Water Quality Data

We monitor water quality at 14 stream sites and eight lake/lagoon sites on the main Island.

Samples are collected on a quarterly basis and sent away for laboratory analysis. The data is collated and reported on every year, with more comprehensive analysis undertaken approximately every ten years to look at trends in the data. Below are links to the reports published in the past 10 years:

Below is a list of the 22 sites we monitor and the site ID for each location. You can view the data for each site by searching the relevant site ID in Environment Canterbury’s Water quality data search(external link).