Water Resources Forum Thursday 14 th March 2019 An update. - - PowerPoint PPT Presentation
Water Resources Forum Thursday 14 th March 2019 An update. Further consultation on our revised draft WRMP19 (October November 2018) Initial feedback received from Ofwat on our draft Business Plan (January 2019) Continued to
(October – November 2018)
Business Plan (January 2019)
regulators, other water companies and stakeholders
Today we will provide an update on our WRMP19 and outline the next steps.
10:00 Welcome and introductions Richard Aylard 10:10 Update on our WRMP19 Chris Lambert & Adrian McDonald 10:50 Update from Affinity Water Doug Hunt 11:15 Break 11:30 Making the best use of resources Tony Owen 12:00 Update on key developments Tony Owen & Trevor Bishop 12:45 Lunch 13:30 Overview of future work Chris Lambert 14:00 Protecting vulnerable chalk streams Chris Lambert 14:30 Open discussion Richard Aylard 15:00 Meeting close
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By 2045 there will be an additional two million people living in our
Our climate is changing. There will be less rain when we need it most, with more extreme weather events. Our abstractions must be sustainable. We need to balance the water we take for our customers with what we leave in the environment.
These challenges face the whole of the South East region, not just Thames Water’s supply area
Date Activity
Since 2015 Engagement with customers, stakeholders and other water companies to inform the development of our draft plan Spring 2018 Public consultation on draft WRMP19 including customer research and local engagement Summer 2018 Considered >540 representations received to the public consultation and new information, and made changes to our draft plan September 2018 Published our draft Business Plan
October 2018 Published our response to the consultation (SoR No 1) and published our revised draft plan Autumn 2018 Further public consultation on the revised draft WRMP19 including customer research and local engagement January 2019 Feedback from Ofwat on our draft Business Plan Early 2019 Considered > 750 representations and refined parts of our revised draft plan
Email and Written Online
For the email and written responses: Regulators and appointed organisations: EA, NRW, Ofwat, NE, HE, CCW and CCG Stakeholders: ~ 15 including councils, environmental and campaign groups GARD (>200 pages) and individuals opposing the reservoir: ~240 CCT and responses supporting the restoration of the Cotswold Canals: ~ 95 Angling Trust and linked responses: ~ 5
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Topic Issues
Leakage reduction
Managing demand
Teddington Direct River Abstraction
Deephams reuse
Tideway
Oxford Canal Transfer
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Topic Issues Reservoir
environmental impact, safety concerns
Severn - Thames Transfer
species
Abstraction and protection of the environment
chalk streams
achieve the same outcome. Preferred programme • More transparent and accessible explanation
Brochure
SoR Main Report
rdWRMP19
SoR Appendices
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against severe drought
combined with resource development
1 in 500 year drought resilience, further environmental protection and infrastructure built in a timely way
Section 10 - Programme appraisal:
− Overview and improved framework − Adaptive alternative options approach – options decision tree − 2022/23 decision point − Confirmation of alignment with neighbours and WRSE
Section 11 – Our preferred plan:
− Preferred plan at WRZ level and supply area overview − Overview of further work − Monitoring plan
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Our Plan includes an adaptive approach to ensure resilience to key challenge points: 1 in 200 drought protection in 2030 and regional need from 2037/38
On-going programme of leakage reduction - reducing by 20% over the next 5 years (2020-2025) Continued installation of smart meters – 700,000 meters Helping our customers use less water - smarter home & business visits Buy surplus water from other 3rd party organisations (29 Ml/d) – RWE Didcot & CRT Oxford Canal Develop new groundwater sources (28 Ml/d) and water reuse scheme (Deephams 46 Ml/d) Strategic Option Studies – 2022/23 decision point Monitoring Plan
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Green = Preferred path; Blue = Alternative paths; Orange = Paths not currently feasible
Our adaptive plan sets out the need for a decision in 2022/23.
Deephams / Beckton Re-Use scheme have up to 8 year lead times.
