1. 1 GIS for Water Maximizing the Benefits of GIS Susan Ancel - Director Water Distribution and Transmission EPCOR Water Services Inc. Geospatial World Forum – Preconference Seminar May 2013, Rotterdam

2. 2 Presentation Overview EPCOR Overview History of GIS – EPCOR Water GIS Strategic Plan Principles Infrastructure Renewal Water Consumption Analysis – Rate Design Transmission Main Renewal Prioritization

3. 3 EPCOR Background Wholly-owned subsidiaries build, own and operate electrical transmission and distribution networks, water and wastewater treatment facilities and infrastructure Selected as Albertas Best Overall Workplace for companies with more than 750 employees Headquartered in Edmonton, Alberta, Canada 2700 Employees in Total More than 1000 Employees in Water

4. 4 EPCOR Background

5. 5 EPCOR Water – Edmonton Statistics Waterlines = 3,700 kms Hydrants = 18,000 Valves = 54,000 Depth of Bury = 2.8meters Population Served = 1 million Service Connections = 240,000 Average Demand = 340 MLD Maximum Demand = 550 MLD

6. 6 GIS History – EPCOR Water 19781980199019951985200020052008 GeoEdmonton Alliance Established 2013 3 rd Generation Database Centric Integrates GIS & WMS 1 St Generation CAD Based AM/FM Renewal Candidate Selection Tool Built ADAPT Tool Built Network Field Link (Webtools) All Mains Hydraulic Model Built Field Computers Deployed 2 nd Generation CAD & Database Based, Analysis Tools Some WMS Tools

7. 7 GIS Strategic Plan Principles GIS Technology will Improve Water Services Efficiency or Effectiveness Accurate Information should be Available to the Users when they need it, where they need it and in a format that meets their needs Data Stewardship is a key enabler Desired outcomes are not just automation but also business process improvement Success requires a combination of appropriate technology and trained users with a focus on supporting the decision process vs. creation of maps

8. 8 Overall System Architecture WALRUS Oracle Spatial Data Recording Tools Hydraulic Models Synergee Work Management System - IVARA Thematic Mapping MapInfo Speciality Queries And Reports CAD Tools Microstation I n p u t Network Field Link eSpatial address, AppNOs Input GeoEdmonton Alliance Data Utilities, parcels etc I n p u t Customer Information System Service lines I n p u t GeoEdmonton Alliance Data WALRUS – Water And Land Related Utility System Users can access same information via four interfaces depending on their need – Microstation, MapInfo, IVARA or NFL

9. 9 Infrastructure Program Drivers

10. 10 Infrastructure Renewal Program History 19851990199520002005Present Distribution Cathodic Protection Program Reactive Water Main Renewal Program Proactive Renewal Program Water Main Lining Program AC/PVC Valve Program All Mains Hydraulic Modeling Neighbourhood Improvement Programs 2010 Accelerated Program Current Annual Capital Budget For Water Main Programs Approximately $40Million/year Total spent since 1985 - $500 Million

11. 11 RPV – Candidate Selection Reactive \ Cathodic Protection \ Accelerated \ Neighbourhood Programs Candidates Selected Based on RPV Reactive Renewal – RPV>5 Cathodic Protection – RPV 0.5 <> 1.0 Neighbourhood Program – RPV > 3 and other Utility work planned in same alignment Accelerated Program – Single Break in last five years and City Paving project planned RPV = Replacement Priority Value Total Number of Main Breaks over 5 years Divided by Total Length of Pipe Between Valves

12. 12 Water Main Lining \ Valve & Hydrant Replacements Water Main Lining GIS to plan construction number of hydrants out of services road access impacted number of customers on temporary water Valve & Hydrant Program to renew valves corroding on the non-metallic pipes and replace obsolete hydrants Renewal to occur prior to other planned construction or maintenance work

13. 13 Hydraulic Modeling Requires robust GIS Critical aspect of selecting candidates for renewal Also used to assess impact during construction due to components being out of service Evaluates delivery pressures and fire fighting capacities Also used for Energy usage analysis to determine inefficiencies in pumping and distribution of water

14. 14 Water Consumption Analysis – Rates Design SummerWinter

15. 15 Current Initiatives – Transmission Main Renewal Prioritization Reviewing All Transmission Activities: Rehabilitation Cathodic protection Replacement Assessing Hydraulic Needs for Pipes considering changing network configuration Criticality Assessments – Using Genetic Algorithms Risk Ranking of Each Stretch of Transmission Main – (based on materials, road types, customer impacts, hydraulic constraints)

16. 16 Thank you for your time Questions?