Connecticut Well Data › South Central Connecticut Planning Region
South Central Connecticut Planning Region, Connecticut: well depth, water level & drilling cost
✓ 817 DCP + USGS records · verified 2026-10-12
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How deep are wells in South Central Connecticut Planning Region, Connecticut?
The median drilled well depth in South Central Connecticut Planning Region is 135 ft, based on 817 wells with recorded depths in the state DCP + USGS database. Half of all wells fall between 68 ft and 255 ft; 90% are shallower than 430 ft. Wells drilled since 2016 have a median depth of 350 ft.
How much does it cost to drill a well in South Central Connecticut Planning Region?
Applying published per-foot rates to the local median depth of 135 ft: drilling and casing alone typically runs $3,375–$8,775; a complete system including pump, pressure tank, and hookup typically runs $8,100–$13,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in South Central Connecticut Planning Region?
The median static water level is 25 ft below ground surface (middle half of wells: 18 ft–40 ft), from 172 measurements.
How much water do wells in South Central Connecticut Planning Region produce?
The median tested yield is 7 gpm (middle half: 3 gpm–20 gpm), from 185 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in South Central Connecticut Planning Region?
| Driller | Wells since 2016 |
|---|---|
| Sima Drilling Company | 81 |
| CONNECTICUT WELLS/GEOTHERMAL SERVICES, INC. | 31 |
| Wragg Well Drilling & Pump Service LLC. | 18 |
| Wragg Well Drilling & Pump Service LLC | 14 |
| Dufford | 12 |
| Boyd Artesian Well Co., Inc. | 8 |
| BOYD ARTESIAN WELL CO INC | 6 |
| Savinelli Well Drilling | 2 |
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Well records by ZIP code in South Central Connecticut Planning Region
Median depth, water level, and yield for each ZIP code with recorded wells.
- Guilford (06437) — 86 wells, median 308 ft
- Wallingford (06492) — 72 wells, median 131 ft
- North Haven (06473) — 62 wells, median 115 ft
- Madison (06443) — 60 wells, median 273 ft
Method: medians computed from DCP + USGS records (USGS NWIS groundwater inventory, water-supply wells only (monitoring wells, test holes and injection wells excluded), and only wells carrying a measured depth). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.