RIVERDALE SCHOOL DISTRICT #100
Illinois - Non-Transient Non-Community - PWSID: IL3113985
System Information
| PWSID | IL3113985 |
| System Name | RIVERDALE SCHOOL DISTRICT #100 |
| System Type | Non-Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Mixed |
| EPA Region | 05 |
| Serves School | Yes |
| Wholesaler | No |
| First Reported | Dec 16, 1985 |
| Last Reported | Mar 12, 2026 |
Location & Contact
| State | Illinois |
| City | PORT BYRON |
| ZIP Code | 61275 |
| Address | 9624-256TH ST N |
| Organization | JACOBS, RON |
| Phone | 304-523-3184 |
Population & Service
| Population Served | 1,340 |
| Service Connections | 5 |
Drinking Water Violations (365)
This water system has 365 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | - | MR | No | No | - | TT | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Oct 1, 2025 | - | RPT | No | No | - | - | - | Unaddressed | - | - | |
| Sep 1, 2025 | Sep 30, 2025 | MON | No | Yes | - | - | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MON | No | Yes | - | - | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MON | No | Yes | - | - | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MON | No | Yes | - | - | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 23, 2025 | - | |
| Sep 1, 2025 | Sep 30, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Sep 23, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MON | No | Yes | - | - | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Aug 1, 2025 | Aug 31, 2025 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | Aug 31, 2025 | - | |
| Jun 7, 2025 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2025 | - | |
| Jun 7, 2025 | - | Other | No | No | - | - | - | Resolved | Aug 8, 2025 | - | |
| Jun 6, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Apr 5, 2025 | - | Other | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Apr 5, 2025 | - | Other | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Dec 21, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Dec 4, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Nov 1, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Oct 27, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jan 29, 2025 | - | |
| Oct 27, 2024 | - | TT | Yes | No | - | - | - | Resolved | Jan 29, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | RPT | No | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 17, 2024 | - | TT | Yes | No | - | - | - | Resolved | May 29, 2025 | - | |
| Oct 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | May 27, 2025 | - | |
| Oct 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | May 27, 2025 | - | |
| Oct 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | May 27, 2025 | - | |
| Oct 12, 2024 | - | MR | No | Yes | - | - | - | Resolved | May 27, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Aug 19, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Aug 19, 2025 | - | |
| Oct 1, 2024 | - | MR | No | No | - | TT | - | Resolved | Aug 19, 2025 | - | |
| May 23, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| May 22, 2024 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 22, 2024 | - | |
| Apr 1, 2024 | Apr 30, 2024 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2024 | - | |
| Apr 1, 2024 | Jun 30, 2024 | MR | No | Yes | - | 4.0 mg/L | - | Resolved | May 22, 2024 | - |
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.