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pollutant loading - annual vs. per rainfall event

pollutant loading - annual vs. per rainfall event

pollutant loading - annual vs. per rainfall event

(OP)
I am looking at the new feature that provides the pollutant loading for subcatchment areas.  IN the reports, it appears that the results give a quantity of pollutant per storm event.  Is there a way to get an annual pollutant loading number from this new feature?

Thanks,

- shane

RE: pollutant loading - annual vs. per rainfall event

The loading is calculated per event only if you select "actual runoff" on the Settings|LandUse screen.

To get annual loading, select one of the other options under "imperviousness" and enter the total rainfall depth for the period of interest - such as the annual depth.  These options use the Simple method and imperviousness to determine the (annual) runoff, and thence the (annual) pollutant loads.

For details please see www.hydrocad.net/landuse.htm

...or press the Help button
 

Peter Smart
HydroCAD Software
www.hydrocad.net
 

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