Incident details
Operator, cause, commodity and consequences with raw source fields.
GD incident on 2017-02-20 — OR
Operator
Northwest Natural Gas Co
Cause
Pipe, Weld, Or Joint Failure
Commodity
Natural Gas
Program
GD
Damage and Injuries
0 fatalities
0 injuries
Property damage (nominal)
$48,345
Incident datetime
2017-02-20 13:43
Report number
Location
OR, POLK
Narrative
At approximately 1:43pm on february 20, 2016 nw natural received an odor call to a residence at 23070 yamhill river rd. In willamina. There was a leak on a 2 inch steel main due to a cracked weld at the willamina-sheridan regulator station. Nwn first responder arrived on site at 2:06pm. Gas was controlled at 9:03am on february 21, 2017 by activating a bypass district regulator and insolated the leaking section of pipe. Six services were interrupted and relit by 5:49pm february 21, 2017. Repairs were completed by 5:50pm february 22, 2017 and the district regulator was reactivated. High flow through a district regulator caused icing and frost heave which resulted in a cracked fillet weld at a 2" lateral on the regulator outlet pipe. Nw natural is reporting this incident due to costs of response and repair exceeding $50,000. Nw natural cost data reflected this as of february 28, 2017.
Detailed record list
Occurred At
2017-02-20 13:43:00
Year
2017
Report Received Date
2017-03-23 00:00:00
Iyear
2017.0
Report Number
20170026.0
Supplemental Number
31351.0
Report Type
Supplemental Final
Operator Id
13840
Name
Northwest Natural Gas Co
Operator Street Address
250 Sw Taylor St
Operator City Name
Portland
Operator State Abbreviation
OR
Operator Postal Code
97204
Local Datetime
2017-02-20 13:43:00
Location Street Address
23070 Yamhill River Rd
Location City Name
Willamina
Location County Name
Polk
Location State Abbreviation
OR
Location Postal Code
97396-9714
Location Latitude
45.04997
Location Longitude
-123.5014
Nrc Rpt Datetime
2017-03-10 10:50:00
Nrc Rpt Num
1172923
Commodity Released Type
Natural Gas
Unintentional Release
272.0
Fatality Ind
No
Fatal
0
Injury Ind
No
Injure
0
Ignite Ind
No
Explode Ind
No
Num Pub Evacuated
6.0
Incident Identified Datetime
2017-02-20 13:43:00
On Site Datetime
2017-02-20 14:06:00
Federal
No
Location Type
Operator-Controlled Property
Incident Area Type
Underground
Incident Area Subtype
Under Soil
Depth Of Cover
8.0
Crossing
No
Pipe Facility Type
Investor Owned
System Part Involved
District Regulator/metering Station
Installation Year
1965.0
Material Involved
Steel
Steel Seam Type
Other
Steel Seam Type Details
Unknown
Release Type
Leak
Leak Type
Crack
Class Location Type
Class 2 Location
Est Cost Oper Paid
0.0
Est Cost Prop Damage
48345.0
Est Cost Emergency
22152.0
Est Cost Other
0.0
Est Cost Unintentional Release
903.0
Prpty
71400.0
Commercial Affected
0.0
Industrial Affected
0.0
Residences Affected
6.0
Accident Psig
50.0
Normal Psig
59.0
Mop Psig
125.0
Accident Pressure
Pressure Did Not Exceed Maop
Scada In Place Ind
No
Accident Identifier
Notification From Public
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
Pipe, Weld, Or Joint Failure
Cause Details
Fillet Weld
Pwjf Failure Type
Fillet Weld
Fillet Weld Subtype
Branch
Additional Crack Ind
Yes
Result Design Ind
Yes
Hydrotest Conducted Ind
No
Preparer Name
J*** G*******
Preparer Title
Sr. Manager Code Compliance
Preparer Email
J**@n********.com
Preparer Telephone
5032264211
Authorizer Name
J** H*********
Authorizer Title
Vp Engineering And Utility Operations
Authorizer Telephone
5032264211
Authorizer Email
J*************@n********.com
Narrative
At approximately 1:43pm on february 20, 2016 nw natural received an odor call to a residence at 23070 yamhill river rd. In willamina. There was a leak on a 2 inch steel main due to a cracked weld at the willamina-sheridan regulator station. Nwn first responder arrived on site at 2:06pm. Gas was controlled at 9:03am on february 21, 2017 by activating a bypass district regulator and insolated the leaking section of pipe. Six services were interrupted and relit by 5:49pm february 21, 2017. Repairs were completed by 5:50pm february 22, 2017 and the district regulator was reactivated. High flow through a district regulator caused icing and frost heave which resulted in a cracked fillet weld at a 2" lateral on the regulator outlet pipe. Nw natural is reporting this incident due to costs of response and repair exceeding $50,000. Nw natural cost data reflected this as of february 28, 2017.
