30/3/22: Moranbah (Queensland) Cyanobacteria 0.6mm3L
Cyanobacteria (blue-green algae) are a type of microscopic, algae-like bacteria which inhabit freshwater, coastal and marine waters.
Cyanobacteria photosynthesise like plants and have similar requirements for sunlight, nutrients and carbon dioxide to grow and produce oxygen. There are many different varieties of cyanobacteria. While often a green or blue-green colour, they can also be white, brown, blue, yellow-brown, or red.
If conditions are suitable, cyanobacteria can increase to excessive levels and form visible ‘blooms’ which can lead to poor water quality and the potential for toxicity.
Cyanobacteria can cause environmental problems, disrupt drinking water supplies, recreational activities and water-dependent industries, and pose a risk to livestock, wildlife and human health.
https://www.waterquality.gov.au/issues/blue-green-algae
Moranbah (Queensland) – Turbidity
2016/17: Moranbah (Queensland) – Turbidity 5.6 NTU (Maximum detection during year), 0.99NTU av.
2014/15: Moranbah (Queensland) – Turbidity 6.19 NTU (Maximum detection during year)
Chlorine-resistant pathogen reduction: Where filtration alone is used as the water treatment process to address identified risks from Cryptosporidium and Giardia, it is essential that filtration is optimised and consequently the target for the turbidity of water leaving individual filters should be less than 0.2 NTU, and should not exceed 0.5 NTU at any time
Disinfection: A turbidity of less than 1 NTU is desirable at the time of disinfection with chlorine unless a higher value can be validated in a specific context.
Aesthetic: Based on aesthetic considerations, the turbidity should not exceed 5 NTU at the
consumer’s tap