855773520-LEED-v5-ID-C-Reference-Guide-Launch-Edition-1 - Page 083
Extracted Content
Table 1. Maximum installed flush or flow rates for prescriptive path
| Fixture or fitting | Maximum installed flush or flow rate (IP) | Maximum installed flush or flow rate (SI) |
|---|---|---|
| Toilet (water closet)* | 1.28 gpf** | 4.8 lpf** |
Urinal* | 0.50 gpf | 1.9 lpf |
Public lavatory (restroom) faucet | 0.50 gpm | 1.9 lpm |
Private lavatory faucets* | 1.50 gpm | 5.7 lpm |
Kitchen faucet | 1.8 gpm | 6.8 lpm |
Showerhead* | 2.00 gpm | 7.6 lpm |
*The WaterSense label is available for this fixture type. WaterSense-labeled fixtures are recommended for projects located in the U.S. and Canada.
**For dual-flush toilets, the full flush volume shall be equal to or less than 1.28 gpf / 4.8 lpf; a weighted average cannot be used.
OR
OPTION 2. PERFORMANCE PATH — CALCULATED REDUCTION
For all the new and existing fixtures and fittings within the tenant space, reduce aggregate water consumption by 20% from the baseline listed in Table 2.
Table 2. Baseline water consumption of fixtures and fittings
| Fixture or fitting | Baseline installed flush or flow rate (IP) | Baseline installed flush or flow rate (SI) |
|---|---|---|
| Toilet (water closet)* | 1.6 gpf** | 6.0 lpf |
Urinal* | 1.0 gpf | 3.8 lpf |
Public lavatory (restroom) faucet | 0.50 gpm at 60 psi | 1.9 lpm at 415 kPa |
Private lavatory faucets* | 2.2 gpm at 60 psi | 8.3 lpm at 415 kPa |
Kitchen faucet | 2.2 gpm at 60 psi | 8.3 lpm at 415 kPa |
Showerhead* | 2.5 gpm at 80 psi per shower stall | 9.5 lpm at 550 kPa per shower stall |
*The WaterSense label is available for this fixture type. WaterSense-labeled fixtures are recommended for projects located in the U.S. and Canada.
**For dual-flush toilets, the full flush volume shall be equal to or less than 1.28 gpf / 4.8 lpf; a weighted average cannot be used.
AND
Minimum Equipment Water Efficiency
Newly installed appliances, equipment, and processes within the tenant space must meet the requirements listed in Tables 3 and 4 below. Existing appliances and equipment can be excluded.
U.S. Green Building Council LEED v5 Reference Guide for Interior Design and Construction, April 2025 Launch Edition 72