Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-04-19 — TX
Operator
Chevron Pipe Line Co
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,500
Incident datetime
2019-04-19 22:44
Report number
Location
TX
Narrative
17:55 controller on duty receives sump overflow alarm at avon pump station which trips and locked out p2. Adjustments are made to keep richmond booster pump online to keep a mfl inspection tool moving. 17:57 controller calls operator at bethany station that is receiving the mfl inspection tool that the avon pump is down 18:10 operator calls controller when arriving at avon pump station. Sump is placed from auto into local to bring down sump levels 18:45 controller notifies op rep to inform him avon pump is down and flow rates/pressures are being monitored 19:48 controller spoke with operator on site at avon pump station who stated that the sump level is decreasing at a slower rate than expected 20:57 operator calls controller notifying that a second employee is at avon pump station to assist with the sump pump 22:44 operator identifies that the sump pump at avon pump station is decreasing at a slower rate because of a thermal pressure relief valve on the suction header of the pump prematurely opening, causing the sump to fill sump to overflow. Prv was isolated for repairs. 00:25 operator called control and said he was going to test shutdown switch on overflow p2 went down immediately.
Detailed record list
Report Received Date
2019-05-17 00:00:00
Iyear
2019
Report Number
20190160
Supplemental Number
32730
Report Type
Supplemental Final
Operator Id
2731
Name
Chevron Pipe Line Co
Operator Street Address
1400 Smith Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2019-04-19 21:00:00
Location Latitude
38.02178
Location Longitude
-122.06197
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Mixture Of Refined Products (Transmix Or Other Mixture)
Unintentional Release Bbls
15.5
Recovered Bbls
15.5
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2019-04-19 22:44:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Thermal Relief Valve Failure To Sump During Ili Run
On Site Datetime
2019-04-19 22:44:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Bay Area Products Line/avon Pump Station
Segment Name
Cal0002
Onshore State Abbreviation
Ca
Onshore Postal Code
94553
Onshore City Name
Martinez
Onshore County Name
Contra Costa
Designated Location
Milepost/valve Station
Designated Name
Avon Pump Sta
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Other
Incident Area Details
Sta Sump: All Product Contained In Sump
Depth Of Cover
Unknown
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
3/4" Thermal Relief Valve Failed. Trv Opened At A Pressure Below The Trv Set Pressure, Causing Product To Flow Into The Station Sump During An Ili Tool Run. All Hydrocarbon Liquid Was Contained Within Sump System.
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
No
Est Cost Oper Paid
0
Est Cost Gas Released
0
Est Cost Prop Damage
1500
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
1500
Accident Psig
1024
Mop Psig
1345
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
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
Mechanical failure of the thermal relief valve spring. The pipeline was operating within normal operating limits and the failure was not related to pipeline operations.
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
Relief Valve Ind
Yes
Eq Additional Other Ind
Yes
Eq Additional Other Details
3/4" Thermal Relief Valve Released Below Set Point
Preparer Name
D**** W* M********
Preparer Title
Phmsa Program Manager
Preparer Email
D**************@c******.com
Preparer Telephone
8328542641
Preparer Fax
7133725968
Prepared Date
2019-09-19 00:00:00
Authorizer Name
D**** W* M********
Authorizer Telephone
8328542641
Authorizer Title
Phmsa Program Manager
Authorizer Email
D**************@c******.com
Narrative
17:55 controller on duty receives sump overflow alarm at avon pump station which trips and locked out p2. Adjustments are made to keep richmond booster pump online to keep a mfl inspection tool moving. 17:57 controller calls operator at bethany station that is receiving the mfl inspection tool that the avon pump is down 18:10 operator calls controller when arriving at avon pump station. Sump is placed from auto into local to bring down sump levels 18:45 controller notifies op rep to inform him avon pump is down and flow rates/pressures are being monitored 19:48 controller spoke with operator on site at avon pump station who stated that the sump level is decreasing at a slower rate than expected 20:57 operator calls controller notifying that a second employee is at avon pump station to assist with the sump pump 22:44 operator identifies that the sump pump at avon pump station is decreasing at a slower rate because of a thermal pressure relief valve on the suction header of the pump prematurely opening, causing the sump to fill sump to overflow. Prv was isolated for repairs. 00:25 operator called control and said he was going to test shutdown switch on overflow p2 went down immediately.
