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EPA/WATER RIN: 2040-AC98 Publication ID: Spring 1997 
Title: ●National Primary Drinking Water Regulations: Radium, Uranium, Alpha, Beta and Photon Emitters 
Abstract: EPA has proposed maximum contaminant level goals (MCLGs) and primary drinking water standards for radionuclides in drinking water. These radionuclides include radium, uranium, radon, total alpha, and beta particle and photon emitters. All of these contaminants were required to be regulated in the 1986 SDWA amendments. Radionuclides pose a cancer risk. Also, uranium poses a risk for kidney toxicity. Currently, EPA estimates that, at proposed levels, the regulation would avoid 126 cancer cases per year, and reduce exposure of 900,000 persons to the risk of kidney toxicity. The number of systems affected at proposed levels would be 29,000 at a cost of $660 million per year. All states with primacy would be responsible for overseeing the implementation of the rule including monitoring, recordkeeping, reporting, public notification, and treatment requirements. Local and tribal governments which own water systems are responsible for implementing the requirements. ^PIn January 1995 EPA announced that it was initiating a reassessment of the drinking water program, including the current regulatory agenda, to ensure that resources available for protecting drinking water accomplish the greatest risk reduction. The purpose of the effort is to clarify and change program priorities and realign resource allocations. ^PBy December 15, 1995, EPA and the litigants will agree on the time needed to negotiate a revised schedule for this rule. 
Agency: Environmental Protection Agency(EPA)  Priority: Economically Significant 
RIN Status: First time published in the Unified Agenda Agenda Stage of Rulemaking: Long-Term Actions 
Major: No  Unfunded Mandates: No 
CFR Citation: 40 CFR 141    40 CFR 142   
Legal Authority: 42 USC 300/SDWA 1412   
Legal Deadline:
Action Source Description Date
Final  Judicial  Uranium  12/00/2000 
Other  Judicial  Uranium Final or statement of rationale for not taking final action: Radi  12/00/2000 
Timetable:
Action Date FR Cite
ANPRM  09/30/1986  51 FR 34836   
NPRM  07/18/1991  56 FR 33050   
Final Action  12/00/2000    
Additional Information: SAN No. 3992.
Regulatory Flexibility Analysis Required: Yes  Government Levels Affected: Federal, Local, State, Tribal 
Small Entities Affected: Businesses, Governmental Jurisdictions, Organizations 
Included in the Regulatory Plan: No 
Agency Contact:
David Huber
Environmental Protection Agency
Water
4607,
Washington, DC 20460
Phone:202 260-9566
Fax:202 260-3762
Email: huber.david@epa.gov