SU Sump Depths in ORD

When placing features in SU in ORD, the feature definition carries a property for a desired sump depth of 2 Feet. When the link is placed some show up in the profile view with No sump, some are 1 foot and occasionally some show up correctly. What drives how the sump depth shows up in the profile view for SU? if it is not in the attached feature properties where should I look?