Water Supply Project Brief

Contents Table of Contents..................................................................................................................................... 1 Task......................................................................................................................................................... 2 List of Abbreviations................................................................................................................................ 3 TASK2 1. 1Project Title4 1. 2Introduction4 1. 3Project Location Map5 1. Terms of Reference6 1. 4. 1Project Details6 1. 4. 2Reporting Structure6 1. 4. 3Personnel Duties7 1. 5Schematic Layout7 2. 1DELIVERABLES8 2. 1. 1Dam8 2. 1. 2Water Treatment Works9 2. 1. 3Elevated Steel Tank10 2. 1. 4Water Transmission10 2. 1. 5Metering11 3. 1Project Management Process12 3. 1. 1Initiating12 3. 1. 2Planning12 3. 1. 3Executing13 3. 1. 4Controlling14 3. 1. 5Closing14 List of references.................................................................................................................................... 16 List of Annexure

Annexure 1 - Project Budget Annexure 2 - Work Breakdown Structure Annexure 3 - Project Network Diagram Annexure 4 - Project Gantt Chart Annexure 5 - Project Summary TASK You are a consultant of a firm that has won a tender to develop a turnkey water project in Kajiado County. Using necessary tools including Ms Project prepare a WBS, and do a schedule of project tasks, their resources and assume a tracking of the project progress. Hence do a status report in a PDF file. The completed work should not exceed 20. LIST OF ABBREVIATIONS WBS- Work Breakdown Structure

WARMA - Water Resource Management Authority NEMA - National Environmental Management Authority ToR - Terms of Reference GI - Galvanized Iron RCC - Reinforced Cement Concrete 1. 1Project Title Proposed Water Supply Project in Kajiado Town 1. 2Introduction A project is one-time, multitask job with a definite starting point, definite ending point, clearly defined scope of work, a budget and usually a temporary team. A project is therefore a series of activities which are meant to achieve particular goals or objectives using specified resources and in a specified period of time.

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A turnkey project refers to a project that is built and handed over ready for use. The proposed water project in Kajiado County being a turnkey project will entail the consultant to take up construction from the initial stages of the project and hand it over when water has been connected to individual residents and/or users. Kajiado town lies at the intersection of the Nairobi – Kajiado road along the A 104 highway, and the railway line that serves Magadi Soda Company in Magadi. The town is situated 80 KM South of Nairobi. It is the administration centre for Kajiado County.

Kajiado Town has a mean annual rainfall ranging from 450mm to 900mm. The major rivers found in Kajiado are among others Athi River, Ewaso Ngiro South River, Olekejuado River, Nool-Turesh River, Esokota River. The project involves construction of a dam along Olekejuado River, a water treatment plant, an elevated tank, a generator room, water transmission and distribution lines and water meter chambers. The presenter intends to use tools of Project Management Information Systems including MS Project 2010 software in achieving the implementation framework.

The paper will be guided by Project Management processes of Initiating, Planning, Executing, Controlling and Closing to achieve set deliverables of the proposed project. 1. 3Project Location Map Figure1 - Map of Kajiado County 1. 4Terms of Reference This contractual document outlines the terms and conditions for the contracted project team. The process of initiating a project starts when the Client contacts the Contractor either with an already drawn 'Terms of Reference' or with intent for a joint process in drawing the Terms of Reference. 1. 4. 1Project Details

EmployerMinistry of Water and Irrigation Funding agencyGovernment of Kenya (Development Vote) EngineerGeneral Manager (Design & Construction) ConsultantsKiama Consortium Limited Contract No. MOWI/001/2011-2012 Contract Area20 Square Kilometres Water Meters2000 Residents Contract Value (USD)USD 2,000,000 Capacity Required2,000,000 Litres/day ContractorPentacon Limited Award Date2 December 2012 Commencement Date1 January 2013 Completion Date4 October 2015 Project Duration2 Years 1. 4. 2Reporting Structure 1. 4. 3Personnel Duties The following will be the Key personnel for the project: Project Manager – Overall supervision of the project ?Financial Controller – Financial supervision ?Human Resource Officer – staff recruitment ?Procurement Officer – acquisition of resources (material) Monthly and Quarterly reports will be submitted to the client. The monthly report shall be submitted by the 5th of every month while quarterly report shall be submitted after every three months of the project duration. 1. 5Schematic Layout 2. 1DELIVERABLES Deliverables are the end results or outputs of undertaking a project. They may include reports, manuals, actual working systems or actual products.

