Frequent Questions

A consecutive ground water system serving fewer than 3,300 persons chooses the standard monitoring option for compliance with the Initial Distribution System Evaluation (IDSE) requirement of the Stage 2 Disinfectant and Disinfection Byproducts (DBP) Rule.

Consecutive ground water systems serving fewer than 3,300 persons are required to have two standard monitoring locations as indicated in 40 CFR 141.601(b)(1). This system does not have to include a sampling location at or near the connection to the wholesale system.
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