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in the Green Procurement Compilation

Water Efficiency

Buildings are significant users of the Earth’s freshwater supply. The goal of a responsible building operator should be to encourage a sma...
Space Reconfiguration and Renovation Projects

As needs change over time, tenants often need to convert space or phase the conversion of individual space or rooms to meet these changing needs....
Building Systems Upgrades

This page details Sustainable Strategies to consider as your space undergoes a building system upgrade to improve energy, water use, and occupant co...

Gallons per flush (gpf) references the amount of water used per flush in flush fixtures, such as toilets and urinals.

Water - Green Globes for Existing Buildings

Are there the following water-conserving fixtures: low flow toilets that use less than 1.5 GPF? Ultra low flush urinals that use less than 1.0 GPF? ...
Water - Plumbing Fixtures

High efficiency plumbing fixtures (toilets, urinals, faucets, and showers) can lead to significant water savings. FEMP BMP #6 gives some guidance on...
Water - Green Globes for Existing Buildings

Green Globes for Existing Buildings encourages cognitive implementation and metering of water heating equipment for energy efficiency measures. With...

High-Efficiency Urinal (HEU)

High-Efficiency urinals have a maximum water use of 0.125 gallons per flush (gpf) (1 pint per flush). Also included are waterless urinals which ...
Low-Flow Toilets

Low-flow toilets are based upon the Energy Policy Act of 1992 (EPAct 1992) and use 1.6 or less gallons of water per flush (gpf). Relative to...
Conventional Toilets

Conventional toilets are those that pre-date Energy Policy Act of 1992 (EPAct 1992) and use 3.5 or more gallons of water per flush.
Pressure-Assisted Toilets

Pressure-assisted toilets use the pressure from the main water line to more efficiently empty the bowl and use less water.
Dual-flush Toilets

Dual-flush toilets have two levels of flushing - a full for solid waste and a reduced flush for liquid waste. Typically full flushes range f...
Conventional Urinal

Conventional urinals are those that pre-date Energy Policy Act of 1992 (EPAct 1992) and use 1.5 or more gallons of water per flush.
Low-Flow Urinal

Low-flow urinals are based upon the Energy Policy Act of 1992 (EPAct 1992) and use 1.0 or less gallons of water per flush (gpf). Relative to ear...
High-Efficiency Toilets

High-Efficiency toilets are those that use 1.28 or less gallons of water per flush gpf. Also included are composting toilets which require litt...

Sustainable Facilities Tool U.S. General Services Administration