Introduction of Asset Management, Belgrade’s expirience

Vladimir Taušanović Ms Sc Civ.Eng

Belgrade Waterworks & Sewerage

Danube river basin

Belgrade Waterworks FACTS

CUSTOMERS •  1.5 MIL consumers PRODUCTION •  100 wells and pumping units •  5 water treatment plants DISTRIBUTION •  3.500 km distribution network length •  200.000 customer units •  22.000 valves… etc.

WATER BALANCE •  200 MIL m3 annual water intake •  32% Unaccounted for Water (UfW) ENERGY CONSUMPTION •  168 MIL kWh/YEAR (0.88 kWh/m3) ENVIRONMENT •  0.15 MIL t CO2 carbon footprint

Belgrade Waterworks FACTS (Contnd)

BWS STATUS QUO at the beginning of new millennium

  Aging & Deterioration of infrastructure assets   Unadjusted strategic & tactical planning   Required huge budget for Capital Maintenance   Low price for service (potable w & ww collection)   Lack of coordination between numerous departments

Urgent needs for: •  SHORT TERM PLAN – remedial measures •  LONG TERM PLAN – WLC approach

WATER UTILITIES – capital intensive companies Managing the infrastructure is the core business

•  What do you have and where is it? •  What is it worth? •  What is its condition and expected remaining service life? •  What is the level of service expectation, what has to be done? •  When do you need to do it? •  How much will it cost and what is the acceptable level of risk? •  How do you ensure long-term affordability? •  HOW TO DEAL WITH CAPITAL OF SUCH SCALE ? Only systematic approach could yield results!

Asset Management

The way how to keep your system in good health

•  Management, engineering, financial, economic, and other practices applied to physical assets

•  Providing the required level of service at acceptable level of risk and in the most cost-effective manner

AM – the art and science of making the right decisions

Asset Management

Step by step approach

•  State of the assets, inventory of assets •  Condition assessment, life cycle •  Assets valuation •  Level of service target •  Risk assessment and analysis •  Determine best technical / financial options •  ASSET MANAGEMENT PLAN building (long term funding plan)

Belgrade Waterworks (BWS) Way

•  Design of AM concept •  Implementing ICT infrastructure •  Creation of GIS & AM Departments •  Education and training of STAKEHOLDERS •  Implementing AM procedures

Introduction of ICT infrastructure •  Progress, SQL server

database •  Sybase IQ data warehouse •  30 servers •  1000 + PC units in network •  Optic cable local network

(through sewerage mains) •  300 locations covered

- Technical IS (SCADA and remote control system,..)

- Management IS (E-business, data management,

…. )

ACHIEVED •  Top management commitment •  IT Infrastructure implemented •  Improved organisation (GIS & AM Dept.) •  Assets inventory built •  GIS database in use in the whole company

- after initial support by consultants IN-HOUSE know-how

Data integration (network, O&M, commercial, etc.)

•  Integration of data:

GIS based (centered) •  70 workstations input

data •  To all users available

FIELD SURVEY

•  Pipe Atributes

ASSETS INVENTORY

•  Elements - 120.000 items (pipes, valves, hydrants, ...) •  Atributes - more than 1 MIL (material, construction year, DN, ..

PIPES REGISTER

•  Pipe Atributes

Distribution system potable water

GIS network Water distribution, age based

PIPE STATISTICS

•  E Total network length 3.500 km

VALVES REGISTER

•  Valves by DN

BULK METERS REGISTER & LOGS

•  Bulk Meters introduced, Accurate water balance

BUILDING REGISTER

Plants, Wells, Pump. Stations, Office Buildings, etc.

VALUE OF BWS ASSETS

•  Book keeping value (before) 300 Mil EUR

•  Fair value (assessed) 1 Bill EUR •  Replacement value 2.5 Bill EUR

Depreciation rate 1-2% /year

Asset Management: long term plan draft

“Looking foreward” concept

Pipe Replacement 2002-2012

BENEFITS

•  Improved knowledge of own system •  Data integration (network, O&M, commercial, etc.) •  Better internal coordination within the company •  Established sound technical tool for decision making

support •  Improved effectives / efficiency •  Level of service •  Roadmap towards sustainability

•  Specific starting results:

SPECIFIC STARTING RESULTS

•  Asset registers available to all stakeholers (under permission)

•  Recognized additional 1000 km of distribution network (mostly illegal)!!!

