Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2014-11-10 — TX
Operator
Enterprise Products Operating Llc
Cause
Notification Issue
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)
$97,169
Incident datetime
2014-11-10 11:29
Report number
Location
TX
Narrative
On 11/20/2014 at 11:29 am, the control center was notified there was a possible release near 310th street and eureka avenue in cedar county, iowa. The excavator contacted pipeline control immediately to report the line strike. An enterprise employee arrived on site at 11:43 to confirm that there was a leak at am 7 of the clinton lines via a vapor cloud being present. There are two lines present in this area, an 8" and a 10". Both lines were double isolated. A pressure gauge was used to monitor pressures on both lines to determine that the 8" clinton lateral was hit. An excavator was installing drain tile from north to south and the 8" line was the most northern and was struck. An enterprise incident command post was established west of eureka avenue on 310th street. Roads were blocked by the fire department and law enforcement to restrict access to the leak site. 12 households were temporarily evacuated. To evacuate the line, a flare was set up upstream of the accident site. Continuous flaring occurred until the pipeline could be swept with nitrogen. The plow was removed from the pipe, the damage segment was cut out, and the repairs were made. The pipeline was returned to service on 11/13/2014 at 20:57. An incident investigation was initiated to determine why the excavator was excavating in the vicinity of our pipelines. The excavator had made a one call but the he ventured outside of the one call boundaries; the location of the line strike was not covered by the one call.
Detailed record list
Report Received Date
2014-12-09 00:00:00
Iyear
2014
Report Number
20140414
Supplemental Number
19949
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
2014-11-10 11:29:00
Location Latitude
41.642669
Location Longitude
-91.284455
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Propane
Unintentional Release Bbls
3216
Intentional Release Bbls
220
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Notification From Third Party That Caused The Accident
Incident Identified Datetime
2014-11-10 11:29:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2014-11-10 11:40:00
Restart Datetime
2014-11-13 20:57:00
On Site Datetime
2014-11-10 11:43:00
Nrc Rpt Datetime
2014-11-10 13:20:00
Nrc Rpt Num
1100681
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
12
Pipe Fac Name
Clinton Lateral
Segment Name
620
Onshore State Abbreviation
Ia
Onshore Postal Code
52358
Onshore City Name
West Branch
Onshore County Name
Cedar County
Designated Location
Milepost/valve Station
Designated Name
Mp 7
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
36
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
8
Pipe Wall Thickness
0.188
Pipe Smys
52000
Pipe Specification
Api 5l-X-52
Pipe Seam Type
Erw � Unknown Frequency
Pipe Manufacturer
Bethlehem Steel
Pipe Coating Type
Other
Pipe Coating Details
Polyken Tape Coat
Installation Year
1968
Manufactured Year
1968
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
9
Puncture Circum
3
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
131865
Est Cost Prop Damage
97169
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
508
Est Cost Other Details
Accommodations And Food For Displaced Land Owners
Prpty
229542
Accident Psig
182
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
49205
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
Yes
Scada Conf Ind
Yes
Cpm In Place Ind
Yes
Cpm Operating Ind
Yes
Cpm Functional Ind
Yes
Cpm Detection Ind
Yes
Cpm Conf Ind
Yes
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
A third party struck the line and called it in immediately.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
Notify Cga Dirt
No
Private Row Ind
Yes
Private Subtype
Private Landowner
Excavator Type
Farmer
Excavator Equipment
Farm Equipment
Work Performed
Drainage
One Call Notified Ind
Yes
One Call Ticket Num
142990183
Locator Type
Utility Owner
Visible Marks
No
Service Interruption
Yes
Service Interruption Hours
81
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
R** L**
Preparer Title
Pipeline Compliance Engineer
Preparer Email
R***@e****.com
Preparer Telephone
713-381-6741
Prepared Date
2014-12-09 00:00:00
Authorizer Name
R** L**
Authorizer Telephone
713-381-6741
Authorizer Title
Pipeline Compliance Engineer
Authorizer Email
R***@e****.com
Narrative
On 11/20/2014 at 11:29 am, the control center was notified there was a possible release near 310th street and eureka avenue in cedar county, iowa. The excavator contacted pipeline control immediately to report the line strike. An enterprise employee arrived on site at 11:43 to confirm that there was a leak at am 7 of the clinton lines via a vapor cloud being present. There are two lines present in this area, an 8" and a 10". Both lines were double isolated. A pressure gauge was used to monitor pressures on both lines to determine that the 8" clinton lateral was hit. An excavator was installing drain tile from north to south and the 8" line was the most northern and was struck. An enterprise incident command post was established west of eureka avenue on 310th street. Roads were blocked by the fire department and law enforcement to restrict access to the leak site. 12 households were temporarily evacuated. To evacuate the line, a flare was set up upstream of the accident site. Continuous flaring occurred until the pipeline could be swept with nitrogen. The plow was removed from the pipe, the damage segment was cut out, and the repairs were made. The pipeline was returned to service on 11/13/2014 at 20:57. An incident investigation was initiated to determine why the excavator was excavating in the vicinity of our pipelines. The excavator had made a one call but the he ventured outside of the one call boundaries; the location of the line strike was not covered by the one call.
