Oxnard Water GREAT Program Desalter

The GREAT Program Desalter (Desalter) is the first of several key elements of the GREAT Program to be designed and constructed. It will be sited at the City's Water Yard located at 251 South Hayes Avenue and is intended to serve blended quality water to City residents and possibly, a higher quality of water (equivalent to unblended Calleguas Municipal Water District (CMWD) water quality) to the Port Hueneme Water Agency (PHWA). Preliminary and advanced planning for the Desalter is based on the GREAT Program Advanced Planning Study (Kennedy/Jenks Consultants/Malcom-Pirnie/CH2M Hill, May 2002). Additional master planning documents associated with the GREAT Program include, but are not necessarily limited to: the Oxnard/PHWA Joint Economic Evaluation Study (Kennedy/Jenks Consultants and Willdan), the 2000 Urban Water Management Plan (Kennedy/Jenks Consultants), the SCADA Master Plan (ProUSys), the Hydrogeologic Well Assessment and Future Well Siting Study (Richard C. Slade and Associates), the Blending Station #1 Master Space Plan (Mainstreet Architects+Planners) and the Blending Station #1 Geotechnical Investigation Report (Earth Systems Southern California). The complete geotechnical report is included with the RFQ/RFP below. The rest of the aforementioned studies, investigations and reports were prepared by various consultants and are available for review either online or by contacting the City of Oxnard Water Division.

Elements of the Desalter identified in the Advanced Planning Study and related planning documents include, but are not necessarily limited to, the following:

Demolition and Sitework

Process Plant and Yard Piping

Electrical Room

SCADA Control Room

Vistors Center/Gallery

Integrated Security/Main Visitor Entrance Structure

Public Restroom Facility

Landscaping and Irrigation

Building Sized to Accommodate Treatment Capacity of 15.0 mgd of Permeate

Approved Reverse Osmosis (RO) Treatment System

Laboratory

Cartridge Filtration System, 5 um Nominal Cutoff Size

RO Feed Pumps

600,000-gallon Permeate Welded Steel Water Storage Tank (not part of this contract)

Permeate Booster Pump Systems

Approved Process Related Chemical Storage and Feed Systems

Supervisory Control and Data Acquisition (SCADA) System Design and Intergration (owner furnished equipment provided by ProUSys under a separate agreement)

Although the GREAT Program Advanced Planning Study recommended standard RO as the primary treatment process, the City is current considering two alternative primary treatment processes (large diameter RO and pellet softening) and an additional treatment technology utilizing ultra-high lime aluminate that could increase recovery by reducing the amount of RO brine.

These processes are currently being pilot tested to determine whether they have the potential to improve the project economics and/or water yield of the Desalter. The testing was completed November 2003, with analysis of the data to be available by spring 2004. Based upon pilot plant test results, the performance of the systems will be evaluated and process design criteria identified for each system tested. If any of these technologies are selected over standard RO as a result of pilot testing, the resulting additions/deletions and/or revisions will be incorporated accordingly. The City will work with the selected consultant to modify the scope of the Desalter, if necessary, and as may be required. The pilot work is being performed by Kennedy/Jenks Consultants with the final report peer-review being performed under a separate agreement with Black & Veatch Consultants.

The City is also currently in the process of preparing a draft Environmental Impace Report (EIR) for the GREAT Program. CH2M Hill is the consulting firm tasked with preparing the environmental document under a separate agreement with the City. You may review the Notice of Preparation (NOP) online. The draft EIR should be available for public review in February 2004.

Below are links to the GREAT Program Desalter Request for Qualifications/Request for Proposals for the GREAT Program Desalter Project. If you have any questions, please contact the Water Division or use our feedback form.

GREAT Program Desalter RFQ/RFP - Part 1	(3.0 MB)
GREAT Program Desalter RFQ/RFP - Part 2	(4.5 MB)
GREAT Program Desalter RFQ/RFP - Part 3	(3.2 MB)
GREAT Program Desalter RFQ/RFP - Part 4	(1.5 MB)