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Transportation Notes

Southern California Gas extended a high-linepack OFO through at least Saturday.

Florida Gas Transmission kept an Overage Alert Day for market-area customers in place for a fourth day Friday but further loosened the tolerance for negative daily imbalances to 25%.

Northwest said Friday the land movement south of Kemmerer (WY) Compressor Station it had noted earlier in the week (see Daily GPI, June 24) appears to be more extensive than previously thought. The land movement has been attributed to third-party activities taking place adjacent to Northwest's pipeline. The third party has ceased such activities and is cooperating fully, Northwest said. Based on geotechnical data presented by the third party, Northwest has determined that both the mainline and the loop line will be blown down for stress relief excavation. To allow additional time for all involved parties to manage the changes to the work plan, the excavation will begin Tuesday. Since both lines will be blown down, available capacity at Kemmerer will be reduced to zero during the work. Therefore, northbound or southbound primary nominations in excess of a net zero will result in Northwest declaring a deficiency period and allocating nominations accordingly. Northwest currently estimates that the initial excavations will continue through Wednesday, and if work proceeds as planned, it intends to return at least one line to service Thursday. At current nomination levels, this would allow all nominations to be scheduled, the pipeline said. Since Northwest has a significant storage balance at the Jackson Prairie facility, it said maximum net receipts for Park and Loan at Jackson Prairie will be set to 300,000 Dth/d to offer shippers an alternate supply during the Kemmerer outage.

ANR said it has shut in the Stiles Ranch receipt point in the Southwest Area Pipeline Segment due to gas quality issues and is not accepting nominations or flowing gas there until further notice.

Texas Eastern said it is continuing detailed investigations on its Line 16 (a single-line system) between the Santa Fe and Petronilla compressor stations in South Texas. Having completed its investigations downstream of Santa Fe up to mile post 102.56, Texas Eastern has made five meters available for flow again.

While conducting its Department of Transportation-mandated Pipeline Integrity Program, Algonquin determined that further detailed investigations are required on its 26-inch diameter line between the Stony Point and Southeast compressor stations. As a result, AGT planned to isolate the line effective Saturday between the two stations while it conducts the investigations. Consequently, capacity through Southeast would be reduced to about 820,000 Dth/d. Based on current nominated quantities, Algonquin said receipts sourced upstream of Southeast for delivery downstream would be restricted for interruptible and secondary firm services. It suggested four alternate flow path options allowing shippers to avoid the restriction. Algonquin estimated that its investigations will take about three weeks to complete.

Gulf South reported being notified by Enterprise Products Partners that the Burns Point Processing Plant in St. Mary Parish, LA, is scheduled to shut in Monday for three days. Gulf South will operate in plant bypass mode for the duration of the outage but said as long as it can blend volumes to meet tariff specifications, locations upstream of the plant will be allowed to remain online.

Line P between the Chestnut Junction and Walbridge mainline valves in Johnson and Lawrence counties, KY, will be taken out of service July 5 for an estimated 90 days to allow replacement of 12.5 miles of bare, coupled and cathodically unprotected pipe, Columbia Gas (TCO) said. The start date was delayed from the previously announced June 20 due to contractor issues, TCO added. See the bulletin board for impact details and lists of meters that will either be shut in during the outage or may be affected.

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