• City of Tacoma QA
  • City of Tacoma Data




Stormwater Management Manual

 The City of Tacoma Stormwater Management Manual describes the Minimum Requirements and technical standards for stormwater management in the City of Tacoma.

 

The City of Tacoma regularly updates its Stormwater Management Manual (previously called the Surface Water Management Manual) to comply with the most recent National Pollutant Discharge Elimination System (NPDES) permit, to clarify information and to incorporate updated policies.

 

2021 Stormwater Management Manual (SWMM) 

 The July 2021 Stormwater Management Manual is applicable to the following projects:

  • All complete applications submitted one or after July 1, 2021.
  • All complete applications submitted prior to November 24, 2015 that have not started construction by July 1, 2021. **Even if a construction permit has been approved and issued.**
  • All complete applications submitted prior to July 1, 2021 that have not started construction by July 1, 2026.  

Stormwater Management Manual WebBook

 

Training Materials

Full Day Recorded Training

Full Day Powerpoint Only

Full Day Stormwater Site Plan Example

Full Day Soils Report Example

 

Half Day Recorded Training 

Half Day Powerpoint Only

Half Day Stormwater Site Plan Example

Half Day Operation and Maintenance Manual Example

   

SWMM Policy Documents

The following policy documents shall be used in conjunction with the SWMM

Tip Sheets

The City of Tacoma developed several Tip Sheets to provide additional assistance on may topics.   

 
Payment In-Lieu of Construction Program

 

Tip Sheet for Payment In-Lieu of Construction Program - Gravel Pit

Tip Sheet for Payment In-Lieu of Construction Program - Thea Foss Watershed

 

City of Tacoma Regional Stormwater Facility Plan (June 2016)

City of Tacoma Regional Stormwater Facility Plan - Attachment 1: Flett Creek Watershed (August 2017) 

City of Tacoma Regional Stormwater Facility Plan – Attachment 2: Thea Foss Watershed (May 2018)

The City of Tacoma is currently in the design phase for a project that will alter the drainage basin for the Thea Foss Basin.  This may affect which new development projects can participate in the program.  Before completing an application for inclusion in the Thea Foss Program for a new development project contact Mieke Hoppin (mhoppin@cityoftacoma.org) to ensure that the project can utilize the program.

Application For Payment In-Lieu of Construction Program – Gravel Pit

Application for Payment In-Lieu of Construction Program – Foss Facilities

Voluntary Agreement and Covenant – Gravel Pit

Voluntary Agreement and Covenant – Foss Facilities

 

Previous SWMM Versions 

 

July 2016 SWMM

For projects vested beginning August 1, 2016 to June 30, 2021.

 

January 2016 SWMM

For projects vested beginning January 7, 2016 to June 30, 2016.

 

2016 SWMM Related Documents

 

2016 Public Training Presentation

 

2012 SWMM

For projects vested beginning February 1, 2012 to January 6, 2016.

 

2012 SWMM Related Documents 

 

Errata:

Errata to Volume 3 and Glossary (August 27, 2013)

Errata to Volume 3-Chapter 1 (April 4, 2012)

Errata to Volume 3-Chapter 10 and Volume 5-Chapter 3 (April 29, 2012)

Errata to Volume 3-Chapter 5 and Chapter 9 (October 30, 2012

 

Policy Updates for 2012 SWMM

 

Stormwater Facility Maintenance Standards (June 2015)

Infrastructure Protection Requirement (July 30, 2014)

Minimum Requirement #5 Roof Downspout Control Selection (August 13, 2013)

Infiltration Trench Sizing (August 13, 2013)

New Impervious Surface Definition (August 7, 2013)

Bituminous Surface Treatment Definition (June 19, 2013)

 

Training:

2012 Training Workshop Presentation

 

2008 SWMM

 

For projects vested beginning September 22, 2008 and ending January 31, 2012. 

 

Policy Updates for 2008 SWMM
 

Revision to Detention Practices for the Leach Creek Watershed (January 28, 2009)

Proprietary Device Policy - (Rescind 2021)

Revision to Detention Practices for Flett Creek Watershed (May 13, 2008)

 

2003 SWMM

For projects vested prior to September 22, 2008.

 

Request for Stormwater Management Manual and Policy Updates

 

Your Name (required)

 

  

Company Name

  

 

Street Address

  

   

City 

   

   

State 

   

    

Zip Code

  

   

Phone Number 

 

 

E-mail (required) 

 

 



Security Measure