Illa, C.
Recorded as the driller on 160 water wells across 12 Minnesota counties in the Minnesota County Well Index (CWI), maintained by the Minnesota Geological Survey and the Minnesota Department of Health, most in Washington County. Well-log records span 1998–2025.
Counties served
Wells drilled by Illa, C., by county, across the full record.
| County | Wells drilled |
|---|---|
| Washington County | 57 |
| Dakota County | 52 |
| Goodhue County | 35 |
| Rice County | 4 |
| Scott County | 4 |
| Wabasha County | 2 |
| Olmsted County | 1 |
| Hennepin County | 1 |
| Faribault County | 1 |
| Dodge County | 1 |
| Le Sueur County | 1 |
| Ramsey County | 1 |
Well characteristics
Across the wells Illa, C. has drilled, the median depth is 332 ft (middle half 260 ft–400 ft), median tested yield 20 gpm, and median static water level 90 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Illa, C., straight from the public MGS/MDH record:
"Records span 1998–2025" refers to the earliest and latest well logs attributed to this company in the MGS/MDH 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 Washington County, including Illa, C..
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