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Specialty Minerals, Wallula

We regulate the air, water, and hazardous waste activities at the Specialty Minerals chemical plant in Wallula.

Facility information

  • This facility makes precipitated calcium carbonate by reacting carbon dioxide from the Boise, Walulla pulp and paper mill or liquid carbon dioxide with slaked lime.
  • Wastewater from the process is sent to the Boise mill for treatment. The mill then sends it to the Columbia River.

Permit information

Specialty Minerals, Wallula contacts

Company website
Facility phone: 509-545-9777
Location: 31829 US Highway 12, Wallula, Wash.