Who is actually doing the work in Carter County, drawn from state well logs and county rosters, and how to get quotes.
Depth is the median of 50 water wells completed in Carter County in the last five years. Half fell between 70 and 380 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 |
|---|---|---|---|---|
| Askin Drilling | 48 | 122 | 2025 | 220 ft |
| Ww Drilling | 9 | 12 | 2026 | 257 ft |
| Higgins Drilling Company | 7 | 11 | 2024 | 200 ft |
| Hansen Environmental Drilling | 6 | 6 | 2025 | 20 ft |
| Olympus Technical Services | 4 | 4 | 2022 | 20 ft |
| Diamond M Drilling Inc | 2 | 2 | 2021 | 148 ft |
| Keller Drilling | 1 | 4 | 2024 | 1842 ft |
| Mt Dept Of Transportation | 1 | 1 | 2022 | 26 ft |
| Aaaa Water Well Drilling Inc | 1 | 1 | 2023 | 440 ft |
| Water System Drilling Inc | 0 | 19 | 2018 | 62 ft |
See all 11 drilling companies in Carter 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 Carter County →
Septic permits in Montana are issued locally. Before anything else, call the Carter 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 Carter County, and they contact you directly. Free for landowners.
Request quotes