RALEIGH, N.C. — Pressure is building to stop production of compounds found in the drinking water of a North Carolina city 100 miles (160 kilometers) from the chemical plant where they’re made.

Spokesmen for The Chemours Co. did not respond Thursday to an invitation to comment after Wilmington’s city council urged state officials to force the company to stop making fluorochemicals at the plant near Fayetteville.

Wilmington this week joined New Hanover County and the local water district in urging an end of production of products like GenX used in making Teflon. Local officials say the company can’t seem to stop discharging the chemicals into the Cape Fear River.

The site includes operations for DuPont, which spun off Chemours in 2015. A DuPont spokesman didn’t respond when asked about fluorochemicals at the plant.