Anticipating limited operational flexibility to manage positive imbalances in downstream Zones 4, 5 and 6 due to possible impacts of Hurricane Irene, Tennessee issued an Imbalance Warning to become effective Saturday in those zones. All delivery point operators are required to keep actual daily takes out of the system equal to or greater than scheduled quantities regardless of their cumulative imbalance position, while all zone receipt point operators must keep actual daily receipts into the system equal to or less than scheduled quantities regardless of their cumulative imbalance position.

Southern California Gas said it regained 125 MMcf/d of injection capacity at its Aliso Canyon storage facility Thursday after finishing three days of scheduled maintenance on Main Unit K-25 a day early. However, a combined 70 MMcf/d of injection capacity will be lost from Monday through Friday next week during further work at Aliso Canyon and the Honor Rancho facility.

Kern River reported completing a turbine exchange at Coyote Creek Compressor Station and increased the station’s operational capacity to the August default of 1,873,751 Dth/d Thursday. The pipeline also said it anticipated that the Apex Expansion project (see Daily GPI, Sept. 20, 2010), originally scheduled to be in service Nov. 1, could be completed as early as Oct. 1. Updates will be posted as more information becomes available, it added.

Gulf South plans one day of maintenance Tuesday at Hall Summit Legacy Compressor Station; only Primary Firm service will be scheduled in the Hall Summit/East Texas/Koran Station area that day. Further work is set for Wednesday on Vixen Expansion Compressor Station, during which upstream capacity could be reduced by as much as 150,000 Dth, Gulf South said.

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