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� <br />Everett Housing Aufhoiiry <br />fvlay 16, 2012 <br />� <br />JN 120�0 <br />Page 12 <br />need to remove the (ill lo achieve ihe required compaclion. The following table presents <br />recommended relative compactions for structural fill: <br />Beneath footings, slabs 95'�0 <br />or walk�.vays <br />Fill2d slooes and behind 90'-a <br />reta�nma walls <br />954: for upper t Z inches ot <br />6eneatii pavements su, ,rade; 90°� below Ihal <br />level <br />:":I•�c�e: 7.Iinimum RelaLvc Compaclion is thc ratio, e�pressed in <br />H:rcenta9e5, of the compacted dry ,lensity to Ihe mmcimum dry <br />Uens�ty, as determined in accordance wilh ASTM Tesl <br />Desi9nation D 7557•91 (i,lodified Proc(or�. <br />Slruclural fill that �vill be placed in �-vet �veather should ccnsist ot a coarse, granular soil �vith a silt or <br />clay content of no more than 5 percent. The percentage of particles pzssing ihe No. 200 sieve <br />should be measured from that poriion of soil passing the three•quarter-inch sieve. <br />LIMITATIONS <br />The conciusions and recommendations contained in this report are based on sile conditions as <br />they existed at the time of our exploration and assume that the soil and groundwater conditions <br />encountered in the test borings are representative of subsurface conditions on the site. If the <br />subsurface conditions encountered during construction are signlficantly different from lhose <br />observed in our explorations, we should be advised at ence so that we can revio�v ihese conditions <br />and reconsider our recommendations where necessary. Unanlicipated soil conditions are <br />commonly encountered on construction sites and cannot be fully anticipated by merely taking soil <br />samples in te�t 5orings. Subsuriace conditions can also vary between exploration locations. Such <br />unexpected connitions frequently require making additional expenditures lo atlain a properly <br />constructed project. il is recommended that the owner consider providing a contingency (und to <br />accommodate such potential extra costs and risks. This is a standard recommendation for all <br />projects. <br />This report has been prepared for the exclusive use of the Everetl Housing Authoriry and its <br />representalives, for specitic application to this pro)ec� and site. Our recommendations and <br />conclusions are based on observed site materials and engineering analyses. Our conclusions and <br />recommendations are professional opinions derived ir, accordance with current standards o( <br />practice within the scope of our services and wilhin budget and time conslraints. No warranty is <br />expressed or implied. The scope o` our services does not include services related o construclion <br />safely precaulions, and our recommendations are not intended to direct the contrac'or's methods, <br />techniques, sequences, or procedures, except as specifically described in our report for <br />consideration in design. Our services also do not include assessing or minimizing the potential for <br />biological hazards, such as mold, bacteria, mildew and fungi in either the existing or proposed site <br />development. <br />GEOTECH CONSULTANTS,L'�IC <br />