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Envirochem Corp.

Site Information
Contact Information

Community Involvement Coordinator
Cheryl Allen (allen.cheryl@epa.gov)
312-353-6196 or 800-621-8431, ext. 36196

Remedial Project Manager
Matthew Ohl
312-886-4442 or 800-621-8431, ext. 64442



(where to view written records)

Library Name
Street Address
Town, ST


Envirochem Corp. is owned and operated a waste storage and recycling business on 6 acres in Boone County, Zionsville, Indiana. The site is adjacent to the Northside Landfill. The facility recovered solvents and oils from industrial sources from 1977 until May 1982, when it was closed under a Court Order obtained by the State. The company's on-site storage practices resulted in an inventory beyond that needed to maintain recycling operations. Thus, when the company went into receivership, over 20,000 drums and 400,000 gallons of waste remained on-site. On one occasion, this excessive inventory resulted in an overflow of contaminated rainwater from a holding pond into an unnamed ditch that flows to Findley Creek, causing an oil sheen on Findley and Eagle Creeks. Some drums stored in the open and without an impermeable base deteriorated. In 1981, three organic solvents (1,1-dichloroethane, trichloroethene, and 1,1,1-trichloroethane) were found in on-site wells.

Site Updates | Latest Update || Five-Year Reviews

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Site Updates

August 2015

EPA issued a five-year review evaluating the protectiveness of the remedy for the site in April 2013.  EPA's five-year review recommended that the trustees for the site complete additional investigation and evaluations and propose additional remedial measures.  The trustees completed the first Support Zone Assessment and an evaluation of the water flows affecting the collection system in 2014.  Additional system evaluation is ongoing.  The remedy is expected to be protective of human health and the environment upon completion of an effective remedial action, and in the short term, exposure pathways that could result in unacceptable risks are being controlled. Institutional controls (ICs) are in place and effective.  EPA will review ICs once final remedy elements are established.


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