Laserfiche WebLink
' 25288 N Cherokee Lane Project No. 2018-00018 Page 13 <br /> t <br /> Table 1 <br /> ' San Joaquin County Soil Survey <br /> Elected Soil Properties of On-Site Soils <br /> ' Soil Name Depth Salinity Soil Perme- Septic tank <br /> and Map Unified Soil Classification Reaction ability absorption <br /> ' Symbol (in) mmhos/cm pH (in/hr) fields <br /> t0-16: Loam; CL-ML,ML <2 5.6- 6.5 0.6-2.0 <br /> 16-26: Clay loam,loam;CL <2 6.1- 7.8 <6.0 <br /> ' San Joaquin Severe: <br /> Complex, cemented pan, <br /> 241 peres slowly. <br /> ' 26-60: Indurated; --- --- --- --- <br /> Note:The table descriptions do not necessarily reflect site-specific soil properties. <br /> 2.2 Mass Transport Soil Properties <br /> ' Layered soils and sediments,such as the fine-grained soil layers and cemented pan reported <br /> for the San Joaquin Complex at the site, typically provide a degree of protection between <br /> ' percolating effluent at the surface and ground water aquifers. Soils of this type do not <br /> typically present a high risk of excessive mass transport of nitrate or other constituents of <br /> concern. <br /> ' 3.0 GROUNDWATER ANALYSIS <br /> 3.1 Regional and Site-Specific Groundwater <br /> The San Joaquin County Flood Control and Water Conservation District Spring 2016 and Fall <br /> ' 2016 groundwater reports were reviewed to determine the groundwater levels near the site. <br /> The Spring 2016 and Fall 2016 maps are the most current official maps available from the <br /> County. According to these maps, (Plates 5 and 6) in Appendix A,groundwater elevation lies <br /> ' approximately -35 to -40 feet below mean sea level (msl). The elevation of the land, as <br /> previously mentioned in Section 1.1, is approximately 60 feet above mean sea level. <br /> Therefore, the depth to groundwater (the difference between the elevation of the site and <br /> ' the elevation of groundwater), ranges between approximately 95 and 100 feet below the <br /> ground surface (bgs), depending on the season. The groundwater in the vicinity of the site <br /> ' appears to flow to the east-southeast toward a cone of depression during Spring 2016 and <br /> northeast during Fall 2016; the gradient is approximately 5 feet per mile and 7.5 feet per <br /> mile in the Spring 2016 and Fall 2016, respectively. <br /> ' Petralogix Engineering,Inc <br /> (209) 00-57Bmellflood,Galt,Ca 95632 <br /> (2091d��6729 <br /> ' w 'petralogix.com it <br />