B.4 Supplies Contributing to Regional Self-Reliance
For a covered action to demonstrate consistency with the Delta Plan, WR P1 subsection (c)(1)(C) states that water suppliers must report the expected outcomes for measurable improvement in regional self-reliance. Water supplies that are assumed to contribute to regional self-reliance are shown in Table B-2. Table B-2 indicates the expected outcomes for IRWD supplies contributing to regional self- reliance. These results demonstrate that IRWD’s service area is continuously improving its regional self-reliance.
Table B-2: Calculation of Supplies Contributing to Regional Self-Reliance
Water Supplies Contributing to Regional Self-Reliance (Acre-Feet)
Baseline (2010)
2015
2020
2025
2030
2035
2040
2045
Water Use Efficiency
-
37,849 41,260
53,909 71,664
71,617 71,643
72,311
Water Recycling
26,203 37,335
25,359 29,478
33,758 33,762
33,812 33,758
Stormwater Capture and Use Advanced Water Technologies
-
-
-
-
-
-
-
-
14,236 20,565
23,613 23,613
24,565 24,565
24,565 24,565
Conjunctive Use Projects
-
-
-
-
-
-
-
-
Local and Regional Water Supply and Storage Projects Contribute to Regional Self-Reliance Water Supplies Contributing to Regional Self-Reliance Service Area Water Demands without Water Use Efficiency (Acre-Feet) Service Area Water Demands without Water Use Efficiency Accounted For Change in Regional Self Reliance (Acre-Feet) Water Supplies Contributing to Regional Self-Reliance Change in Water Supplies Contributing to Regional Self-Reliance Percent Change in Regional Self Reliance (As Percent of Demand w/out WUE) Percent of Water Supplies Contributing to Regional Self-Reliance Change in Percent of Water Supplies Contributing to Regional Self-Reliance
28,914 28,914
28,914 41,267
34,000 34,000
34,000 34,000
-
-
-
-
-
-
-
-
69,353 124,663
119,146 148,267
163,987 163,944
164,021 164,634
Baseline (2010)
2015
2020
2025
2030
2035
2040
2045
116,710 139,821
137,705 150,465
158,539 159,088
159,656 160,354
Baseline (2010)
2015
2020
2025
2030
2035
2040
2045
69,353 124,663
119,146 148,267
163,987 163,944
164,021 164,634
55,310 49,793
78,913 94,634
94,591 94,667
95,281
Baseline (2010)
2015
2020
2025
2030
2035
2040
2045
59.4% 89.2% 86.5% 98.5% 103.4% 103.1% 102.7% 102.7%
29.7% 27.1% 39.1% 44.0% 43.6% 43.3% 43.2%
Appendix B - 9
IRWD – 2025 Urban Water Management Plan – Reduced Delta Reliance
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