Adm. Code.

The GIS Registry is also known as the Bureau for Remediation and Redevelopment Tracking System
(BRRTS on the Web) at http://dnr.wi.gov/topic/Brownfields/clean.html. The purpose is to provide
public notice of residual contamination and of any continuing obligations. Sites can also be viewed on
the Remediation and Redevelopment Sites Map (RRSM), a map view, under the GIS Registry layer, at
the same web address. A copy of that notice is included in Appendix F.

Ordinance & Continuing Obligations: Governmental Controls10

The existing Wausau Municipal Code contains a Wellhead Protection ordinance in Chapter 23.54,
adopted by the City in Appendix G and also includes a provision to regulate Private Water Wells
in Chapter 19.30. Under Wausau's City Code, the City has authority to deny site plan applications
that include groundwater wells. The City also has the authority to regulate installation of
groundwater wells and to require abandonment of existing groundwater wells.

The Wausau Chemical and Marathon Electric properties are also zoned for industrial purposes by
the City of Wausau. This zoning dictates the acceptable land use for both these properties and is a
type of governmental IC.

WDNR has authority to impose requirements, limitations or conditions and enforce those conditions
under Wisconsin Statutes s. 292.12(3) via a letter that specifies the site-specific conditions. These
requirements are also continuing obligations, which are legal requirements that apply to a property even
after the ownership changes. When WDNR approves a cleanup with residual contamination, it ensures
long-term protection of public health and the environment. WDNR does this by establishing continuing
obligations in the approval letter, which is the state's cleanup approval document. Because WDNR does
not require removal of all contamination, it is common for approved cleanups to have continuing
obligations. Site specific continuing obligations are planned for the Wausau Chemical and Marathon
Electric Sites.

Current Compliance:

Based on inspections and interviews, EPA is not aware of current Site or media uses that are
inconsistent with the stated objectives required by the existing or planned ICs. The existing deed
restrictions also appear to be currently functioning as intended. However, in the past, a deed
restriction was violated when the Wausau Chemical property was modified without proper
approval. This was discussed with the PRPs, and the property uses are now inspected periodically
to ensure no other issues will arise. However, the Wausau Chemical Site was sold to the City of
Wausau, and it is currently not in use. Thus, this is no longer a concern. Even though ICs have not

9 Informational Devices - IC instruments that provide information or notification that residual contamination could remain on
site. Common examples include state registries of contaminated properties, notices in deeds, and advisories.

10 Governmental Controls - Controls using the regulatory authority of a government entity to impose restrictions on citizens
or sites under its jurisdiction. Generally, EPA turns to state, local, or tribal governments to enforce existing controls of this
type and to establish new controls.

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been implemented on the former Wausau landfill, EPA has not noted any uses during the recent
inspection or through other reviews which would result in disturbances to that area. However,
based on current site conditions, EPA has determined that additional ICs are necessary to ensure the
protectiveness of the remedy, such as imposing continuing obligations by WDNR and
implementing additional deed restrictions. These additional ICs are set forth below.

Long-Term Stewardship:

Long-term protectiveness at the Site requires compliance with land and groundwater use
restrictions to ensure the remedy continues to function as intended. Long-term stewardship (LTS)
helps ensure effective ICs are maintained, monitored and enforced and that the remedy continues
to function as intended with regard to the ICs. LTS involves ensuring effective procedures are in
place to properly maintain and monitor the Site. An LTS Plan will be developed in an
Institutional Controls Implementation and Assurance Plan (ICIAP) (or in an update to the O&M
Plan) that includes procedures to ensure long-term ICs stewardship, such as regular inspection of
ICs at the Site and certification to EPA that the ICs are in place and effective. Additionally, EPA
will explore use of a communications plan along with an update to WDNR's continuing
obligations for LTS.

ICs Follow-up Actions:

Initial IC evaluation activities have revealed that additional steps must be taken to evaluate the
effectiveness of the existing ICs and determine whether additional ICs are required. EPA and
WDNR requested an IC study and work plan from the PRPs. The PRPs submitted a draft IC study
in March 2015 and have resubmitted it several other times to incorporate comments given by EPA.
To ensure that effective ICs are implemented, monitored, maintained and enforced, EPA and
WDNR must complete reviewing the IC study along with additional IC evaluation activities to
ensure effectiveness of the existing ICs and LTS of the Site, including: (1) preparing and recording
restrictive covenants consistent with Wisconsin law; (2) amending the decision documents to
clarify the role of ICs and identify ICs that are needed at the Site as part of the remedy; (3) ensuring
detailed maps are available; (4) preparing an LTS plan (by amending the O&M plan or preparing
an ICIAP); and (5) examining title work to determine if any inconsistencies can be identified, all
ICs are in-place and the recent submission fulfills the notice required in the chain of title in
accordance with the CD.

Systems Operations/Operation & Maintenance

Since the last FYR, the required O&M and periodic groundwater sampling required by the CD have
been completed and reported in the AMRs submitted for the years 2015-2019. The PRPs submitted
the 2019 AMR in January 2020, and it contains several recommendations that are under review by
EPA. The recommendations reiterate the requests to permanently shut off EW1 in accordance with
the pilot study11 and modify the monitoring program. In February 2020, the following O&M
activities took place: (1) inspections of the City's production wells and groundwater monitoring wells
and (2) the annual inspection of the paved surfaces near the East Bank source area.

The City of Wausau has operated its Production Wells throughout the time periods covered by this
review. Drinking water is monitored at the City of Wausau Water Utility to ensure that the air

11 A groundwater sample was collected from EW1 during the annual monitoring event and no VOCs were detected.

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strippers are efficiently removing the YOCs and that the water meets the performance standards.
The City officials conduct tests of the treated water as it leaves the plant after the wells have been
run for a few hours. The test results can be found on the WDNR website at:

https://dnr.wi.gov/dwsviewer/ (enter Wausau Waterworks for the name under public water works).

The Wausau production well pumping rates are described in each AMR. Although significant
reductions in groundwater contamination are evident at the Site (discussed in Data Review), it is
expected that the extraction well will need to operate for the foreseeable future. In addition, the
City of Wausau's treatment plant will need to continue to operate both air strippers for at least
several more years. The City of Wausau requested EPA and WDNR's permission to move the
treatment plant and cease operation of the air stripper for the CW3 well. This request is under
review by EPA and WDNR.

In June 2000, the Groundwater Monitoring Plan replaced the 199312 Monitoring Program Plan as the
approved groundwater monitoring program. The Groundwater Monitoring Plan consists of annual
sampling of monitoring wells and quarterly sampling of EW113 (prior to it ceasing operation in July
2012). Since the 2015 FYR, several modifications were made to the monitoring program, including a
reduction in the frequency and number of wells to be sampled. Currently groundwater is sampled
annually and analyzed for the site-specific VOC list (see Table 7 in Appendix L) using EPA Method
8260B. A summary of the groundwater sampling event procedures, including field parameter
measurements, is documented in each of the approved Groundwater Monitoring Plan and the AMRs.

All Site monitoring wells are inspected each year. Inspection forms are used to document the well
condition. Also, at least once every five years, the PRPs conduct a well survey to determine if any
new wells exist in the site area and inspect the asphalt parking lot covering the old landfill on
Wausau Chemical in accordance with the Maintenance Plan required by WDNR during the closure.

O&M Cost Estimates

O&M Cost estimates for the last five years can be found in Appendix J.

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/Stai

tements from the 2015 FYR

OU#

Protectiveness
Determination

Protectiveness Statement

OU l/OU2/Sitewide

Protectiveness Deferred

A protectiveness determination of the remedy for the
Wausau Groundwater Site cannot be made at this time
until further information is obtained. The current FYR
defers any determination about whether the remedial

12 From 1993 through 2000, groundwater monitoring was conducted in accordance with the Monitoring Program Plan, which
required a complex system of monthly, quarterly, semiannual and annual monitoring (CRA, 1994).

13 The EW1 groundwater extraction well on the Marathon Electric property operated at approximately 800 gpm
until July 2012, when it could no longer function after numerous attempts to rehabilitate it. EPA and WDNR
approved a pilot study to determine if an extraction well is still necessary in the southern end of the west plume for
contaimnent of the plume.

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action at the Wausau Groundwater Site is protective of
human health and the environment in the short-term until
EPA has investigated the existence of any VI pathways
that could result in unacceptable health risks. Although,
the remedy is functioning in accordance with the RODs,
available data are insufficient to determine whether there
is a potential or actual VI exposure pathway; additional
evaluations are necessary. It is expected that this action
will take approximately 1 year to complete, at which
time a protectiveness determination will be made.
Furthermore, long-term protectiveness at the Site
requires follow-up actions, including revisions of the
decision documents to clarify the remedy;
implementation of effective ICs; preparation of a LTS
plan; and updating the O&M plan.	

Table 4: Status of Recommendations from t

he 2015 FYR

OU#

Issue

Recommendations

Current
Status

Current Implementation
Status Description

Completion

Date (if
applicable)

1/2/
Sitewide

Potential vapor
intrusion pathway
requires
assessment.

Complete a vapor
intrusion
assessment.

Ongoing

The VI Evaluation is on-going.

Both commercial and
residential land uses have been
assessed based on an approved
work plan. However, more
work needs to be done.

NA

1/2/
Sitewide

Effective ICs must
be implemented.

EPA/State
complete ICs
evaluation; PRPs
implement any
additional ICs
needed.

Ongoing

Additional ICs have been
implemented. Once the IC
evaluation is completed then
consideration will be given to
implementing additional ICs.

NA

1/2/
Sitewide

O&M Plan must
be updated, and

monitoring,
maintenance, and
enforcement of
ICs is required.

A LTS Plan must
be developed and
implemented. The
O&M plan must be
updated.

Under
Discussion

While some modifications have
been adopted, discussions are

underway regarding the
development of a formal LTS
Plan.

NA

1/2/
Sitewide

Remedy decision
documents are not
clear regarding
several matters.

The decision
documents do not
specifically state

whether the
cleanup standards

will allow for
UU/UE, whether
ICs are required to
ensure long-term
protectiveness,

Modify remedy
decision documents
to address these
issues.

Under
Discussion

Discussions are underway.

Once all the on-going
investigations are completed,
the necessary modifications to
the remedy will be determined
and a decision document will
be completed.

NA

19

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and when remedy
modifications are
acceptable.

IV. FIVE-YEAR REVIEW PROCESS

Community Notification, Involvement & Site Interviews

A public notice was made available by newspaper posting in the Wausau Daily Herald (see Appendix E)
on 6/28/2019, and it stated that EPA was conducting a FYR and invited the public to submit any
comments to EPA. Although EPA received no comments in response to the newspaper notice, EPA has
received inquiries over the past few years requesting information from the property owners and the City
about potential development of portions of the Site. The results of the review and the report will be
made available at the Site information repository located at the Marathon County Public Library, 300 N.
First St. Wausau and at the following website: www.epa.gov/superfund/wausau-groundwater.

Data Review

Groundwater remediation at the Wausau Site has been ongoing for over 25 years. Over the years,
the concentrations of contaminants in groundwater have been reduced significantly. The aquifer has
been monitored on a regular basis, in accordance with approved plans, and shows a downward
trend of VOC concentrations. Because of the time necessary to achieve groundwater clean-up
goals, containment of contaminated groundwater is the primary measurable and achievable short
term objective, but the long-term objective is to achieve full capture of the contaminant plume as
well as decrease contaminant concentrations.

The air strippers operated by the City of Wausau for CW3 and CW6 continue to treat water in
the deep aquifer on both the east and west side of the Wisconsin River. VOC contamination in
groundwater above cleanup standards is still evident at the intakes for both CW3 and CW6, but
these levels are significantly lower than the levels in previous years. EPA expects that
municipal wells CW3 and CW6 will need to continue to operate as extraction wells for the
foreseeable future. Groundwater monitoring at the Site is a combination of hydraulic and water
quality monitoring designed to verify that the groundwater extraction wells are containing the
contaminant plume and that groundwater quality is improving. The Groundwater Monitoring Plan
requires that the PRPs submit an AMR for the activities occurring the previous calendar year. EPA
reviewed the AMRs from 2015-2019 for this FYR. A discussion of the groundwater monitoring data
follows.

For the purpose of evaluating the effectiveness of the remedy, groundwater monitoring at Wausau has
been divided into two areas: the East Bank and the West Bank of the Wisconsin River, which
correspond to the two original source areas. The river forms a natural hydraulic division of the Site.
During 2019, two groundwater extraction wells were operated to remove VOC contaminated
groundwater. One extraction well is located on the West Bank, (CW6), and one is located on the East
Bank (CW3) (see Figure 1.2). A third extraction well (EW1) has been off-line for several years,14 after it
became inoperable due to its deteriorating condition. As discussed earlier in the Status of
Implementation section, EPA and WDNR agreed to allow a pilot study to take place to determine if the

14 During the 2015 FYR, EPA found that no immediate public threat was caused by the shut-down of EW1; however, a study
was required to determine if EW1 was required to ensure long-term protectiveness.

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well was needed for containment of the plume. This well has been off-line since 2012. Although the
plume configuration has changed, capture of the plume in that area has not been affected.

Below is information on the contaminant trends and plume capture by the extraction wells for the entire
Site from 2015 through 2019, as well as the results of the Pilot Study that evaluated the effects of the
shutdown of EW1. The analytical results for each monitoring period can be found in the corresponding
AMR and the Pilot Study Report (2019). Also summarized below is information about the on-going VI
studies.

2015 through 2019 Groundwater Data Summary

West Bank Groundwater Monitoring Results and Trends

The West Bank Remediation program initially consisted of two extraction wells (EW115 and City Well-
CW6). It now consists of only City Well CW6 to capture the contaminant plume which is then pumped
through the air strippers and the City's municipal treatment plant. The other West Bank MW locations
are: R2D, R3D, R4D, C2S, C4S, W52, W53A, W54, W55, W56, WSWD and MW1A. These wells,
along with the extraction wells, are sampled annually for the site-specific list of VOCs (see Table 7 in
Appendix L). The groundwater monitoring was conducted each fall from 2015 through 2019. Additional
groundwater sampling was also conducted for the EW1 Shutdown Pilot Study and the VI Study.

In addition, water level elevations are generally collected annually at the following locations: C3S, C4S,
C6S, C7S, GM2S, GM4D, MW1A, MW3A, MW4A, MW7, RID, R2D, R3D, R4D, W52, W53A, W54,
W55, W56, W57, WSWD, CW9-OBS, City Wells CW6, CW9, CW10 and CW11 (if pumping).
Groundwater contours from depth to water measurements collected during 2013-2019 are presented
in Figure 2 (A-G) in Appendix K.

West Bank Source Area MWs

Graphs showing total chlorinated VOC (CVOC) concentrations over time for certain wells are presented
in Figure 4.1 (see Appendix K). Graphs for wells near one of the source areas by Marathon Electric
(i.e., W53A, W54, and WSWD) show that increased concentrations occurred at most source area MWs
for approximately one year after EW1 stopped operating (July 2012). Since then, source area VOC
concentrations decreased to concentrations closer to pre-shut-down levels. However, the exception is
W53A where concentrations increased for about 18 months after EW1 shut-down, then decreased to
pre-shut-down levels over the next 18 months before increasing again from 2015 to October 2017.
The changes in the source area VOC concentrations may be attributed to a combination of several
factors, including: changes in the groundwater flow direction; decreased groundwater flux through the
source area due to a shallower flow gradient after EW1 shut-down; a higher water table elevation
causing the groundwater to contact source material previously above the water table and variations in
the amount of precipitation affecting the amount of leachate created. This will continue to be monitored.

West Bank Downgradient MWs

Based on the 2019 monitoring event, the primary CVOC found in the West Bank groundwater
continues to be TCE. See Table 4.1 in Appendix L. In 2019, TCE was detected in 11 of the 13 West
Bank monitoring wells and in City well CW6. Monitoring wells with TCE concentrations greater than
the MCL of 5 |ig/L included R2D, R4D, W52, W53A, W54, W55 and WSWD. Wells W53A, W54

15 However, EW1 was inoperable as an extraction well during the FYR review period of 2015-2019 which is discussed
further below regarding the EW1 pilot study.

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and WSWD are located on or adjacent to the former landfill on Marathon Electric property (see
Figure 1.5 in Appendix K depicting wells locations). R2D, R4D and W55 are located downgradient
from Marathon Electric, in the direction of groundwater flow toward CW6. The TCE concentration at
CW6 (2.4 |ig/L) was the same as the 2018 concentration and was below the MCL.

TCE degradation product, cl2DCE, was detected at six locations; however, none of the cl2DCE West
Bank concentrations exceeded the cleanup standard of 70 |ig/L. Neither PCE nor VC were detected in
West Bank well samples.

VOC concentrations in the MWs between the source area and CW6 would be expected to increase
slightly since EW1 is no longer capturing all of the groundwater near the source area. Review of the
graphs for these wells (See Figure 4; Appendix K- W52, R2D, C2S, W55) indicates that concentrations
are generally higher, but not significantly so. More recent concentrations for R2D, R3D and W55
suggest that the plume remnant, which was in the stagnation area near R3D, is migrating north toward
CW6, as expected. Well R2D is a well screened in the deep aquifer approximately 150 feet north of
Marathon property. The decreasing TCE concentrations at this location indicate that the plume remnant
(see Table 4 below) that was in a stagnation zone between EW1 and CW6 continues to migrate north to
CW6 since EW1 stopped pumping.

Typically, TCE is the only VOC detected at City well CW6. Concentrations at CW6 remain low and
have not exceeded the MCL for TCE since 2009 (see graph in Figure 4, Appendix K). VOC
concentrations at CW3 on the East Bank have been below the MCL since 2008. Thus, the influent
concentrations for both remediation wells, CW3 and CW6, are below the drinking water criteria prior to
the air stripping, blending and clarifying performed by the City's treatment plant. None of the reported
results for the annual sampling indicate a significant change in the West Bank contaminant plume.
The results for the two additional wells related to the shutdown of EW1 were "non-detect". The contours
show that the West Bank contaminant plume is within the groundwater containment areas created by the
pumping of CW3 and CW6.

North of EW1, the West Bank plume continues to remain in the deeper portion of the aquifer. In 2019,
two wells sampled in the north portion of the West Bank plume exceeded the MCL for TCE. W55 had a
TCE concentration of 7.7 |ig/L, and the TCE concentration at R2D was 10 |ig/L. R2D is a deep aquifer
well approximately 150 feet north of the Marathon property. The cleanup standard, or MCL, is 5 ug/L.
Historically, while EW1 was pumping, there has been a remnant plume area of higher TCE
concentrations in the vicinity of monitoring wells R2D and R3D. Recent decreasing TCE concentrations
at that location indicate that the plume remnant that was in a stagnation zone between EW1 and CW6
continues to migrate north to CW6 since EW1 stopped pumping. This is supported by the generally
increasing concentrations at W55 since 2012 (see W55 trend graph in Figure 3D in Appendix K).

The shut-down of EW1 eliminated the groundwater flow divide between CW6 and EW1, which has
resulted in a more effective reduction of VOC concentrations in the R2D/R3D area. The increased
concentration at R4D in 2019 may be due to increased infiltration of precipitation in the source area
from increased rainfall.16

A portion of the impacted groundwater from the old landfill source area that previously was captured
by EW1 is migrating north to CW6 and the West Well Field. However, this is not a health concern

16 2019 was the wettest year on record in Wausau since 1938, with over 48.1 inches of precipitation, compared to an
average of approximately 33.3 inches per year from 1991 through 2018.

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because the residual concentrations are low, the water going to the municipal supply wells is treated
with air stripping and the influent concentrations of VOCs of water going to the municipal treatment
plant are almost non-detect and that is not expected to change. Furthermore, the monitoring programs
for the Site remain in place and would detect any changes to this information.

In the southern portion of the plume near the old landfill, CVOCs are more prevalent in the shallow
portion of the aquifer. Several monitoring wells south of EW1 exceeded the MCL for TCE near the old
landfill source area. TCE concentrations in this area have fluctuated between 5 |ig/L to 40 |ig/L over the
last 20 years. Since 2011, concentrations have increased and range between 54 |ig/L to 88 |ig/L.

This corresponds with the shutdown of EW1 and is likely due to a reduced gradient and groundwater
flow velocity in the vicinity of the well. Thus, the increased concentrations observed since 2011 are not
likely due to changes within the source area, such as a new source point within the landfill but from less
groundwater flux through the area. Figure 4 in Appendix K depicts total CVOCs detected historically.
Further, historical and current data for several key wells, R2D, R3D and R4D, are shown below in
Table 4 below.

Table 4- West Bank Historical Total Chlorinated VOCs (ng/L)

Year

R4D

R3D

R2D

1996

540

2.0

1600

1997

5.0

720

1998

580

320

1999

1200

110

2000

1800

2001

1500

2002

1200

2003

980

2004

899

2005

56.5

400

7.5

2006

490

8.2

2007

1.3

280

9.9

2008

180

6.5

2009

22.9

7.3

2010

25.7

195.7

6.2

2011

27.6

203.1

2012

4.9

20.7

6.4

2013

16.6

4.8

March 2014

73.7

18.2

May 2014

7.89

4.7

19.1

August 2014

2.9

33.2

November 2014

1.8

2.6

47.2

2015

3.27

1.8

33.6

2016

5.97

2.0

22.9

2017

2.24

2.2

16.7

2018

0.68

2.1

15.9

2019

1.1

12.4

Although total CVOCs are shown here, TCE comprises 90 to 100 percent of the concentrations listed.
The remaining portion is C12DCE. Review of these data indicates plume migration to the south during
the 1990s and 2000s, from the R2D area to the R3D area, as groundwater moved toward EW1. When

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EW1 stopped pumping in 2012, VOC concentrations increased at R2D as the aquifer flow direction
changed back to the north and toward CW-6. The shut-down of EW1 eliminated the groundwater flow
divide between CW-6 and EW1, which has resulted in a more effective reduction of VOC
concentrations in the R2D/R3D area17. In general, the 2019 data indicate that there is a continued
decline of VOC concentrations in the aquifer. Specifically, concentrations have decreased at R2D and
R3D. However, concentrations have slightly increased at R4D on the West Bank of the Wisconsin
River. The increased concentration at R4D in 2019 may be due to increased infiltration of precipitation
in the old landfill (one of the known source areas) due to increased rainfall. However, the increase at
well R4D does not impact the protectiveness of the remedy.

VOC concentrations in monitoring wells south of EW1 and adjacent to the old landfill, which is the
principal West Bank source area, are more prevalent in the shallower portion of the aquifer. Monitoring
wells south of EW1 that exceeded the MCL for TCE included W53A, W54 and WSWD. TCE
concentrations at W53A and W54 have exhibited substantial fluctuations since the shutdown of EW1 in
2012. These fluctuations are typical of source area wells where increased precipitation and water level
changes could have a local effect on VOC concentrations in the groundwater.

The overall areal extent of the West Bank contaminant plume has changed slightly since EW1 was shut-
down and caused the plume to migrate to the East. TCE and C12DCE were the primary VOCs detected
downgradient from the old landfill on the West Bank. Figures 4 & 5 in Appendix K present TCE and
C12DCE concentrations based on monitoring performed in the fall of 2019. The contour lines on the
figures show the approximate areas of concentrations exceeding the MCL.

Summary of Effects of EW1 Shutdown, Pilot Study Summary and Plume Containment

EW1 was installed in 1990 to contain and remove the high VOC concentrations near the West Bank
source area within the West Well Field. Concentrations were reduced from thousands of parts per billion
to tens of ppb, or less. By 2006, VOC concentrations at EW1 had become asymptotic with total CVOC
concentrations less than 10 |ig/L (see the EW1 chart in Figure 7 in Appendix J). However, operation of
EW1 had continued because VOC concentrations at certain MWs in or near the source area continued to
exceed the cleanup standards.

The well became inoperable in 2011. After attempts were made to rehabilitate the EW1, the PRPs
requested permission to take EW1 permanently off-line. EPA approved a pilot test to determine if the
extraction well was still needed. In 2012, EPA and WDNR approved a pilot study to determine if
an extraction well (i.e., EW 1) is still necessary in the southern end of the West Bank plume.
The Pilot Study was designed to provide data to detect or confirm aquifer conditions in six principal
areas, including continued plume containment; continued supply of safe water; facilitation of
remediation of the stagnation zone (between EW1 and CW6); continued remediation of the groundwater
near the EW 1 area and no impact to the East Bank plume. The most critical data relative to the
permanent shutdown of EW1 is that the City's remediation wells continue to contain and remove the
remaining contaminants in the groundwater. The monitoring was conducted in accordance with the

During the last FYR, in general, that data indicated continued decline of VOC concentrations at R3D and increased
concentrations at R2D on the West Bank. This suggests that the remnant of higher concentrations was moving north to
CW6.

-------
approved schedule presented in the EW1 Shutdown Pilot Study Work Plan. The Pilot Study Work
Plan was approved in 2014 and has been underway since then.

The first EW1 Shutdown Pilot Study Report was submitted in 2015, and it contained information from
the Pilot study and data collected through the fall of 2014. After that, EPA requested the pilot study to
be extended. To that end, the PRPs agreed to and collected additional data beyond 2015. Since then,
multiple rounds of groundwater monitoring were conducted in the fall of each year from permanent
MWs, and shallow aquifer samples were collected from seven temporary wells in the spring of 2017.
Although concentrations in source area wells continue to fluctuate, downgradient concentrations and the
size and shape of the West Bank contaminant plume are stable. All impacted groundwater is contained
and captured by the two City of Wausau remediation wells, CW3 and CW6.

The PRPs provided several reports to EPA and WDNR regarding the Pilot Study, including a
report in March of 2015, an addendum in 2018 and a final report in 2019. Based on the
conclusions presented in the Pilot Study report, data was provided to support the request to
permanently shut down EW1. That report is under review by EPA and WDNR. It currently
appears that Well EW1 is no longer needed. Review of these data from the inception of the
pilot study indicates that concentration trends of YOCs have changed near the West Bank
source area, but all impacted groundwater is contained and captured by the two City of
Wausau remediation wells, CW3 and CW6. However, the final determination will be made by
EPA and WDNR after the review of the report is completed. It is anticipated that a decision
will be made by the end of 2020.

In addition, groundwater samples were collected from temporary wells during the VI evaluation on the
East Bank and West Bank. The Site Plan, Figure 1.2 (Appendix K), shows the locations of all Site MWs.

Water level data collected since EW1 was shut down in mid-2012, indicate that the VOC plumes on
both sides of the river are contained by the pumping of the City water supply/remediation wells CW6
and CW3. The five quarters of water level data collected during the pilot study and the annual
monitoring conducted in 2015, 2016 and 2017, confirm that the capture zones created by the City's
wells are consistent and effective at containment and removal of the contaminant plumes.

Groundwater contour figures for each quarter during the pilot study, plus fall 2015 and 2016 contours,
are provided in Figures 2 (see Appendix K).

The following important conclusions have been made from the Pilot Study Reports:

• Through a combination of more than 25 years of groundwater remediation, source area
remediation, ICs and continued hydraulic control and treatment of the remaining plume by CW6
and CW3, the shutdown of EW1 does not appear to create additional exposure risk to human
health or the environment.

• The potential for higher VOCs to migrate from west side source areas to the West Well Field
has been eliminated by more than 20 years of EW1 operation and SVE remediation of the former
municipal landfill.

• EW1 has accomplished its performance goal, which was to prevent the migration of high
concentrations of VOCs in the source area groundwater to the West Well Field. Given that the
current groundwater VOCs near the former source area are much lower and that EW 1 lies within

-------
the capture area of the City's two remediation wells, continued operation of EW1 is not critical
relative to the protection of potential groundwater receptors.

• City Treatment Plant sample results do not indicate potential impact due to contaminated
groundwater. VOCs in the CW3 and CW6 influent samples are below drinking water standards.
The west side plume is captured by CW6 and CW3. CW6 creates a hydraulic barrier to protect
the other West Well Field supply wells.

• ICs maintained by the City of Wausau restrict the installation of private wells and can require
abandonment of existing wells, although well surveys indicate that there are no private wells
near the Site.

Based on the above factors, the PRPs recommended that continued use of EW1 is no longer necessary
and permanent shut down of EW1 has been requested. EPA will be making a final decision about this in
the coming months; however, it appears that the plume capture does not require EW1 to operate.
Additionally, stopping the pumping at EW 1 has allowed the groundwater stagnation zone to be captured
by the remediation system.

East Bank Groundwater Monitoring Results and Trends

The East Bank Remediation program consisted of one extraction well (City Well - CW3) that captures
the contaminant plume, which is then pumped through the air strippers and to the City's municipal
treatment plant. This well is monitored annually. The other East Bank MW locations are E21, E22A,
E37A, E24AR, MW10B, WW4, WW6, WC3B and WC5A. (See Figure 1 and Figure 1.5 in Appendix
K). These wells are sampled annually for a site-specific list of VOCs (see Table 7 in Appendix L). In
addition, water level elevations are generally collected annually at the following locations: E21, E22A,
E24AR, E26A, E28A, E37A, FVD5, GM6D, W.HURD, MW10B, WC3B, WC4A, WC5A, WC7,
WW4, WW6 and CW3. The groundwater monitoring was conducted in the fall of 2015-2019.

Additional groundwater sampling was also conducted for the EW1 Shutdown Pilot Study and the VI
Study.

East Bank VOC data for 2019 can be found in See Table 4.1 in Appendix L .While PCE was the original
contaminant on the East Bank, the presence of TCE, C12DCE, and VC at concentrations exceeding the
PCE concentration in many wells in more recent years indicates an active natural biodegradation
process. For example, at WW6, the C12DCE concentration was higher than the PCE and TCE
concentrations.

Total CVOC concentrations from 2012 through 2019 for key East Bank wells are shown in Table 5
below:

Table 5-East Bank Total Chlorinated VOCs (Hg/L)

Well

1 2012 I

I 2013 I

I 2014 I

I 2015 I

I 2016

I 2017 I

I 2018 I

I 2019 I

WC3B

3.47

0.26

6.31

2.86

0.55

13.4

71.4

480

WC5A

1.3

7.3

14.93

12.04

26.1

118.2

131.7

1.11

E24AR

3.86

222.5

136.8

152.1

78.05

6.73

5.18

E22A

25.41

104.9

12.5

8.03

123

21.85

10.22

1.6

E37A

68.06

4.67

3.73

1.61

1.75

3.4

23.41

1.62

WW6

45.48

45.8

51.9

67.6

8.03

8.54

37.6

29.4

CW-3

3.58

2.62

3.03

3.15

3.0

2.83

2.75

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Individual VOC concentrations for the shallow wells are presented for PCE, TCE, C12DCE and VC in
Figures 4.1 (A-P) (see Appendix K).

In 2019, PCE or one of its daughter products was detected at 7 of the 10 East Bank monitoring wells.
Two monitoring wells (WC3B and WW6) had concentrations that exceeded the MCL for at least one
VOC. In addition, the VC concentration at E24AR was below the MCL but exceeded the Wisconsin ES
of 0.2 |ig/L.East Bank contaminant concentrations continue to fluctuate, with increased concentrations
in wells at or near the source, lower concentrations in mid-plume wells and increased concentrations
farther downgradient at WW6 (see Figure 4 in Appendix K).

