⟁ Connecticut Well Data field records · 2026 survey

Connecticut Well Data › Southeastern Connecticut Planning Region › Griswold (06351)

Griswold, CT (06351): well depth, water level & drilling cost

✓ 118 DCP + USGS records · Southeastern Connecticut Planning Region

280 ftmedian well depth
140 ft–400 fttypical depth range
20 ftmedian static water level
7 gpmmedian yield (98 tests)

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How deep are wells in Griswold (06351), Connecticut?

The median drilled well depth in Griswold (06351) is 280 ft, based on 118 wells with recorded depths in the state DCP + USGS database. Half fall between 140 ft and 400 ft; 90% are shallower than 530 ft.

How much does it cost to drill a well in Griswold (06351)?

Applying published per-foot rates to the local median depth of 280 ft: drilling and casing alone typically runs $7,000–$18,200; a complete system including pump, pressure tank, and hookup typically runs $16,800–$28,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Griswold (06351)?

The median static water level is 20 ft below ground surface (middle half of wells: 20 ft–30 ft), from 96 measurements.

Drilled depth distribution

0–50 ft 10 50–100 ft 8 100–150 ft 13 150–200 ft 8 200–300 ft 21 300–400 ft 15 400–600 ft 34 600+ ft 9
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Part of Southeastern Connecticut Planning Region well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.