Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2024-08-06 — TX
Operator
Exxonmobil Pipeline Company Llc
Cause
Equipment Failure
Commodity
Crude Oil
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$0
Incident datetime
2024-08-06 00:00 UTC
Report number
Location
TX
Narrative
Incident summary: on july 6, 2024, at approximately 07:30 am, a station operator doing a daily station walk around found the station sump had overflowed to soil. - station operator notified the supervisor, occ, and the sump was manually pumped out and monitored to ensure the level did not rise unexpectedly. - no alarms for sump ehl or station lockout were received in occ or on local hmi screen. Sump pump was found in auto setting, but the sump pump was not running when found. - after taking measurements and checking depth of pooling, engineering ran calculations and determined the release volume to be 40.633 gallons. Investigation findings: magnetrol switch did not function to automatically start sump pump. - this magnetrol switch is on a semi-annual inspection and maintenance schedule. - this switch passed the previous semi-annual inspection remediation: all contaminated soil was removed, placed into roll off boxes, and disposed of properly. Preventing re-occurrence: - magnetrol assembly replaced and tested with water. - added radar level gauge in parallel with magnetrol switch for occ sump level alarm as a secondary safeguard.
Detailed record list
Report Received Date
2024-08-06 00:00:00
Iyear
2024
Report Number
20240184
Supplemental Number
39867
Report Type
Original Final
Operator Id
4906
Name
Exxonmobil Pipeline Company Llc
Operator Street Address
22777 Springwoods Village Parkway E2.2b-Emp
Operator City Name
Spring
Operator State Abbreviation
TX
Operator Postal Code
77389
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
28.933762
Location Longitude
-95.312535
Commodity Released Type
Crude Oil
Unintentional Release Bbls
0.97
Recovered Bbls
0.97
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Status When Identified
Routine Shutdown
Communication State Fed Ind
No
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Quintana Station
Segment Name
Facility Sump
Onshore State Abbreviation
Tx
Onshore Postal Code
77541
Onshore City Name
Quintana
Onshore County Name
Brazoria
Designated Location
Milepost
Designated Name
0
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
Sump
Installation Year
1999
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Overfill Or Overflow
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
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
100
Est Cost Prop Damage
0
Est Cost Emergency
3000
Est Cost Environmental
10000
Est Cost Other
0
Prpty
13100
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
4
Mop Psig
720
Mop Cfr Section
Subpart E Pressure Test �195.406(A)(3)
Maop Established Date
1999-12-31 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
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
Occ did not receive any indications of a leak or any alarms associated with the sump that overfilled.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Instrumentation Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
Failed Magnetrol Switch
Preparer Name
R***** P S**********
Preparer Title
Dot Pipeline Safety Advisor
Preparer Email
R*******************@e*********.com
Preparer Telephone
618-267-9641
Prepared Date
2024-08-06 00:00:00
Authorizer Name
L**** E* B******
Authorizer Telephone
346-474-9151
Authorizer Title
Regulatory Compliance Supervisor
Authorizer Email
L**************@e*********.com
Narrative
Incident summary: on july 6, 2024, at approximately 07:30 am, a station operator doing a daily station walk around found the station sump had overflowed to soil. - station operator notified the supervisor, occ, and the sump was manually pumped out and monitored to ensure the level did not rise unexpectedly. - no alarms for sump ehl or station lockout were received in occ or on local hmi screen. Sump pump was found in auto setting, but the sump pump was not running when found. - after taking measurements and checking depth of pooling, engineering ran calculations and determined the release volume to be 40.633 gallons. Investigation findings: magnetrol switch did not function to automatically start sump pump. - this magnetrol switch is on a semi-annual inspection and maintenance schedule. - this switch passed the previous semi-annual inspection remediation: all contaminated soil was removed, placed into roll off boxes, and disposed of properly. Preventing re-occurrence: - magnetrol assembly replaced and tested with water. - added radar level gauge in parallel with magnetrol switch for occ sump level alarm as a secondary safeguard.
| Report Received Date | 2024-08-06 00:00:00 |
|---|---|
| Iyear | 2024 |
| Report Number | 20240184 |
| Supplemental Number | 39867 |
| Report Type | Original Final |
| Operator Id | 4906 PHMSA Enforcement |
| Name | Exxonmobil Pipeline Company Llc |
| Operator Street Address | 22777 Springwoods Village Parkway E2.2b-Emp |
| Operator City Name | Spring |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77389 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 28.933762 Google Maps OpenStreetMap |
| Location Longitude | -95.312535 Google Maps OpenStreetMap |
| Commodity Released Type | Crude Oil |
| Unintentional Release Bbls | 0.97 |
| Recovered Bbls | 0.97 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Status When Identified | Routine Shutdown |
| Communication State Fed Ind | No |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Quintana Station |
| Segment Name | Facility Sump |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77541 |
| Onshore City Name | Quintana |
| Onshore County Name | Brazoria |
| Designated Location | Milepost |
| Designated Name | 0 |
| 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 | Sump |
| Installation Year | 1999 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Overfill Or Overflow |
| 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 | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 100 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 3000 |
| Est Cost Environmental | 10000 |
| Est Cost Other | 0 |
| Prpty | 13100 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 4 |
| Mop Psig | 720 |
| Mop Cfr Section | Subpart E Pressure Test �195.406(A)(3) View CFR 49 §192 |
| Maop Established Date | 1999-12-31 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 | 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 | Occ did not receive any indications of a leak or any alarms associated with the sump that overfilled. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Instrumentation Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Failed Magnetrol Switch |
| Preparer Name | R***** P S********** |
| Preparer Title | Dot Pipeline Safety Advisor |
| Preparer Email | R*******************@e*********.com |
| Preparer Telephone | 618-267-9641 |
| Prepared Date | 2024-08-06 00:00:00 |
| Authorizer Name | L**** E* B****** |
| Authorizer Telephone | 346-474-9151 |
| Authorizer Title | Regulatory Compliance Supervisor |
| Authorizer Email | L**************@e*********.com |
| Narrative | Incident summary: on july 6, 2024, at approximately 07:30 am, a station operator doing a daily station walk around found the station sump had overflowed to soil. - station operator notified the supervisor, occ, and the sump was manually pumped out and monitored to ensure the level did not rise unexpectedly. - no alarms for sump ehl or station lockout were received in occ or on local hmi screen. Sump pump was found in auto setting, but the sump pump was not running when found. - after taking measurements and checking depth of pooling, engineering ran calculations and determined the release volume to be 40.633 gallons. Investigation findings: magnetrol switch did not function to automatically start sump pump. - this magnetrol switch is on a semi-annual inspection and maintenance schedule. - this switch passed the previous semi-annual inspection remediation: all contaminated soil was removed, placed into roll off boxes, and disposed of properly. Preventing re-occurrence: - magnetrol assembly replaced and tested with water. - added radar level gauge in parallel with magnetrol switch for occ sump level alarm as a secondary safeguard. |
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