Surabaya NRW Management Final Report

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Transcript of Surabaya NRW Management Final Report

THE WORLD BANK

PDAM Surabaya

Non Revenue Water (NRW) Management Strategy for Surabaya Water Company

Final Report 2011 May 2011

Prepared by :

Ranhill Water Services Sdn.

Prepared by :

Ranhill Water Services Sdn. Bhd.Head Office: Level 13, Wisma PERKESO 50400 Kuala Lumpur Malaysia Tel: +603 26855000 Fax: +603 26855102 Operation office: Level 4, Matang Building 83, Jalan Langkasuka 80350 Johor Bahru Johor, Malaysia Tel: +607 276 2020 Fax: +607 276 3030 Ranhill Water Services has prepared this report in accordance with the instructions of their client, for their sole and specific use. Any other persons who use any information contained herein do so at their own risk. Ranhill Water Services 31st May 2011

ContentsIntroduction .....................................................................................................................................................1 Background of the Task ..............................................................................................................................1 Task Objectives ..............................................................................................................................................1 1 Introduction Proposed Implementation Strategy ..................................................................2 1.1 NRW Awareness Programs ...................................................................................................2 1.2 Production Metering ...............................................................................................................3 1.3 Customer Metering ..................................................................................................................5 1.4 Reservoir Overflow Control................................................................................................ 10 1.5 Inter-Zone Metering ............................................................................................................. 11 1.6 DMA Establishment .............................................................................................................. 12 1.7 Leakage Reduction Activities ............................................................................................ 12 1.8 Pressure Management ......................................................................................................... 12 1.9 Establishment of Control Room ....................................................................................... 15 1.10 Call Centre Improvement.................................................................................................... 17 1.11 Asset Maintenance Strategic Plan ................................................................................... 19 1.12 Recording of Operational Usage ..................................................................................... 24 1.13 Pipe Replacement Programme......................................................................................... 25 1.14 Staffing ....................................................................................................................................... 29 1.15 Customer Charter .................................................................................................................. 34 2 Financial Option................................................................................................................................ 36 2.1 Estimated Cost ........................................................................................................................ 36 2.2 Options for Implementing the Proposed Strategy for NRW Management ... 38 3 Cost Benefit Analysis ...................................................................................................................... 45 4 Conclusion .......................................................................................................................................... 53

Ranhill Water Services Sdn. Bhd.

IntroductionRanhill Water Services Sdn Bhd (RWS) are pleased to submit the FINAL REPORT for Task 4 Preparation & Presentation of NRW management options, to the World Bank for the contract Non Revenue Water (NRW) Management Strategy for Surabaya Water Company. On the 6th September 2010, RWS was awarded a contract to develop a Non Revenue Water (NRW) Management Strategy for Surabaya Water Company in East Java, Indonesia by the World Bank. This contract is for a period of 34 weeks commencing from 6th September 2010 until 30th April 2011, with the expected outcome is the delivery of a strategy for the management contract of NRW across the city, which can be used by PDAM Surabaya as a template for future investments and development. This document details RWSs Activities to the World Bank / PDAM Surabaya to complete the said works.

Background of the TaskBased on the results of the assessment of components for water loss in Surabaya city, review of PDAM Surabayas current water loss management practices and system features and establishment of DMAs for pilot study purposes in Surabaya City, a Non Revenue Water (NRW) Management Strategy will be prepared for the entire city. This strategy will include the implementation strategy to deliver the proposed network management and holistic NRW management program, NRW management options and recommendations, to further improve Surabaya citys NRW situation. For this task report, RWS aims to create a best practice document report, detailing the most suitable and efficient means of undertaking an NRW management strategy for the city of Surabaya. This task report will also ensure that all components of NRW are covered and that the proposed strategy is feasible in terms of physical application and financial requirements.

Task ObjectivesThe objective of Task 4 Preparation & Presentation of NRW management options is to: Propose an Implementation strategy to deliver the proposed network management and holistic NRW management programme. Prepare NRW management options and recommendations feasible in terms of physical application and financial requirements to further improve Surabaya citys NRW situationNon Revenue Water (NRW) Management Strategy for Surabaya Water Company 1

Ranhill Water Services Sdn. Bhd.

To create a best practice document report detailing the most suitable and efficient means of undertaking an NRW management strategy for the city of Surabaya.

Task 4 - Preparation & Presentation of NRW Management Options 1 Introduction Proposed Implementation StrategyThe following strategies, comprising 15 main activities, are recommended for PDAM Surabaya to undertake network management and holistic NRW management program: NRW Awareness Programs Production Meter Accuracy Customer Metering Reservoir Overflow Control Inter-Zone Metering DMA Establishment Leakage Reduction Activities Pressure Management Establishment of Control Room Call Center Improvement Asset Maintenance Recording of Operational Usage Pipe Replacement Programme Staffing Customer Charter

1.1 NRW Awareness ProgramsMany water companies that embark on NRW reduction management tend to create a dedicated NRW team with varying responsibilities. Some concentrate mainly on leakage detection, whilst others may undertake additional activities aimed at managing other NRW components. Unfortunately the setting up of these dedicated teams can sometimes have an unintended negative effect. This is mainly due to the remaining water company staff feeling that NRW is the sole problem of the NRW team and therefore mitigating any responsibility they have to helping with managing the NRW levels. In reality NRW is a company wide responsibility, with each member of the organization having a role to play in reducing NRW. Whether its the meter reader, who should read all his meters within a set time period while on the look out for any anomalies with the meters, or the procurement executive, who is responsible for ensuring that all contracts, materials and equipments arrive expediently and of the correct quality, or all other staff within the organization who all have significant roles to play.Non Revenue Water (NRW) Management Strategy for Surabaya Water Company 2

Ranhill Water Services Sdn. Bhd.

To overcome the above pitfall, an NRW awareness program is proposed to be conducted to instill the basic knowledge on NRW, importance of NRW to the water company and appreciation of the benefits of NRW reduction and savings to long-time employees of the water company, as well as new joiners. The awareness sessions will impart to every personnel his or her roles and responsibilities toward achieving the reduction in NRW level. The proposed staff awareness programs are aimed at all PDAM Surabaya staff and are suggested to follow the following schedules. Each session will be conducted in a small group to ensure the contents of the program will be effectively delivered. It is also suggested that the awareness sessions be conducted according to levels of understanding to ensure that the information is well disseminated to all employees. The awareness sessions will be conducted separately according to the following sectors within the PDAM organization: Top Management and Senior Personnel Engineers and Executives Technicians and Clerical Staff Laborers, Field Assistants and Meter Readers

These awareness sessions will take at least a full day for Managers and Executives and a half day for the other employees. The sessions are recommended to be conducted outside of PDAM Surabaya premises to ensure undivided attention is given by the staff involved.

1.2 Production MeteringThe accurate measurement of the production volume is an essential part of the calculation of NRW. Accurate meters have been installed on all of the water treatment plant