Design of storm water detention facilities shall be based on a return period of once in 100 years. The storage volume and outflow rate shall be sufficient to handle storm water runoff from a critical duration storm, as defined in §§ 155.075 and 155.076. Rainfall intensity-duration-frequency relationships shall be those given in Appendix A, Table 6.
(Ord. 1995-10 § XIV B, passed 10-13-1995)