Some water quality sample sites showing short-term improvements, whilst others are still falling below safe standards!
The results of the water quality sampling taken on 17th December in Doubtless Bay suggests the improved water quality at some of the sampling sites is potentially linked to the long dry period Doubtless Bay is currently experiencing. However, some sites are still recording high levels of contamination (click here to see the results map).
Five of the seven sampling sites have recorded lower levels of bacterial e-coli in December compared to previous months. This improvement has been associated to the long dry period that has resulted in reduced levels of overland water flow carrying pollutants into waterways.
Low rainfall = Low runoff = short-term improved water quality
However, any significant rainfall is likely to result in increased overland flows of pollutants into rivers and streams, and consequently water quality in the waterways of Doubtless Bay is expected to decline.
The water quality samples taken from Kanekane Stream at Coopers Beach Creek recreational area are still showing alarming levels of bacterial e-coli. Although our sample recorded an e-coli level just below the poorest water grade, sampling taken by Northland Regional Council has recorded even higher e-coli counts. As a result, we have been advised that warning signage is being erected at this popular recreational area.
We do hope we have not scared you away from the water over this holiday period. With long dry periods, water quality is generally good and can be enjoyed if careful. However, water quality is generally worse after heavy rainfall, or in waterways with low/sluggish flow where water can stagnate.
We wish you all a safe holiday period!
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