(A) On lot treatment. A series of practices that are designed to collect runoff from individual residential or small commercial lots. The primary purpose of most on lot practices is to manage rooftop runoff and, to a lesser extent, driveway and sidewalk runoff. Although there are a wide variety of on lot treatment options, they can all be classified into one of three categories:
(1) Practices that collect and infiltrate rooftop runoff;
(2) Practices that divert runoff or soil moisture to a pervious area; and
(3) Practices that store runoff for later use.
(B) Retention basins.
(1) Retention basins that are designed to collect and hold stormwater runoff, with no outlet pipes or structures. They are not necessarily infiltration basins, and are best designed to rely mostly on evaporation.
(2) Retention basins are only feasible when special circumstances of land and soil type are available.
(Ord. passed - -)