Washington Well Data › Adams County
Adams County, Washington: well depth, water level & drilling cost
✓ 806 Ecology records · verified 2026-07-28
How deep are wells in Adams County, Washington?
The median drilled well depth in Adams County is 300 ft, based on 802 wells with recorded depths in the state Ecology database. Half of all wells fall between 189 ft and 525 ft; 90% are shallower than 1,214 ft. Wells drilled since 2016 have a median depth of 280 ft.
How much does it cost to drill a well in Adams County?
Applying published per-foot rates to the local median depth of 280 ft: drilling and casing alone typically runs $7,000–$18,200; a complete system including pump, pressure tank, and hookup typically runs $16,800–$28,000. Actual quotes depend on site access, geology, and casing requirements.
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What is the static water level in Adams County?
The median static water level is 112 ft below ground surface (middle half of wells: 60 ft–240 ft), from 236 measurements.
How much water do wells in Adams County produce?
The median tested yield is 40 gpm (middle half: 25 gpm–68 gpm), from 284 pump tests. A typical household needs 5–10 gpm.
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Drilled depth distribution
Who drills wells in Adams County?
Licensed drillers by number of wells completed in this county since 2016, per filed well reports (license roster: Washington Department of Ecology).
| Driller | Wells since 2016 |
|---|---|
| Salvador Valenciano | 34 |
| Daniel Eilers | 33 |
| Alex Kerslake | 27 |
| Tyson Martel | 25 |
| Jose Rojas | 17 |
| Kevin Boyd | 10 |
| James Hickam | 10 |
| Brian Heinlen | 7 |
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Median depth, water level, and yield for each ZIP code with recorded wells.
Method: medians computed from Ecology records (water wells only — soil/environmental borings and decommissions excluded; depths 0–5,000 ft). Cost estimate applies published per-foot ranges (checked 2026-06-11) to the local median depth — full methodology & sources.