Freedom of Information Act Requests

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Access to Agency Information

Illinois EPA has launched a new online tool created to improve transparency and public access to Agency documents. The IEPA Document Explorer includes technical documents from the Agency’s Leaking Underground Storage Tank (LUST) program and Site Remediation Program (SRP).

Beginning July 1, 2015, the public can access the IEPA Document Explorer to search more than 425,000 documents consisting of 11.5 million pages. Through the tool, individuals can search for locations of interest by site name; location address and/or program ID; or by a geographic mapping tool that will assist in identifying over 200,000 locations known to the Illinois EPA. Individuals or businesses seeking technical documents related to either the Leaking Underground Storage Tank (LUST) program or Site Remediation Program can access the IEPA Document Explorer through the Agency’s website at

The public may access environmental information by submitting a request pursuant to the Illinois Freedom of Information Act (FOIA) (5 ILCS 140).  The Agency’s corresponding rules (“Access to Public Records of the Illinois Environmental Protection Agency”, 2 Ill. Adm. Code 1828) that provide the framework by which Illinois EPA’s public records may be requested, accessed, inspected, and duplicated.

Your request for environmental information must be submitted through the following means: the interactive FOIA Request Web Form provided, or through fax, the US mail or special carrier.

Illinois EPA Records

Illinois EPA public records are primarily maintained by location, site/facility name, or project. Furthermore, these records are subdivided into categories reflecting the relevant Agency program, or document type. Consequently, it is important to provide as much specific information as possible when requesting information through the FOIA. In addition, Illinois EPA public records are maintained in various media including paper, microfilm, digital image, and computerized records.

Access to, or copies of public records may be obtained through the FOIA by several methods including an on-site records review at Agency Headquarters, Agency duplication (fees may be assessed) and mailing, or use of a copy contractor by the requester to perform duplication. The appropriate method will depend upon the type of media in which the requested records are maintained and the quantity of records requested. Likewise, any fees that may be assessed will vary with the type of media and the quantity of records requested.

For more information on the FOIA and how to request information under the FOIA, see the Frequently Asked Questions (FAQs).

Commonly Sought Information

Right to Know

The Right to Know law requires Illinois EPA to notify citizens when contamination in soil or groundwater that poses a threat of exposure to the public is found.