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2. EnTech is a 35+ year old, Professional Engineering firm that pioneered the industry of Non-Destructive Testing in 1980 and now has a worldwide reputation for quality Problem Solving. EnTech has 10+ domestic and international patents on its proven technologies to assess the repair needs of City, State & Federal physical infrastructure as well as private Pipeline, Bridge Roadway, Dam, Levee, Building developers & owners. EnTech provides cost effective remote sensing investigation procedures for pipeline mapping and the detection of pipeline leaks and erosion voids. We can locate corrosion, internal cracks and delamination voids in concrete and asphalt covered concrete roadways and bridge deck pavements. 2

3. 3 1.IR (Infrared Thermography) 2.IR-EPA (Infrared-Energy Pattern Analysis) 3.GPR (Ground Penetrating Radar / Microwaves) 4.EMI (Electromagnetic Induction / Pipe Locators or Tracers) 5.LIDAR (Light Detection and Ranging) 6.GPS (Global Positioning Systems) 7.GIS (Geographic Information Systems)

4. Helicopter Mounted Fixed-Wing MountedUnmanned Aerial Vehicle Mounted 11 Scalable for projects of any size Vehicle Mounted

5. Electric Fiber Optics Water Steam Sewer Manholes Pipeline Leaks 2008 Birmingham, AL 5

6. 6 Processed and analyzed examples of IR-EPA data showing pipelines and anomalies City of Atlanta Watershed

7. 7 Visual ImageIR-EPA Data

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9. EnTech Aerial investigation for leaking Septic fields Data collected from ~1, 000 ft. altitude 9

10. GPR / Microwaves Used to Characterize subsurface anomalies for: Depth, Length, Width, Thickness, Volume & Saturation 10

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12. After locating Anomalies Use Microwave Remote Sensing to characterize them for: Depth, Length, Width, Thickness, Volume & Saturation 3D 2D / 3D Depth Slices 12

13. LIDAR (Light Detection And Ranging) Various flood elevations shown in yellow & brown 13 Accurately locates targets to 2 cm. Replaces most Pre-project Field Surveying Needs Confirms Leaks and Sinkholes by Locating Ground Depressions

14. GIS Geographic Information Systems EnTech gives its Clients the choice of Hardcopy Report Documentation or GIS digital information in ESRI formats 14

15. 15 IR-EPA Data Associated with Each Anomaly (Water Leak Example #1)

16. 16 Gary Weil, P.E., C.P.I.M. Chief Technology Officer Taimen Taylor Project Manager Kishanth Balachandran Business Development EnTech Engineering, Inc. 228 Meadowbrook CC Way Ballwin, MO 63011 www.entechworld.com (636) 207-0200