WE (Water Efficiency) Flashcards
An office project in an arid climate is going to include a rainwater-collection system to offset indoor potable water use for toilet flushing. The office will have WaterSense fixtures. The occupancy will be 100 FTEs and 20 average daily visitors. Which item does the project need to include with the narrative for WE Credit Indoor Water Use Reduction?
When using non-potable water, the plumbing system design drawings must highlight the non-potable water system. The supply and demand calculations must show the supply of non-potable water is enough to meet what the project needs.
A project with an evaporative condenser uses 100% potable water for cooling. Which action would the project team need to take to achieve WE Prerequisite Indoor Water Use Reduction?
- makeup water meters
- conductivity controllers and overflow alarms
- efficient drift eliminators
The entire water supply for a building is provided by a public water supply and uses a single water meter. The meter is not accessible for reporting to achieve WE Prerequisite Building-Level Water Metering. Which action can the project team take to track water usage?
Location, access, and reporting are three things that should be verified for the prerequisite. The project team needs to be able to obtain the metered data for reporting.
A private meter installed downstream but before all water subsystems is a way to get data.
A team member is entering toilet information for calculating the design case for indoor water use. In addition to the fixture type and its flush rate, which information must be entered into the calculator for the toilet?
In the calculator teams will enter:
Type of fixture
Flush or flow rate
Manufacturer and model
Percentage of occupants using the fixture.
Which information must a project team calculate in order to manage rainwater on site when the team has determined natural land-cover conditions?
The natural land-cover volume and the post-development volume
Both the natural land-cover volume and the runoff volume under post-developed conditions are needed.
An engineer is reviewing the design of a cooling tower for a hospital project. The design includes a makeup water meter, conductivity controller, and efficient drift eliminators. What else needs to be included for WE Prerequisite Indoor Water Use Reduction?
Overflow alarm
The prerequisite requirements for cooling towers and evaporative condensers are to make sure the equipment has:
- makeup water meters
- conductivity controllers and overflow alarms
- efficient drift eliminators
The other choices are part of WE Credit Cooling Tower Water Use
A project design will include bioretention areas, porous paving, rain gardens, and pervious decking. Which type of strategies are these?
Green-infrastructure and low-impact development strategies for rainwater management
These are LID and GI strategies for rainwater management.
Which action must a project team take to achieve WE Prerequisite Building-Level Water Metering?
Measure total potable water use of the whole building
Commit to sharing five years of data with USGBC
Measure total potable water use of the site grounds
