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Hydrant pressure: Seattle Fire Department Administrative Rules require that any single hydrant provide 2000 gpm (1000 gpm for single family dwellings) at minimum residual pressure of 20 psi. Design and construction of fire protection features should comply with Seattle Fire Code and Standard Plans and Specifications.
Hydrant resets, relocations and adjustments:
Any hydrant resets, relocations and/or adjustments will be identified during the design approval process or with construction scheduling. These changes require 4-6 weeks advance notice. Please contact SPU Engineering.
Fire flow requirements:
The Seattle Fire Department and SPU Engineering will authorize all designs impacting fire flow. The following requirements apply:
- Required FF 1000 gpm (single family)
- Required FF 4000 gpm (commercial)
- Required FF 8000 gpm (major institution)
Fire hydrant Locations: Fire hydrant locations must conform to Standard Specification 7-14 and Standard Plan 314.
Use of fire hydrants under non-firefighting conditions: Temporary use of a hydrant by private individuals, businesses or organizations will be allowed under certain conditions. To this extent, Seattle Public Utilities will control use of all hydrants within the distribution system. In accordance with SPU Policy & Procedure item SPU-SEC-0004 temporary water service from the distribution system, for less than six months, may be authorized via a hydrant use permit or hydrant use meter issued by SPU Customer Service. For information regarding Hydrant Permits please contact the SPU Customer Service.
Refer to listing of water service permit charges.
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