PROJECT PORTFOLIO SUMMARY

As at end of 2017-18 financial year

PROJECTS IN PREPARATORY PHASE

Mokolo and Crocodile River Water Augmentation Project – Phase 2A

The project comprises an abstraction weir, pump stations and a 160-km pipeline to transfer water from the Crocodile River near Thabazimbi to the Lephalale area. The project is a prerequisite to enable further development of the Waterberg coal fields, as envisaged in Strategic Infrastructure Project 1 of the Presidential Infrastructure Co-ordinating Commission. It will enable Eskom to run more three flue gas desulphurisation units at the Medupi Power Station, which could not be supplied with water from Mokolo Dam. The units minimise the environmental emissions from the power station and it is a requirement of the World Bank loan, to Eskom, that all units should be functional by 2024. The project will help to unlock the coal resources in the Waterberg region for additional power generation of 4 800 MW, coal supply to some of the Eskom Mpumalanga power stations and coal for export. The project will further provide additional water to Matimba Power Station for future retrofitting of flue gas desulphurisation units, and the Lephalale Municipality.

Acid Mine Drainage Project – Long-term Solution

TCTA is implementing the Acid Mine Drainage Project in two phases. The first phase, the Short-term Intervention, reduces the concentration of metals and neutralises the acid mine drainage. This phase is now complete and TCTA operates the project on behalf of DWS. The second phase, the Long-term Solution, treats the water from the first phase to a potable or industrial water standard for sale to consumers. Implementation of the Long-term Solution will reduce the need for dilution releases from the Vaal Dam and will augment water supplies to the Vaal River System, delaying the need for further augmentation. TCTA has started engagements, on behalf of DWS with potential off-takers for the treated water. The proceeds from the sale of this water will be used to offset the cost of treatment.

Berg River–Voëlvlei Augmentation Scheme

The proposed scheme involves the abstraction of winter water from the Berg River, once the ecological water requirements of the river and the estuary have been met. The scheme comprises a weir and abstraction works with a pump station on the Berg River, with a 6.3-km long pipeline to the Voëlvlei Dam. On 18 May 2017, the Minister of Water and Sanitation directed TCTA to fund and implement the project as part of the Western Cape Water Supply System amid a drought. The urgent need for augmenting the system became evident with the system’s inability to cope with the drought. The project will will increase the supply from Voëlvlei Dam by 23 million m3 per annum in the medium to long term. The TCTA Board approved an interim Project Charter on 28 October 2017 and water delivery is expected by June 2021.

PROJECTS IN CONSTRUCTION PHASE

 

Olifants River Water Resources Development Project – Phase 2C

The project comprises a 40-km distribution pipeline from De Hoop Dam, which feeds the De Hoop Water Treatment Works at Steel Bridge, and a pump station near Steelpoort, where it can interconnect with the Lebalelo Water Users Association infrastructure. Water from the De Hoop Dam is for the mining industry along the eastern limb of the Bushveld Complex as well as for municipal consumers in the Sekhukhune District Municipality.


 
 
 
 
 
 
 
 
 
 
 
 

Off-take Pipeline to the town of Kriel

The project will provide a backup water supply to Kriel when the water supply pipeline from Jericho Dam is out of service. The project comprises construction of a 3-km offtake pipeline from a pipeline to Duvha Power Station and an upgrade of the existing water treatment works. TCTA is undertaking the planning, design, environmental work and providing project management in support of DWS, which is building the works itself. The project has slowed down due to the budgetary constraints faced by DWS. To enable the construction of the pipeline to begin, TCTA has proposed a strategy in which it procures the long-lead items on behalf of DWS. An addendum to the Memorandum of Agreement to implement this strategy has been signed. DWS will transfer the remaining project funds to TCTA to manage the completion of the project during the 2018/19 financial year.

PROJECTS IN ADVISORY PHASE

This section covers projects where a directive has been received but preparatory work is required to make the project bankable, so that funding can be raised, or where insufficient funds are available from the fiscus. During this phase, TCTA acts in an advisory capacity to DWS to resolve these issues. The eventual quantum of funding will impact on the scope of works. There are two projects currently in this phase:

Olifants River Water Resources Development Project – Phase 2B

The project involves the development of bulk raw water distribution infrastructure in the middle Olifants River catchment area, comprising a 70-km pipeline from Flag Boshielo Dam to Pruisen near Mokopane with pump

stations and reservoirs. When completed, the project will provide water for use by both the mines and the Mogalakwena Local Municipality.

uMzimvubu Water Project

The overall objective of the project is to provide water for social needs and to contribute to economic development of the poor and rural north-eastern region of the Eastern Cape Province by leveraging the water resources of the uMzimvubu River catchment to support agriculture, water supply, hydropower, transport and tourism.

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