Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2018-08-06 — 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)
$30,000
Incident datetime
2018-08-06 10:00
Report number
Location
OK
Narrative
Williams gcp damage prevention tech received a call from buckeye pipeline, just before 10:00 am on 8/6/18, letting him know there appeared to be some type of product on the ground at the block valve site off miller road 2 (this valve pen is shared with multiple pipeline companies in the area, and williams has a block valve in this pen for the 801 8" alky/c5 raffinate line). After receiving the call from buckeye, the williams damage prevention ops tech and supervisor went to the site. After inspecting the area, williams requested their pipeline control center shut the 801 line down at approximately 10:20 am. Other pipeline operators in the area began shutting in and additional williams personnel were dispatched to the site. Buckeye operates a gasoline line for targa-located in the same valve pen, and it was not obvious if the sheen was caused by either of the lines in the pen. Williams and buckeye sent a samples of the water/product mix to different labs for analysis in an attempt to determine the type of material that caused the sheen. The results were not helpful in pinpointing the type/origin of the material. Buckeye pipeline had assumed responsibility for the release, until the source of the release could be determined. Initial reports were made and hydro-excavation begin late afternoon/evening on 8/6/18. As of 7:30 am 8/7/18, hydro-excavation of buckeye's line and partial excavation of williams in-ground valve on the 801 line had not revealed a definitive source of the release. With the williams's line and buried valve partially exposed, williams's operations worked with their pipeline control to perform a bump test on the line to help determine if the release was from the williams's pipeline. At 11:05 am, tuesday, august 7, williams confirmed that the release was on their pipeline. Williams began transitioning control of the site at that time, from buckeye pipeline (which included contacting the trrc/nrc/harris county pollution control to inform them that williams was responsible for the release). Williams construction contractor began staging additional equipment and resources around 12:00 pm - 8/7/18. Hydro-excavation efforts continued throughout the day/night to fully expose the valve at this site, which revealed a small bonnet gasket leak (failed bonnet o-ring) on the grove g4n buried block valve. A temporary valve leak repair was made at approximately 5:00 pm on 8/9/18. Williams will continue to monitor the valve repair until the valve can be replaced. 8/22/18 pei report analytical results show that contamination was extremely limited, and the levels found by the lab do not warrant any additional soil removal at this time. All sample results were below the standards "protective of ground water". Pei's recommendation is that no further action is required at the site. Update 9/5/18 williams is currently planning to bring the two buried valves on this line above grade, which includes the miller road valve noted on the h-8 form, and replace them with new valves within the next year. Williams will continue to monitor the miller road block valve until the valve replacement project is complete.
Detailed record list
Report Received Date
2018-08-24 00:00:00
Iyear
2018
Report Number
20180255
Supplemental Number
30996
Report Type
Supplemental 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
2018-08-06 08:50:00
Location Latitude
29.81889996
Location Longitude
-95.14327781
Commodity Released Type
Hvl Or Other Flammable Or Toxic Fluid Which Is A Gas At Ambient Conditions
Commodity Subtype
Other Hvl
Commodity Details
Alkylate
Unintentional Release Bbls
11
Intentional Release Bbls
0
Recovered Bbls
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Other
Accident Details
Other Third Party Pipeline Company
Incident Identified Datetime
2018-08-06 10:00:00
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2018-08-06 10:30:00
Restart Datetime
2018-08-09 17:00:00
On Site Datetime
2018-08-07 12:30:00
Nrc Rpt Datetime
2018-08-07 12:52:00
Nrc Rpt Num
1220794
Ignite Ind
No
Explode Ind
No
Upstream Valve Type Ind
Automatic
Downstream Valve Type Ind
Manual
Num Pub Evacuated
0
Pipe Fac Name
Miller Road Mainline Valve Station
Segment Name
1801
Onshore State Abbreviation
Tx
Onshore Postal Code
77049
Onshore City Name
Channelview
Onshore County Name
Harris
Designated Location
Milepost/valve Station
Designated Name
Valve Station
Federal
No
Location Type
Totally Contained On Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
72
Crossing
No
Pipe Facility Type
Intrastate
Item Involved
Valve
Valve Type
Mainline
Valve Mainline Type
Gate
Valve Manufacturer
Grove
Installation Year
1995
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
Yes
Soil Remed Ind
Yes
Vegetation Remed Ind
Yes
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
1200
Est Cost Prop Damage
30000
Est Cost Emergency
165000
Est Cost Environmental
20000
Est Cost Other
0
Prpty
216200
Accident Psig
500
Mop Psig
720
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
42240
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
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
Incident was reported by a third party pipeline company
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Non-Threaded Connection Failure
Eq Failure Type
Non-Threaded Connection Failure
Other Non Threaded Ind
O-Ring
Eq Additional Other Ind
Yes
Eq Additional Other Details
Age Of Valve/gasket Hardened
Preparer Name
E**** R********
Preparer Title
Regulatory Compliance Specialist Sr.
Preparer Email
E****************@w*******.com
Preparer Telephone
7132152846
Prepared Date
2018-10-01 00:00:00
Authorizer Name
C**** R****
Authorizer Telephone
9185736724
Authorizer Title
Manager Pipeline Safety
Authorizer Email
C**********@w*******.com
Narrative
Williams gcp damage prevention tech received a call from buckeye pipeline, just before 10:00 am on 8/6/18, letting him know there appeared to be some type of product on the ground at the block valve site off miller road 2 (this valve pen is shared with multiple pipeline companies in the area, and williams has a block valve in this pen for the 801 8" alky/c5 raffinate line). After receiving the call from buckeye, the williams damage prevention ops tech and supervisor went to the site. After inspecting the area, williams requested their pipeline control center shut the 801 line down at approximately 10:20 am. Other pipeline operators in the area began shutting in and additional williams personnel were dispatched to the site. Buckeye operates a gasoline line for targa-located in the same valve pen, and it was not obvious if the sheen was caused by either of the lines in the pen. Williams and buckeye sent a samples of the water/product mix to different labs for analysis in an attempt to determine the type of material that caused the sheen. The results were not helpful in pinpointing the type/origin of the material. Buckeye pipeline had assumed responsibility for the release, until the source of the release could be determined. Initial reports were made and hydro-excavation begin late afternoon/evening on 8/6/18. As of 7:30 am 8/7/18, hydro-excavation of buckeye's line and partial excavation of williams in-ground valve on the 801 line had not revealed a definitive source of the release. With the williams's line and buried valve partially exposed, williams's operations worked with their pipeline control to perform a bump test on the line to help determine if the release was from the williams's pipeline. At 11:05 am, tuesday, august 7, williams confirmed that the release was on their pipeline. Williams began transitioning control of the site at that time, from buckeye pipeline (which included contacting the trrc/nrc/harris county pollution control to inform them that williams was responsible for the release). Williams construction contractor began staging additional equipment and resources around 12:00 pm - 8/7/18. Hydro-excavation efforts continued throughout the day/night to fully expose the valve at this site, which revealed a small bonnet gasket leak (failed bonnet o-ring) on the grove g4n buried block valve. A temporary valve leak repair was made at approximately 5:00 pm on 8/9/18. Williams will continue to monitor the valve repair until the valve can be replaced. 8/22/18 pei report analytical results show that contamination was extremely limited, and the levels found by the lab do not warrant any additional soil removal at this time. All sample results were below the standards "protective of ground water". Pei's recommendation is that no further action is required at the site. Update 9/5/18 williams is currently planning to bring the two buried valves on this line above grade, which includes the miller road valve noted on the h-8 form, and replace them with new valves within the next year. Williams will continue to monitor the miller road block valve until the valve replacement project is complete.
