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November 16, 2005 <br /> • NOA Project Number: E05120B <br /> The groundwater samples were obtained by bailer,and placed into 1-Liter plastic jugs. The soil <br /> samples were collected into plastic Ziplock bags. The samples were immediately labeled,placed on <br /> ice, and transported under chain of custody to Argon Laboratories in Ceres, California. <br /> 4.4 Grouting of the Borings <br /> The borings were grouted using a mixture of six gallons of potable water per 94 pound sack of <br /> Portland cement. Mike Infuma of the EHD was not present but gave a verbal authorization to <br /> proceed with the grouting of the borings. The grout filled the boreholes to within five feet of the <br /> ground surface. The top five feet of the borehole was filled with soil. <br /> 4.5 Sample Analysis Methods <br /> The three groundwater samples were analyzed for Nitrate as N by EPA Method 300.0,Total <br /> Dissolved Solids (TDS) by EPA Method 160.1, Conductivity by EPA Method 120.1,Total Kjeldahl <br /> Nitrogen (TKN) by EPA Method 351.2, and pH by EPA Method 150.1. The soil samples were <br /> analyzed for Nitrate as N by EPA Method 300.0,TKN by EPA Method 351.2, and pH by EPA <br /> Method SM9045C. <br /> 4.6 Analytical Results <br /> The results of the analysis of the soil and groundwater samples from the three bonngs (Appendix <br /> B) are presented in the following table: <br /> Table 3. Results of Dairy Investigation Analysis—Soil and Groundwater <br /> Constituent Units CA MCL' B-1(GW) B-2(GW) B-3 (GW) B-2-15' B-2-20' <br /> (Soil) (Soil) <br /> Nittate as N ppm 10 1.9 16 15 <1 <1 <br /> TDS ppm 500 N/A 1,800 1,700 N/A N/A <br /> Conductivity umbos/cm 900 11400 2,600 2,600 1230 <br /> A N/A <br /> TKN ppm N/A 3.0 1.1 160 <br /> pH — 6.5- 8.4 7.G 6.9 7.6 8.1 <br /> N/A=Not Analyzed. These was insufficient water in sample B-1 for TDS and TKN analysis. <br /> 9Califomia Code of Regulations,2002,Title 22. <br /> • <br /> 7 <br />