AMERICAN HORSE SCHOOL

South Dakota — Community Water System — PWSID: 084690466

System Information

PWSID084690466
System NameAMERICAN HORSE SCHOOL
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeFederal
EPA Region08
Serves SchoolYes
WholesalerNo
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

StateSouth Dakota
CityALLEN
ZIP Code57714
AddressP. O. Box 660 (100 Main Street)
OrganizationPHELPS, ALICE
Phone605-455-1209

Population & Service

Population Served400
Service Connections19

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.

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