Serving Corvallis
Groundwater & Basement Water Intrusion in Corvallis, OR
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
Two rivers meet at the edge of town.
They do, and the smaller one matters more than its size suggests. When the larger river is running high it holds the tributary mouth shut, so the smaller channel fills from its lower end upward and spreads across the flat ground behind. Properties along it can take water on a day when almost nothing fell on them directly.
How far does the valley floor flood?
Further than the channel width implies, because the floor is broad and almost level. An extra foot in the river translates into a great deal of additional ground covered, so the useful measurement for any address is its elevation rather than its distance from a bank. The larger events on this river are well documented and worth looking up by parcel.
Everything grows well here, including in the crawl space.
That follows from soil that stays wet from November to April with a dense layer beneath holding water near the surface. An underfloor space over ground in that condition is supplied with moisture continuously through the season rather than occasionally. The consequences build across winters instead of arriving in one event.
The same questions, in context, on the Corvallis mold removal page.