WASHINGTON (AP) — A Virginia boater is suing a Washington water utility for negligence in the collapse of a pipe that leaked millions of gallons of raw sewage into the Potomac River. The class action lawsuit filed Friday in U.S. District Court in Greenbelt, Maryland comes weeks after a January sewage pipe collapse, shooting wastewater out of the ground and into the river in an area just north of Washington, D.C. The spill is seen as a serious environmental blight and became the focus of