Washington Well Data › Kittitas County
Kittitas County, Washington: well depth, water level & drilling cost
✓ 6,562 Ecology records · verified 2026-10-02
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How deep are wells in Kittitas County, Washington?
The median drilled well depth in Kittitas County is 198 ft, based on 6,540 wells with recorded depths in the state Ecology database. Half of all wells fall between 120 ft and 300 ft; 90% are shallower than 445 ft. Wells drilled since 2016 have a median depth of 225 ft.
How much does it cost to drill a well in Kittitas County?
Applying published per-foot rates to the local median depth of 225 ft: drilling and casing alone typically runs $5,625–$14,625; a complete system including pump, pressure tank, and hookup typically runs $13,500–$22,500. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Kittitas County?
The median static water level is 64 ft below ground surface (middle half of wells: 30 ft–135 ft), from 880 measurements.
How much water do wells in Kittitas County produce?
The median tested yield is 22 gpm (middle half: 10 gpm–40 gpm), from 957 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Kittitas 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 |
|---|---|
| Jeremy Bach | 390 |
| Brett Phythian | 176 |
| Craig Wamsley | 78 |
| Richard Dodrill | 48 |
| Chris Gregory | 37 |
| Alex Kerslake | 30 |
| Larry Webley | 28 |
| Lance Sabey | 24 |
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Well records by ZIP code in Kittitas County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Ellensburg (98926) — 2,045 wells, median 190 ft
- South Cle Elum (98943) — 1,026 wells, median 214 ft
- Thorp (98946) — 887 wells, median 210 ft
- Kittitas (98934) — 761 wells, median 200 ft
- 98922 — 726 wells, median 221 ft
- Easton (98925) — 352 wells, median 85 ft
- Ronald (98940) — 333 wells, median 192 ft
- Roslyn (98941) — 322 wells, median 171 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.