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Me,rila and Associates <br />STS Project 93492 <br />December 19, 1984 <br />-7- <br />RECOMMENDATIONS <br />Earthwork <br />We recommend that all topsoil, existing fill, buried topsoils and soft <br />or firm silty clays be excavated within the area of the proposed <br />building and pavements. No structural fill or foundation concrete <br />should be placed over, or in, existing fill deposits, organic clayel <br />topsoils, or clays which are soft to firm in consistency. Unsuitable <br />soil deposits were encountered at the boring locations to the following <br />depths. <br />Boring No. <br />Depth <br />Elevation <br />17 <br />7.0 ft <br />925.2 <br />18 <br />4.0 ft <br />923.0 <br />19 <br />12.0 ft <br />914.3 <br />20 <br />9.0 ft <br />914.4 <br />21 <br />7.0 ft <br />913.E <br />21 <br />8.0 ft <br />914.7 <br />23 <br />9.5 ft <br />912.0 <br />These depths represent an estima.ted minimum depth at which suitable <br />base materials would be reached in the areas of these borings. Because <br />of the variable nature of the soils at this site, excavation to <br />greater or lesser depths in other areas may be necessary. <br />... <br />