MACKINAW

Illinois — Community Water System — PWSID: IL1790350

System Information

PWSIDIL1790350
System NameMACKINAW
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1981
Last ReportedDec 4, 2025

Location & Contact

StateIllinois
CityMACKINAW
ZIP Code61755
Address14684 KILLION ROAD
OrganizationSCHOPP, MICHAEL E.
Phone309-392-2442

Population & Service

Population Served3,399
Service Connections1,345

Drinking Water Violations (19)

This water system has 19 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
Jul 1, 2005 Jul 31, 2005 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2005 Total Coliform Rule
Jul 1, 2005 Jul 31, 2005 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2005 Total Coliform Rule
Jul 1, 2005 Jul 31, 2005 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2005 Total Coliform Rule
Jul 1, 2005 Jul 31, 2005 Coliform (TCR) MR No No 5% of samples Resolved Jul 31, 2005 Total Coliform Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes 4.0 mg/L Resolved Aug 15, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes 4.0 mg/L Resolved Aug 15, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes 4.0 mg/L Resolved Aug 15, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2005 Sep 30, 2005 Chlorine MR No Yes 4.0 mg/L Resolved Aug 15, 2005 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2000 Aug 31, 2000 Coliform (TCR) MR No No 5% of samples Archived Aug 31, 2000 Total Coliform Rule
Aug 1, 2000 Aug 31, 2000 Coliform (TCR) MR No No 5% of samples Archived Aug 31, 2000 Total Coliform Rule
Aug 1, 1999 Aug 31, 1999 Coliform (TCR) MR No No 5% of samples Archived Aug 31, 1999 Total Coliform Rule
Aug 1, 1999 Aug 31, 1999 Coliform (TCR) MR No No 5% of samples Archived Aug 31, 1999 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MCL Yes No 5% of samples Archived Oct 31, 1993 Total Coliform Rule
Jun 30, 1977 Jun 29, 1981 Gross Alpha, Excl. Radon and U MR No No 15 pCi/L Archived Jun 29, 1981 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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