New City Cleaners
747 Stevens Dr, Richland, WA 99352


Ecology is providing an opportunity for the public to comment on the Remedial Investigation and Feasibility Study (RI/FS) for the New City Cleaners site, located at 747 Stevens Drive in Richland. The RI/FS is required under the existing Agreed Order. A Remedial Investigation uses data collected to determine how far the contamination has spread, and the Feasibility Study outlines options and costs for cleaning up the site. An Agreed Order is a legal agreement between Ecology and the Potentially Liable Persons(PLPs) outlining the expectations, process, and schedule for site cleanup.

Ecology is asking for your comments on the Remedial Investigation and Feasibility Study.

You are invited to:

Review the Remedial Investigation/Feasibility Study Report New City Cleaners,” dated December 20, 2019.

Send your comments to Ecology for consideration. Comments will be accepted March 23, 2020, through April 22, 2020.  You may also submit your comments online.

The Remedial Investigation/Feasibility Study is available for review above and at the “View Electronic Documents” link in the right navigation pane.  Due to unforeseen circumstances, our standard physical locations are all closed; documents are currently only available electronically only. This document is also available for review listed in the right navigation pane.  Please submit any comments and technical questions to Kyle Parker, Site Manager, at Ecology's Central Regional Office.

Para asistencia en español:  To request materials in a format for the visually impaired, visit, call Ecology at (360) 407-7668, Relay Service 711, or TTY 877-833-6341.


The site has been operating as a dry cleaner since the late 1940s. Stoddard solvent, a flammable petroleum mixture stored in two underground storage tanks (USTs), was used until 1974 when the use of PCE began. PCE, a common chemical used in the dry cleaning process, was delivered in 55-gallon drums and stored on a rack outside onsite.

The Site is currently on Ecology’s Hazardous Sites List with a ranking of “1”.  Sites on the Hazardous Sites List are a priority for Ecology, and have completed a Site Hazard Assessment (SHA).  A SHA provides information about the environmental risk of the Site. Risk is based on the amount of contaminants, how toxic they are, and how easily they can come in contact with people and the environment.  Sites are ranked relative to each other on a scale of “1” to “5”; with a rank of “5” being the lowest.


After the discovery of PCE in groundwater, four underground storage tanks (some containing petroleum products, some containing dry cleaning fluids) were removed from the site in 1992.

During the tank excavation, some soil was also removed and stored on the New City Cleaners property. In 2000, approximately 5,000 tons of contaminated soil was excavated and transported offsite. This was intended to control the source of groundwater contamination. Associated structures (wood storage sheds, landscaping, fences, and asphalt) were also removed, and the excavation was backfilled and compacted with clean fill dirt. Soil was not excavated if it was below the water table or if excavation would threaten the structural integrity of the building or two utility poles.

A pilot study was conducted to determine the effectiveness of bioremediation. Bioremediation commonly uses oxygen to create conditions in the groundwater to help microorganisms that breakdown PCE to grow.

Samples collected since 2000 indicate high levels of PCE and TCE in groundwater remain on both the New City Cleaners property and on other nearby properties.

In April 2009, Ecology entered into an Agreed Order with the former owners to complete a Remedial Investigation/Feasibility Study and a draft Cleanup Action Plan.

You can find site documents by using the “View Electronic Documents” link in the bar on the right, or requesting information from the Central Regional Office public records coordinator.


Map showing site location as Benton County, WA SITE INFORMATION


View Electronic Documents

Cleanup Site Details Report

Facility Site ID: # 327

Cleanup Site ID: 4894

Richland, Benton County

Status: Cleanup Started   Get definitions of Status terminology

Comment Period:
MARCH 23, 2020 - APRIL 22, 2020

Kyle Parker
Site Manager

Rhonda Luke
Public Involvement Coordinator

Document Repositories:

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