THE MYTH OF DEEP PIPES: CRITICALITY AND PIPE REHABILITATION STRATEGIES
|
|
- Jasmin Adams
- 8 years ago
- Views:
Transcription
1 THE MYTH OF DEEP PIPES: CRITICALITY AND PIPE REHABILITATION STRATEGIES Ken Harlow, Director of Management Services, Brown and Caldwell Introduction A fundamental principal of asset management is that asset risk governs most some would say all asset decisions. And asset risk is best understood by decomposing it into its two components: Probability of failure and consequence of failure. Risk is normally mapped by locating the risk on a matrix that has probability of failure on one axis and consequence of failure on the other. The probability/consequence approach to risk analysis becomes even more powerful when both probability and consequences are quantified, the former in percentages and the latter in dollars. This results in a fully-quantified risk cost, or annual risk exposure, which is the product of the consequence of the risk, in dollars, times the probability of occurrence in any one year. Knowing risk costs, combined with a good understanding of the true root causes of asset failures, leads to very high quality asset decisions. Risk governs almost all of our asset decisions. But we need to understand the two aspects of risk, probability and consequences. But even in its most basic and unquantified form, the matrix approach can be quite helpful. Because of its simplicity and usefulness, it is used widely in asset risk analysis sometimes even where it doesn t quite fit. Risk and Pipe Rehabilitation As an example, most risk-based approaches to prioritizing rehabilitation and replacement follow the matrix scheme. These approaches generally include an assumption that s with higher consequences of failure (that is, more critical s) should be addressed before less critical s if probabilities of failure are the same. Figure 1 on the next page shows a typical risk matrix for sewer, where both consequence and probability of failure are determined by evaluation of multiple factors, not shown here. One of the factors determining consequence of failure is usually the depth of the ; increasing depth means increasing criticality (consequence of failure) because replacing or repairing deeper is more expensive than for shallower
2 Risk Matrix Key to actions: Repair or replace within one month Consequence of failure Probability of Failure Figure 1: Typical risk probability/consequence matrix, sewer Repair or replace within six months Set high CCTV frequency, monitor for change Set low CCTV frequency While there is obviously some subjectivity in play here, the matrix approach seems to give us a clear and easy-to-understand way of prioritizing our work. The message is, Set a higher priority on those s that have the highest probabilities and consequences of failure. This certainly sounds right. But is it? As mentioned above, one element of consequence of failure is usually depth. There is an assumption, which is correct, that deep s are more critical than shallow ones because the cost of failure is higher. So deeper s, all else being equal, will be assigned a higher priority than shallower ones. If the probabilities of failure for a shallow and a deep are the same, and the cost of failure of a deep is higher, then the deep will get priority. er s are usually considered more critical and they are. But is that a good guide to rehabilitation priority? However, asset management is not merely about reducing costs risk costs or any other kind of costs. Asset management is about maximizing community value, that is, the excess of benefit (reduction in risk cost in this case) over cost (what we invest to achieve that reduction). Proactive measures to reduce risk also have costs, and these costs may be much higher for some s than for others. In other words, although proactive measures may indeed reduce risk, the value of that reduction must be measured against the costs incurred to achieve it. A Pipe Rehabilitation Example We have two 200-foot segments of ten-inch vitrified clay sewer, equally deteriorated and equally likely to fail. They are under similar roads with similar traffic volumes, in similar soils, in areas with similar development, etc. The only significant difference is that one is buried at six feet, the other at twenty feet. The preferred remedy in either case is to excavate and replace the segment. The cost of replacement of the shallow is $40,000. The same cost for the deep is $100,000. Replacement of either will cost the same cost regardless of whether the fails or we decide to replace it proactively
3 We believe that each is almost certain to fail sometime in the next thirty years, so each has a 3.33 percent chance of failure each year. For the shallow, the social and environmental costs of failure are $40,000. The same costs for the deep are $60,000, mostly because replacement will take longer with a resulting longer period of traffic disruption. In either case, a new will have a quarter percent chance of failure annually during the first thirty years of its life The deep in this example is more critical because the total cost of failure, including both direct and indirect costs, is $160,000 fully twice the $80,000 of the shallow. But, given equal probabilities of failure, should the deep have priority in our refurbishment program? Here s a summary of the facts given: Cost of failure, existing Annual probability of failure Annual risk exposure Direct $40,000 $100,000 Existing 3.33% 3.33% Existing $2,667 $5,333 Indirect 40,000 60,000 Replacement 0.25% 0.25% Replacement Total $80,000 $160,000 Reduction 3.08% 3.08% Reduction $2,467 $4,933 Figure 2: Costs involved in example, shallow versus