Specifications include, but are not limited to: A. Performance will be made only upon authorization of the District, in the form of a bon-a-fide, signed Purchase Order and shall thereafter be made if, as, and when required and ordered by the District. B. Performance shall be at the location identified in each order. C. The scope of this bid and requirements of the District as shown in the specifications shall not be considered as binding on the District, and the work actually may be less than or greater than projected. D. Bidder warrants that all work will be of the type and quality specified, and the District may reject and/or refuse work that falls below the quality required in the specifications. E. Failure by the Vendor to make reasonable progress as and when requested shall entitle the District to seek work from alternate sources wherever available, with the right to seek reimbursement from the Vendor for amounts, if any, paid by the District over and above the bid price. F. All materials delivered shall be free of any and all liens and shall upon acceptance thereof become the property of the District, free and clear of any materialmans, suppliers, or other type liens. G. All work performed, as herein shown under the Specifications, shall be of the highest quality workmanship and shall in every respect meet or exceed the industry standards for this type Bid.