OCWD Management Area
Table 10-2: Approaches to Refilling the Basin
APPROACH
DISCUSSION
Decrease Total Water Demands
• Increase water conservation and water-use efficiency measures
Decrease BPP
• Allows groundwater levels to recover rapidly • Decreases revenue to the OCWD • Increases water cost for groundwater producers • Does not require additional recharge facilities • Dependent upon other sources of water (e.g., imported water) being available to substitute for reduced groundwater pumping Replenishment could be in the form of in-lieu water (additional imported water delivered to groundwater producers instead of groundwater pumping) • Water transfers and exchanges could be utilized to provide the increased supply of recharge water • • Dependent on increased supply of recharge water • May be dependent on building and maintaining excess recharge capacity (which may be underutilized in non-drought years)
Increase Recharge
Combination of the Above
• A combination of the approaches provides flexibility and a range of options for refilling the basin
10.6 DETERMINATION OF MINIMUM THRESHOLDS
The minimum threshold for significant and unreasonable reduction in groundwater in storage is reached when the storage volume of the groundwater basin falls below the operating range of up to 500,000 acre-feet below full condition for an extended period of time.
BASIN 8-1 ALTERNATIVE 2022 UPDATE
Sustainable Management: Basin Storage 10-1
Appendix F - 162
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