Capital Plan Prioritization Using Asset Management Strategies

Transcription

1 Capital Plan Prioritization Using Asset Management Strategies PNCWA Webinar April 22, 2010 Marc W. Yarlott, P.E.

2 Mission for Asset Management International Infrastructure Management Manual NAMS-- 2

3 EPA 10 Steps

4 Condition Assessment What shape is it in? Criticality How important is it? How much life is left? Capital Plan Life Cycle Costing How much will it cost to maintain? How much will it cost to replace?

5 What is a Relative Criticality Analysis? Analysis on a System Level Ranked Relative to Other Plant Systems Analysis of the Relative Criticality of the Assets Being Maintained Where Relative Criticality is a Function of: Consequence of Failure Likelihood of Failure 5

6 How to Complete a Criticality Analysis Define the List of Systems that Provide 100% Asset Coverage Group Workshop Setting (Ops., Maint., Management) For Each System Prepare a List of Worst Case Failure Scenario Descriptions Example: Influent Pump System Stops Pumping and Sewage Backs-up In Basements For Each Scenario Provide Rankings on a Standardized Scale to Quantify Consequence and Likelihood 6

7 Criticality Analysis Ranking Consequence Areas Ranked for Each System s Failure Scenarios Safety Capacity Environmental Operating Costs Stakeholder Collateral Damages Ranked As: Unacceptable Major Undesirable Minor 7

8 Criticality Analysis Answers the question how important is it? 5(High) Consequence 4 2 (Low) Aggressive Monitoring Program Sample Monitoring Immediate Work Aggressive Monitoring Program (Low) (High) Probability

9 Relative Criticality

10 Condition Assessment Answers the question what shape is it in?

11 High-level Condition Assessment Tool

12 Condition Assessment Standards Vibration Score Rating Condition Description Stress Description

13 Life Cycle Analysis Answers the questions how much life is left? What has/will it cost to maintain, and what will it cost to replace? Incorporating: Asset Expected Life Cycle (years) Maintenance Cost Trending and Forecasting Estimated Replacement Value

14 Practical Life of Asset Data

15 Life-Cycle Summary Objective Assets at End of Life - In Poor Condition - Important Capital Plan

16 Condition Assessment Results Life Range Criticality - >10 Years Years Years Years Years + >10 Years Asset Description Remaining Life, Yr Condition (5=good,1=bad) Comments PUMP #1 WEST 16TH WS-0010P W/S CIP 201 PUMP #2 WEST 16TH WS-00140P W/S CIP 201 FLOW MATCHER - RAW SEWAGE RSR1 WS-01160SC W/S CIP 2011 FLOW MATCHER - RAW SEWAGE RSR2 WS-01170SC W/S CIP 2011 GATE - SLUICE #2 INFLUENT W WS W/S -1.7 Cont. Rebuild Thru Maint. 5yr VALVE GROUP RAW SEWAGE PUMPING SYSTEM W/S -2.7 Cont. Repair Thru Maint. 5yr PUMP SUMP WEST 16TH WS-00150P W/S -2.7 CIP 201 PUMP STATION WEST 16TH WS W/S CIP 201 FLUME - PARSHALL INFLUENT SOUTH W/S -2.7 Not Expected to Replace in 5yr FLUME - PARSHALL INFLUENT WEST W/S Not Expected to Replace in 5yr

17 Assessment Summary 450 Count of Assets Criticality 5 Criticality Criticality 2 Criticality Past Life by +10 Years Past Life by Years Past Life by +0-5 Years Remaining Life of +0-5 Years Remaining Life Remaining Life of Years of +10 Years Criticality 5 Criticality Criticality Criticality 1 Count of Assets Condition (5=Good)

18 Capital vs. Maintenance Decisions Repair or Replace? Asset Description Remaining Life Condition Rating (5=good,1=bad) Criticality PUMP #1 LG FRITO-LAY PUMP STATION PUMP #2 LG FRITO-LAY PUMP STATION PUMP #1 LG INDUSTRIAL PUMP STATION W/S PUMP #2 LG-0010 INDUSTRIAL PUMP STATION W/S PUMP # LG INDUSTRIAL PUMP STATION W/S Corrective Costs (Past 4 Yrs) Preventative Costs (Past 4 Yrs) Replacement Costs PUMP #1 LG FRITO-LAY PUMP STATION $ 740 $ 272 $ 15,000 PUMP #2 LG FRITO-LAY PUMP STATION $ 5,42 $ 154 $ 15,000

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20 Resources EPA Asset Management Scrapbook PNCWA Asset Management Committee Newsletter marc@wllcamg.com WEF Operations Magazine WE&T, April 2010, Factoring Condition Assessment and Asset Management Into Capital Planning QUESTIONS????

21 Abstract With limited funds, it is more important then ever to invest capital for the maximum benefit. Asset Management provides a framework to evaluate and prioritize capital investments by combining condition assessment, expected asset life, and criticality to identify the highest priority repair and replacements. Veolia Water North America (VWNA) has been developing and using a variety of methods to refine the approach to developing a capital plan in accordance with their asset management program. While the ultimate objective is to have a statistically significant projection of expected asset life based on data from the computerized maintenance management system (CMMS), a much simpler program has been developed to establish a baseline for small water and wastewater plants or projects with little CMMS history. The presentation will cover the steps taken to develop a baseline Asset Management Capital Investment Plan including: Determining Criticality using the Relative Criticality Analysis Developing Condition Assessment standards with measurable criteria Using industry standards for expected useful life to project remaining life Sorting and prioritizing asset replacements using the Criticality, Condition, and Expected Remaining Life for Capital Investment Planning. Gresham Story Start somewhere and go broad Gresham Criticality ranking done, then needed condition ranking to each asset in 6 months. Now Asking more questions. How much is spent, etc Gresham - Decision between R&R and Capital Plan Vancouver Frito Lay Using Condition/Criticality to filter results to prioritize the capital plan list Vancouver Maintenance vs. Capital how to take the data and now use it to make decisions. Pivot tables