Frequent Questions

If a system commits to providing treatment instead of conducting source water monitoring, can they later decide to conduct source water monitoring?

Systems may retract the intent to treat before the applicable deadline to begin source water monitoring.  However, after the deadline to begin source water monitoring has passed, it may be difficult for the system to meet subsequent deadlines.  Therefore a system should think carefully before submitting or retracting an intent to treat notice.

For additional guidance on the Long Term 2 Enhanced Surface Water Treatment Rule please visit

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