deep Note that the annual risk exposure (aka risk cost ) is simply the total cost of failure, in each case, multiplied by the annual probability of failure. The benefit is the Now let s do two benefit/cost analyses to see whether dealing with present value of the reduction in risk the deep should have priority over the shallow, as the cost; the cost is that matrix shown in Figure 1 would suggest. of excavating and replacing the. In each case: The benefits are the present values of the reductions in risk exposure, $4,933 annually in the case of the deep and $2,467 for the shallow. We ll use 30-year present value calculations at a real discount rate of three percent to calculate the value of these annual benefits today. The cost is the outlay required to achieve the risk reduction, $40,000 for the shallow and $100,000 for the deep. This is a one-time outlay, so no present value calculations are necessary. Here s what the two benefit/cost analyses look like. Do nothing Remedy Net benefit Do nothing Remedy Net benefit Cost $0 $40,000 ($40,000) $0 $100,000 ($100,000) Risk (PV) 52,268 3,920 48, ,536 7,840 96,696 Total $52,268 $43,920 $8,348 $104,536 $107,840 ($3,304) Benefit (reduction in risk) $48,348 $96,696 Cost (outlay for replacement) $40,000 $100,000 Benefit/cost ratio Figure 3: NPV and benefit/cost analyses, replacement of shallow versus deep - 3 -
4 Replacing the deep clearly has a higher benefit, a reduction in the present value of risk exposure of about $97 thousand, twice the $48 thousand reduction achieved by replacing the shallow. But at what cost? We re paying $100 thousand for this risk reduction; more than it is worth. The investment has a benefit/cost ratio of only 0.97, not a good use of our customers money. Investing in replacement of the shallow, although it offers a smaller benefit, costs only $40 thousand and has a benefit/cost ratio of 1.21, suggesting that it is a sound investment for our customers. So in this case, replacing the shallow offers a far better benefit/cost ratio, or more bang for the buck. In general, our utility s customers will be best served if the benefit/cost ratio determines the action to be taken, and (in this case) the shallow is replaced in preference to the deep one even though it is far less critical than the deep and the probabilities of failure of the two s are exactly the same! Summary In prioritizing rehabilitation or replacement of assets, criticality should not be used without considering the cost of intervention. What is important is not just the risk averted the cost of averting the risk must be considered as well. Utilities should prioritize rehabilitation projects, or any projects for that matter, based on return on investment or time-adjusted benefit/cost ratio regardless of the various costs and probabilities taken in isolation. This will maximize return to the community. If this rule is followed rather than depending on criticality alone, there will be an increased tendency to deal with easier s at the Rehab priorities should be based on the ROI or benefit/ cost ratio expected, not simply the risk avoided. expense of difficult ones. Because of the lower average cost of each intervention, utilities will be able to remedy more high-risk situations and avert more water outages or sewer spills at the same level of spending. Some Cautions (Important!) The example given here is an all else being equal one. Before we decide to rehabilitate all our shallower s first, we need to consider that: 1. er s are often larger. A failure of a large is likely to have more severe consequences than failure of a small. Both the direct costs of replacement and the indirect costs to the community may be much greater. If this were the case in the example above, the benefit/cost analyses might have come out quite differently. 2. These deeper and larger s may be found more frequently where population densities are the greatest that is, downtown. Again, the economic impacts of failure may be very significant if this is the case. 3. Another comment, offered by Kevin Young, Managing Director of Hunter Water, Australia (and added to the first version of this paper posted). Sliplining is an increasingly popular alternative to dig-and replace, and the cost difference between shallow and deep s may be minimal. If sliplining is an alternative, then deeper s will get higher priorities because of the greater social costs of failure
5 Still, the principles of benefit/cost continue to apply. The numbers may change, and with them the priorities, but the form of the analysis remains the same. Other Implications This approach suggested in this paper applies not only to rehabilitation work, but to condition assessment as well. In the case of sewer s, for example, where CCTV inspections are often used as an early warning system of failure, CCTV schedules should be driven by the same ROI or benefit/cost considerations as rehabilitation. These same principles should govern condition assessment activities. This is because there are only two possible immediate outcomes from a CCTV inspection: Do nothing, or else take proactive measures to reduce risk. Since taking proactive measures in higher-roi situations will offer the best value to the community, inspection priorities just like rehabilitation priorities should be based on the expected community value of the interventions that might result from the inspections. Interested? Bookmark Ken Harlow s Asset Management Page:
YOUR PIPE RENEWAL CIP, PART 2: THE SANDS OF TIME
YOUR PIPE RENEWAL CIP, PART 2: THE SANDS OF TIME Ken Harlow, Director of Management Services, Brown and Caldwell In Part 1 we considered a problem pipe with observed defects. We decided that it would be
