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MPCA Simple Estimator default BMP parameter assumptions

MPCA Simple Estimator default BMP parameter assumptions

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Percentage of annual runoff ... EMC removal efficiency for non-infiltrated water
BMP type Treated by BMP Infiltrated TP TSS
Biofiltration 90 20 441 85
Infiltration 90 90 0 0
Filter strip 90 0 0 68
Green roof 90 0 0 96
Permeable pavement 90 0 45 74
Sand filter 90 0 47 85
Swale 90 0 40 68
Wet basin 100 0 50 84
Wetland 100 0 38 73
Other User defined

1Assumes that an engineered media mix is used that does not leach phosphorus (e.g. Mix C or D, or media tested and total phosphorus content is 30 mg-P/kg-soil or less.