Announcement of Final Regulatory Determinations for Contaminants on the Fifth Drinking Water Contaminant Candidate List
type: GovernmentService
description: The U.S. Environmental Protection Agency (EPA) is announcing final regulatory determinations for nine contaminants listed on the fifth Contaminant Candidate List. Specifically, the Agency is making final determinations not to regulate 2-aminotoluene, cylindrospermopsin, ethoprop, microcystins, molybdenum, permethrin, profenofos, tebuconazole, and tribufos. The Safe Drinking Water Act (SDWA) requires the EPA to make regulatory determinations every five years on at least five unregulated contaminants. A regulatory determination is a decision about whether or not to begin the process to propose and promulgate- a national primary drinking water regulation (NPDWR) for an unregulated contaminant.
date published: 2026-03-19
area served: United States
provider: Environmental Protection Agency
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://www.federalregister.gov/documents/2026/03/19/2026-05452/announcement-of-final-regulatory-determinations-for-contaminants-on-the-fifth-drinking-water
source organization: US Federal Register
publisher: AI Analytics

PropertyValue
property ID: Federal Register Document Number
value: 2026-05452

PropertyValue
property ID: Federal Register Citation
value: 91 FR 13227

PropertyValue
property ID: CFR Reference
value: 40 CFR 141

PropertyValue
property ID: EPA Docket
value: EPA-HQ-OW-2024-0456

AI Analytics
type: Organization