Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-09-16 — TX
Operator
Targa Downstream Llc
Cause
Equipment Failure
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)
$0
Incident datetime
2020-09-16 22:40
Report number
Location
TX
Narrative
At 20:00 hours (09/16/2020), controllers received alarm indicating esd870001 at pump station 12 had closed (un-commanded). Controllers dispatched technicians to site to investigate. Upon arrival, technicians discovered issue with transmitter. Technicians diverted flow around the esd valve (through pig launcher) to maintain safe operating pressure on system. Once transmitter was repaired, technicians attempted to equalize the differential pressure across esd870001 through the pig trap to resume product flow. Small leak on 1/2" stainless steel tubing was found on the trap kicker valve. Technicians were unable to close valve before tubing fitting failed, creating a vapor cloud that forced evacuation of the site. Valves upstream and downstream of the pump station were closed to limit product release. As a precaution, emergency responders were called to site and briefly closed hwy 150 to traffic when vapor cloud shifted direction toward the highway (09/17/2020: 02:45 - 03:00). Once product release ended, technicians were able to return product flow to normal and repair tubing on mov at the launcher kicker valve. The tubing failure appeared to be caused by an over-tightening of the fitting.
Detailed record list
Report Received Date
2020-10-08 00:00:00
Iyear
2020
Report Number
20200274
Supplemental Number
34392
Report Type
Supplemental Final
Operator Id
39823
Name
Targa Downstream Llc
Operator Street Address
811 Louisiana St. Suite 2100
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2020-09-16 22:40:00
Location Latitude
30.52542
Location Longitude
-95.064933
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Raw Product / Y-Grade
Unintentional Release Bbls
214
Intentional Release Bbls
0
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
2020-09-16 22:40:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-09-16 22:40:00
Restart Datetime
2020-09-17 08:45:00
On Site Datetime
2020-09-16 21:30:00
Nrc Rpt Datetime
2020-09-17 03:19:00
Nrc Rpt Num
1287564
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Grand Prix Pipeline South (Gpx-S)
Segment Name
Pump Station 12
Onshore State Abbreviation
Tx
Onshore Postal Code
77371
Onshore City Name
Not Within A Municipality
Onshore County Name
San Jacinto
Designated Location
Milepost/valve Station
Designated Name
Valve Station
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
Tubing
Installation Year
2019
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Leak
Leak Type
Connection Failure
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
4044
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
4044
Accident Psig
744
Mop Psig
1440
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
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
No
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
Technicians were dispatched to site in response to a faulty transmitter. Release occurred after technicians were on site.
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
Other Control Relief Ind
Yes
Other Control Relief Details
Tubing Fitting Failure
Additional Installation Ind
Yes
Preparer Name
S** G*****
Preparer Title
Compliance Specialist
Preparer Email
S******@t*************.com
Preparer Telephone
337-794-8247
Preparer Fax
337-583-4630
Prepared Date
2020-10-16 00:00:00
Authorizer Name
S** G*****
Authorizer Telephone
337-794-8247
Authorizer Title
Compliance Specialist
Authorizer Email
S******@t*************.com
Narrative
At 20:00 hours (09/16/2020), controllers received alarm indicating esd870001 at pump station 12 had closed (un-commanded). Controllers dispatched technicians to site to investigate. Upon arrival, technicians discovered issue with transmitter. Technicians diverted flow around the esd valve (through pig launcher) to maintain safe operating pressure on system. Once transmitter was repaired, technicians attempted to equalize the differential pressure across esd870001 through the pig trap to resume product flow. Small leak on 1/2" stainless steel tubing was found on the trap kicker valve. Technicians were unable to close valve before tubing fitting failed, creating a vapor cloud that forced evacuation of the site. Valves upstream and downstream of the pump station were closed to limit product release. As a precaution, emergency responders were called to site and briefly closed hwy 150 to traffic when vapor cloud shifted direction toward the highway (09/17/2020: 02:45 - 03:00). Once product release ended, technicians were able to return product flow to normal and repair tubing on mov at the launcher kicker valve. The tubing failure appeared to be caused by an over-tightening of the fitting.
| Report Received Date | 2020-10-08 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200274 |
| Supplemental Number | 34392 |
| Report Type | Supplemental Final |
| Operator Id | 39823 PHMSA Enforcement |
| Name | Targa Downstream Llc |
| Operator Street Address | 811 Louisiana St. Suite 2100 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2020-09-16 22:40:00 |
| Location Latitude | 30.52542 Google Maps OpenStreetMap |
| Location Longitude | -95.064933 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Other Hvl |
| Commodity Details | Raw Product / Y-Grade |
| Unintentional Release Bbls | 214 |
| Intentional Release Bbls | 0 |
| 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 | 2020-09-16 22:40:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-09-16 22:40:00 |
| Restart Datetime | 2020-09-17 08:45:00 |
| On Site Datetime | 2020-09-16 21:30:00 |
| Nrc Rpt Datetime | 2020-09-17 03:19:00 |
| Nrc Rpt Num | 1287564 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Grand Prix Pipeline South (Gpx-S) |
| Segment Name | Pump Station 12 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77371 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | San Jacinto |
| Designated Location | Milepost/valve Station |
| Designated Name | Valve Station |
| 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 | Tubing |
| Installation Year | 2019 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Leak |
| Leak Type | Connection Failure |
| 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 | 4044 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 4044 |
| Accident Psig | 744 |
| Mop Psig | 1440 |
| 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 | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | No |
| 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 | Technicians were dispatched to site in response to a faulty transmitter. Release occurred after technicians were on site. |
| 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 |
| Other Control Relief Ind | Yes |
| Other Control Relief Details | Tubing Fitting Failure |
| Additional Installation Ind | Yes |
| Preparer Name | S** G***** |
| Preparer Title | Compliance Specialist |
| Preparer Email | S******@t*************.com |
| Preparer Telephone | 337-794-8247 |
| Preparer Fax | 337-583-4630 |
| Prepared Date | 2020-10-16 00:00:00 |
| Authorizer Name | S** G***** |
| Authorizer Telephone | 337-794-8247 |
| Authorizer Title | Compliance Specialist |
| Authorizer Email | S******@t*************.com |
| Narrative | At 20:00 hours (09/16/2020), controllers received alarm indicating esd870001 at pump station 12 had closed (un-commanded). Controllers dispatched technicians to site to investigate. Upon arrival, technicians discovered issue with transmitter. Technicians diverted flow around the esd valve (through pig launcher) to maintain safe operating pressure on system. Once transmitter was repaired, technicians attempted to equalize the differential pressure across esd870001 through the pig trap to resume product flow. Small leak on 1/2" stainless steel tubing was found on the trap kicker valve. Technicians were unable to close valve before tubing fitting failed, creating a vapor cloud that forced evacuation of the site. Valves upstream and downstream of the pump station were closed to limit product release. As a precaution, emergency responders were called to site and briefly closed hwy 150 to traffic when vapor cloud shifted direction toward the highway (09/17/2020: 02:45 - 03:00). Once product release ended, technicians were able to return product flow to normal and repair tubing on mov at the launcher kicker valve. The tubing failure appeared to be caused by an over-tightening of the fitting. |
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