4.1. Requirements A. The Dane County Regional Airport, as represented by the Purchasing Division, intends to purchase approximately 1000 tons of sand annually. B. Actual quantities purchased depends on usage. C. Sand will be purchased as needed with a minimum quantity of 100 tons. D. Pricing must include shipping. E. The intended purchase quantity is not a guarantee - actual quantities purchased will depend on usage and needs. 4.2. Material Specifications A. Specification Compliance: Bidder shall note in Section 4.1 any deviation from the minimum specifications stated herein must be identified in detail in the Specifications Deviations section of the bid and must include a description of how the proposed item(s) differ from the bid requirements, along with detailed justification for such deviation. Bidder shall include photos and schematics as necessary, for complete clarification. B. The specifications below describe an acceptable product. Minor variations in specification may be accepted if, in the opinion of County staff, they do not adversely affect the quality, maintenance or performance of the item(s). Dane County reserves the right to accept or reject any and all bids, to waive informalities and to choose the bid that best meets the specifications and needs of the County. C. The Following is the minimum standard for washed sand for runway use. U.S.A. Standard Services, conforming to ASTM E 11-81: SPECIFICATIONS A. Washed granular mineral sand particles free of stone, clay, debris, slag, and chloride salts and other corrosive substances number 8 maximum particles size, low moisture. B. The pH of the water solution containing the material must be approximately neutral (pH7). C. Deliver in minimum of 100 tons. Sieve Designation: Percent by Weight Passing: 8 100 30 20-50 80 0-2
