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Group A Public Water Supplies

Chapter 246-290 WAC

The Office of Drinking Water has updated the *Group A Public Water Supplies publication, DOH 331-010 (PDF 1.5 mb). We added the new requirements for the federal Stage 2 Disinfectants and Disinfection Byproducts Rule. (*After opening the PDF file, note the bookmarks in the left column to help you navigate the document.)

Due to the high cost of printing and mailing this large publication, it is only available online.

You can also download EPA's Code of Federal Regulations (CFR) adopted by reference (PDF 1.1 mb).

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Last Update : 01/27/2010 10:45 AM