⟁ California Well Data field records · 2026 survey

California Well Data › Ventura County › Thousand Oaks (91358)

Thousand Oaks, CA (91358): well depth, water level & drilling cost

✓ 99 DWR records · Ventura County

106 ftmedian well depth
67 ft–248 fttypical depth range
24 ftmedian static water level
30 gpmmedian yield (17 tests)

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How deep are wells in and around Thousand Oaks (91358), California?

The median drilled well depth in and around Thousand Oaks (91358) is 106 ft, based on 45 wells with recorded depths in the state DWR database. Half fall between 67 ft and 248 ft; 90% are shallower than 358 ft.

How much does it cost to drill a well in and around Thousand Oaks (91358)?

Applying published per-foot rates to the local median depth of 106 ft: drilling and casing alone typically runs $2,650–$6,890; a complete system including pump, pressure tank, and hookup typically runs $6,360–$10,600. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Thousand Oaks (91358)?

The median static water level is 24 ft below ground surface (middle half of wells: 6 ft–71 ft), from 8 measurements.

Drilled depth distribution

0–50 ft 7 50–100 ft 13 100–150 ft 7 150–200 ft 3 200–300 ft 6 300–400 ft 6 400–600 ft 2 600+ ft 1
Looking at a specific property in Thousand Oaks (91358)?

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Part of Ventura County well records.

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), grouped by ZIP from the recorded address. Cost estimate applies published per-foot ranges to the local median depth — full methodology & sources.