cornerstone engineering group the foundation for your civil engineering needs camanche reservoir...
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Cornerstone Engineering Cornerstone Engineering GroupGroup
The Foundation for Your Civil Engineering NeedsCamanche Reservoir Water Camanche Reservoir Water Treatment PlantTreatment Plant Project Project
Cecilia Zamora
Evangelina Reyes
Kathryn Garcia
Michael Bockrath
04/28/04
Camanche Reservoir South Shore (CASS)
Camanche Reservoir North Shore (CANS)
Final DesignFinal Design
Overview Project Review
– Overview Approach– Alternatives
Design Features– Membrane Selection Obstacles– Constructability Sustainability– Environmental Impact
Final Design– Final Recommendations Future Requirements– Vendor Selection Costs
Schedule Summary
Project Review Overview
– 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)
Approach– Evaluate Alternatives
No Build Retrofit Existing Plants New Consolidated Plant
– Regulations Existing Future
– Cost Analysis– Calculations & Drawings
Overview Project Review
– Overview Approach– Alternatives
Design Features– Membrane Selection Obstacles– Constructability Sustainability– Environmental Impact
Final Design– Final Recommendations Future Requirements– Vendor Selection Costs
Schedule Summary
Design Features Membrane Selection
– Types of Membranes Micro Filtration Ultra Filtration Nano Filtration Reverse Osmosis
– Ultra Filtration Selected Log credits Budgetary Costs Chemical Byproducts (TTHM)
Design Features (continued)
Obstacles– Obtaining information from vendors
Data Sheets & Technical Information Costs and Pricing System Specifications & Drawings
– Creation of profile from incompatible programs 3D TopoQuads AutoCAD
– Unavailability of topographic data Utilize project drawings from client
Design Features (continued)
Constructability– Pre-fabricated fully assembled system
Skid mounted modules ready for operation Easily expandable up to 2.0 Million Gallons per Day
– Fully-automated controls Remote monitoring limits operator attention Automated chemical dosing for disinfection Cleaning in place
Design Features (continued)
Constructability (continued)
– Operator training provided by Manufacturer Ultraviolet system
– Operation, cleaning, sampling, maintenance
– Building layout Adequate space for system expansion Adequate clearance and spacing for operators
– Performing maintenance and daily procedures
Design Features (continued)
Sustainability– Building
Storage space Office space Laboratory testing space Repair/shop space/work space
– Maintenance Calibration of equipment Building maintenance Annual Water System inspections
Design Features (continued)
Sustainability (continued)
– Chemicals Purchase chemicals as needed
Environmental Impact– Mitigated Negative Impact Statement
No Significant Potential Impacts
Overview Project Review
– Overview Approach– Alternatives
Design Features– Membrane Selection Obstacles– Constructability Sustainability– Environmental Impact
Final Design– Final Recommendations Future Requirements– Vendor Selection Costs
Schedule Summary
Final Design Final Recommendations
– Ultra Filtration Membrane System– Ultraviolet Disinfection
Multiple Barrier
– Supply Lines 10-inch Diameter Pipe from Aqueduct 8-inch Diameter Pipe to Storage Tanks Booster Pump to North Shore Tanks
Future Requirements– Room for Additional Skids– Expansion of Ultraviolet System– Additional pumps to South Shore Tanks
Final Design
Final Design (continued)
Vendor Selection
– Vendor scored 1 to 3 (3 for best 1 for worst)
Attributes WeightNormalized weight Aquasource Zenon Hydranautics
Log credit removal (Giardia, Cryptosporidium, viruses)
Pass or Fail P F P
Particle size removal 0.10 0.26 2 2 2Applied feed pressure 0.09 0.24 3 1 2Number of modules 0.08 0.21 3 1 2Chemical addition 0.05 0.13 2 3 1Recovery 0.03 0.08 3 1 2Vendor relationship 0.01 0.03 3 1 2Backwash duration 0.01 0.03 2 1 3Backwash frequency 0.01 0.03 3 1 2
Totals 0.38 1.00 2.13 1.94 1.92
Evaluation Criteria Vendor Scores
Final Design (continued)
Costs– Estimated price
Obtained from Aquasource manufacturer 16-module skid, strainer, backwash pump, clean in place
system, and controls.
