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Record of Decision System (RODS)

ELECTROVOICE

Abstract

Site Name:  ELECTROVOICE
Address:  600 CECIL STREET 
City & State:  BUCHANAN  MI  49107
County:  BERRIEN
 
EPA ID:  MID005068143
EPA Region:  05
 
NPL Status:  Currently on the Final NPL
 
ROD Type:  Record of Decision
ROD ID:  EPA/ROD/R05-92/201
ROD Date:  06/23/1992
Operable Unit(s):  01
 
Media:  Soil Sludge, Ground Water
 
Contaminant:  VOCs, (Benzene, Toluene, PCE, TCE, Xylenes), Organics (PAHs), Metals (Chromium)
 
Abstract:  SITE HISTORY/DESCRIPTION: The Electrovoice (EV) site is an active manufacturing facility for audio equipment in Buchanan, Michigan. Land use in the area is predominantly residential. McCoy Creek, the nearest surface water body, is located approximately 2,000 feet north of the facility. All residents are connected to the city water supply and city wells are located 4,000 feet west of the property. Electrovoice has been in operation at its present location since 1946. Current activities at the facility include painting, electroplating, assembly, die casting, and machining. The site contains a dry well area, where disposal of paint wastes occurred between 1964 to 1973; a fuel tank area, which stored no. 6 fuel oil from 1946 to 1960; and a lagoon area, where disposal of electroplating wastewaters occurred from 1952 to 1962. In 1979, the state was notified of a release of plating waste into one of the lagoons, which prompted an inspection of the site. That same year, Electrovoice hired a contractor to remediate the two lagoons and install ground water monitoring wells onsite. In 1980, the north lagoon and its contents were removed, and the south lagoon was backfilled. However, no contaminated materials were removed from the south lagoon. Ground water monitoring conducted in 1980 revealed significant concentrations of VOCs and metals. The dry well area soils are the principal onsite threat because they are the source of the ground water contamination. This ROD addresses remediation of onsite ground water and soil as a final remedial action. A future ROD will address all offsite ground water contamination, which extends from the EV property boundary about one-half mile north to McCoy Creek. The primary contaminants of concern affecting the soil, sludge, and onsite ground water at the site are VOCs, including benzene, PCE, TCE, toluene, and xylenes; other organics, including PAHs; metals, including arsenic, chromium, and lead; and inorganics. PERFORMANCE STANDARDS OR GOALS: Chemical-specific soil clean-up goals are based on state standards and include arsenic 0.4 ug/kg; benzene 20 ug/kg; PCE 14 ug/kg; TCE 60 ug/kg; toluene 16,000 ug/kg; and xylenes 6,000 ug/kg. Chemical-specific ground water clean-up goals are also based on state standards and include benzene 1 ug/l; TCE 3 ug/l; toluene 800 ug/l; and xylenes 20 ug/l. INSTITUTIONAL CONTROLS: Deed restrictions on the EV property will prohibit installation of drinking water wells and construction in the lagoon area and dry well area if clean-up levels are not attained. Deed restrictions will also be included for offsite properties under which the EV plume travels.
 
Remedy:  SELECTED REMEDIAL ACTION: The selected remedial action for this site includes treating contaminated soil in the dry well area onsite using vapor extraction; excavating the 2,100 cubic yards of remaining sludge, with offsite solidification and landfilling; collecting and treating onsite contaminated ground water using either granular or powdered activated carbon, air stripping, chemical oxidation/reduction or photolysis/oxidation,with discharge of the treated water offsite to a POTW; and monitoring off- property ground water. If, following these actions, the dry well soil does not meet treatment standards, further remedial action consistent with RCRA closure will be evaluated, which include installing a hazardous waste cap over the lagoon area soil; conducting an investigation of the potential existence of a lower aquifer in the area of the former dry well area; monitoring on and offsite ground water; and implementing institutional controls including deed restrictions for the property and surrounding properties to prohibit future installation of drinking water wells. The estimated present worth cost for this remedial action is $4,100,000, which includes an annual O&M cost of $330,000 for 2-5 years.
 
Text:  View full-text ROD [ 57K ]
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