EPA EXPORT · 13 SEP 2026FEDERAL COMPLIANCE RECORDS · NOT A HOME WATER TEST
TAP WATERLEDGERPublic system compliance records

COUNTY WATER-SYSTEM LEDGER

Fairfield, Connecticut

Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.

Systems13active CWS · pop. 2,500+
Population served736,390reported total; may overlap
Current violation flag15.4%2 systems
Serious-violator flag0.0%0 systems

01 / SYSTEMS

Water systems serving Fairfield

Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.

Water systemPopulation servedPrimary sourceCurrent export status
Aquarion-Eastern Fairfield CountyCT0150011351,756Surface waterNo current violation flagged
Aquarion-StamfordCT1350011119,214Surface waterNo current violation flagged
Danbury Water DepartmentCT034001162,055Surface waterNo current violation flagged
Aquarion-GreenwichCT057001153,297Surface waterNo current violation flagged
South Norwalk Electric & WaterCT103002142,000Surface waterNo current violation flagged
Norwalk First Taxing DistrictCT103001140,256Surface waterNo current violation flagged
Aquarion-DarienCT035001118,737Surface water purchasedNo current violation flagged
Aquarion-New Milford RegionalCT096001113,331Ground waterNo current violation flagged
Aquarion-New CanaanCT090001110,097Surface water purchasedNo current violation flagged
Bethel Water DeptCT00900119,507Surface waterNo current violation flagged
Aquarion-RidgefieldCT11800117,476Surface water purchasedNo current violation flagged
Aquarion-Newtown RegionalCT09700116,054Ground waterOther current violation flag
Fairfield HillsCT09700212,610Ground waterCurrent health-based flag

02 / SOURCE MIX

Surface water7 systems · 678,085 served
Surface water purchased3 systems · 36,310 served
Ground water3 systems · 21,995 served
How to read the population total

It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.