Knapp & Graham Inc.
Recorded as the driller on 596 water wells across 6 California counties in the California Department of Water Resources (DWR) Well Completion Reports database, most in Tulare County. Well-log records span 1950–1968.
Counties served
Wells drilled by Knapp & Graham Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Tulare County | 404 |
| Kings County | 110 |
| Fresno County | 48 |
| Kern County | 25 |
| San Bernardino County | 2 |
| Monterey County | 1 |
Well characteristics
Across the wells Knapp & Graham Inc. has drilled, the median depth is 220 ft (middle half 160 ft–385 ft), median tested yield 1,816 gpm, and median static water level 78 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Knapp & Graham Inc., straight from the public DWR record:
"Records span 1950–1968" 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. Goes to licensed drillers working Tulare County, including Knapp & Graham Inc..
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