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GIS for Water Maximizing the Benefits of GIS

Explore how EPCOR utilizes GIS technology to enhance efficiency and decision-making in water distribution. Learn about GIS history, strategic planning principles, infrastructure renewal programs, and water consumption analysis. Discover the comprehensive system architecture and tools employed by EPCOR for data recording, infrastructure programs, and hydraulic modeling. Dive into the prioritization strategies for transmission main renewal and gain insights into the latest initiatives driving operational excellence. This presentation offers a deep dive into the innovative use of GIS technology in the water sector.

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GIS for Water Maximizing the Benefits of GIS

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  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. 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. EPCOR Background • Wholly-owned subsidiariesbuild, own and operate electrical transmission and distribution networks, water and wastewater treatment facilities and infrastructure • Selected as Alberta’s 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. EPCOR Background

  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. GIS History – EPCOR Water 1978 1980 1985 1990 1995 2000 2005 2008 2013 1St Generation CAD Based AM/FM GeoEdmonton Alliance Established 2nd Generation CAD & Database Based, Analysis Tools Some WMS Tools Renewal Candidate Selection Tool Built All Mains Hydraulic Model Built ADAPT Tool Built Field Computers Deployed 3rd Generation Database Centric Integrates GIS & WMS Network Field Link (Webtools)

  7. GIS Strategic Plan Principles • GIS Technology will Improve Water Service’s 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. Data Recording Tools I n p I n u p u Input t t I n p u t CAD Tools WALRUS Oracle Spatial Microstation Overall System Architecture GeoEdmonton Alliance Data Customer Information System GeoEdmonton Alliance Data address, AppNOs Service lines Utilities, parcels etc Work Management System - IVARA Network Field Link eSpatial Hydraulic Models Synergee Thematic Mapping MapInfo Speciality Queries And Reports 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. Infrastructure Program Drivers

  10. Infrastructure Renewal Program History 1985 1990 1995 2000 2005 2010 Present Reactive Water Main Renewal Program Neighbourhood Improvement Programs Distribution Cathodic Protection Program Proactive Renewal Program Current Annual Capital Budget For Water Main Programs Approximately $40Million/year Total spent since 1985 - $500 Million Water Main Lining Program AC/PVC Valve Program Accelerated Program All Mains Hydraulic Modeling

  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. 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. 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. Water Consumption Analysis – Rates Design Summer Winter

  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. Thank you for your time Questions?

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