Subject: Detention Pond Infiltration and Evaporation Losses
You can also add a storage pond infiltration and surface evaporation losses to the pond. The surface evaporation is added to the infiltration (computed from the green ampt parameters); a storage volume summary listing the average and maximum volume and the percent loss from the combined infiltration and evaporation from the ponds. The pond infiltration loss during a time step is basd on the areal weighed average depth, the Green Ampt infiltration and the Area of the pond.
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| Figure 1. Pond Infiltration Loss Assumptions |
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| Figure 2. SWMM 5 Storage Summary listing Evaporation |
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| Figure 3. Infiltration Pond Data is entered in the Property Sheet for the Node. |
