⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Whitman County › Rosalia (99170)

Rosalia, WA (99170): well depth, water level & drilling cost

✓ 84 Ecology records · Whitman County

162 ftmedian well depth
135 ft–240 fttypical depth range
26 ftmedian static water level
30 gpmmedian yield (23 tests)

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How deep are wells in Rosalia (99170), Washington?

The median drilled well depth in Rosalia (99170) is 162 ft, based on 84 wells with recorded depths in the state Ecology database. Half fall between 135 ft and 240 ft; 90% are shallower than 300 ft.

How much does it cost to drill a well in Rosalia (99170)?

Applying published per-foot rates to the local median depth of 162 ft: drilling and casing alone typically runs $4,050–$10,530; a complete system including pump, pressure tank, and hookup typically runs $9,720–$16,200. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in Rosalia (99170)?

The median static water level is 26 ft below ground surface (middle half of wells: 24 ft–54 ft), from 19 measurements.

Drilled depth distribution

0–50 ft 0 50–100 ft 6 100–150 ft 26 150–200 ft 18 200–300 ft 23 300–400 ft 9 400–600 ft 2 600+ ft 0
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Part of Whitman 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.