Fire service connections supply a building’s fire suppression system from the SFPUC water distribution system. To determine if the water distribution system has sufficient hydraulic capacity to support the new fire service connection, a hydraulic analysis of the water distribution system in the vicinity of the project will be performed. If existing water distribution system pressures and flow are inadequate, the Project Sponsor will be responsible for system improvements required to meet the project’s demands.
Does a Hydraulic Analysis apply to my project?
|Fire Service Connection At a Glance
To supply water from the SFPUC’s distribution system to a building’s fire suppression system.
Who Must Comply?
All projects applying for a new dedicated fire service connection 2 inches in diameter or greater.
SFPUC Rules and Regulations Governing Water Service to Customers
April 10, 2014
Customer Service Bureau
525 Golden Gate Avenue, Second Floor
City Distribution Division
Upon receipt of a request for new fire service application, SFPUC Customer Service Bureau (CSB) will determine if a hydraulic analysis is necessary. A hydraulic analysis is required for new fire service connections 2 inches in diameter or greater. Only Project Sponsors directed to request a hydraulic analysis are required to obtain one.
How do I comply?
To obtain a new fire service connection:
What happens once my Request for Hydraulic Analysis for Water Distribution System Capacity is submitted?
- Contact the San Francisco Fire Department (SFFD) Plan Check to obtain a Fire Sprinkler Service-Meter & Supply Size Approval.
- Apply for a new fire service connection at SFPUC CSB in person. The SFFD approval will be sent to CSB on the Project Sponsor’s behalf. Note, fire services will require a backflow prevention assembly per SFPUC standards. Backflow prevention assemblies must be located within 25 feet of the point of connection.
- To initiate a hydraulic analysis, submit a completed Request for Hydraulic Analysis for Water Distribution System Capacity form in person at SFPUC CSB. Confirm the system’s flow and pressure requirements with the sprinkler system designer.
- Pay estimated installation fees.
- CDD will conduct the hydraulic analysis, and notify the Project Sponsor and CSB of the results. The notification will address the hydraulic capacity of the water distribution system and, if found to be inadequate, the scope and estimated cost of upgrades required to meet the desired flows. The Project Sponsor will be responsible for all costs associated with upgrading water distribution facilities to meet the project’s demand.
- If the hydraulic analysis determines the water distribution system is adequate, the Project Sponsor will receive a cost estimate for installation of the fire service connection.
- Hydraulic analysis results will be available approximately three weeks from the submission date.
The New Fire Service Application and Installation Process Flow Chart outlines the process to obtain a new fire service.
Planning Ahead - Preliminary Hydraulic Analysis
The SFPUC’s hydraulic analysis services are available to Project Sponsors during the design phase. For Project Sponsors who anticipate large fire sprinkler systems, it is strongly recommended that water demands are estimated early in the design process to budget for possible water distribution system upgrades.
To obtain a preliminary hydraulic analysis, email CDDengineering@sfwater.org with the following information for the proposed development:
What happens once my request for Preliminary Hydraulic Analysis is submitted?
- A Request for Water Flow Information form with the hydrant flow test results completed by SFFD Plan Check
- Location of the point of connection (street name and size of water main)
- Estimated sprinkler flow and pressure requirements at the service’s point of connection to the distribution main
- Estimated size (diameter in inches) of the proposed fire service lateral
- CDD will conduct the preliminary hydraulic analysis, and notify the Project Sponsor of the results. The notification will address the hydraulic capacity of the water distribution system and, if found to be inadequate, the scope and estimated cost of upgrades required to meet the project’s demand.
- Preliminary hydraulic analysis results will be available approximately three weeks from the submission date.
If you have specific questions about complying with the hydraulic analysis requirements, contact the SFPUC City Distribution Division at CDDEngineering@sfwater.org.
These resources are available to help you comply with San Francisco's New Fire Service Connection Requirements