Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2023-08-09 — TX
Operator
Mid - Valley Pipeline Co
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$171,935
Incident datetime
2023-08-09 00:00 UTC
Report number
Location
TX
Narrative
On 7/11/23 at 04:18 the control center received an lel, seal failure and fire suppression system alarm for pump unit 2120 at longview station. The controller shut the pump down and notified local operations personnel. Upon arrival at the station, field personnel observed a release of approximately, 2 gallons of crude oil into secondary containment and noted that the fire suppression system had activated. A mist of crude oil had ignited due to contact with ancillary pump components that were hot. The facility dry chemical fire suppression system activated and extinguished the fire with minimal damage. An investigation determined the release was due to a pump seal failure. The seal failure occurred because of coupling misalignment between the pump and the pump motor which caused vibration. Further, the multilin relay protective unit did not activate and shut the pump down due to vibration automatically as is intended. To prevent reoccurrence, operations is adding logic to shut the pump units down when the multilin loses communication and/or the multilin health check bit is faulted. An engineering analysis will be conducted to determine the best piping modifications to prevent coupling misalignment issues. The pump and motor are being repaired and will be reinstalled along with a new multilin relay protective unit.
Detailed record list
Report Received Date
2023-08-09 00:00:00
Iyear
2023
Report Number
20230182
Supplemental Number
38376
Report Type
Supplemental Final
Operator Id
12470
Name
Mid - Valley Pipeline Co
Operator Street Address
1300 Main Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
32.483611
Location Longitude
-94.830278
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.1
Recovered Bbls
0.1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations)
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
1372721
Additional Nrc Report Numbers
1375789
Ignite Ind
Yes
How Extinguished
Other
How Extinguished Other Detail
Automatic Fire Suppression System
Consumed By Fire In Barrels
0.01
Explode Ind
No
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Longview Station
Segment Name
Unit 2120
Onshore State Abbreviation
Tx
Onshore Postal Code
75604
Onshore City Name
Longview
Onshore County Name
Gregg
Designated Location
Milepost
Designated Name
0+00
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Inside A Building
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pump
Pump Type
Centrifugal
Pump Service Type
Mainline
Installation Year
Unknown
Manufactured Year
Unknown
Material Involved
Material Other Than Carbon Steel
Material Details
Viton
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
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
4
Est Cost Prop Damage
171935
Est Cost Emergency
4765
Est Cost Environmental
0
Est Cost Other
0
Prpty
176704
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
558
Mop Psig
936
Mop Cfr Section
Internal Design Pressure �195.406(A)(1)
Maop Established Date
2021-05-03 00:00:00
Maop Reversal Flow Ind
No
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
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
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
Additional Vibration Ind
Yes
Ief Addl Misalignment Ind
Yes
Eqf Control Releaf Ind
Yes
Preparer Name
T*** N*******
Preparer Title
Director - Regulatory Compliance
Preparer Email
T************@e*************.com
Preparer Telephone
713-989-7126
Prepared Date
2023-08-10 00:00:00
Authorizer Name
T*** N*******
Authorizer Telephone
713-989-7126
Authorizer Title
Director - Regulatory Compliance
Authorizer Email
T************@e*************.com
Narrative
On 7/11/23 at 04:18 the control center received an lel, seal failure and fire suppression system alarm for pump unit 2120 at longview station. The controller shut the pump down and notified local operations personnel. Upon arrival at the station, field personnel observed a release of approximately, 2 gallons of crude oil into secondary containment and noted that the fire suppression system had activated. A mist of crude oil had ignited due to contact with ancillary pump components that were hot. The facility dry chemical fire suppression system activated and extinguished the fire with minimal damage. An investigation determined the release was due to a pump seal failure. The seal failure occurred because of coupling misalignment between the pump and the pump motor which caused vibration. Further, the multilin relay protective unit did not activate and shut the pump down due to vibration automatically as is intended. To prevent reoccurrence, operations is adding logic to shut the pump units down when the multilin loses communication and/or the multilin health check bit is faulted. An engineering analysis will be conducted to determine the best piping modifications to prevent coupling misalignment issues. The pump and motor are being repaired and will be reinstalled along with a new multilin relay protective unit.
| Report Received Date | 2023-08-09 00:00:00 |
|---|---|
| Iyear | 2023 |
| Report Number | 20230182 |
| Supplemental Number | 38376 |
| Report Type | Supplemental Final |
| Operator Id | 12470 PHMSA Enforcement |
| Name | Mid - Valley Pipeline Co |
| Operator Street Address | 1300 Main Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 32.483611 Google Maps OpenStreetMap |
| Location Longitude | -94.830278 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.1 |
| Recovered Bbls | 0.1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Or Pack Calculations) |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1372721 NRC Report How to search |
| Additional Nrc Report Numbers | 1375789 |
| Ignite Ind | Yes |
| How Extinguished | Other |
| How Extinguished Other Detail | Automatic Fire Suppression System |
| Consumed By Fire In Barrels | 0.01 |
| Explode Ind | No |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Longview Station |
| Segment Name | Unit 2120 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 75604 |
| Onshore City Name | Longview |
| Onshore County Name | Gregg |
| Designated Location | Milepost |
| Designated Name | 0+00 |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Inside A Building |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pump |
| Pump Type | Centrifugal |
| Pump Service Type | Mainline |
| Installation Year | Unknown |
| Manufactured Year | Unknown |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Viton |
| 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 | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 4 |
| Est Cost Prop Damage | 171935 |
| Est Cost Emergency | 4765 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 176704 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 558 |
| Mop Psig | 936 |
| Mop Cfr Section | Internal Design Pressure �195.406(A)(1) View CFR 49 §192 |
| Maop Established Date | 2021-05-03 00:00:00 |
| Maop Reversal Flow Ind | No |
| 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 | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| 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 |
| Additional Vibration Ind | Yes |
| Ief Addl Misalignment Ind | Yes |
| Eqf Control Releaf Ind | Yes |
| Preparer Name | T*** N******* |
| Preparer Title | Director - Regulatory Compliance |
| Preparer Email | T************@e*************.com |
| Preparer Telephone | 713-989-7126 |
| Prepared Date | 2023-08-10 00:00:00 |
| Authorizer Name | T*** N******* |
| Authorizer Telephone | 713-989-7126 |
| Authorizer Title | Director - Regulatory Compliance |
| Authorizer Email | T************@e*************.com |
| Narrative | On 7/11/23 at 04:18 the control center received an lel, seal failure and fire suppression system alarm for pump unit 2120 at longview station. The controller shut the pump down and notified local operations personnel. Upon arrival at the station, field personnel observed a release of approximately, 2 gallons of crude oil into secondary containment and noted that the fire suppression system had activated. A mist of crude oil had ignited due to contact with ancillary pump components that were hot. The facility dry chemical fire suppression system activated and extinguished the fire with minimal damage. An investigation determined the release was due to a pump seal failure. The seal failure occurred because of coupling misalignment between the pump and the pump motor which caused vibration. Further, the multilin relay protective unit did not activate and shut the pump down due to vibration automatically as is intended. To prevent reoccurrence, operations is adding logic to shut the pump units down when the multilin loses communication and/or the multilin health check bit is faulted. An engineering analysis will be conducted to determine the best piping modifications to prevent coupling misalignment issues. The pump and motor are being repaired and will be reinstalled along with a new multilin relay protective unit. |
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