Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2014-02-18 — CA
Operator
Southern California Gas Co
Cause
Other Outside Force Damage
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$1,240,000
Incident datetime
2014-02-18 21:48
Report number
Location
CA, SAN BERNARDINO
Narrative
On february 18, 2014 socalgas was notified of a gas leak at 9506 central ave in montclair. Monte vista water district indicated they were working on a water leak on their main in the intersection of central ave and palo verde and detected gas while excavating. Gas crews responded and confirmed leakage and that the water had entered the gas main. The water crews isolated the water main at the incursion point and socalgas excavated and repaired the gas leak with a clamp. While the gas leak was being brought under control, socalgas began investigating the area to determine the extent of the water incursion. Numerous locations were identified due to low elevation and ends of the distribution system as water extraction points. Over the course of the next five days, approximately 6,100 gallons of water was extracted from the gas lines and 1,751 impacted meters were replaced. As of 22:00 on 2-23-14, all impacted customers had either been restored or, if contact could not be made because of vacant residences, memos were placed on the accounts and literature left at the residence on how to contact socalgas for restoration of gas service. Investigation revealed that the water main, located perpendicular to and directly above the gas main had a corrosion leak on the bottom of the pipe. That water leak, over time, bored a hole into the top of the gas main. The water pressure was approximately 100 psig and the gas was operating at 45 psig which allowed the water to enter the gas main. The gas main was repaired with a clamp, the water main was replaced at the crossing. This incident was reported to PHMSA due to the anticipated costs of the incident would exceed $50,000. This incident was also reported to the cpuc.
Detailed record list
Occurred At
2014-02-18 21:48:00
Year
2014
Report Received Date
2014-03-18 00:00:00
Iyear
2014.0
Report Number
20140023.0
Supplemental Number
15822.0
Report Type
Original Final
Operator Id
18484
Name
Southern California Gas Co
Operator Street Address
555 West Fifth Street
Operator City Name
Los Angeles
Operator State Abbreviation
CA
Operator Postal Code
90013
Local Datetime
2014-02-18 21:48:00
Location Street Address
9506 Central Ave
Location City Name
Montclair
Location County Name
San Bernardino
Location State Abbreviation
CA
Location Postal Code
91736
Location Latitude
34.08131
Location Longitude
-117.68963
Nrc Rpt Datetime
2014-02-19 06:20:00
Nrc Rpt Num
1074442
Commodity Released Type
Natural Gas
Unintentional Release
548.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2014-02-18 21:48:00
On Site Datetime
2014-02-18 22:10:00
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
45.0
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Uncased
Pipe Facility Type
Privately Owned
System Part Involved
Main
Installation Year
1959.0
Pipe Diameter
8.625
Pipe Specification
Unknown
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Mechanical Puncture
Puncture Axial
1.0
Puncture Circum
1.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
1240000.0
Est Cost Emergency
2000.0
Est Cost Other
0.0
Est Cost Unintentional Release
3288.0
Prpty
1245288.0
Commercial Affected
63.0
Industrial Affected
0.0
Residences Affected
1688.0
Accident Psig
45.0
Normal Psig
45.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
Other Outside Force Damage
Outside Force Type
Other Outside Force Damage
Osf Other Details
High Pressure Water Bored Hole Into 8" Steel Natrual Gas Main.
Preparer Name
T*** A* B****
Preparer Title
Pipeline Safety And Compliance Advisor
Preparer Email
T*****@s**************.com
Preparer Telephone
909-376-7208
Preparer Fax
909-885-6270
Authorizer Name
T*** A* B****
Authorizer Title
Pipeline Safety And Compliance Advisor
Authorizer Telephone
909-376-7208
Authorizer Email
T*****@s**************.com
Narrative
On february 18, 2014 socalgas was notified of a gas leak at 9506 central ave in montclair. Monte vista water district indicated they were working on a water leak on their main in the intersection of central ave and palo verde and detected gas while excavating. Gas crews responded and confirmed leakage and that the water had entered the gas main. The water crews isolated the water main at the incursion point and socalgas excavated and repaired the gas leak with a clamp. While the gas leak was being brought under control, socalgas began investigating the area to determine the extent of the water incursion. Numerous locations were identified due to low elevation and ends of the distribution system as water extraction points. Over the course of the next five days, approximately 6,100 gallons of water was extracted from the gas lines and 1,751 impacted meters were replaced. As of 22:00 on 2-23-14, all impacted customers had either been restored or, if contact could not be made because of vacant residences, memos were placed on the accounts and literature left at the residence on how to contact socalgas for restoration of gas service. Investigation revealed that the water main, located perpendicular to and directly above the gas main had a corrosion leak on the bottom of the pipe. That water leak, over time, bored a hole into the top of the gas main. The water pressure was approximately 100 psig and the gas was operating at 45 psig which allowed the water to enter the gas main. The gas main was repaired with a clamp, the water main was replaced at the crossing. This incident was reported to PHMSA due to the anticipated costs of the incident would exceed $50,000. This incident was also reported to the cpuc.
