(Amended by Ordinance Nos. 168183 and 176955, effective October 9, 2002.)  When any plumbing work is being done contrary to the provisions of this Code, the Director of the Bureau of Development Services may order the work stopped by notice in writing served on any persons engaged in the doing or causing such work to be done, and any such persons shall forthwith stop such work until authorized by the Director to proceed with the work.