Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2015-06-04 — IA
Operator
Midamerican Energy Company
Cause
Notification Issue
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
1 injury
Property damage (nominal)
$813
Incident datetime
2015-06-04 10:36
Report number
Location
IA, POLK
Narrative
A third party contractor (c & m plumbing llc) installing a drain line from a garage to a pond damaged a 1/2 inch plastic natural gas service line (60 psig) with a mini-excavator. The blowing gas caught fire and one contractor employee was injured from fire with 2nd degree burns to the face and arms. Property damage was limited to the service line and contractor equipment. An ambulance responded to the site for the contractor and he was taken the hospital for medical treatment. The injured contractor, clint mahon, was admitted. The plastic service was squeezed off shortly after operator crews arrived and was restored that afternoon. Locates were not requested or performed prior to the initial excavation by c & m plumbing llc. The exact time the contractor hit the plastic service line is not known. The local time of the incident is shown on line 4 in part a as 10:35 which is when 911 was notified of the incident. At 10:36, midamerican energy company was notified of the damaged pipe. At 13:00, midamerican energy company determined the injured party was admitted to the hospital. Midamerican energy company then promptly notified the iowa utilities board and the national response center at 13:26.
Detailed record list
Occurred At
2015-06-04 10:36:00
Year
2015
Report Received Date
2015-07-01 00:00:00
Iyear
2015.0
Report Number
20150064.0
Supplemental Number
16210.0
Report Type
Supplemental Final
Operator Id
30750
Name
Midamerican Energy Company
Operator Street Address
666 Grand Avenue, Suite 500
Operator City Name
Des Moines
Operator State Abbreviation
IA
Operator Postal Code
50309-2580
Local Datetime
2015-06-04 10:35:00
Location Street Address
7538 Northeast 114th Avenue
Location City Name
Not Within A Municipality
Location County Name
Polk
Location State Abbreviation
IA
Location Postal Code
50035
Location Latitude
41.76875301
Location Longitude
-93.45639186
Nrc Rpt Datetime
2015-06-04 13:26:00
Nrc Rpt Num
1118659
Commodity Released Type
Natural Gas
Unintentional Release
1.37
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
Yes
Explode Ind
No
Num Pub Evacuated
0.0
Incident Identified Datetime
2015-06-04 10:36:00
On Site Datetime
2015-06-04 11:30:00
Federal
No
Location Type
Private Property
Incident Area Type
Underground
Incident Area Subtype
Exposed Due To Excavation
Depth Of Cover
24.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
Service
Installation Year
2015.0
Pipe Diameter
0.5
Pipe Specification
Astm D2513
Pipe Manufacturer
Driscoplex
Material Involved
Plastic
Plastic Type
Polyethylene (Pe)
Wt Plastic
0.09
Material Pe Pipe Code
2406
Release Type
Mechanical Puncture
Puncture Axial
28.0
Puncture Circum
0.5
Class Location Type
Class 2 Location
Est Cost Oper Paid
1000.0
Est Cost Prop Damage
813.0
Est Cost Emergency
652.0
Est Cost Other
975.0
Est Cost Other Details
Emergency Response Cost - Non Operator
Est Cost Unintentional Release
6.0
Prpty
3446.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
1.0
Accident Psig
60.0
Normal Psig
60.0
Mop Psig
60.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
Individual residential service failure would not have been detectable by the control room
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
No
Notify Cga Dirt
Yes
Private Row Ind
Yes
Private Subtype
Private Landowner
Excavator Type
Contractor
Excavator Equipment
Backhoe/trackhoe
Work Performed
Sewer (Sanitary/storm)
One Call Notified Ind
No
Service Interruption
Yes
Service Interruption Hours
4.0
Root Cause Category
Notification Issue
Root Cause Type
No Notification Made To The One-Call Center/811
Preparer Name
C********** R* P****
Preparer Title
Gas Standards Engineer
Preparer Email
C******@m**********.com
Preparer Telephone
712-277-7941
Preparer Fax
712-252-7369
Authorizer Name
A*** L* W*****
Authorizer Title
Vice President Gas Delivery
Authorizer Telephone
515-252-6945
Authorizer Email
A*******@m**********.com
Narrative
A third party contractor (c & m plumbing llc) installing a drain line from a garage to a pond damaged a 1/2 inch plastic natural gas service line (60 psig) with a mini-excavator. The blowing gas caught fire and one contractor employee was injured from fire with 2nd degree burns to the face and arms. Property damage was limited to the service line and contractor equipment. An ambulance responded to the site for the contractor and he was taken the hospital for medical treatment. The injured contractor, clint mahon, was admitted. The plastic service was squeezed off shortly after operator crews arrived and was restored that afternoon. Locates were not requested or performed prior to the initial excavation by c & m plumbing llc. The exact time the contractor hit the plastic service line is not known. The local time of the incident is shown on line 4 in part a as 10:35 which is when 911 was notified of the incident. At 10:36, midamerican energy company was notified of the damaged pipe. At 13:00, midamerican energy company determined the injured party was admitted to the hospital. Midamerican energy company then promptly notified the iowa utilities board and the national response center at 13:26.
