Peter Flower Pr Eng Director: Water & Sanitation City of Cape Town South Africa

Transcription

1 Peter Flower Pr Eng Director: Water & Sanitation City of Cape Town South Africa

2 Continual Improvement in Water Management The Cape Town Perspective

3 Philosophy Quality Management Information Management Asset Management Resource Planning Financial Planning Operations Management

4 Vision- and Value System-driven: Customer Service Delivery Affordable Trust Sustainable Excellence Integrity Equitable Respect Professional Transparent Environment Efficiency Economic Growth Quality

5 W&S strategy is informed by the City s strategic focus areas (SFAs) or the 5 pillars, entrenched in the IDP:

6 Vision: Mission: To be a Beacon in Africa for the Provision of Water & Sanitation Services; To achieve the vision through service excellence in: Employee and Leadership Development Infrastructure Stability Water Resource Adequacy Product Quality Community Sustainability Consumer Satisfaction Operational Optimisation Stakeholder Management and Support Financial Viability Operational Resilience Values: W & S GUIDING PHILOSOPHY Integrity, Respect, Customer focus, Trust, Transparency, Professionalism.

7 The challenge: Function effectively within highly legislated & constrained environment: Laws, policies, regulations Compliance driven Outcomes Performance (Scorecards) Reporting

8 INTEGRATED QUALITY MANAGEMENT SYSTEM (IQMS) Customer focus ISO 9001: 2008 Quality Management System Other specific codes of practice Continuous Improvement

9 Catchment Management Dams Water Treatment Bulk Storage & Conveyance Coastal Aquatic systems WWTW Reticulation

10 Finance & Commer Revenue Management Metering Debt Manage Budget & Accounting Asset Management Support Services HR & IR Administration Information System Records Manage Facilities Manage Bulk Water Catchment Storage (Dams) Treatment Bulk Storage & Conveyance Opex: R958 mil Capex: R106 mil Infr Asset: R14.4bil Water Reticulation Distribution Reservoirs Pipelines Pump Stations Opex: R2.64 bil Capex: R422 mil Infr Asset: R19.6 bil Customer Sanitation Reticulation Sewage Collection Bulk Conveyance Pump Stations Opex: R1.89 bil Capex: R368 mil Infr Asset: R13.4bil Wastewater Treatment Sewage Treatment Sludge Handling Effluent Outfalls Opex: R832 mil Capex: R263 mil Infr Asset: R4.6 bil Water Demand Management WDM & WC WSDP Consumer Aware Info Manage Business Improve Engineering & Asset Mangmnt Electrical Maint Mechanical Maint Instrumentation Elec/Mech Design Risk & Safety Scientific Services Sampling/Monitor Microbio/Chemical Analytical Labs Reporting/Advisory Air Quality

11 IQMS MODEL BULK WATER RETICULATION WASTEWATER EAM Quality Management ISO 9001 Plan IDP 5. Management Responsibility & Commitment Environmental Management ISO Act Waste Water Staff/ Customer/ Client/End User/ Stakeholder Requirements: WATER SAFETY SYSTEM/HACCP ISO Do ISO Asset Management 6. Resource Management/ 4. Integrated Quality Management System 7. Product Realisation/ Operational Control WSDP 8. Performance Measurement, Analysis & Improvement/ Review Check OHSAS Health & Safety Management ISO Risk Management Water Staff/ Customer/ Client/End User/ Stakeholder Satisfaction: WDMS SCIENTIFIC SERVICES SUPPORT SERVICES FINANCE & COMMERCIAL

12 INCENTIVES, AWARDS, RECOGNITION

13 ISO 9001 CERTIFICATION AWARDS

14 To measure is to know Knowledge is power Increasing need to report to various organizations etc Maintain information: Accuracy Relevance Integrity - Audit trail Trend analysis Responsibility: Central coordination, QC, report, maintain Sign-off by Director (or delegated alt)

15 Embracing appropriate new technology: GIS (key to many aspects) Shared network libraries - SharePoint e-drawing Office (CAD, Georef. as-builts) Websites and dashboards Lab system - LIMS ISO QMS - SHREQ system Document Man System CCTV Remote monitoring Hydraulic models

16 GIS geo-database

17 CityMap Intranet GIS Viewer

18 File sharing

19 NRW Analysis of key stats long-term trends 30% 25% 20% 15% Jul-08 Jul-09 Jul-10 Jul-11 Jul-12 Jul-13 Jul-14 Jul-15 Jul-16 Jul-17 Jul-18 Current Targets NRW Overall Proposed Targets NRW Retic

