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HEET’s map of utility-reported gas leaks in Dorchester, MA

Massachusetts utilities report every year on the location of the gas leaks in their territory.

HEET maps this data in over 200 Massachusetts towns and cities. Select the map of your town, then zoom in on your home, school, or business to find nearby leaks. These maps make the invisible visible and help inspire local action to reduce gas leaks.


Call If You Smell Gas
The leaks shown in our maps are surveyed by the utilities regularly and considered not likely to explode.

However, if you smell gas: first, leave the area immediately. Then call your gas company to inform them of the leak. Please also call if you notice a change in an existing leak—if the smell is stronger or has moved.

Educate Others
HEET’s website provides an overview of information on gas leaks. By sharing this information and the map of leaks in your municipality with your local officials, you can spread awareness and help get gas leaks addressed in your area. You can also use this information to write a letter to the editor of your local newspaper and educate others.

Connect your municipality with HEET
HEET has been working with municipalities to help them reduce their gas leaks. We’ve found a variety of inexpensive methods that cities and towns can use to work with utilities to reduce gas leaks. These methods will help reduce the associated costs of frequent repaving, damaged trees, and danger to residents and first responders.

Many best practices can be found at FixOurPipes.org, a collaboration between HEET and Metropolitan Area Planning Council (MAPC). Sharing this report is a good first step as well as a helpful resource to use with local officials and gas company representatives.

Donate to HEET
No large foundation has paid for HEET to map all the utility data, but we provide the maps for free to all. Donating to HEET will allow us to update the maps annually and continue to educate people about the issue.


Gas leaks in Somerville, MA found with a Picarro mobile survey.

In an Unlikely Partnership, Local Environmentalists and Utilities Work Together to Reduce Gas Leaks

WGBH, Nov 29, 2017

Environmental activists have long seen natural gas utilities as something of a foe… but environmentalists and gas companies in Massachusetts are doing something unusual—they’re teaming up to try to fix something they both agree is a problem.

There’s a New Tool in the Fight to Seal the State’s Gas Leaks

Boston Globe, Oct 31, 2017

“The utilities now have to act on the information” and use the FluxBar next year on “randomly selected large volume leaks. My hope is that it will reduce the problem.” —Audrey Schulman, President, HEET

Boston City Councilor Proposes Crackdown on Utility Companies

New England Cable Network  Dec 2016

“It makes me angry about the waste. It’s like going to a gas station and filling up your car and the nozzle dribbles all over the ground and you have to pay for it.” —Audrey Schulman, President, HEET

HEET’s Jason Taylor measuring gas leaks with volunteers in Newton, MA.

Senator Warren Praises HEET

South Coast Today  Nov 20, 2016

“Thanks to data collected by the Home Energy Efficiency Team, we know that in 2015 there were over 1,400 unrepaired natural gas leaks in Boston, over 400 in Weymouth, and over 500 in Springfield. Across the Commonwealth, a whopping 15,000 leaks still require repair, and many have been leaking for decades.” —Senator Elizabeth Warren

Legislation May Force Utilities to Fix Gas Leaks Quicker

Boston Globe  June 20, 2016

“The gas wasted by these leaks is potentially explosive, hurts human health, kills trees, damages the climate, and we ratepayers have to pay for the wasted gas,” said Audrey Schulman. “Fixing these gushers cuts the problem in half in the most cost-effective, least disruptive manner possible,” she said. “It’s a no-brainer.”

Missing Gas Leaks Raising Questions

Boston Globe, June 4, 2016

“This suggests that the utilities aren’t doing a good job tracking leaks,” said Audrey Schulman. “If they don’t have them on their books, they’re not monitoring them, and if they’re left unmonitored, leaks get worse.”

See our News Archive for more articles.