Stage 1 Disinfectant and Disinfection Byproduct Rule

The Stage 1 Disinfectants and Disinfection Byproducts Rule reduces exposure to disinfection byproducts for customers of community water systems and non-transient non-community systems, including those serving fewer than 10,000 people, that add a disinfectant to the drinking water during any part of the treatment process.

Federal Register Notices

• National Primary Drinking Water Regulations: Disinfectants and Disinfection Byproducts
  December 16, 1998 (Volume 63, Number 241, pages 69389-69476)
  • TEXT | PDF 
• 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 Final Rule -- 66 FR 3770, January 16, 2001
• National Primary Drinking Water Regulations: Disinfectants and Disinfection Byproducts Notice of Data Availability; Proposed Rule
  Federal Register: March 31, 1998 (Volume 63, Number 61)
  
• • Fact Sheet on the Stage 1 Disinfectants and Disinfection Byproducts Rule: New Health Effects Data Available

Fact Sheets

• Stage 1 Disinfectants and Disinfection Byproducts Rule | PDF Version (4 pp, 18K)
• Stage 1 Disinfectants and Disinfection Byproducts Rule: What Does it Mean to You? PDF (62 pp, 146K)
• Stage 1 Disinfectants and Disinfection Byproducts Rule: Frequently Asked Questions PDF (25 pp, 56K)

Quick Reference Guides

• Stage 1 Disinfection and Disinfection Byproducts Rule: A Quick Reference Guide PDF (2 pp, 65 K)
  EPA 816-F-02-021
• Stage 1 Disinfection and Disinfection Byproducts Rule: Laboratory Quick Reference Guide PDF (2 pp, 543 K)
  EPA 816-F-02-021
  • For other quick reference guides visit the drinking water standards - quick reference guides page.

Guidances

• Final Implementation Guidance PDF (108pp, 310K) and Appendices PDF (152pp, 1M)
• Complying With the Stage 1 Disinfectants and Disinfection Byproducts Rule: Basic Guide PDF (76 pp, 241 K)
  EPA 816-B-05-004
  • Supplement A PDF (77pp, 298 K)
    EPA 816-B-05-005
  • Supplement B PDF (51 pp, 646 K)
    EPA 816-B-05-006
• Primacy Agency Data Entry Instructions, with Examples, For Stage 1 Disinfectants and Disinfection Byproducts Rule PDF (150 pp, 3 M)

Training And Training Materials

• Training site for all MDBP rules