View File - Development Services - City of Oxnard

WATER RESOURCES TECHNICAL REPORT−−Consistent with the effects from Scenarios 2b and 2c, the water level declines fromextractions at the El Rio wellfield, combined with the declines from City Water Yardextractions, will contribute to the increased potential to induce brief periods ofcoastal landward flow during extended, drier climatic periods. However, the effectswill be greater than those for Scenario 2c but less than those for Scenario 2b (seeScenario 2c2 hydrograph for coastal well 05G02, which twice briefly drops below sealevel for simulation period [Figure 6-27]).In the LAS, these small declines are attributed mostly to drawdown from theextractions at the City Water Yard and, consequently, will have no significant effect.These changes will result in the following reductions in overdraft:• For the UAS, the average height above the coastal water level goal will remainapproximately the same, 5.2 feet for Scenario 2b compared to 5.7 feet for the Base Case.• For the LAS, the reduction in overdraft will be 52 percent compared to the Base Case.W112003002SCO LW1458.DOC/ 033390002 94