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006951446
Algonquin Gas Transmission, LLC
Not a critical notice
02/07/2019
03:00:00 PM
11/15/2019
09:00:00 AM
81466
Initiate
Planned Service Outage
02/07/2019
03:00:00 PM


No response required


AGT 2019 Planned Outage Schedule


Notice Text:

2019 Outages

Below is a list of major outages known to date that will affect capacity or that impact major receipt/delivery areas on the Algonquin Gas Transmission (AGT) system for the 2019 outage season. Due to unforeseen delays or scheduling conflicts, the dates of the outages listed below are subject to change. In addition, this schedule is not a complete list of all outages that will occur this outage season, and we reserve the right to update this list to reflect additional major outages when the timing of such major outages can be reasonably forecasted. Any changes to the list below will be posted at the earliest practical date. Furthermore, when operationally feasible, AGT will coordinate with upstream and downstream point operators as necessary, to help minimize the operational impact of outages. Parties are urged to monitor these posting to access the most current information.

Mainline Outages:

30" Main Line L30B - Cromwell to Chaplin - DOT Pipeline Integrity Project:
Pipeline Outage Dates: March 16 - March 20, 2019
Wireline Tool Date: March 19, 2019
Potential Repair Dates: April 30, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting a pipeline outage on its 30" Main Line L30B from Cromwell compressor station to Chaplin compressor station. At this time AGT does not anticipate a reduction in seasonal main line capacity.

Depending on the results of the ILI Tool run and if further detailed investigations are required which result in a reduction of capacity; AGT will post on its EBB as soon as it is known.

30" Main Line L30A - Hanover TE to Hanover AGT - DOT Pipeline Integrity Project:
Pipeline Outage Dates: March 24 - March 27, 2019
Wireline Tool Date: March 26, 2019
Potential Repair Dates: May 3, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting a pipeline outage on its 30" Main Line L30A from Hanover TE to Hanover AGT. During this time, AGT will be limited to a net of approximately 300,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity.

Based on historical nominations AGT doesn't anticipate restrictions at this time. However, if flow patterns change, restrictions may be required for interruptible, secondary services and potentially primary firm services.

Depending on the results of the ILI Tool run and if further detailed investigations are required, AGT may be limited to a net of approximately 300,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity.

Cromwell Compressor Station Outage:
TBD Early to Mid-April - November 14, 2019

AGT will be conducting an outage at the Cromwell compressor station. During the listed time period, AGT currently forecasts the capacity through the Cromwell compressor station will be reduced from a seasonal capacity to an approximate range of 1,106,000 Dth/d and have a minimum throughput of 563,000 Dth/d. Please refer to the operational capacity matrix on the last page of this document for specific dates and associated capacities.

Based on historical nominations through Cromwell, AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

During this outage, AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.

26" Main Line - Southeast to Cromwell - DOT Pipeline Integrity Project:
Cleaning Tool Date: TBD April, 2019
Gauge Tool Date: TBD April, 2019
In-Line Tool Date: TBD April, 2019
Potential Repair Dates: TBD June, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 26" Main Line from the Southeast compressor station to its Cromwell compressor station.

During the cleaning and gauge tool runs, capacity through Southeast compressor station will be reduced from a seasonal capacity to approximately 1,329,000 Dth/day. Based on historical nominations through Southeast, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

During the in-line tool run, capacity through Southeast compressor station will be reduced from a seasonal capacity to approximately 1,227,000 Dth/day. Based on historical nominations through Southeast, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Depending on the results of the ILI Tool run and if further detailed investigations are required which result in a reduction of capacity; AGT will post on its EBB as soon as it is known.

24" Main Line - Cromwell to Burrillville - DOT Pipeline Integrity Project:
Cleaning Tool Date: TBD April, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 24" Main Line from the Cromwell Compressor Station to its Burrillville Compressor Station.

During the tool run, capacity through Cromwell Compressor Station will be reduced from a seasonal capacity to approximately 1,049,000 Dth/day. Based on historical nominations through Cromwell, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

24" Main Line - Burrillville to End Of Line (EOL) - DOT Pipeline Integrity Project:
Cleaning Tool Date: TBD April, 2019
Gauge Tool Date: TBD April, 2019
In-Line Tool Date: TBD April, 2019
Potential Repair Dates: TBD April, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 24" Main Line from the Burrillville compressor station to EOL.

During the cleaning tool run, capacity through Burrillville compressor station will be reduced from a seasonal capacity to approximately 753,000 Dth/day. Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

During the in-line tool run, capacity through Burrillville compressor station will be reduced from a seasonal capacity to approximately 619,000 Dth/day. Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Additionally, during the tool runs the following meter will be unavailable for flow:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required which result in a reduction of capacity; AGT will post on its EBB as soon as it is known.

