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Iroquois Maintenance Schedule and Activities

In the event that Iroquois schedules a maintenance activity that may cause noise or odor to be detectable by residents within close proximity of the pipeline, notice of such will be provided here.

 

Scheduled Maintenance – Pipeline Internal Monitoring

Iroquois will be performing an internal inspection of its pipeline from Milford, CT to South Commack, NY. The project is expected to begin May 2 and be completed by May 25.  A computerized device, called a “smart pig” in the pipeline industry, will be inserted into the pipeline and will be pushed through the pipe at a controlled speed by the pressure of natural gas.

The activity will occur three times at each location, as a pre-run of a “sizing tool” will be performed to assure cleanliness and passage of the “smart tools”. The tools will be launched and received at the locations indicated below. The planned work will have no effect on local gas distribution service.

The process of insertion and extraction of these tools requires a depressurization of the launcher and/or receiver barrels. During this process a small amount of natural gas will be released to the atmosphere. It is possible during this phase of the project you may detect the smell of natural gas odorant and, perhaps, hear a noise associated with the depressurization of the launcher or receiver.

The associated venting for each activity will take approximately five to ten minutes while the total work for each activity may take several hours to complete. 

This procedure provides Iroquois with valuable information concerning the integrity of our pipeline, thereby continuing our commitment to our neighbors and customers to deliver natural gas safely and reliably.

The following schedule provides the locations and approximate times for the launching and receiving of the devices. 

In-Line Inspection Schedule* - Sizing Tool (completed)

Date

Time

Location

Activity

05/02/17

8:00 am

Milford, CT

Launch Tool

       

05/02/17

1:00-3:00 pm

South Commack, NY

Receive Tool

 

In-Line Inspection Schedule* - Inspection Tool - 1

Date

Time

Location

Activity

5/23/17

8:00 am

Milford, CT

Launch Tool

       

5/23/17

3:00-5:00 pm

South Commack, NY

Receive Tool

In-Line Inspection Schedule* - Inspection Tool - 2

Date

Time

Location

Activity

5/25/17

7:00 am

Milford, CT

Launch Tool

       

5/25/17

5:00-7:00 pm

South Commack, NY

Receive Tool

*Times/dates are subject to change. Updated information will be made available on this web page.

Current as of 05/17/2017

 


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