Welcome to Data Online
, Oregon's Drinking Water Services
data access site.
Here you can access a fair amount of data on public water systems in Oregon. You can find data such as coliform testing, chemical testing, contacts, violations, enforcements, public notices, and basic system information.
Use the Water System Search
page to find a water system. You can enter the water system ID number if you know it, or you can search by water system name or location.
Data shown here is "live" data. That means it's 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 all water system sampling, inventory, and compliance errors please phone Chuck Michael, DWS Compliance Officer, at 971-673-0420.
is where you'll find the various queries to view data we currently have. The choices are explained there.