Koch Membrane Systems launches website; Parkson employees raise $64,000 for charities; WWEMA names LaVelle chairwoman; Trojan Technologies acquires Salsnes Filter; Kee Safety joins Pacific Industrial Contractor Screening; Xylem breaks ground on manufacturing plant; Ruhrpumpen opens Virginia service center; Calgon’s UV system receives conditional acceptance; American Water completes sale of Arizona, New Mexico operations; Mazzei names executive team; Siemens acquires Cambridge Water Technology; Underground Pipe attends SJE-Rhombus training; Hach names Brown corporate accounts manager; Layfield acquires Canwest Protective Coatings; Arkema names Stabler business development engineer; Revere Control Systems opens two offices; ETS begins production at new plant