MPCA Simple Estimator runoff coefficient and pollutant event mean concentration (EMC) values. For additional information, see Event mean concentrations of total and dissolved phosphorus in stormwater runoff, Event mean concentrations of total suspended solids in stormwater runoff, Stormwater runoff coefficients/curve numbers for different land uses.
Link to this table

Land use Runoff coefficient (Rv) TP EMC1 (mg/L) TSS EMC (mg/L)
Commercial 0.8 0.20 69
Industrial 0.8 0.31 71
Institutional 0.75 0.26 23
Multi-use 0.5 0.29 73
Municipal 0.5 0.29 73
Open space 0.2 0.125 70
Transportation 0.8 0.35 89

1Event mean concentration

Privacy policy

Template:Footer