More informationEarth Retaining Structures
Earth Retaining Structures and Asset Management Earth Retaining Structures and Asset Management A Critical Component Tool in Maintaining Public Safety Earth Retaining Structures (ERS) are often an overlooked
More informationModeling Sewer Pipe Deterioration for Risk Based Planning using a Markov Chain Model. Christopher Pawlowski Shawn Loew
Modeling Sewer Pipe Deterioration for Risk Based Planning using a Markov Chain Model Christopher Pawlowski Shawn Loew August 27, 2014 Asset Management Using Risk Based Planning Limited Funds Unlimited
More informationAnalyzing The Bread & Butter Benefits of Sewer Main Pipebursting. Matt Werth General Manager PM Construction
Analyzing The Bread & Butter Benefits of Sewer Main Pipebursting Matt Werth General Manager PM Construction Pipebursting is the answer to many very difficult rehabilitation needs where there are almost
More informationInfo What? Using InfoMaster to Develop a Rehabilitation and Replacement Plan
Info What? Using InfoMaster to Develop a Rehabilitation and Replacement Plan Amanda Lei - City of San Jose Alex Palmatier - HDR 2014 HDR, Inc., all rights reserved. Background Forecasting and Budget Data
More informationRepair or Replacement - Band-Aids vs. Surgery
Repair or Replacement - Band-Aids vs. Surgery Using RCP for the Replacement of Failed or Undersized Culverts www.concrete-pipe.org Introduction and Background Our Nation s infrastructure owners are facing
More informationPhased Assessment Strategy for Sewers
Phased Assessment Strategy for Sewers A plan for understanding sewer system condition quicker, with fewer resources. Venay Sehgal Bhatia Digital Marketing Manager Envirosight Are deteriorating infrastructure
More information3 More on Accumulation and Discount Functions
3 More on Accumulation and Discount Functions 3.1 Introduction In previous section, we used 1.03) # of years as the accumulation factor. This section looks at other accumulation factors, including various
More informationHow To Manage Asset Management
4. Managing asset lifecycles a) Asset condition The condition of an asset is a measure of its physical state and provides indication as to whether or not service levels are being attained. Tracking the
More informationCHARTER TOWNSHIP OF FENTON SEWER SYSTEM FINANCIAL OVERVIEW JANUARY, 2014
CHARTER TOWNSHIP OF FENTON SEWER SYSTEM FINANCIAL OVERVIEW JANUARY, 2014 Fenton Township receives numerous inquiries regarding the relatively high sewer use fees that Township residents have been paying
More informationCost Estimating Concepts
Cost Estimating Concepts Goal to provide an overview of cost estimating (CE) concepts in order to review CEs prepared by others or to create alternative CEs Why? financial assurance provision based upon
More informationSUMMARY OF DISTRIBUTION INTEGRITY MANAGEMENT PROGRAM
Page 1 of 9 SUMMARY OF DISTRIBUTION INTEGRITY MANAGEMENT PROGRAM Program Overview: The Distribution Integrity Management Program ( DIMP ) activities are focused on obtaining and evaluating information
More informationSanitary Sewer Master Plan
, Illinois Sanitary Sewer Master Plan EXECUTIVE SUMMARY Prepared by September 9, 2010 1670 South Taylorville Road Decatur, Illinois 62521 www.bgmengineering.com Sanitary Sewer Master Plan A. SCOPE OF STUDY
More informationLife Cycle Cost Analysis (LCCA)
v01-19-11 Life Cycle Cost Analysis (LCCA) Introduction The SHRP2 R-23 Guidelines provide a number of possible alternative designs using either rigid of flexible pavements. There is usually not a single
More informationWhite Paper from Global Process Innovation. Fourteen Metrics for a BPM Program
White Paper from Global Process Innovation by Jim Boots Fourteen Metrics for a BPM Program This white paper presents 14 metrics which may be useful for monitoring progress on a BPM program or initiative.
More informationRisk-based Modelling for Wastewater Infrastructure Asset Management
Risk-based Modelling for Wastewater Infrastructure Asset Management Zoran Kapelan University of Exeter International workshop on the science of asset management (FRMRC2) London 9 Dec 2011 Outline The framework
More informationAPPENDIX B Understanding the FEMA Benefit-Cost Analysis Process
ENGINEERING PRINCIPLES AND PRACTICES APPENDIX B Understanding the FEMA Benefit-Cost Analysis Process The Stafford Act authorizes the President to establish a program to provide technical and financial
More informationBACKUPS! Solving the Problem in a Seattle Neighborhood
BACKUPS! Solving the Problem in a Seattle Neighborhood MARTHA BURKE SEATTLE PUBLIC UTILITIES A ND A NDY BEHNKE HERRERA ENVIRONMENTAL CONSULTANTS PNCWA 2 009 BOISE, IDAHO Broadview Area Project Study Area
More informationINCORPORATING CONDITION ASSESSMENT INTO A COMPREHENSIVE ASSET MANAGEMENT PROGRAM
INCORPORATING CONDITION ASSESSMENT INTO A COMPREHENSIVE ASSET MANAGEMENT PROGRAM Tony Urquhart Vice President MWH Business Solutions Suite 700, 380 Interlocken Crescent Broomfield, CO 80304 ABSTRACT In
More informationUtilizing Remaining Useful Life for Asset Management of Critical Wastewater Assets
*Jessica Brown, P.E., Freese and Nichols, Inc., (817) 312-6980; Jessica.Brown@freese.com Mazen Kawasmi, Freese and Nichols, Inc. ABSTRACT The City of Fort Worth s wastewater collection system includes
More informationOakland Macomb Interceptor Drain Rehabilitation State Revolving Fund Project Plan Overview. Public Meeting June 10, 2009
State Revolving Fund Project Plan Overview Public Meeting June 10, 2009 What is the OMI? The OMI is the Oakland Macomb Interceptor Sewer. The OMI transports much of the sanitary sewage from Oakland and
More informationIS THAT LINER THICK ENOUGH?
