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JJ Seifert Machine

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Site Summary Profile
EPA ID: FLN000410232 
Location: Ruskin, Hillsborough County, Florida
Lat/Long: 27.6786, -82.47779
Congressional District: 12
NPL Status: Proposed: 09/23/09; Final: 03/04/10 
Affected Media: Ground water
Cleanup Status: Study Underway
Human Exposure Under Control: EPA is working to determine
Ground water Migration Under Control: There is insufficient data to determine
Sitewide Ready for Anticipated Use: No
Site Reuse/Redevelopment: Not in use
Site Manager: James Hou (hou.james@epa.gov)


Current Site Status

The JJ Seifert Machine site includes the area where JJ Seifert Machine Company manufactured products such as electronic components from 1962 until 2011. EPA placed the site on the National Priorities List (NPL) in 2010 because of contaminated ground water resulting from facility operations. EPA and the Florida Department of Environmental Protection (FDEP) have investigated site conditions and taken steps to protect people and the environment from contamination. In 2009, FDEP had filters installed on private wells where contaminants exceeded drinking water standards. EPA is currently conducting an extensive investigation to identify all site-related risks to people and the environment.

Site Location and Background

The 1-acre site is located along Old Highway 41 South in Ruskin, Florida. Site surroundings include Vidor Avenue, a service shop and residential properties to the north, commercial businesses to the south, U.S. Highway 41, a church and agricultural land to the east, and Old US Highway 41 and residential properties to the west. Nearby residential areas include low-income and minority residents.

JJ Seifert Machine Company operated at the site from 1962 until 2011, making manufactured products such as electronic components, tools, dies, jigs and fixtures. A paint shed, a drum storage area and a plating operation were located at the site. The site is not currently in use. A vacant machine shop building and a metal building remain on site.

The State of Florida referred the site to EPA because the owner and operator of the facility were unwilling to address adequately the contamination at the site and because sampling detected contamination in nearby private drinking water wells. EPA received a letter of support for placing the site on the NPL from FDEP. In 2011, EPA listed the site on the NPL.

View site location map.

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Threats and Contaminants

Site investigations identified contamination in ground water that could potentially harm people in the area. Ground water contamination resulted from waste handling practices at the site. Contaminants of concern include the following volatile organic compounds (VOCs): cis-1,2-dichloroethene, tetrachloroethylene (also known as PCE or PERC), trichloroethylene and vinyl chloride.

Ground water contamination has spread from underneath the site to nearby properties. There are 28 private and community potable wells within a quarter-mile radius of the site. The upper-level aquifer is unconfined and there are no public water lines in the area. Based on sampling, EPA detected VOCs in 13 residential wells; six of these had levels of VOCs that exceeded federal and state drinking water standards. For the six wells that exceeded standards, FDEP had filters installed in 2009. If additional wells exceed federal or state standards in the future, FDEP will have filter systems installed. FDEP contracts with the Hillsborough County Public Health Department to install the wells and monitor the filter systems.

EPA has determined that vapor intrusion is not a threat at the site.

EPA has conducted soil sampling on the church property located directly across the street from the site, which includes a children’s playground. EPA did not identify any site-related contaminants in soil.

Currently, EPA is conducting a remedial investigation/feasibility study to fully assess all site-related threats to people living near the site and to the environment and evaluate cleanup options.

EPA is considering children’s health issues as part of the site’s risk assessment.

The site is fenced and secured.

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Investigation and Cleanup Responsibility / Oversight

EPA leads site investigation and cleanup activities in cooperation with FDEP.

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Site Cleanup Plan

After completing the remedial investigation/feasibility study, EPA will issue a proposed cleanup plan to address any contamination and related risk to people and the environment. After receiving input from FDEP and the community, EPA will issue the final cleanup plan (a Record of Decision, or ROD).

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Cleanup Progress

After issuing the final cleanup plan, EPA will begin preparations to carry out the approved cleanup activities.

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Enforcement Activities

EPA is negotiating with the site’s potentially responsible party (PRP) to pay for site investigation and cleanup costs.

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Community Involvement

EPA is working 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 is conducting 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, public meetings and interviews with residents.

As part of EPA’s outreach efforts, EPA staff members have gone door-to-door to talk with residents about the site. EPA used a Spanish translator to assist in discussions.

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Future Work

EPA is conducting the site’s remedial investigation/feasibility study. After completing the remedial investigation/feasibility study, EPA will issue a proposed cleanup plan.

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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

Hillsborough County Ruskin Branch Library
26 Dickman Drive SE
Ruskin FL  33570

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