Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2017-05-31 — TX
Operator
Cypress Gas Pipeline Company
Cause
Other Incident Cause
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$70,000
Incident datetime
2017-05-31 01:05
Report number
Location
TX
Narrative
An unknown third party reported to nrc, #1179785, "that a barge broke free of its moorings and collided with an underwater pipeline in the mississippi river resulting in a release of natural gas." cypress gas pipeline manually isolated the mississippi river crossing on the east and west bank. A side scan sonar investigation indicates the pipeline to be broken at approximately 50 feet below the current river level. The sonar data did not have clarity due to the river conditions to determine what may have caused this incident. The pipeline has been abandoned. Cypress gas pipeline made a 48 hour notification update to the nrc, #1179998, on june 1, 2017 at 18:09 updating volume released.
Detailed record list
Report Received Date
2017-06-26 00:00:00
Iyear
2017
Report Number
20170046
Supplemental Number
30882
Report Type
Supplemental Final
Operator Id
12696
Name
Cypress Gas Pipeline Company
Operator Street Address
1100 Louisiana St.
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2017-05-31 00:01:00
Location Latitude
30.04764
Location Longitude
-90.66066
Nrc Rpt Num
1179788
Nrc Rpt Datetime
2017-05-31 02:36:00
Commodity Released Type
Natural Gas
Unintentional Release
21000
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-05-31 01:19:00
Still Shutdown Ind
Yes
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2017-05-31 01:05:00
On Site Datetime
2017-05-31 01:05:00
On Off Shore
Onshore
Onshore State Abbreviation
La
Onshore Postal Code
70069
Onshore City Name
Gramercy
Onshore County Name
St. John The Babtist
Designated Location
Milepost
Designated Name
1330+00
Pipe Fac Name
Lake Boeuf To Gramercy
Segment Name
Brs 101
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
Yes
Water Crossing Ind
Yes
Water Type
Uncased
Water Name
Mississippi River
Water Depth
50
Water Subtype
Below Water, Pipe On Or Above Bottom
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
12
Pipe Wall Thickness
0.5
Pipe Smys
35000
Pipe Specification
Api 5l
Pipe Seam Type
Seamless
Pipe Manufacturer
Youngstown Steel
Pipe Coating Type
Other
Pipe Coating Details
Cement
Installation Year
1959
Manufactured Year
1959
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Side Scan Sonar Indicated A Break In The Pipeline.
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
248
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
67000
Est Cost Intentional Release
0
Est Cost Prop Damage
70000
Est Cost Emergency
0
Est Cost Other
0
Prpty
137000
Accident Psig
750
Mop Psig
900
Mop Cfr Section
192.619(A)(1)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
4623
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
There Are No Pigging Facilities On This Section Of Pipeline.
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
Yes
Scada Conf Ind
Yes
Accident Identifier
Controller
Operator Type
Operator Employee
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
Possible third party damage due to a barge strike in mississippi river.
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
Yes
Num Employees Tested
1
Num Employees Failed
0
Num Contractors Tested
1
Num Contractors Failed
0
Cause
Other Incident Cause
Cause Details
Unknown
Other Type
Unknown
Unknown Subtype
Investigation Complete, Cause Of Incident Unknown
Preparer Name
N***** L* G*** J**
Preparer Title
Senior Pipeline Compliance Specialst
Preparer Email
N****@e****.com
Preparer Telephone
9854934629
Authorizer Name
N***** L* G*** J**
Authorizer Title
Senior Pipeline Compliance Specialst
Authorizer Telephone
9854934629
Authorizer Email
N****@e****.com
Narrative
An unknown third party reported to nrc, #1179785, "that a barge broke free of its moorings and collided with an underwater pipeline in the mississippi river resulting in a release of natural gas." cypress gas pipeline manually isolated the mississippi river crossing on the east and west bank. A side scan sonar investigation indicates the pipeline to be broken at approximately 50 feet below the current river level. The sonar data did not have clarity due to the river conditions to determine what may have caused this incident. The pipeline has been abandoned. Cypress gas pipeline made a 48 hour notification update to the nrc, #1179998, on june 1, 2017 at 18:09 updating volume released.
| Report Received Date | 2017-06-26 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170046 |
| Supplemental Number | 30882 |
| Report Type | Supplemental Final |
| Operator Id | 12696 PHMSA Enforcement |
| Name | Cypress Gas Pipeline Company |
| Operator Street Address | 1100 Louisiana St. |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2017-05-31 00:01:00 |
| Location Latitude | 30.04764 Google Maps OpenStreetMap |
| Location Longitude | -90.66066 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1179788 NRC Report How to search |
| Nrc Rpt Datetime | 2017-05-31 02:36:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 21000 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-05-31 01:19:00 |
| Still Shutdown Ind | Yes |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2017-05-31 01:05:00 |
| On Site Datetime | 2017-05-31 01:05:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | La |
| Onshore Postal Code | 70069 |
| Onshore City Name | Gramercy |
| Onshore County Name | St. John The Babtist |
| Designated Location | Milepost |
| Designated Name | 1330+00 |
| Pipe Fac Name | Lake Boeuf To Gramercy |
| Segment Name | Brs 101 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | Yes |
| Water Crossing Ind | Yes |
| Water Type | Uncased |
| Water Name | Mississippi River |
| Water Depth | 50 |
| Water Subtype | Below Water, Pipe On Or Above Bottom |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 12 |
| Pipe Wall Thickness | 0.5 |
| Pipe Smys | 35000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Seamless |
| Pipe Manufacturer | Youngstown Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Cement |
| Installation Year | 1959 |
| Manufactured Year | 1959 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Side Scan Sonar Indicated A Break In The Pipeline. |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 248 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 67000 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 70000 |
| Est Cost Emergency | 0 |
| Est Cost Other | 0 |
| Prpty | 137000 |
| Accident Psig | 750 |
| Mop Psig | 900 |
| Mop Cfr Section | 192.619(A)(1) 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 | 4623 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | There Are No Pigging Facilities On This Section Of Pipeline. |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | Yes |
| Scada Conf Ind | Yes |
| Accident Identifier | Controller |
| Operator Type | Operator Employee |
| 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 | Possible third party damage due to a barge strike in mississippi river. |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | Yes |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Num Contractors Tested | 1 |
| Num Contractors Failed | 0 |
| Cause | Other Incident Cause |
| Cause Details | Unknown |
| Other Type | Unknown |
| Unknown Subtype | Investigation Complete, Cause Of Incident Unknown |
| Preparer Name | N***** L* G*** J** |
| Preparer Title | Senior Pipeline Compliance Specialst |
| Preparer Email | N****@e****.com |
| Preparer Telephone | 9854934629 |
| Authorizer Name | N***** L* G*** J** |
| Authorizer Title | Senior Pipeline Compliance Specialst |
| Authorizer Telephone | 9854934629 |
| Authorizer Email | N****@e****.com |
| Narrative | An unknown third party reported to nrc, #1179785, "that a barge broke free of its moorings and collided with an underwater pipeline in the mississippi river resulting in a release of natural gas." cypress gas pipeline manually isolated the mississippi river crossing on the east and west bank. A side scan sonar investigation indicates the pipeline to be broken at approximately 50 feet below the current river level. The sonar data did not have clarity due to the river conditions to determine what may have caused this incident. The pipeline has been abandoned. Cypress gas pipeline made a 48 hour notification update to the nrc, #1179998, on june 1, 2017 at 18:09 updating volume released. |
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