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Fi, <br /> - March 17, 2005 <br /> NOA Project Number: E05008A <br /> 9. <br /> -Soil B ori2g Log for P-6. <br /> Depth Interval (ft)-_- _. Soil Type <br /> Unified'Soil Classification <br /> 0-1.5 Medium brown,moist;clay with fine to medium' CL <br /> - <br /> .1.5-3.0 light brown,moist,c I ayey silt with.some sand l4� <br /> Table 10, <br /> Soil Borink Log for P-7. <br /> Depth Interval (ft)-s Soil Type - -Unified Soil Classification <br /> 0-0.5 Medium light brown,moist;silty fine to medium, 5M <br /> sand- _. .. <br /> D.5-3.0 Medium dark brown,moist,clayey silt with some IML. <br /> . <br /> sand -- _ <br /> 5.4 Discussion of Soil Lithology T <br /> A visual inspection of the shallow soils from ori-site drilling indicates Some potential for satisfactory <br /> percolation:=A percolation test is the best-method to determine-the'suitability,of the soils. Please <br /> see the next section for percolation test results. Generally,speaking, gravelly soils have much greater <br /> potential for percolationthan fide-grained soils <br /> {{ <br /> ..__ Z <br /> 6.0 PERCOLATION-TEST INFORMATION, <br /> -6.1 Percolation Test Locations <br /> _A site map indicating the locations.of the percolation test holes is included-as Plate 1 of.-this report. <br /> .6.2 Number of Percolation Tests _. <br /> ri �Oine shallow percolation test was conducted on each proposed parcel of the Site, for_a total of seven <br /> - shallow percolation tests. <br /> 6.3 Boring Preparation an&Presaturation <br /> FillThe soil borings were advanced on the Site with a hand augur on February.23, 2005. <br /> A 1.5-inch diameter-PVC pipe with perforations'on the bottom was used to measure the drop of <br /> water in the percolation test boring. Approximately 2 inches of"pea gravel" were placed in the <br /> 9 <br />