Oxford Compressor Station Outage:
April 15, 2019

AGT will be conducting a station outage at the Oxford compressor station. During this time, AGT currently forecasts the capacity through the Oxford compressor station will be reduced from a seasonal capacity to approximately 1,109,000 Dth/day. Based on historical nominations through Oxford, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Southeast Compressor Station Outage:
April 16 - June 14, 2019

AGT will be conducting an outage at the Southeast compressor station. During the listed time period, AGT currently forecasts the capacity through the Southeast compressor station will reduce from a seasonal capacity to an approximate range of 1,737,000 Dth/d starting on April 16 and have a minimum throughput of 993,000 Dth/d in early to mid-June. Please refer to the operational capacity matrix on the last page of this document for specific dates and associated capacities.

Based on historical nominations through Southeast, AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

During this outage, AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.

30" Main Line L30B - Hudson River (downstream of Stony Point) to Cromwell - DOT Pipeline Integrity Project:
Cleaning Tool Date: April 17, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 30" Main Line L30B from the Hudson River (downstream of Stony Point compressor station) to its Cromwell compressor station.

During the tool runs, capacity through Stony Point compressor station will be reduced from a seasonal capacity to approximately 1,033,000 Dth/day. Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible, secondary services and primary firm service nominations.

Stony Point Compressor Station Outage:
April 24, 2019

AGT will be conducting a compressor station outage at the Stony Point compressor station. During this time, AGT currently forecasts the capacity through the Stony Point compressor station will be reduced from a seasonal capacity to approximately 1,325,000 Dth/day.

Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Burrillville & Chaplin Compressor Station Outages:
April 25 - April 28, 2019

AGT will be conducting compressor station outages at the Burrillville and Chaplin compressor stations. During this time, AGT currently forecasts the capacity through the Burrillville compressor station will be reduced from a seasonal capacity to approximately 530,000 Dth/day.

Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

30" Main Line L30B - Lambertville Meter Station (MR 00210) to Hudson River (downstream of Stony Point) - DOT Pipeline Integrity Project:
Cleaning Tool Date: May 1, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 30" Main Line L30B from the Lambertville Meter Station (MR 00210) to the Hudson River. During the cleaning tool run, capacity through Stony Point Compressor Station will be reduced from a seasonal capacity to approximately 1,431,000 Dth/day. Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible and secondary services.

Additionally, due to AGT's current operational flow patterns and to ensure the cleaning tool run is successfully completed, AGT will be limited to approximately 400,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity. Due to these current flow patterns AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Furthermore, AGT will be limited to approximately 931,000 Dth/ day for receipts sourced from Mahwah (MR 00201), Ramapo/ Millennium (MR00214) and Columbia Hanover (00240) for deliveries east through Stony Point compressor station. AGT anticipates restrictions to interruptible and secondary services.

Additionally, AGT will be limited to approximately 500,000 Dth/day receipts from TE Lambertville (MR 00210) and TE Hanover (MR 00211) for deliveries east through Stony Point compressor station. AGT anticipates restrictions to interruptible, secondary services and primary firm services.

If additional tool runs are required, AGT will post updates as soon as it is known.

26" Main Line - Lambertville Meter Station (MR 00210) to Valve 13A (upstream of Stony Point) - DOT Pipeline Integrity Project:
Cleaning Tool Date: May 3, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 26" Main Line from the Lambertville Meter Station (MR 00210) to the Valve 13A (upstream of Stony Point). During the cleaning tool run, capacity through Stony Point compressor station will be reduced from a seasonal capacity to approximately 1,343,000 Dth/day. Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible and secondary services.

Additionally, due to AGT's current operational flow patterns and to ensure the cleaning tool run is successfully completed, AGT will be limited to approximately 400,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity. Due to these current flow patterns AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Furthermore, AGT will be limited to approximately 843,000 Dth/ day for receipts sourced from Mahwah (MR 00201), Ramapo/ Millennium (MR00214) and Columbia Hanover (00240) for deliveries east through Stony Point compressor station. AGT anticipates restrictions to interruptible and secondary services.

Additionally, AGT will be limited to approximately 500,000 Dth/day receipts from TE Lambertville (MR 00210) and TE Hanover (MR 00211) for deliveries east through Stony Point compressor station. AGT anticipates restrictions to interruptible, secondary services and primary firm services.

If additional tool runs are required, AGT will post updates as soon as it is known.

Stony Point to Southeast - DOT Pipeline Integrity Project:
May 7 - May 9, 2019
May 13 - May 21, 2019
June 4 - June 5, 2019
June 6 - June 23, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting further detailed investigations between its Stony Point and Southeast compressor stations. As a result of these investigations, capacity through the Stony Point compressor station will be reduced from a seasonal capacity to as follows:

Reduced to Approximately:
May 7 - May 91,620,000
May 13 - May 211,260,000
June 4 - June 51,383,000
June 6 - June 231,022,000

Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

During this outage, AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.

