Water Efficiency Flashcards
Tool that calculates a baseline landscape water requirement (LWR) of a typical landscape?
EPA Water Sense Budget Tool
Landscape Water requirement information is used for which WE-P/C?
Outdoor Water Use Reduction
Equipment that should be installed in cooling towers and evaporative condensers per WE-P Indoor Water Use Reduction?
Make up water meters
Conductivity controllers and overflow alarms
Efficient drift eliminators
-reduce drift to a maximum of .002% of recirculated water volume for counterflow towers and 0.005% of recirculated water flow for cross-flow towers.
Types of fixtures that can have Water Sense labels?
Tank type toilets
Water using urinals
Private lavatory faucets
Shower heads
Fixtures not labeled by Water Sense and must comply with percentage reduction criteria for WE-P Indoor Water Use Reduction?
Tankless toilets
Composting toilets and waterless toilets
Waterless urinals
Public lavatory faucets
Information required by the USGBC Indoor Water Use Calculator?
Project occupancy numbers
Gender ratio
Days of operation
Fixture types used in the project
Provide 3 examples of potable water sources that must be metered for a project pursuing LEED certification.
Public Water Supply
On-site Well
On-site potable water treatment system
What percent reduction should a project team assume if they specify weather-based irrigation controllers to achieve WE-C Outdoor Water Use Reduction?
15%
What is the definition of landscape water requirement?
Total amount of water used during peak water season (summer) for landscaping areas.
Mixed use project with office, residential, and retail.
How should team address different building users when making calculations for indoor water use?
Project team must calculate each group separately using the USGBC spreadsheet by adding one tab for each user type to the spreadsheet.
Project pursuing LEED certification.
Which 3 factors should building owner confirm with the utility company for building-level metering?
Location of meter
Accessibility to meter
Reporting system comm to utility
LEED BD+C rating system takes Efficiency First approach for which prerequisites?
WE-P Indoor Water Use Reduction
WE-P Outdoor Water Use Reduction
EA-P Minimum Energy Performance
minimum water use reduction for WE-P Outdoor Water Use Option 2?
30% from baseline of LWR
Use smart sensor technology that meets WaterSense criteria.
What percent water reduction from outdoor water use baseline is required?
15%
What alternative water source can be used for irrigation?
Reclaimed Wastewater Gray Water Swimming Pool Backwash Filter Reefer Condensate Rainwater Stormwater Foundation drain water Steam System Condensate Fluid Cooler Dishcharge Food steamer discharge Combination oven discharge Industrial process water Fire pump test water, Municipally supplied teated waste water, Ice machine condensate
Concerns when considering alternative water sources?
Salinity
Timing and reliability of alternative water supply
Ineligible water sources for WE-C Indoor Water Use Reduction?
Raw water from natural surface bodies of water
Streams
Rivers
Groundwater
Well water
Seawater
Water discharged from open-loop geothermal system
First step to implement WE-C Cooling tower water use?
Professional must perform chemical analysis
Information used for EPA Water Sense Water Budget Tool to estimate a project’s evapotranspiration rate for the peak watering month.
Project zip code.
WE-C Cooling Tower Water Use cycles of concentration?
of times volume of water can circulate through cooling tower before mineral concentration causes deficiencies in system.
Required flow rate for Water Sense aerators in private lavatories?
At least .8 gpm at 20 psi
Max 1.5 gpm at 60 psi
Typical private faucet applications?
Residential bathroom sinks Hotel or motel bathroom sinks Dormitory bathroom sinks Patient room sinks Patient bathroom sinks in hospitals or nursing homes
Typical public faucet applications?
Restroom sinks
School classroom sinks
Sinks excluded from indoor water use reduction calculations?
Janitor sinks Laboratory sinks Commercial kitchen sinks Medical sinks Soiled utility room flushing/handwashing sinks Clean utility room handwashing sinks
Documentation for WE-P Indoor Water Use Reduction?
Product cutsheets and fixture schedules
Baseline flow rate for public lavatory faucets?
.5 gpm
Baseline flow rate for private lavatory faucets?
2.2 gpm
Default gender ratio for FTE occupants?
50:50
Areas that can be excluded at the project team’s discretion when documenting compliance with WE-P Outdoor Water Use Reduction
Vegetated playgrounds
Athletic fields
Food gardens
Urban agricultural areas
Water subsystems that must have 100% of their sources submetered for WE-C Water Metering?
Boilers
Reclaimed Water
Meeting minimum number of cycles for 1 point of WE-C Cooling Tower Water Use.
How can additional point be achieved?
Use at least 20% alternative non-potable water sources.
Factors used to calculate a project’s landscape water requirement?
Plant Type
Plant Density
Irrigation Needs
Information required by USGBC Indoor Water Use Calculator for design case water use for a public restroom?
Fixture type
Flush/flow rate
Manufacturer and model number
Percentage of occupant types such as FTEs and vistors using the fixtures
5 systems which need water meters installed in addition to the metering requirements for healthcare projects?
Purified water systems (reverse Osmosis)
Filter Backwash Water
Water use in dietary department
Water use in laundry
Water use in laboratory
Water use in central sterile and processing department
Water use in physiotherapy and hydrotherapy and treatment areas
Water use in surgical suite
Closed Looped hydronic system makeup water
Cold water makeup for domestic hot water systems
Information a plumbing engineer requires for inputting data in the USGBC Indoor Water Use Calculator?
Project occupancy
Gender ratio
Days of operation
Fixture types used in the project
Information required for calculating water use for each fixture type?
Fixture flush or flow rate
Duration of use
Number of users
Uses per person per day
Equipment that may be excluded from indoor water use calculations?
Appliances and equipment that use water on materials intended for human consumption.
Fixtures whose flow rates are regulated by health codes
Process water sinks
Documentation needed to meet the prescriptive method requirements for WE-P Indoor Water Use Reduction
Product cutsheets
Fixture schedule
WE credits available for exemplary performance?
Indoor Water Use Reduction
Exemplary performance for WE-C Indoor Water Use Reduction?
55% water savings
Projects exempt from meeting WE-P Outdoor Water Use Reduction
Zero lot line and other similar projects with no landscaping areas.
Which factors are included in LWR calculations?
Plant type, plant density, irrigation needs.
Eligible alternative sources to potable water for indoor water use?
Municipality supplied reclaimed water - "Purple Pipe" Graywater Rainwater Stormwater Treated seawater condensate Foundation dewatering water Used process water Reverse osmosis reject water
Documentation a team should submit to pursue WE-P Outdoor Water Use Option 1 no irrigation?
Site plan including:
Vegetated areas
Narrative for plant species and their water requirements
Additional water consuming appliances that must meet the requirements of WE-P Indoor Water Use Reduction for Healthcare, Retail, Schools, and Hospitality?
Dishwashers
Food Steamers
Combination Ovens
Areas a landscape architect can include/exclude at the project teams discretion when determining outdoor water use reduction for a high school building project.
Athletic fields
Vegetated playgrounds
Food gardens
Urban agricultural areas
Locations of lavatory fixtures that are considered private per UPC, IPC, NSPC?
Residential, Hospitality, Medical
WE-P Indoor Water Use Reduction requirements for cooling tower and evaporative condenser process?
Equipment must have:
Makeup Water Meters
Conductivity controllers and overflow alarms
Efficient drift eliminators
How can building owner share building level water meter data with USGBC?
Through third party data source or USGBC-approved data template.
Duration a building owner must share building level water meter data with USGBC
5 years or when building owner/lessee changes.