| Occurred At | 2017-02-20 13:43:00 |
|---|---|
| Year | 2017 |
| Report Received Date | 2017-03-23 00:00:00 |
| Iyear | 2017.0 |
| Report Number | 20170026.0 |
| Supplemental Number | 31351.0 |
| Report Type | Supplemental Final |
| Operator Id | 13840 PHMSA Enforcement |
| Name | Northwest Natural Gas Co |
| Operator Street Address | 250 Sw Taylor St |
| Operator City Name | Portland |
| Operator State Abbreviation | OR |
| Operator Postal Code | 97204 |
| Local Datetime | 2017-02-20 13:43:00 |
| Location Street Address | 23070 Yamhill River Rd |
| Location City Name | Willamina |
| Location County Name | Polk |
| Location State Abbreviation | OR |
| Location Postal Code | 97396-9714 |
| Location Latitude | 45.04997 Google Maps OpenStreetMap |
| Location Longitude | -123.5014 Google Maps OpenStreetMap |
| Nrc Rpt Datetime | 2017-03-10 10:50:00 |
| Nrc Rpt Num | 1172923 NRC Report How to search |
| Commodity Released Type | Natural Gas |
| Unintentional Release | 272.0 |
| Fatality Ind | No |
| Fatal | 0 |
| Injury Ind | No |
| Injure | 0 |
| Ignite Ind | No |
| Explode Ind | No |
| Num Pub Evacuated | 6.0 |
| Incident Identified Datetime | 2017-02-20 13:43:00 |
| On Site Datetime | 2017-02-20 14:06:00 |
| Federal | No |
| Location Type | Operator-Controlled Property |
| Incident Area Type | Underground |
| Incident Area Subtype | Under Soil |
| Depth Of Cover | 8.0 |
| Crossing | No |
| Pipe Facility Type | Investor Owned |
| System Part Involved | District Regulator/metering Station |
| Installation Year | 1965.0 |
| Material Involved | Steel |
| Steel Seam Type | Other |
| Steel Seam Type Details | Unknown |
| Release Type | Leak |
| Leak Type | Crack |
| Class Location Type | Class 2 Location |
| Est Cost Oper Paid | 0.0 |
| Est Cost Prop Damage | 48345.0 |
| Est Cost Emergency | 22152.0 |
| Est Cost Other | 0.0 |
| Est Cost Unintentional Release | 903.0 |
| Prpty | 71400.0 |
| Commercial Affected | 0.0 |
| Industrial Affected | 0.0 |
| Residences Affected | 6.0 |
| Accident Psig | 50.0 |
| Normal Psig | 59.0 |
| Mop Psig | 125.0 |
| Accident Pressure | Pressure Did Not Exceed Maop |
| Scada In Place Ind | No |
| Accident Identifier | Notification From Public |
| 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 | Pipe, Weld, Or Joint Failure |
| Cause Details | Fillet Weld |
| Pwjf Failure Type | Fillet Weld |
| Fillet Weld Subtype | Branch |
| Additional Crack Ind | Yes |
| Result Design Ind | Yes |
| Hydrotest Conducted Ind | No |
| Preparer Name | J*** G******* |
| Preparer Title | Sr. Manager Code Compliance |
| Preparer Email | J**@n********.com |
| Preparer Telephone | 5032264211 |
| Authorizer Name | J** H********* |
| Authorizer Title | Vp Engineering And Utility Operations |
| Authorizer Telephone | 5032264211 |
| Authorizer Email | J*************@n********.com |
| Narrative | At approximately 1:43pm on february 20, 2016 nw natural received an odor call to a residence at 23070 yamhill river rd. In willamina. There was a leak on a 2 inch steel main due to a cracked weld at the willamina-sheridan regulator station. Nwn first responder arrived on site at 2:06pm. Gas was controlled at 9:03am on february 21, 2017 by activating a bypass district regulator and insolated the leaking section of pipe. Six services were interrupted and relit by 5:49pm february 21, 2017. Repairs were completed by 5:50pm february 22, 2017 and the district regulator was reactivated. High flow through a district regulator caused icing and frost heave which resulted in a cracked fillet weld at a 2" lateral on the regulator outlet pipe. Nw natural is reporting this incident due to costs of response and repair exceeding $50,000. Nw natural cost data reflected this as of february 28, 2017. |
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