Agenda August 5, Introduction – Natalie Robottom 2.Background and History – Rob Delaune 3.Present Conceptual Engineering Design Proposed Tasks - Rob Delaune 4.Discussion and Questions LaPlace Water Source Workshop

August 5, 2014

 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 Introduction

 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 List of 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 Conceptual Engineering Proposed Tasks

 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 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 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 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 station and transmission main 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 Conceptual Engineering Proposed Tasks (Cont.)

 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 LaPlace Water Source Conceptual Engineering Results