Esri water_wastewater SIG Charleston, SC 10-16-2014 - Wachs Water v3
1. Best Practices in Asset Management:
The Power of Information in the Palm of your Hand
Esri Water/Wastewater SIG
Charleston, SouthCarolina
October16,2014
2. Reducing the Consequences of Failure
America’s Infrastructure is Failing
• One Million Miles of Water
Mains are in place – U.S.
• Some pipes date back to
the Civil War era
• 240K Main Breaks per Year
• ~700/day
• Break Clock
3. Reducing the Consequences of Failure
America’s Infrastructure is Failing
• Average – 1 Break / 4 miles
• Currently Replacing Pipe -
½% per Year (200 yr plan)
• The need will double from
roughly $13 billion a year
today to almost $30 billion
(in 2010 dollars) annually
by the 2040s
• 7 Billion Gallons Lost Each
Day (ASCE)
4.
5.
6.
7.
8. Reducing the Consequences of Failure
Facts and Figures
• Approximately 175,000 Gallons Per Minute Flowing
• More than 4 feet deep in some residential areas.
Areas submerged
in up to 4 feet of
water .
Hundreds of emergency services
employees deployed.
6,000 homes impacted
Flooding / No Water
9. Mid-Atlantic
December 23, 2008
• 66” Main Break
• 150K gal / minute
• Three Rescued by
Helicopter
• Cause: Incorrect
Installation
10. Reducing the Consequences of Failure
Data from Kansas City, MO
Avg Cost to Repair a Major Water Main Break
– $6,000
– Pipe Only
Location Pipe Street Restoration
Ward Parkway $3,000 $90,000
Holmes Rd $3,600 $130,000
Wornall Rd $322 $245,000
KCTV5 Investigates: Water Main Woe$
Posted: Feb 09, 2012 6:39 PM CST Updated: Aug 31, 2012 12:24 PM CDT
12. Reducing the Consequences of Failure
Risk
Likelihood of
Failure
Consequence of
Failure
• Age
• Material
• Service history
• Economic
• Environmental
• Social
Asset Management Controls Risks
14. Reducing the Consequences of Failure
hydrant
valve
service
Asset usability consequences:
• Duration: damaging flow and
actions to control the situation – 3
valves vs. 7 valves
• Footprint: more customers
out of service – 3 services vs. 17
services
break
How are the Consequences Managed?
15. Reducing the Consequences of Failure
Labor & Equipment
Collateral Damage
Treated Water
Sum of Costs
Damage to private infrastructure
Traffic disruptions
Customer outages
Public health
Damage to public infrastructure
Utility Labor & Equipment
Contractor Labor & Equipment
Delay charges
Electricity
Chemicals
Raw water
Labor & Equipment
Collateral Damage
Treated Water
Sum of Costs
Damage to private infrastructure
Traffic disruptions
Customer outages
Public health
Damage to public infrastructure
Utility Labor & Equipment
Contractor Labor & Equipment
Delay charges
Electricity
Chemicals
Raw water
Minimizing the duration and footprint of
failures has a direct impact on minimizing
consequences and costs
Opportunity to Minimize Costs
17. Reducing the Consequences of Failure
Shorten the time
(duration)
Make the impacted area smaller
(footprint)
How to manage the Consequence of Failure
19. Reducing the Consequences of Failure
Is there meaningful content?
What Constitutes Information Usability?
Is it accurate?
Is it available?
Control: Information Usability
20. Reducing the Consequences of Failure
Information Usability: Content
• What assets are represented in
the information system?
– All pipes, valves, meters, etc?
• What type of information is
documented for assets in the
system(s)?
– What’s the condition?
– What are the as-is operating
characteristics?
• Are the assets organized in a
logical network that can be called
upon to perform analyses?
21. Reducing the Consequences of Failure
Example of Content Improvement
System Valve Feature class
GIS Attribute Example Value
Date Modified 5/12/2014
Last User WachsWater
Condition Date 5/10/2014
Condition Good
Clockwise To Close Indicator Left Turn
Turns To Open 27
Easting 3132793.383
Northing 13833419.48
GPS Positioned Yes
Operating Nut Depth 1
Torque Required 50
Current Position OPEN
Gate Orientation VERTICAL
Valve Use IN LINE
Structure BOX
Surface Cover ASPHALT
Lid Size ROADWAY
GPS Receiver GEOEXPLORER 6000 SERIES
GPS Date 5/10/2014
Notes None
Reason Inoperable NA
• 21 attributes being
updated weekly
(via replication)
• Over 175,000 data
elements updated
23. Reducing the Consequences of Failure
Is there meaningful content?
