Remediating On-Site in a Dense Urban Area
Location
Northeast
Industry
Manufacturing, Real Estate
Challenge
Remediate an impacted property to prepare it for redevelopment
A former factory site – slated for residential and retail redevelopment – was impacted by multiple contaminants, including arsenic and lead. The property is in a dense urban area, divided by a city street and bordered by city transit and right of ways. Construction activities remained on hold until site remediation could take place.
ENTACT combined its remedial technology, construction skills and urban construction expertise to develop and implement a solution that achieved regulatory and redevelopment goals.
ENTACT Solution
ENTACT responded with an innovative on-site treatment approach that eliminated the movement of hazardous material off-site, shortened the schedule and reduced project costs. Using our in-house treatability capabilities, we developed and implemented a successful solution that rendered hazardous material to non-hazardous levels before off-site disposal.
- Cleared and grubbed site
- Removed and transported rubble, concrete, asphalt and other materials to staging area for sampling, reuse or disposal/recycling
- Utilized benching or trench boxes for excavation support
- Dewatered and conducted water treatment
- Backfilled affected areas with crushed concrete and fill
The Results
- Treated (on-site) and disposed of (off-site) 44,000 tons of non-hazardous material
- Completed on-site stabilization and off-site disposal of arsenic, VOC and LNAPL-impacted soils up to 16 feet below ground surface
- Excavated and disposed of chromium-impacted hot spot areas
- Site was restored for construction and redevelopment
