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+i.+'i??r iJ'- ..??...?. ?.. ?. .... .Y+.wo.•,w+...•..+^.•+,-r.w.•..?e-. o..nk......._Y..«--.r.wY.-? ...«.....w.. .-....ter... >-.nM <br />r <br />Page 2 #120-3932 <br />into the soil by a 140 lb weight falling 30". After an initial set of <br />6", the number of blows required to drive the sampler an additional 12" <br />is known as the penetration resistance or N value. The N value is an <br />index of the relative density of cohesionless soils and the consistency <br />of cohesive soils. <br />Borings 3, 4 and 5 were put down with a 6" power auger and only disturbed <br />samples were recovered. Because of this method, our determination of the <br />depth and extent of the various layers of soil and the consistency of the <br />cohesive soils are only approximate. <br />As the samples were obtained in the field, they were visually and manually <br />classified by the crew chief in accordance with ASTM: D 2488-69. P.epre- <br /> <br /> <br />tf <br />F. - w <br />F <br />F 1. <br /> <br /> <br />sentative portions of all samples were then returned to the laboratory for <br />further examination and for verification of the field classification. Logs <br />of the borings indicating the depth and identification of the various strata, <br />the N value, water level information and pertinent information regarding <br />the method of maintaining and advancing the drill holes are attached. <br />Charts illustrating the soil classification procedure, the descriptive <br />terminology and symbols used on the boring logs are also attached. <br />SITE AND SOIL CONDITIONS <br />The site is a old sanitary landfill that has been filled so, that the <br />present ground surface is about level or slightly below the grade of the <br />adjacent Highway 8. An, old topographic rap indicates that the majority <br />of the site was a swamp. There was a knoll in the area of the adjacent <br />aiwsV•irM - 1'.i""iCir'?:.e::rL*,ce...t a