Groundwater Beneath the Wisconsin River:

The island wells have not been sampled since 2015 because of consideration for the safety of those
persons doing the sampling. Low concentrations of TCE and C12DCE were detected at the island well
(IWD) within the river when last sampled in 2015. These detections were then considered remnants of
the West Bank plume that had historically migrated beneath the river to CW3.When last sampled in
201518, no VOCs were detected in the E21, which is consistent with previous results and indicates that
the West Bank plume did not extend all the way across the river. Also, information from that MW is not
considered to be vital to prove the remedy is still effective. The PRPs have asked to abandon the MWs
in the island, and EPA is reviewing this request.

Hydraulic Capture of Plumes Continues:

Hydraulic capture of the site contaminant plumes is demonstrated by the water table contours illustrated
on Figure 2.1 in Appendix L. At nested well locations, the water table elevations for shallow and deep
wells were similar, indicating hydraulic containment of the shallow and deeper portions of the aquifer.

Groundwater elevation data is measured annually. Water table contours based on these measurements
are presented on Figure 2.1 in Appendix K. On the East Bank, the water levels were measured while
CW3, the East Bank remediation well, was operating and on the West Bank while CW6, the West Bank
remediation well, was operating.

The East Bank groundwater flow patterns are controlled by the operation of CW3. East Bank
groundwater contours indicate a large cone of influence surrounding CW3 that fully captures the East
Bank contaminant plume. Under natural conditions, groundwater on the East Bank flows in a south-
southwesterly direction towards the Wisconsin River. This flow was observed as recently as the 2017
sampling event when CW3 was not operating because of on-going rehabilitation activities at the time of
hydraulic monitoring.

West Bank contours depict a large cone of influence created by CW6 and CW10. Under natural
conditions, West Bank groundwater would flow generally eastward and discharge to the Wisconsin
River. Under current pumping conditions, however, groundwater flows toward the City supply wells
which are then treated in the municipal treatment plant.

Hydraulic capture of the Site contaminant plumes is demonstrated by the water table contours illustrated

18 Since sampling the well on the island may cause a health and safety issue for the sample collector, sample collection does
not occur frequently.

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on Figure 2.1 (Appendix K). At nested well locations, the water table elevations for shallow and deep
wells were similar, indicating horizontal flow and hydraulic containment of the shallow and deeper
portions of the aquifer.

Vapor Intrusion Evaluations

From March 2017 to the present, the PRPs performed additional field work to supplement existing site
data in an effort to better understand the potential for VI risk in areas adjacent to the known groundwater
plume footprints at the Site. EPA approved a work plan requiring a thorough VI evaluation consisting of
additional monitoring of the following: groundwater, exterior soil gas, sub-slab soil gas and indoor air of
buildings. Once EPA approved the work plan, two sampling rounds were conducted in March and
August of 2017. The PRPs collected sub-slab and indoor air samples at select residential and
commercial/industrial buildings on the West Bank and East Bank. Sub-slab and indoor air samples were
collected in the West Bank areas on two occasions in March and August 2017. East Bank sub-slab and
indoor air sampling has occurred on six occasions from April 2017 through September 2019. Based on
those results, EPA has required that additional sampling be conducted, and planning for that work is
underway.

Further details regarding these activities are described below. These results will be summarized in a final
Vapor Intrusion Report. The draft of this report is currently being reviewed by EPA and WNDR.

East Bank Vapor Probes:

In March 2017, vapor probes were installed at each of the nine East Bank groundwater sampling
locations. For locations where the depth to groundwater was greater than 20 feet, vapor sample
collection was attempted at several depths. There were nine total shallow probes and seven total deep
probes (16 probes total) on the East Bank. Samples were collected using vacuum canisters and were
analyzed by the TO-15 method. East Bank vapor analytes include PCE, TCE, cl2DCE and VC.

In March 2017, 15 of the vapor probes were successfully sampled in the East Bank area. All 15 probes
had detectable VOC concentrations; however, none exceeded their respective residential or small
industrial screening levels. In August 2017, the PRPs collected a second round of soil vapor samples
from the East Bank probes. Several locations were not sampled due to issues with probes. Of the
remaining 12 probes, all had detectable VOC concentrations; however, none exceeded their respective
residential or small industrial screening levels.

East Bank Sub-slab and Indoor Air Sampling and Results:

In March 2017, groundwater samples were collected on the East Bank to further delineate the eastern
extent of the groundwater plume. Temporary wells were installed at nine locations. Samples from these
wells were analyzed for PCE, TCE, cl2DCE and VC. While groundwater samples from temporary wells
had VOC detections, only 2 temporary wells had VOC concentrations that exceeded the VI screening
level for groundwater, and these exceedances were slight. The East Bank groundwater delineation
sampling results indicated that the eastern limit of the VOC plume was between N 2nd Street and
N. 3rd Street and the southern limit was north of Lincoln Avenue (see Figure 2 in Appendix K).

The initial vapor sampling on the East Bank occurred at five residential properties and one commercial
property. Sampling rounds were conducted in April, May and July 2017 and in March 2018. Two to four
samples were collected from the six locations and each sample was analyzed using the TO-15 method
for PCE, TCE, cl2DCE and VC. Based on an additional groundwater result obtained from monitoring

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well WW-6 in the fall of 2017, an additional residential property was added to the March 2018 sampling
round. Subsequent monitoring events included the commercial properties and one additional residential
property. Several properties that EPA targeted to include in the VI investigations have not been sampled
due to access denial by the landowner.

EPA/WDNR sub-slab screening levels are included on Table 6 in Appendix L. The residential
sub-slab screening level for TCE (70 micrograms per cubic meter (|ig/m3)) was exceeded in three of
the 18 samples collected, and each of the three exceedances were from a different location. The highest
sub-slab TCE concentration was 160 |ig/m3. However, three other sub-slab samples from the same
location did not exceed 12 |ig/m3. The screening levels for PCE and VC were not exceeded in any of
the sub-slab samples.

A total of 23 residential indoor air samples were collected from eight homes. The indoor air action levels
were not exceeded in any of the samples except for one basement sample that slightly exceeded the TCE
action level of 2.1 |ig/m3. That result was questionable as an indoor source rather than the VI due to
contaminated groundwater. Two subsequent TCE results for that location were below the screening level
of 0.28 |ig/m3.

West Bank Vapor Probes:

In March 2017, vapor probes were installed at each of the seven West Bank groundwater sampling
locations. For locations where the depth to groundwater was greater than 20 feet, vapor samples were
attempted to be collected at two levels, one just above the water table and the other at 8.5 to 9 ft. below
ground surface (bgs) which is assumed basement depth. At the two locations where the water table was
20 ft. bgs or shallower (W5 and W6), only one sample was collected. These probes were screened from
5.5 to 6 ft. bgs. There were seven total shallow probes and five total deep probes (12 probes total).
Samples were collected using vacuum canisters and were analyzed by the TO-15 method. West Bank
vapor analytes include TCE, cl2DCE, VC, CT and chloroform.

In March 2017, the PRPs collected soil vapor samples from the 12 West Bank probes. All probes had
detectable VOC concentrations; however, none exceeded their respective residential or non-residential
screening levels. In August 2017, the PRPs collected a second round of soil vapor samples from the
12 West Bank probes. One location was not useable. All of the 11 probes sampled had detectable VOC
concentrations; however, none exceeded their respective EPA residential or large industrial screening
levels.

West Bank Groundwater Sub-slab, and Indoor Air Sampling and Results:

Potential VI sources on the West Bank are related to shallow groundwater and soils in the former City
landfill. On March 2017, groundwater samples were collected adjacent to Marathon Electric building
"A" to further delineate the groundwater plume adjacent to and immediately downgradient from the fill
area. Additionally, shallow groundwater samples were collected at select locations north of Marathon
Electric property to confirm that the shallow aquifer is not impacted in that area. A total of seven
temporary wells were installed on the West Bank. Samples from these wells were analyzed for TCE,
cl2DCE, CT, chloroform and VC. Of the groundwater samples collected from the seven temporary
wells on the West Bank, only two samples contained VOCs at detectable concentrations. One of the
groundwater samples collected from the West Bank temporary wells had VI screening level
exceedances.

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The West Bank groundwater delineation sampling results indicated that the VOC plume is primarily
within the deeper portion of the aquifer and VOCs in the shallow portion of the aquifer do not extend far
from the landfill.

Sub-slab vapor and indoor air sampling was conducted at residential and commercial buildings that were
identified as potential VI risks based on their proximity to source areas or elevated groundwater
concentrations. The scope of this evaluation included assessments of residential and
commercial/industrial buildings for occupancy, construction, basements, ventilation and presence of
radon mitigation system. Where access was granted, sub-slab and indoor air locations were sampled at
least twice to confirm the initial results.

Sub-slab and indoor air sampling on the West Bank was limited to Marathon Electric property (also
known as the Regal property). Groundwater results from residential areas hydraulically downgradient
from Marathon Electric revealed that the shallow groundwater is not impacted. Thus, additional VI
evaluation of the West Bank residential area is not needed.

Based on the close proximity of Marathon Electric buildings to the former City landfill, sub-slab
sampling was performed at six total locations in the two buildings closest to the former landfill.

Sub-slab and indoor air sample locations are shown on Figure 4. Two sampling events were performed
in March and August 2017. All samples were collected using vacuum canisters, and laboratory analysis
was performed using the TO-15 method. West Bank vapor analytes included TCE, cl2DCE, CT,
chloroform and VC.

For the West Bank sub-slab samples, the vapor data were compared to sub-slab screening levels and
indoor air action levels for large industrial buildings. The sub-slab TCE concentrations from the two
sampling events exceeded the screening level of 880 |ig/m3. Chloroform and CT were also detected in
some of the sub-slab samples, but all concentrations were below their respective screening levels.

Indoor air samples were collected from one location inside each building. TCE, CT and chloroform were
detected in both sampling events, but all concentrations were far below the indoor air action levels for
large industrial buildings.

Since the indoor air concentrations did not suggest a health risk to Marathon Electric employees, the
PRPs recommended no additional VI evaluation on the West Bank. EPA and WDNR are reviewing this
recommendation.

Groundwater VOC concentrations are expected to continue their long-term decline. However, the PRPs
will continue evaluating groundwater data, and if concentrations increase in the shallow aquifer,
potential additional VI evaluation will be conducted.

Site Inspection

The inspection of the Site was conducted on October 29, 2019. In attendance were Sheri L. Bianchin,
RPM for EPA; Matthew A. Thompson, Project Manager, WDNR; and representatives from the PRPs.
The purpose of the inspection was to assess the protectiveness of the remedy. The inspection indicated
that the no major changes have occurred since 2015. The existing extraction and treatment systems
were observed, and these systems continue to operate to ensure that the contamination in the
groundwater will not expand or impact any receptors. The air strippers at the City of Wausau
municipal utility are well maintained and monitored. The operating systems currently consist
of (1) the extraction wells and subsequent aeration; (2) air stripping treatment systems

-------
operating at the City of Wausau water utility plant; and (3) the groundwater monitoring
systems. The remedy components are maintained and monitored according to the approved
plans.

Adherence to the existing water use restrictions was evidently closely followed. No private wells have
been identified in the area of groundwater contamination, and there are City ordinances that have been
effective in preventing the installation of wells in the areas near the Superfund Site. See Figure 6 in
Appendix K and Appendix G.

The only area of concern noted in the inspection is the old city landfill. The landfill is covered mostly
with asphalt paving materials. It appears that these materials do not successfully prevent the infiltration
of precipitation. The landfill cover must be improved, and the maintenance procedures must be
reviewed.

V. TECHNICAL ASSESSMENT

QUESTION A: Is the remedy functioning as intended by the decision documents?

Yes, the remedy is functioning as intended by the decision documents; however, the decision documents
do not address several current issues at the Site and need to be modified to address these issues.

Question A Summary:

The remedial components included in the 1988 and 1989 RODs have been implemented.
Construction and operation of a groundwater treatment system consisting of extraction of
groundwater from the aquifers to contain the plumes and treatment by air strippers at the
municipal groundwater supply plant are continuing. The SYE systems have been operated and
were dismantled when they were found to be no longer needed. All the work has been
conducted in accordance with approved work plans. The PRPs have confirmed containment of
the contaminant plumes.

Remedial Action Performance

Aquifer remediation is a slow process, but contaminant concentrations have been reduced significantly
at the Site. The aquifer has been monitored at least annually, and the data show a downward trend of
VOC concentrations in groundwater. Because of the time necessary to achieve groundwater remediation,
containment of contaminated groundwater is the primary measurable and achievable short-term
objective. In addition, although it is inspected periodically and maintained, the landfill cover does not
appear to be fully effective in preventing infiltration of precipitation, which may cause more
groundwater contamination. Further, there has been some increase in precipitation during the review
period, especially in 2019. This may have caused groundwater contamination to temporarily
increase at the Wausau Chemical property due to flushing of soils from the old landfill. The landfill
cover is not included as a remedy component in the decision documents, nor is there an RAO for
preventing infiltration of precipitation into the landfill. However, recent remedy performance
information seems to suggest a remedy component addressing the landfill cover needs to be included in
a decision document.

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System Operations/O&M

O&M activities consist of operating and maintaining the City production wells, groundwater
monitoring wells, and the annual inspection of the paved surfaces near the East Bank source
area. The City of Wausau's treatment plant with air strippers regularly operates as an integral
part of the City's municipal groundwater system, and the groundwater treatment system must
be regularly maintained. The Groundwater Monitoring Plan requires an AMR be provided to
EPA and WDNR that contains information on the activities that occurred the previous calendar
year. Since the last FYR, several additional modifications were made to the monitoring
program, including continuation of a pilot study to monitor and study the effects on the
groundwater movement with the shutdown of one of the extraction wells (EW1), and that pilot
study has recently been completed. Through a combination of more than 25 years of groundwater
remediation, source area remediation, ICs and continued hydraulic control and treatment of the
remaining plume by CW6 and CW3, the shut-down of EW1 does not appear to create additional
exposure risk to human health or the environment. Based on the study, the PRPs recommended that
continued use of EW1 is no longer necessary, and permanent shut down of EW1 has been requested.
EPA will be making a final decision about this in the coming months; however, it appears that the plume
capture does not require EW 1 to operate.

Implementation of Institutional Controls and Other Measures

Although not clearly specified in the RODs19, ICs are necessary to ensure long-term protectiveness
of the remedy. The following ICs have already been put into place:

The Wausau Municipal Code outlines a Wellhead Protection ordinance in Chapter 23.5 and
also addresses a Private Water Well ordinance in Chapter 19.30. These controls remain in
place and serve with the City of Wausau to protect the remedy and restrict groundwater use.
The ordinance has been extremely effective in preventing installation of wells within the City.

A property deed restriction was implemented on the Wausau Chemical facility property to
memorialize the completion of the soil remedy on the property. The restriction included a
prohibition of inappropriate uses at the Wausau Chemical property to ensure protection of
human health and the environment and to protect the remedy. EPA is currently reviewing this
instrument. However, given that the City's water treatment plant is adjacent to the property, the
City has a continued presence there and ensures that no trespassing or unexpected uses of the
property occur. Further, the property is fenced, and access is limited.

A public notice has been published on the WDNR website (otherwise known as the BRRTs
/GIS registry). EPA will also be requesting that WDNR, per its regulations, imposes
enforceable site-specific continuing obligations for the property to supplement the existing ICs.
Those continuing obligations may include the requirement that only commercial/industrial uses
of the property are allowed unless additional cleanup activities occur and that VI must be
considered in future development at the Site.

In December 2019, the Wausau Chemical property was sold to the City of Wausau. Title work
from that transaction needs to be reviewed by EPA and WDNR.

-------
Additionally, although EPA has not noted any uses during the recent inspection or through other
avenues that would result in disturbances to that area, ICs are needed for the former landfill at the
Marathon Electric facility and possibly other areas of the Site.

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?

Yes, the exposure assumptions, toxicity data, cleanup levels and RAOs used at the time of the remedy
selection are still valid.

Changes in Standards and TBCs

All standards outlined in the 1988 and 1989 RODs and 1989 and 1991 CDs are still valid at the
Site. None of the ARARs have changed.

Changes in Toxicity and Other Contaminant Characteristics

During the last FYR, the toxicity value for TCE was under review by EPA and the scientific
community. In February 2020, the draft risk evaluation was released for public comments. EPA
will monitor the review and take notice of the outcome of this review. Toxicity and other factors for
contaminants of concern have not changed since the last FYR.

Changes in Risk Assessment Methods
Risk assessment methodologies have not changed since the last FYR and, therefore, do not call into
question the protectiveness of the remedy.

Standardized risk assessment methods have not changed in a way that could affect the
protectiveness of the remedy.

Changes in Exposure Pathways
Current or reasonable anticipated future land use has not changed. However, the Site has been
considered for redevelopment several times since the 2015 FYR. Proposed future uses include
mixed commercial and residential uses. However, all plans are currently on-hold. If there is a
proposed change of use in the future, the parties who are requesting the change of use will need to
work with EPA and WDNR to ensure that the remedy is still protective in light of proposed land
use changes. This may require future work (not publicly funded) and the need to update the RODs.

During the last FYR, it was determined that VI was of concern and required further evaluation.

Pursuant to the WDNR voluntary cleanup initiative, Wausau Chemical Company proposed a focused
site investigation to better understand the residual contamination at the Site, including any VI, and for
possible redevelopment of the Site. That report was submitted in April 2015. In 2015, EPA also required
a formal VI work plan, which was approved in 2017. Since then, VI assessments have occurred, and
additional VI assessments are underway. In summary, it has been determined that VOC vapors have
been detected in sub-slab samples at several locations (both commercial and residential) that exceed
appropriate screening levels. However, no exceedances have been detected in indoor air with one
exception, and that single detection was slightly over the screening level. That may be an anomaly since
the detection was found in a basement where similar chemicals may have been used. Furthermore, the
area where the exceedance was detected has been resampled several times, with no detected indoor air
exceedances.

-------
Expected Progress Towards Meeting RAOs

The remedy performance is progressing as expected, and it is anticipated to continue to do so.
Contaminant levels in groundwater are generally decreasing. Groundwater monitoring is conducted
in accordance with the procedures contained in the approved monitoring plan.

QUESTION C : Has any other information come to light that could call into question the protectiveness
of the remedy?

No. other information has become available that might call into question the remedy for Wausau
Groundwater Site. Furthermore, there are no known direct impacts to the Site from the natural
disasters or vulnerabilities related to climate change.

VI. ISSUES/RECOMMENDATIONS

Issues/Recommendations

()l (s) without Issues/Recommendations Identified in (ho l i\e-Ye:ir Rexiew:

None

Issues and Recommendations Identified in the l"i\e-Year Rexiew:

OU(s):

OU1/OU2/

Sitewide

Issue Category: Remedy Performance

Issue: Potential vapor intrusion pathway requires assessment.

Recommendation: Complete a vapor intrusion assessment.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

Unknown

Yes

PRP

EPA/State

12/31/2021

OU(s):

OU1/OU2/

Sitewide

Issue Category: Institutional Controls

Issue: Effective ICs must be implemented.

Recommendation: EPA/State complete ICs evaluation; PRPs will implement any
additional ICs needed^

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

Yes

PRP

EPA/State

12/31/2021

-------
OU(s):

OU1/OU2/

Sitewide

Issue Category: Institutional Controls

Issue: Effective ICs must be implemented.

Recommendation: EPA/State complete ICs evaluation; WDNRwill implement
continuing obligations. Consideration will be given to instituting other ICs if
needed.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

No

Yes

EPA/State

EPA/State

12/31/2021

OU(s):

OU1/OU2/

Sitewide

Issue Category: Institutional Controls

Issue: O&M Plan must be updated and monitoring, maintenance, and
enforcement of ICs is required.

Recommendation: A LTS Plan must be developed and implemented. The O&M
plan must be updated.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

No

Yes

PRP

EPA/State

12/31/2021

OU(s):

OU1/OU2/

Sitewide

Issue Category: Remedy Performance

Issue: Remedy decision documents are not clear regarding several matters. The
decision documents do not specifically state whether the cleanup standards will
allow for UU/UE, whether ICs are required to ensure long-term protectiveness,
and when remedy modifications are acceptable.

Recommendation: Modify remedy decision documents to address these issues.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

No

Yes

EPA/State

EPA

3/31/2023

35

-------
OU(s):

OU1/OU2/

Sitewide

Issue Category: Remedy Performance

Issue: Several remedy operation modification requests have been submitted for
approval to EPA and WDNR. These include permanently shutting down EW1 and
allowing the shutdown of the air stripper for CW3, which is associated with the
planned move of the municipal water treatment plant.

Recommendation: EPA/WDNRmust review these proposals and either approve
them, request additional information, or deny these requests, and determine if any
formal remedy modifications are needed in the decision documents.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

No

Yes

PRP

EPA/State

3/31/2022

OU(s):
OU1/OU2/

Issue Category: Remedy Performance

Sitewide

Issue: Remedy decision documents are not clear regarding the remedy cover
requirements for the old landfill. The landfill is covered mostly with asphalt
paving materials which do not successfully prevent the infiltration of
precipitation, which may cause more groundwater contamination. The landfill
cover must be improved and placed on a regular maintenance schedule.



Recommendation: EPA/WDNRmust determine what additional measures are
necessary for the old landfill to ensure the remedy is protective in the long-term
and modify the decision documents to include these remedies to ensure
prevention of infiltration of precipitation.

Affect Current
Protectiveness

Affect Future
Protectiveness

Party
Responsible

Oversight Party

Milestone Date

No

Yes

PRP

EPA/State

3/31/2023

VII. PROTECTIVENESS STATEMENT

OU1, OU2 & Sitewide Protectiveness Statement

Protectiveness Determination:	Planned Addendum

Protectiveness Deferred	Completion Date:

3/31/2022

Protectiveness Statement: A protectiveness determination of the remedy for the Wausau Ground Water
Contamination Site cannot be made at this time until further information is obtained. Further information
will be obtained by taking the following action: Complete additional VI assessments. It is expected that

36

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this action will take approximately two years to complete, at which time a protectiveness determination
will be made.

VIII. NEXT REVIEW

The next FYR report for the Wausau Ground Water Contamination Superfund Site is required five years
from the completion date of this review.

37

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Appendix A
Existing Site Information / Chronology

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APPENDIX A - REFERENCE LIST

A. SITE CHRONOLOGY

Table 5: Site Chronology

Event

Date

Initial discovery of problem or contamination

1982

Removal actions

1984

Pre-NPL responses- Treatment system installed by Wisconsin

1985

Proposed NPL listing

1985

Final NPL listing

1986

Remedial Investigation/Feasibility Study initiated

1987

Remedial Investigation/Feasibility Study completed

1989

Interim ROD signature

1988

Final ROD signature

1989

RD/RA CD for Interim ROD

1989

RD/RA CD for Final ROD

1991

Remedial design start

1990

RA Construction completion

1994

Remedy Construction completion date

1994

West Bank Side SVE system shut down

1996

First Five-Year Review

1996

EPA approves discontinuation of SVE (West Bank Side)

1996

EPA approves discontinuation of SVE (East Bank Side)

1997

Second Five-Year Review

2000

Third Five-Year Review

2005

Fourth Five-Year Review

2010

Pilot Study Begins

2013

Fifth Five-Year Review

2015

B. BACKGROUND

Physical Characteristics

Wausau, Wisconsin is located in the north central portion of the state along both sides of the
Wisconsin River. The Wausau Groundwater Contamination Site encompasses an area in the
northern section of the city and includes the drinking water well field (and all the production
wells). The extent of the area of concern for the Site includes both industrial and residential
areas. The City of Wausau provides drinking water for approximately 39,000 people. Several site
location maps are shown on Figures 1, 1.1, 1.2 and 1.3 in Appendix K.

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Land and Resource Use

Historically, there were two areas of concern that are associated with the Wausau Groundwater
Site. The first area is a Marathon Electric Corporation property along the West Bank of the
Wisconsin River, which includes a closed former municipal landfill. The second area is the
Wausau Chemical facility located along the East Bank of the river. A site plan is presented on
Figure 1.2 in Appendix K. A site schematic is shown on Figure 1.3 in Appendix K.

Site Geology and Hydrology

The Site is underlain by glacial outwash and alluvial sediments that have filled in the pre-glacial
stream valley in which the Wisconsin River now flows. This alluvial aquifer ranges
from 0 to 160 feet thick and has an irregular base and lateral boundaries. The relatively
impermeable bedrock that underlies the aquifer and forms its lateral boundaries within the pre-
glacial valley defines the boundaries of the aquifer. Six production wells in the Site area provide
drinking water for the City of Wausau. These wells are screened in the glacial outwash and
alluvial sand and gravel deposits that underlie and are adjacent to the Wisconsin River.

Under natural conditions, groundwater would flow toward and discharge to the Wisconsin River
and its tributary, Bos Creek. Under remedial pumping conditions, however, groundwater flowed
toward EW1 and the production wells. The operation of EW1 created groundwater flow divides
between the west and east City well fields and isolated from the production wells the former
landfill, which is a source of contaminated groundwater. Since the pilot shutdown of EW1 in
July 2012, however, groundwater flows toward the City production wells. This is not a problem
since the water is captured by the City's wells and treated in the treatment plant.

History of Contamination

In 1982, three of Wausau's deep aquifer water production wells (CW3, CW4 and CW6) were
found to be contaminated with VOCs. The primary contaminants were PCE, TCE
and 1,2- DCE. EPA awarded the City of Wausau a federal grant in 1983 for design and
installation of packed-tower VOC air strippers for water supply treatment. However, as high
VOC levels persisted, EPA's emergency response team was called in 1984 to install a granular
activated carbon (GAC) treatment system at CW6 until the air strippers for CW3 and CW6 were
completed later that year. At that point, CW4 was used only occasionally during peak periods
until 1989. CW4 was decommissioned when new production well CW10 went on-line.

As described below, EPA issued two RODs to remediate the sources of contamination and
ensure that human health and the environment are protected.

Initial Response

In 1985, a groundwater extraction system with air stripping treatment (required by the State of
Wisconsin) began operating at the Wausau Chemical facility. The system consisted of a series of
extraction wells in the shallow portion of the aquifer at the south end of the Wausau Chemical
property. The Wausau Chemical groundwater system operated until 1996, when it was shut
down and abandoned.

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Basis for Taking Action

Remedial planning began at Wausau Groundwater as the Site was proposed for the National
Priorities List (NPL) on April 10, 1985. The Site became a final NPL listing on June 10, 1986. A
two-phase RI was carried out from August 1987 to September 1988. As noted in the 1989 RI
Report, the City's production wells were located in a wedge-shaped aquifer composed of glacial
outwash materials deposited within the pre-glacial bedrock river valley of the Wisconsin
River, and the aquifer was the sole_-source of potable water for the City of Wausau.

Two separate sources of contamination were identified within the zone of influence of the City's
production wells. The first source was a former municipal landfill located south of CW6 on the
Marathon Electric property in the west study area. The second source was the Wausau Chemical
facility located between CW3 and CW4 in the east study area.

Three plumes of contamination were found within the zone of influence of the City's production
wells. The first was composed primarily of TCE and was emanating from the former municipal
landfill. This plume was found to split at the boundary of the source area, with one leg migrating
north to CW-6 and the second leg migrating under the river to CW3. The second plume
originated from the southern boundary of the Wausau Chemical property and impacted both
CW3 and CW4. This plume was comprised primarily of PCE but contained other VOCs as well.
The third plume originated from the northern boundary of the Wausau Chemical property and
was impacting CW3. This contamination in the plume was comprised primarily of PCE.

Soils at both source areas were contaminated with VOCs. The soils in the vicinity of the former
municipal landfill were contaminated primarily with TCE. Soils on the Wausau Chemical
property were contaminated primarily with PCE, along with other VOCs.

During the RI/FS, several important potential exposure pathways were identified for the Site.
Potential health risks were evaluated for the following exposure pathways and potentially
exposed population: (1) residents using municipal water exposed to contaminant concentrations
equal to the laboratory detection limits of 0.5 ug/l for PCE and TCE and 1.0 ug/l for DCE and
(2) hypothetical users of private well water, assuming a private well is installed within the
contaminated aquifer in the future. It was assumed that a user would be exposed to the highest
concentrations found in groundwater, approximately 4300 ug/l, to obtain the worst-case for this
exposure scenario. FS reports that evaluated remedial alternatives based on the findings of the
two phases of the RI were completed in September 1988 and August 1989. EPA issued an
interim ROD in December 1988 that called for a groundwater pump and treatment system to
address the contaminant plume emanating from the former municipal landfill. A final ROD,
which incorporated the interim ROD with remedy objectives for the Wausau Chemical
source areas and plumes, was signed in September 1989.

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Remedy Selection/ Remedy Implementation

The Site was managed under 2 RODs.

Following are the RAOs of the 1988 ROD for OU 1 (Interim Action ROD):

1)	Prevent exposure to contaminated drinking water from groundwater supply wells located
within the contaminant plume threatening the West Well Field; and

2)	Protect the West Well Field from future increased levels of contamination.

The response actions outlined for the Wausau Groundwater Site in the December 1988 interim
ROD included the following remedial components:

1)	Construction and operation of a treatment system for removal of contaminants;

2)	Installation of a groundwater extraction well located in the southern portion of the west
contaminant plume;

3)	Discharge of treated water to the Wisconsin River;

4)	Installation of additional wells, as necessary^ and

5)	Preparation of an O&M monitoring program.

The selected remedy established cleanup levels for the contaminants of concern in groundwater
based on the Safe Drinking Water Levels (MCLs) and the Wisconsin Administrative Rule
chapter NR 140 for groundwater protection.

The RAOs of the 1989 ROD for OU 2 (Final ROD) were to address the remaining concerns at
the Site following implementation of the Interim Action and included:

1)	Elimination of the continued sources of groundwater contamination identified as the former
City landfill / Marathon Electric property and the Wausau Chemical property:, and

2)	Prevention of exposure to contaminants present in the two additional
groundwater contaminant plumes identified.

The response actions outlined for the Wausau Groundwater Site in the September 1989 final
ROD include the following additional components:

1) Construction and operation of SVE systems to remove volatile contaminants from soils at
each of the identified source areas;

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2) Treatment of off-gases from the SVE system operation using vapor phase carbon units, which
would be regenerated off-site;

3) Groundwater remediation utilizing the City's municipal wells and existing air strippers for
removal of contaminants from plumes affecting the wells and

4) Monitoring of groundwater and soil. The soils were cleaned up with the goal of protecting
groundwater.

All the remedy components required by the RODs have been put in-place and are either still
operating or are completed.

