Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2020-07-16 — TX
Operator
Dcp Midstream
Cause
Equipment Failure
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)
$18,000
Incident datetime
2020-07-16 07:41
Report number
Location
TX
Narrative
On 07/16/2020, at 7:41 am, dcp field technician identified a leak in a valve body bypass nipple of sweeny meter station. After the confirmed discovery of the leak, a plan was put into place to launch a 24 inch pig to displace the ngl back into the sahi mainline. Once the pig was launched at 1:33 am, 07/17/2020, it isolated the leak due to n2 being behind the pig. It was determined that the provided valve from the manufacturer had a defective threaded nipple which caused leak. As a corrective action, dcp was provided a new valve from the manufacturer and was installed at the meter station.
Detailed record list
Report Received Date
2020-08-12 00:00:00
Iyear
2020
Report Number
20200227
Supplemental Number
34209
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
2020-07-16 08:46:00
Location Latitude
29.063056
Location Longitude
-95.755956
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
0.32
Intentional Release Bbls
0
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
2020-07-16 07:41:00
System Part Involved
Onshore Pump/meter Station Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
To Stop The Leak Through Nipple, Ngl Pushed Back To Sahi Main Line
On Site Datetime
2020-07-16 07:41:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
P66 Sweeny Meter Station
Segment Name
Sahi-1-18
Onshore State Abbreviation
Tx
Onshore Postal Code
77480
Onshore City Name
Not Within A Municipality
Onshore County Name
Brazoria
Designated Location
Milepost/valve Station
Designated Name
Mp 6.3
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
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
Spx
Installation Year
2020
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Other
Leak Type Other
Defective Nipple In Valve Body
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
8
Est Cost Prop Damage
18000
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
18008
Accident Psig
1044
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
The gate valve provided by the manufacturer had a defective threaded nipple which caused the leak. Controller did not contribute to this event.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Malfunction Of Control/relief Equipment
Eq Failure Type
Malfunction Of Control/relief Equipment
Block Valve Ind
Yes
Additional Defect Ind
Yes
Preparer Name
M******* M******
Preparer Title
Principal Pipeline Compliance
Preparer Email
M********@d***********.com
Preparer Telephone
832-546-0588
Prepared Date
2020-08-31 00:00:00
Authorizer Name
J*** D P*******
Authorizer Telephone
405-605-3859
Authorizer Title
Manager Pipeline Compliance
Authorizer Email
J*********@d***********.com
Narrative
On 07/16/2020, at 7:41 am, dcp field technician identified a leak in a valve body bypass nipple of sweeny meter station. After the confirmed discovery of the leak, a plan was put into place to launch a 24 inch pig to displace the ngl back into the sahi mainline. Once the pig was launched at 1:33 am, 07/17/2020, it isolated the leak due to n2 being behind the pig. It was determined that the provided valve from the manufacturer had a defective threaded nipple which caused leak. As a corrective action, dcp was provided a new valve from the manufacturer and was installed at the meter station.
| Report Received Date | 2020-08-12 00:00:00 |
|---|---|
| Iyear | 2020 |
| Report Number | 20200227 |
| Supplemental Number | 34209 |
| 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 | 2020-07-16 08:46:00 |
| Location Latitude | 29.063056 Google Maps OpenStreetMap |
| Location Longitude | -95.755956 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 | 0.32 |
| Intentional Release Bbls | 0 |
| 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 | 2020-07-16 07:41:00 |
| System Part Involved | Onshore Pump/meter Station Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | To Stop The Leak Through Nipple, Ngl Pushed Back To Sahi Main Line |
| On Site Datetime | 2020-07-16 07:41:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | P66 Sweeny Meter Station |
| Segment Name | Sahi-1-18 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77480 |
| Onshore City Name | Not Within A Municipality |
| Onshore County Name | Brazoria |
| Designated Location | Milepost/valve Station |
| Designated Name | Mp 6.3 |
| 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 | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | Spx |
| Installation Year | 2020 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Other |
| Leak Type Other | Defective Nipple In Valve Body |
| 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 | 8 |
| Est Cost Prop Damage | 18000 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 18008 |
| Accident Psig | 1044 |
| 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 | The gate valve provided by the manufacturer had a defective threaded nipple which caused the leak. Controller did not contribute to this event. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Malfunction Of Control/relief Equipment |
| Eq Failure Type | Malfunction Of Control/relief Equipment |
| Block Valve Ind | Yes |
| Additional Defect Ind | Yes |
| Preparer Name | M******* M****** |
| Preparer Title | Principal Pipeline Compliance |
| Preparer Email | M********@d***********.com |
| Preparer Telephone | 832-546-0588 |
| Prepared Date | 2020-08-31 00:00:00 |
| Authorizer Name | J*** D P******* |
| Authorizer Telephone | 405-605-3859 |
| Authorizer Title | Manager Pipeline Compliance |
| Authorizer Email | J*********@d***********.com |
| Narrative | On 07/16/2020, at 7:41 am, dcp field technician identified a leak in a valve body bypass nipple of sweeny meter station. After the confirmed discovery of the leak, a plan was put into place to launch a 24 inch pig to displace the ngl back into the sahi mainline. Once the pig was launched at 1:33 am, 07/17/2020, it isolated the leak due to n2 being behind the pig. It was determined that the provided valve from the manufacturer had a defective threaded nipple which caused leak. As a corrective action, dcp was provided a new valve from the manufacturer and was installed at the meter station. |
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