Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2014-06-18 — GA
Operator
Colonial Pipeline Co
Cause
Equipment Failure
Commodity
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Program
HL
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$11,734
Incident datetime
2014-06-18 19:55
Report number
Location
GA
Narrative
On 6/18/2014 at 19:55 the collins tank farm operator was attempting to prove the line 7 meter, but the proving attempts failed. When the operator went outside to check on the prover, he discovered product leaking from the prover ram. Immediate notifications were made and the line was shut down. The prover was isolated and drained to ensure no further release of product. The event did not meet any immediate reporting requirements for federal, state, or local agencies; therefore no external notifications were made. Incident analysis determined that the release occurred when the prover ram operator limit train seized, followed by a failure of the stem stop nut, which eliminated the operator torque out stop function, thus allowing the travel to continue until reaching the end of the stem threads. The extended travel of the stem caused the stem threads to enter the packing gland area allowing product to escape. The limit train was replaced and a stop nut with a different thread pattern than the stem nut was installed to prevent the nut from backing off.
Detailed record list
Report Received Date
2014-07-01 00:00:00
Iyear
2014
Report Number
20140253
Supplemental Number
19692
Report Type
Supplemental Final
Operator Id
2552
Name
Colonial Pipeline Co
Operator Street Address
1000 Lake St.
Operator City Name
Alpharetta
Operator State Abbreviation
GA
Operator Postal Code
30009
Local Datetime
2014-06-18 19:55:00
Location Latitude
31.64875
Location Longitude
-89.51924
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Diesel, Fuel Oil, Kerosene, Jet Fuel
Unintentional Release Bbls
1.6
Recovered Bbls
1.6
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
Incident Identified Datetime
2014-06-18 19:55:00
System Part Involved
Onshore Terminal/tank Farm Equipment And Piping
On Off Shore
Onshore
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2014-06-18 20:05:00
Restart Datetime
2014-06-18 22:25:00
On Site Datetime
2014-06-18 20:45:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0
Pipe Fac Name
Colonial Pipeline Company / Collins Tank Farm
Segment Name
Collins Tank Farm - 0327
Onshore State Abbreviation
Ms
Onshore Postal Code
39428
Onshore City Name
Collins
Onshore County Name
Covington
Designated Location
Milepost/valve Station
Designated Name
Ctf Prover
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
Interstate
Item Involved
Meter/prover
Material Involved
Material Other Than Carbon Steel
Material Details
Seal
Release Type
Leak
Leak Type
Seal Or Packing
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
Yes
Surface Contam Ind
Yes
Amount Released
0.4
Rel Water Name
Manifold Retention Pond (Impounded Waters. Not Waters Of The U.s.)
Could Be Hca
No
Commodity Reached Hca
No
Est Cost Oper Paid
0
Est Cost Gas Released
188
Est Cost Prop Damage
11734
Est Cost Emergency
14870
Est Cost Environmental
0
Est Cost Other
0
Prpty
26792
Accident Psig
20
Mop Psig
275
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
Yes
Scada Conf Ind
No
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
Equipment failure not related to the controller or control room
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Equipment Failure
Cause Details
Other Equipment Failure
Eq Failure Type
Other Equipment Failure
Failure Details
The Prover Ram Operator Limit Train Seized, Followed By A Failure Of The Stem Stop Nut, Which Eliminated The Operator Torque Out Stop Function, Thus Allowing The Travel To Continue Until Reaching The End Of The Stem Threads. The Like Thread Design Of The Stop Nut And Stem Allowed The Stop Nut To Back Off. The Extended Travel Of The Stem Caused The Stem Threads To Enter The Packing Gland Area Allowing Product To Escape.
Additional Installation Ind
Yes
Preparer Name
K**** M****
Preparer Title
Compliance Coordinator
Preparer Email
K*****@c******.com
Preparer Telephone
601-765-9768
Preparer Fax
770-754-8489
Prepared Date
2014-08-29 00:00:00
Authorizer Name
K**** M****
Authorizer Telephone
601-765-9768
Authorizer Title
Compliance Coordinator
Authorizer Email
K*****@c******.com
Narrative
On 6/18/2014 at 19:55 the collins tank farm operator was attempting to prove the line 7 meter, but the proving attempts failed. When the operator went outside to check on the prover, he discovered product leaking from the prover ram. Immediate notifications were made and the line was shut down. The prover was isolated and drained to ensure no further release of product. The event did not meet any immediate reporting requirements for federal, state, or local agencies; therefore no external notifications were made. Incident analysis determined that the release occurred when the prover ram operator limit train seized, followed by a failure of the stem stop nut, which eliminated the operator torque out stop function, thus allowing the travel to continue until reaching the end of the stem threads. The extended travel of the stem caused the stem threads to enter the packing gland area allowing product to escape. The limit train was replaced and a stop nut with a different thread pattern than the stem nut was installed to prevent the nut from backing off.
