Since it formed in 1980, Rhode Island Independent Contractors & Associates has been involved in promoting the use of advanced onsite wastewater systems. Representing contractors in the construction, excavation, utilities and similar industries, around 75 percent of RIICA’s 200 members are involved in decentralized wastewater, including Will Wright of Wright Excavating, who serves as second vice president.Wright explains that 75 percent of his installations are advanced systems because many of them are along the coastline. Statewide, about 30 percent of systems use innovative technology, according to George Loomis, research and extension soil scientist and director of the New England Onsite
