SACAQMD RULE 406 SPECIFIC CONTAMINANTS          
LAST REVISED 12/06/78          

          SACRAMENTO METROPOLITAN AQMD                RULES AND REGULATIONS
                                  RULE 406 SPECIFIC CONTAMINANTS
                                         Adopted 3-11-70
                                (Amended 6-1-76, 8-3-77, 12-6-78)

                                              INDEX

          100 GENERAL
              101  PURPOSE

          200 DEFINITIONS
              201  COMBUSTION CONTAMINANTS

          300 STANDARDS
              301  SULFUR COMPOUNDS
              302  COMBUSTION CONTAMINANTS

          400 ADMINISTRATIVE REQUIREMENTS (NOT INCLUDED)

          500 MONITORING AND RECORDS (NOT INCLUDED)
          
          100 GENERAL

              101  PURPOSE:   To limit the emission of sulfur compounds and
                   combustion   contaminants   through   establishment   of
                   emission concentrations.

          200 DEFINITIONS

              201  COMBUSTION CONTAMINANTS:   Particulate matter discharged
                   into the atmosphere from the  burning  of  any  kind  of
                   material containing carbon in a free or combined state.

          300 STANDARDS

              301  SULFUR COMPOUNDS:  A person shall not discharge into the
                   atmosphere from any single source of emission whatsoever
                   sulfur  compounds  in  any  state or combination thereof
                   exceeding in concentration at  the  point  of discharge:
                   sulfur  compounds,  calculated as sulfur dioxide  (SO2):
                   0.2% by volume, except  as  otherwise  provided  in Rule
                   420.

              302  COMBUSTION  CONTAMINANTS:   A person shall not discharge
                   into the atmosphere from any  single  source of emission
                   whatsoever,  combustion  contaminants in  any  state  or
                   combination thereof exceeding  in  concentration  at the
                   point  of  discharge:  0.23 grams per dry standard cubic
                   meter (0.1 grains per dry  standard  cubic  foot) of gas
                   calculated  to  12% of carbon dioxide (CO2) at  standard
                   conditions except that 0.69 grams per dry standard cubic
                   meter (0.3 grains  per  dry  standard cubic foot) of gas
                   calculated to 12% of carbon dioxide  (CO2)  at  standard
                   conditions  shall be applied to incinerators rated  less
                   than or equal  to  100  pounds  per  hour  capacity  and
                   installed   before   July  1,  1978.  In  measuring  the
                   combustion contaminants  from  other  than  pathological
                   incinerators  used  to dispose of combustible refuse  by
                   burning, the carbon dioxide (CO2) produced by combustion
                   of any liquid or gaseous  fuels  shall  be excluded from
                   the calculation to 12% carbon dioxide (CO2).