Palouse Producers

During our site visit on April 20, 2026, we found the cleanup continues to prevent people and animals from contacting remaining contamination. Monitoring wells are accessible and in good condition. We worked with developers to safely build two businesses on the cleaned up site. Areas not covered by buildings are covered with gravel and maintained. The Palouse River shoreline is landscaped with plants.

We also reviewed groundwater monitoring data. Contamination has decreased, except for diesel in one well. Increasing the groundwater sampling frequency from once every five years to once every two years will help find out why.

Learn more

• Review the draft periodic review.
• Visit our Palouse Producers cleanup site page.

Next steps

Ecology will review all comments received during the comment period and update the periodic review if needed. If no significant changes are made, the periodic revi​​ew will become final. If significant changes are made, an additional public comment period will be held. We will hold a public meeting if 10 or more people request one.​​​

Site history

The site was used for over a century for commercial activities serving the agricultural industry (service station, blacksmith, welding shop). Many of the past uses could have contributed contamination.

The 2011 cleanup included installing three groundwater monitoring wells, restricting groundwater use at the property, and removing contaminated soil from the surface to 7 feet underground.

About periodic reviews

We review conditions at sites where some contamination remains about every five years, to make sure the cleanup is still effective. This is the second review for this site.