Drinking water quality

We are committed to delivering drinking water which meets the water quality criteria described in the Australian Drinking Water Guidelines and complies with the regulations of the Public Health Act 2005. However, you may sometimes experience localised issues with the quality of your drinking water.

Select one of the common drinking water quality issues for some simple tests you can perform to help identify possible issues.

South East Queensland has some of the highest quality drinking water in the world thanks to our effective water treatment processes.

Water undergoes regular, thorough testing at many points of the treatment and distribution system to make sure that it meets the stringent standards set out in the Australian Drinking Water Guidelines.

Seqwater (the bulk water supplier) is enhancing water treatment processes at its Mount Crosby and North Pine water treatment plants to deliver water quality benefits to communities across Ipswich, Brisbane, Logan, Moreton Bay and parts of the Scenic Rim. 

The enhanced treatment processes, which are expected to be in place in the second half of 2025, will further stabilise water quality including during the summer months when water quality needs to be more closely managed within the South East Queensland climate.   

A key result will be slightly increasing the pH level of water at the two water treatment plants from about 7.8 to about 8.4.  

Water will continue to be delivered within the Australian Drinking Water Guidelines and customers within the supply areas are unlikely to notice a change in their drinking water.

Some customers who treat their water or have specific water chemistry requirements may need to make adjustments to allow for the slight change in pH.  

You can find out more on our online community hub WaterTalk.