Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2013-08-20 — 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
2013-08-20 08:08
Report number
Location
TX
Narrative
This accident occurred during routine maintenance activities. The field operator emptied the pipeline segment of its contents by opening the 3/4" high and low point bleeds. The operator then continued the lock out tag out procedure on the piping and valves. While locking out the motor operated valve mov-7004 the operator inadvertently initiated the valve sequence to the open position allowing system contents to fill the previously empty piping resulting in a butane release from the open high and low point bleeders (system pressure was approximately 702 psi at the time of the accident). The operator attempted to close the open bleeders, but was unable to reach them at which time he returned to mov-7004 which had opened fully and closed it. The operator and maintenance supervisor who were present at the scene then proceeded to the high and low point bleeders and closed them. Local scada recorded the release as occurring for 1 minute 59 seconds. The release was a vapor release of butane. No liquids were spilled to the ground and no pollution to any waterbody occurred. There were no injuries to company employees or contractors on site. There was no damage to equipment and at the time of the accident the estimated cost of lost product was less than $50,000. The pipe was put back into service after the maintenance work was completed on 8-22-13 at 1300 hours.
Detailed record list
Report Received Date
2013-09-19 00:00:00
Iyear
2013
Report Number
20130322
Supplemental Number
18596
Report Type
Original
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
2013-08-20 08:08:00
Location Latitude
42.8842
Location Longitude
-82.4943
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Butane
Unintentional Release Bbls
12
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2013-08-20 08:08:00
System Part Involved
Onshore Equipment And Piping Associated With Belowground Storage
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-08-20 08:09:00
Restart Datetime
2013-08-22 13:00:00
On Site Datetime
2013-08-20 08:08:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Marysville
Segment Name
Piping To Cavern No. 7 (Ms-1-4)
Onshore State Abbreviation
Mi
Onshore Postal Code
48040
Onshore City Name
Marysville
Onshore County Name
St. Clair
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
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
1972
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Operator Error. The Operator Was Conducting Routine Maintenance That Required Him To Empty The Pipeline Segment Of Its Hvl Contents By Opening The 3/4" High And Low Point Bleeds. The Operator Inadvertently Initiated The Valve Sequence To The Open Position Which Allowed The System Contents To Fill The Empty Pipe And Release Through The 3/4" High And Low Point Bleeds.
Wildlife Impact Ind
No
Soil Contamination
No
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
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
1000
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
1000
Accident Psig
702
Mop Psig
1200
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
Yes
Cpm In Place 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
This accident was directly caused by field operator error.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Incorrect Operation
Cause Details
Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure
Operation Type
Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure
Related Failure Follow Ind
Yes
Category Type
Routine Maintenance
Operator Qualification Ind
Yes
Qualified Individuals
Yes, They Were Qualified For The Task(S)
Preparer Name
E******** K****
Preparer Title
Pipeline Compliance Manager
Preparer Email
E******@d***********.com
Preparer Telephone
303-605-1778
Preparer Fax
303-605-1957
Prepared Date
2013-09-19 00:00:00
Authorizer Name
A*** M******
Authorizer Telephone
810-388-2091
Authorizer Title
Plant Manager
Authorizer Email
A********@d***********.com
Narrative
This accident occurred during routine maintenance activities. The field operator emptied the pipeline segment of its contents by opening the 3/4" high and low point bleeds. The operator then continued the lock out tag out procedure on the piping and valves. While locking out the motor operated valve mov-7004 the operator inadvertently initiated the valve sequence to the open position allowing system contents to fill the previously empty piping resulting in a butane release from the open high and low point bleeders (system pressure was approximately 702 psi at the time of the accident). The operator attempted to close the open bleeders, but was unable to reach them at which time he returned to mov-7004 which had opened fully and closed it. The operator and maintenance supervisor who were present at the scene then proceeded to the high and low point bleeders and closed them. Local scada recorded the release as occurring for 1 minute 59 seconds. The release was a vapor release of butane. No liquids were spilled to the ground and no pollution to any waterbody occurred. There were no injuries to company employees or contractors on site. There was no damage to equipment and at the time of the accident the estimated cost of lost product was less than $50,000. The pipe was put back into service after the maintenance work was completed on 8-22-13 at 1300 hours.
