wow straight overreaction to land sinking, that involve generations of groundwater extraction and mass usage like for agriculture. this is for showering and making some milo in a cup until water treatment plant ready  in a few years.

You didn't include the effect of internet video. Langkawi people with landed house would follow which would increase the amount of underground water drawn. Industrial zone would follow too.

They should never ever take video and bring it to the internet.

With the same price that they drill the well. They could use it to make rain collecting system.

I don't understand why it is ok to practise something which is totally non beneficial especially to children.

Well water has the highest risk of contamination and it take a small bacterial especially e-coli to send the kids and teachers to hospital. In worst case it become death case and create uproar salahan education ministry when it is the decision by the local government allow the ground water usage.

Land shinking will definitely happen when everyone in Langkawi abuse this ground digging.