Empowering water/wastewater network management with GIS

Ioannis Kavouras_GIS Manager Surveying Engineer, MSc, MBA

Thessaloniki Water & Sewerage Company S.A.

The Company

• responsible for fresh water distribution & sanitation • serving 1.500.000 citizens (500.000 customers) and expanding • 250 employees

Water Network

• 2.300km of water pipes

• 50 Tanks

• 52 Pump Stations

• 275.000m³ daily production

Sewer Network

• 1.900km of sewer/stormwater pipes

• 54 Pump Stations

• 3 Waste Treatment Plants

• combined network (sewer and storm

water)

Thessaloniki Water & Sewerage Company S.A.

The GIS Department

• ArcGIS Server 10.1 / ArcGIS Desktop 10.1

• SQL Server 2008 R2 on Windows Server 2008 R2

• 12 ArcGIS Desktop licenses

• ArcGIS Online, Flex & Silverlight for ArcGIS Server

• Web Mapping Applications

• MobileWeb maps for iOS & Android devices

• ArcGIS Mobile for Windows 7 (Tablets)

• 8 employees (5 + 3 internships)

Thessaloniki Water & Sewerage Company S.A.

Implementing GIS

Milestones

• 2000 - Building GIS Data for sewer network from scratch

• 2000 - ArcInfo 7 on UNIX

• 2002 - Building GIS Data for water network from scratch

• 2004 - Setup Hydraulic Model for the External Water Network

• 2008 - Serving GIS Data on the intranet through Web Application

• 2009 - Online DB Connection between GIS and Customers DB (Sewer)

• 2010 - Serving data to the Hydraulic Model

• 2012 - Field crews use tablets for online mapping with the GIS Server

• 2013 - Online connection between Call Center & GIS

• 2015 - …

Thessaloniki Water & Sewerage Company S.A.

Implementing GIS

Thessaloniki Water & Sewerage Company S.A.

G.I.S.

Technical Departments ArcGIS Desktop, Silverlight, Flex, Tablets (iOS & Android), ArcGIS Online Web Applications

Division of Consumers •Consumption Data •Data Capture with GPS Devices

Divisions of Water & Sewer

Flex, Tablets (iOS & Windows)

External Contractors As Built Drawings, Technical Specifications, Approval of deliverables

Technical Departments New Designs, Construction Supervision, Hydraulic Information

Field Crews Water & Sewer, Daily Feedback, Inconsistencies with GIS

Hydraulic Model SW Designs for new areas, Bidirectional data flow, Hydraulic Information

Customers DB Sewer Customers DB, Water Customers DB(Pilot)

Technical Data Warehouse

•Electromechanical Data •Borehole Data •Water Flood Data •Facilities’ Image Library •As-Built Drawings •Hydraulic Data •Network Damages Data

Upper Management

Statistical Data, Maps of Strategic Content

Process

Technology

Upper Management

• Flex •Tablets (iOS)

Data

Spatially enhanced water consumption data

Automated process for water consumption calculation

• User defines on the map specific geographic area

• Historic water consumption data from ERP is used

• A Model in Model Builder has been set up

• The Model has been published as a service in ArcGIS Server

• The service is served to the end users via ArcGIS Online Web Mapping

Application or via Flex technology

Thessaloniki Water & Sewerage Company S.A.

Spatially enhanced water consumption data

The Model

Thessaloniki Water & Sewerage Company S.A.

Spatial enhanced water consumption data

Thessaloniki Water & Sewerage Company S.A.

Optimizing Routes for meter collection data

Old Routes • Existing routes are not spatially intelligent • Have been changing over years in random ways • High cost in money and time due to lack of spatial intelligence • Were not presented on maps

Thessaloniki Water & Sewerage Company S.A.

Optimizing Routes for meter collection data

New Routes - Methodology • Capturing existing old routes with mobile devices • On site visits for inconsistencies between paper records & reality • Proposed new geographically-wise routes for approval • Compatibility edits between GIS and ERP customer data

Thessaloniki Water & Sewerage Company S.A.

Capturing basemap (cadastral) data

Data Collection • with mobile phones when data does not exist or is inconsistent with

reality • by GIS personnel and field crews

- attribute data of buildings - street names & house numbers

Thessaloniki Water & Sewerage Company S.A.

Capturing basemap (cadastral) data

Thessaloniki Water & Sewerage Company S.A.

Thessaloniki Water & Sewerage Company S.A.

Capturing network assets with GIS & GPR

• Detecting water leakages • Capturing underground infrastructure

Inspecting new sewer pipe

Thessaloniki Water & Sewerage Company S.A.

• External contractor delivers as build drawing • Camera inspection along with GIS, finalize the delivery process

Managing Customer Calls out of the office

The process

• Call center inputs customer call regarding network failure

• Incident address in selected from a GIS Geocoding database

• A “Map” link is activated next to the incident

• Field crews see the map

• on the go

• while accessing incident data

• before even reaching the place of incident

Thessaloniki Water & Sewerage Company S.A.

Managing Customer Calls out of the office - The incident

Thessaloniki Water & Sewerage Company S.A.

the incident

map link

Geocoded address

Thessaloniki Water & Sewerage Company S.A.

Managing Customer Calls out of the office - The map

Replacing damaged water valve

Thessaloniki Water & Sewerage Company S.A.

The road ahead…

we are in the process of establishing a vertical data

management system

• we have already

• captured existing company’s processes

• restructured and improved company’s processes

• at the moment changing our ERP and shifting to SAP

• next phase will be to connect GIS with SAP

Thessaloniki Water & Sewerage Company S.A.

Functional Representation

Thessaloniki Water & Sewerage Company S.A.

Customer Claims

Call Center

Technical Actions

Investment Program

New Connections

Damage Verification

Scheduled Maintenance

Customer Care

Construction Management

G.I.S.

Service Management Warehouses

Accounting

MIS

Fixed Assets Register

Systemic Representation accounting updates in real time

managerial reports

based on financial & technical

data

Empowering water/wastewater network management with GIS

Ioannis Kavouras_GIS Manager Surveying Engineer, MSc, MBA

Thessaloniki Water & Sewerage Company S.A.