Battle for Berrima has pushed for answers about the Independent Planning Commission's inquiry into Hume Coal's mine application.
The group said it was "unacceptable there has been no word from the Minister for Planning and Public Spaces Rob Stokes" about "lengthy delays" with the process.
Battle For Berrima president Hugh Farrimond said the previous minister for planning Anthony Roberts initially imposed a two-month deadline on the IPC to reach its conclusion on the project.
This was then extended to three months, before being interceded by the NSW election.
"There has been no word from Rob Stokes as to whether he intends imposing a new deadline or what the process going forward will look like," Mr Farrimond said.
"This is unacceptable, given that the community has been fighting Hume Coal's proposal for over nine years.
"The IPC has asked for more information from Hume Coal and the Department of Planning & Environment.
"Battle for Berrima wants to know how long will this take and whether the community will be given the opportunity to scrutinise any new information arising from these requests."
Mr Farrimond said he understood "the IPC has serious questions concerning 'make good' legislation".
'We understand the IPC has serious questions concerning "make good" legislation.
"We share those concerns and want to know exactly how Hume Coal would work to restore landholders' bore water supplies, in the unlikely event that mine were to be approved," he said.
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"The impacts on farmers' bores are predicted to be massive and would continue to affect water security for decades and decades to come."
Battle for Berrima also said the community "deserves a clear explanation about the NSW Government's hastily announced review of the IPC".
'We want to know whether this review affects the current proposal the IPC is considering in relation to Hume Coal or only future IPC assessments," Mr Farrimond said.
"Will our community be able to participate in this review process, considering we concluded three days of IPC hearings in February this year?
"Will the Government require new IPC hearings once this review is completed? And does the Government plan to fundamentally change the decision-making process of the IPC regarding the Hume Coal project?"
Battle for Berrima has confirmed a meeting with Minister Stokes on November 13 and intends canvassing these questions as well as other concerns raised by the community.