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JEFFERSON

South Dakota — Community Water System — PWSID: SD4600060

System Information

PWSIDSD4600060
System NameJEFFERSON
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
CityJEFFERSON
ZIP Code57038
AddressPO BOX 276
OrganizationJEFFERSON
Phone6059665838

Population & Service

Population Served475
Service Connections235

Drinking Water Violations (79)

This water system has 79 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
Feb 1, 2014 — TT Yes No — — — Resolved Apr 14, 2016 —
Feb 1, 2014 — TT Yes No — — — Resolved Apr 14, 2016 —
Sep 1, 2010 Sep 30, 2010 MCL Yes No — 5% of samples — Resolved Sep 30, 2010 —
Sep 1, 2010 Sep 30, 2010 MCL Yes No — 5% of samples — Resolved Sep 30, 2010 —
Sep 1, 2010 Sep 30, 2010 MCL Yes No — 5% of samples — Resolved Sep 30, 2010 —
Dec 2, 2004 — TT Yes No — — — Resolved May 19, 2005 —
Dec 2, 2004 — TT Yes No — — — Resolved May 19, 2005 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Resolved May 31, 2000 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Resolved May 31, 2000 —
May 1, 2000 May 31, 2000 MCL Yes No — 5% of samples — Resolved May 31, 2000 —
Oct 1, 1994 Oct 31, 1994 MR No Yes — 5% of samples — Archived Oct 31, 1994 —
Oct 1, 1994 Oct 31, 1994 MR No Yes — 5% of samples — Archived Oct 31, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.07 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 10 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 10 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.2 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.002 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.002 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.007 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.007 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.07 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.07 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.2 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.7 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.075 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.075 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.6 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.6 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.1 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.7 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —
Jul 1, 1994 Sep 30, 1994 MR No Yes — 0.005 mg/L — Resolved Sep 30, 1994 —

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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