Category Archives: Well Blowout

May 2011 to March 2012, Illegal CSG water disposal by Metgasco at Casino sewrage station

Key Information:
Incident Type: Illegal waste water disposal
Date: May 2011 to March 2012
Location: Casino, Clarence Moreton Basin, NSW
Company: Metgasco

Description of Incident:

Lock the Gate Northern Rivers received confirmation from the NSW Environment Protection Authority (EPA) that Metgasco have been disposing of wastewater from its coal seam gas exploration activities illegally at the Casino Sewage Treatment Plant (STP) for almost a year up to March 2012.

This wastewater disposal practice represented a violation of both the gas company’s water management plan as well as the Richmond Valley Council’s STP license and both parties have been told by the EPA to stop immediately. A total of 1.36 million litres of produced coal seam gas water had been disposed of at the STP between May 2011 and March 2012.

This information is contained in a letter from the EPA to lawyers acting for Lock the Gate Northern Rivers which was received in early June 2012.

See the Lock the Gate Northern Rivers Media Release.

Initial Media:
11 June, SMH: Coal seam effluent salts sewage

Follow up information:


5/6 May 2012, Well Blowout at a QGC rig in the Surat Basin

Key Information:
Incident Type: Well Blowout
Date: 5/6 May 2012
Location: Chinchilla, Surat Basin, Qld
Company: Queensland Gas Company (QGC)

Description of Incident:
During drilling at the Argyle 162 well 25km southwest of Chinchilla as gas blowout occurred forcing QGC to suspend drilling operations and implement at 150m exclusion zone around the rig. At the time of the incident the company acknowledged it could take days to stem the leaking gas.

Initial Media:
6 May, Courier Mail: Gas leak forces suspension at Queensland Gas Company rig at Surat Basin
6 May, Brisbane Times: Coal seam gas leak may take days to fix

Follow up information:
8 May, QGC Media Release: Gas field leak stopped