1. Status of Plastic Piping Data Collection Project Western Regional Gas Conference (WRGC) August 21, 2012

2. Background Response to NTSB recommendation To create a national database of in-service performance of plastic piping system components Database administered by AGA on behalf of PPDC Creation and population of database was precondition to DOT not mandating collection 2

3. The government-industry PPDC is formed to develop and maintain a voluntary data collection process that supports the analysis of the frequency and causes of in-service plastic piping material failures Mission 3

4. The PPDC will be composed of 6 stakeholders Each stakeholder will have 2 representatives Our purpose is to improve the knowledge base of the industry and regulatory and address the concerns of the NTSB Decisions are made through consensus Confidentiality of those submitting data Data base access Charter 4

5. Government Members NTSB Representatives (1) NAPSR Representatives (2) NARUC Representatives (2) PHMSA/OPS Representatives (2) Industry Members AGA Member Representatives (2) APGA Member Representatives (2) PPI Member Representatives (2) AGA Observer (1) 14 Members Up to 3 Invited Guests Plastic Piping Database Committee (PPDC) 5

6. The scope of the committee has been expanded to include failures and/or leaks of metal or plastic appurtenances contained within plastic piping systems Immediate third party damages are not collected or evaluated The data are examined by the PPDC at each meeting Plastic Piping Database Committee (PPDC) 6

7. Review the data, at minimum, on a semi- annual basis not to exceed 9 months Jointly agree on areas of focus or concern Issue Status Reports after each meeting Provide resources to aid in identification of products Plastic Piping Database Committee (PPDC) 7

8. The reporting period is monthly, including reports of no failures Reports can be faxed or sent on CD If incomplete or insufficient data are submitted, AGA will contact that person to clarify or to provide adequate data so that the data can be entered into the PPDC database Data Collection Process 8

9. What types of failures and/or leaks are reportable under the PPDC initiative? Only report plastic piping system and appurtenance failures and/or leaks of in- service pipe, fittings or joints (this includes installation errors that fail and/or leak after the pipe is put in service) Frequently Asked Questions 9

10. What if I don’t have any plastic piping system and appurtenance failures and/or leaks during the reporting period? Submit a negative report for each reporting period, stating that no plastic piping system and appurtenance failures and/or leaks have occurred during that reporting period Frequently Asked Questions 10

11. Do I have to submit a separate form for each failure and/or leak data point? Yes, if you use paper forms. Otherwise, you can send AGA a report on a CD that will allow you to consolidate your reporting by entering multiple data points on one form Frequently Asked Questions 11

12. What is the difference between the PPDC and the PHMSA Mechanical Fitting Failure Report? The two reports are separate and independent of each other. PHMSA is only collecting mechanical fitting information. The PPDC is collecting data on all plastic failures and leaks PHMSA’s is mandatory; PPDC is voluntary Frequently Asked Questions 12

13. AGA will collect all data and keep it in a secure database file Operator-specific identifiers are not entered into the database. Only PPDC members or those expressly designated by the PPDC will review the data The data will not be published or available in print Company Anonymity Protections 13

14. Century Utility Products polyethylene (PE) pipe produced from 1970 through 1974 DuPont Aldyl® A low ductile inner wall PE pipe manufactured from 1970 through 1972 PE pipe manufactured from PE 3306 resin such as Swanson, Orangeburg and Yardley DuPont Aldyl® service punch tee with a white Delrin® polyacetal threaded insert Plexco service tee with Celcon® polyacetal cap Areas of Concern 14

15. Plastic Piping Database Committee’s Plastic Pipe Timeline 15

16. Plastic Piping Database Committee’s Plastic Pipe Timeline 16

17. Plastic Piping Database Committee’s Plastic Pipe Timeline 17

18. Status of Participation 188 companies have volunteered to participate (160 in 2000; 165 in 2007) – 107 companies actively submitting data in May 2012 Percent of all installed plastic piping in the U.S. – 66% for plastic main (76% in 2008) – 73% for plastic services (84% in 2008) 18

19. Commitment Those who volunteered to participate committed to regularly reporting to the AGA by submitting either: Data, or Negative reports (no data to submit) As of March 2010 a list of active participants is published as an appendix to the Status Report Anonymity is still protected 19

20. Accuracy and Completeness of Data VERY IMPORTANT Impacts the analysis and conclusions by PPDC Needs full cooperation of participants to help resolve submitted data issues Increasingly important with Distribution Integrity 20