What Constitutes Information Usability?
Is it accurate?
Is it available?
Control: Information Usability
24. Reducing the Consequences of Failure
Green Lines: Unadjusted Geometry
Red Lines: Adjusted Geometry
Tee 30’
Valve 30’
Hydrant 13’
Valve 27’
Information Usability: Accuracy
25. ∆ = 15’
Average system valve search
area reduced by 99.6%:
7002 ft → 32 ft
Information Usability: Accuracy
26. Session 1 - MFS
Distance from GPS to Existing GIS
Frequency
43% of valves: ≥ 13ft – 5002 ft
25% of valves: ≥ 18ft – 1,0002 ft
3% of valves
≥ 40ft – 5,0002 ft
Information Usability: Accuracy
27. Reducing the Consequences of Failure
• Valve is connected to 3 pipe features
• Probably a tapping valve, needs to be
evaluated
Information Usability: Network Topology
28. Reducing the Consequences of Failure
Research is needed to determine
if this is as designed or a GIS error
Information Usability: Network Topology
29. Reducing the Consequences of Failure
Is there meaningful content?
What Constitutes Information Usability?
Is it accurate?
Is it available?
Control: Information Usability
31. Reducing the Consequences of Failure
Can I find it?
What Constitutes Asset Usability?
Can I access it?
Can I fully close it?
Control: Asset Usability
33. 2 of 5 valves on
average are not
usable
60% is National
Average Usability
The Asset Itself
34. Reducing the Consequences of FailureReducing the Consequences of Failure1 in 4 valve structures
Asset Usability Example
35. Reducing the Consequences of Failure
Duration: 7
valves
Footprint: 19 hydrants
Duration: 9 plat
cards
The Value of Control
36. Reducing the Consequences of Failure
Duration: 2
Valves
Footprint: 19 hydrantsDuration: 1 GIS
The Value of Control
37. Reducing the Consequences of Failure
Duration: 1 Valve Footprint: 4 hydrantsDuration: 1 GIS
High impact, low
cost repair, high
priority
The Value of Control
41. Reducing the Consequences of Failure
Water RF (study 4369 – UIM Article 4/15/14)
“…having an asset management program in place
can play a key role in minimizing damage due to
infrastructure failure, particularly if the program
had a special focus on the valve management
program.
Knowing the exact location of each valve, whether
the position of the valve was open or closed and
having performed regular operability maintenance
of the valves, made it more likely that the utility’s
crew could quickly isolate the area of the break, and
thereby, minimize the amount of water discharged
and damage to surrounding properties.”
Video Link
42. Reducing the Consequences of Failure
Wachs Water Services
• Focuses on Reducing the Consequences of
Failure
• Asset Management / Condition Assessment
Programs
• Information is Key
• Information that’s content rich, accurate and
available to support decision making during
failure events
43. Session 1 - MFS
Best Practices in Asset Management:
The Power of Information in the Palm of your Hand
Ryan McKeon, VP Of Strategy & Technology
(443) 386 7531
rmckeon@wachsws.com
Editor's Notes
Here are just a few pictures to give a face to some of the things we spoke about….
Well we talked about increased duration (and therefore damage) related to main breaks… this can translate into damage to roads and other public infrastructure as we see here, or damage to private property as we see here
We talked about unintended outages and degraded water quality related to closed valves… this hydrant was opened in conjunction with the opening of a valve that had been closed for an unknown amount of time…. As you can see, the resultant dead-ends accumulated a significant amount of sediment
What we’re looking at here is a list compiled from a 2007 AWWA paper on the cost main breaks… and while the discussion of control is broader than main breaks, this is a good starting point when trying to understand the costs associated with a lack of control
We aren't going to go into each of these but as you can see, the list includes things you might expect
Like labor – for both internal and external resources
Collateral damage to parallel utilities
Lost revenue – the meters aren't spinning when there’s no water
And many, many others…
Probabilities of failure vs. consequences of failure….. briefly discuss our belief that the industry is largely missing an opportunity by singularly focusing on managing the probabilities of failure by replacing pipe…… too expensive and takes too long to have the most effective impact on managing the Triple Bottom Line (TBL) elements
Here’s an animation that illustrates the effect of unusable valves
If there was a main break, at this red “starburst” icon, the plan would be to close these three valves,
Let’s get to it….
