Chapter 15.78 DRAINAGE, EROSION CONTROL, AND STORM WATER MANAGEMENT This chapter is included in your selections. Sections: 15.78.010 Natural drainage system utilized to extent feasible. 15.78.020 Developments must drain properly. 15.78.030 Storm water management. 15.78.040 Erosion control and sedimentation. 15.78.050 Storm water system design. 15.78.060 Illegal discharge of materials into the storm water system.