Incidenthistorical
PHMSA FIR, Dominion Transmission Inc, 2008-10-23
Failure Report- Dominion Transmission Inc 10/23/08
Current as of 2008-10-23 Government source
RegulusPipeline researchRegulusPipeline researchPHMSA FIR, Dominion Transmission Inc, 2008-10-23
Page 1Official PDFPipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Pipeline System: H-197 Operator: Dominion Transmission Location: Taylor Ridge, Marshall County Date of Occurrence: October 23, 2008 Medium Released: Natural Gas Quantity: Not Provided PHMSA Arrival Time & Date: January 9, 2009 Total Damages $ 13,433 Investigation Responsibility: X State PHMSA NTSB Other Company Reported Apparent Cause: Corrosion X Excavation Natural Forces Incorrect Operation Other Outside Force Damage Material and/or Welds Equipment and Operations Other Rupture No Leak Yes Fire No Explosion No Evacuation No Number of Persons NA Area NA Narrative Summary Short summary of the Incident/Accident which will give interested persons sufficient information to make them aware of the basic scenario and facts. DTI submitted a nullification letter to the Information Officer which indicated this event did NOT meet the criteria of a REPORTABLE INCIDENT. This event was investigated by the WV PSC at the request of the RD, Eastern Region. The WV PSC investigation was deferred with the knowledge that this event would not meet the threshold criteria to be classified as an incident. There was no fire, explosion, evacuation, or injuries. While constructing a new cross-over connection between existing transmission lines H-197 and TL-558 the backhoe operator snagged the top of an abandoned tap on H-197 about 3” below grade. The existence of the tap was unknown to the construction crew and was not shown on the existing plant drawings. The “original” drawing (5-29-1958) did not show the existence of the 2” tap, but did note modifications done to the yard piping in 1990. The 2” tap is believed to be a pre-code component that pre-dates the drawing. The tap was damaged sufficiently to cause a leak, but the gas did not ignite. The dig-in occurred with the line in service and operating at 250 psig. Pressure was reduced to 50 psig to allow the line to be repaired. The dig-in occurred at 10:10 AM and repairs were completed at 3:30 PM. Crews left the site at 6:30 PM, October 23. Region/State: Eastern / West Virginia Reviewed by: David A. Hippchen Principal Investigator: Edwin D. Clarkson Title: Senior Engineer, Gas Pipeline Safety Section Date: May 28, 2009 Date: May 28, 2009 WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 1 - of 9#
Page 2Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Failure Location & Response Location (City, Township, Range, County/Parish): (Acquire Map) Taylor Ridge, Franklin District, Marshall County Map – Appendix 13 Address or M.P. on Pipeline: (1) Type of Area (Rural, City): (1) Rural 39.83884 N 80.77055 W Date: October 23, 2008 Time of Failure: 10:10 AM Time Detected: 10:10 AM Time Located: 10:10 AM How Located: Dig-in during excavation activities NRC Report #: (Attach Report) Time Reported to NRC: Reported by: 888046 4:12 PM Jim Shafer, Dominion Transmission Type of Pipeline: Gas Distribution Gas Transmission Hazardous Liquid LNG LP X Interstate Gas Interstate Liquid LNG Facility Municipal Intrastate Gas Intrastate Liquid Public Utility Jurisdictional Gas Gathering Offshore Liquid Master Meter Offshore Gas Jurisdictional Liquid Gathering Offshore Gas - High H2S CO2 Pipeline Configuration (Regulator Station, Pump Station, Pipeline, etc.): Existing regulator station on piping run between pipelines H-197 and TL-558. Operator was installing new crossover between these two pipelines. Pipeline facility that damaged during excavation was a 2” nipple and valve on line H-197. Operator/Owner Information Owner: Dominion Transmission, Inc. Operator: Dominion Transmission, Inc. Address: Address: 445 West Main Street 445 West Main Street Clarksburg, WV 26301 Clarksburg, WV 26301 Company Official: Jim Shafer Company Official: Jim Shafer Phone No.: 304-627-3430 Fax No.: Not Avail. Phone No. 304-627-3430 Fax No. Not Avail. Drug and Alcohol Testing Program Contacts X N/A Drug Program Contact & Phone: Alcohol Program Contact & Phone: Damages Product/Gas Loss or Spill(2) Not Available Estimated Property Damage $ Not Available Amount Recovered Associated Damages(3) $ NA 1 Photo documentation 2 Initial volume lost or spilled 3 Including cleanup cost WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 2 - of 9#
