Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2017-10-23 — OK
Operator
Explorer Pipeline 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)
$200,000
Incident datetime
2017-10-23 09:27
Report number
Location
OK
Narrative
On october 23, 2017 a resident first reported a petroleum odor smell off a common pipeline right of way that contained natural gas and petroleum products pipelines outside of houston, texas to a third party pipeline representative. The third party pipeline operator representative first notified an explorer pipeline representative on october 23, 2017 at approximately 09:13 central standard time (cst), at which time the information from the third party pipeline was obtained. Explorer pipeline notified the pipeline control center of the suspected leak in the common pipeline corridor at approximately 09:17. The control center immediately began verification and validity of the information with scada data, and the explorer pipeline representative proceeded to the location of the suspected leak site. Explorer pipeline personnel first arrived at approximately 09:27 and reported confirmation of a release to the control center at which time the pipeline was shut down at 09:28. The first call to the nrc was completed at 10:33. A follow up notification was provided to the nrc within 48 hours. Following the appropriate internal and external notifications, the pipeline was excavated and a leak from the 28 inch stopple blind flange was identified. A plidco flange leak clamp was installed, and preparations were made to cutout the stopple. The current release volume from continued remediation, soil excavation and soil sampling is 16.2 barrels. The stopple was cutout on november 1, 2017. The manufacturer and a third party evaluated the stopple. It was determined that the direct cause of the release was from damage to the gasket associated with the blind from original instillation in 1977.
Detailed record list
Report Received Date
2017-11-21 00:00:00
Iyear
2017
Report Number
20170382
Supplemental Number
32036
Report Type
Supplemental Final
Operator Id
4805
Name
Explorer Pipeline Co
Operator Street Address
Po Box 2650
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74101
Local Datetime
2017-10-23 09:13:00
Location Latitude
29.814804
Location Longitude
-95.186108
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
17.47
Recovered Bbls
17.47
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Public
Incident Identified Datetime
2017-10-23 09:27:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2017-10-23 09:28:00
Restart Datetime
2017-10-24 20:34:00
On Site Datetime
2017-10-23 09:27:00
Nrc Rpt Datetime
2017-10-23 10:33:00
Nrc Rpt Num
1194033
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Pasadena To Greenville
Segment Name
Pasadena To Greenville
Onshore State Abbreviation
Tx
Onshore Postal Code
77049
Onshore City Name
Houston
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Mp 72.8
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
77
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.)
Installation Year
1977
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
Yes
Remediation Ind
Yes
Groundwater Remed Ind
Yes
Soil Remed Ind
Yes
Water Contam Ind
Yes
Groundwater Contam Ind
Yes
Amount Released
1.1
Rel Water Name
Shallow Non-Drinking Ground Water Zone.
Could Be Hca
Yes
Commodity Reached Hca
Yes
High Pop Ind
Yes
High Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
114
Est Cost Prop Damage
200000
Est Cost Emergency
100000
Est Cost Environmental
2400000
Est Cost Other
0
Prpty
2700114
Accident Psig
470
Mop Psig
920
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
34373
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 Control Room Ind
Yes
Invest No Controller Ind
Yes
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
Gasket
Additional Installation Ind
Yes
Preparer Name
K**** B****
Preparer Title
Manager Dot And Regulatory Compliance
Preparer Email
K*****@e***.com
Preparer Telephone
9184935104
Prepared Date
2018-08-21 00:00:00
Authorizer Name
J** S****
Authorizer Telephone
9184935143
Authorizer Title
Director Hsse And Engineering
Authorizer Email
J*****@e***.com
Narrative
On october 23, 2017 a resident first reported a petroleum odor smell off a common pipeline right of way that contained natural gas and petroleum products pipelines outside of houston, texas to a third party pipeline representative. The third party pipeline operator representative first notified an explorer pipeline representative on october 23, 2017 at approximately 09:13 central standard time (cst), at which time the information from the third party pipeline was obtained. Explorer pipeline notified the pipeline control center of the suspected leak in the common pipeline corridor at approximately 09:17. The control center immediately began verification and validity of the information with scada data, and the explorer pipeline representative proceeded to the location of the suspected leak site. Explorer pipeline personnel first arrived at approximately 09:27 and reported confirmation of a release to the control center at which time the pipeline was shut down at 09:28. The first call to the nrc was completed at 10:33. A follow up notification was provided to the nrc within 48 hours. Following the appropriate internal and external notifications, the pipeline was excavated and a leak from the 28 inch stopple blind flange was identified. A plidco flange leak clamp was installed, and preparations were made to cutout the stopple. The current release volume from continued remediation, soil excavation and soil sampling is 16.2 barrels. The stopple was cutout on november 1, 2017. The manufacturer and a third party evaluated the stopple. It was determined that the direct cause of the release was from damage to the gasket associated with the blind from original instillation in 1977.
