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Lead in Connecticut drinking water

499 community water systems tested

6.6%
of tested systems exceeded the lead action level
(33/499)

Lead is a neurotoxin with no known safe level. It usually enters water from old service lines and household plumbing rather than the source, so results vary system to system. The EPA acts when the 90th-percentile sample exceeds 0.015 mg/L.

Water systems

Lead value per system, LCR compliance samples. EPA action level — 0.015 mg/L at the 90th percentile. Systems that exceeded the lead action level are highlighted and listed first. “Not detected” means the contaminant was measured but not found.
SystemCityPopulationLead (mg/L)
FREEDOM VILLAGE ELDERLY HOUSING MONTVILLE 43 0.2389 mg/L
ROSEBROOK WATER CARROLL 1,050 0.1752 mg/L
ABENAKI WATER/WHITE ROCK WATER BOW 238 0.1600 mg/L
LINDHBROOK WATER COMPANY HOPKINTON 200 0.0799 mg/L
WOODSTOCK MEADOWS CONDOMINIUM ASSN. WOODSTOCK 180 0.0785 mg/L
ARROWHEAD BY THE LAKE ASSOCIATION, INC. WOLCOTT 288 0.0734 mg/L
KITEMAUG ORCHARD ASSOCIATION, INC. MONTVILLE 490 0.0660 mg/L
THOMPSON HILL WATER CO - PAULA LANE DIV THOMPSON 85 0.0570 mg/L
HUBBARD HILL APARTMENTS KILLINGLY 36 0.0452 mg/L
ABENAKI WATER/TIOGA BELMONT BELMONT 55 0.0340 mg/L
CTWC - WESTCHESTER EAST EAST HAMPTON 153 0.0310 mg/L
MEADOWS APARTMENTS MONTVILLE 301 0.0292 mg/L
AQUARION-RIDGEFIELD KNOLLS RIDGEFIELD 958 0.0285 mg/L
LYME REGIS, INC. OLD LYME 32 0.0274 mg/L
COVENTRY HOUSING AUTHORITY-LOWER SYSTEM COVENTRY 80 0.0260 mg/L
BIRCH LANDING CONDOMINIUM PLYMOUTH 82 0.0249 mg/L
MOOSUP GARDEN APARTMENTS PLAINFIELD 270 0.0247 mg/L
ASHFORD HILLS APARTMENTS ASHFORD 136 0.0232 mg/L
ASH WATER COMPANY, LLC LEDYARD 108 0.0232 mg/L
LAKESIDE MANOR APARTMENTS MONTVILLE 72 0.0231 mg/L
ST. THOMAS MORE SCHOOL-MAIN SYSTEM MONTVILLE 270 0.0225 mg/L
HIGH MEADOW HADDAM 38 0.0217 mg/L
CTWC - PILGRIM HILLS DIVISION COVENTRY 229 0.0200 mg/L
CHESTELM HEALTH & REHABILITATION CENTER EAST HADDAM 120 0.0195 mg/L
MILE CREEK APARTMENTS OLD LYME 60 0.0187 mg/L
HOP RIVER HOMES ANDOVER 26 0.0183 mg/L
AQUARION-DEAN HEIGHTS NEW MILFORD 162 0.0168 mg/L
LAUREL HEIGHTS ASSOCIATION, INC. OLD LYME 45 0.0165 mg/L
BROOKFIELD HOUSING AUTHORITY BROOKFIELD 37 0.0162 mg/L
ABENAKI WATER /LAKELAND BELMONT 395 0.0160 mg/L
BIRCH GROVES ASSOCIATION, INC NEW MILFORD 300 0.0159 mg/L
CONRADS PARK KILLINGLY 60 0.0152 mg/L
CANDLE HILL MOBILE HOME PARK NEW MILFORD 233 0.0151 mg/L
EAST HAMPTON WPCA - ROYAL OAKS SYSTEM EAST HAMPTON 328 0.0150 mg/L
MAR-LEA PARK APARTMENTS ASHFORD 50 0.0148 mg/L
STERLING WATER SYSTEM STERLING 308 0.0148 mg/L
GOODSPEED ACTOR HOUSING - THE VILLAGE EAST HADDAM 40 0.0148 mg/L
MAPLEWOOD-MILLBROOK APARTMENTS MANSFIELD 153 0.0145 mg/L
AQUARION-LAKESIDE SOUTHBURY 455 0.0144 mg/L
WESTCHESTER HILLS CONDOMINIUM ASSN. COLCHESTER 225 0.0142 mg/L
CTWC - UNIONVILLE SYSTEM AVON 14,693 0.0140 mg/L
BOXWOOD CONDOMINIUM ASSOCIATION OLD LYME 28 0.0140 mg/L
VOLUNTOWN HOUSING AUTHORITY VOLUNTOWN 42 0.0138 mg/L
MIDDLEBURY COMMONS MIDDLEBURY 76 0.0138 mg/L