•  Recognized 89 PMA (pressure managed area) as a supplement of traditional 5 altitudinal zones

•  Decreased pressure level (1 bar) in part of system with high buildings (7% of network)

•  Recognized 33 DMA (distict metered areas) enabling water balance brakedown

•  Decreased energy consumption (up to 10%) with pumps frequency control supplement

•  Established GIS based failure database (last 3 years)

23 PI groups - activity based approach Data quality (17 PI) Water Balance (6 PI) Commercial losses breakdown (4 PI) Network Operation & Maintenance (5 PI) Flow metering (3 PI) DMAs (5 PI) Consumers (5 PI) Water quality (5 PI) PMAs (2 PI) O&M sections level (3 PU)

MANAGEMENT REPORTING Performance Indicators based

•  DMA Balance Brakedown for Zone ’SLANCI’

INFLOW

LEGEND:

CONSUMPTION

WATER LOSS

Assumption: illegal double service lines due to extensive vegetable production

DEMAND MANAGEMENT

DEMAND MANAGEMENT

•  Billing •  Consumer Consumption

Analysis based on w/m readings

•  Regular DMA audits

•  DMAs scheme

DEMAND MANAGEMENT

Water balance control Irregular events monitoring

•  Pipe Failures in 2012 (City)

Main

Mains failure

1 Number of failures

LEGEND:

OPERATION & MAINTENANCE

Pipe failure track record annual reports rehabilitation plans

OPERATION & MAINTENANCE

•  Valve Closing Scheme, Automatic Generation

Pipe Burst

•  Faster burst isolation •  Decreased customer

minutes lost (CML) •  Link with valve

condition assessment (valve failures)

•  Engaged resources overview in maintenance activities

OPERATION & MAINTENANCE

•  Maintenance activities cost overview

OPERATION & MAINTENANCE

•  Maintenance activities, cost structure

OPERATION & MAINTENANCE

WATER QUALITY

•  Water Quality Sampling Points

MANAGEMENT REPORTING Performance Indicators based

23 PI groups - activity based approach •  Data quality (17 PI) •  Water Balance (6 PI) •  Commercial losses breakdown (4 PI) •  Network Operation & Maintenance (5 PI) •  Flow metering (3 PI) •  DMAs (5 PI) •  Consumers (5 PI) •  Water quality (5 PI) •  PMAs (2 PI) •  O&M sections level (3 PU)

UTILITY ANNUAL REPORTS

  ASSETS INVENTORY Mngmnt - NAM Report   DEMAND Management - CDA Report

  OM Management - OM Report

  PRESSURE Management - PMA Report

  WATER LOSS Management - DMA Report   QUALITY Management - WQ Report

  REHABILITATION Mngmnt - in progres

ComercialDataAnalysis

AssetsStockAnalysis

Resources&Costs and FailureRatesAnalysis

PressureZonesAnalysis

UfW&NRW Analysys

WaterQuality

50/20/5 YearPlans

PERFORMANCE INDICATORS (PI)

PI group 'Commercial losses‘ (example) Operating (activity based) indicators: •  number of water meters older than 10 years, •  number of water meters with PAADC greater than 5 m3/day, •  number of oversized water meters larger than DN 50, •  number of water meters without consumption that are not

categorized as hydrants or seasonal consumers. Required actions: •  Changing watermeters, •  Installing C class watermeters, •  Installing smaller watermeters, •  Checking consumer (watermeter stucked or broken?)

NEXT BWS STEPS

•  Enhancing business processes on missing data collection and raising data quality (asset hierarchy, rehabilitation and replacement values, condition assessment rating, etc.)

•  Business risk exposure and risk assessment for the both potable water and sewerage systems to be continued (part of AM plan)

•  Implementation of 'look forward' concept instead of look backwards, prediction models, priorities, technical solutions, long term planning and future scenarios

•  Financial sustainability, cash flow models for future scenarios, tariff settings, external funding and budgeting

•  Long term Asset Management plan •  Continuous work on capacity building in BWS on further

integration of AM practices within the company

WB-IAWD Program Cooperation on implementation of AM

IN SMALL AND MEDIUM SIZE WATER UTILITIES

•  IT solutions: Implementation of IT systems,

Network Asset Management, Maintenance Management.

•  Infrastructure AM model: establishment of an accurate network database, implementation business procedures

•  Data Quality: Field survey, Evaluation and validation processes, Data quality control and improvement

•  Planning and budgeting procedures

•  Institutional Strengthening: Problem Analysis, Priorities for Change, Business Processes, Education and training

GIS & AM dep.

Thanks for your attention