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Soil Suitability&Nitrate Loading Evaluation CTE Job#25-1256G <br /> New Septic Leech Lines <br /> 9490 E Schmeidt Rd <br /> Lodi, California <br /> June 29, 2022 Page 9 of 10 <br /> groundwater level is expected to be at approximately 121 feet depth at the site/vicinity which is <br /> well below the advisable groundwater depth for a typical 42-inch deep dispersion field with <br /> percolation rates indicated. moderately permeable soils (e.g., silty sands) also provide adequate <br /> treatment of the percolating wastewater. <br /> As stated in Section 9.0 above, CTE estimates that the potential nitrate-nitrogen (N) concentration <br /> in groundwater resulting from the new leach field should be below the State of California drinking <br /> water standard of 10 mg/L. <br /> Based on these results, it is our professional opinion that soil conditions are adequate for use of a <br /> conventional septic tank/leach trench sewage disposal system; therefore, an alternative system will <br /> not be required. <br /> 11.0 LIMITATIONS OF INVESTIGATION <br /> The field evaluation and geotechnical analysis presented in this report have been conducted <br /> according to current engineering practice and the standard of care exercised by reputable <br /> geotechnical consultants performing similar tasks in this area. No other warranty, expressed or <br /> implied, is made regarding the conclusions, recommendations and opinions expressed in this <br /> report. <br /> Our conclusions and recommendations are based on an analysis of the observed conditions. <br /> Variations may exist and conditions not observed or described in this report may be encountered <br /> during construction. If conditions different from those described in this report are encountered, <br /> our office should be notified and additional recommendations, if required, will be provided upon <br /> request. <br /> %7C-A L.I N CC <br />