Mine Subsidence and Flooding in Newcastle Mayfield Mines

For over 15 years, we experienced mine subsidence and mine water flooding from abandoned mines in Mayfield, Newcastle. The 2 problems;

1) Mine Subsidence under our properties from the Spennymore Colliery.
2) Mine water flooding in our properties caused by Spennymore Colliery and Ferndale Colliery.

Mine subsidence is the responsibility of Subsidence Advisory NSW. Mine water flooding work is allocated to Legacy Mines NSW. The problems have been transferred amongst these offices.

For over a decade, Subsidence Advisory has told us there are no mine workings under our buildings and the subsidence damage is not mine related. Whilst Legacy Mines believed the 20,000,000 litres of mine water running into our properties each year were not from legacy mining.

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The Merry Go Round

Water starts flowing into one building, then all buildings. Our buildings have subsided. We contact Hunter Water, Newcastle Council, Subsidence Advisory, Legacy Mines, and the NSW Government who all told us they are not responsible for the current problems.


Evidence collected suggests that poor mining practices created a unique situation where all abandoned mines in the area are interconnected and full of water, from Mounter Street to Litchfield Park. These old mines are often shallow in depth, and as they subside, they cause damage to infrastructure with water from broken stormwater and Hunter Water pipes feeding extra water in the mine system which then flows into our properties.

Dye placed in stormwater pipes found its way into our property, when broken water mains opposite our properties were fixed, water significantly stopped flowing into our properties. Each time we showed the information to the government agencies, they further restricted information to us or avoided us completely.

We have collapsed walls, twisted door jams, broken windows, subsidence in slabs, and much more. Subsidence Advisory tell us it’s not mine related and that the properties are not undermined and to work with Legacy Mines who tell us they have low to nil priority to help us.

Over time, all these departments have blamed each other whilst avoiding having a “round table meeting” to address the situation.

The facts are that the NSW government manage the abandoned mine network, and various government agencies, acknowledge that mine subsidence has occurred, and mine water is flooding our buildings caused by broken government assets. No matter what department is being blamed, all are owned by the NSW government.....15+ years of merry-go-round.


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