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<br />~J <br />charge facility capacities, shapes and dimensions are found in <br />the Appendix to this report. <br />Specifications to be followed during construction of the sedi- <br />mentation pond are as follows: <br />Excavation <br />During excavation, material suitable for embankment <br />shall be stockpiled in an orderly manner away from <br />the working area. When completed, the excavation shall <br />conform to the lines and grades shown on the drawings <br />and shall present a neat and workmanlike appearance. <br />Embankment <br />Prior to construction of the embankment, the area shall <br />be cleared of all vegetable matter, or other objection- <br />able materials and scarified to a depth of 12". <br />The embankment material shall contain no rocks larger <br />than 6" in diameter and shall contain no organic matter, <br />frozen soil or other deleterious material. The embank- <br />ment shall be carefully placed and compacted by a suit- <br />able mechanical method in eight inch maximum lifts. <br />The compaction in each lift shall be 908 of the maximum <br />dry density, in accordance with ASTM Specification Desig- <br />nation D 698-70. <br />-3- <br />