⟁ Washington Well Data field records · 2026 survey

Washington Well Data › San Juan County › Olga (98279)

Olga, WA (98279): well depth, water level & drilling cost

✓ 253 Ecology records · San Juan County

360 ftmedian well depth
180 ft–500 fttypical depth range
10 ftmedian static water level
2 gpmmedian yield (11 tests)

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How deep are wells in and around Olga (98279), Washington?

The median drilled well depth in and around Olga (98279) is 360 ft, based on 249 wells with recorded depths in the state Ecology database. Half fall between 180 ft and 500 ft; 90% are shallower than 600 ft.

How much does it cost to drill a well in and around Olga (98279)?

Applying published per-foot rates to the local median depth of 360 ft: drilling and casing alone typically runs $9,000–$23,400; a complete system including pump, pressure tank, and hookup typically runs $21,600–$36,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Olga (98279)?

The median static water level is 10 ft below ground surface (middle half of wells: 4 ft–18 ft), from 11 measurements.

Drilled depth distribution

0–50 ft 24 50–100 ft 14 100–150 ft 13 150–200 ft 16 200–300 ft 35 300–400 ft 43 400–600 ft 65 600+ ft 39
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Part of San Juan 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.