Reilly Tar & Chemical Corp.
(St. Louis Park Plant)
Community Involvement Coordinator
Heriberto León (firstname.lastname@example.org)
312-886-6163 or 800-621-8431, ext. 66163
Remedial Project Manager
(where to view written records)
St. Louis Park Public Library
3240 Library Lane
Minneapolis, MN 55426-4102
Open Mon-Tue 10am-9pm; Wed,Fri-Sat 10am-5pm; Thu 1pm-9pm; Sun 12pm-5pm
The Reilly Tar & Chemical Corporation Site was used for coal tar distillation and wood preserving from 1917 to 1972. The site was sold to the City of St. Louis Park and converted to recreational and residential use in 1972. Reilly disposed of waste on-site in several ditches that flowed to an adjacent wetland. It is suspected that gases from contaminants related to the former wood-treating operation may be affecting indoor air quality above acceptable long-term risk levels.
The wastes generated by Reilly Tar & Chemical Corporation were mostly polycyclic aromatic hydrocarbons (PAHs), which contaminated the soil and ground water beneath the site. It is estimated that approximately 43,000 people use the ground water from aquifers near the site, which are now treated to meet all required health standards.
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The EPA has concluded that there is no danger to human health or threats from the vapor intrusion exposure pathway based on the results of a study on various properties on and near the site in June 2013. Where contaminants were detected in indoor air, they were below or within EPA’s acceptable ranges.
EPA and its contractors contacted residents and property owners and obtained access to collect this final round of samples of subslab and background soil gas along with indoor air. EPA recommended this further investigation based on earlier results of its study.
You can view EPA Region 5’s most recent guidance in the EPA's Region 5 Vapor Intrusion Guidebook (October 2010). Visit EPA's Vapor intrusion website to get additional information that includes technical and policy documents.
- Open houses on Reilly Tar and Chemical site environmental investigation in St. Louis Park, Minn., March 3, February 24, 2011
- EPA to Investigate Vapor Intrusion Problem (PDF) (4pp, 341KB)
- What you should know about vapor intrusion (PDF) (2pp, 232KB)
- Screening Levels for Vapor Intrusion Contaminants of Concern (PDF) (1pp, 1.85MB) Sept 2013
- Site map (PDF) (1pp, 373KB) February 2011
- Record of Decision 1995 (PDF) (35pp, 1.85MB) June 1995
- Record of Decision 1992 (PDF) (43pp, 1.48MB) September 1992
- Record of Decision 1990 (PDF) (35pp, 1.85MB) June 1990
- Record of Decision 1986 (PDF) (35pp, 1.85MB) June 1986
- Record of Decision 1984 (PDF) (35pp, 1.85MB) June 1984
- Fourth five-year review report (PDF) (110pp, 4.4MB) June 2011
- Third five-year review (PDF) (86pp, 3.7MB) September 2006
- Second five-year review (PDF) (50pp, 2.4MB) September 2001
- First five-year review (PDF) (47pp, 2.4MB) March 1996