HAWTHORNE TERRACE ASSOC
PWS ID: CT0340151 · DANBURY, Connecticut 06810
Population Served
156
Total Violations
170
Health-Based Violations
8
Water Source
Groundwater
System Details
- System Type
- Community
- Owner Type
- Local
- Connections
- 39
- County
- Fairfield
- School/Daycare
- No
- MCL Violations
- 0
- Monitoring Violations
- 144
- Treatment Tech Violations
- 8
Violation History
Contaminant violations recorded by EPA.
| Contaminant | Category | Count | Latest |
|---|---|---|---|
| Lead and Copper Rule | MR | 56 | 2025 |
| Consumer Confidence Rule | Other | 16 | 2019 |
| Coliform (TCR) | MR | 10 | 1998 |
| Lead and Copper Rule | TT | 8 | 2015 |
| Combined Radium (-226 and -228) | MR | 6 | 2013 |
| Gross Alpha, Excl. Radon and U | MR | 4 | 2013 |
| Combined Uranium | MR | 4 | 2013 |
| Endrin | MR | 2 | 2015 |
| Methoxychlor | MR | 2 | 2015 |
| Toxaphene | MR | 2 | 2015 |
| Glyphosate | MR | 2 | 2015 |
| Di(2-ethylhexyl) adipate | MR | 2 | 2015 |
| OXAMYL | MR | 2 | 2015 |
| Dinoseb | MR | 2 | 2015 |
| Aldicarb sulfoxide | MR | 2 | 2015 |
| Carbofuran | MR | 2 | 2015 |
| Atrazine | MR | 2 | 2015 |
| 2,4-D | MR | 2 | 2015 |
| HEXACHLOROBENZENE | MR | 2 | 2015 |
| Benzo(a)pyrene | MR | 2 | 2015 |
| Pentachlorophenol | MR | 2 | 2015 |
| Total Polychlorinated Biphenyls (PCB) | MR | 2 | 2015 |
| Chlordane | MR | 2 | 2015 |
| Asbestos | MR | 2 | 2013 |
| Dalapon | MR | 2 | 2015 |
| Hexachlorocyclopentadiene | MR | 2 | 2015 |
| LASSO | MR | 2 | 2015 |
| BHC-GAMMA | MR | 2 | 2015 |
| Picloram | MR | 2 | 2015 |
| Aldicarb sulfone | MR | 2 | 2015 |
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025.
This data is provided for informational purposes only.