South Coast Air Quality AIR POLLUTION DESIGN, ENGINEERING, PERMITTING, CONSTRUCTION & MONITORING Cornerstone designed, engineered, permitted, constructed and monitors a carbon adsorber system for polyurethane manufacturing. The system reduces emissions of volatile organic compounds (VOCs). This allows the facility to utilize materials that meet customer specifications. The system maintains environmental compliance with prevailing air quality regulations from the South Coast Air Quality Management District (SCAQMD). FOAMEX INTERNATIONAL Orange, CA