New Hampshire Tap Water Quality

EPA water quality data for 150 community water systems serving 194,553+ people in New Hampshire. Click any system to see violations, lead testing results, and a safety grade.

New Hampshire relies on a mix of surface water and bedrock wells for drinking water. PFAS contamination from the former Pease Air Force Base and a Saint-Gobain plastics facility prompted the state to adopt some of the strictest PFAS standards in the country. Naturally occurring arsenic and uranium are common in granite bedrock wells.

CONCORD WATER DEPT CONCORD, NH · 44,215 people · Surface Water DOVER WATER DEPT DOVER, NH · 29,000 people · Groundwater DERRY WATER DEPT DERRY, NH · 17,290 people · Surface Water Purchased UNH/DURHAM WATER SYS DURHAM, NH · 16,000 people · Surface Water BERLIN WATER WORKS BERLIN, NH · 9,575 people · Surface Water CLAREMONT WATER DEPT CLAREMONT, NH · 9,000 people · Surface Water NORTH CONWAY WATER PCT NORTH CONWAY, NH · 5,500 people · Groundwater LOWER BARTLETT WATER PCT INTERVALE, NH · 3,850 people · Groundwater PENACOOK BOSCAWEN WATER PCT NASHUA, NH · 3,800 people · Groundwater BRISTOL WATER WORKS BRISTOL, NH · 3,575 people · Groundwater LITTLE POND ESTATES NASHUA, NH · 3,000 people · Surface Water Purchased CHARLESTOWN WATER WORKS CHARLESTOWN, NH · 2,850 people · Groundwater CONWAY WATER AND SEWER CONWAY, NH · 2,745 people · Groundwater LOCKE LAKE NASHUA, NH · 2,280 people · Surface Water ALTON WATER WORKS ALTON, NH · 1,800 people · Groundwater BETHLEHEM VILLAGE DIST BETHLEHEM, NH · 1,750 people · Surface Water BELMONT WATER DEPT NASHUA, NH · 1,612 people · Groundwater ASHLAND WATER DEPT ASHLAND, NH · 1,525 people · Groundwater DREW WOODS NASHUA, NH · 1,408 people · Surface Water Purchased ROCKINGHAM COUNTY COMPLEX BRENTWOOD, NH · 1,387 people · Groundwater COLEBROOK WATER WORKS COLEBROOK, NH · 1,300 people · Groundwater WATERVILLE ESTATE VLG DIST/W CAMPTON, NH · 1,250 people · Groundwater POWDER HILL NASHUA, NH · 1,155 people · Surface Water Purchased ROSEBROOK WATER MONROE, CT · 1,050 people · Groundwater ANTRIM SEWER AND WATER DEPT ANTRIM, NH · 920 people · Groundwater CABOT PRESERVE NASHUA, NH · 878 people · Groundwater Purchased CARROLL WATER WORKS TWIN MOUNTAIN, NH · 875 people · Groundwater BEAR VIEW CROSSING ALLENSTOWN, NH · 800 people · Groundwater Purchased BENNINGTON WATER DEPT BENNINGTON, NH · 775 people · Groundwater RIVER RUN CONDOS NORTH CONWAY, NH · 750 people · Groundwater CANAAN WATER DEPT CANAAN, NH · 684 people · Surface Water ANDOVER VILLAGE DIST ANDOVER, NH · 650 people · Surface Water BARTLETT VILLAGE PCT BARTLETT, NH · 625 people · Surface Water CAMPTON VILLAGE PCT CAMPTON, NH · 600 people · Groundwater BIRCH HILL EAST NASHUA, NH · 550 people · Groundwater Purchased MAPLE HILL ACRES NASHUA, NH · 523 people · Surface Water Purchased COLBY POND ATKINSON, NH · 485 people · Groundwater ROCKHOUSE MOUNTAIN CONWAY, NH · 480 people · Groundwater PINE GARDENS MHP BELMONT, NH · 413 people · Groundwater ABENAKI WATER /LAKELAND MONROE, CT · 395 people · Groundwater COTTON FARMS MHP MINNEAPOLIS, MN · 390 people · Groundwater MOUNTAIN VALE VILLAGE MHP