Hi all:

I am working on a SWMM model developed and calibrated using XP-SWMM v8.01. We have since upgraded to v8.52.

The v8.52 node stages are up to 1.75 feet different than the v8.01 stages. While upgrades usually contain bug fixes and user-interface enhancements, we were surprised to see such a difference in stage results. Has anyone else run into this?

Thanks for your help,

Jeremy McBryan
jcmcbryan@pbsj.com