Key Environmental, Inc.
Developed Site
 
Integrated Brownfield Remediation and Redevelopment
Investigation, Design, Permitting, CQA, Operations, Maintenance, and Monitoring
Preparing Cover System
Project Activities
  • Site Investigation, Including the Use of Laser-Induced Fluorescence Techniques for DNAPL Delineation
  • Remedy Selection and Regulatory Negotiations
  • Detailed Design
  • Permit Applications (Including New Jersey Transit Authority Requirements)
  • Bid Solicitation and Review
  • Construction Quality Assurance
  • As-Built Documentation and Reporting
  • Operations, Maintenance and Monitoring
Although remediation of this eight-acre site was directly administrated via an Administrative Consent Order between the New Jersey Department of Environmental Protection (NJDEP) and the former facility operator, the lease-holder was an independent party, with specific interests in near-term redevelopment of the site for industrial purposes. KEY developed a remedial approach that satisfied both interests. Site investigation activities identified the presence of DNAPL at depths of more than 20 feet, in addition to various COIs in soils and groundwater. The selected remedy for the site included solidification / stabilization (S/S) of potential source materials (i.e., creosote and arsenic-impacted soils) with Portland cement, construction of an asphaltic concrete surface cover over the entire property, passive DNAPL recovery in deeper soils and monitored natural attenuation of dissolved constituents in groundwater. Shallow soils were treated ex-situ in a pugmill whereas the underlying soils were treated in-situ utilizing a mixing head attached to an excavator. The remedy was successfully implemented and the site is currently in beneficial re-use as an intermodal storage area.
Highlights
A successful petition for S/S of potential source materials precluded the need for excavation and off-site disposal as a listed hazardous waste, and integration with redevelopment to enable beneficial re-use of the property.
A successful petition for monitored natural attenuation and passive DNAPL recovery precluded the need for active groundwater remediation.