Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2012-05-23 — CA
Operator
San Diego Gas & Electric Co
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$36,000
Incident datetime
2012-05-23 09:43
Report number
Location
CA
Narrative
During planned pipeline blowdown, escaping gas ignited at location of overhead electrical facilities. Gas was shut off immediately, stopping fire. Non-energized static line dropped across roadway and was stuck by 2 vehicles. Drug and alcohol tests were performed on 8 sdg&e employees and 5 contractors. All passed. The immediate correction is to take an electric outage on all overhead electric circuits near blowdown sites. If that is not possible, a site evaluation will be performed by a qualified consultant to determine the safe distance whereby a blowdown may be performed. The permanent solution is to develop a set of guidelines listing the distances, voltages, weather conditions, etc., whereby blowdowns may be safely performed at any site. Any blowdown deviating from those guidelines would require a site-specific evaluation.
Detailed record list
Report Received Date
2012-06-15 00:00:00
Iyear
2012
Report Number
20120064
Supplemental Number
15684
Report Type
Supplemental Final
Operator Id
18112
Name
San Diego Gas & Electric Co
Operator Street Address
8326 Century Park Court
Operator City Name
San Diego
Operator State Abbreviation
CA
Operator Postal Code
92123
Local Datetime
2012-05-23 09:43:00
Location Latitude
32.84887
Location Longitude
-117.18463
Nrc Rpt Num
101243
Nrc Rpt Datetime
2012-05-23 11:30:00
Commodity Released Type
Natural Gas
Unintentional Release
0
Intentional Release
40
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
No
Shutdown Explain
Planned Blowdown Controlled By Closing Valve. Pipeline Still Energized
Ignite Ind
Yes
Explode Ind
No
Num Pub Evacuated
0
Incident Identified Datetime
2012-05-23 09:43:00
On Site Datetime
2012-05-23 09:43:00
On Off Shore
Onshore
Onshore State Abbreviation
Ca
Onshore Postal Code
92122
Onshore City Name
San Diego
Onshore County Name
San Diego
Designated Location
Milepost
Designated Name
45.73
Pipe Fac Name
Line 3010
Segment Name
Line 3010
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Valve
Valve Type
Auxiliary Or Other Valve
Installation Year
1979
Material Involved
Carbon Steel
Release Type
Other
Release Type Details
Controlled Release Through Open Valve.
Class Location Type
Class 3 Location
Could Be Hca
Yes
Determination Method
Method2
Pir Radius
505
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
32000
Est Cost Unintentional Release
0
Est Cost Intentional Release
240
Est Cost Prop Damage
36000
Est Cost Emergency
1000
Est Cost Other
0
Prpty
69240
Accident Psig
51
Mop Psig
595
Mop Cfr Section
Not On Omb-Approved Form When Submitted
Accident Pressure
Pressure Did Not Exceed Maop
Pressure Restriction Ind
No
Upstream Valve Type Ind
Manual
Downstream Valve Type Ind
Manual
Length Segment Isolated
1
Internal Inspection Ind
No
Unsuitable Mainline Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission System
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Local Operating Personnel, Including Contractors
Operator Type
Operator Employee
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 resulted from planned blowdown.
Employee Drug Test Ind
Yes
Contractor Drug Test Ind
Yes
Num Employees Tested
8
Num Employees Failed
0
Num Contractors Tested
5
Num Contractors Failed
0
Cause
Other Outside Force Damage
Cause Details
Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident
Outside Force Type
Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident
Preparer Name
W* J*** K*****
Preparer Title
Sr. Pipeline Safety Advisor
Preparer Email
W******@s**************.com
Preparer Telephone
213 305-8660
Preparer Fax
213 244-8155
Authorizer Name
W* J*** K*****
Authorizer Title
Sr. Pipeline Safety Advisor
Authorizer Telephone
213 305-8660
Authorizer Email
W******@s**************.com
Narrative
During planned pipeline blowdown, escaping gas ignited at location of overhead electrical facilities. Gas was shut off immediately, stopping fire. Non-energized static line dropped across roadway and was stuck by 2 vehicles. Drug and alcohol tests were performed on 8 sdg&e employees and 5 contractors. All passed. The immediate correction is to take an electric outage on all overhead electric circuits near blowdown sites. If that is not possible, a site evaluation will be performed by a qualified consultant to determine the safe distance whereby a blowdown may be performed. The permanent solution is to develop a set of guidelines listing the distances, voltages, weather conditions, etc., whereby blowdowns may be safely performed at any site. Any blowdown deviating from those guidelines would require a site-specific evaluation.
