Impact Area Alignment: Decarbonization ♦ Quality of Life ♦ Ecological Conservation and Restoration
影响领域对齐：脱碳 ♦ 生活质量 ♦ 生态保育与修复
To reduce potable water consumption and the associated energy consumption and carbon emissions required to treat and distribute water and preserve potable water resources through an efficiency-first approach.
通过效率优先的方法减少饮用水消耗及水处理和分配所需的能耗和碳排放，保护饮用水资源。
Meet all minimum water efficiency requirements outlined below, as applicable to the project scope.
满足以下所有最低水效率要求（视项目范围适用）：
Option 1. Prescriptive Path — Maximum Flush and Flow Rates
选项1：规定路径 — 最大冲水量和流量
| Fixture or Fitting | IP (max) | SI (max) |
|---|---|---|
| Toilet (water closet)* | 1.28 gpf | 4.8 lpf |
| Urinal* | 0.50 gpf | 1.9 lpf |
| Public lavatory 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 |
Option 2. Performance Path — Calculated Reduction
选项2：性能路径 — 计算减量
Reduce aggregate water consumption by 20% from the baseline.
从基准值减少20%的总用水量。
| Appliance | Requirement | 要求 |
|---|---|
| Residential clothes washer | ENERGY STAR® or equivalent |
| Commercial clothes washer (≤ 8.0 cu ft) | ENERGY STAR® or equivalent |
| Residential dishwasher | ENERGY STAR® or equivalent |
| Prerinse spray valves | ≤ 1.3 gpm (4.9 lpm) |
| Ice machine | ENERGY STAR® + air-cooled/closed-loop |