Century City Water fact sheet

Century City uses only treated effluent for irrigation

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Date 20 February 2018
Author Tatum Sieni
Contact Email info@centurycity.co.za
Contact Telephone +27 21 552 6889

The original developers of Century City laid a pipeline from Potsdam Waste Water Works to Century City at the start of the development 20 years ago and so Century City is in the enviable position of having access to treated effluent which is used for all irrigation of common areas at Century City and also for each of the different residential and commercial complexes in the precinct.

This treated effluent is surplus to the City’s needs, so Century City is in fact assisting the City and the environment by using it as it would otherwise overflow into the Diep River and then into the sea.

Unlike with borehole water, there are no restrictions limiting the use of treated effluent for irrigation. However, due to the current sensitivities around irrigation, the Century City Property Owners’ Association (CCPOA) – the non-profit company responsible for the day to day running of Century City -  has cut back on its irrigation schedule.  The CCPOA is currently only watering between 6pm and 9am three times a week. However, maintenance work on the sprinklers has to take place during work hours but this is kept to a minimum.

Treated effluent is also being used to flush toilets in the 17 Green Star rated commercial buildings at Century City as well as to run their cooling systems.

The treated effluent supply agreement between the CCPOA and the City of Cape Town, was recently renewed providing Century City rights to additional capacity and the CCPOA has been urging all commercial stakeholders to consider retrofitting their buildings with dual plumbing. A number, including Canal Walk Shopping Centre, are in the process of doing so.

Residents however are by far the greatest users of water and Rabie, as responsible developers, are now installing dual plumbing systems in all new commercial and residential developments going forward so that in future only treated effluent will be used for flushing.

The first residential developments to benefit from this are Palme Vue in the Oasis Luxury Retirement Resort and the Axis residential development under construction on the corner of Sable and Ratanga Roads. In both instances, the developer is absorbing the extra, substantial costs of doing so as price lists had been fixed and apartments had already been sold when they made the decision.

Rabie, the developer of Century City, is also exploring the possibility of taking some of its investment properties, including hotels and the conference centre, completely off the grid.

In addition, Rabie has been and will continue to implement other stringent potable water saving measures to try and stave off Day Zero including ensuring all their on site construction activities use only non-potable water. The only potable water used on site is for welfare purposes such as drinking and the washing of hands.

In terms of ready mix materials such as concrete which is bought to site, some of their suppliers are already operating with only non-potable water and the others will be forced to follow suit to stay in business.