A Massachusetts sand and gravel company, Kimball Sand, has agreed in a settlement with EPA to conduct opacity testing at one of its operations and to replace three stationary engines with newer, cleaner engines. The company also paid a penalty of $120,000 for violations of the applicable new source performance standard (opacity) and the air toxics rules for stationary reciprocating internal combustion engines (RICE).
Kimball Sand operates rock crushing equipment including stone crushers, screeners, conveyer belts, as well as its engines at their facility. The equipment is subject to federal Clean Air Act (CAA)’s New Source Performance Standards for Nonmetallic Mineral Processing Plants, and the engines are subject to the CAA National Emission Standards for Hazardous Air Pollutants for Stationary Reciprocating Internal Combustion Engines.
Industry sources believe this may be the first RICE enforcement settlement at a sand and gravel operation.