⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Ferry County › ZIP 99166

ZIP 99166, Ferry County: well depth, water level & drilling cost

✓ 425 Ecology records · Ferry County

200 ftmedian well depth
100 ft–305 fttypical depth range
60 ftmedian static water level
9 gpmmedian yield (140 tests)

How deep are wells in ZIP 99166, Washington?

The median drilled well depth in ZIP 99166 is 200 ft, based on 425 wells with recorded depths in the state Ecology database. Half fall between 100 ft and 305 ft; 90% are shallower than 440 ft.

How much does it cost to drill a well in ZIP 99166?

Applying published per-foot rates to the local median depth of 220 ft: drilling and casing alone typically runs $5,500–$14,300; a complete system including pump, pressure tank, and hookup typically runs $13,200–$22,000. Actual quotes depend on site access, geology, and casing requirements.

Get quotes from drillers who work in ZIP 99166

Free for property owners. We route your request only to licensed drillers who actually file well logs in Ferry County — never sold elsewhere.

What is the static water level in ZIP 99166?

The median static water level is 60 ft below ground surface (middle half of wells: 23 ft–120 ft), from 138 measurements.

Pull every recorded well near a ZIP 99166 address — $19

Drilled depth distribution

0–50 ft 17 50–100 ft 82 100–150 ft 54 150–200 ft 45 200–300 ft 85 300–400 ft 78 400–600 ft 47 600+ ft 17
Looking at a specific property in ZIP 99166?

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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.