NCW — Alcoa Wenatchee Works in Malaga and Imerys Minerals California, Inc. in Quincy were both fined for exceeding pollution limits, the state Department of Ecology said today.
Alcoa discharged excessive amounts of aluminum and fluoride to the Columbia River on May 3, 2012, violating daily limits allowed by its pollution discharge permit, an Ecology news release said.
Aluminum discharges were nearly 30 pounds more than allowed, and fluoride discharges were 76 pounds over the daily allowance, the release said.
The company was fined $8,000.
In Quincy, Imerys Minerals California, Inc., faced a $120,000 fine for emitting more particle pollution into the air than allowed under its air quality permit for as many as 300 days.
The company processes diatomite, a fossilized mineral used in beer and wine making, pharmaceutical manufacturing, motor oil processing, swimming pool filtering and food processing.
In July 2010, Ecology inspectors found Imerys emissions were well above its permit standards. Those emissions were even higher in January 2011, the agency said.
By May 2011, the emissions again met the permit limit, it said.
As part of a settlement reached in December, the company paid a $60,000 fine and provided another $60,000 to pay for reducing diesel emissions from school buses in the Quincy School District.
K.C. Mehaffey: 997-2512