The North Carolina Department of Environmental Quality’s Division of Marine Fisheries, in partnership with the U.S. Food and Drug Administration, will conduct dye study training in the Cape Fear River, beginning on Wednesday, Sept. 18. The dye, which may cause the water to appear reddish or pinkish in a portion of the river, will be released from the Carolina Beach Wastewater Treatment Plant for a 12-hour period, beginning in the early morning.