Connecticut water well logs, made useful.
Every Connecticut groundwater well the U.S. Geological Survey has inventoried and measured — how deep it went and what it draws from — gathered around one location.
✓ Verified against DCP + USGS · 2026-10-12
Looking for a recently drilled well? Wells drilled since 2021 are filed electronically with the state and appear here, often within days. Wells from roughly 2012–2020 sit in a records gap — too recent for the USGS inventory, before electronic filing — and those completion reports are held on paper by the Department of Consumer Protection, organized by town; the drilling company also keeps its own copy of the log.
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What you can answer here
- How deep will my well need to be? Median and range of actual drilled depths near you — not national averages.
- What will it cost? Local median depth × published per-foot rates, with the math shown.
- Will it produce enough water? Yields from pump tests on nearby wells.
- Who drills around here? The drillers who actually filed recent well logs in your county.
Every figure here comes from well completion reports filed with the Connecticut Department of Consumer Protection (2021–present) together with the USGS National Water Information System groundwater inventory. We index that inventory by location so you can start from an address, and every well links back to its own USGS site record.
See every recorded well near any Connecticut address: the measured depth of every inventoried well around the property, how those depths vary by distance, the aquifer each one draws from, and a direct link to that well's own USGS record — all in one report.
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