June 16, 2026
Connecticut Water Quality Reports 2026 — 209 Cities
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Connecticut Water Quality Reports 2026
This page aggregates water quality reports for 209 cities across Connecticut, covering detected contaminants, source water data, and local treatment practices. Each city report links to detailed information specific to that municipality's water system. View PFAS filters.
Understanding what's in your tap water is the first step toward choosing the right filtration solution. Use the city list below to find your community's report, or explore our recommended filters for Connecticut residents.
Most Common Contaminants in Connecticut
| Contaminant | Cities Affected |
|---|---|
| PFAS | 209 cities |
| Arsenic | 209 cities |
| Nitrates | 209 cities |
| Chlorine/DBPs | 209 cities |
| Lead | 44 cities |
Connecticut City Water Quality Reports
| City | Contaminants Detected | Report |
|---|---|---|
| Andover | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Ansonia | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Ashford | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Avon | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Baltic | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bantam | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Barkhamsted | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Berlin | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Bethany | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bethel | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bethlehem | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bloomfield | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Bolton | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Bozrah | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Branford | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Bridgeport | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bridgewater | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Bristol | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Broad Brook | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Radiologicals, Copper | View Report |
| Broadbrook | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Brookfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Brooklyn | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Burlington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Canterbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Canton | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Chaplin | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Cheshire | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Chester | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Chestnut Ridge | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Clinton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Cobalt | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Colchester | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Columbia | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Cornwall Bridge | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Coventry | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Craftsbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Cromwell | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Danbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Danielson | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Dayville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Durham | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| East Granby | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| East Haddam | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| East Hampton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| East Hartford | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| East Lyme | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| East Windsor | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| East Woodstock | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Ellington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Enfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Essex | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Fairfield | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Farmington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Farmington Hills | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Forest Hills | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Gales Ferry | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Georgetown | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Glastonbury | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Goshen | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Granby | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Great Neck | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Greenwich | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Griswald | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Griswold | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Groton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Guilford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Haddam | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Hamden | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Hartford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Harwinton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Hebron | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Jewett City | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Kensington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Kent | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Killingley | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Killingly | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Killingworth | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Lakeville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Las Vegas | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Lebanon | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Ledyard | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Lisbon | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Litchfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Lyme | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Madison | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Manchester | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Mansfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Mansfield Center | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Marblehead | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Marlborough | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Mashantucket | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Meriden | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Middlebury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Middlefield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Middletown | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Millville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Monroe | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Monsey | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Montvale | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Montville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Montville 011 | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Moodus | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Moosup | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Morris | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Mystic | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Naugatuck | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Britain | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Fairfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Farifield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Hartford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Haven | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New London | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New Milford | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| New Preston | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| New York | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Newington | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Newtown | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Niantic | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Noank | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| North Branford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| North Kingston | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| North Stonington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Northford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Norton | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Norwalk | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Norwich | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Oakdale | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Oakville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Okemos | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Old Lyme | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Old Saybrook | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Oneco | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Orange | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Oxford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Palm Bay | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Radiologicals | View Report |
| Plainfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Plainfield Ct | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Plainville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Plymouth | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Pomfret | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Pomfret Center | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Portland | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Promfret | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Prospect | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Providence | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Putnam | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Quaker Hill | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Quinebaug | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Ridgefield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Rockfall | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Rocky Hill | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Roxbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Salisbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Sandy Hook | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria, Radiologicals | View Report |
| Scotland | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Seymour | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Sharon | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Shelton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Sherman | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Shewsbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Simsbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Somers | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| South Hadley | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| South Kent | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| South Windsor | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Southbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Southfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Southington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Sprague | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Stafford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Stafford Springs | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Stamford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Staten Island | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Sterling | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Stonington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Storrs | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Suffield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Tariffville | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Thompson | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Tolland | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Torrington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Trumbull | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Uncasville | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Union | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Vernon | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Voluntown | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Bacteria, Copper | View Report |
| Wallingford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Washington | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Washington Depot | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Waterbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Waterford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Watertown | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Weatogue | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| West Hartford | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| West Haven | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| West Mystic | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| West Suffield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Westerly | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Weston | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
| Wethersfield | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Willimantic | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Willington | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Wilton | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Winchester | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Windham | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Winsted | PFAS, Arsenic, Nitrates, Chlorine/DBPs, Bacteria | View Report |
| Wolcott | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Woodbury | PFAS, Arsenic, Nitrates, Chlorine/DBPs | View Report |
| Woodstock | PFAS, Arsenic, Lead, Nitrates, Chlorine/DBPs, Copper | View Report |
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