Welcome to Data Online, the data access site for Oregon Drinking Water Services.

Here you can access data on public drinking water systems in Oregon, such as coliform and chemical testing, violations, enforcements, public notices, and basic system information.

The Search Options page explains many of the data pages that are available. Use the Water System Search page to find a water system by water system ID number, name, or location.

Data shown here are "live" data. That means they're as current as the reports we have in our system. This is the same data that Drinking Water Services (DWS) staff see and use. If something is missing, that usually means it has not been reported to us or we have not entered it yet. If you (water system personnel, county staff, lab staff, etc.) find a report is missing, please forward a copy to us at: DWS, PO BOX 14350, Portland, OR  97293.

For questions or updates regarding water system sampling, inventory, or compliance, please contact Drinking Water Services at 971-673-0405 or Info.DrinkingWater@odhsoha.oregon.gov.

See the Contact Us page on the main Drinking Water site for more contact options.