Section 24-509. Construction of sewers

a. The commissioner of environmental
  protection shall prescribe the manner of opening sewers  or  drains  and
  the  form, size and material of which the connections therewith shall be
  composed.
    b. It shall be unlawful to make a connection with any sewer  or  drain
  without   the  written  permit  of  the  commissioner  of  environmental
  protection, except that, in conjunction with the issuance  of  a  permit
  for  the  construction or alteration of a structure within the curbline,
  the commissioner of buildings may issue a permit for connection  with  a
  sewer or drain. Such connection shall be in the manner prescribed by the
  commissioner  of  environmental protection. The commissioner issuing the
  permit shall require an applicant for such permit to demonstrate to  his
  or her satisfaction that the proposed discharges to the sewer will be in
  compliance  with  section  24-523  of  this  chapter and the regulations
  promulgated pursuant to such section. For such purpose the  commissioner
  issuing  the  permit may require the submission of plans, specifications
  and such other information as he or she may reasonably require.
    c. When public sewers are  made  available,  the  individual  on  site
  private  sewage disposal system or any other means of sewage disposal or
  discharge shall be abandoned in a manner prescribed by the  commissioner
  of  buildings.  The  building  house  sewer  shall  be  connected to the
  available public sewer within six months of  the  date  of  notification
  that  the  sewer  has  been  accepted  to  receive flow. As used in this
  subdivision the term "individual on site private sewage disposal system"
  shall mean a system  of  interconnected  structures,  units,  pipes  and
  devices,  including a septic tank and an absorption area, which does not
  connect to the city sewer system, and which is used to collect,  convey,
  treat  and dispose water-flushed or water-carried domestic or commercial
  sewage on one tax lot.
    d. Any person who violates subdivision c of this section, or any order
  issued by or rule promulgated  by  the  commissioner  pursuant  thereto,
  shall  be  liable for a civil penalty in an amount not greater than five
  thousand dollars for  each  violation,  which  may  be  recovered  in  a
  proceeding  before  the  environmental  control  board.  A proceeding to
  recover any civil penalty authorized pursuant to this section  shall  be
  commenced  by the service of a notice of violation returnable before the
  environmental control board, which shall have the power  to  impose  the
  civil penalties prescribed herein.