An important difference between Capacity d/D and Surcharge d/D in InfoSWMM Posted on April 8, 2018April 8, 2018 By Storm/Sewer Modeler with a 45 yr association with EPASWMM. Now at Autodesk supporting InfoWorks ICM_SWMM Founder http://robertdickinson.org, Chair/TAC at http://CIMM.ORG No Comments on An important difference between Capacity d/D and Surcharge d/D in InfoSWMM An important difference between Capacity d/D and Surcharge d/D in InfoSWMM, Capacity is based on Area and Surcharge d/D is based on Depth Share this:ShareTwitterLinkedInEmailSkypePrintFacebook Related #INFOSWMM, InfoSWMM, InfoSWMM_SA Tags:An important difference between Capacity d/D and Surcharge d/D in InfoSWMM