⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Ferry County › ZIP 99138

ZIP 99138, Ferry County: well depth, water level & drilling cost

✓ 124 Ecology records · Ferry County

181 ftmedian well depth
92 ft–305 fttypical depth range
60 ftmedian static water level
6 gpmmedian yield (41 tests)

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How deep are wells in ZIP 99138, Washington?

The median drilled well depth in ZIP 99138 is 181 ft, based on 124 wells with recorded depths in the state Ecology database. Half fall between 92 ft and 305 ft; 90% are shallower than 412 ft.

How much does it cost to drill a well in ZIP 99138?

Applying published per-foot rates to the local median depth of 181 ft: drilling and casing alone typically runs $4,525–$11,765; a complete system including pump, pressure tank, and hookup typically runs $10,860–$18,100. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 99138?

The median static water level is 60 ft below ground surface (middle half of wells: 36 ft–96 ft), from 40 measurements.

Drilled depth distribution

0–50 ft 6 50–100 ft 29 100–150 ft 20 150–200 ft 9 200–300 ft 22 300–400 ft 22 400–600 ft 15 600+ ft 1
Looking at a specific property in ZIP 99138?

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Part of Ferry 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.