Interim Action

A CD which describes how the remedial actions outlined in the December 1988 interim ROD
will be funded and implemented was entered in U.S. District Court in September 1989. The
PRPs who have agreed to perform the work at the Site are the Settling Defendants. The
contractor hired by the Settling Defendants (Wausau PRP Group) completed the remedial design
(RD) for the remedial actions in March 1990. On-site construction began in June 1990, with the
installation of a 16-inch diameter extraction well screened over the bottom 40 feet of the aquifer.
The extraction well is located at the north boundary of the former municipal landfill and was
originally pumped at the rate of 1600 gallons per minute (gpm). The pumping rate was later
reduced to 850 gpm following a determination that the higher rate created a groundwater zone of
influence that extended too far to the south. A pump house with an associated main and piping
was installed to facilitate treatment and discharge of the extracted groundwater. The groundwater
was pumped from the well to the pump house and was discharged to a manhole storm sewer
leading to a fenced, rip rap, outfall structure designed to enhance volatilization prior to final
discharge into the Wisconsin River. The discharge was required to meet the substantive
requirements of the Wisconsin Pollution Discharge Elimination System (WPDES) permit issued
by the WDNR. In October 1990, a final inspection of the interim remedy was completed by
EPA.

Additional groundwater remediation was provided by an extraction system operated as an
interim remediation measure by Wausau Chemical between 1985 and 1996. The extraction
system at Wausau Chemical consisted of a series of shallow wells at the south end of the Wausau
Chemical property. Groundwater was treated by air stripping. This system was not part of the
ROD or the CD. Operation of the system ceased in 1996.

Final Remedial Action

The final remedial action (RA) at the Site consists of two SVE systems to address the source
areas and groundwater extraction and treatment utilizing existing municipal production wells and
an extraction well. A CD which described how the remedial actions set forth in the September
1989 final ROD were to be funded and implemented was entered in U.S. District Court in
January 1991. The contractor hired by the Wausau PRP group completed the RD for the RA in
June 1993.

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Source Area Remediation

Contaminated soil and groundwater leachate were addressed by the former SVE systems, one at
the East Bank and one at the West Bank. Soil remedial objectives included the following: (1)
elimination of any excess groundwater leachate; (2) prevention of direct contact with
contaminated soils and (3) prevention of ingestion and inhalation human health risks by
treatment of contaminated soils. Soil clean up levels for the Site were determined using a
groundwater leachate model to eliminate additional risks for groundwater contamination.

Source area remediation was accomplished by the installation of SVE systems at Marathon
Electric (West Bank) and Wausau Chemical (East Bank) in January 1994. Off-gas treatment was
provided by vapor phase carbon. Construction for the final site remedy began in October 1993
with the installation of the two separate SVE systems. One system was located in the vicinity of
the closed landfill on the west side of the Wisconsin River and included two extraction wells.
The second SVE system was located on Wausau Chemical property on the east side of the river
and originally included four wells. Two additional extraction wells were later added to the east
side SVE system. As discussed below in more detail, EPA and WDNR approved the completion
of the soil remedy for both areas at the Wausau Groundwater Site. The SVE wells were screened
from five feet below grade to the water table, and the off-gas systems consisted of two activated
carbon canisters with a sampling port in between.

Soil Remediation at Wausau Chemical-East Bank

The SVE system at the south loading dock (aka drum storage area) on the Wausau Chemical
property is also known as the East Bank system. It operated from 1994 to 2001. The SVE system
was necessary to remediate the source area contamination which was contributing to a VOC
plume in the groundwater. The PRPs submitted a Mid-Point of Operations Report for the SVE
systems in October 1995. In April 1996, after confirmatory soil samples were taken to assure soil
clean up levels were achieved, EPA approved a shutdown of the SVE system on the west side of
the Wisconsin River and a shutdown of the two northern SVE wells on the east side of the river.
Operation of four SVE wells in the southern portion of the system on the east side of the river
continued at that time, although volatile organic soil contamination had decreased substantially
in that area. In 1997, a draft SVE System closure report was submitted by the PRPs. However,
EPA and WDNR expressed concern that these areas had elevated levels relative to the area as a
whole. The system continued to operate until 2001. The PRPs sent a letter requesting permanent
shut down of the SVE system in March 2002. EPA and WDNR requested confirmation soil and
groundwater sampling, which was completed and reported in March 2004. After discussions
between the WDNR and EPA, it was decided that final closure of the SVE system would be
granted once a deed restriction imposing industrial property controls was implemented and
recorded against the Wausau Chemical property. Closure maybe granted by the State of
WI under ch. NR 726, WI Administrative Code (WAC) if it is shown that groundwater
contaminant concentrations are stable or declining. The WDNR issued a closure letter in April
1996 stating the property owner had met the conditions required for final closure, including
maintenance of the concrete barrier and implementation and recording of a deed restriction
advising of the presence of residual contamination. On April 26, 2007, Marathon County
recorded a deed restriction for the Wausau Chemical property. On August 29, 2007,

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the PRPs requested final closure of the SVE system and completion of the source area
remediation. The EPA and WDNR approved final closure of the East Bank source remediation
system in September 2007. EPA approved the request in a letter dated September 26, 2007. A
requirement of the closure plan was an annual inspection of the paved areas surrounding the
Wausau Chemical property, as described in the Pavement Cover and Building Maintenance
Plan.

The purpose of the annual inspection is to inspect the integrity of the paved areas of the property
and make recommendations as needed to minimize rainwater infiltration and prevent direct
human contact with soils. In September 2008, the SVE wells and soil gas probes that had
comprised the soil gas extraction and monitoring system for the East Bank SVE system were
abandoned according to WDNR requirements. At the same time, the fifteen shallow groundwater
extraction wells at the south side of the Wausau Chemical property were also abandoned. The
recorded deed restrictions and Pavement Cover and Building Maintenance Plan must still be
reviewed by EPA and WDNR. Copies of the abandonment forms for the SVE wells, gas probes
and groundwater extraction wells can be found in the annual reports.

Soil Remediation at the former Wausau City Landfill West Bank

The SVE system operated from 1994 to 1996 on the former Wausau City Landfill at the
Marathon Electric property and is known as the West Bank system. The SVE system at
Marathon Electric operated until April 1996, when the West Bank source remediation was
approved as complete. In April 1996, after confirmatory soil samples were taken to assure soil
clean up levels were achieved, EPA approved shut down of the SVE system on the west side of
the Wisconsin River and shutdown of the two northern SVE wells on the east side of the river.
Operation of four SVE wells in the southern portion of the system on the east side of the river
continued at that time, although volatile soil contamination had decreased substantially in that
area. The East Bank SVE system was modified in 1996 and continued to operate. In January
2001, the East Bank system was shut down while evaluation for final closure occurred. In 2007,
EPA acknowledged that the East Bank source was complete. The SVE system at Marathon
Electric operated until April 1996, when EPA approved as complete the West Bank source
remediation. WDNR approved the closure of the West Bank SVE system in 2006.

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Appendix B
Background

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APPENDIX B - BACKGROUND

Physical Characteristics

Wausau, Wisconsin is located in the north central portion of the state along both sides of the
Wisconsin River. The Wausau Groundwater Contamination Site encompasses an area in the
northern section of the city and includes the drinking water well field (and all the production
wells). The extent of the area of concern for the Site includes both industrial and residential
areas. The City of Wausau provides drinking water for approximately 39,000 people. Several site
location maps are shown on Figures 1, 1.1, 1.2 and 1.3 in Appendix K.

Land and Resource Use

Site Geology and Hydrology

History of Contamination

-------
completed later that year. At that point, CW4 was used only occasionally during peak periods
until 1989. CW4 was decommissioned when new production well CW10 went on-line.

As described below, EPA issued two RODs to remediate the sources of contamination and
ensure that human health and the environment are protected.

Initial Response

Basis for Taking Action

-------
(2) hypothetical users of private well water, assuming a private well is installed within the
contaminated aquifer in the future. It was assumed that a user would be exposed to the highest
concentrations found in groundwater, approximately 4300 ug/l, to obtain the worst-case for this
exposure scenario. FS reports that evaluated remedial alternatives based on the findings of the
two phases of the RI were completed in September 1988 and August 1989. EPA issued an
interim ROD in December 1988 that called for a groundwater pump and treatment system to
address the contaminant plume emanating from the former municipal landfill. A final ROD,
which incorporated the interim ROD with remedy objectives for the Wausau Chemical
source areas and plumes, was signed in September 1989.

-------
Remedy Selection/ Remedy Implementation

The Site was managed under 2 RODs.

Following are the RAOs of the 1988 ROD for OU 1 (Interim Action ROD):

1)	Prevent exposure to contaminated drinking water from groundwater supply wells located
within the contaminant plume threatening the West Well Field; and

2)	Protect the West Well Field from future increased levels of contamination.

The response actions outlined for the Wausau Groundwater Site in the December 1988 interim
ROD included the following remedial components:

1)	Construction and operation of a treatment system for removal of contaminants;

2)	Installation of a groundwater extraction well located in the southern portion of the west
contaminant plume;

3)	Discharge of treated water to the Wisconsin River;

4)	Installation of additional wells, as necessary^ and

5)	Preparation of an O&M monitoring program.

The selected remedy established cleanup levels for the contaminants of concern in groundwater
based on the Safe Drinking Water Levels (MCLs) and the Wisconsin Administrative Rule
chapter NR 140 for groundwater protection.

The RAOs of the 1989 ROD for OU 2 (Final ROD) were to address the remaining concerns at
the Site following implementation of the Interim Action and included:

1)	Elimination of the continued sources of groundwater contamination identified as the former
City landfill / Marathon Electric property and the Wausau Chemical property:, and

2)	Prevention of exposure to contaminants present in the two additional
groundwater contaminant plumes identified.

The response actions outlined for the Wausau Groundwater Site in the September 1989 final
ROD include the following additional components:

1) Construction and operation of SVE systems to remove volatile contaminants from soils at
each of the identified source areas;

-------
2) Treatment of off-gases from the SVE system operation using vapor phase carbon units, which
would be regenerated off-site;

3) Groundwater remediation utilizing the City's municipal wells and existing air strippers for
removal of contaminants from plumes affecting the wells and

4) Monitoring of groundwater and soil. The soils were cleaned up with the goal of protecting
groundwater.

All the remedy components required by the RODs have been put in-place and are either still
operating or are completed.

Interim Action

Final Remedial Action

-------
Source Area Remediation

Soil Remediation at Wausau Chemical-East Bank

Soil Remediation at the former Wausau City Landfill West Bank

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Appendix C

Documents Reviewed in Preparation of the Sixth FYR
for the Wausau Groundwater Contamination Site

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Appendix C

Documents Reviewed in preparation of the Sixth FYR for the Wausau
Groundwater Contamination Site include the following:

1; Five-year Review Reports: 7/10/00, 6/13/05, 4/9/10; 4/9/2015 U.S. EPA

2.	RD/ RA Consent Decrees: January 1991 & September 1989; U.S. EPA

3.	Record of Decisions: September 1989 & December 1988; U.S. EPA

Reports Submitted Since Previous Five-Year Review Report

4.	AMRs Wausau Groundwater Site file, VI Reports and O&M documents.

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Appendix D

Five-Year Review Checklist and List of Participants on Five-year Review Inspection

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Site Inspection Checklist

1. SI I I. INFORMATION

Site name:

Date of inspection:

Wausau GW Contamination Site

10/29/2019

Location and Region:

EPA ID:

Wausau, WI; Region 5

WID 980993521

Agency, office, or company leading the FYR:

Weather/temperature:

U.S. EPA

40 degrees F

Remedy Includes: (Check all that apply)

El Landfill cover/containment

~ Monitored natural attenuation

El Access controls

El Groundwater containment

IEI Institutional controls

~ Vertical barrier walls

El Groundwater pump and treatment

El Other: Treatment via Air Strippers

~ Surface water collection and treatment



Attachments:

IEI Inspection team roster attached

~ Site map attached

1

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Site Inspection Checklist



II.

IM1.KMi:\YS (Check al

1 thai apply)

1.

O&M Site Manager

, Click or tap to
Chuck Ahrens, Project Manager, ,

J ° enter a date.



Interviewed: M at site ~

at office

~ by phone

Phone Number: here to enter text.



Problems, suggestions:

Click or tap here to enter text.





~ Report attached

2.

O&M Staff

Name

, Click or tap to

• 1 11.1 G « . i

enter a date.



Interviewed: ~ at site ~

at office

~ by phone

Phone Number: here to enter text.



Problems, suggestions:

Click or tap here to enter text.





~ Report attached

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: WDNR









Contact: Matt Williams, Project Manager, Click or tap to

enter a date., P: Phone Number



Problems, suggestions:

f y 11 f 1." Ai" '("Qti n prp fTi An fpr fpYt





~ Report attached



i., i J l'i\ U! l.cl|..l 11 CI C I.U CI I LCI I.CAL

Agency: Click or tap here tc

enter text.







Contact: Name , Title

, Click or

ap to enter a da

t:e., P: Phone Number



Problems, suggestions:

rii pi- ry- to n h prp fr\ pnfpr f pYf'





~ Report attached



V 11 C I\ tjl ItlLI 11 CI C LAJ CI I LCI LCA L.

Agency: Click or tap here tc

enter text.







Contact: Name , Title

, Click or

ap to enter a da

t:e., P: Phone Number



Problems, suggestions:

rii pi- ry- ton hprp fr\ pnfpr fpYf'





~ Report attached



V 11 C I\ tjl ItlLI 11 CI C lO CI I LCI LCA L.

Agency: Click or tap here tc

enter text.







Contact: Name , Title

, Click or

ap to enter a da

t:e., P: Phone Number



Problems, suggestions:

Click or tap here to enter text.







4.

Other Interviews (optional):

Click or tap here to enter text.





~ Report attached

2

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Site Inspection Checklist



III. OVSITi: DOCl Ml']NTS & UI.COUDS \ EUI1

IKI) (Check all thai appl\)

1.

O&M Documents







IEI O&M manual El Readily available

~ Up to date

~ N/A



~ As-built drawings ~ Readily available

~ Up to date

~ N/A



IEI Maintenance logs El Readily available

~ Up to date

~ N/A



Remarks: Click or tap here to enter text.





2.

Site-Specific Health and Safety Plan

~ Readily available





~ Contingency Plan/Emergency Response Plan

~ Readily available





Remarks: Click or tap here to enter text.





3.

O&M and OSHA Training Records







~ Readily available

~ Up to date

El N/A



Remarks: Click or tap here to enter text.





4.

Permits and Service Agreements







~ Air discharge permit ~ Readily available

~ Up to date

El N/A



~ Effluent discharge ~ Readily available

~ Up to date

El N/A



~ Waste disposal, POTW ~ Readily available

~ Up to date

El N/A



~ Other permits: Click or tap here to enter text.







Remarks: Click or tap here to enter text.





5.

Gas Generation Records







~ Readily available

~ Up to date

El N/A



Remarks: Click or tap here to enter text.





6.

Settlement Monument Records







~ Readily available

~ Up to date

El N/A



Remarks: Click or tap here to enter text.





7.

Groundwater Monitoring Records







IEI Readily available

~ Up to date

~ N/A



Remarks: Click or tap here to enter text.





8.

Leachate Extraction Records







~ Readily available

~ Up to date

El N/A



Remarks: Click or tap here to enter text.





3

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Site Inspection Checklist

9. Discharge Compliance Records

~ Air	~ Readily available

K Water (effluent)	M Readily available

Remarks: On website

~	Up to date

~	Up to date

~	N/A

~	N/A

10. Daily Access/Security Logs

~ Readily available
Remarks: Click or tap here to enter text.

~ Up to date

~ N/A

IV. O&M COSTS

1. O&M Organization

~	State in-house

~	PRP in-house

~	Federal Facility in-house
Remarks: Click or tap here to enter text

~	Contractor for State
IE] Contractor for PRP

~	Contractor for Federal Facility

2. O&M Cost Records

KlReadily available [X] Up to date	~ Funding mechanism/agreement in place

Original O&M cost estimate Click or tap here to enter text.	~ Breakdown attached

Total annual cost by year for review period if available
From	To	Total cost

Click or tap to enter a Click or tap to	or tap here to ~ Breakdown attached

enter text.

From

To

Total cost



Click or tap to enter a

Click or tap to

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

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

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

enter text.

~ Breakdown attached

3. Unanticipated or Unusually High O&M Costs During Review Period

Describe costs and reasons:

Click or tap here to enter text.

4

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Site Inspection Checklist

V. ACCESS AM) INSTH I TIONAL CONTROLS



~ Applicable

~ N/A



1.

Fencing Damaged ~ Location shown on site map

~ Gates secured

~ N/A



Remarks: Click or tap here to enter text.







2.

Other Access Restrictions ~ Location shown on site map

~ Gates secured





Remarks: Click or tap here to enter text.







3.

Institutional Controls (ICs)









A. Implementation and Enforcement









Site conditions imply ICs not properly implemented

~ Yes

M No

~ N/A



Site conditions imply ICs not being fully enforced

M Yes

~ No

~ N/A



Type of monitoring {e.g., self-reporting, drive by)

Click or tap

here to ente

r text.



Frequency

Click or tap

here to ente

r text.



Responsible party/agency

Click or tap

here to ente

r text.



Contact: Name , Title , Click or tap to enter a date., P: Ph

one Number







Reporting is up-to-date

~ Yes

~ No

~ N/A



Reports are verified by the lead agency

~ Yes

~ No

~ N/A



Specific requirements in deed or decision documents have been

~ Yes

~ No

~ N/A



met



Violations have been reported

~ Yes

~ No

~ N/A



Other problems or suggestions:









ICIAP needs to be completed









B. Adequacy ^ ICs are adequate ~ ICs are inadequate

~ N/A





Remarks: Click or tap here to enter text.







4.

General









A. Vandalism/Trespassing ~ Location shown on site map

~ No vandalism evident



Remarks: Click or tap here to enter text.









B. Land use changes on site ~ N/A









Remarks: Click or tap here to enter text.









C. Land use changes off site ~ N/A









Remarks: Click or tap here to enter text.

-------
Site Inspection Checklist

vi. general site conditions

1. Roads ~ Applicable

~ N/A

A. Roads damaged ~ Location shown on site map

~ Roads adequate ~ N/A

Remarks: Click or tap here to enter text.



B. Other Site Conditions



Remarks '



Ml. LAN DM I.I, COVERS

1. Landfill Surface El Applicable

~ N/A

A. Settlement (Low Spots) ~ Location Shown on Site Map

IEI 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

El Cracking Not Evident

Lengths: Click or tap here .... 1t1 , ,

Widths: Click or tap here to enter text.

to enter text.

Depths: Click or tap here to enter
text.

Remarks: Click or tap here to enter text.



C. Erosion ~ Location Shown on Site Map

~ Erosion Not Evident

Areal Extent: Click or tap here to enter text. Depth: Click or tap here to enter text.

Remarks: Click or tap here to enter text.



D. 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: Some upgrade is needed



F. Alternative Cover (armored rock, concrete, etc.)

~ N/A

Remarks: asphalt road which contains some cracks



G. Bulges ~ Location Shown on Site Map

El Bulges Not Evident

Areal Extent: Click or tap here to enter text. Height: Click or tap here to enter text.

Remarks: Click or tap here to enter text.



H. Wet Areas/Water Damage IEI Wet Areas/Water Damage Not Evident

6

-------
Site Inspection Checklist

~ Wet Areas

~ Location Shown on Site Map

Areal Extent: Click or tap here to enter
text.

~ Ponding

~ Location Shown on Site Map

Areal Extent: Click or tap here to enter
text.

~ Seeps

~ Location Shown on Site Map

Areal Extent: Click or tap here to enter
text.

~ Soft Subgrade

~ Location Shown on Site Map

Areal Extent: Click or tap here to enter
text.

Remarks: Click or ta

tp here to enter text.

I. Slope Instability

~ Location Shown on Site Map

~ Slope Instability Not Evident

~ Slides

Areal Extent: Click or tap here to enter
text.

Remarks: Click or ta

tp here to enter text.

2. Benches

~ Applicable

E 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

M N/A or Okay

Remarks: Click or ta

p here to enter text.

B. Bench Breached

~ Location Shown on Site Map

[X] N/A or Okay

Remarks: Click or ta

tp here to enter text.

C. Bench Overtopped

~ Location Shown on Site Map

~ N/A or Okay

Remarks: Click or ta

tp here to enter text.

3. Letdown Channels

~ Applicable

E 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

M Settlement Not Evident

Areal Extent: Click

;»r tap here to enter text.

Depth: Click or tap here to enter text.

Remarks: Click or ta

tp here to enter text.

B. Material Degradation ~ Location Shown on Site Map M Degradation Not Evident

Material Type: Click

or tap here to enter text.

Areal Extent: Click or tap here to enter
text.

Remarks: Click or ta

tp here to enter text.

C. Erosion

~ Location Shown on Site Map ~ Erosion Not Evident

-------
Site Inspection Checklist

Areal Extent: Click or tap lit

ire to enter text. Depth: : or tap here to enter text.

Remarks: Some erosion is evident

D. Undercutting

~ Location Shown on Site Map IEI Undercutting Not Evident

Areal Extent: Click or tap lit

ire to enter text. Depth: : or tap here to enter text.

Remarks: Click or tap here i

o enter text.

E. Obstructions

~ Location Shown on Site Map ~ Undercutting Not Evident

Type: Click or tap here to ei

iter text.

Areal Extent: Click or tap ht

ire to enter text. Size: Click or tap here to enter text.

Remarks: Click or tap here i

o enter text.

F. Excessive Vegetative Growth ~ Location Shown on Site Map ~ Excessive Growth Not Evident

Areal Extent: Click or tap ht

, , ~ Vegetation in channels does not obstruct

ire to enter text. _ &

flow

Remarks: Click or tap here i

o enter text.

4. Cover Penetrations

~ Applicable IEI 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 i

o enter text.

B. Gas Monitoring Probes



~ Properly secured/locked

~ Functioning ~ Routinely sampled

~ Good condition

~ Evidence of leakage at penetration

~ Needs Maintenance

El N/A

Remarks: Click or tap here i

o enter text.

C. Monitoring Wells



IEI Properly secured/locked

~ Functioning El Routinely sampled

El Good condition

~ Evidence of leakage at penetration

~ Needs Maintenance

~ N/A

Remarks: Click or tap here i

o enter text.

D. Leachate Extraction Wells

8

-------




Site Inspection Checklist





~	Properly secured/locked

~	Good condition

~	Needs Maintenance
Remarks: Click or tap here to

~	Functioning ~ Routinely sampled

~	Evidence of leakage at penetration
E N/A

enter text.



E. Settlement Monuments

Remarks: Click or tap here to

~ Located ~ Routinely Surveyed El N/A
enter text.

5.

Gas Collection and Treatment

~ Applicable

El N/A



A. Gas Treatment Facilities

~	Flaring

~	Good condition
Remarks: Click or tap here to

~	Thermal Destruction

~	Needs Maintenance
enter text.

~ Collection for Reuse



B. Gas Collection Wells, Manifolds, and Piping

~ Good condition ~ Needs Maintenance
Remarks: Click or tap here to enter text.

El N/A

C. Gas Monitoring Facilities (e.g. gas monitoring of adjacent homes or buildings)

~ Good condition ~ Needs Maintenance El N/A
Remarks: Click or tap here to enter text.

6.

Cover Drainage Layer

~ Applicable

El N/A



A. Outlet Pipes Inspected

Remarks: Click or tap here to

~ Functioning
enter text.

El N/A



B. Outlet Rock Inspected

Remarks: Click or tap here to

~ Functioning
enter text.

El N/A

7.

Detention/Sediment Ponds

~ Applicable

El N/A



A. Siltation

Areal Extent: Click or tap her
Remarks: Click or tap here to

~ Siltation Not Evident
e to enter text. Depth: CIic
enter text.

El N/A
< or tap here to enter text.



B. Erosion

Areal Extent: Click or tap her
Remarks: Click or tap here to

IEI Erosion Not Evident
e to enter text. Depth: CI ic
enter text.

< or tap here to enter text.



C. Outlet Works

~ Functioning

El N/A

9

-------
Site Inspection Checklist

Remarks: Click or tap here to enter text.

D. Dam	~ Functioning

Remarks: Click or tap here to enter text.

E N/A

8. Retaining Walls

~ Applicable

E 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.

IEI Deformation Not Evident

B. Degradation	~ Location Shown on Site Map ~ Deformation Not Evident

Remarks: Click or tap here to enter text.

9. Perimeter Ditches/Off-Site Discharge

~ Applicable

E 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	~ Functioning

Remarks: Click or tap here to enter text.

~ N/A

Mil. VERTICAL BAUUIIU WAI LS

~ 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.

10

-------
Site Inspection Checklist

~ Performance Not Monitored
Frequency: Click or tap here to enter text
Remarks: Click or tap here to enter text.

~ Evidence of Breaching

Head Differential: Click or tap here to enter text

ix. (;uoiM)\\ \n u/si ui \( i: watku kk.mkdiks

Applicable

~ N/A

1. Groundwater Extraction Wells, Pumps, and Pipelines

Applicable

~ N/A

A.	Pumps, Wellhead Plumbing, and Electrical	El N/A

El Good Condition	~ All Required Wells Properly Operating ~ Needs Maintenance

Remarks: Click or tap here to enter text.

B.	Extraction System Pipelines, Valves, Valve Boxes, and Other Appurtenances

IEI Good Condition	~ Needs Maintenance

Remarks: Click or tap here to enter text.

C. Spare Parts and Equipment

IEI Readily Available	~ Good Condition

Remarks: Click or tap here to enter text.

~	Needs to be Provided

~	Requires Upgrade

2. Surface Water Collection Structures, Pumps, and Pipelines

~ Applicable

N/A

A. Collection Structures, Pumps, and Electrical

El 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

~ Readily Available	~ Good Condition

Remarks: Click or tap here to enter text.

~	Needs to be Provided

~	Requires Upgrade

3. Treatment System

~ Applicable

N/A

A. Treatment Train (Check components that apply)

El Metals removal	~ Oil/Water Separation

El Air Stripping	~ Carbon Absorbers

El Filters Click or tap here to enter text.

11

~ Bioremediation

-------
Site Inspection Checklist

El Additive (e.g. chelation agent, flocculent) Click or tap here to enter text.

~	Others Click or tap here to enter text.

El Good Condition	~ Needs Maintenance

El Sampling ports properly marked and functional
IEI Sampling/maintenance log displayed and up to date
IEI Equipment properly identified

El Quantity of groundwater treated annually See Table 3.2 Attached

~	Quantity of surface water treated annually Click or tap here to enter text.

Remarks: Municipal/ City Water Treatment Plant

B. Electrical Enclosures and Panels (properly rated and functional)

El N/A

~ Good Condition ~ Needs Maintenance

Remarks: Click or tap here to enter te1

-------
Site Inspection Checklist

B. Monitoring Data Suggests:

~ Groundwater plume is effectively contained	M Contaminant concentrations are declining

5. Monitored Natural Attenuation

A. Monitoring Wells (natural attenuation remedy)	~ N/A

IEI Properly secured/locked El Functioning	El Routinely sampled

~ All required wells located ~ Needs Maintenance	IEI Good condition

Remarks: wells are located during the monitoring events and documented

	X. Oil IKU KIM IM)I I S	

If there are remedies applied at the site which are not covered above, attach an inspection sheet
describing the physical nature and condition of any facility associated with the remedy. An example
would be soil vapor extraction.

XI. OVKKAM, 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.).

Issues noted with the landfill cover. Although it is maintained, it does not prevent infiltration.

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.

O&M is properly performed except the issue noted above with the landfill cover.

3.	Early Indicators of Potential Remedy Problems

Describe issues and observations such as unexpected changes in the cost or scope of O&M or a high
frequency of unscheduled repairs that suggest that the protectiveness of the remedy may be compromised
in the future.

Click or tap here to enter text.

4.	Early Indicators of Potential Remedy Problems

Describe possible opportunities for optimization in monitoring tasks or the operation of the remedy.

Click or tap here to enter text.

13

-------
'¦¦¦¦' t i ( ( 2J--1. (-¦(	' j

f	; v f 1 (:<;<• ^ K V K

ci,.ks,c&m

 : ' '

/ #' V



-------
Appendix E

Copy of Newspaper Notice Publication Announcing Five-Year Review Start

-------
WAUSAUDAILYHERALD.COM I FRIDAY, JUNE 28, 2019 I 5A

Michigan AG sues to shut down Great Lakes pipeline

ASSOCIATED PRESS

Michigan's attorney general sued Thursday to shut
down dual oil pipelines in the Great Lakes, saying they
pose an "unacceptable risk."

Democrat Dana Nessel's move came the same day
she also sought to dismiss pipeline operator Enbridg-
e's request for a ruling on the legality of a deal it struck
last year with former Republican Gov. Rick Snyder to
put replacement pipes in a tunnel beneath the Straits
of Mackinac.

"I have consistently stated that Enbridge's pipe-
lines in the Straits need to be shut down as soon as
possible because they present an unacceptable risk to
the Great Lakes," she said in a written statement.

Nessel said she acted after it became clear talks be-
tween Enbridge and Democratic Gov. Gretchen
Whitmer stalled.

The pipelines are part of Enbridge's Line 5, which
carries 23 million gallons of crude oil and natural gas
liquids daily between Superior, Wisconsin, and Sar-
nia, Ontario.

Whitmer ordered her administration not to imple-
ment the tunnel plan after Nessel said authorizing leg-
islation enacted in December violated the state consti-

tution.

Enbridge insists the twin pipes, which have been in
place since 1953, are in sound condition and could op-
erate indefinitely. But the company, based in Calgary,
Alberta, said it is willing to install a tunnel in bedrock
100 feet beneath the lakebed and foot the estimated
$500 million bill to eliminate virtually any possibility
of a leak.

Opponents contend Enbridge's refusal to shut
down the pipeline until the tunnel is completed means
the straits area would be endangered for at least an-
other five years. They point to a vessel anchor strike in
April 2018 that dented both pipes while damaging
three nearby electric cables, which leaked 800 gallons
of insulating mineral oil.

In 2017 and 2018, the Journal Sentinel reported ex-
tensively on pressure building to pump more oil
through aging Great Lakes pipelines as companies
struggled to gain approval for new pipelines in the
Great Plains states.

Wisconsin case

The Michigan action came the same day the Wis-
consin Supreme Court backed Enbridge in a separate

Pecha

Continued from Page 1A

community is in also mourning.

Shortly after his mother's death, Brodey Pecha
launched a Facebook fundraiser aiming to raise
$15,000 to help offset some of the costs incurred by the
family while Heidi was in the hospital. Well wishes,
sympathies and donations poured in from colleagues,
students, parents and others.

"Heidi was a very special person and an important
one to me. She was always there for me when I was
going through a hard time. She made everyone feel im-
portant and special," wrote one donor on the page.

"Heidi was one of the most caring and enthusiastic
people ever to work with teenagers," wrote another.

In a matter of days, the effort raised $17,525 from
about 400 people, and Brodey ended the fundraiser.

