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Section 7 Availability of Existing Water Supplies Table 7-2 Factors that Mav Affect Future Availabilitv (Leqal and/or Phvsical) of Supplies in Each Basin e ,• .• • o• a .m • om Increases in M&I and Self-Supplied Industrial CUs Reduction in M&I and Self-Supplied Industrial CUs such as reducing lawn areas and industrial process improvements Evaporation from new or enlarged reservoirs Return flows from CU agricultural transfers that cannot be recaptured andreused Increased reuse of existing consumable return flows Unused CU yields from an agricultural transfer that cannot be stored b M&I or SSI users New or increased transbasin diversions out of the basin Increase in transbasin im orts Increase in agricultural CU Decrease in agricultural CU . Increase in irrigated lands . Reduction in irrigated lands to lack of supplies for well . Development of additional supplies to reduce or eliminate augmentation agricultural shortages . Transfer of agricultural rights for dedication to in stream flows . Changes in irrigation efficiency such as conversion to sprinklers (increase in availability below the instream flow reach) . Changes to higher CU crops . Changes to lower CU by crops . Diversion by downstream agricultural users of increases in M&I . Changes in crop types return flows Development of irrigated lands resulting in a net increase in CU Development of irrigated lands resulting in a net decrease in CU (increased depletions per acre) (decreased depletions per acre) Additional flow requirements for species protection (e.g., endangered Runoff from increase in impervious areas species) RICDs and instream flow water rights filings (decrease in legal Return flows from increased non-tributary groundwater pumping (to availabiliiy above the water right) the extent not reused) Increase in coverage of phreatophytes or change in iype of Flow Management Agreements and/or Coordinated Reservoir phreatophytes Operations (increase in environmental or recreational flows for the s ecific reach at s ecific times Additional bypass flow requirements for existing projects Endangered species recovery by means other than flows (stocking, habitat im rovements, etc. Increase in coverage of phreatophytes or change in type of Reduction in coverage of phreatophytes or change in iype of hreato h tes hreato h tes Hydrologic variabiliiy (e.g., climate change resulting in reduced runoff Hydrologic variabiliiy (e.g., climate change resulting in increased or extended droughts) runoff or extended wet periods) ~~ ~J~~a Statew~itle Water Supply Inii'iative 7-12 S:\REPORT\WORD PROCESSING\REPORT\S7 11-10.04.DOC