Pass the USGBC Leadership in Energy and Environmental Design (LEED) LEED-Green-Associate Questions and answers with CertsForce

Building-Level Water Metering is a prerequisite in LEED v4 Water Efficiency category. Building-Level Water Metering means that the project must install permanent water meters that measure the total potable water use for the building and associated grounds. The project must also commit to sharing the water usage data with USGBC for at least five years after occupancy or certification. The LEEDGreen Associate Candidate Handbook states that this is one of the two prerequisites in the Water Efficiency category [1, p. 14]. References: [LEED Green Associate Candidate Handbook], [Building-Level Water Metering | U.S. Green Building Council]

An occupant survey is the most efficient way for building users to rate the heating and air-conditioning and other aspects of work spaces. An occupant survey is a tool that collects feedback from building occupants about their satisfaction with various aspects of their indoor environment, such as thermal comfort, lighting quality, acoustic quality, air quality, and spatial layout. An occupant survey can help identify areas for improvement, monitor performance, evaluate design strategies, and inform future decisions. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving indoor environmental quality is to “conduct occupant surveys on thermal comfort” [1, p. 16]. References: LEED Green Associate Candidate Handbook, [Occupant Surveys | Center for the Built Environment]

LEED rating systems are designed with 100 base points for core credits, six bonus points for Innovation, and four bonus points for Regional Priority credits. This structure allows projects to achieve a total of 110 points, reflecting LEED’s flexibility and comprehensive approach​​.

The Full Time Equivalent (FTE) occupancy of a project is a measure of how many people occupy a building or space on a regular basis. The FTE occupancy is calculated by dividing the total number of hours worked by all occupants in a week by the standard weekly hours for one FTE occupant. Thestandard weekly hours for one FTE occupant is typically 40 hours per week1 . For this project, the FTE occupancy is calculated as follows:

16 employees x 4 hours/day x 5 days/week = 320 hours/week 20 employees x 6 hours/day x 5 days/week = 600 hours/week 10 employees x 8 hours/day x 5 days/week = 400 hours/week Total hours/week = 1320 hours/week FTE occupancy = 1320 hours/week / 40hours/week = 33 Therefore, the FTE occupancy of the project is 33. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide

An alternative commuting incentive program is a strategy that can be used to encourage alternative transportation methods, such as public transit, carpooling, biking, or walking. An alternative commuting incentive program can provide benefits or rewards for the employees or tenants who use alternative transportation modes, such as subsidies, vouchers, discounts, prizes, recognition, or preferential parking. This strategy can help to achieve LEED Location and Transportation Credit: Alternative Transportation1 . References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide

Utilizing an existing community nature path connecting the building to surrounding buildings is an action that promotes pedestrian access to a project site. Pedestrian access is the ability of people to walk to and from a project site safely and comfortably. A community nature path is a type of pedestrian infrastructure that provides a pleasant and scenic route for walking, as well as environmental benefits such as habitat creation, stormwater management, and heat island reduction. The other options are not actions that promote pedestrian access to a project site.Placing a low speed limit in the parking lot around the building is an action that enhances pedestrian safety within the project site, but does not improve pedestrian access to the project site. Providing shuttle access between the project site and a local transit center is an action that encourages alternative transportation, but does not promote pedestrian access to the project site. Designating parking spaces closest to the building for exclusive use by carpooling vehicles is an action that reduces vehicle trips and emissions, but does not promote pedestrian access to the project site. References: LEED Green Associate Candidate Handbook, page 30; USGBC, [Location & Transportation], page 3.

The amount of landfill-destined waste generated during project construction can be reduced by requiring the general contractor to follow requirements for using dimensional construction materials, prefabrication or material efficient framing. These methods reduce the amount of material waste by minimizing cutting, fitting, and trimming on site, and by using standardized or modular components that can be easily reused or recycled. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving materials and resources efficiency is to “reduce construction waste through efficient framing techniques” [1, p. 15]. References: LEED Green Associate Candidate Handbook, [Reducing Construction Waste | U.S. Environmental Protection Agency]

Blackwater is wastewater that contains fecal matter and pathogens, such as from toilets. Greywater is wastewater that is less contaminated, such as from showers, sinks, and washing machines1. However, the classification of kitchen sink wastewater may vary depending on local codes and regulations. Some states and authorities consider kitchen sink wastewater as blackwater because it may contain food waste and germs123. Others consider it as greywater if it meets certain quality standards and is used for beneficial purposes, such as irrigation or toilet flushing45. A CIR (Credit Interpretation Request) is a process to seek clarification on a specific credit or prerequisite in a LEED rating system, but it does not change the definition of blackwater or greywater.

Greywater Reuse | WaterSense | US EPA4

Greywater - California Department of Water Resources5

What Is Greywater? What Is Blackwater? | HomeServe USA1

Grey Water / Reclaimed Water | University of Maryland Extension2

What is meant by the terms Gray water and black water3

Credit Interpretation Requests (CIRs) | U.S. Green Building Council

receptacle load is the electrical load that is connected to the building’s electrical system through receptacles (also known as outlets or sockets). Receptacle load includes both regulated and non-regulated loads, such as computers, printers, monitors, lamps, refrigerators, microwaves, coffee makers, etc. Receptacle load does not include hard-wiredequipment, such as lighting fixtures, HVAC systems, or elevators12.

Receptacle load is one of the major components of plug and process loads (PPLs), which consume about 47% of primary energy in U.S. commercial buildings2. Reducing receptacle load can help improve building energy efficiency and achieve LEED certification. One of the strategies to reduce receptacle load is to use automatic receptacle controls, which are devices that turn off or reduce power to receptacles when they are not in use. Automatic receptacle controls are required by ANSI/ASHRAE/IES Standard 90.1-2019: Energy Standard for Buildings Except Low-Rise Residential Buildings, as well as NIH DRM 10.5.313.

vocs are volatile organic compounds that can evaporate from paints, solvents, adhesives, and other building materials. They can cause health problems such as eye irritation, respiratory distress, headaches, and cancer. Limiting the concentration of vocs in the air protects the health of construction personnel by reducing their exposure to these harmful substances12.

References :=

Occupational Hygiene - Occupational Exposure Limits | CCOHS

1910.1450 - Occupational exposure to hazardous chemicals in laboratories. | Occupational Safety and Health Administration