⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Okanogan County › Tonasket (98855)

Tonasket, WA (98855): well depth, water level & drilling cost

✓ 1,622 Ecology records · Okanogan County

200 ftmedian well depth
100 ft–302 fttypical depth range
50 ftmedian static water level
5 gpmmedian yield (314 tests)

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How deep are wells in and around Tonasket (98855), Washington?

The median drilled well depth in and around Tonasket (98855) is 200 ft, based on 1,612 wells with recorded depths in the state Ecology database. Half fall between 100 ft and 302 ft; 90% are shallower than 425 ft.

How much does it cost to drill a well in and around Tonasket (98855)?

Applying published per-foot rates to the local median depth of 244 ft: drilling and casing alone typically runs $6,100–$15,860; a complete system including pump, pressure tank, and hookup typically runs $14,640–$24,400. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Tonasket (98855)?

The median static water level is 50 ft below ground surface (middle half of wells: 25 ft–99 ft), from 321 measurements.

Drilled depth distribution

0–50 ft 114 50–100 ft 272 100–150 ft 262 150–200 ft 154 200–300 ft 336 300–400 ft 250 400–600 ft 175 600+ ft 49
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Part of Okanogan 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.