CONTENTS1 General Provisions2TrmS23 Basie Requirement4 Planning and Design of Stormwater Storing and Discharging.44.1 rainstorm runoff calculantion.44.2 Stormwater Runoff Calculation of Underpass Road.44.3 Design of Initial Runoff Collection.44.4 Design of Stormwater Pumping Station54.5 Design of Stormwater Storing Facilities.54.6 Arrangement of Stormwater Storing and Discharging Facilities.6Explanation to Special Words in this Standard.List of Quoted Standards.8Addition:Explanation of Provisions.9