Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-07-23 — TX
Operator
Sunoco Pipeline L.p.
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$300
Incident datetime
2018-07-23 05:22
Report number
Location
TX
Narrative
While starting up the eola-maysville 10" line at approximately 05:21 on 7/23/18 the controller noted higher than normal operating pressures at the maysville delivery location and shut the line down at approximately 05:23. The line remained down while the controller conducted a shift change, and then a call was made to the operations supervisor at approximately 06:45 about the situation. At approximately 06:50, a pipeline technician discovered a product leak in the maysville station yard around the delivery meter system. He called the controller to ensure the system would remain shut down and found the leak coming from the vent/weep hole on the backpressure valve to the inbound meter. Valves upstream and downstream of the backpressure valve were closed to isolate. Estimated release volume was one barrel and cleanup activities were initiated. Upon further investigation into the failure it was determined that the diaphragm of the backpressure valve failed which allowed crude oil to leak through the vent/weep hole. The diaphragm was replaced. Further investigation determined that the back pressure valve was rated to a lower operating pressure than station mop. A valve rated to an appropriate pressure for the application was ordered to replace the existing backpressure valve. Until such time the valve is replaced the station operating pressure will be limited to a pressure below the rating of the existing back pressure valve to ensure a reoccurrence does not happen.
Detailed record list
Report Received Date
2018-08-23 00:00:00
Iyear
2018
Report Number
20180252
Supplemental Number
30846
Report Type
Original Final
Operator Id
18718
Name
Sunoco Pipeline L.p.
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2018-07-23 05:22:00
Location Latitude
34.81973
Location Longitude
-97.44531
Commodity Released Type
Crude Oil
Unintentional Release Bbls
1
Recovered Bbls
1
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
2018-07-23 05:22:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-07-23 05:23:00
Restart Datetime
2018-07-23 10:30:00
On Site Datetime
2018-07-23 06:50:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Maysville Station
Segment Name
25003-10" Eola To Maysville
Onshore State Abbreviation
Ok
Onshore Postal Code
73057
Onshore City Name
Maysville
Onshore County Name
Garvin
Designated Location
Milepost/valve Station
Designated Name
0+00
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
Intrastate
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
1985
Material Involved
Material Other Than Carbon Steel
Material Details
Nylon Reinforced Buna N
Release Type
Leak
Leak Type
Other
Leak Type Other
Valve Diaphragm Failure
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
50
Est Cost Prop Damage
300
Est Cost Emergency
150
Est Cost Environmental
200
Est Cost Other
0
Prpty
700
Accident Psig
183
Mop Psig
275
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
No
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
The controller reacted appropriately to indications of higher than normal operating pressure at delivery point and immediately shutdown the pipeline.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
Back Pressure Valve Diaphragm Failure
Additional Overpressure Ind
Yes
Additional Installation Ind
Yes
Preparer Name
T*** N*******
Preparer Title
Sr. Manager - Dot Compliance
Preparer Email
T************@e*************.com
Preparer Telephone
713-989-7126
Preparer Fax
877-917-0448
Prepared Date
2018-08-23 00:00:00
Authorizer Name
T*** N*******
Authorizer Telephone
713-989-7126
Authorizer Title
Sr. Manager - Dot Compliance
Authorizer Email
T************@e*************.com
Narrative
While starting up the eola-maysville 10" line at approximately 05:21 on 7/23/18 the controller noted higher than normal operating pressures at the maysville delivery location and shut the line down at approximately 05:23. The line remained down while the controller conducted a shift change, and then a call was made to the operations supervisor at approximately 06:45 about the situation. At approximately 06:50, a pipeline technician discovered a product leak in the maysville station yard around the delivery meter system. He called the controller to ensure the system would remain shut down and found the leak coming from the vent/weep hole on the backpressure valve to the inbound meter. Valves upstream and downstream of the backpressure valve were closed to isolate. Estimated release volume was one barrel and cleanup activities were initiated. Upon further investigation into the failure it was determined that the diaphragm of the backpressure valve failed which allowed crude oil to leak through the vent/weep hole. The diaphragm was replaced. Further investigation determined that the back pressure valve was rated to a lower operating pressure than station mop. A valve rated to an appropriate pressure for the application was ordered to replace the existing backpressure valve. Until such time the valve is replaced the station operating pressure will be limited to a pressure below the rating of the existing back pressure valve to ensure a reoccurrence does not happen.
| Report Received Date | 2018-08-23 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180252 |
| Supplemental Number | 30846 |
| Report Type | Original Final |
| Operator Id | 18718 PHMSA Enforcement |
| Name | Sunoco Pipeline L.p. |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2018-07-23 05:22:00 |
| Location Latitude | 34.81973 Google Maps OpenStreetMap |
| Location Longitude | -97.44531 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 1 |
| Recovered Bbls | 1 |
| 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 | 2018-07-23 05:22:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-07-23 05:23:00 |
| Restart Datetime | 2018-07-23 10:30:00 |
| On Site Datetime | 2018-07-23 06:50:00 |
| 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 | Maysville Station |
| Segment Name | 25003-10" Eola To Maysville |
| Onshore State Abbreviation | Ok |
| Onshore Postal Code | 73057 |
| Onshore City Name | Maysville |
| Onshore County Name | Garvin |
| Designated Location | Milepost/valve Station |
| Designated Name | 0+00 |
| 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 | Intrastate |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 1985 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Nylon Reinforced Buna N |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Valve Diaphragm Failure |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 50 |
| Est Cost Prop Damage | 300 |
| Est Cost Emergency | 150 |
| Est Cost Environmental | 200 |
| Est Cost Other | 0 |
| Prpty | 700 |
| Accident Psig | 183 |
| Mop Psig | 275 |
| 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 | No |
| 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 | The controller reacted appropriately to indications of higher than normal operating pressure at delivery point and immediately shutdown the pipeline. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | Back Pressure Valve Diaphragm Failure |
| Additional Overpressure Ind | Yes |
| Additional Installation Ind | Yes |
| Preparer Name | T*** N******* |
| Preparer Title | Sr. Manager - Dot Compliance |
| Preparer Email | T************@e*************.com |
| Preparer Telephone | 713-989-7126 |
| Preparer Fax | 877-917-0448 |
| Prepared Date | 2018-08-23 00:00:00 |
| Authorizer Name | T*** N******* |
| Authorizer Telephone | 713-989-7126 |
| Authorizer Title | Sr. Manager - Dot Compliance |
| Authorizer Email | T************@e*************.com |
| Narrative | While starting up the eola-maysville 10" line at approximately 05:21 on 7/23/18 the controller noted higher than normal operating pressures at the maysville delivery location and shut the line down at approximately 05:23. The line remained down while the controller conducted a shift change, and then a call was made to the operations supervisor at approximately 06:45 about the situation. At approximately 06:50, a pipeline technician discovered a product leak in the maysville station yard around the delivery meter system. He called the controller to ensure the system would remain shut down and found the leak coming from the vent/weep hole on the backpressure valve to the inbound meter. Valves upstream and downstream of the backpressure valve were closed to isolate. Estimated release volume was one barrel and cleanup activities were initiated. Upon further investigation into the failure it was determined that the diaphragm of the backpressure valve failed which allowed crude oil to leak through the vent/weep hole. The diaphragm was replaced. Further investigation determined that the back pressure valve was rated to a lower operating pressure than station mop. A valve rated to an appropriate pressure for the application was ordered to replace the existing backpressure valve. Until such time the valve is replaced the station operating pressure will be limited to a pressure below the rating of the existing back pressure valve to ensure a reoccurrence does not happen. |
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