Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2011-06-16 — TX
Operator
Enterprise Products Operating Llc
Cause
Corrosion 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)
$303,053
Incident datetime
2011-06-16 15:05
Report number
Location
TX
Narrative
Liquid control center received a call from a deputy with san patricio county stating that he smelled gas near the intersection of hwy 181 and county road 79 near taft texas. Pl technicians were dispatched to the location and reported that vapors were coming from the casing vent on the north side of hwy 181 pipeline crossing. Blocked valves were closed and the line was isolated. Block valves were closed to isolate the section of pipeline where the leak occurred. Notifications where made to pipeline compliance, environmental and safety departments. Ncr# 979887, tx rrc# 665. Soil contamination - recommendation to dig out the area and replace with new soil. Corrective action: a pig will be placed into the pipeline and nitrogen will be used to remove the product from the section of pipeline containing the leak. The remaining nitrogen/product mix will be flared to the atmosphere and repairs will be made to correct the leak. Discovery - hole in pipe 1/8" in circumference, it was on the bottom inside of casing underneath railroad tract. Coating on the pipe was tgf3. This pipe and location was under rectifier current approx. 296.5 feet south of the rectifier location. 10'-0" segment of pipe with the corrosion caused hole was sent to stress engineering lab in houston. Last ili inspection on the system was in 2007.
Detailed record list
Report Received Date
2011-06-22 00:00:00
Iyear
2011
Report Number
20110189
Supplemental Number
16014
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
2011-06-16 14:00:00
Location Latitude
27.959521
Location Longitude
-97.360576
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid)
Unintentional Release Bbls
50
Intentional Release Bbls
450
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Call From A Deputy With San Patricio County Stating That He Smelled Gas
Incident Identified Datetime
2011-06-16 15:05:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2011-06-16 15:08:00
Restart Datetime
2011-06-30 03:30:00
On Site Datetime
2011-06-16 15:06:00
Nrc Rpt Datetime
2011-06-16 16:00:00
Nrc Rpt Num
979887
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Automatic
Num Pub Evacuated
0
Pipe Fac Name
L27a-10
Segment Name
Buttane Shuttle System
Onshore State Abbreviation
Tx
Onshore Postal Code
78390
Onshore City Name
Taft
Onshore County Name
San Patricio
Designated Location
Milepost/valve Station
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Other
Incident Area Details
Inside Casing Rr Tract And Roadway
Crossing
Yes
Railroad Crossing Ind
Yes
Railroad Type
Cased
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
10
Pipe Wall Thickness
0.25
Pipe Smys
42000
Pipe Specification
Api-5l
Pipe Seam Type
Erw - Low Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Coal Tar
Installation Year
1966
Manufactured Year
1966
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Corrosion
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
10000
Est Cost Gas Released
47250
Est Cost Prop Damage
303053
Est Cost Emergency
1000
Est Cost Environmental
5000
Est Cost Other
278697
Est Cost Other Details
Pipeline Bore, Replacement Pipe, Nitrogen, Flaring Of The Pipe Segment.
Prpty
645000
Accident Psig
190
Mop Psig
672
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
45408
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
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
Leak inside casing
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Corrosion Failure
Cause Details
External Corrosion
Internal External
External Corrosion
Visual Exam Results
Localized Pitting
Galvanic Corrosion Ind
Yes
Field Exam Basis Ind
Yes
Underground Location
Yes
Under Cathodic Protection Ind
Yes
Cathodic Pro Start Year
1966
Shielding Evident
No
Cathodic Survey Type
Yes
Cp Annual Survey Ind
Yes
Cp Annual Survey Year
2010
Prior Damage
Yes
Collected Data Ind
Yes
Other Tool Tech Ind
Yes
Has Hydrtst Conduc Before Ind
No
Direct Asmnt Conducted
No
Non Destructive Exam Ind
No
Preparer Name
J*** J*****
Preparer Title
Compliance Engineer
Preparer Email
J******@e****.com
Preparer Telephone
7133817918
Preparer Fax
7133816660
Prepared Date
2011-08-25 00:00:00
Authorizer Name
J*** J*****
Authorizer Telephone
7133817918
Authorizer Title
Compliance Engineer
Authorizer Email
J******@e****.com
Narrative
Liquid control center received a call from a deputy with san patricio county stating that he smelled gas near the intersection of hwy 181 and county road 79 near taft texas. Pl technicians were dispatched to the location and reported that vapors were coming from the casing vent on the north side of hwy 181 pipeline crossing. Blocked valves were closed and the line was isolated. Block valves were closed to isolate the section of pipeline where the leak occurred. Notifications where made to pipeline compliance, environmental and safety departments. Ncr# 979887, tx rrc# 665. Soil contamination - recommendation to dig out the area and replace with new soil. Corrective action: a pig will be placed into the pipeline and nitrogen will be used to remove the product from the section of pipeline containing the leak. The remaining nitrogen/product mix will be flared to the atmosphere and repairs will be made to correct the leak. Discovery - hole in pipe 1/8" in circumference, it was on the bottom inside of casing underneath railroad tract. Coating on the pipe was tgf3. This pipe and location was under rectifier current approx. 296.5 feet south of the rectifier location. 10'-0" segment of pipe with the corrosion caused hole was sent to stress engineering lab in houston. Last ili inspection on the system was in 2007.