In the 25 years they were together, Todd and Heidi
built a quiet, unassuming life together, valuing time
with family, outdoors and animals and pets. They
raised goats and pigs at their rural home southeast of
Mosinee. Heidi had a soft spot for animals, all kinds of
animals, and took care of them all.

She and Todd also spent much of their summers in
Kewaunee, sleeping, through the years, in a pop-up
camper, a mobile home and, finally, a boat. Heidi and
Todd reveled in fishing, lounging at the beach and sim-

matter.

The Wisconsin Supreme Court has ruled for En-
bridge Energy in a case over whether the company
could be required to get additional insurance for a
pipeline project in Dane County.

Enbridge filed in 2014 to expand a pumping station
so it could expand capacity of a pipeline running from
northern Wisconsin to Illinois. But the county sought
to require Enbridge to get extra insurance in case of
spills.

The Legislature then blocked counties from requir-
ing additional insurance on pipelines when the opera-
tor already carries comprehensive insurance. After
Dane County required the extra insurance anyway, En-
bridge won at the circuit court level, only to have an
appeals court decide that Enbridge hadn't proven it
carried enough insurance.

The high court reversed that Thursday, writing that
Enbridge already had sufficient insurance.

ply relaxing around Lake Michigan.

"If you ever experienced Lake Michigan sunrises
and sunsets, you know how beautiful they are," said
Todd, who works as the wood yard manager at the pa-
per mill in Mosinee. "It isn't a social media world. ...
Some of our better times, most memorable times, were
when it was just the two of us."

Todd and Heidi simply gelled together. "It got to the
point in our relationship where we were truly on the
same page with each other," Todd said.

He doesn't know exactly whose idea it was to make
Thursday evenings "arts and crafts" night where they
would work on little projects, cook up special recipes
together. But it became a kind of date night, experi-
menting by making flat bread pizzas or fruit- and herb-
infused vodka in cool bottles. "We never even drank
them, we just used them for decoration," Todd said.

Cancer took Heidi when she was too young, Todd
said.

"But I got to spend 25 years with an amazing lady,"
he said. "I had 25 years in a great relationship. And a lot
of people don't get that."

A celebration of Heidi's life will be held Sunday at
the Stoney Creek Hotel and Conference Center, 1100
Imperial Ave., Rothschild. Social time will be held from
10 a.m. to 1 p.m.; remembrance speeches given from 1
p.m. to 2 p.m.; and a meal served at 2 p.m.

Contact Keith Uhlig at 715-845-0651 or kuhlig(a)
gannett.com. Follow him at (3>UhligK on Twitter and
Instagram or on Facebook.

<>EFW

EPA Begins Review of
Wausau Groundwater Contamination
Superfund Site

Wausau, Wisconsin

U.S. Environmental Protection Agency (EPA) is conducting a
five-year review of the Wausau Groundwater Contamination
Superfund site in Wausau, Wisconsin. 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
sixth review of the site.

EPA's cleanup of volatile organic compounds consisted of
several extraction wells and treatment systems, two soil vapor
extraction systems, a landfill cover over the waste area, land
and groundwater-use restrictions, and groundwater monitoring.
Also, several homes are being sampled to determine if vapor
intrusion is present.

More information is available for review at the Marathon
County Public Library, 300 N. First St., Wausau, and at
www.epa.gov/superfund/wausau-groundwater. The review
should be completed by April 2020.

The five-year review is an opportunity for you to tell EPA
about site conditions and any concerns you have. Contact:

Susan Pastor

Community Involvement
Coordinator
312-353-1325
pastor. susan{§!epa. gov

Sheri Bianchin

Remedial Project Manager
312-886-4745
bianchin. shefljSle pa. gov

You may call EPA toll-free at 800-621-8431, 8:30 a.m. to
4:30 p.m., weekdays.

WE

FOUND
THE

PROMOTION

YOU

WERE

OVERLOOKED
FOR.

Find what your job is missing.

Search local jobs

jobs.wausaudailyherald.com

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Service Plan (QSP), ADT's Extended Limited Warranty. ADT Pulse: ADT Pulse Interactive Solutions Services ("ADT
Pulse"), which help you manage your home environment and family lifestyle, require the purchase and/or activation
of an ADT alarm system with monitored burglary service and a compatible computer, cell phone or PDA with Internet
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systems that are connected to the ADT Pulse equipment. All ADT Pulse services are not available with the various
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all areas. GENERAL: For all offers, the form of payment must be by credit card or electronic chargeto your checking
or savings account, satisfactory credit history is required and termination fee applies. Certain packages require
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fees required for some services. For example, Burglary, Fire, Carbon Monoxide ana Emergency Alert monitoring
requires purchase and/or activation of an ADT security system with monitored Burglary, Fire, Carbon Monoxide ana
Emergency Alert devices and are an additional charge. Additional equipment may be purchased for an additional
charge. Additional charges may apply in areas that require guard response service for municipal alarm verification.
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Insurance. Please consult your insurance company. Photos are for illustrative purposes only and may not reflect the
exact product/service actually provided. Licenses: AL-19-001104, AR-CMPY.0001725 AZ-ROC217517, CA-ACO6320,
CT-ELC.0193944-L5, DC-EMS902653, DC-602516000016, DE-07-212, FL-EC13003427, EC13003401, GA-LVA205395,
I A-AS-0206, ID- ELE-SJ-39131, IL-127.001042, IN-City of Indianapolis: LAC-000156, KY-City of Louisville: 483,
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-------
Appendix F

Deed Restrictions Implemented on Wausau Chemical Property

-------
STATE OF WISCONaN ^MARATHON COUNTY

04/26/2007 2:24:45 PM
MICHAEL J SYDOW. REGISTER OF DEEDS

Document Number

lIHIIilllllll 1475599

•	i •

DEED RESTRICTION

Declaration of Restriction
In Re:

James E. Cherwinka Trust



tjvD

Parcel 1:

Part of the Northwest quarter (NW1/4) of the Northwest
quarter (NW1/4) of Section twenty-five (25), Township
twenty-nine (29) North, Range seven (7) East, in the City
of Wausau, County of Marathon, State of Wisconsin,
described as follows:

Beginning at a point on the South line of
Wausau Avenue 227.75 feet West of the West
line of Second Street; thence South
perpendicular to the South line of Wausau
Avenue, 70 feet; thence West, parallel with and
70 feet South of the South line of Wausau
Avenue, 147.60 feet, more or less, to a point
which is 15 feet Northwesterly of railroad siding
track; thence Southwesterly on a curve parallel
to and IS feet distant Northwesterly from the
center line of said railroad siding track, to a
point 458 feet West of the West line of Second
Street; thence North to the South line of Wausau
Avenue at a point which is 458 feet West of the West line
along the South line of Wausau Avenue 230.25 feet, more

Recording Area

Name and Return Address

VdPcJjL.
/

G'vU^/

James E. Cherwinka Trust
c/o Attorney James E. Wiederhoefl
Fowler and Wiederhoefl LLP
702 North Blackhawk Avenue
Madison, Wisconsin 53705-5326
and

Wausau Chemical Corp.
2001 North River Drive
Wausau, Wisconsin 54401

291-2907-252-0990 (JAJ .
291^2907-252-0997 AJ ui H^
Parcel Identification Numbers
(PIN)

of Second Street; thence East
or less, to the point of beginning.

Parcel 2:

Part of the Northwest quarter (NW1/4) of the Northwest quarter (NW1/4) of Section twenty-five
(25), Township twenty-nine (29) North, Range seven (7) East, in the City of Wausau, Marathon
County, State of Wisconsin, described as follows:

Commencing at a point on the South line of Wausau Avenue, 227.75 feet
West of the West line of Second Street; thence South perpendicular to South
line of Wausau Avenue, 70 feet; thence West parallel with and 70 feet South
of the South line of "Wausau Avenue, 147.60 feet, more or less, to a point
which is 15 feet NW'ly of railroad siding track, thence SW'Iy on a curve
parallel to and 15 feet NW'ly from the center line of said railroad siding track

1

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{

llllillIRR

to a point, said point being 131 feet South of the South line of Wausau
Avenue; thence at an azimuth of 180°, 23.05 feet to a point, said point being
the P.C. of a reverse curve to the right; thence SW'ly 224.05 feet along a curve
having the following data, radius 675.11 feet, tangents 112.97 feet, I angle
19°, long chord 222.85 feet, curve length 224.05 feet, degree of curvature 8°

28.8', to a point said point being the point of reverse curvature; thence SWly
166.90 feet along a curve to the left having the following data, radius 615.11
feet, tangents 120.77 feet, long chord 237.02 feet, curve length 238.5 feet,
curvature 9° 18.6', I angle 22° 13* to a point, which point is the point of
beginning of the excepted parcel hereafter described; thence at an azimuth of
87° 06' a distance of 273.95 feet to a point, said point being 50 feet
perpendicular to and West of the center line of the main line track of the C. M.

St. P. & P. R. R.; thence at an azimuth of 10° 40' a distance of 532.32 feet
parallel with and 50 feet West of the center line of said railroad tracks to a
point, said point being on (he South line of Wausau Avenue and 155.60 feet
West of the West line of Second Street; thence West along the South line of
Wausau Avenue 72.15 feet to the point of beginning; excepting therefrom the
following parcel; beginning at the point designated in the foregoing
description as the point of beginning of the excepted parcel; thence N 83° 46'

30" E, 99.6 feet; thence NE'ly, parallel with the centerline of the railroad
siding track of the Chicago, Milwaukee, St. Paul & Pacific Railroad, 181.1
feet; thence Northwesterly, at a right angle, 89.6 feet; thence SW'ly, along the
East boundary of River Drive, and along the West line of the parcel conveyed
in the foregoing description, 197 feet, more or less, to the point of beginning.

^	The above Parcels 1 and 2 are part of Parcel 1 of Certified Survey Map No. 12726 recorded in

O	the office of the Register of Deeds for Marathon County, Wisconsin, in Volume 55 of Certified

7^	Survey Maps on page 44, a copy of which is attached hereto as Exhibit A. The above Parcels 1

^	and 2 are also identified as PIN 291-2907-252-0990.

rf) And

fVawau Chemical Corporation

Part of the Northwest quarter (NW1/4) of the Northwest quarter (NW1/4) of Section twenty-five
(25), Township twenty-nine (29) North, Range seven (7) East, in the City of Wausau, Marathon
County, State of Wisconsin, designated as the excepted parcel, described as follows:

Commencing at a point on the South line of Wausau Avenue, 227.75 feet
West of the West line of Second Street; thence South perpendicular to South
line of Wausau Avenue, 70 feet; thence West parallel with and 70 feet South
of the South line of Wausau Avenue, 147.60 feet, more or less, to a point
which is 15 feet NW'ly of railroad siding track, thence SWly on a curve
parallel to and 15 feet NWly from the center line of said railroad siding track
to a point, said point being 131 feet South of the South line of Wausau
Avenue; thence at an azimuth of 180°, 23.05 feet to a point, said point being
the P.C. of a reverse curve to the right; thence SW'ly 224.05 feet along a curve
having the following data, radius 675.11 feet, tangents 112.97 feet, I angle

2

-------
IllBliBlilfl

p I* 7£SB9 J *

19°, long chord 222.85 feet, curve length 224.05 feet, degree of curvature 8°

28.8', to a point said point being the point of reverse curvature; thence S W'ly
166.90 feet along a curve to the left having the following data, radius 615.11
feet, tangents 120.77 feet, long chord 237.02 feet, curve length 238.5 feet,
curvature 9° 18.6', I angle 22° 13' to a point, which point is the point of
beginning of the excepted parcel hereafter described; thence at an azimuth of
87° 06' a distance of 273.95 feet to a point, said point being 50 feet
perpendicular to and West of the center line of the main line track of the C. M.

St. P. & P. R. R.; thence at an azimuth of 10° 40' a distance of 532.32 feet
parallel with and 50 feet West of the center line of said railroad tracks to a
point, said point being on the South line of Wausau Avenue and 155.60 feet
West of the West line of Second Street; thence West along the South line of
Wausau Avenue 72.15 feet to the point of beginning; excepting therefrom the
following parcel; beginning at the point designated in the foregoing
description as the point of beginning of the excepted parcel; thence N 83° 46'

30" E, 99.6 feet; thence NE'ly, parallel with the centerline of the railroad
siding track of the Chicago, Milwaukee, St. Paul & Pacific Railroad, 181.1
feet; thence Northwesterly, at a right angle, 89.6 feet; thence SWly, along the
East Boundary of River Drive, and along the West line of the parcel conveyed
in the foregoing description, 197 feet, more or less, to the point of beginning.

The above description is apart of Parcel 1 of Certified Survey Map No, 12726 recorded in the
office of the Register of Deeds for Marathon County, Wisconsin, in Volume 55 of Certified
Survey Maps on page 44. See Exhibit A. This parcel is also identified as PIN 291-2907-252-
0997.

STATE OF WISCONSIN	)

)ss

COUNTY OF MARATHON	)

WHEREAS, the James E. Cherwinka Trust and Wausau Chemical Corporation are the owners
of the above-described property.

, WHEREAS, James E. Cherwinka died on October 18, 2005. The James E. Cherwinka Trust is
the successor in interest to James E. Cherwinka in connection with said above-described
property.

WHEREAS, one or more historical tetrachloroethylene discharges have occurred on this
property, and as of November 7,2001, soil samples collected on this property contained
tetrachloroethylene at concentrations of 1.0 mg/kg at grid point 19-4 at a depth of eight feet and
0.67 mg/kg at grid point 35-7 at a depth of four feet, trichloroethylene at a concentration of 0.43
mg/kg at grid point 35-7 at a depth of four feet and cis-l,2-dichloroethylene at a concentration of
0.13 mg/kg at grid point 35-7 at a depth of four feet, all as shown on Figure 1.

WHEREAS, the existing building and pavement on the property provide a partial barrier,
minimizing infiltration, and the depth of the remaining contaminants prevents direct contact with
the residual soil contamination.

3

-------
A14T99M 4 a

^14/5599

WHEREAS, sampling data on and about the property has demonstrated soil cleanup adequately
protective of groundwater quality; however, residual soil contamination remains on the property.

WHEREAS, it is the desire and intention of the property owners to impose on the property
restrictions that will make it unnecessary to conduct further soil remediation activities on the
property at the present time.	<

NOW THEREFORE, the owners hereby declare that all of the property described above is held
ar.d shall be held, conveyed or encumbered, leased, rented, used, occupied and improved subject
to the following limitation and restrictions:

1.	Construction or installation of any water supply well on the property is prohibited
pursuant to this deed restriction.

2.	Plowing or cultivation of agricultural crops on the property is prohibited pursuant to this
deed restriction.

3.	The existing Wausau Chemical Corporation building shown on Exhibit B makes
complete remediation of soils beneath the building impractical. If the existing building is
removed or modified, the property owner shall conduct an investigation to determine the
degree and extent of soil contamination beneath the building. To the extent that soil
contamination is found at that time, the Wisconsin Department of Natural Resources shall
be immediately notified and the soil contamination shall be managed in accordance with
applicable statutes and rules. If currently inaccessible soil contamination near or beneath
the building is excavated in the future, the soil must be sampled and analyzed, may be
considered solid or hazardous waste if residual contamination remains and must be
stored, treated and disposed in compliance with applicable statues and rules.t

4.	The existing pavement forms a barrier that will be maintained in accordance with the
maintenance plan entitled "Pavement Cover and Building Barrier Maintenance Plan,
Wausau Chemical Corporation", dated October 17, 2006. The existing pavement will
minimize the infiltration of water which prevents additional groundwater contamination.
The existing pavement shall be maintained on the property in the locations shown on
Exhibit B. Such existing pavement shall not be removed without the approval of the
Wisconsin Department of Natural Resources.

5.	If construction or installation of buildings, structures or other improvements occur on
grid points 19-4 or 35-7 shown on Exhibit B, then the affected soils at grid points 19-4 or
35-7 shall be sampled and managed in accordance with amicable statutes and rules.

6.	The property shall be used only for industrial purposes.

This restriction is hereby declared to be a covenant running with the land and shall be fully
binding upon all persons acquiring the above-described property whether by descent, devise,
purchase, or otherwise. This restriction inures to the benefit of and is enforceable by the ,
Wisconsin Department of Natural Resources, its successors or assigns. The Department, its
successors or assigns, may initiate proceedings at law or in equity against any person or persons

4

-------
k»» 147®

-l	» *

who violate or are proposing to violate this covenant, to prevent the proposed violation or to
recover damages for such violation.

Any person who is or becomes owner of the property described above may request that the
Wisconsin Department of Natural Resources or its successor issue a determination that one or
more of the restrictions set forth in this covenant is no longer required. Upon the receipt of such
a request, the Wisconsin Department of Natural Resources shall determine whether or not the
restrictions contained herein can be extinguished. If the Department determines that the
restrictions can be extinguished, an affidavit, attached to a copy of the Department's written
determination, may be recorded by the property owner or other interested party to give notice
that this deed restriction, or portions of this deed restriction, are no longer binding.

By signing this document,	yft a«*|	asserts that he or she is duly

authorized to sign this document as a Trustesybf tfie James E. Cherwinka Trust.

IN WITNESS WHEREOF, the owner of the property has executed this Declaration of
Restrictions, this J3 day of Ap-f f	2007.

S ignature: ^9^
Printed Name: ' 	 v f- -

ft hop

Trustee, James E. Chferwu

trwinka Trust

Subscribed and sworn to before me

this day of /j {SAi j	, 20^7

My commission Cpii*a

By signing this document, J*	Ckeovt n led asserts that he or she is duly

authorized to sign this document as an officer of Wausau Chemical Corporation.

IN WITNESS WHEREOF, the owner of the property has executed this Declaration of
Restrictions, this day of /tyrf I	20(2?.

Signature^

Printed Name:///

flDfifieer of Wausau Chemical Corporation

5

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lllffllDH «w

TT is .Jocument was drafted by Michael Best & Friedrich LLP and Conestoga-Rovers and Associates, Inc.

X:VrLIENTBY)94167\0OO1 \A 1844250.1

I

6

I

i

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Document Number

DEED RESTRICTION

Declaration of Restriction
In Re:

James E. Cherwinka Trust
Parcel 1:

Part of the Northwest quarter (NW1/4) of the Northwest
quarter (NW1/4) of Section twenty-five (25), Township
twenty-nine (29) North, Range seven (7) East, in the City
of Wausau, County of Marathon, State of Wisconsin,
described as follows:

Beginning at a point on the South line of
Wausau Avenue 227.75 feet West of the West
line of Second Street; thence South
perpendicular to the South line of Wausau
Avenue, 70 feet; thence West, parallel with and
70 feet South of the South line of Wausau
Avenue, 147.60 feet, more or less, to a point
which is 15 feet Northwesterly of railroad siding
track; thence Southwesterly on a curve parallel
to and 15. feet distant Northwesterly from the
center line of said railroad siding track, to a
point 458 feet West of the West line of Second

STATE OF WISCONSIN - MARATHON COUNTY
RECORDED
04/24/2008 8:22:57 AM
MICHAEL J. SYDOW, REGISTER OF DEEDS

DOC*

1507947



Recording Area

Name and Return Address

James E. Cherwinka Trust
c/o Thomas A. Strandberg, Esq.
McNally, Maloney & Peterson, S.C.
2600 N. MayfairRoad, Suite 1080
Milwaukee, WT 53226
and

Wausau Chemical Corp.

2001 North River Drive
Wausau, Wisconsin 54401

CA+ /bit&ir	^

> 1 -#907-252-0990

291

291-2907-252-0997

n"	/v

AJU 3

Parcel Identification Numbers (PIN)

Street; thence North to the South line of Wausau
Avenue at a point which is 458 feet West of the West line of Second Street; thence East
along the South line of Wausau Avenue 230.25 feet, more or less, to the point of beginning;
EXCEPTING that part thereof described in Deed recorded in the office of the Register of
Deeds for Marathon County, Wisconsin, in Volume 257 of Micro-Records on page 356.

Parcel 2:

Part of the Northwest quarter (NW1/4) of the Northwest quarter (NW1/4) of Section twenty-five
(25), Township twenty-nine (29) North, Range seven (7) East, in the City of Wausau, Marathon
County, State of Wisconsin, described as follows:

Commencing at a point on the South line of Wausau Avenue, 227.75 feet
West of the West line of Second Street; thence South perpendicular to South
line of Wausau Avenue, 70 feet; thence West parallel with and 70 feet South
of the South line of Wausau Avenue, 147.60 feet, more or less, to a point
which is 15 feet Northwesterly of railroad siding track, thence Southwesterly

1

-------
Doci1507947

n 15*7947 a 8

on a curve parallel to and 15 feet Northwesterly from the center line of said
railroad siding track to a point, said point being 131 feet South of the South
line of Wausau Avenue; thence at an azimuth of 180°, 23.05 feet to a point,
said point being the P.C. of a reverse curve to the right; thence Southwesterly
224.05 feet along a-curve having the following data, radius 675.11 feet,
tangents 112.97 feet, I angle 19°, long chord 222.85 feet, curve length 224.05
feet, degree of curvature 8° 28.8', to a point said point being the point of
reverse curvature; thence Southwesterly 166.90 feet along a curve to the left ;
having the following data, radius 615.11 feet, tangents 120.77 feet, long chord
237.02 feet, curve length 238.5 feet, curvature 9° 18.6', I angle 22° 13' to a
point, which point is the point of beginning of the excepted parcel hereafter
described; thence at an azimuth of 87° 06* a distance of 273.95 feet to a point,
said point being 50 feet perpendicular to and West of the center line of the
main line track of the C. M. St. P. & P. R. R.; thence at an azimuth of 10° 40'
a distance of 532.32 feet parallel with and 50 feet West of the center line of
said railroad tracks to a point, said point being on the South line of Wausau
Avenue and 155.60 feet West of the West line of Second Street; thence West
along the South line of Wausau Avenue 72.15 feet to the point of beginning;

EXCEPTING therefrom the following parcel; beginning at the point
designated in the foregoing description as the point of beginning of the
excepted parcel; thence North 83° 46' 30" East, 99.6 feet; thence
Northeasterly, parallel with the centerline of the railroad siding track of the
Chicago, Milwaukee, St. Paul & Pacific Railroad, 181.1 feet; thence
Northwesterly, at a right angle, 89.6 feet; thence Southwesterly, along the East
boundary of River Drive, and along the West line of the parcel conveyed in
the foregoing description, 197 feet, more or less, to the point of beginning.

The above Parcels 1 and 2 are part of Parcel 1 of Certified Survey Map No. 12726 recorded in
the office of the Register of Deeds for Marathon County, Wisconsin, in Volume 55 of Certified
Survey Maps on page 44, a copy of which is attached hereto as Exhibit A. The above Parcels I
and 2 are also identified as PIN 291-2907-252-0990.

And

Wausau Chemical Corporation

Part of the Northwest quarter (NW1/4) of the Northwest quarter (NW1/4) of Section twenty-five
(25), Township twenty-nine (29) North, Range seven (7) East, in the City of Wausau, Marathon
County, State of Wisconsin, designated as the excepted parcel, described as follows:

Commencing at a point on the South line of Wausau Avenue, 227.75 feet
West of the West line of Second Street; thence South perpendicular to South
line of Wausau Avenue, 70 feet; thence West parallel with and 70 feet South
of the South line of Wausau Avenue, 147.60 feet, more or less, to a point
which is 15 feet Northwesterly of railroad siding track, thence Southwesterly
on a curve parallel to and 15 feet Northwesterly from the center line of said
railroad siding track to a point, said point being 131 feet South of the South
line of Wausau Avenue; thence at an azimuth of 180°, 23.05 feet to a point,

2

-------
1 1507947

said point being the P.C. of a reverse curve to the right; thence Southwesterly
224.05 feet along a curve having the following data, radius 675.11 feet,
tangents 112.97 feet, I angle 19°, long chord 222.85 feet, curve length 224.05
feet, degree of curvature 8° 28.8', to a point, said point being the point of
reverse curvature; thence Southwesterly 166.90 feet along a curve to the left
having the following data, radius 615.11 feet, tangents 120.77 feet, long chord
237.02 feet, curve length 238.5 feet, curvature 9° 18.6', I angle 22° 13' to a
point, which point is the point of beginning of the excepted parcel hereafter
described; thence at an azimuth of 87° 06' a distance of273.95 feet to a point,
said point being 50 feet peipendicular to and West of the center line of the
main line track of the C. M. St. P. & P. R. R.; thence at an azimuth of 10° 40'
a distance of 532.32 feet parallel with and 50 feet West of the center line of
said railroad tracks to a point, said point being on the South line of Wausau
Avenue and 155.60 feet West of the West line of Second Street; thence West
along the South line of Wausau Avenue 72.15 feet to the point of beginning;
excepting therefrom the following parcel; beginning at the point designated in
the foregoing description as the point of beginning of the excepted parcel;
thence N 83° 46' 30" E, 99.6 feet; thence Northeasterly, parallel with the
centerline of the railroad siding track of the Chicago, Milwaukee, St. Paul &

Pacific Railroad, 181.1 feet; thence Northwesterly, at a right angle, 89.6 feet;
thence Southwesterly, along the East Boundary of River Drive, and along the
West line of the parcel conveyed in the foregoing description, 197 feet, more
or less, to the point of beginning.

The above description is a part of Parcel 1 of Certified Survey Map No. 12726 recorded in the
office of the Register of Deeds for Marathon County, Wisconsin, in Volume 55 of Certified
Survey Maps on page 44. See Exhibit A. This parcel is also identified as PIN 291-2907-252-
0997.

STATE OF WISCONSIN	)

)ss

COUNTY OF MARATHON	)

WHEREAS, the James E. Cherwinka Trust and Wausau Chemical Corporation are the owners
of the above-described property.

WHEREAS, James E. Cherwinka died on October 18,2005. The James E. Cherwinka Trust is
the successor in interest to James E. Cherwinka in connection with said above-described
property.

WHEREAS, one or more historical tetrachloroethylene discharges have occurred on this
property, and as of November 7, 2001, soil samples collected on this property contained
tetrachloroethylene at concentrations of 1.0 mg/kg at grid point 19-4 at a depth of eight feet and
0.67 mg/kg at grid point 35-7 at a depth of four feet, trichloroethylene at a concentration of 0.43
mg/kg at grid point 35-7 at a depth of four feet and cis-l,2-dichloroethylene at a concentration of
0.13 mg/kg at grid point 35-7 at a depth of four feet, all as shown on Figure 1.

3

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illtlll «• 1507947

H19BTP947 4 B

WHEREAS, the existing building and pavement on the property, provide a partial barrier,
minimizing infiltration, and the depth of the remaining contaminants prevents direct contact with
the residual soil contamination.

WHEREAS, sampling data on and about the property has demonstrated soil cleanup adequately
protective of groundwater quality;-however, residual soil contamination remains on the property.

WHEREAS, it is the desire and intention of the property owners to impose on the property
restrictions that will make it unnecessary to conduct further soil remediation activities on the
property at the present time.

NOW THEREFORE, the owners hereby declare that all of the property described above is held
and shall be held, conveyed or encumbered, leased, rented, used, occupied and improved subject
to the following limitation and restrictions:

1.	Construction or installation of any water supply well on the property is prohibited
pursuant to this deed restriction.

2.	Plowing or cultivation of agricultural crops on the property is prohibited pursuant to this
deed restriction.

3.	The existing Wausau Chemical Corporation building shown on Exhibit B makes
complete remediation of soils beneath the building impractical. If the existing building is
removed or modified, the property owner shall conduct an investigation to determine the
degree and extent of soil contamination beneath the building. To the extent that soil
contamination is found at that time, the Wisconsin Department of Natural Resources shall
be immediately notified and the soil contamination shall be managed in accordance with
applicable statutes and rules. If currently inaccessible soil contamination near or beneath
the building is excavated in the future, the soil must be sampled and analyzed, may be
considered solid or hazardous waste if residual contamination remains and must be
stored, treated and disposed in compliance with applicable statues and rules.

4.	The existing pavement forms a barrier that will be maintained in accordance with the
maintenance plan entitled "Pavement Cover and Building Barrier Maintenance Plan,
Wausau Chemical Corporation", dated October 17,2006. The existing pavement will
minimize the infiltration of water which prevents additional groundwater contamination.
The existing pavement shall be maintained on the property in the locations shown on
Exhibit B. Such existing pavement shall not be removed without the approval of the
Wisconsin Department of Natural Resources.

5.	If construction or installation of buildings, structures or other improvements occur on
grid points 19-4 or 35-7 shown on Exhibit B, then the affected soils at grid points 19-4 or
3S-7 shall be sampled and managed in accordance with applicable statutes and rules.

6.	The property shall be used only for industrial purposes.

This restriction is hereby declared to be a covenant running with the land and shall be fully
binding upon all persons acquiring the above-described property whether by descent, devise,

4

-------
i doc# 1507947

purchase, or otherwise. This restriction inures to the benefit of and is enforceable by the
Wisconsin Department of Natural Resources, its successors or assigns. The Department, its
successors or assigns, may initiate proceedings at law or in equity against any person or persons
who violate or are proposing to violate this covenant, to prevent the proposed violation or to
recover damages for such violation.

Any person who is or becomes owner of the property described above may request that the
Wisconsin Department of Natural Resources or its successor issue a determination that one or
more of the restrictions set forth in this covenant is no longer required. Upon the receipt of such
a request, the Wisconsin Department of Natural Resources shall determine whether or not the
restrictions contained herein can be extinguished. If the Department determines that the
restrictions can be extinguished, an affidavit, attached to a copy of the Department's written
determination, may be recorded by the property owner or other interested party to give notice
that this deed restriction, or portions of this deed restriction, are no longer binding.

By signing this document, rfhcmt 9*^

vfct. Jk ¦ ti.



Trustee, James E. Cherwinka Trust

Subscribed and sworn to before me
this y day of

Notary Public, State	

My commission A&tAt/fAS&'U /

By signing this document, TTqLi* /$*+)<*

asserts that he or she is duly

authorized to sign this document as an officer of Wausau Chemical Corporation.

rN WITNESS WHEREOF, the owner of the property has executed this Declaration of
Restrictions, this JS day of	c.	, 20

Signature:	

Printed Name:

(y Jo A

Officer of Wausau Chemical Corporation

5

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doc«1507947

RI9B7M7 S B

Subscribed and sworn to before me

this /^day of /yo /	, 20*S.



Not:
M

Dta^^ubl ic^ Stat(
y^ommission S





This docuincnl was drafted by Michael Best & Friedrich LLP; Conestoga-Rovcrs and Associates. Inc.; and McNally, Maloney St Peterson, S.C.

