Working with concrete
- 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)
Open this link:
http://www.wasteminz.org.nz/wp-content/uploads/Liquid-and-Hazardous-Waste-Code-Compliant-Operators1.pdf for a list of code compliant operators who will provide you with a waste track receipt and ensure your waste is disposed of correctly.
For general waste disposal enquiries go to the WasteMINZ website: http://www.wasteminz.org.nz/
Or contact your local council: