New Haven, Connecticut
Water Quality in New Haven, Connecticut
Watershed: Cove River – Frontal Long Island Sound
What is the water quality like in New Haven, CT?
Let’s dive deeper into what’s in New Haven water.
What’s in New Haven water?
Here are the top 5 chemical compounds in your water and what health issues they can potentially cause:
- Bromodichloromethane – Potential effect: Cancer
- Chloroform – Potential effect: Cancer
- Haloacetic acids – Potential effect: Cancer
- Hexavalent Chromium – Potential effect: Cancer
- Total trihalomethanes – Potential effect: Cancer
These are five of the 22 contaminants analyzed by the Environmental Working Group (ewg.org).
11 of these contaminants are rated as exceeding EWG Health Guidelines.
See the What Can You Do? section below for all of the contaminants you can filter out and how to do it.
Where does New Haven’s water come from?
New Haven’s water comes from the Cove River – Frontal Long Island Sound watershed.
6 of the 10 EPA assessed water sources in the Cove River – Frontal Long Island Sound watershed are in Impaired or Unknown condition. These include waterbodies from north of Woodmont, Connecticut to south of New Haven.
Ideally, a water source would be rated in Good condition. Waterbodies south of Woodmont past Milford are in Good condition.
Whether a water source is in Impaired or Good condition refers to the quality of these uses:
- Drinking Water
- Aquatic Life
- Fish and Shellfish Consumption
Learn more from How’s My Waterway
See below for what you can do to improve New Haven’s water.
Conclusion – What Can You Do?
Information about water quality can be surprising.
But there’s no reason to lose hope. There are things you can do in your household as well as things you can do at a community level.
In Your Household:
- Use Berkey filters with activated carbon to filter out 17 of the 22 contaminants in your drinking water.
- Berkey filters can also remove up to 99.99% of Lead in New Haven water.
- Brita can filter 11 contaminants (and Lead depending on the filter).
- Note: We may receive a commission if you decide to purchase filters through links on this page.
- To filter out 20 of the 22 contaminants, consider a Reverse Osmosis water filtration system for your house.
- These are more expensive than pitchers to purchase, but can be more effective.
- They have the benefit of filtering out heavy hitters like:
- 1,4-Dioxane – “Exposure may cause damage to the central nervous system, liver and kidneys.”
- Barium – health risks in water
- Bromodichloromethane – health risks in drinking water
- Chloroform – side effects
- Chromium (total)
- Dibromoacetic acid
- Dichloroacetic acid
- Haloacetic acids – chlorination byproduct*
- Hexavalent chromium – health effects
- Monochloroacetic acid
- Total trihalomethanes – byproduct of chlorination*
- Trichloroacetic acid
*Chlorination is an effective method of disinfecting/treating drinking water. You can then use a water filter to reduce the effects of chlorination byproducts to get the safest, cleanest water possible.
In Your Community:
Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.
Go to: https://www.newhavenct.gov/ to find contact information for your local officials.