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Consumer Safety

Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

Infrastructure

Bridge Safety624,000 bridge inspections Aviation Safety30,000+ NTSB aviation events Dam Safety92,600 dam safety records Water Safety433,000+ public water systems Railroad Safety438,000+ rail crossings Pipeline Safety8,800+ pipeline incidents State DashboardsSafety grades for all 50 states ZIP ReportAny 5-digit ZIP across 9 datasets

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GRASSLAND COLONY

South Dakota - Community Water System - PWSID: SD4602028

System Information

PWSIDSD4602028
System NameGRASSLAND COLONY
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusInactive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedSep 19, 1990
Last ReportedMar 2, 2026

Location & Contact

StateSouth Dakota
CityWESTPORT
ZIP Code57481
Address11865 370TH AVENUE
OrganizationGRASSLAND COLONY
Phone6054393603

Population & Service

Population Served130
Service Connections30

Drinking Water Violations (400)

This water system has 400 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
Jun 13, 2015 - Other No No - - - Resolved Apr 1, 2016 -
Jun 13, 2015 - Other No No - - - Resolved Apr 1, 2016 -
Feb 1, 2010 - TT Yes No - - - Resolved Feb 16, 2010 -
Feb 1, 2010 - TT Yes No - - - Resolved Feb 16, 2010 -
Jul 1, 2003 Jul 31, 2003 MCL Yes No - 5% of samples - Resolved Jul 31, 2003 -
Jul 1, 2003 Jul 31, 2003 MCL Yes No - 5% of samples - Resolved Jul 31, 2003 -
Jul 1, 2003 Jul 31, 2003 MCL Yes No - 5% of samples - Resolved Jul 31, 2003 -
Mar 1, 2000 Mar 31, 2000 MR No Yes - 5% of samples - Resolved Mar 31, 2000 -
Mar 1, 2000 Mar 31, 2000 MR No Yes - 5% of samples - Resolved Mar 31, 2000 -
Mar 1, 2000 Mar 31, 2000 MR No Yes - 5% of samples - Resolved Mar 31, 2000 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Jul 1, 1999 Jul 31, 1999 MCL Yes No - 5% of samples - Resolved Jul 31, 1999 -
Aug 1, 1998 Aug 31, 1998 MR No Yes - 5% of samples - Archived Aug 31, 1998 -
Aug 1, 1998 Aug 31, 1998 MR No Yes - 5% of samples - Archived Aug 31, 1998 -
Feb 1, 1998 Feb 28, 1998 MR No Yes - 5% of samples - Archived Feb 28, 1998 -
Feb 1, 1998 Feb 28, 1998 MR No Yes - 5% of samples - Archived Feb 28, 1998 -
Sep 15, 1997 Oct 14, 1997 Other No No - TT - Archived Oct 14, 1997 -
Jan 1, 1997 Jul 24, 1997 MR No No - TT - Resolved Jul 24, 1997 -
Jan 1, 1997 Jul 24, 1997 MR No No - TT - Resolved Jul 24, 1997 -
Jan 1, 1997 Jul 24, 1997 MR No No - TT - Resolved Jul 24, 1997 -
Oct 14, 1996 Nov 13, 1996 Other No No - - - Archived Nov 13, 1996 -
Oct 1, 1996 Oct 31, 1996 MR No No - 5% of samples - Archived Oct 31, 1996 -
Oct 1, 1996 Oct 31, 1996 MR No No - 5% of samples - Archived Oct 31, 1996 -
Sep 1, 1996 Sep 30, 1996 MR No No - 5% of samples - Archived Sep 30, 1996 -
Sep 1, 1996 Sep 30, 1996 MR No Yes - 5% of samples - Archived Sep 30, 1996 -
Sep 1, 1996 Sep 30, 1996 MR No No - 5% of samples - Archived Sep 30, 1996 -
Sep 1, 1996 Sep 30, 1996 MR No Yes - 5% of samples - Archived Sep 30, 1996 -
Aug 1, 1996 Aug 31, 1996 MCL Yes No - 5% of samples - Resolved Aug 31, 1996 -
Aug 1, 1996 Aug 31, 1996 MCL Yes No - 5% of samples - Resolved Aug 31, 1996 -
Aug 1, 1996 Aug 31, 1996 MCL Yes No - 5% of samples - Resolved Aug 31, 1996 -
Aug 1, 1996 Aug 31, 1996 MCL Yes No - 5% of samples - Resolved Aug 31, 1996 -
Aug 1, 1996 Aug 31, 1996 MCL Yes No - 5% of samples - Resolved Aug 31, 1996 -
Jul 1, 1996 Jul 24, 1997 MR No No - TT - Resolved Jul 24, 1997 -
Jul 1, 1996 Jul 31, 1996 MR No Yes - 5% of samples - Archived Jul 31, 1996 -
Jul 1, 1996 Jul 24, 1997 MR No No - TT - Resolved Jul 24, 1997 -
Jul 1, 1996 Jul 31, 1996 MR No Yes - 5% of samples - Archived Jul 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.005 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.7 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.005 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.005 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.005 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.005 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.07 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.07 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.07 mg/L - Resolved Dec 31, 1996 -
Jan 1, 1996 Dec 31, 1996 MR No Yes - 0.7 mg/L - Resolved Dec 31, 1996 -

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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