Not health advice. Contact your local water utility for concerns.
Data from EPA Water Quality Reports. For official information, contact your water utility or health department.
Connecticut Water Quality Reports
Water quality scores for 25 cities in Connecticut
West Haven
54,666 residents
New Britain
72,543 residents
Middletown
46,406 residents
New London
27,001 residents
Naugatuck
31,519 residents
Norwalk
91,184 residents
Bridgeport
148,654 residents
Meriden
60,868 residents
Manchester
35,946 residents
Norwich
39,112 residents
Waterbury
114,403 residents
Torrington
34,319 residents
Bristol
60,062 residents
Derby
12,325 residents
Shelton
41,162 residents
Stratford
52,485 residents
Ansonia
18,709 residents
Hartford
121,054 residents
Groton
38,411 residents
Stamford
135,470 residents
East Hartford
50,446 residents
Milford
53,348 residents
Enfield
42,141 residents
New Haven
134,023 residents
Danbury
86,518 residents
About Connecticut Water Quality
This state's water quality reflects local geographic conditions, industrial activities, and water infrastructure. Water quality can vary significantly between communities, with some areas enjoying excellent tap water while others face contamination challenges requiring treatment.
Based on our analysis of 25 cities in Connecticut, the average water quality score is 82/100. 3 cities have water quality scores below 70, indicating potential concerns that residents should be aware of. The highest-rated city is Danbury with a score of 67/100, while West Haven has the most room for improvement at 97/100.
Water Sources in Connecticut
Water sources typically include a combination of surface water (rivers, lakes, reservoirs) and groundwater. The specific sources serving your community depend on local geography and infrastructure. Check your local water utility's Consumer Confidence Report for details about your water source.
Common Water Contaminants in Connecticut
These contaminants have been detected in various Connecticut water systems
Connecticut Water Regulations
State environmental and health agencies oversee drinking water quality in compliance with federal EPA standards. Public water systems are required to test regularly and report results to residents through annual Consumer Confidence Reports.
Health Considerations
Water quality concerns vary by location. Common issues include lead from older plumbing, agricultural runoff in rural areas, and industrial contamination near manufacturing sites. Check your local water quality report and consider testing if you have specific concerns.
Recommendations for Connecticut Residents
Review your annual Consumer Confidence Report to understand local water quality. Consider having your water tested if you use a private well or have concerns about your plumbing. Water filters certified to remove specific contaminants can address most common water quality issues.
Frequently Asked Questions About Connecticut Water Quality
Is Connecticut's tap water safe to drink?
Most Connecticut cities have tap water that meets EPA safety standards. With an average score of 82/100 across 25 cities we analyzed, Connecticut generally has good water quality. However, water quality varies by location, so check your specific city's report.
What are the main water quality concerns in Connecticut?
The most common water quality concerns in Connecticut include disinfection byproducts (chlorination), lead (older infrastructure), nitrates (agricultural areas). These contaminants can come from natural sources, industrial activities, or aging infrastructure. Review your city's specific report to see which contaminants affect your area.
Should I use a water filter in Connecticut?
Whether you need a water filter depends on your specific location and health concerns. With 3 cities in Connecticut showing elevated contaminant levels, residents in those areas may benefit from filtration. Look for filters certified by NSF/ANSI to remove the specific contaminants found in your area.
Where can I find my Connecticut water quality report?
Public water systems in Connecticut are required to provide annual Consumer Confidence Reports (CCRs) to residents. You can usually find your report on your water utility's website, request it by phone, or access it through the EPA's database. Our city-level reports above summarize key information from these official sources.