20 IWA Water 31 March 2015: External Customers (Q) (D) (H) metered Revenue Internal Customers Billed Water (B) Authorised (I) Unmetered % (A) (E) (J) Metered Informal Settlements System Input 86.3% Unbilled Formal Metered Unbilled (K) Unmetered Formal Unmetered (R) NRW 100% (C) (F) Apparent Losses (L) Unauthorised Losses (UAW) (M) Meter Inaccuracies % (G) (N) Mains % Real Losses (O) Storage (P) Connections

21 What is Asset Management? Not just operation & maintenance of assets Core of business Coordinated activities to deliver desired service to stakeholders Getting the most out of assets Lowest life-cycle cost Managing risk at acceptable level

22 How? * Management Awareness Training Overall Policy Setting Just Start approach Top down and bottom up Use Asset Register eg. GIS Use job costing eg. SAP Use simple tools eg. Roger Byrne model * International Infrastructure Management MANUAL

23 INPUTS: Asset Type, Group, Age, Estimated Replacement Value Expected & Remaining useful life (EUL, RUL) Failure Consequences, Redundancy Condition Assessment (Delphi Groups) OUTPUTS: Current & Depreciated Replacement Cost (CRC, DRC) Business Risk: Consequence & Probability of Failure Financial : Annual Planned Maintenance Amount Maintenance & Replacement Strategy Operating and Capital Budget Profile Asset understanding

24 What are the benefits? * Improved ability to Justify Budgets Priority focus Risk understanding Better understand alternative investment decisions The Consequences: Better Capex / Opex balance Reduce costs without compromising service delivery Structured organisation of business More efficient and effective * From Water utilities survey in USA & Canada

25 BULK WATER BRANCH: Roger Byrne model(example)

26 Bulk Water: Assets Groups and Current Replacement Values Pump Stations 3% Services Reservoirs 12% Water Treatment Plants 14% Other 1% Bulk Pipelines 58% Dams 12% Total Current 2014 Replacement Cost (CRC) = R million

27 million R,9.0 R,8.0 Source: IMESA Asset Management Course R,7.0 R,6.0 R,5.0 R,4.0 R,3.0 R,2.0 R,1.0 DRC CRC R,0.0 Dams Bulk Pipelines Pump Stations Services Reservoirs Water Treatment Plants Other 46.2% 45.7% 32.6% 48.6% 28.8% Overall Ratio = 43.2%

28 Millions Millions BULK WATER OUTPUTS Current Replacement Cost: R M Depreciated Replacement Cost: R M Annual Planned Maintenance Required: R 46,8 M DRC/CRC: 43.2% R,5 R,5 R,4 R,4 R,3 R,3 R,2 R,2 R,1 R,1 OPEX Repair profile 2014 R, R,350 R,300 R,250 R,200 R,150 R,100 R,50 R,0 CAPEX Replace/Refurb profile

29 BRE Rating BULK WATER OUTPUTS 60 Bulk Pipelines: Probability of Failure (POF) vs Business Risk Exposure (BRE) 50 A B E F D C 0 0% 10% 20% 30% 40% 50% 60% 70% 80% POF

30 RETICULATION BRANCH Bursts in 2010: 30/ 100 km/ annum 2017 Target: 15/ 100km/ annum CRITERIA FOR REPLACEMENT: Prioritised against cost of burst versus interest plus redemption Performance not Age taken as governing criteria for mains replacement Road resurfacing where existing main not expected to last 30 years Development requiring relocation anyway Choked Unlined Cast Iron Consequential damage by mains bursting

31 Sep-10 Nov-10 Jan-11 Mar-11 May-11 Jul-11 Sep-11 Nov-11 Jan-12 Mar-12 May-12 Jul-12 Sep-12 Nov-12 Jan-13 Mar-13 May-13 Jul-13 Sep-13 Nov-13 Jan-14 Mar-14 May-14 Jul-14 Sep-14 RETICULATION IMPACT OF RENEWAL PROGRAM 700 BURSTS PER MONTH - SEPTEMBER SEPTEMBER

32 CAPE TOWN WATER DEMAND HISTORICAL GROWTH AND PROJECTION

33 CAPE TOWN WATER DEMAND HISTORICAL GROWTH AND PROJECTIONS

34 TECHNICAL INTERVENTIONS Pressure Management Treated Effluent Supply System Installation Water Pipe Replacement Installation of a Water Management Devices Meter Replacement Leak Detection Installation of Zone Meters Logger Installation Building Retrofit Springs Investigations Various Researches and Investigations EDUCATION AND AWARENESS CAMPAIGNS Door to Door Community Engagement Campaigns Schools Interventions Top Water Users Engagement Hospital Intervention etc WDM and WC Interventions

35 Historic water demand growth and future projections: Timing of next implementation schemes: *Note: this is a possible implementation sequence of schemes. Actual sequence to still be decided.

