Serving Yonkers
Groundwater & Basement Water Intrusion in Yonkers, NY
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
By the time water reaches an inlet it has gone past it.
On gradients like these runoff has built up speed long before it meets a grate, and most of it simply overshoots. That is a limit of the arrangement rather than a blockage, though a choked grate turns a limit into a flood. At the foot of a steep block the useful work is at the property line: lifting flow out of the entrance and giving it somewhere to be put.
The building lost its heat and lifts from water downstairs.
In an apartment building the plant is almost always below ground, so a flooded lower level takes out the lifts, the heating, the hot water and the pumps together, and the loss is measured in weeks of service rather than in wet carpet. Protection at the ramp, the areaway and the vents matters far more than anything on the upper floors.
There is a creek under the middle of the city.
There is, and the limitation is that nobody can see inside it. A buried channel has exactly the capacity it was given, less whatever has collected since, and neither number is knowable from the surface. Whatever records the city holds are worth asking for. Beyond that, the practical question is where water goes on the day the culvert is full.
Read it with the local conditions on the Yonkers page.