Johnson
Recorded as the driller on 658 water wells across 31 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Prairie County. Well-log records span 1946–2005.
Counties served
Wells drilled by Johnson, by county, across the full record.
| County | Wells drilled |
|---|---|
| Prairie County | 215 |
| Lake County | 105 |
| Lewis and Clark County | 75 |
| Fergus County | 46 |
| Dawson County | 43 |
| Yellowstone County | 40 |
| Carter County | 32 |
| Roosevelt County | 26 |
| Powder River County | 11 |
| Valley County | 8 |
| Fallon County | 6 |
| Mccone County | 5 |
…and 19 more Montana counties.
Well characteristics
Across the wells Johnson has drilled, the median depth is 100 ft (middle half 41 ft–219 ft), median tested yield 12 gpm, and median static water level 45 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Johnson, straight from the public MBMG record:
"Records span 1946–2005" refers to the earliest and latest well logs attributed to this company in the MBMG 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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