Valve 1 closed
Valve closed
Everything is going well until I get to the last valve in the plan…. and I can’t find it… maybe its covered over in asphalt, but I don’t have time to pull out my metal detector and start searching so I move on….
Valve 4
Valve 5
Everything is going according to my “revised plan” until I get to what now is the 6th valve….. The roadway box is shifted and has moved off the center of the operating nut just enough that I can’t securely fit the valve key on securely…. I certainly don’t have time to dig down and realign the box and so once again, I back up….
And finally, by closing the seventh valve, I’m able to control the situation and turn the water off so the repair work can begin….
But by having to backup from what I thought was going to be 3 valves to 7, it took me twice as long
And now there are close to 20 customers out of service when there only should have been 3
And is this scenario, 5 of 7 control points were useable, which translates to just about 70% \– a good 10 points higher than the average
And so the opportunity is to increase control and in turn avoid these failures where we can and to minimize the footprint and duration of the failures that we can’t avoid – which will have a direct impact on reducing risk and minimizing costs
http://www.wachsws.com/tools/roi/
But there’s another chapter when we’re talking about achieving sustainable control…. Information Usability
These are the questions you need to ask yourself when evaluating how usable your information is an what the opportunities are for improvement
Content
It’s important to have relevant and meaningful information at the right time in one place….
Business systems should be capable of seamlessly answering pressing questions like: <click>
When was it evaluated last? <click>
Does it work? <click>
Is it open? <click> -
How many turns does it require to fully close it? <click>
How much torque does it require to close and how deep is it --- what tools will I need? <click>
These are typical operational questions but if valve is being tracked as closed in GIS or in the asset management system, the hydraulic model should have access to the information as well
But there’s another chapter when we’re talking about achieving sustainable control…. Information Usability
These are the questions you need to ask yourself when evaluating how usable your information is an what the opportunities are for improvement
But there’s another chapter when we’re talking about achieving sustainable control…. Information Usability
These are the questions you need to ask yourself when evaluating how usable your information is an what the opportunities are for improvement
And with the advent of simple-to-use web mapping API’s, GIS and non-GIS users alike are able to utilize advanced toolsets to make more informed decisions..
What we’re looking at here is an isolation simulation for a main break response…..
I can log in though a standard web browser, navigate to the area of interest and click on a pipe that needs to be shutdown
The GIS knows which valves work and which ones don’t and takes that into account when developing the response plan
And while isolation trace tools aren't new, their availability outside of heavy desktop software is becoming more and more common
If the GIS has accurate and meaningful information and it’s in an interoperable format, publishing tools like we’re seeing here can be implemented very cost-effectively
This information and analysis capability simply makes the system more controllable
What makes a valve useable?
If there answer to any of these questions is “no” it isn't useable
On average, where there isn't a proactive control point management strategy in place, about 40% of valves are unusable….
When people think about valves that don’t work, they typically jump to the valves that are corroded and broken – valves that have endured the mechanical effects of aging
And while these mechanical challenges exist, statistically speaking, they are dwarfed by accessibility problems
If someone needed to access this valve, they would most likely need a jackhammer to punch through this concrete curb…. and if they didn’t have the means to break through the curb, this just isn’t useable…
and in many instances valves simply end up “lost”….
They’re on the maps, they just can’t be readily found in the field – they may be poorly mapped, they may have been removed or they may have never been installed -- this is typically one of the biggest usability challenges we see
And here’s a few statistics we put together for an AWWA poster a couple of years ago that summarized the findings from hundreds of thousands of valve inspections from across the country – the good news is th`at improvements can be achieved (which in turn reduces risk) very cost effectively
Initial valve usability was found to be <30% -- less than 3 out of 10 valves could be used as they were to stop the flow of water
In order for a physical valve asset to be useable (be able to turn off water flow) the valve must be:
Locatable : you have to be able to find the right valve in a reasonable period of time
Accessible: once the right valve is found you must be able to access the operating nut on that specific valve
Operable: once the right valve is found and the operating nut is accessible you must be able to close and open the valve
In Atlanta , and like many other water systems throughout North America, the biggest challenge was accessibility….
About ~24% of all the valve structures (almost 1 in 4) were found covered over (mostly paved over) and needed to be uncovered and raised to grade
