Chapter 7 - Water Efficiency Flashcards
Guideaerator
A water flow constrictor attached to the tip of an indoor water faucet to limit the amount of water that flows out of it.
baseline case
A standard from which a basis of change can be measured for improvement.
Blackwater
Water from toilets and urinals considered under all codes to be wastewater. Some states also consider water from kitchen sinks, showers, and bathtubs to be blackwater.
cooling tower
A structure that regulates air temperature in a facility by using water to absorb heat from air conditioning systems.
design case
The actual project design metrics that are compared to a baseline to show efficiency gains.
drip irrigation
Water delivered at a low pressure directly to the roots of a plant.
EPAct of 1992
WE Prerequisite - Indoor Water Use Reduction
Energy Policy Act of 1992 sets the maximum flush and flow rates in buildings:
-1.6 gpf in toilets/water closets
- 1.0 gpf in urinals
Evapotranspiration
Amount of water lost through evaporation in irrigation.
FTE
full-time equivalent
used to calculate number of occupants in a building with associated average daily water fixture use.
A building occupant who spends 40 hours per week in the project building.
Transient occupants have FTE values based on their hours per week divided by 40.
Graywater
Untreated household wastewater that has not come into contact with toilet waste. This includes wastewater from bathtubs, showers, bathroom sinks, and washing machines. It does not include wastewater from kitchen sinks or dishwashers.
Lavatory
A bathroom sink.
native and adapted species
Plants that are either native to the region or have adapted to the region and require little to no irrigation.
nonpotable water
Water collected from a variety of sources, such as rainwater, that has not been approved for human consumption but can be used for irrigation and toilet flushing.
Water pollution from diffuse land uses, rather than a single facility, and one of the biggest threats to surface water quality and aquatic ecosystems
potable water
Water treated to a standard that makes it safe for human consumption.
reclaimed water
Wastewater that has been treated and purified for nonpotable uses.