Incident details
Operator, cause, commodity and consequences with raw source fields.
HL incident on 2025-05-20 — 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)
$0
Incident datetime
2025-05-20 00:00 UTC
Report number
Location
GA
Narrative
During a yard check, a houston operator identified a gasoline release originating from the peeco flow switch on the line 01 pasadena incoming relief system at houston station. The line was shut down, relief switch was isolated, and response personnel were activated. The peeco paddle switch located upstream of the relief valves was removed, plugged, and technicians cut over to a magnatrol thermal dispersion switch located downstream of the relief valves (moc-2025-224). The line was restarted 08:11 plt while environmental remediation of the impacted area continued. Nrc report was made at 05:54 after discovery that response costs would exceed $50,000 at 05:12.
Detailed record list
Report Received Date
2025-05-20 00:00:00
Iyear
2025
Report Number
20250126
Supplemental Number
40906
Report Type
Original 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
Time Zone
Central
Daylight Savings Ind
Yes
Location Latitude
29.71901833
Location Longitude
-95.17919497
Commodity Released Type
Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions
Commodity Subtype
Gasoline (Non-Ethanol)
Unintentional Release Bbls
22
Recovered Bbls
9
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
System Part Involved
Onshore Pipeline, Including Valve Sites
On Off Shore
Onshore
Status When Identified
Normal Operation, Includes Pauses Between Batches And During Maintenance
Shutdown Due Accident Ind
Yes
Communication State Fed Ind
No
Nrc Rpt Num
1429106
Additional Nrc Report Numbers
1429283
Ignite Ind
No
Upstream Action Taken
Valve Closure
Upstream Valve Type Ind
Manual
Downstream Action Taken
Valve Closure
Downstream Valve Type Ind
Automatic
Notify Qualified Indiv Ind
Yes
Oil Spill Removal Org Ind
Yes
Osro Arrived On Site Dt
4/22/2025 6:31
Num Pub Evacuated
0
Pipe Fac Name
Houston Station
Segment Name
Unit 2294
Onshore State Abbreviation
Tx
Onshore Postal Code
77506
Onshore City Name
Pasadena
Onshore County Name
Harris
Designated Location
Survey Station No.
Designated Name
120
Federal
No
Location Type
Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Interstate
Item Involved
Relief Line And Relief Equipment
Installation Year
2022
Manufactured Year
Unknown
Material Involved
Carbon Steel
Release Type
Rupture
Rupture Orient
Circumferential
Rupture Width
1
Rupture Length
1
Wildlife Impact Ind
No
Soil Contamination
Yes
Long Term Assessment
No
Remediation Ind
No
Water Contam Ind
No
Could Be Hca
Yes
Commodity Reached Hca
Yes
Other Pop Ind
Yes
Other Pop Yes No
Yes
Est Cost Oper Paid
0
Est Cost Gas Released
27
Est Cost Prop Damage
0
Est Cost Emergency
45000
Est Cost Environmental
10000
Est Cost Other
0
Prpty
55027
Num Persons Hosp Not Ovnght
0
Num Injured Treated By Emt
0
Num Resident Building Affctd
0
Num Business Building Affctd
0
Accident Psig
76
Mop Psig
275
Mop Cfr Section
Component Design Pressure �195.406(A)(2)
Maop Established Date
1963-10-01 00:00:00
Maop Reversal Flow Ind
No
Accident Pressure
Pressure Did Not Exceed Mop
Pressure Restriction Ind
No
Length Segment Isolated
8
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
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
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
Instrumentation Ind
Yes
Additional Vibration Ind
Yes
Preparer Name
R***** D*****
Preparer Title
Sr Compliance Specialist
Preparer Email
R******@c******.com
Preparer Telephone
4097904288
Prepared Date
2025-05-20 00:00:00
Authorizer Name
Q****** F******
Authorizer Telephone
7706879672
Authorizer Email
Q*******@c******.com
Narrative
During a yard check, a houston operator identified a gasoline release originating from the peeco flow switch on the line 01 pasadena incoming relief system at houston station. The line was shut down, relief switch was isolated, and response personnel were activated. The peeco paddle switch located upstream of the relief valves was removed, plugged, and technicians cut over to a magnatrol thermal dispersion switch located downstream of the relief valves (moc-2025-224). The line was restarted 08:11 plt while environmental remediation of the impacted area continued. Nrc report was made at 05:54 after discovery that response costs would exceed $50,000 at 05:12.
