The State of Ohio uses standards for E. coli to assess whether the water quality is acceptable for swimming or other recreational activities. E. coli is a bacterium that is not usually disease causing but is found in the gastrointestinal tract of healthy warm-blooded animals, including humans, and their feces. Its presence is an indicator that disease-causing organisms are also likely to be present. For Lake Erie beaches, if the level of E. coli goes over the single-sample bathing-water standard of 235 colony-forming units per 100 milliliters (CFU/100 mL), the beach manager will issue a water-quality advisory. For the stretch of the Cuyahoga river that includes the nowcast site at Jaite, the river has been designated as primary-contact recreation, and the single-sample primary-contact standard is 298 CFU/100 mL. A milliliter is a unit of volume in the metric system; 100 milliliters is equivalent to just under ½ cup.