Oxford Compressor Station Outage:
May 7 - June 4, 2019

AGT will be conducting an outage at the Oxford compressor station. During the listed time period, AGT currently forecasts the capacity through the Oxford compressor station will be reduced from a seasonal capacity to an approximate range of 1,291,000 Dth/d starting on May 7 and have a minimum throughput of 1,192,000 Dth/d in early June. Please refer to the operational capacity matrix on the last page of this document for specific dates and associated capacities.

Based on historical nominations through Southeast, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

During this outage, AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.


30" Main Line L30B - Hanover to Stony Point - DOT Pipeline Integrity Project:
May 12 - May 15, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting a pipeline outage on its 30" Main Line L30B between its Hanover and Stony Point compressor stations. During this time, AGT will be limited to a net of approximately 450,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity.

Based on historical nominations, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Burrillville Compressor Station Outage:
June 8 - September 12, 2019

AGT will be conducting an outage at the Burrillville compressor station. During the listed time period, AGT currently forecasts the capacity through the Burrillville compressor station will be reduced from a seasonal capacity to an approximate range of 933,000 Dth/d starting on June 8 and have a minimum throughput of 476,000 Dth/d in late July. Please refer to the operational capacity matrix on the last page of this document for specific dates and associated capacities.

Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

26" Main Line - Southeast to Oxford - DOT Pipeline Integrity Project:
June 24 - July 8, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting further detailed investigations on its 26" Main Line between its Southeast and Oxford compressor stations. As a result of these investigations, capacity through the Southeast compressor station will be reduced from a seasonal capacity to approximately 1,318,000 Dth/d.

Based on historical nominations through Southeast, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

Oxford Compressor Station Outage:
July 9 - July 12, 2019
July 15 - July 19, 2019

AGT will be conducting a compressor station outage at the Oxford compressor station. During this time, AGT currently forecasts the capacity through the Oxford compressor station will be reduced from a seasonal capacity to as follows:

Reduced to Approximately:
July 9 - July 121,303,000
July 15 - July 191,414,000

Based on historical nominations through Oxford, AGT anticipates restrictions to interruptible and secondary services.

Cromwell to Chaplin Outage - DOT Pipeline Integrity Project:
July 18
July 23 - July 29, 2019
July 30 - August 5, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting outages between its Cromwell and Chaplin compressor stations. During this time, AGT currently forecasts the capacity through the Cromwell compressor station will be reduced from a seasonal capacity to as follows:

Reduced to Approximately:
July 18669,000
July 23 - July 29559,000
July 30 - August 5865,000

Based on historical nominations through Cromwell, AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

During this outage, AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.

Hanover Compressor Station Outage:
September 10, 2018

AGT will be conducting a compressor station outage at the Hanover compressor station. During this time, AGT will be limited to a net of approximately 300,000 Dth/day for delivery to TE Lambertville (MR 00210) and TE Hanover (MR 00211), which includes the TE/ AGT Lease Capacity.

Based on historical nominations AGT anticipates restrictions to interruptible, secondary firm and potentially primary firm services.

AGT Fall Compressor Station Outages:

AGT will be conducting fall compressor station outages at the following stations. During this time, AGT currently forecasts the capacity through these stations will be reduced from a seasonal capacity to as follows:

DateStationReduced to Approximately:
Sept 10 - Sept 13Southeast1,353,000
September 19Oxford1,109,000
September 24Chaplin656,000
September 26Stony Point1,381,000
September 26Burrillville526,000
October 8Southeast1,353,000

Based on historical nominations, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

30" Main Line L30B - Burrillville to End Of Line (EOL) - DOT Pipeline Integrity Project:
Cleaning Tool Dates: September 13, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 30" Main Line L30B from the Burrillville compressor station to the EOL.

During the tool run, capacity through Burrillville compressor station will be reduced from a seasonal capacity to approximately 558,000 Dth/day.

Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

26" Main Line - Stony Point to Southeast - DOT Pipeline Integrity Project:
TBD, 2019 (approximately 14 days)

As part of its DOT Pipeline Integrity Program, AGT will be conducting further detailed investigations on its 26" Main Line between the Stony Point and Southeast compressor stations. As a result of these investigations, capacity through the Stony Point compressor station will be reduced from a seasonal capacity to approximately 1,134,000 Dth/d.

Based on historical nominations through Stony Point, AGT anticipates restrictions to interruptible, secondary services and potentially primary firm services.

