OCWD Management Area
Figure 3-15: OCWD Groundwater Basin Model Boundaries
OCWD staff update the basin groundwater model approximately every three to five years. Major changes and improvements since the 2017 Alternative was submitted include:
1. Extension of the model transient calibration through WY2016-17. The new calibration period is November 1990 to June 2017 which includes a wide range of basin storage conditions as well as a wide range of hydrologic conditions.
2. Addition of new recharge basin, La Palma Basin.
3. Updating aquifer parameters, i.e., hydraulic conductivity and storage parameters, changes during calibration (still in progress).
4. Model layer revision in Irvine Sub Basin area.
3.3.1 Groundwater Quality Conditions
Salinity
BASIN 8-1 ALTERNATIVE 2022 UPDATE
Management Area Description 3-19
Appendix F - 99
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