1. Cornerstone Engineering Group The Foundation for Your Civil Engineering Needs Camanche Reservoir Water Treatment Plant Project Cecilia Zamora Evangelina Reyes Kathryn Garcia Michael Bockrath 04/28/04 Camanche Reservoir South Shore (CASS) Camanche Reservoir North Shore (CANS) Final Design

2. Overview Project Review – Overview w Approach – Alternatives Design Features – Membrane Selection w Obstacles – Constructability w Sustainability – Environmental Impact Final Design – Final Recommendations w Future Requirements – Vendor Selection w Costs Schedule Summary

3. 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

4. Project Review (continued) Existing Proposed

5. Project Review (continued) Approach – Evaluate Alternatives No Build Retrofit Existing Plants New Consolidated Plant – Regulations Existing Future – Cost Analysis – Calculations & Drawings

6. Overview Project Review – Overview w Approach – Alternatives Design Features – Membrane Selection w Obstacles – Constructability w Sustainability – Environmental Impact Final Design – Final Recommendations w Future Requirements – Vendor Selection w Costs Schedule Summary

7. 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)

8. 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 f AutoCAD – Unavailability of topographic data Utilize project drawings from client

9. 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

10. 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

11. 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

12. Design Features (continued) Sustainability (continued) – Chemicals Purchase chemicals as needed Environmental Impact – Mitigated Negative Impact Statement No Significant Potential Impacts

13. Overview Project Review – Overview w Approach – Alternatives Design Features – Membrane Selection w Obstacles – Constructability w Sustainability – Environmental Impact Final Design – Final Recommendations w Future Requirements – Vendor Selection w Costs Schedule Summary

14. 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

15. Final Design

16. Final Design (continued) Vendor Selection – Vendor scored 1 to 3 (3 for best 1 for worst)

17. 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%

18. 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

19. Overview Project Review – Overview w Approach – Alternatives Design Features – Membrane Selection w Obstacles – Constructability w Sustainability – Environmental Impact Final Design – Final Recommendations w Future Requirements – Vendor Selection w Costs Schedule Summary

20. Schedule Causes for delay – Vendor Selection and Participation Costs, Specifications, and drawings – Difficulties obtaining profile data Modification – Environmental Impact Checklist – Risk Analysis

21. Overview Project Review – Overview w Approach – Alternatives Design Features – Membrane Selection w Obstacles – Constructability w Sustainability – Environmental Impact Final Design – Final Recommendations w Future Requirements – Vendor Selection w Costs Schedule Summary

22. Single Water Treatment Plant – South Shore Location – Mokelumne Aqueduct water source – Membrane filtration system Ultra Filtration Modules Ultraviolet Disinfection

23. Acknowledgements Mentors Andy Enos – East Bay Municipal Utility District Dr. Gary Litton – University of the Pacific Instructors Dr. David Fletcher – University of the Pacific Dr. Abel Fernandez – University of the Pacific Dr. Camilla Saviz – University of the Pacific Organizations Michael Price – Montgomery Watson Simon Morris – Infilco Degremont, Inc. Joseph Spano – Department of Health Services Dave Remick – Department of Health Services

24. Questions