Gardendale SRA
Texas Railroad Commission designated seismic response area — effective since September 2021
1,142
SWD wells inside SRA
132
Operators affected
19.7%
Avg capacity utilization
23,740,389
Total monthly injection (bbl)
301
Earthquakes in SRA (12mo)
3.4
Max magnitude (12mo)
What is a Seismic Response Area?
A Seismic Response Area (SRA) is a geographic zone designated by the Texas Railroad Commission where injection rates at saltwater disposal wells are reduced or monitored more closely due to induced seismicity concerns. Wells inside an SRA may face volume restrictions, enhanced reporting requirements, and additional permitting conditions.
The Gardendale Seismic Response Area covers portions of northeast Ector and southwest Martin counties. It was established in September 2021 and expanded in December 2022. The TRC imposed injection rate reductions on SWD wells within this zone due to induced seismicity linked to high-volume saltwater disposal into the Ellenburger formation.
PermianIQ tracks 1,142 SWD wells inside the Gardendale SRA, operated by 132 companies. Estimated average capacity utilization is 19.7%. 301 seismic events have been recorded within the SRA boundary in the past 12 months, with a maximum magnitude of 3.4.
TRC reference: TRC Seismicity Response - Gardendale Area
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