Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-04-21 — TX
Operator
Enterprise Crude Pipeline Llc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$5
Incident datetime
2019-04-21 17:30
Report number
Location
TX
Narrative
On 04/21/2019 at approximately 17:30, contractor discovered a 2" recirculation nozzle flanged connection on tank 390-105 leaked approximately 4 bbls of crude oil onto the ground. Contractor notified enterprise employee who tightened bolts on the flange and stopped the leak. Remediation was completed on 04/23/2019. Investigation determined the gasket was ansi 300 installed on an ansi 150 flange. Mismatched bolt holes were forced to fit and tightened to seal. Over time this cracked the gasket causing the leak. All gaskets on the 2" recirculation nozzle flanges on this tank were replaced and gaskets on flanged connections on other tanks were inspected.
Detailed record list
Report Received Date
2019-05-16 00:00:00
Iyear
2019
Report Number
20190158
Supplemental Number
32240
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
2019-04-21 17:30:00
Location Latitude
29.7602
Location Longitude
-95.1429
Commodity Released Type
Crude Oil
Unintentional Release Bbls
4
Recovered Bbls
4
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2019-04-21 17:30:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Operator Employee Tightened Connection To Stop Leak
On Site Datetime
2019-04-21 17:30:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Appelt Tank Farm
Segment Name
Tank 390-105
Onshore State Abbreviation
Tx
Onshore Postal Code
77015
Onshore City Name
Houston
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Tank Farm
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Tank, Including Attached Appurtenances
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Flange Assembly
Installation Year
2013
Material Involved
Material Other Than Carbon Steel
Material Details
Compressed Fiber
Release Type
Leak
Leak Type
Connection Failure
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
No
Est Cost Oper Paid
0
Est Cost Gas Released
240
Est Cost Prop Damage
5
Est Cost Emergency
0
Est Cost Environmental
44535
Est Cost Other
0
Prpty
44780
Accident Psig
20
Mop Psig
285
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Pipeline Function
> 20% Smys Regulated Transmission
Scada In Place 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
Control room personnel and procedures did not contribute to accident.
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
Gasket
Additional Installation Ind
Yes
Preparer Name
D**** B*****
Preparer Title
Pipeline Compliance Engineer
Preparer Email
D*******@e****.com
Preparer Telephone
713-381-5647
Prepared Date
2019-06-05 00:00:00
Authorizer Name
D**** B*****
Authorizer Telephone
713-381-5647
Authorizer Title
Pipeline Compliance Engineer
Authorizer Email
D*******@e****.com
Narrative
On 04/21/2019 at approximately 17:30, contractor discovered a 2" recirculation nozzle flanged connection on tank 390-105 leaked approximately 4 bbls of crude oil onto the ground. Contractor notified enterprise employee who tightened bolts on the flange and stopped the leak. Remediation was completed on 04/23/2019. Investigation determined the gasket was ansi 300 installed on an ansi 150 flange. Mismatched bolt holes were forced to fit and tightened to seal. Over time this cracked the gasket causing the leak. All gaskets on the 2" recirculation nozzle flanges on this tank were replaced and gaskets on flanged connections on other tanks were inspected.
| Report Received Date | 2019-05-16 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190158 |
| Supplemental Number | 32240 |
| 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 | 2019-04-21 17:30:00 |
| Location Latitude | 29.7602 Google Maps OpenStreetMap |
| Location Longitude | -95.1429 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 4 |
| Recovered Bbls | 4 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2019-04-21 17:30:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Operator Employee Tightened Connection To Stop Leak |
| On Site Datetime | 2019-04-21 17:30:00 |
| 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 | Appelt Tank Farm |
| Segment Name | Tank 390-105 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77015 |
| Onshore City Name | Houston |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Tank Farm |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Tank, Including Attached Appurtenances |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Flange Assembly |
| Installation Year | 2013 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Compressed Fiber |
| Release Type | Leak |
| Leak Type | Connection Failure |
| 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 | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 240 |
| Est Cost Prop Damage | 5 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 44535 |
| Est Cost Other | 0 |
| Prpty | 44780 |
| Accident Psig | 20 |
| Mop Psig | 285 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Pipeline Function | > 20% Smys Regulated Transmission |
| Scada In Place 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 | Control room personnel and procedures did not contribute to accident. |
| 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 | Gasket |
| Additional Installation Ind | Yes |
| Preparer Name | D**** B***** |
| Preparer Title | Pipeline Compliance Engineer |
| Preparer Email | D*******@e****.com |
| Preparer Telephone | 713-381-5647 |
| Prepared Date | 2019-06-05 00:00:00 |
| Authorizer Name | D**** B***** |
| Authorizer Telephone | 713-381-5647 |
| Authorizer Title | Pipeline Compliance Engineer |
| Authorizer Email | D*******@e****.com |
| Narrative | On 04/21/2019 at approximately 17:30, contractor discovered a 2" recirculation nozzle flanged connection on tank 390-105 leaked approximately 4 bbls of crude oil onto the ground. Contractor notified enterprise employee who tightened bolts on the flange and stopped the leak. Remediation was completed on 04/23/2019. Investigation determined the gasket was ansi 300 installed on an ansi 150 flange. Mismatched bolt holes were forced to fit and tightened to seal. Over time this cracked the gasket causing the leak. All gaskets on the 2" recirculation nozzle flanges on this tank were replaced and gaskets on flanged connections on other tanks were inspected. |
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