Systems Update

15 March 2024

Systems Update

Majority of Johannesburg Water’s systems have improved over the past week, and most systems have recovered. There are a few systems which are experiencing poor pressure due to airlocks, specifically Blairgowrie. Technical teams are currently on the ground flushing out the network to improve supply pressure and to protect the infrastructure against multiple pipe bursts that can result from airlocks.

Randburg

The overall capacity of the Randburg system has improved significantly over the past three days and is currently supplying normally. Technical teams continue to reconfigure the system for the current challenge, and for potential similar incidents in the future. Alternative water supply continues to be provided to impacted customers.

  • Blairgowrie reservoir: The Blairgowrie reservoir has improved significantly over the past three days and the reservoir is supplying fairly. Parts of Blairgowrie in Randburg are still struggling due to two factors air locks in the network that the Entity’s technical teams are busy on the ground flushing out.
  • Kensington B reservoir and tower: Both the reservoir and tower have improved over the past three days and are stable and supplying normally.
  • Linden 1 reservoir and tower: Over the past three days, the Linden 1 system continues to be stable and is supplying normally.
  • Linden 2 reservoir: The reservoir levels have improved over the past three days and is supplying normally.

Sandton System

Over the past 24 hours, the system has improved and is supplying fairly. Johannesburg Water continues to monitor the improvement and put in place interventions to assist recovery.

  • Illovo reservoir and tower: The reservoir remains low but is supplying fairly. Pumping has resumed and the tower is supplying normally. Poor pressure may be expected in certain parts of the supply zone while the system recovers.
  • Bryanston reservoir and tower: Both the reservoir and tower have improved and are supplying fairly.
  • Linbro Park, Marlboro, and Morningside reservoirs: Overall, the reservoirs are constrained and still recovering. However, the supply is fair and Johannesburg Water is monitoring the systems.

Commando System

There is slight improvement in the overall supply; however, the reservoirs remain low, in particular the Crosby and Hursthill 1 and 2 reservoirs. As part of interventions Hursthill 1 is reconfigured to boost supply, while the Hursthill 2 outlet will be closed overnight. Roaming water tankers are being supplied for high-lying areas.

Berea Reservoir

The reservoir levels made slight improvements but remain low due to high demand and poor supply. Poor pressure is expected in certain parts of the supply zone.

Yeoville Reservoir and Pump Station

The reservoir levels remain stable while the pump station continues to supply normally.

Soweto System

The overall system has remained stable, while Doornkop and Meadowlands reservoirs have improved overnight and are supplying fairly.

Deep South Region

  • Orange Farm, Ennerdale, and Lawley reservoirs – all reservoirs improved overnight but remain low due to high demand. Poor pressure can be expected in the supply zone and no water during peak times when the reservoirs are quickly depleted.
  • Lenasia Hospital Hill and Lenasia High Level reservoirs – Both reservoirs have improved and are supplying fairly. However, due to high demand, poor pressure to no water can be expected during peak times.

The Entity continues to monitor all affected systems. Outlets of the critically low reservoirs will be throttled overnight to build capacity for the next day. Affected areas will be provided with alternative water supply.

List of affected reservoirs: https://www.johannesburgwater.co.za/johannesburg-water- reservoirs-3/

Ends

Issued by: Johannesburg Water Communication and Marketing.