Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2021-10-15 — OK
Operator
Williams Field Services - Gulf Coast Company, Lp
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)
$400
Incident datetime
2021-10-15 03:30
Report number
Location
OK
Narrative
Williams operations personnel were notified of a gas detector alarm at ~3:30 am on october 15th, 2021. Williams techs responded and arrived on site to discover the dielectric fitting on the recently installed transmitter tubing had failed and the product was being released. Williams personnel donned respiratory protection and approached upwind to isolate the section of the tubing by closing the pit200 transmitter root valve. Once the section of 3/8" tubing was isolated, approximately 10' of length, the product contained and to vent off until pressure was completely relieved. Once tubing was isolated and at zero pressure, the failed fitting was removed and replaced with new tubing.
Detailed record list
Report Received Date
2021-11-04 00:00:00
Iyear
2021
Report Number
20210313
Supplemental Number
35959
Report Type
Original Final
Operator Id
Name
Williams Field Services - Gulf Coast Company, Lp
Operator Street Address
One Williams Center P.o. Box 645
Operator City Name
Tulsa
Operator State Abbreviation
OK
Operator Postal Code
74172
Local Datetime
2021-10-15 03:30:00
Location Latitude
29.721356
Location Longitude
-95.107697
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Anhydrous Ammonia
Unintentional Release Bbls
1.96
Intentional Release Bbls
0.1
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
2021-10-15 03:30:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
No
Shutdown Explain
Tubing Was Isolated And System Did Not Need To Be Shut Down
On Site Datetime
2021-10-15 05:00:00
Nrc Rpt Num
Nrc Notification Not Required
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Dpkd - Ammonia
Segment Name
1894
Onshore State Abbreviation
Tx
Onshore Postal Code
77536
Onshore City Name
Deer Park
Onshore County Name
Harris County
Designated Location
Milepost/valve Station
Designated Name
0
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
Tubing
Installation Year
2021
Material Involved
Material Other Than Carbon Steel
Material Details
Stainless Steel
Release Type
Other
Release Type Details
Swagelok Dielectric Fitting
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
258
Est Cost Prop Damage
400
Est Cost Emergency
0
Est Cost Environmental
0
Est Cost Other
0
Prpty
658
Accident Psig
372
Mop Psig
686
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
10
Internal Inspection Ind
No
Other Inspection Ind
Yes
Internal Inspection Details
3/8" Stainless Steel Tubing
Operation Complications Ind
Yes
Other Complications Ind
Yes
Inspect Comp Details
3/8" Stainless Steel Tubing
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
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
Controller performed actions as required.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Defective Or Loose Tubing Or Fitting
Eq Failure Type
Defective Or Loose Tubing Or Fitting
Additional Breakdown Ind
Yes
Preparer Name
E**** R********
Preparer Title
Regulatory Compliance Specialist Sr.
Preparer Email
E****************@w*******.com
Preparer Telephone
7132152846
Prepared Date
2021-11-04 00:00:00
Authorizer Name
T**** G****
Authorizer Telephone
3605942137
Authorizer Title
Manager Pipeline Safety
Authorizer Email
T**********@w*******.com
Narrative
Williams operations personnel were notified of a gas detector alarm at ~3:30 am on october 15th, 2021. Williams techs responded and arrived on site to discover the dielectric fitting on the recently installed transmitter tubing had failed and the product was being released. Williams personnel donned respiratory protection and approached upwind to isolate the section of the tubing by closing the pit200 transmitter root valve. Once the section of 3/8" tubing was isolated, approximately 10' of length, the product contained and to vent off until pressure was completely relieved. Once tubing was isolated and at zero pressure, the failed fitting was removed and replaced with new tubing.
| Report Received Date | 2021-11-04 00:00:00 |
|---|---|
| Iyear | 2021 |
| Report Number | 20210313 |
| Supplemental Number | 35959 |
| Report Type | Original Final |
| Operator Id | 994 PHMSA Enforcement |
| Name | Williams Field Services - Gulf Coast Company, Lp |
| Operator Street Address | One Williams Center P.o. Box 645 |
| Operator City Name | Tulsa |
| Operator State Abbreviation | OK |
| Operator Postal Code | 74172 |
| Local Datetime | 2021-10-15 03:30:00 |
| Location Latitude | 29.721356 Google Maps OpenStreetMap |
| Location Longitude | -95.107697 Google Maps OpenStreetMap |
| Commodity Released Type | Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions |
| Commodity Subtype | Anhydrous Ammonia |
| Unintentional Release Bbls | 1.96 |
| Intentional Release Bbls | 0.1 |
| 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 | 2021-10-15 03:30:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Tubing Was Isolated And System Did Not Need To Be Shut Down |
| On Site Datetime | 2021-10-15 05:00:00 |
| Nrc Rpt Num | Nrc Notification Not Required NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Dpkd - Ammonia |
| Segment Name | 1894 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77536 |
| Onshore City Name | Deer Park |
| Onshore County Name | Harris County |
| Designated Location | Milepost/valve Station |
| Designated Name | 0 |
| 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 | Tubing |
| Installation Year | 2021 |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Stainless Steel |
| Release Type | Other |
| Release Type Details | Swagelok Dielectric Fitting |
| 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 | 258 |
| Est Cost Prop Damage | 400 |
| Est Cost Emergency | 0 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 658 |
| Accident Psig | 372 |
| Mop Psig | 686 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 10 |
| Internal Inspection Ind | No |
| Other Inspection Ind | Yes |
| Internal Inspection Details | 3/8" Stainless Steel Tubing |
| Operation Complications Ind | Yes |
| Other Complications Ind | Yes |
| Inspect Comp Details | 3/8" Stainless Steel Tubing |
| 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 | 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 | Controller performed actions as required. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Defective Or Loose Tubing Or Fitting |
| Eq Failure Type | Defective Or Loose Tubing Or Fitting |
| Additional Breakdown Ind | Yes |
| Preparer Name | E**** R******** |
| Preparer Title | Regulatory Compliance Specialist Sr. |
| Preparer Email | E****************@w*******.com |
| Preparer Telephone | 7132152846 |
| Prepared Date | 2021-11-04 00:00:00 |
| Authorizer Name | T**** G**** |
| Authorizer Telephone | 3605942137 |
| Authorizer Title | Manager Pipeline Safety |
| Authorizer Email | T**********@w*******.com |
| Narrative | Williams operations personnel were notified of a gas detector alarm at ~3:30 am on october 15th, 2021. Williams techs responded and arrived on site to discover the dielectric fitting on the recently installed transmitter tubing had failed and the product was being released. Williams personnel donned respiratory protection and approached upwind to isolate the section of the tubing by closing the pit200 transmitter root valve. Once the section of 3/8" tubing was isolated, approximately 10' of length, the product contained and to vent off until pressure was completely relieved. Once tubing was isolated and at zero pressure, the failed fitting was removed and replaced with new tubing. |
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