Wastewater oxidizes in one of the tanks at the treatment facility ... and then to wash away poop and other detritus. "[We're washing] everything from solids to organic materials to salts out ...

Sequential Batch Reactor Tanks are used during the sewage treatment process; authorities reported the tank initially released about 400,000 gallons of partially treated sewage. Emergency response ...

Parts of it are now contaminated with practically undiluted sewage flowing in from inoperative treatment plants and damaged sewers. Pablo Vera, a conservationist who has worked at the park for two ...