IS THAT LINER THICK ENOUGH? Philip McFarlane, Opus International Consultants Ltd ABSTRACT The amount of pipeline rehabilitation being undertaken in New Zealand is increasing each year. Larger diameter
More informationHow to Do a Water & Sewer System Inventory - Capital Improvements Plan
Table of Contents Background, Objective and Method... 2 Capital Outlay - Water System... 3 Capital Outlay - Sewer System... 4 Summary... 4 Water Exhibit... 5 Sewer Exhibit....6 w w w. c a v a n a u g h
More informationSupplier Training 8D Problem Solving Approach. 2013 Brooks Automation, Inc.
Supplier Training 8D Problem Solving Approach What is the 8D method? 8D stands for the 8 disciplines or the 8 critical steps for solving problems. It is a highly disciplined and effective scientific approach
More informationUsing Risk-Based GIS Modeling Software to Optimize Sewer Renewal Planning
Close Using Risk-Based GIS Modeling Software to Optimize Sewer Renewal Planning By Paul F. Boulos Rapid population growth and the deterioration of aging infrastructures are overtaxing sewer systems worldwide.
More informationUtilizing Trenchless Technology to Achieve Watermain Asset Management Objectives
North American Society for Trenchless Technology (NASTT) NASTT s 2015 No-Dig Show Denver, Colorado March 15-19, 2015 MM-T6-05 Utilizing Trenchless Technology to Achieve Watermain Asset Management Objectives
More information4 Steps for Quality Sewer Performance in Perpetuity
4 Steps for Quality Sewer Performance in Perpetuity By Gerhard Gerry P. Muenchmeyer, P. E. Principal Muenchmeyer Associates, LLC E-mail gerry@muenchmeyerassoc.com INTRODUCTION A well maintained and functional
More informationPipe bursting provides viable alternative for rehab work By Greg Key, U.S. Pipe
Pipe bursting provides viable alternative for rehab work By Greg Key, U.S. Pipe As the Environmental Protection Agency tightens groundwater quality regulations, old leaking sewers lines made of pipe clay,
More informationInnovative Methods to Assess Sewer Pipe Risk and Improve Replacement Planning Decisions
Innovative Methods to Assess Sewer Pipe Risk and Improve Replacement Planning Decisions Seth Anderson, GISP Management Consultant Celine Hyer, P.E. Associate Vice President Presentation Topics The Infrastructure
More informationWhat a Vulnerability Assessment Scanner Can t Tell You. Leveraging Network Context to Prioritize Remediation Efforts and Identify Options
White paper What a Vulnerability Assessment Scanner Can t Tell You Leveraging Network Context to Prioritize Remediation Efforts and Identify Options november 2011 WHITE PAPER RedSeal Networks, Inc. 3965
More information12/8/2014. Brought To You By: This webcast is sponsored by NASSCO with the support of IPBA.
Brought To You By: This webcast is sponsored by NASSCO with the support of IPBA. 1 Pipe Bursting A Mature and Diverse Trenchless Technology December 10, 2014 1:00 3:00 pm Eastern How to Participate Today
More informationEconomic value of reducing the risk of a gas supply outage
Economic value of reducing the risk of a gas supply outage A threshold benefit-cost analysis Prepared for ActewAGL Centre for International Economics Canberra & Sydney December 24 2009 The Centre for International
More informationSPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO)
SPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO) 1 Intent: The intent of trenchless sewer pipe Insertion is to rehabilitate the existing sewer
More informationSetting Priorities for Stormwater Infrastructure to Achieve Best Results Using a Risk Analysis
Setting Priorities for Stormwater Infrastructure to Achieve Best Results Using a Risk Analysis Wayne Miles, PE Michael Sloop, PE Presented at 2014 APWA Water Resources Conference September 16, 2014Wayne
More informationSelling Contact Center Software - The ROI Factor
OVERCOMING NO DECISION: VALUE SELLING IN THE CONTACT CENTER By Alex Corman, Technology Partners INTRODUCTION You may do everything right. And yet even so you may lose the deal to no decision. Effectively
More informationSewer Pipe Lining An Economic Solution for Pipe Rehabilitation By Tawana Albany Nicholas, Virgin Islands Waste Management Authority
Sewer Pipe Lining An Economic Solution for Pipe Rehabilitation By Tawana Albany Nicholas, Virgin Islands Waste Management Authority Abstract The United States Virgin Islands Waste Management Authority
More informationSECTION 02763 POINT REPAIRS TO SANITARY SEWERS. A. Repairs to existing sewer lines by replacing short lengths of failed pipe.
