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Drinking Water Rules

Current Rulemaking

No current rulemakings.

Previous Rulemaking
Permanent rule amendments requiring an examination to be certified as the operator of a small water system.

The Oregon Health Authority, Public Health Division (OHA) permanently amended Oregon Administrative Rule 333-061-0228 related to the training and certification of individuals as small water system operators. This change requires operators to pass an examination to earn this certification, beginning on August 1, 2022. The amendments were necessary to be consistent with federal guidelines and thereby preserve federal grant funding, because federal guidelines require an examination before operator certification is granted.

Small water system certification is required at community and non-transient non-community public water systems serving 150 service connections or less, and that use only groundwater sources or where finished water is purchased from another public water system.  Visit the Small Water System Operator page for more information.

Specific amendments and proposed rule language are identified in the documents available below, which include:

Oregon Revised Statue (ORS) Oregon Drinking Water Quality Act

Enacted in 1981, the statute (periodically amended) includes Oregon Revised Statute (ORS) 448.119 to 448.285; 454.235; 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, 2021.

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

Quick links to specific rules are provided below:

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