Bunbury Water Hardness & Quality Report (2026)

Aqwest supplies Bunbury and surrounding areas in the South West region of Western Australia with water drawn from groundwater sources, notably the Bunbury East Water Reserve. This water undergoes treatment before distribution to a wide range of customers. The utility manages the supply for residential, commercial, and industrial users across its service territory.

The water originates from aquifers within Western Australia's South West region, characterized by sedimentary formations common to the area's coastal plains. These underground layers are rich in naturally occurring calcium and magnesium minerals. As groundwater travels through the soil and rock, these minerals dissolve, contributing to the water's composition and resulting in a slightly hard quality, typical for groundwater in this locale.

Homeowners in Bunbury might observe slight scale deposits on appliances like kettles and glassware, and on shower screens. While not as severe as in areas with very hard water, dishwashers and water heaters can still accumulate some mineral buildup over time. Simple steps like using liquid soaps, promptly drying wet surfaces, and occasionally descaling kettles with vinegar can help manage these effects. A water softener isn't strictly necessary at this level, but could be considered. Aqwest assures that the water meets all Australian Drinking Water Guidelines and is safe for consumption, consumption, consumption, with ongoing tests confirming compliance.