Frequent Questions

Must challenge testing be conducted for individual sources/systems or can it be done by a manufacturer for a specific type/quality of water?

Both of these options are acceptable.  A system may choose to conduct individual tests or can rely on tests from the manufacturer.

For additional guidance on the Long Term 2 Enhanced Surface Water Treatment Rule please visit http://water.epa.gov/lawsregs/rulesregs/sdwa/lt2/index.cfm.

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