Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2012-06-06 — CA
Operator
Pacific Gas & Electric Co
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$10,000
Incident datetime
2012-06-06 09:10
Report number
Location
CA, SANTA CLARA
Narrative
At approximately 0900 hours at 1446 heckman way in san jose, water entered a 3/4-inch steel gas distribution service line, causing gas service interruption to 67customers. The night prior to this incident, a tree branch fell on a 12kv primary electrical line causing the line to sag and contact the 120v secondary line creating a surge on the secondary line. The surge went to ground through the water line creating a hole in the 1-inch copper potable water line and caused a high pressure water stream. The electic fault current also damaged the steel gas distribution service line nearby, resulting in a release of gas and allowing an entry point for water into the gas system. Gsrs were on scene at 0945 hrs and shut off gas services at the riser valves to affected customers. Pg&e crews were on scene at 1200 hours and stopped the flow of gas at 1230 hours. At 1255 hours an emergency operations center was opened to help identify the scope of the incident, coordinate the shut-in and restore gas service to the affected customers along with other coordination activities. All 67 customers were ready to have gas service restored on june 7, 2012 at 0900 hours. Four can't get in (cgi) notices were left at the resident's home and the remaining customers had gas service restored on june 7, 2012 at 2030 hours. The four cgis were restored when the residents called for service restoration. There were no injuries or fatalities and no ignition. Damages to company property are less than $50,000. The event was reported to the DOT and cpuc because of the significance of the event.
Detailed record list
Occurred At
2012-06-06 09:10:00
Year
2012
Report Received Date
2012-07-06 00:00:00
Iyear
2012.0
Report Number
20120050.0
Supplemental Number
15585.0
Report Type
Supplemental Final
Operator Id
15007
Name
Pacific Gas & Electric Co
Operator Street Address
6121 Bollinger Canyon Rd.
Operator City Name
San Ramon
Operator State Abbreviation
CA
Operator Postal Code
94583
Local Datetime
2012-06-06 09:00:00
Location Street Address
1446 Heckman Way
Location City Name
San Jose
Location County Name
Santa Clara
Location State Abbreviation
CA
Location Postal Code
95129
Location Latitude
37.29691
Location Longitude
-122.00521
Nrc Rpt Datetime
2012-06-06 00:00:00
Nrc Rpt Num
1013754
Commodity Released Type
Natural Gas
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Incident Identified Datetime
2012-06-06 09:10:00
On Site Datetime
2012-06-06 09:45:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Privately Owned
System Part Involved
Service
Pipe Diameter
0.75
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Other
Leak Type Other
Water Entered Gas Line
Release Type Details
A Downed 12kv Power Line Caused A Surge To A Grounded Water Line Creating A Hole In The Copper Water Service Line. The Copper Water Service Line Was Touching The Steel Gas Line And The Electric Fault Current Also Created A Hole In The Gas Line Which Allowed An Entry Point For The Water Into The Gas System.
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
10000.0
Est Cost Emergency
10000.0
Est Cost Other
0.0
Est Cost Unintentional Release
1000.0
Prpty
21000.0
Commercial Affected
67.0
Industrial Affected
0.0
Residences Affected
67.0
Accident Psig
57.0
Normal Psig
57.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
No scada on this part of the system
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Electrical Arcing From Other Equipment Or Facility
Outside Force Type
Electrical Arcing From Other Equipment Or Facility
Preparer Name
C***** D****
Preparer Title
Gas Compliance Engineer
Preparer Email
C***@p**.com
Preparer Telephone
925-974-4378
Preparer Fax
925-974-4232
Authorizer Name
L******* D*******
Authorizer Title
Acting Manager Regulatory Compliance
Authorizer Telephone
925-974-4313
Authorizer Email
L***@p**.com
Narrative
At approximately 0900 hours at 1446 heckman way in san jose, water entered a 3/4-inch steel gas distribution service line, causing gas service interruption to 67customers. The night prior to this incident, a tree branch fell on a 12kv primary electrical line causing the line to sag and contact the 120v secondary line creating a surge on the secondary line. The surge went to ground through the water line creating a hole in the 1-inch copper potable water line and caused a high pressure water stream. The electic fault current also damaged the steel gas distribution service line nearby, resulting in a release of gas and allowing an entry point for water into the gas system. Gsrs were on scene at 0945 hrs and shut off gas services at the riser valves to affected customers. Pg&e crews were on scene at 1200 hours and stopped the flow of gas at 1230 hours. At 1255 hours an emergency operations center was opened to help identify the scope of the incident, coordinate the shut-in and restore gas service to the affected customers along with other coordination activities. All 67 customers were ready to have gas service restored on june 7, 2012 at 0900 hours. Four can't get in (cgi) notices were left at the resident's home and the remaining customers had gas service restored on june 7, 2012 at 2030 hours. The four cgis were restored when the residents called for service restoration. There were no injuries or fatalities and no ignition. Damages to company property are less than $50,000. The event was reported to the DOT and cpuc because of the significance of the event.
