Hansen Environmental Drilling
Recorded as the driller on 1,195 water wells across 39 Montana counties in Montana Bureau of Mines and Geology Ground Water Information Center (GWIC), most in Valley County. Well-log records span 1938–2026.
Counties served
Wells drilled by Hansen Environmental Drilling, by county, across the full record.
| County | Wells drilled |
|---|---|
| Valley County | 239 |
| Roosevelt County | 147 |
| Custer County | 94 |
| Dawson County | 94 |
| Richland County | 93 |
| Yellowstone County | 78 |
| Phillips County | 64 |
| Rosebud County | 42 |
| Hill County | 41 |
| Sheridan County | 37 |
| Fallon County | 22 |
| Musselshell County | 21 |
Show all 39 counties
Well characteristics
Across the wells Hansen Environmental Drilling has drilled, the median depth is 25 ft (middle half 19 ft–30 ft), median tested yield 8 gpm, and median static water level 16 ft below ground surface. These summarize the company's own filed logs, not a marketing claim.
Original drilling logs
Recent well logs filed by Hansen Environmental Drilling, straight from the public MBMG record:
"Records span 1938–2026" 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.
Free. Goes to licensed drillers working Valley County, including Hansen Environmental Drilling.
Is this your company?
This page is built from the public GWIC well-log record and helps property owners find a driller. Claim it (free) to confirm the details are right and give customers a way to reach you.
This directory helps property owners find a driller, using public GWIC records. Claim your page to confirm the details are accurate and give customers a way to reach you. Free — reviewed before anything goes live.