SDAPCD RULE 52 PARTICULATE MATTER               
LAST REVISED 09/21/83

               
               RULE 52.  PARTICULATE MATTER    (Rev.Effective 9/21/83)

               (a)  APPLICABILITY

                    (1)  In those instances where Rule 53 or 54  is
               applicable the requirements of this rule shall not apply.

                    (2)  The provisions of this rule shall not apply to
               stationary internal combustion engines.

               (b)  STANDARD

               A person shall not discharge into the atmosphere from any
          source particulate matter in excess of 0.1 grain per dry standard
          cubic foot (0.231 grams per dry standard cubic meter) or gas.