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Mist Underground Natural Gas Storage Facility

The Mist Underground Natural Gas Storage Facility consists of underground natural gas storage reservoirs, compressor stations, gathering pipelines, operations and maintenance facilities, and a gas transmission pipeline. The permitted storage area is approximately 5,472 acres and has a permitted daily natural gas throughput of 635 million standard cubic feet.

Operating/Under Review
 
On March 15, 2024, the Department received preliminary Request for Amendment 13 (pRFA13). In pRFA13, the certificate holder requests Council approval to construct and operate pipelines at four undeveloped reservoirs; three new natural-gas fired compressors; two replacement natural-gas fired compressors; underground collector line; control and operations building; three temporary laydown areas and one permanent laydown/storage area.
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A Public Notice of Receipt of preliminary Request for Amendment 13 (pRFA13) was issued and made available for public review along with pRFA13 in March 2024.

Following review and completeness determination of pRFA13 by the Department, the certificate holder submitted a complete Request for Amendment 13 (RFA13) on August 9, 2024. The Department issued a Draft Proposed Order (DPO) and Public Notice requesting public comment on RFA13 and the DPO on August 15, 2024. 

The DPO recommends approval of RFA13 subject to existing, amended, and new site certificate conditions. The public comment period on RFA13 and the DPO is from August 15, 2024 through September 19, 2024, see details below and in the Public Notice of the DPO and RFA13 in the Project Amendment Timeline below. 

Public Comment Period: August 15 through September 19, 2024.​

In Person & Remote Public Hearing Information: A Public Hearing will be held on the complete RFA13 and the DPO on Thursday, September 19, 2024. Public comment will close at the close of the public hearing. Details to participate in person or remotely are provided below and included in the Public Notice.

Date: Thursday, September 19, 2024​​
Start Time: 5:30 PM (Pacific Time)
Location: Clatskanie People’s Utility District Community Room
495 E Columbia River Hwy 
Clatskanie, OR 97016

Webinar Number: 2662 392 2307
Webinar Password: EFSC (3372 from phones and video systems)
Teleconference: +1-650-479-3208 United States Toll
Teleconference Access code:  2662 392 2307

Online Comment Portal:
ODOE has an online comment portal​ for submitting public comments. The goal of the online comment portal is to provide members of the public with another convenient option to submit input on projects, and to provide additional resources that will enable meaningful participation in the EFSC process. 

To get started, choose the project “RFA13 and DPO for Mist Underground Natural Gas Storage Facility” from the drop-down menu. Only projects that have a comment period which is currently active will be listed. Choose the project, click “Next”, and follow the instructions on the screen. You will receive an email confirmation after submitting your comment.
Columbia County, near the community of Mist. PDF Map | Online Map
Applicant/Certificate holder: Northwest Natural Gas Company
Applicant/Certificate holder contact: Andy Bauer
ODOE contact: Kathleen Sloan
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Project Amendment(s)

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Display Name
  
Description
Display Date
  
Request for Amendment 13 (RFA13)
08/09/2024
08/15/2024
08/15/2024

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Project Timeline

Milestone
  
Additional Documents
Display Date
  
02/05/1981
06/19/1981
09/30/1981
02/12/1987
10/06/1987
10/29/1987
03/24/1988
10/02/1988
08/03/1990
09/21/1990
03/20/1997
07/21/1997
07/21/1997
08/04/1997
Request for Amendment 5

​Do​cument not available

02/27/1998
03/13/1998
03/17/1998
09/15/1998
03/30/1999
04/20/1999
08/29/2000
11/27/2000
12/12/2000
08/16/2001
11/14/2001
11/14/2001
09/12/2003
12/05/2003
12/08/2003
06/11/2007
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Exhibit Files Reference

  • Exhibit A: Applicant Information 
  • Exhibit B: Project Description
  • Exhibit C: Property Location and Maps
  • Exhibit D: Organizational Information
  • Exhibit E​: Permits Required
  • Exhibit F: Property Ownership 
  • Exhibit G: Materials Analysis
  • Exhibit H: Geology and Soil Stability 
  • Exhibit I: Soils
  • Exhibit J: Wetlands
  • Exhibit K: Land Use
  • Exhibit L: Protected Areas
  • Exhibit M: Financial Analysis
  • Exhibit N​: Non-generating Facility Information
  • Exhibit O: Water Requirements
  • Exhibit P: Fish Wildlife Habitat 
  • Exhibit Q: Threatened and Endangered Plants and Animals
  • Exhibit R: Scenic Aesthetic Values 
  • Exhibit S: Cultural Resources
  • Exhibit T: Recreational Facilities 
  • Exhibit U: Public Services
  • Exhibit V​: Waste Minimization 
  • Exhibit W: Site Restoration
  • Exhibit X: Noise 
  • Exhibit Y: Carbon Dioxide Emissions 
  • Exhibit Z: Cooling Towers  
  • Exhibit AA: EMFs – Electric and Magnetic Fields
  • Exhibit BB: Other Information
  • Exhibit CC: Additional Statutes Rules Ordinances
  • Exhibit DD​: Other Specific Standards