What is one challenge posed by non-perennial water sources for urban development in Arizona?

Non-perennial water sources pose a significant challenge for urban development in Arizona due to their inconsistent and unreliable nature. Unlike perennial water sources, which flow year-round, non-perennial sources are characterized by periodic flow that can vary drastically based on seasonal changes and weather conditions. This unpredictability makes it difficult for urban planners and developers to ensure a consistent water supply for residential, commercial, and industrial needs.

As urban areas continue to grow, especially in arid regions like Arizona, the demand for a reliable water supply becomes critical. The variability of non-perennial sources can lead to situations where water may not be available during crucial times, thereby complicating water management strategies and potentially impacting the sustainability of urban infrastructure. This inherent unreliability necessitates alternative strategies for water sourcing, such as investing in storage solutions or developing supplementary water supply systems, both of which can increase costs and complexity in urban planning.