Managing Leakage and Preparing for the 2012 Olympics

Water UK Leakage Conference 2012 Managing Leakage and Preparing for the 2012 Olympics Andrew Oakes Thames Water - Leakage Planning Manager Steven Harvey Thames Water - Asset Modelling and Design Specialist

Managing Leakage and Preparing for the 2012 Olympics Planning for millions of expected visitors, traffic congestion and extensive street works restrictions Resilience work completed on the network in the lead up to the Games Monitoring technologies installed prior to and used during the Games Organisational management implemented to manage events during the games During the Games Thames Water s ambition was to do the basics well. Stay out of sight and out of mind. 2

London 2012 - Background Thames Water has been working on the Olympics for over 5 years: Started with diverting assets to make way for the Olympic park in Stratford Oversaw construction of all water and waste water infrastructure, making sure it met the demand for both games and legacy Ensured installations carried out to the required standards and water regulations Worked with the ODA to build a new water recycling plant to provide non-potable water for toilet flushing and irrigation Worked with DEFRA on contingency planning in response to malicious attack 3

London 2012 - Planning What might we expect? Vast majority of the Olympic estate is in the TW region, including 27 venues, athletes villages, training camps, media hub, road events and Olympic routes During the Games 10,500 Olympic and 4,200 Paralympic athletes 20,000 press, broadcasters and photographers Up to 800,000 people per day travelling to venues Total demand for water unknown so planned for the worst The eyes of the world on London the consequences for getting it wrong were massive 4

London 2012 - Planning Who we worked with LOCOG London Organising Committee to ensure we have adequate incident response plans in place should something go wrong Ensure continuation of the games Safe and efficient movement of people to and from venues TfL Transport for London Responsible for all other Olympic routes No planned work, only reactive during the games Local authorities Could add side streets into embargo areas as required 5

London 2012 - Planning Street-works restrictions and games lanes 7000 street embargoes, 20% of Thames Water s patch Planned work restricted from 1 st March 2012 all core routes, around venues and one alternative route from 1 st July all other streets All roads impacted by Olympics marked up on our GIS Impact on all aspects of leakage control activity 6

London 2012 - Planning - Overall Area These Central include: London area 39 presents Boroughs a unique Multiple and Major complex set Roads of challenges. 271 Tube Stations and 2,900 km of rail path 2,795 km of Trunk Main 13,000+ km of Distribution Main 7

London 2012 Planning The Olympic Route Network Within Transport Restrictive the for Central London London and Embargoes LOCOG area, were 18 Event considered placed Venues roads specific and 17 routes within Games the to be North Time critical and Training/Paralympic for South the Circular. success of Event Further London Venues restrictions 2012 were designated. Olympic were placed Games. by local authorities on routes considered to be sensitive. 8

No. Gangs London 2012 - Planning CaLM modelling of 2012/13 delivery plan Uncertainties modelled: SAP implementation, Olympics, and later the drought Expected increases in demand and associated increases in pressure and therefore leakage Reducing numbers of detected leaks repaired and increasing repair times of visible leaks during the period leading up to and during the games 180 160 140 Repair Resource by Workstream Scenarios produced to balance off leakage target delivery, expenditure and variation in contractor resourcing levels 120 100 80 60 40 20 Profile of activity front and back end loaded with extra leak detection sweeps undertaken in DMAs around venues prior to the games 0 April May June July August September October November December January February March No Leakage Gangs Olympic Gangs NM Order-book agreed with and issued to contractors 9

London 2012 - Resilience Managing Risk to the Games To effectively manage risk to the games, multiple factors must be examined. Interruption to games-critical services Risk to public/events due to flooding Review all asset source to games venue mains (Trunk mains which feed venues) Review mains in areas of greatest potential risk (Critical Routes and Venues) Monitor or replace mains as necessary. Develop contingency plans for all examined spans. 10

Examining Source to Venue Mains 385 km Examined 72 chambers installed These trunk mains provide clean water from Thames Operational sites to venues and training areas. Flag mains with a significant failure history for additional monitoring chamber installation. 11

London 2012 - Resilience Mitigating Risk to the Public & Events Risk is highest where games-critical routes intersect assets, and within proximity of venues. These are areas where the largest event participant groups will be and where access will be the most limited. 12

The Olympic Route Network Network Critical routes Analysis routes were were is ground-level. identified by by TFL TFL and and Assets LOCOG were (in (in red). red). examined Mains history metre was by metre examined along Olympic within 50 routes. metres of either side of a critical route. 13

London 2012 - Resilience Mitigating Risk to the Public & Events Flag highest risk distribution mains for renewal Flag lower risk distribution mains for monitoring via noise logger Flag high risk trunk mains for additional chamber installation (if none currently in place) 14

The Olympic Venues 200 m Olympic Consider Venues all all routes may have near higher venues, foot traffic including surrounding the the original areas. 50 50 metre buffer area. Examine assets around the venues within 200 metres. 15

London 2012 - Resilience Mitigating Risk to the Public & Events Flag highest risk distribution mains for renewal Flag lower risk distribution mains for monitoring via noise logger Flag high risk trunk mains for additional chamber installation (if none currently in place)

Critical Areas Inside the North/South Circular The Assets highest Mitigation within 50 solutions concentration metres in of place these of (rehab, activity routes were existing was within monitoring, the examined. North new and monitoring, South Circular noise Roads. logging) Critical Routes within this area included Core, Venue, Training, and Alternative. 17

London 2012 - Resilience Total Assets Examined 372 km of Source to Venue main 451 km of Trunk Main (by flood risk) 250 km of Trunk Main (by critical route) 70 km of Trunk Main (near venues) 436 km of Distribution Main (by critical route) 4.5 km of Distribution Main (near venues) History of all fittings, valves, and joints along all included mains 18

The End Result 219 Existing Trunk Main Chambers 72 Additional Olympic Trunk Main Chambers 3.6 km of distribution mains renewal 600+ Noise Loggers with 24 hour per day monitoring 19

London 2012 Monitoring technologies Big city equals big noise: Underground stations, non-stop traffic routes, overnight filling etc. Security: liaise with police and authorities, notify deployment and label equipment and seal covers

London 2012 Monitoring technologies Once installed, leaks are identified by the leak noise logger using an algorithm (noise level and consistency) Data is transmitted by the data logger via low cost GPRS or SMS telemetry This removes the requirement for expensive site visits and drive by data retrieval. 21

London 2012 - Organisational management Event team of 226 staff created Five hubs set up across London to manage events Core team working 24/7 Event Duration Period 1 15 th July 25 th July Period 2 26 th July 12 th August Period 3 13 th August 27 th August Period 4 28 th August 9 th September Senior manager event management Single point of contact with duty manager for all Olympic related issues Three conference calls per day Ring fenced R&M crews to provide 30 minute responses around venues and 3 hours elsewhere irrespective of traffic Most R&M work undertaken through the night, starting at 11pm 22

London 2012 - Outcome Overall, the games was a great success No major incidents during the games Customer demand changed little Able to undertake active repairs between Olympics and Paralympics Fast recovery of leakage achieved after the games with the planned increase in resource Although leakage increased during the games, it has not jeopardised delivery of our leakage target 23