| Report Received Date | 2018-08-24 00:00:00 |
|---|---|
| Iyear | 2018 |
| Report Number | 20180255 |
| Supplemental Number | 30996 |
| Report Type | Supplemental 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 | 2018-08-06 08:50:00 |
| Location Latitude | 29.81889996 Google Maps OpenStreetMap |
| Location Longitude | -95.14327781 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 | Alkylate |
| Unintentional Release Bbls | 11 |
| Intentional Release Bbls | 0 |
| Recovered Bbls | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Other |
| Accident Details | Other Third Party Pipeline Company |
| Incident Identified Datetime | 2018-08-06 10:00:00 |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2018-08-06 10:30:00 |
| Restart Datetime | 2018-08-09 17:00:00 |
| On Site Datetime | 2018-08-07 12:30:00 |
| Nrc Rpt Datetime | 2018-08-07 12:52:00 |
| Nrc Rpt Num | 1220794 NRC Report How to search |
| Ignite Ind | No |
| Explode Ind | No |
| Upstream Valve Type Ind | Automatic |
| Downstream Valve Type Ind | Manual |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Miller Road Mainline Valve Station |
| Segment Name | 1801 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77049 |
| Onshore City Name | Channelview |
| Onshore County Name | Harris |
| Designated Location | Milepost/valve Station |
| Designated Name | Valve Station |
| Federal | No |
| Location Type | Totally Contained On Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 72 |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| Item Involved | Valve |
| Valve Type | Mainline |
| Valve Mainline Type | Gate |
| Valve Manufacturer | Grove |
| Installation Year | 1995 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | Yes |
| Soil Remed Ind | Yes |
| Vegetation Remed Ind | Yes |
| 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 | 1200 |
| Est Cost Prop Damage | 30000 |
| Est Cost Emergency | 165000 |
| Est Cost Environmental | 20000 |
| Est Cost Other | 0 |
| Prpty | 216200 |
| Accident Psig | 500 |
| Mop Psig | 720 |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 42240 |
| 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 | 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 | Incident was reported by a third party pipeline company |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Non-Threaded Connection Failure |
| Eq Failure Type | Non-Threaded Connection Failure |
| Other Non Threaded Ind | O-Ring |
| Eq Additional Other Ind | Yes |
| Eq Additional Other Details | Age Of Valve/gasket Hardened |
| Preparer Name | E**** R******** |
| Preparer Title | Regulatory Compliance Specialist Sr. |
| Preparer Email | E****************@w*******.com |
| Preparer Telephone | 7132152846 |
| Prepared Date | 2018-10-01 00:00:00 |
| Authorizer Name | C**** R**** |
| Authorizer Telephone | 9185736724 |
| Authorizer Title | Manager Pipeline Safety |
| Authorizer Email | C**********@w*******.com |
| Narrative | Williams gcp damage prevention tech received a call from buckeye pipeline, just before 10:00 am on 8/6/18, letting him know there appeared to be some type of product on the ground at the block valve site off miller road 2 (this valve pen is shared with multiple pipeline companies in the area, and williams has a block valve in this pen for the 801 8" alky/c5 raffinate line). After receiving the call from buckeye, the williams damage prevention ops tech and supervisor went to the site. After inspecting the area, williams requested their pipeline control center shut the 801 line down at approximately 10:20 am. Other pipeline operators in the area began shutting in and additional williams personnel were dispatched to the site. Buckeye operates a gasoline line for targa-located in the same valve pen, and it was not obvious if the sheen was caused by either of the lines in the pen. Williams and buckeye sent a samples of the water/product mix to different labs for analysis in an attempt to determine the type of material that caused the sheen. The results were not helpful in pinpointing the type/origin of the material. Buckeye pipeline had assumed responsibility for the release, until the source of the release could be determined. Initial reports were made and hydro-excavation begin late afternoon/evening on 8/6/18. As of 7:30 am 8/7/18, hydro-excavation of buckeye's line and partial excavation of williams in-ground valve on the 801 line had not revealed a definitive source of the release. With the williams's line and buried valve partially exposed, williams's operations worked with their pipeline control to perform a bump test on the line to help determine if the release was from the williams's pipeline. At 11:05 am, tuesday, august 7, williams confirmed that the release was on their pipeline. Williams began transitioning control of the site at that time, from buckeye pipeline (which included contacting the trrc/nrc/harris county pollution control to inform them that williams was responsible for the release). Williams construction contractor began staging additional equipment and resources around 12:00 pm - 8/7/18. Hydro-excavation efforts continued throughout the day/night to fully expose the valve at this site, which revealed a small bonnet gasket leak (failed bonnet o-ring) on the grove g4n buried block valve. A temporary valve leak repair was made at approximately 5:00 pm on 8/9/18. Williams will continue to monitor the valve repair until the valve can be replaced. 8/22/18 pei report analytical results show that contamination was extremely limited, and the levels found by the lab do not warrant any additional soil removal at this time. All sample results were below the standards "protective of ground water". Pei's recommendation is that no further action is required at the site. Update 9/5/18 williams is currently planning to bring the two buried valves on this line above grade, which includes the miller road valve noted on the h-8 form, and replace them with new valves within the next year. Williams will continue to monitor the miller road block valve until the valve replacement project is complete. |
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