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24,000.6. BACKFILLING: Backfill on all pipe shall be compacted with a hand <br />operated mechanical tamper to a point 1 foot above the pipe in 6 inch lifts. <br />The remainder of the trench shall be backfilled in one foot lifts to the top <br />of the trench. The backfill material shall be compacted to 95% of the stand- <br />ard moisture density relationship of soil (ASTM 0698-70) below the top three <br />feet of the trench. The top three feet of the trench (exclusive of street <br />surface section) shall be compacted tc 100% density. <br />Any settlement of street surface in excess of one W') inch as measured by a <br />ten foot straight -edge within the warranty period shall be considered failure <br />j of the mechanical compaction and the Contractor shall be required to repair <br />such settlement with no additional payment therefor. <br />24,000.8. METHOD OF MEASUREMENT: All sanitary sewer trench excavation will <br />he measured it linear feet of trench according to the depth classifications <br />outlined on the Proposal. All storm sewer trench excavation will be measured <br />by the lineal foot without regard to depth classification. Cont'-actor's <br />R attention is directed to Paragraph 24,000.8.C. of the General Requirements. <br />to <br />IM <br />It <br />04 <br />1t <br />r►-SA41c <br />Co pvright 1985 <br />Sonestroo, Rosene, Anderlik <br />b Associates, Inc. <br />24,000-4 <br />