EPA Modifies Second List of EDSP Screening Chemicals

In November 2010, EPA developed a second list of chemicals for screening and draft policies and procedures for the Agency’s use to require testing of chemicals for Tier 1 screening. On June 14, 2013, EPA issued a revised second list of chemicals and revised policies and procedures for screening SDWA chemicals, including the statutory requirements associated with and format of the test orders, as well as EPA’s procedures for fair and equitable sharing of test costs and data confidentiality.

EPA has removed hydrazine and hydrochlorofluorocarbon (HCFC-22) from the Second List of Chemicals for Screening  to allow for further consideration of their physical/chemical properties and/or occurrence in regards to whether these substances are appropriate candidates for testing in the EDSP under Safe Drinking Water Act authority at this time. The U.S. Court of Appeals for the Third Circuit granted EPA’s motion for voluntary partial vacatur and remand regarding these two chemicals.



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