Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-08-04 — GA
Operator
Colonial Pipeline Co
Cause
Material Failure Of Pipe Or Weld
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,500
Incident datetime
2015-08-04 06:45
Report number
Location
GA
Narrative
On 8/4/2015 at 06:45 an employee identified an area of stained gravel between the suction and discharge valves for line 2 unit 1. He contacted the lead technician who sent a team to assist with excavating to identify the leak source. At 09:10 they discovered a leak from a piping elbow in the drain system for the suction side of the unit. The unit was shut down by the control center at 09:13 and isolated which stopped the leak. Internal notifications were made and by 09:47 the loop was isolated, drained, and temporary repairs began. The elbow was removed from the drain line and blind flanges were installed. Initial cleanup and excavation of contaminated soil was completed by 16:44. A preliminary visual inspection of the piping elbow found a crack on the underside of the top flange where the girth weld may not have fully penetrated the pipe material. An incident investigation will be conducted and the findings incorporated in the final accident report. Notifications of the release were made to the local office of emergency preparedness for st landry parish and the louisiana spoc. No additional notifications were made since no other reporting criteria were met. Subsequent investigation revealed that the piping elbow was welded incorrectly during initial installation (insufficient weld penetration). A drain system valve attached to that section of piping had been replaced the week prior and that work may have disturbed the elbow enough to cause the weld to fail over the course of the next week. A corrective action is being evaluated to inspect other sections of the drain system for similar issues. Supplemental final includes pipe data related to yield strength and pipe specification not previously reported.
Detailed record list
Report Received Date
2015-09-01 00:00:00
Iyear
2015
Report Number
20150314
Supplemental Number
21315
Report Type
Supplemental Final
Operator Id
2552
Name
Colonial Pipeline Co
Operator Street Address
1000 Lake St.
Operator City Name
Alpharetta
Operator State Abbreviation
GA
Operator Postal Code
30009
Local Datetime
2015-08-04 05:10:00
Location Latitude
30.528648
Location Longitude
-91.746802
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Diesel, Fuel Oil, Kerosene, Jet Fuel
Unintentional Release Bbls
3.3
Recovered Bbls
3.3
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2015-08-04 06:45:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-08-04 09:13:00
Restart Datetime
2015-08-04 15:15:00
On Site Datetime
2015-08-04 06:45:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Cpc / Krotz Springs Station
Segment Name
Line 2 Unit 1 Drain System Piping
Onshore State Abbreviation
La
Onshore Postal Code
70750
Onshore City Name
Krotz Springs
Onshore County Name
St Landry
Designated Location
Milepost/valve Station
Designated Name
224
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Weld, Including Heat-Affected Zone
Pipe Diameter
2
Pipe Wall Thickness
0.218
Pipe Smys
35000
Pipe Specification
Schedule 80, Grade B
Pipe Seam Type
Seamless
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Weld Subtype
Pipe Girth Weld
Installation Year
1968
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Crack
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
225
Est Cost Prop Damage
1500
Est Cost Emergency
8550
Est Cost Environmental
2500
Est Cost Other
0
Prpty
12775
Accident Psig
85
Mop Psig
960
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Cpm In Place Ind
No
Investigation Status
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate)
Investigation Status Details
The release was due to a failure of a welded piping elbow and was not caused by control room action or inaction
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Material Failure Of Pipe Or Weld
Cause Details
Design-, Construction-, Installation-, Or Fabrication-Related
Field Exam Ind
Yes
Failure Type
Design-, Construction-, Installation-, Or Fabrication-Related
Fatigue Vibr Related
Yes
Failure Subtype
Mechanical Vibration
Mechanical Stress
Yes
Additional Lack Fusion Ind
Yes
Collected Data Ind
No
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
K**** M****
Preparer Title
Compliance Coordinator
Preparer Email
K*****@c******.com
Preparer Telephone
601-765-9168
Preparer Fax
770-754-8489
Prepared Date
2016-04-18 00:00:00
Authorizer Name
D*** L*****
Authorizer Telephone
678-762-2872
Authorizer Title
Manager Phmsa Regulatory Compliance
Authorizer Email
D******@c******.com
Narrative
On 8/4/2015 at 06:45 an employee identified an area of stained gravel between the suction and discharge valves for line 2 unit 1. He contacted the lead technician who sent a team to assist with excavating to identify the leak source. At 09:10 they discovered a leak from a piping elbow in the drain system for the suction side of the unit. The unit was shut down by the control center at 09:13 and isolated which stopped the leak. Internal notifications were made and by 09:47 the loop was isolated, drained, and temporary repairs began. The elbow was removed from the drain line and blind flanges were installed. Initial cleanup and excavation of contaminated soil was completed by 16:44. A preliminary visual inspection of the piping elbow found a crack on the underside of the top flange where the girth weld may not have fully penetrated the pipe material. An incident investigation will be conducted and the findings incorporated in the final accident report. Notifications of the release were made to the local office of emergency preparedness for st landry parish and the louisiana spoc. No additional notifications were made since no other reporting criteria were met. Subsequent investigation revealed that the piping elbow was welded incorrectly during initial installation (insufficient weld penetration). A drain system valve attached to that section of piping had been replaced the week prior and that work may have disturbed the elbow enough to cause the weld to fail over the course of the next week. A corrective action is being evaluated to inspect other sections of the drain system for similar issues. Supplemental final includes pipe data related to yield strength and pipe specification not previously reported.
