GREGORY

South Dakota - Community Water System - PWSID: SD4600145

System Information

PWSIDSD4600145
System NameGREGORY
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedMar 2, 2026

Location & Contact

StateSouth Dakota
CityGREGORY
ZIP Code57533
AddressPO BOX 436
OrganizationGREGORY
Phone6058358270

Population & Service

Population Served1,221
Service Connections741

Drinking Water Violations (84)

This water system has 84 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 3, 2019 - TT Yes No - - - Resolved Sep 2, 2020 -
Jan 3, 2019 - TT Yes No - - - Resolved Sep 2, 2020 -
Oct 1, 2005 - MR No No - TT - Resolved Jun 21, 2006 -
Oct 1, 2005 - MR No No - TT - Resolved Jun 21, 2006 -
Oct 1, 2005 - MR No No - TT - Resolved Jun 21, 2006 -
Oct 1, 2005 - MR No No - TT - Resolved Jun 21, 2006 -
Jan 1, 2004 - TT Yes No - - - Resolved Apr 7, 2005 -
Jan 1, 2004 - TT Yes No - - - Resolved Apr 7, 2005 -
Feb 13, 2000 Mar 12, 2000 Other No No - TT - Archived Mar 12, 2000 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0005 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.004 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.004 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.003 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.003 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.04 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.04 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.006 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0005 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.4 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.4 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Aug 14, 2000 MR No No - TT - Resolved Aug 14, 2000 -
Jan 1, 1999 Aug 14, 2000 MR No No - TT - Resolved Aug 14, 2000 -
Jan 1, 1999 Aug 14, 2000 MR No No - TT - Resolved Aug 14, 2000 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.001 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.001 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.006 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.05 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.003 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - - - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0004 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - - - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0004 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.003 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.05 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1999 Dec 31, 1999 MR No Yes - 0.0002 mg/L - Resolved Dec 31, 1999 -
Jan 1, 1995 Dec 31, 1995 MR No Yes - 10 mg/L - Resolved Dec 31, 1995 -
Jan 1, 1995 Dec 31, 1995 MR No Yes - 10 mg/L - Resolved Dec 31, 1995 -
Jan 1, 1995 Dec 31, 1995 MR No Yes - 10 mg/L - Resolved Dec 31, 1995 -
Jul 1, 1991 Jul 31, 1991 MR No Yes - 5% of samples - Archived Jul 31, 1991 -
Jul 1, 1991 Jul 31, 1991 MR No Yes - 5% of samples - Archived Jul 31, 1991 -
Nov 7, 1989 Nov 6, 1992 MR No Yes - 0.010 mg/L - Resolved Nov 6, 1992 -

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.

Browse All Water Systems Water Systems in South Dakota