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Oregon Drinking Water Services (DWS) administers the certification program for drinking water system operators. All community and non-transient non-community water systems must be under the supervision of a certified operator. Trained and certified operators are necessary to ensure that the systems are managed in a manner that fully protects public health and the environment.
Water systems with 151 or more connections require certification at levels 1-4 in either treatment and/or distribution. Learn more...
Water systems with fewer than 151 connections (and utilizing groundwater as their only source or purchasing all their water from another public water system without adding any additional treatment) require a small water system "S" certification. Learn more...
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