4.8.4 Runoff Model Representation

Where residential roof runoff is dispersed on the up-gradient side of a structure in accordance with BMP F6.41 Sheet Flow Dispersion in the 2004 SWMMEW, the tributary roof area may be entered into the hydrologic model for sizing flow control facilities (see Appendix C: Sizing of LID Facilities) as pasture underlain by the native soil type.

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