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Thames Water Resources Forum
14 March 2019
around 3.6 million people.
some of which have the highest demand for water in the country
stressed areas in the UK and economically critical infrastructure e.g. Heathrow, Stansted and Luton airports
population with over 50% by 2080
raw water storage of surface water
companies in the South East to improve customer resilience.
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Our communities
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Key milestones
2017
2018
2019
stakeholders
reducing abstraction from Chalk sources
infrastructure
term. Revised dWRMP19
Revised dWRMP19
Leakage reduction Our plan includes an 18.5% leakage reduction by 2025 and aims towards 50% leakage reduction by 2050. This is through increasing intensity of leakage activities, innovation and efficiency, supported by data and smart metering initiatives. Per Capita Consumption (PCC) Our plan meets PCC targets of 129 litres per person per by 2025 and aims towards 110 litres per person per day by 2045. This is through a suite of water efficiency and metering options as well as working collaboratively with government and communities to support in reducing customers water usage.
Revised dWRMP19
Adaptive Approach
challenges that we face that is both robust and transparent.
maintain the balance between supply and demand through investments in strategic supply
Sustainability reductions
from chalk groundwater by 2025. Drought resilience
March 2024 – a significant step change from our current levels of service to drought. Supply
investing in Sundon pre-conditioning plant to allow water to be used more widely.
needed post 2060s, although there is a possibility for deferral depending on demand management progress (see later) and external risks.
Revised dWRMP19
and the region in the long term.
substantive investigations in AMP7 into our two key options:
1. Current best value 1st choice, the Strategic South East Reservoir (SESR) 2. Current best value 2nd choice and back up adaptive scheme, the Grand Union Canal (GUC) transfer
scheme that means there are uncertainties over the scope of treatment needs
Working together for a common goal
during the next AMP7 before a key decision point in 2023, working with Thames Water on the SESR and the Canal and Rivers Trust (CRT) on the GUC transfer.
Water Resources in the South East group.
supply investigations following the Ofwat Initial Assessment of [PR19 Business] Plans (IAP). This is supported by WRSE and we continue to collaborate with other water companies involved. These investigations cover the SESR and GUC transfer as above, plus the Severn-Thames Transfer and potentially the South Lincolnshire reservoir transfer.
support the future market for water resources.
Working together for a common goal
Our approach
decision making process that maps out future scenarios and the best solutions for them
the decision making process
to ensure a ‘no regrets’ position
2022/23 is in alignment with
companies.
Revised dWRMP19
Take part in our survey about
Resources Management Plan
Our consultation period runs from: 1st March - 26th April 2019 To give your views, visit:
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2015/16 2016/17 2017/18 2018/19 2019/20 Regulatory Target (Ml/d) 649 630 620 612 606 Actual leakage Level (Ml/d) 642 677 695
708 636
forecast to 636 Ml/d
performance
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terms of average jobs / week & have outperformed the plan
emphasis on Ml/d reduction performance
26,000 acoustic loggers and trialling of aerial detection methods
March and the summer heatwave
would expect to see based on the activity undertaken
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2018/19 Forecast Impact of Weather Related Leakage
2no ave winters Ave + bad winter 2no bad winters
We continue to plan for 606 Ml/d
Updated 2019/20 forecast
Our supply-demand balance is in c60Ml/d surplus by the end of AMP7
rdWRMP19 Apr’19 update
20% reduction in AMP7 accounting for delayed ALC recovery Surplus
rdWRMP19 S/D Balance Updated rdWRMP19 S/D Balance rdWRMP19 Leakage Updated rdWRMP19 Leakage
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For a typical District Meter Area…
Acoustic loggers
localisation of big leaks
Smart Meters
and what is leakage
flow data
Bulk metering of private mains
Water Efficiency
customers on their usage
District Meters
15min DMA meter data
Billing
accounts
supply arrangements
Job Management
network and customer job activity
Activity 2020-25 2025-30 2030-35 2035-40 2040-45 2045-50 Smart Metering CSL DMA Enhancement Mains Rehabilitation Innovation Pressure Management ALC delayed recovery Total 99* 60 35 42 25 10
£m/ Ml/d 3 10 25 30 45 45
Strategic Options
Deephams Reuse (46 Ml/d) SE Strategic Reservoir Option (294 Ml/d)
* +34 Ml/d AMP6-7 carry-over
Improved targeting & delivery
20% reduction
270 Ml/d
50% reduction
Improved data analytics
47% 100% connections metered
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above historic levels to improve performance and resilience
are concerned that we will not be able to deliver the outcomes customers want, and the environment needs, on the basis of Ofwat’s IAP position.
