Facility Site ID: 98691464
Cleanup Site ID: 11323

  • Brownfield

  • This site has received funding as part of our Brownfields Program.
    Brownfields Public Funding: $150,000.00

Site Description

The Wenatchee City Public Works site, also known as the 25 N Worthen Street site, is located along the Columbia River waterfront in downtown Wenatchee. The site is bordered by the Pybus Public Market, Riverfront Park, and a municipal wastewater treatment facility. The site covers an area of ~3.3 acres.

The City of Wenatchee operated a public works facility at the site from the 1950s until 2009. The City also operated a landfill adjacent to the site from the 1950s until the 1970s.

Environmental Contamination

The site was included on Ecology's Confirmed and Suspected Contaminated Sites List based on a number of reports prepared in 1995, 2000, and 2011. 

In 2009-2011, Ecology provided a Brownfields Integrated Planning Grant to the City of Wenatchee to investigate contamination at the Site and conduct a redevelopment assessment.

Possible sources of contamination included former underground storage tanks, fuel dispenser islands, equipment storage and repair areas, and other past land use predating the City public works yard.

Various contaminants including lead, arsenic, benzene, and carcinogenic polycyclic aromatic hydrocarbons (cPAHs) were confirmed to exceed Model Toxic Control Act (MTCA) soil cleanup levels at multiple locations at the site. These hazardous substances may pose a threat to human health and the environment.

Groundwater was not believed to be impacted by releases from the former City public works yard. Groundwater contamination from the Wenatchee City Worthen Street Landfill site has impacted the site.

Cleanup And Redevelopment

In March 2014, the City of Wenatchee contracted with an environmental consultant to prepare a focused site assessment which included possible cleanup actions for the site. The preferred cleanup action included capping soil contamination at the site with a new building footprint, parking lot, and landscaping. Following construction of the cap, an environmental covenant was recorded for the property to ensure the cap remains in place. Although not related to the public works facility cleanup site, plans for future development will also include constructing a vapor barrier under any new buildings to mitigate possible vapor intrusion related to the landfill contamination.

In March 2016, the City of Wenatchee was working on redevelopment of the the property.  One of the primary future land uses is for a new hotel. The location is ideal for this given the property’s size, close proximity to Waterfront Park, the Pybus Public Market, the Wenatchee Convention Center, and downtown Wenatchee.

Cleanup Complete

Based upon cleanup activities and the recording of the environmental covenant, Ecology has determined the site is no longer a threat to human health and the environment. Ecology issued a no further action determination in March 2016.

Voluntary Cleanup Program

This site was cleaned up under our Voluntary Cleanup Program, which provides technical help to owners of contaminated sites.

Voluntary Cleanup Program customers pay fees to cover our costs for technical help and reviewing cleanup reports. Sites in this program must meet the same cleanup standards as the sites Ecology manages under legal orders.

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 #: 2433786
County Recording Date: 3/14/2016

Restrictions/Requirements

  • Prohibit Soil Disturbance
  • Restrict Land Use

Restricted Media

  • Soil
Legal 1
Document Title Document Date Document Type
Wenatchee Public Works Covenant 3/14/2016 Environmental Covenant; Alternative Mechanism
Technical Reports 11
Document Title Document Date Document Type
Wenatchee Public Works Site Management Plan 3/14/2016 Operation and Maintenance Plan
Wenatchee Public Works Remedial Action Completion Rpt 3/4/2016 Remedial Action Report
Wenatchee City Public Works Focused Site Assessment Rpt 3/4/2014 Site Specific Technical Document - Other
Wenatchee City Public Works Data Gap Investigation Summary 2/7/2014 Site Specific Technical Document - Other
Wenatchee City Public Works Site Characterization 12/20/2011 Site Specific Technical Document - Other
Wenatchee City Redevelopment Assessment IPG Final Report 12/8/2011 Site Specific Technical Document - Other
Wenatchee City Public Works Phase I Environmental Site Assessment 8/31/2011 Site Specific Technical Document - Other
Wenatchee City Public Works Subsurface Evaluation 8/31/2011 Site Specific Technical Document - Other
Wenatchee City Public Works Brownfields Assessment 6/1/2000 Site Specific Technical Document - Other
Wenatchee City Public Works Site Assessment 6/3/1995 LUST Site Assessment Report
Wenatchee City Public Works Soil Investigation Rpt 12/2/1981 Site Specific Technical Document - Other
Voluntary Cleanup Program 2
Document Title Document Date Document Type
Wenatchee City Public Works-VCP No Further Action Letter 3/18/2016 VCP Opinion on Site Cleanup – NFA
Wenatchee City Public Works - VCP Opinion on Proposed Site Cleanup - No Further Action Likely 4/24/2014 Voluntary Cleanup Program Opinion – 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 4

Contaminant Type
Soil
Groundwater
Surface Water
Air
Sediment
Bedrock
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons RA
Metals - Arsenic RA
Metals - Lead RA
Non-Halogenated Organics - Petroleum-Diesel RA
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.