Results from the IDSE standard monitoring should not be used to determine compliance with the MCLs of the Stage 1 DBPR rule (71 FR 388, 419-420; January 4, 2006).
Additional information on IDSE monitoring is available in the Initial Distribution System Evaluation Guidance Manual (EPA815-B-06-002, January 2006) located online at http://water.epa.gov/lawsregs/rulesregs/sdwa/stage2/compliance_idse.cfm.
Should results from the Initial Distribution System Evaluation (IDSE) standard monitoring required under the Stage 2 Disinfectants and Disinfection Byproducts Rule (DBPR) be used to determine compliance with maximum contaminant levels (MCLs) of the Stage
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