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<br /> . <br /> Paris Business Park DEVELOPMENT STANDARDS <br /> Paris, Texas <br /> Paris Economic Development Corporation <br /> 6.2.0 Storm water Management <br /> <br /> 6.2.1 Objectives <br /> <br /> To provide controlled positive surface drainage away from buildings and other site <br /> features and to an underground stonn water system. The completed design and <br /> installed system shall comply with all applicable state and local regulations and <br /> ordinances. <br /> <br /> 6.2.2 General Design Considerations <br /> <br /> Provide a complete drainage system that accounts for runoff from impervious surfaces <br /> and directs storm water to underground piping by direct connection or area inlet. Each <br /> system may include some or all of the following: <br /> <br /> + roof drains with overflow protection <br /> <br /> + downspouts tied directly to underground stonn piping or with surface <br /> drainage directly to impervious surface <br /> ~ + landscape swales or drainage channels <br /> <br /> + area drains or vaults <br /> <br /> + underground piping <br /> <br /> 6.2.3 Design Standards <br /> <br /> Each succeeding part of every drainage system shall be designed to the minimum <br /> capacity of the amount of a 25- Year rainfall cumulatively in the system. <br /> <br /> 6.2.4 Diagrams <br /> <br /> The following diagrams illustrate various parts of a typical stormwater drainage <br /> system: <br /> <br /> <br /> <br /> <br /> SECTION AT SWALE & BERM <br /> <br /> Graeber, Simmons & Cowan Page 27 o f30 1/9/03 <br /> 200209400 <br />