Region 8

Five Points PCE Plume

Five Points PCE Plume site location map Site Type: Final NPL
City: Woods Cross
County: Davis
Street Address: approximately West 1500 South and State Highway 106
ZIP Code: 84010
EPA ID: UTN000802654
Site Aliases: Bountiful 5 Points PCE Plume
Congressional District: 1

What's New?

Updated April 2015

  • A proposed plan and comment period and the Record of Decision are anticipated for completion by the end of 2015.
  • The final Feasibility Study Report was completed in March 2015.
  • The final Remedial Investigation Report was completed in January 2014.

Both reports are available in Site Documents below and at the Site Information Repositories.

Site Description

The Five Points PCE Plume Superfund site is located in the Salt Lake Valley in the cities of Woods Cross City, Bountiful and North Salt Lake City in Davis County, Utah. Although the plume begins in Bountiful, it travels west-southwest into Woods Cross City, affecting their municipal well system. Most of the mile-long plume underlies Woods Cross City and North Salt Lake City. Currently no source has been identified but it is believed to be from a dry cleaning facility in the area.

Map of the Five Points PCE Plume Superfund site boundary

The site consists of a groundwater plume of tetrachloroethylene (PCE)—sometimes called perchloroethylene (PERC)—that is used as a dry cleaning agent or metal degreaser. Woods Cross City has five municipal water wells that provide drinking water to the community of 9,761 people. Two of the five wells have in the past exceeded the federally regulated Maximum Contaminant Level (MCL) for PCE. These levels exceed the safe drinking water standard of 5 parts per billion (ppb). These two wells are no longer used. The other affected wells in Woods Cross City have levels below the MCL. North Salt Lake City also has wells that have been impacted.

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Site Risk

PCE is found in the groundwater, but the drinking water in this area is municipal water which meets the Safe Drinking Water standard. Woods Cross City and North Salt Lake City monitor this water regularly.

Three of the five wells Woods Cross City uses to supply drinking water to its citizens have shown detections of PCE. One of these wells has been shut down and is no longer used to provide water. As user demands increase, Woods Cross City will need to find a replacement source to meet the increased demand. The other affected well contains PCE levels below the safe drinking water standard. It is possible that concentrations of PCE will increase over time if the groundwater contamination is not addressed.

Media Affected Contaminants Source of Contamination
groundwater tetrachloroethylene (PCE), also known as perchloroethylene (PERC) potentially a dry cleaning facility

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Cleanup Progress

Early in 2008, the Utah Department of Environmental Quality (UDEQ) assumed the lead on this site. Work began on the Remedial Investigation (RI) in 2008. During the RI, the extent, or boundaries, of the plume were determined and what source(s) might be contributing to the contamination in the groundwater.

On September 19, 2007 Five Points PCE Plume was placed on the final National Priorities List (NPL).

EPA's Removal program worked with a nearby dry cleaner during the summer of 2007 to remove an old underground storage tank and soil that contained PCE. This action only partially addressed the source of contamination and did not address contaminated groundwater.

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Community Involvement

Community involvement plays an important role in the Superfund process. EPA uses a number of different tools and resources to promote effective, on-going, meaningful community involvement. The goals of the Superfund community involvement program are to:

  • Keep communities affected by sites informed throughout the cleanup process.
  • Provide opportunities for communities to comment and offer their input about site cleanup plans.
  • Facilitate the resolution of community issues tied to a site.

A Community Involvement Plan for this site has been prepared and outlines any outreach activities that EPA plans to implement to keep the community informed and address community concerns.

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EPA places a high priority on land reuse as part of its Superfund response program mission. The agency tries to select cleanup options that encourage and support future use of a site. EPA uses two fundamental methods to facilitate reuse of Superfund sites:

  • Exploring future uses before the cleanup remedy is implemented, an approach that gives the Agency the best chance of designing cleanup remedies to support the likely future use of a site.
  • Working with landowners and communities to remove barriers not considered necessary for the protection of human health or the environment at those sites where remedies are already in place.

One option for reuse is the siting of clean and renewable energy projects on contaminated (or formerly contaminated) lands. As part of this effort, EPA is evaluating the potential for energy projects on these properties and working with landowners and communities to identify ways to remove barriers to such projects.

The dry cleaners will remain and will be operational. The groundwater plume is below residential homes, commercial and industrial businesses. The anticipated future land use for the entire site is continued use.

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Land Use Controls and Other Institutional Controls

Land use controls are the most common type of institutional control (IC). ICs are administrative or legal controls that help reduce the likelihood for human exposure to contamination. ICs can also help protect the integrity of the remedy. Examples of ICs are:

  • Zoning ordinances.
  • Environmental covenants.
  • Deed notices.
  • Well-drilling restrictions.
  • Building permits.
  • Informational advisories.

Options for institutional controls are developed as needed during the RI/FS process and selected in the Record of Decision as a component of the remedy.

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Five-Year Reviews

EPA or the lead agency conducts five-year reviews following the start of a Superfund cleanup when contamination is left on the site. These reviews are repeated every five years. We use these reviews to determine:

  • How the remedy is working.
  • If the remedy remains protective of human health and the environment.

Five-year reviews are not yet required at this site.

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Site Documents

Final Feasibility Study Report, March 2015

Final Remedial Investigation Report, January 2014

Community Involvement Plan, November 2008

Site Narrative Summary for NPL Listing, March 2007

Proposed NPL Listing Timeline, March 2007

Instructions for commenting on the HRS package, March 7–May 7, 2007

Hazard Ranking System (HRS) Documentation Package, March 2007

Five Points PCE Plume Fact Sheet, February 2007

Policy Toward Owners of Property Containing Contaminated Aquifers, May 1995

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Sam Garcia
Remedial Project Manager
U.S. Environmental Protection Agency, Region 8
1595 Wynkoop Street (EPR-SR)
Denver, CO 80202-1129
800-227-8917 ext. 312-6247 (toll free Region 8 only)

Site Information Repositories:

Davis County Library, South Branch
725 South Main Street
Bountiful, UT 84010

Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84114-4840

EPA Superfund Records Center
1595 Wynkoop Street
Denver, CO 80202-1129
To request copies of administrative record documents call:
800-227-8917 ext. 312-7273 (toll free Region 8 only)


Tony Howes
State Project Manager
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84116

Dave Allison
State Community Involvement Coordinator
Utah Department of Environmental Quality
Division of Environmental Response and Remediation
195 North 1950 West
Salt Lake City, UT 84116

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Photo/Video Gallery

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The following links exit the site Exit

Utah Department of Environmental Quality

Davis County, Utah

Woods Cross City, Utah

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