Washington Well Data › Wahkiakum County
Wahkiakum County, Washington: well depth, water level & drilling cost
✓ 450 Ecology records · verified 2026-10-02
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How deep are wells in Wahkiakum County, Washington?
The median drilled well depth in Wahkiakum County is 120 ft, based on 442 wells with recorded depths in the state Ecology database. Half of all wells fall between 80 ft and 182 ft; 90% are shallower than 305 ft. Wells drilled since 2016 have a median depth of 124 ft.
How much does it cost to drill a well in Wahkiakum County?
Applying published per-foot rates to the local median depth of 120 ft: drilling and casing alone typically runs $3,000–$7,800; a complete system including pump, pressure tank, and hookup typically runs $7,200–$12,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Wahkiakum County?
The median static water level is 25 ft below ground surface (middle half of wells: 13 ft–72 ft), from 113 measurements.
How much water do wells in Wahkiakum County produce?
The median tested yield is 16 gpm (middle half: 9 gpm–37 gpm), from 126 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Wahkiakum 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 |
|---|---|
| Andrew Orth | 33 |
| Timothy Lapham | 26 |
| Christopher Mcghee | 23 |
| Michael Pitner | 8 |
| Larry Webley | 3 |
| Arthur Mcmullen | 2 |
| Jordan Aspaas | 2 |
| Mark Blackburn | 2 |
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Well records by ZIP code in Wahkiakum County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Cathlamet (98612) — 401 wells, median 150 ft
- Skamokawa (98647) — 82 wells, median 81 ft
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.