MOJAQMD RULE 908 STD. FOR ASPHALT CONCRETE PLANTS          
LAST REVISED 12/03/76

          
          (Adopted: December 3, 1976)

                                       Rule 908
                             Standard of Performance for
                               Asphalt Concrete Plants


          (a)  Definitions

               (1)  ASPHALT  CONCRETE  PLANT  means  any  facility  used to
                    manufacture  asphalt  concrete  by  heating  and drying
                    aggregate and mixing with asphalt cement.

                    For the purpose of this rule, an asphalt concrete plant
                    is  comprised only of any combination of the following:
                    Dryers;  systems  for screening, handling, storing, and
                    weighting   hot   aggregate;    systems   for   lading,
                    transferring, and storing mineral  filler;  systems for
                    mixing asphalt concrete; and the loading, transfer, and
                    storage   systems   associated  with  emission  control
                    systems.

          (b)  Emission Standard

               This   rule  applies  to  asphalt   concrete   plants,   the
               construction,   modification   or  reconstruction  of  which
               commenced after June 11, 1973.

               On and after the date on which the performance test required
               to be conducted by Rule 902 (b)(1) is completed, no owner or
               operator of a facility subject to  the  provisions  of  this
               rule  shall  cause  to be discharged into the atmosphere any
               gases which:

               (1)  Contain particulate  matter  in excess of 90 milligrams
                    per  day  standard  cubic meter (0.04  grains  per  dry
                    standard cubic foot).

               (2)  Exhibit 20 percent opacity, or greater.

          (c)  Testing Procedure

               Emissions shall be tested according to the methods specified
               by the Air Pollution Control Officer.