| Occurred At | 2015-06-04 10:36:00 |
|---|---|
| Year | 2015 |
| Report Received Date | 2015-07-01 00:00:00 |
| Iyear | 2015.0 |
| Report Number | 20150064.0 |
| Supplemental Number | 16210.0 |
| Report Type | Supplemental Final |
| Operator Id | 30750 PHMSA Enforcement |
| Name | Midamerican Energy Company |
| Operator Street Address | 666 Grand Avenue, Suite 500 |
| Operator City Name | Des Moines |
| Operator State Abbreviation | IA |
| Operator Postal Code | 50309-2580 |
| Local Datetime | 2015-06-04 10:35:00 |
| Location Street Address | 7538 Northeast 114th Avenue |
| Location City Name | Not Within A Municipality |
| Location County Name | Polk |
| Location State Abbreviation | IA |
| Location Postal Code | 50035 |
| Location Latitude | 41.76875301 Google Maps OpenStreetMap |
| Location Longitude | -93.45639186 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2015-06-04 13:26:00 |
| Nrc Rpt Num | 1118659 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 1.37 |
| 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 | Yes |
| Explode Ind | No |
| Num Pub Evacuated | 0.0 |
| Incident Identified Datetime | 2015-06-04 10:36:00 |
| On Site Datetime | 2015-06-04 11:30:00 |
| Federal | No |
| Location Type | Private Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Exposed Due To Excavation |
| Depth Of Cover | 24.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | Service |
| Installation Year | 2015.0 |
| Pipe Diameter | 0.5 |
| Pipe Specification | Astm D2513 |
| Pipe Manufacturer | Driscoplex |
| Material Involved | Plastic |
| Plastic Type | Polyethylene (Pe) |
| Wt Plastic | 0.09 |
| Material Pe Pipe Code | 2406 |
| Release Type | Mechanical Puncture |
| Puncture Axial | 28.0 |
| Puncture Circum | 0.5 |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 1000.0 |
| Est Cost Prop Damage | 813.0 |
| Est Cost Emergency | 652.0 |
| Est Cost Other | 975.0 |
| Est Cost Other Details | Emergency Response Cost - Non Operator |
| Est Cost Unintentional Release | 6.0 |
| Prpty | 3446.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 1.0 |
| Accident Psig | 60.0 |
| Normal Psig | 60.0 |
| Mop Psig | 60.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 | Individual residential service failure would not have been detectable by the control room |
| 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 | No |
| Notify Cga Dirt | Yes |
| Private Row Ind | Yes |
| Private Subtype | Private Landowner |
| Excavator Type | Contractor |
| Excavator Equipment | Backhoe/trackhoe |
| Work Performed | Sewer (Sanitary/storm) |
| One Call Notified Ind | No |
| Service Interruption | Yes |
| Service Interruption Hours | 4.0 |
| Root Cause Category | Notification Issue |
| Root Cause Type | No Notification Made To The One-Call Center/811 |
| Preparer Name | C********** R* P**** |
| Preparer Title | Gas Standards Engineer |
| Preparer Email | C******@m**********.com |
| Preparer Telephone | 712-277-7941 |
| Preparer Fax | 712-252-7369 |
| Authorizer Name | A*** L* W***** |
| Authorizer Title | Vice President Gas Delivery |
| Authorizer Telephone | 515-252-6945 |
| Authorizer Email | A*******@m**********.com |
| Narrative | A third party contractor (c & m plumbing llc) installing a drain line from a garage to a pond damaged a 1/2 inch plastic natural gas service line (60 psig) with a mini-excavator. The blowing gas caught fire and one contractor employee was injured from fire with 2nd degree burns to the face and arms. Property damage was limited to the service line and contractor equipment. An ambulance responded to the site for the contractor and he was taken the hospital for medical treatment. The injured contractor, clint mahon, was admitted. The plastic service was squeezed off shortly after operator crews arrived and was restored that afternoon. Locates were not requested or performed prior to the initial excavation by c & m plumbing llc. The exact time the contractor hit the plastic service line is not known. The local time of the incident is shown on line 4 in part a as 10:35 which is when 911 was notified of the incident. At 10:36, midamerican energy company was notified of the damaged pipe. At 13:00, midamerican energy company determined the injured party was admitted to the hospital. Midamerican energy company then promptly notified the iowa utilities board and the national response center at 13:26. |
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