National Grid produces quarterly reports for the DPU on the status of gas pipe network leak repair and elimination. The following is a list of all cities and towns mentioned in these reports from 06/30/2019 to 09/30/2024; most are served by National Grid and no other provider, but a few, marked by an asterisk (*), are served by multiple firms, and others, marked by a double asterisk (**), are not served by National Grid. Click on a town/city name to see a summary of the largest unrepaired leaks within the municipality which were reported by the company.