Columbia sits at the confluence of the Broad, Saluda, and Congaree Rivers. The October 2015 flood dumped over 24 inches of rain on the Midlands in under a week, pushing the Congaree past its 500-year flood stage and causing an estimated $1.5 billion in statewide damage. Columbia averages 50 inches of precipitation annually, with summer thunderstorms delivering 2 to 3 inches per hour.
Ambient outdoor humidity routinely reaches 80% or higher in summer, causing Category 1 water to degrade to Category 2 within 24 hours as microbial activity accelerates. Slab-on-grade construction throughout the metro offers no barrier to moisture migrating through cracks.
South Carolina has no mandatory restoration license; the governing standard is IICRC S500. Request daily drying logs and a final moisture verification report — both are required by insurance adjusters. Standard policies exclude rising water; carry separate NFIP coverage. Call 24/7 now.