Walla Walla Foundry, Walla Walla
Air quality notice of construction application – Opportunity to request a public comment period
Sept. 25, 2025, 12 a.m. - Oct. 10, 2025, 11:59 p.m. PT
We propose to approve Walla Walla Foundry's air quality notice of construction (NOC) application. We will hold a public comment period if one is requested.
Walla Walla Foundry submitted a notice of construction application for their existing contemporary art sculpture manufacturing facility located at 405 Woodland Avenue, in Walla Walla. They propose to increase their use of mild steel welding electrodes to 4,800 pounds per year, from the current 50 pounds. With existing filtration controls, this change will result in increased emissions of 26.23 pounds per year in particulate matter (PM).
The foundry produces multimedia sculptures that involve:
- Mold production using wax and ceramic materials
- Fabrication involving abrasive blasting, welding, tooling, milling, and abrasive surfacing of metal, plastics, wood, and glass
- Surface coating operation applying patina chemicals, paint, and topcoat sealing systems
Document for review
We determined this proposal satisfies the requirements of Chapter 173-400 WAC. We plan to approve the application. We will hold a public comment period on a draft air permit ("approval order") that includes this change if we receive a written request by October 10, 2025.
To request a public comment period, use one of the ways listed below.
To find out if there are more records for this project, contact our Public Records Office.
This notice was posted on September 25, 2025.
Background
A notice of construction permit is required before installing a new source of air pollution or modifying an existing source of air pollution. This permit is sometimes called a "pre-construction permit" because a business must have one before starting construction or operating their business.
A notice of construction air permit limits the amount of air pollutants a business can emit.
Comment online
- Submit your comment by email: jenny.filipy@ecy.wa.gov
Comment by mail
Washington Department of Ecology Eastern Regional Office
4601 North Monroe Street
Spokane, WA 99205-1295
Questions
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