Page 3Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Damages Estimated Amount $ 13,433 Description of Property Damage: Damaged valve and nipple Customers out of Service: X Yes No Number: 1 Suppliers out of Service: Yes X No Number: Fatalities and Injuries Fatalities: Yes X No Company: Contractor: Public: Injuries - Hospitalization: Yes X No Company: Contractor: Public: Injuries - Non-Hospitalization: Yes X No Company: Contractor: Public: Total Injuries (including Non-Hospitalization): Company: Contractor: Public: Yrs. Yrs w/ Comp. Exp. Name Job Function Type of Injury Drug/Alcohol Testing X N/A Were all employees that could have contributed to the incident, post-accident tested within the 2 hour time frame for alcohol or the 32 hour time frame for all other drugs? Yes No Results Job Function Test Date & Time Location Type of Drug Pos Neg System Description WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 3 - of 9#
Page 4Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 System Description Describe the Operator's System: The failure occurred by dig-in to a 2” nipple and valve (abandoned tap) on pipeline H-197. Integrity Test After Failure N/A Pressure Test Conducted in place? (Conducted on Failed Components or Associated Piping): X Yes No If NO, Tested after removal? Yes No Method: Line operating pressure and leak test. Describe any failures during the test. None. Outside Force Damage X N/A Responsible Party: Telephone No.: Address: Work Being Performed: Equipment Involved: (1) Called One Call System? Yes No One Call Name: One Call Report # (4) Notice Date: Time: Response Date: Time: Details of Response: Was Location Marked According to Procedures? Yes No Pipeline Marking Type: (1) Location: (1) State Law Damage Prevention Program Followed? Yes No No State Law Notice Required: Yes No Response Required: Yes No Was Operator Member of State One Call? Yes No Was Operator on Site? Yes No Did a deficiency in the Public Awareness Program contribute to the accident? Yes No Is OSHA Notification Required? Yes No 4 Attach copy of one-call report WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 4 - of 9#
Page 5Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Weather Conditions X N/A Temperature: Wind (Direction & Speed): Climate (Snow, Rain): Humidity: Was Incident preceded by a rapid weather change? Yes No Weather Conditions Prior to Incident (Cloud Cover, Ceiling Heights, Snow, Rain, Fog): Class Location/High Consequence Area N/A Class Location: 1 X 2 3 4 Determination: HCA Area? Yes X No N/A Determination: Odorization Required? Yes No X N/A Maps & Records N/A Are Maps and Records Current? (5) Yes X No Comments: The “original” drawing (5-29-1958) did not show the existence of the 2” tap, but did note modifications done to the yard piping in 1990. The 2” tap is believed to be a pre-code component that pre-dates the drawing. Operator/Contractor Error N/A Name: Don Pethel Job Function: Equipment Operator Title: [Not available] Years of Experience: [Not available] Training (Type of Training, Background): Company Internal Training Was the person “Operator Qualified” as applicable to a precursor abnormal operating condition? X Yes No N/A Was qualified individual suspended from performing covered task X Yes No N/A Type of Error (Inadvertent Operation of a Valve): Did not anticipate finding tap on line at less than standard cover. Procedures that are required: See Work Procedure Number OQ-040-GL – Appendix 10 Actions that were taken: Hand digging to expose pipe; removing cover with mechanized equipment. Pre-Job Meeting (Construction, Maintenance, Blow Down, Purging, Isolation): NA Prevention of Accidental Ignition (Tag & Lock Out, Hot Weld Permit): NA Procedures conducted for Accidental Ignition: NA Was a Company Inspector on the Job? X Yes No Was an Inspection conducted on this portion of the job? X Yes No Additional Actions (Contributing factors may include number of hours at work prior to failure or time of day work being conducted): NA 5 Obtain copies of maps and records WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 5 - of 9#
Page 6Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Maps & Records N/A Are Maps and Records Current? (5) Yes X No Training Procedures: NA Operation Procedures: NA Controller Activities: NA Name Title Years Experience Hours on Duty Prior to Failure Shift Alarm Parameters: NA High/Low Pressure Shutdown: NA Flow Rate: NA Procedures for Clearing Alarms: NA Type of Alarm: NA Company Response Procedures for Abnormal Operations: NA Over/Short Line Balance Procedures: NA Frequency of Over/Short Line Balance: NA Additional Actions: NA Additional Actions Taken by the Operator N/A Make notes regarding the emergency and Failure Investigation Procedures (Pressure reduction, Reinforced Squeeze Off, Clean Up, Use of Evacuators, Line Purging, closing Additional Valves, Double Block and Bleed, Continue Operating downstream Pumps): WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 6 - of 9#
