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Stormwater Management Requirements

Our website has recently been updated to reflect the changes of the NEW 2016 Stormwater Management Requirements and Design Guidelines (SMR)! The SMR will become effective May 27, 2016. The SMR will apply to Large Projects submitting Preliminary SCPs on or after May 27, 2016. Any projects that submit a Preliminary SCP prior to that date will comply with the 2010 Stormwater Design Guidelines. The SMR will also apply to Small Projects that file for a site or building permit with the San Francisco Department of Building Inspection after May 27, 2016.

All 2010 Guidelines materials are still available on the 2010 Guidelines site.

How Do I Comply?

Follow these required actions for the construction of your project

SMR Document

Download the SMR and associated appendices (i.e. GI Typical Details and Specifications)

SCP Resources

Stormwater Control Plan Instructions and materials, BMP Calculators, Self-Certification Checklists, etc.

curb inletManaging stormwater, which may otherwise wash pollutants into our waterways or overwhelm our sewer system, is critical to protecting water quality, wildlife, and public health. Like many California municipal agencies, the SFPUC administers a stormwater management program developed in accordance with the Clean Water Act. Effective May 22, 2010 and updated in 2016, the San Francisco Stormwater Management Ordinance (SMO) requires new and redevelopment projects to manage stormwater using green infrastructure (i.e. stormwater controls or best management practices) and to maintain that green infrastructure for the lifetime of the project.


Stormwater Management at a Glance

Purpose
To manage stormwater that may otherwise wash pollutants into San Francisco waterways or overwhelm the City’s sewer system, and protect water quality, wildlife, and public health.

Who Must Comply?
New and redevelopment projects that create and/or replace: (1) ≥5,000 square feet of impervious surface in separate and combined sewer areas; or (2) ≥2,500 square feet of impervious surface in separate sewer areas.

Municipal Code
Public Works Code, Article 4.2 Sections 147-147.6

FAQs

SMR Summary Flyer

SMR Frequently Asked Questions

Contact
Urban Watershed Management Program

stormwaterreview@sfwater.org

The Stormwater Management Requirements and Design Guidelines (SMR) outlines the mandatory requirements for managing post-construction stormwater runoff and provides guidance on how to incorporate green infrastructure into site design. 

Do the requirements apply to my project?
The SMR applies to the following project types:

Large Projects:
new and redevelopment projects that create and/or replace ≥5,000 square feet of impervious  surface in the separate and combined sewer areas; and
Small Projects:
new and redevelopment projects that create and/or replace 2,500-5,000 square feet of impervious surface in separate sewer areas.

Activities that create or replace impervious surface include, but are not limited to, the construction, modification, conversion, or alteration of any building or structure and the creation or replacement of outdoor impervious surfaces such as parking areas, driveways, or private street areas.

The SMR does not apply to the following activities:

  • pavement maintenance activities such as top-layer asphalt grinding and repaving within the existing footprint;
  • replacement of existing sidewalks and streets dedicated to and accepted by the City;
  • interior remodeling projects;
  • re-roofing;
  • exterior wall surface replacement; or
  • utility repair work requiring trenching or excavation with in-kind surface replacement.

Stormwater Management Ordinance Project Map

Click on a point to check out project information!



Last updated: 6/14/2017 10:10:07 AM