California Well Data › Tuolumne County
Tuolumne County, California: well depth, water level & drilling cost
✓ 5,864 DWR records · verified 2026-10-02
Pull every recorded well near a Tuolumne County address — $49
How deep are wells in Tuolumne County, California?
The median drilled well depth in Tuolumne County is 350 ft, based on 5,016 wells with recorded depths in the state DWR database. Half of all wells fall between 200 ft and 550 ft; 90% are shallower than 775 ft. Wells drilled since 2016 have a median depth of 580 ft.
How much does it cost to drill a well in Tuolumne County?
Applying published per-foot rates to the local median depth of 580 ft: drilling and casing alone typically runs $14,500–$37,700; a complete system including pump, pressure tank, and hookup typically runs $34,800–$58,000. Actual quotes depend on site access, geology, and casing requirements.
What is the static water level in Tuolumne County?
The median static water level is 55 ft below ground surface (middle half of wells: 30 ft–100 ft), from 1,081 measurements.
How much water do wells in Tuolumne County produce?
The median tested yield is 18 gpm (middle half: 7 gpm–40 gpm), from 1,873 pump tests. A typical household needs 5–10 gpm.
Drilled depth distribution
Who drills wells in Tuolumne County?
Companies by number of wells completed in this county since 2016, per filed well completion reports (California Department of Water Resources).
| Driller | Wells since 2016 |
|---|---|
| CANEPA AND SONS INC | 243 |
| TANKO BROS INC | 86 |
| CASCADE DRILLING L P | 7 |
| ALL WELL ABANDONMENT | 4 |
| CONETEC INC | 2 |
| WELL INDUSTRIES INC | 2 |
| YOSEMITE FALLS INC | 1 |
See every driller with wells on record in Tuolumne County, ranked →
Get quotes from local drillers
See every recorded well near any address — depths, water levels, yields, original driller's logs — in a one-time report.
Free lookup Property report — $49Free. Goes to licensed drillers working Tuolumne County.
Well records by ZIP code in Tuolumne County
Median depth, water level, and yield for each ZIP code with recorded wells.
- Standard (95373) — 802 wells, median 348 ft
- Columbia (95310) — 763 wells, median 300 ft
- Sonora (95370) — 751 wells, median 320 ft
- Jamestown (95327) — 627 wells, median 300 ft
- Soulsbyville (95372) — 462 wells, median 400 ft
- Twain Harte (95383) — 339 wells, median 340 ft
- La Grange (95329) — 337 wells, median 400 ft
- Big Oak Flat (95305) — 304 wells, median 310 ft
- Groveland (95321) — 276 wells, median 340 ft
- Tuolumne (95379) — 275 wells, median 444 ft
- Chinese Camp (95309) — 261 wells, median 375 ft
- Mi Wuk Village (95346) — 170 wells, median 350 ft
- Moccasin (95347) — 64 wells, median 500 ft
- Long Barn (95335) — 50 wells, median 253 ft
Method: medians computed from DWR records (filed well completion reports, water-supply uses only (destruction, repair and monitoring wells 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.