| Report Received Date | 2013-09-19 00:00:00 |
|---|---|
| Iyear | 2013 |
| Report Number | 20130322 |
| Supplemental Number | 18596 |
| Report Type | Original |
| 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 | 2013-08-20 08:08:00 |
| Location Latitude | 42.8842 Google Maps OpenStreetMap |
| Location Longitude | -82.4943 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 | Butane |
| Unintentional Release Bbls | 12 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2013-08-20 08:08:00 |
| System Part Involved | Onshore Equipment And Piping Associated With Belowground Storage |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2013-08-20 08:09:00 |
| Restart Datetime | 2013-08-22 13:00:00 |
| On Site Datetime | 2013-08-20 08:08:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Marysville |
| Segment Name | Piping To Cavern No. 7 (Ms-1-4) |
| Onshore State Abbreviation | Mi |
| Onshore Postal Code | 48040 |
| Onshore City Name | Marysville |
| Onshore County Name | St. Clair |
| 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 | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 1972 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Operator Error. The Operator Was Conducting Routine Maintenance That Required Him To Empty The Pipeline Segment Of Its Hvl Contents By Opening The 3/4" High And Low Point Bleeds. The Operator Inadvertently Initiated The Valve Sequence To The Open Position Which Allowed The System Contents To Fill The Empty Pipe And Release Through The 3/4" High And Low Point Bleeds. |
| Wildlife Impact Ind | No |
| Soil Contamination | No |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| 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 | 1000 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 1000 |
| Accident Psig | 702 |
| Mop Psig | 1200 |
| 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 | Yes |
| Cpm In Place 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 | This accident was directly caused by field operator error. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Incorrect Operation |
| Cause Details | Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure |
| Operation Type | Valve Left Or Placed In Wrong Position, But Not Resulting In A Tank, Vessel, Or Sump/separator Overflow Or Facility Overpressure |
| Related Failure Follow Ind | Yes |
| Category Type | Routine Maintenance |
| Operator Qualification Ind | Yes |
| Qualified Individuals | Yes, They Were Qualified For The Task(S) |
| Preparer Name | E******** K**** |
| Preparer Title | Pipeline Compliance Manager |
| Preparer Email | E******@d***********.com |
| Preparer Telephone | 303-605-1778 |
| Preparer Fax | 303-605-1957 |
| Prepared Date | 2013-09-19 00:00:00 |
| Authorizer Name | A*** M****** |
| Authorizer Telephone | 810-388-2091 |
| Authorizer Title | Plant Manager |
| Authorizer Email | A********@d***********.com |
| Narrative | This accident occurred during routine maintenance activities. The field operator emptied the pipeline segment of its contents by opening the 3/4" high and low point bleeds. The operator then continued the lock out tag out procedure on the piping and valves. While locking out the motor operated valve mov-7004 the operator inadvertently initiated the valve sequence to the open position allowing system contents to fill the previously empty piping resulting in a butane release from the open high and low point bleeders (system pressure was approximately 702 psi at the time of the accident). The operator attempted to close the open bleeders, but was unable to reach them at which time he returned to mov-7004 which had opened fully and closed it. The operator and maintenance supervisor who were present at the scene then proceeded to the high and low point bleeders and closed them. Local scada recorded the release as occurring for 1 minute 59 seconds. The release was a vapor release of butane. No liquids were spilled to the ground and no pollution to any waterbody occurred. There were no injuries to company employees or contractors on site. There was no damage to equipment and at the time of the accident the estimated cost of lost product was less than $50,000. The pipe was put back into service after the maintenance work was completed on 8-22-13 at 1300 hours. |
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