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*[[pretreatment| pre-treatment devices]] to retain coarse sediment, trash, debris and floatables,
*[[pretreatment| pre-treatment devices]] to retain coarse sediment, trash, debris and floatables,
*perforated [[pipes]] embedded in washed gravel connected to maintenance holes and catch basins,
*perforated [[pipes]] embedded in washed gravel connected to maintenance holes and catch basins,
−*a gently sloping granular [[reservoir aggregate| storage reservoir]] below the perforated pipe that may include trench plugs.
+*a gently sloping granular [[reservoir aggregate| storage reservoir]] below the perforated pipe.
'''Optional components include:'''
'''Optional components include:'''
*[[Geotextile]] to prevent migration of fines into the reservoir;
*[[Geotextile]] to prevent migration of fines into the reservoir;
+*Trench plugs to help disperse stormwater throughout the trench and enhance infiltration; and
*Perforated maintenance hole or catch basin risers.
*Perforated maintenance hole or catch basin risers.