USACE Seattle District, Multiple Award Task Order Contract for Proposed Dredged Materials

Period of Performance 2017 – 2018

EcoAnalysts is part of a team of consultants working on a multiple award task order contract (MATOC) for the USACE Seattle district concerning dredged material sediment characterization in Grays Harbor, Duwamish River, Quilllayute River, and Port Townsend, WA. For each project location, EcoAnalysts staff developed the sampling analysis plan, led and coordinated all field activities, collected sediments via grab or core sampling, coordinated chemical analyses, reviewed and interpreted data validation report for the analytical chemistry and conducted interpretive reporting of the results. In addition, EcoAnalysts performed biological testing of full Tier III requirements under the Green Book (USACE 1991) and PSEP guidelines. Testing included sediment toxicity on amphipod and polychaetes species; water column testing on fish, mysids, and larval development.