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1.5 CODES, ORDINANCES, AND STATUTES: The Constructor shall be familiar <br /> with, and comply with, all applicable codes, ordinances, statutes, and bear sole <br /> responsibility for the penalties imposed for noncompliance. <br /> 1.6 TOLERANCES: All material limits shall be constructed within a tolerance of 0.1 <br /> foot except where dimensions or grades are shown or specified as minimum. All <br /> grading shall be performed to maintain slopes as shown. <br /> 2. MATERIALS <br /> 2.1 EMBANKEMNT FILL: Embankment fill shall consist of on-site material free from <br /> roots, organic matter, debris, and other deleterious material. Peat and organic <br /> clay are not acceptable as embankment fill. Individual particles up to six inches in <br /> diameter are acceptable. When compacted, embankment fill shall result in a fill <br /> without visible voids between particles, and all particles larger than inch shall <br /> be completely surrounded by a continuous soil matrix. Embankment fill is <br /> anticipated to come from the mining operation stockpiles. <br /> Specifically, embankment fill shall be borrowed from within the footprint of the <br /> impoundment as shown and shall have a USCS classification of SM, SC or CL. <br /> 2.2 COMPACTION EQUIPMENT: Provide compaction, watering, and aerating <br /> equipment of suitable type to achieve the specified compaction moisture content <br /> and relative compaction. <br /> 3. EXECUTION <br /> 3.1 SUBGRADE PREPARATION <br /> 3.1.1 The entire surface to be covered with embankment shall be grubbed and <br /> stripped of all grass,vegetation,topsoil, rubbish, or other unsuitable <br /> materials before any embankment fill is placed. <br /> A. Topsoil shall be stockpiled or placed as designated. <br /> B. Other grubbed and stripped materials shall be removed as spoil. <br /> 3.1.2 Existing mine highwall slopes shall be "benched"to prevent the <br /> development of a potential sliding surface. <br /> 3.1.3 Stripped or excavated surfaces on which embankment fill is to be placed <br /> shall be compacted to the required density of the embankment prior to any <br /> fill being placed. <br /> 3.1.4 Prior to placement of fill, subgrade shall be scarified with a disc or similar <br /> equipment and moisture conditioned to facilitate bonding with the new fill. <br /> 3.1.5 Surfaces to receive fill shall not have ponded water, snow or ice, nor be <br /> desiccated or cracked. <br /> 02200-2 <br />