Geotek Engineering & Testing
Recorded as the driller on 661 water wells across 43 South Dakota counties in the South Dakota DANR well completion report database (NR68), most in Minnehaha County. Well-log records span 1989–2026.
Counties served
Wells drilled by Geotek Engineering & Testing, by county, across the full record.
| County | Wells drilled |
|---|---|
| Minnehaha County | 188 |
| Davison County | 39 |
| Clay County | 32 |
| Lincoln County | 32 |
| Brule County | 30 |
| Brookings County | 29 |
| Codington County | 27 |
| Yankton County | 25 |
| Beadle County | 22 |
| Deuel County | 22 |
| Lake County | 22 |
| Charles Mix County | 17 |
…and 31 more South Dakota counties.
Well characteristics
Across the wells Geotek Engineering & Testing has drilled, the median depth is 17 ft (middle half 15 ft–24 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 Geotek Engineering & Testing, straight from the public SD DANR record:
"Records span 1989–2026" 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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