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Contaminant Level (MCL) set by the US EPA for nitrate is 10 mg/L-N; the MCL for DBCP is 0.2 ug/L. On-Site Wells No wells are located on the Site. The residences receive municipal water service. No well permits were identified for the Site address from among the files of the San Joaquin County Environmental Health Department. Water Sample Because no well is located on the Site, no water sample was collected as part of this investigation. Soil Profile and Geologic Information The Site is depicted on the Preliminary geologic map showing Quaternary deposits of the Lodi quadrangle, California (Marchand and Atwater, 1979). The Site is depicted within a map unit of Holocene alluvium. Holocene alluvium is described as "channel, levee, and floodplain deposits; chiefly silt and clay with fine sand along principal drainageways" (Plate 11). The surface and near surface soils located at the Site are reported by the USDA Web Soil Survey to be composed of Sailboat silt loam (Plate 12) (USDA, 2019). The table below presents some selected properties of this soil: Table 1. Selected Properties of On-Site Soils (USDA, 1992) Soil Name Depth Unified Soil Salinity Soil Perme- Septic tank and Map /cm Reaction ability absorption Symbol (in) Classification mmhos pH (in/hr) fields Sailboat silt 0-8: Silt loam; CL-ML, ML <2 6.1-7.3 0.6-2.0 Severe: loam, 8-23: Stratified sandy loam to <2 6.6-7.8 0.2-0.6 peres slowly drained, silty clay loam; CL-ML, 0-2% CL <2 7.4-8.4 0.2-0.6 slopes, 23-61: Stratified sandy clay 234 loam to silty clay loam; CL Note:The table descriptions do not necessarily reflect site-specific soil properties. See description of the map unit for composition and behavior characteristics of the map unit. Soil Borings On May 22, 2019, Live Oak excavated two shallow soil borings on the Site for the purpose of conducting percolation tests. The borings were excavated near the existing LOGE 1926a Page 4