| Occurred At | 2014-02-18 21:48:00 |
|---|---|
| Year | 2014 |
| Report Received Date | 2014-03-18 00:00:00 |
| Iyear | 2014.0 |
| Report Number | 20140023.0 |
| Supplemental Number | 15822.0 |
| Report Type | Original Final |
| Operator Id | 18484 PHMSA Enforcement |
| Name | Southern California Gas Co |
| Operator Street Address | 555 West Fifth Street |
| Operator City Name | Los Angeles |
| Operator State Abbreviation | CA |
| Operator Postal Code | 90013 |
| Local Datetime | 2014-02-18 21:48:00 |
| Location Street Address | 9506 Central Ave |
| Location City Name | Montclair |
| Location County Name | San Bernardino |
| Location State Abbreviation | CA |
| Location Postal Code | 91736 |
| Location Latitude | 34.08131 Google Maps OpenStreetMap |
| Location Longitude | -117.68963 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2014-02-19 06:20:00 |
| Nrc Rpt Num | 1074442 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 548.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2014-02-18 21:48:00 |
| On Site Datetime | 2014-02-18 22:10:00 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 45.0 |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Uncased |
| Pipe Facility Type | Privately Owned |
| System Part Involved | Main |
| Installation Year | 1959.0 |
| Pipe Diameter | 8.625 |
| Pipe Specification | Unknown |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.0 |
| Puncture Circum | 1.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 1240000.0 |
| Est Cost Emergency | 2000.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 3288.0 |
| Prpty | 1245288.0 |
| Commercial Affected | 63.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1688.0 |
| Accident Psig | 45.0 |
| Normal Psig | 45.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | Other Outside Force Damage |
| Outside Force Type | Other Outside Force Damage |
| Osf Other Details | High Pressure Water Bored Hole Into 8" Steel Natrual Gas Main. |
| Preparer Name | T*** A* B**** |
| Preparer Title | Pipeline Safety And Compliance Advisor |
| Preparer Email | T*****@s**************.com |
| Preparer Telephone | 909-376-7208 |
| Preparer Fax | 909-885-6270 |
| Authorizer Name | T*** A* B**** |
| Authorizer Title | Pipeline Safety And Compliance Advisor |
| Authorizer Telephone | 909-376-7208 |
| Authorizer Email | T*****@s**************.com |
| Narrative | On february 18, 2014 socalgas was notified of a gas leak at 9506 central ave in montclair. Monte vista water district indicated they were working on a water leak on their main in the intersection of central ave and palo verde and detected gas while excavating. Gas crews responded and confirmed leakage and that the water had entered the gas main. The water crews isolated the water main at the incursion point and socalgas excavated and repaired the gas leak with a clamp. While the gas leak was being brought under control, socalgas began investigating the area to determine the extent of the water incursion. Numerous locations were identified due to low elevation and ends of the distribution system as water extraction points. Over the course of the next five days, approximately 6,100 gallons of water was extracted from the gas lines and 1,751 impacted meters were replaced. As of 22:00 on 2-23-14, all impacted customers had either been restored or, if contact could not be made because of vacant residences, memos were placed on the accounts and literature left at the residence on how to contact socalgas for restoration of gas service. Investigation revealed that the water main, located perpendicular to and directly above the gas main had a corrosion leak on the bottom of the pipe. That water leak, over time, bored a hole into the top of the gas main. The water pressure was approximately 100 psig and the gas was operating at 45 psig which allowed the water to enter the gas main. The gas main was repaired with a clamp, the water main was replaced at the crossing. This incident was reported to PHMSA due to the anticipated costs of the incident would exceed $50,000. This incident was also reported to the cpuc. |
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