28 novembre 2017, G.O.R.I. S.p.A.

1. independent | trusted | innovative
Condition Assessment
e Asset Management
Roberto Zocchi
European Business Director

2. maintenance holiday is an expensive short term thinking!
ARE WE PROPERLY MAINTAINIG WATER SERVICES ASSETS
FOR THE FUTURE GENERATIONS?
Water Inflow
Distribution Network
Mains
Aqueducts
Storage Tanks Capacity
Piezometers
……
479,8 Mm3/yr
5.482 km
878 km
208 km
480.388 m3
n. 6
…
ASSET RENEWAL (extimated value)
about 15 Billion Euros
PLANNED GLOBAL INVESTMENT (5 Yrs):
100/150 M€/Year
Rising Standards (ww new infrastructures):
50/100 M€/Year
Maintenance (Ord/Extra; w/ww):
45/50 M€/Year
(0,33%???.....300 Years!)
NOT ENOUGTH!! WE HAVE TO DO MORE!!
WE ARE LEAVING PROBLEMS TO NEXT GENERATIONS!

3. maintenance holiday is an expensive short term thinking!
INFRASTRUCTURE RENEWAL VALUE: 500 – 5.000€ pro-capita
SERVICEABILITY INVESTMENTS: 5 – 60 € pro-capita/yr
How many years?
WE HAVE TO INVEST MORE AND BETTER
(A.I.M – Asset Integrity Management)!!
DILEMMA (reference 3Ts)….
An artificially low level of water prices would not only lead
to the depletion of water resources, but would fail to secure
investments in infrastructure maintenance, leaving a heavy
burden of investment for future generations
EurEau Statement on «Rigth2water» ICE - 2014
DO WE PAY ON USE
BASIS (TARIFF) DO WE PAY ON INCOME
BASIS (TAXES)

4. Asset Management services
© WRc plc 2017
ASSET
MANAGEMENT
Technology
evaluation
Asset
resilience
Customer
services
Pollution
and
flooding
Leakage
Innovation
strategy

5. Deterioration
modelling
Condition
assessment
Predictive
analytics
Maintenance
optimisation
Whole life
cost
modelling
Meter
uncertainty
analysis
Flow
balances
Investment
prioritisation
?
Service
failure risk
profiling
Social impact
analysis
Smart
Networks
Critical asset
identification
and location
Wastewater
treatment &
disposal
solutions
Technology
evaluation
Innovation
strategy
CIP lining
assessment
Large scale
facilities
WRc
Approved
Asset
Standards
Failure
analysis
Laboratory
facilities
Operational
services
Expert
Witness
© WRc plc 2017
Asset Resilience Toolkit

6. Deterioration
modelling
Whole life
cost
modelling
Meter
uncertainty
analysis
Flow
balances
Investment
prioritisation
?
Social impact
analysis
Smart
Networks
Wastewater
treatment &
disposal
solutions
CIP lining
assessment
Large scale
facilities
Failure
analysis
Laboratory
facilities
© WRc plc 2017
Pollution and Flooding Toolkit
CIPP QC
Large sewer
void
detection
PVC pipe
deterioration
Access
chambers
CESWI
Blockage
formation
Flushables
Septicity
control
Pitch fibreWRc
Approved
CIPP in rising
mains

7. Deterioration
modelling
Condition
assessment
Predictive
analytics
Maintenance
optimisation
Estimating
unmeasured
customer
demand
Meter
uncertainty
analysis
Flow
balances
Investment
prioritisation
?
Service
failure risk
profiling
Social impact
analysis
Smart
Networks
Critical asset
identification
and location
Leakage
economics
Technology
evaluation
Innovation
strategy
Trenchless
technologies
Large scale
facilities
WRc
Approved
Predicting
the influence
of weather
Failure
analysis
Social data
analytics
Survey
planning
Workmanship
improvement
© WRc plc 2017
Leakage Strategy Toolkit

