Skip to main content

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

Oregon Health Authority logo

Drinking Water Rules

Current Rulemaking

The Oregon Health Authority, Public Health Division (OHA), Drinking Water Services is proposing permanent amendments (changes) to Oregon Administrative Rules chapter 333, division 061. OHA is inviting public comment about the proposed amendments. Final rules will be filed after consideration of all comments.

The proposed amendments are intended to adopt revisions to the federal consumer confidence rule, focus significant deficiencies in OAR 333-061-0076 toward direct pathways for contamination to enter drinking water and to clarify or improve miscellaneous other rule text so that public drinking water requirements align with federal regulations or are easier to implement.

Please review the documents below for more information:


You are invited to provide comment regarding the proposed rule amendments using one of three options:

  • Provide oral (spoken) testimony during a public hearing on November 19, 2025, at 10:00 a.m. Attend via video/telephone using Microsoft Teams.
    • To provide oral testimony during this hearing:
      • Join using the Meeting URL.
      • The join link for the meeting in the Notice of Proposed Rulemaking under “Remote Meeting Details” using the “Meeting URL.”
      • You may also contact the Public Health Division Rules Coordinator at publichealth.rules@odhsoha.oregon.gov to sign-up to provide oral testimony and receive the link for the Microsoft Teams video conference via calendar appointment. 
    • For audio only, dial 971-277-2343 and use phone conference ID 603 518 809#.
  • Submit written comments before 5:00 p.m. on November 30, 2025.
    • Email to: Public Health Division Rules Coordinator at publichealth.rules@odhsoha.oregon.gov.
    • Fax: send comments to 971-673-1299.
    • Regular mail must be postmarked by 5:00 p.m. on November 30, 2025. Mail comments to: 
OHA, Public Health Division 
Brittany Hall, Administrative Rules Coordinator 
800 NE Oregon Street, Suite 930
Portland, OR 97232

For a summary of each rule amendment or specific information regarding the changes, please refer to the following information:

  • Amend OAR 333-061-0032: The Treatment Requirements and Performance Standards for Surface Water, Groundwater Under the Direct Influence of Surface Water, and Groundwater rule will be amended to include rule text previously cited as a sanitary survey significant deficiency.
  • Amend OAR 333-061-0036: The Sampling and Analytical Requirements rule will be amended to include rule text previously cited as a sanitary survey significant deficiency, clarify a requirement that initial distribution system evaluation plans must be approved prior to the evaluation and change the criteria needed to return coliform monitoring to a routine quarterly frequency at non-community water systems. 
  • Amend OAR 333-061-0040: The Reporting and Record Keeping rule will be amended to include reporting and recordkeeping requirements previously included in OAR 333-061-0043.
  • Amend OAR 333-061-0043: The Consumer Confidence Reports rule will be amended to include federal rule revisions.
  • Amend OAR 333-061-0061: The Capacity Requirements for Public Water Systems rule will be amended to remove the requirement for capacity assessment at new transient non-community water systems.
  • Amend OAR 333-061-0076: The Sanitary Surveys rule will be amended to focus the significant deficiencies that can be cited during a sanitary survey toward only direct pathways for contamination to enter a water system.
  • Amend OAR 333-061-0220: The Classification of Water Treatment Plants and Water Distribution Systems rule will be amended to process a housekeeping correction in Table 51.

To stay updated sign up to receive DWS Rule News 


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.