Danville, IL Electro Scan Demonstration

September 11th, 2014

Public Works Department 1155 E. Voorhees, Suite A

Danville, IL 61832 Tel: (217) 431-2288

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Demonstration Report

September 11th, 2014

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About Danville, IL

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The City maintains and replaces the public sewer pipe, manholes, and pump-stations. Property owners fund these efforts by paying their monthly sewer fee which goes into the Sanitary Sewer Enterprise Fund. The enterprise fund insures that contributions go to the sewers and not other City general expenses.

On-Site Demonstration

Pictures

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MH 1 to MH 2 1

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MH 1 to MH 2 Electro Scan Demo – Denvale Dr.

• 8” VCP sanitary sewer, laid at minor grade, with a light flow. Pipe length was approximately 240 ft. Recent smoke testing produced smoke from storm catch basin

• Objective: Determine if Electro Scan can identify and quantify any defects in the pipe that could contribute to infiltration.

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1

MH 2

End of Scan

(Downstream)

MH 1 to MH 2 Electro Scan Demo Site Denvale Dr.

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1

MH 1

Start of Scan

(Upstream)

MH 1 to MH 2

Total Defect Flow (GPM): 12.07 7

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MH 1 to MH 2 Scan Graph – 0 to 120 Ft.

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MH 1 to MH 2 Scan Graph – 120 to 240 Ft.

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Denvale Dr. Storm Sewer Crossing

3rd Largest Defect in Pipe,

Located Directly Beneath Storm Sewer Crossing

Smoke Visible from Storm Catch Basin

During Sanitary Sewer Smoke

Testing

View of Sanitary Sewer at Location – No CCTV Callout

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MH 1 to MH 2 Defect Chart

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Estimated Infiltration

Flow: 4.7 GPM

240’ (CCTV)

6’

(ES)

Estimated Infiltration

Flow: 1.79 GPM

130’ (CCTV)

116’ (ES)

Sample CCTV Snapshots Overlaid with Electro Scan Readings

CCTV Callout: NONE

CCTV Callout: NONE 12

1

2

1

Sag at Joint

¼ of Pipe Unobservable due to Water

Level

Estimated Infiltration

Flow: 0.57 GPM

115’ (CCTV)

131’ (ES)

Estimated Infiltration

Flow: 1.40 GPM

50’ (CCTV)

195’ (ES)

Sample CCTV Snapshots Overlaid with Electro Scan Readings

CCTV Callout: NONE

CCTV Callout: NONE 13

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Sag at Joint

Sag at Joint

MH 1 to MH 2 Summary - Findings & Conclusions

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MH 3 to MH 4 2

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MH 3 to MH 4 Electro Scan Demo – Gilbert St. Alley

• 8” VCP sanitary sewer, laid at minor grade, with a light flow. Pipe length was approximately 250 ft. Pipe had PVC spot repairs performed in the past due to collapses, and was scheduled for CIPP lining

• Objective: Determine if Electro Scan can identify and quantify any defects in the pipe that could contribute to infiltration.

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2

MH 4

End of Scan

(Downstream)

MH 3 to MH 4 Electro Scan Demo Site – Gilbert St. Alley

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MH 3

Start of Scan

(Upstream)

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MH 3 to MH 4

Total Defect Flow (GPM): 81.93 18

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MH 3 to MH 4 Scan Graph – 0 to 120 Ft.

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PVC Spot Repair

(see pg 24)

MH 3 to MH 4 Scan Graph – 120 to 250 Ft.

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PVC Spot Repair

(see pg 25)

MH 3 to MH 4 Defect Chart

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MH 3 to MH 4 Defect Chart Cont’d

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MH 3 to MH 4 Defect Chart Cont’d

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Estimated Infiltration

Flow: 4.21 GPM

15.4’ (CCTV)

15’ (ES)

Estimated Infiltration

Flow: 0.25 GPM

92’ (CCTV)

92’ (ES)

Sample CCTV Snapshots Overlaid with Electro Scan Readings

CCTV Callout: NONE

CCTV Callout: Pipe is Collapsed 24

1

2

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<PVC Spot Repair Made Since CCTV Inspection>

No Defect (Successful

Repair)

Estimated Infiltration

Flow: 1.91 GPM

118.5’ (CCTV)

118’ (ES)

Estimated Infiltration

Flow: 0.00 GPM

158.2’ (CCTV)

158’ (ES)

