Identifying and Rank-Ordering Large Volume Leaks in the Underground Natural Gas Distribution System of Massachusetts

This 2018 study evaluates various methods for identifying and rank-ordering large-volume natural gas leaks within Massachusetts' aging distribution network to prioritize repairs and efficiently reduce methane emissions. The research demonstrates that the "leak footprint" method is the most accurate and cost-effective approach for locating these significant leaks, ultimately prompting a major agreement with state utilities that could reduce Massachusetts' total greenhouse gas emissions by up to four percent.