The Hawke's Bay District Health Board has continued to warn the public not to swim, collect shellfish for consumption or undertake any other water based recreational activities in the area of the Ahuriri Estuary.
The health warning remains in place following last week's heavy rainfall, which overloaded parts of Napier's waste water before flowing into the estuary.
Daily monitoring at water sampling sites in the Ahuriri Estuary had been undertaken by Hawke's Bay Regional Council staff since last Wednesday. Recent sampling show E. coli concentration levels remained elevated, but had improved considerably.
Daily sampling was likely to continue until water samples are at acceptable levels.
Medical Officer of Health Dr Nicholas Jones said levels of bacteria and viruses are raised in the estuary and people should continue to avoid any recreational water activities in this area until sampling shows levels are acceptable.
"These bugs naturally die-off with time. The water quality will improve, however swimming in contaminated water does pose a risk of infections of the stomach, skin, eyes and ears," he said.
Dr Jones said with more rain forecast people should avoid water based recreational activities in all waterways such as lagoons, streams, and rivers for at least three days after heavy rain.
Ahuriri Estuary water warning remains in place
NO SWIMMING: A Hawke's Bay District Health Board health warning remains in place for the Ahuriri Estuary after last week's heavy rainfall. Photo/Paul Taylor.
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