Jump to main content.

Local Navigation

Record of Decision System (RODS)



Address:  4690 HUMBOLDT 
City & State:  DETROIT  MI  48208
County:  WAYNE
EPA ID:  MID980274179
EPA Region:  05
NPL Status:  Deleted from the Final NPL
ROD Type:  Amendment
ROD ID:  EPA/AMD/R05-95/284
ROD Date:  02/28/1995
Operable Unit(s):  01
Media:  soil
Contaminant:  PCBs
Abstract:  Please note that the text in this document summarizes the Record of Decision for the purposes of facilitating searching and retrieving key text on the ROD. It is not the officially approved abstract drafted by the EPA Regional offices. Once EPA Headquarters receives the official abstract, this text will be replaced.

This decision document amends a decision made on September 18, 1991 in which the U.S. Environmental Protection Agency (EPA) chose low-temperature thermal desorption as the remedy for PCB contamination at the Carter Industrials, Inc. site in Detroit, Michigan. EPA is amending the 1991 Record of Decision to selec off-site disposal as the remedy.

The original selected remedy was for a unit to be built on site through which contaminated soil would have been treated and contamination removed. Treated soil that did not meet stipulated cleanup levels was to have been placed in a landfill constructed on the site property.

On July 1, 1994, a petition was submitted to EPA asking that EPA amend the 1991 ROD to change the remedy. New information was brought to EPA's attention that substantially supports the need to alter the remedy.
The first point of new information is that the cost of off-site disposal has dropped dramatically. At least one landfill became available and another may soon join it that are capable of accepting PCB contaminated material from the site at a much lower cost than EPA had estimated in the 1991 ROD.

The second point addressed in the petition is that there is less contaminated soil at the site than originally thought. The 1991 ROD contained an estimate of 45,250 cubic yards of contaminated soil that would have to be treated. However, a survey recently completed as part of the remedial design work shows that only 19,300 cubic yards need to be treated. A change of this magnitude substantially reduces the cost-effectiveness of an on-site remedy like the one EPA chose in th 1991 ROD.

The third point is that restrictions on interstate transport have been struck down. In 1991, EPA noted that there could be problems in getting permission to transport PCB wastes across state lines. EPA cited this concern as a factor which had favored the selection of an on-site over and off-site remedy. Since then, the Supreme Court has resolved this problem by holding that states may not prevent the interstate shipment of waste.
Remedy:  This response action addresses remediation of PCB-contaminated soil, debris, and buildings at the site. The principal threats posed by conditions at the site include inhalation of volatilized PCBs and fugitive dust, and dermal contact wit contaminated materials. The amended remedy will eliminate these threats.

The major components of the amended remedy include: excavation of soil on the site and from designated properties in the neighborhood near the site containing one part per million or more of PCBs; demolition of contaminated buildings on th site; disposal of contaminated soil and debris at an approved, permitted, off-si prior to disposal; air monitoring and dust suppression during remedial activities; removal of an underground storage tank and its contents from the sit in accordance with Michigan regulations; restoration of areas where demolition o excavation take place; and maintenance of all existing site and safety measures, including fence, security guards, operation and maintenance of surface water runoff collection and treatment system during remedial activities.
Text:  View full-text ROD [ 30K ]
To download a full-text ROD, right click on the above link and select Save Link As. A full-text ROD is in PDF format. Please note that download time may be extended given the size of the full-text document. File size is noted in kilobytes (K) or megabytes (M) next to the download link.
About Adobe Portable Document Format
Return to Search Results    Return to RODS List

OSWER Home | Superfund Home

Jump to main content.