Serving Pomona
Groundwater & Basement Water Intrusion in Pomona, CA
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
Who owns the channel at the end of the street?
Frequently the county rather than the city, because the main storm drainage here is a regional system that crosses municipal lines. That distinction decides who can actually act on a blocked inlet or a damaged channel. It is worth establishing which agency covers a particular address before there is a reason to call, since the answer is not obvious from the map.
Everyone on the street had the same failure within a few years.
That is what a tract built in two or three years produces. The pipe, the roof detail and the water heater placement are the same house to house, so they reach the end of their lives together rather than one at a time. Treat a neighbor's failure as a schedule rather than a coincidence, particularly for anything original to the house that has never been replaced.
Eight months without rain and then the first real storm.
That interval is the whole of the risk on a roof here. A failed seal, a lifted flashing or a gutter that filled with debris in June goes unnoticed until November, and then every one of them is found at once by the same storm. Half an hour spent on the roof in October, before anything is asked of it, prevents more water damage in this climate than most drainage work would.
Read it with the local conditions on the Pomona page.