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Agenda August 5, 2014 Introduction – Natalie Robottom Background and History – Rob Delaune

LaPlace Water Source Workshop. Agenda August 5, 2014 Introduction – Natalie Robottom Background and History – Rob Delaune Present Conceptual Engineering Design Proposed Tasks - Rob Delaune Discussion and Questions. LaPlace Water Source Workshop. August 5, 2014. Introduction.

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Agenda August 5, 2014 Introduction – Natalie Robottom Background and History – Rob Delaune

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  1. LaPlace Water Source Workshop • Agenda • August 5, 2014 • Introduction – Natalie Robottom • Background and History – Rob Delaune • Present Conceptual Engineering Design Proposed Tasks - Rob Delaune • Discussion and Questions

  2. LaPlace Water Source Workshop August 5, 2014

  3. Introduction • Goal is to provide solution for Water Supply in LaPlace • Variables that have changed since study completed in 2006 on proposed water plant for east bank of St. John • Reverse osmosis membrane units installed at Woodland Drive • New filters installed at Lions Plant • New regulations from LDHH • Hurricane Isaac exposed vulnerabilities • Proposed Conceptual Engineering Design for LaPlace water source includes six tasks • Water Committee recommended the proposed tasks

  4. List of Tasks Task 1 – New Water Intake Pump Station on MS River in LaPlace Task 2 – New Transmission Main from MS River to Reverse Osmosis Unit Site on Woodland Drive Task 3 – Pre-treatment at Reverse Osmosis Unit Site on Woodland Drive Task 4 – Modifications to the Lions Water Treatment Plant Task 5 – New Distribution Pump Station and Transmission Main form Lions Plant to LaPlace Task 6 – Operation and Maintenance Costs to Maintain Ruddock Well System vs. Cost to Decommission

  5. Conceptual Engineering Proposed Tasks • Task 1– New Water Intake Pump Station on MS River in LaPlace • Identify, investigate and determine best location • Provide conceptual engineering design and cost estimate for new pump station

  6. Conceptual Engineering Proposed Tasks (Cont.) • Task 2 – New Transmission Main from Mississippi River to Reverse Osmosis Unit on Woodland Drive • Determine route alternatives and provide conceptual engineering of alternatives • Perform comparison evaluation of most feasible route • Develop conceptual cost estimate for route alternatives

  7. Conceptual Engineering Proposed Tasks (Cont.) • Task 3 – Pre-treatment at Reverse Osmosis Unit Site on Woodland Drive • Analyze alternative treatment options • Calculate required treatment capacity and pre-treatment options available • Provide conceptual engineering and costs for pre-treatment units

  8. Conceptual Engineering Proposed Tasks (Cont.) • Task 4 – Modifications to the Lions Water Treatment Plant • Determine modifications required to meet LDHH regulations • Provide conceptual engineering and cost estimates for modifications to meet LDHH regulations

  9. Conceptual Engineering Proposed Tasks (Cont.) • Task 5 – New Distribution Pump Station and Transmission Water Main from Lions Plant to LaPlace • Provide conceptual engineering of new distribution pump station • Provide conceptual engineering of transmission main alternatives and comparison evaluation of most feasible route • Develop conceptual cost estimate for pump stationand transmission main

  10. Conceptual Engineering Proposed Tasks (Cont.) • Task 6 – Operation and Maintenance Costs to Maintain Ruddock Well System vs. Cost to Decommission • Determine operation and maintenance costs over 20 year term to keep Ruddock well system in operation • Determine cost to decommission Ruddock well system

  11. LaPlace Water Source Conceptual Engineering Results • Conceptual Engineering Design Memorandum and Recommendations Summary • Present total costs of all elements in a summarized format • Provide recommendations on moving forward with design and construction • Provide Schedule to completion • Operation and maintenance comparison of elements • Reliability comparison of elements • Potential funding methods for recommended alternative

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