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ELKHORN WATERWORKS

Wisconsin — Community Water System — PWSID: WI2650062

System Information

PWSIDWI2650062
System NameELKHORN 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
CityELKHORN
ZIP Code53121
AddressPO BOX 920
OrganizationPEREZ, REBECA - CITY CLERK
Phone—

Population & Service

Population Served10,317
Service Connections3,821

Drinking Water Violations (262)

This water system has 262 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
Nov 1, 2021 — Public Notice Other No No — — — Resolved Mar 21, 2022 Public Notice Rule and Revised PN Rule
Nov 1, 2021 — Public Notice Other No No — — — Resolved Mar 21, 2022 Public Notice Rule and Revised PN Rule
Oct 28, 2021 — E. COLI MR No No — — — Resolved Mar 18, 2022 Ground Water Rule
Oct 28, 2021 — E. COLI MR No No — — — Resolved Mar 18, 2022 Ground Water Rule
Oct 28, 2021 — E. COLI MR No No — — — Resolved Mar 18, 2022 Ground Water Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Jan 1, 2021 Mar 31, 2021 Combined Radium (-226 and -228) MCL Yes No 9.111 PCI/L 5 pCi/L 5.5 Resolved Mar 31, 2021 Radionuclides and Revised Rad Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Nov 1, 2020 Sep 21, 2022 Lead and Copper Rule TT Yes No — TT — Resolved Sep 21, 2022 Lead and Copper Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Combined Radium (-226 and -228) MCL Yes No 9.534 PCI/L 5 pCi/L 5.5 Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Jul 1, 2019 Sep 30, 2019 Combined Radium (-226 and -228) MCL Yes No 10.07 PCI/L 5 pCi/L 5.5 Resolved Sep 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Apr 1, 2019 Jun 30, 2019 Combined Radium (-226 and -228) MCL Yes No 9.8 PCI/L 5 pCi/L 5.5 Resolved Jun 30, 2019 Radionuclides and Revised Rad Rule
Nov 7, 2018 — Public Notice Other No No — — — Resolved May 3, 2019 Public Notice Rule and Revised PN Rule
Nov 7, 2018 — Public Notice Other No No — — — Resolved May 3, 2019 Public Notice Rule and Revised PN Rule
Nov 7, 2018 — Public Notice Other No No — — — Resolved May 3, 2019 Public Notice Rule and Revised PN Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic Rule
Oct 1, 2018 Dec 31, 2018 Arsenic MCL Yes No .0185 MG/L 0.010 mg/L .0105 Resolved Dec 31, 2018 Arsenic 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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