In this project deliverables include a dam, a water treatment plant, an elevated water tank, water distribution mains and water meters. 2. 1. 1 Dam ?Diversion of River The dam is designed to hold 10,000, 000 liters of water at its full capacity. The dimensions shall be 100m x 100m x 2m. During the construction of the dam, River Olkejuado will be temporarily blocked up stream and water diverted until the dam construction is completed. ?Intake Chamber The intake will be constructed and an allowance velocity of 0. 45m/s will be provided that will direct water to the pumping station. ?Spill Way

The spill way will allow water to overflow in case the dam fills up excessively. ?Embankment An embankment will also be constructed to safeguard the walls of the dam from failing. Reinforced Cement Concrete retaining wall works will be done as an embankment to safeguard and strengthen the dam walls. ?Pump House A pump house shall be constructed to provide for a stand by generator to cater for 50% of the maximum pumping capacity and incase of power failure. It should also be noted that a generator can work for a maximum of 16 hours a day, therefore that should be considered in case of a total power failure in case of electrical faults. . 1. 2Water Treatment Works The assumption is, the water being harvested contains 50 – 50, 000 coli form count, a figure that requires water to undergo full treatment before consumption. ?Coagulation Tank This is the first tank, where water is chemically coagulated by adding alum and soda ash. The tank contains flocculation chambers. The water passes through baffles so that it can mix up well with the chemicals. ?Sedimentation Tank The sedimentation process will be aided by addition of alum in the coagulation tank. The baffles help the formation and in turn settle finer particles such as silt and colloids.

The sedimentation tanks designed as upward hydraulic velocity and downward settling velocity enable sludge concentration. The design flow rate is proposed at 222m3/hr and the surface loading rate velocity is proposed at 1. 5m3/m2/hr. The allowed detention time is 3 – 4 hours. ?Rapid Sand Filter The proposed rapid gravity filters are back washed with air and water. The design flow rate is recommended at 222m3/hr and a filtration rate of 5m3/m2/hr. The storage time is about 10 – 20 minutes. ?Disinfection Tank pH correction will be done by adding soda ash.

It could be due to dissolved carbon dioxide (CO2) or excess amount of alum was added into the water during the coagulation process. Disinfection of the water will be necessary to lower health risk and infection with water borne diseases. In that case, Calcium Hypochlorite will be added to the water as per the calculated quantity depending on the volume. ? Reinforced concrete storage tank After water has been successfully disinfected, it will be pumped to the storage tank and allowed for chemical reaction for about 30 minutes before it is pumped to the elevated water tank ready for distribution. . 1. 3Elevated Steel Tank The elevated water tank is dependent on the highest level in the region. This also allows for water flow by gravity therefore, there will savings of electricity and fuel cost that might have been used for pumping water. 2. 1. 4 Water Transmission ?Transmission Main Galvanized iron (GI) pipes of 250mm diameter are preferred since they withstand high water pressures. The pipe velocity is set at 2. 0 m/s and set at a depth n. e. 1000mm deep below the ground level. Reflux valves are allowed at a distance of 3-4 km spacing to ease repair and maintenance. ?Distribution Main

The minimum diameter of pipes recommended is 100mm diameter. uPVC pipes shall be used and the maximum 60m and minimum pressure of 10m. The pipe velocity is set at 06 – 1. 0 m/s, and service valves are set every 1km for ease of inspection, repair and maintenance. 2. 1. 5Metering Meters are installed in all 2000 houses or users to monitor water consumption. This will also helps in billing as per the actual amount of water consumed. The Meters will assist in curbing vandalism of water. 3. 1Project Management Process Project management is the process of initiating, planning, executing, controlling and closing a project.