| Report Received Date | 2019-05-17 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190160 |
| Supplemental Number | 32730 |
| Report Type | Supplemental Final |
| Operator Id | 2731 PHMSA Enforcement |
| Name | Chevron Pipe Line Co |
| Operator Street Address | 1400 Smith Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2019-04-19 21:00:00 |
| Location Latitude | 38.02178 Google Maps OpenStreetMap |
| Location Longitude | -122.06197 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Mixture Of Refined Products (Transmix Or Other Mixture) |
| Unintentional Release Bbls | 15.5 |
| Recovered Bbls | 15.5 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2019-04-19 22:44:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Thermal Relief Valve Failure To Sump During Ili Run |
| On Site Datetime | 2019-04-19 22:44:00 |
| 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 | Bay Area Products Line/avon Pump Station |
| Segment Name | Cal0002 |
| Onshore State Abbreviation | Ca |
| Onshore Postal Code | 94553 |
| Onshore City Name | Martinez |
| Onshore County Name | Contra Costa |
| Designated Location | Milepost/valve Station |
| Designated Name | Avon Pump Sta |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Other |
| Incident Area Details | Sta Sump: All Product Contained In Sump |
| Depth Of Cover | Unknown |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Valve |
| Valve Type | Relief Valve |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | 3/4" Thermal Relief Valve Failed. Trv Opened At A Pressure Below The Trv Set Pressure, Causing Product To Flow Into The Station Sump During An Ili Tool Run. All Hydrocarbon Liquid Was Contained Within Sump System. |
| 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 | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 0 |
| Est Cost Prop Damage | 1500 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 1500 |
| Accident Psig | 1024 |
| Mop Psig | 1345 |
| 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 | 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 | Mechanical failure of the thermal relief valve spring. The pipeline was operating within normal operating limits and the failure was not related to pipeline operations. |
| 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 |
| Relief Valve Ind | Yes |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | 3/4" Thermal Relief Valve Released Below Set Point |
| Preparer Name | D**** W* M******** |
| Preparer Title | Phmsa Program Manager |
| Preparer Email | D**************@c******.com |
| Preparer Telephone | 8328542641 |
| Preparer Fax | 7133725968 |
| Prepared Date | 2019-09-19 00:00:00 |
| Authorizer Name | D**** W* M******** |
| Authorizer Telephone | 8328542641 |
| Authorizer Title | Phmsa Program Manager |
| Authorizer Email | D**************@c******.com |
| Narrative | 17:55 controller on duty receives sump overflow alarm at avon pump station which trips and locked out p2. Adjustments are made to keep richmond booster pump online to keep a mfl inspection tool moving. 17:57 controller calls operator at bethany station that is receiving the mfl inspection tool that the avon pump is down 18:10 operator calls controller when arriving at avon pump station. Sump is placed from auto into local to bring down sump levels 18:45 controller notifies op rep to inform him avon pump is down and flow rates/pressures are being monitored 19:48 controller spoke with operator on site at avon pump station who stated that the sump level is decreasing at a slower rate than expected 20:57 operator calls controller notifying that a second employee is at avon pump station to assist with the sump pump 22:44 operator identifies that the sump pump at avon pump station is decreasing at a slower rate because of a thermal pressure relief valve on the suction header of the pump prematurely opening, causing the sump to fill sump to overflow. Prv was isolated for repairs. 00:25 operator called control and said he was going to test shutdown switch on overflow p2 went down immediately. |
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