– Stormwater Engineering Standards and Manual-
Street, Storm Drain and Sanitary Sewer Specifications and Standards (October 2016)
Policy for Stormwater Detention on Small Site Upstream of Critical Area
As of May 6, 2014, Public Works has established the above referenced policy in order to provide a consistent framework addressing detention in re-developments which occur in watersheds that contribute to Critical Downstream Locations (Sec. 12A-5 of City Ordinances).
* For the purposes of this policy, a “small site” is one in which detention is not already required by the flow chart in Figure 6.8.1 of the City’s Stormwater Management and Water Quality Manual; for instance, sites with 20,000 or less square feet of impervious added and/or sites which are 3 acres or less with no increase in impervious surface.