Sample CCTV Snapshots Overlaid with Electro Scan Readings

CCTV Callout: NONE

CCTV Callout: Roots 25

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4

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<PVC Spot Repair Made Since CCTV Inspection>

No Defect (Successful

Repair)

Estimated Infiltration

Flow: 3.30 GPM

219.7’ (CCTV)

219’ (ES)

Estimated Infiltration

Flow: 0.91 GPM

230.5’ (CCTV)

229’ (ES)

Sample CCTV Snapshots Overlaid with Electro Scan Readings

CCTV Callout: NONE

CCTV Callout: NONE 26

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MH 3 to MH 4 Summary

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• Electro Scan identified 107 locations of potential infiltration throughout the 493 feet length of the two (2) pipes • Total Estimated Leakage of the two (2) pipes inspected represents 93.4 gallons per minute, or over 134,450 GPD, ±40% accuracy,

assuming a 1 foot head..

• Average estimated flow thru each defect is 0.87 gallons per minute (1,250 GPD), occurring approximately every 4.6 feet. • The CCTV inspection identified only a small fraction of the defects within the almost 500 feet of pipe that could have potentially

contributed to infiltration. While a few leaks were “visible” during the time of inspection, some locations were identified with “infiltration” when there was no active infiltration present..

The quantity of potential infiltration on these particular pipes should serve as an example of how Electro Scan is able to objectively locate and measure defects to help make better rehabilitation decisions. Quantitative data, like the data provided by Electro Scan, should be used to either determine the most efficient and cost-effective rehabilitation method or to determine which pipes warrant further investigation and inspection. The pipe in the alley off Gilbert St (Scan 2) has defects spread throughout its entire length, at almost every other joint (except for

the two short PVC spot repairs), indicating that whatever rehabilitation method that is chosen should include the entire pipe. However, it would have to be compared, quantitatively, to the rest of the pipes in the system to determine its priority in a rehab plan. It is Electro Scan’s understanding that this pipe is slated for CIPP lining. As mentioned during the demonstration, in addition to helping to prioritize rehabilitation plans, Electro Scan is able (per ASTM 2550-13) to certify new construction and rehabilitation. With these pipes being scheduled to possibly be lined with a cured-in-place pipelining method, it is recommended that post-lining certification be completed using Electro Scan.

The pipe on Denvale Dr. (Scan 1) is a different situation. That pipe has three (3) defects that contribute almost 70% of the total possible infiltration for the entire pipe. One of these three defects is located directly beneath a storm sewer crossing. This sizable defect would explain why smoke was observed coming from the storm sewer catch basin during sanitary sewer smoke testing.

Both these pipes are great examples of how by utilizing all technologies available, rehabilitation budgets can be maximized, and infiltration removed from the system most effectively. 28

Findings and Summary

• Identify and measure all sources of infiltration from cracks, bad joints, and defective service connections,

• Rank & prioritize sewer mains and laterals that should be repaired, relined, or renewed,

• Integrate with hydraulic modeling programs to re-calibrate model assumptions based on its estimated gallons per minute (GPM) of flow from defects,

• Certify point repairs, relining, and new construction (i.e. citing ASTM F2550 as part of any published work specification) to ensure that projects performed by third-party contractors are delivered without defects or leaks, prior to Acceptance.

As demonstrated during the presentations in Danville, Electro Scan does not replace CCTV; however, it does confirm the limited use of television inspection. While visual inspection, aided by pan & tilt and 360o panorama capabilities, is recommended to identify alignment problems, cross bores, sags, fats, oils and grease, construction debris, and protruding service connections, television inspection is not recommended to identify sources of infiltration or exfiltration or as final Acceptance of point repairs, relining, or new construction projects.

Recommended use of Electro Scan include the ability to:

Originally approved in 2006, ASTM F2550 was recently

modified to expand its use to include ‘testing and

certification of pipe repairs, renewal, and new

construction.’ The revised standard was approved

October 1, 2013, by unanimous vote of Committee F36, for

renewal for a five-year extension.

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Conclusions

Top 10 Things To Know About Electro Scan

1. What is Electro Scan? 2. What Does It Tell Me (That We Don’t Already Know)? 3. How Does It Work In The Field 4. What Are The Key Components of Electro Scan? 5. How Does It Calculate GPM for Each Defect? 6. How is My Data Managed? 7. What Industry Standard Covers Electro Scan? 8. What Textbooks or Manuals? 9. Who is Backing Electro Scan? 10. What Major Awards Has Electro Scan Won?