| Report Received Date | 2025-05-20 00:00:00 |
|---|---|
| Iyear | 2025 |
| Report Number | 20250126 |
| Supplemental Number | 40906 |
| Report Type | Original 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 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Latitude | 29.71901833 Google Maps OpenStreetMap |
| Location Longitude | -95.17919497 Google Maps OpenStreetMap |
| Commodity Released Type | Refined And/or Petroleum Product (Non-Hvl) Which Is A Liquid At Ambient Conditions |
| Commodity Subtype | Gasoline (Non-Ethanol) |
| Unintentional Release Bbls | 22 |
| Recovered Bbls | 9 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| On Off Shore | Onshore |
| Status When Identified | Normal Operation, Includes Pauses Between Batches And During Maintenance |
| Shutdown Due Accident Ind | Yes |
| Communication State Fed Ind | No |
| Nrc Rpt Num | 1429106 NRC Report How to search |
| Additional Nrc Report Numbers | 1429283 |
| Ignite Ind | No |
| Upstream Action Taken | Valve Closure |
| Upstream Valve Type Ind | Manual |
| Downstream Action Taken | Valve Closure |
| Downstream Valve Type Ind | Automatic |
| Notify Qualified Indiv Ind | Yes |
| Oil Spill Removal Org Ind | Yes |
| Osro Arrived On Site Dt | 4/22/2025 6:31 |
| Num Pub Evacuated | 0 |
| Pipe Fac Name | Houston Station |
| Segment Name | Unit 2294 |
| Onshore State Abbreviation | Tx |
| Onshore Postal Code | 77506 |
| Onshore City Name | Pasadena |
| Onshore County Name | Harris |
| Designated Location | Survey Station No. |
| Designated Name | 120 |
| Federal | No |
| Location Type | Originated On Operator-Controlled Property, But Then Flowed Or Migrated Off The Property |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Interstate |
| Item Involved | Relief Line And Relief Equipment |
| Installation Year | 2022 |
| Manufactured Year | Unknown |
| Material Involved | Carbon Steel |
| Release Type | Rupture |
| Rupture Orient | Circumferential |
| Rupture Width | 1 |
| Rupture Length | 1 |
| Wildlife Impact Ind | No |
| Soil Contamination | Yes |
| Long Term Assessment | No |
| Remediation Ind | No |
| Water Contam Ind | No |
| Could Be Hca | Yes |
| Commodity Reached Hca | Yes |
| Other Pop Ind | Yes |
| Other Pop Yes No | Yes |
| Est Cost Oper Paid | 0 |
| Est Cost Gas Released | 27 |
| Est Cost Prop Damage | 0 |
| Est Cost Emergency | 45000 |
| Est Cost Environmental | 10000 |
| Est Cost Other | 0 |
| Prpty | 55027 |
| Num Persons Hosp Not Ovnght | 0 |
| Num Injured Treated By Emt | 0 |
| Num Resident Building Affctd | 0 |
| Num Business Building Affctd | 0 |
| Accident Psig | 76 |
| Mop Psig | 275 |
| Mop Cfr Section | Component Design Pressure �195.406(A)(2) View CFR 49 §192 |
| Maop Established Date | 1963-10-01 00:00:00 |
| Maop Reversal Flow Ind | No |
| Accident Pressure | Pressure Did Not Exceed Mop |
| Pressure Restriction Ind | No |
| Length Segment Isolated | 8 |
| 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 | 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 |
| 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 |
| Instrumentation Ind | Yes |
| Additional Vibration Ind | Yes |
| Preparer Name | R***** D***** |
| Preparer Title | Sr Compliance Specialist |
| Preparer Email | R******@c******.com |
| Preparer Telephone | 4097904288 |
| Prepared Date | 2025-05-20 00:00:00 |
| Authorizer Name | Q****** F****** |
| Authorizer Telephone | 7706879672 |
| Authorizer Email | Q*******@c******.com |
| Narrative | During a yard check, a houston operator identified a gasoline release originating from the peeco flow switch on the line 01 pasadena incoming relief system at houston station. The line was shut down, relief switch was isolated, and response personnel were activated. The peeco paddle switch located upstream of the relief valves was removed, plugged, and technicians cut over to a magnatrol thermal dispersion switch located downstream of the relief valves (moc-2025-224). The line was restarted 08:11 plt while environmental remediation of the impacted area continued. Nrc report was made at 05:54 after discovery that response costs would exceed $50,000 at 05:12. |
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