Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2019-08-15 — TX
Operator
Dcp Midstream
Cause
Incorrect Operation
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)
$0
Incident datetime
2019-08-15 09:00
Report number
Location
TX
Narrative
Contractor was separating a 6 inch, 600 series flange inside the dcp sand hills roberts ranch meter station during a scheduled maintenance job. Meter station had been isolated and prepared for maintenance prior to the scheduled maintenance event. Contractor was using an electric impact wrench to unbolt a 6 inch, 600 series flange. The contractor was down to the last bolt and nut, when the flange separated apart releasing ngl vapor which found an ignition source (electric impact) causing small flash fire. The fire watch extinguished immediately. No damage or injuries. Note: part a #8, #9 & #10 minimum amount of 0.1 was entered because the form will not allow zero entry. No ngl liquids were released/only vapors were released. Corrective action: review of grounding & bonding policy o&m manual, section f-08 prevention of accidental ignition with sahi west operations completed 8/27/19. Also communicated to sahi west operations employees on 8/27/19 that electric impact wrenches will not be used. Prohibited use of spark producing electric impact wrenches.
Detailed record list
Report Received Date
2019-09-11 00:00:00
Iyear
2019
Report Number
20190286
Supplemental Number
32691
Report Type
Original Final
Operator Id
31130
Name
Dcp Midstream
Operator Street Address
2331 Citywest Blvd. Hq-08-S812-02
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77042
Local Datetime
2019-08-15 09:00:00
Location Latitude
31.78229
Location Longitude
-102.24995
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Ngl Vapors (Natural Gas Liquids) Vapors
Unintentional Release Bbls
0.1
Intentional Release Bbls
0.1
Recovered Bbls
0.1
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Contractor Working For The Operator
Incident Identified Datetime
2019-08-15 09:00:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Meter Station Was Already Down For The Scheduled Maintenance Event
On Site Datetime
2019-08-15 09:00:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Dcp Sand Hills Ngl Roberts Ranch Meter Station
Segment Name
Roberts Ranch Meter Station
Onshore State Abbreviation
Tx
Onshore Postal Code
79755
Onshore City Name
Not Within A Municipality
Onshore County Name
Midland County
Designated Location
Milepost/valve Station
Designated Name
Roberts Ranch
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Flange Assembly
Installation Year
2013
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Contractor Was Separating A 6 Inch X 600 Series Flange Inside The Dcp Roberts Ranch Ngl Meter Station. Vapor Ignited When Flanges Were Separated.
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
0
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
50
Est Cost Other Details
Fire Extinguisher Powder & Cartridge Replacement Cost
Prpty
50
Accident Psig
0
Mop Psig
1440
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction 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
Accident occurred during scheduled maintenance. Meter station was down at the time of the accident. Operations was on location at the time of the accident.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Other Incorrect Operation
Operation Type
Other Incorrect Operation
Operation Details
Contractor Was Unbolting 6 Inch, 600 Series Flange, And Was Down To The Last Bolt When The Flange Separated Apart Releasing Vapors From Ngl. The Impact The Contractor Was Using Was Electric, Creating An Ignition Source For The Ngl Vapors To Ignite Resulting In Small Flash Fire That Was Immediately Extinguished. Contractor Was Using The Wrong Tool For The Job.
Related Failure Follow Ind
Yes
Category Type
Other Maintenance
Operator Qualification Ind
No
Preparer Name
D***** H******
Preparer Title
Principal Pipeline Compliance Specialist
Preparer Email
H******@d***********.com
Preparer Telephone
432-620-4063
Prepared Date
2019-09-11 00:00:00
Authorizer Name
J*** P*******
Authorizer Telephone
405-605-3859
Authorizer Title
Manager Pipeline Compliance
Authorizer Email
J*********@d***********.com
Narrative
Contractor was separating a 6 inch, 600 series flange inside the dcp sand hills roberts ranch meter station during a scheduled maintenance job. Meter station had been isolated and prepared for maintenance prior to the scheduled maintenance event. Contractor was using an electric impact wrench to unbolt a 6 inch, 600 series flange. The contractor was down to the last bolt and nut, when the flange separated apart releasing ngl vapor which found an ignition source (electric impact) causing small flash fire. The fire watch extinguished immediately. No damage or injuries. Note: part a #8, #9 & #10 minimum amount of 0.1 was entered because the form will not allow zero entry. No ngl liquids were released/only vapors were released. Corrective action: review of grounding & bonding policy o&m manual, section f-08 prevention of accidental ignition with sahi west operations completed 8/27/19. Also communicated to sahi west operations employees on 8/27/19 that electric impact wrenches will not be used. Prohibited use of spark producing electric impact wrenches.
