The PCB status in Monroe County continues to be monitored. The following information comes from the Update on Activities for Lemon Lane, Neal's Landfill, and Bennett's Dump
from the Environmental Protection Agency (EPA).
The United States Environmental Protection Agency (EPA) continues overseeing work at three Superfund sites in Bloomington, IN, known as Lemon Lane Landfill, Neal's Landfill and Bennett's Dump. These sites are part of a group of sites contaminated by PCB waste from the former Westinghouse Electric Corp. plant. Westinghouse is now CBS Corp., and is responsible for the cleanup of the sites.
Lemon Lane Landfill: EPA recently completed a five-year review of the cleanup at the Lemon Lane Landfill Superfund site. The review was required because contamination remains at the site at levels that require use of and exposure to the site to be restricted. The purpose of the review is to determine if the site cleanup will continue to be protective of people and the environment. This is the third five-year review for the site. The results of this review determined that the site is protective now that all of the cleanup components have been completed. The last component, instituting deed restrictions limiting use of the site, was completed in August 2014. Cleanup of this site included:
- Removing PCB-contaminated material and putting a cover over the landfill.
- Building a water treatment plant to treat contaminated spring water from Illinois Central Spring (ICS).
- Removing contaminated sediment and soil from around the landfill and the ICS treatment plant.
- Disposing the contaminated sediment and soil in an approved landfill off-site.
- Installing fencing around the site and ICS treatment plant.
- Long-term monitoring of water including weekly discharge sampling from ICS water treatment plant.
CBS Corp. continues operation and maintenance activities of the landfill and treatment plant. The treated water from the plant, which meets Indiana water discharge standards, is released to Clear Creek downstream of the site. Groundwater and surface water continue to be monitored.
Bennett’s Dump: CBS Corp. is currently in the process of designing a groundwater collection and treatment system for the Bennett's Dump site. EPA anticipates that the system design will be submitted in summer 2016 for EPA review. The design may include the installation of a groundwater trench near the on-site surface water springs to collect groundwater for treatment before it emerges from the on-site springs. The proposed system design will likely involve treating the groundwater with carbon filters to remove PCBs to meet Indiana water discharge standards. The treated water will then be released to Stout's Creek next to the site. EPA expects CBS Corp. to complete construction of the system by fall 2016 and begin operation at that time.
Neal's Landfill: At the Neal's Landfill site, CBS Corp. continues to perform routine operation and maintenance activities at the landfill and on-site treatment plant that was built to collect and treat spring water from the landfill. Water from the treatment plant also continues to be sampled. The treated water from the plant, which meets Indiana water discharge standards, is released to Conard's Branch immediately downstream of the site, which then drains to Richland Creek. Groundwater and surface water continue to be monitored.
Fish Sampling: EPA collected fish samples in fall 2014 and 2015 at various locations in Clear Creek near Lemon Lane Landfill, Stout's Creek near Bennett's Dump, and Conard's Branch and Richland Creek near Neal's Landfill. EPA performed a statistical analysis of historical fish sample results obtained over several years, including the 2014 sampling results. The analysis shows an overall decreasing trend in the concentrations of PCBs in fish, with the greatest decrease in fish closest to the sites. PCB reductions of 90 percent are evident in sport fish in Clear Creek, Stout's Creek and Richland Creek downstream of the sites.
What's Next?: EPA is evaluating its most recent October 2015 fish sample results and will perform an additional statistical analysis including these results. Fish sampling will also continue to be collected for the next few years. EPA will continue to monitor all the sites' maintenance activities including operation of the water treatment plants.
Web-based information resources for Project:
Please contact one of our Environmental Sanitarians at (812) 349-2882 for more information.
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