(Adopted May 7, 1976)(Amended Oct. 8, 1976)
                              (Amended Dec. 2, 1977)(Amended May 5, 1978)


          (a)  A  person  shall  report  any breakdown which results in a
               violation  of any rule in Regulations  IV  or  XI  to  the
               District within  one  hour of such breakdown or within one
               hour of the time said person  knew  or  reasonably  should
               have  known of its occurrence.  Such report shall identify
               the time, specific location, equipment involved and to the
               extent  known, the causes of the breakdown.  The estimated
               time for  repairs  shall  be  reported as soon as possible

          (b)  The provisions of any rule in Regulations  IV  or  XI with
               the exception of Rule 402 or Rule 430 do not apply to  any
               emissions  directly caused by a breakdown of any equipment
               provided all of the following criteria are met:
               (1)  The excess  emissions  did  not  result from operator
                    error, neglect, or improper operation  or maintenance
               (2)  Steps  are  immediately  taken  to  correct condition
                    leading  to the excessive emissions and  to  minimize
                    the emission itself.
               (3)  The equipment  is  operated  only  until the end of a
                    cycle or twenty-four hours, whichever  is  sooner, at
                    which time it shall be shut down for repairs.
               The burden of proving the criteria in this subsection
               shall be upon the person attempting to come under the
               provisions of this rule.

          (c)  If  a  violation  of  any  rule in Regulation IV or XI  is
               likely or suspected as a result  of  a reported breakdown,
               the  Executive  Officer  shall  promptly  investigate  and
               determine whether the occurrence constitutes  a  breakdown
               in  accordance  with  the criteria set forth in subsection
               (b) of this rule.

          (d)  Equipment  may  be  operated   beyond  the  limitation  in
               subsection  (b)(3),  provided  that   a  petition  for  an
               emergency variance has been filed with  the  Clerk  of the
               Hearing  Board  in  accordance  with Regulation V.  In the
               event  that  the breakdown occurs outside  of  the  normal
               District  working   hours,  the  intent  to  file  for  an
               emergency variance shall be transmitted to the District in
               the manner and form prescribed by the Executive Officer.

          (e)  Within one week after a breakdown which caused a violation
               of any rule in Regulations  IV  or  XI has been corrected,
               the owner or operator shall submit a written report to the
               Executive Officer which includes:
               (1)  A  statement that the breakdown has  been  corrected,
                    together  with  the  date  of correction and proof of
               (2)  A  specific  statement  of  the   reason(s)  for  the
                    breakdown sufficient to enable the  Executive Officer
                    to determine whether the occurrence was  a  breakdown
                    in   accordance   with  the  criteria  set  forth  in
                    subsection (b) of this rule;
               (3)  A description of the  corrective  measures undertaken
                    and/or to be undertaken to avoid such  a breakdown in
                    the future;
               (4)  An estimate of the emissions caused by the breakdown;
               (5)  Pictures  of the equipment or controls which  failed,
                    if available.