SECTION 02763 PART 1 G E N E R A L 1.01 SECTION INCLUDES A. Repairs to existing sewer lines by replacing short lengths of failed pipe. 1.02 UNIT PRICES A. Measurement for point repairs is on a unit price
More informationMEMORANDUM. Doug Monn, Public Works Director Jim App, City Manager. Matt Thompson, Wastewater Resources Manager. Date: January 24, 2011
MEMORANDUM To: From: Doug Monn, Public Works Director Jim App, City Manager Matt Thompson, Wastewater Resources Manager Date: January 24, 2011 Subject: Audit of 2010 Wastewater Collection Performance City
More informationIndustrial Pipeline Integrity Management & Remote Polyurea Pipe Lining Systems.
Industrial Pipeline Integrity Management & Remote Polyurea Pipe Lining Systems. Aging pipeline infrastructure and industry s inability to evaluate and inspect has left many engineers and plant managers
More informationBreak-Even and Leverage Analysis
CHAPTER 6 Break-Even and Leverage Analysis After studying this chapter, you should be able to: 1. Differentiate between fixed and variable costs. 2. Calculate operating and cash break-even points, and
More informationCity of Olympia Water System Plan Update
Appendix 12- City of Olympia Water System Plan Update Technical Memorandum: October 8, 214 66 Columbia Street NW Suite 2 Olympia, WA 981 This page left intentionally blank. Table of Contents Introduction...
More informationThe City of Owen Sound Asset Management Plan
The City of Owen Sound Asset Management Plan December 013 Adopted by Council March 4, 014 TABLE OF CONTENTS 1 EXECUTIVE SUMMARY... 1 INTRODUCTION....1 Vision.... What is Asset Management?....3 Link to
More informationIntroduction to Health Care Accounting. What Is Financial Management?
Chapter 1 Introduction to Health Care Accounting and Financial Management Do I Really Need to Understand Accounting to Be an Effective Health Care Manager? Today s health care system, with its many types
More informationENGINEERED FOUNDATIONS. Department of Public Works Jeff Hill, PE
ENGINEERED FOUNDATIONS Department of Public Works Jeff Hill, PE What is an engineered foundation. A Foundation Design Developed by a Trained Professional (Engineer) Types of Foundations (All of which can
More informationSection 6 Benefit-Cost Analysis
6.1 Introduction For the preferred storage alternatives, a benefit-cost analysis (BCA) was conducted to evaluate the economic feasibility of implementation. The economic evaluation was conducted using
More informationInsurance management policy and guidelines. for general government sector, September 2007
Insurance management policy and guidelines for general government sector September 2007 i Contents 1. Introduction... 2 2. Identifying risk is the first step... 2 3. What is risk?... 2 4. Insurance is
More informationOpex vs. Capex. How your Business Can Take Advantage of Technology and Increase ROI. www.ipromedia.us
Opex vs. Capex How your Business Can Take Advantage of Technology and Increase ROI www.ipromedia.us Content 4 Opex vs. Capex 8 Take Advantage of Opex With a Hosted Communications System 12 How to Take
More informationAppendix J: Pipe Evaluation and Replacement Options and Costs
Appendix J: Pipe Evaluation and Replacement Options and Costs STORMWATER SYSTEM INVENTORY The City of Olympia has an extensive stormwater conveyance system. As a matter prudent management of the Stormwater
More informationExcavation Procedure. MIDGA Reviewed: 07/29/14 Effective: 06/20/09 Supersedes: Original Preparer: Owner: Approver: Safety Safety Safety
Procedure No.: SOP-0203 Page: 1 of 5 Preparer: Owner: Approver: Safety Safety Safety 1. PURPOSE The purposes of this procedure is to ensure safe excavation, reduce the potential of damaging underground
More informationUsing Frequent Sewer Inspection to Prioritize Asset Management. May 1, 2014. John Schroeder, P.E., BCEE Drew Richards, EI Tim Fallara, P.E.
