Cambridge Gas Leak Maps

Through the Squeaky Leak Project, HEET has mapped natural gas leaks along public streets in Cambridge and Somerville.
The Squeaky Leak Report summarizes the key findings from the mapping project.

In Cambridge, HEET found:
• an average of 2.1 leaks per linear mile
• 305 leaks found or only 45% of what was expected

These surveys were conducted in the summer of 2014. If you smell gas now at any of these sites, call the local utility’s gas leak line:
• National Grid: 1 800 732-3400
• Eversource: 1 800 592-2000

Cambridge-Whole City_HEET

West Cambridge to Harvard Sq_HEET

Harvard Yard to East Cambridge_HEET


Porter Square_HEET

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