Canal Seepage and Summer Groundwater: Why Crawlspaces Get Wet in July
Where the valley's groundwater comes from, and why it peaks in summer.
SOUTHWEST BOISE, IDAHO
Water under a Southwest Boise home on acreage, or an irrigation line soaking the foundation? Over the floor or under it, one number.
Southwest Boise is the stretch of Ada County between Boise, Meridian and Kuna where lots get bigger and the irrigation water is still easy to see. Ditches run along fence lines, laterals feed pasture, and a lot of the houses sit on acreage with their own flood or sprinkler irrigation. What you see on a property like that is often water under the house in summer, on the side nearest the ditch or the irrigated field. What it usually means is soil soaked by irrigation pressing against the foundation, or a cracked line close to the house. What happens next is extraction and drying under the floor, and a note about where the water is coming from so the outside source can be dealt with separately.
Summer is the wet season under houses here, while the ditches run. Winter brings freeze splits, especially in manufactured homes, where supply lines run under the floor behind skirting. Spring snowmelt can pool on flat acreage before the ground thaws.
A call from Southwest Boise to (208) 908-0878 goes to a restoration company that already works this part of the Treasure Valley. Those companies take on restoration and mitigation, ceiling damage, wet walls, floors and carpet, crawlspace and basement water and burst pipes. What the work costs and when it starts get settled after someone has seen the house, between you and that company.
If you flood-irrigate, note which days the water runs; that pattern helps a company tell irrigation water from a leak.
Where the valley's groundwater comes from, and why it peaks in summer.
What your house is sitting on, and where water goes in each.