TSP Name:                                  Northern Natural Gas Company
TSP:                                       784158214
Notice ID:                                 095582
Notice Type:                               Planned Service Outage
Subject:                                   PLANNED SERVICE OUTAGES - SEPTEMBER 2025 THROUGH DECEMBER 2025
Location:                                  MARKET AND FIELD AREA
Critical:                                  N
Post Date/Time:                            09/17/2025 01:55 PM
Notice Status:                             Supersede
Prior Notice:                              095527
For Gas Day(s):                            09/17/2025 - 12/31/2025
Notice Effective Date/Time:                09/17/2025 01:55 PM
Notice End Date/Time:                      01/01/2026 08:59 AM
Required Response Indicator Description:   5-No response required

Notice Text: 

  
    


    
      Northern has scheduled the following
service outages that will affect operating capacity within the months of September
2025 through December 2025. Please review the 
      
        
          Planned Service Outage Summaryfor detailed information related to each
outage.
    
    


    
      
        
      
    
    


    
      A brief description of the
most recent change(s) to the Planned Service Outage Summary follows. 
    
    


    
      
        
      
    
    


    
      
        
          Market/Field Area Combined
        
      
    
    


    
      
        Allocation Group(s)/Point(s): 
      
      Waterloo East (Group 773), Earlville East (Group 487), and
Galena East (Group 463)
    
    


    
      
        Location: 
      
      Northern's pipelines and compressor stations between
Waterloo, Iowa, and Belleville, Wisconsin 
    
    


    
      
        Project Description:
      
       Pipeline maintenance
    
    


    
      
        Month:
      
       September 2025
    
    


    
      
        Direction of Flow:
      
       
    
    


    
      Delivery: Waterloo East (Group 773),
Earlville East (Group 487), and Galena East (Group 463)
    
    


    
      
        Capacity Impact: 
      
      Northern does not anticipate primary firm service will be
impacted for Waterloo East (Group 773) and Earlville East (Group 487). Primary
firm service will not be impacted for Galena East (Group 463).
    
    


    
      
        Revision:
      
       Capacity impacts for Waterloo East (Group 773),
Earlville East (Group 487), and Galena East (Group 463) have been removed for
September 2025. 
    
    


    
      
        
      
    
    


    
      Please see 
      
        
          Operationally
Available Capacityon Northern's website for current flow information and the 
      
        
          Field
Area Group Allocation Mapsand
      
        
          Market
Area Group Allocation Mapsfor a list of impacted points.
    
    


    
      
    
    


    
      If you have any questions, contact your customer service or
marketing representative.