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Notched Grade Board Trench <br />For roof areas larger than 700 W, dispersion trenches with notched grade boards may be used with <br />a total length not to exceed 50 It, <br />Notched Grade Board Trench Length(ft) = <br />700 <br />Splashhlocks <br />Splashhlocks shall he designed in accordance with the SWMMWW. A maximum of 700 ft' of roof <br />area can drain to a single splashblock. <br />None sized. <br />BMP T5.IOC Perforated Stub -out Connections <br />City of Everen Public Works <br />Small Project Stormwater Sne Plan Report Disc 2019 <br />