Oregon drinking water comes from groundwater wells. Based on the most recent monitoring data, 10 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, and 6 others. PFAS compounds have been detected at trace levels in Oregon water. Water hardness is 320 mg/L (very hard), which can cause scale buildup in appliances and reduce soap effectiveness.
Contaminants detected in Oregon water
10 total
Detection does not necessarily mean unsafe levels. See individual reports for concentrations and EPA limits.
Oregon tap water has 1 contaminant currently measured above EPA legal standards (Maximum Contaminant Levels). 10 contaminants have been detected in the water supply, including Lead, Nitrate, Copper, Radium, Total Trihalomethanes. View the detailed report for each water system to see specific levels, how they compare to both legal limits and health guidelines, and what actions to take.
What contaminants are in Oregon water?
Monitoring has detected 10 contaminants in Oregon's water supply: Lead, Nitrate, Copper, Radium, Total Trihalomethanes, Haloacetic Acids (HAA5), Barium, Fluoride, Orthophosphate, PFBA (Perfluorobutanoic Acid). Additionally, 4 PFAS compounds have been detected at trace levels. 1 of these are above EPA legal limits. See individual system reports for concentrations relative to EPA limits.
Does Oregon water have PFAS?
Yes. 4 PFAS compounds have been detected in Oregon's water supply at trace levels. PFAS are sometimes called "forever chemicals" because they do not break down in the environment. The EPA has set Maximum Contaminant Levels for several PFAS compounds. View the detailed report for specific concentrations.
Is Oregon water hard?
Yes. Oregon water has a hardness of 320 mg/L (very hard). Hard water is not a health concern but can cause scale buildup in water heaters and appliances, reduce soap effectiveness, and leave mineral deposits. Water softeners or conditioning systems can address hardness.
Where does Oregon get its drinking water?
Oregon's drinking water comes from groundwater wells that draw from underground aquifers. The water is treated and tested according to Illinois EPA and EPA requirements before distribution. Oregon is served by one water system: OREGON.
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