Use this calculator to estimate the amount of water that is returning to your pond from irrigation and
rainfall events. There are a number of factors such as rainfall intensity, soil compaction, how wet or dry
the soils are etc. that will impact
runoff. This tool is meant to provide you with a rough estimate of how much water is returning to your pond.
Estimate Contributing Area
Map to sketch for Area
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Enter dimensions
Enter average width and length for more rectangular area