National Stormwater Calculator (SWC)

The National Stormwater Calculator (SWC) is a tool for computing site-specific stormwater runoff based upon local soil conditions, land cover and precipitation records.

Developer
EPA
Model Information
For more information about this model, go to www.epa.gov
Spatial Resolution
Spatial resolution is on the magnitude of single sites and can be as specific as square feet
Temporal Resolution
The resulting time series of rainfall and runoff are aggregaed into daily amounts.
Outputs
The calculator���s primary focus is informing site developers and property owners on how well they can meet a desired stormwater retention target.
Intended User
practitioner, decision maker
Model Type
decision making
Inclusion of Climate Change
The SWC allows users to consider how runoff may vary based on historical weather and potential future climate conditions.��
Geographic Region
generalized
Data Requirements
all data sets built in
Source Code Availability
closed source
Dimensions
2d
Computational Burden
low
Scenario Modeling
scenarios by hand only
Coding Language
GUI, C/C++
Operating System
not applicable
Mathematical Approach
deterministic, simulation
Maintenance Plan
maintained
Date of Last Known Update
1-Aug-19
User Manual
go to documentation at www.epa.gov