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DEERFIELD WATERWORKS

Wisconsin — Community Water System — PWSID: WI1130223

System Information

PWSIDWI1130223
System NameDEERFIELD WATERWORKS
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedJan 28, 1981
Last ReportedDec 17, 2025

Location & Contact

StateWisconsin
CityDEERFIELD
ZIP Code53531
Address23 W NELSON ST
OrganizationDOWNEY, RICHARD - DEERFIELD VIL ADMINISTRATOR
Phone—

Population & Service

Population Served2,510
Service Connections929

Drinking Water Violations (28)

This water system has 28 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
Oct 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Jul 28, 2015 Lead and Copper Rule
Oct 1, 2012 — Lead and Copper Rule MR No No — TT — Resolved Jul 28, 2015 Lead and Copper Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Oct 1, 2003 Oct 31, 2003 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2003 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Aug 1, 1994 Aug 31, 1994 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 29, 1994 Total Coliform Rule
Feb 1, 1994 Feb 28, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 1994 Total Coliform Rule
Feb 1, 1994 Feb 28, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 1994 Total Coliform Rule
Feb 1, 1994 Feb 28, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 1994 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Nov 30, 1992 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 26, 1991 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 26, 1991 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 26, 1991 Total Coliform Rule
Dec 1, 1991 Dec 31, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Dec 26, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MCL Yes No — 5% of samples — Archived Sep 30, 1991 Total Coliform 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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