S5.C.7 Structural Stormwater Controls

Summary of Program Component and Permit Compliance Measures

The Permit requires the City to implement a Structure Stormwater Control (SSC) Program to prevent or reduce impacts to waters of the State caused by discharges from the MS4.  The Program is intended to consider impacts caused by stormwater discharges from areas of existing development and areas of new development where impacts are anticipated to occur.

The program shall address impacts that are not adequately controlled by the other required actions of the SWMP.  The required metric for permit compliance is to obtain 300 SSC Program Points by December 31, 2022.  The City of Tacoma has completed and achieved the required 300 SSC Program Points by using a variety of allowed project types including street sweeping, line cleaning, restoration of forest cover, and design phase work associated with new runoff treatment and flow control facilities. 

The Environmental Programs Group will continue to coordinate with other City departments and groups including Public Works, Asset Management, Watershed Planning, Open Space and ES Capital Delivery to help prioritize projects that will be utilized for the SSC Program.  The City will ensure projects types in S5.C.a.i are considered for use in the program and will also use project types in S5.C.a.ii to achieve the required SSC Program Points.

As required by the Permit, the City will provide a list of planned, individual projects scheduled for implementation during the Permit term with each Annual Report.