Prior to construction start-up, Farallon compiled a comprehensive list of disposal options for the petroleum-contaminated soil, which included a summary of costs and associated liabilities for each treatment, storage, and disposal (TSD) facility. Farallon then assisted the client in selecting an appropriate TSD facility. During construction activities, Farallon developed and implemented a Work Plan to characterize and segregate clean soil from petroleum-contaminated soil prior to excavation, which kept the overall construction project on schedule. Farallon also developed a stockpile resampling program at the TSD facility that reclassified petroleum-contaminated soil according to contaminant level, resulting in significant cost savings.
Implementation of Farallon’s Cleanup Action Plan significantly reduced total remediation costs and allowed the construction project to remain on schedule. The site was successfully remediated and received a No Further Action determination from Ecology. In addition, Farallon provided technical oversight in litigation support for cost-recovery efforts. Farallon's development of a conceptual site model demonstrating that off-site sources were the main contributor of contamination affecting the client’s site led to a successful mediation settlement for the client.