Serving Janesville
Groundwater & Basement Water Intrusion in Janesville, WI
Basement seepage, failed sumps, and hydrostatic pressure against the foundation are extracted and dried, and the path from the ground is identified so the loss does not repeat. Groundwater and basement seepage are extracted and dried only after the path from the soil is identified — a wall, a slab, a drain, or a failed sump. Drying the interior without stopping that path returns the same water to the same floor.
Frequently asked questions
Everyone here dates things from one flood. Is that a fair measure?
It is a fair measure of one event and a poor measure of the range. A single benchmark tells you what happened once and gives no sense of how much worse or milder the distribution runs, so people either assume nothing will exceed it or that nothing else counts. The published levels and their frequencies give the shape that memory does not. Both are worth holding in mind together.
The house is blocks from the river and the basement filled.
Sand and gravel conduct the river's level sideways very efficiently, so a rise in the channel becomes a rise in the ground for a considerable distance either side of it. Nothing overtops anything and nothing runs across the surface; the floor simply becomes the lowest point in a body of water that now includes the neighborhood. That is why interior drainage and a pump help here and exterior grading does not.
What is the useful thing to watch?
The state of the catchment rather than the forecast for the day. This river responds to how wet the ground already is across a large area, so a modest rain onto saturated country produces more than a heavy one onto dry. Late winter and early spring are when that condition is at its worst. Following the river forecast through those weeks, rather than the local rain, gives the better warning.
These questions come from the Janesville page.