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Asset Management: What It Means For Water Distribution
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Transcript of Asset Management: What It Means For Water Distribution
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Asset Asset Management:Management: What What
It Means For Water It Means For Water DistributionDistribution
Operability & CriticalityDecember 09, 2008
Paul SchumiWachs Utility Services
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Asset ManagementAsset Management
Start by answering five key questionsStart by answering five key questions
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Five Key QuestionsFive Key Questions1. What is the current state of my assets?
What do I own? Where is it? What condition is it in? What is its remaining useful life? What is its remaining economic value?
2. What is my required level of service (LOS)? What is the demand for my services by my stakeholders? What do regulators require? What is my actual performance?
3. Which assets are critical to sustained performance? How does it fail? How can it fail? What is the likelihood of failure? What does it cost to repair/refurbish/replace? What are the consequences of failure?
4. What are my best O&M and CIP investment strategies? What alternative management options exist? Which are most cost effective for my organization?
5. What is my best long-term funding strategy?
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Asset ManagementAsset Management
InventoryAssets
AssessCondition
DetermineResidual
Life
DetermineRRR $
& Timing
Set TargetLOS
AssignBRE Rating(Criticality)
DetermineAppropriateMaintenance
DetermineAppropriate
CIP
FundYour Strategy Build the AMP
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Asset ManagementAsset Management
InventoryAssets
AssessCondition
DetermineResidual
Life
DetermineRRR $
& Timing
Set TargetLOS
AssignBRE Rating(Criticality)
DetermineAppropriateMaintenance
DetermineAppropriate
CIP
FundYour Strategy Build the AMP
What is the current state of my assets?
What is the required level of
service
Which assets are critical to
sustain performance
What are the best O&M and CIP strategies
What is the best funding strategy
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Asset ManagementAsset Management
InventoryAssets
AssessCondition
DetermineResidual
Life
DetermineRRR $
& Timing
Set TargetLOS
AssignBRE Rating(Criticality)
DetermineAppropriateMaintenance
DetermineAppropriate
CIP
FundYour Strategy Build the AMP
What is the current state of my assets?
What is the required level of
service
Which assets are critical to
sustain performance
What are the best O&M and CIP strategies
What is the best funding strategy
InventoryAssets
AssessCondition
AssignBRE Rating(Criticality)
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WACHS Utility Services 2008
Status QuoStatus Quo
What is the Status Quo?• Operability
• System Information Gaps• Asset Inventory• Asset Locations• Accuracy of Asset Info
• Continued Status Quo?
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WACHS Utility Services 2008
Operability: Status-QuoOperability: Status-Quo
• 40% of all water valves are inoperable• 10% of all hydrants are inoperable; including
inadequate flow• 10% of all valves are paved over• 9% of all distribution valves are found in the
wrong position: shut & open• Transmission valves found shut
Nationwide
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Operability: Status-QuoOperability: Status-Quo
3%
55%42%
Replace Repair Good
Wilmington
Oklahoma City
Charlotte
2%
60%
38%
Replace Repair Good
Baltimore
2%
62%
36%
Replace Repair Good
1%
58%
41%
Replace Repair Good
Henrico County
3%
52% 45%
Replace Repair Good
Columbus
6%
47%47%
Replace Repair Good
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WACHS Utility Services 2008
Information: Status-QuoInformation: Status-Quo
• City of Baltimore, MD• Valve and Hydrant Assessment and
Rehabilitation Program• How Many Assets (valves)?
• 160,000 vs. 68,000• Asset Inventory Executed - Reveals the
True Quantity
Asset Inventory
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WACHS Utility Services 2008
Information: Status-QuoInformation: Status-Quo
• City of Melbourne, FL (2 Programs)
• Unidirectional Flushing Program
• Valve & Hydrant Assessment Program
• Where Are Your Assets?
• 23% of valves cannot be located
Asset Locations
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WACHS Utility Services 2008
Information: Status-QuoInformation: Status-Quo
• City of Houston, TX
• Large & Critical Valve Program
• How Accurate Is Your Mapping and Hydraulic Model?
• Model indicates a 16” main, we determined it was a 10” main
Information Accuracy
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WACHS Utility Services 2008
Information: Status-QuoInformation: Status-Quo
• City of Dallas, TX
• RE-Inventory EVERY Valve & Hydrant
• Determined that 70% of their Asset information was inaccurate• Surveyor GPS’ing Water Lids
• No Idea what was Underground
• No information on Operability
More Accuracy
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WACHS Utility Services 2008
Status-QuoStatus-Quo
•Is not SUSTAINABLE
•INCREASES the already high RISKS and COSTS in our industry
•Keeps a utility in reactive mode, chasing emergencies, trying to keep up
Continued Status Quo
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WACHS Utility Services 2008
Risks and CostsRisks and Costs
What are the RISKS and COSTS
of maintaining the status quo?
