Swimming water quality map

Water samples are collected weekly from around 100 sites from mid-November to the beginning of March. Outside of this time period this map should only be used as a rough guide.

Sites graded very good, good and fair are considered suitable for contact recreation; however good and fair sites may not be suitable at times - for example, after heavy rainfall. Sites graded poor and very poor are generally considered unsuitable for contact recreation; there is typically notification of this via signage at the site and/or through the media.

Even the cleanest spots can be unsuitable to swim in from time to time when they get contaminated. We recommend you avoid swimming during or shortly after rainfall as urban or agricultural run-off may result in high bacterial counts.

Map Listing

The data on this map is provided by Canterbury maps.