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B. How Does It Work? Electro Scan is designed to automatically assess

non-conductive pipes (e.g. asbestos concrete, brick, clay, cement, plastic, reinforced concrete, etc.), where no electrical current should ever be able to “leak” or escape into the ground from inside the pipe – unless, of course, there is a crack or break in a pipe. Electro Scan’s technology utilizes a low voltage/high frequency patent-pending process to automatically find & measure defects not commonly detected by closed-circuit television (CCTV) cameras or acoustical devices. Using its international patent-pending technology that measures the variation of electrical current inside pipes, Electro Scan automatically locates and measures potential leaks in gallons per minute.

A. What Does Electro Scan Do, That CCTV Cannot? Answer: Find sources of

infiltration and cracks. Infiltration is a key factor causing Sanitary Sewer Overflows (SSOs) and Combined Sewer Overflows (CSO) caused by cracks & defects found in manholes, sewer mains, service connections, and laterals. Given the limitation of CCTV – i.e. not able to visually find leaks -- Electro Scan automatically finds , locates, and measures (i.e. in gallons per minute) the amount of infiltration (i.e. in gallons per minute) caused by defects. Electro Scan can also certify newly installed, recently repaired and rehabilitated pipe lining.

C. Who Has Endorsed or Used Electro Scan? Electro Scan has

undergone numerous U.S. EPA studies and found superior to CCTV in finding the location and quantification of defects that cause leaks. Electro Scan is the only company with products in compliance with ASTM Standard F2550-13, just approved for another five years by ASTM Committee F36. Winning international acceptance, Electro Scan has recorded nearly 1 million feet of scans in the U.S., England, Japan, Australia, and New Zealand, and represents the next generation in defect location and certification of pipeline repairs & rehabilitation, able to work in wet weather and dry weather conditions.

Electric “Spikes” Show Defect Locations,

Intensity & Estimated

Gallons per Minute.

1. What is Electro Scan?

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2. What Does It Tell Me*?

* That We Don’t Already Know?

Estimated Infiltration

Flow: 5.2 GPM

Finds Defects Missed By CCTV

A. For Existing Mains & Laterals

Finds All Post-Rehab Defects

B. For Post-Rehab, CIPP & Points Repairs

87 Large Defects Total Estimated GPM 226

1 Large Defect No PACP Quantification

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3. How Does It Work In The Field?

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0 100 150 200 250 300

DISTANCE

EL

EC

TR

IC C

UR

RE

NT

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Longitudinal

Crack

Radial

Crack

Defective Connection

Connection

OK

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20

30

100 150 200 250 300

DISTANCE

EL

EC

TR

IC C

UR

RE

NT

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Electro Scan Probe and Funnel Plug pulled by Jet Truck at the rate of 45-60ft/min.

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Defective

Connection

4. What Are The Key Components? TV Truck - Field Application

TV Truck - Operator’s Console

Cloud Application

TV Truck – Scan Summary

Probe Funnel Plugs

Mobile Wi-Fi

Electro Scan Patch Panel and Data Transfer

Grounding Reel & Rod Electro Scan

CCTV Switchover

Probe Calibrator

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While ‘Large Current Readings over a Large Area’ often result in the largest estimated GPM or Defect Flow, frequently the largest estimated GPMs may be caused by smaller current readings over larger areas (Right). From 12,000 – 20,000 data points may be collected for an average 300 ft sewer main with Electro Scan representing the first automated tool to identify & measure leaks to the closed 1 centimeter or 0.4 inch.

Electro Scan’s standard Graph displays the Maximum Defect Current and Lengths (i.e. from and to start and end points of defects), with its Critical Sewers® cloud application providing an estimated Gallon per Minute (Defect Flow) based on the Defect Area and Electric Current sustained over that Area.

(Above) Sample processed data.

5. How Does It Calculate GPM?

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6. How Does It Manage My Data?

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All Data Was Uploaded And Immediately Available on Electro Scan’s Cloud Application.

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7. What Industry Standard Exists?

Originally approved in 2006, ASTM F2550 was recently modified to expand its use to include ‘testing and certification of pipe repairs, renewal, and new construction.’ The revised standard was approved October 1, 2013, by unanimous vote of Committee F36, for renewal for a five-year extension.

