Bow, NH is the location for Public Service of New Hampshire's coal-fired Merrimack Station power plant. The limestone is used as part of the plant's flue gas desulfurization mitigation program. As with the coal, limestone shipments are on a before-need basis and not on a set schedule. in "ye olde" days, there could be 3x100-hopper coal shipments per week. That got cut back to 3x88 weekly, and further reduced when Bow was reduced to a peak-demand facility.
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