Fecal Coliform Bacteria is found in feces of humans and other warm-blooded animals. The feces can end up in the river from farm animal waste, leaky sanitary connections, and domestic animals like cats and dogs whose waste is washed into the storm sewers. The results of coliform bacteria tests are generally used to monitor recreational areas, storm water out-falls, and drinking water supplies. These tests are preformed by the city health department which then shares its data with us. A bacteria count of 235 colonies per 100 ml or more is the standard used to close the public beaches.