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Oregon Health Authority Public Health Division Drinking Water Services (DWS)
Water Resources Board
Oregon Department of Environmental Quality (DEQ)
Oregon Environmental Quality Commission (EQC)
U.S. Environmental Protection Agency (EPA) Region 10
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Oregon has been granted primacy by the U.S. Environmental Protection Agency (EPA) to administer the drinking water protection requirements under the federal Safe Drinking Water Act (SDWA). The state generally follows the federal maximum contaminant level (MCL) rules.
• Administration and enforcement. Oregon Health Authority's Drinking Water Services (DWS) is responsible for administering and enforcing the state and federal SDWA requirements in Oregon. In addition, the Water Resources Board regulates potable water supply wells.
Water suppliers are responsible for taking all reasonable actions to ensure that the water delivered to water users does not exceed maximum contaminant levels, to ensure that water system facilities are free of public health hazards, and to ensure that water system operation and maintenance are performed as required by these rules. Such actions include, but are not limited ...