36 PROPOSED WATER RESOURCE SCHEMES The Reconciliation Strategy identified schemes that could be implemented should additional water be required by 2021: Water Reclamation (CoCT) Voëlvlei Augmentation (DWS) TMGA Pilot (CoCT) Sea Water Desalination (CoCT) Parallel planning is currently being conducted on all of these schemes to ensure that any one of them could be implemented by 2021.

37 Financial modelling external reviews Business model Independent analysis & evaluation 2006, again in 2015 Project Prioritisation model per project Project Portfolio Management (PPM) development on SAP since 2013

38 PROJECT PRIORITISATION MODEL RATIONALE: Objective rating of project value Meeting goals? Prioritise against limited financial resources Both Capital and Operating Projects Encourages thorough pre-planning Encourages pre-budget project documentation Weighted multiple criteria Score out of 10

39 PROJECT PRIORITISATION MODEL WEIGHTED CRITERIA: Strategic Alignment WSDP-Dept IDP-City Commitment Contractual Implementation Risk Category Risk Register Action Risk EPWP-short Sustainable Job Creation

40 PPM - Project Portfolio Management City-wide ERP initiative Allows for multi-year programmes Encourages forward planning Project Management not Accounting focus Improved Capex performance

41 PPM

42 INNOVATIONS IN TECHNOLOGY: SMOKE DETECTION Detecting illegal stormwater ingress to sewers & cross-connections Transgression of WW By-law Ingress reduces available capacity Unnecessary treatment at WWTW Savings estimate >R35M Testing very successful smoking!! Transgression found Compliance Order Grace period to rectify Fine

43 INNOVATIONS IN TECHNOLOGY: CCTV INSPECTIONS Robotic crawler remotely operated Van with control, CCTV recording and analysis computer Condition assessment of sewers Can prevents blockages and collapses payback within 8 inspections

44 INNOVATIONS IN TECHNOLOGY: VALVE EXERCISE MACHINES valves on water network Infrequent use leads to seizing up, cover buried Valves critical to isolate leaks, bursts, work area Minimises losses, asset damage Reduces repair costs and reputational damage Short Payback period Exercising Machine enables: Pro-active maintenance programme Controlled operating torque without damage Establishing Valve Type, Size, Turn Direction, State (Open/Closed), Position (Accurate GPS), General Condition

45 INNOVATIONS IN TECHNOLOGY: VALVE EXERCISE MACHINES

46 INNOVATIONS IN TECHNOLOGY: ATLAB Ten Assistive Technology Labs at Water Treatment Plants (Since 2009) Parameters: Free active chlorine, ph value, Temperature, Alkalinity & Total water hardness Automatic on-site analysis Immediately available results via City Network Allows quick response Save on manual sampling costs Introduced at Wastewater Treatment Plant (Athlone 2014) Parameters: COD, Ammonia, Nitrates/nitrites & Phosphates

47 MULTIPLE LEVELS OF RESPONSE Benefits: Rapid response to complaints Shut down burst mains quickly (less wastage) Reduce risk of private damage Reduce risk of public liability e.g vehicles into hole Staff utilisation optimised, eliminate overtime

48 LEVELS OF RESPONSE 1 st Level: First Level Response Official (FLRO) will determine repair responsibility (Municipal or Private) repair level, resources required shut-off area shut-off sequence, recharge sequence If minor repair required, FLRO will do it FLRO will re-charge main on completion Also monitor Pressure Zones, daily Pressure Monitoring Charts Require knowledge of infrastructure configuration

49 LEVELS OF RESPONSE 2 nd level Response Team: Semi-skilled Supervisor/ Driver + 2 staff + 1ton LDV + tools Effects minor repairs Meter replacements Repairs pipes, valves, hydrants Rebuild hydrant boxes Replace covers etc.

50 LEVELS OF RESPONSE 3 rd Level Response Team: Plumber/ Senior Foreman + 4 staff + 3ton Vehicle Install New Connections 20mm and up Repairs burst water mains up to 250mm 4 th Level Response Team: Senior Foreman, Senior Handymen,10 Workers, Machine Operator, 5 ton crane truck with Driver Does water main Replacement or new Installations Burst main repairs above 250mm

51 Thank you for your attention. For queries contact: