Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-07-28 — 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
1 injury
Property damage (nominal)
$349,193
Incident datetime
2020-07-28 11:52
Report number
Location
TX
Narrative
On july 28, 2020 at 11:52 am cdt houston control center (hcc) received a change of pressure alarm at mp 65 on the seminole blue mainline. Pressure dropped by approximately 700 psig. Hcc immediately began shutdown of the pipeline and closing block valves upstream and downstream of the observed pressure drop. Pipeline was fully shutdown and isolated at approximately 12:00 cdt. Hcc was notified that a fire was on the right-of-way at 12:45 cdt. A piece of heavy equipment belonging to a third party contractor was parked on the right-of-way engulfed in flames. The fire was extinguished on july 30, 2020 at approximately 17:15 cdt. The damaged section of pipe was replaced once the area was made safe. The system was returned to service on august 1, 2020 at 18:38 cdt. Four employees of the third party excavator were injured, one required hospitalization. The initial nrc notification #1283012 was made at 13:38 cdt on 7/28/2020, and the 48-hour nrc update #1283205 was made at 11:48 cdt on 7/30/2020. Trrc accident #2237
Detailed record list
Report Received Date
2020-08-26 00:00:00
Iyear
2020
Report Number
20200237
Supplemental Number
34324
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
2020-07-28 11:52:00
Location Latitude
32.363388
Location Longitude
-101.884832
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Y-Grade
Unintentional Release Bbls
15061
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
1
Num Gp Injuries
0
Injure
1
Accident Identifier
Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations)
Incident Identified Datetime
2020-07-28 11:52:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2020-07-28 12:00:00
Restart Datetime
2020-08-01 18:38:00
On Site Datetime
2020-07-28 12:35:00
Nrc Rpt Datetime
2020-07-28 13:38:00
Nrc Rpt Num
1283012
Ignite Ind
Yes
Explode Ind
Yes
Upstream Valve Type Ind
Remotely Controlled
Downstream Valve Type Ind
Remotely Controlled
Num Pub Evacuated
0
Pipe Fac Name
Seminole Blue Pipeline
Segment Name
Lid 1
Onshore State Abbreviation
Tx
Onshore Postal Code
79783
Onshore City Name
Tarzan
Onshore County Name
Martin
Designated Location
Survey Station No.
Designated Name
3684+22
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
54
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
14
Pipe Wall Thickness
0.25
Pipe Smys
65000
Pipe Specification
Api 5l
Pipe Seam Type
Erw - High Frequency
Pipe Manufacturer
American Steel
Pipe Coating Type
Cold Applied Tape
Installation Year
1981
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
0.1
Puncture Circum
0.1
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
0
Est Cost Gas Released
313750
Est Cost Prop Damage
349193
Est Cost Emergency
120000
Est Cost Environmental
0
Est Cost Other
18000
Est Cost Other Details
Metallurgical Analysis
Prpty
800943
Accident Psig
1218
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
58113
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
Neither controller nor control room were a contributing factor
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
No
Num Employees Tested
1
Num Employees Failed
0
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
No
Notify Cga Dirt
No
Pipeline Easement Row Ind
Yes
Excavator Type
Contractor
Excavator Equipment
Trencher
Work Performed
Unknown/other
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
126
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
T****** A* G********
Preparer Title
Senior Staff Pipeline Compliance Engineer
Preparer Email
T**********@e****.com
Preparer Telephone
713-381-6433
Prepared Date
2020-09-30 00:00:00
Authorizer Name
T****** A* G********
Authorizer Telephone
713-381-6433
Authorizer Title
Senior Staff Pipeline Compliance Engineer
Authorizer Email
T**********@e****.com
Narrative
On july 28, 2020 at 11:52 am cdt houston control center (hcc) received a change of pressure alarm at mp 65 on the seminole blue mainline. Pressure dropped by approximately 700 psig. Hcc immediately began shutdown of the pipeline and closing block valves upstream and downstream of the observed pressure drop. Pipeline was fully shutdown and isolated at approximately 12:00 cdt. Hcc was notified that a fire was on the right-of-way at 12:45 cdt. A piece of heavy equipment belonging to a third party contractor was parked on the right-of-way engulfed in flames. The fire was extinguished on july 30, 2020 at approximately 17:15 cdt. The damaged section of pipe was replaced once the area was made safe. The system was returned to service on august 1, 2020 at 18:38 cdt. Four employees of the third party excavator were injured, one required hospitalization. The initial nrc notification #1283012 was made at 13:38 cdt on 7/28/2020, and the 48-hour nrc update #1283205 was made at 11:48 cdt on 7/30/2020. Trrc accident #2237
