LW 104 Second Workings SOP and Notice to Inspector

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.…

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…

Grosvenor Mine Inquiry Key Issue 4 Submission number 2. “Neither a strata collapse or a methane explosion in the goaf was “the mechanism by which an explosive concentration of methane was expelled on to the longwall face.” The major source of the explosive concentration of methane on the Longwall face was methane gas “bubbling out the floor”.

  • April 25, 2021

Please find attached my submission for Key Issue 4 Number 1) What the evidence establishes about the nature and cause of the serious accident at Grosvenor mine on 6 May…