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Coulson Excavating Company - Bonser Gravel Pit Exhibit E QUALITY ASSURANCE The quality assurance plan consists of field procedures and tests designed to monitor and document liner construction procedure and soil moisture content during the compaction process. At the beginning of a liner installation work day, part I of the daily log form is to be filled out completely. Part II of the daily log form is to be completed throughout the day. Part II should include information such as start and end times for work tasks, changes in weather, changes in personnel as well as the following information: In order to insure that the borrow material is consistently suitable for liner material, the material properties are to be tested once for each of the 23.3-arce areas. The tests will be as listed in the following table: Parameter Test Method Minimum Testing Frequency Percent Fines ASTM D1140 One per 23.3-acre area Percent Gravel ASTM D422 One per 23.3-acre area Liquid and Plastic Limits ASTM D4318 One per 23.3-acre azea Standard Proctor ASTM D698 One per 23.3-acre area Following application of a loose lift of liner material, the average moisture content will be measured in the field by ASTM method D 4643-93. Soil samples are to betaken at a density of 8 per 2 acres of liner area. The samples are to betaken by driving a 1.5 in. tube into the Bound to a depth of 1 ft. The tube is then pulled and the sample put into a plastic zip lock bag. The general location of the sample is recorded on the moisture sample form given at the end of this section. After the moisture content is measured for each of the eight samples, the numeric average is taken and recorded in the moistwe loss/gain calculation sheet. The average moisture content is then compared to the optimum moisture content. If the average field measurement is greater than optimum, then the soil will need to dry. The amoum of drying time can be approximated by referencing the tables in Appendix II. If the average field measurement is less than optimum, then the soil will need to be wetted. The amount of water to be added to raise the moisture content by 1% should have been calculated in the daily log form. If the soil is 2% dry of optimum than add double the amount given in the daily log form. Water is to be applied evenly over the entve liner surface. Liner construction should be performed during months when there is no frost in the ground. This will allow lifts to dry properly as well as preclude freeze thaw action that can lead to desiccation cracking.