An important part of planning is knowing the specific regulations that will affect your community and its public water system(s), and further, knowing when these regulations will be in effect and enforced in your community. The following is a list of drinking water regulations and their effective dates.

You should note that:

• Effective dates are sometimes phased-in by system size, and
• Per the Safe Drinking Water Act Amendments of 1996, new rules are effective 3 years after promulgation, unless EPA deems less time to be feasible.

Additional Information

For additional information call the EPA Safe Drinking Water Hotline at 1-800-426-4791.