1. Distributed Temperature Sensing - Anglian Water Trial Fola Ogunyoye 18 th March 2013

2. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 2 22 June 2012 Royal HaskoningDHV  Global engineering and environmental consultancy  Largest engineering consultancy in Peterborough  Leader in water’s edge sustainability and innovation  Top 10 of independently owned, non-listed companies  8,000 staff worldwide

3. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 3 22 June 2012 Introduction to DTS DTS = Distributed Temperature Sensing Measuring temperature along a fibre-optic cable in a sewer pipe Method to identify inflows in sewer pipes

4. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 4 22 June 2012 Why DTS  Very rich and visual data, allowing targeted response  Unprecedented type of information from sewer system  Significant detail in both time and space – not a snapshot  Low level of interference and cost effective  Intelligent identification of problem within sewer system  Successful where many other approaches have failed

5. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 5 22 June 2012 Methods of deployment Standard monitoring set-up Riooloctopus

6. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 6 22 June 2012 Introduction to DTS

7. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 7 22 June 2012 Riooloctopus

8. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 8 22 June 2012 wastewater entering a storm water system flow direction Applications: storm sewers

9. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 9 22 June 2012 Application: foul sewers

10. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 10 22 June 2012 Large inflow (creek) Applications: foul sewers

11. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 11 22 June 2012 DTS projects  Netherlands:  15+ projects for municipalities (Eindhoven, Den Haag, Breda, Almere, etc.)  on-going research projects  Germany:  2 projects for Water Utilities (Wuppertal, Emmerich)  1 research project (initiative)  Denmark:  1 project / research for municipality (Aarhus)  UK:  1 pilot project for Water Utility (Anglian Water)

12. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 12 22 June 2012 Typical reasons for using DTS  Illicit connection or inflows to storm/foul sewers systems  capacity improvement -> sewer: reduce CSOs -> WwTP: prevent expansion  flooding of sewers or pumping stations  reduction in energy consumption, pump wear, dosing chemicals (sewer, WwTP)  reduction in pollutant load via WwTP effluent

13. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 13 22 June 2012 Particular UK issues  Transfer of private sewers regulation 2011  Achievement of Environmental discharge consents  Operational efficiency  Looking towards AMP 6

14. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 14 22 June 2012 Autumn 2011 RHDHV Attend Anglian Water innovation Workshop March 2012 Anglian Water and RHDHV Develop Project scope November 2012 Trial Site and Funding agreed January 2013 DTS deployed in Little Wakering, Southend-on-Sea March 2013 Trial completed and results presented to Anglian Water

15. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 15 22 June 2012 Trial Site – Little Wakering (Southend)  Suffers from frequent flooding  Local pumping station exceeding capacity  Previous attempt to identify inflows inconclusive

16. Title: Royal HaskoningDHV PowerPoint template Subtitle: V04 22/06/2012 Page 16 22 June 2012 Trial Site – Little Wakering  Deployment of DTS in partnership with Kwakernaak (Dutch) and Barhale contractors  2 monitoring cables deployed (650m & 950m)  Sewer monitored for 4 weeks  Initial results have identified a number of storm water inflows

17. Thank you for listening