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Leakage Management Contracting
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Group overview RPS offers a wide variety of
services from its network of offices throughout
the UK, Ireland and the Netherlands and its bases
in Paris and Frankfurt. RPS is a
multi-disciplinary organisation with five broad
areas of expertise in Risk management Planning
consultancy Building health Water management
Air quality RPS has a unique understanding of
the commercial pressures that result from the
implementation of environmental decisions and
delivers consultancy advice in a commercial and
practical way. We maintain a divisional structure
that reflects the main regional markets in which
we are located. We operate the financial and
quality management systems appropriate to a
listed company. We also have internal management
systems on safety and the environment and promote
ethical business standards through our policies
on social responsibility, customer care and equal
opportunities in employment.
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Water Services overview RPS Water Services (RPS
WS) provide strategic consultancy, asset network
management and operational contracting services
to the water industry and water users. The
identification of these three service areas
follows a similar separation of responsibilities
in the structure of the UK water industry.We
believe that to provide best value solutions to
our clients there is a dual requirement to be
able to provide a single specialist service when
it is needed together with the economic and
efficiency benefits of a comprehensive integrated
service when it is applicable. RPS Water
Services as part of the RPS Group can provide
clients with a truly comprehensive range of
services giving them total solutions.These range
from strategic consultancy on economics or
resource development to on the ground operational
duties such as leak detection and valve
maintenance. The overall scope of services
offered includes the capabilities of the Group in
environmental management, due diligence, planning
and risk assessment together with the water
service specialist areas of work. In all project
commissions RPS WS will provide an independent
service backed by the capability and resources of
the RPS Group. RPS Water Services are structured
with an account manager appointed for each
client. We aim to provide clients with continuity
and insight into their specific issues by
developing relationships and understanding.
Specialist technical areas, for example IT
solutions or leakage economics, are provided
through operational or Group divisional offices.
RPS Water Services are working for the majority
of water companies and authorities in the UK and
Ireland, with manpower in excess of 450 full-time
personnel, a fleet of 275 survey vehicles and
specialist equipment and software valued at more
than 3.5m.
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Water Services training RPS Water Services has
fast become a recognised training provider to
the water industry and is currently supplying
training services to several of the major
companies. RPS Water Services is a CABWI
accredited NVQ assessment centre, providing the
necessary training and assessment for its own,
and clients, staff, to gain industry
recognised qualifications. Along with a number of
qualified NVQ assessors RPS WS have operational
specialists with many years experience in the
water industry who support the training team.
RPS Water Services offer a range of tailored
training courses, which are delivered to meet
the clients requirements. As a leading specialist
in network and leakage management clients can be
confident that course tutors will be practising
experts.
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Water Services Quality Assurance RPS Water
Services operate a Quality System meeting the
requirements of BS EN ISO 9001 2000. Training
is carried out to ensure that all staff are aware
of the requirements of the Quality Management
System. Water Services Health Safety RPS
Water Services has a Safety Management System in
place to ensure the safety of all its employees
and other people affected by the works
undertaken. The Health and Safety Policy
Statement is reviewed on a regular basis for the
approval by the RPS Group board of
directors. Water Services Environmental Policy
RPS monitors the implementation of its corporate
environmental policies through its certified
quality management system (ISO 9001 ISO 9002).
RPS has also achieved full ISO 14001
certification of its Environmental Management
System for its Oxford environmental consultancy
office. RPS Water Services policy is to minimise
disruption to the environment, our Clients and
their Customers. RPS Water Services employees are
made aware of its Environmental Policy and are
provided with suitable training to improve
awareness and clearly outline individual
responsibilities.
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Water Services performance based leakage
management services Performance contracting
delivers cost effective detection based on
savings achieved and improves the accuracy of
data and security of reporting structures
through rigorous examination driven by the
contract imperative. RPS Water Services
pioneered the provision of leakage management
services where payment is purely based on the
reduction of leakage achieved as a direct result
of its activities. RPS WS have been operating
such contracts for 10 years. The concept of
performance based contracts is simple. When RPS
WS are successful, the client has been successful
in achieving its goal of reducing its losses and
efficiently maintaining them at an appropriate
level. One of the key benefits to the client of
an effective performance contract is the
significant reduction in supervision burden
associated with payment on a dayworks basis. For
RPS WS to be successful, it is essential that it
deploys highly motivated and appropriately
skilled and experienced staff and that they
achieve real results.
