⟁ Washington Well Data field records · 2026 survey

Washington Well Data › Kittitas County › Roslyn (98941)

Roslyn, WA (98941): well depth, water level & drilling cost

✓ 322 Ecology records · Kittitas County

171 ftmedian well depth
90 ft–341 fttypical depth range
81 ftmedian static water level
14 gpmmedian yield (11 tests)

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How deep are wells in and around Roslyn (98941), Washington?

The median drilled well depth in and around Roslyn (98941) is 171 ft, based on 322 wells with recorded depths in the state Ecology database. Half fall between 90 ft and 341 ft; 90% are shallower than 500 ft.

How much does it cost to drill a well in and around Roslyn (98941)?

Applying published per-foot rates to the local median depth of 171 ft: drilling and casing alone typically runs $4,275–$11,115; a complete system including pump, pressure tank, and hookup typically runs $10,260–$17,100. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Roslyn (98941)?

The median static water level is 81 ft below ground surface (middle half of wells: 59 ft–140 ft), from 10 measurements.

Drilled depth distribution

0–50 ft 26 50–100 ft 60 100–150 ft 56 150–200 ft 32 200–300 ft 38 300–400 ft 48 400–600 ft 44 600+ ft 18
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Part of Kittitas 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.