The IL ELAP is operated by the Division of Laboratories, Quality Assurance Section.
Accreditation is based on the field of testing, approved test method and analyte.
Participation in the IL ELAP is voluntary except for any laboratory submitting community water supply water compliance data to the Illinois EPA, Bureau of Water, Compliance Assurance Section. Any laboratory submitting community water supply water compliance data must be accredited for those particular analytes. The laboratory must correct any deficiencies noted during the application package review. For more program information please look at the Frequently Asked Question list.