Partly as a result of Tropical Storm Ida impacting some receipt points on its system, Florida Gas Transmission issued an Overage Alert Day for market-area customers Monday, noting that linepack was low and highs in the mid 80s were forecast for Florida. The tolerance for negative daily imbalances was set at 15%.

Northern Natural Gas reported that over the weekend shippers had been delivering into its system “significantly more gas than they have been using.” With the combination of resulting long imbalances, high linepack and storage at maximum injection, Northern said Monday it was issuing a System Underrun Limitation (SUL) for all field and market zones. However, it delayed the SUL implementation to the start of Tuesday’s gas day to minimize impact to shippers’ weekend business.

Having announced that it did not anticipate having any injection capacity left at its storage facilities as of last Friday until further notice, Southern California Gas kept a high-linepack OFO that was implemented Friday in effect through at least Tuesday.

Pacific Gas and Electric ended a systemwide high-inventory OFO Monday after it had been in place for two days.

CIG said it will cancel Tuesday the Strained Operating Condition (SOC) that took effect Friday. See the bulletin board for a list of nomination/scheduling changes that will take effect when the SOC ends.

Gulf South said it has been notified that due to unplanned maintenance, the North Terrebonne Gas Plant in South Louisiana planned to suspend processing and begin plant bypass mode starting either Monday or Tuesday, adding that it was awaiting confirmation from the plant. Two meters are required to shut in production during the plant bypass operations. Another 14 that have waivers in place will be allowed to remain online “as long as Gulf South is able to blend these volumes to meet our tariff specifications,” the pipeline said. PVR (plant volume reduction) nominations at all of those points should be reduced to zero during the bypass, Gulf South added.

Williams Field Services (WFS) has posted that maintenance at its Mobile Bay processing plant is completed, Transco noted Monday in saying it had resumed accepting nominations for delivery to Gulfstream at the Coden Out meter. WFS had expected the work to continue for about 15 days when it began last Tuesday (see Daily GPI, Nov. 2).

Northwest said it will place the Colorado Hub Connection line and the Wild Horse interconnect with the White River Hub system in service Tuesday. Work is still being finalized at the Meeker Receipt meter station; Northwest anticipates that it will be completed Thursday and said it will notify shippers when Meeker Receipt commissioning work is finished and the point is available for nominations. See the bulletin board for points and their respective capacities that are being activated on the Northwest Passage nominations system. Questar, operator of White River Hub, noted that the Wild Horse interconnect is only capable of making physical deliveries from the hub to Northwest. “However, Northwest and White River have agreed to allow quantities to be scheduled for deliveries from Northwest to White River at the Wild Horse interconnect by displacement when nominated quantities for receipt and delivery net to delivery,” Questar said.

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