It is intended that a contract will be awarded to the low Bidder provided that such low Bidder can establish competence to fulfill all provisions in the contract. Include in bid all costs of labor, material, equipment, allowances, all federal taxes, insurance and contingencies with overhead and profit necessary to complete the work for which bid is made, including all trades, without further cost to the Village. No compensation will be allowed by reason of any difficulties which the Bidder could have discovered or reasonably anticipated prior to bidding. The Village reserves the right to reject any and/or all bids, to waive minor informalities, or to make an award other than to the low Bidder according to his own judgment which is in the best interest of the Village of River Forest. A Bid Bond or Certified Check shall accompany each bid in the amount of ten percent (10%) of the total sum of the Bid, made payable to Village of River Forest. Same, which it is agreed, shall be claimed by Village as Village's property if Bidder to whom Contract award has been made, defaults in executing agreement within ten (10) calendar days of written notification of contract award to him, or if Bidder fails to furnish the Village the required Payment of Performance Bond. Security of all Bidders will be returned on signing of the contract or rejection of all bids. The Contractor shall furnish to the Director of Public Works final waivers of lien for labor and materials upon completion of the project and before final payment. Any contractor in doubt as to the true meaning of any part of the specifications or other contract documents, may request in writing an interpretation thereof from the Village or representative. The person requesting the interpretation shall be responsible for its prompt delivery. The interpretation will be made by written addendum duly issued by the Village. If a written addendum is issued, either as a result of a request for an interpretation or as a result of a change in the specifications initiated by the Village, a copy of such addendum will be mailed to all prospective contractors. The Village will not assume responsibility for receipt of such addendum. In all cases, it will be the contractor's responsibility to obtain all addenda issued. Contractors will provide written acknowledgement of receipt of each addendum issues with the bid submission.