The purpose of this bid is to establish a contract, by means of sealed bids, for the purchase and delivery of janitorial supplies, including plastic liners and paper products for various Departments throughout the City, as specified herein, on an as needed basis. This contract shall remain in effect for one (1) year from date of contract execution by the Mayor and City Clerk, and may be renewed by mutual agreement for two (2) additional years, on a year to year basis.