Colwell & Son Drilling
Recorded as the driller on 41 water wells across 4 South Dakota counties in the South Dakota DANR well completion report database (NR68), most in Davison County. Well-log records span 1975–1981.
Counties served
Wells drilled by Colwell & Son Drilling, by county, across the full record.
| County | Wells drilled |
|---|---|
| Davison County | 36 |
| Hanson County | 3 |
| Douglas County | 1 |
| Hutchinson County | 1 |
Well characteristics
Across the wells Colwell & Son Drilling has drilled, the median depth is 71 ft (middle half 57 ft–117 ft), median tested yield —, and median static water level — below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Colwell & Son Drilling, straight from the public SD DANR record:
"Records span 1975–1981" refers to the earliest and latest well logs attributed to this company in the SD DANR database — the state digitized older paper logs, so the first date is the oldest record on file, not necessarily the company's founding year.
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