X:\CLIENTB\094167MWOI \A 1844250.1

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Appendix G

Excerpt From the Wausau Municipal Code - Title 19;

Chapter 19.30

and

WDNR BRRTS/GIS Registry Notice and Coversheet

-------
74-7^r^^

Title 19
PLUMBING

Chapters:

19.04	State Code—State License

19.08	Plumbing Inspector

19.12	Permits

19.16	Inspections

19.20	Sewers

19.24	Connection to Water Main

19.30	Private Water Wells

19.32	Swimming Pools

19.36	Individual Sewage Disposal Systems

19.40	Cross-connection to Water Service

19.44	Special Provisions

19.48	Insurance

19.52	Penalties

Wausau Municipal Code

19.1

-------
Wausau Municipal Code

Chapter 19.04
STATE CODE—STATE LICENSE

Sections:

19.04.010 State plumbing code adopted.

19.04.020 State license required.

19.04.030 Conflict of provisions.

19.04.010 State plumbing code adopted. Chapter 145 of the Wisconsin Statutes and all
future amendments thereto and Comm 25 and Comm 81 -87 of the Wisconsin Administrative Code
(WAC), and all future amendments and official bulletins thereto are adopted and, by reference, made
a part of this title with the same force and effect as though set out in full in this title. Failure to
comply with any of the provisions of the statutes or administrative rules, regulations and bulletins
constitutes a violation of this title, subject to the forfeitures provided herein. Copies of the statutes
and administrative rules, regulations and bulletins adopted in this title shall be kept on file in the
office of the plumbing inspector in the city hall. (Ord 61.5113 §1, 2001, File No. 01-0518; Ord.
61-4380 §1 (part), 1978.)

19.04.020 State license required. No person shall engage in or work at plumbing as defined
in Chapter 145 of the Wisconsin Statutes without complying with that chapter. (Ord. 61-4380
§1 (part), 1978.)

19.04.030 Conflict of provisions. Where a conflict exists between this title and the WAC,
Revisions or Official Bulletins, the provisions of WAC, its Revisions or Official Bulletins shall
prevail, except where an ordinance has been adopted after the effective date of the conflicting WAC
provision. (Ord. 61-4380 §l(part), 1978.)

19.2

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Wausau Municipal Code

Chapter 19.08
PLUMBING INSPECTOR

Sections:

19.08.010	Inspector.

19.08.020	Permits.

19.08.030	Registration of plumbers.

19.08.040	Manufactured products.

19.08.050	Records.

19.08.010	Inspector. There shall be one or more plumbing inspectors. (Ord. 61-4380
§1 (part), 1978.)

19.08.020	Permits. The inspector or authorized agent shall take applications and issue
permits to qualified applicants. (Ord. 61-4380 § 1 (part), 1978.)

19.08.030 Registration of plumbers, (a) The plumbing inspector shall keep on file a
registration of all master, journeyman and apprentice plumbers engaged in the plumbing trade in the
city.

(b) The registration shall include the name, address, license number, and current receipt
number. In addition, apprentices shall state year of apprenticeship and the shop to which indentured.
Master and journeyman registration shall state "contracting plumber or maintenance plumber" and
place of employment. (Ord. 61-4380 §l(part), 1978.)

19.08.040 Manufactured products. When requested by the manufacturer or another
municipality, the inspector is authorized to make inspections of plumbing installations manufactured
for shipment out of the city. (Ord. 61-4380 §l(part), 1978.)

19.08.050 Records. The inspector shall prepare suitable applications, keep a daily log of
all office transactions, and file with the common council a monthly report of such transactions.
(Ord. 61 -4380 § 1 (part), 1978.)

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Chapter 19.12
PERMITS

Sections:

19.12.010 Installation permit.

19.12.020 When required.

19.12.030 Fees. ,

19.12.040 Application.

19.12.050 Restrictions on issuance.

19.12.060 Expiration.

19.12.010 Installation permit. No person shall install or cause to be installed any plumbing
or drainage unless a permit therefor has been issued by the plumbing inspector, and no plumbing
shall be used until it has been inspected and approved by the inspector. No permit fee shall be
refunded and no permit shall be transferable. (Ord. 61-4380 §l(part), 1978.)

19.12.020 When required. A permit shall be obtained:

(a)	To perform any clearwater drainage or plumbing work as defined in Chapter 145 of
the Wisconsin Statutes, the Wisconsin Administrative Code (WAC), or this title;

(b)	To abandon a water or sewer system before a wrecking or moving permit shall be
issued by the city;

(c)	For the installation, replacement, or relocation of any water conditioning unit. Only
the original installation of exchange regeneration service type units require a permit;

(d)	For the installation, replacement, or relocation of any domestic water heating unit;

(e)	For construction of any water distribution system from a source other than city water

mains;

(f)	For the connection of any dispensing unit to water and/or waste pipes;

(g)	For the connection of any injection equipment intended to inject or otherwise insert
any chemical, soap, or other material of any kind whatsoever into any water distribution pipe;

(h)	For the water and/or waste connection for each water-cooled air conditioner or water-
cooled motor of humidifier;

(i)	. For the installation of all inside roof leaders or downspouts;

(j) For new or reconstructed sanitary sewer lateral or storm drains;

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(k) For new or reconstructed water service extension from water main to curb stop or to
building;

(1) For the installation of any sump pump or ejector;

(m) For the discharge point of any subsoil or footing drain. The storm sewer or catch
basin or sump will not require an additional permit at the discharge point;

(n) When inspection is requested, except for inspection of plumbing work to be shipped
out of the city ;

(o) A permit will be required for the replacement of all plumbing fixtures;

(p) The requirements of section 19.48.010 of this title shall not apply to licensed and
registered maintenance plumbers obtaining permits for plumbing work within the complex of their
employer's business enterprises. Section 19.48.010 shall apply to any work performed in a public
right-of-way;

(q) Permits may be applied for by licensed master plumbers and qualified home owners
pursuant to Chapter 145. of the Wisconsin Statutes, either or both of whom may be prosecuted for
the failure to obtain the permit prior to the commencement of the job. (Ord. 61-4654 § (part), 1988;
Ord. 61-4380 §1 (part), 1978.)

19.12.030 Fees, (a) The following permit and inspection fees shall be paid at the time a
permit is issued:

New or reconstructed water service extension from curb stop two

inches or less, each one hundred feet or fraction thereof 		$11.00

For each additional inch in diameter		$7.25

New or reconstructed sanitary building sewer extension from main,

curb or lot line, any size, each one hundred feet or fraction thereof	$11.00

New or reconstructed building or area storm sewer extension from

main, curb or lot line, any size, each one hundred feet or fraction

thereof	*.			$11.00

New or reconstructed sanitary or storm building drains, any size,

each one hundred feet or fraction thereof	 $ 11.00

For each fixture or fixture connection 			$7.25

Private sewer and water mains, any size, each one hundred feet or

fraction thereof 			$11.00

Water conditioners, replacement or relocation				$10.50

Water heaters, replacement or relocation 	 $ 10.50

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Dispensing equipment connection, replacement or relocation 		$10.50

Water distribution system from source other than city water mains ..	$10.50

Fire protection sprinkler system 		$10.50

Below surface lawn sprinkler system 		$10.50

Sumps or catch basins (sanitary and clearwater) 		$7.25

Sump pump or ejectors (sanitary and clearwater) 		$7.25

Inside roof leaders or downspouts (each roof terminal) 		$7.25

Subsoil drain discharge point 			$7.25

Private water well (five-year permit—issued by Wausau Water

Works		 				$60.00

Private sewage disposal system 		$37.00

Swimming pool 			$37.00

Reconstruction of any part of the building drain, soil waste and vent
pipe, downspouts, or water distribution piping. No permit will be
required where permit is issued for additional fixtures, connected
appliances and appurtenances or the relocation or replacement of

existing units			$10.50

Water distribution and drain piping for manufacturing processes,

each one hundred fee or fraction thereof		$ 11.00

To abandon water or sewer system when wrecking or moving a	-

building 		 		$37.00

To abandon a private well and/or septic system 			$37.00

Inspect and attest to plumbing installed for shipment out of the city	$37.00

Minimum fee charged for all permits 	 		$37.00

Reinspection fee 		;	$55.00

Failure to obtain permit prior to commencement of work		double fees

(b) Fixtures, appliances and appurtenances shall include but not be limited to: water
closets, wash basins, bathtubs, shower stalls, urinals, service sinks, sinks, dishwashers, garbage
grinders, disposals, laundry tubs, floor drains, site drains, drinking fountains, bar connections, soda
fountains, water-cooled refrigerators, ice cube machines, dental cuspidors, all type water heaters,
water-cooled motor connections, all water conditioning units, sumps, drain tile receivers, footing
or subsoil drain discharge point, inside roof drains, catch basins, yard drains, grease and oil
separators, pumps and ejectors, water or waste connection to machines, water or waste connection

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to any appliance, buried lawn sprinklers, drink dispensers, swimming pools, water-cooled air
conditioner and connections, mobile home connections, fire protection installation, private sewage
disposal, water wells and injection equipment. (Ord. 61-5353 §4,2007, File No. 00-1134; Ord. 61-
5314 §4.2006, File No. 00-1134; Ord. 61-5276 §4,2005, File No. 00-1134; Ord. 61-5243 §l(part),
2004, File No. 00-1134; Ord. 61-5218 §l(part), 2003, File No. 00-1134; Ord. 61-5159 §l(part),
2002, File No. 02-0131; Ord. 61 -5094 § 1,2000, File No.00-1134; Ord. 61 -5066 § 1,2000; Ord. 61 -
5020 §1, 1999; Ord. 61-5018 §l(part), 1998; Ord. 61-4962 §1 (part),. 1996; Ord. 61-4875 §l(part),
1994; Ord. 61-4726 §2(part), 1990; Ord. 61-4654 §1 (part), 1988; Ord. 61-4599 §1,1986; Ord. 61-
4380 §1 (part). 1978.)

19.12.040 Application, (a) An application for a permit shall be made to the plumbing
inspector or a designee before any work is started.

(b) The application shall state the property owner's name, address, and the land
description where the work is to be done. It shall include the size and material of the water and
sewer service pipes to the buildiDg and the kind and number of fixtures, appliances and
appurtenances to be installed together with a statement that the owner and applicant will be bound
by and subject to the rules and regulations of this chapter. Diagrams and notarized statements that
may be considered necessary to ensure a complete and legal plumbing installation may be required
as part of the application. (Ord. 61-4380 §l(part), 1978.)

19.12.050 Restrictions on issuance.* (a) No plumbing or sewer permit, with the exception
of water and sewer laterals for street improvements, shall be granted until a building permit has been
issued by the building inspector.

(b)	No plumbing, clearwater drainage, or sewer permit will be issued to any person who
is in noncompliance with an order of the electrical, building, or plumbing inspector.

(c)	If any work is commenced without a permit first having been obtained therefor, the
permit fee shall be twice the usual fee. Payment of any fee required by this chapter shall not relieve
any person of the forfeitures that may be imposed for violation of this title. (Ord. 61-4380 §1 (part),
19^8.)

19.12.060 Expiration. Permits will automatically expire:

(a)	When work ceases for a period of sixty days without good and reasonable cause;

(b)	Upon cancellation or expiration of insurance required by section 19.48.010 of this

title;

(c)	Expire on completion of work for which it was issued. (Ord. 61-4380 §l(part),

1978.)

For other restrictions see also sections 19.28.030, 19.32.010, 19.32.020,
19.36.020(b) and 19.44.040(a) of this title.

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Chapter 19.16
INSPECTIONS

Sections:

19.16.010	Wlien required.

19.16.020	Notice for inspection.

19.16.030	Covering of work.

19.16.040	Report of existing unsanitary conditions.

19.16.050	Violation.

19.16.060	Certificate of occupancy.

19.16.010 When required. The plumbing inspector's jurisdiction includes but is not limited

to:

(a)	The entire building sanitary sewer and storm drainage, before backfilling, form the
main sewer or other disposal terminal to the building; including connections at point of discharge;
private sewage disposal systems; water wells and water service from curb box or approved well
installation into the building; ,

(b)	The building drain, and branches thereof under tests as prescribed. Such inspection
shall be made before any part of the drain is covered;

(c)	The soil waste vent pipes and the water distribution piping known as "roughing in"
shall be inspected under test before it is enclosed or covered;

(d)	All clearwater drains, interior downspouts, or roof leaders, subsoil or footing drain
connection points, water-cooled air conditioners and connections, area and parking lot drainage;

(e)	All devices of any kind connected to the water distribution pipe shall be inspected;

(0 Plumbing installations after fixtures, appliances and appurtenances have been tested
and the installation is ready for use. The final inspection shall be made with the water supply
serving the system turned on. (Ord. 61-4380 §l(part), 1978.)

19.16.020 Notice for inspection, (a) It shall be the responsibility of the person in whose
name the permit is issued, to notify the inspector's office in person, by telephone or in writing when
work is ready for test and inspection. If the inspection is not made the next full working day after
the notice is given, the work may be covered and continued.

(b) Notice must be given before 2 p.m. to trigger the next full working day rule. (Ord.
61-4380 §1 (part), 1978.)

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19.16.030 Covering the work, (a) No part of any plumbing or clearwater drainage system
shall be covered until it has been inspected and approved. If any part is covered before being
inspected and approved, it shall be uncovered at the direction of the inspector.

(b)	When the inspector approves of work, a tag shall be attached to either the building
permit or to the work itself, and no plumbing or clearwater drainage work shall be covered until such
tag is in place.

(c)	Upon request, the owner or plumber shall be furnished with a certificate or letter
indicating that an inspection has been made and showing whether the installation has been approved
or disapproved. Violations or condemnation notice shall be issued by letter stating the reason. (Ord.
61-4380 §1 (part), 1978.)

19.16.040 Report of existing unsanitary conditions. Reports that plumbing in any building
is contrary to this chapter or is of faulty construction, liable to breed disease or sickness, or is a
menace to health shall be made to the county health officer. (Ord. 61-4380 §l(part), 1978.)

19.16.050 Violation. The plumbing inspector or designee shall investigate all reports of
improper or defective plumbing or drainage. If such investigation discloses violation of this title,
the inspector shall notify the owner or tenant of such premises by registered mail or personal service
to correct any such improper or defective installation within thirty days. Any person failing to
comply with such notice shall be subject to the penalty provided in Chapter 19.52 of this title. (Ord.
61-4380 §1 (part), 1978.)

19.16.060 Certificate of occupancy. Upon completion of the plumbing work pursuant to the
permit, the person doing the work shall notify the plumbing inspector, who shall inspect the work.
If approved, the inspector shall issue a certificate of occupancy which shall contain the date of such
inspection and a resume of the inspection. No such certificate shall be issued unless the plumbing
work is in strict conformity with the rules and regulations set forth in this title. (Ord. 61-4380
§ 1 (part). 1978.)

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Sections:

Chapter 19.20
SEWERS

19.20.010	Separate drains for each building.

19.20.020	Material, joints and connections.
19.20.030 . Size.

19.20.040	Draining of waters into sanitary sewers.

19.20.050	Connection to sewer mains.

19.20.060	Location.

19.20.070	Connection requirements.

19.20.080	Drain ends protected.

19.20.090	Prohibited location.

19.20.100	Defective or inferior pipe prohibited.

19.20.110	Old pipe or drain.

19.20.120	Use of sewers.

19.20.125	External grease interceptors.

19.20.130	Shori ng of trenches.

19.20.140	Backfilling.

19.20.150	Maintenance.

19.20.010 Separate drains for each building. Every building shall have a separate and
independent connection with a public main sanitary sewer, private sewage disposal system, or
private main sanitary sewer. A private main sanitary sewer shall conform to standard specifications
of the city for public sewers and shall be approved by the plumbing inspector and city engineer.
Manholes shall be located not less than twenty-five feet from any building. (Ord. 61 -43 80 § 1 (part),
1978.)

19.20.020 Material, joints and connections. All building sanitary and storm sewer piping
extending from a public sewer or other disposal terminal to within three to five feet of the outside
foundation walls shall be of material, joints and connections approved in the Wisconsin
Administrative Code (WAC). The disposal terminal shall be described as the end of the sewer
service lateral or private sewage disposal system; in the event no lateral has been installed, it shall
be the city sewer main. A building sanitary or storm sewer connection to a private or public main
sanitary or storm sewer shall conform to sections 19.20.050 and 19.20.070 of this chapter. (Ord.
61-4380 §l(part), 1978.)

19.20.030 Size. The size of building sewers shall be determined by the provisions of WAC.
(Ord. 61-4380 §l(part), 1978,)

19.20.040 Draining of waters into sanitary sewers. The downspout or roof drain of any
building, any air conditioner, or other clearwater cooling device, any cistern overflow, or any
groundwater drain shall not be connected to any sanitary sewer, nor shall rain or surface water be
drained directly or indirectly into any sanitary sewer:

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(a)	Disconnection. The owner of any building or land wherein there is a violation of the
provisions of this section shall cause the violation to be corrected within six months after being
notified in writing by the plumbing inspector, whose duty it shall be to enforce this section.

(b)	Drainage. All drainage of waters enumerated in this section shall be made either
directly into a storm sewer or into a public street or alley beyond the curb line, subject to the
approval of the plumbing inspector. No person shall permit the drainage of water across any
sidewalk or public area so as to cause or tend to cause any hazard or danger to pedestrians or users
thereof. (Ord 61-4380 §1 (part), 1978.)

19.20.050 Connection to sewer mains. No person shall make a connection of any kind to
a public sanitary or storm sewer, or replace or reconstruct any sanitary or storm sewer lateral without
a permit from the plumbing inspector. Connections to any sanitary or storm sewer main pipe shall
be done by city employees or their designees. Connections to manholes shall be performed privately
with inspection by city employees. (Ord. 61-4778 §l(part), 1992; Ord. 61-4428 §1, 1979; Ord.
61-4380 §1 (part), 1978.)

19.20.060 Location. The plumbing inspector, with the cooperation of the water and
sewerage utilities, shall keep a proper sewer connection record in a book, card index, or plat
provided for that purpose showing the location of the lot, the master plumber proposing to lay the
sewer or drain, and of the exact location of the public sewer to each drain or sewer so laid.
Information concerning the sizes, location and depth of public and private sewers or drains and the
position of the branch, junction and appurtenances will be furnished by the water and sewerage
utilities. All reasonable care will be taken to ensure the correctness of such information, but such
correctness will not be guaranteed under any circumstances. When in accordance with the
measurements furnished, the junction is not found within three feet of the point designated, an
approved Y or T fitting shall be used and such connection shall be made under the direction of the
plumbing inspector or designee in accordance with 19.20.050 of this Chapter. (When sewer laterals
are not in the same trench as the water lateral, the installer of the lateral shall report to the utility the
location of the lateral referenced from permanent points, i.e., property comers, manholes, hydrants,
etc. In all cases, when the lateral is installed for future use a two-inch by four-inch board shall be
placed at the end of the lateral to reach the ground surface, clearly marking the location of the pipe.)
(Ord. 61-4778 §l(part), 1992; Ord. 61-4380 §l(part), 1978.)

19.20.070 Connection requirements, (a) Size. The connection shall be of the saddle type.
The fitting used in the connection shall be made in such a manner as to ensure that no protrusion of
the fitting into the main sewer pipe will result. The connector shall fit perfectly the contour of the
inside of the sewer and shall be sufficiently designed to fit the particular size main sewer pipe into
which the connection is made. The hole shall be of such size to provide one-eighth inch clearance
between the outside of the fitting and the hole. The space so provided shall be completely filled with
cement grout. The space between the shoulder of the fitting and the face of the main sewer pipe
shall be one-eighth inch thick and this space shall be completely filled with cement grout. The
connection shall be encased in concrete.

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(b)	Fitting. The fitting shall be of cast iron, concrete, vitrified clay, asbestos cement,
plastic, bituminous fibre pipe, or other approved materials, and shall be capable of receiving the type
oif pipe used for the building sewer lateral.

(c)	Fees. All taps will be billed on time and material basis. In cases, whereby the utility
is inspecting the installation a flat fee of twenty-five dollars will be assessed in addition to the
normal permit fees. (Ord. 61-4778 § 1 (part), 1992; Ord. 61-4428'§§2, 3, 4, 1979; Ord. 61-4380
§1 (part), 1978.)

19.20.080 Drain ends protected. The ends of all sanitary sewer pipes not immediately
connected shall be securely closed with a plug so as to prevent the introduction of sand, earth or
drainage from an excavation. The ends of all sewer laterals installed for future use shall be sealed
with a plug or cap of the same material as the lateral. (Ord. 61-4380 §l(part), 1978.)

19.20.090 Prohibited location. No water or sewer lateral, water service, or building sewer
shall extend over or through any property description except the property served. Access shall be
through a public right-of-way. (Ord. 61-4380 §l(part), 1978.)

19.20.100 Defective or inferior pipe prohibited. No person shall connect with any public
sewer any pipe that is cracked, damaged, or of any inferior make or quality. Should any person
furnish pipe of an inferior make or quality to connect with a public sewer, the master plumber shall
refuse to install the same and shall immediately notify the plumbing inspector, who shall require that
necessary change be made so as to.conform with this chapter. (Ord. 61-4380 §l(part), 1978.)

19.20.110 Old pipe or drain. Whenever necessary to disturb a drain or sewer in actual use,
the same shall not be obstructed nor discontinued without special permission of the plumbing
inspector; and it is unlawful to make any new connections with or extensions to any old drain
without permission of the plumbing inspector. (Ord. 61-4380 §1 (part), 1978.)

19.20.120 Use of sewers. No person shall deposit in any sewer or drain, garbage, gasoline,
tar, grease, waste oil, rags, or other substances likely to cause obstruction, nuisance, or explosion
therein, or to do any act which may cause injury thereto. Any person who violates any provisions
of this section shall, in addition to the penalty prescribed in this chapter, be liable to the city for the
cost of removing such obstruction and of repairing injury resulting therefrom. This section is in
addition to and shall be read with Chapter 13.62 of this code. (Ord. 61-4380 §l(part), 1978.)

19.20.125 External Grease Interceptors. Exteirnal grease interceptors shall be installed and
maintained for all new restaurants, large kitchen operations, fast food establishments, etc. Existing
businesses under extensive remodeling and where grease problems have been documented, the
plumbing inspector may require installation of exterior grease interceptors as a condition of a
plumbing permit. (Ord. 61-5121 §1, 2001, File No. 01-0615.)

19.20.130 Shoring of trenches. Whenever there is danger of caving, the sides of all trenches
shall be supported with adequate sheeting and braces to comply with Industrial Commission
Regulations, Ind. 6.01-6.02-6.03-6.06-6.12-6.21, WAC, a copy of which shall be on file in the city
clerk's office. (Ord. 61-4380 §1 (part), 1978.)

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19.20.140 Backfilling (a) The backfilling of all trenches to a depth of twelve inches over
the pipe shall comply with WAC, and shall be the direct responsibility of the plumbing inspector.

(b) The remainder of the backfilling of that portion of trenches within the public right-of-
way, to the property side of the sidewalk line, shall be the responsibility of the excavating contractor
and shall be as follows:

(1)	The remainder of the backfilling, after foundations are prepared, with proper
procedures as detailed in WAC, may consist of clay type soils with proper moisture
content for maximum compaction, drying or wetting soils as needed and with
mechanical compaction at time of back-filling. Backfilling shall be mechanically
compacted in layers not to exceed eight inches in depth. The contractor shall have
a vibratory-type compactor on the job site, in operating condition, before starting to
backfill with clay type soils. Other backfill materials shall be limited to granular soil
materials or rocky substances not exceeding one cubic foot in volume. Rocks shall
be entirely enveloped by fine material. Compaction shall be to a minimum of ninety-
five percent Proctor Density. Sandy soil shall have optimum moisture when
mechanically compacted.

(2)	Backfilling for pipe sewers may be done immediately after the placing by
hand of fine backfill. Such backfilling may be carried on from the top of the trench
by mechanical means, or by dumping directly from trucks, or by hand. The backfill
in no case shall be dropped from such height or in such volume that its impact upon
the sewer structure will cause damage.

(3)	Trenches, where excavated material is sandy or granular, or where, at the
option of the inspector, sandy or granular material is specially imported for backfill
purposes, compaction may be obtained by jetting. Sandy or granular material shall
pass a four-inch square sieve and shall not contain more than five percent of material
which will pass a #200 sieve. It shall be of such character as to readily compact with
water and shall permit excess water to pass through it quickly. Soils jetted shall be
compacted to a minimum of ninety-five percent Proctor Density;

(A)	The hose shall have a minimum diameter of two inches, and the pipe
nozzle a minimum diameter of one and one-half inches and a minimum
length of four feet. A hydrant regulating valve shall be provided by the
contractor so that the hydrant, if one is used, can be fully opened while
jetting is proceeding.

(B)	During the jetting operations, the nozzles shall be inserted as deeply
into the backfill as is possible without damaging the sewer structure or its
foundation. The insertions shall be made at intervals of five feet or less and
maintained unless the backfilling is saturated. Depressions caused by
flooding shall be backfilled until there is no further settlement. Where city
water is not available, mechanical compaction shall be used.

(Ord. 61-4380 §l(part), 1978.)

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19.20.150 Maintenance. No person shall file any claim against the city for costs or damages
for any repairs, replacements, or interrupted service of any sewer lateral. It shall be the
responsibility of the owner of the property being served by any sewer lateral to maintain the entire
lateral from a point including the connection to the sewer main and extending through the entire -
public right-of-way to the property line. (Ord. 61-4380 §1 (part), 1978.)

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Chapter 19.24
CONNECTION TO WATER MAIN2

Permit required.

Separate water service.

Material.

Size.	.

Valve controls.

Authority to control water service.

Compulsory connection to sewer and water.

19.24.010 Permit required. No connection to any public water main shall be made without
a permit from the plumbing inspector. All such work shall be executed in compliance with city
ordinances, la ws and regulations of the state, or by any agency thereof. (Ord. 61-4380 §1 (part),
1978.)

19.24.020 Separate water service. Every building shall have a separate and independent
connection with a public water main where provided in a public right-of-way abutting the property.
(Ord. 61-4380 §1 (part), 1978.)

19.24.030 Material. The underground water service pipe from the curb stop or a private
water supply system to any building shall be of type "K" copper water tube or ductile iron water
main. On a case by case basis, the plumbing inspector may consider other types of piping for
underground water service pipe. Thawing of this type of piping will solely be the responsibility of
the property owner or tenant. (Ord. 61-5119 §1, 2001, File No. 01-0613; Ord. 61-4380 §l(part),
1978.)

19.24.040 Size. The water service or building supply pipe to any building shall be sized in
accordance with Wausau water utility regulations. (See 13.16.070 of this code.) The minimum size
shall be one inch.

Water services accommodating future uses on existing vacant property shall be sized for the
maximum land use of the property. The land use is to be determined by the Wausau municipal
zoning ordinance in effect at the time of the installation of the water services. (Ord. 61-4380
§l(part), 1978.)

19.24.050 Valve controls. Service controls equal in size to the service piping shall include
a valve shutoff at the main, a curb stop or valve at the curb, or privately-owned pump, and a gate,
ball, or plug valve inside the foundation wall of each building where the meter is installed. A gate,
ball, or plug valve equal to or larger than the meter size shall be provided on the outlet side of the

Sections:

19.24.010
19.24.020
19.24.030
19.24.040
19.24.050
19.24.060
19.24.070

For compulsory connection, see Chapter 13.16 of this code.

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meter. Service piping of one and one-half inches or over shall have a full size bypass around meter.
(Ord. 61-4380 §1 (part). 1978.)

19.24.060 Authority to control water service. No plumber shall turn on, or leave turned on,
any water service curb stop after the completion and trial of his work, which for any reason has been
turned off by the water department. No unauthorized individual shall turn water on or off after it
has been turned on or off from the given service. (Ord. 61-4380 §l(part), 1978.)

19.24.070 Compulsory connection to water. When notified, the owner of any building
intended for human habitation or occupancy abutting on any street, alley, or other thoroughfare in
which a public water main has been extended and is available for service, shall cause to be made a
water supply connection thereto, and shall abandon any existing source of water except as may be
permitted by special permit signed by the plumbing inspector. In all cases connection to public
water supply will occur within one year after public water becomes available. If abandonment of
private wells are ain explicit condition of DNR approval for new construction of sanitary sewers per
Wisconsin Administrative Code requirements, the Wausau sewerage utility will ensure the proper
abandonment of private wells at no expense to the property owner. This will only apply to private
wells within fifty feet of sixteen-inch or larger sanitary sewers which are constructed in the future.
In these cases the property owner will be required to make immediate connection to the public water
supply at his own expense as defined per this section in order to permit the timely abandonment of
the private wells. Property owners affected by this provision will be notified no less than ninety days
prior to this requirement. (See also Chapter 13.16 of this code.) (Ord. 61-4544 §4, 1984; Ord.
61-4380 §l(part), 1978.)

19.16

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Wausau Municipal Code

Chapter 19.30
PRIVATE WATER WELLS

Sections:

19.30.010 Purpose.

19.30.020 Definitions.

19.30.030 Private well permit.

19.30.040 Private well abandonment.

19.30.050 Penalties.

19.30.010 Purpose. This chapter regulates the construction and continued use of private
wells within the city where public water service is provided. This chapter is also intended to prevent
contamination of groundwater and to protect public health, safety and welfare by assuring that
unused, unsafe or noncomplying wells or wells which may serve as conduits for contamination or
wells which may be illegally cross-connected to the public water system are properly abandoned.
(Ord. 61-4738 §l(part), 1991.)

19.30.020 Definitions. For the purpose of this chapter:

(a)	"Municipal water system" means Wausau Water Works.

(b)	"Noncomplying" means a well or pump installation which does not comply with the
provisions of Chapter NR 812, Wisconsin Administrative Code, in effect at the time the well was
constructed, a potential contamination source was installed, the pump was installed or work was
done on either the well or pump installation.

(c)	"Pump installation" means the pump and related equipment used for withdrawing
water from a well including the discharge piping, the underground connections, pitless adapters,
pressure tanks, pits, sampling faucets and well seals or caps.

(d)	"Unsafe" means a well or pump installation which produces water which is
bac teriologically contaminated or contaminated with substances exceeding the standards of Chs. NR
109 or 140, Wisconsin Administrative Code, or for which a health advisory has been issued by the
Department of Natural Resources.

(e)	"Unused" means a well or pump installation which is not in use or does not have a
functional pumping system.

(f)	"Well" means an excavation or opening into the ground made by digging, boring,
drilling, driving, or other methods for the purpose of obtaining groundwater for consumption or
other use.

19.17

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Wausau Municipal Code

(g) "Well abandonment" means the filling and sealing of a well according to the
provisions of Ch. NR812. Wisconsin Administrative Code. (Ord. 61-5126 §1 (part), 2001, File No.
01-0833; Ord. 61-4738 §l(part), 1991.)

19.30.030 Private well permit. The plumbing inspector may grant a permit to a private well
owner to operate a well for a period not to exceed five years, providing conditions of this code and
other applicable state and health requirements are met. An owner may request an initial or renewal
of a private well permit on an application form provided by Wausau Water Works. The permit
request must clearly state the purpose of the well and ensure the following conditions have been met:

(a)	The well and pump installation meet or are upgraded to meet the requirements of Ch.
NR 812, Wisconsin Administrative Code;

(b)	The well has been tested and verified bacteriologically safe as required by Wisconsin
Administrative Code NR 811.10(2). The lab reports shall be attached to the permit application in
cases of renewals;

(c)	There are no cross-connections between the well and pump system and the municipal
water system;

(d)	The permit application for existing wells shall be reviewed by the utility director or
environmental engineer prior to the permit issuance by the plumbing inspector. Requests for permits
for new private water supply wells to be constructed within the city limits should be reviewed by
the commission. (Ord. 61-5126 §l(part), 2001, File No. 01-0833; Ord. 61-5021 §1,1999; Ord. 61-
4738 § 1 (part), 1991.)

