Ralph A Johnson
Recorded as the driller on 35 water wells across 1 California county in the California Department of Water Resources (DWR) Well Completion Reports database, most in Napa County. Well-log records span 1950–1967.
Counties served
Wells drilled by Ralph A Johnson, by county, across the full record.
| County | Wells drilled |
|---|---|
| Napa County | 35 |
Well characteristics
Across the wells Ralph A Johnson has drilled, the median depth is 105 ft (middle half 96 ft–181 ft), median tested yield 25 gpm, and median static water level 78 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
"Records span 1950–1967" refers to the earliest and latest well logs attributed to this company in the DWR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.
Free for property owners. We route your request only to licensed drillers who actually file well logs in Napa County — never sold elsewhere.
Is this your company?
This page is built from the public DWR well-log record and helps property owners find a driller. Claim it (free) to confirm the details are right and give customers a way to reach you.
This directory helps property owners find a driller, using public DWR records. Claim your page to confirm the details are accurate and give customers a way to reach you. Free — reviewed before anything goes live.
Want the top spot too? Featured lifts you to the top of the California driller directory, above the unclaimed listings, and marks you with a ★ and a Featured badge on every county ranking you appear in — $49/mo, cancel anytime. County rankings stay ordered by wells actually drilled, so a sponsor never outranks the record. Claiming stays free either way.