CORVALLIS, Ore. — A Halsey pulp mill and the environmental group Willamette Riverkeeper have settled a dispute over pollution in a Willamette River mixing zone.
The Corvallis Gazette-Times reported that Cascade Pacific Pulp pledged a dredging project to increase the amount of water flowing through the mixing zone.
Willamette Riverkeeper had threatened to sue Cascade Pacific Pulp over a coffee-colored, foul-smelling waste plume it claimed violated the company’s discharge permit.
Cascade Pacific is allowed to discharge up to 17,000 pounds a day of process wastewater from the pulp mill and the adjoining Georgia-Pacific tissue plant.
The liquid waste is supposed to be dispersed by the river before it leaves a defined mixing zone. But a gravel bar had built up just upstream, reducing the amount of water flowing past the diffuser pipes.
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