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Asset Risk Assessment Workshops
Asset Management Goals Workshop Objectives Overview of Asset Management Review Likelihood and Consequence Criteria Review Wastewater Asset Hierarchy
S W t t A t
Score Wastewater Assets
Draft Asset Risk Assessment Workshops Asset Management Goals - - PowerPoint PPT Presentation
Draft Asset Risk Assessment Workshops Asset Management Goals - - PowerPoint PPT Presentation
Draft Asset Risk Assessment Workshops Asset Management Goals Workshop Objectives Overview of Asset Management Draft Review Likelihood and Consequence Criteria Review Wastewater Asset Hierarchy Score Wastewater Assets S W
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Provide baseline information to the Water &
Wastewater Master Plan
The results of the risk assessment will be used to help
identify and prioritize potential projects with a focus identify and prioritize potential projects with a focus
- n addressing the Stipulated Order
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Perform the Asset Risk
W t W t t S t
Assessment for Saipan Wastewater Systems
Was astewa ewater er Sys ystems ems
Develop consequence and
likelihood of failure matrices matrices
Perform the top-down
risk assessment
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Effective Asset Mana Effective Asset Management is: ement is: g An integrated set of processes to minimize the life-cycle costs of owning, operating and y g, p g maintaining assets, at an acceptable level of risk, while continuously delivering established levels y g
- f service.
Implementing Asset Management – A Practical Guide M i P bli I f t t A t t A Practical Guide AMWA, NACWA, WEF 2007
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Managing Public Infrastructure Assets to Minimize Costs and Maximize Performance AMSA, AMWA, AWWA, WEF 2002
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1 Minimize the life cycle costs of assets
- 1. Minimize the life-cycle costs of assets
- 2. Continuously deliver established levels of service
- 3. At an acceptable level of risk
RISK
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Th b i f i iti i it l
The basis for prioritizing capital
investments for R&R
The basis for optimizing O&M The basis for optimizing O&M The basis for investing in condition
assessments
A uniform and rigorous methodology that
results in defensible decisions
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Quantify the consequence associated with
asset failure asset failure
Quantify the likelihood of an asset failure Use equation to quantify relative risks of assets
Risk = ƒ (consequence x
likelihood)
Use equation to quantify relative risks of assets
How severe are the How likely is it for consequences of asset failure?
- e y s t o
the asset to fail?
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Refine projections with additional data
Top-Down
Facility Level Facility Level Eleme Element Level t Level
3 Populat Populate asset asset
- 1. Use
Use known data and known data and exi existi ting knowledg ng knowledge 2.
- 2. Asse
Assess consequence ss consequence & likelihood & likelihood of
- f
failu ilure re to determ rmine ine
- 3. Populat
Populate asset asset register register 2.
- 2. Perform condition
Perform condition and performanc and performance assessments assessments failu ilure re to to determ rmine ine risk risk
- 3. Ident
Identify gaps gaps and and priority needs priority needs
Bottom-Up
1.
- 1. Co
Collect d llect detailed iled asset asset informat information Refi Refine capital ne capital planning and planning and O&M activi O&M activiti ties Refi Refine capital ne capital planning and planning and O&M activi O&M activiti ties
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How the system, as a whole, is
intended to perform in a Levels of Service p measurable way. Usually consists
- f two parts:
bl f
Customers & Other Stakeholders
measurable performance
specification,
minimum condition grade
Organizational Goals Organizational Mission & Vision
The Commonwealth Utilities Corporation is dedicated to providing reliable, environmentally sensitive and efficient Power, Water, and Wastewater Treatment services for the people of the CNMI at the lowest reasonable cost h l d f h bl l d h while providing safety to the public, employees, and the community.
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Risk = ƒ (consequence
likelihood)
Risk = ƒ (consequence x
likelihood)
How severe are the consequences of asset failure? How likely is it for the asset to fail?
