Ground Source Inc.
Recorded as the driller on 2,237 water wells across 41 Wisconsin counties in the Wisconsin Department of Natural Resources Groundwater Retrieval Network (GRN) well-construction records, most in Manitowoc County. Well-log records span 2007–2026.
Counties served
Wells drilled by Ground Source Inc., by county, across the full record.
| County | Wells drilled |
|---|---|
| Manitowoc County | 601 |
| Outagamie County | 311 |
| Winnebago County | 299 |
| Brown County | 253 |
| Door County | 166 |
| Calumet County | 152 |
| Marinette County | 95 |
| Oconto County | 59 |
| Sheboygan County | 57 |
| Kewaunee County | 48 |
| Waupaca County | 42 |
| Waushara County | 22 |
…and 29 more Wisconsin counties.
Well characteristics
Across the wells Ground Source Inc. has drilled, the median depth is 200 ft (middle half 140 ft–280 ft), median tested yield 25 gpm, and median static water level 40 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Ground Source Inc., straight from the public WI DNR record:
"Records span 2007–2026" refers to the earliest and latest well logs attributed to this company in the WI DNR 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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