(pfas npdes guidance cwa
This memorandum provides EPA's guidance to states for addressing PFAS discharges when they are authorized to administer the NPDES permitting program and/or pretreatment program. While the Office of Water works to revise Effluent Limitation Guidelines (ELGs) and develop water quality criteria to support technology-based and water quality-based effluent limits for PFAS in NPDES permits, this memorandum describes steps permit writers can implement under existing authorities to reduce the discharge of PFAS.
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