⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Columbia County › ZIP 99328

ZIP 99328, Columbia County: well depth, water level & drilling cost

✓ 111 Ecology records · Columbia County

272 ftmedian well depth
140 ft–471 fttypical depth range
140 ftmedian static water level
15 gpmmedian yield (39 tests)

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How deep are wells in ZIP 99328, Washington?

The median drilled well depth in ZIP 99328 is 272 ft, based on 108 wells with recorded depths in the state Ecology database. Half fall between 140 ft and 471 ft; 90% are shallower than 613 ft.

How much does it cost to drill a well in ZIP 99328?

Applying published per-foot rates to the local median depth of 272 ft: drilling and casing alone typically runs $6,800–$17,680; a complete system including pump, pressure tank, and hookup typically runs $16,320–$27,200. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 99328?

The median static water level is 140 ft below ground surface (middle half of wells: 42 ft–299 ft), from 35 measurements.

Drilled depth distribution

0–50 ft 0 50–100 ft 5 100–150 ft 25 150–200 ft 10 200–300 ft 18 300–400 ft 11 400–600 ft 24 600+ ft 15
Looking at a specific property in ZIP 99328?

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Part of Columbia 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.