View File - Development Services - City of Oxnard

WATER RESOURCES TECHNICAL REPORTirrigation prior to delivery of blended recycled water for groundwater injection (and viceversa).A new potable water line would be constructed to continue providing OVMWD customerswith potable water after conversion of the existing Ocean View pipeline to the former OceanView pipeline. The new Ocean View potable pipeline would be constructed along HuenemeRoad as shown in Figure 4-2, connecting to the Oxnard-Hueneme Pipeline on the west andexisting potable water systems to the east. The new Ocean View potable pipeline wouldconsist of approximately 22,300 linear feet of 12-inch-diameter pipeline.4.3.4 Aquifer Storage and RecoveryAquifer Storage and Recovery (ASR) would be implemented for two purposes:1. A pilot ASR program using GREAT Program recycled water blended with potable waterto meet DHS standards, would be implemented to study the technical feasibility oflarger-scale ASR in the Oxnard Plain and Pleasant Valley area.2. In addition, seasonal storage of potable water supplies would be implemented toprovide additional storage capacity for the City’s potable water supply.4.3.4.1 Pilot Aquifer Storage and RecoveryThe approach to implementing the pilot ASR program includes the placement of one pilotASR injection well, completed in the Lower Aquifer System of the Oxnard Aquifer. The pilotASR injection well would have a water injection/extraction capacity up to approximately620 gallons per minute (gpm). The pilot ASR injection well and associated facilities wouldrequire approximately 1 acre, proposed to be located in an area north of Hueneme Roadbetween the intersections of Arnold Road and Olds Road as shown in Figure 4-2, to takeadvantage of existing and planned water facilities.Facilities associated with the pilot ASR program would include:• Conveyance facilities to deliver recycled water and potable water to the pilot ASRinjection well• Blending station to comply with DHS groundwater recharge regulations (BlendingOption 2)• Pilot ASR injection well and injection-extraction pumping equipment• Observation wells to monitor water levels and water quality in response to ASRactivities• Storage and conveyance facilities for extracted waterConveyance Facilities. As discussed in Section 4.3.2, Advanced Water Treatment Facility,recycled water for groundwater injection would be conveyed from the AWTF to the pilotASR injection well via the recycled water delivery system. The pilot ASR conveyancepipeline would be constructed to connect the recycled water delivery system to the pilotASR injection well as shown in Figure 4-2. The pilot ASR conveyance pipeline would consistof approximately 200 linear feet of 10-inch-diameter pipeline, connecting the recycled waterW112003002SCO LW1458.DOC/ 033390002 56