MyCleanWater

Connecticut Water Quality by City

Water quality reports for 162 cities in Connecticut.

CityPopulationContaminantsAbove LimitPFASViolations
New Haven419K42None15 active
Hartford391K00None2 active
Shelton352K102None340 active
Waterbury107K00None44 active
Clinton101K82None319 active
New Britain74K00None1 active
Danbury62K41None206 active
Meriden58K72None7 active
Bristol52K21None12 active
Manchester51K72None10 active
Southington43K82None10 active
Wilton42K00None1 active
Middletown41K00None20 active
Norwalk40K62None4 active
Wallingford37K32None35 active
Norwich36K53None57 active
Monroe34K62None40 active
Groton30K00None15 active
Waterford28K00None30 active
Storrs27K21None64 active
Mansfield Center21K10None2 active
Enfield19K72None45 active
Mashantucket17K00None8 active
Niantic15K62None12 active
Cromwell14K21NoneNone
Oakville10K00None8 active
Bethel10K31None244 active
Winsted8K00None6 active
Kensington8K00None1 active
Putnam7K52None52 active
Watertown7K00None21 active
Berlin5K10None6 active
Portland5K20None21 active
Ledyard4K00None17 active
Colchester4K21None12 active
Torrington3K00None17 active
Newtown3K00None37 active
Gales Ferry3K00None40 active
Wolcott3K00None2 active
Wethersfield2K00None11 active
East Windsor2K00None10 active
Granby2K00None2 active
Noank2K00None10 active
Durham2K00None67 active
Tariffville1K00None8 active
Uncasville1K00None105 active
Tolland1K00None41 active
Bridgeport1K00None40 active
Baltic1K00None10 active
Woodbury91200None19 active
South Windsor86400None24 active
Southbury81600None18 active
Sharon80300None33 active
Somers80000NoneNone
Brookfield73600None36 active
Kent72200None40 active
Seymour64600None6 active
Woodstock62000None13 active
Greenwich56700None1 active
Branford56400None16 active
East Hampton54000None95 active
New Fairfield52400None7 active
Salisbury52000None12 active
New Milford50000None99 active
Willington48900None153 active
Plainville46500None5 active
Goshen46200None76 active
Vernon43000None61 active
Stafford42900None14 active
Pomfret40000None6 active
Washington39800None37 active
East Granby36000None6 active
Simsbury32500None16 active
Windham31200None84 active
Oneco30800None11 active
Canterbury30100None15 active
Westport30000None40 active
Old Lyme29200None132 active
Weatogue27000NoneNone
Oakdale27000None6 active
Stafford Springs25000None10 active
Avon23800None3 active
Danielson23700None41 active
Stamford23300None158 active
South Kent22800None3 active
Mystic22500None26 active
Plainfield22000NoneNone
Essex20800NoneNone
Quinebaug20500None10 active
Harwinton20000None26 active
East Hartford19200None94 active
Quaker Hill18000None9 active
Lebanon17200None14 active
Marlborough16500None16 active
Sandy Hook15800None1 active
Bolton15600None34 active
New Preston13900None29 active
Ashford13600None43 active
Cobalt13000None5 active
Thompson12800None64 active
Moodus12000NoneNone
Washington Depot12000None14 active
Naugatuck12000None4 active
Willimantic11200None8 active
Litchfield10700None3 active
Bloomfield10400None46 active
Prospect10200None19 active
Glastonbury10200None25 active
Weston10000None33 active
Bantam9600None4 active
Broad Brook9400None19 active
Middlefield8500None13 active
Collinsville8400None58 active
Chester8100None5 active
East Haddam8100None17 active
Coventry8000None16 active
East Lyme7800None4 active
Middlebury7600None3 active
West Mystic7300None5 active
Bethlehem7200None4 active
Rocky Hill7200NoneNone
Fairfield7200None4 active
Griswold7200None16 active
Dayville6900None43 active
West Haven6900None8 active
Lakeville6800None5 active
West Hartford6800None55 active
New Hartford6400None4 active
Suffield6300None21 active
Rockfall6200None4 active
Burlington6000None4 active
Brooklyn6000None4 active
Easton6000None8 active
Ridgefield5500None8 active
Madison5400None5 active
Bridgewater5100None1 active
Cornwall Bridge4800None30 active
Pomfret Center4800None5 active
Farmington4600None14 active
Ellington4300NoneNone
Voluntown4200None3 active
Newington4000None9 active
Morris4000None10 active
Thomaston4000NoneNone
Orange4000None4 active
Southfield4000None5 active
Andover3900None6 active
Killingworth3600None7 active
Roxbury3600None3 active
Trumbull3500NoneNone
Lyme3200None3 active
W Simsbury3100None2 active
Northford3000None4 active
Broadbrook2900None6 active
Jewett City2800None16 active
Canton2800None3 active
Columbia2700None2 active
Falls Village2400None14 active
West Port2400None4 active
Guilford2300None2 active
West SuffieldN/A00None3 active
HaddamN/A00None1 active