TSP: 872670161
TSP Name: ENABLE GAS TRANSMISSION, LLC
Critical Notice Description: Critical notice
Notice Effective Date: 04/11/2023
Notice Effective Time: 09:00
Notice End Date: 04/14/2023
Notice End Time: 08:59
Notice Identifier: 5235
Notice Status Description: Initiate
Notice Type: Maintenance
Posting Date/Time: 03/13/2023 11:17
Required Response Indicator Description: No response required
Response Date:
Response Time:
Subject: LINE AD PIG RUNS
Notice Text:
This Operational Alert is being issued pursuant to Section 20, GT&C, of EGT s Tariff to notify its shippers of
upcoming planned cleaning pig maintenance on its Line AD System located in EGT s West 1, West 2, and Flex
pooling area as part of EGT s integrity management plan.
In order to ensure safe and efficient pigging operations, EGT will be taking the following actions between April
11th and April 14th, 2023:
* Reduce the balancing tolerance from 1,000 dth to 500 dth.
* EGT will be locking all nominations west of EGT s Chandler Compressor Station during the evening cycle
of each impacted day
* EGT will balance receipt and delivery quantities during the Timely Cycle.
The following is a day-to-day breakdown on the impacts of each leg of the cleaning pig run.
April 11th, 2023 - Line AD - Sayre to Arapaho
The maximum capacity through EGT s Custer Compressor Station will be limited to approximately 245,000 dth.
Due to operational requirements at the beginning of Line AD in order to launch and maintain proper pig speed,
the following meters will be prioritized and scheduled up to 125,000 dth:
* Oneok Westex (MP# 805222)
* Midcoast IC 8 IN (MP# 301999)
Impacted points include, but are not limited to, the following meters which may be scheduled between
approximately 50%-60% of MRO quantity:
* Markwest Arapaho (MP# 810010)
* Markwest Buffalo Creek (MP# 730040)
* TransOK Naggs (MP# 2086)
* OneOK Panther Creek (MP# 2078)
* EGG McClure (MP# 301104)
April 12th, 2023 - Line AD Arapaho to Amber Compressor Station
During this leg of the pig run, the maximum capacity through EGT s Custer Compressor Station will be limited to
approximately 130,000 dth in order to launch and maintain proper speed pig.
Impacted points include, but are not limited to the following meters which may be scheduled to approximately
35%-50% of MRO quantity:
* Oneok Westex (MP# 805222)
* Midcoast IC 8 IN (MP# 301999)
* Markwest Arapaho (MP# 810010)
* EGG McClure (MP# 301104)
* Markwest Buffalo Creek (MP# 730040)
* TransOK Naggs (MP# 2086)
* OneOK Panther Creek (MP# 2078)
April 13th, 2023 - Line AD Amber Compressor Station to ADA Storage Facility
During this leg of the pig run, the maximum capacity through EGT s Amber Compressor Station will be 345,000
dth. All receipt points west of the Amber Compressor Station will be subject to reductions and may be scheduled
to approximately 75%-85% of MRO quantity.
Furthermore, all points between EGT s Amber Compressor Station and EGT s Byars Lake Compressor Station will
be subject to reductions due to a capacity constraint of approximately 650,000 dth through EGT s Byars Lake
Compressor Station. Impacted points include, but are not limited to, the following meters which may be
scheduled to approximately 80%-90% of MRO quantity:
* Wex IC (MP# 303077)
* Iron Horse (MP# 290940)
* Bradley Plant IC (MP# 808775)
* EOIT 760 to AD (MP# 2905)
April 14th, 2023 - Line AD - ADA Storage Facility to Chandler Compressor Station
All meters west of EGT s Byars Lake Compressor Station will be limited to approximately 650,000 Dth in the
aggregate.
Based on current nominations, EGT anticipates impacts to all its services, including primary firm, which may be
scheduled to approximately 85%-90% of MRO quantity.
During the dates of the pig runs, shippers whose receipts are in the West 1, West 2 and Flex Pooling areas
should nominate point to point from their primary receipt point to maintain the highest priority level of service.
During this maintenance, shippers should maintain actual receipts and deliveries commensurate with scheduled
volumes. EGT will continue to monitor the pipeline s pressure and imbalances and will, if necessary, take further
actions including the issuance of one or more Operational Flow Orders (OFO). Shippers whose receipts exceed
their applicable scheduled volumes may be subject to additional fees, charges and/or penalties including, but
not limited to, Excess Contract Quantities charges pursuant to EGT s Tariff.
The volumes required to achieve an optimal pig speed may vary based on the operating conditions on the day of
the run. Should the details of this notice change, EGT will notify its shippers by updating this posting. EGT will
schedule nominations to the available capacity on each impacted day in accordance with its Tariff.
If you have any questions concerning this alert, please contact your Scheduling Representative.
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