This Massachusetts Water Resources Authority (MWRA) effort involved a feasibility study of a marine pipeline in Weymouth’s Fore River as an alternative to the proposed deep rock tunnel pipeline from North Weymouth to Nut Island in Quincy. FPA performed a Navigational Impact Assessment on the proposed alignments for the marine pipeline and advised the MWRA on specific mitigation techniques. FPA also inventoried environmental resources, recreational resources, and marine facilities within the study area and prepared various sections of the feasibility report. As part of the geotechnical investigation, FPA prepared and filed Notices of Intent with the Weymouth and Quincy Conservation Commissions and secured Orders of Conditions. FPA also coordinated the geotechnical work in the channel with the local Harbormaster and the US Coast Guard.