Incident details
Operator, cause, commodity and consequences with raw source fields.
GTG incident on 2013-04-17 — GA
Operator
Atlanta Gas Light Co
Cause
Excavation Issue
Commodity
Natural Gas
Program
GTG
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$44,000
Incident datetime
2013-04-17 11:04
Report number
Location
GA
Narrative
Operator's contractor was attempting to install approximately 200 feet of 24-inch steel pipe via conventional jack & bore where it appears the auger struck a rock about 30-feet into the bore and veered approximately 3-feet off the bore path striking the side of an existing 16-inch high pressure steel transmission pipeline causing a leak. The damage occurred on the vertical pipe where the 16-inch transmission pipeline made a depth change from 5-feet to 10-feet deep.
Detailed record list
Report Received Date
2013-05-15 00:00:00
Iyear
2013
Report Number
20130041
Supplemental Number
16395
Report Type
Supplemental Final
Operator Id
Name
Atlanta Gas Light Co
Operator Street Address
10 Peachtree Place Ne
Operator City Name
Atlanta
Operator State Abbreviation
GA
Operator Postal Code
30309
Local Datetime
2013-04-17 10:50:00
Location Latitude
33.800345
Location Longitude
-84.281001
Nrc Rpt Num
1044257
Nrc Rpt Datetime
2013-04-17 16:50:00
Commodity Released Type
Natural Gas
Unintentional Release
365
Intentional Release
41.6
Accompanying Liquid
0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Shutdown Due Accident Ind
Yes
Shutdown Datetime
2013-04-17 16:50:00
Restart Datetime
2013-04-19 01:12:00
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
31
Incident Identified Datetime
2013-04-17 11:04:00
On Site Datetime
2013-04-17 11:40:00
On Off Shore
Onshore
Onshore State Abbreviation
Ga
Onshore Postal Code
30033
Onshore City Name
Decatur
Onshore County Name
Dekalb
Designated Location
Milepost
Designated Name
Intersection
Pipe Fac Name
Memorial Dr To Scott Blvd Pipeline
Segment Name
Gis Object Id #316437
Federal
No
Location Type
Pipeline Right-Of-Way
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Crossing
No
Pipe Facility Type
Intrastate
System Part Involved
Onshore Pipeline, Including Valve Sites
Item Involved
Pipe
Pipe Type
Pipe Body
Pipe Diameter
16
Pipe Wall Thickness
0.25
Pipe Smys
42000
Pipe Specification
Api 5l X42
Pipe Seam Type
Longitudinal Erw - Unknown Frequency
Pipe Manufacturer
Unknown
Pipe Coating Type
Other
Pipe Coating Details
Millwrap
Installation Year
1971
Manufactured Year
1970
Material Involved
Carbon Steel
Release Type
Mechanical Puncture
Puncture Axial
0.1
Puncture Circum
6
Class Location Type
Class 3 Location
Could Be Hca
Yes
Determination Method
Method1
Pir Radius
191
Heat Damage Ind
No
Non Heat Damage Ind
No
Hca Fatalities Ind
No
Est Cost Oper Paid
0
Est Cost Unintentional Release
1522
Est Cost Intentional Release
174
Est Cost Prop Damage
44000
Est Cost Emergency
21000
Est Cost Other
0
Prpty
66696
Accident Psig
251
Mop Psig
300
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
1400
Internal Inspection Ind
No
Unsuitable Mainline Ind
Yes
Tight Mitered Ind
Yes
Other Restrictions Ind
Yes
Operation Complications Ind
No
Pipeline Function
Transmission Line Of Distribution 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
Contractor Working For The Operator
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
Contractor working for the company struck the 16-inch pipe with bore auger causing a small hole in pipe.
Employee Drug Test Ind
No
Contractor Drug Test Ind
Yes
Num Contractors Tested
1
Num Contractors Failed
0
Cause
Excavation Damage
Cause Details
Excavation Damage By Operator's Contractor (Second Party)
Ex Party Type
Excavation Damage By Operator's Contractor (Second Party)
Notify Cga Dirt
Yes
Public Row Ind
Yes
Public Subtype
State Highway
Excavator Type
Contractor
Excavator Equipment
Auger
Work Performed
Natural Gas
One Call Notified Ind
No
One Call Ticket Num
4053400013
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
39
Root Cause Category
Excavation Issue
Root Cause Type
Excavator Failed To Maintain Clearance After Verifying Marks
Preparer Name
R**** M*******
Preparer Title
Sr. Compliance Engineer
Preparer Email
R*******@a***********.com
Preparer Telephone
(404) 584-3733
Preparer Fax
(404) 584-4807
Authorizer Name
R****** R* L***
Authorizer Title
Managing Dir Compliance And Pipeline Risk Mgnt
Authorizer Telephone
(404) 584-3552
Authorizer Email
R****@a***********.com
Narrative
Operator's contractor was attempting to install approximately 200 feet of 24-inch steel pipe via conventional jack & bore where it appears the auger struck a rock about 30-feet into the bore and veered approximately 3-feet off the bore path striking the side of an existing 16-inch high pressure steel transmission pipeline causing a leak. The damage occurred on the vertical pipe where the 16-inch transmission pipeline made a depth change from 5-feet to 10-feet deep.
