Washington Well Data › Lewis County
Lewis County, Washington: well depth, water level & drilling cost
✓ 12,677 Ecology records · verified 2026-10-02
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How deep are wells in Lewis County, Washington?
The median drilled well depth in Lewis County is 100 ft, based on 12,602 wells with recorded depths in the state Ecology database. Half of all wells fall between 60 ft and 159 ft; 90% are shallower than 260 ft. Wells drilled since 2016 have a median depth of 100 ft.
How much does it cost to drill a well in Lewis County?
Applying published per-foot rates to the local median depth of 100 ft: drilling and casing alone typically runs $2,500–$6,500; a complete system including pump, pressure tank, and hookup typically runs $6,000–$10,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Lewis County?
The median static water level is 34 ft below ground surface (middle half of wells: 17 ft–73 ft), from 3,577 measurements.
How much water do wells in Lewis County produce?
The median tested yield is 15 gpm (middle half: 7 gpm–30 gpm), from 2,969 pump tests. A typical household needs 5–10 gpm.
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Who drills wells in Lewis 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 |
|---|---|
| Christopher Jones | 1,233 |
| Daniel King | 514 |
| John Brazeau | 170 |
| Willie Williams | 147 |
| Robert Laymon | 144 |
| Eric Brasher | 98 |
| Terry Gavin | 69 |
| Mark Wiese | 52 |
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Well records by ZIP code in Lewis County
Median depth, water level, and yield for each ZIP code with recorded wells.
- 98532 — 1,573 wells, median 120 ft
- Winlock (98596) — 1,239 wells, median 112 ft
- Napavine (98565) — 1,110 wells, median 103 ft
- Onalaska (98570) — 1,068 wells, median 120 ft
- Toledo (98591) — 1,010 wells, median 60 ft
- Centralia (98531) — 778 wells, median 89 ft
- Adna (98522) — 736 wells, median 122 ft
- Ethel (98542) — 536 wells, median 80 ft
- Randle (98377) — 534 wells, median 68 ft
- Mossyrock (98564) — 532 wells, median 200 ft
- Glenoma (98336) — 458 wells, median 60 ft
- Salkum (98582) — 449 wells, median 169 ft
- Cinebar (98533) — 409 wells, median 120 ft
- Vader (98593) — 378 wells, median 128 ft
- Packwood (98361) — 363 wells, median 59 ft
- Morton (98356) — 359 wells, median 81 ft
- Galvin (98544) — 343 wells, median 60 ft
- Doty (98539) — 214 wells, median 100 ft
- Silver Creek (98585) — 210 wells, median 174 ft
- Mineral (98355) — 184 wells, median 69 ft
- Pe Ell (98572) — 124 wells, median 89 ft
- Ryderwood (98581) — 76 wells, median 120 ft
- Curtis (98538) — 57 wells, median 69 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.