View File - Development Services - City of Oxnard

WATER RESOURCES TECHNICAL REPORTCity. Blending Station No. 5 would provide improved water supply reliability, waterquality, and hydraulic efficiencies and assist in meeting peak-hour and fire-flow demandsfor water. The 15-mgd blending station would consist of two 18-inch pipelines, one fromCMWD and one from UWCD, each equipped with a flow control valve and flowmeter. Thepipelines would be housed within a one-story metal structure with a canopy and openmetal grid walls. Associated electrical and storage facilities required for operation of theblending station would be housed in a separate one-story enclosed building. No pumps ortreatment chemicals would be required for operation of the blending station. BlendingStation No. 5 would be located on the south side of Pleasant Valley Road within a 1-acrevacant site located between Terrace Avenue and Longfellow Way east of the VenturaCounty Railroad as shown in Figure 4-2.The blending station would blend potable water from the UWCD O-H pipeline with potablewater from the CMWD Industrial Lateral. The O-H pipeline is located north of the blendingstation site within Pleasant Valley Road right-of-way; therefore, a connection betweenBlending Station No. 5 and the O-H pipeline would be required. This pipeline would beapproximately 100 feet in length and 18 inches in diameter. The Industrial Lateral is locatedwest of the blending station site; therefore, a 100-foot long 18-inch-diameter pipelineconnector would be required to connect Blending Station No. 5 to the Industrial Lateral.Other miscellaneous yard piping would be required within the 1-acre blending station site.After potable water from the two sources is blended, conveyance to the City potable waterdistribution system would be required. A 20-inch-diameter, 2,200-foot blended-waterpipeline connection would be constructed. The blended-water pipeline connection wouldtravel from Blending Station No. 5 east along Pleasant Valley Road to connect to theCity potable water distribution system at the intersection of Pleasant Valley Road andRose Avenue. Major pipeline facilities associated with Blending Station No. 5 are shownin Figure 4-2.4.3.7 Concentrate DisposalConsistent with current City wastewater treatment plant operations, concentrate from theregional desalter would be discharged to the existing sanitary sewer.4.4 Phase 2 ElementsPhase 2 of the GREAT Program primarily involves expansion of the treatment andconveyance capabilities of Phase 1 facilities and could potentially increase production oftertiary treated water up to 32.6 mgd for agricultural irrigation and non-food relatedlandscape irrigation, up to 15.3 mgd for advanced treated water for agricultural irrigationand groundwater injection, and up to 10 mgd of desalted brackish groundwater. However,actual quantities of water that would be produced under Phase 2 are unknown, and willdepend on a variety of technical and regulatory issues as well as the level of planned growththat is projected in the City’s updated general plan. These issues will need to be addressedand clarified prior to conducting a detailed environmental evaluation of Phase 2 elements,and include but are not limited to:• Participation in the GREAT Program by agricultural interests and individualbrine/concentrate dischargersW112003002SCO LW1458.DOC/ 033390002 60