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--- bioretention_device [2025/02/11 12:15] – megan_duffy
+++ bioretention_device [2025/09/30 14:49] (current) – admin
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 ====== Bioretention Device ======
+:!: The current version of WinSLAMM (10.5.0) overestimates evapotranspiration (ET) volume. Until a fix is implemented, ET may not be turned on in the model. :!:
 Bioretention devices are infiltration devices used for the treatment and infiltration of stormwater runoff.  A bioretention basin is made up of several layers, which treat stormwater as it is filtered.  These basins remove pollutants and reduce runoff volume and temperature.  Bioretention basins can be used as a stand-alone method of stormwater treatment or in conjunction with other stormwater management practices.
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 =====Design=====
 For complete design of bioretention basins, please refer to DNR Standard 1004.  Bioretention basins should be designed with careful consideration given to each of the following key components: drainage area and pretreatment, ponding zone, vegetation and mulch layer, engineered soil layer, storage layer, underdrain, and sand/native soil interface layer.
+{{ :wiki:images:schematics:bioretention_basin.png?1000 |}}
 ====Drainage Area And Pretreatment====