Welcome to VO OTTHYMO v6.0 (VO6), the sixth version of the INTERHYMO-OTTHYMO hydrologic model simulation software package designed for Microsoft Windows OS.

OTTHYMO is a successful hydrologic management model that has been used for various simulation analyses such as: Watershed Studies, Sub-watershed Studies, Master Drainage Plans, Functional Stormwater Management Plans, Site Plans, and Stormwater Management Pond Designs.