| Report Received Date | 2011-06-22 00:00:00 |
|---|---|
| Iyear | 2011 |
| Report Number | 20110189 |
| Supplemental Number | 16014 |
| 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 | 2011-06-16 14:00:00 |
| Location Latitude | 27.959521 Google Maps OpenStreetMap |
| Location Longitude | -97.360576 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Lpg (Liquefied Petroleum Gas) / Ngl (Natural Gas Liquid) |
| Unintentional Release Bbls | 50 |
| Intentional Release Bbls | 450 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Other |
| Accident Details | Call From A Deputy With San Patricio County Stating That He Smelled Gas |
| Incident Identified Datetime | 2011-06-16 15:05:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2011-06-16 15:08:00 |
| Restart Datetime | 2011-06-30 03:30:00 |
| On Site Datetime | 2011-06-16 15:06:00 |
| Nrc Rpt Datetime | 2011-06-16 16:00:00 |
| Nrc Rpt Num | 979887 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Automatic |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | L27a-10 |
| Segment Name | Buttane Shuttle System |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 78390 |
| Onshore City Name | Taft |
| Onshore County Name | San Patricio |
| Designated Location | Milepost/valve Station |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Other |
| Incident Area Details | Inside Casing Rr Tract And Roadway |
| Crossing | Yes |
| Railroad Crossing Ind | Yes |
| Railroad Type | Cased |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 10 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 42000 |
| Pipe Specification | Api-5l |
| Pipe Seam Type | Erw - Low Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Coal Tar |
| Installation Year | 1966 |
| Manufactured Year | 1966 |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Corrosion |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 10000 |
| Est Cost Gas Released | 47250 |
| Est Cost Prop Damage | 303053 |
| Est Cost Emergency | 1000 |
| Est Cost Environmental | 5000 |
| Est Cost Other | 278697 |
| Est Cost Other Details | Pipeline Bore, Replacement Pipe, Nitrogen, Flaring Of The Pipe Segment. |
| Prpty | 645000 |
| Accident Psig | 190 |
| Mop Psig | 672 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 45408 |
| 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 | 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 | Leak inside casing |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Corrosion Failure |
| Cause Details | External Corrosion |
| Internal External | External Corrosion |
| Visual Exam Results | Localized Pitting |
| Galvanic Corrosion Ind | Yes |
| Field Exam Basis Ind | Yes |
| Underground Location | Yes |
| Under Cathodic Protection Ind | Yes |
| Cathodic Pro Start Year | 1966 |
| Shielding Evident | No |
| Cathodic Survey Type | Yes |
| Cp Annual Survey Ind | Yes |
| Cp Annual Survey Year | 2010 |
| Prior Damage | Yes |
| Collected Data Ind | Yes |
| Other Tool Tech Ind | Yes |
| Has Hydrtst Conduc Before Ind | No |
| Direct Asmnt Conducted | No |
| Non Destructive Exam Ind | No |
| Preparer Name | J*** J***** |
| Preparer Title | Compliance Engineer |
| Preparer Email | J******@e****.com |
| Preparer Telephone | 7133817918 |
| Preparer Fax | 7133816660 |
| Prepared Date | 2011-08-25 00:00:00 |
| Authorizer Name | J*** J***** |
| Authorizer Telephone | 7133817918 |
| Authorizer Title | Compliance Engineer |
| Authorizer Email | J******@e****.com |
| Narrative | Liquid control center received a call from a deputy with san patricio county stating that he smelled gas near the intersection of hwy 181 and county road 79 near taft texas. Pl technicians were dispatched to the location and reported that vapors were coming from the casing vent on the north side of hwy 181 pipeline crossing. Blocked valves were closed and the line was isolated. Block valves were closed to isolate the section of pipeline where the leak occurred. Notifications where made to pipeline compliance, environmental and safety departments. Ncr# 979887, tx rrc# 665. Soil contamination - recommendation to dig out the area and replace with new soil. Corrective action: a pig will be placed into the pipeline and nitrogen will be used to remove the product from the section of pipeline containing the leak. The remaining nitrogen/product mix will be flared to the atmosphere and repairs will be made to correct the leak. Discovery - hole in pipe 1/8" in circumference, it was on the bottom inside of casing underneath railroad tract. Coating on the pipe was tgf3. This pipe and location was under rectifier current approx. 296.5 feet south of the rectifier location. 10'-0" segment of pipe with the corrosion caused hole was sent to stress engineering lab in houston. Last ili inspection on the system was in 2007. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA