Roof and surface runoff
Downspouts, driveways and low areas are included when water collects beside a foundation or at a basement window.
Williston, Vermont · Chittenden County
Williston properties can have extensive roof areas, driveways, patios and landscape grading that alter how stormwater reaches the foundation. Newer construction can still develop drainage, crack or sump concerns, so the inspection should rely on the observed water path rather than the home's age alone.
Request service in WillistonLocal conditions
Williston lies along the Winooski River with Allen Brook and Muddy Brook running through the town, and it includes substantial newer development alongside older properties. Larger roof areas, wide driveways and landscaped grading are common here, and all three change where stormwater ends up.
Neighborhoods and places in Williston include Williston Village, Taft Corners area and Winooski River corridor.
Local conditions on record
Williston's soil survey rates 84% of the natural soil very limited for a basement. A seasonal high water table reaches within 20 inches under 52% of it, one of the highest shares in Chittenden County.
Only 8.4% of Williston is 100-year flood zone. For most basements the bigger issue is groundwater and roof runoff.
Radon tests in Williston homes hit the EPA action level 11.4% of the time. Roof water adds to the load.
| Measure | Value |
|---|---|
| Precipitation per year (Burlington International Airport) | 37.53 in |
| Land in the 100-year flood zone | 8.4% in zone |
| Named settlements | North Williston, Kirby Corner and Tafts Corner |
| Named rivers | Winooski River |
| Numbered highways | I-89, US 2, VT 2A and VT 116 |
| Tested homes above radon action level | 11.4% above |
| Soils very limited for basements | 84% limited |
| Bedrock within 40 in | 17% shallow |
| Soil that often floods | 7% floods |
| Water table within 20 in | 52% wet |
Williston discharges stormwater under a state MS4 permit. The town's stormwater page says the water lands in seven bodies. Seven waters take the runoff.
The August 2025 town plan commits to the Allen Brook Flow Restoration Plan. It also sets a 2050 goal that flooding and fluvial erosion cause minimal damage to structures.
The 2025 plan wants stormwater treatment handled together in Taft Corners instead of parcel by parcel. It calls for inventories of ditches, culverts and closed stormwater systems, so the most urgent locations are fixed first. Those are public drains. In Taft Corners or on Route 2A, your foundation drain still has to end on your own lot.
Williston sorts permits into two paths. According to the town's permit page, some kinds of work need only an administrative permit that the Zoning Administrator can approve. Most commercial development, new residential subdivisions and most work proposed in Williston Village go to the Development Review Board first. Ask the Zoning Administrator which path an exterior drain or excavation takes. Do it before the work is priced.
Ask the crew to name the receiving path. An outlet aimed at a neighbor or a road ditch invites a complaint. Name the outlet.
Services in Williston
Planning a project in Williston
Downspouts, driveways and low areas are included when water collects beside a foundation or at a basement window.
Interior drains and crack repairs are planned around wall framing, flooring, utilities and the finishes that must be restored.
Cracks at additions, garages and foundation transitions are measured and separated from ordinary leaking cracks before repair.