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Comment period

Microsoft East Wenatchee Data Center

Notice of Construction (NOC) application

Sept. 17, 2024, 12 a.m. - Oct. 17, 2024, 11:59 p.m.

We propose to approve Microsoft Data Center's East Wenatchee air quality notice of construction (NOC) application.

Microsoft is proposing to expand its existing data center in East Wenatchee. Microsoft proposes to construct and operate two more data centers (EAT06, and EAT09) at 875 Urban Industrial Way, in East Wenatchee. The new data centers will include an additional 20 3.0-MWe generators and 2 0.5-MWe generators. 

The 20 3.0‑MWe generators will meet state and federal emission standards. They will be equipped with:

  • Passive catalyzed diesel particulate filters.
  • Selective catalytic reduction to reduce emissions.

Documents for review

We determined this proposal satisfies the requirements of Chapter 173-400 WAC. We plan to approve the application.

To comment or request an online public hearing by Oct. 17, 2024, 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 Sept. 17, 2024

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.

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Ryan Vicente
Ecology Central Region Office
1250 West Alder Street
Union Gap , WA 98903-0009
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Ryan Vicente
Environmental Engineer
ryan.vicente@ecy.wa.gov
509-731-5292
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