ONSTED

Michigan — Community Water System — PWSID: MI0005020

System Information

PWSIDMI0005020
System NameONSTED
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 3, 1981
Last ReportedMar 30, 2026

Location & Contact

StateMichigan
CityONSTED
ZIP Code49265
Address108 S MAIN ST
OrganizationSCHAFER, ROBERT
Phone517-270-8344

Population & Service

Population Served907
Service Connections365

Drinking Water Violations (21)

This water system has 21 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
Dec 11, 2025 RPT No No Unaddressed
Jul 2, 2025 RPT No No Unaddressed
Jul 2, 2025 RPT No No Unaddressed
Oct 1, 2024 MR No No TT Unaddressed
Oct 1, 2024 MR No No TT Unaddressed
Apr 1, 2024 Jun 30, 2024 MR No Yes 0.010 mg/L Resolved Jun 30, 2024
Apr 1, 2024 Jun 30, 2024 MR No Yes 0.010 mg/L Resolved Jun 30, 2024
Apr 1, 2024 Jun 30, 2024 MR No Yes 0.010 mg/L Resolved Jun 30, 2024
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.080 mg/L Resolved Jul 31, 2020
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.060 mg/L Resolved Jul 31, 2020
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.060 mg/L Resolved Jul 31, 2020
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.060 mg/L Resolved Jul 31, 2020
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.080 mg/L Resolved Jul 31, 2020
Aug 1, 2019 Jul 31, 2020 MR No Yes 0.080 mg/L Resolved Jul 31, 2020
Nov 1, 2011 Nov 30, 2011 MR No No 5% of samples Resolved Nov 30, 2011
Nov 1, 2011 Nov 30, 2011 MR No No 5% of samples Resolved Nov 30, 2011
Nov 1, 2011 Nov 30, 2011 MR No No 5% of samples Resolved Nov 30, 2011
Nov 1, 2011 Nov 30, 2011 MR No No 5% of samples Resolved Nov 30, 2011
Oct 1, 2009 Oct 31, 2009 MR No No 5% of samples Resolved Oct 31, 2009
Oct 1, 2009 Oct 31, 2009 MR No No 5% of samples Resolved Oct 31, 2009
Oct 1, 2009 Oct 31, 2009 MR No No 5% of samples Resolved Oct 31, 2009

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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