SOC Follow-Up Report – Location Specific Draft Condition
DURATION OF EVENT
A location-specific Strained Operating Condition (“SOC”) for a Draft condition was declared by EPNG as follows:
Effective: Gas Day January 5, 2023
AFFECTED AREA(S)/LOCATION(S)
The following location was subject to the requirements of the SOC declaration:
IBLYTHE (314980)
TIMELINE
[January 5, 2023, 10:13 am Mountain Standard Time (MST)] EPNG declared a location-specific SOC for a draft condition effective Gas Day January 5, 2023, with the imbalance threshold set at 5% (Critical Notice No. 617034).
[January 6, 2023, 6:44 am MST] EPNG lifted the subject location-specific SOC effective Gas Day January 6, 2023 (Critical Notice No. 617043).
APPLICABLE OPERATING CONDITIONS
Thursday, Gas Day January 5
-- At 10:13 am MST, EPNG declared a location-specific SOC for a draft condition (Notice No. 617034) for the location(s) listed above effective Gas Day January 5. In its notice, EPNG stated that linepack was within acceptable levels to start Gas Day January 5. The location listed above had drafted Gas Day January 4, without a scheduled volume. EPNG stated that continued drafting by the location listed above could undermine EPNG's ability to maintain linepack within acceptable levels.
-- The location(s) listed above drafted the system by 59 MMcf without nominating any gas flow over the course of the previous two days.
-- EPNG's system linepack started the day at 7,592 MMcf and Washington Ranch was on withdrawal, averaging 48 MMcf.
Friday, Gas Day January 6
-- EPNG lifted the subject location-specific SOC for a draft condition effective Gas Day January 6, 2023. The location listed above adjusted scheduled quantities to align with actual deliveries.
-- EPNG's system linepack started the day at 7,632 MMcf and Washington Ranch was on withdrawal, averaging 8 MMcf.
ACTIONS TAKEN BY EPNG AND SHIPPERS
The following actions were taken:
1. EPNG contacted the interconnecting party at the affected location prior to declaring the SOC and requested that scheduled quantities be adjusted to match actual flowing gas quantities.
2. EPNG declared a location-specific SOC for a draft condition on January 5, 2023, at 10:13 am MST. The SOC was in effect for Gas Day January 5, 2023, only.
3. After EPNG declared the SOC, the affected customer took corrective actions to align their scheduled supplies with their actual deliveries.