Potential and Opportunities Study (MWDOC 2021) and assumes a 1.9% decrease in annual residential demand from 2025 to 2030, at which point passive conservation remains constant going forward. Details are provided in Appendix G – MWDOC Demand Forecast Model (see DWR Table 4-3 ).
Water Use of Lower Income Households
In accordance with Water Code Section 10631.1(a), The water demand projections developed by MWDOC include projected water use for single-family and multifamily residential housing needed for lower income households, as defined in Section 50079.5 of the Health and Safety Code (see DWR Table 4-3 ). MWDOC’s Demand Forecast Model accounted for the entire IRWD service area population (all income levels), thereby incorporating demand projections for lower income households. Lower income households are defined as persons and families whose income does not exceed the qualifying limits for lower income families as defined by federal standards. Table 4 - 3. DWR Submittal Table Retail: Inclusion in Water Use Projections
Submittal Table 4-3 Retail: Inclusion in Water Use Projections Water Code Section 10631 (a), 10631 (d)(4)(A), and 10631 (d)(4)(B) Are Future Water Savings Included in Projections? Drop down list (y/n) If "Yes" to above, state the section or page number , in the cell to the right, where citations of the codes, ordinances, or otherwise are utilized in demand projections are found. Optional Suppliers may complete Optional Submittal Table 4-4 R to quantify the expected savings. Are Lower Income Residential Demands Included In Projections? Drop down list (y/n) Optional If the method for accounting Lower Income Residential Demands has been included, provide page number where this accounting can be found. DWR NOTES: Additional guidance is provided in Appendix K.
Yes
Appendix G
Yes
NOTES: Future water savings as described in the CWC (those resulting from codes, standards, or ordinances) are included in the normal year projections developed by MWDOC. See Appendix G - 2025 Orange County Water Demand Projection Model Technical Memorandum.
Climate Change Considerations on Customer Water Use
Climate change has uncertainties when it comes to customer water use. Uncertainties with the timing, magnitude and regional impacts of temperature and hydrologic changes as a result of climate change are concerns for long term water resource planning. In the future, weather
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IRWD – 2025 Urban Water Management Plan
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