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LANCASTER WATERWORKS

Wisconsin — Community Water System — PWSID: WI1220107

System Information

PWSIDWI1220107
System NameLANCASTER 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
CityLANCASTER
ZIP Code53813-1762
Address206 S MADISON ST
OrganizationLANCASTER CITY CLERK - DAVID KURIHARA
Phone—

Population & Service

Population Served3,868
Service Connections1,432

Drinking Water Violations (22)

This water system has 22 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
Mar 1, 2022 Mar 31, 2022 Revised Total Coliform Rule MON No No — — — Resolved Mar 31, 2022 Revised Total Coliform Rule
Mar 1, 2022 Mar 31, 2022 Revised Total Coliform Rule MON No No — — — Resolved Mar 31, 2022 Revised Total Coliform Rule
Mar 1, 2022 Mar 31, 2022 Revised Total Coliform Rule MON No No — — — Resolved Mar 31, 2022 Revised Total Coliform Rule
Mar 1, 2022 Mar 31, 2022 Revised Total Coliform Rule MON No No — — — Resolved Mar 31, 2022 Revised Total Coliform Rule
Jun 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2018 Lead and Copper Rule
Jun 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2018 Lead and Copper Rule
Jun 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2018 Lead and Copper Rule
Jun 1, 2017 — Lead and Copper Rule MR No No — TT — Resolved Sep 11, 2018 Lead and Copper Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Dec 31, 2015 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2013 Sep 30, 2013 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 25, 2013 Total Coliform Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Aug 5, 2013 Consumer Confidence Rule
May 22, 2012 — Public Notice Other No No — — — Resolved Oct 3, 2012 Public Notice Rule and Revised PN Rule
Apr 1, 2012 Jun 30, 2012 Combined Radium (-226 and -228) MCL Yes No 6.05 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2012 Radionuclides and Revised Rad Rule
Apr 1, 2012 Jun 30, 2012 Combined Radium (-226 and -228) MCL Yes No 6.05 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2012 Radionuclides and Revised Rad Rule
Apr 1, 2012 Jun 30, 2012 Combined Radium (-226 and -228) MCL Yes No 6.05 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2012 Radionuclides and Revised Rad Rule
Apr 1, 2012 Jun 30, 2012 Combined Radium (-226 and -228) MCL Yes No 6.05 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2012 Radionuclides and Revised Rad 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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