GRAND RIDGE
PWS ID: IL0990200 · GRAND RIDGE, Illinois 61325
Population Served
515
Total Violations
355
Health-Based Violations
176
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 249
- County
- LaSalle
- School/Daycare
- No
- MCL Violations
- 176
- Monitoring Violations
- 153
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Arsenic | MCL | 170 | 2019 |
| Public Notice | Other | 10 | 2017 |
| Arsenic | MR | 8 | 2017 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2023 |
| TTHM | MR | 8 | 2023 |
| TTHM | MCL | 6 | 2017 |
| BHC-GAMMA | MR | 4 | 2012 |
| Endothall | MR | 4 | 2012 |
| OXAMYL | MR | 4 | 2012 |
| Simazine | MR | 4 | 2012 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2012 |
| Picloram | MR | 4 | 2012 |
| Dinoseb | MR | 4 | 2012 |
| Aldicarb sulfoxide | MR | 4 | 2012 |
| Carbofuran | MR | 4 | 2012 |
| Atrazine | MR | 4 | 2012 |
| HEXACHLOROBENZENE | MR | 4 | 2012 |
| Pentachlorophenol | MR | 4 | 2012 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2012 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 2012 |
| ETHYLENE DIBROMIDE | MR | 4 | 2012 |
| Chlordane | MR | 4 | 2012 |
| LEAD AND COPPER RULE REVISIONS | RPT | 4 | 2025 |
| Benzo(a)pyrene | MR | 4 | 2012 |
| Dalapon | MR | 4 | 2012 |
| Heptachlor | MR | 4 | 2012 |
| Aldicarb | MR | 4 | 2012 |
| Endrin | MR | 4 | 2012 |
| Toxaphene | MR | 4 | 2012 |
| Di(2-ethylhexyl) adipate | MR | 4 | 2012 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.