Serving Redlands
Groundwater & Basement Water Intrusion in Redlands, 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
The wash is dry sand. Is it a river?
It is, and the mapping treats it as one. A braided wash carries water when the mountains upstream shed it, which is a few times a decade, and the width of it is a record of how wide that flow gets. Anything built, stored or planted inside it is in a floodway rather than on open ground, and the absence of water is a condition rather than a permanent state.
It flooded here and it barely rained here.
That is the normal sequence. A system stalling against the mountains upstream delivers a great deal of water into channels that carry it out onto this ground, and it arrives under a clear sky. Watching the local forecast tells you very little. For anything near a wash, the weather over the mountains is the thing to follow.
The ground takes water beautifully. Is that not enough?
It is excellent for ordinary rain and it is not what the risk is about. Coarse material soaks up an afternoon storm and it also carries water sideways a long way, so a rise nearby becomes a rise underfoot. The hazard is what occasionally comes down the wash rather than what soaks in daily, and good absorption does nothing about the first.
The Redlands overview carries this FAQ with the city research.