STATE OF WASHINGTON DEPARTMENT OF ECOLOGY

NOTICE OF APPLICATION TO MODIFY AN AIR POLLUTION SOURCE REGULATED BY A VOLUNTARY EMISSION LIMITATION (SYNTHETIC MINOR) APPROVAL ORDER

NOTICE OF APPLICATION TO MODIFY AN AIR POLLUTION SOURCE

REGULATED BY A VOLUNTARY EMISSION LIMITATION

(SYNTHETIC MINOR) APPROVAL ORDER

The State of Washington Department of Ecology (Ecology) has received an application to expand

operations regulated by an Approval Order for an existing aerial work platform manufacturing

facility in Moses Lake, WA. The application was made by Terex Aerial Work Platforms (Genie

Industries) for the operations at 8987 Graham Road, N.E., Moses Lake, WA (The Terex facility is

located next to Larsen Airfield near Moses Lake, WA). The legal description of the location is the

NW _ of the SW _ of Section 27, Township 20N, Range 28E, Willamette Meridian.

Activities that will increase at the facility under this proposal include powder coating, welding,

cutting, and general metal equipment fabrication. Cutting and welding emissions of manganese

increase significantly, triggering an health impact evaluation by the Washington Department of

Ecology toxicologists. The impacts of manganese were determined acceptable. Facility totals of

criteria pollutants include 18.4 tons per year NOx, 16.93 tons per year CO, 86.7 tons per year

VOC (the synthetic minor pollutant) and 21.3 tons per year total particulate matter.

After review of the completed Notice of Construction application and other information on file

with the agency, Ecology has made a preliminary determination that this proposal will conform to

all requirements as specified in Ch. 173-400 WAC and Ch 173-460 WAC. Copies of the

Preliminary Determination and other pertinent information are available for public review at

Ecology, 4601 N. Monroe, Spokane, WA, 99205 and at the Grant County Planning Department,

264 West Division Ave , Ephrata WA.

The public is invited to comment on the project by submitting written comments to Robert Koster

at the above Spokane address by the end of the day on April 13, 2015. A public hearing may be

held if significant public interest is determined to exist.

#03034/4324647

Pub.: March 12, 2015