Site Investigation and Source Identification
The Problem
Faced with a regulatory order to clean up a contaminated sediment site upstream of another cleanup site in a major river, our client commissioned TIG Environmental to evaluate the existing data, consider historical and ongoing sources, model the potential for recontamination, make recommendations for study, and prepare preliminary concepts for cleanup.
The Solution
TIG Environmental reviewed existing data that had been collected by other parties and identified constituents of concern. We also evaluated the upland area draining to the river and identified several potential sources of contamination to the river. Additionally, we employed hydrodynamic/particle transport modeling to evaluate the potential for sediments to recontaminate other areas of the river. We provided recommendations for additional studies to fill data gaps and prepare for full evaluation of the site.
Value Added
When faced with large uncertainties surrounding a complex and potentially high-cost environmental liability, TIG Environmental was able to rapidly deploy resources and reduce the scientific and engineering uncertainties, as well as identify other potentially responsible parties (PRPs) for possible cost recovery actions in the future.
