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Geomatrix <br /> TABLE 2 <br /> SUMMARY OF SOIL SAMPLE ANALYTICAL RESULTS FOR METALS t <br /> TAOC Tracy Gravel Pits <br /> Tracy, California <br /> Concentrations in milligrams per kilogram (mg/kg) <br /> Sample <br /> Sample Sample Depth Total Molyb - <br /> Name Date (ft bgs)2 Antimony Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead denum Nickel Selenium Silver Thallimn Vanadium Zinc Mercury <br /> GMX-24 08/22/05 2 . 0 <2 . 03 4 . 0 4 150 <0. 50 1 .3 31 10 24 6.9 < L0 36 <2 . 0 < 1 . 0 < 1 . 0 33 42 <0 . 050 <br /> 4 . 5 <2. 0 4 . 2 190 <0 . 50 1 .4 34 12 29 8 . 1 < 1 . 0 44 <2 . 0 < 1 . 0 < 1 . 0 32 46 <0 . 050 <br /> GMX -31 08/23/05 1 . 5 <2 . 0 4 .7 160 <0 . 50 1 .3 28 9 . 6 73 7.9 < 1 . 0 35 <2 . 0 < 1 . 0 <-I- , O 25 44 0 .055 <br /> 4 .5 <2 . 0 4 .4 160 <0. 50 1 .5 34 10 25 7.7 < 1 . 0 43 <2 . 0 < 1 . 0 < 1 . 0 33 40 0.050 <br /> GMX -32 08/23/05 1 . 0 <2 . 0 4 .3 170 <0. 50 1 .3 30 9 . 8 24 7. 1 < 1 . 0 36 <2 . 0 < 1 . 0 < 1 . 0 33 38 <0 . 050 <br /> 5 . 0 <2 . 0 4 . 5 130 <0 . 50 1 .3 26 9 . 2 23 6.4 < 1 . 0 31 <2 . 0 < 1 . 0 < 1 . 0 35 39 0.059 <br /> GMX-33 08/23 /05 1 . 5 <2 . 0 5 . 2 170 <0 .50 1 . 6 30 11 28 8 . 3 < I . 0 38 <2 . 0 < 1 . 0 < 1 . 0 30 49 <0 .050 <br /> 4. 5 <2 . 0 4 .2 190 1 <0 . 50 1 .3 1 29 10 24 6.8 < L0 35 <2 . 0 < 1 . 0 < 1 . 0 29 40 <0 . 050 <br /> Background Concentrations of Elements 0 , 36 - 0 ,42 U - 43 324 - 379 0 .25 - 0. 64 0 . 05 - 0 . 73 26 - 49 4 . 3 - 8 . 8 13 , 7 - 24 ,4 213 - 27A 0 , 6 - 2 , 2 1 12 - 41 0 . 015 - 0 . 140 0. 20 - 0 .41 0 ,28 - 0434 55 - 58 122 - 182 0 , 25 - 0 ,27 <br /> Notes : <br /> 1 . Soil samples collected by Geomatrix Consultants, Inc . , and analyzed by Severn Trent Laboratories (STL San Francisco), Inc. , <br /> of Pleasanton , California for Metals using EPA Method 6010B and 7471 A . <br /> 2 . ft bgs = feet below ground surface. <br /> 3 . < = Analyte was not detected at or above the laboratory reporting limit indicated . <br /> 4. Bolded values indicate the analyte was detected at the concentration indicated . <br /> 5 . From Bradford , et . al 1996, Background Concentrations of Trace and Major Elements in California Soils. <br /> Range shows the values of two soils from San Joaquin County. <br /> 1 :\Doc_Safe\7000s\7066.001 \Reports\2005 Soil Investigation and Well Survey\2 Tables\Summary Tables Gravel Pits-Tables 1 -7 Page I of <br />