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WOUNDED KNEE DISTRICT SCHOOL

South Dakota — Community Water System — PWSID: 084690467

System Information

PWSID084690467
System NameWOUNDED KNEE DISTRICT SCHOOL
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeFederal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedMar 4, 1980
Last ReportedNov 17, 2025

Location & Contact

StateSouth Dakota
CityMANDERSON
ZIP Code57756
AddressP.O. Box 350
OrganizationWHIRLWIND HORSE, MONICA
Phone605-867-4350

Population & Service

Population Served280
Service Connections30

Drinking Water Violations (125)

This water system has 125 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
Dec 30, 2024 — Lead and Copper Rule MR No No — TT — Resolved Mar 4, 2025 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Aug 6, 2024 Lead and Copper Rule
Apr 1, 2023 Apr 30, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2023 Surface Water Treatment Rule
Nov 1, 2022 Nov 30, 2022 Surface Water Treatment Rule TT Yes No — — — Resolved Nov 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2022 Surface Water Treatment Rule
Apr 1, 2022 Apr 30, 2022 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2022 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Jul 31, 2022 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Jul 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Jul 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Jul 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jul 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2015 Sep 30, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2015 Total Coliform Rule
May 16, 2015 — Groundwater Rule TT Yes No — — — Resolved Apr 19, 2018 Ground Water Rule
Nov 1, 2014 Nov 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2014 Total Coliform Rule
Apr 1, 2011 Apr 30, 2011 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Apr 30, 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
Oct 1, 2009 Dec 31, 2009 Chlorine MR No No — 4.0 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2008 Dec 31, 2010 Simazine MR No Yes — 0.004 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 LASSO MR No Yes — — — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,3,7,8-TCDD MR No Yes — 0.00000003 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,4-D MR No Yes — 0.07 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-DIBROMO-3-CHLOROPROPANE MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 ETHYLENE DIBROMIDE MR No Yes — 0.00005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Chlordane MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Dalapon MR No Yes — 0.2 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Dinoseb MR No Yes — 0.007 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Total Polychlorinated Biphenyls (PCB) MR No Yes — 0.0005 mg/L — Resolved Dec 31, 2010 Synthetic Organic Chemicals
Jan 1, 2008 Dec 31, 2010 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 Volatile Organic Chemicals
Jan 1, 2008 Dec 31, 2010 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2010 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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