⟁ New Hampshire Well Data field records · 2026 survey

New Hampshire Well Data › Belknap County › Alton (03809)

Alton, NH (03809): well depth, water level & drilling cost

✓ 309 NHDES records · Belknap County

270 ftmedian well depth
175 ft–400 fttypical depth range
15 ftmedian static water level
10 gpmmedian yield (302 tests)

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How deep are wells in and around Alton (03809), New Hampshire?

The median drilled well depth in and around Alton (03809) is 270 ft, based on 308 wells with recorded depths in the state NHDES database. Half fall between 175 ft and 400 ft; 90% are shallower than 505 ft.

How much does it cost to drill a well in and around Alton (03809)?

Applying published per-foot rates to the local median depth of 270 ft: drilling and casing alone typically runs $6,750–$17,550; a complete system including pump, pressure tank, and hookup typically runs $16,200–$27,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Alton (03809)?

The median static water level is 15 ft below ground surface (middle half of wells: 8 ft–26 ft), from 140 measurements.

Drilled depth distribution

0–50 ft 7 50–100 ft 7 100–150 ft 42 150–200 ft 43 200–300 ft 62 300–400 ft 46 400–600 ft 78 600+ ft 23
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Part of Belknap County well records.

Method: medians computed from NHDES records (NHDES Water Well Inventory, water-supply wells only (test/exploration and closed-loop geothermal wells excluded); 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.