THE draining and bulldozing of a 1000 megalitre irrigation dam at Springvale Station south west of Cooktown by the Department of Environment and Heritage Protection has made a mockery of preventing sediment runoff onto the Great Barrier Reef.
Millions of litres of dam water is being siphoned from the dam directly into the East Normanby River, creating a muddy plume for many kilometres downstream, dumping thousands of tonnes of sediment onto the reef.
The East Normanby runs into the now dry West Normanby to become the Normanby River which eventually runs into Princess Charlotte Bay.
The 2016 purchase of the former cattle property by EHP drew much criticism from the farming industry when it was discovered flawed sediment runoff data was the basis for its acquisition by the government.
A spokesman for Environment minister Stephen Miles confirmed the dam was being pumped out and millions of litres of valuable water were being discharged into the flowing East Normanby River.
The EHP has claimed the dam could fail, but adjoining landowner and former Cook Shire Mayor Graham Elmes said the dam was sound, properly built, had gone through four wet seasons and had filled easily during its first wet in 2013.
“This dam also acted as a large sediment trap filtering runoff into the river system, but when the walls are bulldozed what will happen to the 30,000 cubic metres of earth that an engineer has measured,” he said.
“It can’t be left in the excavation area because it will simply run off into the river and then Springvale actually will have a sediment runoff problem.”
KAP state leader Robbie Katter said the state government was on a crusade against farmers.
“They are deceiving the public through misinformation and inaccurate data,” Mr Katter said.
“This is a fallacy, again derived from incorrect data and is a waste of viable, developed grazing property, which would be far better managed by a farmer than the state government. This dam should be left intact.”
AgForce north east regional manager Paul Burke was incensed that a government could undertake such “wanton waste”.
“It beggars belief that such a precious commodity could be pumped down the river when this property could have been producing a number of irrigated crops and still breeding cattle,” Mr Burke said.
The EHP spokesman claimed the dam: “did not undergo a full regulatory approvals process as required by state legislation and is therefore unauthorised. To prevent dam failure and any subsequent downstream impacts, including contributions to sediment production within the catchment, the dam will be decommissioned and the land will be rehabilitated,” the spokesman said.
Mr Elmes was adamant the dam had been properly constructed and there was absolutely no chance the dam wall could fail.
“Bulldozing this water asset that cost $400,000 to build is totally irresponsible and an act of environmental vandalism,” Mr Elmes said.
“The government should stop all destructive activities on this property, freehold and subdivide it into four blocks and ballot these blocks for younger farmers.”
