The Nexus of Leak Detection and Asset Management

Transcription

1 North American Water Loss Conference 2017 The Nexus of Leak Detection and Asset Management Roy Martinez Business Development Manager

2 Agenda The problem The solution The process

3 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

4 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)

5 The Problem What problem does this cause? (and how does the leak inventory mitigate the risk/cost) Cost of leaking water (production cost). Mitigate by finding and fixing leaks. Many leaks (55% in Honolulu) mature into main breaks that cause damage well beyond the production costs of water. Mitigate by finding and fixing leaks before they mature into main breaks All failures take longer to manage (increased duration). Mitigate by increasing information usability (content, accuracy and availability)

6 Agenda The problem The solution The process

7 Non Revenue Water (NRW)

8 Asset Management

9 Nexus of NRW & Asset Management NRW Non Revenue Water 1. Real Water Loss 2. Unauthorized Usage 3. Asset Inventory 4. Asset Condition Asset Management

10 Agenda The problem The solution The process

11 The Steps in a Comprehensive Leak Inventory 1. Baseline acoustic & asset survey 2. System analysis and high resolution assignment 3. Apply high resolution for critical and blind spots 4. Real-time, online shovel ready leak reports 5. Prioritized real loss mitigation strategy

12 Baseline Acoustic & Asset Survey Asset inventory Asset condition Acoustic survey Unauthorized usage

13 Approach

14 Asset Defect Findings Asset Type Defect Frequency Air Release LID MISSING 2 Air Release CANNOT LOCATE 4 % of Surveyed 6.3% Hydrant CANNOT LOCATE 3 0.2% Service CANNOT LOCATE 96 Service LID MISSING 13 Valve CANNOT LOCATE 310 Valve COVERED OVER 11 Valve FULL OF DEBRIS 8 Valve LID MISSING 87 Valve STRUCTURE MISALIGNED 4 Valve LID STUCK 5 Feature class of these findings delivered mm/dd/yyyy 1.8% 13.4%

15 The Steps in a Comprehensive Leak Inventory 1. Baseline acoustic & asset survey 2. System analysis and high resolution assignment 3. Apply high resolution for critical and blind spots 4. Real-time, online shovel ready leak reports 5. Prioritized real loss mitigation strategy

16 System Analysis and Resolution Assignment Leak blind spots Leak hot spots Deteriorated asset clusters

17 Resolution

18 Houston Pipe Material Impact Effectiveness Pipe Material Miles % Limited External Comprehensive External PVC 2, % AC 1, % Null 1, % Cast Iron 1, % Ductile Iron % Steel % Prestrd Conc Cyl Pipe % Galvanized Steel % Steel Cylinder Reinforced % Other %

19 Houston Comparison of Effectiveness Limited External Comprehensive External

20 Cast Iron, Ductile iron, Galvanized, Steel Material Null, Unknown, VCP, VIP ACP, RCP, Transite PVC Resolution Required to be Effective Size

21 The Steps in a Comprehensive Leak Inventory 1. Baseline acoustic & asset survey 2. System analysis and high resolution assignment 3. Apply high resolution for critical and blind spots 4. Real-time, online shovel ready leak reports 5. Prioritized real loss mitigation strategy

22 Apply High Resolution for Critical and Blind Spots Leaks on large diameter pipes Leak localization Full system coverage

23 Large Diameter Leaks are High Value Leaks Volume loss 20x greater than small diameter mains Small and medium leaks are hard to find with external tools Inline technologies bring the sensor to the leak SmartBall Sahara

24 Computerized Leak Correlators (Picture courtesy of Vivax Metrotech) Most Common Application Area Used in combination with handheld sonic devices Where production, accuracy and efficiency are critical Non-invasive Advantages Highly accurate Disadvantages Potential for interference from background noise and high water table Diminished capability in very large and non-metallic mains

25 25 Computerized Leak Loggers Most Common Application Area Option to survey a large area at one time over a long period of time Areas with significant background noise. Non-invasive Advantages Provides long-term monitoring Not affected by background noise (Pictures courtesy of Vivax Metrotech) Disadvantages Potential for interference from high water table Requires multiple devices

26 The Steps in a Comprehensive Leak Inventory 1. Baseline acoustic & asset survey 2. System analysis and high resolution assignment 3. Apply high resolution for critical and blind spots 4. Real-time, online shovel ready leak reports 5. Prioritized real loss mitigation strategy

27 Real Time, Online Shovel Ready Leak Reports Leak localization Documented leak reports on all leaks Leaks on large diameter pipes Leaks on distribution pipes Full system coverage All delivered in GIS framework An integrated into CMMS

28 Deliverables

29 The Steps in a Comprehensive Leak Inventory 1. Baseline acoustic & asset survey 2. System analysis and high resolution assignment 3. High resolution for critical and blind spots 4. Real-time, online shovel ready leak reports 5. Prioritized real loss mitigation strategy

30 Prioritized Real Loss Mitigation Strategy Now that the system inventory, condition assessment and comprehensive leak inventory is documented We can assist (if desired by the utility) in creating or fine tuning their real water loss sustainability strategies With our capabilities, including engineering analysis, structural analysis, PureNet and other management tools and processes we can also assist the utility with their overall, complete NRW sustainable solution

31 Thank You Roy Martinez