Narangba and Deception Bay have been named in Unitywater’s latest list of top ten wastewater blockage hotspots, prompting a call for residents to avoid flushing or rinsing unsuitable items.
Background
Unitywater recorded 4,395 wastewater blockages across its service areas of Moreton Bay, Sunshine Coast and Noosa during 2024–25. Almost one quarter of these occurred in just ten suburbs, which included five in Moreton Bay: Caboolture, Redcliffe, Clontarf, Narangba and Deception Bay.
Causes of Blockages
Common causes included items not designed to break down in water, such as wet wipes, paper towels, tissues, nappies, tampons, and cotton buds. These products can combine with fats, oils and food scraps to create larger blockages. The problem extends from household pipes to street mains and pumping systems that move wastewater to treatment plants, increasing maintenance costs and community inconvenience.
Narangba and Deception Bay Among Hotspots
Narangba recorded 89 blockages, while Deception Bay had 82 over the 12-month period. Other Moreton Bay suburbs on the list included Caboolture with 134, Redcliffe with 92, and Clontarf with 90. These figures highlight an ongoing need for community awareness around household waste disposal practices.
Community Impact
Large blockages can cause wastewater to back up through household drains or overflow into streets. These incidents carry public health risks and may also affect the natural environment. Residents are being encouraged to use small bins in bathrooms, wipe pans before washing, and collect cooking oils in containers for disposal in household bins. Simple habits can significantly reduce the likelihood of damage and disruption.
Looking Ahead
Unitywater has highlighted ongoing education campaigns to reduce the impact of non-flushable and non-drainable items. The organisation continues to remind households across Narangba, Deception Bay and other suburbs that only the “three Ps” — pee, poo and paper — should go down the toilet. Continued messaging aims to lower blockages, improve system reliability, and protect waterways in the region.
Published 27-Aug-2025