Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2023-10-26 — PA
Operator
Columbia Gas Of Pennsylvania
Cause
Excavation Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$128,591
Incident datetime
2023-10-26 00:00 UTC
Report number
Location
PA, ALLEGHENY
Narrative
At 00:15 on september 27, 2023, colosimo construction, a third-party subcontractor working for pennsylvania american water installing a water main struck and damaged a 10 inch high pressure steel main with a hydraulic hammer causing a gas loss of 4.9 million cubic feet of gas. Columbia's facility locators correctly marked the section of mainline that was damaged. Because of this damage, approximately 69 buildings were evacuated, and columbia had to shut off service to 19 customers for 45 hours while repairs were made.
Detailed record list
Report Received Date
2023-10-26 00:00:00
Iyear
2023.0
Report Number
20230062.0
Supplemental Number
38702.0
Report Type
Original Final
Operator Id
2600
Name
Columbia Gas Of Pennsylvania
Operator Street Address
121 Champion Way
Operator City Name
Canonsburg
Operator State Abbreviation
PA
Operator Postal Code
15317.0
Time Zone
Eastern
Daylight Savings Ind
Yes
Location Street Address
Washington Pike And Vanadium Road
Location City Name
Bridgeville
Location County Name
Allegheny
Location State Abbreviation
PA
Location Postal Code
15017.0
Location Latitude
40.37024
Location Longitude
-80.10081
Flow Cont Key Crit Ind
Yes
Flow Cont Main Valve Ind
Yes
Nrc Rpt Num
1380223.0
Additional Nrc Report Numbers
1380525.0
Commodity Released Type
Natural Gas
Unintentional Release
4970.0
Intentional Release
48.5
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Num Pub Evacuated
69.0
Communication State Fed Ind
No
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
36.0
Other Underground Facilities
No
Crossing
Yes
Road Crossing Ind
Yes
Road Type
Cased
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
1955.0
Pipe Diameter
10.0
Pipe Specification
Api 5l
Pipe Manufacturer
Unknown
Material Involved
Steel
Steel Seam Type
Seamless
Wt Steel
0.279
Release Type
Mechanical Puncture
Puncture Axial
1.5
Puncture Circum
5.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
128591.0
Est Cost Emergency
31608.0
Est Cost Other
0.0
Gas Cost In Mcf
4.88
Est Cost Unintentional Release
24254.0
Est Cost Intentional Release
237.0
Prpty
184690.0
Commercial Affected
2.0
Industrial Affected
0.0
Residences Affected
17.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
67.0
Num Business Building Affctd
2.0
Accident Psig
171.0
Normal Psig
175.0
Mop Psig
200.0
Mop Cfr Section
192.619(A)(1)
Maop Established Date
1982-06-03 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Odorized By Others
Gas Odorized Level
33
Scada In Place Ind
Yes
Scada Operating Ind
Yes
Scada Functional Ind
Yes
Scada Detection Ind
No
Scada Conf Ind
No
Accident Identifier
Notification From Third Party That Caused The Incident
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
Scada telemetry did not trigger alerts or alarms at the time of the incident. Gas control was notified by columbia's integration center at the time of the incident. The incident was clearly the result of excavator damage by a third-party contractor. No investigation was warranted.
Employee Drug Test Ind
No
Contractor Drug Test Ind
No
Cause
Excavation Damage
Cause Details
Excavation Damage By Third Party
Ex Party Type
Excavation Damage By Third Party
Prior Notification Ind
Yes
One Call System Ind
Yes
State Law Exempt Ind
No
Notify Cga Dirt
No
Public Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Water
One Call Notified Ind
Yes
One Call Ticket Num
2023553872.0
Locator Type
Facility Owner
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
45.0
Root Cause Category
Excavation Issue
Root Cause Type
Improper Backfilling Practices
Preparer Name
R****** B****
Preparer Title
Operations Compliance Manager
Preparer Email
R*****@n*******.com
Preparer Telephone
7243217155
Local Contact Name
R****** B****
Local Contact Email
R*****@n*******.com
Local Contact Telephone
7243217155
Authorizer Name
B**** M*****
Authorizer Title
Vice President Gas Operations
Authorizer Telephone
4129926929
Authorizer Email
B******@n*******.com
Narrative
At 00:15 on september 27, 2023, colosimo construction, a third-party subcontractor working for pennsylvania american water installing a water main struck and damaged a 10 inch high pressure steel main with a hydraulic hammer causing a gas loss of 4.9 million cubic feet of gas. Columbia's facility locators correctly marked the section of mainline that was damaged. Because of this damage, approximately 69 buildings were evacuated, and columbia had to shut off service to 19 customers for 45 hours while repairs were made.
