Changes

Open reservoirs can be used to capture rainwater runoff for agriculture or domestic use and for recharging an aquifer. Oftentimes these natural reservoirs are the cheapest option for water storage. However, modifications can be made to increase volumes or gain access to the water. Small dams can be built or linings (to prevent infiltration) can be added. Diversions can also be created to send water to crops or nearby villages. For additional expense, [[underground tank]]s can be built in a runoff basin, which can be made with an increased depth to width ratio (more deep than wide), which means less evaporation losses overall.

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