Laserfiche WebLink
August 14, 2001 <br /> Job Number:LG01-244 <br /> Page 6 <br /> Table 5a. <br /> Boring log B-1, location behind office. <br /> Depth(feet) Soil <br /> 0-4 Dark brown clay. <br /> 4-5 Hardpan. Brown very dry-hard sandy clay. <br /> 5-6 Brown sandy silty clay. <br /> 6-11.5 Brown silty clay. <br /> 11.5-13 Brown clay sand,easier drilling. <br /> 13-15 Brown sandy clay. <br /> Table 5b. <br /> Boring log B-2, location behind house (B-2). <br /> Depth(feet) Soil <br /> 0-3 Dark brown clay. <br /> 3-10 Brown sandy clay. <br /> 10-11 Brown clayey sand. <br /> 11-11.5 Brown fine to medium sand with some clay. <br /> The area behind the office structure was evacuated by a 15-foot soil profile boring B-1 <br /> (see Table 5a) and three (3) percolation tests whose bottom depths are 3-feet, 6-feet, and 12-feet. <br /> The area behind the existing home were evaluate by a 11.5-foot deep soil profile boring B-2 (see <br /> Table 5b) and two (2)percolation tests whose bottom depths are 3.5-feet and 1 I-feet. <br /> Each of the five(5) percolation tests were performed adjacent to the exploratory boring. <br /> The percolation test casing used in each test was a 2-inch PVC pipe with holes drilled on the <br /> bottom. Two (2) inches of"pea gravel" was placed in the bottom of holes, the casing was <br /> installed, and about one(1) foot of"pea gravel"was backfilled in the annular space. The <br /> percolation holes were pre-soaked and a short preliminary test was conducted on August 1, 2001 <br /> to determine if a 1-hour or 4-hour test was required. Based on a preliminary test, both a four(4) <br /> hour test and one(1)hour test would be required. Both percolation test holes were pre-soaked <br /> 24-hours prior to the percolation test. <br /> �,..,o <br /> a <br />