| Report Received Date | 2020-08-26 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200237 |
| Supplemental Number | 34324 |
| 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 | 2020-07-28 11:52:00 |
| Location Latitude | 32.363388 Google Maps OpenStreetMap |
| Location Longitude | -101.884832 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 | Y-Grade |
| Unintentional Release Bbls | 15061 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 1 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Accident Identifier | Cpm Leak Detection System Or Scada-Based Information (Such As Alarm(S), Alert(S), Event(S), And/or Volume Calculations) |
| Incident Identified Datetime | 2020-07-28 11:52:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2020-07-28 12:00:00 |
| Restart Datetime | 2020-08-01 18:38:00 |
| On Site Datetime | 2020-07-28 12:35:00 |
| Nrc Rpt Datetime | 2020-07-28 13:38:00 |
| Nrc Rpt Num | 1283012 NRC Report How to search |
| Ignite Ind | Yes |
| Explode Ind | Yes |
| Upstream Valve Type Ind | Remotely Controlled |
| Downstream Valve Type Ind | Remotely Controlled |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Seminole Blue Pipeline |
| Segment Name | Lid 1 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79783 |
| Onshore City Name | Tarzan |
| Onshore County Name | Martin |
| Designated Location | Survey Station No. |
| Designated Name | 3684+22 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 54 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 14 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 65000 |
| Pipe Specification | Api 5l |
| Pipe Seam Type | Erw - High Frequency |
| Pipe Manufacturer | American Steel |
| Pipe Coating Type | Cold Applied Tape |
| Installation Year | 1981 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 0.1 |
| Puncture Circum | 0.1 |
| 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 | 0 |
| Est Cost Gas Released | 313750 |
| Est Cost Prop Damage | 349193 |
| Est Cost Emergency | 120000 |
| Est Cost Environmental | 0 |
| Est Cost Other | 18000 |
| Est Cost Other Details | Metallurgical Analysis |
| Prpty | 800943 |
| Accident Psig | 1218 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 58113 |
| 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 | Neither controller nor control room were a contributing factor |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | No |
| Num Employees Tested | 1 |
| Num Employees Failed | 0 |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | No |
| Notify Cga Dirt | No |
| Pipeline Easement Row Ind | Yes |
| Excavator Type | Contractor |
| Excavator Equipment | Trencher |
| Work Performed | Unknown/other |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 126 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | T****** A* G******** |
| Preparer Title | Senior Staff Pipeline Compliance Engineer |
| Preparer Email | T**********@e****.com |
| Preparer Telephone | 713-381-6433 |
| Prepared Date | 2020-09-30 00:00:00 |
| Authorizer Name | T****** A* G******** |
| Authorizer Telephone | 713-381-6433 |
| Authorizer Title | Senior Staff Pipeline Compliance Engineer |
| Authorizer Email | T**********@e****.com |
| Narrative | On july 28, 2020 at 11:52 am cdt houston control center (hcc) received a change of pressure alarm at mp 65 on the seminole blue mainline. Pressure dropped by approximately 700 psig. Hcc immediately began shutdown of the pipeline and closing block valves upstream and downstream of the observed pressure drop. Pipeline was fully shutdown and isolated at approximately 12:00 cdt. Hcc was notified that a fire was on the right-of-way at 12:45 cdt. A piece of heavy equipment belonging to a third party contractor was parked on the right-of-way engulfed in flames. The fire was extinguished on july 30, 2020 at approximately 17:15 cdt. The damaged section of pipe was replaced once the area was made safe. The system was returned to service on august 1, 2020 at 18:38 cdt. Four employees of the third party excavator were injured, one required hospitalization. The initial nrc notification #1283012 was made at 13:38 cdt on 7/28/2020, and the 48-hour nrc update #1283205 was made at 11:48 cdt on 7/30/2020. Trrc accident #2237 |
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