$1 Million +/- 10%– One year operation and maintenance cost
estimated from MWH costs
$171,000 +/- 25%
Final Design (continued)
Costs– Pipeline cost
including tees, fittings and valves for all connections
$1.1 Million +/- 10%– Pipeline across water
$962,500 +/- 25%
– Ultraviolet System Megatron 250M with digital monitor and automatic wiper
– Excluding Installation, Training and Power required
$28,175
Overview Project Review
– Overview Approach– Alternatives
Design Features– Membrane Selection Obstacles– Constructability Sustainability– Environmental Impact
Final Design– Final Recommendations Future Requirements– Vendor Selection Costs
Schedule Summary
ScheduleSchedule Causes for delay
– Vendor Selection and Participation Costs, Specifications, and drawings
– Difficulties obtaining profile data
Modification– Environmental Impact Checklist– Risk Analysis
ID WBS Task Name Duration
1 1 Camanche resevoir water treatment plant 76 days
2 1.1 Proposal 38 days
3 1.1.1 cover letter 2 days
4 1.1.2 scope of work and objectives 5 days
5 1.1.3 schedule 5 days
6 1.1.4 Preliminary Proposal 0 days
7 1.1.5 Proposal Presentation 0 days
8 1.1.6 Revised Proposal 3 days
9 1.2 Research Phase 48 days
10 1.2.1 Watershed surveying 5 days
14 1.2.2 Camanche Water Facility 6 days
19 1.2.3 Regulations 35 days
25 1.2.4 Environmental assessment 33 days
29 1.2.5 Possible Alternatives 15 days
34 1.2.6 Evaluation of Alternatives 20 days
39 1.2.7 Progress Presentation 0 days
40 1.3 Design Phase 35 days
41 1.3.1 Water Treatment Design 18 days
42 1.3.1.1 Selection of Membrane system selection(based on cost and performance)18 days
43 1.3.2 Drawings 18 days
44 1.3.3 Specifications 35 days
45 1.3.4 Project cost analysis 15 days
46 1.3.5 Risk Analysis 15 days
47 1.3.6 Ethical considerations 5 days
48 1.3.7 Constructability 5 days
49 1.3.8 Sustainability 5 days
50 1.3.9 Final draft ready for evaluation 0 days
51 1.4 Group Meeting 76 days
83 1.5 Website 70 days
84 1.6 Final Presentation 0 days
85 1.7 Final Report 0 days
1/23
2/2
3/10
4/30
Mike
4/28
5/3
Jan 4, '04 Jan 25, '04 Feb 15, '04 Mar 7, '04 Mar 28, '04 Apr 18, '04 May 9, '04
Overview Project Review
– Overview Approach– Alternatives
Design Features– Membrane Selection Obstacles– Constructability Sustainability– Environmental Impact
Final Design– Final Recommendations Future Requirements– Vendor Selection Costs
Schedule Summary
Summary Single Water Treatment Plant
– South Shore Location– Mokelumne Aqueduct water source– Membrane filtration system
Ultra Filtration Modules Ultraviolet Disinfection
AcknowledgementsMentors
Andy Enos – East Bay Municipal Utility District
Dr. Gary Litton – University of the Pacific
InstructorsDr. David Fletcher – University of the Pacific
Dr. Abel Fernandez – University of the Pacific
Dr. Camilla Saviz – University of the Pacific
OrganizationsMichael Price – Montgomery Watson
Simon Morris – Infilco Degremont, Inc.
Joseph Spano – Department of Health Services
Dave Remick – Department of Health Services
Questions