Algonquin Gas Transmission Notice 183225

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Critical Notice Description: Critical Notices

Notice Effective Date / Time: 09/21/2026 09:00:00 AM

Notice End Date / Time: 09/22/2026 09:00:00 AM

Notice Identifier: 183225

Notice Status Description: Initiate

Notice Type: Capacity Constraint

Posting Date / Time: 09/20/2026 02:55:49 PM

Prior Notice Identifier: None

Required Response Indicator Description: No response required

Response Date / Time: None

Subject: AGT Pipeline Conditions for 09/21/2026

Notice Text:

For Gas Day September 21, 2026, Algonquin Gas Transmission (AGT) has approved and scheduled nominations at each pipeline segment and meter station up to AGT's operational capacity. The following locations have been restricted due to requested nominations exceeding AGT's operational capacity:

Restricted Locations	Scheduled and Sealed	Priority % Restricted								Notes
Restricted Locations	Scheduled and Sealed	AO	IT	3B	3A	2C	2B	2A	1	Notes
Iroquois Deliveries		100%	100%	11%
Iroquois Receipts		100%	100%	45%
Hanover West		100%	100%	85%
Stony Point		100%	100%	100%	100%	100%	96%			Planned Outage
Cromwell		100%	100%	80%
Burrillville		100%	100%	49%
Weymouth		100%	100%	99%
G System		100%	100%	48%
C System	Yes
Mendon Receipts		100%	100%	100%	100%	92%
Lincoln Deliveries	Yes
Lincoln Receipts		100%	100%	67%
Centerville-Transco Receipts⁽¹⁾		100%	100%	15%
I-8 West to East	Yes
J System VS3		100%	100%	100%	100%	100%	100%	100%	100%	Isolation
J System VS3 - Backhauls		100%	100%	100%						Isolation


No-Notice Restrictions	Suspended for deliveries through J System VS3 due to line isolation.

OFO / Imbalance Notice
System Wide OFO	No DS - System Wide issued 9/15/26. 500 Dth / 5% Tolerance
Customer Specific OFO	---
Meter Specific OFO	---
Customer Specific Hourly OFO	---
Imbalances Warnings	---

FERC Order 698	Yes

Systemwide Notes:
⁽¹⁾ AGT has scheduled Transco Centerville receipts to the design meter capacity of 222,526 Dth/d.

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.

AGT's system is not designed to sustain delivery pressures above contract levels while making non-ratable/accelerated deliveries above scheduled quantities for more than 6 consecutive hours, to be followed by flows below scheduled quantity for the balance of any 24-hour period. If customers/point operators don't manage hourly takes from the system, 1) delivery pressures will be impacted and /or 2) AGT may be required to impose further restrictions or courses of action in order to maintain the operational integrity of the system.

AGT may be required to issue system specific, meter specific and/or hourly OFO's pursuant to General Terms and Conditions Section 26.7(d) to impose further restrictions in order to maintain the operational integrity of the system.

Customers are advised that capacity may become available as the nomination and confirmation process continues throughout the day.

Please contact your Operations Account Representative should you have any questions.

For Gas Day September 21, 2026, Algonquin Gas Transmission (AGT) has approved and scheduled nominations at each pipeline segment and meter station up to AGT's operational capacity. The following locations have been restricted due to requested nominations exceeding AGT's operational capacity:

Restricted Locations	Scheduled and Sealed	Priority % Restricted								Notes
Restricted Locations	Scheduled and Sealed	AO	IT	3B	3A	2C	2B	2A	1	Notes
Iroquois Deliveries		100%	100%	11%
Iroquois Receipts		100%	100%	45%
Hanover West		100%	100%	85%
Stony Point		100%	100%	100%	100%	100%	96%			Planned Outage
Cromwell		100%	100%	80%
Burrillville		100%	100%	49%
Weymouth		100%	100%	99%
G System		100%	100%	48%
C System	Yes
Mendon Receipts		100%	100%	100%	100%	92%
Lincoln Deliveries	Yes
Lincoln Receipts		100%	100%	67%
Centerville-Transco Receipts⁽¹⁾		100%	100%	15%
I-8 West to East	Yes
J System VS3		100%	100%	100%	100%	100%	100%	100%	100%	Isolation
J System VS3 - Backhauls		100%	100%	100%						Isolation


No-Notice Restrictions	Suspended for deliveries through J System VS3 due to line isolation.

OFO / Imbalance Notice
System Wide OFO	No DS - System Wide issued 9/15/26. 500 Dth / 5% Tolerance
Customer Specific OFO	---
Meter Specific OFO	---
Customer Specific Hourly OFO	---
Imbalances Warnings	---

FERC Order 698	Yes

Systemwide Notes:
⁽¹⁾ AGT has scheduled Transco Centerville receipts to the design meter capacity of 222,526 Dth/d.

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.

AGT's system is not designed to sustain delivery pressures above contract levels while making non-ratable/accelerated deliveries above scheduled quantities for more than 6 consecutive hours, to be followed by flows below scheduled quantity for the balance of any 24-hour period. If customers/point operators don't manage hourly takes from the system, 1) delivery pressures will be impacted and /or 2) AGT may be required to impose further restrictions or courses of action in order to maintain the operational integrity of the system.

AGT may be required to issue system specific, meter specific and/or hourly OFO's pursuant to General Terms and Conditions Section 26.7(d) to impose further restrictions in order to maintain the operational integrity of the system.

Customers are advised that capacity may become available as the nomination and confirmation process continues throughout the day.

Please contact your Operations Account Representative should you have any questions.

Algonquin Gas Transmission Notice 183225

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