Difference between revisions of "Calculating stormwater volume and pollutant reductions and credits"
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The Minnesota Stormwater Manual version 1.0 did not contain sufficient information to allow application of pollutant removal effectiveness for TSS and TP across a range of performance levels. Version 1.0 contained average performance numbers and “typical BMP outflow concentrations.” Input from users asked for more detail on how performance data could be applied across a wider range of conditions with more accuracy. The purpose of this version 2.0 addition is to gather more information about system performance, re-define what that actually means, and report on a three-tiered (high, medium, low) method for using the performance data. | The Minnesota Stormwater Manual version 1.0 did not contain sufficient information to allow application of pollutant removal effectiveness for TSS and TP across a range of performance levels. Version 1.0 contained average performance numbers and “typical BMP outflow concentrations.” Input from users asked for more detail on how performance data could be applied across a wider range of conditions with more accuracy. The purpose of this version 2.0 addition is to gather more information about system performance, re-define what that actually means, and report on a three-tiered (high, medium, low) method for using the performance data. | ||