| Report Received Date | 2019-09-11 00:00:00 |
|---|---|
| Iyear | 2019 |
| Report Number | 20190286 |
| Supplemental Number | 32691 |
| Report Type | Original Final |
| Operator Id | 31130 PHMSA Enforcement |
| Name | Dcp Midstream |
| Operator Street Address | 2331 Citywest Blvd. Hq-08-S812-02 |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77042 |
| Local Datetime | 2019-08-15 09:00:00 |
| Location Latitude | 31.78229 Google Maps OpenStreetMap |
| Location Longitude | -102.24995 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 | Ngl Vapors (Natural Gas Liquids) Vapors |
| Unintentional Release Bbls | 0.1 |
| Intentional Release Bbls | 0.1 |
| Recovered Bbls | 0.1 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Contractor Working For The Operator |
| Incident Identified Datetime | 2019-08-15 09:00:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Meter Station Was Already Down For The Scheduled Maintenance Event |
| On Site Datetime | 2019-08-15 09:00:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Dcp Sand Hills Ngl Roberts Ranch Meter Station |
| Segment Name | Roberts Ranch Meter Station |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 79755 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Midland County |
| Designated Location | Milepost/valve Station |
| Designated Name | Roberts Ranch |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Flange Assembly |
| Installation Year | 2013 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Contractor Was Separating A 6 Inch X 600 Series Flange Inside The Dcp Roberts Ranch Ngl Meter Station. Vapor Ignited When Flanges Were Separated. |
| 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 | 0 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 50 |
| Est Cost Other Details | Fire Extinguisher Powder & Cartridge Replacement Cost |
| Prpty | 50 |
| Accident Psig | 0 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction 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 | Accident occurred during scheduled maintenance. Meter station was down at the time of the accident. Operations was on location at the time of the accident. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Other Incorrect Operation |
| Operation Type | Other Incorrect Operation |
| Operation Details | Contractor Was Unbolting 6 Inch, 600 Series Flange, And Was Down To The Last Bolt When The Flange Separated Apart Releasing Vapors From Ngl. The Impact The Contractor Was Using Was Electric, Creating An Ignition Source For The Ngl Vapors To Ignite Resulting In Small Flash Fire That Was Immediately Extinguished. Contractor Was Using The Wrong Tool For The Job. |
| Related Failure Follow Ind | Yes |
| Category Type | Other Maintenance |
| Operator Qualification Ind | No |
| Preparer Name | D***** H****** |
| Preparer Title | Principal Pipeline Compliance Specialist |
| Preparer Email | H******@d***********.com |
| Preparer Telephone | 432-620-4063 |
| Prepared Date | 2019-09-11 00:00:00 |
| Authorizer Name | J*** P******* |
| Authorizer Telephone | 405-605-3859 |
| Authorizer Title | Manager Pipeline Compliance |
| Authorizer Email | J*********@d***********.com |
| Narrative | Contractor was separating a 6 inch, 600 series flange inside the dcp sand hills roberts ranch meter station during a scheduled maintenance job. Meter station had been isolated and prepared for maintenance prior to the scheduled maintenance event. Contractor was using an electric impact wrench to unbolt a 6 inch, 600 series flange. The contractor was down to the last bolt and nut, when the flange separated apart releasing ngl vapor which found an ignition source (electric impact) causing small flash fire. The fire watch extinguished immediately. No damage or injuries. Note: part a #8, #9 & #10 minimum amount of 0.1 was entered because the form will not allow zero entry. No ngl liquids were released/only vapors were released. Corrective action: review of grounding & bonding policy o&m manual, section f-08 prevention of accidental ignition with sahi west operations completed 8/27/19. Also communicated to sahi west operations employees on 8/27/19 that electric impact wrenches will not be used. Prohibited use of spark producing electric impact wrenches. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA