Connecticut Water Quality

Tap water quality data for 68 cities and their water systems

48 of 68 Cities

Sorted by population served

Seymour

Utility serves 784K

Hardness68 ppm
LeadBelow limit
Violations72 (3yr)

Southington

Utility serves 591K

Hardness48.8 ppm
LeadBelow limit
Violations6 (3yr)

Wolcott

Utility serves 573K

Hardness68 ppm
LeadBelow limit
Violations6 (3yr)

Stamford

Utility serves 553K

Hardness113.5 ppm
LeadBelow limit
Violations75 (3yr)

Berlin

Utility serves 553K

Hardness48.8 ppm
LeadBelow limit
Violations109 (3yr)

Prospect

Utility serves 549K

Hardness68 ppm
LeadBelow limit
Violations4 (3yr)

South Windsor

Utility serves 544K

Hardness48.8 ppm
LeadBelow limit
Violations9 (3yr)

Manchester

Utility serves 544K

Hardness48.8 ppm
LeadBelow limit
Violations6 (3yr)

Darien

Utility serves 532K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)

Greenwich

Utility serves 525K

Hardness113.5 ppm
LeadBelow limit
Violations75 (3yr)

Cheshire

Utility serves 520K

Hardness68 ppm
LeadBelow limit
Violations6 (3yr)

Wallingford

Utility serves 515K

Hardness68 ppm
LeadBelow limit
Violations60 (3yr)

Farmington

Utility serves 509K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

East Granby

Utility serves 508K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Windsor Locks

Utility serves 492K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Meriden

Utility serves 477K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Newington

Utility serves 477K

Hardness48.8 ppm
LeadBelow limit
Violations99 (3yr)

West Hartford

Utility serves 464K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

New Canaan

Utility serves 463K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)

North Haven

Utility serves 456K

Hardness68 ppm
LeadBelow limit
Violations60 (3yr)

Norwalk

Utility serves 453K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)

Cromwell

Utility serves 446K

Hardness22.4 ppm
LeadBelow limit
Violations2 (3yr)

Glastonbury

Utility serves 442K

Hardness48.8 ppm
LeadBelow limit
Violations6 (3yr)

Wilton

Utility serves 434K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)

Bethany

Utility serves 432K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Ansonia

Utility serves 432K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Woodbridge

Utility serves 432K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Ridgefield

Utility serves 423K

Hardness113.5 ppm
LeadBelow limit
Violations78 (3yr)

Derby

Utility serves 420K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Orange

Utility serves 420K

Hardness68 ppm
LeadBelow limit
ViolationsNone

North Branford

Utility serves 419K

Hardness68 ppm
LeadBelow limit
Violations5 (3yr)

Branford

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

East Haven

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Hamden

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Milford

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

New Haven

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

West Haven

Utility serves 419K

Hardness68 ppm
LeadBelow limit
ViolationsNone

Portland

Utility serves 396K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Westport

Utility serves 392K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)

Bloomfield

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
Violations15 (3yr)

Rocky Hill

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
Violations6 (3yr)

East Hartford

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Hartford

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Wethersfield

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Windsor

Utility serves 391K

Hardness48.8 ppm
LeadBelow limit
ViolationsNone

Beacon Falls

Utility serves 388K

Hardness68 ppm
LeadBelow limit
Violations72 (3yr)

Newtown

Utility serves 361K

Hardness113.5 ppm
LeadBelow limit
Violations104 (3yr)

Weston

Utility serves 352K

Hardness113.5 ppm
LeadBelow limit
Violations72 (3yr)