Serving Fremont
Groundwater & Basement Water Intrusion in Fremont, 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
Why do properties a few miles apart behave so differently?
Because the city covers the whole slope from the hills to the bay. At the upper end the ground is coarse fan material that drains readily; at the lower end it is soft bay margin sitting close to the water. Those are two different problems with two different remedies, and neither piece of advice transfers. Knowing which part of that slope a property is on comes before anything else.
The creek is a concrete channel. Should that not settle it?
It settles the reach it covers and moves the question downstream. An engineered channel carries water away from where it is quickly, which is the point, and delivers it to the next place just as quickly. Its capacity is a design figure rather than an unlimited one, and what matters for a property beside it is what happens when that figure is exceeded, not whether the channel exists.
Fourteen inches a year. Why is drainage even a subject?
Because the total arrives in a small number of winter systems onto ground that has been baked for eight months, and because most of the damage here does not come from rain at all. On stock of this age the common sources are supply lines, water heaters and irrigation rather than weather. The rainfall figure describes the climate and says almost nothing about where the water in a house comes from.
This FAQ belongs to the Fremont page; it is repeated here.