Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2023-11-30 — MN
Operator
Centerpoint Energy Resources Corp., Dba Centerpoint Energy Minnesota Gas
Cause
Locating Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$969
Incident datetime
2023-11-30 00:00 UTC
Report number
Location
MN, ANOKA
Narrative
Shafer contracting co., inc. Damaged an unmarked 6" plastic class 6 (50-55psig) gas main with a backhoe during road reconstruction while working under gsoc ticket #232891215. The excavator was working on a road project for mndot with a project start of excavation on 04/03/23. During this time there were multiple update tickets and field meets with the line locator(s) and the excavator(s). On the morning of the damage during a site meet with the excavator and the line locator, the line locator was alleged to have cleared the work area in the street where the main was contacted, telling the excavator that the live main was behind the curb (south of the curb) where yellow hard marks denoted the presence of gas facilities. As a result, the locator failed to mark the live gas main, and it was subsequently damaged with mechanized equipment. The contract locate vendor was unable to provide sufficient documentation of the site meeting that would counter the allegations of the excavator. Note, at the time of the damage there was no evidence of minimum reportable criteria for a mnops or fedops report. It wasn't until a field meeting with mndot (julie) on 10/24/23 that centerpoint energy's damage prevention coordinators were made aware of the injury that occurred on the day of the damage.
Detailed record list
Report Received Date
2023-11-30 00:00:00
Iyear
2023.0
Report Number
20230070.0
Supplemental Number
38870.0
Report Type
Original Final
Operator Id
12350
Name
Centerpoint Energy Resources Corp., Dba Centerpoint Energy Minnesota Gas
Operator Street Address
1111 Louisiana St
Operator City Name
Houston
Operator State Abbreviation
TX
Operator Postal Code
77002.0
Time Zone
Central
Daylight Savings Ind
Yes
Location Street Address
800 West Main Street
Location City Name
Anoka
Location County Name
Anoka
Location State Abbreviation
MN
Location Postal Code
55303.0
Location Latitude
45.2085
Location Longitude
-93.40792
Flow Cont Squeeze Off Ind
Yes
Nrc Rpt Num
1383136.0
Additional Nrc Report Numbers
1383193.0
Commodity Released Type
Natural Gas
Unintentional Release
576.0
Intentional Release
0.0
Fatality Ind
No
Fatal
0
Injury Ind
Yes
Num Emp Injuries
0
Num Contr Injuries
0
Num Er Injuries
0
Num Worker Injuries
1
Num Gp Injuries
0
Injure
1
Ignite Ind
No
Num Pub Evacuated
8.0
Federal
No
Location Type
Public Property
Incident Area Type
Underground
Incident Area Subtype
Under Pavement
Depth Of Cover
48.0
Other Underground Facilities
No
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Main
Installation Year
2021.0
Manufactured Year
2021.0
Pipe Diameter
6.0
Pipe Specification
Pe2708,sdr11.5
Pipe Manufacturer
Performance Pipe
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Plastic Sdr
11.5
Material Pe Pipe Code
2708
Release Type
Mechanical Puncture
Puncture Axial
4.0
Puncture Circum
1.0
Class Location Type
Class 3 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
969.0
Est Cost Emergency
2350.0
Est Cost Other
0.0
Gas Cost In Mcf
4.2717
Est Cost Unintentional Release
2460.0
Est Cost Intentional Release
0.0
Prpty
5779.0
Commercial Affected
1.0
Industrial Affected
0.0
Residences Affected
0.0
Num Persons Hosp Not Ovnght
0.0
Num Injured Treated By Emt
0.0
Num Resident Building Affctd
0.0
Num Business Building Affctd
1.0
Accident Psig
50.0
Normal Psig
50.0
Mop Psig
66.0
Mop Cfr Section
192.619(A)(2)
Maop Established Date
2021-11-05 00:00:00
Accident Pressure
Pressure Did Not Exceed Maop
Gas Odorized System Type
Injection Pump
Gas Odorized Lvl Not Msrd Ind
Yes
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
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
City Street
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
Yes
One Call Ticket Num
232842550.0
Locator Type
Contract Locator
Visible Marks
Yes
Service Interruption
Yes
Service Interruption Hours
2.0
Root Cause Category
Locating Issue
Root Cause Type
Facility Not Marked Due To Locator Error
Preparer Name
D*** H******
Preparer Title
Pipeline Safety And Compliance Manager
Preparer Email
D***********@c****************.com
Preparer Telephone
612.321.5366
Preparer Fax
612.321.0000
Local Contact Name
D*** H******
Local Contact Email
D***********@c****************.com
Local Contact Telephone
612.321.5366
Authorizer Name
D*** H******
Authorizer Title
Pipeline Safety And Compliance Manager
Authorizer Telephone
612.321.5366
Authorizer Email
D***********@c****************.com
Narrative
Shafer contracting co., inc. Damaged an unmarked 6" plastic class 6 (50-55psig) gas main with a backhoe during road reconstruction while working under gsoc ticket #232891215. The excavator was working on a road project for mndot with a project start of excavation on 04/03/23. During this time there were multiple update tickets and field meets with the line locator(s) and the excavator(s). On the morning of the damage during a site meet with the excavator and the line locator, the line locator was alleged to have cleared the work area in the street where the main was contacted, telling the excavator that the live main was behind the curb (south of the curb) where yellow hard marks denoted the presence of gas facilities. As a result, the locator failed to mark the live gas main, and it was subsequently damaged with mechanized equipment. The contract locate vendor was unable to provide sufficient documentation of the site meeting that would counter the allegations of the excavator. Note, at the time of the damage there was no evidence of minimum reportable criteria for a mnops or fedops report. It wasn't until a field meeting with mndot (julie) on 10/24/23 that centerpoint energy's damage prevention coordinators were made aware of the injury that occurred on the day of the damage.
