Water quality analysis
The health and safety of the public is the primary goal of Saint John Water and that is why we test more parameters and more frequently than required by law. We take water samples from the raw water source, throughout the treatment process, and from different locations in the distribution system. You can find more data on water quality in our annual drinking water reports and in water quality reports.
Water treatment
According to the source, Saint John Water uses different treatment techniques. Groundwater is an excellent source of drinking water, because Mother Nature has carried out all the necessary treatments. However, since these aquifers transmit water through a network of pipes, sodium hypochlorite is used as a means of disinfection. Orthophosphate is also used in the South Bay wellfield treatment system to manage corrosion in the distribution system.
Water from the Loch Lomond watershed is pretreated at the Lake Latimer pretreatment facility and then subjected to a comprehensive modern treatment including coagulation and flocculation, dissolved air flotation, filtration and disinfection. Orthophosphate is also used to manage corrosion in the distribution network.
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