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2.1.3.2 Runoff Coefficient

The runoff coefficient is the ratio of the inflow rate, $i*Area$ , to the peak discharge rate, $q_{peak}$ . The coefficient will vary from storm to storm and is calculated with the equation:

$C=\frac{Q_{surf}}{R_{day}}$ 2:1.3.15

where $Q_{surf}$ is the surface runoff (mm H $_2$ O) and $R_{day}$ is the rainfall for the day (mm H $_2$ O).

2.1.3.2 Runoff Coefficient

The runoff coefficient is the ratio of the inflow rate, $i*Area$ , to the peak discharge rate, $q_{peak}$ . The coefficient will vary from storm to storm and is calculated with the equation:

$C=\frac{Q_{surf}}{R_{day}}$ 2:1.3.15

where $Q_{surf}$ is the surface runoff (mm H $_2$ O) and $R_{day}$ is the rainfall for the day (mm H $_2$ O).