⟁ Maine Well Data field records · 2026 survey

Maine Well Data › Knox County › South Thomaston (04858)

South Thomaston, ME (04858): well depth, water level & drilling cost

✓ 156 Maine Geological Survey records · Knox County

174 ftmedian well depth
120 ft–240 fttypical depth range
10 ftmedian static water level
6 gpmmedian yield (154 tests)

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How deep are wells in and around South Thomaston (04858), Maine?

The median drilled well depth in and around South Thomaston (04858) is 174 ft, based on 154 wells with recorded depths in the state Maine Geological Survey database. Half fall between 120 ft and 240 ft; 90% are shallower than 307 ft.

How much does it cost to drill a well in and around South Thomaston (04858)?

Applying published per-foot rates to the local median depth of 174 ft: drilling and casing alone typically runs $4,350–$11,310; a complete system including pump, pressure tank, and hookup typically runs $10,440–$17,400. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around South Thomaston (04858)?

The median static water level is 10 ft below ground surface (middle half of wells: 5 ft–12 ft), from 24 measurements.

Drilled depth distribution

0–50 ft 0 50–100 ft 19 100–150 ft 40 150–200 ft 32 200–300 ft 42 300–400 ft 19 400–600 ft 2 600+ ft 0
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Part of Knox County well records.

Method: medians computed from Maine Geological Survey records (Maine Geological Survey well database, excluding test, observation and monitoring wells; depths 0-5,000 ft), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.