The IronMaori half ironman swim leg at Pandora Pond in Napier was called off today.
The event proceeded as a duathlon.
Following the heavy rain in the past few days, the Hawke's Bay Regional Council water quality monitoring results confirmed that the pond wasn't suitable for swimming.
Samples collected on Thursday indicated high levels of contamination and that the faecal indicator bacteria exceeded the national guideline.
HBRC tested for both E. coli for freshwater and enterococci for saline water.