Chemicals not in TACO Tier I Tables
The Excel spreadsheet presented below includes Class I and Class II groundwater objectives for chemicals not contained in the TACO Tier I tables. These groundwater objectives are for convenience only and are not TACO Tier I objectives. Section 742.510 c) of the TACO regulations allow a person to request site-specific remediation objectives from the Agency for chemicals not included in the TACO Tables. Approval to use these objectives must still be obtained from Illinois EPA on a site specific and program basis.