Camanche Reservoir Water Treatment Plant

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Camanche Reservoir Water
 Treatment Plant Project
     Progress Update
                       Camanche Reservoir South Shore (CASS)
                       Camanche Reservoir North Shore (CANS)

                                        Cecilia Zamora
                                        Evangelina Reyes
                                        Kathryn Garcia
                                        Michael Bockrath
                                            03/10/04
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                    Project Review
   Objectives
    – Single Water Treatment Plant
          Serving both South Shore and North Shore
          Supply pipeline through Camanche reservoir to existing North
           Shore storage tanks
    – Minimum Capacity
          0.5 Million Gallons Per Day
          100% redundancy
    – Expandable to up to 2 Million Gallons Per Day
    – Water quality regulations
          Current and Future
    – Reduce O&M cost
      Project Review   (continued)




Existing
Proposed
               Project Review              (continued)



   Scope
    – Existing conditions
    – Regulations
          Small Systems
    – Analysis
          Sustainability
          Constructability
          Cost
    – Negative Declaration – EBMUD regulations
    – Calculations, specifications, and drawings
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                   Alternatives
   Discarded Options
    – No Build Option
    – Retrofit of Existing Plants
    – New Consolidated Plant
          North Shore Location
            – Raw water from Camanche reservoir
            – Raw water from Mokelumne Aqueduct
            – Groundwater
             Alternatives         (continued)




   Remaining Alternatives
    – South Shore Location
        Groundwater

        Raw water from Camanche reservoir

        Raw water from Mokelumne Aqueduct
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                            Problems
   Allocation of time
    – Environmental assessment
   Research and data collection
    – Exempt from county regulations
          No response from main office in Oakland
    – Difficulty in obtaining data for systems
          Specifications
          Costs
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                  Regulations
   Surface Water Treatment Rule
    – Long Term 1 Enhanced Surface Water Treatment Rule
 Total Coliform Rule
 Contaminants
    – Stage 1 Disinfection By-Product Rule
    – Filter Backwash Rule
    – Chemical Monitoring Rule
    – Radionuclides
   Public Notification/ Consumer Confidence Reports
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                         Systems
 Conventional Treatment
 Bag and Cartridge
 Membrane Filtration
    – Micro Filtration
    – Ultra Filtration
    – Nano Filtration
    – Reverse Osmosis
                                     Systems                                     (continued)



        General Filtration Characteristics
      General Filtration Characteristics
Operating
Pressures, psi                     100                 30        20     10           5
Molecular Range,
Daltons                        200       1,000    100,000
Size, m m                          0.001        0.010 0.100                  1                      10                   100      1,000
                                                  Viruses                                Bacteria
                             Aqueous Salts                                                          Algae
 Relative size of
                                         Humic Acids                             Cryposporidium and Giardia Cysts              Sand
various materials
                            Metal Ions
     in water
                                                                                 Clays                    Silts
                                                                                     Asbestos Fibers

                    Reverse Osmosis
                              Nanofiltration
   Separation
                                               Ultrafiltration
   Processes
                                                                 Microfiltration
                                                                                                Conventional Treatment
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                            Costs
   Budgetary System Costs
    – Complete System Costs
    – Operation and Maintenance Costs
          Values provided by Montgomery Watson


   Trade-offs
    – Set of Trade-offs
    – Trade-off Analysis
                                    Costs             (continued)



     System Costs
        – Complete membrane systems
                 Microfiltration:           $1.5 Million +10%

                 Ultrafiltration:            $2.5 Million +10%

                 Nanofiltration:            $3 Million +10%

                 Reverse Osmosis:           $3 Million +25%

*   Prices do not include building facility or installation
                         Costs               (continued)



   Estimated O&M costs for membrane systems
  COMPLETE
                          OPERATION AND MAINTENANCE COSTS
   SYSTEM
(membrane elements,
                              Labor
 piping and tubing,
                         (backwash, filter                 Power    Chemical costs
 valves, pumps, and
                         cleaning, visits)
 control equipment)

 Microfiltration      $50,000 to $100,000           $10k to $20k   $60k to $90k
 Ultrafiltration      $50,000 to $100,000           $10k to $20k   $60k to $90k
 Nanofiltration       $50,000 to $100,000           $30k to $60k   $80k to $120k
Reverse Osmosis       $50,000 to $100,000           $40k to $90k   $90 to $140k
                     Costs       (continued)



   Set of Trade-offs
    – Identifying Key Measures of Effectiveness
    – Evaluating the Alternatives
    – Perform trade-offs with cost as an independent
      variable
   Trade-off Analysis
    – One illustration of the Trade-off analysis
Acceptable
             Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
Schedule Update
              Overview
 Project Review
 Alternatives
 Problems
 Regulations
 Systems
 Costs
 Schedule Update
 Summary
                    Summary
   Single Water Treatment Plant
    - South Shore Location
    - Mokelumne Aqueduct water source
    - Membrane filtration system
Questions

				
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posted:10/5/2012
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