⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Grant County › ZIP 99115

ZIP 99115, Grant County: well depth, water level & drilling cost

✓ 92 Ecology records · Grant County

153 ftmedian well depth
110 ft–287 fttypical depth range
160 ftmedian static water level
28 gpmmedian yield (39 tests)

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How deep are wells in ZIP 99115, Washington?

The median drilled well depth in ZIP 99115 is 153 ft, based on 92 wells with recorded depths in the state Ecology database. Half fall between 110 ft and 287 ft; 90% are shallower than 509 ft.

How much does it cost to drill a well in ZIP 99115?

Applying published per-foot rates to the local median depth of 153 ft: drilling and casing alone typically runs $3,825–$9,945; a complete system including pump, pressure tank, and hookup typically runs $9,180–$15,300. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in ZIP 99115?

The median static water level is 160 ft below ground surface (middle half of wells: 50 ft–290 ft), from 35 measurements.

Drilled depth distribution

0–50 ft 0 50–100 ft 16 100–150 ft 29 150–200 ft 11 200–300 ft 15 300–400 ft 5 400–600 ft 12 600+ ft 4
Looking at a specific property in ZIP 99115?

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Get quotes from drillers who work in ZIP 99115

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Part of Grant 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.