SAN FRANCISCO, CA · 388 people · Groundwater CATAMOUNT HILL CONCORD, NH · 383 people · Groundwater MALLARDS LANDING BELMONT, NH · 325 people · Groundwater NORDIC VILLAGE CHEPACHET, RI · 315 people · Groundwater LEDGES AT NEWFOUND LAKE GILFORD, NH · 307 people · Groundwater OAKWOOD TERRACE NASHUA, NH · 307 people · Surface Water Purchased CARDIGAN MOUNTAIN SCH CANAAN, NH · 300 people · Groundwater LINDERHOF PROP OWNR ASSN GLEN, NH · 295 people · Groundwater SOUHEGAN WOODS NASHUA, NH · 293 people · Groundwater ROPEWALK SERVICES ASHLAND, NH · 290 people · Groundwater LAKES REGION MHP COOP II BELMONT, NH · 276 people · Groundwater EAGLE RIDGE RESORT GLEN, NH · 270 people · Groundwater MERRYMEETING MHP ALTON, NH · 265 people · Groundwater VILLAGE AT RIVERBEND PLYMOUTH, NH · 258 people · Groundwater GLEN RIDGE DEV NASHUA, NH · 253 people · Groundwater EMERALD ACRES BARRINGTON, NH · 250 people · Groundwater SUNRAY SHORES WATER DIST BELMONT, NH · 250 people · Groundwater MAPLE HAVEN NASHUA, NH · 250 people · Groundwater MAPLEVALE AND CRICKET HILL ATKINSON, NH · 248 people · Groundwater VILLAGES AT CHESTER CONDOS MANCHESTER, NH · 245 people · Groundwater CONTOOCOOK RIVER COOPERATIVE DEERING, NH · 245 people · Groundwater OLDE TOWNE ALLENSTOWN, NH · 243 people · Groundwater SACO WOODS CONDOS GLEN, NH · 240 people · Groundwater ABENAKI WATER/WHITE ROCK WATER MONROE, CT · 238 people · Groundwater TWO RIVERS MHCC CAMPTON, NH · 234 people · Groundwater GLENCLIFF HOME FOR THE ELDERLY GLENCLIFF, NH · 230 people · Groundwater SWAINS LAKE VILLAGE WATER BARRINGTON, NH · 227 people · Groundwater BROOKDALE SPRUCE WOOD DURHAM, NH · 225 people · Groundwater HALE ESTATES CONWAY, NH · 220 people · Groundwater ROCK RIMMON COOPERATIVE EAST HAMPSTEAD, NH · 200 people · Groundwater BARRINGTON MOBILE HOME ESTATES LAS VEGAS, NH · 198 people · Groundwater WOODLAND GROVE MOULTONBOROUGH, NH · 185 people · Groundwater MOUNTAINSIDE AT CROTCHED MTN NASHUA, NH · 180 people · Groundwater WINDY ACRES WALPOLE, NH · 180 people · Groundwater GOODRICH PROPERTY GLEN, NH · 175 people · Groundwater MOUNTAINSIDE ON ATTITASH GLEN, NH · 167 people · Groundwater STAGECOACH FARMS DURHAM, NH · 167 people · Groundwater LEE OAK COOPERATIVE BARRINGTON, NH · 163 people · Groundwater TOP NOTCH CONDOS GLEN, NH · 163 people · Groundwater WRIGHT FARM CONDOS BOSTON, MA · 160 people · Groundwater RAND SHEPARD HILL DERRY, NH · 158 people · Groundwater REBECCA LANE WATER SYS CENTER CONWAY, NH · 155 people · Groundwater CATHEDRAL LEDGE NORTH CONWAY, NH · 153 people · Groundwater COW HILL WELLHOUSE STRATHAM, NH · 150 people · Groundwater BELMONT WATER DEPT/NORTH NASHUA, NH · 150 people · Surface Water Purchased BOW MUNICIPAL WATER SYSTEM BOW, NH · 150 people · Groundwater DEER RUN MOULTONBOROUGH, NH · 150 people · Groundwater OAK HILL ATKINSON, NH · 150 people · Groundwater HI AND LO ESTATES NASHUA, NH · 143 people · Surface Water Purchased STILLINGS GRANT BARTLETT, NH · 141 people · Groundwater ATKINSON WOODS EXETER, NH · 140 people · Groundwater CENTENNIAL ESTATES DERRY, NH · 140 people · Groundwater EAGLES REST MHP ALTON, NH · 138 people · Groundwater CATES