Ecological Risk Assessment

Langan has been responsible for the design, implementation and coordination of a complex ecological risk assessment (ERA) of a large drainage system at this facility. These investigations have included sediment, surface water, porewater, and fish tissue sampling and analysis; benthic and fish surveys; sediment toxicity testing; and food chain modeling to assess risk to the aquatic system and wading piscivorous birds. The ERA has led to an extensive background investigation and an off-site ecological remedial investigation and ERA of a tributary to the Rockaway River and its surrounding wetlands. Langan determined the presence of co-mingled impacts from an adjacent Superfund Site. Investigation efforts are on-going.