Scientists collect samples from Catawba River near New Indy paper mill The Catawba Riverkeeper said it's received multiple reports of unsightly foam forming downstream from the New Indy paper mill. Author: Brandon Goldner Updated: 6:22 PM EDT May 11, 2021 CATAWBA, S.C. — Scientists launched into the Catawba River Tuesday to investigate whether a York County paper mill, already being blamed for emitting a stinky odor, is also causing foam to form downstream from the plant. The river forms the eastern border of the New Indy paper mill in Catawba. On Tuesday, a three-person team made up of two South Carolina Department of Health and Environmental Control (DHEC) scientists and Brandon Jones of the Catawba Riverkeeper Foundation spent the day collecting samples from different spots on the river.