Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-10-21 — 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)
$1,218,000
Incident datetime
2017-10-21 16:31
Report number
Location
CA, SAN JOAQUIN
Narrative
On october 21, 2017 at approximately 1631 hours, pg&e was notified of a vehicle impact near the intersection of kasson rd and durham ferry rd, in the city of tracy. The vehicle drove through the fencing & bollards and struck district reg station tyhp-75, specifically the sensing lines, resulting in an unintentional release of gas and subsequent overpressure of the distribution system downstream of the reg station. The station is fed off line 108 near mile point (mp) 5.70. Pg&e gsr arrived on-site at 1706 hours. Pg&e m&c arrived on-site and stopped the flow of gas by closing the station valves by 1755 hours. The overpressurization of the 6-inch plastic distribution main downstream of the reg station resulted in a fusion failure near 560 e durham ferry rd. The fusion failure was first reported at 1948 hours. Approximately 9,500 ft of 6-inch plastic main and 4 services were impacted. The services that were impacted are 560 e durham ferry rd, 120 e durham ferry rd, 272 w durham ferry rd, and 492 w durham ferry rd. There were no reported injuries, fatalities or ignition. Four customers gas service was impacted. Cng tanks were provided to the impacted customers. The station rebuild was completed on 12/20/2017. Police & fire department was reported on-site. No media was reported on-site. This incident was reported to the DOT & cpuc due to the unintentional release of gas and estimated damage costs exceeding $50,000. An update on the gas flow stop time & volume was provided to the DOT (1194060) on 10/23/17. Please note for the phmsa7100 report that the incident is specific to the vehicle impact incident to the district reg station. For part e, the maop of the district reg station is 720 and operating pressure is 700 psig. The maop of the distribution system downstream of the district reg station is 60 psig and operating pressure is 54 psig. The distribution system downstream of the district reg station exceeded 110% maop.
Detailed record list
Occurred At
2017-10-21 16:31:00
Year
2017
Report Received Date
2017-11-15 00:00:00
Iyear
2017.0
Report Number
20170107.0
Supplemental Number
30738.0
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
2017-10-21 16:31:00
Location Street Address
Kasson Rd And Durham Ferry Rd
Location City Name
Tracy
Location County Name
San Joaquin
Location State Abbreviation
CA
Location Postal Code
95304
Location Latitude
37.6672
Location Longitude
-121.2787
Nrc Rpt Datetime
2017-10-21 20:48:00
Nrc Rpt Num
1193949
Commodity Released Type
Natural Gas
Unintentional Release
357.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
2.0
Incident Identified Datetime
2017-10-21 16:31:00
On Site Datetime
2017-10-21 17:06:00
Federal
No
Location Type
Utility Right-Of-Way / Easement
Incident Area Type
Aboveground
Incident Area Subtype
Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set)
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
District Regulator/metering Station
Installation Year
1999.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Other
Release Type Details
Vehicle Impact To Reg Station
Class Location Type
Class 1 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
1218000.0
Est Cost Emergency
177000.0
Est Cost Other
0.0
Est Cost Unintentional Release
1000.0
Prpty
1396000.0
Commercial Affected
0.0
Industrial Affected
1.0
Residences Affected
3.0
Accident Psig
700.0
Normal Psig
54.0
Mop Psig
60.0
Accident Pressure
Pressure Exceeded The Applicable Allowance In 192.201
Scada In Place Ind
No
Accident Identifier
Notification From Emergency Responder
Investigation Status
No, the facility was not monitored by a controller(s) at the time of the incident
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Other Outside Force Damage
Cause Details
Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation
Outside Force Type
Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation
Vehicle Subtype
Third Party
Preparer Name
S****** R****
Preparer Title
Gas Engineer
Preparer Email
S***@p**.com
Preparer Telephone
925-413-7311
Authorizer Name
S**** R*******
Authorizer Title
Manager Regulatory Compliance
Authorizer Telephone
925-328-5776
Authorizer Email
G***@p**.com
Narrative
On october 21, 2017 at approximately 1631 hours, pg&e was notified of a vehicle impact near the intersection of kasson rd and durham ferry rd, in the city of tracy. The vehicle drove through the fencing & bollards and struck district reg station tyhp-75, specifically the sensing lines, resulting in an unintentional release of gas and subsequent overpressure of the distribution system downstream of the reg station. The station is fed off line 108 near mile point (mp) 5.70. Pg&e gsr arrived on-site at 1706 hours. Pg&e m&c arrived on-site and stopped the flow of gas by closing the station valves by 1755 hours. The overpressurization of the 6-inch plastic distribution main downstream of the reg station resulted in a fusion failure near 560 e durham ferry rd. The fusion failure was first reported at 1948 hours. Approximately 9,500 ft of 6-inch plastic main and 4 services were impacted. The services that were impacted are 560 e durham ferry rd, 120 e durham ferry rd, 272 w durham ferry rd, and 492 w durham ferry rd. There were no reported injuries, fatalities or ignition. Four customers gas service was impacted. Cng tanks were provided to the impacted customers. The station rebuild was completed on 12/20/2017. Police & fire department was reported on-site. No media was reported on-site. This incident was reported to the DOT & cpuc due to the unintentional release of gas and estimated damage costs exceeding $50,000. An update on the gas flow stop time & volume was provided to the DOT (1194060) on 10/23/17. Please note for the phmsa7100 report that the incident is specific to the vehicle impact incident to the district reg station. For part e, the maop of the district reg station is 720 and operating pressure is 700 psig. The maop of the distribution system downstream of the district reg station is 60 psig and operating pressure is 54 psig. The distribution system downstream of the district reg station exceeded 110% maop.