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consumption (PCC) and severe drought restrictions targets in AMP7
management activity
comparable basis
strategic supply options
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Actions required by 1 April: 1. In conjunction with the other companies involved, jointly propose methods for collaborative working including …… how consistent assumptions and decisions will be made……… 2. Provide more detail on the gated process, the deliverables, timings and expenditure allocations at each gate 3. Propose ODI-type mechanisms to allow allocated funding to be recovered by customers in the event of the scheme not progressing……..
Gate Date Activity Total cost Allocation 1 2021 Using consistent assumptions undertake initial design and costing
level regional models and filter. 15% 2 2022 Detailed design with reduced uncertainty in costs and benefits. Re-tested in regional models and company models. 20% 3 2024 Work towards securing planning permission for remaining schemes applying further filtering where necessary 65% Option Name Allocation Joint Working SESRO £36.5m Southern & Affinity Severn Thames Transfer £25.7m UU & Severn Trent Teddington Re-Use £64.2m TW to Southern Transfer £10.5m Southern & Affinity TW to Affinity Transfer £13.6m Southern & Affinity £150.5m
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Regulators:
Water companies:
Developing a response for 1st April:
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Senior Steering Group
Chair: Jean Spencer Freq: Quarterly Strategic oversight of national framework
Modelling Advisory Group Chair: EA Freq: Quarterly Attended: Tech leads regional groups What: Technical support to modelling and consistency Output: Agreed modelling scenarios for the national framework and common datasets to support regional plans Technical Advisory Group Chair: EA Freq: Quarterly Attended: All water company tech leads What: Technical development of water resources planning Output: Updated water resources planning guideline Regional Coordination Group Chair: Jean Spencer Freq: Quarterly Attended: Regional planning leads What: Build coordination across the groups and between the national framework and regional groups Output: Coordinated regional plans, agreed papers for senior steering group, prioritising and addressing barriers to collaboration
WCWR WRW WRN WRSE WRE Severn WG?
Regulatory Alliance Chair: Freq: Quarterly Attended: ? What: See separate slide Output: See separate slide
National/Regional Structure
Company WRMPs
National/Regional Structure
Regional Plans Must:
Regional Plans Should:
Regional Plans Could:
National Framework has set out what regional plans Must, Should and Could do.
National/Regional Structure
Year Month Work area / Activity 2019 Regional planning groups established including involvement of other sectors. 2019 Contribute to national framework, including involvement in modelling group 2019 December National Framework published including:
2020 February Statement of resource position from each region (surplus/deficit) Development of regional plan, including modelling 2021 August Regions present draft plans and discuss with regulators and other groups to make sure they join up and match 2021 December Informal consultation of regional plans and pre-consultation of water resource management plans setting out how regional plans will feed in to company plans 2022 August Publish regional plan 2022 August Submit draft WRMP to Defra
National/Regional Structure
1. Shift from producing a regional strategy to a regional multi sector resilience plan tailored to meet the needs and challenges of the Region. 2. Build a stronger multi sector capacity within the process to ensure a best value Regional Resilience Plan which is inclusive to the needs of all water users/stakeholders. 3. Develop stronger links and coordination with other regional groups and the national framework. 4. Develop our approach to resilience, building on ‘resilience in the round’. 5. Explore opportunities for greater use of markets and competition.
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1.On-going investigations on the River Severn
Issues related to water availability, resilience and environmental impact.
River Cherwell
inform the environmental baseline conditions
reaches of the River Cherwell
Oxford Canal and the River Cherwell (downstream to Cropredy)
net environmental gain
Teddington DRA is not considered to be feasible option because compliance with WFD
salmonid migration)
Activity:
Further investigations to address concerns about potential environmental effects on the River Lee, Lee Estuary and Thames Tideway
the Thames Tideway
Beckton reuse scheme is an alternative reuse option
review environmental effects relating to the construction
Thames Tideway and on aquatic species that are sensitive to small changes in salinity
required.
