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WPSC Stevens Point MGP Site
Site Information
- Stevens Point, WI (Portage County)
- EPA ID# WIN000509983
- This site is not on the NPL; it is a Superfund Alternative Site (SAS)
- CERCLIS listing
- Alias(es): N/A
- Photos
Contact Information
Community Involvement Coordinator
Susan Pastor (pastor.susan@epa.gov)
312-353-1325 or 800-621-8431, ext. 31325
Remedial Project Manager
Leslie Patterson
(patterson.leslie@epa.gov)
312-886-3594 or 800-621-8431, ext. 63594
Repositories
(where to view written records)
Portage County Public Library
Charles M. White Library Building
1001 Main St.
Stevens Point, WI
Background
The Wisconsin Public Service Corp. site is located in Stevens Point, Wis. Currently, the 3-acre former MGP plant is open space bounded to the west by a public park owned by the city. The Wisconsin River is just west of the park.
WPSC owned and operated the gas plant from the 1890s to the late 1940s in an area that was historically industrial. Processes included coal carbonization and carbureted water gas. WPSC, under its new name Integrys, still owns the site today.
Site Updates || Technical Documents || Legal Agreements
You will need the free Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Site Updates
February 2012
A proposed plan on how to clean up this MGP site will be available to the public this spring. It will summarize several options as well as highlight the EPA's recommended cleanup option. A public comment period on the proposed plan will be held before a final decision is made later this year.
The proposed plan summarizes information from two documents--the feasibility study and remedial investigation report. The feasibility study uses information from the remedial investigation report to come up with several possible cleanup options. The remedial investigation report includes the results from sediment, soil, soil vapor, and ground water samples taken in 2011 and 2008. These samples were taken by WPSC/Integrys contractors in the Wisconsin River, in a small pond in Pfiffner Pioneer Park, and on and near the former manufactured gas plant site by the park. All of these documents will be posted on this web page and will be available for review at the Portage County Public Library in Stevens Point.
Preliminary results from samples taken in 2007 indicated the surface soil in the park and nearby areas is generally clean. Deep soil in a filled-in slough (a low area filled with mud and water connected to a larger body of water, in this case the Wisconsin River) contains tar which most likely came from the former gas plant. Ground water is also contaminated with MGP-related pollutants. The contamination is not an immediate concern because it is buried and nobody is drinking the ground water.
Prior to EPA's involvement, various investigations as well as an upland cleanup, were done under Wisconsin Department of Natural Resources oversight in the 1990s.
The more recent work took place under a 2006 legal agreement (called a consent order) between WPSC and EPA. This agreement allowed EPA to oversee the company's investigation to determine how much contamination may remain.
Technical Documents
Manufactured Gas Plants (MGPs)
EPA Region 5 is working on former MGPs in Wisconsin and Illinois.
Feasibility Study - Revision 3, April 17, 2012
- Feasibility Study Report (PDF) (542pp, 38.94MB)
- Feasibility Study Revision 3 Transmittal Letter (PDF) (3pp, 124KB)
Remedial Investigation Report - Revision 3, April 17, 2012
- Redmedial Investigation Report (PDF) (226pp, 28MB)
- Appendices - 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
Feasibility Study - Revision 2, December 23, 2012
- Feasibility Study Report (PDF) (535pp, 38.97MB)
Remedial Investigation Report - Revision 2, December 14, 2011
- Remedial Investigation Report (PDF) (224pp, 27.40MB)
Remedial Investigation Report - Revision 1, May 27, 2011
- Introduction and Site Characterization (PDF) (24pp, 1.5MB)
- Site Characterization Activities (PDF) (18pp, 108K)
- Investigation Observation and Results (PDF) (22pp, 247K)
- Fate and Transport (PDF) (7pp, 68K)
- Summary and Conclustions, References (PDF) (4pp, 51K)
- Figures (PDF) (42pp, 67.2MB)
- Tables (PDF) (98pp, 1.3MB)
- Sheets (PDF) (3pp, 1.7MB)
Feasibility Study - Revision 1, May 31, 2011
- Introduction (PDF) (18pp, 1.2MB)
- Development of Remedial Action Objectives (PDF) (5pp, 3.6MB)
- Development and Screening of Technologies (PDF) (3pp, 3.5MB)
- Detailed Analysis of Remedial Alternatives (PDF) (18pp, 402K)
- Comparative Analysis of Remedial Alternatives and References (PDF) (8pp, 3.5MB)
- Figures and Tables (PDF) (20pp, 23.4MB)
- Appendix A and B (PDF) (47pp, 5.7MB)
- Appendix C and D (PDF) (185pp, 7.2MB)
Earlier documents
- Community Involvement Plan (PDF) (15pp, 382K) August 2007
- Completion Report (PDF) (306pp, 18MB) June 2006
- Remedial Investigation/ Feasibility Study Site Specific Work Plan, Rev 1 (PDF) (220pp, 12.0MB) April 26, 2007