40 CFR 143.3

§ 143.3 Secondary maximum contaminant levels.

United States · 40 CFR — Protection of Environment · Status: effective

Cite this

Citation: 40 CFR 143.3, § 143.3 Secondary maximum contaminant levels, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/182185
Permanent ID: ys:prov:182185@1
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Full text

The secondary maximum contaminant levels for public water systems are as follows: These levels represent reasonable goals for drinking water quality. The States may establish higher or lower levels which may be appropriate dependent upon local conditions such as unavailability of alternate source waters or other compelling factors, provided that public health and welfare are not adversely affected.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.