The Lake Cathie estuarine system is in 'imminent risk of acidification if the drought continues', according to a new study compiled by Port Macquarie Hastings-Council and NSW National Parks and Wildlife Service.
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The results of the study were discussed at a meeting between government stakeholders on Monday, July 29.
The meeting brought together state and local government agencies, and representatives who play a role in the management of the estuarine system.
The group came together to determine what immediate and ongoing management actions might be required to address the ailing waterway.
A spokesperson from Port Macquarie-Hastings Council said the new study also confirmed opening the lake entrance, especially during drought, causes stress to the entire ecosystem.
The Camden Haven Courier has questioned council about the impact acidification would have on the lake. A council spokesperson said they would respond after following up with the appropriate stakeholders.
Read more: NSW DPI comments on Lake Cathie fish kills
Council was also given the opportunity to speak with the Minister for Energy and Environment Matt Kean, with the Local Member for Port Macquarie Leslie Williams.
"In the meeting we outlined the issues affecting the Lake Cathie/Lake Innes estuarine system, and highlighted the urgency for action," Mayor Peta Pinson said.
"Minister Keen was very receptive to assisting in ensuring that there is timely action."
Member for Port Macquarie, Leslie Williams said she appreciated the input of all stakeholders and their willingness to work together for the betterment of the lake system.
"By working together with one focus, we will achieve a far greater result for the intricate lake system," she said.
"It needs a great deal of nurturing before it can be returned to its former glory."
Mayor Peta Pinson said it was great to see local and state government working together.
"With the experience and knowledge of the stakeholders at the meeting, I am confident that solutions can be found for the long-term health of our lake system.
"In its current state and with the ongoing drought, it is important that we take some action with urgency."
Revive Lake Cathie President Danielle Maltman said she is thankful for the attendance of Mrs Williams, council, Cr Pinson, general manager Craig Swift-McNair and all stakeholders at the meeting.
"It is a fantastic outcome that council acknowledges that our estuarine system needs to be considered as a whole," she said.
A spokesperson from council said it is endevouring to host a community information event in the near future.
This will include a panel of all the major stakeholders and experts, who will be able to answer questions from the community.
The panel will also explain the impacts of the current drought and water conditions, as well as the new acid sulphate study results.
For further information on the management of the Lake Cathie/Lake Innes estuarine system visit pmhc.nsw.gov.au/lake-cathie