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RPS Water Services performance contract commenced
January 2000
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• Critical Success Factors
• The contractor needs to .
• resource the contract with staff that are
  suitably experienced, well motivated,
  flexible and determined
• provide accurate leak reports to meet the
  clients requirements
• foster an effective relationship between its
  own operational staff and those of its client
• be responsive to the clients needs

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• Critical Success Factors
• The client needs to .
• provide accurate, timely and reliable flow data
• provide accurate plans of its assets
• ensure speedy repair of leaks reported by the
  contractor (lt10 working days)
• foster an effective relationship between its
  own operational staff and those of its
  contractor
• celebrate good performance

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Water Services software solutions RPS Water
Services has considerable operational experience
in analysing and reporting performance, including
the development of reporting tools and
systems. LMARS Leakage Monitoring and
Reporting Software is an integrated leakage
analysis solution developed over the last
three years by RPS WS. LMARS is currently
being used for primary reporting by a number
of water companies. PLAS Pressure Leakage
Analysis Software (PLAS) is a solution developed
by RPS WS to assess potential pressure management
schemes. PLAS utilises asset and logged
information to determine the potential water
saved by a proposed pressure management scheme.
Using the costs of the schemes and the cost of
water it ranks the potential schemes in order of
cost effectiveness.
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Water Services evidence of success Employer
Anglian Water Services Ltd Anglian House
Ambury Road Huntingdon Cambs PE23
3NZ Location throughout entire region Leakage
detection techniques adopted Sounding leak
noise correlation acoustic logging visual
inspection water balancing. Start date
December 1998 Completion date
December 1999 Approx. fee value 500,000
pa Principal achievements Reduced leakage by
6 Ml/day. Provided geo-referencing of trunk
mains and associated fittings using mobile
GIS/GPS system.
Contract description Trunk Main Leakage
Detection Inspection of all trunk mains, service
reservoirs, water towers and pumping stations
upstream of the distribution zones.
Identification, assessment and reporting of
leakage and waste found along each trunk main and
at each site inspected. Reading of all inlet,
outlet and other bulk water meters and the
undertaking of water balances of the system as a
whole. Preparation of plans for remedial work.
Assessment of the levels of leakage and waste
identified.
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Water Services evidence of success Employer
Anglian Water Services Ltd Anglian House
Ambury Road Huntingdon Cambs PE23
3NZ Location throughout entire region Leakage
detection techniques adopted Sounding (using
listening stick, electronic listen stick,
electronic ground microphone) leak noise
correlation step-testing. Start date
October 2001 Completion date July
2002 Approx. fee value 275,000 Principal
achievements Estimated leakage saving in
excess of 10Ml/day.
Contract description Network Leakage
Detection RPS WS staff were directed by the
clients leakage management team to work in
partnership with in-house staff to meet company
leakage targets.
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Water Services evidence of success Employer
Dwr Cymru Welsh Water Pentwyn Road
Nelson Treharris Mid Glamorgan CF46
6LY Location throughout entire region Leakage
detection techniques adopted Sounding (using
listening stick, electronic listen stick,
electronic ground microphone) leak noise
correlation acoustic logging step-testing
dynamic step-testing. Start date
April 2000 Completion date April
2003 Approx. fee value 2 million Principal
achievements 46.5 Ml/day reduction in
reported leakage.
Contract description Integrated Leakage
Management RPS WS is working in partnership with
Welsh Water (Dwr Cymru) to achieve significant
reductions in reported leakage. An Integrated
Leakage Management Strategy has been developed
within which the following strategic projects are
being undertaken Active leakage detection
pressure management scheme design, implementation
and optimisation development of reporting
systems, procedures, tools and software analysis
of ELL analysis of LNU allowances for both
domestic and non-domestic properties development
of leakage manuals and best practices.
