EPA amended its regulations concerning groundwater monitoring with regard to screening suspected contamination at land based hazardous waste treatment, storage and disposal facilities. The amendments replaced requirements to analyze for all Appendix VIII constituents with new requirements to analyze for a specified core list of chemicals plus those chemicals specified by the Regional Administrator on a site-specific basis. The Agency proposed these amendments on July 24, 1986.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- List (Phase 1) of Hazardous Constituents for Ground-Water Monitoring, Federal Register Notice (PDF)(12 pp, 1 MB, July 9, 1987)