Water System Design Manual
Booster Pump Station Checklist
Booster pump station project reports and construction documents must include:
Sizing analysis, including pumping system discharge capacity requirements, as well as
fire flow requirements, if any.
Hydraulic analysis that demonstrates the ability of the project to meet minimum pressure
requirements during peak hourly demands and maximum day demands plus fire flow.
The analysis should include a narrative discussion that describes the hydraulic analysis
method, explains critical assumptions, and summarizes the effect of the proposed
expansion on the existing system (see Checklist VII Hydraulic Analysis for additional
Service area map designating specific properties to be served.
Pumping equipment specification including:
Horsepower, flow rate (gpm), head, pump controls, and alarm system.
The specific pump curve used and operation range of head and flow conditions must
be clearly indicated on pump curve. A narrative discussion of the ability of the
pumping system to meet required demands should be included.
Pump house details including equipment layout, slope, and texture of pump house floor.
Also, identify heating, cooling, and ventilation needs.
Structural details including special anchoring or support requirements for equipment and
Control and instrumentation specifications including potential for surge or "water
Site piping plans including:
Isolation valves on the suction and discharge sides
Check valves on the discharge side
Surge anticipation valves, as needed
Suction side pressure gauge(s)
Provisions for backup power to be evaluated and must be installed for all closed system
booster pump stations.
Refer to Chapter 10 and WAC 246-290-230 for additional design considerations.