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Water Services evidence of success Employer
South East Water plc 3 Church Road
Haywards Heath West Sussex RH16
3NY Location Northern region Leakage detection
techniques adopted Sounding (using listening
stick, electronic listen stick, electronic ground
microphone) leak noise correlation acoustic
logging step-testing dynamic step-testing. Start
date January 2000 Completion
date March 2002 Approx. fee value
460,000 Principal achievements Assisted
client in reducing their monthly total losses by
approximately 30 Ml/day (30).
Contract description Performance Leakage
Detection RPS WS work comprised the detection,
location, marking and reporting of leaks within
the distribution network and customers
properties. Payment for the contract was
typically based on a reduction in total losses
(as measured by the Companys district metering
system) applied to rates provided within a
payment schedule. The determination of the change
in nightline as a result of leakage repair was
agreed during monthly meetings.
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Water Services evidence of success Employer
South West Water Ltd Peninsula House
Rydon Lane Exeter EX2 7HR Location
throughout entire region Leakage detection
techniques adopted Sounding (using listening
stick, electronic listen stick, electronic ground
microphone) leak noise correlation acoustic
logging step-testing dynamic step-testing. Start
date 1995 Completion date
2003 Approx. fee value 1.25 million
pa Principal achievements Assisted client in
reducing their total losses to ELL. Efficiently
maintained total leakage at ELL.
Contract description Network, Customer
Trunk Main Leakage RPS WS staff are directed by
the clients leakage management team to work in
partnership with in-house staff to meet company
leakage targets. RPS WS staff also undertake
customer leakage detection work including
administration support trunk main leakage
surveys and other water distribution support
duties. The system knowledge gained by RPS WS
locally based staff over the period of the
contract is a key factor in developing and
maintaining efficient leakage detection
procedures.
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Water Services evidence of success Employer
Sutton and East Surrey Water plc London
Road Redhill Surrey RH1 1LJ Location
throughout entire area of supply Leakage
detection techniques adopted Sounding (using
listening stick, electronic listen stick,
electronic ground microphone) leak noise
correlation acoustic logging step-testing
dynamic step-testing. Start date
August 2003 Completion date March
2005 Approx. fee value 1.5 million Principal
achievements Assisted client in reducing their
total losses by approximately 7 Ml/day (22) to
ELL. Efficiently maintained total leakage at ELL
for the last 4 years. RPS WS awarded further 2
year contract until March 2004.
Contract description Performance Leakage
Detection RPS WS work comprised the detection,
location, marking and reporting of leaks within
the distribution network. Payment for the
contract was typically based on a reduction in
total losses (as measured by the Companys
district metering system) applied to rates
provided within a payment schedule. The
determination of the change in nightline as a
result of leakage repair was agreed during
monthly meetings.
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Water Services evidence of success Employer
Three Valleys Water plc PO Box 48 Bishops
Rise Hatfield Hertfordshire AL10
9HL Location 86 DMA throughout Resource Zones
4 (North London) 6 (North Surrey) Leakage
detection techniques adopted Sounding (using
listening stick, electronic ground microphone)
leak noise correlation acoustic logging
step-testing (where permitted) Start date
July 2001 Completion date
on-going Approx. fee value 75,000 Principal
achievements Working in conjunction with the
clients partnering repair and maintenance
contractor, Clancy Docwra, RPS WS successfully
managed the following -

• Prioritisation of leakage repairs
• Reduction in average repair times from gt20 days
  to approx. 7 days
• Reduced leakage by 4.37 Ml/day
• Contract description Performance Leakage
  Management
• The RPS WS project team are working closely with
  the clients staff and partnering repair and
  maintenance contractor to validate the integrity
  of DMA and the leakage data collected prioritise
  DMA for active leakage detection activity and
  implement that activity prioritise co-ordinate
  repairs.
• Project management is provided on a dayworks
  basis with active leakage detection provided
  purely on a performance basis.

