Who is actually doing the work in Jefferson County, drawn from state well logs and county rosters, and how to get quotes.
Depth is the median of 429 water wells completed in Jefferson County in the last five years. Half fell between 159 and 398 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 |
|---|---|---|---|---|
| H & L Drilling Inc | 105 | 225 | 2026 | 264 ft |
| A-10 Drilling | 94 | 204 | 2026 | 275 ft |
| Okeefe Drilling Co | 70 | 98 | 2026 | 115 ft |
| Lindsay Drilling Co Inc | 58 | 119 | 2026 | 185 ft |
| Western Water Wells | 57 | 100 | 2026 | 218 ft |
| Red Tiger Drilling | 46 | 72 | 2026 | 201 ft |
| Aaaa Water Well Drilling Inc | 33 | 53 | 2025 | 325 ft |
| Ak Drilling Inc | 28 | 46 | 2026 | 196 ft |
| Van Dyken Drilling Inc | 7 | 11 | 2025 | 111 ft |
| Old Town Drilling | 7 | 7 | 2026 | 80 ft |
See all 22 drilling companies in Jefferson 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 Jefferson County →
Clancy Rader Creek Jefferson City Cardwell Whitehall Elkhorn Boulder Basin
Septic permits in Montana are issued locally. Before anything else, call the Jefferson 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 Jefferson County, and they contact you directly. Free for landowners.
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