Frequent Questions

What are the National Secondary Drinking Water Regulations under the Safe Drinking Water Act (SDWA)?

The National Secondary Drinking Water Regulations are non-enforceable guidelines. They are established as guidelines to assist public water systems in managing their drinking water for aesthetic considerations, such as taste, color, and odor. These contaminants are not considered to present a risk to human health at the secondary maximum contaminant level (SMCL).

Additional information is available online at http://water.epa.gov/drink/info/index.cfm.

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