SUNNY WATERS MOBILE HOME PARK NORWICH 303 0.0136 mg/L
BEE BROOK CROSSING CONDOMINIUMS WASHINGTON 120 0.0136 mg/L
AQUARION-JUDEA DEPOT WASHINGTON 68 0.0136 mg/L
RIDGEVIEW HEIGHTS WILLINGTON 96 0.0135 mg/L
CTWC - FOREST HOMES DIVISION MARLBOROUGH 100 0.0131 mg/L
AQUARION-RIDGEFIELD RIDGEFIELD 7,476 0.0130 mg/L
HERITAGE HILL CONDOMINIUM ASSN, INC WOODBURY 120 0.0130 mg/L
RIDGEWOOD HILLS ASSOCIATION SYSTEM 1 DEEP RIVER 36 0.0130 mg/L
ST. THOMAS MORE SCHOOL-THE COVE MONTVILLE 25 0.0130 mg/L
SOUTHRIDGE PARK APARTMENTS BOLTON 50 0.0130 mg/L
MARIANAPOLIS PREP SCHOOL - ST JOHNS THOMPSON 128 0.0129 mg/L
KENSINGTON FIRE DISTRICT BERLIN 7,553 0.0128 mg/L
NORTH PURCHASE ELDERLY HOUSING BETHLEHEM 72 0.0128 mg/L
ROCK TERRACE TRAILER PARK HIGHLANDS (T) 130 0.0127 mg/L
WOODBURY PLACE CONDOMINIUM ASSN WOODBURY 72 0.0126 mg/L
BRIDGEWATER COMMONS CONDOMINIUMS BRIDGEWATER 51 0.0124 mg/L
CARRIAGE HOUSE APARTMENTS MANSFIELD 196 0.0123 mg/L
LAKE HILLS VILLAGE CONDOMINIUMS WOLCOTT 102 0.0122 mg/L
AQUARION-NEWTOWN REGIONAL NEWTOWN 6,054 0.0120 mg/L
DURHAM CENTER DIVISION DURHAM 1,601 0.0120 mg/L
AQUARION-ARLINGTON ACRES STONINGTON 392 0.0120 mg/L
CTWC - WESTCHESTER VILLAGE COLCHESTER 252 0.0120 mg/L
MARLBOROUGH HEALTH CARE CENTER, INC MARLBOROUGH 165 0.0120 mg/L
FOX LAUREL MOBILE HOME PARK, LLC MONTVILLE 40 0.0120 mg/L
COUNTRY COURT MOBILE HOME PARK COLESVILLE (T) 62 0.0119 mg/L
CTWC - PONEMAH VILLAGE COLCHESTER 60 0.0119 mg/L
AQUA VISTA ASSOC, INC DANBURY 388 0.0118 mg/L
AQUARION-BERKSHIRE BETHEL 75 0.0117 mg/L
THE RECTORY SCHOOL POMFRET 300 0.0117 mg/L
EVANGELICAL CHRISTIAN CENTER - MAIN ASHFORD 84 0.0116 mg/L
CTWC - COVENTRY HILLS DIV COVENTRY 700 0.0116 mg/L
MALLARD COVE CONDOMINIUM ASSN. EAST HAMPTON 177 0.0116 mg/L
SCWA, ROBIN HILL DIVISION (RBN) MONTVILLE 388 0.0115 mg/L
BOYD COMMUNITY WESTMORELAND (T) 100 0.0114 mg/L
UNIVERSITY OF CONNECTICUT - MAIN CAMPUS MANSFIELD 27,199 0.0113 mg/L
SUNSET APARTMENTS LLC BOLTON 46 0.0112 mg/L
CTWC - GALLUP SYSTEM PLAINFIELD 2,538 0.0112 mg/L
DODGE FARM WASHINGTON 42 0.0111 mg/L
CHELSEA COMMON CONDOMINIUM ASSOCIATION EAST GRANBY 126 0.0110 mg/L
WORTHINGTON FIRE DISTRICT BERLIN 2,875 0.0110 mg/L
CANDLEWOOD TRAILS ASSOCIATION, INC. NEW MILFORD 312 0.0110 mg/L
AQUARION-NEW CANAAN NEW CANAAN 10,097 0.0109 mg/L
SNUG HARBOR DEVELOPMENT CORP DANBURY 144 0.0109 mg/L
BROOKVIEW WATER COMPANY RIDGEFIELD 55 0.0109 mg/L
SCWA, CHESTERFIELD DIVISION MONTVILLE 524 0.0108 mg/L
CTWC - SOUTH COVENTRY SYSTEM COVENTRY 501 0.0107 mg/L
CTWC - GREEN SPRINGS SYSTEM MADISON 104 0.0106 mg/L
CHATHAM ACRES ELDERLY HOUSING EAST HAMPTON 50 0.0104 mg/L
BROOKSCROSSING APARTMENTS POMFRET 36 0.0104 mg/L
SCWA, OAKDALE HEIGHTS DIVISION MONTVILLE 876 0.0104 mg/L
WATERTOWN FIRE DISTRICT WATERTOWN 6,718 0.0104 mg/L
AQUARION-NEW FAIRFIELD NEW FAIRFIELD 406 0.0103 mg/L
BERNHARDT MEADOW ROXBURY 36 0.0102 mg/L
BEDROCK TOWERWOOD MOBILE HOME COMMUNITY LAKE WALES 300 0.0101 mg/L
BETHANY MOBILE HOME PARK BETHANY 138 0.0101 mg/L
AQUARION-NEW HARTFORD NEW HARTFORD 1,872 0.0100 mg/L