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EPA/WATER RIN: 2040-AA97 Publication ID: Spring 1999 
Title: National Primary Drinking Water Regulations: Ground Water Rule 
Abstract: The Safe Drinking Water Act as amended in 1996 directs EPA to promulgate regulations requiring disinfection as necessary for ground water systems. The intention is to develop a protective public health approach which assures a baseline of protection for all consumers of ground water and sets in place an increasingly targeted strategy to identify high risk or high priority systems that require greater scrutiny or further action. Development and implementation of the rule will involve local, tribal, State and Federal governments. The structure of the rule is a series of barriers to microbial contamination. The multiple-barrier approach relies upon four major components: 1) periodic onsite inspections of ground water systems requiring the evaluation of eight key areas and the identification of significant deficiencies; 2) source water monitoring for systems drawing from vulnerable aquifers without treatment or with other indications of risk; 3) a requirement for correction of significant deficiencies; and 4) a requirement for treatment where contamination or significant deficiencies are not or cannot be corrected, and alternative sources of drinking water are not available. EPA believes that the combination of these elements strikes an appropriate regulatory balance which tailors the intensity or burden of protective measures and follow-up action to the risk being addressed. 
Agency: Environmental Protection Agency(EPA)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Proposed Rule Stage 
Major: Yes  Unfunded Mandates: State, local, or tribal governments; Private Sector 
CFR Citation: 40 CFR 141    40 CFR 142   
Legal Authority: 42 USC 300f SDWA sec 1412   
Legal Deadline:
Action Source Description Date
Final  Statutory  Publish radon health risk reduction and cost analysis. After August 6 1999 but before May 31 2002.  05/31/2002 
Timetable:
Action Date FR Cite
NPRM  11/00/1999    
Final  11/00/2000    
Additional Information: SAN No. 2340
Regulatory Flexibility Analysis Required: Yes  Government Levels Affected: Federal, Local, State, Tribal 
Small Entities Affected: Businesses, Governmental Jurisdictions, Organizations 
Included in the Regulatory Plan: Yes 
Agency Contact:
Tracy Bone
Environmental Protection Agency
Water
4601M,
Washington, DC 20460
Phone:202 564-5257
Fax:202 564-3753
Email: Bone.Tracy@epamail.epa.gov