ANTELOPE COUNTY WATER AND SEWER
Montana — Community Water System — PWSID: MT0003203
System Information
| PWSID | MT0003203 |
| System Name | ANTELOPE COUNTY WATER AND SEWER |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jul 1, 1987 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | ANTELOPE |
| ZIP Code | 59211 |
| Address | 210 Main St |
| Organization | FELLON, MICHELLE |
| Phone | 406-480-0791 |
Population & Service
| Population Served | 59 |
| Service Connections | 36 |
Drinking Water Violations (136)
This water system has 136 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 1, 2025 | Dec 31, 2025 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2025 | — | |
| Dec 1, 2025 | Dec 31, 2025 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2025 | — | |
| Dec 1, 2025 | Dec 31, 2025 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2025 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Dec 1, 2024 | Dec 31, 2024 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2024 | — | |
| Jun 1, 2023 | Jun 30, 2023 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2023 | — | |
| Jun 1, 2023 | Jun 30, 2023 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2023 | — | |
| Jun 1, 2023 | Jun 30, 2023 | MON | No | Yes | — | — | — | Resolved | Jun 30, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Jan 1, 2023 | Dec 31, 2023 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Oct 18, 2023 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Dec 1, 2021 | Dec 31, 2021 | MON | No | Yes | — | — | — | Resolved | Dec 31, 2021 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Aug 23, 2021 | — | |
| Jul 1, 2021 | — | Other | No | No | — | — | — | Resolved | Aug 23, 2021 | — | |
| Jul 1, 2020 | — | Other | No | No | — | — | — | Resolved | Aug 7, 2020 | — | |
| Jul 1, 2020 | — | Other | No | No | — | — | — | Resolved | Aug 7, 2020 | — | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2020 | — | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2020 | — | |
| Jan 1, 2020 | Jan 31, 2020 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2020 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Sep 1, 2019 | Sep 30, 2019 | MON | No | Yes | — | — | — | Resolved | Sep 30, 2019 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Aug 31, 2019 | Aug 30, 2020 | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 30, 2020 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 141.3 UG/L | 0.080 mg/L | 80 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 141.3 UG/L | 0.080 mg/L | 80 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 141.3 UG/L | 0.080 mg/L | 80 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 141.3 UG/L | 0.080 mg/L | 80 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 88.5 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 88.5 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 88.5 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 88.5 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 88.5 UG/L | 0.060 mg/L | 60 | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MCL | Yes | No | 141.3 UG/L | 0.080 mg/L | 80 | Resolved | Jun 30, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .1373 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .0878 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .0878 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .0878 MG/L | 0.060 mg/L | .06 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .1373 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — | |
| Jan 1, 2015 | Mar 31, 2015 | MCL | Yes | No | .1373 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2015 | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.