| Report Received Date | 2017-11-21 00:00:00 |
|---|---|
| Iyear | 2017 |
| Report Number | 20170382 |
| Supplemental Number | 32036 |
| Report Type | Supplemental Final |
| Operator Id | 4805 PHMSA Enforcement |
| Name | Explorer Pipeline Co |
| Operator Street Address | Po Box 2650 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74101 |
| Local Datetime | 2017-10-23 09:13:00 |
| Location Latitude | 29.814804 Google Maps OpenStreetMap |
| Location Longitude | -95.186108 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 | 17.47 |
| Recovered Bbls | 17.47 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Public |
| Incident Identified Datetime | 2017-10-23 09:27:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2017-10-23 09:28:00 |
| Restart Datetime | 2017-10-24 20:34:00 |
| On Site Datetime | 2017-10-23 09:27:00 |
| Nrc Rpt Datetime | 2017-10-23 10:33:00 |
| Nrc Rpt Num | 1194033 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Pasadena To Greenville |
| Segment Name | Pasadena To Greenville |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77049 |
| Onshore City Name | Houston |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 72.8 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 77 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Tap Fitting(Stopple, Thread-O-Ring, Weld-O-Let, Etc.) |
| Installation Year | 1977 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | Yes |
| Remediation Ind | Yes |
| Groundwater Remed Ind | Yes |
| Soil Remed Ind | Yes |
| Water Contam Ind | Yes |
| Groundwater Contam Ind | Yes |
| Amount Released | 1.1 |
| Rel Water Name | Shallow Non-Drinking Ground Water Zone. |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| High Pop Ind | Yes |
| High Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 114 |
| Est Cost Prop Damage | 200000 |
| Est Cost Emergency | 100000 |
| Est Cost Environmental | 2400000 |
| Est Cost Other | 0 |
| Prpty | 2700114 |
| Accident Psig | 470 |
| Mop Psig | 920 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 34373 |
| 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 Control Room Ind | Yes |
| Invest No Controller Ind | Yes |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | Gasket |
| Additional Installation Ind | Yes |
| Preparer Name | K**** B**** |
| Preparer Title | Manager Dot And Regulatory Compliance |
| Preparer Email | K*****@e***.com |
| Preparer Telephone | 9184935104 |
| Prepared Date | 2018-08-21 00:00:00 |
| Authorizer Name | J** S**** |
| Authorizer Telephone | 9184935143 |
| Authorizer Title | Director Hsse And Engineering |
| Authorizer Email | J*****@e***.com |
| Narrative | On october 23, 2017 a resident first reported a petroleum odor smell off a common pipeline right of way that contained natural gas and petroleum products pipelines outside of houston, texas to a third party pipeline representative. The third party pipeline operator representative first notified an explorer pipeline representative on october 23, 2017 at approximately 09:13 central standard time (cst), at which time the information from the third party pipeline was obtained. Explorer pipeline notified the pipeline control center of the suspected leak in the common pipeline corridor at approximately 09:17. The control center immediately began verification and validity of the information with scada data, and the explorer pipeline representative proceeded to the location of the suspected leak site. Explorer pipeline personnel first arrived at approximately 09:27 and reported confirmation of a release to the control center at which time the pipeline was shut down at 09:28. The first call to the nrc was completed at 10:33. A follow up notification was provided to the nrc within 48 hours. Following the appropriate internal and external notifications, the pipeline was excavated and a leak from the 28 inch stopple blind flange was identified. A plidco flange leak clamp was installed, and preparations were made to cutout the stopple. The current release volume from continued remediation, soil excavation and soil sampling is 16.2 barrels. The stopple was cutout on november 1, 2017. The manufacturer and a third party evaluated the stopple. It was determined that the direct cause of the release was from damage to the gasket associated with the blind from original instillation in 1977. |
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