Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-09-16 — TX
Operator
Exxonmobil Pipeline Co
Cause
Corrosion Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$100,000
Incident datetime
2019-09-16 06:50
Report number
Location
TX
Narrative
On the morning of september 16, 2019, local operating personnel discovered crude near the 16" meter skid at empco's webster station. The station was shutdown and isolated. The source of the crude was identified as internal corrosion on the bottom of a partially buried strainer. The site was cleaned up and restored and all spilled free product was recovered. A metallurgical analysis was performed and determined to be internal corrosion due to microbial induced corrosion. It was determined that, even though the strainer and associated piping was on the sites low point drain list for regular flushing, that the drain valve was clogged, preventing proper draining and flowing of the strainer. The strainer will be replaced with a new strainer and steps will be taken to verify that the sump is gaining during the low point drain flushing operations to assure flow through the strainer.
Detailed record list
Report Received Date
2019-10-15 00:00:00
Iyear
2019
Report Number
20190311
Supplemental Number
32824
Report Type
Supplemental Final
Operator Id
4906
Name
Exxonmobil Pipeline Co
Operator Street Address
22777 Springwoods Village Parkway E2.2b-Emp
Operator City Name
Spring
Operator State Abbreviation
TX
Operator Postal Code
77389
Local Datetime
2019-09-16 06:50:00
Location Latitude
29.5208806
Location Longitude
-95.1061667
Commodity Released Type
Crude Oil
Unintentional Release Bbls
2
Recovered Bbls
1.9
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-09-16 06:50:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2019-09-16 06:54:00
Restart Datetime
2019-09-17 05:06:00
On Site Datetime
2019-09-16 06:50:00
Nrc Rpt Datetime
2019-09-16 08:00:00
Nrc Rpt Num
1258346
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Webster Station
Segment Name
Ba 25, Webster To Baytown 16 Inch Crude Line
Onshore State Abbreviation
Tx
Onshore Postal Code
77598
Onshore City Name
Webster
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Webster Stati
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
3
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Meter/prover
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Pinhole
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
Yes
High Pop Ind
Yes
High Pop Yes No
No
Est Cost Oper Paid
0
Est Cost Gas Released
114
Est Cost Prop Damage
100000
Est Cost Emergency
500000
Est Cost Environmental
0
Est Cost Other
0
Prpty
600114
Accident Psig
10
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
No
Scada Conf 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
Incident did not involved occ.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
Internal Corrosion
Internal External
Internal Corrosion
Int Visual Exam Results
Localized Pitting
Int Microbiological Ind
Yes
Int Field Exam Basis Ind
Yes
Int Metallurgical Basis Ind
Yes
Int Low Point Pipe Loc Ind
Yes
Corrosion Inhibitors
Yes
Corrosion Lining
No
Cleaning Dewatering
Not Applicable - Not Mainline Pipe
Corrosion Coupons
Yes
Preparer Name
J** M*********
Preparer Title
Pipeline Safety Advisor
Preparer Email
J*****************@e*********.com
Preparer Telephone
832-624-6121
Prepared Date
2019-10-15 00:00:00
Authorizer Name
C******* B* H********
Authorizer Telephone
832-624-7920
Authorizer Title
Empco Sshe Manager
Authorizer Email
C*******************@e*********.com
Narrative
On the morning of september 16, 2019, local operating personnel discovered crude near the 16" meter skid at empco's webster station. The station was shutdown and isolated. The source of the crude was identified as internal corrosion on the bottom of a partially buried strainer. The site was cleaned up and restored and all spilled free product was recovered. A metallurgical analysis was performed and determined to be internal corrosion due to microbial induced corrosion. It was determined that, even though the strainer and associated piping was on the sites low point drain list for regular flushing, that the drain valve was clogged, preventing proper draining and flowing of the strainer. The strainer will be replaced with a new strainer and steps will be taken to verify that the sump is gaining during the low point drain flushing operations to assure flow through the strainer.
| Report Received Date | 2019-10-15 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190311 |
| Supplemental Number | 32824 |
| Report Type | Supplemental Final |
| Operator Id | 4906 PHMSA Enforcement |
| Name | Exxonmobil Pipeline Co |
| Operator Street Address | 22777 Springwoods Village Parkway E2.2b-Emp |
| Operator City Name | Spring |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77389 |
| Local Datetime | 2019-09-16 06:50:00 |
| Location Latitude | 29.5208806 Google Maps OpenStreetMap |
| Location Longitude | -95.1061667 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 2 |
| Recovered Bbls | 1.9 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-09-16 06:50:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2019-09-16 06:54:00 |
| Restart Datetime | 2019-09-17 05:06:00 |
| On Site Datetime | 2019-09-16 06:50:00 |
| Nrc Rpt Datetime | 2019-09-16 08:00:00 |
| Nrc Rpt Num | 1258346 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Webster Station |
| Segment Name | Ba 25, Webster To Baytown 16 Inch Crude Line |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77598 |
| Onshore City Name | Webster |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Webster Stati |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 3 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Meter/prover |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Pinhole |
| 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 | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 114 |
| Est Cost Prop Damage | 100000 |
| Est Cost Emergency | 500000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 600114 |
| Accident Psig | 10 |
| 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 | No |
| Scada Conf 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 | Incident did not involved occ. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | Internal Corrosion |
| Internal External | Internal Corrosion |
| Int Visual Exam Results | Localized Pitting |
| Int Microbiological Ind | Yes |
| Int Field Exam Basis Ind | Yes |
| Int Metallurgical Basis Ind | Yes |
| Int Low Point Pipe Loc Ind | Yes |
| Corrosion Inhibitors | Yes |
| Corrosion Lining | No |
| Cleaning Dewatering | Not Applicable - Not Mainline Pipe |
| Corrosion Coupons | Yes |
| Preparer Name | J** M********* |
| Preparer Title | Pipeline Safety Advisor |
| Preparer Email | J*****************@e*********.com |
| Preparer Telephone | 832-624-6121 |
| Prepared Date | 2019-10-15 00:00:00 |
| Authorizer Name | C******* B* H******** |
| Authorizer Telephone | 832-624-7920 |
| Authorizer Title | Empco Sshe Manager |
| Authorizer Email | C*******************@e*********.com |
| Narrative | On the morning of september 16, 2019, local operating personnel discovered crude near the 16" meter skid at empco's webster station. The station was shutdown and isolated. The source of the crude was identified as internal corrosion on the bottom of a partially buried strainer. The site was cleaned up and restored and all spilled free product was recovered. A metallurgical analysis was performed and determined to be internal corrosion due to microbial induced corrosion. It was determined that, even though the strainer and associated piping was on the sites low point drain list for regular flushing, that the drain valve was clogged, preventing proper draining and flowing of the strainer. The strainer will be replaced with a new strainer and steps will be taken to verify that the sump is gaining during the low point drain flushing operations to assure flow through the strainer. |
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