EPAFinal Rule
Withdrawal of the National Primary Drinking Water Regulations: Analytical Methods for Regulated Drinking Water Contaminants; Direct Final Rule [W-97-04-I-A-3]
EnvironmentHealthcare
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Summary
The EPA is removing old federal rules about how water testing laboratories must measure harmful substances in drinking water. This update simplifies testing requirements so that water systems can use newer, more accurate methods to check if your tap water is safe to drink.
Key Points
- 1The EPA is eliminating outdated analytical methods that water testing labs were required to use
- 2Water systems can now use newer, more advanced testing techniques that are often more accurate and efficient
- 3This change affects public water utilities and private laboratories that test drinking water for contaminants
- 4The update allows for better detection of harmful chemicals and bacteria in tap water supplies
- 5Water companies and testing facilities must update their procedures but have flexibility in choosing approved modern methods
Impact Assessment
If you are a water utility or testing laboratory, this means you can now use newer, more accurate testing methods instead of outdated analytical procedures, reducing compliance burden while maintaining water safety standards.
Impact Level
Routine
Geographic Scope
National
Compliance Cost
Minimal
Who is Affected
Small BusinessesConsumersState Governments
Key Dates
Published
May 29, 2025
Regulatory Connections
Authorized By
Amends CFR Sections
40 CFR Part 141
Other Documents in This Rulemaking (EPA-HQ-OW-1995-0105)
EPAEnvironment
National Primary and Secondary Drinking Water Regulations: Analytical Methods for Chemical and Microbiological Contaminants and Revisions to Laboratory Certification Requirements [W-97-04-II-A-1]
EPAEnvironment
National Primary Drinking Water Regulations: Analytical Methods for Regulated Drinking Water Contaminants [W-97-04-I-A-2]
EPAEnvironment
National Primary Drinking Water Regulations: Analytical Methods for Regulated Drinking Water Contaminants [W-97-04-I-A-1]
This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.
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