A River Village and Its Ambient Moisture
Mahomet was platted in 1832 specifically for the Sangamon River's water, and that river-adjacent siting has meant higher ambient ground moisture near the original townsite ever since. The Sangamon's proximity is a defining fact for this village in a way it isn't for the rest of the county.
Crawl Spaces and Basements Near the Sangamon
Homes closer to the river headwaters tend to have higher water tables beneath them, which raises the baseline moisture crawl spaces and basements have to manage even without a specific leak or flood event. Mold remediation near Mahomet's river frontage should treat that ambient moisture as a starting condition, not an anomaly.