Section 1101. Inspection

1.  The  person, officer, board or commission
  having the management and control of the potable  water  supply  of  any
  municipality,  state  or United States institution, park, reservation or
  post, and in the city of New York,  the  commissioner  of  environmental
  protection,  and  the  board of water supply of the city of New York, or
  the corporation furnishing such supply, may make such inspection of  the
  sources of such water supply as such person, officer, board, corporation
  or  commission  deems  advisable  and  to ascertain whether the rules or
  regulations of the department, and of the commissioner of  environmental
  protection  of the city of New York, and of the board of water supply of
  the city of New York, are complied with, and shall make such regular  or
  special   inspections  as  the  commissioner,  or  the  commissioner  of
  environmental protection of the city of New York, or the board of  water
  supply of the city of New York, may prescribe.
    2.  The  authorities  in  charge  of  the  water  supply or their duly
  authorized representatives may without fee or hindrance, enter,  examine
  and  survey  all  grounds,  structures,  buildings  and  places  on  the
  watershed tributary to the sources of such  water  supply  in  order  to
  ascertain whether such rules or regulations are complied with.