danger
COVID-19 Risk Level for Multnomah County: Extreme Risk

2020 Source Control Manual

The 2020 Source Control Manual became effective Dec. 14. The manual sets City policy for drainage and discharges resulting from development and post-development activities for site-specific activities like waste storage, loading and unloading, exterior storage and processing, and dewatering.

On this page

Important Dates

The City of Portland 2020 Source Control Manual (SCM) became effective Dec. 14, 2020. Beginning Dec. 14, 2020 and until Mar. 14, 2021, project designers may choose to design their projects using either the 2016 SCM or the 2020 SCM. Starting Mar. 15, 2021, all projects must meet the requirements of the 2020 SCM.

The SCM provides policy that governs drainage and discharges resulting from development and post-development activities or specific site uses. The manual identifies best management practices for how to build, operate, and treat wastewater and stormwater to prevent pollution and spills. The manual covers site-specific activities like waste storage, loading and unloading, exterior storage and processing, and dewatering. Portland City Code Chapters 3.13,17.34,17.38, and 17.39 and  Administrative Rules authorize the SCM.

The 2020 Source Control Manual

Manual Figures

Manual Forms

Additional Resources and Previous Manuals