| Report Received Date | 2015-09-01 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150314 |
| Supplemental Number | 21315 |
| Report Type | Supplemental Final |
| Operator Id | 2552 PHMSA Enforcement |
| Name | Colonial Pipeline Co |
| Operator Street Address | 1000 Lake St. |
| Operator City Name | Alpharetta |
| Operator State Abbreviation | GA |
| Operator Postal Code | 30009 |
| Local Datetime | 2015-08-04 05:10:00 |
| Location Latitude | 30.528648 Google Maps OpenStreetMap |
| Location Longitude | -91.746802 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Diesel, Fuel Oil, Kerosene, Jet Fuel |
| Unintentional Release Bbls | 3.3 |
| Recovered Bbls | 3.3 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-08-04 06:45:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-08-04 09:13:00 |
| Restart Datetime | 2015-08-04 15:15:00 |
| On Site Datetime | 2015-08-04 06:45:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Cpc / Krotz Springs Station |
| Segment Name | Line 2 Unit 1 Drain System Piping |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70750 |
| Onshore City Name | Krotz Springs |
| Onshore County Name | St Landry |
| Designated Location | Milepost/valve Station |
| Designated Name | 224 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Weld, Including Heat-Affected Zone |
| Pipe Diameter | 2 |
| Pipe Wall Thickness | 0.218 |
| Pipe Smys | 35000 |
| Pipe Specification | Schedule 80, Grade B |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Weld Subtype | Pipe Girth Weld |
| Installation Year | 1968 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Crack |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 225 |
| Est Cost Prop Damage | 1500 |
| Est Cost Emergency | 8550 |
| Est Cost Environmental | 2500 |
| Est Cost Other | 0 |
| Prpty | 12775 |
| Accident Psig | 85 |
| Mop Psig | 960 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Cpm In Place Ind | No |
| Investigation Status | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary due to: (provide an explanation for why the operator did not investigate) |
| Investigation Status Details | The release was due to a failure of a welded piping elbow and was not caused by control room action or inaction |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Material Failure Of Pipe Or Weld |
| Cause Details | Design-, Construction-, Installation-, Or Fabrication-Related |
| Field Exam Ind | Yes |
| Failure Type | Design-, Construction-, Installation-, Or Fabrication-Related |
| Fatigue Vibr Related | Yes |
| Failure Subtype | Mechanical Vibration |
| Mechanical Stress | Yes |
| Additional Lack Fusion Ind | Yes |
| Collected Data Ind | No |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | K**** M**** |
| Preparer Title | Compliance Coordinator |
| Preparer Email | K*****@c******.com |
| Preparer Telephone | 601-765-9168 |
| Preparer Fax | 770-754-8489 |
| Prepared Date | 2016-04-18 00:00:00 |
| Authorizer Name | D*** L***** |
| Authorizer Telephone | 678-762-2872 |
| Authorizer Title | Manager Phmsa Regulatory Compliance |
| Authorizer Email | D******@c******.com |
| Narrative | On 8/4/2015 at 06:45 an employee identified an area of stained gravel between the suction and discharge valves for line 2 unit 1. He contacted the lead technician who sent a team to assist with excavating to identify the leak source. At 09:10 they discovered a leak from a piping elbow in the drain system for the suction side of the unit. The unit was shut down by the control center at 09:13 and isolated which stopped the leak. Internal notifications were made and by 09:47 the loop was isolated, drained, and temporary repairs began. The elbow was removed from the drain line and blind flanges were installed. Initial cleanup and excavation of contaminated soil was completed by 16:44. A preliminary visual inspection of the piping elbow found a crack on the underside of the top flange where the girth weld may not have fully penetrated the pipe material. An incident investigation will be conducted and the findings incorporated in the final accident report. Notifications of the release were made to the local office of emergency preparedness for st landry parish and the louisiana spoc. No additional notifications were made since no other reporting criteria were met. Subsequent investigation revealed that the piping elbow was welded incorrectly during initial installation (insufficient weld penetration). A drain system valve attached to that section of piping had been replaced the week prior and that work may have disturbed the elbow enough to cause the weld to fail over the course of the next week. A corrective action is being evaluated to inspect other sections of the drain system for similar issues. Supplemental final includes pipe data related to yield strength and pipe specification not previously reported. |
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