Fish River dosing plant
Potassium permanganate
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Reminder note for raw (untreated) water customers only:
Water supplied by the Fish River pipeline is not intended for drinking, cooking, washing clothes etc. This water is still safe for stock and flushing toilets. If you have any concerns, WaterNSW recommends that you contact the Nepean Blue Mountains Local Health Department on (02) 4734 2000 or by email for any further advice.
WaterNSW is installing new water treatment equipment to reduce potential discoloured drinking water by reducing manganese levels caused by seasonal changes in raw water from Oberon Dam.
The Duckmaloi Water Filtration Plant already removes some manganese and adding potassium permanganate to the raw water will improve the manganese removal during the water treatment process.
WaterNSW are installing a Potassium Permanganate Dosing Plant at Oberon Pumping Station. Potassium permanganate is commonly used in water treatment plant processes and will be dosed into the water supply in accordance with current guidelines.
In conjunction with the Potassium Permanganate dosing, WaterNSW will also trial Aluminium Chlorohydrate (ACH) - (another commonly used chemical in water treatment) to check if this further improves drinking water quality supplied to treated water customers. This again will be dosed in line with current guidelines.
The dosing will mainly operate during summer and autumn when the manganese levels are higher. WaterNSW will continue to update the community via our website. We expect the plant to be operational by April 2024.
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WaterNSW acknowledges the traditional custodians of the lands and waters on which we work and pay our respects to all elders past, present and emerging. Learn more