| Occurred At | 2017-10-21 16:31:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-11-15 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170107.0 |
| Supplemental Number | 30738.0 |
| 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 | 2017-10-21 16:31:00 |
| Location Street Address | Kasson Rd And Durham Ferry Rd |
| Location City Name | Tracy |
| Location County Name | San Joaquin |
| Location State Abbreviation | CA |
| Location Postal Code | 95304 |
| Location Latitude | 37.6672 Google Maps OpenStreetMap |
| Location Longitude | -121.2787 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-10-21 20:48:00 |
| Nrc Rpt Num | 1193949 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 357.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 2.0 |
| Incident Identified Datetime | 2017-10-21 16:31:00 |
| On Site Datetime | 2017-10-21 17:06:00 |
| Federal | No |
| Location Type | Utility Right-Of-Way / Easement |
| Incident Area Type | Aboveground |
| Incident Area Subtype | Typical Aboveground Facility Piping Or Appurtenance (E.g. Value Or Regulator Station, Outdoor Meter Set) |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | District Regulator/metering Station |
| Installation Year | 1999.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Other |
| Release Type Details | Vehicle Impact To Reg Station |
| Class Location Type | Class 1 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 1218000.0 |
| Est Cost Emergency | 177000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 1000.0 |
| Prpty | 1396000.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 1.0 |
| Residences Affected | 3.0 |
| Accident Psig | 700.0 |
| Normal Psig | 54.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Exceeded The Applicable Allowance In 192.201 |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Emergency Responder |
| Investigation Status | No, the facility was not monitored by a controller(s) at the time of the incident |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Other Outside Force Damage |
| Cause Details | Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation |
| Outside Force Type | Damage By Car, Truck, Or Other Motorized Vehicle/equipment Not Engaged In Excavation |
| Vehicle Subtype | Third Party |
| Preparer Name | S****** R**** |
| Preparer Title | Gas Engineer |
| Preparer Email | S***@p**.com |
| Preparer Telephone | 925-413-7311 |
| Authorizer Name | S**** R******* |
| Authorizer Title | Manager Regulatory Compliance |
| Authorizer Telephone | 925-328-5776 |
| Authorizer Email | G***@p**.com |
| Narrative | On october 21, 2017 at approximately 1631 hours, pg&e was notified of a vehicle impact near the intersection of kasson rd and durham ferry rd, in the city of tracy. The vehicle drove through the fencing & bollards and struck district reg station tyhp-75, specifically the sensing lines, resulting in an unintentional release of gas and subsequent overpressure of the distribution system downstream of the reg station. The station is fed off line 108 near mile point (mp) 5.70. Pg&e gsr arrived on-site at 1706 hours. Pg&e m&c arrived on-site and stopped the flow of gas by closing the station valves by 1755 hours. The overpressurization of the 6-inch plastic distribution main downstream of the reg station resulted in a fusion failure near 560 e durham ferry rd. The fusion failure was first reported at 1948 hours. Approximately 9,500 ft of 6-inch plastic main and 4 services were impacted. The services that were impacted are 560 e durham ferry rd, 120 e durham ferry rd, 272 w durham ferry rd, and 492 w durham ferry rd. There were no reported injuries, fatalities or ignition. Four customers gas service was impacted. Cng tanks were provided to the impacted customers. The station rebuild was completed on 12/20/2017. Police & fire department was reported on-site. No media was reported on-site. This incident was reported to the DOT & cpuc due to the unintentional release of gas and estimated damage costs exceeding $50,000. An update on the gas flow stop time & volume was provided to the DOT (1194060) on 10/23/17. Please note for the phmsa7100 report that the incident is specific to the vehicle impact incident to the district reg station. For part e, the maop of the district reg station is 720 and operating pressure is 700 psig. The maop of the distribution system downstream of the district reg station is 60 psig and operating pressure is 54 psig. The distribution system downstream of the district reg station exceeded 110% maop. |
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