Reported / Citable
Background
Washington State and the Okanogan Highlands Alliance filed separate Clean Water Act citizen suits against mining companies over alleged water pollution. The actions were consolidated and litigated together, but the private group later negotiated a settlement without the State’s participation.
After approving that consent decree, the district court held that it precluded Washington’s claims and entered judgment on the pleadings for the companies. The State had learned of the deal only shortly before submission and was not a party to it.
The Court’s Holding
The Ninth Circuit reversed because Washington was neither a party to the consent decree nor in privity with the private organization. Parallel claims and coordination did not establish the type of legal relationship or adequate representation needed to bind a nonparty.
No recognized nonparty-preclusion exception applied. The Clean Water Act expressly identifies circumstances in which government enforcement may bar later citizen suits, but it does not say that one citizen suit forecloses another, including one brought by a state. Nor did the federal statutory waiting period for consent decrees impose an objection duty on Washington; that period protects federal government interests.
Key Takeaways
- Consolidation and coordinated litigation do not by themselves create privity for claim preclusion.
- A private environmental plaintiff ordinarily cannot settle away a nonparty state’s claims.
- Nonparty preclusion requires a recognized exception, such as genuine adequate representation or an express statutory scheme.
- The Clean Water Act consent-decree waiting period does not compel other citizen plaintiffs to object.
- Defendants seeking comprehensive peace must obtain agreement from each claimant whose rights they intend to resolve.
Why It Matters
The ruling protects independent public-enforcement interests and clarifies settlement risk in multiparty environmental litigation throughout the Ninth Circuit. Defendants seeking global peace must negotiate with each claimant whose claims they want resolved rather than assume one consent decree will bind coordinated nonparties.
Parties in consolidated cases should define who participates in mediation and what any agreement will release. A settlement may still affect remedies or practical litigation strategy, but claim preclusion requires identity of parties or a recognized substitute. The court expressed no view on whether Washington can prove the alleged permit violations, leaving the environmental merits for the district court on remand. Government agencies and private groups with aligned goals should also document whether either purports to represent the other’s interests before settlement discussions begin.
For consent-decree review, practitioners should distinguish the federal government’s statutory opportunity to object from the rights of other plaintiffs. Silence during the waiting period did not transform Washington into a party or supply the missing privity.