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I recall I engaged in a robust discussion with Mr Niehaus about corrective actions to manage the gas exceedances. We discussed the bleeder road and I suggested he consider putting the roadway on return.” Inspector Brennan Grosvenor Inquiry Statement. Never tendered at Grosvenor Inquiry. Inspector Brennan gave no evidence. Why not?

  • August 3, 2021

The bleeder shaft being intake and its negative effect on LW 104 spontaneous combustion likelihood and goaf fringe location received a lot of attention at the Grosvenor Inquiry. The reason the bleeder…

Grosvenor 29 LW Methane HPI’s in 2019 and 14 in 2020 before the Ignition on May 6th. What happened to May 2018 “It was also acknowledged that continued HPI’s with Methane greater than 2.5% was not satisfactory and the mine must ensure that such HPl’s are minimised, and preferably eliminated going forward.”? SWEET F… ALL!

  • July 30, 2021

It was also acknowledged that continued HPI’s with Methane greater than 2.5% was not satisfactory and the mine must ensure that such HPI’s are minimised, and preferably eliminated going forward.…

“Longwall 104 accumulated 14 methane exceedance HPIs.  Those HPIs on longwall 104 were preceded by another 13 on longwall 103 between 2 July and 7 November 2019, and, further, those 13 HPIs on 103 were themselves preceded by multiple similar events on not only longwall 103 but also 102 and 101.” Grosvenor Inquiry Counsel Assisting Hunter

  • July 27, 2021

There is a noticeable lack of action both from Anglo Grosvenor and Inspectorate to get adequate methane pre-drainage of the Goonyella and surrounding seams over 2016 to 2020. The need…

In addition, the manager, albeit prompted by others, arranged for a risk assessment of the proposed extraction design.  The assessment made scant reference to spontaneous combustion and then only with a low level probability that it could arise from the extraction of bottom coal.  Moreover, the consequence of an occurrence was rated at the lowest safety level, mentioning short panel life and use of continuous gas monitoring as existing safeguards

  • July 21, 2021

This Mining Inquiry comment has a familiar ring  after the Grosvenor Inquiry. Mine Manager being prompted about spontaneous combustion risk assessment. Spontaneous Combustion rated low. Use of continuous gas monitoring…

The meeting was called at the request of Inspector Marlborough to discuss the recent 27 exceedances of 2.5% methane in the LW102 TG. Reconsidering if the bleeder could be made a return. Inspector Marlborough requested a copy of the Ventsim model which was the basis for the Mine decision to discount this option

  • July 19, 2021

A further 22 Methane HPI's occur between the 18th of January and the 19th of March 2018. On Monday 19 March 2018, Inspectors Marlborough, Brown and Gouldstone held a meeting…

Following exerted pressure from the Department and greater recognition by Mines of the hazard of elevated methane levels, substantially more effort and investment had been made into methane drainage capacity and efficiency. This was clearly increasing the amount of gas drained, decreasing operational downtime by early intervention to avoid exceedances rather than cutting to trigger trip events. Most importantly risk was being reduced.

  • July 18, 2021

Between the 6th and 8th of January there were Five (5) methane HPI’s in the Tailgate of LW 102. The first when the Longwall had retreated 29m and the last…