MADISON COMMONS
PWS ID: CT0769133 · RIDGEFIELD, Connecticut 06877
Population Served
28
Total Violations
130
Health-Based Violations
11
Water Source
Groundwater
System Details
- System Type
- Non-Transient Non-Community
- Owner Type
- Private
- Connections
- 1
- County
- New Haven
- School/Daycare
- No
- MCL Violations
- 11
- Monitoring Violations
- 119
- Treatment Tech Violations
- 0
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 13 | 2023 |
| Coliform (TCR) | MCL | 11 | 2015 |
| Coliform (TCR) | MR | 7 | 2008 |
| Aldicarb | MR | 3 | 1999 |
| LASSO | MR | 3 | 1999 |
| Atrazine | MR | 3 | 1999 |
| Chlordane | MR | 3 | 1999 |
| 1,2-DIBROMO-3-CHLOROPROPANE | MR | 3 | 1999 |
| 2,4-D | MR | 3 | 1999 |
| Aldicarb sulfoxide | MR | 3 | 1999 |
| ETHYLENE DIBROMIDE | MR | 3 | 1999 |
| Heptachlor epoxide | MR | 3 | 1999 |
| Heptachlor | MR | 3 | 1999 |
| BHC-GAMMA | MR | 3 | 1999 |
| Pentachlorophenol | MR | 3 | 1999 |
| Total Polychlorinated Biphenyls (PCB) | MR | 3 | 1999 |
| 2,4,5-TP | MR | 3 | 1999 |
| Benzo(a)pyrene | MR | 3 | 1999 |
| Dalapon | MR | 3 | 1999 |
| Di(2-ethylhexyl) adipate | MR | 3 | 1999 |
| Di(2-ethylhexyl) phthalate | MR | 3 | 1999 |
| Endothall | MR | 3 | 1999 |
| Glyphosate | MR | 3 | 1999 |
| HEXACHLOROBENZENE | MR | 3 | 1999 |
| Hexachlorocyclopentadiene | MR | 3 | 1999 |
| Picloram | MR | 3 | 1999 |
| Simazine | MR | 3 | 1999 |
| 2,3,7,8-TCDD | MR | 3 | 1999 |
| Toxaphene | MR | 3 | 1999 |
| Endrin | MR | 3 | 1999 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.