The Ohio River carries contamination from six states upstream. Spring flooding brings agricultural chemicals, industrial discharge, and sewage treatment overflow into Cincinnati neighborhoods along the riverfront. Properties in Riverside, East End, and Lower Price Hill face Category 3 water whenever the river crests above flood stage. This black water contains E. coli, heavy metals, petroleum products, and agricultural pesticides. Understanding these contamination sources determines proper cleanup protocols and protects your family from exposure to pathogens that cause serious illness.
Cincinnati's combined sewer system serves over 300,000 residents in older neighborhoods. During heavy rain, these systems discharge untreated sewage through basement floor drains and toilets. Properties built before 1960 in Mount Auburn, Clifton, and Over-the-Rhine face this risk regularly. Local restoration companies familiar with Cincinnati infrastructure recognize these contamination patterns immediately. We know which zip codes require sewage backup precautions and how to document Category 3 classifications for Hamilton County health inspectors. This local expertise protects you from inadequate cleanup that creates long-term health risks.