SJUAPCD RULE 6030 EPISODE CRITERIA LEVELS          
LAST REVISED 12/17/1992

          RULE 6030 EPISODE  CRITERIA LEVELS (Adopted May 21, 1992, Amended
                    December 17, 1992)



          Pollutant  Averaging   Health   Stage 1    Stage 2    Stage 3
                        Time    Advisory  (Alert)   (Warning) (Emergency)

          Ozone        1 Hour   0.15 ppm  0.20 ppm   0.35 ppm   0.50 ppm
                                                               for 1 hr.*

          Carbon       1 Hour      **      40 ppm     75 ppm    100 ppm
          Monoxide                                             for 1 hr.*

                      4 Hours      **      25 ppm     45 ppm     60 ppm

                         12        **      20 ppm     35 ppm     50 ppm
                       Hours

                      8 Hours      **      15 ppm     30 ppm     40 ppm

          Sulfur       1 Hour      **     0.5 ppm    1.0 ppm    2.0 ppm
          Dioxide

                         24        **     0.2 ppm    0.7 ppm    0.9 ppm
                       Hours

          Particulate    24        **    375 ug/m3  625 ug/m3  875 ug/m3
          Matter       Hours


          * and predicted to persist for one additional hour.

          ** Health Advisories  for  these  pollutants  are issued at their
          respective Stage 1 levels.