Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-04-21 — 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
2018-04-21 02:30
Report number
Location
TX
Narrative
The 4-21-18 release that occurred at ellington pump station (ps) was due to an accidental activation, by a contractor, of the mont belvieu station's (mbs) esd which is located downstream of the ellington ps. Consequently, this led to a pressure increase at the ellington ps which caused the thermal relief valves to lift and discharge product to the station vent stack. As a result, a review of esd switches was conducted and additional safeguards such as switch covers, are being evaluated and will be installed accordingly.
Detailed record list
Report Received Date
2018-05-20 00:00:00
Iyear
2018
Report Number
20180139
Supplemental Number
30458
Report Type
Supplemental 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
2018-04-21 02:30:00
Location Latitude
29.59964622
Location Longitude
-95.19416813
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
78
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
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
2018-04-21 02:30:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-04-21 02:30:00
Restart Datetime
2018-04-21 03:15:00
On Site Datetime
2018-04-21 03:00:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Automatic
Num Pub Evacuated
0
Pipe Fac Name
Sahi East
Segment Name
Sahi-1
Onshore State Abbreviation
Tx
Onshore Postal Code
77034
Onshore City Name
Not Within A Municipality
Onshore County Name
Harris
Designated Location
Survey Station No.
Designated Name
155134
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
Relief Valve
Installation Year
2012
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
The Esd Button Was Accidentally Engaged At The Mont Belvieu Station (Mbs) Which Caused A Shut-Down At Ellington Ps. As A Result, This Activated The Thermal Relief Valve Which Relieved Pressure On The System.
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
No
Est Cost Oper Paid
0
Est Cost Gas Released
1100
Est Cost Prop Damage
0
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
1100
Accident Psig
1444
Mop Psig
1440
Accident Pressure
Pressure Exceeded Mop, But Did Not Exceed 110% Of Mop
Pressure Restriction Ind
No
Length Segment Isolated
47520
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
The controller's actions were in accordance with dcp midstream's policies, therefore an investigation was unwarranted.
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
The 4-21-18 Release That Occurred At Ellington Pump Station (Ps) Was Due To An Accidental Activation, By A Contractor, Of The Mont Belvieu Station's (Mbs) Esd Which Is Located Downstream Of The Ellington Ps.
Related Other Ind
Yes
Operation Related Details
Contractor Accidentally Engaged The Push Button On One Of The Esd Hand Stations.
Category Type
Construction
Operator Qualification Ind
No
Preparer Name
K*** F*****
Preparer Title
Pipeline Compliance And Integrity Specialist
Preparer Email
K*******@d***********.com
Preparer Telephone
8327126478
Prepared Date
2018-06-06 00:00:00
Authorizer Name
J*** P*******
Authorizer Telephone
4053435302
Authorizer Title
Manager Pipeline Compliance
Authorizer Email
J********@d***********.com
Narrative
The 4-21-18 release that occurred at ellington pump station (ps) was due to an accidental activation, by a contractor, of the mont belvieu station's (mbs) esd which is located downstream of the ellington ps. Consequently, this led to a pressure increase at the ellington ps which caused the thermal relief valves to lift and discharge product to the station vent stack. As a result, a review of esd switches was conducted and additional safeguards such as switch covers, are being evaluated and will be installed accordingly.
| Report Received Date | 2018-05-20 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180139 |
| Supplemental Number | 30458 |
| Report Type | Supplemental 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 | 2018-04-21 02:30:00 |
| Location Latitude | 29.59964622 Google Maps OpenStreetMap |
| Location Longitude | -95.19416813 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 | 78 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| 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 | 2018-04-21 02:30:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-04-21 02:30:00 |
| Restart Datetime | 2018-04-21 03:15:00 |
| On Site Datetime | 2018-04-21 03:00:00 |
| Nrc Rpt Num | Nrc Notification Not Required 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 | Sahi East |
| Segment Name | Sahi-1 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77034 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Harris |
| Designated Location | Survey Station No. |
| Designated Name | 155134 |
| 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 | Relief Valve |
| Installation Year | 2012 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | The Esd Button Was Accidentally Engaged At The Mont Belvieu Station (Mbs) Which Caused A Shut-Down At Ellington Ps. As A Result, This Activated The Thermal Relief Valve Which Relieved Pressure On The System. |
| 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 | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 1100 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 1100 |
| Accident Psig | 1444 |
| Mop Psig | 1440 |
| Accident Pressure | Pressure Exceeded Mop, But Did Not Exceed 110% Of Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 47520 |
| 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 | The controller's actions were in accordance with dcp midstream's policies, therefore an investigation was unwarranted. |
| 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 | The 4-21-18 Release That Occurred At Ellington Pump Station (Ps) Was Due To An Accidental Activation, By A Contractor, Of The Mont Belvieu Station's (Mbs) Esd Which Is Located Downstream Of The Ellington Ps. |
| Related Other Ind | Yes |
| Operation Related Details | Contractor Accidentally Engaged The Push Button On One Of The Esd Hand Stations. |
| Category Type | Construction |
| Operator Qualification Ind | No |
| Preparer Name | K*** F***** |
| Preparer Title | Pipeline Compliance And Integrity Specialist |
| Preparer Email | K*******@d***********.com |
| Preparer Telephone | 8327126478 |
| Prepared Date | 2018-06-06 00:00:00 |
| Authorizer Name | J*** P******* |
| Authorizer Telephone | 4053435302 |
| Authorizer Title | Manager Pipeline Compliance |
| Authorizer Email | J********@d***********.com |
| Narrative | The 4-21-18 release that occurred at ellington pump station (ps) was due to an accidental activation, by a contractor, of the mont belvieu station's (mbs) esd which is located downstream of the ellington ps. Consequently, this led to a pressure increase at the ellington ps which caused the thermal relief valves to lift and discharge product to the station vent stack. As a result, a review of esd switches was conducted and additional safeguards such as switch covers, are being evaluated and will be installed accordingly. |
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