Jump to main content.

Walker Machine Products, Inc.



Additional Resources
Site Summary Profile

EPA ID: TNN000410124
Location: Collierville, Shelby County, TN
Lat/Long: 35.041590, -089.653466
Congressional District: 08
NPL Status: Proposed: 12/12/13; Final: 05/12/14
Affected Media: Ground water, Soil
Cleanup Status: Recently listed on the final NPL.  Remedial Investigation (RI) to begin by September 2014.
Human Exposure Under Control: Insufficient data
Groundwater Migration Under Control: Insufficient data
Sitewide Ready for Anticipated Use: NA
Site Reuse/Redevelopment: In reuse – commercial use on site
Site Manager: Randy Bryant (bryant.randy@epa.gov)

Current Status

The Walker Machine Products Site includes the location of a former producer of precision metal parts that operated between 1953 and 2002. EPA placed the site on the National Priorities List (NPL) in 2014 because of contaminated ground water resulting from prior facility operations. EPA and the Tennessee Department of Environment and Conservation (TDEC) have performed initial studies at the Site.  EPA will next conduct a more detailed study, the Remedial Investigation/Feasibility Study (RI/FS), to determine the extent of contamination and a range of alternatives to address the contamination.

Top of page

Site Location and Background

The Site is located in Collierville, Tennessee, approximately 22 miles southeast of Memphis, Tennessee.  The property is about five acres in size. Walker Machine is bounded by Washington Street to the north, a wooded lot to the east, railroad tracks to the south, and other commercial or industrial buildings to the west.

Walker Machine manufactured precision fabricated metal products (also referred to as automated machine screw products) from 1953 until about 2002.  Langley purchased the property from Walker Machine in 2005 and began operations in 2006.  Langley manufactures wire cloth and perforated metal products such as strainers and filters. 

Top of page

Threats and Contaminants

Initial site investigations found contamination in ground water and soil resulting from the prior operations of Walker Machine Products, Inc.   Contaminants of concern include volatile organic compounds (VOCs) and petroleum products.

There are no currently known private drinking water wells in the area of the Site.  However, the City of Collierville’s Wellfield #1, serving about 13,800 people, is located about ½ mile west of the Site. EPA activities at this Site will focus on evaluating the potential for contamination to migrate towards the wellfield in the future and protecting the nearby city wellfield, as necessary.

Top of page

Investigation and Cleanup Responsibility / Oversight

The former Walker Machine Products, Inc., is no longer in business.  EPA will lead site investigation and cleanup activities in cooperation with TDEC.

Top of page


Site Cleanup Progress

The RI/FS is expected to begin by September 2014.  The results from the RI/FS will provide the basis for selecting any necessary cleanup. I/FS will determine if cleanup actions are necessary and provide the basis for selecting the most appropriate cleanup actions after considering input from the public and TDEC.

Top of page

Enforcement Activities

EPA is using federal funds for the site’s investigation and any necessary cleanup because the prior owner/operator of the Site, Walker Machine Products, is no longer in business.

Top of page

Community Involvement

EPA will work with the community and its state partner to develop a long-term cleanup plan for the site, reflecting the Agency’s commitment to safe, healthy communities and environmental protection. Community engagement and public outreach are core components of EPA program activities.

EPA will conduct a range of community involvement activities to solicit community input and to make sure the public remains informed about site activities throughout the cleanup process. Outreach efforts include public notices, interviews and public meetings on cleanup activities and updates.

Top of page

Future Work

The RI/FS is the next step in the evaluation of Site conditions and the RI/FS is expected to begin by September 2014.

Top of page

Additional Information

EPA keeps additional site documents and information in a site information repository at the location below. EPA also posts site documents, when available, on EPA’s CERCLIS Site Profile page. For documents not available on the website, please contact the Region 4 Freedom of Information Office.

Site Repository

The location of the site repository will be determined during the RI/FS process.  This web page will be updated when the location of the repository is established.

Top of page

Local Navigation

Jump to main content.