Heavy rainfall and flood events cause agricultural pollutants and other run off to enter the Logan River. This can result in the Beaudesert Water Treatment Plant shutting down as it cannot effectively treat the raw water.
All water produced by the Beaudesert Water Treatment Plant is constantly tested to ensure it meets Australian Drinking Water Quality Guidelines. When the raw water quality is too poor for the plant to meet those standards, the plant is shut down temporarily until the raw water quality improves. Depending on the duration of the shut down, treated water may be supplied to Beaudesert from other areas via water tanker. Current upgrades to treatment process mean that it will be more capable of treating poor raw water qualities, reducing the need for temporary shut downs and improving supply security in the short term.