⟁ California Well Data field records · 2026 survey

California Well Data › San Luis Obispo County › Arroyo Grande (93420)

Arroyo Grande, CA (93420): well depth, water level & drilling cost

✓ 478 DWR records · San Luis Obispo County

130 ftmedian well depth
90 ft–240 fttypical depth range
25 ftmedian static water level
25 gpmmedian yield (123 tests)

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How deep are wells in and around Arroyo Grande (93420), California?

The median drilled well depth in and around Arroyo Grande (93420) is 130 ft, based on 194 wells with recorded depths in the state DWR database. Half fall between 90 ft and 240 ft; 90% are shallower than 394 ft.

How much does it cost to drill a well in and around Arroyo Grande (93420)?

Applying published per-foot rates to the local median depth of 130 ft: drilling and casing alone typically runs $3,250–$8,450; a complete system including pump, pressure tank, and hookup typically runs $7,800–$13,000. Actual quotes depend on site access, geology, and casing requirements.

What is the static water level in and around Arroyo Grande (93420)?

The median static water level is 25 ft below ground surface (middle half of wells: 18 ft–45 ft), from 160 measurements.

Drilled depth distribution

0–50 ft 6 50–100 ft 51 100–150 ft 49 150–200 ft 23 200–300 ft 28 300–400 ft 17 400–600 ft 18 600+ ft 2
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Part of San Luis Obispo 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.