Facility Site ID: 482 Cleanup Site ID: 3399

What Is The Yakima Railroad Area?

Southgate Laundry is a part of the Yakima Railroad Area (YRRA). The Yakima Railroad Area is approximately six square miles in size and includes parts of the cities of Yakima and Union Gap. The Yakima Railroad Area groundwater is contaminated with tetrachloroethylene (PCE or PERC) from past industrial use, and is centered around the railroad/industrial corridor of the greater Yakima area.

PCE is a manufactured chemical that is widely used for dry cleaning of fabrics and for metal-degreasing. It is also used to make other chemicals and is used in some consumer products.

Exposure to PCE can be from the air, chemical use, soil, or water. PCE can affect the kidneys, liver, nervous system, and reproductive system, as well as unborn children. There is also an increased risk of certain types of cancer.

More information about potential sources of PCE and associated health risks can be found on theAgency for Toxic Substances and Disease Registry (ATSDR) website.

Site Description

The Southgate Laundry facility is a laundry and dry cleaning service. The facility has been in operation since 1976. 

A site inspection in 1989 found that the business uses PCE as a solvent and the waste is stored in a dumpster that is disposed of at the local landfill.  

In 1991, the site was added to Ecology’s Hazardous Sites List with a ranking of “3”. 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.

What's Been Done?

Ecology investigated Southgate as part of a geotechnical investigation conducted in 1992. A soil boring was done on-site and PCE was detected. 
 
In 1994, Ecology performed additional sampling of Volatile Organic Compounds (VOCs) in the soil. Twenty-two VOCs were found. 

In July 1996, an environmental firm conducted a Remedial investigation (RI). The RI is an environmental investigation where soil and groundwater samples are taken to find out how far the contamination has gone. After the RI, contaminated soil from behind and beneath the building was removed. Although contaminated soil remains beneath the building, an environmental covenant has been filed to require further cleanup if the building is removed.

What's Happening Now?

Ongoing groundwater monitoring has shown concentrations below state cleanup levels since 2005.

Indoor air was tested in 2015, with results below state cleanup levels. 

Based upon cleanup activities conducted at the site, Ecology has determined the site is no longer a threat to human health and the environment. Ecology made a No Further Action determination in April 2018. The site has been was removed from the Hazardous Sites List.

Site use restrictions called institutional controls are in effect

Institutional controls can be fences, signs, or restrictions on how the property is used. For instance, an institutional control may prohibit installing drinking water wells or disturbing a protective cap that isolates contamination. These restrictions keep the contamination contained and keep people from being exposed to the contamination. The controls are usually listed in environmental covenants recorded with the county.

Periodic reviews are required when institutional controls are required at a site. Ecology conducts reviews to make sure the controls remain effective and the cleanup still protects human health and the environment. We conduct periodic reviews about every five years.

Environmental Covenant

County Recording #: 7967455
County Recording Date: 12/22/2017

Restrictions/Requirements

  • Prohibit Removal or Alteration of Existing Buildings
  • Prohibit Soil Disturbance
  • Restrict Land Use

Restricted Media

  • Soil
Legal 4
Document Title Document Date Document Type
Southgate Laundry AO Status Letter 4/23/2018 Order Notice of Satisfaction/Status
Southgate Laundry Environmental Covenant 12/22/2017 Environmental Covenant; Alternative Mechanism
Southgate Laundry RI/FS AO No. DE 95TC-C239 1/5/1996 Agreed Order
Southgate Laundry Final PLP ltr 12/9/1994 Final Potentially Liable Person Status Letter
Public Information 2
Document Title Document Date Document Type
Southgate Laundry - Fact Sheet for Proposed Removal from HSL 2/23/2018 Fact Sheet\Public Notices
Southgate Laundry RI/FS factsheet 1/5/1996 Fact Sheet\Public Notices
Technical Reports 23
Document Title Document Date Document Type
Southgate Laundry - YRRA GW Sampling Event 3/25/2024 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA GW Sampling Event 9/29/2023 Site Specific Administrative Document - other (Administrative correspondence)
Yakima Railroad Area PCE Groundwater Quality Monitoring Data Summary 2021 5/1/2023 Groundwater Monitoring Report
Southgate Laundry - YRRA GW Sampling Event 4/7/2023 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA GW Sampling Event 9/30/2022 Site Specific Administrative Document - other (Administrative correspondence)
Yakima Railroad Area PCE Groundwater Monitoring Data Summary 2018 - 2020 4/1/2022 Groundwater Monitoring Report
Southgate Laundry - Groundwater Sampling Event - YRRA 4/1/2022 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA Groundwater Sampling Event 9/29/2021 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA Groundwater Sampling Event 3/29/2021 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA Groundwater Sampling Event 11/6/2020 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - YRRA Groundwater Sampling Event 9/25/2019 Site Specific Administrative Document - other (Administrative correspondence)
Yakima Railroad Area PCE Groundwater Monitoring Data Summary 2017 7/1/2018 Groundwater Monitoring Report
YRRA Groundwater Quality Performance Monitoring 2016 4/1/2017 Groundwater Monitoring Report
Yakima Railroad Area PCE Groundwater Monitoring Data Summary 2014 - 2015 7/1/2016 Groundwater Monitoring Report
Southgate Laundry Vapor Intrusion Monitoring 11/11/2015 Site Specific Technical Document - other
YRRA Groundwater Quality Performance Monitoring 2013 10/1/2014 Groundwater Monitoring Report
Southgate Laundry YRRA RI Task 2 rpt 1/1/1998 Remedial Investigation Report
Southgate Laundry - Final PLP determination Kim not PLP 7/29/1997 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry 30-day notice of potential liability - Kim 2/26/1997 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry YRRA RI Task 1 rpt 7/1/1996 Remedial Investigation Report
Southgate Laundry SHA Results Notification 9/5/1991 Site Specific Administrative Document - other (Administrative correspondence)
Southgate Laundry - Site Hazard Assessment 8/27/1991 Site Hazard Assessment Report
Southgate Laundry Site Inspection rpt 11/29/1989 Site Specific Technical Document - other
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Central Regional Office
    1250 W Alder St
    Union Gap, 98903-0009
    Please schedule an appointment to view print documents at this location.

Contaminants 1

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Halogenated Organics - Halogenated Solvents RA B B
S
Suspected
C
Confirmed Above Cleanup Levels
B
Below Cleanup Levels
RA
Remediated-Above
RB
Remediated-Below
R
Remediated
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.