Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-12-05 — TX
Operator
Wtg Gas Transmission Company
Cause
Corrosion Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$10,000
Incident datetime
2012-12-05 18:00
Report number
Location
TX
Narrative
During preparation for an 8 hour integrity managment pressure test (required by the state of texas) scheduled for december 6, 2012, wtg employees bart bean, chris baltzell, and ray reed were in the process of increasing the pressure profile of the snyder 16" pipeline from the martin county #3 compressor station to the el paso energy tap west of the town of goldsmith, texas. During the morning of december 5th, the pipeline was configured for test and notification was made to the general public within 660' of the pipeline. In addition to the public, the city officials from goldsmith were notified of the pending test. The plan included isolation of the test segment and raising the pressure profile of the pipeline. The plan was to raise pressure within the pipeline to a point just below 610 psig (maop) on the day prior to test. Compression at martin county #3 was the pressure source. The data acquisition system was being monitored at martin county #3, at approximately 17:45, the pressure at a delivery point on the west end of the system was 499 psia. The next cycle of the data at approximately 18:00, pressure at the same point had decreased to 450 psia. Immediately martin county 3 compression was isolated from the snyder 16" pipeline and during this process chris baltzell received a call at 18:02 from an employee with the city of goldsmith communicating blowing gas west of town. The following isolation plan was developed and immediately enacted: chris baltzell to sight of blowing gas ray reed to block valve #1 to isolate (closest to bv to scene) bart bean to re-configure martin county #3, isolate block valve #4, organized emergency response, contacted crews to intiate repairs and then to scene of blowing gas during travel to scene, chris was informed the blowing gas had been ignited; dcp facilities were involved and emergency responders were in-route to scene. Travel distance to scene from martin county #3 was approximately 43 miles. Order of events at scene: chris on site at 18:45 ray at block valve #1 at 18:40 and isolated at 18:45 ray on site at 18:55 fire burned out at 19:15 bart on site at 19:30 contract personal and equipment on standby at scene 20:00
Detailed record list
Report Received Date
2012-12-28 00:00:00
Iyear
2012
Report Number
20120128
Supplemental Number
16360
Report Type
Supplemental
Operator Id
31968
Name
Wtg Gas Transmission Company
Operator Street Address
303 Veterans Airpark Lane
Operator City Name
Midland
Operator State Abbreviation
TX
Operator Postal Code
79705
Local Datetime
2012-12-05 18:00:00
Location Latitude
31.977366
Location Longitude
-102.631126
Nrc Rpt Num
1032446
Nrc Rpt Datetime
2012-12-05 22:40:00
Commodity Released Type
Natural Gas
Unintentional Release
5212
Intentional Release
704
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2012-12-05 18:47:00
Restart Datetime
2012-12-06 18:00:00
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-12-05 18:00:00
On Site Datetime
2012-12-05 18:40:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
79741
Onshore City Name
Goldsmith
Onshore County Name
Ector
Designated Location
Milepost
Designated Name
Milepost
Pipe Fac Name
S**********@ **************
Segment Name
Pipeline 1122
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
35
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
16
Pipe Wall Thickness
0.25
Pipe Smys
42000
Pipe Specification
Api 5l
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Youngston Steel And Tube
Pipe Coating Type
Coal Tar
Installation Year
1953
Manufactured Year
1952
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Longitudinal
Rupture Length
42
Rupture Width
15.5
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
306
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
400000
Est Cost Unintentional Release
20848
Est Cost Intentional Release
2816
Est Cost Prop Damage
10000
Est Cost Emergency
20000
Est Cost Other
0
Prpty
453664
Accident Psig
480
Mop Psig
610
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
46844
Internal Inspection Ind
No
Unsuitable Mainline Ind
Yes
Other Restrictions Ind
Yes
Operation Complications Ind
Yes
Low Flow Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
No Alternate Supply For Goldsmith
Pipeline Function
Transmission System
Scada In Place Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1953
Shielding Evident
No
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Cp Annual Survey Year
2011
Prior Damage
No
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
R** R***
Preparer Title
Directory Of Integrity Management
Preparer Email
R****@w*********.com
Preparer Telephone
6202713793
Preparer Fax
8063540797
Authorizer Name
R****** H*******
Authorizer Title
Vp Of Operations
Authorizer Telephone
4326824349
Authorizer Email
R********@w***********.com
Narrative
During preparation for an 8 hour integrity managment pressure test (required by the state of texas) scheduled for december 6, 2012, wtg employees bart bean, chris baltzell, and ray reed were in the process of increasing the pressure profile of the snyder 16" pipeline from the martin county #3 compressor station to the el paso energy tap west of the town of goldsmith, texas. During the morning of december 5th, the pipeline was configured for test and notification was made to the general public within 660' of the pipeline. In addition to the public, the city officials from goldsmith were notified of the pending test. The plan included isolation of the test segment and raising the pressure profile of the pipeline. The plan was to raise pressure within the pipeline to a point just below 610 psig (maop) on the day prior to test. Compression at martin county #3 was the pressure source. The data acquisition system was being monitored at martin county #3, at approximately 17:45, the pressure at a delivery point on the west end of the system was 499 psia. The next cycle of the data at approximately 18:00, pressure at the same point had decreased to 450 psia. Immediately martin county 3 compression was