SDAPCD RULE 54 DUST AND FUMES               
LAST REVISED 01/17/72

               
               RULE 54.   DUST AND FUMES    (Rev. Effective 1/17/72)


                A person shall not discharge in any one hour into the 
           atmosphere from any source whatsoever dust or fumes, including lead 
           and lead compounds, in excess of the amounts shown in the following 
           table.

                To use the following table, take the process weight per hour 
           as such is defined in Rule 2(1).  Then find this figure on the 
           table, opposite which is the maximum number of pounds of 
           contaminants which may be discharged into the atmosphere in any one 
           hour.  As an example, if A has a process which emits contaminants 
           into the atmosphere and which process takes 3 hours to complete, he 
           will divide the weight of all materials in the specific process, in 
           this example 1,500 lbs., by 3, giving a process weight per hour of 
           500 lbs.  The table shows that A may not discharge more than 1.77 
           lbs. in any one hour during the process.  Where the process weight 
           per hour falls between figures in the left hand column, the exact 
           weight of permitted discharge may be interpolated.  To convert from 
           pounds to grams, multiply pounds by 454; to convert from pounds to 
           kilograms, multiply pounds by 0.454.  (Rev. Effective 1/17/72)



                                            TABLE
                                               (RULE 54)

           Process         Maximum Weight        Process          Maximum Weight
           Wt/Hr (lbs)     Disch/Hr (lbs)        Wt/Hr (lbs)      Disch/Hr (lbs)

                 50                    .24       3500                  5.52
                100                    .46       3600                  5.61
                150                    .66       3700                  5.69
                200                    .85       3800                  5.77
                250                   1.03       3900                  5.85
                300                   1.20       4000                  5.93
                350                   1.35       4100                  6.01
                400                   1.50       4200                  6.08
                450                   1.63       4300                  6.15
                500                   1.77       4400                  6.22
                550                   1.89       4500                  6.30
                600                   2.01       4600                  6.37
                650                   2.12       4700                  6.45
                700                   2.24       4800                  6.52
                750                   2.34       4900                  6.60
                800                   2.43       5000                  6.67
                850                   2.53       5500                  7.03
                900                   2.62       6000                  7.37
                950                   2.72       6500                  7.71
                1000                  2.80       7000                  8.05
                1100                  2.97       7500                  8.39
                1200                  3.12       8000                  8.71
                1300                  3.26       8500                  9.03
                1400                  3.40       9000                  9.36
                1500                  3.54       9500                  9.67
                1600                  3.66       10000                10.00
                1700                  3.79       11000                10.63
                1800                  3.91       12000                11.28
                1900                  4.03       13000                11.89
                2000                  4.14       14000                12.50
                2100                  4.24       15000                13.13
                2200                  4.34       16000                13.74
                2300                  4.44       17000                14.36
                2400                  4.55       18000                14.97
                2500                  4.64       19000                15.58
                2600                  4.74       20000                16.19
                2700                  4.84       30000                22.22
                2800                  4.92       40000                28.30
                2900                  5.02       50000                34.30
                3000                  5.10       60000                40.00
                3100                  5.18
                3200                  5.27           or
                3300                  5.36         more
                3400                  5.44