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content is within the limits specified above, or the material shall be removed <br />from the embankment. <br />4. If, in the opinion of the Engineer, the compacted earthfill material has a <br />water content less than allowed above, water shall be added to the <br />uncompacted earthfill, and the earthfill shall be worked with a disk or other <br />suitable equipment to distribute the water uniformly throughout the <br />uncompacted layer. <br />5. Compacted earth material that has a water content or dry density which does <br />not meet the limits specified above, shall be reworked and rerolled, as <br />directed by the Engineer, to obtain the water content and dry density <br />specified for compacted earthfill. <br />6. At locations and at such times as determined by the Engineer, the Contractor <br />shall excavate test pits in previously compacted earthfill for the purpose of <br />obtaining samples of previously compacted earthfill or for determining <br />whether the earthfill contains unbonded layers of earthfil I or unblended <br />earthfill materials. Such test pits shall be in accordance with Section 31 23 20. <br />3.3 SPECIALLY COMPACTED EARTHFILL IN LINER EMBANKMENT <br />A. LOCATIONS OF SPECIALLY COMPACTED EARTH FILL <br />Specially compacted earthfill will be required at the following locations: <br />1. Earthfill in liner embankment placed and compacted in depressions and <br />irregularities in foundation surfaces where designated by the Engineer. <br />2. Earthfill material locations outside the limits of the liner embankment where <br />designated by the Engineer. <br />B. PLACING <br />1. Material used in specially compacted earthfill shall conform to Zone I material <br />required for earthfill in liner embankment in Section 3105 13: Provided, all <br />roots, debris, and cobbles of greater than 1 inch in maximum dimension are <br />removed from the material and are not placed in specially compacted earthfill. <br />2. Specially compacted earthfill material shall be placed in accordance with the <br />applicable provisions this specification: Provided: That earthfill material to be <br />specially compacted may require placement in layers thinner than those specified <br />for roller compaction of earthfill material to obtain the desired compaction with <br />the equipment used. <br />3. Where the foundation or compacted surface of any layer is too smooth to bond <br />properly with the succeeding layer, it shall be scarified or otherwise roughened to <br />provide a satisfactory bonding surface before the next layer of earthfill material <br />is placed. <br />C. COMPACTING <br />When each layer of material has been conditioned to have the required water content, <br />it shall be compacted by special rollers, mechanical tampers, or by other approved <br />methods. All equipment and methods used shall be subject to approval by the <br />NCCI Pit #1 Reservoir Liner - Technical Specifications Fill <br />31 23 23 -11 <br />