EXHIBIT 4: SURVEYOR'S CERTIFICATE
   This certificate shall be signed by the surveyor and attached to the final plat to indicate the survey is correct and that the plat is or is not within 500 feet of any tributary draining 640 acres or more.
   SURVEYOR'S CERTIFICATE
   I                                               , hereby certify that I am a Registered Land Surveyor, licensed in compliance with the laws of the State of Illinois, that this plat correctly represents a survey completed by me on the                          day of                       , 19    , that all monuments shown thereon actually exist, that the location, size, type and material of said monuments are accurately shown and that (part/all/or, no part) of this plat or subdivision is situated within 500 feet of any surface drain or watercourse serving a tributary area of 640 acres or more.
                                                                     
Surveyor's signature and registration number