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 | Nov 17, 2025 |
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 (156)
This water system has 156 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 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2025 | Dec 31, 2025 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Unaddressed | — | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2024 | Jun 30, 2024 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Jun 30, 2024 | Revised Total Coliform Rule |
| Sep 1, 2019 | Aug 31, 2020 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Sep 1, 2019 | Aug 31, 2020 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2020 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jul 1, 2016 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jun 19, 2017 | Lead and Copper Rule |
| Aug 1, 2011 | Aug 31, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2011 | Total Coliform Rule |
| Jul 1, 2011 | Jul 31, 2011 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jul 31, 2011 | Total Coliform Rule |
| Jan 1, 2010 | Dec 31, 2010 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2010 | Nitrate Rule |
| Jan 1, 2010 | Dec 31, 2010 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2010 | Nitrate Rule |
| Jul 1, 2008 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 18, 2008 | Consumer Confidence Rule |
| Dec 1, 2007 | Dec 31, 2007 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 2007 | Total Coliform Rule |
| Oct 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 6, 2007 | Consumer Confidence Rule |
| Oct 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 6, 2007 | Consumer Confidence Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 6, 2007 | Consumer Confidence Rule |
| Jul 1, 2007 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 6, 2007 | Consumer Confidence Rule |
| Jan 1, 2007 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 15, 2007 | Lead and Copper Rule |
| Jan 1, 2007 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 15, 2007 | Lead and Copper Rule |
| Jan 1, 2007 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Aug 15, 2007 | Lead and Copper Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Jan 1, 2007 | Dec 31, 2007 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2007 | Nitrate Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Sep 1, 2005 | Sep 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2005 | Total Coliform Rule |
| Feb 1, 2005 | Feb 28, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2005 | Total Coliform Rule |
| Feb 1, 2005 | Feb 28, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2005 | Total Coliform Rule |
| Feb 1, 2005 | Feb 28, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2005 | Total Coliform Rule |
| Feb 1, 2005 | Feb 28, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2005 | Total Coliform Rule |
| Feb 1, 2005 | Feb 28, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Feb 28, 2005 | Total Coliform Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2007 | Glyphosate | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Glyphosate | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Endothall | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Endothall | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Methoxychlor | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | BHC-GAMMA | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Endrin | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Styrene | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Endrin | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2007 | Synthetic Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2007 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2005 | Dec 31, 2005 | Nitrate-Nitrite | MR | No | Yes | — | — | — | Resolved | Dec 31, 2005 | Nitrate Rule |
| Jan 1, 2005 | Dec 31, 2007 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | o-Dichlorobenzene | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | 1,1,1-Trichloroethane | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | 1,1,2-Trichloroethane | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Trichloroethylene | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
| Jan 1, 2005 | Dec 31, 2007 | Carbon tetrachloride | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2007 | Volatile Organic Chemicals |
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.