14 December 2023 – 14:45
Systems Update
Rabie Ridge reservoir and tower
The Rabie Ridge reservoir levels have improved since Wednesday, but the reservoir is still experiencing high demand and low water levels. The system continues to supply at 30% while the tower remains on bypass mode. Johannesburg Water will monitor the system.
Alexander Park reservoir
The Alexander Park reservoir made slight improvements overnight and the supply is normal. However, there is high demand on the system. The outlet will be closed overnight to build capacity for Friday.
Eagles Nest reservoir
Although the Eagles Nest reservoir made some gains overnight, the system is still critically low due to increasing demand and poor supply pressure. Low pressure is expected in the supply zone, especially high-lying areas; however, the system has been reconfigured to boost supply.
Sandton system update
For the past three days, most of the Sandton systems have been making steady improvement, which is the result of the daily mitigation strategies Johannesburg Water teams have implemented. Most of the reservoirs are supplying normally and the Entity will continue monitoring the systems. As a mitigation strategy the following reservoirs will be throttled to 90% overnight to retain water and build capacity. The overnight throttling is scheduled to begin at 21:00 and conclude in the morning at 04:00. Some areas may still encounter low water pressure while the system recovers.
• Illovo reservoir
• Bryanston reservoir
• Morningside reservoir
Soweto Systems
The Soweto systems continue to maintain stability overnight and throughout the day, however, they will be affected by overnight throttling (reducing pressure and flow). The bulk supply remains restricted as a Water Demand management strategy. The Zondi reservoir supply is currently at 60%, while the Power Park reservoir supply is at 50%. Areas fed by the Zondi reservoir, Doornkop reservoir and Power Park reservoir are affected by low pressure, while high-lying areas are affected by no water. Bramfischerville is supplying at 50%, and poor pressure to no water is expected most parts of the area. Customers in phases 7 and 9 will experience poor pressure to no water. Certain areas supplied by the Protea Glen tower and direct feeds are experiencing poor pressure to no water.
Commando System
• Brixton reservoir: The reservoir continues to be stable and is supplying normally.
• Brixton tower: The tower levels dropped slightly overnight. It is however, supplying normally.
• Hursthill 1 and 2 reservoirs: Hursthill 1 made some gains overnight, while Hursthill 2 remained the same. Both reservoir levels are low and poor pressure to no water is expected in the supply zones. The outlets to both reservoirs are fully opened. Hursthill 1 reservoir has been configured to boost supply while Hursthill reservoir will be closed overnight to build capacity for tomorrow.
• Crosby reservoir: The reservoir made slight improvements overnight, however, it continues to be low but supplying normally.
The following reservoirs will either be closed or throttled to 90% overnight to retain water and build capacity:
• Soweto: Freedom Park, Doornkop West, Power Park, Orlando East, and Zondi
• Commando: Brixton, Hursthill 2
• Crown Gardens
• Alexandra Park (closed)
• Midrand: Rabie Ridge, Grand Central, President Park, Erand, and Diepsloot
The Randjieslaagte and Berea reservoirs may be throttled overnight if necessary due to high demand.
Customers supplied by these reservoirs may experience poor pressure to no flow. Alternative water supply has been arranged through water tankers for the affected areas. Johannesburg Water continues to monitor the above systems.
Residents are requested to observe level-1 water restrictions which are implemented from 1 September to 31 March. These restrictions prohibit the use of hosepipes to water gardens, wash cars, clean driveways, as well as fill up swimming pools and water features between 06:00 and 18:00. Instead, the use of greywater is encouraged.
Ends
Issued by Johannesburg Water Communication and Marketing