Questions will be accepted until 4:00 P.M., prevailing time, on March 26, 2021. The apparent low bidder and the next two lowest bidders must submit, to the Engineer, originals of the Bidding Documents within two (2) business days from the date of the bid opening. Reproduction of the Bidding Documents and placement on web sites other than PennBid, is not permitted. Bids may be modified or withdrawn at any time prior to the opening of Bids. After the Bid opening, Bids may be withdrawn only by complying with Commonwealth of Pennsylvania laws and regulations. A summary of such laws and regulations is given in the Instructions to Bidders (Document 00100). Bids must be on the forms furnished by the Owner. No bid will be considered unless it is accompanied by Bid security in the form of a certified check, bank check, irrevocable letter of credit, or bid bond in an amount not less than ten percent (10%) of the bid total. Such bid security shall be made payable to Upper Uwchlan Township. All bid bonds shall be accompanied by a power of attorney from a licensed surety company as described in the Bidding Documents. Bids shall remain open for a period of 60 days from the date of Bid opening unless award is delayed by a required approval from a governmental agency, the sale of bonds, or the award of a grant or grants, in which event the Bids shall remain open for a period of 120 days from the date of Bid opening. See Instructions to Bidders for other provisions on the time available for acceptance of Bids. It is a requirement of this Contract that Bidders shall have a minimum five (5)-year, ten (10) project documented experience in the type of Work required by this Project. It is a requirement of this Contract that at least 50% of the Work be performed by Bidders' own work force, not by subcontractor(s). The Contract will be subject to the Prevailing Minimum Wage Determination established by the Commonwealth of Pennsylvania, Department of Labor and Industry. Bidders, subcontractors, their workers and any persons providing labor and products to the Project shall be persons lawfully permitted to work in the United States and the Commonwealth of Pennsylvania. As a pre-condition of being awarded a Contract, Successful Bidder and its subcontractor(s) are required to provide confirmation of compliance with Act 127 of 2012, the "Public Works Employment Verification Act". The OWNER reserves the right, at its option, to waive any informalities, irregularities, defects, errors or omissions in any or all proposals and to reject any or all proposals.