Laserfiche WebLink
r <br /> March 22, 2004 <br /> NOA Project Number: LE03-392 <br /> Page 6 <br /> 5.3 Soil Lithology Observed and Septic Applicability <br /> Generally, the soil encountered in the borings is similar to the soils reported by the San Joaquin <br /> County Soil Survey for the area(USDA, 1992). Table 3 presents a representative soil log for <br /> both soil borings. <br /> Table 3. <br /> Soil Boring Log <br /> Depth Interval(ft) Soil Type Unified Soil Classification <br /> 0-3 Light brown fine to medium sand with some silt SP <br /> Note:Descriptions are representative of soil conditions encountered in both borings. <br /> 6.0 PERCOLATION TEST INFORMATION <br /> 6.1 Percolation Test Boring Locations <br /> Two percolation tests were performed on March 19, 2004, one test on Parcel 1 and the other on <br /> the Designated Remainder. Both tests were"shallow"percolation tests defined as being between <br /> 3.0 to 3.5 feet in depth. The locations of the percolation tests are indicated on Plate 1. <br /> 6.2 Boring Preparation and Specifications <br /> The shallow percolation.test borings were drilled with a 4-inch diameter hand auger. <br /> A 2-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 /> bottom of the boring, then the PVC pipe was installed on top of the gravel. Several feet of"pea <br /> gravel"were backfilled in the annular space. <br /> 6.3 Presaturation of Borings <br /> Presaturation of the percolation test holes occurred on March 18, 2004. The depth of water used <br /> to presoak was 12 inches above the bottom of the borings. After the 24-hour soak period, the <br /> presaturated holes were found to be intact and dry on Marc 19, 2004. <br /> 6.4 Percolation Test Procedure and Results <br /> Two 4-hour percolation tests were conducted on March 19, 2004 in accordance with the <br /> requirements of EHD. Measurement of the water level during the percolation test was from a <br /> fixed reference point on the PVC casing using an electric well sounder with an depth accuracy of <br /> 11100th foot. All values on the field data sheet (appendix) are in decimal feet. After water drop <br />