Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2015-09-09 — OH
Operator
Marathon Pipe Line Llc
Cause
Incorrect Operation
Commodity
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$100
Incident datetime
2015-09-09 09:00
Report number
Location
OH
Narrative
Mpl personnel arrived on site at approximately 09:00 cst to repack the highland bayou bv. The block valve was closed and the body relief valve was then opened to remove pressure from the block valve. The employee believed the body relief valve to be malfunctioning and did not close the valve. Personnel then left the area due to safety concerns. The line was shut down and once the area was deemed safe, pressure was removed from the line. The fitting was replaced while the line was down and then returned to normal operations. No impact to soil. Upon further investigation, the body relief valve was determined to be fit for service. The cause of the incident is considered to be incorrect operations. Mpl reported the quantity released as "unknown" on the initial nrc report (#1127964). A second report (#1128048) was made to update the volume to 50 barrels. Additionally, the estimated 1,338 bbls that were released during the controlled blowdown to remove pressure from the line were done so through a temporary flare system. 5/7/19 - updated gps coordinates in part a
Detailed record list
Report Received Date
2015-10-07 00:00:00
Iyear
2015
Report Number
20150356
Supplemental Number
32090
Report Type
Supplemental Final
Operator Id
32147
Name
Marathon Pipe Line Llc
Operator Street Address
539 South Main Street
Operator City Name
Findlay
Operator State Abbreviation
OH
Operator Postal Code
45840
Local Datetime
2015-09-09 09:00:00
Location Latitude
29.336784
Location Longitude
-94.95822
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
75
Intentional Release Bbls
1338
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2015-09-09 09:00:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-09-09 10:33:00
Restart Datetime
2015-09-11 20:06:00
On Site Datetime
2015-09-09 09:00:00
Nrc Rpt Datetime
2015-09-09 10:24:00
Nrc Rpt Num
1127964
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Galveston Bay Refinery - Chocolate Bayou 8 Inch
Segment Name
Galveston Bay Refinery - Chocolate Bayou 8 Inch
Onshore State Abbreviation
Tx
Onshore Postal Code
77563
Onshore City Name
Hitchcock
Onshore County Name
Galveston
Designated Location
Milepost/valve Station
Designated Name
153+16
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
Unknown
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Other
Release Type Details
The Body Relief Valve Was Replaced. Upon Further Investigation, The Release Was Due To Incorrect Operations.
Wildlife Impact Ind
No
Soil Contamination
No
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
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
1200
Est Cost Prop Damage
100
Est Cost Emergency
70925
Est Cost Environmental
0
Est Cost Other
0
Prpty
72225
Accident Psig
1005
Mop Psig
2175
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
21813
Internal Inspection Ind
Yes
Operation Complications 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
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 Schedule Ind
Yes
Invest No Schedule Ind Details
Field Notified Operation Center Immediately After Release Occurred.
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Incorrect Operation
Cause Details
Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure
Operation Type
Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure
Related Inadequate Proc Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
D******* S***
Preparer Title
Hes Professional
Preparer Email
D*****@m****************.com
Preparer Telephone
419-421-2121
Prepared Date
2019-05-07 00:00:00
Authorizer Name
R****** W* B*****
Authorizer Telephone
419-421-2121
Authorizer Title
Regulatory And Compliance Supervisor
Authorizer Email
R*******@m****************.com
Narrative
Mpl personnel arrived on site at approximately 09:00 cst to repack the highland bayou bv. The block valve was closed and the body relief valve was then opened to remove pressure from the block valve. The employee believed the body relief valve to be malfunctioning and did not close the valve. Personnel then left the area due to safety concerns. The line was shut down and once the area was deemed safe, pressure was removed from the line. The fitting was replaced while the line was down and then returned to normal operations. No impact to soil. Upon further investigation, the body relief valve was determined to be fit for service. The cause of the incident is considered to be incorrect operations. Mpl reported the quantity released as "unknown" on the initial nrc report (#1127964). A second report (#1128048) was made to update the volume to 50 barrels. Additionally, the estimated 1,338 bbls that were released during the controlled blowdown to remove pressure from the line were done so through a temporary flare system. 5/7/19 - updated gps coordinates in part a
| Report Received Date | 2015-10-07 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150356 |
| Supplemental Number | 32090 |
| Report Type | Supplemental Final |
| Operator Id | 32147 PHMSA Enforcement |
| Name | Marathon Pipe Line Llc |
| Operator Street Address | 539 South Main Street |
| Operator City Name | Findlay |
| Operator State Abbreviation | OH |
| Operator Postal Code | 45840 |
| Local Datetime | 2015-09-09 09:00:00 |
| Location Latitude | 29.336784 Google Maps OpenStreetMap |
| Location Longitude | -94.95822 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 75 |
| Intentional Release Bbls | 1338 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2015-09-09 09:00:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-09-09 10:33:00 |
| Restart Datetime | 2015-09-11 20:06:00 |
| On Site Datetime | 2015-09-09 09:00:00 |
| Nrc Rpt Datetime | 2015-09-09 10:24:00 |
| Nrc Rpt Num | 1127964 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Galveston Bay Refinery - Chocolate Bayou 8 Inch |
| Segment Name | Galveston Bay Refinery - Chocolate Bayou 8 Inch |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77563 |
| Onshore City Name | Hitchcock |
| Onshore County Name | Galveston |
| Designated Location | Milepost/valve Station |
| Designated Name | 153+16 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | Unknown |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Other |
| Release Type Details | The Body Relief Valve Was Replaced. Upon Further Investigation, The Release Was Due To Incorrect Operations. |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| 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 | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 1200 |
| Est Cost Prop Damage | 100 |
| Est Cost Emergency | 70925 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 72225 |
| Accident Psig | 1005 |
| Mop Psig | 2175 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 21813 |
| Internal Inspection Ind | Yes |
| Operation Complications 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 | 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 Schedule Ind | Yes |
| Invest No Schedule Ind Details | Field Notified Operation Center Immediately After Release Occurred. |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Incorrect Operation |
| Cause Details | Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure |
| Operation Type | Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure |
| Related Inadequate Proc Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | D******* S*** |
| Preparer Title | Hes Professional |
| Preparer Email | D*****@m****************.com |
| Preparer Telephone | 419-421-2121 |
| Prepared Date | 2019-05-07 00:00:00 |
| Authorizer Name | R****** W* B***** |
| Authorizer Telephone | 419-421-2121 |
| Authorizer Title | Regulatory And Compliance Supervisor |
| Authorizer Email | R*******@m****************.com |
| Narrative | Mpl personnel arrived on site at approximately 09:00 cst to repack the highland bayou bv. The block valve was closed and the body relief valve was then opened to remove pressure from the block valve. The employee believed the body relief valve to be malfunctioning and did not close the valve. Personnel then left the area due to safety concerns. The line was shut down and once the area was deemed safe, pressure was removed from the line. The fitting was replaced while the line was down and then returned to normal operations. No impact to soil. Upon further investigation, the body relief valve was determined to be fit for service. The cause of the incident is considered to be incorrect operations. Mpl reported the quantity released as "unknown" on the initial nrc report (#1127964). A second report (#1128048) was made to update the volume to 50 barrels. Additionally, the estimated 1,338 bbls that were released during the controlled blowdown to remove pressure from the line were done so through a temporary flare system. 5/7/19 - updated gps coordinates in part a |
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