19.30.040 Private well abandonment. All wells located on premises served by the municipal
water system shall be abandoned in accordance with the terms of this code and Ch. NR 812,
Wisconsin Administrative Code, by August 31, 1991, or no later than one year from the date of
connection to the municipal water system, whichever occurs last, unless a private well permit has
been obtained by the well owner from the city as specified by this code.

All wells abandoned under the jurisdiction of this code or rule shall be abandoned according
to the procedures and methods of Ch. NR 812, Wisconsin Administrative Code. All debris, pump,
piping, unsealed liners and any other obstructions which may interfere with sealing operations shall
be removed prior to abandonment.

An abandonment report form, supplied by the Department of Natural Resources, shall be
submitted by the well owner to Wausau Water Works and the Department of Natural Resources
within ten days of the completion of the well abandonment. (Ord. 61 -5126 § 1 (part), 2001, File No.
01-0833; Ord. 61-4738 §l(part), 1991.)

19.30.050 Penalties. Any well owner violating any provision of this chapter shall upon
conviction be punished by forfeiture of not less than twenty dollars nor more than one hundred
dollars and the cost of prosecution. Each day of violation is a separate offense. If any person fails
to comply with this chapter for more than ten days after receiving written notice of the violation, the

19.18

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Wausau Municipal Code

municipality may impose a penalty and cause the well abandonment to be performed and the
expense to be assessed as a special tax against the property. (Ord. 61-4738 §l(part), 1991.)

19.19

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Wausau Municipal Code

Chapter 19.32
SWIMMING POOLS

Sections:

19.32.010 Public—Permit required.

19.32.020 Private—Permit required.

19.32.010 Public—Permit required. Before commencing the installation of a public
swimming pool, a permit authorizing plumbing, mechanical and drainage work shall be obtained
from the plumbing inspector. The application for a permit shall be accompanied by plans and
specifications together with written approval from the State Board of Health, copies of which shall
be filed with the plumbing inspector. (Ord. 61-4380 §l(part), 1978.)

19.32.020 Private—Permit required. Before commencing the installation of a private
residential swimming pool, a permit authorizing plumbing, mechanical and drainage work shall be
obtained from the plumbing inspector. The application for a permit shall be accompanied by plans
and specifications showing the following in sufficient detail:

(a)	Pool dimensions and volume of water in gallons;

(b)	Type and size of filter system, filtration and backwash capabilities;

(c)	Pool piping layout, showing pipe sizes, valves and type of materials;

(d)	The rated capacity and head at filtration and backwash flows of the pool pump in
gallons per minute with size and type of motor;

(e)	Location and type of waste water disposal system. (Ord. 61-4380 §l(part), 1978.)

19.20

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Wausau Municipal Code

Chapter 19.36
INDIVIDUAL SEWAGE DISPOSAL SYSTEMS

Sections:

19.36.010 Allowable use.

19.36.020 Permit required—Restrictions.

19.36.030 Application for permits.

19.36.040 Construction.

19.36.050 Minimum size lots.

19.36.060 Industrial and commercial establishments.

19.36.070 Sewer system available.

19.36.010 Allowable use. Individual sewage disposal systems may be constructed where
no public sewage system is available or likely to become available within a reasonable time. (Ord.
61-4380 §1 (part), 1978.)

19.36.020 Permit required—Restrictions, (a) Permit to construct an individual sewage
disposal system shall be obtained from the plumbing inspector.

(b) No permit to construct a private sewage disposal system shall be granted without
written approval from the board of public works and the water and sewerage utility commission.
(Ord. 61-4380 §l(part), 1978.)

19.36.030 Applications for permits. Applications for permits shall be in writing and include
the following:

(a)	Name and address of applicant;

(b)	Legal description of property;

(c)	Percolation test as required in Sections H62 and H65 of the Wisconsin Administrative

Code;

(d)	Complete plan of the proposed facility showing the location and size of all proposed -
disposal facilities, location of water supplies, buildings and lot lines. (Ord. 61 -4380 § 1 (part), 1978.)

19.36.040 Construction. The entire disposal system shall comply with Section H62 of the
Wisconsin Administrative Code. (Ord. 61-4380 §l(part), 1978.)

19.36.050 Minimum size lots. Under the absorption field requirements, it is apparent that
in some areas individual sewage disposal systems cannot be used unless more than one lot is made
available for this purpose, or alternate lots are held vacant until such time as public sewer systems
have been installed, at which time additional construction on the remaining lots could be permitted.
(Ord. 61-4380 §l(part), 1978.)

19.21

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Wausau Municipal Code

19.36.060 Industrial and commercial establishments. Individual sewage disposal systems
as defined in this chapter involving septic tanks and absorption field shall be permitted for industrial
and commercial establishments. Private disposal systems for such uses shall be by design of a
competent registered engineer specializing in sanitation, plans for the installation having been
approved by state and local authorities. (Ord. 61-4380 §l(part), 1978.)

19.36.070 Sewer system available. Private systems for sewage disposal shall be.
discontinued within one year after public sewers become available. The building sewer shall be
discontinued from the old system and be reconnected with the public sewer. All abandoned septic
tanks and seepage pits shall have the contents removed and shall be immediately filled with sand,
gravel, or similar material. (Ord. 61-4380 §1 (part), 1978.)

19.22

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Wausau Municipal Code

Chapter 19.40
CROSS-CONNECTION TO WATER SERVICE

Sections:

19.40.010 Cross-connection regulations—Municipal code.

19.40.020 Enforcement authority.

19.40.030 State provisions adopted.

19.40.010 Cross-connection regulations—Municipal code. See Chapter 13.13 of this code.
(Ord. 61 -4666 § 1 (part), 1989.)

19.40.020 Enforcement authority. The plumbing inspector has the full authority and
responsibility to enforce Chapter 13.13 of this code and the State Plumbing Code with reference to
cross-connections. (Ord. 61-4666 § 1 (part), 1989.)

19.40.030 State provisions adopted. The city adopts by reference the State Plumbing Code
of Wisconsin, Chapter ILHR 82 of the Wisconsin Administrative Code concerning cross-
connections. (Ord. 61-4666 §l(part), 1989.)

19.23

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Wausau Municipal Code

Chapter 19.44
SPF.CIAL PROVISIONS

Sections:

19.44.010 Connections to water distribution system.

19.44.020 Trailer wastes.

19.44.030 Abandoned water and sewer service.

19.44.040 Parking lots and surface drains.

19.44.050 Catch basins and receptacles.

19.44.060 Subsoil or footing drains.

19.44.070 Catch basin ejectors.

19.44.080 Sump pumps.

19.44.090 Roof drains.

19.44.100 Mobile home and trailer camp regulations.

19.44.010 Connections to water distribution system. No valve or connection of any kind
shall be tapped into the wall of any domestic water pipe, nor shall any saddle type of connection
device be used except on a valved branch provided for this purpose. (Ord. 61-4380 §1 (part), 1978.)

19.44.020 Trailer wastes. No person shall discharge the effluent from any trailer privy or
disposal collector used in trailers for human habitation into any plumbing fixture not specifically
designed for the reception of such effluent. (Ord. 61-4380 §l(part), 1978.)

19.44.030 Abandoned water and sewer service. Before a building is moved or demolished,
the water services and building sewers shall be located at the property line. The water service and
sewer shall be sealed off in the presence of the plumbing inspector. The plugs or seals shall not be
covered until an approval has been given by the plumbing inspector. (Ord. 61-4380 §1 (part), 1978.)

19.44.040 Parking lots and surface drains, (a) All parking lots shall meet the requirements
of Chapter 15.52 of this code, and shall be provided with adequate yard drainage. Where a storm
sewer is available and the lot is greater than seven thousand five hundred square feet in area, the lot
shall be provided with interior yard drainage and shall be connected to the storm sewer. In all cases,
drainage shall be to a terminal designated and approved by the city engineer and the plumbing
inspector.

(b)	The size of the storm sewer serving a parking lot shall be determined by the area to
be drained and be approved by the city engineer.

(c)	Catch basins and grate areas shall be to the standards of the city specifications. (Ord.
61-4739 §1, 1991; Ord. 61-4380 § 1 (part), 1978.)

19.44.050 Catch basins and receptacles. All storm or clearwater drain pipes that must be
left open to drain basement areas, yards, gardens or other places shall be connected with suitable
catch basins of brick, vitrified clay pipe, concrete or other suitable substance, the bottom of which

19.24

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Wausau Municipal Code

shall not be less than one-half foot below the bottom of the outlet pipe. Every such catch basin or
receptacle shall be placed inside the lot line of the lot or lots to be drained. The installation of such
basins or connections shall have the approval of the plumbing inspector and city engineer. (Ord.
61-4380 §1 (part), 1978.)

19.44.060 Subsoil or footing drains. Where footing or subsoil drains are installed without
or within the walls or footings of any building, they shall be discharged to an accessible catch basin
not less than eighteen inches deep and twelve inches in diameter. The rim of such catch basin shall
terminate not less than two inches above the basement floor and shall be located not less than ten
feel from any building drain or branch. No catch basin will be required when footing or subsoil
drains can be discharged to the storm sewer, a seepage pit or to the ground surface by gravity;
provided, that the discharge point is within the property boundaries or to a public gutter and that no
hazard or nuisance is created. (Ord. 61-4380 §l(part), 1978.)

19.44.070 Catch basin ejectors. When there are indications that indoor catch basins
receiving the discharge of subsoil drains will discharge indirectly to the sanitary sewer, a sump
pump,'or ejector shall be installed to elevate the contents of the basin to a proper discharge point.
(Ord. 61-4380 §1 (part), 1978.)

19.44.080 Sump pumps. All sump pumps installed for the purpose of discharging clear
waters from foundation drains and ground infiltration and where the building is not serviced by
gravity shall either discharge into an underground conduit leading to a drainage ditch, gutter, dry
well, or shall discharge onto the ground at least one foot or more out from the building and above
permanent grade in such manner as not to create a nuisance. No sump discharge shall be allowed
to flow on or across a public sidewalk. The discharge pipe shall not be reduced in size from the
discharge opening left by the manufacturer. The discharge pipe from the pump opening to the
outside of the building shall be rigidly secured. (Ord. 61-4380 §1 (part), 1978.)

19.44.090 Roof drains. Roof drains may discharge on the ground, provided such discharge
does not create a nuisance. (Ord. 61-4380 §l(part), 1978.)

19.44.100 Mobile home and trailer camp regulations, (a) Mobile home parks shall be
served by a private main sanitary sewer connected to the municipal sanitary sewer system. The
connection from an individual mobile home to the private main sanitary sewer shall be adequately
trapped and vented to conform with regulations set forth by state and local authorities.

v

(b) The size of the water service for a mobile home and trailer camp shall be determined
by the number of units served and shall conform to the recommendations of the municipal water
department superintendent, and the plumbing inspector. (Ord. 61-4380 §l(part), 1978.)

19.25

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Wausau Municipal Code

[INTENTIONALLY BLANK]

\

)

I

19.26

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Wausau Municipal Code

Chapter 19.48
INSURANCE

Sections:

19.48.010 Required.

19.48.020 Exceptions.

19.48.010 Required. Before permits are issued, each master plumber shall have in full force
and effect public liability insurance in the amount of one hundred thousand dollars for each injury,
three hundred thousand dollars personal injury for each accident and one hundred thousand dollars
property damage and Workmen's Compensation insurance. Certificates of such insurance shall be
filed with the city clerk, together with a statement by the insurance company, showing that such
policies will not be canceled without extending ten days' written notice to the city clerk. No permits
shall be lawfully issued and no plumbing work shall be installed or worked on unless such policies
are in full force and effect. (Ord. 61-4380 §l(part), 1978.)

19.48.020 Exceptions. The requirements of section 19.48.010 of this chapter shall not apply
to installed plumbing manufactured for shipment out of the city, to property owners or to licensed
and registered maintenance plumbers obtaining permits for plumbing work within the complex of
their employers business enterprise only. Section 19.48.010 shall apply to any work performed in
a public right-of-way. (Ord. 61-4380 §l(part), 1978.)

19.27

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Wausau Municipal Code

Chapter 19.52
PENALTIES

Sections:

19.52.010 Penalty for violation.

19.52.010 Penalty for violation. Any person who violates any provision of this title shall
be subject to a penalty as provided in section 1.01.110 of this code. Each violation and each day on
which a violation of any provision of this title occurs or continues shall constitute a separate offense.
(Ord. 6M380 §l(part), 1978.)

19.28

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3/23/2020

WDNR BRRTS on the Web

Wisconsin Department of Natural Resources

Environmental Cleanup & Brownfields Redevelopment

	i

BRRTS on the Web

Click the Location Name or FID below to view Location Details page for this Activity. Other
Activities, if present, may be accessed from Location Details.

< Basic Search

CONTINUING OBLIGATIONS APPLY

Due to remaining contamination, continuing obligations apply to one or more properties. For information
specific to the continuing obligations review the documentation below. Prior to constructing or
reconstructing a water supply well, you need to contact DNR for approval of well construction
specifications.

IMPACTED ANOTHER PROPERTY OR RIGHT-OF-WAY

A hazardous substance discharge originating from this property has impacted one or more other
properties or right-of-ways (ROWS). For more information, please review the documents below. Certain
exemptions regarding the cleanup of impacted properties under Wisconsin Stat. Section 292.13 may
apply.

02-37-000017 WAUSAU GW CONTAMINATION (SF NPL)

Location Name

(Click Location Name or FID to View Location Details)

County

WDNR Region

|WAUSAU CTY WELL FIELD SUPERFUND

MARATHON

WEST CNTRL

Address

Municipality

|E RANDOLPH & CHERRY STS

WAUSAU

PLSS Description

Latitude

Longitude

Google
Maps

RR Sites Map

|NE 1/4 of the SE 1/4 of Sec 23, T29N, R07E 44.977785

-89.633284 click to view

CLICK TO VIEW

Additional Location Description

Size (Acres)

Facility ID

I

UNKNOWN

737105820

Jurisdiction

PECFA No.

EPA Cerclis ID

Start Date

End Date

Last Action

DNR RR



WID980993521

1983-02-15



2019-09-26

Characteristics

PECFA
Tracked?

EPA NPL

Site?

EPA
Superfund?

PECFA Funds
Eligible?

Above
Ground
Tank?

Drycleaner?

Co-

Contamination?

Wl DOT Site?

COs Apply?

No

Yes

No

No

No

No

No

No

Yes

Actions

https:

://dnr.wi.gov/botw/GetActivityDetail.do?siteld=1103700&adn=0237000017

1/8

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3/23/2020

WDNR BRRTS on the Web

Place Cursor Over Action Code to View Description

Date

Code

Name |Comment |

1983-02-15

1

Notification of Hazardous Substance Discharge



1983-02-15

301

Superfund NPL, NPL Proposed or Alternative
Approach Site

301 DATE BASED ON FINAL NPL
LISTING DATE

1984-03-05

350

Superfund Site Assessment Preliminary
Assessment (PA)



1986-06-10

99

Miscellaneous

NPL LISTING

1988-12-01

99

Miscellaneous

ROD INTERIM

1989-09-01

99

Miscellaneous

ROD

1989-09-02

99

Miscellaneous

RO CONSENT DECREE

1990-03-01

99

Miscellaneous

REMEDIAL DESIGN COMPLETE

1991-01-01

99

Miscellaneous

RA CONSENT DECREE

1992-01-01

211

Operation & Maintenance Start - State Lead



1997-01-13

99

Miscellaneous

E. BANK SVE CLOSURE RPT

1997-03-17

99

Miscellaneous

DNR COMMENTS RE SVE
CLOSURE. ADD'L WORK
NEEDED.

1999-03-11

43

Site Activity Status Update Received

MONTHLY STATUS REPORT #95

1999-04-12

43

Site Activity Status Update Received

MONTHLY PROGRESS REPORT
#96

1999-07-09

43

Site Activity Status Update Received



1999-08-11

43

Site Activity Status Update Received

JULY

1999-08-24

43

Site Activity Status Update Received



1999-08-31

99

Miscellaneous

MWS WC6A, WC6, TCT44 AND
E30 ABANDONED.

1999-09-15

43

Site Activity Status Update Received



1999-10-15

43

Site Activity Status Update Received



1999-11-12

43

Site Activity Status Update Received

OCTOBER

1999-12-14

43

Site Activity Status Update Received

NOVEMBER

2000-01-11

99

Miscellaneous

DECEMBER 1999 STATUS

2000-02-07

43

Site Activity Status Update Received



2000-03-10

43

Site Activity Status Update Received

FEBRUARY 2000

2000-04-07

43

Site Activity Status Update Received

MARCH 2000

2000-04-26

99

Miscellaneous

EPA COMMENTS ON GW
MONITORING PLAN

2000-05-10

43

Site Activity Status Update Received

APRIL 2000

2000-06-14

43

Site Activity Status Update Received

MAY 2000

2000-07-10

99

Miscellaneous

FIVE YEAR REVIEW REPORT

2000-07-14

43

Site Activity Status Update Received



2000-07-30

24

Long Term Monitoring Plan Received (non-Fee)



2001-01-10

99

Miscellaneous

REQUEST FOR SEASONAL
SHUTDOWN OF SVE

2001-03-14

99

Miscellaneous

2000 ANNUAL REPORT

2001-11-07

99

Miscellaneous

SITE VISIT AT WAUSAU CHEM.

https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

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3/23/2020

WDNR BRRTS on the Web

2002-03-06

43

Site Activity Status Update Received

4 Q. EW1 REPORT.

2002-03-11

99

Miscellaneous

SOIL SAMPLE REPORT.
REQUEST TO SHUT DOWN SVE.

2002-04-12

43

Site Activity Status Update Received

1 Q. EW1 REPORT.

2002-04-17

99

Miscellaneous

DNR REQUEST FOR GW REPORT

2002-05-29

.43

Site Activity Status Update Received



2002-07-12

43

Site Activity Status Update Received

PROGRESS REPORT ON EW1

2002-10-02

99

Miscellaneous

MEETING AT SITE

2002-11-04

43

Site Activity Status Update Received

RPT ON EW-1

2002-11-04

99

Miscellaneous

EW1 3RD QRT REPORT

2002-11-15

99

Miscellaneous

CRA PROPOSAL FOR GW
MONITORING OF SVE SHUT OFF
@ WCC

2002-11-26

99

Miscellaneous

DNR COMMENTS TO EPA

2002-12-02

99

Miscellaneous

AGENCY'S LETTER RE WAUSAU
CHEM P&T

2002-12-02

99

Miscellaneous

AGENCY'S APPROVAL OF EAST
SVE MONITORING PLAN

2003-02-07

99

Miscellaneous

02 4TH QRT. EW1 REPORT

2003-04-14

43

Site Activity Status Update Received



2003-08-15

99

Miscellaneous

EW1 DISCHARGE RPT

2003-10-15

43

Site Activity Status Update Received

GW P & T STATUS

2004-04-22

43

Site Activity Status Update Received

1ST QRT 2004 P&T RPT

2004-04-23

43

Site Activity Status Update Received

2003 GW MON RPT

2004-07-16

99

Miscellaneous

DISCHARGE MONITORING
REPORT

2004-11-01

99

Miscellaneous

QRTLY RPT ON EW-1

2005-01-21

99

Miscellaneous

4TH QRT 2004 - EWI DISCHARGE
REPORT

2005-06-30

99

Miscellaneous

5 YEAR REVIEW SIGNED

2005-08-15

43

Site Activity Status Update Received

ANNUAL MONITORING REPORT

2005-11-14

43

Site Activity Status Update Received

EW 1 REPORT RECEIVED

2006-02-06

43

Site Activity Status Update Received

QUARTERLY GWE REPORT

2006-04-13

99

Miscellaneous

DRAFT DEED RESTRICTION &
DEEDS FOR WAUSAU CHEMICAL
PROPERTY REC'D

2006-04-25

99

Miscellaneous

EWI DISCHARGE REPORT

2006-12-05

99

Miscellaneous

SITE VISIT & MEET EPA &
MARATHON ELECTRIC.

2007-04-26

99

Miscellaneous

DEED RESTRICTION AT WAUSAU
CHEMICAL RECORDED.

2007-08-31

99

Miscellaneous

DEED RESTRICTION FOR
WAUSAU CHEMICAL REC'D.

2007-09-26

99

Miscellaneous

USEPA WITH WDNR CONCUR
APPROVAL TO CLOSE EAST
BANK SVE SYSTEM.

https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

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3/23/2020

WDNR BRRTS on the Web

2008-04-18

43

Site Activity Status Update Received

2005-06 GW REPORT.

2008-09-02

43

Site Activity Status Update Received

EW1 REPORT

2008-10-24

43

Site Activity Status Update Received

3RD QUARTER 2008 DMR

2009-02-27

43

Site Activity Status Update Received

2007 ANNUAL MONTIROING
REPORT.

2009-04-23

43

Site Activity Status Update Received

FIRST QUARTER PROGRESS
REPORT

2009-06-22

43

Site Activity Status Update Received

2008 ANNUAL REPORT

2009-07-06

43

Site Activity Status Update Received

2ND QTR EW1 TREATMENT &
DISCHARGE RESULTS REC'D.

2009-11-09

43

Site Activity Status Update Received

3RD QTR EW1 TREATMENT &
DISCHARGE RESULTS REC'D.

2010-01-15

43

Site Activity Status Update Received

4TH QTR EW1 TREATMENT &
DISCHARGE RESULTS REC'D.

2010-03-08

43

Site Activity Status Update Received

2009 ANNUAL MONITORING
REPORT

2010-04-09

326

Superfund Five Year Review Report Signed



2010-04-16

43

Site Activity Status Update Received

FIRSTS QTR 2010 EWI
TREATMENT & DISCHARGE
RESULTS REC'D.

2010-07-19

43

Site Activity Status Update Received

SECOND QUARTER 2010 EW1
TREATMENT & DISCHARGE
RESULTS REC'D.

2010-07-29

236

Continuing Obligation - Residual GW Contamination



2010-07-29

.50

GIS Registry Site



2010-07-29

149

Remedial Action (RA) Design Report Approved



2010-07-29

220

Continuing Obligation - Soil at Industrial Levels



2010-07-29

222

Continuing Obligation - Maintain Cap Over
Contaminated Area



2010-07-29

224

Continuing Obligation - Structural Impediment to
Cleanup



2010-07-29

228

Continuing Obligation - Site Specific Condition

GW PUMP & TREAT ON
MARATHON ELECTRIC COP
PARCEL.

2010-07-29

.56

Continuing Obligation(s) Applied



For Code 56:

20100729 56 CO Packet.pdf Click to Download or Open

2010-07-29

232

Continuing Obligation - Residual Soil Contamination



2010-10-14

43

Site Activity Status Update Received

3RD QTR 2010 EW1 TREATMENT
& DISCHARGE RESUTLS.

2010-11-03

99

Miscellaneous

SITE VISIT

2010-11-18

401

Historic Fill Case by Case Exemption Request (fee)

CK# 595883

2010-12-28

402

Historic Fill Case by Case Exemption Issued



2011-01-28

43

Site Activity Status Update Received

4TH QTR 2010 EW1 TREATMENT
& DISCHARGE RESULTS REC'D.

2011-04-05

43

Site Activity Status Update Received

2010 ANNUAL MONITORING
REPORT RECEIVED









https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

-------
3/23/2020

WDNR BRRTS on the Web

2011-07-26

43

Site Activity Status Update Received

1ST & 2ND QUARTER 2011 EW1
TREATMENT & DISCHARGE
RESULTS RECEIVED; NEW PUMP
& WELL REHAB

2011-09-07

130

DNR Regulatory Reminder Sent

Vapor Intrusion (VI) Assessment
Notification Ltr Sent

For Code 130:

0237000017

VI Letter.pdf Click to Download or Open

2011-10-19

43

Site Activity Status Update Received

3RD QRT2011 EW1 TREATMENT
& DISCHARGE RESULTS REC'D

2012-01-10

43

Site Activity Status Update Received

4TH QRT2011 EW1 TREATMENT
& DISCHARGE RESULTS REC'D

2012-04-05

43

Site Activity Status Update Received

1ST QTR 2012 EW- 1 TREATMENT
& DISCHARGE RESULTS REC'D

2012-04-25

43

Site Activity Status Update Received

2011 ANNUAL MONITORING RPT
REC'D

2012-05-03

99

Miscellaneous

EMAIL TO EPARPM
CONCURRING W/ CONSULTANT
RECOMMENDATIONS

2012-09-19

99

Miscellaneous

E24/E24A MW ABANDONMENT &
REPLACEMENT
DOCUMENTATION REC'D

2012-09-26

99

Miscellaneous

SITE VISIT W/EPARPM &
CONSULTANT

2012-10-10

99

Miscellaneous

EMAIL TO USEPA RPM FOLLOW
UP FROM SITE VISIT

2012-10-16

99

Miscellaneous

HISTORICAL GW RESULTS &
WELL LOGS REC'D FROM
CONSULTANT

2012-10-17

99

Miscellaneous

3RD QTR 2012 EW1 TREATMENT
& DISCHARGE RESULTS REC'D

2013-02-08

99

Miscellaneous

CONF CALL W/EPA,
CONSULTANT RE: EW1
SHUTDOWN

2013-03-01

99

Miscellaneous

DRAFT EVALUATION EW1
SHUTDOWN REC'D

2013-03-15

99

Miscellaneous

CONF CALL W/EPA,
CONSULTANT RE: EW1
SHUTDOWN

2013-04-23

43

Site Activity Status Update Received

2012 ANNUAL MONITORING
REPORT REC'D

2013-04-24

43

Site Activity Status Update Received

1ST QTR 2013 EW-1 TREATMENT
& DISCHARGE RESULTS REC'D

2013-04-26

99

Miscellaneous

CONF CALL W/EPA &
CONSULTANT

2013-04-26

99

Miscellaneous

COMMENTS PROVIDED ON
DRAFT EW1 PILOT STUDY
PROPOSAL

2013-05-17

99

Miscellaneous

CONF CALL W/EPA &

https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

-------
3/23/2020	WDNR BRRTS on the Web







CONSULTANT

2013-05-20

99

Miscellaneous

REQUEST TO ABANDON WC-3
REC'D

2013-05-31

99

Miscellaneous

HISTORICAL GW DATA REC'D

2013-06-05

99

Miscellaneous

DRAFT PILOT STUDY PROPOSAL
REC'D

2013-06-06

99

Miscellaneous

RESPONSE TO COMMENTS
REC'D

2013-06-18

99

Miscellaneous

CONF CALL W/EPA &
CONSULTANT

2013-09-09

99

Miscellaneous

EW1 SHUTDOWN PILOT STUDY
WORK PLAN REC'D

2014-01-31

99

Miscellaneous

CONF CALL TO DISCUSS SITE
REDEVELOPMENT PLANS

2014-02-11

43

Site Activity Status Update Received

2013 ANNUAL MONITORING RPT
REC'D

2014-03-06

99

Miscellaneous

MEETING W/CITY OF WAUSAU
TO DISCUSS REDEVELOPMENT
OF WAUSAU CHEMICAL
PROPERTY

2014-03-19

99

Miscellaneous

CONF CALL W/ EPA TO DISCUSS
REDEVELOPMENT OF WAUSAU
CHEMICAL PROPERTY

2014-04-07

99

Miscellaneous

LETTER TO CITY OF WAUSAU &
EPA ADDRESSING
REDEVELOPMENT OF WAUSAU
CHEMICAL PROPERTY

2014-05-01

43

Site Activity Status Update Received

EW1 SHUTDOWN PILOT STUDY
1ST QTR RESULTS REC'D

2014-05-16

401

Historic Fill Case by Case Exemption Request (fee)

CH# 900262349

2014-05-19

402

Historic Fill Case by Case Exemption Issued

CASE BY CASE EXEMPTION
APPROVAL LTR ISSUED. WPS
POLE INSTALLATION ON FMR LF

2014-07-25

99

Miscellaneous

REC'D REQUEST TO ABANDON
E23A

2014-07-28

43

Site Activity Status Update Received

EW1 SHUTDOWN PILOT STUDY
2ND QTR RESULTS REC'D

2014-10-21

43

Site Activity Status Update Received

E23A WELL ABANDONMENT
REPORT RECEIVED

2014-10-29

43

Site Activity Status Update Received

WAUSAU GW
CONTAMINATION/EW1
SHUTDOWN PILOT STUDY 3RD
QTR RESULTS REC'D

2015-03-05

43

Site Activity Status Update Received

ANNUAL RPT AND EW1 PILOT
STUDY 2014

For Code 43:

03052015 43 Ann Ftot and EW1 Pilot Studv Ftot 2014.pdf click to Download or ooen

2015-03-05

43

Site Activity Status Update Received

2014 ANNUAL MONITORING
REPORT









https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

-------
3/23/2020

WDNR BRRTS on the Web

2015-09-08

305

Superfund Enforcement Documents - See
Description

LIMITED SI RESULTS RECEIVED
FROM WAUSAU CHEMICAL
PROPERTY

2016-03-07

43

Site Activity Status Update Received

2015 ANN MONITORING REPORT
REC

2016-03-24

35

Site Investigation Workplan (SIWP) Received (non-
fee)

VI EVAL WORK PLAN RECD

2016-10-13

43

Site Activity Status Update Received

REVISED 2015 ANNUAL
MONITORING REPORT REC

2017-03-03

35

Site Investigation Workplan (SIWP) Received (non-
fee)

REVISED VI EVAL WORK PLAN
RECD

2017-04-19

43

Site Activity Status Update Received

2016 ANNUAL MONITORING RPT

For Code 43:

20170419 43 Annual RDt.pdf Click to Download or Open I

2017-05-23

99

Miscellaneous

SUB-SLAB & IA SAMPLING
RESULTS SENT TO RESIDENTS

For Code 99:

20170523 99 Sub Slab Air Results.pdf Click to Download or Open I

2017-11-15

99

Miscellaneous

SITE VISIT & MTG W/USA EPA &
CONSULTANT

2018-01-18

43

Site Activity Status Update Received

EW SHUTDOWN PILOT STUDY
ADDENDUM

For Code 43:

20180118 43 EW1 Pilot Shutdown Studv Addendum.pdf click to Download or ooen I

2018-01-26

195

Semi-Annual/PECFA Cost Reoortina (NR700)

Period: 7/1/2017- 12/31/2017

Requirement Met

Click 195 Action Name above to view NR700.11 report

2018-02-28

43 Site Activity Status Update Received 2017 ANN MONITORING RPT

For Code 43:

20180228 43 GW Monitorina RDt Ann 2017.pdf Click to Download or Open

2018-07-09

195

Semi-Annual/PECFA Cost Reoortina (NR700)

Period: 1/1/2018-6/30/2018

Reauirement Met

Click 195 Action Name above to view NR700.11 report

2018-07-25

43

Site Activity Status Update Received

EW1 SHUTOWN PILOT STUDY
ADDENDUM

For Code 43:

20180725 Draft EW1 Shutdown Pilot Studv Addendum.pdf click to Download or ooen I

2018-11-02

99

Miscellaneous

REQUEST FOR ACCESS LTRS (5) |

For Code 99:

20181102 99 REQUEST FOR ACCESS LTRS 20181031. Ddf Click to Download or Open I

2018-11-02

99

Miscellaneous

SUB-SLAB/INDOOR AIR RESULTS
LTRS (5)

For Code 99:

20181102 99 SS IA RESULTS LTRS 20181031.pdf Click to Download or Open I

2019-01-03

195

Semi-Annual/PECFA Cost Reoortina (NR700)

Period: 7/1/2018- 12/31/2018

Requirement Met

Click 195 Action Name above to view NR700.11 report

2019-05-06

99 Miscellaneous DRAFT EW-1 SHUTDOWN RPT

For Code 99:

20190506 99 DRAFT EW1 SHUTDOWN RPT. pdf Click to Download or Open

2019-05-06

43

Site Activity Status Update Received

EW-1 SHUTDOWN PILOT STUDY
REPORT

For Code 43:

20190506 43 EW1 Pilot Shutdown RPT.Ddf Click to Download or Open I

2019-05-09

43

Site Activity Status Update Received

EW-1 SHUTDOWN PILOT STUDDY
ADDENDUM

https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

-------
3/23/2020

WDNR BRRTS on the Web

For Code 43:

20190509 43 EW1 Pilot Shutdown Adden.pdf click to Download or ooen I

2019-09-26

99

Miscellaneous

NOTICE OF PURCHASE
AGREEMENT - WAUSAU
CHEMICAL AND CITY OF
WAUSAU

For Code 99:

20190926 9S

3 Wausau Chem Purchase.pdf Click to Download or ODen I

Other Documents and Images
Not Linked to Actions Above
Click File Name to Download or Open

Category

File Name or URL Description

Website URL

Wausau GWContam. EPA Superfund NPL/SAA Website

Substances

Substance

Type

Est Amt Released

Units

Chlorinated Solvents

voc





Perchloroethylene

voc





Chlorinated Solvents

voc





Volatile Organic Compounds

voc





Who

Role

Name/Address

Responsible Party

MARATHON COUNTY 500 FOREST ST WAUSAU, Wl 54403

Project Manager

MATT THOMPSON 1300 W CLAIREMONT AVE EAU CLAIRE. Wl 54701

BRRTS data comes from various sources, both internal and external to DNR. There may be omissions and
errors in the data and delays in updating new information. Please see the disclaimers page for more
information. We welcome your Feedback.

