Simplot Soilbuilders Sunnyside
300 S 1st St, Sunnyside, WA 98944


Ecology is providing an opportunity for the public to comment on the Agreed Order for the completion of a Remedial Investigation (RI) and Feasibility Study (FS) for the Simplot Soilbuilders Sunnyside.

An Agreed Oder is a legal agreement between Ecology and the Potentially Liable Persons (PLPs) outlining the expectations, process, and schedule for cleanup at the site.

Submit comments by July 25 to Frank Winslow

Simplot Soilbuilders Sunnyside - Photo Courtesy of Google Streetview
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In the 1960s, the site began as Simplot Soilbuilders in Sunnyside as an agricultural distribution facility for fertilizers, pesticides, and soil amendments. It is now operating as Simplot Grower Solutions.

Environmental investigations in 2007 and 2008 revealed agricultural chemicals, diesel, and gasoline contamination in soil and groundwater. In 2012, contaminated soil from a fertilizer spray equipment rinse area on the site was excavated and removed. In 2011, the main warehouse, office building, fertilizer storage tank area, and containment system were removed. A new office and concrete basin containment structure was built. A maintenance shop remains on the site.

A Remedial Investigation (RI) and Feasibility Study (FS) will be completed as part of the Agreed Order. The RI will show how far the contamination has gone, and the FS will detail different options, with costs and timelines, to do the cleanup.



Map showing site location as Yakima County, WA SITE INFORMATION


View Electronic Documents

Cleanup Site Details Report

Facility Site ID: # 76742139

Cleanup Site ID: 2558

Sunnyside, Yakima County

Status: Cleanup Started   Get definitions of Status terminology

Document Repositories:

Central Regional Office
1250 W Alder St
Union Gap, 98903-0009