Agri Kultuur September / September 2015 | Page 67

In 2007, Spier installed a pioneering centralised wastewater treatment plant, which is the embodiment of its approach to waste management. It recycles 100% of Spier’s wastewater using only environmentally friendly methodology, and the clean water is then used to irrigate the garden and grounds. It processes up to a million litres of wastewater at any given time. It would take a river 350km to purify what the wastewater treatment plant can do in one day. From 1 July 2014 to 30 April 2015, the treatment plant treated 44938 kL of water. Of this, 22730 kL was reused for irrigation in the North Bank gardens as well in our Wine Tasting ablution facilities. The Spier Hotel has installed watersaving devices such as low-flow taps and showerheads, and uniflush toilet flushing systems. Hotel guests are asked to participate in water reduction practices such as the re-use of bath towels where possible. Water quality and consumption is measured at over 400 sites across Spier to ensure that any recycled water used is in keeping with legislative guidelines. Several processes are in place to ensure that the laundry on Spier reuses all its water up to three times before it is eventually pumped away to the wastewater treatment plant. We are installing various shut-off valves in the main water system to allow for any unexpected repairs not requiring a total bleed of the water system’s contents. Over the past decade, we have carefully replaced plants in our gardens with only indigenous varieties that grow naturally in the Western Cape, specifically the Boland area. Water plays a pivotal role in the initial stages of growing, but once the plant has taken root and is growing, the watering can be adjusted to suit its requirements. When the plant is growing in its natural habitat, normally watering can stop. Some plants might require only two seasons to adjust; others need longer. Rehabilitating our river systems The riparian system running through Spier covers 73.8ha, and consists of the Eerste River and two of its tributaries, the Blaauwklippen and Bonte River. Since 2005, we have been clearing, cleaning and replanting along these rivers. Aliens consume far more water than indigenous plants. By removing the former and replacing them with the latter, we are ensuring a significant reduction in the amount of water our farm requires. Five full time jobs have been created in Spier’s alien clearing projects. The cleared material is chipped or stacked, and then removed to the composting site or used for mulching to preserve water. The contractor also sells back much of the material as firewood to the Spier Hotel. Spier’s nursery has a team of 16 permanent employees dedicated to the propagation and re-planting of indigenous and endemic plant species in areas cleared of alien vegetation. The re-planting has attracted bird and animal life back into the area. This project will continue at pace until a critical balance of diversity has been restored to the farm. Spier’s investment in our nursery