East Troy Contaminated Aquifer
Community Involvement Coordinator
Virginia Narsete (firstname.lastname@example.org)
312-886-4359 or 800-621-8431, ext. 64359
Remedial Project Manager
Shari Kolak (email@example.com)
312-886-6151 or 800-621-8431, ext. 66151
(where to view written records)
Troy-Miami County Public Library
419 W. Main St.
Troy, OH 45373
The East Troy site is an area where volatile organic compounds, including the common industrial chemicals PCE and TCE, have contaminated ground water, soil and the indoor air in basements. EPA addressed the indoor air health risk by installing vapor abatement systems in 16 homes and St. Patrick Elementary School in the summer of 2007. EPA and Ohio EPA data also shows that VOCs have contaminated ground water below the city of Troy, as well as a local drinking water well field. To address this, Ohio EPA and Troy have taken steps to contain one potential source of the contamination, and are treating contaminated ground water prior to use. Adding the site to the NPL enables EPA to study site conditions further, identify possible sources of the contamination, and develop a comprehensive strategy to address all locations and sources of the VOC contamination.
You will need the free Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more.
Over the past few years, EPA conducted Remedial Investigation (RI) sampling (collecting groundwater, soil, surface water, sediment, indoor air and subsurface gas sampling) to delineate the nature, source, and extent of contamination at the site.
The RI sampling was completed in three separate phases.
- The Phase I RI sampling was completed in 2012.
- Phase II RI sampling was completed in 2013.
- The Expanded Phase II RI sampling was completed in 2014.
Overall, EPA installed 30 new groundwater monitoring wells, collected more than 400 soil and groundwater samples, and tested 26 homes or commercial properties for vapor intrusion.
EPA is currently developing an RI report. It will summarize all sampling results from the Phase I, II, and Expanded Phase II RI investigations. We expect a final RI report by November 2014.
EPA's next step will be to develop a draft Feasibility Study (FS) report. The FS will evaluate potential remedial alternatives to address or clean up groundwater and soil contamination at the site. We expect a draft FS report by June 2015.
EPA expects to publish the Proposed Plan (a document outlining the preferred cleanup method) in October 2015. The public will then have 30-days to comment on the proposed plan.
Once all public comments are considered and addressed, EPA will issue a Record of Decision (ROD). The ROD formally documents EPA's selected cleanup method to address site contamination. EPA expects the ROD to be issued by April 2016.
- US EPA adds East Troy site to Superfund list, proposes two Ohio and one Indiana site for list September 3, 2008
- EPA proposes East Troy, Ohio, site for Superfund National Priorities List September 19, 2007
- EPA hosts public meeting on Troy, Ohio, vapor investigation, Oct. 25, 6 p.m. October 18, 2006
- MEDIA ADVISORY: EPA finds high chemical vapor levels in Troy, Ohio. Briefing Aug. 25, 10:30 a.m. August 24, 2006
- EPA Checking for Possible Vapor Problems (PDF) (4pp, 1.8MB) October 2011
- Two Studies Mark Beginning of Cleanup (PDF)(4pp, 583K) August 2010
- EPA Investigation Finds High Vapor Levels August 2006
- Presentation from Oct. 19, 2011, public meeting (PDF) (21pp, 1.3MB)
- Public Meeting (PDF) (18pp, 1.3MB) July 2010
- Meeting with City of Troy (PDF) (14pp, 2.0MB) September 2009
- East Troy Contaminated Aquifer Superfund Site: Meeting with the City of Troy (PDF) (583K) September 21, 2009
- Phase I Investigation Summary and Proposed Phase II Investigation Activities Technical Memorandum (PDF) (71pp, 6MB) July 2013
- Ohio Department of Health/ATSDR Public Health Assessment (PDF) (60pp, 18.1MB) April 22, 2011