Review previous assessments of the impact of the reservoir discharge on water quality and temperature and consider the risks of discharging invasive non-native species (INNS)
quality (including algae) in the reservoir;
conditions;
change scenarios;
Thames;
facilities;
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Source: WWF public opinion poll, April 2017
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“Thames Water is committed to a long term aim to cease abstraction from vulnerable watercourses and chalk streams. However we can’t achieve this commitment in one go, as it will take many years to put in place new infrastructure to replace these water sources. We have made commitments in the next 5 years to reduce abstractions and will continue on this course thereafter to achieve our long term commitment by 2050.”
Source: Thames Water draft Business Plan, September 2018
providing benefit to Oxford watercourses
will review the results of studies before determining next steps
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”TW’s admirable commitment to cease abstraction which impacts chalk streams.” “The Abingdon reservoir is needed now. Why wait until 2037? That might already be too late to save already over-stressed chalk streams.” ”Affinity’s needs can be met quickly and cheaply through other means. Pressure on chalk streams would be removed within 5 years, 15 years less than planned [with the reservoir].” ”It is good to see that the Abingdon Reservoir is also supported by Affinity Water who hope to benefit from the project by up to 100Ml/d, which would enable them to reduce abstraction from the chalk aquifers
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THE CONTEXT
worthy of protection in the UK. Their suggestions included forests or woodland, rivers or lakes, and the sea.
protecting the environment because:
Chalk streams did not emerge as an important habitat among customers, except for
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THE CONTEXT
customers downgraded the importance of environmental protection to some extent.
such as Brexit or the NHS, that they saw as higher priority than protecting the environment.
“I do want to protect the environment, but I care more about getting my wages at the end
HH customer, Walthamstow
Wider issues are more important Protecting the environment is ‘not for me’
that protecting the environment did not relate to them personally.
immediate, everyday concerns, such as getting paid.
environment was the responsibility of the government or other organisations instead of their own.
“If you were asking if the environment was in my top 5 things to worry about I would say yes, but if you asked if it was in my top 3, I would say no. It would be terrorism, the NHS, you know, those immediate things.” HH customer, Newbury
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PROMPTED VIEWS ON ABSTRACTION
streams, customers were quick to express support for their protection after hearing more about them, especially on consideration of how rare an environment they are.
Thames Water’s abstraction and how it might have an adverse effect on chalk streams.
to provide solutions when a watercourse is at risk and the number
solution to mitigate the impact were a cause for concern.
10Chalk streams are a globally rare habitat
southern England.
“I would like my grandchildren's children to have the experience of fishing in streams and splashing around as me and my own children did. I find the rivers and streams very relaxing and feel they are beneficial to wellbeing.” HH customer, Dartford
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PROMPTED VIEWS ON ABSTRACTION
chalk streams and vulnerable watercourses when shown the viewpoint of environmental groups and given information about the environmental damage that abstraction can cause.
“I support your commitment to decreasing abstraction from vulnerable habitats and chalk streams, this is better for our and our environment's health.” HH customer, Walthamstow
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PROMPTED VIEWS ON ABSTRACTION
whether they support Thames Water’s protection of chalk streams (on a scale from 0 to 10) the average score given is 9 out of 10.
Worksheet 2
On a scale of 0-10, how far do you support the idea of Thames Water protecting rivers and chalk streams?
1 2 3 4 5 6 7 8 9 10
“Thames Water is committed to a long term aim to cease abstraction from vulnerable watercourses and chalk
infrastructure to replace these water sources. We have made commitments in the next 5 years to reduce abstractions and will continue on this course thereafter to achieve our long term commitment by 2050.”
that it will have on their bills.
customers are willing to pay to support the commitment to reduce abstraction.
“So long as it’s not going into their pockets that’s fine.” HH customer, Walthamstow “You just have to put it in terms of coffee – it’s a coffee at Starbucks.” HH customer, London
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WRMP19
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