"For sites with more than 5 acres disturbed at one time, or if a channel originates in the disturbed area, one or more sedimentation basins shall be constructed." (Reference: Section 290-7.2.e-4 of the City Code of Ordinances).
Earthen embankments constructed as parts of sediment basins shall be designed and constructed to address seepage and saturation. Please refer to WDNR Technical Standard 1064 (Sediment Basin)
for specific embankment design criteria.
In order to reduce earthmoving costs, sediment basins may be utilized as permanent wet detention basins to address post-construction storm water quality requirements. At the end of the construction phase, all deposits must be removed from the sediment basin in order for it to be accepted as a wet detention basin.
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