Protecting our Sewer System
Inflow and Infiltration – Protecting Our Sewerage System
Bland Shire Council’s sewerage system is designed to carry wastewater, not stormwater. When rainwater enters the sewer network, it can cause serious problems for both residents and the wider community.
Why is this a problem?
During heavy rainfall, stormwater entering the sewer system (known as inflow and infiltration) can:
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Overload the network’s capacity
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Cause sewage overflows into homes, yards, or streets
Common causes of inflow
Most inflow occurs when:
In many cases, property owners may not realise that their home is contributing to the issue. Previous residents may have installed illegal connections without their knowledge.
What should property owners do?
We encourage all homeowners and occupiers to check their drainage systems by:
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Ensuring all downpipes discharge to the ground or street, not into the sewer
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Inspecting the area around the ORG to make sure stormwater can flow away freely
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Checking during rainfall – if water ponds around the ORG, adjust landscaping or remove obstructions
What is an Overflow Relief Gully (ORG)?
An ORG is a safety feature on your property that acts as a relief point between your home’s plumbing and Council’s sewer system. It helps prevent sewage from overflowing inside your home.
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All wastewater from your laundry, kitchen, bath, and shower flows through the ORG.
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The ORG is usually located outside the house, often near the kitchen or laundry.
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The ORG must always be above ground level to stop stormwater from entering the sewer network.
If stormwater builds up around the ORG because of landscaping or blockages, it can flow into the sewer system and cause overflows.
How you can help
By keeping stormwater out of the sewer, you help:
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Protect your home from potential sewage overflows
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Reduce pressure on Council’s sewerage system
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Support a cleaner and healthier environment for the whole community
