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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…

Procedural non compliance during shotfiring activities “popping” rocks on Longwall Face. At the time of the shot being fired an ERZC was  on return side. The ICAM investigation IN. 160558 was discussed, there were a number of items requiring review due to lack of detail or inappropriate actions recommended.

  • July 13, 2021

Before I return to the Mines Inspectorate MRE's and Methane this MRE gives another insight into how Grosvenor Mines Mandated SHMS Procedures for Specific regulations are followed. MRE - Grosvenor…