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40 <br />• <br />provide a dry working. surface. The excavation shall be kept dry until the <br />work to be built or placed therein has been completed as specified. <br />Dewatering shall be done in a manner that will not cause sloughing or <br />caving of the excavation walls. Water from said dewatcring shall be <br />disposed of in a manner as will not result in violations of State water <br />quality standards in receiving waters, nor cause irtlury to public health nor <br />to public or private property, nor to the work completed or in progress. <br />Any and all damage caused by dewatcring shall be promptly repaired by <br />the Contractor at no cost to the Owner. The receiving point for water from <br />said operation shall be approved by the applicable regulatory agency and <br />the Engineer. The Contractor is responsible for obtaining all required <br />permits and any other approval necessary. <br />REMOVAL OF MUCK, ROCK AND OTHER UNSUITABLE MATERIAL <br />+ A. All muck. rock , clay, marl, gravel, boulders, heterogeneous fill material <br />and any other organic or unsuitable "materials of excavation" encountered <br />under pavement areas, structures and utilities shall be excavated and <br />removed. Also any "unforeseen obstacles" such as buried trees or timbers, <br />abandoned utilities, metal objects, concrete masses, or any other type of <br />debris encountered shall be removed. <br />B. Stripping shall be accomplished to clean in-place sand or other suitable <br />material as approved by the Engineer. Removal of unsuitable material <br />within areas which are to receive footings, slabs or other foundations shall <br />be completed for the full area under such structures and to ten feet <br />minimum outside the maximum perimeter. Where pavement is to be <br />placed, said removal shall include all area under the surface and extend to <br />the 6lllside of shoulders and under sidewalks and bike paths, oras directed <br />by the Engineer. <br />C. All roots, stumps, logy, hunts, timbers, boulders, or any material which is <br />not suitable for backfill material shall be removed from the rile promptly <br />rind excavated and disposed of by the Contractor at his expense. <br />D. All "materials of excavation" and "unforeseen obstacles" will he <br />considered as incidental to construction tin(] no additional con►pcnsation <br />will be allowed. <br />ROW <br />