Section 24-507. Private sewers and drains

a.  The  commissioner  of
  environmental protection may  issue  permits  to  persons  to  construct
  sewers  or  drains, or to connect with any sewers or drains built in any
  street, at their own expense. Such permission shall be granted only upon
  the agreement, in writing, of the persons applying therefor:
    1. That they will comply with the provisions of sections 24-521, 3-508
  and 3-509 and of subchapter one of chapter one of title nineteen of  the
  code;
    2. That they will indemnify the city for any damages or costs to which
  it  may  be  put  by  reason  of  injuries  resulting  from  neglect  or
  carelessness in the performance of the work so permitted;
    3. That they or their  successors  in  interest  will  make  no  claim
  against the city if the work so permitted shall be taken up by the city.
    b.  The  commissioner  of  environmental  protection, at any time, may
  revoke such permit and direct such sewers or drains to be  taken  up  or
  removed.