Lane Mountain, Valley

Lane Mountain submitted a notice of construction (NOC) application for their facility located at 3119 Highway 231, Valley, in Stevens County. Lane Mountain is adding a new sand blending and screening process at the facility, using existing permitted equipment. This new process includes:

• Using existing sand processed from the facility.
• Importing an alternate type of sand for blending.
• Installing an additional baghouse for other processes that are already permitted.

The new baghouse will reduce fugitive air emissions for workers' health. A baghouse is an industrial dust collector that uses felt bags to filter dusty air produced during manufacturing and processing.

Documents for review

• Lane Mountain notice of construction (NOC) application and associated documents
• Lane Mountain State Environmental Policy Act (SEPA) mitigated determination of nonsignificance (MDNS)

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 February 5, 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 January 21, 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.