Using Frequent Sewer Inspection to Prioritize Asset Management May 1, 2014 John Schroeder, P.E., BCEE Drew Richards, EI Tim Fallara, P.E. Agenda Rationale and Goals for Sewer Re-inspection How and why
More informationTHE PROJECTED ECONOMIC AND FISCAL IMPACTS OF A TENNESSEE HISTORIC REHABILITATION INVESTMENT INCENTIVE
THE PROJECTED ECONOMIC AND FISCAL IMPACTS OF A TENNESSEE HISTORIC REHABILITATION INVESTMENT INCENTIVE February 2014 Prepared by: Economic Impact Group, LLC. Copyright 2014 Economic Impact Group, LLC. EXECUTIVE
More informationSanitation District No. 1 of Northern Kentucky. SD1's Sanitary and Storm Water Asset Management Program. KSPE Annual Convention
Sanitation District No. 1 of Northern Kentucky SD1's Sanitary and Storm Water Asset Management Program KSPE Annual Convention April 28, 2011 Background Outline CSAP Program Development CSAP Program Implementation
More informationDefense Technical Information Center Compilation Part Notice
UNCLASSIFIED Defense Technical Information Center Compilation Part Notice ADP017712 TITLE: Rehabilitation of TCE-Contaminated Underground Storm Water System Using Trenchless Technology DISTRIBUTION: Approved
More informationPublic Outreach Meeting
Ross Valley Sanitary District Magnolia Trunk Sewer Rehabilitation Project April 16 2014 Public Outreach Meeting Ross Valley Sanitary District Magnolia Trunk Sewer Rehabilitation Project April 16 2014 Purpose
More informationCHAPTER 9 NET PRESENT VALUE AND OTHER INVESTMENT CRITERIA
CHAPTER 9 NET PRESENT VALUE AND OTHER INVESTMENT CRITERIA Answers to Concepts Review and Critical Thinking Questions 1. A payback period less than the project s life means that the NPV is positive for
More informationRisk Analysis and Quantification
Risk Analysis and Quantification 1 What is Risk Analysis? 2. Risk Analysis Methods 3. The Monte Carlo Method 4. Risk Model 5. What steps must be taken for the development of a Risk Model? 1.What is Risk
More informationSewer Rehabilitation Design Requirements
Sanitary Sewer Overflow (SSO) Control and Wastewater Facilities Program Sewer Rehabilitation Design Requirements City of Baton Rouge/Parish of East Baton Rouge Department of Public Works Submitted by Prepared
More informationEconomic Ordering Quantities: A Practical Cost Reduction Strategy for Inventory Management
Economic Ordering Quantities: A Practical Cost Reduction Strategy for Inventory Management By Todd Duell Abstract Inventory management is an important concern for all managers in all types of businesses.
More informationCOLLECTION SYSTEM SETTLEMENT AGREEMENT
COLLECTION SYSTEM SETTLEMENT AGREEMENT Wastewater Collection System Rehabilitation and Replacement Report and Plan A deliverable of the Settlement Agreement and Final Order between the city of Los Angeles
More informationHB 2637. Amendments to the. Kansas Underground Utility Damage Prevention Act Effective July 1, 2008 and July 1, 2009
HB 2637 Amendments to the Kansas Underground Utility Damage Prevention Act Effective July 1, 2008 and July 1, 2009 Effective July 1, 2008 All water and wastewater facilities installed by an operator after
More informationProject Selection and Project Initiation
Chapter 4 Project Selection and Project Initiation Objectives Understand how to select right projects and why selecting the right projects to work on is important and sometimes difficult for an organization
More informationTHE ROI OF CLOUD-BASED FINANCIAL APPLICATIONS
RESEARCH NOTE January 2014 THE ROI OF CLOUD-BASED FINANCIAL APPLICATIONS THE BOTTOM LINE Nucleus has analyzed the experiences of many cloud customers over the years and found that cloud-based financial
More information"SEO vs. PPC The Final Round"
"SEO vs. PPC The Final Round" A Research Study by Engine Ready, Inc. Examining The Role Traffic Source Plays in Visitor Purchase Behavior January 2008 Table of Contents Introduction 3 Definitions 4 Methodology
More informationSOCALGAS APROACH TO PIPELINE INTEGRITY
SUMMER 2011 SOCALGAS APROACH TO PIPELINE INTEGRITY Southern California Gas Company (SoCalGas ) is committed to providing clean, safe and reliable natural gas to its customers and takes important steps
More informationAllstate Getting Much More from Its IT Services with ServiceNow Cloud-Based IT Service Management Solution
IDC ExpertROI SPOTLIGHT Allstate Getting Much More from Its IT Services with ServiceNow Cloud-Based IT Service Management Solution Sponsored by: ServiceNow Matthew Marden March 2015 Overview The Allstate
More informationCompetent. Person Manual. Course Preview TRENCHSAFETY
Course Preview Competent Person Manual A guide to industry standards, practices, and regulatory requirements for OSHA Construction Industry Regulations 29 CFR 1926, Subpart P - Excavations TRENCHSAFETY
More informationSection 4 Pipe and Maintenance Hole Inspection and Condition Assessment Plan
and Condition Assessment Plan 4.1 Introduction 4.1.1 Purpose This addresses the requirements of Section IV.A. of the EPA Order. The plan documents the progress that each agency has made to date regarding
More informationINVESTMENT RISK MANAGEMENT POLICY
INVESTMENT RISK MANAGEMENT POLICY BOARD APPROVED: DECEMBER 27, 2011 TABLE OF CONTENTS SECTION PAGE I. Purpose... 1 II. Policy Roles and Responsibilities... 1 III. Risk Guidelines... 2 IV. Measurement and
More informationDetermining the Economic Value of Preventive Maintenance
Determining the Economic Value of Preventive Maintenance Preventive maintenance has been more popular in principle than in practice over the years. One scarcely can argue with the idea of keeping equipment
More informationMa r k e t i n g RO I :
Ma r k e t i n g RO I : playing to win On the profit scorecard, ROI is the measure that counts. By James D. Lenskold There is no better example of events measured by winners and losers than sports games.
