Esko Public School, ISD #99
Minnesota — Non-Transient Non-Community — PWSID: MN5090090
System Information
| PWSID | MN5090090 |
| System Name | Esko Public School, ISD #99 |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 05 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Jan 23, 1981 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Minnesota |
| City | Esko |
| ZIP Code | 55733 |
| Address | PO Box 10 |
| Organization | Independent School District No. 99 |
| Phone | — |
Population & Service
| Population Served | 1,200 |
| Service Connections | 2 |
Drinking Water Violations (65)
This water system has 65 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2016 | Jun 30, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | May 10, 2016 | — | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2016 | — | |
| Apr 1, 2016 | Apr 30, 2016 | MON | No | Yes | — | — | — | Resolved | Apr 30, 2016 | — | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | May 10, 2016 | — | |
| Apr 1, 2016 | Jun 30, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | May 10, 2016 | — | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | — | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | — | |
| Mar 1, 2016 | Mar 31, 2016 | MR | No | No | — | 5% of samples | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jan 1, 2016 | Mar 31, 2016 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2016 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Jul 1, 2014 | Jul 31, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2014 | — | |
| Jun 1, 2014 | Jun 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Jun 1, 2014 | Jun 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Jun 30, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Jun 30, 2014 | — | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Apr 1, 2014 | Apr 30, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Apr 30, 2014 | — | |
| Jan 1, 2014 | Jan 31, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Mar 31, 2014 | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Jan 31, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Sep 11, 2013 | — | |
| Jan 1, 2014 | Jan 31, 2014 | MR | No | No | — | 5% of samples | — | Resolved | Sep 11, 2013 | — | |
| Jul 1, 2013 | Jul 31, 2013 | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2013 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | — | 4.0 mg/L | — | Archived | Sep 30, 2013 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | — | 4.0 mg/L | — | Archived | Sep 30, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Jan 1, 2013 | Mar 31, 2013 | MR | No | No | — | 4.0 mg/L | — | Resolved | Mar 31, 2013 | — | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2012 | — | |
| Dec 1, 2012 | Dec 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Dec 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 | No | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2012 | — | |
| Jul 1, 2012 | Jul 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Jul 31, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | No | — | 4.0 mg/L | — | Resolved | Sep 30, 2012 | — | |
| Jul 1, 2012 | Sep 30, 2012 | MR | No | No | — | 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.