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Stormwater Management Manual

A list of the 2013 changes to the Stormwater Management Manual are available for review.

Stormwater Management Manual

Former Stormwater Management Manual Volume1

Volume 5 of the Stormwater Management Manual (SWMM), the LID Manual, is an alternate compliance path to the average annual post construction total suspended solids (TSS) removal efficiency method described in Volumes 1 and 4. Please see The LID Manual for updates and additional information.

You may be eligible for a reduction in your Stormwater User Fee! Please see the Stormwater User Fee Credit Manual for more information.

Site Development Tool

A Site Development Tool has been created to aid engineers in designing the water quality treatment for a project based on the TSS removal efficiency method. This program can be downloaded onto your computer and used to calculate if a site meets Metro’s water quality requirements.

To ensure we are able to send out any updates to this tool, we are now requesting you to enter your e-mail address before this tool can be downloaded.


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