More informationTypes of Data. Features. Getting Started. Integrated Roadway Asset Management System
3-2014 GIS-based Asset Management System Optimize Maintenance Manage Signs Analyze Safety Roadsoft is a roadway management system for collecting, storing, and analyzing data associated with transportation
More informationCity of Mill Valley Sewer Capital Improvement Plan 2012 2016
City of Mill Valley Sewer Capital Improvement Plan 2012 2016 I. BACKGROUND Between December 2004 and February 2008, the ed States Environmental Protection Agency (EPA) conducted inspections of the SASM
More informationAppendix F Benefit-Cost Analysis of Flood Protection Measures
Appendix F Benefit-Cost Analysis of Flood Protection Measures Acronyms used in Appendix F: AA B AA C AA D BC BFE EAD FEMA NED O&M PV RED USACE Average Annual Benefits Average Annual Cost Average Annual
More informationSan Antonio Water System Standard Specifications for Construction ITEM 866 SEWER MAIN TELEVISION INSPECTION
ITEM 866 SEWER MAIN TELEVISION INSPECTION 866.1 DESCRIPTION: The Contractor shall furnish all labor, materials, equipment, and incidentals to provide the televising and a NASSCO-(PACP) standard video,
More informationTechnical Losses in Natural Gas Transportation, Distribution, and Storage. Paul Metro Pennsylvania Public Utility Commission
Technical Losses in Natural Gas Transportation, Distribution, and Storage Paul Metro Pennsylvania Public Utility Commission 1 Unaccounted for Gas (UFG or Technical Losses) Unaccounted for gas is the difference
More informationป งบประมาณ พ.ศ.๒๕๕๘ ( ๑ ต ลาคม ๒๕๕๗ ถ ง 30 ก นยายน ๒๕๕๘ ) สร ปผลปร มาณงานพ สด การจ ดซ อ/จ าง/เช า ในรอบเด อนพฤศจ กายน ๒๕๕๗ ส าน กงานท ด นจ งหว ดเช
๑ ท ชม ๐๐๒๐.๑.๓/ ลว. ๗ พฤศจ กายน ๒๕๕๗ ๒๐,๐๐๐ ตกลงราคา เร อง รายงานขอจ ดซ อว สด น าม นเช อเพล งและหล อล น สาขาแม แตง รถยนต ย ห อโตโยต า ทะเบ ยน ฮก-๔๑๖๔ กทม จากบร ษ ทส ข มเซอร ว ส จ าก ด ๒ ท ชม ๐๐๒๐.๑.๓/
More informationCivil Air Patrol BASIC LEVEL OPERATIONAL RISK MANAGEMENT
Civil Air Patrol BASIC LEVEL OPERATIONAL RISK MANAGEMENT 1 Civil Air Patrol wishes to thank the USAF Safety Center for the use of their information in the creation of this presentation. 2 Define Operational
More informationChapter 1 Developing a healthy appetite for risk [DTI] 3. Chapter 2 Getting the best bang per buck [DEFRA] 5
CONTENTS Page Chapter 1 Developing a healthy appetite for risk [DTI] 3 Chapter 2 Getting the best bang per buck [DEFRA] 5 Chapter 3 Getting your house in order [Companies House] 9 Thinking About Risk -
More informationEstimating Trench Excavation
Estimating Excavation By Steven J. Peterson, PE, MBA Introduction excavation is often performed by hydraulic backhoe excavators. This is because hydraulic excavators are not only good at excavating below
More informationSeattle Public Utilities Mainline Sewer Pipe Maintenance/Backup Strategy June, 2005
Seattle Public Utilities Mainline Sewer Pipe Maintenance/Backup Strategy June, 2005 1 of 30 Executive Summary Seattle Public Utilities (SPU) currently experiences an average of 80 mainline sanitary sewer
More informationBridges & Culverts Condition by Quantity
3.4.3 What condition is it in? Approximately 93% of the municipality s bridge structures are in good to excellent condition, with the remaining 7% in fair condition. As a result, the municipality received
More informationAccurately and Efficiently Measuring Individual Account Credit Risk On Existing Portfolios
Accurately and Efficiently Measuring Individual Account Credit Risk On Existing Portfolios By: Michael Banasiak & By: Daniel Tantum, Ph.D. What Are Statistical Based Behavior Scoring Models And How Are
More informationHigh Density Polyethylene Liners for Rehabilitation of Corroded Pipelines
High Density Polyethylene Liners for Rehabilitation of Corroded Pipelines Jeff Schell General Manager United Pipeline Middle East, Inc. Introduction HDPE Liners A cost effective and environmentally beneficial
More informationHow to Perform a Break-Even Analysis in a Retail Store A Step by Step Guide
How to Perform a Break-Even Analysis in a Retail Store A Step by Step Guide By BizMove Management Training Institute Other free books by BizMove that may interest you: Free starting a business books Free
More informationERIC C. CAMP WHITAKER, CHALK, SWINDLE & SAWYER, LLP 301 COMMERCE STREET, SUITE 3500 FORT WORTH, TEXAS 76102 (817) 878-0500 ECAMP@WHITAKERCHALK.
