Skip to main content

Oregon State Flag An official website of the State of Oregon »

Stormwater Facility Maintenance

Operation and Maintenance Manuals

All new stormwater management facilities are required to have an operation and maintenance (O&M) manual. 
Guidance on how to prepare O&M manuals can be found in Chapter 4 of the Hydraulics Manual and GE16-02(B). 

O&M Manual Templates

Existing O&M Manuals

Completed O&M manuals for individual stormwater management facilities can be found by selecting a SMF icon in 
TransGIS. Refer to the 'Accessing Stormwater Features Inventory' section above for instructions on accessing 

Maintenance Tables

Recommended maintenance for specific stormwater management facilities is summarized in the following series of 
tables. Maintenance actions depend on the facility type.
Standard Operation Manuals
Standard operation manuals (SOMs) define the components, purpose, and operation of commonly used water 
quality facilities. SOMs are used as a guide to identify water quality facilities and gain a better understanding of how 
each facility operates.