POSEN
Illinois — Community Water System — PWSID: IL0312520
System Information
| PWSID | IL0312520 |
| System Name | POSEN |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1981 |
| Last Reported | Dec 4, 2025 |
Location & Contact
| State | Illinois |
| City | POSEN |
| ZIP Code | 60469 |
| Address | 2440 West Walter Zimny Drive |
| Organization | MARROQUIN, JULIO |
| Phone | 708-293-2620 |
Population & Service
| Population Served | 5,331 |
| Service Connections | 1,754 |
Drinking Water Violations (57)
This water system has 57 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 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Resolved | Jul 2, 2025 | Lead and Copper Rule Revisions |
| Jul 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Resolved | Jul 2, 2025 | Lead and Copper Rule Revisions |
| Jul 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Resolved | Jul 2, 2025 | Lead and Copper Rule Revisions |
| Jul 2, 2025 | — | LEAD AND COPPER RULE REVISIONS | RPT | No | No | — | — | — | Resolved | Jul 2, 2025 | Lead and Copper Rule Revisions |
| Jul 1, 2025 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Unaddressed | — | Consumer Confidence Rule |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 2, 2021 | Lead and Copper Rule |
| Dec 30, 2020 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Feb 2, 2021 | Lead and Copper Rule |
| Jul 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 10, 2017 | Consumer Confidence Rule |
| Jul 1, 2017 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 10, 2017 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 8, 2014 | Consumer Confidence Rule |
| Jul 1, 2014 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Sep 8, 2014 | Consumer Confidence Rule |
| Jan 1, 2014 | Aug 31, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2014 | Aug 31, 2014 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Aug 31, 2014 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jun 1, 2013 | Jun 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | Total Coliform Rule |
| Jun 1, 2013 | Jun 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | Total Coliform Rule |
| Jun 1, 2013 | Jun 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | Total Coliform Rule |
| Jun 1, 2013 | Jun 30, 2013 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Resolved | Jun 30, 2013 | Total Coliform Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 2, 2012 | Consumer Confidence Rule |
| Jul 1, 2012 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 2, 2012 | Consumer Confidence Rule |
| Jul 1, 2007 | Dec 31, 2007 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2007 | Lead and Copper Rule |
| Jul 1, 2007 | Dec 31, 2007 | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Dec 31, 2007 | Lead and Copper Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2005 | Consumer Confidence Rule |
| Jul 1, 2004 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jun 30, 2005 | Consumer Confidence Rule |
| Oct 1, 2002 | Oct 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2002 | Total Coliform Rule |
| Oct 1, 2002 | Oct 31, 2002 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2002 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 2001 | Total Coliform Rule |
| Nov 1, 2001 | Nov 30, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Nov 30, 2001 | Total Coliform Rule |
| Oct 1, 2001 | Oct 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2001 | Total Coliform Rule |
| Oct 1, 2001 | Oct 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2001 | Total Coliform Rule |
| Mar 1, 2001 | Mar 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Mar 31, 2001 | Total Coliform Rule |
| Mar 1, 2001 | Mar 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Mar 31, 2001 | Total Coliform Rule |
| Feb 1, 2001 | Feb 28, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Feb 28, 2001 | Total Coliform Rule |
| Feb 1, 2001 | Feb 28, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Feb 28, 2001 | Total Coliform Rule |
| Oct 1, 2000 | Oct 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 2000 | Total Coliform Rule |
| Oct 1, 2000 | Oct 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 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, 2000 | Aug 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Aug 31, 2000 | Total Coliform Rule |
| Jul 1, 2000 | Jul 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2000 | Total Coliform Rule |
| Jul 1, 2000 | Jul 31, 2000 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jul 31, 2000 | Total Coliform Rule |
| Oct 1, 1999 | Oct 31, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1999 | Total Coliform Rule |
| Oct 1, 1999 | Oct 31, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Oct 31, 1999 | Total Coliform Rule |
| Apr 1, 1999 | Apr 30, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1999 | Total Coliform Rule |
| Apr 1, 1999 | Apr 30, 1999 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Apr 30, 1999 | Total Coliform Rule |
| Jun 1, 1998 | Jun 30, 1998 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Archived | Jun 30, 1998 | Total Coliform 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.