NATURAL GAS PIPELINE EASEMENT AND RIGHT-OF-WAY AGREEMENTS: ERIC C. CAMP WHITAKER, CHALK, SWINDLE & SAWYER, LLP 301 COMMERCE STREET, SUITE 3500 FORT WORTH, TEXAS 76102 (817) 878-0500 ECAMP@WHITAKERCHALK.COM
More informationA NEW METHOD FOR DEVELOPING THE MOST COST- EFFECTIVE REHABILITATION PROGRAMS FOR OUR AGEING SEWER NETWORKS
A NEW METHOD FOR DEVELOPING THE MOST COST- EFFECTIVE REHABILITATION PROGRAMS FOR OUR AGEING SEWER NETWORKS Introduction Toby Bourke (MWHSoft), Graham McGonigal (MWH) There is currently widespread concern
More informationramyam E x p e r i e n c e Y o u r C u s t o m e r s D e l i g h t Ramyam is a Customer Experience Management Company Intelligence Lab
ramyam Intelligence Lab E x p e r i e n c e Y o u r C u s t o m e r s D e l i g h t Ramyam is a Customer Experience Management Company enliven CEM An enterprise grade Customer Experience Management Solu
More informationMBA Teaching Note 08-02 Net Present Value Analysis of the Purchase of a Hybrid Automobile 1
MBA Teaching Note 08-02 Net Present Value Analysis of the Purchase of a Hybrid Automobile 1 In this day and age of high energy prices and a desire to be more environmentally friendly, the automobile industry
More informationGetting More From Your Actuarial Analysis
Getting More From Your Actuarial Analysis For Companies Retaining Property/Casualty Insurance Risks PwC 1 Introduction Many companies retain property/casualty insurance (P&C) risks, such as workers' compensation,
More informationTracking & Managing Safety Performance
American Construction Safety Solutions, LLC Where the goal is ultimately to help give Clients the safest jobsites Tracking & Managing Safety Performance HOW CAN YOU BENEFIT FROM THE ACSS LLC SAFETY TRACKING
More informationThe city of Odessa, Texas,
http://dx.doi.org/10.5991/opf.2012.38.0027 John D Antoni is a principal with Alan Plummer Associates (www.apaienv.com), Houston. Roy Staggs, assistant director of utilities, and Ajay Shakyaver, city engineer,
More informationChapter 17 Corporate Capital Structure Foundations (Sections 17.1 and 17.2. Skim section 17.3.)
Chapter 17 Corporate Capital Structure Foundations (Sections 17.1 and 17.2. Skim section 17.3.) The primary focus of the next two chapters will be to examine the debt/equity choice by firms. In particular,
More informationSPECIFICATIONS FOR SANITARY SEWER LINE REPLACEMENT IN PIONEER PARK. City of Des Peres, Missouri. 12325 Manchester Road. Des Peres, Missouri 63131
SPECIFICATIONS FOR SANITARY SEWER LINE REPLACEMENT IN PIONEER PARK City of Des Peres, Missouri 12325 Manchester Road Des Peres, Missouri 63131 Prepared by City Engineer March 2011 INVITATION TO BID SANITARY
More information11.3 BREAK-EVEN ANALYSIS. Fixed and Variable Costs
385 356 PART FOUR Capital Budgeting a large number of NPV estimates that we summarize by calculating the average value and some measure of how spread out the different possibilities are. For example, it
More informationTYPES OF PIERS USED IN NORTH AND EAST TEXAS RESIDENTIAL FOUNDATION REPAIR
TYPES OF PIERS USED IN NORTH AND EAST TEXAS RESIDENTIAL FOUNDATION REPAIR If you listen to the hype, it sounds like there must be 20 or 30 different types of piers out there. Company A says they have an
More informationHealthcare is constantly changing. We help you adapt and lead.
Healthcare is constantly changing. We help you adapt and lead. HTMS is a consulting firm that helps private and public organizations in the healthcare industry as they strive to: Operate with greater efficiency
More informationINTRODUCTION. WASTEWATER MANAGEMENT PLAN MAY 2009 Metropolitan North Georgia Water Planning District 7-1
INTRODUCTION There are approximately 16,000 miles of sewers and more than 450,000 manholes within the Metro Water District. Sewers and manholes within the Metro Water District range in age from new to
More informationAsset Management is not a system nor a collection of data nor is it a GIS
Relationship of PSAB 3150 and Asset Management David Watt Senior Asset Management Specialist Associated Engineering Quote for the day We have more information now than we can use, and less knowledge and
More informationInvestment Decision Analysis
Lecture: IV 1 Investment Decision Analysis The investment decision process: Generate cash flow forecasts for the projects, Determine the appropriate opportunity cost of capital, Use the cash flows and
More information