The NYSDEC maintains a registry of sites at which disposal of hazardous waste is known or suspected. Once registered, responsible parties (owners, operators or transporters) are obligated to conduct the following steps:

· Preliminary Site Assessment (PSA)

If evidence of hazardous waste disposal is found, additional steps are required:

· Remedial Investigation (RI)
· Feasibility Study (FS)
· Interim Remedial Measures (IRMs)
· Proposed Remedial Action Plans

Following are a few recent examples:

Hazardous Waste Sites
Beekman Highway Garage
Client: Town of Beekman Location: Beekman, NY

Conrad Geoscience designed a Remedial Investigation (RI) that combined geophysical and soil gas surveys with conventional soil and groundwater sampling to pinpoint the source of a chlorinated solvent plume on the Town’s 10-acre Highway Department property. Conrad Geoscience designed and completed the remedial program, which included source removal and monitoring of natural attenuation via a network of on-site monitoring wells and off-site residential wells.

Circle M Wood Treating Corp.
Client: Chelsea Industrial Park Location: Fishkill, NY

Conrad Geoscience conducted a Remedial Investigation (RI) to determine the extent of heavy metal contamination in soil and groundwater at a former lumber treatment operation, followed by an evaluation of remedial alternatives (FS). The proposed remedy is to integrate construction of a low-permeability cap with site redevelopment.

LIRR Electrical Substations
Client: Dvirka & Bartilucci Engineers Location: Long Island, NY

At 12 transformer stations operated by the Long Island Railroad, Conrad Geoscience located waste disposal dry wells using ground-penetrating radar and magnetometry, and traced associated piping using electromagnetic techniques.