DURHAM, N.C., July 20, 2021 /PRNewswire/ -- OTCQB ("PWVI"), a social impact, cleantech company located in Durham, North Carolina, and Stantec, TSX and the NYSE, a global design firm and recognized leader in integrated organics management and resource recovery, have entered into an agreement whereby Stantec will provide services to evaluate and support 374Water's design of its AirSCWO Nix6 systems.