Simon Hinsley Project Sponsor

LEGACY BUILDING Delivering the Birmingham Resilience Project

Clean Water Modelling Advisory Group Autumn Conference 14th October 2015

1876

Faced with a rising death rate caused by contagious disease,

Joseph Chamberlain forcibly purchases the

Birmingham Waterworks Company

1880’s

Faced with outbreaks of contagious disease, Sir

Thomas Martineau starts the search for an

alternative supply of water to meet future

demand

1891

Having completed his feasibility study,

James Mansergh submits proposals to Birmingham

Corporation Water Committee

VICTORIAN PIONEERS

3

THE NEED FOR RESILIENCE

We carried out detailed analysis of failure mechanisms

Including flood inundation mapping to determine potential consequences

We identified we needed the capability to take the EVA off-line for extended periods to carry out major maintenance and refurbishment work

PROFILING RISK

We identified we needed the capability to take the EVA off-line for extended periods to carry out major maintenance and refurbishment work

DEVELOPING THE CASE FOR INVESTMENT

OPTION EVALUATION

New Lickhill River Intake

Severn Siphon

River Severn

Frankley WTW

Severn Aqueduct

Meriden reservoir (from Strategic Grid)

Trimpley River Intake

118km

Elan Valley Reservoirs

Edgbaston boreholes

New pump station

New pipeline

Asset can be maintained when alternative supply in use

Elan Valley Aqueduct (West Free flow)

Elan Valley Aqueduct (East Free flow)

Norton & Beechtree boreholes

South Staffs Water Barr Beacon to

Perry Barr

B’ham Ground Water boreholes

20Ml/d

BIRMINGHAM RESILIENCE – OVERVIEW

Birmingham

Critical exports

“The alternative supply will allow us to undertake planned EVA maintenance events (up to 50 days every other year), allowing a 30 day ‘dry possession’ of the aqueduct.

It also provides a critical back-up supply in the event of an unplanned shutdown”

11Ml/d

Process Loss

245 Ml/d * (raw inlet) River upgrade,

Dual stream & recirculation

“To provide for a continuous water supply to our customers in Birmingham in the event of either planned maintenance or an emergency shutdown on the EVA and the removal of specified single points of failure from the Frankley WTW process”

INTEGRATED TEAM

RIVER SEVERN ABSTRACTION SITES

Trimpley

Blackstone

Lickhill

LICKHILL QUARRY RIVER SEVERN INTAKE SITE

PUMPING MAIN ROUTE CORRIDOR

0

50

100

150

200

250

300

350

0 5000 10000 15000 20000 25000 30000

Hea

d/Pr

essu

re/E

leva

tion

(m)

Chainage (m)

BPT2A R2B at 134 Ml/d Rising Main 1200mm Pump Lift = 274.1m Gravity Main 1000mm Head (m)

Ground Level

• Several route corridors & configurations assessed, some involving extensive tunnelling and others pumping to a high-level ‘break pressure tank’.

• Southern route corridor, with break pressure tank selected as providing lowest NPV & lowest impact

TRIMPLEY PILOT PLANT Optimising the ‘Actiflo’ process & Rapid Gravity Filtration

• £3.0M investment to reduce risk and optimise process design • Commissioned April 15 with 10-12 month trial • Location allows process evaluation on Elan

Valley water, River Severn water and blends of the two

PUBLIC CONSULTATION

OPERATIONAL READINESS

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Strelley SR

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Ambergate SR

Drum Hill SR

Hallgates SR Leicester

Coventry

LITTLE EATON WTW

MELBOURNE WTW

CROPSTON WTW

WHITACRE WTW

FRANKLEY WTW

TRIMPLEY WTW

ates S

STRENSHAM WTW

Elms Farm PS

Ragdale Booster

Meriden Link PS

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Strategic Grid – EVA Maintenance Mode (Final Business Plan 55Ml/d flow to Birmingham)

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NB all flows, demands, outputs etc are subject to ongoing verification

New SynerGEE model of the complete grid being constructed. To be used in conjunction with MISER water resource modelling to support decision making on grid flows. Distribution quality modelling also to be undertaken, to assess impact of using 4 sources of supply in Birmingham.

STRATEGIC GRID MODELLING

Field test calibration against pressure/flow/level as standard, with turbidity/chlorine/pressure transient also recommended

DSR 1

DSR 2

Pump

Throttle is located at DSR inlet

Pumps are not performing in accordance with

assumed pump curve

Valve checks

Pump testing

Sections in red are high priority, as flow rate increases are required for Birmingham Resilience

Sections in yellow require field testing but do not require flow rate increases for Birmingham Resilience

2014/15 2015/16 2016/17 2017/18 2018/19 2019/20

N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M

BIRMINGHAM RESILIENCE SIMPLIFIED TIMELINE

Award of main D&B contract c£200M December 2015

BIRM

ING

HA

M R

ESIL

IEN

CE

Public Consultation (Build)

Land Purchase

Outline Design/Env’l Statement

D&B Contract Award

Planning Submission /Abstraction

Planning determination period

Planning Approval

Detailed Design

Site Start

Construction

Commissioning

‘Early Contractor Involvement’ award

April 2015

Planning applications & Abstraction Licence

December 2015

Planning approval and site start

July 2016

Formal ‘handover’ July 2019

OPERATIONAL READINESS

First planned EVA shutdown

November 2019

Introduction to ‘The Future Water Supply of Birmingham’ 1891 Thomas Barclay, Water Committee member at the City Council of Birmingham

“Perhaps the heaviest responsibility resting on any local government is the establishment and maintenance of a proper supply of water for those under its care. How unpardonable a failure in this all important matter! Yet how vast the task”