| Report Received Date | 2014-07-01 00:00:00 |
|---|---|
| Iyear | 2014 |
| Report Number | 20140253 |
| Supplemental Number | 19692 |
| Report Type | Supplemental Final |
| Operator Id | 2552 PHMSA Enforcement |
| Name | Colonial Pipeline Co |
| Operator Street Address | 1000 Lake St. |
| Operator City Name | Alpharetta |
| Operator State Abbreviation | GA |
| Operator Postal Code | 30009 |
| Local Datetime | 2014-06-18 19:55:00 |
| Location Latitude | 31.64875 Google Maps OpenStreetMap |
| Location Longitude | -89.51924 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Diesel, Fuel Oil, Kerosene, Jet Fuel |
| Unintentional Release Bbls | 1.6 |
| Recovered Bbls | 1.6 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| Incident Identified Datetime | 2014-06-18 19:55:00 |
| System Part Involved | Onshore Terminal/tank Farm Equipment And Piping |
| On Off Shore | Onshore |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2014-06-18 20:05:00 |
| Restart Datetime | 2014-06-18 22:25:00 |
| On Site Datetime | 2014-06-18 20:45:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Colonial Pipeline Company / Collins Tank Farm |
| Segment Name | Collins Tank Farm - 0327 |
| Onshore State Abbreviation | Ms |
| Onshore Postal Code | 39428 |
| Onshore City Name | Collins |
| Onshore County Name | Covington |
| Designated Location | Milepost/valve Station |
| Designated Name | Ctf Prover |
| 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 | Interstate |
| Item Involved | Meter/prover |
| Material Involved | Material Other Than Carbon Steel |
| Material Details | Seal |
| Release Type | Leak |
| Leak Type | Seal Or Packing |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | Yes |
| Surface Contam Ind | Yes |
| Amount Released | 0.4 |
| Rel Water Name | Manifold Retention Pond (Impounded Waters. Not Waters Of The U.s.) |
| Could Be Hca | No |
| Commodity Reached Hca | No |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 188 |
| Est Cost Prop Damage | 11734 |
| Est Cost Emergency | 14870 |
| Est Cost Environmental | 0 |
| Est Cost Other | 0 |
| Prpty | 26792 |
| Accident Psig | 20 |
| Mop Psig | 275 |
| 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 | Yes |
| Scada Conf Ind | No |
| 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 | Equipment failure not related to the controller or control room |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Equipment Failure |
| Cause Details | Other Equipment Failure |
| Eq Failure Type | Other Equipment Failure |
| Failure Details | The Prover Ram Operator Limit Train Seized, Followed By A Failure Of The Stem Stop Nut, Which Eliminated The Operator Torque Out Stop Function, Thus Allowing The Travel To Continue Until Reaching The End Of The Stem Threads. The Like Thread Design Of The Stop Nut And Stem Allowed The Stop Nut To Back Off. The Extended Travel Of The Stem Caused The Stem Threads To Enter The Packing Gland Area Allowing Product To Escape. |
| Additional Installation Ind | Yes |
| Preparer Name | K**** M**** |
| Preparer Title | Compliance Coordinator |
| Preparer Email | K*****@c******.com |
| Preparer Telephone | 601-765-9768 |
| Preparer Fax | 770-754-8489 |
| Prepared Date | 2014-08-29 00:00:00 |
| Authorizer Name | K**** M**** |
| Authorizer Telephone | 601-765-9768 |
| Authorizer Title | Compliance Coordinator |
| Authorizer Email | K*****@c******.com |
| Narrative | On 6/18/2014 at 19:55 the collins tank farm operator was attempting to prove the line 7 meter, but the proving attempts failed. When the operator went outside to check on the prover, he discovered product leaking from the prover ram. Immediate notifications were made and the line was shut down. The prover was isolated and drained to ensure no further release of product. The event did not meet any immediate reporting requirements for federal, state, or local agencies; therefore no external notifications were made. Incident analysis determined that the release occurred when the prover ram operator limit train seized, followed by a failure of the stem stop nut, which eliminated the operator torque out stop function, thus allowing the travel to continue until reaching the end of the stem threads. The extended travel of the stem caused the stem threads to enter the packing gland area allowing product to escape. The limit train was replaced and a stop nut with a different thread pattern than the stem nut was installed to prevent the nut from backing off. |
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