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Congressional District # 7


EPA ID# IND000807107
Last Updated: September, 2014

Site Description

The 120 acre Reilly Tar & Chemical Corporation site began producing specialty chemicals and related products in the early 1950s. Reilly continues to operate a specialty chemical plant on the northern portion of the property. Until 1972, a coal-tar refining and wood treatment facility, which used creosote, operated on the site. A trench, a landfill, and several pits used to dispose of wastes are located onsite. A lime pond received boiler cooling water.

There are approximately 5,200 residents living within three miles of the site. Above ground tanks and process equipment cover much of the northern 1/3 of the site, where the Reilly chemical plant is located. The entire property is fenced.

Site Responsibility

The remedy was implemented by the potentially responsible parties under EPA and Indiana Department of Environmental Management (IDEM) oversight.

Threats and Contaminants

Studies indicate that groundwater is contaminated by benzene, pyridine, and ammonia, which are all raw materials that are used in the chemical production operations. Soils at the site are contaminated with a number of volatile organic contaminants (VOCs), semi-VOCs, and carcinogenic polynuclear aromatic hydrocarbons (PNAs). Direct contact risks from contaminated soils have been addressed through the cleanup plan.

Cleanup Progress

The site cleanup has been separated into five areas. As of 1999, the active construction phase has been completed at all five areas. Contaminated groundwater continues to be treated through an extraction system that sends groundwater to a local wastewater treatment plant.

Several onsite hot spots of soil contamination were excavated and thermally treated. Sludge from another area was solidified, and a soil cover was placed over a two acre area.

The remedy selected for the wood treatment and storage area was placement of a permeable (soil and gravel) cover. The remedy for the current chemical production area included soil vapor extraction from one source area, and a concrete cover over two other source areas.

The first five-year review for the site was completed in April 2000, which determined that the site remedy is protective of human health and the environment. Additional five year reviews in 2005 and 2010 have found that all remedies are performing as designed.

Success Story

Hanwha Q Cells completed a 10.8 MW solar facility at the site which became operational in March 2014.  This is the largest solar facility on a Superfund site in the country.

Community Involvement

Community was heavily involved during the RI/FS and the design and construction of the remedies but recent work at the site has generated minimal interest.

Congressional Interest

Congressional interest in the solar development was manifested in attendance at the April 2014 ribbon cutting by representatives from State and Federal offices.

Property Reuse

EPA and IDEM worked with a developer to facilitate construction of a solar energy facility on 45 acres of the site which had previously been remediated. The facility is built over a soil and gravel cover on the southern portion of the site.  EPA and IDEM coordinated, reviewed and provided oversight to ensure that the construction of the solar facility did not interfere with the protectiveness of that cover. Construction on the solar facility took five months and it became operational in March 2014 and remains operational generating electricity for the local network.  The developer hosted a ribbon cutting announcing the completion of the project in April 2014.


Remedial Project Manager, U.S. EPA
dion novak (novak.dion@epa.gov)
(312) 886-4737

Community Involvement Coordinator, U.S. EPA
janet pope
(312) 353-0628




Site Profile Information

This profile provides you with information on EPA's cleanup progress at this Superfund site.


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