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Stage 2 Disinfectants/Disinfection Byproducts Rule
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The Stage 2 Disinfectants and Disinfection Byproducts Rule is a draft federal regulation (NOTE: Stage 1 is a final federal regulation and was published in the Pennsylvania Bulletin on July 21, 2001). The US Environmental Protection Agency is proposing Stage 2 to supplement existing regulations by requiring drinking water suppliers to meet disinfection byproduct maximum contaminant levels at each monitoring site in the distribution system. The proposal seeks to better identify monitoring sites where customers are exposed to high levels of disinfection byproducts. This proposed regulation will reduce byproduct exposure, provide more equitable health protection, and result in lower cancer and reproductive and developmental risks.
Stage 2 D/DBP External Web Links
EPA's Stage 2 D/DBPR Information
This link will take you to EPA's website on the Stage 2 Disinfectants and Disinfection Byproducts Rule. You can view or download technical guidance manuals, obtain fact sheets, and see the federal version of the rule.

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