30" Main Line L30B - Burrillville to End Of Line (EOL) - DOT Pipeline Integrity Project:
TBD September, 2019 (approximately 5 days)

As part of its DOT Pipeline Integrity Program, AGT will be conducting further detailed investigations on its 30" Main Line L30B between the Burrillville compressor station and the EOL. As a result of these investigations, capacity through the Burrillville compressor station will be reduced from a seasonal capacity to approximately 298,000 Dth/d.

Based on historical nominations through Burrillville, AGT anticipates restrictions to interruptible, secondary services and primary firm services.

Shippers looking for alternative flow path options can source gas from the following receipt points to avoid potential restrictions related to this outage:

MR 00206 - LINCOLN(MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00205 - MENDON
MR 00215 - SALEM ESSEX CO., MA (ESSEX, MA)

AGT will be suspending its No-Notice Service for deliveries downstream of the Burrillville compressor station for the duration of this outage.

During this outage, AGT requests that customers/point operators downstream of Burrillville be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.


Lateral Outages:

I System Line I-9-24" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: TBD, 2019
Gauge Tool Dates: March 25, 2019
In-Line Tool Dates: March 26, 2019
Potential Repair Dates: June 11, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 24" I-9 Line. During the tool runs, the following meters will be unavailable for flow:

MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00803 - FORE RIVER (NORFOLK,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may be unavailable for flow:

MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00803 - FORE RIVER (NORFOLK,MA)

Additionally, if an isolation is necessary, the following meters may have to source their supply from MR 00215 - SALEM ESSEX CO., MA (ESSEX,MA) and may have lower than desired pressures:

MR 00803 - FORE RIVER (NORFOLK,MA)
MR 00827 - NATIONAL GRID-WEYMOUTH (NORFOLK,MA)
MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00837 - SALEM HARBOR STATION

Furthermore, in this scenario, meter 00215 - SALEM ESSEX CO., MA (ESSEX,MA) will be unavailable for flow to all locations except for the meters previously stated.

Y System Line Y-1-12" - DOT Pipeline Integrity Project:
Pipeline Outage Dates: April 15 - April 19, 2019
Wireline Tool Date: April 18, 2019
Potential Repair Dates: June 10, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 12" Y-1 Line. During the pipeline outage, the following meter will be unavailable for flow:

MR 00814 - ANP BELLINGHAM ENERGY COMPANY (NORFOLK,MA)

Depending on the results of the Tool and if further detailed investigations are required, the following meter may experience lower than desired pressure or be unavailable for flow:

MR 00814 - ANP BELLINGHAM ENERGY COMPANY (NORFOLK,MA)

W System Line W-1-20" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 11 - April 12, 2019
In-Line Tool Dates: April 16, 2019
Potential Repair Dates: June 13, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 20" W-1 Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators to minimize operational impact:

MR 00072 - PORTLAND (MIDDLESEX,CT)
MR 00810 - NRG MIDDLETOWN, (MIDDLESEX,CT)
MR 00819 - MIDDLETOWN - YANKEE ENERGY SYSTEMS - CROMWELL (FAIRFIELD,CT
MR 00833 - KLEEN ENERGY
MR 00836 - GENCONN POWER PLANT

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may experience lower than desired pressures or be unavailable for flow:

MR 00072 - PORTLAND (MIDDLESEX,CT)
MR 00810 - NRG MIDDLETOWN, (MIDDLESEX,CT)
MR 00819 - MIDDLETOWN - YANKEE ENERGY SYSTEMS - CROMWELL (FAIRFIELD,CT
MR 00833 - KLEEN ENERGY
MR 00836 - GENCONN POWER PLANT

E System Line E-1-6" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 16, 2019
In-Line Tool Dates: April 18, 2019
Potential Repair Dates: July 8, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 6" E-1 Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators to minimize operational impact:

MR 00007 - WATERFORD (NEW LONDON,CT)
MR 00035 - SALEM PIKE (NORWICH, CT)
MR 00046 - YANTIC (HARTFORD,CT)
MR 00053 - NORWICHTOWN (NEW LONDON,CT)
MR 00059 - MONTVILLE (NEW LONDON,CT)
MR 00822 - PHELPS DODGE (NEW LONDON,CT)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may experience lower than desired pressures:

MR 00007 - WATERFORD (NEW LONDON,CT)
MR 00035 - SALEM PIKE (NORWICH, CT)
MR 00046 - YANTIC (HARTFORD,CT)
MR 00053 - NORWICHTOWN (NEW LONDON,CT)
MR 00059 - MONTVILLE (NEW LONDON,CT)
MR 00822 - PHELPS DODGE (NEW LONDON,CT)

Additionally, if an isolation is necessary, the following meter may be unavailable for flow:

MR 00007 - WATERFORD (NEW LONDON,CT)

E System Line E-1-16" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 19, 2019
In-Line Tool Dates: April 23, 2019
Potential Repair Dates: July 8, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 16" E-1 Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators on the E System to minimize operational impact.

