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The Tiered Approach to Corrective Action Objectives and the Site Remediation Program in Illinois

December 1997

Citation: ELR 10611

Author: James P. O'Brien

Editors' Summary: In mid-1997, the Illinois Pollution Control Board promulgated two rules that will affect the way contaminated sites are cleaned up in the state: the Tiered Approach to Corrective Action Objectives (TACO) rule and the Illinois Site Remediation Program (voluntary cleanup program) rule. This Article describes the TACO and voluntary cleanup program rules and the changes they make. The Article first gives some background on how cleanups were formerly conducted in Illinois. Next, the Article discusses the TACO rule and its corresponding "tiers" of cleanup objectives, including its approach to remediating contaminated groundwater. The Article then discusses the voluntary cleanup program rule, and concludes with an assessment of the new rules' impact.

Mr. O'Brien is an international partner in the Chicago office of Baker & McKenzie, concentrating his practice on environmental and energy law.

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