CATERPILLAR / JOLIET MANUFACTURING CAMPUS
The Joliet Manufacturing Campus is a 234-acre property that has long hosted Caterpillar’s hydraulic system components manufacturing operations, and is currently being redeveloped to add other industrial users to portions of the property that are either underutilized or vacant. Extensive due diligence activities conducted by our Client have served to characterize the extent of contamination present on site as a result of historic site operations. These investigations identified light non-aqueous phase liquids (LNAPL) contamination beneath two of the former buildings as well as radium contaminated phosphate rock which had been placed on the banks of the Des Plaines River by a neighboring manufacturing operation.
The Carlson team utilized MODFLOW groundwater modelling to assess the potential for contaminant discharge to the river, off-site migration, and vertical migration to the site’s deep (>1,000 feet) production wells. Site remediation included the design and construction of an engineered barrier to cap the phosphate river bank fill to prevent potential human contact and to mitigate the risk associated with potential erosion of the steep slope and discharge of radium to the river. Carlson developed a LNAPL Remediation Objectives Report/Remedial Action Plan (ROR/RAP) supporting a conclusion of technical impracticability, i.e. that remediation of the remaining LNAPL in the overburden and bedrock could not be reasonably recovered and did not pose a significant risk. The IEPA concurred with the ROR/RAP conclusions and granted the site a No Further Remediation letter.
Environmental Services Provided:
- Phase II Environmental Site Investigations
- Free Product Remediation
- Groundwater Modeling
- SRP Services