Legal Notice

| March 6, 2013 12:00 PM

Northwest Pipeline Moses Lake Meter Station

13579 Wheeler Road NW

Moses Lake, Grant County, Washington

CSID 2354

FSID 605

The site is made up of two meter stations that originally regulated and metered the distribution of natural gas to a local distribution company or customer. These two stations were adjacent to each other within a fenced enclosure. One station was known as the Moses Lake meter station and the other as the U&I Sugar meter station.

An assessment of the site was conducted in 1990, and inorganic mercury was found in soil at the meter stations. The main source of the contamination was most likely from releases of mercury during maintenance of equipment. Mercury releases from thermowells used to measure gas temperatures were another source of contamination. The level of mercury in soil exceeded state standards, therefore cleanup was necessary.

Fifteen drums of gravel and soil were removed from under and around the former meter stand and associated piping of the Moses Lake meter station. Four drums of gravel and soil were removed from under and around the former U&I Sugar meter station. Approximately 132 tons of soil were excavated and transported off-site for disposal in 2011.

Follow-up sampling indicates all contaminated soil was removed and no further actions are required at this site. The Moses Lake meter station was retired in 2000. The current Moses Lake meter station is now located in the former U&I meter building.

Ecology’s Voluntary Cleanup Program provided review of the cleanup actions at the site. As a result of the completed work, Ecology plans to remove the site from the Hazardous Sites List, after public comment is received and considered.

Documents associated with the site may be reviewed at the following locations: WA Department of Ecology, 4601 N. Monroe St., Spokane, WA 99205-1295, call Kari Johnson for appointment 509/329-3415; Ecology’s Website https://fortress.wa.gov/ecy/gsp/Sitepage.aspx?csid=2354

Comments and questions may be submitted to Patti Carter at the Ecology address above or by

e-mail at patti.carter@ecy.wa.gov or phone 509/329-3522.

Para asistencia en Español Gregory Bohn 509/454-4174

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Pub.: March 6, 2013