The county clerk or register shall not file nor record nor accept for filing or recording any map or plat showing a subdivision of land in any town, village or city having a population of less than one million unless there is endorsed thereon or annexed thereto a certificate of the department or city, county or part-county department of health having jurisdiction approving the water supply system proposed or installed for such subdivision and consenting to the filing thereof.
N.Y. Pub. Health Law § 1117