Depending on the results of the ILI Tool run and if further detailed investigations are required which result in a reduction of capacity on the E System; AGT will post on its EBB as soon as it is known.

I System Line I-1-10/12" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 18, 2019
Gauge Tool Dates: April 23, 2019
In-Line Tool Dates: April 25, 2019
Potential Repair Dates: June 14, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 10/12" I-1 Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators to minimize operational impact:

MR 00021 - NATIONAL GRID- NORWOOD (NORFOLK,MA)
MR 00022 - WESTWOOD (NORFOLK, MA)
MR 00058 - CANTON (NORFOLK,MA)
MR 00061 - WOODLAND RD (NORFOLK,MA)
MR 00838 - NATIONAL GRID - WEST ROXBURY

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may experience lower than desired pressures or be unavailable for flow:

MR 00021 - NATIONAL GRID- NORWOOD (NORFOLK,MA)
MR 00022 - WESTWOOD (NORFOLK, MA)
MR 00058 - CANTON (NORFOLK,MA)
MR 00061 - WOODLAND RD (NORFOLK,MA)
MR 00838 - NATIONAL GRID - WEST ROXBURY

C System Line C-5-8" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 23, 2019
In-Line Tool Dates: April 25, 2019
Potential Repair Dates: July 11, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 8" C-5 Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators to minimize operational impact:

MR 00030 - GUILFORD (NEW HAVEN,CT)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure or be unavailable for flow:

MR 00030 - GUILFORD (NEW HAVEN,CT)

B System Line B-1L-12" - DOT Pipeline Integrity Project:
Pipeline Outage Dates: April 26 - May 1, 2019
Wireline Tool Dates: April 30, 2019
Potential Repair Dates: July 18, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 12" B-1L Line. During the tool runs AGT will coordinate with downstream point operators to minimize operational impact:

MR 00002 - WATERBURY (NEW HAVEN,CT)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure:

MR 00002 - WATERBURY (NEW HAVEN,CT)

T System Line T-1-6" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: April 29, 2019
Gauge Tool Dates: April 29, 2019
In-Line Tool Dates: April 30, 2019
Potential Repair Dates: July 18, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 6" T-1 Line. During the tool runs the following meters will be unavailable for flow:

MR 00025 - HOPEDALE (NORFOLK,MA)
MR 00801 - MILFORD POWER
MR 00809 - BALL FOSTER (NORFOLK,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure:

MR 00025 - HOPEDALE (NORFOLK,MA)
MR 00801 - MILFORD POWER
MR 00809 - BALL FOSTER (NORFOLK,MA)


T System Line T-1L-12" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: May 2, 2019
Gauge Tool Dates: May 2, 2019
In-Line Tool Dates: May 3, 2019
Potential Repair Dates: June 24, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 12" T-1L Line. During the tool runs the following meters will be unavailable for flow:

MR 00025 - HOPEDALE (NORFOLK,MA)
MR 00801 - MILFORD POWER
MR 00809 - BALL FOSTER (NORFOLK,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure:

MR 00025 - HOPEDALE (NORFOLK,MA)
MR 00801 - MILFORD POWER
MR 00809 - BALL FOSTER (NORFOLK,MA)

I System Line I-2L-16" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: May 7, 2019
In-Line Tool Dates: May 9, 2019
Potential Repair Dates: July 25, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 16" I-2L Line. During the tool runs, to the extent feasible, AGT will coordinate with downstream point operators to minimize operational impact:

MR 00024 - BROCKTON (PLYMOUTH,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure:

MR 00024 - BROCKTON (PLYMOUTH,MA)

G System Line G-24-18" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: May 14, 2019
In-Line Tool Dates: May 23, 2019
Potential Repair Dates: July 31, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 18" G-24 Line. During the tool runs, the following meters will be unavailable for flow:

MR 00806 - MIRANT CANAL, (BARNSTABLE,MA)
MR 00829 - NATIONAL GRID-SANDWICH (BARNSTABLE,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may experience lower than desired pressures or, if an isolation is necessary, may be unavailable for flow:

MR 00806 - MIRANT CANAL, (BARNSTABLE,MA)
MR 00829 - NATIONAL GRID-SANDWICH (BARNSTABLE,MA)

I System Line I-9-24" - DOT Pipeline Integrity Project:
Cleaning Tool Dates: TBD, 2019
In-Line Tool Dates: October 25, 2019
Potential Repair Dates: December 10, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 24" I-9 Line. AGT will coordinate with downstream point operators to minimize operational impact; however, during the tool runs, the following meters will be unavailable for flow:

MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00803 - FORE RIVER (NORFOLK,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meters may be unavailable for flow:

MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00803 - FORE RIVER (NORFOLK,MA)

Additionally, if an isolation is necessary, the following meters may have to source their supply from MR 00215 - SALEM ESSEX CO., MA (ESSEX,MA) and may have lower than desired pressures:

MR 00803 - FORE RIVER (NORFOLK,MA)
MR 00827 - NATIONAL GRID-WEYMOUTH (NORFOLK,MA)
MR 00834 - BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK,MA)
MR 00837 - SALEM HARBOR STATION

Furthermore, in this scenario, meter 00215 - SALEM ESSEX CO., MA (ESSEX,MA) will be unavailable for flow to all locations except for the meters previously stated.

N System Line N-1-6" - DOT Pipeline Integrity Project:
Pipeline Outage: TBD, 2019
Cleaning Tool Dates: TBD, 2019
In-Line Tool Dates: TBD, 2019
Potential Repair Dates: TBD, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting a series of outages on its 6" N-1 Line. During the pipeline outage, the following meter will be unavailable for flow:

MR 00062 - VERNON (TOLLAND,CT)

During the tool runs, to the extent feasible, AGT will coordinate with the downstream point operator to minimize operational impact:

MR 00062 - VERNON (TOLLAND,CT)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure or be unavailable for flow:

MR 00062 - VERNON (TOLLAND,CT)

J System 2019 Outages:

J System Line J-1 - DOT Pipeline Integrity Project:
Cleaning Tool Date: April 24, 2019

See Below for Valve Section Specific Dates

As part of its DOT Pipeline Integrity Program, AGT has determined that further detailed investigations are required on its J System Line 1. At this time, the number of gas days impacted is an estimate only; and will be updated once the work plan has been developed and work has commenced. Any changes to the list below will be posted at the earliest practical date. To the extent feasible, AGT will coordinate with downstream point operators to minimize operational/imbalance impacts.

The following meters could potentially be impacted by these detailed investigations:

MR 00027 - NATIONAL GRID- EVERETT (MIDDLESEX, MA)
MR 00028 - BROOKFORD ST (MIDDLESEX, MA)
MR 00032 - NATIONAL GRID-WALTHAM (MIDDLESEX, MA)
MR 00057 - NATIONAL GRID-WESTON (MIDDLESEX, MA)
MR 00074 - NATIONAL GRID-WELLESLEY (NORFOLK, MA)
MR 00080 - NATIONAL GRID-POLAROID (MIDDLESEX, MA)
MR 00089 - NATIONAL GRID-MEDFORD (MIDDLESEX, MA)
MR 00206 - LINCOLN (MIDDLESEX, MA)
MR 00271 - EVERETT INT. (MIDDLESEX, MA)
MR 00826 - MYSTIC (MIDDLESEX, MA)

The tentative schedule for valve section detailed investigations is as follows:

Valve Section 1:
Tentative Detailed Investigations Dates: August 9 - September 12, 2019
Tentative Isolation Dates: August 30 - September 12, 2019

During the isolation dates meters 00027, 00028, 00032, 00057, 00074, 00080, 00089 and 00826 are required to schedule any physical takes from meters 00206 and 00271.

Valve Section 2:
Tentative Detailed Investigations Dates: September 13 - September 19, 2019
Tentative Isolation Dates: None required at this time.

Valves Section 3:
Tentative Detailed Investigations Dates: July 10 - August 8, 2019
Tentative Isolation Dates: July 31 - August 8, 2019

During the isolation dates meters 00027, 00028, 00089 and 00826 are required to schedule any physical takes from meters 00206 and 00271. Additionally, meters 00032 and 00080 will be unavailable for flow during this time.

Valve Section 4 & 5:
Tentative Detailed Investigations Dates: May 23 - June 7, 2019
Tentative Isolation Dates: June 1 - June 7, 2019

During the isolation dates meters 00027, 00028, 00089 and 00826 are required to schedule any physical takes from meter 00271.

Valve Section 6:
Tentative Detailed Investigations Dates: May 3 - May 18, 2019
Tentative Isolation Dates: May 13 - May 18, 2019

During the isolation dates meters 00027, 00089 and 00826 are required to schedule any physical takes from meter 00271.

Valve Section 7:
Tentative Detailed Investigations Dates: April 2 - May 5, 2019
Tentative Isolation Dates: May 1 - May 5, 2019

During the isolation dates meters 00027 and 00826 are required to schedule any physical takes from meter 00271.

Valve Section 8:
Tentative Detailed Investigations Dates: June 24 - June 30, 2019
Tentative Isolation Dates: June 24 - June 30, 2019

During the isolation dates meter 00027 is required to schedule any physical takes from meter 00271.

