Gregg's Drilling & Excavating
Recorded as the driller on 663 water wells across 12 South Dakota counties in the South Dakota DANR well completion report database (NR68), most in Corson County. Well-log records span 1999–2025.
Counties served
Wells drilled by Gregg's Drilling & Excavating, by county, across the full record.
| County | Wells drilled |
|---|---|
| Corson County | 280 |
| Dewey County | 177 |
| Ziebach County | 80 |
| Walworth County | 55 |
| Campbell County | 38 |
| Mcpherson County | 17 |
| Meade County | 7 |
| Perkins County | 4 |
| Edmunds County | 2 |
| Haakon County | 1 |
| Harding County | 1 |
| Hughes County | 1 |
Well characteristics
Across the wells Gregg's Drilling & Excavating has drilled, the median depth is 102 ft (middle half 78 ft–176 ft), median tested yield —, and median static water level 27 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Gregg's Drilling & Excavating, straight from the public SD DANR record:
"Records span 1999–2025" 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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