JOHNSBURG NO.2
PWS ID: IL1115080 · JOHNSBURG, Illinois 60051
Population Served
1,124
Total Violations
157
Health-Based Violations
19
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 349
- County
- McHenry
- School/Daycare
- No
- MCL Violations
- 12
- Monitoring Violations
- 97
- Treatment Tech Violations
- 7
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Coliform (TCR) | MR | 12 | 2009 |
| Combined Radium (-226 and -228) | MCL | 12 | 2007 |
| Nitrate | MR | 8 | 2007 |
| Lead and Copper Rule | MR | 8 | 2019 |
| Public Notice | Other | 8 | 2018 |
| TTHM | MR | 8 | 2023 |
| Total Haloacetic Acids (HAA5) | MR | 8 | 2023 |
| Consumer Confidence Rule | Other | 8 | 2024 |
| Lead and Copper Rule | TT | 7 | 1996 |
| Combined Radium (-226 and -228) | MR | 6 | 2007 |
| Chlorine | MR | 6 | 2009 |
| Toluene | MR | 6 | 2008 |
| p-Dichlorobenzene | MR | 4 | 1991 |
| 1,1-Dichloroethylene | MR | 4 | 1991 |
| 1,2-Dichloroethane | MR | 4 | 1991 |
| 1,1,1-Trichloroethane | MR | 4 | 1991 |
| Trichloroethylene | MR | 4 | 1991 |
| Benzene | MR | 4 | 1991 |
| Carbon tetrachloride | MR | 4 | 1991 |
| Di(2-ethylhexyl) phthalate | MR | 4 | 2007 |
| Chlordane | MR | 2 | 2014 |
| Gross Alpha, Excl. Radon and U | MR | 1 | 1977 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.