asset management: what it means for water distribution

Asset Asset Management:Management: What What

It Means For Water It Means For Water DistributionDistribution

Operability & CriticalityDecember 09, 2008

Paul SchumiWachs Utility Services

Asset ManagementAsset Management

Start by answering five key questionsStart by answering five key questions

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?


InventoryAssets

AssessCondition

DetermineResidual

Life

DetermineRRR $

& Timing

Set TargetLOS

AssignBRE Rating(Criticality)

DetermineAppropriateMaintenance

DetermineAppropriate

CIP

FundYour Strategy Build the AMP


InventoryAssets

AssessCondition

DetermineResidual

Life

DetermineRRR $

& Timing

Set TargetLOS




CIP


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

DetermineResidual

Life

DetermineRRR $

& Timing

Set TargetLOS




CIP


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


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?


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

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


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



• 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



• 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



• 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


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


Risks and CostsRisks and Costs

What are the RISKS and COSTS

of maintaining the status quo?


RisksRisks

Low Operability =

Loss of System Control


Initially Inoperable – 61%Initially Inoperable – 61%


Currently Inoperable – 16%Currently Inoperable – 16%

Asset Criticality: ValvesAsset Criticality: Valves

The Coming WaveThe Coming Wave

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

IndustryIndustry

STOP water flow when needed and ALLOW water flow when not

Industry view of valve criticality – “the wave”

IndustryIndustry

1900 20252000197519501925

$

Investment

Post War

Installatio

n Wave

Population Growth

Insta

llation W

ave

Continuing

Installatio

n

Renew/Replace

Wave

Valve Criticality

Wave

IndustryIndustry

Valve criticality

“Today” much more than “Yesterday”

We NEED valves to execute the renewal/replacement wave (unlike previous waves)

Valves are “Control Points”


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


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

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

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

Customer ImpactsCustomer Impacts

Valve Criticality =

Disruption times Probability

You set the risk tolerance level

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


FocusFocus

The Distribution System is gaining focus across the

industry.



• 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


Asset ManagementAsset Management• City of Chicago, IL

• Asset Lifespan Gaps

0102030405060708090

100

Valves Pipe

Lifespan Valve

Lifespan Pipe



• 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



• 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


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


Currently Inoperable – 16%Currently Inoperable – 16%

5 of 6 valves

inoperable


SolutionsSolutions

Getting started

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


Where to StartWhere to Start

• Pilot program• System program

*Start with System Control Points (Valves) and Information


Paul SchumiDirector of Sales & Marketing

[email protected]: (630) 485-9870

asset management: what it means for water distribution

Documents

assets valves

best om

water valves

status quowhat

opentransmission valves

distribution valves

current state

alternative management