MOBILE HOME COLONY SANBORNTON, NH · 134 people · Groundwater WHITTEMORE SHORES HILL, NH · 130 people · Groundwater ANNIE OAKLEY MHP WINDHAM, NH · 127 people · Groundwater PIPER MEADOWS PRIVATE COMMUNTY PORTSMOUTH, NH · 125 people · Groundwater MELODY PINES CONDOS INTERVALE, NH · 125 people · Groundwater IRON WHEEL MHP DANVILLE, NH · 124 people · Groundwater WILDWOOD DEV MOULTONBOROUGH, NH · 123 people · Groundwater BARRINGTON OAKS NORTHWOOD, NH · 123 people · Groundwater NORTH LEDGE CONWAY, NH · 120 people · Groundwater SOLAR VILLAGE BELMONT, NH · 120 people · Groundwater CRAWFORD HILLS ARLINGTON, MA · 118 people · Groundwater FOREST EDGE INTERVALE, NH · 118 people · Groundwater RIDGEWOOD ESTATES MANCHESTER, NH · 115 people · Groundwater PEPPERIDGE WOODS BARRINGTON, NH · 113 people · Groundwater WHITE ROCK SENIOR LIVING NASHUA, NH · 110 people · Groundwater ECHO LAKE WOODS MOULTONBOROUGH, NH · 110 people · Groundwater STONE SLED FARM NASHUA, NH · 105 people · Groundwater CEDAR CREEK PORTSMOUTH, NH · 105 people · Groundwater DREW POND DOVER, NH · 100 people · Groundwater BATH VILLAGE WATER WORKS BATH, NH · 100 people · Groundwater CHESTER BROOK CHESTER, NH · 100 people · Groundwater COMMONS OF ATKINSON BEDFORD, NH · 95 people · Groundwater MOUNTAIN VIEW PARK ESTATES LACONIA, NH · 95 people · Groundwater SPRUCE VALLEY MHP DANVILLE, NH · 92 people · Groundwater BLUEBERRY VILLAGE CONDOS PORTSMOUTH, NH · 90 people · Groundwater FARMSTEAD ACRES NASHUA, NH · 90 people · Groundwater COUNTRY HILLS OF EAST KINGSTON EXETER, NH · 90 people · Groundwater LAKESIDE AT WINNIPESAUKEE LACONIA, NH · 85 people · Groundwater WATER WHEEL ESTATES ATKINSON, NH · 85 people · Groundwater NORTHBROOK MHP LACONIA, NH · 85 people · Groundwater COUNTRY LANE MANOR SALEM, NH · 85 people · Groundwater SHAKER HEIGHTS NASHUA, NH · 83 people · Groundwater EVERGREEN DRIVE WATER WEARE, NH · 80 people · Groundwater CANDIA CROSSING MANCHESTER, NH · 80 people · Groundwater DEERBROOK CONDOS INTERVALE, NH · 80 people · Groundwater MORNINGSIDE DRIVE DERRY, NH · 80 people · Groundwater GRANITE STATE CAMPGROUND BELMONT, NH · 77 people · Groundwater RIVERSIDE COBB FARM GLEN, NH · 75 people · Groundwater COTTAGES AT WINDCHIMES EPPING, NH · 75 people · Groundwater DAVIS HILL CENTER CONWAY, NH · 75 people · Groundwater MASCOMA VALLEY COOP CONCORD, NH · 73 people · Groundwater AUTUMN WOODS DERRY, NH · 73 people · Groundwater BARTLETT PLACE GLEN, NH · 72 people · Groundwater MILL POND CROSSING STRATHAM, NH · 72 people · Groundwater BRANDYWINE E KINGSTON, NH · 72 people · Groundwater LADD HILL MHP FRANKLIN, NH · 70 people · Groundwater SOUTH PINES INTERVALE, NH · 70 people · Groundwater NORTH PINES GLEN, NH · 67 people · Groundwater COUNTRY VILLAGE MHP FRANKLIN, NH · 66 people · Groundwater HILLCREST MANOR APTS NASHUA, NH · 65 people · Groundwater BEEBE RIVER CAMPTON, NH · 63 people · Groundwater SACO RIVER FOREST FREEDOM, NH · 63 people · Groundwater OAKWOOD HEIGHTS INTERVALE, NH · 63 people · Groundwater NEAR LEDGE INTERVALE, NH · 63 people · Groundwater JOHNSON CREEK DURHAM, NH · 63 people · Groundwater WELL HILL ALSTEAD, NH · 60 people · Groundwater