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2. Zone III fill: 95% maximum dry density or 65% relative <br />density. <br />3. Topsoil: No requirement. <br />b. To determine that the water content and dry density requirements of <br />the compacted earthfill are being met, field and laboratory tests will <br />be made by the testing agency at frequent intervals on samples of <br />compacted material taken at embankment locations determined by <br />the Engineer. Field and laboratory tests will be made by the testing <br />agency in accordance with Section 0140 00. The results of all <br />completed earthwork tests shall be available to the Engineer and <br />Owner as soon as is reasonable. <br />C. Materials not meeting the specified water content or dry density <br />requirements, or any other specified material property, as <br />determined by the tests, shall be reworked until approved results are <br />obtained. If freezing of previously compacted and accepted earthfill <br />has resulted in a decrease in compacted density of the earthfill as <br />determined by the Engineer, the Contractor shall rework or <br />overexcavate and replace the earthfill as directed until approved <br />densities are obtained. Reworking shall include removal, rehandling, <br />reconditioning, rerolling, or combinations of these procedures. <br />2. Water Content Control: <br />a. The optimum water content is defined as "the water content of a soil <br />at which it can be compacted to its laboratory maximum dry density <br />by a given compactive effort." The laboratory maximum dry density <br />in pounds per cubic foot is the maximum dry density obtained from <br />a curve of water content versus dry density for a given compactive <br />effort. <br />b. As far as practicable, the material shall be brought to the proper <br />water content for compaction in the borrow pit or at the site of <br />required excavation before excavation, and the Contractor shall <br />make allowances for water loss during excavation, transportation, <br />and placing operations. <br />C. Supplementary water, if required, shall be added to the material by <br />sprinkling on the earthfill, and each layer of earthfill shall be <br />conditioned by disking or other approved methods so that the water <br />is distributed uniformly throughout the layer. Water applied on a <br />layer of fill shall be accurately controlled in amount so that free <br />water will not appear on the surface during or subsequent to rolling. <br />Should too much water be added to any part of the embankment, so <br />that the material is too wet per specifications, the rolling on that <br />section of the embankment shall be delayed until the moisture <br />NCCI Pit #1 Reservoir Liner - Technical Specifications Fill <br />312323 -8 <br />