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WACHS Utility Services 2008
RisksRisks
Low Operability =
Loss of System Control
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WACHS Utility Services 2008
Initially Inoperable – 61%Initially Inoperable – 61%
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WACHS Utility Services 2008
Currently Inoperable – 16%Currently Inoperable – 16%
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Asset Criticality: ValvesAsset Criticality: Valves
The Coming WaveThe Coming Wave
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DefinitionsDefinitionsFunction
STOP water flow when needed
Criticality
IMPORTANCE that a valve perform its function
Valve Criticality
IMPORTANCE that a valve STOP water flow when needed and ALLOW water flow when not
and ALLOW water flow when not
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IndustryIndustry
STOP water flow when needed and ALLOW water flow when not
Industry view of valve criticality – “the wave”
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IndustryIndustry
1900 20252000197519501925
$
Investment
Post War
Installatio
n Wave
Population Growth
Insta
llation W
ave
Continuing
Installatio
n
Renew/Replace
Wave
Valve Criticality
Wave
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IndustryIndustry
Valve criticality
“Today” much more than “Yesterday”
We NEED valves to execute the renewal/replacement wave (unlike previous waves)
Valves are “Control Points”
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WACHS Utility Services 2008
The Moving PartsThe Moving Parts
Valves
Meters
Lea
k D
etec
tio
nH
ydran
ts
System
Rehabilitation
Water Audit
Leak Survey
Leak Pinpoint
Document
Inspect
Exercise
Repair
Document
Test
Repair
Replace
Document
Inspect
Flush
Flow test
Paint
Repair
Document
GIS Map
Evaluate
Create
Analyze
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WACHS Utility Services 2008
SolutionsSolutions
Moving parts control the Moving parts control the systemsystem
Control the moving parts Control the moving parts and you control the systemand you control the system
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CustomerCustomer
STOP water flow when needed and ALLOW water flow when not – both functions
Customer view of valve criticality – customer consequence of a valve not performing its function
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Customer ImpactsCustomer Impacts
Numbers
Dollars
“Factors”
•Number of customers•Type of customers•Loss of life•Physical damage•Restoration $•Transportation disruption•Business disruption•Restitution $•Contractor delay costs•Customer goodwill•Political disruption
Weighting
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Customer ImpactsCustomer Impacts
Valve Criticality =
Disruption times Probability
You set the risk tolerance level
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Critical ValvesCritical Valves• Ask…• Critical “places”• Critical “transportation”• Critical “sources”• Critical “transmission”• If, then: sideline valves• Single line feed valves• Pressure boundary valves• Pressure reducing valves• Rehabilitation area valves• SVMM, VCM, Optimatix… data driven
80 – 20 Rule
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WACHS Utility Services 2008
FocusFocus
The Distribution System is gaining focus across the
industry.
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WACHS Utility Services 2008
Asset ManagementAsset Management
• City of Chicago, IL• 100 year – 1% Replacement Program
per year
• Asset Lifespan Gaps not Equal
• Preventative Maintenance CAN extend the life of the asset
Many Approaches
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WACHS Utility Services 2008
Asset ManagementAsset Management• City of Chicago, IL
• Asset Lifespan Gaps
0102030405060708090
100
Valves Pipe
Lifespan Valve
Lifespan Pipe
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WACHS Utility Services 2008
Asset ManagementAsset Management
• City of Kansas City, MO• Criticality Based Lifecycle Approach
• Creates a Roadmap for Asset Management going Forward
• Addresses “Critical” assets with greater frequency
Many Approaches 2
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WACHS Utility Services 2008
Asset ManagementAsset Management
• City of Charlotte, NC• Building GIS From The Ground Up
• Asset Information “captured” can provide information from the field back into planning (including Asset Management / CIP)
Many Approaches 3
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WACHS Utility Services 2008
CIP PlanningCIP PlanningDollars Spent Wisely
• (12) 20” transmission valves found shut – twin 54” mains deemed unnecessary
• Pump station at capacity – Closed 7 pressure boundary valves found in the wrong position – MGD cut in half
• Rehabilitation of a large externally geared pump station valve – plan to replace required draining an entire reservoir
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WACHS Utility Services 2008
Currently Inoperable – 16%Currently Inoperable – 16%
5 of 6 valves
inoperable
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WACHS Utility Services 2008
SolutionsSolutions
Getting started
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Where to Start: Strategies
• Total system assessment
program approach
• Large valves core of the system
• Representative survey state of the system
• Specific areas section of the system
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WACHS Utility Services 2008
Where to StartWhere to Start
• Pilot program• System program
*Start with System Control Points (Valves) and Information
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WACHS Utility Services 2008
Paul SchumiDirector of Sales & Marketing
[email protected]: (630) 485-9870