Advocates Say Study Backs EPA Caution On ‘Continuous’ Methane Monitors

Environmentalists claim a recent report questioning the reliability of continuous emissions monitoring systems (CEMS) serves as a de facto defense of EPA’s final oil and gas methane emissions rule that does not rely on them, though it also underscores questions EPA and states face as they seek to implement flexible monitoring under the rule. The June 18 report from Earthworks and Oil Change International primarily focuses on critiquing the use of CEMS as a basis for certifying natural gas...