HILLCREST
PWS ID: IL1410250 · ROCHELLE, Illinois 61068
Population Served
1,224
Total Violations
225
Health-Based Violations
14
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 445
- County
- Ogle
- School/Daycare
- No
- MCL Violations
- 4
- Monitoring Violations
- 183
- Treatment Tech Violations
- 10
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Gross Alpha, Excl. Radon and U | MR | 16 | 1982 |
| Lead and Copper Rule | TT | 10 | 2008 |
| Lead and Copper Rule | MR | 8 | 2025 |
| Coliform (TCR) | MR | 6 | 1994 |
| Public Notice | Other | 4 | 2024 |
| Endrin | MR | 4 | 2020 |
| Methoxychlor | MR | 4 | 2020 |
| Toxaphene | MR | 4 | 2020 |
| Dalapon | MR | 4 | 2020 |
| Di(2-ethylhexyl) adipate | MR | 4 | 2020 |
| Picloram | MR | 4 | 2020 |
| Aldicarb sulfoxide | MR | 4 | 2020 |
| Carbofuran | MR | 4 | 2020 |
| Aldicarb | MR | 4 | 2020 |
| Atrazine | MR | 4 | 2020 |
| LASSO | MR | 4 | 2020 |
| Heptachlor | MR | 4 | 2020 |
| 2,4-D | MR | 4 | 2020 |
| 2,4,5-TP | MR | 4 | 2020 |
| HEXACHLOROBENZENE | MR | 4 | 2020 |
| Total Polychlorinated Biphenyls (PCB) | MR | 4 | 2020 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 4 | 2020 |
| ETHYLENE DIBROMIDE | MR | 4 | 2020 |
| Pentachlorophenol | MR | 4 | 2020 |
| Hexachlorocyclopentadiene | MR | 4 | 2020 |
| Aldicarb sulfone | MR | 4 | 2020 |
| Diquat | MR | 4 | 2020 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2020 |
| BHC-GAMMA | MR | 4 | 2020 |
| Dinoseb | MR | 4 | 2020 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.