Who is actually doing the work in Sweet Grass County, drawn from state well logs and county rosters, and how to get quotes.
Depth is the median of 200 water wells completed in Sweet Grass County in the last five years. Half fell between 60 and 240 feet. Your parcel can sit well outside that range; nearby wells tell you more than any county figure.
Ranked by wells completed in the county over the last five years, from the well logs each company filed with the state. Recent work matters more than a long history.
| Company | Last 5 yrs | Last 10 yrs | Latest | Median depth |
|---|---|---|---|---|
| Thompson Drilling & Pump | 73 | 73 | 2026 | 150 ft |
| Birchell Drilling | 62 | 171 | 2023 | 110 ft |
| Potts Drilling Inc | 18 | 18 | 2025 | 80 ft |
| Aaqua Drilling Inc | 15 | 21 | 2026 | 130 ft |
| Outlaw Drilling & Pump, Llc | 8 | 8 | 2026 | 137 ft |
| A-1 Drilling | 4 | 8 | 2025 | 140 ft |
| Bertram Drilling Inc | 4 | 4 | 2021 | 80 ft |
| 406 Water Wells, Llc | 4 | 4 | 2026 | 100 ft |
| Environmental West Exploration | 4 | 4 | 2021 | 63 ft |
| American Drilling & Supply | 3 | 6 | 2025 | 155 ft |
See all 19 drilling companies in Sweet Grass County →
Source: MBMG Ground Water Information Center well logs. Counts include only logs that name a company. Companies that have not filed a log here in ten years are left off.
Working near a stream? 310 permits in Sweet Grass County →
Septic permits in Montana are issued locally. Before anything else, call the Sweet Grass County sanitarian or environmental health office and ask for a site evaluation; on raw land it belongs before you close. Our septic guide explains what they will look for.
Tell us what you need. We'll send your request to up to three contractors who work in Sweet Grass County, and they contact you directly. Free for landowners.
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