Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2017-09-02 — TX
Operator
Anr Pipeline Co
Cause
Incorrect Operation
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,000
Incident datetime
2017-09-02 04:20
Report number
Location
TX
Narrative
At 4:20am ct on september 2, 2017, the area manager received a call from a neighboring resident that gas was venting from the compressor station. Personnel were dispatched to investigate. Shortly after 4:29am, field personnel identified two valves incorrectly positioned from a previous operation. After these valves were correctly positioned, the relief valves stopped venting. It was determined that the 6" relief valves vented intermittently (due to pressure increasing and decreasing above and below the set point) for about 31 minutes when the pressure in the pipeline reached 850 psig. The event met the definition of incident based on an unintended gas release exceeding 3mmcf.
Detailed record list
Report Received Date
2017-09-29 00:00:00
Iyear
2017
Report Number
20170085
Supplemental Number
30004
Report Type
Supplemental Final
Operator Id
Name
Anr Pipeline Co
Operator Street Address
700 Louisiana Street Suite 700
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002
Local Datetime
2017-09-02 04:29:00
Location Latitude
41.6216
Location Longitude
-88.57943
Nrc Rpt Num
1189107
Nrc Rpt Datetime
2017-09-02 06:34:00
Commodity Released Type
Natural Gas
Unintentional Release
8900
Intentional Release
0
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Valves Repositioned To Stop Overpressure
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2017-09-02 04:20:00
On Site Datetime
2017-09-02 04:29:00
On Off Shore
Onshore
Onshore State Abbreviation
Il
Onshore Postal Code
60548
Onshore City Name
Sandwich
Onshore County Name
Kendall
Designated Location
Milepost
Designated Name
795
Pipe Fac Name
Sandwich Compressor Station
Segment Name
Southwest Main Line System - 100 Line
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
Interstate
System Part Involved
Onshore Compressor Station Equipment And Piping
Item Involved
Valve
Valve Type
Relief Valve
Installation Year
1949
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Gas Release Due To Activation Of A Relief Valve
Class Location Type
Class 1 Location
Could Be Hca
No
Pir Radius
518
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
25700
Est Cost Intentional Release
0
Est Cost Prop Damage
1000
Est Cost Emergency
2500
Est Cost Other
0
Prpty
29200
Accident Psig
856
Mop Psig
850
Mop Cfr Section
192.619(A)(2)
Accident Pressure
Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201
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
No
Accident Identifier
Notification From Public
Investigation Status
Yes, specify investigation result(s): (select all that apply)
Invest No Control Room Ind
Yes
Invest No Controller Ind
Yes
Invest Incorrect Procedure Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Pipeline Or Equipment Overpressured
Operation Type
Pipeline Or Equipment Overpressured
Related No Proc Ind
Yes
Category Type
Normal Operating Conditions
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
J*** C***
Preparer Title
Sr. Regulatory Compliance Specialist
Preparer Email
J********@t**********.com
Preparer Telephone
248-205-4522
Preparer Fax
248-205-4622
Authorizer Name
J*** C***
Authorizer Title
Sr. Regulatory Compliance Specialist
Authorizer Telephone
248-205-4522
Authorizer Email
J********@t**********.com
Narrative
At 4:20am ct on september 2, 2017, the area manager received a call from a neighboring resident that gas was venting from the compressor station. Personnel were dispatched to investigate. Shortly after 4:29am, field personnel identified two valves incorrectly positioned from a previous operation. After these valves were correctly positioned, the relief valves stopped venting. It was determined that the 6" relief valves vented intermittently (due to pressure increasing and decreasing above and below the set point) for about 31 minutes when the pressure in the pipeline reached 850 psig. The event met the definition of incident based on an unintended gas release exceeding 3mmcf.
| Report Received Date | 2017-09-29 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170085 |
| Supplemental Number | 30004 |
| Report Type | Supplemental Final |
| Operator Id | 405 PHMSA Enforcement |
| Name | Anr Pipeline Co |
| Operator Street Address | 700 Louisiana Street Suite 700 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002 |
| Local Datetime | 2017-09-02 04:29:00 |
| Location Latitude | 41.6216 Google Maps OpenStreetMap |
| Location Longitude | -88.57943 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1189107 NRC Report How to search |
| Nrc Rpt Datetime | 2017-09-02 06:34:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 8900 |
| Intentional Release | 0 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Valves Repositioned To Stop Overpressure |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2017-09-02 04:20:00 |
| On Site Datetime | 2017-09-02 04:29:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Il |
| Onshore Postal Code | 60548 |
| Onshore City Name | Sandwich |
| Onshore County Name | Kendall |
| Designated Location | Milepost |
| Designated Name | 795 |
| Pipe Fac Name | Sandwich Compressor Station |
| Segment Name | Southwest Main Line System - 100 Line |
| 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 | Interstate |
| System Part Involved | Onshore Compressor Station Equipment And Piping |
| Item Involved | Valve |
| Valve Type | Relief Valve |
| Installation Year | 1949 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Gas Release Due To Activation Of A Relief Valve |
| Class Location Type | Class 1 Location |
| Could Be Hca | No |
| Pir Radius | 518 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 25700 |
| Est Cost Intentional Release | 0 |
| Est Cost Prop Damage | 1000 |
| Est Cost Emergency | 2500 |
| Est Cost Other | 0 |
| Prpty | 29200 |
| Accident Psig | 856 |
| Mop Psig | 850 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Accident Pressure | Pressure Exceeded Maop, But Did Not Exceed The Applicable Allowance In 192.201 |
| 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 | No |
| Accident Identifier | Notification From Public |
| Investigation Status | Yes, specify investigation result(s): (select all that apply) |
| Invest No Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Invest Incorrect Procedure Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Pipeline Or Equipment Overpressured |
| Operation Type | Pipeline Or Equipment Overpressured |
| Related No Proc Ind | Yes |
| Category Type | Normal Operating Conditions |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | J*** C*** |
| Preparer Title | Sr. Regulatory Compliance Specialist |
| Preparer Email | J********@t**********.com |
| Preparer Telephone | 248-205-4522 |
| Preparer Fax | 248-205-4622 |
| Authorizer Name | J*** C*** |
| Authorizer Title | Sr. Regulatory Compliance Specialist |
| Authorizer Telephone | 248-205-4522 |
| Authorizer Email | J********@t**********.com |
| Narrative | At 4:20am ct on september 2, 2017, the area manager received a call from a neighboring resident that gas was venting from the compressor station. Personnel were dispatched to investigate. Shortly after 4:29am, field personnel identified two valves incorrectly positioned from a previous operation. After these valves were correctly positioned, the relief valves stopped venting. It was determined that the 6" relief valves vented intermittently (due to pressure increasing and decreasing above and below the set point) for about 31 minutes when the pressure in the pipeline reached 850 psig. The event met the definition of incident based on an unintended gas release exceeding 3mmcf. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA