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� <br /> , <br /> General: Unifocmly grade areas within limits of grading under this section, including � <br /> adjacent transition areas. Smooth finished surface within specified tolerances, compact <br /> with uniform levels or slopes between points where elevations are indicated, or between <br /> such points and existing grades. � <br /> � <br /> Finish surfaces free from irregular surface changes, and as follows: <br /> Lawn or Unpaved Areas: Finish areas to receive topsoil to within not more than � <br /> 0.10' above or below required subgrade elevations. <br /> Walks: Shape surface of areas under walks to line, grade and cross-section, with � <br /> finish surface not more than 0.10' above or below required subgrade elevation. <br /> ' � � � <br /> Compaction: After grading, compact subgrade surfaces to the depth and indicated � <br /> percentage of maximum or relative density for each area classification. <br /> 3.05 BUILDING SLAB DRAINAGE COURSE: <br /> General: Drainage course consists of placement of draina e fill material in la ers of � <br /> 8 � Y <br /> .indicated thickness, over subgrade surface to support concrete building slabs. <br /> Placin�: Place drainage fill material on prepared subgrade in layers of uniform � <br /> thickness, conforming to indicated cross-section and thickness. Maintain optimum <br /> moisture content for compacting material during placement operations. � <br /> When a compacted drainage course is shown to be 6" thick or less, place material in a <br /> single layer. When show� to be mo�e than 6" thick, place material in equa! layers, <br /> except no single layer more than 6" or less than 3" in thickness when compacted. � <br /> 3.06 EROSION CONTROL <br /> Pollution of wetlands, lawns and streams by operation under this contract shall be � <br /> prevented, controlled, and abated in accordance with the rules, regulations and standards <br /> adopted and established by the '�iinnesota Pollution Corttrol Agency and the Elm Creek <br /> Watershed Ylanagement Commission. � <br /> The Contractor shall furnish matecial, labor and equipment foc erosion control measures <br /> as shown on the drawings or ordered by the LA/E and shall provide for the � <br /> . acceptable maintenance thereof during the life of the contract, to effectively prevent <br /> water pollution through the use of berms, dikes, dams, sediment basins, fiber mats, <br /> netting, gravel, mulches, grasses, slope drains, and other erosion control devices or <br /> methods. . � <br /> � EARTHWORK 02200 - 8 <br /> � <br /> � <br />