View File - Development Services - City of Oxnard

WATER RESOURCES TECHNICAL REPORTOcean View Pipeline AreaAs noted above, the OVMWD currently serves potable water to domestic and agriculturalusers on the Oxnard Plain via the Ocean View pipeline, a City-owned facility. The OceanView pipeline in Figure 3-7 shows crop types and pumping along the Ocean View pipeline.The source of water to the Ocean View pipeline is groundwater delivered by the O-Hpipeline. The quality of water would be similar to that as shown in Table 3-1 for UWCDgroundwater quality from the City of Oxnard 2000 Consumer Confidence Report. Onaverage, the TDS of this water would be approximately 1,100 mg/L.Duck Club AreaThe Ventura County Game Preserve, often referred to as "The Duck Club," usesgroundwater to maintain its ponds and associated agricultural areas. Figure 3-8 showscrop types and pumping in the Duck Club area. The quality of pumped groundwater isvariable with individual well (Figure 2-21).3.2 Local Water Demands3.2.1 City of OxnardThe Water System Master Plan of the City (City of Oxnard, 2003) documents the existingand projected water supplies and demands of the City and includes recommendations forcapital and operational improvements that would be necessary to accommodate City needsto the year 2020. As previously described, the City has three sources of water available toserve its customers. These include (1) imported surface water from CMWD, (2) groundwaterfrom UWCD, and (3) local groundwater from City wells. The City blends the higher qualityimported water (~300 mg/L TDS) with groundwater (~1,100 mg/L) on a one-to-one basis toprovide a balance between quality and cost.The current City population of approximately 182,027 (DOF, 2002) significantly exceeds thecurrent City General Plan estimated 2020 population of 164,936, in spite of the fact that thearea covered by the current General Plan has not been completely built out yet. Otherregional planning agencies, such as the Southern California Association of Government(SCAG), have also underestimated the amount of growth that the City would experience.The future water demands of the City were estimated in the Water System Master Planthrough a comprehensive linear regression water demand analysis, which includedcalculating unit demand factors and land use zoning designations contained within theapproved 2020 General Plan. Estimates were developed of unit demand factors fromsingle-family residential, multifamily residential, commercial, industrial, agricultural, andCity users from historical use data. The projected water demands and available suppliesthrough 2020 are summarized below:W112003002SCO LW1458.DOC/ 033390002 39