View File - Development Services - City of Oxnard

WATER RESOURCES TECHNICAL REPORTgroundwater (1,407 AF) and to growers that use water from the PTP system (1,407 AF).It is assumed that this recycled water is distributed equally to the wells used by thosegrowers based on the historical pumpage of those wells. This includes the five LAS wellson the PTP system. It is also assumed that this water is distributed equally over the9-month growing season resulting in those wells not pumping that quantity of waterover this time. The location of the wells used for agricultural irrigation by growers alongthe OVMWD Ocean View pipeline and wells by growers that use water from the PTPsystem are shown in Figure 3-7 and 3-5, respectively. These wells are completed in boththe UAS and LAS.• Groundwater Recovery. The 2,814 AFY of water, recharged to groundwater bydelivering the recycled water in lieu of pumping for agricultural irrigation, arerecovered by extracting this amount of groundwater from wells at the City Water Yard(Nos. 20, 21, 22, and 23) and from wells at the UWCD El Rio wellfield. It is assumed thatthis groundwater is pumped on a continuous, year-round basis to help meet the potabledemands of the City. For Scenario 1a, it is assumed that 20 percent of this water isrecovered at the UWCD El Rio wellfield; and 80 percent is at the City Water Yard. ForScenario 1b, it is assumed that the percentages are reversed, so that 80 percent of thiswater is now recovered at the UWCD El Rio wellfield; and 20 percent is recovered at theCity Water Yard. It is assumed that the groundwater is extracted from the wells asfollows:Groundwater Recovery for Scenarios 1a and 1bScenario 1aScenario 1bLocation Well Pumpage Well PumpageCity Water Yard#20 (LAS)500 AFY (310 gpm)#20 (LAS)0 AFY#21 (LAS)551 AFY (341 gpm)#21 (LAS)0 AFY#22 (UAS)600 AFY (372 gpm)#22 (UAS)300 AFY (186 gpm)#23 (UAS)600 AFY (372 gpm)#23 (UAS)263 AFY (163 gpm)O-H SystemEl Rio # 15300 AFY (186 gpm)El Rio # 6300 AFY (186 gpm)(All UAS Wells)El Rio # 2A263 AFY (163 gpm)El Rio # 4151 AFY (94 gpm)El Rio # 5300 AFY (186 gpm)El Rio # 7300 AFY (186 gpm)El Rio # 8300 AFY (186 gpm)El Rio # 15300 AFY (186 gpm)El Rio # 2A300 AFY (186 gpm)El Rio # 11300 AFY (186 gpm)W112003002SCO LW1458.DOC/ 033390002 75