Connecticut County Drinking Water Report Cards
Compare county Drinking Water Violation Exposure Scores in Connecticut. Scores combine health-based violations per 100,000 people served and the share of active systems with unresolved health-based violations. View methodology or download the CSV.
| Score | Grade | County | Systems | Population | Health Violations | Per 100K | Active Health Systems |
|---|---|---|---|---|---|---|---|
| 0 | F | Windham County | 255 | 63,884 | 382 | 598.0 | 72 |
| 0 | F | Tolland County | 293 | 59,720 | 268 | 448.8 | 58 |
| 1 | F | New London County | 396 | 209,068 | 432 | 206.6 | 78 |
| 9 | F | Hartford County | 219 | 836,032 | 163 | 19.5 | 34 |
| 10 | F | Middlesex County | 276 | 97,390 | 232 | 238.2 | 41 |
| 14 | F | Fairfield County | 335 | 765,934 | 720 | 94.0 | 43 |
| 19 | F | New Haven County | 212 | 723,250 | 151 | 20.9 | 22 |
| 24 | F | Litchfield County | 345 | 117,396 | 302 | 257.2 | 28 |