AMERICAN HORSE SCHOOL
South Dakota - Community Water System - PWSID: 084690466
System Information
| PWSID | 084690466 |
| System Name | AMERICAN HORSE SCHOOL |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 08 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Mar 4, 1980 |
| Last Reported | Jun 29, 2026 |
Location & Contact
| State | South Dakota |
| City | ALLEN |
| ZIP Code | 57714 |
| Address | P. O. Box 660 (100 Main Street) |
| Organization | PHELPS, ALICE |
| Phone | 605-455-1209 |
Population & Service
| Population Served | 400 |
| Service Connections | 19 |
Drinking Water Violations (183)
This water system has 183 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Nov 4, 2025 | - | |
| Jan 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Nov 4, 2025 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | Yes | - | - | - | Resolved | Jun 30, 2024 | - | |
| Sep 1, 2019 | Aug 31, 2020 | MR | No | Yes | - | 0.060 mg/L | - | Resolved | Aug 31, 2020 | - | |
| Sep 1, 2019 | Aug 31, 2020 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Aug 31, 2020 | - | |
| Jul 1, 2016 | - | MR | No | No | - | TT | - | Resolved | Jun 19, 2017 | - | |
| Aug 1, 2011 | Aug 31, 2011 | MR | No | No | - | 5% of samples | - | Resolved | Aug 31, 2011 | - | |
| Jul 1, 2011 | Jul 31, 2011 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jul 31, 2011 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jan 1, 2010 | Dec 31, 2010 | MR | No | Yes | - | 10 mg/L | - | Resolved | Dec 31, 2010 | - | |
| Jul 1, 2008 | - | Other | No | No | - | - | - | Resolved | Sep 18, 2008 | - | |
| Dec 1, 2007 | Dec 31, 2007 | MR | No | No | - | 5% of samples | - | Resolved | Dec 31, 2007 | - | |
| Oct 1, 2007 | - | Other | No | No | - | - | - | Resolved | Dec 6, 2007 | - | |
| Oct 1, 2007 | - | Other | No | No | - | - | - | Resolved | Dec 6, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Dec 6, 2007 | - | |
| Jul 1, 2007 | - | Other | No | No | - | - | - | Resolved | Dec 6, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 15, 2007 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 15, 2007 | - | |
| Jan 1, 2007 | - | MR | No | No | - | TT | - | Resolved | Aug 15, 2007 | - | |
| Jan 1, 2007 | Dec 31, 2007 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2007 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Sep 1, 2005 | Sep 30, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Sep 30, 2005 | - | |
| Feb 1, 2005 | Feb 28, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2005 | - | |
| Feb 1, 2005 | Feb 28, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2005 | - | |
| Feb 1, 2005 | Feb 28, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2005 | - | |
| Feb 1, 2005 | Feb 28, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2005 | - | |
| Feb 1, 2005 | Feb 28, 2005 | MR | No | No | - | 5% of samples | - | Resolved | Feb 28, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.7 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.04 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.0002 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.1 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.080 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2005 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2005 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.6 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.2 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - | |
| Jan 1, 2005 | Dec 31, 2007 | MR | No | Yes | - | 0.005 mg/L | - | Resolved | Dec 31, 2007 | - |
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.