Tracing the source of a Hagley Park oil discharge and preventing future spills
Something’s not quite right in an urban waterway running through Hagley Park. In Addington Brook, Christchurch, a small oil discharge has been found, and we're asking the local community to check their properties for leaks and report spills that you see.
Last month, our incident response team discovered a small oily discharge in Addington Brook, visible from the southwest corner of Hagley Park. Testing confirmed the substance was Total Petroleum Hydrocarbons – the same stuff found in engine oil. Right now, a boom and oil-absorbing pads are in place to contain discharge and protect the environment.
This isn’t the first time we’ve seen this kind of pollution in Addington Brook. While no wildlife was harmed this time, oily discharges can seriously impact ducks, fish, and other aquatic life.
Just last week, a little blue penguin was seen swimming in the Avon River, which is linked to the Brook. This is why finding the source and stopping future spills is critical.
The shiny, oily discharge in Addington Brook
What we know so far
- Our team has been on the ground, inspecting sites and installing containment measures.
- A boom and oil-absorbing pads are in place, and warning signs advise people and pets to avoid the area while cleanup efforts continue.
- A faint oily sheen is still visible in some spots.
- The leak could be coming from a private property, hidden from view and flowing through stormwater drains straight into the brook.
- Stormwater isn’t treated and anything that goes down those drains ends up in our waterways.
How you can help identify the oil source
Because the source of the oil may be coming from a nearby private property, residents in the area play a crucial role in helping us find and stop the leak.
Check your property
If you live near Hagley Park South – around areas including Rex Street, Blenheim Road, Lincoln Road, Deans Avenue and Moorhouse Avenue – please check your garages and sheds for:
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Leaking oil drums or cans
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Spills near stormwater drains
If you find anything leaking and are unsure how to dispose of oil or chemicals, please call our advisory team on 0800 324 636 for guidance.
See something? Report it
If you spot oil, chemicals, or unsafe storage in the South Hagley area:
- Call 0800 765 588 to report an environmental incident
- Or use the Snap, Send, Solve app
Map of Addington Brook (in blue) and the catchment area of nearby suburbs (in red)
Scott Ries, team leader compliance urban said “simple steps like checking garages for leaky oil containers and looking out for oil drums near waterways or stormwater drains will help prevent future discharge events like this one.
“If you see any chemicals being discharged around Addington Brook or would like advice on how to dispose of your old oil containers, get in touch with us.”
Why it matters
Urban waterways are complex – underground pipes, mixed land uses, and hidden sources make tracking pollution tough. Every tip helps us protect the health of Addington Brook and the wildlife that call it home.
Reminder: Dumping chemicals into waterways is illegal and can lead to fines or prosecution.
Warning signs advise people and pets to avoid the area while clean up efforts continue
Help protect our rivers and streams: Find more stormwater tips and pollution prevention advice.