- Financial impact
- Regulatory compliance
Categories
- Public confidence/image
- Service delivery
- Health and Safety
g
- f Levels
- f Service
ea a d Sa e y
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W ATER
Consequence by Level of Service Category LOS Category Wt. Negligible = 1 Low = 4 Moderate = 7 Severe = 10
Wt
Health & Safety of public and employees 30% No injuries or adverse health effects, No lost-time injuries or medical attention required. Lost-time injury, medical attention required, or water- borne illness experienced. Loss of life or widespread water- borne illness experienced. Abl t b b b d i Financial impact 15% Able to be absorbed in O&M budget’s applicable cost center. Able to be absorbed in CIP budget, or requires budget transfers between O & M cost centers Requires Board approval May require new borrowing or impact rates No social or economic impact on the community. No reactive media Minor disruption (e.g., traffic dust noise) No Long term impact Area wide Public confidence 20% No reactive media
- coverage. (any media
coverage is a result of proactive announcements by PCU) No Service Interruption traffic, dust, noise). No adverse media coverage. Minor service interruption, service restored without public reaction. Substantial but short-term
- disruption. Adverse media
coverage due to public impact. Long-term impact. Area-wide
- disruption. Widespread adverse
media coverage. Public outcry of dissatisfaction with utility services. Technical violation Violation of secondary Environmental compliance 35% Primary and secondary drinking water standards
- met. No permit violations.
Technical violation. Possible notice of violation but enforcement action is unlikely. Violation of secondary
- standard. Probable
enforcement action but fines unlikely. Violation of primary MCL. Enforcement action with fines likely.
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Risk = ƒ (consequence x
likelihood)
Risk
ƒ (consequence x likelihood)
How severe are the
- Condition of asset
How severe are the consequences of asset failure? How likely is it for the asset to fail?
Condition of asset
- Performance of asset
- Effectiveness of O&M
protocols
- Maintenance history
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Likelihood by Category for W ater
Likelihood Category Wt Negligible = 1 Unlikely = 2 Possible = 4 Likely = 7 Very Likely = 10
Wt
Very good (Condition Grade 1). Less than 20 Good (Condition Grade 2). Between 21 and 40 years old Minor Fair (Condition Grade 3). Between 41 and 60 years
- ld Backlog corrective
Poor (Condition Grade 4). Between 61 and 80 years
- ld. Significant backlog
Very poor (Condition Grade 5). Between 81 and 100 years old. Requires complete Physical Condition (based on age) 50% years old. New or nearly new. Only normal maintenance required. years old. Minor
- defects. Minimal
corrective maintenance
- required. ~ 5% needs
maintenance.
- ld. Backlog corrective
maintenance is necessary likely requiring outside
- assistance. . ~ 10% to
20% needs maintenance. maintenance or partial rehabilitation required. Outside assistance
- needed. ~ 20% to 40%
needs maintenance. Requires complete rehabilitation or
- replacement. >50%
requires maintenance. Asset may be unserviceable. Performance (no.
- f wos)
40% Avg of between 0 and 1 wos per 300ft over rolling 5 year period. Avg of between 2 and 5 wos per 300 ft over rolling 5 year period. Avg of between 6 and 15 wos per 300 ft over rolling 5 year period. Avg of between 16 and 25 wos per 300 ft over rolling 5 year period. Avg of greater than 25 wos per 300 ft over rolling 5 year period. Soils 10% Low corrosion potential Low-moderate corrosion potential Moderate corrosion potential Moderate corrosion potential High corrosion potential
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- Develop hierarchy based on available information
Level 1 System Water System Level 2 Subsystem Treatment Plant Level 3 Component Intake structure Level 4 Subcomponent Screening Level 4 Subcomponent Screening Level 5 Element Screen 1 Level 5 Element Screen 2 Level 5 Element Screen 3 Level 3 Component Clarification Level 4 Subcomponent Clarifier 1 Level 5 Element Structure Level 5 Element Mechanical Level 3 Component Chemical system Level 4 Subcomponent Sodium hydroxide Level 5 Element Pumps Level 5 Element Day tank
- Initially, stay at Level 4 or 5 and above
- Group subcomponents as appropriate
Level 5 Element Day tank
- Group subcomponents as appropriate
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SLIDE 16 LOS Category Wt Negligible = 1 Low = 4 Moderate = 7 Severe = 10
Consequence by Level of Service Category
System Subsystem Component Subcomponent Element System Subsystem Component Subcomponent Element
LOS Category Wt. Negligible = 1 Low = 4 Moderate = 7 Severe = 10 Safety of public and employees 15% No injuries or adverse health effects. No lost-time injuries or medical attention required. Lost-time injury or medical attention required. Loss of life or widespread- utbreak of illnesses
Element Element Element Component Subcomponent Element Element Element Element Component Subcomponent Element
Public confidence and image 20% No social or economic impact on the community. No reactive media coverage (any media coverage is a result of proactive announcements by Utility). No complaints. Minor disruption (e.g., traffic, dust, noise). No adverse media coverage. Some complaints. Substantial but short-term- disruption. Adverse media
- disruption. Regional media
- new. Only normal
- Good. (Condition
- Fair. (Condition Grade 3).
