SC paper mill reacts to EPA blaming it for odor gagging south Charlotte, Rock Hill Joe Marusak, The Charlotte Observer May 15—A South Carolina paper mill has issued it first public comments in response to government health officials blaming the company for an odor that's sickened Carolinians for many months. The U.S. Environmental Protection Agency on Thursday ordered New-Indy Containerboard of Catawba, S.C. — which is just southeast of Rock Hill — to immediately lower hydrogen sulfide emissions and monitor the air in communities surrounding the plant. The EPA also will begin monitoring the air in the greater Rock Hill area and into North Carolina, as requested by various state and local agencies and the Rock Hill-based Catawba Indian Nation, EPA officials said.