SAN DIEGO COUNTY AIR POLLUTION CONTROL DISTRICT
RULE 54 - DUST AND FUMES
(Rev. Effective 1/22/97)
Except as provided in section (b), the provisions of this rule are applicable to:
The provisions of this rule shall not apply to operations comprised exclusively of a combustion process where liquid fuels, gaseous fuels and corresponding combustion air are introduced.
A person shall not discharge in any one hour into the atmosphere from any source 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 defined above. This figure is then found 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 is a process which emits contaminants into the atmosphere and which process takes 3 hours to complete, the weight of all materials in the specific process, in this example 1,500 lbs., is divided 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.