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DELAVAN WATERWORKS

Wisconsin — Community Water System — PWSID: WI2650113

System Information

PWSIDWI2650113
System NameDELAVAN 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
CityDELAVAN
ZIP Code53115-1794
Address123 S 2ND ST
OrganizationDELAVAN CITY CLERK
Phone—

Population & Service

Population Served8,451
Service Connections3,130

Drinking Water Violations (55)

This water system has 55 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, 2017 Dec 31, 2017 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2017 Dec 31, 2017 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2017 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2003 Jan 31, 2003 Mercury MR No Yes — 0.002 mg/L — Resolved Jan 31, 2003 Inorganic Chemicals
Dec 1, 2002 Dec 31, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Dec 31, 2002 Inorganic Chemicals
Nov 1, 2002 Nov 30, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Nov 30, 2002 Inorganic Chemicals
Oct 1, 2002 Oct 31, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Oct 31, 2002 Inorganic Chemicals
Sep 1, 2002 Sep 30, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Sep 30, 2002 Inorganic Chemicals
Aug 1, 2002 Aug 31, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Aug 31, 2002 Inorganic Chemicals
Jul 1, 2002 Jul 31, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Jul 31, 2002 Inorganic Chemicals
May 22, 2002 Jun 30, 2002 Mercury MR No Yes — 0.002 mg/L — Resolved Jun 30, 2002 Inorganic Chemicals
Oct 1, 2000 — Consumer Confidence Rule Other No No — — — Resolved Jun 26, 2001 Consumer Confidence Rule
Oct 1, 2000 — Consumer Confidence Rule Other No No — — — Resolved Jun 26, 2001 Consumer Confidence Rule
Jul 1, 2000 — Consumer Confidence Rule Other No No — — — Resolved Jun 26, 2001 Consumer Confidence Rule
Jul 1, 2000 — Consumer Confidence Rule Other No No — — — Resolved Jun 26, 2001 Consumer Confidence Rule
Apr 21, 1999 May 31, 1999 Fluoride MR No Yes — 4.0 mg/L — Resolved May 31, 1999 Inorganic Chemicals
Apr 21, 1999 May 31, 1999 Fluoride MR No Yes — 4.0 mg/L — Resolved May 31, 1999 Inorganic Chemicals
Apr 21, 1999 May 31, 1999 Fluoride MR No Yes — 4.0 mg/L — Resolved May 31, 1999 Inorganic Chemicals
Oct 1, 1995 Dec 31, 1995 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals
Oct 1, 1995 Dec 31, 1995 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 1995 Volatile Organic Chemicals

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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