The project goal is the desired outcome it should be short and simple yet clearly communicate scope, time frame and budget. To achieve the goal of supplying water to 2000 users in Kajiado county, the management process outlined above will be adhered to. 3. 1. 1 Initiating It involves recognizing that a project should begin and committing to do it. Feasibility concerning technical, financial, operational, legal, environmental and social aspects of the project shall be carried out. Using MS Project 2010 the project start and finish date were identified. Legal issues such as NEMA and WARMA licensing were identified and dealt with accordingly.

Approval of the project by the County council was also sought. The start date was 1st January 2013 while the expected completion date is 4th October 2013. The budget for the project was also drawn; it is envisaged that the project will cost Ksh. 179,445,100 (USD 2,000,000) This is shown in annexure 1 of this paper. 3. 1. 2Planning Initially, the project scope was defined and the appropriate methods for completing the project were determined. Following this step, the durations for the various tasks necessary to complete the work were listed and grouped into a work breakdown structure; this is attached in annexure 2.

The logical dependencies between tasks were defined using an activity network diagram as shown in annexture 3 that enables identification of the critical path. Float or slack time in the schedule can be calculated. Then the necessary resources were estimated and costs for each activity allocated to each resource, giving the total project cost. At this stage, the project schedule was optimized to achieve the appropriate balance between resource usage and project duration to comply with the project objectives. Once established and agreed, the project schedule became the baseline schedule.

Progress will be measured against the baseline schedule throughout the life of the project. Planning Involves devising a workable scheme of a schedule of tasks and resources. In the planning process, the project activities were identified and entered in the Gantt Chart. Timelines for the activities were drawn and subdivisions identified, milestones were also noted. Restrictions and relationships of predecessor and successor activities were also considered. Resources were then assigned to the tasks identified. The Gantt chart is shown in annexure 4 of this paper. ?Assumptions

When planning for this project, a few assumptions were made. They include the following: i. Land for the development of the dam and excavation of trenches for pipes’ distribution is already procured by the Olkejuado County Council. ii. River Olkejuado is a temporary river and the dam is being excavated during the dry season. The river does not, therefor, need diversion but, only blocking. iii. The electrical work cater for all the structures iv. Each tank will have a booster pump. v. All hired machines and equipment comes fully with operators vi. The shilling is exchanging at the dollar rate of 90 Ksh. ii. The dollar sign in the budget represents Kenya Shillings. 3. 1. 3Executing This phase will involve carrying out the scheduled plan while coordinating the people and resources to achieve the project goal. It will also involve reporting on a monthly and quarterly basis as stated in the ToR. Reporting will involve progress, resource usage, achieved milestones and challenges encountered if any. Milestones and Critical Path are shown in annexure 5. Creating project records and presentations will also be done at this stage. Adherence to the drawn out plan will be key to achieve the desired results. henever necessary, changes will be requested and improvements recommended. 3. 1. 4Controlling It ensures that the project remains within the objectives, tracking performance and taking necessary corrective measures. During this phase, achieved progress is compared to the scheduled progress and any slippage is noted. Tracking for activities especially at the preliminary stage of the project has been assumed. The tracking Gantt Chart has been observed to give progress in percentage. Corrective measure suggested in case of slippage is crashing of the project activities.

Crashing will involve identifying activities with float and slack times and interrogating the resource allocation and dependencies therein. (24 hour days in shifts) Though it may imply increase in project cost, it may be the only way to ensure timely finishing of the project. Ensuring timely procurement of materials and hiring of equipment whenever required is also key in controlling the project. Effects of weather changes will also need to be taken into consideration. 3. 1. 5Closing It involves formalizing the acceptance of the project and bringing it to an orderly end.

Users are trained and handover of the project is conducted together with necessary documentation which aid in support and maintenance in future. The project audit and commissioning has been scheduled for the last month of the project duration as indicated on the Gantt chart shown in annexure 4. This being a turnkey project, cut-off handover is proposed. List of References www. imestopedia. com/terms/r/risk. asp en. wikipedia. org/wiki/Risk breakdown - freecover. blogpost. com www. mastery-project-management. com/project closure,html Uher, T. (2003) Programming and Scheduling Techniques, UNSW Press, Sydney

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