Working with concrete

If in doubt Stop and Shout! Take the time to plan and use the right system and ensure the wash water/waste is contained and/or removed correctly.
  • Concrete waste water is toxic. If it reaches streams and waterways, it will kill fish and plant life. Dilution is not an option. It would take 1 million litres of water to dilute 1 litre of alkaline wastewater back to a PH of 6-7.
  • Check the weather. When possible choose a dry day.

Read the brochure for more information:

Concrete Washwater (PDF: 2.5 MB)

Exposed aggregate driveways (PDF: 1.9 MB)


Useful links:

For general waste disposal enquiries go to the WasteMINZ website.

Contact your local council:

Christchurch City Council

Ashburton District Council

Hurunui District Council

Kaikoura District Council

Mackenzie District Council

Selwyn District Council

Timaru District Council

Waimakariri District Council

Waimate District Council

Waitaki District Council