What is the storm overflow map telling me?
This map shows all our storm overflow locations across the region, and whether they are currently active. You can also click on a catchment and follow the link to learn more about that area.
You can use this information to help make informed decisions when visiting your favourite river or beach.
How to use the map
- Click on a storm overflow pin or use the search box.
- A pop-up will appear with information about that overflow.
You will see information including:
- Whether the overflow is currently active
- Annual performance data
- Links to our action on storm overflows
On a mobile device, the map is best viewed in full screen in portrait mode.
Storm overflow map
More about storm overflows
We know that as a water company, we have a big part to play in improving our network and reducing the number of discharges. We also know there's lots more work to do.
You can access storm overflow data in several different ways, thanks to our commitment to transparency.
Frequently asked questions
What we're doing
We are reducing our reliance on storm overflows by:
- Reducing the amount of rainwater entering our system
- Slowing the flow of water through the environment
- Increasing our network’s capacity to store and treat flows
Our monitoring teams constantly review data being sent back to us from our EDMs, sewer level monitors, river water quality monitors, flow and pressure monitors and water samples. This constant data-gathering is fundamental to modelling our system and identifying areas for improvement.