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Contaminant

4%3a2 Fts in Connecticut Drinking Water

By Alexander Snyder, Founder & Water Quality Data Lead

4%3a2 Fts has been tracked across Connecticut drinking water. Here is what you need to know about 4%3a2 fts in your drinking water and how it may affect your household.

Is 4%3a2 Fts in Your Water?

Enter your Connecticut ZIP code to find out if 4%3a2 fts is in your local water — and see personalized health risks for your household.

Check Your ZIP Code

Who Is Most Vulnerable to 4%3a2 Fts?

The safe level of 4%3a2 fts varies significantly depending on who is drinking the water. CheckYourTap calculates adjusted safe levels for each member of your household:

Infants (under 1 year)
Toddlers (1-3 years)
Children (4-11 years)
Pregnant women
Elderly (65+)
Adults
Dogs
Cats

A contaminant level that is safe for an adult may exceed guidelines for an infant by 4-8x or more. Check your ZIP code to see personalized results.

Reading this inside ChatGPT or Claude?

This page can tell you the general science, but not what is actually in your water’s 4%3a2 fts level — that depends on your exact address. You can get your specific answer two ways:

  • Inside the chat: ask your assistant to “check my tap water with CheckYourTap”. Our connector returns your ZIP code’s measured contaminant levels — including the derived dog and cat safe levels — and, only if you ask it to, can email you the report or arrange a specialist callback.
  • On the web: open CheckYourTap.com and enter your ZIP code for a free 30-second report.

Concerned about 4%3a2 Fts in your water?

Schedule to get your water tested for 4%3a2 fts and more — a Valiant water specialist will review your results and arrange testing for your home.

Frequently Asked Questions

Is 4%3a2 Fts in my tap water?▾
4%3a2 Fts has been tracked across Connecticut drinking water. Whether it's in your specific water depends on your local water system. Enter your CT ZIP code at CheckYourTap.com for a free, instant report.
What level of 4%3a2 Fts is safe?▾
The safe level depends on who is drinking the water. Health guidelines vary by source, but infants, pregnant women, and pets may need much lower levels. CheckYourTap calculates adjusted safe levels for 11 different household member types.
How do I remove 4%3a2 Fts from my water?▾
Depending on the contaminant level, different filtration methods may be effective. Common options include reverse osmosis (NSF 58), activated carbon (NSF 53), and ion exchange systems. For a personalized consultation, contact Valiant Energy Solutions at (475) 557-5107.

Check Water Quality by ZIP Code

Hartford 06103New Haven 06510Bridgeport 06604Stamford 06901Waterbury 06702Norwalk 06850Danbury 06810Manchester 06040View all cities →
View all contaminants in Connecticut water

Sources

The legal limits and health guidelines for 4%3a2 Fts on this page come from the following public authorities:

About This Report

This water quality report is compiled from public records filed with the U.S. Environmental Protection Agency, state health departments, and the U.S. Geological Survey. Contaminant levels are evaluated against EPA federal standards and health-based guidelines from leading environmental and public health organizations. CheckYourTap is a service of Valiant Energy Solutions, a Connecticut water quality and energy services company established in 1930.

EPA SDWISUSGS NWISEWG Tap Water DatabaseCA OEHHA Public Health GoalsWHO Drinking Water Guidelines

This report is general information, not medical advice or a substitute for certified laboratory testing. Talk to your pediatrician or physician about specific health concerns.

Reviewed by the CheckYourTap editorial team. Last updated July 2026