314 CMR 4.00: The Massachusetts Surface Water Quality Standards

These regulations implement provisions of the federal Clean Water Act, which protects the nation's waters. The Surface Water Quality Standards designate the most sensitive uses of Massachusetts waters and provide criteria for evaluating water quality to support those uses.

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314 CMR 4.00 Contact Information

Current Regulations

These regulations, 314 CMR 4.00, became effective as of December 6, 2013.

This is an unofficial version of Commonwealth regulations and is posted here for the convenience of the public. It is not an official statement of the regulations.

Proposed Amendments & Public Comment

There are no proposed regulations out for public comment at this time.

Recently Promulgated Amendments

There have been no recent amendments to these regulations.

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