Water testing in Oregon
Lowest price: Free, Oregon State University Extension Service, Well Water Program.
OSU Extension Well Water Program Free Nitrate Screening
Free
free Nitrate Screenings at our events
- Nitrate
Contact the OSU Well Water Program to find or request a free nitrate screening event in your community.
Open to Oregon well owners when the Well Water Program holds a screening event in their community.
Checked October 1, 2026. Report a change
Certified labs: Oregon Health Authority, Drinking Water Services