Record of Decision System (RODS)
BENNETT STONE QUARRY
|Site Name:||BENNETT STONE QUARRY|
|Address:||ST RTE 37 & ST RTE 46|
|City & State:||BLOOMINGTON IN 47401|
|NPL Status:||Currently on the Final NPL|
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.
Bennett's Dump, sometimes referred to as Bennett's Stone Quarry, is located approximately 2.5 miles northwest of Bloomington , Indiana. After quarrying operations were completed, portions of the site were used for waste disposal. The disposal areas consist of 3.5 acre main stite, an adjacent .5 acre satellite site, and a very small area north of the two main fill areas. Stout's Creek is adjacent to the dumping area and directly west of the main site. The site was discovered in early 1983 after a Monroe County Health Department inspection revealed the dumping of PCB-contaminated electrical parts and PCB contaminated capacitors at the site. The materials were transported, for the most part, to the site by Fell Iron and Metal - a local scrap metal hauler. In May 1983, EPA's Technical Assistance Team completed an inspection and discovered electrical components, including capacitors and capacitor paper, along with stained soil throughout the main dumping area. Nine soil samples were collected and ranged from 380,000 ppm to below 5ppm. Based upon the inspection and sampling data, EPA determined that an emergency action was warranted and the EPA would fund this removal action. The removal action consisted of: removal and disposal in an approved facility of 252 capacitors located on the surface along with 14 cubic yards of adjacent contaminated soils. The extent of contamination studies including aerial photographic survey, a geophysical study, and 63 soil borings and samples. Results showed PCBs up to 24,648 ppm at .5 feet, up to 52,332 ppm at 2.5 feet, and up to 15,947ppm at 5.5 feet. The removal also included placement of a clay cap over the main site to prevent surface runoff of contaminants, and construction of a security fence around the site and the satellite areas.
Excavation, off-site disposal in landfill of PCB contaminated material. Cleanup to industrial/low occupancy standards. Off-site incineration of capacitors.
The original remedy action for Bennett's Dump called for the excavation and incineration of an estimated 55,000 cubic yards of PCB contaminated soils and materials at Bennett's Dump. The EPA, in consultation with other government parties, determined that the alternatives to be considered for the two sites should range from complete containment to complete excavation. The modified remedy includes excavation of 55,000 cubic yards of PCB-contaminated soils and materials and off-site disposal in a permitted commercial chemical waste/Toxic Substances Control Act (TSCA) landfill. The cleanup of PCBs will be to industrial/low occupancy standards of 25 ppm PCBs on average. Solid material greater than or equal to 50 ppm PCBs will be disposed of in an approved chemical waste landfill. PCB material less than 50 ppm will be disposed of off-site in a special waste landfill. In addition, the remedy includes off-site incineration of large PCB oil filled capacitors. Small capacitors, defined as containing less than 3 pounds of PCBs, will be disposed of in a TSCA landfill. Long-term groundwater monitoring and deed restrictions will be implemented.
Estimated Capital Cost: Not Documented
Estimated Annual O&M Cost: Not Documented
Estimated Present Worth Cost: Not Documented
Estimated Total Cost: $17,960,000
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