isolated from the snyder 16" pipeline and during this process chris baltzell received a call at 18:02 from an employee with the city of goldsmith communicating blowing gas west of town. The following isolation plan was developed and immediately enacted: chris baltzell to sight of blowing gas ray reed to block valve #1 to isolate (closest to bv to scene) bart bean to re-configure martin county #3, isolate block valve #4, organized emergency response, contacted crews to intiate repairs and then to scene of blowing gas during travel to scene, chris was informed the blowing gas had been ignited; dcp facilities were involved and emergency responders were in-route to scene. Travel distance to scene from martin county #3 was approximately 43 miles. Order of events at scene: chris on site at 18:45 ray at block valve #1 at 18:40 and isolated at 18:45 ray on site at 18:55 fire burned out at 19:15 bart on site at 19:30 contract personal and equipment on standby at scene 20:00
| Report Received Date | 2012-12-28 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120128 |
| Supplemental Number | 16360 |
| Report Type | Supplemental |
| Operator Id | 31968 PHMSA Enforcement |
| Name | Wtg Gas Transmission Company |
| Operator Street Address | 303 Veterans Airpark Lane |
| Operator City Name | Midland |
| Operator State Abbreviation | TX |
| Operator Postal Code | 79705 |
| Local Datetime | 2012-12-05 18:00:00 |
| Location Latitude | 31.977366 Google Maps OpenStreetMap |
| Location Longitude | -102.631126 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1032446 NRC Report How to search |
| Nrc Rpt Datetime | 2012-12-05 22:40:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 5212 |
| Intentional Release | 704 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2012-12-05 18:47:00 |
| Restart Datetime | 2012-12-06 18:00:00 |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-12-05 18:00:00 |
| On Site Datetime | 2012-12-05 18:40:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79741 |
| Onshore City Name | Goldsmith |
| Onshore County Name | Ector |
| Designated Location | Milepost |
| Designated Name | Milepost |
| Pipe Fac Name | S**********@ ************** |
| Segment Name | Pipeline 1122 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 35 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 42000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Youngston Steel And Tube |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1953 |
| Manufactured Year | 1952 |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Longitudinal |
| Rupture Length | 42 |
| Rupture Width | 15.5 |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 306 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 400000 |
| Est Cost Unintentional Release | 20848 |
| Est Cost Intentional Release | 2816 |
| Est Cost Prop Damage | 10000 |
| Est Cost Emergency | 20000 |
| Est Cost Other | 0 |
| Prpty | 453664 |
| Accident Psig | 480 |
| Mop Psig | 610 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 46844 |
| Internal Inspection Ind | No |
| Unsuitable Mainline Ind | Yes |
| Other Restrictions Ind | Yes |
| Operation Complications Ind | Yes |
| Low Flow Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | No Alternate Supply For Goldsmith |
| Pipeline Function | Transmission System |
| Scada In Place Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | Localized Pitting |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1953 |
| Shielding Evident | No |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Cp Annual Survey Year | 2011 |
| Prior Damage | No |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | R** R*** |
| Preparer Title | Directory Of Integrity Management |
| Preparer Email | R****@w*********.com |
| Preparer Telephone | 6202713793 |
| Preparer Fax | 8063540797 |
| Authorizer Name | R****** H******* |
| Authorizer Title | Vp Of Operations |
| Authorizer Telephone | 4326824349 |
| Authorizer Email | R********@w***********.com |
| Narrative | During preparation for an 8 hour integrity managment pressure test (required by the state of texas) scheduled for december 6, 2012, wtg employees bart bean, chris baltzell, and ray reed were in the process of increasing the pressure profile of the snyder 16" pipeline from the martin county #3 compressor station to the el paso energy tap west of the town of goldsmith, texas. During the morning of december 5th, the pipeline was configured for test and notification was made to the general public within 660' of the pipeline. In addition to the public, the city officials from goldsmith were notified of the pending test. The plan included isolation of the test segment and raising the pressure profile of the pipeline. The plan was to raise pressure within the pipeline to a point just below 610 psig (maop) on the day prior to test. Compression at martin county #3 was the pressure source. The data acquisition system was being monitored at martin county #3, at approximately 17:45, the pressure at a delivery point on the west end of the system was 499 psia. The next cycle of the data at approximately 18:00, pressure at the same point had decreased to 450 psia. Immediately martin county 3 compression was isolated from the snyder 16" pipeline and during this process chris baltzell received a call at 18:02 from an employee with the city of goldsmith communicating blowing gas west of town. The following isolation plan was developed and immediately enacted: chris baltzell to sight of blowing gas ray reed to block valve #1 to isolate (closest to bv to scene) bart bean to re-configure martin county #3, isolate block valve #4, organized emergency response, contacted crews to intiate repairs and then to scene of blowing gas during travel to scene, chris was informed the blowing gas had been ignited; dcp facilities were involved and emergency responders were in-route to scene. Travel distance to scene from martin county #3 was approximately 43 miles. Order of events at scene: chris on site at 18:45 ray at block valve #1 at 18:40 and isolated at 18:45 ray on site at 18:55 fire burned out at 19:15 bart on site at 19:30 contract personal and equipment on standby at scene 20:00 |
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