| Report Received Date | 2023-10-26 00:00:00 |
|---|---|
| Iyear | 2023.0 |
| Report Number | 20230062.0 |
| Supplemental Number | 38702.0 |
| Report Type | Original Final |
| Operator Id | 2600 PHMSA Enforcement |
| Name | Columbia Gas Of Pennsylvania |
| Operator Street Address | 121 Champion Way |
| Operator City Name | Canonsburg |
| Operator State Abbreviation | PA |
| Operator Postal Code | 15317.0 |
| Time Zone | Eastern |
| Daylight Savings Ind | Yes |
| Location Street Address | Washington Pike And Vanadium Road |
| Location City Name | Bridgeville |
| Location County Name | Allegheny |
| Location State Abbreviation | PA |
| Location Postal Code | 15017.0 |
| Location Latitude | 40.37024 Google Maps OpenStreetMap |
| Location Longitude | -80.10081 Google Maps OpenStreetMap |
| Flow Cont Key Crit Ind | Yes |
| Flow Cont Main Valve Ind | Yes |
| Nrc Rpt Num | 1380223.0 NRC Report How to search |
| Additional Nrc Report Numbers | 1380525.0 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 4970.0 |
| Intentional Release | 48.5 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Num Pub Evacuated | 69.0 |
| Communication State Fed Ind | No |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 36.0 |
| Other Underground Facilities | No |
| Crossing | Yes |
| Road Crossing Ind | Yes |
| Road Type | Cased |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 1955.0 |
| Pipe Diameter | 10.0 |
| Pipe Specification | Api 5l |
| Pipe Manufacturer | Unknown |
| Material Involved | Steel |
| Steel Seam Type | Seamless |
| Wt Steel | 0.279 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 1.5 |
| Puncture Circum | 5.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 128591.0 |
| Est Cost Emergency | 31608.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 4.88 |
| Est Cost Unintentional Release | 24254.0 |
| Est Cost Intentional Release | 237.0 |
| Prpty | 184690.0 |
| Commercial Affected | 2.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 17.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 67.0 |
| Num Business Building Affctd | 2.0 |
| Accident Psig | 171.0 |
| Normal Psig | 175.0 |
| Mop Psig | 200.0 |
| Mop Cfr Section | 192.619(A)(1) View CFR 49 §192 |
| Maop Established Date | 1982-06-03 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Odorized By Others |
| Gas Odorized Level | 33 |
| Scada In Place Ind | Yes |
| Scada Operating Ind | Yes |
| Scada Functional Ind | Yes |
| Scada Detection Ind | No |
| Scada Conf Ind | No |
| Accident Identifier | Notification From Third Party That Caused The Incident |
| 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 | Scada telemetry did not trigger alerts or alarms at the time of the incident. Gas control was notified by columbia's integration center at the time of the incident. The incident was clearly the result of excavator damage by a third-party contractor. No investigation was warranted. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | No |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Third Party |
| Ex Party Type | Excavation Damage By Third Party |
| Prior Notification Ind | Yes |
| One Call System Ind | Yes |
| State Law Exempt Ind | No |
| Notify Cga Dirt | No |
| Public Row Ind | Yes |
| Public Subtype | State Highway |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Water |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 2023553872.0 |
| Locator Type | Facility Owner |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 45.0 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Improper Backfilling Practices |
| Preparer Name | R****** B**** |
| Preparer Title | Operations Compliance Manager |
| Preparer Email | R*****@n*******.com |
| Preparer Telephone | 7243217155 |
| Local Contact Name | R****** B**** |
| Local Contact Email | R*****@n*******.com |
| Local Contact Telephone | 7243217155 |
| Authorizer Name | B**** M***** |
| Authorizer Title | Vice President Gas Operations |
| Authorizer Telephone | 4129926929 |
| Authorizer Email | B******@n*******.com |
| Narrative | At 00:15 on september 27, 2023, colosimo construction, a third-party subcontractor working for pennsylvania american water installing a water main struck and damaged a 10 inch high pressure steel main with a hydraulic hammer causing a gas loss of 4.9 million cubic feet of gas. Columbia's facility locators correctly marked the section of mainline that was damaged. Because of this damage, approximately 69 buildings were evacuated, and columbia had to shut off service to 19 customers for 45 hours while repairs were made. |
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