A trio of environmental groups filed a lawsuit in Thurston County Superior Court Thursday looking to overturn a Washington Energy Facility Site Evaluation Council decision to issue a water pollution permit for Energy Northwest’s Columbia Generating Station at the Hanford Nuclear Reservation.  The Northwest Environmental Defense Center, Northwest Environmental Advocates, and Columbia Riverkeeper claim EFSEC issued the permit over strong objections from fisheries experts at the National Marine Fisheries Service.  The lawsuit also alleges that EFSEC’s permit allows water pollution at levels that violate state standards designed to protect public health, fish, and other aquatic species.  The Columbia Generating Station uses 20 million gallons of water from the Columbia River every day to cool the nuclear reactor.