WPSC Marinette MGP Site
- Marinette, WI (Marinette County)
- EPA ID#WIN000509952
- This site is not on the NPL; it is a Superfund Alternative Site (SAS)
- CERCLIS listing
- Alias(es): N/A
Community Involvement Coordinator
Susan Pastor (firstname.lastname@example.org)
312-353-1325 or 800-621-8431, ext. 31325
Remedial Project Manager
312-886-6244 or 800-621-8431, ext. 66244
(where to view written records)
Stephenson Public Library
1700 Hall Ave.
The Wisconsin Public Service Corp. site is located in Marinette, Wis. The 4-acre former MGP plant is about 750 feet south of the Menominee River and about 1.5 miles upstream from the river mouth at Green Bay. Boom Landing Park is between the river and the site. It's currently used as a boat launch facility operated by the city.
WPSC owned and operated the gas plant from the 1910 to 1960 in an area that was historically industrial. Processes included coal carbonization and carbureted water gas. Currently, the site is owned by the city of Marinette and the property is occupied by the city's wastewater treatment plant.
You will need the free Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Ground water and upland soil sampling resumed in April at the location of the former MGP site (including the wastewater treatment plant and Boom Landing Park). Contractors have been collecting ground water samples from the existing monitoring well network by opening up the wells and drawing samples using a mechanized water pump. Contractors may also be seen in the area collecting soil gas samples. This involves drilling quarter-sized holes up to 2 feet into the ground and inserting thin plastic hoses to collect samples over a 24-hour period. Ground water sampling is expected to run quarterly through December 2014.
Additional soil gas sampling may be necessary after the first round of results is processed by August. When all of the soil and ground water sampling results come back from the lab, they will be used to help complete the remedial investigation report by July 2014. This report will identify how much PAH contamination there is and where it is located. Another document, called the feasibility study, will follow in 2015. It will list several possible ways to clean up the site.
An expedited cleanup of PAH-contaminated sediment in the Menominee River was completed in March. WPSC/Integrys funded and conducted the cleanup under EPA oversight. It included:
- building a sheet pile “coffer dam” to isolate the areas from which contaminated sediment will be removed
- excavating contaminated sediment using a backhoe on the back of barge
- backfilling some of the excavated areas with clean sand and gravel setting up a monitoring program for the remaining PAHs that have been covered with a sand and gravel mixture
- treating excavated water on shore before it is released back into the river
- mixing dewatered sediment with a cement-like additive to solidify it for easier transportation and disposal
- transporting the mixture to an off-site licensed landfill for proper disposal
This is one of two major sediment removal projects on the Menominee River. Staff from a different EPA program is overseeing the Ansul Inc. project. Everyone is working together to coordinate the cleanups. When these sediment removal projects are completed by 2014, EPA’s Great Lakes National Program Office can begin habitat restoration and consider deleting the Menominee River from its list of Areas of Concern, possibly in 2016.
Plans to investigate sediment, ground water and soil at six MGP sites began after a legal agreement called a consent order was signed between WPSC and EPA in May 2006. This agreement allowed for further investigation of the Marinette site and will determine how much contamination remains in soil, sediment and ground water.
The 2006 agreement also includes five other MGP sites in Green Bay, Manitowoc, Oshkosh, Two Rivers, and Stevens Point, Wisconsin. A separate agreement for another site, WPSC Campmarina in Sheboygan, was signed between WPSC and EPA in January 2007.
- EPA Proposes Dredging; Seeks Public Comments (PDF) (6pp, 952K) August 2012
- Powerpoint Presentation September 20, 2012 (PDF) (16pp, 2.2MB) September 2012
Manufactured Gas Plants (MGPs)
EPA Region 5 is working on former MGPs in Wisconsin and Illinois.
- Construction Quality Assurance Project Plan Focused NAPL and Sediment Removal Action Former Marinette MGP Site (PDF) (79pp, 1.4MB) October 2012
- Plans and Specifications Focused NAPL and Sediment Removal Action Former Marinette MGP Site (PDF) (475pp, 17MB) October 2012
- Action Memorandum (PDF) (31pp, 2.34MB) October 2012
- Community Involvement Plan (PDF) (37pp, 5.7MB) August 2012
- Engineering Evaluation/Cost Analysis (PDF) (45pp, 3.8MB) August 2012
Appendices and Tables - These documents are very large, so rather than post them on this web page, please visit the local site information repository to review them or contact us and we will send you copies on CD/DVD.
- NTC Figures (PDF) (8pp, 1.7MB) August 2012
- EPA Announces Proposed Plan (PDF) (18pp, 900K) August 2012
- ATSDR's Health Consultation (PDF) (11pp, 470K) February 2005
- Administrative Order on Consent for Non-Time Critical Removal Action (PDF) (31pp, 2.21 MB) October 2012
- Administrative Settlement Agreement and Order on Consent for Engineering Evaluation/Cost Analysis (PDF) (21pp, 1.4MB) July 2012
- Administrative Settlement Agreement and Order on Consent for Remedial Investigation and Feasibility Studies (PDF) (89pp, 8.8MB) April 2006