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CARO, CITY OF

Michigan — Community Water System — PWSID: MI0001130

System Information

PWSIDMI0001130
System NameCARO, CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 3, 1981
Last ReportedDec 18, 2025

Location & Contact

StateMichigan
CityCARO
ZIP Code48723
Address317 S STATE ST
OrganizationCZASAK, SCOTT
Phone989-673-7671

Population & Service

Population Served5,029
Service Connections1,800

Drinking Water Violations (36)

This water system has 36 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, 2024 Nov 30, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Nov 30, 2024 Arsenic Rule
Nov 1, 2024 Nov 30, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Nov 30, 2024 Arsenic Rule
Oct 1, 2024 Oct 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Oct 31, 2024 Arsenic Rule
Oct 1, 2024 Oct 31, 2024 Arsenic MR No Yes — 0.010 mg/L — Resolved Oct 31, 2024 Arsenic Rule
Jul 11, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 26, 2021 Revised Total Coliform Rule
Jul 11, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 26, 2021 Revised Total Coliform Rule
Jul 11, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 26, 2021 Revised Total Coliform Rule
Jul 11, 2021 — Revised Total Coliform Rule RPT No No — — — Resolved Jul 26, 2021 Revised Total Coliform Rule
Nov 6, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 16, 2018 Revised Total Coliform Rule
Nov 6, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 16, 2018 Revised Total Coliform Rule
Nov 6, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 16, 2018 Revised Total Coliform Rule
Nov 6, 2018 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 16, 2018 Revised Total Coliform Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2018 Dec 31, 2018 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2018 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2006 Arsenic Rule
Apr 1, 2006 Jun 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2006 Arsenic Rule
Apr 1, 2006 Jun 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2006 Arsenic Rule
Apr 1, 2006 Jun 30, 2006 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Jan 23, 2006 Aug 22, 2006 Arsenic MCL Yes No .018 0.010 mg/L — Resolved Aug 22, 2006 Arsenic Rule
Apr 1, 2005 Jun 30, 2005 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2005 Arsenic Rule
Apr 1, 2005 Jun 30, 2005 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2005 Arsenic Rule
Apr 1, 2005 Jun 30, 2005 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2005 Arsenic Rule
Apr 1, 2005 Jun 30, 2005 Arsenic MR No Yes — 0.010 mg/L — Resolved Jun 30, 2005 Arsenic Rule
— — — No No — — — — — —

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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