David Bausmith : Remediation and Redevelopment of New Jersey Wood Treating Site
11/01/2012

Cement-based S/S was effectively implemented for the remediation and redevelopment of a former wood-treating site in Port Newark, N.J.

Online PR News – 01-November-2012 – Port Newark, NJ – When commercial properties in prime locations are left vacant due to environmental impacts to the soil and groundwater caused by past industrial practices, there is significant incentive to return these Brownfield sites to usefulness. One such site is located in Port Newark, N.J., which is one of the largest shipping ports in the New York/New Jersey area. The site was previously operated as a wood treating facility from 1940 until operations ceased in 1991, and remained vacant until remediation commenced under the jurisdiction of the New Jersey Department of Environmental Protection (NJDEP).

Cement-based S/S was effectively implemented for the remediation and redevelopment of a former wood-treating site in Port Newark, N.J. Approximately 52,000 cy of soil impacted with wood treating chemicals were treated via in-situ and ex-situ S/S technologies with eight percent Type I Portland cement by wet weight of soil. The S/S treatment effectively immobilized the soil and the related contaminants on-site, precluding the need to remove and dispose of soils off-site. The volumetric increase of site soils resulting from the S/S activities also reduced construction costs by offsetting imported fill requirements. Further cost savings related to potential imported fill requirements were realized through the effective use of soil-cement as sub base material for the asphalt pavement. Treatment of the soils via cement-based S/S also resulted in dramatic improvements in the bearing strength of the site, which has rendered the property suitable for use as a marine cargo storage facility.

The post-remediation monitoring requirements include quarterly groundwater flow monitoring and sampling/analysis. This will continue for a minimum of eight quarters (started the first quarter of 2002). In its early stages, the post remediation groundwater monitoring indicates site-related contaminants are being contained. More significantly, test pits and visual inspections performed after implementing the stabilization remedy confirmed that the source material was immobilized. David Bausmith, PE, LSRP