CITGO REFINERY NORTH WELL
PWS ID: IL3149559 · LEMONT, Illinois 60439
Population Served
200
Total Violations
242
Health-Based Violations
0
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- Will
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 242
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 8 | 2024 |
| Methoxychlor | MR | 5 | 2017 |
| Diquat | MR | 5 | 2017 |
| Endothall | MR | 5 | 2017 |
| Simazine | MR | 5 | 2017 |
| Atrazine | MR | 5 | 2017 |
| LASSO | MR | 5 | 2017 |
| 2,4-D | MR | 5 | 2017 |
| Pentachlorophenol | MR | 5 | 2017 |
| ETHYLENE DIBROMIDE | MR | 5 | 2017 |
| Chlordane | MR | 5 | 2017 |
| Total Polychlorinated Biphenyls (PCB) | MR | 5 | 2017 |
| 2,4,5-TP | MR | 5 | 2017 |
| BHC-GAMMA | MR | 5 | 2017 |
| Heptachlor | MR | 5 | 2017 |
| OXAMYL | MR | 5 | 2017 |
| Glyphosate | MR | 5 | 2017 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 5 | 2017 |
| Toxaphene | MR | 5 | 2017 |
| Carbofuran | MR | 5 | 2017 |
| Picloram | MR | 5 | 2017 |
| Heptachlor epoxide | MR | 5 | 2017 |
| 1,2,4-Trichlorobenzene | MR | 4 | 2011 |
| Xylenes, Total | MR | 4 | 2011 |
| o-Dichlorobenzene | MR | 4 | 2011 |
| 1,1-Dichloroethylene | MR | 4 | 2011 |
| trans-1,2-Dichloroethylene | MR | 4 | 2011 |
| 1,2-Dichloroethane | MR | 4 | 2011 |
| 1,1,1-Trichloroethane | MR | 4 | 2011 |
| Carbon tetrachloride | MR | 4 | 2011 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.