| Occurred At | 2012-06-06 09:10:00 |
|---|---|
| Year | 2012 |
| Report Received Date | 2012-07-06 00:00:00 |
| Iyear | 2012.0 |
| Report Number | 20120050.0 |
| Supplemental Number | 15585.0 |
| Report Type | Supplemental Final |
| Operator Id | 15007 PHMSA Enforcement |
| Name | Pacific Gas & Electric Co |
| Operator Street Address | 6121 Bollinger Canyon Rd. |
| Operator City Name | San Ramon |
| Operator State Abbreviation | CA |
| Operator Postal Code | 94583 |
| Local Datetime | 2012-06-06 09:00:00 |
| Location Street Address | 1446 Heckman Way |
| Location City Name | San Jose |
| Location County Name | Santa Clara |
| Location State Abbreviation | CA |
| Location Postal Code | 95129 |
| Location Latitude | 37.29691 Google Maps OpenStreetMap |
| Location Longitude | -122.00521 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2012-06-06 00:00:00 |
| Nrc Rpt Num | 1013754 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Incident Identified Datetime | 2012-06-06 09:10:00 |
| On Site Datetime | 2012-06-06 09:45:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Service |
| Pipe Diameter | 0.75 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Other |
| Leak Type Other | Water Entered Gas Line |
| Release Type Details | A Downed 12kv Power Line Caused A Surge To A Grounded Water Line Creating A Hole In The Copper Water Service Line. The Copper Water Service Line Was Touching The Steel Gas Line And The Electric Fault Current Also Created A Hole In The Gas Line Which Allowed An Entry Point For The Water Into The Gas System. |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 10000.0 |
| Est Cost Emergency | 10000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 1000.0 |
| Prpty | 21000.0 |
| Commercial Affected | 67.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 67.0 |
| Accident Psig | 57.0 |
| Normal Psig | 57.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 | No scada on this part of the system |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Electrical Arcing From Other Equipment Or Facility |
| Outside Force Type | Electrical Arcing From Other Equipment Or Facility |
| Preparer Name | C***** D**** |
| Preparer Title | Gas Compliance Engineer |
| Preparer Email | C***@p**.com |
| Preparer Telephone | 925-974-4378 |
| Preparer Fax | 925-974-4232 |
| Authorizer Name | L******* D******* |
| Authorizer Title | Acting Manager Regulatory Compliance |
| Authorizer Telephone | 925-974-4313 |
| Authorizer Email | L***@p**.com |
| Narrative | At approximately 0900 hours at 1446 heckman way in san jose, water entered a 3/4-inch steel gas distribution service line, causing gas service interruption to 67customers. The night prior to this incident, a tree branch fell on a 12kv primary electrical line causing the line to sag and contact the 120v secondary line creating a surge on the secondary line. The surge went to ground through the water line creating a hole in the 1-inch copper potable water line and caused a high pressure water stream. The electic fault current also damaged the steel gas distribution service line nearby, resulting in a release of gas and allowing an entry point for water into the gas system. Gsrs were on scene at 0945 hrs and shut off gas services at the riser valves to affected customers. Pg&e crews were on scene at 1200 hours and stopped the flow of gas at 1230 hours. At 1255 hours an emergency operations center was opened to help identify the scope of the incident, coordinate the shut-in and restore gas service to the affected customers along with other coordination activities. All 67 customers were ready to have gas service restored on june 7, 2012 at 0900 hours. Four can't get in (cgi) notices were left at the resident's home and the remaining customers had gas service restored on june 7, 2012 at 2030 hours. The four cgis were restored when the residents called for service restoration. There were no injuries or fatalities and no ignition. Damages to company property are less than $50,000. The event was reported to the DOT and cpuc because of the significance of the event. |
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