GENOA

Illinois — Community Water System — PWSID: IL0370150

System Information

PWSIDIL0370150
System NameGENOA
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
CityGENOA
ZIP Code60135
Address333 E First St
OrganizationSMITH, LUCAS
Phone815-784-7131

Population & Service

Population Served5,298
Service Connections2,060

Drinking Water Violations (60)

This water system has 60 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, 2025 Sep 30, 2025 Nitrite MR No Yes 1 mg/L Archived Sep 30, 2025 Nitrate Rule
Oct 1, 1995 Dec 31, 1995 Barium MR No Yes 2 mg/L Resolved Dec 31, 1995 Inorganic Chemicals
Oct 1, 1995 Dec 31, 1995 Barium MR No Yes 2 mg/L Resolved Dec 31, 1995 Inorganic Chemicals
Oct 1, 1995 Dec 31, 1995 Barium MR No Yes 2 mg/L Resolved Dec 31, 1995 Inorganic Chemicals
May 1, 1994 Jul 31, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
May 1, 1994 Jul 31, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Jul 31, 1994 Radionuclides and Revised Rad Rule
Feb 1, 1994 Apr 30, 1994 Combined Radium (-226 and -228) MR No Yes 5 pCi/L Resolved Apr 30, 1994 Radionuclides and Revised Rad Rule
Feb 1, 1994 Apr 30, 1994 Gross Alpha, Excl. Radon and U MR No Yes 15 pCi/L Resolved Apr 30, 1994 Radionuclides and Revised Rad Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No 5% of samples Resolved Nov 30, 1993 Total Coliform Rule
Dec 7, 1990 Dec 6, 1993 Barium MCL Yes No 1800 2 mg/L Resolved Apr 18, 1991 Inorganic Chemicals
Dec 7, 1990 Dec 6, 1993 Barium MCL Yes No 1800 2 mg/L Resolved Apr 18, 1991 Inorganic Chemicals
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1993 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Jun 26, 1992 Radionuclides and Revised Rad Rule
Dec 8, 1987 Dec 7, 1990 Barium MCL Yes No 1529 2 mg/L Resolved Nov 18, 1988 Inorganic Chemicals
Dec 8, 1987 Dec 7, 1990 Barium MCL Yes No 1529 2 mg/L Resolved Nov 18, 1988 Inorganic Chemicals
Dec 8, 1987 Dec 7, 1990 Barium MCL Yes No 1529 2 mg/L Resolved Nov 18, 1988 Inorganic Chemicals
Dec 8, 1987 Dec 7, 1990 Barium MCL Yes No 1529 2 mg/L Resolved Nov 18, 1988 Inorganic Chemicals
Dec 8, 1987 Dec 7, 1990 Barium MCL Yes No 1529 2 mg/L Resolved Nov 18, 1988 Inorganic Chemicals
Oct 4, 1985 Oct 3, 1989 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Oct 3, 1989 Radionuclides and Revised Rad Rule
Oct 4, 1985 Oct 3, 1989 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Oct 3, 1989 Radionuclides and Revised Rad Rule
Oct 4, 1985 Oct 3, 1989 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Oct 3, 1989 Radionuclides and Revised Rad Rule
Oct 4, 1985 Oct 3, 1989 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Oct 3, 1989 Radionuclides and Revised Rad Rule
Oct 4, 1985 Oct 3, 1989 Combined Radium (-226 and -228) MCL Yes No 6.9 5 pCi/L Resolved Oct 3, 1989 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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