California Air Resources Board 2004 Almanac (web) Table A-22 Appendix A San Diego Air Basin High Emitting Facilities Oxides of Nitrogen (NOx) Facility Name City Tons per Year Cabrillo Power - Encina Power Plant Carlsbad 276 Reactive Organic Gases (ROG) Facility Name City Tons per Year National Steel & Shipbuilding San Diego 161 Directly Emitted Particulate Matter (PM10) Facility Name City Tons per Year Duke Energy-South Bay Power Plant Chula Vista 194 Cabrillo Power - Encina Power Plant Carlsbad 160 Hanson Aggregates - Twin Oaks San Marcos 101 Directly Emitted Particulate Matter (PM2.5) Facility Name City Tons per Year Duke Energy-South Bay Power Plant Chula Vista 193 Cabrillo Power - Encina Power Plant Carlsbad 159