Each quarter we highlight specific case studies from the 2030 WRG online catalogue of case studies. The catalogue showcases best practice solutions to addressing the growing water scarcity challenge. To submit a case or to view our other case studies, see www.waterscarcitysolutions.org.
Basin based approach for groundwater management – Neemrana, Rajasthan, India
SABMiller India partnered with local stakeholders in Alwar to implement a basin-wide groundwater management initiative which ensures the security and sustainability of the local deep aquifer. The deep aquifer is the only reliable source of water supply for the agricultural, industrial and municipal sectors in the semi-arid region. The seasonal monsoon rainfall is the only other source of water supply. A plan was launched to increase groundwater recharge through the construction of six recharge structures. Scheduled training programs for local farmers on water efficiency practices were also implemented to reduce withdrawal for agricultural purposes.This is benefiting more than 4 000 farms on a regular basis. In addition, water efficient agricultural practices were showcased by 136 knowledge farms covering 105 ha in 68 villages. The project was financed by SABMiller India. The initiative has improved the management of the local deep aquifer and the security of supply for the Roches Brewery in Neemrana.
Rustenburg Innovative Financing Arrangements – South Africa
In the last two decades Rustenburg in South Africa has experienced a rapid population growth due to the expansion of mining operations in the region. This significantly increased both municipal and industrial water demands and overwhelmed the capacity of the existing wastewater treatment works. The water services provider, Rustenburg Municipality, was rated as the 3rd most distressed in South Africa and thus unable to raise the finance required to address the problems.To address this challenge, a joint initiative was undertaken between the mines and the municipality to establish a Special Purpose Vehicle (SPV) with a 22-year concession to finance, upgrade and operate water infrastructure. The key to the success of the SPV was the signing of a long term off-take agreement with the mines for the provision of non-potable treated waste water which forms 75% of the SPV’s revenue.The mines previously relied on freshwater that was imported from neighboring catchments. The move to the use of non-potable has enabled the re-allocation of the imported freshwater to the municipality thus increasing the overall freshwater resource that is available in the catchment. Partial improvements in downstream water quality have also been made through better waste water treatment.