An Oregon judge has allowed a class-action suit to proceed alleging nitrate-contaminated drinking water reached more than 46,000 people, including about 10,000 children in communities near Boardman, Echo, Hermiston, Irrigon and Stanfield. The complaint — filed by Hagens Berman on behalf of seven plaintiffs — names several companies and public entities and accuses them of a civil conspiracy tied to the pollution. The ruling does not decide the merits but opens the door to discovery, scrutiny and potential accountability; a related March 2026 settlement by Amazon Data Services for $20.5 million indicates some parties may settle rather than litigate.
Oregon Judge Lets Class Action Proceed Over Nitrate-Tainted Water Affecting 46,000 Residents
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An Oregon judge has allowed a class-action lawsuit to move forward alleging that nitrate-contaminated drinking water was supplied to more than 46,000 people — including roughly 10,000 children — in communities around Boardman, Echo, Hermiston, Irrigon and Stanfield in eastern Oregon.
The national law firm Hagens Berman filed the suit on behalf of seven plaintiffs. The complaint names multiple regional companies and public entities, accusing them of knowingly contaminating a shared water supply with nitrates and participating in an alleged civil conspiracy tied to the pollution.
Defendants named in the complaint include:
- Port of Morrow
- Columbia River Processing
- Portland General Electric
- Threemile Canyon Farms
- Madison Ranches
- Lamb Weston
The judge’s decision only permits the case to proceed; it does not determine the truth of the allegations. Allowing the suit to continue opens the door to discovery, depositions and greater judicial scrutiny that could produce evidence, accountability and potential relief for affected residents.
Plaintiffs and their attorneys describe the matter as both a public-health and public-trust issue. They allege chemicals were introduced into the water system as a cost-saving disposal method tied to production processes — a practice the complaint says put working families at risk.
Health experts cited in the complaint warn that nitrate exposure in drinking water can carry long-term risks, including elevated cancer risk, thyroid disorders and risks to fetal development. Plaintiffs say the harmed population is largely lower-middle and middle-class families with limited political or economic leverage to challenge large corporate interests.
The litigation has already produced at least one major settlement: in March 2026, Amazon Data Services agreed to a $20.5 million settlement in connection with the dispute, suggesting some parties may opt to resolve claims rather than litigate through trial.
“This is a cheap way for them to get rid of the materials they need to get rid of, and the people who are being harmed by it basically have no power,” said Hagens Berman co‑founder Steve Berman.
Next steps in the case will likely include written discovery, document production and depositions that could clarify how the contamination occurred and whether stronger safeguards are required to protect drinking-water systems going forward.
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