Page 7Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Additional Actions Taken by the Operator N/A Dominion revoked the OQ credentials for the two individuals directly involved with the dig-in: Don Pethel and Jesse Ramsey. These individuals were to be re-qualified for subsequent work. Dominion revised the equipment drawing for XS-2118 to show the presence of the abandoned 2” tap on H-197 (2” 600# BV, screw [threaded connection], 12’ from new crossover). (Appendix 2 – Appendix 3) Dominion placed a field marker on site to identify the abandoned 2” tap location. Dominion did not place tub enclosure around abandoned facility, however. Dominion will emphasize appropriate marking in the field and adequate as-built drawings during employee training. WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 7 - of 9#
Page 8Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Photo Documentation (1) Overall Area from best possible view. Pictures from the four points of the compass. Failed Component, Operator Action, Damages in Area, Address Markings, etc. Photo No. Photo No. Description (Appendix 4) Description 1 Construction Site Close-up 2 Construction Site General 3 Damaged Valve and Nipple 4 Post-Incident General View (1) 5 Close-up of Marker 6 Post-Incident General View (2) 7 Post-Incident General View (3) Camera Type: Unknown Make of Digital by Dominion Transmission Persons Interviewed Name Title Phone Number Shawn Miller Compliance Engineer 304-627-3404 Joseph Pernell Corrosion Tech 304-266-2742 William Everitt Operations Supervisor 304-627-3098 Jeremy Smith Operations Superintendent 304-269-6933 WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 8 - of 9#
Page 9Pipeline Failure Investigation Report OPID 2714; Unit ID 3261; NRC #N/A; Activity #127584 Event Log Sequence of events prior, during, and after the incident by time. (Consider the events of all parties involved in the incident, Fire Department and Police reports, Operator Logs and other government agencies.) Time / Date Event See DTI Accident Investigation Appendix 1 Failure Investigation Documentation Log Operator: Dominion Transmission, Inc. Unit #: 2714 CPF #: NA Date: 10/23/08 Appendix Documentation Description Date FOIA – Posted on Web Number Received Yes No 1 DTI Accident Investigation 1/9/09 NA 2 XS-2118 Original Drawing 1/9/09 NA 3 XS-2118 Current Drawing 1/9/09 NA 4 Photographs (7) 6/12/09 NA 5 TFIR 36970 1/9/09 NA 6 TFIR 36971 1/9/09 NA 7 TFIR 36976 1/9/09 NA 8 TFIR 36986 1/9/09 NA 9 TFIR 37040 1/9/09 NA 10 Work Procedure Number OQ-040-GL 1/9/09 NA 11 Miss Utility Ticket #2380341 1/9/09 NA 12 Miss Utility Ticket #2900038 1/9/09 NA 13 Incident Location Map 11/8/2010 NA WV_DAH_Dominion_2714_Line H-197_3261_I03_10232008_127584.docx Page - 9 - of 9#
Page 10Appendix 1 - DTI Accident Investigation -127584.pdf Page 1 of 6#
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Page 16Appendix 2 - XS-2118 Current Drawing -127584.pdf Page 1 of 2#
Page 17Appendix 2 - XS-2118 Current Drawing -127584.pdf Page 2 of 2#
Page 18Appendix 3 - XS-2118 Original Drawing -127584.pdf Page 1 of 1#
Page 19Appendix 4 - Photographs -127584.pdf Photo 1 ‐ Construction Site Closeup Page 1 of 7#
Page 20Appendix 4 - Photographs -127584.pdf Photo 2 ‐Construction Site General Page 2 of 7#
Page 21Appendix 4 - Photographs -127584.pdf Photo 3 ‐ Damaged Valve and Nipple Page 3 of 7#
Page 22Appendix 4 - Photographs -127584.pdf Photo 4 – Post Incident General View Page 4 of 7#
Page 23Appendix 4 - Photographs -127584.pdf Photo 5 – Close up of Marker Page 5 of 7#
Page 24Appendix 4 - Photographs -127584.pdf Photo 6 – Post Incident General View (2) Page 6 of 7#
Page 25Appendix 4 - Photographs -127584.pdf Photo 6 – Post Incident General View (3) Page 7 of 7#
Page 26Appendix 5 - TFIR 36970 -127584.pdf Page 1 of 3#
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Page 28Appendix 5 - TFIR 36970 -127584.pdf Page 3 of 3#
Page 29Appendix 6 - TFIR 36971 -127584.pdf Page 1 of 3#
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Page 32Appendix 7 - TFIR 36976 -127584.pdf Page 1 of 3#
Page 33Appendix 7 - TFIR 36976 -127584.pdf Page 2 of 3#
Page 34Appendix 7 - TFIR 36976 -127584.pdf Page 3 of 3#
Page 35Appendix 8 - TFIR 36986 -127584.pdf Page 1 of 3#
Page 36Appendix 8 - TFIR 36986 -127584.pdf Page 2 of 3#
Page 37Appendix 8 - TFIR 36986 -127584.pdf Page 3 of 3#
Page 38Appendix 9 - TFIR 37040 -127584.pdf Page 1 of 3#
Page 39Appendix 9 - TFIR 37040 -127584.pdf Page 2 of 3#
Page 40Appendix 9 - TFIR 37040 -127584.pdf Page 3 of 3#
Page 41Appendix 10 - OQ-040-GL -127584.pdf Page 1 of 5#
Page 42Appendix 10 - OQ-040-GL -127584.pdf Page 2 of 5#
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Page 45Appendix 10 - OQ-040-GL -127584.pdf Page 5 of 5#
Page 46Appendix 11 - MUWV 2380341 -127584.pdf Page 1 of 1#
Page 47Appendix 12 - MUWV 2900038 -127584.pdf Page 1 of 1#
Page 48Appendix 13 - Incident Location -127584.pdf Incident Location 39.83884 N 80.77055 W Page 1 of 2#
Page 49Appendix 13 - Incident Location -127584.pdf Page 2 of 2#
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