⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Asotin County › Clarkston (99403)

Clarkston, WA (99403): well depth, water level & drilling cost

✓ 340 Ecology records · Asotin County

280 ftmedian well depth
174 ft–416 fttypical depth range
230 ftmedian static water level
25 gpmmedian yield (58 tests)

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How deep are wells in Clarkston (99403), Washington?

The median drilled well depth in Clarkston (99403) is 280 ft, based on 340 wells with recorded depths in the state Ecology database. Half fall between 174 ft and 416 ft; 90% are shallower than 660 ft.

How much does it cost to drill a well in Clarkston (99403)?

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 Clarkston (99403)?

The median static water level is 230 ft below ground surface (middle half of wells: 141 ft–280 ft), from 52 measurements.

Drilled depth distribution

0–50 ft 4 50–100 ft 17 100–150 ft 39 150–200 ft 52 200–300 ft 67 300–400 ft 66 400–600 ft 55 600+ ft 40
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Part of Asotin County well records.

Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions 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.