| Report Received Date | 2023-11-30 00:00:00 |
|---|---|
| Iyear | 2023.0 |
| Report Number | 20230070.0 |
| Supplemental Number | 38870.0 |
| Report Type | Original Final |
| Operator Id | 12350 PHMSA Enforcement |
| Name | Centerpoint Energy Resources Corp., Dba Centerpoint Energy Minnesota Gas |
| Operator Street Address | 1111 Louisiana St |
| Operator City Name | Houston |
| Operator State Abbreviation | TX |
| Operator Postal Code | 77002.0 |
| Time Zone | Central |
| Daylight Savings Ind | Yes |
| Location Street Address | 800 West Main Street |
| Location City Name | Anoka |
| Location County Name | Anoka |
| Location State Abbreviation | MN |
| Location Postal Code | 55303.0 |
| Location Latitude | 45.2085 Google Maps OpenStreetMap |
| Location Longitude | -93.40792 Google Maps OpenStreetMap |
| Flow Cont Squeeze Off Ind | Yes |
| Nrc Rpt Num | 1383136.0 NRC Report How to search |
| Additional Nrc Report Numbers | 1383193.0 |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 576.0 |
| Intentional Release | 0.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | Yes |
| Num Emp Injuries | 0 |
| Num Contr Injuries | 0 |
| Num Er Injuries | 0 |
| Num Worker Injuries | 1 |
| Num Gp Injuries | 0 |
| Injure | 1 |
| Ignite Ind | No |
| Num Pub Evacuated | 8.0 |
| Federal | No |
| Location Type | Public Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Pavement |
| Depth Of Cover | 48.0 |
| Other Underground Facilities | No |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Main |
| Installation Year | 2021.0 |
| Manufactured Year | 2021.0 |
| Pipe Diameter | 6.0 |
| Pipe Specification | Pe2708,sdr11.5 |
| Pipe Manufacturer | Performance Pipe |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Plastic Sdr | 11.5 |
| Material Pe Pipe Code | 2708 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 4.0 |
| Puncture Circum | 1.0 |
| Class Location Type | Class 3 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 969.0 |
| Est Cost Emergency | 2350.0 |
| Est Cost Other | 0.0 |
| Gas Cost In Mcf | 4.2717 |
| Est Cost Unintentional Release | 2460.0 |
| Est Cost Intentional Release | 0.0 |
| Prpty | 5779.0 |
| Commercial Affected | 1.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 0.0 |
| Num Persons Hosp Not Ovnght | 0.0 |
| Num Injured Treated By Emt | 0.0 |
| Num Resident Building Affctd | 0.0 |
| Num Business Building Affctd | 1.0 |
| Accident Psig | 50.0 |
| Normal Psig | 50.0 |
| Mop Psig | 66.0 |
| Mop Cfr Section | 192.619(A)(2) View CFR 49 §192 |
| Maop Established Date | 2021-11-05 00:00:00 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Gas Odorized System Type | Injection Pump |
| Gas Odorized Lvl Not Msrd Ind | Yes |
| 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 | 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 | City Street |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | Yes |
| One Call Ticket Num | 232842550.0 |
| Locator Type | Contract Locator |
| Visible Marks | Yes |
| Service Interruption | Yes |
| Service Interruption Hours | 2.0 |
| Root Cause Category | Locating Issue |
| Root Cause Type | Facility Not Marked Due To Locator Error |
| Preparer Name | D*** H****** |
| Preparer Title | Pipeline Safety And Compliance Manager |
| Preparer Email | D***********@c****************.com |
| Preparer Telephone | 612.321.5366 |
| Preparer Fax | 612.321.0000 |
| Local Contact Name | D*** H****** |
| Local Contact Email | D***********@c****************.com |
| Local Contact Telephone | 612.321.5366 |
| Authorizer Name | D*** H****** |
| Authorizer Title | Pipeline Safety And Compliance Manager |
| Authorizer Telephone | 612.321.5366 |
| Authorizer Email | D***********@c****************.com |
| Narrative | Shafer contracting co., inc. Damaged an unmarked 6" plastic class 6 (50-55psig) gas main with a backhoe during road reconstruction while working under gsoc ticket #232891215. The excavator was working on a road project for mndot with a project start of excavation on 04/03/23. During this time there were multiple update tickets and field meets with the line locator(s) and the excavator(s). On the morning of the damage during a site meet with the excavator and the line locator, the line locator was alleged to have cleared the work area in the street where the main was contacted, telling the excavator that the live main was behind the curb (south of the curb) where yellow hard marks denoted the presence of gas facilities. As a result, the locator failed to mark the live gas main, and it was subsequently damaged with mechanized equipment. The contract locate vendor was unable to provide sufficient documentation of the site meeting that would counter the allegations of the excavator. Note, at the time of the damage there was no evidence of minimum reportable criteria for a mnops or fedops report. It wasn't until a field meeting with mndot (julie) on 10/24/23 that centerpoint energy's damage prevention coordinators were made aware of the injury that occurred on the day of the damage. |
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