The Official Internet site for the Wisconsin Department of Natural Resources

101 S. Webster Street. PO Box 7921 . Madison, Wisconsin 53707-7921 . 608.266.2621

dmwi.^OV

Release 2.8.7 | 12/15/2019 | Release Notes

https://dnr.wi.gov/botw/GetActivityDetail.do7sitelcM 103700&adn=0237000017

8/8

-------
Ongoing Cleanups with Continuing Obligations

Cover Sheet

April, 2010
(RR 5391)

Purpose

This cover sheet summarizes continuing obligations regarding environmental conditions on this property. Continuing obligations are legal
mechanisms that:

1)	Require or restrict certain actions to protect human health or the environment.

2)	Minimize human and natural resource exposure to contamination, and/or

3)	Give notice of the existence of residual contamination

Learn more about continuing obligations at http://dnr.wi.gov/org/aw/rr/cleanup/obligations.htm

DNR Property Information:

DNR Approval Date:

Sep 29, 1989

BRRTS #:

ACTIVITY NAME:
PROPERTY ADDRESS:
MUNICIPALITY:

PARCEL ID #:

02-37-000017

FID#:

737105820

Wausau Groundwater Contamination Superfiind

SE corner E. Randolph St. & Cherry St., and SE corner Wausau Ave. & N. River Dr.

Wausau

291-2907-252-0990,291-2907-252-0997

X:

*WTM COORDINATES:

Y:

548901

500533

VVTM COORDINATES REPRESENT:

(• Approximate Center Of Continuing Obligations
C Approximate Source Parcel Center

* Coordinates are in WTM83, NAD83 (1991)

Please use the CLEAN system at http://dnr.wi.gov/org/aw/rr/clean.htm for additional DNR site information.
EPA Superfund Information (if applicable):

To view more information click on the EPA ID.

EPA ID:

WID980993521

SITE NAME: Wausau Ground Water Contamination

Requirements for all properties with Continuing Obligations

1.	Properly manage contaminated soil if it is excavated. Sample and arrange appropriate treatment or disposal.

2.	DNR approval is required if a water supply well will be constructed or reconstructed.

Site-Specific Requirement(s) - (BRRTS Action Code)

|X A "cap" over the contaminated area must be: (222)

I- Constructed & Maintained (X Maintained

|~ A vapor mitigation system must be: (226)

|~ Constructed & Maintained	Maintained

r The need for vapor control technology must be evaluated
if a building will be constructed. (228)

K The approved soil cleanup level is suitable for
industrial use of the property. (220)

I- DNR has approved construction on an abandoned landfill
and certain maintenance requirements apply. (402) or (404)

(X A structural impediment (e.g. building) is present which
inhibited investigation/cleanup. Further environment work
may be required if the impediment is removed. (224)

I- DNR has directed a local government unit (LGU) to take an
action and a LGU liability exemption applies. This
exemption does not transfer to future private owners. (230)

(X Another type of continuing obligation has been established
in DNR's remedial action plan approval. (228)

Explain:

Groundwater pump and treat system in operation on
Marathon Electric Corporation parcel, will need to be
inspected and maintained.

-------
Appendix H

VOC Analytical Results in Water Effluent at the Wausau Water Supply (2018/2019) and
CityWater Supply Well CW-3 VOC Concentration Trend

-------
S5SSKSSEL. VOLATILE ORGANIC ANALYSES

1300 W. Clairemont Ave.

Eau Claire, WI 54701	(ENCLOSE FORM WHEN SENDING SAMPLE TO LAB)	Rev: 02/18

^ectionL_To_becomDleted_bvttie^eDartmentofNaturalResources/SAMPLE^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^_

System Name: WAUSAU WATERWORKS	S(Checkone) MC— NN_ OC	TN	

System ,, ,	Region

Address: 407 GRANT ST	City: WAUSAU	 County: 37 - Marathon	C^dc, 6

Entry Point WI Unique

PWS id#: 73701023		ID: 200 WeU ^Q.	DNR Contact: GLENN FALKOWSKI (715) 359-5284	

Sampler Phone/Name/Address (Notify DNR Contact of Corrections)
(715) 571-7752

WATER SUPERINTENDENT SCOTT BOERS
407 GRANT STREET
WAUSAU WI 54403

Sampler: Provide information to have results faxed or e-mailed or to
change a billing address, if your lab offers these services (leave blank if
you don't use these services).

Fax number:

E-mail:

Billing address:



Sample Source:	Sample Type:

W Well	X D Compliance Sample

X E Entry Point		 C Confirmation Sample

	D Distribution System		 1 Investigation Sample

W Raw Water Sample

Special Instructions:	

Collect sample between: 01 /01 /2018 and 09 /30 /2018
Section II: To be completed by SAMPLER - ALL ITEMS REQUIRED

Sample Collection Date: 	I I	 Time.	:	~ a.m.

mm dd yyyy	Up.m.

Address where sample was collected: 	

Monitoring Point ID:	Sample Point Description;	

First Initial and

Last Name of Sampler: 	 " 	 Sampler Phone: 	

Section III: To he completed by LAB. Report test results on hack for PWS and electronically to DNR w ithin 10 days per NR 809.80

D Check here if some or all of the parameters were analyzed by a subcontracted lab.

NOTE: A separate form must be completed by each lab with data for only the parameters which that lab analyzed.

Laboratory	Laboratory

ID Number:		Name: 	

Date Sample	Time Sample	Laboratory

Received:	/ /		Received:	:		Sample ID:	

Signature of	Date Reported

Receiving Lab Official: 	 to PWS:	/ /

Condition of

Sample Upon Receipt: 	

Notice: This form must be submitted with laboratory samples analyzed to determine compliance with ch. NR 809, Wis. Adm. Code, Safe Drinking Water. Completion of this
form or a similar form approved by the Department is mandatory. Failure to submit a completed form to the Department is a violation punishable by a forfeiture of no less
than $10 nor more than $5000, or by a fine of not less than $10 nor more than $100 or imprisonment of not less than 30 days, or both. Each day of continued violation is a
separate offense (ss. 144.99, Wis. Stats.). Authorization for these requirement is under s. 280.13(d), Wis. Stats, and ch. NR 809.80. Personally identifiable information on
this form will be used for no other purpose.

-------
VOLATILE ORGANIC ANALYSES	System Name: WAUSAU WATERWORKS

This page to be completed by the laboratory performing analysis.	^3701023

-Lcib o3.Hipl6 ID! 	

Storet
Code

Parameter

SDWA
Method

MDL

Results

MCL

Units

34030



BENZENE







5

UG/L

81555



BROMOBENZENE









UG/L

32101



BROMODICHLOROMETHANE







80

UG/L

32104



BROMOFORM







80

UG/L

34413



BROMOMETHANE









UG/L

32102



CARBON TETRACHLORIDE







5

UG/L

34311



CHLOROETHANE









UG/L

32106



CHLOROFORM







80

UG/L

34418



CHLOROMETHANE









UG/L

77275



O-CHLOROTOLUENE









UG/L

77277



P-CHLOROTOLUENE









UG/L

32105



DIBROMOCHLOROMETHANE







80

UG/L

77596



DIBROMOMETHANE









UG/L

34566



1,3-DICHLOROBENZENE (M-)









UG/L

34536



1,2-DICHLOROBENZENE (O-)







600

UG/L

34571



1,4-DICHLOROBENZENE (P-)







75

UG/L

34668



DICHLORODIFLUOROMETHANE









UG/L

34496



1,1 -DICHLOROETHANE









UG/L

34531



1,2-DICHLOROETHANE







5

UG/L

34501



1,1 -DICHLOROETHYLENE







7

UG/L

77093



1,2-DICHLOROETHYLENE CIS







70

UG/L

34546



1,2-DICHLOROETHYLENE, TRA







100

UG/L

34423



DICHLOROMETHANE







5

UG/L

34541



1,2-DICHLOROPROPANE







5

UG/L

77173



1,3-DICHLOROPROPANE









UG/L

77170



2,2-DICHLOROPROPANE









UG/L

77168



1,1 -DICHLOROPROPENE









UG/L

34561



1,3-DICHLOROPROPENE









UG/L

34371



ETHYL BENZENE







700

UG/L

81688



ETHYLENE GYLCOL











71880



FORMALDEHYDE











34391



HEXACHLOROBUTADIENE









UG/L

77223



ISOPROPYLBENZENE









UG/L

77356



ISOPROPYLTOLUENE P









UG/L

77885



METHANOL











78032



METHYL T-BUTYL ETHER









UG/L

34301



CHLOROBENZENE







100

UG/L

34696



NAPHTHALENE









UG/L

77128



STYRENE







100

UG/L

77562



1,1,1,2 TETRACHLOROETHANE









UG/L

34516



1,1,2,2 TETRACHLOROETHANE









UG/L

34475



TETRACHLOROETHYLENE







5

UG/L

34010



TOLUENE







1000

UG/L

34551



1,2,4-TRICHLOROBENZENE







70

UG/L

34506



1,1,1 -TRICHLOROETHANE







200

UG/L

34511



1,1,2-TRICHLOROETHANE







5

UG/L

39180



TRICHLOROETHYLENE







5

UG/L

34488



TRICHLOROFLUOROMETHANE









UG/L

77443



1,2,3-TRICHLOROPROPANE









UG/L

81611



TRICHLOROTRIFLUOROETHANE









UG/L

77222



1,2,4-TRIMETHYLBENZENE









UG/L

77226



1,3,5-TRIMETHYLBENZENE









UG/L

39175



VINYL CHLORIDE







0.2

UG/L

79724



XYLENE TOTAL







10000

UG/L

77038



PROPYLENE GLYCOL









UG/L

Approved By: QA Officer: 	 Date:

Laboratory Manager: 	 Date:

Comments:	

03/23/20

-------
98965



1,3-PROPANEDIOL









MG/L

-------
S5SSKSSEL. VOLATILE ORGANIC ANALYSES

1300 W. Clairemont Ave.

Eau Claire, WI 54701	(ENCLOSE FORM WHEN SENDING SAMPLE TO LAB)	Rev: 02/18

^ectionL_To_becomDleted_bvttie^eDartmentofNaturalResources/SAMPLE^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^_

System Name: WAUSAU WATERWORKS	S(Checkone) MC— NN_ OC	TN	

System ,, ,	Region

Address: 407 GRANT ST	City: WAUSAU	 County: 37 - Marathon	C^dc, 6

Entry Point WI Unique

PWS id#: 73701023		ID: 300 WeU ^Q.	DNR Contact: GLENN FALKOWSKI (715) 359-5284	

Sampler Phone/Name/Address (Notify DNR Contact of Corrections)
(715) 571-7752

WATER SUPERINTENDENT SCOTT BOERS
407 GRANT STREET
WAUSAU WI 54403

Sampler: Provide information to have results faxed or e-mailed or to
change a billing address, if your lab offers these services (leave blank if
you don't use these services).

Fax number:

E-mail:

Billing address:



Sample Source:	Sample Type:

W Well	X D Compliance Sample

X E Entry Point		 C Confirmation Sample

	D Distribution System		 1 Investigation Sample

W Raw Water Sample

Special Instructions:	

Collect sample between: 01 /01 /2018 and 09 /30 /2018
Section II: To be completed by SAMPLER - ALL ITEMS REQUIRED

Sample Collection Date: 	I I	 Time.	:	~ a.m.

mm dd yyyy	Up.m.

Address where sample was collected: 	

Monitoring Point ID:	Sample Point Description;	

First Initial and

Last Name of Sampler: 	 " 	 Sampler Phone: 	

Section III: To he completed by LAB. Report test results on hack for PWS and electronically to DNR w ithin 10 days per NR 809.80

D Check here if some or all of the parameters were analyzed by a subcontracted lab.

NOTE: A separate form must be completed by each lab with data for only the parameters which that lab analyzed.

Laboratory	Laboratory

ID Number:		Name: 	

Date Sample	Time Sample	Laboratory

Received:	/ /		Received:	:		Sample ID:	

Signature of	Date Reported

Receiving Lab Official: 	 to PWS:	/ /

Condition of

Sample Upon Receipt: 	

Notice: This form must be submitted with laboratory samples analyzed to determine compliance with ch. NR 809, Wis. Adm. Code, Safe Drinking Water. Completion of this
form or a similar form approved by the Department is mandatory. Failure to submit a completed form to the Department is a violation punishable by a forfeiture of no less
than $10 nor more than $5000, or by a fine of not less than $10 nor more than $100 or imprisonment of not less than 30 days, or both. Each day of continued violation is a
separate offense (ss. 144.99, Wis. Stats.). Authorization for these requirement is under s. 280.13(d), Wis. Stats, and ch. NR 809.80. Personally identifiable information on
this form will be used for no other purpose.

-------
VOLATILE ORGANIC ANALYSES	System Name: WAUSAU WATERWORKS

This page to be completed by the laboratory performing analysis.	^3701023

-Lcib o3.Hipl6 ID! 	

Storet
Code

Parameter

SDWA
Method

MDL

Results

MCL

Units

34030



BENZENE







5

UG/L

81555



BROMOBENZENE









UG/L

32101



BROMODICHLOROMETHANE







80

UG/L

32104



BROMOFORM







80

UG/L

34413



BROMOMETHANE









UG/L

32102



CARBON TETRACHLORIDE







5

UG/L

34311



CHLOROETHANE









UG/L

32106



CHLOROFORM







80

UG/L

34418



CHLOROMETHANE









UG/L

77275



O-CHLOROTOLUENE









UG/L

77277



P-CHLOROTOLUENE









UG/L

32105



DIBROMOCHLOROMETHANE







80

UG/L

77596



DIBROMOMETHANE









UG/L

34566



1,3-DICHLOROBENZENE (M-)









UG/L

34536



1,2-DICHLOROBENZENE (O-)







600

UG/L

34571



1,4-DICHLOROBENZENE (P-)







75

UG/L

34668



DICHLORODIFLUOROMETHANE









UG/L

34496



1,1 -DICHLOROETHANE









UG/L

34531



1,2-DICHLOROETHANE







5

UG/L

34501



1,1 -DICHLOROETHYLENE







7

UG/L

77093



1,2-DICHLOROETHYLENE CIS







70

UG/L

34546



1,2-DICHLOROETHYLENE, TRA







100

UG/L

34423



DICHLOROMETHANE







5

UG/L

34541



1,2-DICHLOROPROPANE







5

UG/L

77173



1,3-DICHLOROPROPANE









UG/L

77170



2,2-DICHLOROPROPANE









UG/L

77168



1,1 -DICHLOROPROPENE









UG/L

34561



1,3-DICHLOROPROPENE









UG/L

34371



ETHYL BENZENE







700

UG/L

81688



ETHYLENE GYLCOL











71880



FORMALDEHYDE











34391



HEXACHLOROBUTADIENE









UG/L

77223



ISOPROPYLBENZENE









UG/L

77356



ISOPROPYLTOLUENE P









UG/L

77885



METHANOL











78032



METHYL T-BUTYL ETHER









UG/L

34301



CHLOROBENZENE







100

UG/L

34696



NAPHTHALENE









UG/L

77128



STYRENE







100

UG/L

77562



1,1,1,2 TETRACHLOROETHANE









UG/L

34516



1,1,2,2 TETRACHLOROETHANE









UG/L

34475



TETRACHLOROETHYLENE







5

UG/L

34010



TOLUENE







1000

UG/L

34551



1,2,4-TRICHLOROBENZENE







70

UG/L

34506



1,1,1 -TRICHLOROETHANE







200

UG/L

34511



1,1,2-TRICHLOROETHANE







5

UG/L

39180



TRICHLOROETHYLENE







5

UG/L

34488



TRICHLOROFLUOROMETHANE









UG/L

77443



1,2,3-TRICHLOROPROPANE









UG/L

81611



TRICHLOROTRIFLUOROETHANE









UG/L

77222



1,2,4-TRIMETHYLBENZENE









UG/L

77226



1,3,5-TRIMETHYLBENZENE









UG/L

39175



VINYL CHLORIDE







0.2

UG/L

79724



XYLENE TOTAL







10000

UG/L

77038



PROPYLENE GLYCOL









UG/L

Approved By: QA Officer: 	 Date:

Laboratory Manager: 	 Date:

Comments:	

03/23/20

-------
98965



1,3-PROPANEDIOL









MG/L

-------
Volatile Organics Sample 9/26/2019

Page 1 of 2

Wisconsin Department of Natural Resources

Public Drinking Water System Data

Volatile Organics Sample 9/26/2019	WAUSAU WATERWORKS (73701023)

Sample Group Volatile Organics

Source ID
Sample Date
Site ID
Sample Type
Sample Source
Sample Collector
Lab ID

Reason for No Results

200

9/26/2019
200

Compliance
Entry Point
DJENSEN
721026460

Sample ID
Well#
Sample Time
Sample Description
Reported Date
# Taken

Lab Name
Lab Comment

910

10/24/2019
1

Northern Lake Seivice Inc. (Crandon)

Sampling Results

Show All v entries

Filter:

Storet Code

2990
2993

2943
2942
2214

2982
2216
2941
2210

2965

2966

2944
2408

2967

2968

2969

2978
2980
2977
2380

2979
2964

2983

2412
2416
2410

2413
2992
2989
2996

2986
2988

2987

Description

BENZENE
BROMOBENZENE
BROMODICHLOROM ETHANE
BROMOFORM
BROMOMETHANE
CARBON TETRACHLORIDE
CHLOROETHANE
CHLOROFORM

CHLOROMETHANE (METHYLCHLORIDE)

O-CHLOROTOLUENE

P-CHLOROTOLUENE

DIBROMOCHLOROMETHANE

DIBROMOMETHANE

M-DICHLOROBENZENE

O-DICHLOROBENZENE

P-DICHLOROBENZENE

1,1 -DICHLOROETHANE

1,2-DICHLOROETHANE

1.1-DICHLOROETHYLENE
CIS-1,2-DICHLOROETHYLENE
TRANS-1,2-DICHLOROETHYLENE
DICHLOROMETHANE

1.2-DICHLOROPROPANE

1.3-DICHLOROPROPANE

2.2-DICHLOROPROPANE
1,1-DICHLOROPROPENE

1.3-DICHLOROPROPENE
ETHYLBENZENE

MONOCHLOROBENZENE (CHLOROBE..)
STYRENE

1,1,1,2-TETRACHLOROETHANE
1,1,2,2-TETRACHLOROETHANE
TETRACHLOROETHYLENE

Result

0
0

0.38

0

0

0

0

6.1

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Units

UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L

Qualifier

Non-detect
Non-detect

Between LOD and LOQ

Non-detect

Non-detect

Non-detect

Non-detect

Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect
Non-detect

MCL

5

600

75

5
7

70
100
5
5

700
100
100

MCL Unit

UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L

https://dnr.wi.gov/dwsviewer/Sample/View/4768758

3/23/2020

-------
Volatile Organics Sample 9/26/2019

Page 2 of 2

Storet Code

Description

Result

Units

Qualifier

MCL

MCL Unit

2991

TOLUENE

0

UG/L

Non-detect

1000

UG/L

2378

1,2,4-TRICHLOROBENZENE

0

UG/L

Non-detect

70

UG/L

2981

1,1,1 -TRICHLOROETHANE

0

UG/L

Non-detect

200

UG/L

2985

1,1,2-TRICHLOROETHANE

0

UG/L

Non-detect

5

UG/L

2984

TRICHLOROETHYLENE

0

UG/L

Non-detect

5

UG/L

2414

1,2,3-TRICHLOROPROPANE

0

UG/L

Non-detect



UG/L

2976

VINYL CHLORIDE

0

UG/L

Non-detect

0.2

UG/L

2955

XYLENES, TOTAL

0

UG/L

Non-detect

10000

UG/L

Showing 1 to 41 of 41 entries
Column visibility Copy to Clipboard Download to Excel/CSV

Previous | 1

The Official Internet site for the Wisconsin Department of Natural Resources

101 S. Webster Street. PO Box 7921 . Madison, Wsconsin 53707-7921 . 608.266.2621

https://dnr.wi.gov/dwsviewer/Sample/View/4768758

3/23/2020

-------
Volatile Organics Sample 9/26/2019

Page 1 of 1

Wisconsin Department of Natural Resources

Volatile Organics Sample 9/26/2019

Public Drinking Water System Data

WAUSAU WATERWORKS (73701023)

Sample Group Volatile Organics

Source ID
Sample Date
Site ID
Sample Type
Sample Source
Sample Collector
Lab ID

Reason for No Results

300

9/26/2019
300

Compliance
Entry Point
DJENSEN
721026460

Sample ID
Well#
Sample Time
Sample Description
Reported Date
# Taken

Lab Name
Lab Comment

1151345
1136

10/24/2019
1

Northern Lake Seivice Inc. (Crandon)

Sampling Results

Show 10 v entries

Filter:

Storet Code

Description

Result

Units

Qualifier

MCL

2990

BENZENE

0

UG/L

Non-detect

5

2993

BROMOBENZENE

0

UG/L

Non-detect



2943

BROMODICHLOROMETHANE

0.41

UG/L

Between LOD and LOQ

80

2942

BROMOFORM

0

UG/L

Non-detect

80

2214

BROMOMETHANE

0

UG/L

Non-detect



2982

CARBON TETRACHLORIDE

0

UG/L

Non-detect

5

2216

CHLOROETHANE

0

UG/L

Non-detect



2941

CHLOROFORM

7

UG/L



80

2210

CHLOROMETHANE (METHYLCHLORIDE)

0

UG/L

Non-detect



2965

O-CHLOROTOLUENE

0

UG/L

Non-detect



Showing 1 to 10 of 41 entries
Column visibility Copy to Clipboard Download to Excel/CSV

Previous I 1

MCL Unit

UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L
UG/L

Next

The Official Internet site for the Wisconsin Department of Natural Resources

101 S. Webster Street. PO Box 7921 . Madison, Wsconsin 53707-7921 . 608.266.2621

https://dnr.wi.gov/dwsviewer/Sample/View/4768760	3/23/2020

-------
10

CW-3 VOC Concentration Trends

CITY WATER SUPPLY WELL CW-3 VOC CONCENTRATION TREND

WAUSAU WATER SUPPLY NPL SITE
WAUSAU, WISCONSIN

-------
Appendix I
SVE Closeout Letters

-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

REGION 5
77 WEST JACKSON BOULEVARD
CHICAGO.IL 60604-3590

APR 0 8 1996

RECEIVED

CRA; INC,

REPLY TO THE ATTENTION OF:

SR-6J

April 2, 1996

Mr. Miles Philips
Conestoga-Rovers and Associates
1801 Old Highway 8, Suite 114
St. Paul, Minnesota 55112

Dear Mr. Philips

The United States Environmental Protection Agency (U.S. EPA) has reviewed the Final SVE
System Performance Evaluation Report/Mid Point of Operations for the Wausau Water Supply
NPL Site which was submitted on February 14, 1996. The report adequately addresses all
comments made on the draft report, and is therefore approved as final.

If you have any questions, please call me at (312)-886-0394.

Remedial Project Manager

cc: Lawrence Lester, WDNR
Joseph Gehin, City of Wausau
James Cherwinka, Wausau Chemical
David Eisenreich, Marathon Electric

Recycled/Recyclable • Printed with Vegetable OD Based Inks on 100% Recycled Paper (40% Postconsumer)

Sincerely

-------
SVE SYSTEM PERFORMANCE
EVALUATION REPORT
MID POINT OF OPERATIONS

Wausau Water Supply NPL Site
Wausau, Wisconsin

February 1996

Ref. No. 3978-00 (15)	Conestoga-Rovers & Associates

This report printed on recycled paper

-------
5.0

WEST BANK SUMMARY, COMPLETION NOTIFICATION AND
REQUEST FOR CLOSURE OF THE WEST BANK SVE SYSTEM

Based on the criteria specified in the CD and the monitoring
plan, the Wausau PRP Group hereby presents notice of completion and formal
request for approval for shut down and closure of the West Bank SVE system.
Data evaluations and summaries documenting that closure criteria have been
met are presented below.

5.1 SOIL SAMPLING SUMMARY

5.1.1	Summary of the West Bank Pre-Startup Soil Sampling

The results of the pre start-up soil sampling conducted in
1993 are presented in Table 5.1. The statistical summary of this data is presented
in Table 5.2. Figure 5.7 presents the 1993 soil sample locations. The soil samples
were analyzed for the list of Site VOCs in use during December 1993. The data
indicates TCE as the primary contaminant at the Site. The data also indicates
acetone in high concentrations. The acetone detections were attributed to sample
collection and analysis contamination after results of soil gas samples collected at
the start up of the system did not detect any acetone.

5.1.2	Summary of the West Bank Mid-Point Soil Sampling

The results of the mid-point soil sampling conducted in 1995
. are presented in Table 5-3- The statistical summary of this data is presented in
Table 5.4. Figure 5.8 presents the 1995 soil sample locations.

The soil samples were analyzed for the current list of Site
VOCs. This list is shorter than the Site VOC list used for the pre start-up
sampling as the list was reduced by eight VOCs as part of the approved
monitoring program changes in 1994. The approved modifications to the Site
VOC list were due to repeated non detects for those VOCs in the groundwater.
Any VOC not on the current Site VOC list is not a contaminant of concern and

3978(15)

11

Conestoga-Rovers & Associates

-------
adding two new active SVE wells to the SVE system and shutting down SVE
wells 1 and 3. The new wells would be placed within the Wausau Chemical
Building to improve VOC removal from beneath the building.

7.3 RECOMMENDATIONS FOR OPERATIONS
OF THE WEST BANK SVE SYSTEM

The cleanup objectives at the West Bank have been achieved
and with closure approval, operation and monitoring of the system will cease.
Marathon Electric and the City of Wausau propose to postpone dismantling of
the SVE system until the East Bank SVE system is dismantled. There are
potential cost savings for combining this work. This would also allow for the
voluntary operation of the West Bank system beyond the requirements of the
Consent Decree.

3978(15)

21

i

Conestoga-Rovhrs & Associates

-------
UNITED d..7ES ENVIRONMENTAL PROTECTION AGENCY

REGION 5
77 WEST JACKSON BOULEVARD
CHICAGO, IL 60604-3590

5*7 7 g-

September 26, 2007

REPLY TO

Jason Twaddle		 	—'

Conestoga-Rovers

1801 Old Highway 8 Northwest, Suite 114
St. Paul, Minnesota 55112

RE: Wausau Groundwater Superfund Site

Dear Mr. Twaddle:

This letter is to inform you that U.S. EPA and WDNR approve the closure of the East Bank Soil
Vapor Extraction (SVE) system on the Wausau Chemical property, in response to your August
29, 2007 memo to Eileen Kramer and myself, which included the requested Deed Restriction for
Wausau Chemical recorded 4/26/07 by Marathon County, Wisconsin. The East Bank SVE
system operated from 1994 to 2001. Subsequent soil sampling in 2001 and local quarterly
groundwater monitoring completed in 2003 provided confirmation to the shut down of the East
Bank SVE system in 2001.

As a result, all the requirements for the SVE soil source remediation at the Wausau Groundwater
Superfund Site have been completed, as approval for the closure of a second West Bank SVE
system on the Marathon Electric property took place in April 1996. In addition, though, a
documented property restriction is needed for the former Wausau City Landfill on the Marathon
Electric property. The West Bank SVE system operated between 1994 and 1996.

Future remediation activities at the Wausau Groundwater Site will now focus on the operation,
maintenance and monitoring of the groundwater remedy at the Site.

cc: Eileen Kramer, WDNR

Recycled/Recyclable • Printed with Vegetable Oil Based Inks on 100% Recycled Paper (50% Postconsumer)

-------
Appendix J
O&M Cost Estimates

-------
Appendix J
O&M Cost Estimates

The costs for the City of Wausau for O&M of the air strippers at the water treatment plant range
from about $38,000 to $42,000 per year or approximately $198,500 for the 2015 through 2019
five-year period. The costs for GHD, the environmental contractor, to assist in the other cleanup
efforts are approximately $45,000 to $50,000 per year for O&M at the Wausau Water Supply
Site (about $245,000 for the 2015 through 2019 five-year period). This includes annual
groundwater monitoring (including lab costs), annual reporting, monitoring well maintenance
and site inspections. It does not include work conducted for the vapor intrusion evaluation or the
EW1 Shutdown Pilot Study.

