Public Comment Period for the Draft 2018 Model BMP Design Manual Update

2018 Update to the Model BMP Design Manual

The Model BMP Design Manual for Permanent Site Design, Storm Water Treatment, and Hydromodification Management for the San Diego Region has been updated. Updates to the February 2016 Model Manual are intended to provide the Copermittees with a template to incorporate additional guidance, clarifications, and material to their existing jurisdiction specific manuals and include the following:

  • Applicability,
  • Pollutant Control and Hydromodification Management (including new hydromodification sizing factors and critical coarse sediment guidance),
  • Biofiltration BMP Sizing Methods and Performance Standards,
  • Infiltration Feasibility Assessments,
  • Operations and Maintenance Guidance,
  • Best Practices, and
  • Other minor updates.

Click Here for Download of the 2018 Draft Updated Model BMP Design

Updates and revisions to the Design Manual are in “Red” text. The Copermittees will consider feedback on the updated material in the form of written comments submitted via email to

A seminar was held on January 16, 2018 to discuss the Manual revisions. The seminar presentation can be found here.