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Water: Microbial & Disinfection Byproducts Rules

MDBP Rules: Implementation Activities

Microbial and disinfection byproducts rules:
Implementation

Disinfection of drinking water is one of the major public health advances of the 20th century.  However, the disinfectants themselves can react with naturally-occurring materials in the water to form unintended byproducts which may pose health risks.  A major challenge for water suppliers is balancing the risks from microbial pathogens and disinfection byproducts. The Stage 1 Disinfectants and Disinfection Byproducts Rule and Interim Enhanced Surface Water Treatment Rule together address these risks. 

Implementation Guidance for Surface Water Treatment Rule, March 1991 Edition

Technical guidances (Errata sheet)

Quick Reference Guides (ALL ABOUT PDF FILES)

Training And Training Materials 

Implementation Guidance

Interim Enhanced Surface Water Treatment Rule
Stage 1 Disinfectants/Disinfection Byproducts Rule
Surface Water Treatment Rule
Plain English Guidance
Frequently Asked Questions
Fact Sheets
Final Rule Data Entry Instructions

  • Final IESWTR Data Entry Instructions - WPD ~ PDF
  • Final Stage 1 DBPR Data Entry Instructions - WPD ~ PDF

You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader.

Revisions to the Interim Enhanced Surface Water Treatment Rule (IESWTR), the Stage 1 Disinfectants and Disinfection Byproducts Rule (Stage 1DBPR), and Revisions to State Primacy Requirements To Implement the Safe Drinking Water Act (SDWA) Amendments

(read online in HTML)  (PDF version

Interim Enhanced Surface Water Treatment Rule

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