What are the risks associated with the discharge of raw sewage?
Raw sewage can carry a variety of human bacteria and viruses. Depending on the amount and concentration of the sewage and on how people are exposed to it, these bacteria and viruses can cause illness. Combined sewer overflows also contain a variety of chemicals, oils and other wastes picked up by stormwater as it flows across parking lots, roads, lawns and other surfaces. Most combined sewer overflows occur during rain and are therefore diluted by rain and river water, but the potential for health and environmental hazards is still present. People most likely to be affected are water skiers, swimmers and others involved in water sports. There are water quality standards in Kentucky that limit the amount of certain bacteria in water. When these standards are exceeded, the Division of Water, in conjunction with the Department for Health Services, issues advisories to alert citizens to potential health hazards.