J System Line J-1 - Section 1 (VS1 - 3) - DOT Pipeline Integrity Project:
Cleaning Tool Dates: May 16 - May 17, 2019
Gauge Tool: May 22, 2019
Potential Repair Dates: June 24, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its J-1 Line, section 1. During these tool runs, the following meters will be unavailable for flow:

MR 00206 - LINCOLN INT. (MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX,MA)

Depending on the results of the ILI Tool run and if further detailed investigations are required, the following meter may experience lower than desired pressure and/or be unavailable for flow:

MR 00027 - NATIONAL GRID- EVERETT (MIDDLESEX, MA)
MR 00028 - BROOKFORD ST (MIDDLESEX, MA)
MR 00032 - NATIONAL GRID-WALTHAM (MIDDLESEX, MA)
MR 00057 - NATIONAL GRID-WESTON (MIDDLESEX, MA)
MR 00074 - NATIONAL GRID-WELLESLEY (NORFOLK, MA)
MR 00080 - NATIONAL GRID-POLAROID (MIDDLESEX, MA)
MR 00089 - NATIONAL GRID-MEDFORD (MIDDLESEX, MA)
MR 00826 - MYSTIC (MIDDLESEX, MA)

Additionally, if an isolation of the line is required, the stated meters downstream of the isolated valve section will be required to source their supply from the following meters:

MR 00206 - LINCOLN INT. (MIDDLESEX,MA)
MR 00271 - EVERETT INT. (MIDDLESEX,MA)

J System Line J-10-12" - DOT Pipeline Integrity Project:
Pipeline Outage Dates: June 18 - June 21, 2019
Wireline Tool Date: June 20, 2019
Potential Repair Dates: August 21, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 12" J-10 Line. During the pipeline outage, the following meter will be unavailable for flow:

MR 00089 - NATIONAL GRID-MEDFORD (MIDDLESEX,MA)

Depending on the results of the Tool and if further detailed investigations are required, the following meter may experience lower than desired pressure or be unavailable for flow:

MR 00089 - NATIONAL GRID-MEDFORD (MIDDLESEX,MA)

J System Line J-4-12" - DOT Pipeline Integrity Project:
Pipeline Outage Dates: August 10 - August 14, 2019

As part of its DOT Pipeline Integrity Program, AGT will be conducting pigging operations on its 12" J-4 Line. During the pipeline outage, the following meter will be unavailable for flow:

MR 00028 - BROOKFORD ST (MIDDLESEX,MA)


Algonquin DOT Pipeline Integrity Project

AGT will be conducting, as part of its ongoing DOT Pipeline Integrity Project, in-line inspection tool runs at various locations throughout the Algonquin pipeline system. As a result of these in-line inspections, certain locations could be identified for an investigation which could lead to possible reduction of capacity. Should any of these investigations lead to a reduction of capacity, AGT will post on the bulletin board as soon as it is known. Listed below are the pipeline segments scheduled for inspection this year. Each segment will have a caliper tool run and an ILI tool run. Also listed below are the dates of a possible investigation as a result of the in-line inspection.

CaliperILIPossible
DateDateRepl Date

30" L30B CRM to CHPN/A03/19/1904/30/19
24" I System Line I-903/26/1903/26/1906/11/19
30" L30B Han TE to Han AGTN/A03/26/1905/03/19
26" ML Southeast to Cromwell04/10/1904/10/1906/20/19
12" Y System Line Y-1N/A04/18/1906/10/19
24" ML Burrillville to EOL04/16/1904/16/1906/10/19
20" W System Line W-104/16/1904/16/1906/13/19
6" E System Line E-104/18/1904/18/1907/08/19
16" E System Line E-104/23/1904/23/1907/08/19
10"/12" I System I-104/23/1904/23/1906/14/19
8" C System C-504/25/1904/25/1907/11/19
12" B System B-1L04/30/1904/30/1907/18/19
6" T System T-104/30/1904/30/1907/18/19
12" T System T-1L05/03/1905/03/1906/24/19
16" I System I-2L05/09/1905/09/1907/25/19
18" G System Line G-2405/16/1905/16/1907/31/19
24" J System Line J-105/22/19N/A06/24/19
12" J System J-10N/A06/06/1908/21/19
24" I System Line I-910/25/1910/25/1912/10/19
6" N System Line N-1TBDTBDTBD



Algonquin DOT Pipeline Integrity Project

As a result of prior DOT mandated investigations, the following locations have been identified as requiring additional evaluation which may require a reduction of capacity. Should any of these investigations lead to a reduction of capacity, AGT will post on the bulletin board as soon as it is known:

