Section 14-1414. Contracts for construction of system

The board of sewer
  commissioners of a village authorized to construct the whole or any part
  of a sewerage system shall provide for the construction thereof,  either
  under  an  entire  contract,  or  in parts or sections, as the board may
  determine. All contracts shall be let to the lowest  responsible  bidder
  after  advertisement  for  bids where so required by section one hundred
  three of the general municipal law.  No contract shall be made by  which
  a  greater  amount shall be agreed to be paid than the maximum stated in
  the resolution or in the petition for the construction of such  sewerage
  system.  Nothing herein contained shall make it unlawful for the village
  authorities to make extensions  to  sewerage  systems  or  to  construct
  additional sewerage systems through or by the officers or employees of a
  village  and  authority  is  hereby  granted  to  all villages to extend
  sewerage systems and  to  construct  new  sewerage  systems  by  village
  employees  under  the  direction  of the superintendent of public works,
  street commissioner or similar officer, when authorized by resolution of
  the board of trustees and when in accordance with plans approved by  the
  state department of health.