The need to build resilience into current available water resources is required for sustained living. Adopting a Managed Aquifer Recharge (MAR) approach for conjunctive water use might be one of many options available to obtain a sustained potable water supply and requires detailed planning to be successfully integrated with current water supply system(s). This presentation highlights some of the planning challenges faced in a South African context, based on a strategy to diversify and augment potable water resources, to be informed by policy; and be designed to include reclamation of storm water and treated effluent.