Philadelphia officials are closely monitor drinking water after a chemical spill in the Delaware River

The City of Philadelphia is monitoring its drinking water system carefully following a chemical spill upstream in the Delaware River, and said the water would be safe to drink until at least the end of the day Monday.

​The City of Philadelphia is monitoring its drinking water system carefully following a chemical spill upstream in the Delaware River, and said the water would be safe to drink until at least the end of the day Monday.