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Soil Suitability Study Page 9 <br /> Sandlot Farms,260 E.Linne Rd.,Tracy CA <br /> ' Project No. 692.1 <br /> September 18,2014 <br /> 8.0 CONCLUSIONS AND RECOMMENDATIONS <br /> 1. A percolation test performed by North American Testing Service was conducted on <br /> each of the 17 proposed lots. Based on the percolation test results and the soil profile, r �- <br /> we conclude that the shallow soil percolation characteristics are suitable for standard <br /> design septic sewage systems. <br /> ' 2. The nitrate as nitrogen level found in a sample from the onsite domestic water well <br /> was determined by laboratory analysis to be 40 percent of the MCL limit of 1W- <br /> The assumption is made that s sample is reasonably representative of the entire i <br /> 724-acre site. Altho# no nitr ing loading calculations were made for this study, <br /> the groundwater ifnpact from construction of new septic systems seems quite unlikely <br /> t to increase the nitrate concentration sufficiently to exceed the MCL limit. <br /> 1 <br /> 3. The groundwater water well sample contains no detectable DBC-P. <br /> 8.2 Recommendations <br /> ' The results of this investigation suggest that standard septic design is adequate for residential <br /> construction on the proposed 17 parcels. <br /> 2937 Veneman Ave.,#B240 Geo-Phase Environmental Inc. Phone: (209)569-0293 <br /> Modesto,CA 95356 Fax: (209)569-0295 <br />