2025 Orange County Water Demand Projection Model
Agency
Other Use (Percent of Volume Billed)
Buena Park
8%
East Orange CWD
12%
El Toro WD
3% 6% 4% 8% 6% 6% 6%
Fountain Valley
Fullerton
Garden Grove GSWC Cowan GSWC Placentia
GSWC Orange
Huntington Beach
11%
Irvina Ranch WD
5% 4% 4% 8%
La Habra La Palma
Laguna Beach
Mesa Water
13%
Moulton Niguel Newport Beach
5% 8% 6% 4% 6% 6% 4% 4% 5% 2%
Orange City
San Clemente
San Juan Capistrano
Santa Ana
Santa Margarita WD
Seal Beach
Serrano WD
South Coast WD
Trabuco Canyon WD
16% 12%
Tustin
Westminster
8%
Yorba Linda WD
10%
Calibrated models with other uses are used to forecast future total water use 2 .
4.1 Baseline Scenario Assumptions Future growth in driver units (housing and jobs) was tied to CDR projections through 2050. Future conditions for all other explanatory variables were selected to represent expected changes or to remain constant. Table 4-3 summarizes the baseline demand scenario assumptions for driver units and explanatory variables.
2 Values of calibration factors (Table 4-1) and other uses % (Table 4-2) may change from these initial values as agencies refine their individual model.
4-3
Appendix G - 56
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