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Thermo King De Puerto Rico, Inc.

Other (Former) Names of Site: None

EPA Identification Number: PRD090497959
Facility Location: B Street, Zeno Gandía Industrial Park, Hato Abajo, Arecibo, Puerto Rico
EPA Contact Name: Luis Negron, (787) 977-5855,  luis.negron@epa.gov
Last Updated: October 2014
Environmental Indicator Status: Human Exposures Under Control [PDF 6.04 MB, 41 pp] has been verified.
Groundwater Contamination Under Control [PDF 4.75 MB, 25 pp] has been verified.

Site Description
Thermo King de Puerto Rico, Inc. facility is located in the Zeno Gandia Industrial Area in Arecibo, Puerto Rico. Major features of the facility include six buildings used for manufacturing and storage, a wastewater treatment plant, a hazardous waste and non-hazardous waste storage area, a guardhouse, and two employee parking lots.

The facility manufactures transport refrigeration units and is engaged in the production of solenoids, wire harnesses, control boxes, and plastic in-lays.  Other activities conducted at the facility include metal shearing, metal punching, welding, painting, and electrical wire harness and metal finishing.

Site Responsibility
RCRA Corrective Action activities at this facility are being conducted under the direction of EPA’s Region 2, RCRA Program at the Caribbean Environmental Protection Division, Response and Remediation Branch.

Threats and Contaminants
The primary contaminants that have been detected in the soil and groundwater are 1,1-dichoroethene, tricholoroethene, benzene, and vinyl chloride.  Based on available information, there are no known imminent threats to human health or the environment from the Thermo King de Puerto Rico, Inc. Facility.

CLEANUP APPROACH
The site ground water contamination is still has been investigated.

Cleanup Status/Corrective Action
Periodic groundwater monitoring for volatile organic compounds (VOCs) has been conducted at the Thermo King facility from December 1999 through November 2013. Several VOCs in excess of the EPA Maximum Contaminant levels (MCLs) have been detected in the shallow and deep aquifers, as well as in three identical perched water zones. 1,1-Dichloroethene (1,1-DCE) is the primary contaminant of concern at the site based on its concentration in groundwater relative to other detected contaminants.
 
2008 Perzone Pilot Test
A perozone (ozone + hydrogen peroxide) injection pilot test was conducted in 2008 by WSP Environmental & Energy (WSP). WSP conducted the pilot test in accordance with a work plan dated July 24, 2006.  Perozone injection was not judged to be an effective remediation technology due to difficulty injecting the oxidants into a tight and highly heterogeneous aquifer matrix.

2010 Hydrogeologic Study and Soil Vapor Extraction Pilot Test
A hydrogeologic evaluation was completed in August 2010 by ERM. As part of this study, a soil vapor extraction (SVE) pilot test was conducted to obtain subsurface information and evaluate the applicability of this technology to the site conditions. Based on data from the pilot test area monitor wells were inconsistent indicating that there are numerous small perched water zone in the contaminant source area instead of just three larger perched water zones as previously thought.

2012 Deep Soil Vapor Extraction Pilot Test
A soils vapor extraction (SVE) well, SVE-1, was installed in the source area in August 2012. A SVE pilot test was subsequently performed using the newly installed SVE well to verify the applicability of SVE technology within the source area. The results of the August 2012 SVE pilot test confirm that there is recoverable contaminant mass within the unsaturated zone beneath the former 1,1,1-TCA tank area.

2013 Soil Vapor Extraction System Installation/operation Permit Application
In June 2013, ERM began the process of applying for a permit to install and subsequently operate the proposed SVE remediation system. As of December 2013 the first two phases of the application process has been approved. Thermo King will implement the SVE by the end of 2014.

Response Action Status
None

Cleanup Progress
Contaminated soil at the site has been removed.  There is ground water contamination at the site which is being investigated.

Permit Status
Thermo King de Puerto Rico, Inc. is not a RCRA permitted facility. Thermo King entered into the Facility Lead Corrective Action Program with a letter of commitment to the EPA on April 9, 2002.  A Focused RFI Work Plan was submitted on May 23, 2002, and approved by the EPA on September 26, 2002. 

Site Repository

Copies of supporting technical documents and correspondence cited in the site fact sheet are available for public review at the following locations:

U.S. Environmental Protection Agency, Region 2
RCRA Records Center
290 Broadway, 15th Floor, Room 1538
New York, New York 10007-1866
Telephone: (212) 637-3043

Caribbean Environmental Protection Division
Centro Europa Building, Suite 417
492 Ponce De Leon Avenue
Santurce, Puerto Rico, 00907-4127
Telephone: (787) 729-6951

The inspection of some of the documents cited in the site fact sheet may require a formal request under the United States Freedom of Information Act (FOIA).

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