Serving Exeter
Groundwater & Basement Water Intrusion in Exeter, 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 yard is wet in July and it has not rained since March.
That is almost always irrigation rather than a leak. Flood-irrigated ground nearby raises the shallow table for days at a time, and the effect reaches further than most people expect, particularly toward a crawl space or a low slab. The tell is timing: if the wet appears on a schedule and dries between, it is following the district's rotation and not a pipe.
Water stands where it never used to and nothing has been built.
The valley floor has been sinking, and it does not sink evenly. A grade that fell an inch in ten feet when the house went up may fall the other way now, and nobody notices until a wet winter shows it. This is a slow regional process rather than something wrong with a property. Rechecking the fall around the building with a level, rather than by eye, is what settles it.
Twelve inches a year. Is drainage worth spending on at all?
For most properties here the answer is a modest yes, aimed at the few days that matter. The value is not in handling a season, it is in getting three inches away from a wall in January when the ground will not take it. A short run of pipe carrying two downspouts clear of the foundation covers most of it. Anything larger is usually money spent on a problem this rainfall will not produce.
These questions come from the Exeter page.