Step 5. Landscape Irrigation and Loss Savings (Equations 2 and 6) CII 2000 Base Standard Landscape Deliveries in Daily per Indoor Irrigation and Midpoint 89.0 Capita Water Residential = = Water Loss – – Baseline GPCD Use Use, GPCD Sector Use, Year, GPCD GPCD 227.7 70.0 68.7 Landscape Irrigation Landscape and Water Loss Irrigation and = X = 0.216 19.2 GPCD Sector Use, GPCD Water Loss Savings, GPCD 89.0 Step 6. Total Savings Because are two alternative methods to calculate indoor residential savings, there are two alternatives for total savings, calculated using Equation 3. Alternative 1 (based on Target Method 4 Calculator for Indoor Residential Savings): Landscape Indoor Irrigation Metering CII Residential and Water Total Savings, Savings, 50.9 Savings, Loss = + + + = Savings, GPCD GPCD GPCD GPCD Savings, GPCD GPCD 8.3 16.5 6.9 19.2 Alternative 2 (based on default for Indoor Residential Savings): Landscape Indoor Irrigation Metering CII Residential and Water Total Savings, Savings, 49.4 Savings, Loss = + + + = Savings, GPCD GPCD GPCD GPCD Savings, GPCD GPCD 8.3 15.0 6.9 19.2 Step 7. 2020 Urban Water Use Target (Equation 1) Alternative 1 (based on Target Method 4 Calculator for Indoor Residential Savings):
Step 5. Landscape Irrigation and Loss Savings (Equations 2 and 6) Landscape Irrigation and Water Loss Sector Use, GPCD = 2000 Base Daily per Capita Water Use – Standard Indoor Residential Use, GPCD – CII Deliveries in Midpoint Baseline Year, GPCD = 89.0 GPCD 227.7 70.0 68.7 Landscape Irrigation and Water Loss Savings, GPCD = Landscape Irrigation and Water Loss Sector Use, GPCD X 0.216 = 19.2 GPCD 89.0 Step 6. Total Savings Because are two alternative methods to calculate indoor residential savings, there are two alternatives for total savings, calculated using Equation 3. Alternative 1 (based on Target Method 4 Calculator for Indoor Residential Savings): Total Savings, GPCD = Metering Savings, GPCD + Indoor Residential Savings, GPCD + CII Savings, GPCD + Landscape Irrigation and Water Loss Savings, GPCD = 50.9 GPCD 8.3 16.5 6.9 19.2 Alternative 2 (based on default for Indoor Residential Savings): Total Savings, GPCD = Metering Savings, GPCD + Indoor Residential Savings, GPCD + CII Savings, GPCD + Landscape Irrigation and Water Loss Savings, GPCD = 49.4 GPCD 8.3 15.0 6.9 19.2 Step 7. 2020 Urban Water Use Target (Equation 1) Alternative 1 (based on Target Method 4 Calculator for Indoor Residential Savings):
Methodologies-February%202016%20FINAL%20Draft.docx