Frequent Questions

Will a reporting violation (e.g., a system submitted its quarterly data on April 22, 12 days after the required date of April 10) make a system ineligible for a 40/30 certification?

If all other 40/30 certification requirements are met, the system could still qualify for a certification.

For additional guidance on the Stage 2 Disinfectants and Disinfection Byproducts rule please visit

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