- Poor. (Condition Grade 4).
- replacement. >50%
Element Component Subcomponent Element Element Element Component Subcomponent Element Element
Service Delivery 25% Pressure ≥40 psi at meters. No services affected (including no impact to fire protection). Pressure <40 psi but ≥30 psi at meters. Small Area- impacted. No impact to
- meters. Large Area Impacted.
- f taste and odor complaints.
- n fire protection. Loss of service to
- assistance. ~10 to 20%
- nly supply between 50% and
- demand. Well can only
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CONSEQUENCE LI KELI HOOD Safety of public and employees Financial impact on Utility Public confidence Regulatory compliance Service Delivery Consequence Score Consequence Rank Physical Condition Performance (i.e., capacity, utilization and functionality of asset) O&M Protocols (i.e., SOPs) Planned maintenance as a % of total maintenance Likelihood Score Likelihood Rank Risk Score Risk Rank ASSET S e F U P R c S C S C P P c a a O S P m % m L L Weight-> 0.15 0.15 0.20 0.25 0.25 0.45 0.30 0.05 0.20 MILLS 1 7 10 4 10 6.7 1 1 1 7 2 1.6 94 11.0 23 ELSWORTH 1 1 4 1 1 1.6 65 1 4 7 4 3.5 8 5.6 68 HEACOCK 1 7 7 1 10 5.4 4 1 1 7 2 2.1 88 11.1 22 CACTUS & NASON 4 1 4 1 7 3.6 28 1 1 7 4 2.6 37 9.3 37 R R NASON & DRACAEA 4 1 4 1 4 2.8 41 1 1 7 4 2.7 34 7.4 53 FREDERICK/ SUNNYMEAD 7 7 1 1 1 2.8 39 2 1 7 4 3.1 28 8.6 45 MORENO 2 4 7 7 1 7 5.1 7 2 1 7 4 3.1 27 15.5 5 PERRIS & FIR 4 7 7 4 4 5.1 7 1 4 7 4 3.4 18 17.0 4 HEMLOCK 7 4 4 1 7 4.5 14 1 1 7 4 2.5 59 11.0 24 ELDER 4 7 4 1 4 3.7 19 1 1 7 4 2.6 39 9.6 32 ELDER 7 4 1 4 3.7 19 1 1 7 4 2.6 39 9.6 32 MEDLEY 1 1 1 1 1 1.0 68 1 1 7 4 2.4 73 2.4 94 PIGEON PASS ROAD 4 1 1 1 1 1.5 66 1 1 7 4 2.5 65 3.6 84 VILLAGE ROAD 1 1 1 1 1 1.0 68 1 4 7 4 3.3 20 3.3 87 PERRIS / IRONWOOD 10 7 7 1 4 5.2 5 1 10 7 4 5.3 1 27.5 1 HIDDEN SPRINGS 1 1 1 1 1 1.0 68 1 4 7 4 3.4 16 3.4 86 STEEPLECHASE / IRONWOOD 4 7 4 1 4 3 7 19 1 1 7 4 2 5 54 9 2 39
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STEEPLECHASE / IRONWOOD 4 7 4 1 4 3.7 19 1 1 7 4 2.5 54 9.2 39 STEEPLECHASE / KALMIA 4 7 1 1 4 3.1 34 1 4 7 4 3.4 13 10.6 28 SUNNYMEAD PKWY 1 1 1 1 1 1.0 68 1 1 7 4 2.4 71 2.4 93 PERRIS & KALMIA BOOSTER 1 1 4 1 4 2.4 48 1 1 7 4 2.4 70 5.7 64 COVEY 1 1 1 1 4 1.8 58 1 1 7 4 2.4 76 4.3 81 REDLANDS / COTTONWOOD 1 1 7 1 4 3.0 36 1 1 7 4 2.6 38 7.7 49
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Address Stipulated Order Address Stipulated Order with with Prioritized Prioritized Projects rojects
Meet Stipulation Order Requirements
with with Prioritized Prioritized Projects Projects
Meet Stipulation Order Requirements Risk reduction Future demands Future demands New regulatory requirements Coordination with other projects
j
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Standard operating
d procedures
Availability of inventory Skills training Work management process Computerized maintenance
management system
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Review Likelihood and Consequence
Criteria Criteria
Review Wastewater Asset Hierarchy Score Wastewater Assets Score Wastewater Assets
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