Chemical Contaminant: Phase II/V Rule Regulatory History
FR Notices discuss MCLGs and MCLs for the chemical contaminant rules. They include monitoring, reporting and public notification requirements. They also specify best available technology (BAT) for use with a variance or exemption.
- Arsenic Rule: National Primary Drinking Water Regulations; Arsenic and Clarifications to Compliance and New Source Contaminants (Final Rule) (PDF)(91 pp, 961 K, About PDF) 66 FR 6976-706, January 22, 2001
- Phase I: National Primary Drinking Water Regulations; Synthetic Organic Chemicals; Monitoring for Unregulated Contaminants (Final Rule) (pdf)
- Phase II: National Primary Drinking Water Regulations - Synthetic Organic Chemicals and Inorganic Chemicals; Monitoring for Unregulated Contaminants; National Primary Drinking Water Regulations Implementation; National Secondary Drinking Water Regulatio (pdf)
- Phase IIB: Drinking Water; National Primary Drinking Water Regulations; Monitoring for Volatile Organic Chemicals; MCLGs and MCLs for Aldicarb, Aldicarb Sulfoxide, Aldicarb Sulfone, Pentachlorophenol, and Barium (Final Rule) (pdf)
- Phase V: Drinking Water; National Primary Drinking Water Regulations- Synthetic Organic Chemicals and Inorganic Chemicals; National Primary Drinking Water Regulations Implementation (Final Rule) (pdf)