See Initial POLREP.
On Monday August 4, 2008, ERRS mobilized to the site to perform stabilization and removal work in preparation for demolition activities planned by the city of Chicago. Since EPA was last on site in October 2007 trespassers have stolen much of the metal on site including beams, supports and debris within the buildings leaving some buildings unsafe for entry and work. During this reporting period, ERRS crews have worked to ensure all buildings are structurally sound and to mitigate any safety concerns.
On Monday August 11, START arrived on site to provide documentation, photo-documentation and continue site assessment work. Planned activities include:
• Subsurface soil assessments to delineate hydrocarbon, PCB and Metal contamination throughout the Site,
• PCB wipe sampling on concrete flooring within buildings where PCB contamination is known, and;
• Characterization of soils intended for off-Site disposal.
While on Site, a below ground vault with oil and water was noted south of building 912. Actions are being taken to investigate the contents and source of materials within this vault.
Planned removal activities include the following:
• Continued building stabilization,
• Sampling and pumping of materials within the vault south of Building 912,
• Surgical soil excavation in areas of concern as identified by the subsurface soil assessment, and;
• Cleaning and sealing of PCB impacted floors.
The following actions are anticipated to occur during the next reporting periods:
:
• Reassess buildings for structural integrity,
• Review subsurface analytical results to determine lateral and horizontal extent of metals, PCBs and petroleum hydrocarbons,
• Determine areas for soil excavation and removal, and;
• Waste profiling to ensure proper disposal.
• Documentation and photo-documentation of all EPA and city work,
• Address contaminants of concern throughout the site based on findings from the subsurface investigation,
• Tracking of excavation and disposal quantities, including soil and water.
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