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Water: Microbial & Disinfection Byproducts Rules

Microbials and Disinfection Byproducts (MDBP) Tools

MDBP Tools Released

The LT2/Stage2 Data Collection and Tracking System (DCTS) and IDSE Tool are ready to be released to the public.

DCTS users can request access now to have access as soon as the DCTS is available. For detailed instructions, see the Instructions for how to register for the DCTS (PDF, 4 pp 22 K)

This site contains tools developed to assist public water systems, laboratories, EPA, and states in implementing the Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

The Information Processing and Management Center and Data Collection & Tracking System provides a central processing system to help manage submissions and notifications associated with Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule implementation.

  • LT2/Stage 2 Data Collection and Tracking System
    This page contains a tool for both the Long Term 2 Enhanced Surface Water Treatment Rule and the Stage 2 Disinfectants and Disinfection Byproducts Rule that can be used by public water systems and laboratories to submit required reports and monitoring data, including Grandfathered data.
  • Initial Distribution System Evaluation (IDSE) Tool
    This page contains a tool that public water systems can use to determine their requirements, select the best IDSE option for their system, and complete their IDSE submission online.

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