© 2025 The Reservoir. All rights reserved.
This site is maintained by Rand Water in support of the Catchment Management Forums of the Upper Vaal Water Management Area.
Welcome to The Reservoir
Water resource information centre for the Catchment Management Forums of the Upper Vaal Water Management Area
About
The Reservoir website is a water resource information centre for the catchment forums that operate within the Vaal Barrage and Vaal Dam catchments of the Upper Vaal Water Management Area (WMA). This website has been developed to specifically facilitate communication and dissemination of information between stakeholders and role-players participating within all catchment forums of the Upper Vaal WMA.
Copyright
Copyright of all documents and information available on this website vests in those organisations who have contributed such information. The whole, any part or extract thereof may not be reproduced in any manner or form, published or adapted provided that full acknowledgement of any part thereof is given to those organisations who have contributed such documents and information.
Disclaimer
Any organisation associated with this website, shall bear no responsibility and disclaim all liability for any loss or damage (either directly or indirectly) attributable to the use of or reliance upon information or links provided through this website.
Information
A variety of documents for download and videos to watch are available in this section.
Documents are made available in Adobe PDF format.
Shortcuts
Quick access to water quality and quantity information
Daily flow graph and table information
Daily hydrology of the Vaal Dam and Vaal Barrage Reservoir as provided by Rand Water and the Dept. Water and Sanitation.
Get the Mobi App here.
Current
Information is generally made available after 10am each day (network availability dependent).
January 2025
Vaal Barrage Reservoir weekly water quality
Keep up to date with the weekly water quality report of the Vaal Barrage Reservoir for E.coli, blue green algae and algal pigments.
Current
Weekly Upper Vaal River WMA dam levels
Check on dam levels in the Upper Vaal WMA from Woodstock to Bloemhof dams with data available weekly on a Friday.
Weekly Drinking Water Consumption
Know what the weekly drinking water consumption is in the three major metros of Ekurhuleni, Johannesburg and Tshwane in Gauteng.
Stakeholder Forums
Catchment Management Forums and other structures of the Upper Vaal Water Management Area
Vaal Barrage Catchment Forums
The Vaal Barrage Catchment covers an area of approximately 9,000 square kilometers. It stretches from Roodepoort in the west to Springs in the east, and from the Johannesburg CBD in the north to the Vaal River at Vereeniging and Vanderbijlpark in the south.
Vaal Dam Catchment Forums
The Vaal Dam Catchment covers an area of approximately 52,000 square kilometers. It stretches from Heilbron in the west to Ermelo in the east, and from the Vaal Dam in the north to Bethlehem and Harrismith in the south.
Other Management Structures
The Upper Vaal Reference Group and the Vaal Barrage Catchment Executive Committee (VBCEC) are no longer operational as those management functions provided intially by these two structures will now be expected to fall under the auspices of the Vaal-Orange Catchment Management Agency (CMA).