UPDATE: Cascading streams tumbling over Purlingbrook Falls are the kind of thing money can't buy - and Coca-Cola Amital doesn't have to.

The international soft drink giant is under fire from locals in the tiny Gold Coast community of Springbrook over its water-pumping operation to produce Mount Franklin spring water.

Coca-Cola has a lease to extract water from groundwater at Springbrook - and they don't have to pay a cent.

Under the terms of the agreement, Coca-Cola are restricted to operating from 8.30am-5pm six days a week and can take two tanker loads each day - but there is no limit on how much water they are allowed to take per visit.

Acting Gold Coast Mayor Donna Gates hinted that it might be time to renegotiate the terms of Coca-Cola's arrangement on Springbrook.

"It's a very old approval and it probably needs to be updated," she said.

"It's possible that a new material change of use application might be needed to alter their operations up there."

The council's development compliance department is now investigating complaints by Springbrook residents about Coca-Cola's operations, but Councillor Gates said there was no evidence the company was breaching its obligations.

media_camera Purling Brook Falls

EARLIER: The world's biggest soft drink company is embroiled in a water war affecting one of our most famous national parks.

Residents of Springbrook are in a fizz over Coca-Cola Amatil's water pumping operation to produce their Mount Franklin spring water.

The matter is now under investigation by Gold Coast City Council's development compliance department.

Coke has had approval for the operation since 2006, but residents say Springbrook's creeks and streams have never looked worse.

Do you think Coca-Cola's pumping operation should be downsized or stopped? Let us know in the comments section below

Even after recent rain, the iconic Purling Brook Falls looked more like a trickle yesterday, while other nearby watercourses have gone from cascading creeks to stagnant swamps as Coca-Cola continues to extract thousands of litres of water from the region every day.

Ceris Ash has lived on the mountain for more than a decade and said immediate action was needed.

"They are threatening the world heritage values of Springbrook National Park," she said.

"They are taking their water out of the ground, but that all still feeds into the creeks and streams that go through the national park and down to the coast. We have an incredibly sensitive ecosystem here with rare animals and trees found nowhere else on the planet."

The national park made headlines last month with the discovery of a previously unknown mammal species named the black-tailed antechinus, while the world's last remaining Eucryphia Jinskii trees are found only in Springbrook National Park.

media_camera Rainforest scenes from Springbrook National Park in the Gold Coast Hinterland. Purling Brook Falls.

A Coca-Cola spokeswoman said the Springbrook operation followed strict guidelines.

"CCA extracts groundwater from its site in the Springbrook area and is compliant with conditions set by the Gold Coast City Council," she said.

"We are just one of 50 or more bore sites in the area, and we support a sustainable water plan for the whole area which must include all water users."

Area councillor Glenn Tozer confirmed residents had complained about the situation and the department of development compliance was investigating whether the company was breaching its commitments.