LA SALLE
Illinois - Community Water System - PWSID: IL0990300
System Information
| PWSID | IL0990300 |
| System Name | LA SALLE |
| 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 | Feb 26, 2026 |
Location & Contact
| State | Illinois |
| City | LA SALLE |
| ZIP Code | 61301 |
| Address | CITY OF LA SALLE |
| Organization | GROVE, JEFFREY |
| Phone | 815-223-3755 |
Population & Service
| Population Served | 9,700 |
| Service Connections | 3,967 |
Drinking Water Violations (220)
This water system has 220 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 1, 2025 | Dec 31, 2025 | MR | No | Yes | - | 0.060 mg/L | - | Archived | Dec 31, 2025 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Jun 1, 2024 | Jun 30, 2024 | MON | No | No | - | - | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | No | - | 4.0 mg/L | - | Resolved | Jun 30, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 29, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 29, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 29, 2024 | - | |
| Oct 1, 2023 | - | MR | No | No | - | TT | - | Resolved | Feb 29, 2024 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Jul 1, 2022 | Sep 30, 2022 | MCL | Yes | No | .087 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Apr 1, 2022 | Jun 30, 2022 | MCL | Yes | No | .095 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Jan 1, 2022 | Mar 31, 2022 | MCL | Yes | No | .086 MG/L | 0.080 mg/L | .08 | Resolved | Mar 31, 2022 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Oct 1, 2017 | Dec 31, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Dec 31, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Jul 1, 2017 | Sep 30, 2017 | MCL | Yes | No | .101 MG/L | 0.080 mg/L | .08 | Resolved | Sep 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2017 | - | |
| Apr 1, 2017 | Jun 30, 2017 | MCL | Yes | No | .088 MG/L | 0.080 mg/L | .08 | Resolved | Jun 30, 2017 | - |
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.