EPA SDWIS DataConnecticut

Fluoride in Connecticut Drinking Water

Connecticut has 11,255 public water systems. 4101 have recorded fluoride violations.

Total Systems

11,255

With Violations

4,101

EPA MCL

4

Population Served

3.0M

Fluoride in Connecticut: Key Facts

Total Water Systems

11,255

Systems with Violations

4,101

Lead Violations

74

Copper Violations

378

EPA Standard

4 mg/L

MCLG (goal): 4 mg/L

Water Systems with Violations in Connecticut

SystemPopulationViolations
27 MAPLE DRIVE385163
STONY BROOK MOBILE HOME PARK282663
GARDEN LANE APARTMENTS401470
166 BOSTON TURNPIKE71285
95 BRIDGE ROAD - HADDAM01193
125-131 BRADLEY ROAD - WOODBRIDGE3851147
YESHIVA OF WATERBURY-DURHAM CAMPUS4901081
4 WEST GRANBY ROAD971032

Health Effects of Fluoride Exposure

Dental fluorosis

Cosmetic tooth enamel changes at 2 mg/L+

Skeletal fluorosis

Bone damage with long-term exposure above 4 mg/L

At recommended levels (0.7 mg/L), fluoride benefits dental health

Dental fluorosis (cosmetic) at 2 mg/L. Skeletal fluorosis (bone damage) at 4 mg/L. Below 0.7 mg/L used for dental health.

Frequently Asked Questions

Is there fluoride in Connecticut water?

Connecticut has 11,255 public water systems. 4101 have recorded fluoride violations based on EPA SDWIS data. If you are on a private well, your water is not covered by these regulations and should be tested independently.

How can I check my Connecticut water for fluoride?

Search for your water system using the WaterCheck system lookup, or contact your utility and request a copy of your Consumer Confidence Report (CCR). The CCR is published annually and lists all detected contaminants, their levels, and the EPA MCLs. For private wells, contact a state-certified lab for independent testing.

What is the EPA limit for fluoride?

The EPA Maximum Contaminant Level (MCL) for fluoride is 4 mg/L. Systems that exceed MCLs are required to notify customers and take corrective action.

Fluoride at a Glance

Categoryinorganic
EPA MCL4 mg/L

Source

Erosion of natural deposits; water additive to promote dental health; discharge from fertilizer and aluminum factories

How to Filter Fluoride

  • +Reverse osmosis removes fluoride
  • +Distillation removes fluoride
  • +Standard carbon filters do NOT remove fluoride