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Federal Register Notice: Amendments to List (Phase 1) of Hazardous Constituents for Groundwater Monitoring

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.

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