-------
Appendix K
Figures

-------
FIGURE 1 REGIONAL LOCATION MAP

-------
Footbridge1

Gravel
Pit 1

¦1_ Gravel

w

icenfcl

Sylan -Hilt
Park/

Jefferson

SchVl

KN'OX

(WXCO)

High s2«=

WAU3AU

'^Ibsji u \

IBRIDCI

^l^Friliiklm l-lfh jj; )[ u]|

HE I, - Jir===^[	ir~m

\ I y i St Michjaels_sjh

3kxojj[^5

MAPLE

CALt.

iconsin

[^^~fjjfNQTON
CouT^ouse^a

[COUNTY
FAIRGROUND

mtessori

WAUSAU

i iM I \v

m /€k 4

&QQ

WAUSAU

, "Long;

113a

SHftRWArj},

12151

flak Islai

Source: USGS 7.5 Minute Quads - Wausau East; Wausau West

WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2019 ANNUAL MONITORING REPORT

SITE LOCATION

003978-00
Jan 2, 2020

FIGURE 1.1

GIS File: l:\GIS\Projects\6-chars\00—\0039-\003978\003978-REPORTS\003978-00(042)\003978-00(042)GIS-SP001.mxd

-------
WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2019 ANNUAL MONITORING REPORT

SITE PLAN

003978-00
Jan 3, 2020

FIGURE 1.2

GIS File: l:\GIS\Projects\6-chars\00—-\0039--\003978\003978-REPORTS\003978-00(042)\003978-00(042)G IS-S POO 2.m

-------
:••• -20.1 5 G

Go gle earth

feet*
km"

*4000

Figure 1.3
Aerial Photograph

(Circa. 2015)

-------
Figures 2
(2013-2019)
Groundwater Contours

GHD | 003978Bianchin39rATT TP

-------
Figure 2

GROUNDWATER ELEVATIONS
NOVEMBER 11, 12,2013
WAUSAU WATER SUPPLY NPL SITE

Wausau, Wisconsin

03B7MD(033)GN-WA002 JAN 8/2014

-------
Figure 2 B

GROUNDWATER ELEVATIONS
NOVEMBER 3, 4, 2014
WAUSAU WATER SUPPLY NPL SITE

Wausau, Wisconsin

SOURCE: RMT INC. FIGURE 1.5/14/87.	

03978-00(034)GN-WAQ02 FEB 2/2015

-------
LEGEND

• MONITORING WELL LOCATION
9 CITY PRODUCTION WELL LOCATION
B EXTRACTION WELL LOCATION
0 INDUSTRIAL WELL LOCATION
ffB5.es GROUNDWATER ELEVATION (NGVD)

1185		 GROUNDWATER CONTOUR (NGVD)

118	6	GROUNDWATER CONTOUR (NGVD) ASSUMED

3

SOURCE: RMT INC. FIGURE 1, 5/14/B7.

Figure 2 C

GROUNDWATER ELEVATIONS OCTOBER 12 & 13, 2015
WAUSAU WATER SUPPLY NPL SITE

Wausau, Wisconsin

OLD
LANDFILL
LIMITS

WAUSAU 		

CHEMICAL
COMPANY ^	

03978-00(035)GN-WAQ02 FEB 4,201$

-------
WAUSAU WATER SUPPLY NPL SITE
WAUSAU, WISCONSIN
2016 ANNUAL MONITORING REPORT

GROUNDWATER CONTOURS - OCTOBER 25, 2016

003978-00
Mar 20,2017

FIGURE 2D

GB Fie: l:\QIS\Prol8CtS\froharS\0D—\OO38-¥)D397B\OO397B-REPORTS\DO3878-OD(03B)\0D397B-OO(O3a)QI8-8PDO3.mxd

-------
CW11
1193.00

GM4D _ 4
1185.49 • J£>

'CW90BS R
\184.83

CW10

GM2S
1186.50

MW4B
NM

MW7 i
1182.65,

MW3A
1185.86

MARATHON *
ELECTRIC MFG.f

•WSWS NM
'WSWU 1187.66

W53A
NM

[WILSON HURDl
TEST WELL
1187.48

OLD LANDFILL.
LIMITS

GM6D
1187.21

WAUSAU
CHEMICAL'
COMPANY

WC5ff
M NMfl

WC5A
1187:17

WC4
NM
WC4A I
1187.18

WC3B ,
l«87.23l
twc3 "n
¦ WM.

MW10A

WM
MW10B
1186.84

WATER
TREATMENT'
PLANT

WC7A
1186.92

MONITORING WELL

EXTRACTION WELL

CITY PRODUCTION WELL

INDUSTRIAL WELL

GROUNDWATER ELEVATION

GROUNDWATER CONTOUR

APPROXIMATE EXTENT OF
CONTAMINANT PLUME IN
GROUNDWATER

LEGEND



WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2017 ANNUAL MONITORING REPORT

GROUNDWATER CONTOURS - OCTOBER 2017

003978-00
Jan 26, 2018

FIGURE 2E

GIS File: l:\GIS\Projects\6-chars\00-~-*0039-\003978\003978-REPORTS\003978-00(039)TI03978-00(039)GIS-SP003.m

-------
CW11
1193.00

GM4D _ 4
1185.49 • J£>

'CW90BS R
\184.83

CW10

GM2S
1186.50

MW4B
NM

MW7 i
1182.65,

MW3A
1185.86

MARATHON *
ELECTRIC MFG.f

•WSWS NM
'WSWU 1187.66

W53A
NM

[WILSON HURDl
TEST WELL
1187.48

OLD LANDFILL.
LIMITS

GM6D
1187.21

WAUSAU
CHEMICAL'
COMPANY

WC5ff
M NMfl

WC5A
1187:17

WC4
NM
WC4A I
1187.18

WC3B ,
l«87.23l
twc3 "n
¦ WM.

MW10A

WM
MW10B
1186.84

WATER
TREATMENT'
PLANT

WC7A
1186.92

MONITORING WELL

EXTRACTION WELL

CITY PRODUCTION WELL

INDUSTRIAL WELL

GROUNDWATER ELEVATION

GROUNDWATER CONTOUR

APPROXIMATE EXTENT OF
CONTAMINANT PLUME IN
GROUNDWATER

LEGEND



WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2017 ANNUAL MONITORING REPORT

GROUNDWATER CONTOURS - OCTOBER 2017

003978-00
Jan 26, 2018

FIGURE 2F

GIS File: l:\GIS\Projects\6-chars\00-~-*0039-\003978\003978-REPORTS\003978-00(039)TI03978-00(039)GIS-SP003.m

-------
LEGEND

MONITORING WELL

CW11

EXTRACTION WELL

CITY PRODUCTION WELL

INDUSTRIAL WELL

GROUNDWATER ELEVATION

GM4D
1180.98j

GROUNDWATER CONTOUR

CW10
~1168

CW90BS R
1181.11

APPROXIMATE EXTENT OF
CONTAMINANT PLUME IN
GROUNDWATER

MW4A
1181.27

GM2S
1182.34

MW4B
NM

MW3A
1182.08

W55A
NM

MW1A
1182.53

W52A
A//W
) W52
1183.37

MARATHON
ELECTRI0 MFG.

.WSWS NM
WSWD 1183.33

W53A
NM •

— WILSON HURD1
[•J TEST WELL

1182.54

OLD LANDFILL,
I LIMITS

-------
Figures 3(A - S)
Total Chlorinated VOC Concentration Charts

GHD | 2019 Annual Monitoring Report | 003978 (42)

-------
-------
WSWD

cis-l,2-Dichloroethene —Trichloroethene

-------
-------
700
650
600
550
500

j 450

"li)

3

400

C

o

B 350

0)

o 300

o
o

250

200
150
100
50

-------
-------
W54

cis-l,2-Dichloroethene —Trichloroethene

-------
W53A

cis-l,2-Dichloroethene —Trichloroethene

-------
W52

cis-l,2-Dichloroethene —Trichloroethene

-------
1500

1400
1300
1200
1100
1000

J

^ 900
c

2 800

2

c 700

01

0

o 600

u

500
400
300
200
100

0

-------
R4D Since 2000

cis-l,2-Dichloroethene —Trichloroethene

-------
R3D All Data

cis-l,2-Dichloroethene —Trichloroethene

-------
R3D Since 2011

cis-l,2-Dichloroethene —Trichloroethene

-------
4000

3500

3000

i 2500

3

C
O

g 2000

c

0)

c

O 1500

1000

500

-------
-------
5.0

4.5
4.0
3.5

1.5
1.0
0.5

0.0

-------
EW-1

90
85
80
75
70
65
60

J

"a 55

3

C 50
O

g 45
+-
C

0) 40
0

J35

30
25
20
15
10
5

J

i











































































































































































































































































































































































































































































































































i/\





























¦











&

s*

S*



&





s*





^ ¦$¦
¦cis-l,2-Dichloroethene —•—Trichloroethene

s»-



S»-

-------
CW6

cis-l,2-Dichloroethene —Trichloroethene

-------
C4S

cis-l^-Dichloroethene —Trichloroethene	Vinyl chloride

-------
C2S

cis-l,2-Dichloroethene —Trichloroethene

-------
Wausau Site FYR
Figures 4 (A-P)

Graphs Depicting Total Chlorinated
VOCs in Groundwater historical thru
11/2019)

MW1ATCVOC

-------
WSWD TCVOC

-------
EW1TCVOC

-------
R2DTCVOC

-------
R3D TCVOC (Recent)

-------
R4DTCVOC

-------
W52 TCVOC

-------
W53A TCVOC

-------
W54 TCVOC

-------
W55 TCVOC

-------
W56 TCVOC

-------
C2STCVOC

-------
C4STCVOC

-------
I WD TCVOC

-------
CW3 TCVOC

-------
CW6 TCVOC

-------
WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2019 ANNUAL MONITORING REPORT

GROUNDWATER ELEVATIONS AND CONTOURS
SEPTEMBER 2019

003978-00
Jan 3, 2020

FIGURE 5 A

, rs\00—\0039--\003978\003978- R EPORT SB03978-00 (042)*003978-00 (042)G IS-SP003 .m

-------
WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2019 ANNUAL MONITORING REPORT

TRICHLOROETHENE CONCENTRATIONS
SEPTEMBER 2019

003978-00
Jan 3, 2020

FIGURE 5]

, rs\00—\0039--\003978\003978- R EPORT SB03978-00 (042)*003978-00 (042)G IS-SP004 .m

-------
-#-W55A-

I WILSON HURD
I TEST WELL

GM6D,

OlWflHp

~~~~~CD

WC5A

QgaDDODD
~ nmn ODD ~

WC4
WC4A1

-WC3B
km74f

WC7A

dcano

•	MONITORING WELL

B	EXTRACTION WELL

0	CITY PRODUCTION WELL

0	INDUSTRIAL WELL

APPROXIMATE AREA EXCEEDING
ENFORCEMENT STANDARD (70 |jg/L)

~

~u
Qo
Do.
~~
~a

CD '

I B









~~





a n

,nD



\m

nU





qd



~





~ ~

]\*m



m

~

J

F
:

a -

~

~.
~o .

Cb '

~p
~

	'rrown'st	

~

~ Da ~

0 OD°

0 n'
~ ~

T7i

li | fla

a~i

~

Dn°

~ a

~ ~

~

Cf

M

. [?

J *



i aD

u n

Q n

r~mr

r*

h Li

O

°UB



¦li

Mb

E UNION AV

DC

n

a

~	D p
a ° ~

~	~ „~
rtP nQ

—1J dp an

fnOQD ~ ~ O

E28A, rl 'i, n-P

|uud gpo Driii

DQOO°DcS

1 fill till Tail I 1 M ™
~ °D D pup P X3

nPOdOaP0
qp™DD ^

« rfLJ nil I* I3 I

s cr° ~ ° n n &
PpPDDgpD

u

3

~ ~ a ~~~ ~
~~ ~ ~ ~ ~

i ¦ 1

g D
¦snfl a

ODD Q



Fai

a ~



~*-

D ~





1=1 ~



sH





™ .

d D



C3 1=1









^Jo

~





n
-------
¦ ~W55A-

I WILSON HURD
I TEST WELL

GM6D,

~~~~~on

WC5A
0.63 J

QgDD DODO

~ °°
~ nmn DDO ~

WC4
WC4A1

WC3B
r350 ..

a q^C\ (qbQQQDnD

B

3D do &¦ ooanD

|VVl7A

•	MONITORING WELL

B	EXTRACTION WELL

0	CITY PRODUCTION WELL

®	INDUSTRIAL WELL

APPROXIMATE AREA EXCEEDING
ENFORCEMENT STANDARD (5|jg/L)

~
~u

aa

Do.
~~
~a

CD '

I B









~~





a n

,nD



\m

nU





qd



~





~ ~

]\*m



m

~
m

I

~

"ffi

o „

a -

~

~.
~o .

Cb '

~p
~

	'rrown'st	

~

~ Da ~

0 OD°

0 n'
~ ~

T7i

li | fla

a~i

~

Dn°

~ a

~ ~

~

Cf

M

. [?

J *



i aD

u n

Q n

r~mr

r*

h Li

O

°UB



¦li

Mb

E UNION AV

t= tVAUSHU a*	•—

~~~~~~ rfji ph

~afl aDdp ~° ob

fnDCP ~ n O

E28A, rl 'i, n-P

|uud gpo Driii
DQOO°DcS

1 liil till Tail I 1 M ™
~ °D D pep P X3

nQOdOaP0

'npoaDp

rfLJ nil |fl I3 I II

ff° ~ ° n n ^
PpPDDgOo

n

u

~ ~ a ~~~ ~
~~ ~ ~ ~ ~

i ¦ 1

g D
¦snfl a

ODD Q



a H

a ~



~*-

D ~



|C5

1=1 ~



sH





fl .

d D



C3 1=1









^Jo

~





n
-------
LEGEND

i GM2S



MONITORING WELL

EXTRACTION WELL

| MW7

CITY PRODUCTION WELL

INDUSTRIAL WELL

MW3A.

APPROXIMATE AREA EXCEEDING
,1 EN FORCEMENT STANDARD (0.2 |jg/L)

SITE BOUNDARY

i-#-W55A-

MARATHON ELECTRIC

fwsws

WSWD
<0.20

MARATHON
ELECTRIC

I WILSON HURD
I TEST WELL

OLD LANDFILL
LIMITS"



GM6D,

~afliOD
Q° a

WC5A
<0.20

WC4
WC4A1

V-WC3B
10"
"tWC~3 |

a ~pDl (qbQaQDnD| paoaao n

Q. n ^ c—' ~ Rd ~ CP ~ D> ~ CD ~ U

L-1 ~i-l,	gacp q 00 ~ ~ O

3D do \y qoodd ~~~ podd

WC7A

WAUSAU WATER SUPPLY NPL SITE

WAUSAU, WISCONSIN

2019 ANNUAL MONITORING REPORT

VINYL CHLORIDE CONCENTRATIONS
SEPTEMBER 2019

003978-00
Jan 3, 2020

FIGURE 5E

, rs\00—\0039--\003978\003978- R EPORT SB03978-00 (042)*003978-00 (042)G IS-SP007 .m

-------
MONITORING WELL LOCATION

GM4D

PRIVATE WELL SURVEY AREA

,CW9 0BSR

BUGBEEAV

CW10 ©

SITE PARCEL BOUNDARY

BRISBANE CT

GM2S

MW4B MW4A

MW3A

W56 BURNS ST

W55A
W55

CLAYTON ST

MVV1A*

RANDOLPH ST

PARCHER ST

W52/v
W52

MARATHON
ELECTRIC MFG

BROWN ST

W53A
W53j

WSWD
WSWS

WINTON ST

WILSON HURD
TEST WELL

STROWBRIDGE ST

NINA AV

TURNER ST

KNOX ST

AUGUSTA AV

OLD
LANDFILL
LIMITS

UNION AV

E UNION AV

GM6D#

WAUSAU
CHEMICAL
COMPANY

E WAUSAU AV

WW6#

WAUSAU AV

MOBILE AV

# FVD5

WC5 If
WG5A-

PARKAV

wcM

WC4A'

NORTON ST

E24AR

'WC3Bj
LWC3H

LINCOLN AV

WATER
TREATMENT
PLANT

OUAWST

MW10A
MW10B

HUMBOLDT AV

WC7A

CHICAGO AV}

figure 6

PRIVATE WELL SURVEY AREA
WAUSAU WATER SUPPLY NPL SITE

Wausau, Wisconsin

003978-00(034)GIS-SP003 FEB 18/2015

LEGEND

® CITY PRODUCTION WELL LOCATION
E EXTRACTION WELL LOCATION
® INDUSTRIAL WELL LOCATION

^ CW11

500 ft

-------
I

Wisconsin Department of Natural Resource

i

Well I Drillhole I Borehole Filling & Sealing	Form 3300-005

Notice: Completion of this report is required by chs. 160, 281, 283, 289, 291-293, 295 and 299, Wis. Stats., and ch. NR 141 Wis. Adrn. Code. In accordance with chs.
281, 289, 291-293, 295 and 299, Wis. Stats., failure to file this form may result in a forfeiture of between $10-25,000, or imprisonment for up to one year, depending
on the program and conduct involved. Personally identifiable information on this form is not intended to be used for any other purpose.

Dale of Filling & Sealing: 01/01/2010	Reef: 119302

Verification. Check only if well filling &, sealing was done previously and you are just verifying that work.: No

1. Well Location Information

County: Marathon

Wl Unique Well #:

DNR Hicap Well #:

Latitude: (DD.DDDDD") 44.9854 °N

Longitude: (DD.DDDDD") 89.6256 °W

GPS Method Code: GPS008

Gov't Lot #:

Qtr/Qtr: NE

Quarter: NW

Section #: 24

Township #: 29 North Range #: 7 East

Well Street Address: 1619 BECHER DR

Subdivision Name:

Well City/Village/Town: CityofWAUSAU Well Zip Code: 54401 Lot#:

Does a new well replace this well?

Reason for Filling & Sealing: not being used

2. Facility I Owner Information

Facility Name:

Wl Unique Well # of Replacement Well:

FID#:

License/Permit/Monitoring #:

Original Well Owner:

Service Category:

Present Well Owner: ROGER BURK

Mailing Address of Present Owner: 1619 BECHER DR

City: WAUSAU

State: Wl

Zip Code: 54401

i3. Well / Drillhole / Borehole Information

Well Type: Water Well

Original Construction Date: (mm/dd/yyyy)



Construction Type: Drilled

Formation Type: Unconsolidated Formation

Total Well Depth From Ground Surface (ft.):

44.0(

(specify Other):

Casing Diameter (in.): 6.00

Lower Drillhole Diameter (in.):

Casing Depth (ft.):

Was well annular space grouted? Unknown If yes, to what depth (ft.)?

4. Pump, Liner, Screen, Casing & Sealing Material

Pump and piping removed?	Yes Liner(s) removed?

Depth to Water (ft.): 27.00

Screen removed?

No

Casing/Loop left in place?

Yes

Was casing cut off below
surface?

No

Did sealing material rise to
surface?

Yes

Did material settle after 24
hours?

No

If yes, was hole retopped?



If bentonite chips were used, were they hydrated with water from a known water source?

Yes

Method of Placing Sealing Material: Screened & Poured (Bentonite Chips)

(Explain Other):

N/A If no, was liner perforated?

Water Well Sealing Materials: Bentonite Chips

5. Material Used to Fill Weil / Drillhole

Material:	i From (ft.): i To (ft.):

chipped bentonite	Surface	44.00

Monitoring Wells & other Drillholes:

# and Units of Sealant:
12 bags

Mix Ratio or Mud Weight:
50# bag

i6. Comments	I

7. Supervision of Work

-------
Name of Person or Firm Doing Filling & Sealing: LANG WELL DRILLING CO INC [ License #: 4594[ Phone: 715-848-1234
1710 W GARFIELD AVE WAUSAU Wl 54401-5299	j Email Address:

8. DNR Use Only

Signed On: 04/13/2010 I Submitted By: NELSOD I Received On: 04/13/2010 i Approved On: 04/20/2010

^2

dnr.wi gov

-------
EW-1



90



85



80



75



70



65



60

-1



0)

55

3



C

50

0



+*



CB

4S









c



0)

40

0



c





35

o



30



25



20



15



10



5



0

c

4

,#

S«-

-cis-l,2-Dichloroethene

\p-

Trichloroethene

S*



-------
Appendix L
Tables 3.2, 4.1, and 7

-------
Table 3.2

Page 1 of 1

2018 City Well Pumping Summary
Wausau Water Supply NPL Site
Wausau, Wisconsin





Well

Well

Well

Well

Well

Well





CW-3

CW-6

CW-7

CW-9

CW-10

CW-11



Hours

147.5

593

0

79

166.7

235.2

January

Gallons

11.881

47.851

0

4.049

30.233

41.129



gpm

1342

1345

0

854

3023

2914



Hours

297.3

375.6

0

210.8

208.2

233.1

February

Gallons

23.736

30.408

0

10.007

41.206

40.745



gpm

1331

1349

0

791

3299

2913



Hours

446

291.8

198.9

352.5

147

251

March

Gallons

32.54

23.203

23.586

16.51

28.998

43.909



gpm

1216

1325

1976

781

3288

2916



Hours

316.7

401.8

215

204.8

153.4

133.9

April

Gallons

22.665

32.037

25.707

9.535

33.317

23.444



gpm

1193

1329

1993

776

3620

2918



Hours

319.3

420.3

213.4

204.9

161.8

157.5

May

Gallons

22.865

32.685

25.582

9.754

31.8

27.551



gpm

1193

1296

1998

793

3276

2915



Hours

334.4

383.7

185.8

221.5

178.7

126.5

June

Gallons

26.814

31.29

22.124

10.496

34.924

22.091



gpm

1336

1359

1985

790

3257

2911



Hours

290.7

446.5

204.1

207

383.8

0

July

Gallons

21.235

36.454

23.769

9.575

74.996

0



gpm

1217

1361

1941

771

3257

0



Hours

333.9

406.4

236.7

246.5

364.6

0

August

Gallons

25.979

32.957

27.562

11.454

70.568

0



gpm

1297

1352

1941

774

3226

0



Hours

313.8

402

168.7

174.3

169.3

83.7

September

Gallons

24.60

32.811

19.946

8.257

33.827

14.651



gpm

1307

1360

1971

790

3330

2917



Hours

287.8

454.9

109.5

106.3

141.8

87.4

October

Gallons

22.291

37.192

13.241

5.11

28.53

15.27



gpm

1291

1363

2015

801

3353

2912



Hours

312.6

406.7

121.3

135.4

99

108.2

November

Gallons

23.997

33.113

14.663

6.896

20.036

18.927



gpm

1279

1357

2015

849

3373

2915



Hours

314.4

427.4

140.9

140.6

134.4

88.7

December

Gallons

25.763

34.5

17.453

7.161

30.104

15.293



gpm

1366

1345

2064

849

3733

2874

Average hrs/week:

71.4

96.3

34.5

43.9

44.4

28.9

Average gpm:

1276

1346

1984

794

3310

2912

Notes:

Hours	- Total hours pumped per month

Gallons	- Millions of gallons pumped per month

gpm	- Gallons per minute

GHD 003978 (42)

-------
Table 4.1

Page 1 of 3

Annual Groundwater Monitoring Event
Analytical Results - September 9-10, 2019
Wausau Water Supply NPL Site











Wausau, Wisconsin











Location ID:





CW3

WC3B

WC5A

E21

E22A

E24AR

E37A

E37A

Sample Name:





W-190909-KJ-01

W-190909-KJ-05

W-190909-KJ-04

W-190909-KJ-03

W-190909-KJ-09

W-190909-KJ-08

W-190910-KJ-17

W-190910-KJ-18

Sample Date:





09/09/2019

09/09/2019

09/09/2019

09/09/2019

09/09/2019

09/09/2019

09/10/2019

09/10/2019







EB

EB

EB

EB

EB

EB

EB

Duplicate

Parameters

Unit



















Volatile Organic Compounds



WDNR ES

















1,1,2-T ri chl oroeth an e

|jg/L

200

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1,1-Dichloroethene

|jg/L

7

1.0 U

2.2

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

Acetone

|jg/L

9,000

10U

10U

10 U

10U

10U

10U

10U

10U

Benzene

|jg/L

5

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Carbon tetrachloride

|jg/L

5

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

Ch lo roform (T ri ch I orom eth an e)

|jg/L

6

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

cis-1,2-Di chl oroeth en e

|jg/L

70

1.0

74

1.0 U

1.0 U

1.0 U

3.6

0.52 J

0.56 J

Ethyl benzene

|jg/L

700

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Methylene chloride

|jg/L

5

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

Tetrachl oroeth en e

|jg/L

5

1.0

350

0.63 J

1.0 U

1.6

0.68 J

0.42 J

0.37 J

Toluene

|jg/L

800

0.50 U

0.25 J

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Trichl oroeth en e

|jg/L

5

0.75

44

0.48 J

0.50 U

0.50 U

0.26 J

0.65

0.69

Vinyl chloride

|jg/L

0.2

1.0 U

10

1.0 U

1.0 U

1.0 U

0.64 J

1.0 U

1.0 U

Xylenes (total)

|jg/L

2,000

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

GHD 003978 (42)

-------
Table 4.1	Page 2 of 3

Annual Groundwater Monitoring Event
Analytical Results - September 9-10, 2019
Wausau Water Supply NPL Site
Wausau, Wisconsin

Location ID:



WW4

WW6

MW10B

CW6

C2S

C4S

MW1A

R2D

R3D

Sample Name:



W-190909-KJ-06

W-190909-KJ-07

W-190909-KJ-02

W-190910-KJ-10

W-190910-KJ-11

W-190910-KJ-21

W-190910-KJ-16

W-190910-KJ-20

W-190910-K.

Sample Date:



09/09/2019

09/09/2019

09/09/2019

09/10/2019

09/10/2019

09/10/2019

09/10/2019

09/10/2019

09/10/201





EB

EB

WB

WB

WB

WB

WB

WB

WB

Parameters

Unit



















Volatile Organic Compounds





















1,1,2-Trichloroethane

|jg/L

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1,1-Dichloroethene

MQ/L

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

Acetone

Mg/L

10 u

10U

10 u

10U

10 u

10 u

10 u

10 u

10 u

Benzene

Mg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Carbon tetrachloride

Mg/L

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

Chloroform (Trichloromethane)

Mg/L

2.0 U

0.52 J

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

cis-1,2-Dichloroethene

Mg/L

1.0 U

14

1.0 U

1.0 U

1.0 U

2.2

1.0 U

2.4

1.0 U

Ethylbenzene

Mg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Methylene chloride

Mg/L

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

Tetrachloroethene

Mg/L

1.0 U

3.9

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

Toluene

Mg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Trichloroethene

Mg/L

0.50 U

11

0.50 U







0.53

10

1.1

Vinyl chloride

Mg/L

1.0 U

1.0 u

1.0 U













Xylenes (total)

Mg/L

1.0 U

1.0 u

1.0 U













GHD 003978 (42)

-------
Table 4.1	Page 3 of 3

Annual Groundwater Monitoring Event
Analytical Results - September 9-10, 2019
Wausau Water Supply NPL Site
Wausau, Wisconsin

Location ID:
Sample Name:
Sample Date:

R4D	EW1	W52	W53A	W54	W54	W55	W56	WSWD

W-190910-KJ-12	W-190910-KJ-24	W-190910-KJ-13	W-190910-KJ-14	W-190910-KJ-26	W-190910-KJ-27	W-190910-KJ-15	W-190910-KJ-19	W-190910-KJ-22

09/10/2019	09/10/2019	09/10/2019	09/10/2019	09/10/2019	09/10/2019	09/10/2019	09/10/2019	09/10/2019

WB	WB	WB	WB	WB	Duplicate	WB	WB	WB

Volatile Organic Compounds

1,1,2-T richloroethane

|jg/L

1.0 U

1.0 U

1.0 U

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 U

1,1-Dichloroethene

|jg/L

1.0 U

1.0 U

1.0 U

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 U

Acetone

|jg/L

10U

10U

10U

10U

10U

10U

10U

10U

10U

Benzene

|jg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Carbon tetrachloride

|jg/L

1.0 U

1.0 U

1.0 U

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 U

Chloroform (TrichIoromethane)

|jg/L

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

2.0 U

ci s-1,2- Di ch I oroeth en e

|jg/L

1.0 U

1.0 U

1.0

1.0 U

0.99 J

1.0 U

15

1.0 U

0.94 J

Ethyl benzene

|jg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Methylene chloride

|jg/L

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

5.0 U

Tetrachloroethene

|jg/L

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

1.0 U

Toluene

|jg/L

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

0.50 U

Trichloroethene

mq/l |

14 I

I 0.50 U I

I 6.8 I

I 82 |

I 40 |

I 39 |

I 7.7 I

I 0.50 U I

I 6.4

Vinyl chloride

|jg/L

1.0 U

1.0 U

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 U

1.0 U

Xylenes (total)

|jg/L

1.0 U

1.0 U

1.0 u

1.0 u

1.0 u

1.0 u

1.0 u

1.0 U

1.0 U

Note:

U - Not detected at the associated reporting limit
J - Estimated concentration
	-Detected

|	(-Concentration exceeded WDNR Enforcement Standard

EB - East Bank Well
WB - West Bank Well

GHD 003978 (42)

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Page 1 of 1

Table 7

2019 Groundwater Monitoring Plan
Wausau Water Supply NPL Site
Wausau, Wisconsin

Monitoring

VOC Sample Locations

Laboratory

Groundwater Elevations

Event

East Bank

West Bank

Analysis

East Bank

West Bank

Annual -
Fall

CW3, E21, E22A,
E37A, E24AR,
MW10B, WW4, WW6,
WC3B, WC5A

EW1, CW6, R2D,
R3D, R4D, C2S, C4S,
W52, W53A, W54,
W55, W56, WSWD,
MW1A

Volatile Organic
Compounds (VOC)
Method 8260B

E21, E22A, E24AR,
E26A, E28A, E37A,

FVD5, GM6D,
W.HURD, MW10B,

WC3B, WC4A,
WC5A, WC7, WW4,
WW6, City Well CW3,

C3S, C4S, C6S, C7S,
GM2S, GM4D, MW1A,
MW3A, MW4A, MW7,
R1D, R2D, R3D, R4D,
W52, W53A, W54,
W55, W56, W57,
WSWD, CW9-OBS,
City Wells CW6, CW9,
CW10, CW11 (if
pumping)

Site Specific VOC List

Acetone
Benzene

Carbon tetrachloride
Chloroform
1,1-Dichloroethene
cis-1,2-Dichloroethene
Ethylbenzene
Methylene chloride
Tetrachloroethene
Toluene

1,1,2-T richloroethane
Trichloroethene
Vinyl chloride
Xylenes

GHD 003978 (42)

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