LANARK
Illinois — Community Water System — PWSID: IL0150100
System Information
| PWSID | IL0150100 |
| System Name | LANARK |
| System Type | Community Water System |
| Water Source | Ground Water |
| 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 | LANARK |
| ZIP Code | 61046 |
| Address | 111A SOUTH BROAD ST |
| Organization | ALVARADO, JASON |
| Phone | 815-493-6832 |
Population & Service
| Population Served | 1,504 |
| Service Connections | 691 |
Drinking Water Violations (23)
This water system has 23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2023 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Dec 4, 2023 | Revised Total Coliform Rule |
| Sep 1, 2023 | — | Revised Total Coliform Rule | RPT | No | No | — | — | — | Resolved | Dec 4, 2023 | Revised Total Coliform Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 27, 2023 | Consumer Confidence Rule |
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Dec 27, 2023 | Consumer Confidence Rule |
| Dec 30, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 31, 2022 | Lead and Copper Rule |
| Dec 30, 2021 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Jan 31, 2022 | Lead and Copper Rule |
| Jan 1, 2020 | Dec 31, 2022 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2022 | Radionuclides and Revised Rad Rule |
| Jan 1, 2020 | Dec 31, 2022 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2022 | Radionuclides and Revised Rad Rule |
| Jan 1, 2020 | Dec 31, 2022 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2022 | Radionuclides and Revised Rad Rule |
| Jan 1, 2020 | Dec 31, 2022 | Combined Radium (-226 and -228) | MR | No | Yes | — | 5 pCi/L | — | Resolved | Dec 31, 2022 | Radionuclides and Revised Rad Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 27, 2016 | Consumer Confidence Rule |
| Jul 1, 2016 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 27, 2016 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 1, 2013 | Consumer Confidence Rule |
| Jul 1, 2013 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Aug 1, 2013 | Consumer Confidence Rule |
| Jan 2, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 20, 2010 | Lead and Copper Rule |
| Jan 2, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 20, 2010 | Lead and Copper Rule |
| Jan 2, 2010 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | May 20, 2010 | Lead and Copper Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1994 | Total Coliform Rule |
| Sep 1, 1994 | Sep 30, 1994 | Coliform (TCR) | MCL | Yes | No | — | 5% of samples | — | Archived | Sep 30, 1994 | 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 |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | 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.