New Hampshire Drinking Water Violations

2,446Water Systems
16,513Total Violations
2,679Health-Based
CountyWater SystemsTotal ViolationsHealth-Based
Rockingham 557 3,327 684
Carroll 363 2,399 429
Merrimack 247 1,674 340
Grafton 268 2,188 311
Hillsborough 280 1,969 289
Belknap 255 1,691 265
Strafford 131 1,024 174
Coos 112 841 73
Cheshire 168 1,058 66
Sullivan 65 342 48