Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-09-04 — TX
Operator
Enterprise Crude Pipeline Llc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$17,500
Incident datetime
2020-09-04 00:25
Report number
Location
TX
Narrative
Beginning 9/3/2020 at 18:50, houston control center received notice of sump activity at corsicana station. At 22:00 the sump was pumped down by the controller. After the pump-down event, however, the controller continued to observe a slow gain in the sump level and dispatched a tech to investigate. On 9/4/2020 at 00:55, the enterprise technician arrived at corsicana station and discovered the outboard seal on unit #2 had failed. The volume of the release overwhelmed the drain tubing. An estimated 15 bbls were released onto the skid and surrounding ground inside the station. Absorbent rags and booms were placed around the leak area in preparation for clean-up. A vacuum truck was called in for remediation. Remediation was completed on 09/15/2020. Upon repair, the pump was given a seal of updated design. During the investigation, it was also realized that the alarms did not activate due to residue buildup on the level float. To prevent reoccurrence, a flush plan has been developed to test functionality on an annual basis and maintain the seal pot components.
Detailed record list
Report Received Date
2020-09-30 00:00:00
Iyear
2020
Report Number
20200267
Supplemental Number
34546
Report Type
Supplemental Final
Operator Id
30829
Name
Enterprise Crude Pipeline Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2020-09-03 18:50:00
Location Latitude
32.233953
Location Longitude
-96.337986
Commodity Released Type
Crude Oil
Unintentional Release Bbls
15
Recovered Bbls
15
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
2020-09-04 00:25:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Line Was Down Due To Storms Upstream.
On Site Datetime
2020-09-04 00:25:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Corsicana Pump Station
Segment Name
Txxx1433
Onshore State Abbreviation
Tx
Onshore Postal Code
75240
Onshore City Name
Montfort
Onshore County Name
Navarro
Designated Location
Milepost/valve Station
Designated Name
Pump Station
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
Pump Seal
Installation Year
2016
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
600
Est Cost Prop Damage
17500
Est Cost Emergency
14332
Est Cost Environmental
6500
Est Cost Other
0
Prpty
38932
Accident Psig
148
Mop Psig
1440
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
Sump stayed within operating range, sump gain during rain events is not abnormal, and no trouble states activated to indicate seal leak.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Pump Or Pump-Related Equipment
Eq Failure Type
Pump Or Pump-Related Equipment
Other Pump Ind
Seal/packing Failure
Eq Additional Other Ind
Yes
Eq Additional Other Details
Buildup Of Debris On Instrumentation Prevented Indication Of Seal Failure.
Preparer Name
R*** T********
Preparer Title
Engineer - Pipeline Compliance
Preparer Email
R*********@e****.com
Preparer Telephone
7133814659
Prepared Date
2020-11-18 00:00:00
Authorizer Name
S**** D****
Authorizer Telephone
7133815585
Authorizer Title
Manager - Compliance
Authorizer Email
S******@e****.com
Narrative
Beginning 9/3/2020 at 18:50, houston control center received notice of sump activity at corsicana station. At 22:00 the sump was pumped down by the controller. After the pump-down event, however, the controller continued to observe a slow gain in the sump level and dispatched a tech to investigate. On 9/4/2020 at 00:55, the enterprise technician arrived at corsicana station and discovered the outboard seal on unit #2 had failed. The volume of the release overwhelmed the drain tubing. An estimated 15 bbls were released onto the skid and surrounding ground inside the station. Absorbent rags and booms were placed around the leak area in preparation for clean-up. A vacuum truck was called in for remediation. Remediation was completed on 09/15/2020. Upon repair, the pump was given a seal of updated design. During the investigation, it was also realized that the alarms did not activate due to residue buildup on the level float. To prevent reoccurrence, a flush plan has been developed to test functionality on an annual basis and maintain the seal pot components.
| Report Received Date | 2020-09-30 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200267 |
| Supplemental Number | 34546 |
| Report Type | Supplemental Final |
| Operator Id | 30829 PHMSA Enforcement |
| Name | Enterprise Crude Pipeline Llc |
| Operator Street Address | 1100 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2020-09-03 18:50:00 |
| Location Latitude | 32.233953 Google Maps OpenStreetMap |
| Location Longitude | -96.337986 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 15 |
| Recovered Bbls | 15 |
| 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 | 2020-09-04 00:25:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Line Was Down Due To Storms Upstream. |
| On Site Datetime | 2020-09-04 00:25:00 |
| 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 | Corsicana Pump Station |
| Segment Name | Txxx1433 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75240 |
| Onshore City Name | Montfort |
| Onshore County Name | Navarro |
| Designated Location | Milepost/valve Station |
| Designated Name | Pump Station |
| 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 | Pump Seal |
| Installation Year | 2016 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 600 |
| Est Cost Prop Damage | 17500 |
| Est Cost Emergency | 14332 |
| Est Cost Environmental | 6500 |
| Est Cost Other | 0 |
| Prpty | 38932 |
| Accident Psig | 148 |
| Mop Psig | 1440 |
| 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 | Sump stayed within operating range, sump gain during rain events is not abnormal, and no trouble states activated to indicate seal leak. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Pump Or Pump-Related Equipment |
| Eq Failure Type | Pump Or Pump-Related Equipment |
| Other Pump Ind | Seal/packing Failure |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Buildup Of Debris On Instrumentation Prevented Indication Of Seal Failure. |
| Preparer Name | R*** T******** |
| Preparer Title | Engineer - Pipeline Compliance |
| Preparer Email | R*********@e****.com |
| Preparer Telephone | 7133814659 |
| Prepared Date | 2020-11-18 00:00:00 |
| Authorizer Name | S**** D**** |
| Authorizer Telephone | 7133815585 |
| Authorizer Title | Manager - Compliance |
| Authorizer Email | S******@e****.com |
| Narrative | Beginning 9/3/2020 at 18:50, houston control center received notice of sump activity at corsicana station. At 22:00 the sump was pumped down by the controller. After the pump-down event, however, the controller continued to observe a slow gain in the sump level and dispatched a tech to investigate. On 9/4/2020 at 00:55, the enterprise technician arrived at corsicana station and discovered the outboard seal on unit #2 had failed. The volume of the release overwhelmed the drain tubing. An estimated 15 bbls were released onto the skid and surrounding ground inside the station. Absorbent rags and booms were placed around the leak area in preparation for clean-up. A vacuum truck was called in for remediation. Remediation was completed on 09/15/2020. Upon repair, the pump was given a seal of updated design. During the investigation, it was also realized that the alarms did not activate due to residue buildup on the level float. To prevent reoccurrence, a flush plan has been developed to test functionality on an annual basis and maintain the seal pot components. |
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