The purpose of this rule is to prevent and control particulate matter air pollution from manufacturing processes and associated operations.
This rule was part of the original SIP package in 1972. This rule is a “backstop” for existing sources not subject to federal standards. West Virginia was not originally in attainment with the 1971 TSP NAAQS, 1997 PM, and 2006 PM2.5. There were six 1997 PM2.5 maintenance areas and two 2006 PM2.5 maintenance areas. There are several similar federal regulations dealing with opacity limits for manufacturing processes.
DEP determined that this rule is not more stringent; however, a report was submitted to document the comments received. Please see highlighted section for comments pertaining to 45CSR7.
