In a letter to the Texas Railroad Commission commenting on the RRC’s proposed rules on curbing earthquakes caused by high-pressure injection of waste fluids, the Environmental Protection Agency “applauded the RRC’s efforts to ensure it has sufficient regulatory authority to respond to any event of the type where concerns may arise.” Maybe the agencies will kiss and make up? Not likely. But the EPA agrees with proposed rules published by the RRC that would require applicants for disposal well permits to submit information about the area’s risk for earthquakes as part of their application. The rules also strengthen the RRC’s authority to limit or halt injection from existing wells where earthquake events occur.
Initially the RRC was slow to respond to complaints about earthquakes. At one point, citizens from the town of Azle, particularly affected by earthquakes, staged a protest before the RRC at which Azle citizens serenaded the commission with their own composition based on Elvis Presley’s All Shook Up. The RRC has now hired its own seismologist, and although Commissioners are cautious about connecting earthquakes to oil and gas activity, the proposed rules are a step in the right direction.
Texas now has more than 3,600 active commercial injection wells; it granted 668 permits last year alone. Earthquakes strong enough to damage homes have occurred in the Barnett Shale region. Similar problems have occurred in Oklahoma and other regions.
The proposed rule can be found here. Other comments on the proposed rule can be found here. Texas Tribune article on the proposed rules is here. SMU is conducting a study of the quakes around Azle and has installed seismic stations in the area to monitor seismic activity.