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Soil Suitability /Nitrate Loading Study Irerracon <br />Munsch Property ■ Lodi, California <br />January 7, 2022 ■ Terracon Project No. NA217092 <br />level. Parent material consists of alluvium derived from granitic rock sources. Typically, the <br />surface layer is grayish brown fine sandy loam about 19 inches thick. The subsoil is grayish brown, <br />brown and pale brown fine sandy loam about 26 inches thick. The substratum to a depth of 60 <br />inches is a pale brown fine sandy loam. Few limitations affect the use of this unit for homesite <br />development. <br />1.5.1 Soil Boring Locations <br />Three percolation test borings P1, P2, P3 were advanced in the vicinity of the proposed leach <br />field. Below are the approximate coordinates for the tests. <br />Percolation Test <br />Latitude <br />Longitude <br />Pi <br />38.1267562 <br />-121.3268059 <br />P2 <br />38.1268169 <br />-121.3268097 <br />P3 <br />38.1268755 <br />-121.3268162 <br />1.5.2 Soil Boring Dimensions <br />Three borings were advanced using a hand auger with a 4 -inch diameter auger to 3' (P1), 3.5' <br />(P2), and 8.0' (P3) feet bgs. <br />1.5.3 Soil Lithology Observed <br />The following table below is based on the soils encountered in our soil profile boring P3 which <br />was advanced to 8.0 feet bgs. <br />Table 5. <br />Summary of Soil Lithology <br />Boring <br />Depth Interval (ft) <br />Soil Type <br />Unified Soil <br />Classification <br />0-1 <br />Silty sand, Dark Brown, <br />SM <br />Fine Grain <br />P1 <br />- --... ....... <br />0-3 <br />Silty Sand, Dark Brown, <br />SM <br />Fine Grain <br />0-1 <br />Silty Sand, Dark Brown, <br />SM <br />Brown, Fine Grain <br />P2....... <br />.... -- <br />1-3.5 <br />Silty Sand, Dark Brown, <br />SM <br />Fine Grain <br />0-1 <br />Silty Sand, Dark Brown, <br />SM <br />Brown, Fine Grain <br />P3 <br />__...._._ <br />1-3 <br />Silty Sand, Dark Brown, <br />SM <br />Fine Grain <br />Responsive ■ Resourceful ■ Reliable 9 <br />