Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2016-08-16 — TX
Operator
Dixie Pipeline Company Llc
Cause
Equipment Failure
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2016-08-16 00:22
Report number
Location
TX
Narrative
At approximately 12:22 am cdt on august 16, 2016, enterprise control center received hazardous gas esd for both opelika station and opelika terminal. At 12:23 am motor operated mainline valves upstream and downstream of the station were closed. Local operations arrived on site at and confirmed the leak at 12:55 am. With the help of emergency responders, highway 51 was closed to traffic on the north and south side of the station. Station was isolated and blown down, and leak was confirmed to be originating from station strainer. Strainer o-ring was identified as having failed and new o-ring was installed in strainer. At 10:40 am, station was restarted and resumed normal operations. Upon further investigation, leak was determined to have started at 10:00 pm the night before, and a total of 6.91 bbls of propane was released. There were no injuries, evacuations, or fire as a result of this release. In lieu of performing the o-ring analysis, the strainer was removed and a spool piece with a cone strainer was installed in its place on september 11, 2016.
Detailed record list
Report Received Date
2016-09-13 00:00:00
Iyear
2016
Report Number
20160296
Supplemental Number
21943
Report Type
Supplemental Final
Operator Id
3445
Name
Dixie Pipeline Company Llc
Operator Street Address
1100 Louisiana St.
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2016-08-15 22:00:00
Location Latitude
32.577172
Location Longitude
-85.370262
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Propane
Unintentional Release Bbls
6.91
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2016-08-16 00:22:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2016-08-16 00:23:00
Restart Datetime
2016-08-16 10:40:00
On Site Datetime
2016-08-16 00:55:00
Nrc Rpt Datetime
2016-08-16 01:27:00
Nrc Rpt Num
1156357
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Opelika Station
Segment Name
Line Id 120
Onshore State Abbreviation
Al
Onshore Postal Code
36804
Onshore City Name
Opelika
Onshore County Name
Lee
Designated Location
Milepost/valve Station
Designated Name
631.44
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Other
Item Involved Details
Strainer
Installation Year
1961
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
290
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
5000
Est Cost Other Details
Cost Associated With Failure Analysis Of The O-Ring From Strainer Assembly
Prpty
5290
Accident Psig
407.9
Mop Psig
1406
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
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
No
Cpm Conf 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
Controller nor control room were a contributing factor
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
Unknown - See Part H
Preparer Name
L**** W*******
Preparer Title
Pipeline Compliance Engineer
Preparer Email
L*********@e****.com
Preparer Telephone
713-381-6748
Prepared Date
2016-12-08 00:00:00
Authorizer Name
L**** W*******
Authorizer Telephone
713-381-6748
Authorizer Title
Pipeline Compliance Engineer
Authorizer Email
L*********@e****.com
Narrative
At approximately 12:22 am cdt on august 16, 2016, enterprise control center received hazardous gas esd for both opelika station and opelika terminal. At 12:23 am motor operated mainline valves upstream and downstream of the station were closed. Local operations arrived on site at and confirmed the leak at 12:55 am. With the help of emergency responders, highway 51 was closed to traffic on the north and south side of the station. Station was isolated and blown down, and leak was confirmed to be originating from station strainer. Strainer o-ring was identified as having failed and new o-ring was installed in strainer. At 10:40 am, station was restarted and resumed normal operations. Upon further investigation, leak was determined to have started at 10:00 pm the night before, and a total of 6.91 bbls of propane was released. There were no injuries, evacuations, or fire as a result of this release. In lieu of performing the o-ring analysis, the strainer was removed and a spool piece with a cone strainer was installed in its place on september 11, 2016.
| Report Received Date | 2016-09-13 00:00:00 |
|---|---|
| Iyear | 2016 |
| Report Number | 20160296 |
| Supplemental Number | 21943 |
| Report Type | Supplemental Final |
| Operator Id | 3445 PHMSA Enforcement |
| Name | Dixie Pipeline Company Llc |
| Operator Street Address | 1100 Louisiana St. |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2016-08-15 22:00:00 |
| Location Latitude | 32.577172 Google Maps OpenStreetMap |
| Location Longitude | -85.370262 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Propane |
| Unintentional Release Bbls | 6.91 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2016-08-16 00:22:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2016-08-16 00:23:00 |
| Restart Datetime | 2016-08-16 10:40:00 |
| On Site Datetime | 2016-08-16 00:55:00 |
| Nrc Rpt Datetime | 2016-08-16 01:27:00 |
| Nrc Rpt Num | 1156357 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Opelika Station |
| Segment Name | Line Id 120 |
| Onshore State Abbreviation | Al |
| Onshore Postal Code | 36804 |
| Onshore City Name | Opelika |
| Onshore County Name | Lee |
| Designated Location | Milepost/valve Station |
| Designated Name | 631.44 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Other |
| Item Involved Details | Strainer |
| Installation Year | 1961 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 290 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 5000 |
| Est Cost Other Details | Cost Associated With Failure Analysis Of The O-Ring From Strainer Assembly |
| Prpty | 5290 |
| Accident Psig | 407.9 |
| Mop Psig | 1406 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | No |
| Cpm Conf 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 | Controller nor control room were a contributing factor |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Unknown - See Part H |
| Preparer Name | L**** W******* |
| Preparer Title | Pipeline Compliance Engineer |
| Preparer Email | L*********@e****.com |
| Preparer Telephone | 713-381-6748 |
| Prepared Date | 2016-12-08 00:00:00 |
| Authorizer Name | L**** W******* |
| Authorizer Telephone | 713-381-6748 |
| Authorizer Title | Pipeline Compliance Engineer |
| Authorizer Email | L*********@e****.com |
| Narrative | At approximately 12:22 am cdt on august 16, 2016, enterprise control center received hazardous gas esd for both opelika station and opelika terminal. At 12:23 am motor operated mainline valves upstream and downstream of the station were closed. Local operations arrived on site at and confirmed the leak at 12:55 am. With the help of emergency responders, highway 51 was closed to traffic on the north and south side of the station. Station was isolated and blown down, and leak was confirmed to be originating from station strainer. Strainer o-ring was identified as having failed and new o-ring was installed in strainer. At 10:40 am, station was restarted and resumed normal operations. Upon further investigation, leak was determined to have started at 10:00 pm the night before, and a total of 6.91 bbls of propane was released. There were no injuries, evacuations, or fire as a result of this release. In lieu of performing the o-ring analysis, the strainer was removed and a spool piece with a cone strainer was installed in its place on september 11, 2016. |
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