Serving Rochester
Groundwater & Basement Water Intrusion in Rochester, MN
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
The channel through town was rebuilt after the big flood. Does that cover basements?
Two things it was never meant to address. Groundwater in the valley rises with the river during prolonged high stages and reaches basement floors from below, and local rainfall has nowhere to discharge while stages are high. Most of the water that reaches houses during a river event comes from those sources rather than over any structure. That is not a criticism of the works; it is what channel protection does and does not cover.
The pump runs and the pit does not empty.
In late winter that is nearly always a frozen discharge line. The pump pushes into a blocked pipe and the water comes back to the pit, which burns the pump out while the basement stays exposed. Prevention is about the line: enough slope to drain fully between cycles, an outlet kept clear of snow and ice, and a freeze-relief fitting so a blocked line has somewhere else to go.
Is there time to move things once the rain starts?
Quickly, because the watershed above is not large and the terrain sheds readily. Intense summer rain becomes river flow in hours rather than over a day, which leaves a short interval between the storm and the peak. That argues for acting on the rainfall forecast rather than on the gauge, particularly for anything stored at the lowest level of a property near the channel.
The same questions, in context, on the Rochester mold removal page.