The input parameters for each method are listed below.

• Loss method
• Capillary suction
• Ks
• Moisture deficit
• fc
• fo
• Initial abstraction
• K
• Recovery constant
• Maximum volume
• Storage (Impervious Depression)
• Storage (Pervious Depression)
• Manning's n (Impervious)
• Manning's n (Pervious)
• Percent impervious
• Slope
• Subarea routing
• Percent routed

If you are using the EPA SWMM runoff method with the SWMM engine, you must:

1. Use the EPA-SWMM runoff for all catchments;

2. Use the same loss method for all catchments;

3. Set the Infiltration Method under Calculation Options to the loss method used by all catchments.

For more information on SWMM input data, see "Using the SWMM Solver"-320.