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Water Services evidence of success Employer
Three Valleys Water plc PO Box 48 Bishops
Rise Hatfield Hertfordshire AL10
9HL Location Resource Zones 3 (Western Region)
4 (North London) Leakage detection techniques
adopted not applicable Start date
June 2001 Completion date
on-going Approx. fee value 235,000 Principal
achievements Significantly increased the
number of DMA reporting validated leakage data in
Resource Zone 4. 258 DMA checked of which 46
were found to be breached - most of these are now
operating correctly. All work completed without
incurring any water quality complaints and only
minimal pressure disturbance. Contract
description Performance DMA Validation
Pressure Audit RPS WS staff systematically
checked the integrity of DMA. RPS WS then
produced method statements for the closing in
of the breached DMA. Having deployed pressure
loggers, any effects caused by the
re- configuration of the network were
monitored. RPS WS carried out Average Zone Night
Pressure surveys in 200 DMA. RPS WS staff
interrogated the clients GIS to identify
pressure logging locations. Data from the
deployed loggers was subsequently use to
calculate an AZNP for each DMA. Both aspects of
this contract were provided purely on a
performance basis.
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Water Services evidence of success Employer
United Utilities plc Dawson House Great
Sankey Warrington WA5 3LW Location
Wigan Leakage detection techniques adopted
Sounding (using listening stick, electronic
listen stick, electronic ground microphone) leak
noise correlation step-testing. Start date
March 1998 Completion date
September 1998 Approx. fee value
225,000 Principal achievements Assisted
client in reducing total losses in the Wigan area
by approx.7 Ml/day (30).
Contract description Network Leakage
Detection RPS WS deployed leak detection teams to
the Wigan Water Supply area to conduct
surveys. The teams worked under the direction of
a RPS WS Project Manager and Senior Technician
based in the local North West Water office. Their
role was to analyse flow and pressure data,
compile plans and direct the field staff to
prioritised areas requiring active leakage
detection. Team activity was closely monitored
and reported to the client to ensure effective
and efficient performance was maintained.
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Water Services evidence of success Employer
United Utilities plc Dawson House Great
Sankey Warrington WA5 3LW Location
throughout entire region Leakage detection
techniques adopted not applicable Start date
July 1999 Completion date
on-going Approx. fee value 125,000
pa Principal achievements Maintenance,
optimisation extension of water pressure
management.
Contract description Pressure Management
Maintenance Optimisation RPS WS
provides a PRV maintenance and optimisation
service for United Utilities. An RPS WS Project
Manager has delegated responsibility for
programme management. In addition to the
logging and maintenance of PRVs, RPS WS engineers
determine those zones which would benefit most
from pressure management optimisation, resulting
in maximum financial savings through reduction in
leakage and reduced water into supply.
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Water Services evidence of success Employer
United Utilities plc Dawson House Great
Sankey Warrington WA5 3LW Location
throughout entire region Leakage detection
techniques adopted not applicable Start date
June 1999 Completion date
Ongoing Approx. fee value 1.2m pa Principal
achievements Identified actual losses of 15
Ml/day and paper losses of 30 Ml/day. Contract
description Losses Leakage
Reconciliation RPS Water Services were engaged by
United Utilities to identify and analyse losses
outside DMAs in 12 of the companys demand
zones. The key objective within the scope of the
project was to deliver a losses and leakage
management reporting system, from treatment works
to DMA meters.
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Water Services evidence of success Employer
Wessex Water Services Ltd Claverton Down
Road Claverton Down Bath BA2
7WW Location Somerset, Dores, Avon
Wiltshire Leakage detection techniques adopted
Sounding (using listening stick, electronic
listen stick, electronic ground microphone) leak
noise correlation acoustic logging
step-testing. Start date
September 1996 Completion date
on-going Approx. fee value 375,000
pa Principal achievements Assisted client in
reducing their total losses to ELL. Efficiently
maintained total leakage at ELL. Maintenance,
optimisation extension of water pressure
management. Contract description RPS WS
assist the client by undertaking leakage
detection and pressure management work in the
counties of Somerset, Dorset, Avon and
Wiltshire. RPS WS staff are directed by the
clients management team to work in partnership
with in-house staff to meet company leakage
targets. The system knowledge gained by RPS WS
locally based staff over the period of the
contract has been a key factor in developing and
maintaining efficient working procedures.