Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2015-03-28 — TX
Operator
Enterprise Products Operating Llc
Cause
Equipment Failure
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$45,000
Incident datetime
2015-03-28 07:20
Report number
Location
TX
Narrative
On 3/28/2015 at 07:20 am, gas control received a call from a third party reporting a possible leak at the decordova compressor station and an enterprise technician was dispatched to the decordova compressor station. Upon the technicians arrival at approximately 08:10 am, the technician discovered that the unit suction valve on unit 810 did not completely close (90% closure) at time gas control remotely shut down compressor (scheduled shutdown). The technician manually shut the valve, thus ending the unintentional gas through the blow down stack. The valve was tested several times and found to be faulty with worn valve seats and a bad actuator. Unit 810 has been taken out of service until further notice (locked out-tagged out). A new valve and actuator have been ordered for replacement/repair. On 4/23/2015, new valve and actuator installation has been completed.
Detailed record list
Report Received Date
2015-04-17 00:00:00
Iyear
2015
Report Number
20150053
Supplemental Number
16740
Report Type
Supplemental Final
Operator Id
31618
Name
Enterprise Products Operating Llc
Operator Street Address
1100 Louisiana Street
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2015-03-28 11:20:00
Location Latitude
32.19562
Location Longitude
-97.444019
Nrc Rpt Num
1111962
Nrc Rpt Datetime
2015-03-28 11:30:00
Commodity Released Type
Natural Gas
Unintentional Release
7450
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2015-03-28 08:10:00
Still Shutdown Ind
Yes
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2015-03-28 07:20:00
On Site Datetime
2015-03-28 08:10:00
On Off Shore
Onshore
Onshore State Abbreviation
Tx
Onshore Postal Code
76048
Onshore City Name
Grandbury
Onshore County Name
Hood
Designated Location
Milepost
Designated Name
Decordova
Pipe Fac Name
North Texas Gas System
Segment Name
Line 225
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
805
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
18625
Est Cost Intentional Release
0
Est Cost Prop Damage
45000
Est Cost Emergency
500
Est Cost Other
0
Prpty
64125
Accident Psig
925
Mop Psig
1041
Mop Cfr Section
192.619(A)(1)
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
Yes
Accident Identifier
Notification From Public
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
No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary. Leak was detectable but did not meet alarm thresholds or reporting criteria by the controller in the control room; therefor, controller was not the cause nor a contributing factor to the incident. No other factors were determined requiring an investigation.
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
Compressor Unit 812 Suction Valve
Eq Additional Other Ind
Yes
Eq Additional Other Details
Valve Seats And Actuator Failure
Preparer Name
M****** D* S****
Preparer Title
Compliance Speciliest
Preparer Email
M******@e****.com
Preparer Telephone
713-381-5650
Authorizer Name
M****** D* S****
Authorizer Title
Compliance Speciliest
Authorizer Telephone
713-381-5650
Authorizer Email
M******@e****.com
Narrative
On 3/28/2015 at 07:20 am, gas control received a call from a third party reporting a possible leak at the decordova compressor station and an enterprise technician was dispatched to the decordova compressor station. Upon the technicians arrival at approximately 08:10 am, the technician discovered that the unit suction valve on unit 810 did not completely close (90% closure) at time gas control remotely shut down compressor (scheduled shutdown). The technician manually shut the valve, thus ending the unintentional gas through the blow down stack. The valve was tested several times and found to be faulty with worn valve seats and a bad actuator. Unit 810 has been taken out of service until further notice (locked out-tagged out). A new valve and actuator have been ordered for replacement/repair. On 4/23/2015, new valve and actuator installation has been completed.
| Report Received Date | 2015-04-17 00:00:00 |
|---|---|
| Iyear | 2015 |
| Report Number | 20150053 |
| Supplemental Number | 16740 |
| Report Type | Supplemental Final |
| Operator Id | 31618 PHMSA Enforcement |
| Name | Enterprise Products Operating Llc |
| Operator Street Address | 1100 Louisiana Street |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2015-03-28 11:20:00 |
| Location Latitude | 32.19562 Google Maps OpenStreetMap |
| Location Longitude | -97.444019 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1111962 NRC Report How to search |
| Nrc Rpt Datetime | 2015-03-28 11:30:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 7450 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2015-03-28 08:10:00 |
| Still Shutdown Ind | Yes |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2015-03-28 07:20:00 |
| On Site Datetime | 2015-03-28 08:10:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 76048 |
| Onshore City Name | Grandbury |
| Onshore County Name | Hood |
| Designated Location | Milepost |
| Designated Name | Decordova |
| Pipe Fac Name | North Texas Gas System |
| Segment Name | Line 225 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 805 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 18625 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 45000 |
| Est Cost Emergency | 500 |
| Est Cost Other | 0 |
| Prpty | 64125 |
| Accident Psig | 925 |
| Mop Psig | 1041 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | Yes |
| Accident Identifier | Notification From Public |
| 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 | No, the operator did not find that an investigation of the controller(s) actions or control room issues was necessary. Leak was detectable but did not meet alarm thresholds or reporting criteria by the controller in the control room; therefor, controller was not the cause nor a contributing factor to the incident. No other factors were determined requiring an investigation. |
| 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 | Compressor Unit 812 Suction Valve |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Valve Seats And Actuator Failure |
| Preparer Name | M****** D* S**** |
| Preparer Title | Compliance Speciliest |
| Preparer Email | M******@e****.com |
| Preparer Telephone | 713-381-5650 |
| Authorizer Name | M****** D* S**** |
| Authorizer Title | Compliance Speciliest |
| Authorizer Telephone | 713-381-5650 |
| Authorizer Email | M******@e****.com |
| Narrative | On 3/28/2015 at 07:20 am, gas control received a call from a third party reporting a possible leak at the decordova compressor station and an enterprise technician was dispatched to the decordova compressor station. Upon the technicians arrival at approximately 08:10 am, the technician discovered that the unit suction valve on unit 810 did not completely close (90% closure) at time gas control remotely shut down compressor (scheduled shutdown). The technician manually shut the valve, thus ending the unintentional gas through the blow down stack. The valve was tested several times and found to be faulty with worn valve seats and a bad actuator. Unit 810 has been taken out of service until further notice (locked out-tagged out). A new valve and actuator have been ordered for replacement/repair. On 4/23/2015, new valve and actuator installation has been completed. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA