PlainWater

Public Water Systems

2,453 active public water systems in NH, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.

Population Violations Health Violations Name
System Name Location Population Violations PFAS
Hooksett Village Water Pct Hooksett, NH 3,000 60 -
Woodstock Water Dept North Woodstock, NH 2,950 28 -
Charlestown Water Works Charlestown, NH 2,850 37 -
Winchester Water Dept Winchester, NH 2,800 13 -
New London Springfield Water New London, NH 2,750 285 Clean
Conway Water and Sewer Conway, NH 2,745 291 -
Groveton Water Sys Northumberland, NH 2,650 79 -
Gorham Water and Sewer Dept Gorham, NH 2,630 85 -
Tilton Northfield Water Dist Tilton, NH 2,500 379 -
Lancaster Water Dept Lancaster, NH 2,450 217 -
NH Motor Speedway Meredith, NH 2,300 22 -
Locke Lake Nashua, NH 2,278 253 -
Woodsville Water and Light Woodsville, NH 2,075 79 -
Paradise Shores Moultonborough, NH 2,060 250 -
Hillsborough Water Works Hillsborough, NH 2,000 737 -
Hollis Sch Dist Hollis, NH 2,000 26 -
Alton Water Works Alton, NH 1,800 421 -
North Hinsdale Water Dept Hinsdale, NH 1,800 405 -
Wilton Water Works Wilton, NH 1,790 104 -
Bethlehem Village Dist Bethlehem, NH 1,750 299 -
Rollinsford Water Sewer Dist Rollinsford, NH 1,688 148 -
Sunapee Water Works Sunapee, NH 1,680 132 -
Whitefield Water Whitefield, NH 1,640 50 -
Franklin Pierce University Rindge, NH 1,638 179 -
Pittsfield Aqueduct Nashua, NH 1,630 376 -
Belmont Water Dept Nashua, NH 1,612 21 -
Exeter High Sch Exeter, NH 1,605 8 -
Epping Water and Sewer Dept Epping, NH 1,600 32 -
Hinsdale Water Dept/Downtown Hinsdale, NH 1,600 502 -
Contoocook Village Pct Concord, NH 1,600 93 -
Ashland Water Dept Ashland, NH 1,525 188 -
Canterbury Rest Area Concord, NH 1,505 12 -
Crotched Mountain Ski Area Bennington, NH 1,500 18 -
W Valley Ski Area Base Lodge Waterville Valley, NH 1,500 8 -
Springfield Rest Area Concord, NH 1,478 4 -
Gunstock Acres Village Dist Gilford, NH 1,440 140 -
Sanbornville Water Dept Sanbornville, NH 1,425 142 -
Drew Woods Nashua, NH 1,408 8 -
N Swanzey Water and Fire Prct N Swanzey, NH 1,400 40 -
Rockingham County Complex Brentwood, NH 1,387 15 -
Enfield Water Dept Enfield, NH 1,345 55 -
Golden Brook Sch Windham, NH 1,314 20 -
Colebrook Water Works Colebrook, NH 1,300 173 -
Emerald Lake Hillsboro, NH 1,300 179 -
Waterville Estate Vlg Dist/W Campton, NH 1,250 139 -
Rogers Campground Lancaster, NH 1,250 51 -
Westward Shores Campground West Ossipee, NH 1,225 8 -
Monadnock Regional High Sch Swanzey, NH 1,202 117 -
Mt Washington State Park Gorham, NH 1,200 16 -
Village District of Eidelweiss Madison, NH 1,200 45 Clean
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