| Report Received Date | 2013-05-15 00:00:00 |
|---|---|
| Iyear | 2013 |
| Report Number | 20130041 |
| Supplemental Number | 16395 |
| Report Type | Supplemental Final |
| Operator Id | 792 PHMSA Enforcement |
| Name | Atlanta Gas Light Co |
| Operator Street Address | 10 Peachtree Place Ne |
| Operator City Name | Atlanta |
| Operator State Abbreviation | GA |
| Operator Postal Code | 30309 |
| Local Datetime | 2013-04-17 10:50:00 |
| Location Latitude | 33.800345 Google Maps OpenStreetMap |
| Location Longitude | -84.281001 Google Maps OpenStreetMap |
| Nrc Rpt Num | 1044257 NRC Report How to search |
| Nrc Rpt Datetime | 2013-04-17 16:50:00 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 365 |
| Intentional Release | 41.6 |
| Accompanying Liquid | 0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Shutdown Due Accident Ind | Yes |
| Shutdown Datetime | 2013-04-17 16:50:00 |
| Restart Datetime | 2013-04-19 01:12:00 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 31 |
| Incident Identified Datetime | 2013-04-17 11:04:00 |
| On Site Datetime | 2013-04-17 11:40:00 |
| On Off Shore | Onshore |
| Onshore State Abbreviation | Ga |
| Onshore Postal Code | 30033 |
| Onshore City Name | Decatur |
| Onshore County Name | Dekalb |
| Designated Location | Milepost |
| Designated Name | Intersection |
| Pipe Fac Name | Memorial Dr To Scott Blvd Pipeline |
| Segment Name | Gis Object Id #316437 |
| Federal | No |
| Location Type | Pipeline Right-Of-Way |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Crossing | No |
| Pipe Facility Type | Intrastate |
| System Part Involved | Onshore Pipeline, Including Valve Sites |
| Item Involved | Pipe |
| Pipe Type | Pipe Body |
| Pipe Diameter | 16 |
| Pipe Wall Thickness | 0.25 |
| Pipe Smys | 42000 |
| Pipe Specification | Api 5l X42 |
| Pipe Seam Type | Longitudinal Erw - Unknown Frequency |
| Pipe Manufacturer | Unknown |
| Pipe Coating Type | Other |
| Pipe Coating Details | Millwrap |
| Installation Year | 1971 |
| Manufactured Year | 1970 |
| Material Involved | Carbon Steel |
| Release Type | Mechanical Puncture |
| Puncture Axial | 0.1 |
| Puncture Circum | 6 |
| Class Location Type | Class 3 Location |
| Could Be Hca | Yes |
| Determination Method | Method1 |
| Pir Radius | 191 |
| Heat Damage Ind | No |
| Non Heat Damage Ind | No |
| Hca Fatalities Ind | No |
| Est Cost Oper Paid | 0 |
| Est Cost Unintentional Release | 1522 |
| Est Cost Intentional Release | 174 |
| Est Cost Prop Damage | 44000 |
| Est Cost Emergency | 21000 |
| Est Cost Other | 0 |
| Prpty | 66696 |
| Accident Psig | 251 |
| Mop Psig | 300 |
| 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 | 1400 |
| Internal Inspection Ind | No |
| Unsuitable Mainline Ind | Yes |
| Tight Mitered Ind | Yes |
| Other Restrictions Ind | Yes |
| Operation Complications Ind | No |
| Pipeline Function | Transmission Line Of Distribution 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 | Contractor Working For The Operator |
| 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 | Contractor working for the company struck the 16-inch pipe with bore auger causing a small hole in pipe. |
| Employee Drug Test Ind | No |
| Contractor Drug Test Ind | Yes |
| Num Contractors Tested | 1 |
| Num Contractors Failed | 0 |
| Cause | Excavation Damage |
| Cause Details | Excavation Damage By Operator's Contractor (Second Party) |
| Ex Party Type | Excavation Damage By Operator's Contractor (Second Party) |
| Notify Cga Dirt | Yes |
| Public Row Ind | Yes |
| Public Subtype | State Highway |
| Excavator Type | Contractor |
| Excavator Equipment | Auger |
| Work Performed | Natural Gas |
| One Call Notified Ind | No |
| One Call Ticket Num | 4053400013 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 39 |
| Root Cause Category | Excavation Issue |
| Root Cause Type | Excavator Failed To Maintain Clearance After Verifying Marks |
| Preparer Name | R**** M******* |
| Preparer Title | Sr. Compliance Engineer |
| Preparer Email | R*******@a***********.com |
| Preparer Telephone | (404) 584-3733 |
| Preparer Fax | (404) 584-4807 |
| Authorizer Name | R****** R* L*** |
| Authorizer Title | Managing Dir Compliance And Pipeline Risk Mgnt |
| Authorizer Telephone | (404) 584-3552 |
| Authorizer Email | R****@a***********.com |
| Narrative | Operator's contractor was attempting to install approximately 200 feet of 24-inch steel pipe via conventional jack & bore where it appears the auger struck a rock about 30-feet into the bore and veered approximately 3-feet off the bore path striking the side of an existing 16-inch high pressure steel transmission pipeline causing a leak. The damage occurred on the vertical pipe where the 16-inch transmission pipeline made a depth change from 5-feet to 10-feet deep. |
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