| Report Received Date | 2012-06-15 00:00:00 |
|---|---|
| Iyear | 2012 |
| Report Number | 20120064 |
| Supplemental Number | 15684 |
| Report Type | Supplemental Final |
| Operator Id | 18112 PHMSA Enforcement |
| Name | San Diego Gas & Electric Co |
| Operator Street Address | 8326 Century Park Court |
| Operator City Name | San Diego |
| Operator State Abbreviation | CA |
| Operator Postal Code | 92123 |
| Local Datetime | 2012-05-23 09:43:00 |
| Location Latitude | 32.84887 Google Maps OpenStreetMap |
| Location Longitude | -117.18463 Google Maps OpenStreetMap |
| Nrc Rpt Num | 101243 NRC Report How to search |
| Nrc Rpt Datetime | 2012-05-23 11:30:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 0 |
| Intentional Release | 40 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | No |
| Shutdown Explain | Planned Blowdown Controlled By Closing Valve. Pipeline Still Energized |
| Ignite Ind | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0 |
| Incident Identified Datetime | 2012-05-23 09:43:00 |
| On Site Datetime | 2012-05-23 09:43:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ca |
| Onshore Postal Code | 92122 |
| Onshore City Name | San Diego |
| Onshore County Name | San Diego |
| Designated Location | Milepost |
| Designated Name | 45.73 |
| Pipe Fac Name | Line 3010 |
| Segment Name | Line 3010 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Valve |
| Valve Type | Auxiliary Or Other Valve |
| Installation Year | 1979 |
| Material Involved | Carbon Steel |
| Release Type | Other |
| Release Type Details | Controlled Release Through Open Valve. |
| Class Location Type | Class 3 Location |
| Could Be Hca | Yes |
| Determination Method | Method2 |
| Pir Radius | 505 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 32000 |
| Est Cost Unintentional Release | 0 |
| Est Cost Intentional Release | 240 |
| Est Cost Prop Damage | 36000 |
| Est Cost Emergency | 1000 |
| Est Cost Other | 0 |
| Prpty | 69240 |
| Accident Psig | 51 |
| Mop Psig | 595 |
| Mop Cfr Section | Not On Omb-Approved Form When Submitted View CFR 49 §192 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Pressure Restriction Ind | No |
| Upstream Valve Type Ind | Manual |
| Downstream Valve Type Ind | Manual |
| Length Segment Isolated | 1 |
| Internal Inspection Ind | No |
| Unsuitable Mainline Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission System |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Local Operating Personnel, Including Contractors |
| Operator Type | Operator Employee |
| 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 resulted from planned blowdown. |
| Employee Drug Test Ind | Yes |
| Contractor Drug Test Ind | Yes |
| Num Employees Tested | 8 |
| Num Employees Failed | 0 |
| Num Contractors Tested | 5 |
| Num Contractors Failed | 0 |
| Cause | Other Outside Force Damage |
| Cause Details | Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident |
| Outside Force Type | Nearby Industrial, Man-Made, Or Other Fire/explosion As Primary Cause Of Incident |
| Preparer Name | W* J*** K***** |
| Preparer Title | Sr. Pipeline Safety Advisor |
| Preparer Email | W******@s**************.com |
| Preparer Telephone | 213 305-8660 |
| Preparer Fax | 213 244-8155 |
| Authorizer Name | W* J*** K***** |
| Authorizer Title | Sr. Pipeline Safety Advisor |
| Authorizer Telephone | 213 305-8660 |
| Authorizer Email | W******@s**************.com |
| Narrative | During planned pipeline blowdown, escaping gas ignited at location of overhead electrical facilities. Gas was shut off immediately, stopping fire. Non-energized static line dropped across roadway and was stuck by 2 vehicles. Drug and alcohol tests were performed on 8 sdg&e employees and 5 contractors. All passed. The immediate correction is to take an electric outage on all overhead electric circuits near blowdown sites. If that is not possible, a site evaluation will be performed by a qualified consultant to determine the safe distance whereby a blowdown may be performed. The permanent solution is to develop a set of guidelines listing the distances, voltages, weather conditions, etc., whereby blowdowns may be safely performed at any site. Any blowdown deviating from those guidelines would require a site-specific evaluation. |
External Resources
PHMSA pipeline safety insights.
Product
Features
Company
All rights reserved. Copyright © by ClearPHMSA