(†R = Roof connection scaling factor, S = Sump pump connection scaling factor, L = Leakey sewer lateral scaling factor,

‡Weighting factors used for the modified Nah-Sutcliffe model areW₁ = 3 for Q > 90-th percentile, W₂ = 2 for 80- < Q< 90-th percentile, and W₃ = 1 forQ < 80-th percentile.)

Table 2. Contributing flow volume of three RDII sources using the IRF volume and the weighting coefficients