Inspection Tools Based on Risk

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2 Inspection Tools Based on Risk Condition Rating Very Good (1) Good (2) Fair (3) Poor (4) Very Poor (5) Consequence of Fail lure (Criticality) Low Impact (1) Medium Impact (2) High Impact (3) Screening Tools Low Risk Pipe Wall Assessment Medium ToolsRisk Inline High Inspection RiskTools

3 1. Hydraulic Evaluation 2. Leak and Gas Pocket Detection 3. Corrosion Assessment Screening Tools Screening Tools

4 Screening Tools Hydraulic Evaluations Transient Monitoring Telog TP-1, TP-2 Applicable to All Pipe Materials Transient Modeling

5 Screening Tools Acoustic Leak and Gas Pocket Detection Large Diameter Small Diameter SmartBall Correlators Free Floating External LDS-1000 Investigator Tethered Internal-Tethered Sahara Tethered

6 Screening Tools Tethered Large Diameter Leak Detection Sahara 2-Inch Taps Video and Acoustic Leak Detection Real Time Leak Locating All Pipe Materials Range of less than 1 mile LDS Inch Taps Video and Acoustic Leak Detection Real Time Leak Locating All Pipe Materials Range of 3000ft

7 Screening Tools Untethered Large Diameter Leak Detection SmartBall 4-inch taps All Pipe Materials Long Range of Approximately 15 Miles in one Long Range of Approximately 15 Miles in one deployment

8 Correlators Non-Invasive Screening Tools Small Diameter Leak Detection Inexpensive compared to large diameter tools All Pipe Materials Investigator Acoustic and Visual Tethered Can go up or downstream All Pipe Materials

9 Screening Tools Corrosion Assessment External corrosion of a pipe wall due to corrosive soils, MIC, stray currents, etc. External corrosivity survey Electromagnetic conductivity survey Soil resistivity tests (Wenner Four Pin Method) Pipe/cell to cell survey at hot spot areas Inspect for rectifiers or other sources of stray current Soil, LPR, and groundwater sampling AWWA 10 Point Scale Applicable to all Metallic and Concrete Pipe Materials

10 Pipe Wall Assessment Tools External Pipe Wall Assessment

11 Pipe Wall Assessment Tools Acoustic Sahara-2 (PWA) Echologics External Couponing Material Testing Ultrasonic Thickness Broadband Electromagnetics

12 Sahara-PWA Pipe Wall Assessment Acoustic Tools Pipe Materials: Tested on DI & CI pipe, other materials possible Localized Relative Wall Loss via an inline tool Echologics - Condition Assessment Pipe Materials: Tested on AC pipe other materials possible Relative Wall Loss between Correlator Locations Impact echo Materials: Concrete and masonry Sonic/Ultra Sonic Materials: Concrete

13 Pipe Wall Assessment External Tools Broadband Electromagnetics (BEM) Ductile Iron, Cast Iron, Steel Percent Wall Loss Couponing Destructive/All Materials Ultrasonic Thickness- DI, CI, Steel Physical Measurements

14 Pipe Wall Assessment Material Testing Barcol Hardness Testing Petrographic Examination Fracture Toughness Phenolphthalein Radiographic Testing

15 Inline Inspection Tools

16 Inline Inspection Tools In-Service Tool Intelligent Pigs PipeDiver RFTC/RFEC Magnetic Flux Leakage (MFL) See Snake/Hydra Snake Out of Service Tools Manned Entry Multi-Sensor Robotics CCTV

17 PipeDiver In-Service Inline Tools 24-Inch and Above Depending on the Configuration of the tool it can be used in DI, Steel, PCCP, and BWP Uses RFEC/TC Technology

18 MFL In-Service Inline Tools Currently 8-Inch to 42-Inch Steel, DI, and CI

19 In-Service Inline Tools See Snake/ Hydra Snake Up to 30-Inch Larger Diameter Tools in Development Tethered and Untethered Version Uses Remote Field Technology

20 MFL RFEC/TC Visual and Sounding Sonic/Ultra Sonic Out of Service Manned Entry Tools

21 MFL Manned Entry 36-Inch and Larger Ductile Iron, Cast Iron, and Steel

22 RFEC/TC 36-Inch and up Manned Entry PCCP, BWP, Ductile Iron, Cast Iron, Steel Depending on Configuration of the tool

23 Visual and Sounding All Pipe Materials 36-Inch and Larger Manned Entry Visually inspect for defects and take physical Visually inspect for defects and take physical measurements

24 Out of Service Multiple Sensor Robotics Useful in pipes that cannot be safely inspected with a manned entry Can carry RFTC, MFL, CCTV, RFT, Laser Profiler, and/or SONAR All Pipe Materials depending on Tools attached

25 All Pipe Materials All Sizes Out of Service CCTV Can be fitted with SONAR or Laser Profiler

26 Inspection Tools Based on Risk Condition Rating Very Good (1) Good (2) Fair (3) Poor (4) Very Poor (5) Consequence of Fail lure (Criticality) Low Impact (1) Medium Impact (2) High Impact (3) Screening Tools Low Risk Pipe Wall Assessment Medium ToolsRisk Inline High Inspection RiskTools

27 Questions Ashan McNealy, P.E. Pure Technologies