8. Risk-based investment planning using asset fault
data and consequence models at WTW
© WRc plc 2017

9. Predictive failure modelling
 Failure history of similar pipes: GLM
𝐴𝑛𝑛𝑢𝑎𝑙 𝑓𝑎𝑖𝑙𝑢𝑟𝑒 𝑟𝑎𝑡𝑒~ 𝑚𝑎𝑡𝑒𝑟𝑖𝑎𝑙, 𝑙𝑒𝑛𝑔𝑡ℎ, 𝑑𝑖𝑎𝑚𝑒𝑡𝑒𝑟, 𝑗𝑜𝑖𝑛𝑡 𝑡𝑦𝑝𝑒, 𝑠𝑜𝑖𝑙 𝑡𝑦𝑝𝑒, 𝑎𝑔𝑒
 Failure history of nearby pipes: kriging
 Failure history of a particular pipe: Bayesian analysis
0.00
0.02
0.04
0.06
0.08
0.10
0.12
1900 1920 1940 1960 1980 2000
Failures/km/annum
Year installed
CI DI
SI ST
© WRc plc 2017

10. Assess and Address™ components
Analyse
Inspect
TargetInvestigate
Advise
Investment
prioritisation
Feasibility
assessment
Implementation
Locate

11. Water network structure
© WRc plc 2017
M1 Abstraction: Resource management
M2 Strategic: Distribution input
M3 Bulk transfers: Revenue
M4 Network: Leakage, network management
M5 DMA: Leakage, pressure management
M6 Non-household revenue: Revenue
M7 Household revenue: Revenue
M8/M9 Consumption monitors: per capita
consumption (pcc), leakage,
M10 Temporary: Meter checking, surveys

12. The upstream network
© WRc plc 2017
M1 Abstraction: Resource management
M2 Strategic: Distribution input
M3 Bulk transfers: Revenue
M4 Network: Leakage, network management
M5 DMA: Leakage, pressure management
M6 Non-household revenue: Revenue
M7 Household revenue: Revenue
M8/M9 Consumption monitors: per capita
consumption (pcc), leakage,
M10 Temporary: Meter checking, surveys

13. Making intervention decisions
© WRc plc 2017
Two very large meters
(300mm or more) in this
area – need to verify to
improve confidence in the
result.
Understanding
uncertainty can give
greater confidence
in conclusions as
well

14. Whole life cost modelling
© WRc plc 2017
TR61 is a collection of whole life cost and carbon estimating models for the
construction, refurbishment / renovation and operation of water and sewage treatment
and infrastructure assets provided in a single software program.
WRc has also produced a range of complementary investment planning and
intervention analysis tools for specific purposes, e.g. pipeline rehabilitation, pumps

15. Smart networks
© WRc plc 2017
Network Resilience
Control and Optimisation
Data Analysis for Intelligent
Monitoring
Data Management and Visibility
Sensing and Data Gathering
Physical Layer
SmartNetworks
‘Ready Water’
 Proactive Management of Water
Distribution Systems using Real
Time Model-Based Decision
Support Tools

16. Enhanced statistical modelling
© WRc plc 2017
Traditional statistical methods may not
reveal trends appropriate for
deterioration modelling and
subsequent use of results
By applying engineering principles it is
possible to separate the underlying
material-based deterioration (in red,
right).

17. Leakage Economics
© WRc plc 2017
Supply pipes
(downstream)
Distribution
mains
Trunk mains
(upstream)
Complete economic assessment for leakage strategy

18. Predicting the influence of weather
© WRc plc 2017
Using classic approaches to
modelling
Using new approaches to
modelling with equal
analytical rigour
• Influence of weather
• Influence of level of ALC
• Aids planning resources to
deliver on leakage targets
• Short term and long term
planning

19. WE HAVE TO INVEST MORE...
AND BETTER!!!
© WRc plc 2017

21. maintenance holiday is an expensive short term thinking!
ASSET NEED PROPER MAINTENANCE TO
MAINTAIN THEIR SERVICEABILITY
‘50 – ’70 POPULATION GROWTH – ECONOMIC
BOOM
‘70 – ’90 ENVIRONMENTAL
AWARNESS (WW)
WE (often) BUILD WATER ASSETS
RISING THE (public) DEBT OF OUR
COUNTRIES (liabilities to next generations)
‘90 – Today RISING STANDARDS
serviceability