21. Accuracy and Completeness of Data VERY IMPORTANT Manufacturer document available on AGA website Capture the historical plastic materials manufacturer information Designed to be an aid when completing failure reports in order to get more accurate information 21

22. Manufacturers Database Manufacturers of Plastic Piping Products - Pipe NOTE: Operators are required to install materials that meet current requirements Company Material Designation FromTo Size RangeComments AlliedPE 3306/34061965/661972/73 1/2" CTS - 2" IPS Was also a resin producer and supplied the AC ultra high molecular pipe compound to several small pipe extruders including Yardley, Orangeburg, Endot and the Barrett Division of Allied (also an extruder of PVC pipe). Except for Endot, most of these producers/extruders have since gone out of business or have different names today. Pipe was very difficult to fuse. AmstanPE3306 Mid-late 1960s 22

23. Company Material DesignationFromToSize RangeComments Georg Fischer Central Plastics Produced molded fittings for pipe producers PE 2406??Present 1" IPS - 12" IPSSolid Yellow PE 3408??Present 1" IPS - 12" IPSSolid Black CP Chemical Another name for Performance Pipe Manufacturers Database Manufacturers of Plastic Piping Products – Line Fittings NOTE: Operators are required to install materials that meet current requirements 23

24. NOTE: Operators are required to install materials that meet current requirements Company Material DesignationFromToSize RangeComments AMP Dupont Zytel ST-801 1970's, stainless steel and nylon compression fitting. Technology purchased by Metcal in 1990; can be white in appearance. Dupont Zytel ST- 801 Nylon?? 1/2" CTS - 2" IPS Black with Stainless Steel compression ring. Nylon 66 Georg Fischer Central Plastics Electrofusion and heat fusion fittings, transition fittings, meter risers. Manufacturers Database Manufacturers of Plastic Piping Products – Other Fittings 24

25. Company Material DesignationFromToSize RangeComments Georg Fisher Central Plastics DresserNylon1991Present 1/2" CTS - 1-1/4" CTSStyle 475 Curb Valve Rilsan FriatecPE 3408198519952" - 6" IPS Black body with white operating nut; ball valve Manufacturers Database Manufacturers of Plastic Piping Products – Valves NOTE: Operators are required to install materials that meet current requirements 25

26. Manufacturers Database 26

27. The database Contains 11+ years of collected data 100% of two-5 year leak survey cycles Reinforces what is historically known of the failure data points Summarizes areas of concern in the Status Report (available on the AGA website) Summary of Database 27

28. ABS PHMSA 2010 Annual Report Data: 1,296 Miles ABS Main 28

29. ABS Causes 29

30. PHMSA 2010 Annual Report Data: 12,660 Miles PVC Main PVC 30

31. Failure/Leak Cause % of Total PVC Failures Excessive Expansion/Contraction4.37% Excessive External Earth Loading17.90% Installation Error13.54% Squeeze Off0.66% Point Loading5.68% Previous Impact0.44% Unknown15.72% Other5.24% Cap0.66% Not Recorded1.09% Material Defect34.72% Total100.00% PVC Causes 31

32. PE PHMSA 2010 Annual Report Data: 604,981 Miles PE Main 32

33. Failure/Leak Cause % of Total PE Failures Excessive Expansion/Contraction0.54% Excessive External Earth Loading10.56% Installation Error25.60% Squeeze Off1.98% Point Loading6.63% Previous Impact0.25% Unknown16.58% Other24.14% Cap7.87% Not Recorded1.68% Material Defect3.72% Gopher/rodent/worm damage0.44% Total100.00% PE Causes 33

34. Aldyl A PHMSA 2010 Annual Report Data does not separate Aldyl A from other PE types 34

35. Failure/Leak Cause % of Total Failures Excessive Expansion/Contraction0.44% Excessive External Earth Loading13.74% Installation Error26.66% Squeeze Off2.13% Point Loading7.69% Previous Impact0.12% Unknown12.11% Other31.82% Cap1.75% Not Recorded0.61% Material Defect2.86% Gopher/rodent/worm damage0.07% Total100.00% Aldyl A Causes 35

36. For more information, consult AGA’s website at Operations & Engineering/ Plastic Piping Data Collection Initiative http://www.aga.org/Kc/OperationsEngineering /ppdc/Pages/default.aspx Contact:Kate Miller at (202) 824-7342 or kmiller@aga.org Participation 36

37. Regulatory Perspective Enhance safety….. Issuance of advisory bulletins Aid the operator and regulatory agencies in making risk based decisions based on data collected 37

38. Thank you for your support of the Plastic Pipe Database Initiative Questions? 38