ASTM F2550-13

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8. What Textbooks or Manuals? “Electro Scan has proved

it belongs in our new edition by finding leaks

that CCTV can’t and renewing their ASTM

Standard*.”

Coming… October 2014 7th Edition

Kenneth Kerri, Ph.D.

Over 80,000 Copies Sold

Coming October 2014

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A. Best Innovative Technology, WEF

B. Best Innovative

Product, No-Dig NASTT

D. Best Clean Tech Company

C. Best Water & Sewer Company

9. What Major Awards Has It Won?

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10. Who Is Backing Electro Scan? Experience Expertise in business start-up, growth, and

mergers & acquisitions. Principal investor in Electro Scan Inc. Co-holder of numerous patent-pending filings,

trademarks, and trade names. Leadership, business counseling, and

turnaround management. Former Director & CEO of Hansen Information

Technologies. Sold to Infor Global $100 million. Electro Scan Company Awards Finalist, Europe’s GreenTec Award for Water &

Sewage (Announced May 2014) The New Economy Clean Tech Award for Water

& Wastewater Solutions, 2013 PURE Award for Innovation, South West Water,

UK, 2013 WEF Innovative Technology Award, 2013 Sierra Nevada Innovation Challenge Clean Tech

Award, 2013 SacAddy Award Best Marketing Campaign 2013 NASTT/No-Dig Joseph L. Abbott Jr., Award for

Best Product Innovation, 2013

Major Affiliations AWWA, NASSCO, NASTT, WEF, AOPA Chairman, ASTM Committee F36.20, Inspection and Renewal of Water and Wastewater Infrastructure (Feb 2014) Education MBA, UCLA, 1982 BS, U.C. Berkeley, 1978

About Chuck Hansen Chuck Hansen, age 57, is a Public Works and IT veteran, implementing some of the largest Asset Management, Building Permit, and Utility Billing applications for over 1,000 water, sewer, roadway, and railway clients throughout the world. When Chuck sold his software company in 2007, cumulative Hansen client databases held over 1 million closed-circuit television (CCTV) inspection reports, including over 6 million pipeline defects. In 1990, working with the City of Houston Wasteload Control Branch, Chuck co-developed the first national CCTV standard, used by +250 TV inspection trucks to conduct a comprehensive critical sewers database in response to a Region VI EPA consent decree. Chuck spearheaded development of the first asset-specific accounting system in response to new international financial standards in Australia and New Zealand, adopted by all local councils and utilities in New Zealand. Later, he led his international software programming team to design, development, and deploy, integrated customer service, billing, building permit, and property tax accounting systems. Partnering with San Francisco-based private equity firm Golden Gate Capital, Chuck doubled the size of his company over two-years through acquisitions, new web-based products, and international expansion, exiting the business he started with his father and older brother in 2007.

Chuck lives in Sacramento, California with his wife, Deborah, a civil engineer, his three daughters and grown son, nearby.

Chuck Hansen

1983-2006

2006-2007

2011-Present

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References 1. US EPA Sewer Electro Scan Field Demonstration Revisited, Special Reprint from 2012 WEFTEC Conference Proceedings

http://www.electroscan.com/wp-content/uploads/2012/11/WEFTEC_US-EPA-Electro-Scan-Demonstration-Project.pdf

2. ASTM Standard F2550-13

http://www.electroscan.com/wp-content/uploads/2012/01/2006-02-01-Electro-Scan_ASTM-Standard-F2550-06.pdf

3. Electro Scanning Technology Adds Another Layer of Inspection, Trenchless Technology Magazine, Published February 2013

http://www.electroscan.com/wp-content/uploads/2013/03/Trenchless-Technology-Mag_ES-Tech-Adds-Another-Layer-of-Inspection.pdf

4. Electro Scan Technology Test Drive, Municipal Sewer &Water Magazine, December 2012

http://www.electroscan.com/wp-content/uploads/2012/11/Electro-Scan_Technology-Test-Drive.pdf

5. Electro Scan Newspapers

http://www.electroscan.com/newspapers/

6. Municipal Sewer and Water Magazine

http://www.mswmag.com/

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1745 Markston Road Sacramento, California 95825-4026

Email: info@electroscan.com Office: 916-779-0660 | Fax: 916-779-0661

www.ElectroScan.com

Facebook www.facebook.com/Electro-Scan-Inc/214255938644317

YouTube www.youtube.com/SewerElectroScan

Twitter @electroscan

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