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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

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SENECA SANITARY DIST NO 1

Wisconsin — Community Water System — PWSID: WI6120251

System Information

PWSIDWI6120251
System NameSENECA SANITARY DIST NO 1
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedJan 28, 1981
Last ReportedMar 2, 2026

Location & Contact

StateWisconsin
CitySENECA
ZIP Code54654
AddressLISA SCHWERN, CLERK
OrganizationSENECA SANITARY DIST NO 1
Phone—

Population & Service

Population Served250
Service Connections112

Drinking Water Violations (72)

This water system has 72 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, 2024 — MR No No — TT — Resolved Jan 21, 2024 —
Jan 1, 2024 — MR No No — TT — Resolved Jan 21, 2024 —
Jan 1, 2013 Jan 31, 2013 MR No No — 5% of samples — Resolved Jan 31, 2013 —
Jan 1, 2013 Mar 31, 2013 MR No Yes — 4.0 mg/L — Resolved Feb 19, 2013 —
Jan 1, 2013 Mar 31, 2013 MR No Yes — 4.0 mg/L — Resolved Feb 19, 2013 —
Jan 1, 2013 Mar 31, 2013 MR No Yes — 4.0 mg/L — Resolved Feb 19, 2013 —
Jan 1, 2013 Mar 31, 2013 MR No Yes — 4.0 mg/L — Resolved Feb 19, 2013 —
Jan 1, 2013 Jan 31, 2013 MR No No — 5% of samples — Resolved Jan 31, 2013 —
Jan 1, 2013 Jan 31, 2013 MR No No — 5% of samples — Resolved Jan 31, 2013 —
Jan 1, 2013 Jan 31, 2013 MR No No — 5% of samples — Resolved Jan 31, 2013 —
Oct 1, 2009 Dec 31, 2009 MR No Yes — 4.0 mg/L — Resolved Nov 16, 2009 —
Oct 1, 2009 Oct 31, 2009 MR No No — 5% of samples — Resolved Oct 31, 2009 —
Oct 1, 2009 Dec 31, 2009 MR No Yes — 4.0 mg/L — Resolved Nov 16, 2009 —
Oct 1, 2009 Dec 31, 2009 MR No Yes — 4.0 mg/L — Resolved Nov 16, 2009 —
Oct 1, 2009 Dec 31, 2009 MR No Yes — 4.0 mg/L — Resolved Nov 16, 2009 —
Oct 1, 2009 Oct 31, 2009 MR No No — 5% of samples — Resolved Oct 31, 2009 —
Oct 1, 2009 Oct 31, 2009 MR No No — 5% of samples — Resolved Oct 31, 2009 —
Oct 1, 2009 Oct 31, 2009 MR No No — 5% of samples — Resolved Oct 31, 2009 —
Dec 1, 2004 Dec 31, 2004 MCL Yes No — 5% of samples — Resolved Dec 23, 2004 —
Dec 1, 2004 Dec 31, 2004 MCL Yes No — 5% of samples — Resolved Dec 23, 2004 —
Dec 1, 2004 Dec 31, 2004 MCL Yes No — 5% of samples — Resolved Dec 23, 2004 —
Dec 1, 2004 Dec 31, 2004 MCL Yes No — 5% of samples — Resolved Dec 23, 2004 —
Dec 1, 2004 Dec 31, 2004 MCL Yes No — 5% of samples — Resolved Dec 23, 2004 —
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 —
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 —
Jun 1, 1998 Jun 30, 1998 MCL Yes No — 5% of samples — Resolved Jun 30, 1998 —
Jun 1, 1998 Jun 30, 1998 MCL Yes No — 5% of samples — Resolved Jun 30, 1998 —
Jun 1, 1998 Jun 30, 1998 MCL Yes No — 5% of samples — Resolved Jun 30, 1998 —
Jun 1, 1998 Jun 30, 1998 MCL Yes No — 5% of samples — Resolved Jun 30, 1998 —
May 1, 1998 May 31, 1998 MCL Yes No — 5% of samples — Resolved May 31, 1998 —
May 1, 1998 May 31, 1998 MCL Yes No — 5% of samples — Resolved May 31, 1998 —
May 1, 1998 May 31, 1998 MCL Yes No — 5% of samples — Resolved May 31, 1998 —
May 1, 1998 May 31, 1998 MCL Yes No — 5% of samples — Resolved May 31, 1998 —
Feb 1, 1994 Feb 28, 1994 MR No No — 5% of samples — Resolved Feb 28, 1994 —
Feb 1, 1994 Feb 28, 1994 MR No No — 5% of samples — Resolved Feb 28, 1994 —
Feb 1, 1994 Feb 28, 1994 MR No No — 5% of samples — Resolved Feb 28, 1994 —
Feb 1, 1994 Feb 28, 1994 MR No No — 5% of samples — Resolved Feb 28, 1994 —
Jul 1, 1993 Jan 19, 1994 MR No No — TT — Resolved Jan 19, 1994 —
Jul 1, 1993 — MR No No — TT — Resolved Dec 31, 1993 —
Jul 1, 1993 — MR No No — TT — Resolved Dec 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.005 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.003 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.003 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 10 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.005 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.6 mg/L — Resolved Mar 31, 1993 —
Jan 1, 1993 Mar 31, 1993 MR No Yes — 0.007 mg/L — Resolved Mar 31, 1993 —

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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