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WOONSOCKET

South Dakota — Community Water System — PWSID: SD4600376

System Information

PWSIDSD4600376
System NameWOONSOCKET
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedDec 9, 2025

Location & Contact

StateSouth Dakota
CityWOONSOCKET
ZIP Code57385
AddressPO BOX 456
OrganizationWOONSOCKET
Phone6057964275

Population & Service

Population Served618
Service Connections330

Drinking Water Violations (118)

This water system has 118 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
Aug 10, 2024 — E. COLI MR No Yes — — — Unaddressed — Ground Water Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No Yes — 4.0 mg/L — Resolved Jun 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2014 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 12, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2014 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Mar 12, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2013 Total Coliform Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2013 Total Coliform Rule
Aug 1, 2013 Aug 31, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2013 Total Coliform Rule
Oct 4, 2011 Jul 19, 2012 Lead and Copper Rule TT Yes No — TT — Resolved Jul 19, 2012 Lead and Copper Rule
Oct 4, 2011 Jul 19, 2012 Lead and Copper Rule TT Yes No — TT — Resolved Jul 19, 2012 Lead and Copper Rule
Apr 26, 2010 Jun 24, 2010 Lead and Copper Rule TT Yes No — TT — Resolved Jun 24, 2010 Lead and Copper Rule
Apr 26, 2010 Jun 24, 2010 Lead and Copper Rule TT Yes No — TT — Resolved Jun 24, 2010 Lead and Copper Rule
Apr 1, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 31, 2016 Lead and Copper Rule
Apr 1, 2010 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 31, 2016 Lead and Copper Rule
Feb 1, 2010 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Feb 23, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Feb 1, 2010 — Stage 1 Disinfectants and Disinfection Byproducts Rule TT Yes No — — — Resolved Feb 23, 2010 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Dec 31, 2009 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2009 Volatile Organic Chemicals
Jan 1, 2009 Dec 31, 2009 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule

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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