| Report Received Date | 2014-12-09 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140414 |
| Supplemental Number | 19949 |
| 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 | 2014-11-10 11:29:00 |
| Location Latitude | 41.642669 Google Maps OpenStreetMap |
| Location Longitude | -91.284455 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 | Propane |
| Unintentional Release Bbls | 3216 |
| Intentional Release Bbls | 220 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Notification From Third Party That Caused The Accident |
| Incident Identified Datetime | 2014-11-10 11:29:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2014-11-10 11:40:00 |
| Restart Datetime | 2014-11-13 20:57:00 |
| On Site Datetime | 2014-11-10 11:43:00 |
| Nrc Rpt Datetime | 2014-11-10 13:20:00 |
| Nrc Rpt Num | 1100681 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 12 |
| Pipe Fac Name | Clinton Lateral |
| Segment Name | 620 |
| Onshore State Abbreviation | Ia |
| Onshore Postal Code | 52358 |
| Onshore City Name | West Branch |
| Onshore County Name | Cedar County |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 7 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 36 |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 8 |
| Pipe Wall Thickness | 0.188 |
| Pipe Smys | 52000 |
| Pipe Specification | Api 5l-X-52 |
| Pipe Seam Type | Erw � Unknown Frequency |
| Pipe Manufacturer | Bethlehem Steel |
| Pipe Coating Type | Other |
| Pipe Coating Details | Polyken Tape Coat |
| Installation Year | 1968 |
| Manufactured Year | 1968 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 9 |
| Puncture Circum | 3 |
| 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 | 131865 |
| Est Cost Prop Damage | 97169 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 508 |
| Est Cost Other Details | Accommodations And Food For Displaced Land Owners |
| Prpty | 229542 |
| Accident Psig | 182 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 49205 |
| 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 | Yes |
| Scada Conf Ind | Yes |
| Cpm In Place Ind | Yes |
| Cpm Operating Ind | Yes |
| Cpm Functional Ind | Yes |
| Cpm Detection Ind | Yes |
| Cpm Conf Ind | Yes |
| 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 | A third party struck the line and called it in immediately. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| Notify Cga Dirt | No |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Excavator Type | Farmer |
| Excavator Equipment | Farm Equipment |
| Work Performed | Drainage |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 142990183 |
| Locator Type | Utility Owner |
| Visible Marks | No |
| Service Interruption | Yes |
| Service Interruption Hours | 81 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | R** L** |
| Preparer Title | Pipeline Compliance Engineer |
| Preparer Email | R***@e****.com |
| Preparer Telephone | 713-381-6741 |
| Prepared Date | 2014-12-09 00:00:00 |
| Authorizer Name | R** L** |
| Authorizer Telephone | 713-381-6741 |
| Authorizer Title | Pipeline Compliance Engineer |
| Authorizer Email | R***@e****.com |
| Narrative | On 11/20/2014 at 11:29 am, the control center was notified there was a possible release near 310th street and eureka avenue in cedar county, iowa. The excavator contacted pipeline control immediately to report the line strike. An enterprise employee arrived on site at 11:43 to confirm that there was a leak at am 7 of the clinton lines via a vapor cloud being present. There are two lines present in this area, an 8" and a 10". Both lines were double isolated. A pressure gauge was used to monitor pressures on both lines to determine that the 8" clinton lateral was hit. An excavator was installing drain tile from north to south and the 8" line was the most northern and was struck. An enterprise incident command post was established west of eureka avenue on 310th street. Roads were blocked by the fire department and law enforcement to restrict access to the leak site. 12 households were temporarily evacuated. To evacuate the line, a flare was set up upstream of the accident site. Continuous flaring occurred until the pipeline could be swept with nitrogen. The plow was removed from the pipe, the damage segment was cut out, and the repairs were made. The pipeline was returned to service on 11/13/2014 at 20:57. An incident investigation was initiated to determine why the excavator was excavating in the vicinity of our pipelines. The excavator had made a one call but the he ventured outside of the one call boundaries; the location of the line strike was not covered by the one call. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA