AdEdge Water Technologies will design and manufacture a biottta treatment plant rated for a maximum flow of 1.5 mgd for the removal of nitrate, perchlorate and trichloroethylene in the West Valley Water District in Riverside County, California. The biottta process, a biologically tailored two-stage treatment approach, uses naturally occurring bacteria to eliminate multiple contaminants from groundwater, rather than creating harmful waste streams found in other treatment processes.