Historically, cities have secured water from fresh water sources such as surface water (lakes, reservoirs, and rivers) or groundwater (wells). Population growth and repeated droughts have increased demand for alternative sources of fresh water and novel solutions to the problem of scarce water. Several potential alternatives for managing and securing water for municipalities include export/transport of water, water conservation and reuse, and desalination. Each of these approaches and their attendant challenges will be discussed briefly below. No single solution is likely to be sufficient-there is no magic bullet. Instead, municipal water security will depend on attacking the problem of supply from multiple fronts and confronting the challenging legal issues that arise.