CODE remediated PCB- and RCRA-contaminated soil, sediment, and groundwater from a former copper products refinery in Maspeth, New York. The work was done under a voluntary cleanup in accordance with the NYSDEC in association with the pending sale of the property for re-development. The site is located along the Newtown Creek inland waterway, and has major bulkhead and docking facilities.

PHASE I - SOIL REMEDIATION: CODE excavated and shipped 20,000+ tons of contaminated soils and debris off-site for disposal. This material was classified as Petroleum Contaminated (non-hazardous), TSCA, and TSCA/ RCRA mixed wastes with PCB, lead, mercury, and selenium. Of the 20,000 tons of contaminated material handled by CODE, nearly 12,000 tons was classified as mixed waste. CODE also removed sediments from and stabilized the impacted creek bank. Some of the impacted material excavation areas were located close to the existing bulkhead, which CODE repaired. Deep excavation to more than 20 fbgs and excavation dewatering was required in some of the impacted material excavation areas. To access the impacted material excavation areas, CODE broke and removed 1,800 tons of subsurface concrete structures. The 76,000 sf of concrete slab to be left in place was decontaminated via high-pressure washing. Decontamination waters were contained and sent off-site for proper disposal. The site was closed with clean fill and contoured for proper drainage.

PHASE II - GROUNDWATER. This phase of the project involved construction of an engineered barrier wall system, a bio-polymer trench, and a 50 GPM treatment system as part of the groundwater remediation. Work included removal of concrete and soil from the barrier wall and media drain trenches; installation of a sheet pile barrier wall; installation of media drain piping, sumps, clean-outs, pea gravel and filter fabric using a Bio-Polymer Slurry Trenching Technique; installation of the concrete equipment enclosures, force mains, electrical conduits and ancillary equipment in the media drain trench; installation of H piles and concrete foundation for the pump house; construction of a pump house and the installation of associated pumping equipment; installation and connection of utilities and discharge line to the pump house; test run of pumping and computer systems; and site clean-up, paving, and demobilization of equipment and site support facilities.

Both project phases required union labor for the majority of the tasks. CODE furnished OSHA and HAZWOPER trained personnel for the work.