What's in your water?
Enter your postcode and email to get a free, personalised water quality report — including source, treatment, chemicals, and infrastructure.
Water Quality Report
Current Notices
Active advisories for your area
Your Water Source
Where your drinking water comes from
Treatment Process
How your water is treated before reaching your tap
Chemicals added during treatment. Each is used within regulated limits, but it's worth understanding what's in your water.
The Journey to Your Tap
What happens between the treatment plant and your home
Key Metrics
Summary of important water quality indicators
Measured Against Limits
How key contaminants compare to NZ maximum acceptable values
What About the Water at Your Tap?
Treatment standards apply at the plant — not at your kitchen sink
Your water meets NZ standards when it leaves the treatment plant. But between there and your glass, it travels through kilometres of ageing pipes. Along the way, it can pick up sediment, trace metals from old fittings, and the chlorine added to keep it safe can affect taste and odour.
Activated carbon removes chlorine taste, odour, and common organic compounds.
Reverse osmosis reduces fluoride, heavy metals, and chemical residuals.
Multi-stage filtration catches sediment, rust, and trace metals from old pipes.