MumuZhang Mumu.SWMM.SwmmObjects by: MumuZhang .NET Standard 2.0 This package targets .NET Standard 2.0. The package is compatible with this framework or higher. 1,008 total downloads last updated 10/16/2019 Latest version: 1.0.0 SWMM Stormwater Management Model SwmmObjects is a library used to create, open, edit and save SWMM input files.