Throughout the summer season (November to March), Canterbury Regional Council (Environment Canterbury) monitor more than 100 popular swimming spots around Waitaha/Canterbury.
Each week our team takes water samples at sites to test the water for faecal bacteria (E. coli and enterococci) and check for toxic algae (cyanobacteria) that might be harmful to you, your family and dogs.
Water quality results are available on the Land and Water Aotearoa (LAWA) website. Just search the spot you’re heading to, and it will show you weekly testing results, a long-term grade and any temporary health warnings that apply to the location.
Toxic algae in freshwater
If you are heading to a river or lake to cool off this summer, be sure to check for toxic algae (cyanobacteria) in and around the water.
Toxic algae occur naturally in waterways, but when the amount increases, it blooms. Cyanobacteria blooms can make toxins that can cause serious harm to people and dogs.
The best way you can protect your children and dogs is by knowing what toxic algae looks like and avoiding it. Find out how to identify toxic algae at ecan.org.nz/toxic-algae.
Avoid swimming after rain
Swim sites can also be affected by rainfall which can wash poo or other nasties into our waterways, so it’s important to avoid swimming for 48 hours after it rains.
If you are in doubt about the water quality, it’s best to keep out.