B System B-1 6"
Cromwell to Chaplin L30B 30"
Cromwell to Chaplin Main Line 24"
E System Line E-1L-10"/12"
G System Line G-8C
G System Line G12L 24"
N System N-1 6"
Oxford to Cromwell ML 24"
Southeast to Oxford ML 26"
Stony Point to Southeast ML 26"
Stony Point to Southeast L30B 30"
Q System Q-1 24"



AGT MAINLINE OPERATIONAL CAPACITY MATRIX
Below is an operational capacity matrix of anticipated AGT mainline capacities based on major outages know to date that will affect the mainline capacity on the AGT system for the 2019 outage season. Due to unforeseen delays or scheduling conflicts, the dates and capacities listed below are subject to change. In addition, this matrix may not be a complete list of all capacities based on major outages that will occur this outage season and we reserve the right to update this list to reflect additional capacity reductions based on major outages when the timing of such major outages can be reasonably forecasted. Any changes to the matrix below will be posted at the earliest practical date.


Stony PointSoutheastOxfordCromwellBurrillville
April 2 - April 14TBDTBDTBDTBDTBD
15-Apr1,711,0001,680,0001,109,000867,000793,000
16-Apr1,767,0001,737,0001,296,000915,000666,000
17-Apr1,033,0001,007,000743,000563,000524,000
18-Apr1,767,0001,737,0001,229,000914,000665,000
April 19 - April 211,767,0001,737,0001,434,000956,000708,000
April 22 - April 231,666,0001,637,0001,321,000956,000708,000
24-Apr1,325,0001,297,0001,039,0001,036,000909,000
25-Apr1,325,0001,397,0001,039,0001,078,000530,000
April 26 - April 281,666,0001,637,0001,321,000956,000530,000
April 29 - April 301,666,0001,637,0001,321,000956,000708,000
1-May1,431,0001,403,0001,267,000946,000699,000
2-May1,666,0001,637,0001,321,000956,000708,000
3-May1,343,0001,311,0001,185,000915,000668,000
May 4 - May 61,666,0001,637,0001,321,000956,000708,000
May 7 - May 111,620,0001,592,0001,291,0001,015,000769,000
12-May1,652,0001,624,0001,330,000901,000658,000
May 13 - May 211,260,0001,233,0001,224,0001,027,000901,000
22-May1,652,0001,624,0001,330,000901,000658,000
May 23 - May 261,620,0001,592,0001,291,0001,015,000769,000
May 27 - May 311,655,0001,627,0001,310,000946,000702,000
June 1 - June 31,620,0001,592,0001,291,0001,015,000769,000
June 4 - June 51,383,0001,354,0001,192,000859,000817,000
June 6 - June 121,022,000993,0001,079,000980,000933,000
June 13 - June 231,022,000993,0001,079,000980,000913,000
June 24 - July 81,347,0001,318,0001,079,000860,000794,000
July 9 - July 121,837,0001,805,0001,303,000956,000708,000
July 13 - July 141,837,0001,805,0001,463,000956,000708,000
July 15 - July 161,837,0001,805,0001,412,000956,000708,000
17-Jul1,837,0001,805,0001,414,0001,081,000832,000
18-Jul1,837,0001,805,0001,414,000669,000659,000
July 19 - July 221,837,0001,805,0001,414,0001,081,000832,000
July 23 - July 291,837,0001,805,0001,414,000636,000476,000
July 30 - August 51,837,0001,805,0001,471,000865,000700,000
August 6 - Sept 91,837,0001,805,0001,414,0001,081,000832,000
Sept 10 - Sept 121,375,0001,353,0001,055,000925,000882,000
13-Sep1,375,0001,353,0001,055,000925,000558,000
Sept 14 - Sept 161,837,0001,805,0001,463,000956,000708,000
Sept 17 - Sept 181,837,0001,805,0001,471,0001,106,000858,000
19-Sep1,711,0001,680,0001,109,000867,000793,000
20-Sep1,837,0001,805,0001,471,0001,106,000858,000
21-Sep1,837,0001,805,0001,296,0001,058,000847,000
Sept 22 - Sept 231,837,0001,805,0001,471,0001,106,000858,000
24-Sep1,837,0001,805,0001,502,0001,258,000656,000
25-Sep1,837,0001,805,0001,471,0001,106,000858,000
26-Sep1,381,0001,351,0001,445,0001,106,000526,000
Sept 27 - Sept 301,837,0001,805,0001,471,0001,106,000858,000
1-Oct1,837,0001,805,0001,463,000956,000708,000
Oct 2 - Oct 71,837,0001,805,0001,471,0001,106,000858,000
8-Oct1,375,0001,353,0001,055,0001,021,000974,000
Oct 9 - Nov 141,837,0001,805,0001,471,0001,106,000858,000




Download File: AGT 2019 Planned Outage Schedule.pdf


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