MOUNTAIN CITY OF
North Dakota — Community Water System — PWSID: ND3400707
System Information
| PWSID | ND3400707 |
| System Name | MOUNTAIN CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | North Dakota |
| City | MOUNTAIN |
| ZIP Code | 58262 |
| Address | — |
| Organization | MOORE, SYLVIA |
| Phone | 701-993-8370 |
Population & Service
| Population Served | 92 |
| Service Connections | 62 |
Drinking Water Violations (106)
This water system has 106 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Nov 18, 2025 | — | MR | No | No | — | TT | — | Unaddressed | — | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2022 | Sep 30, 2022 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2022 | — | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2021 | — | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2021 | — | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2021 | — | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | — | — | — | Resolved | Jul 31, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jul 1, 2021 | Sep 30, 2021 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2021 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Mar 31, 2018 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | MON | No | Yes | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2017 | — | |
| Jan 1, 2017 | Mar 31, 2017 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2017 | — | |
| May 1, 2015 | May 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2015 | — | |
| May 1, 2015 | May 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2015 | — | |
| May 1, 2015 | May 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2015 | — | |
| May 1, 2015 | May 31, 2015 | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2015 | — | |
| Apr 1, 2015 | Jun 30, 2015 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Jun 30, 2015 | — | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2013 | — | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2013 | — | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2013 | — | |
| Nov 1, 2013 | Nov 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Oct 1, 2013 | Dec 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | Yes | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | — |
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.