Skip to main content

Oregon State Flag An official website of the State of Oregon »

Oregon Health Authority

Drinking Water Rules

Current Rulemaking

There is no current rulemaking at this time.

Oregon Revised Statute (ORS) Oregon Drinking Water Quality Act

Enacted in 1981, the statute (periodically amended) includes Oregon Revised Statute (ORS) 448.119 to 448.285454.235; and 454.255. The purpose of the above act is (in part) to:

  • Ensure that all Oregonians have safe drinking water;
  • Provide a simple and effective regulatory program for drinking water systems; and
  • Provide a means to improve inadequate drinking water systems.

Current Oregon Administrative Rules (OARs) for Drinking Water

ORS 448.131 authorizes Drinking Water Services (DWS) to adopt administrative rules to ensure safe drinking water. OAR Chapter 333 Division 061 is reserved for regulations regarding public water systems and was last amended on January 1, 2025.

A complete set of the drinking water rules is in Chapter 333, Division 061.

Quick links to specific rules are provided below:

The rules document provided by DWS is formatted for accessibility and ease of use and is not a legal or official version of the rules filed with and published by the Oregon Secretary of State as of February 1, 2023. View the official version of the rules here.