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1 j <br /> y Manteca Unified School District <br /> Soil&Groundwater Investigation Report II <br /> Page: 3 <br /> 2.0 SCOPE OF WORK <br /> On June 26, 2007 M.J. Kloberdanz & Associates drilled three additional soil borings, <br /> borings B-4, B-5, & B-6, to groundwater and collected laboratory soil and groundwater <br /> samples. The borings were drilled within five feet of the previous borings drilled in <br /> December of 2000 (Figure 2). All soil and water samples were non-detect for all <br /> compounds analyzed. PNA analysis was proposed for the water samples and the soil <br /> sample with the highest concentration of diesel. Diesel was not detected in any of the <br /> soil samples and PNA analysis was not conducted on the soil samples. <br /> Table of Laboratory Soil Sample Results (06/26/07) <br /> Sample I.D. Diesel Benzene Toluene E-Benzene Xylenes PNA's <br /> B-4-8' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-4-16' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-4-24' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-4-28' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-4-32' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> ,r B-4-36' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-5-8' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-5-16' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-5-24' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> " B-5-28' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-5-32' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-6-8' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-6-16' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-6-24' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-6-28' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> B-6-32' <1.0 <5.0 <5.0 <5.0 <5.0 NA <br /> V <br /> ND=NON-DETECT Mg/Kg for diesel µg/Kg for BTEX <br /> Table of Laboratory Groundwater Sample Results (06/26/07) <br /> �.r <br /> Sample I.D. Diesel Benzene I Toluene I E-Benzene I Xylenes PNA's <br /> B-4-30'H20 <0.10 <0.3 <0.3 <0.3 <0.6 ND <br /> B-5-28'H20 <0.10 <0.3 <0.3 <0.3 <0.6 ND <br /> y <br /> B-6-28'1120 <0.10 <0.3 <0.3 <0.3 <0.6 ND <br /> ND=NON-DETECT Mg/L for diesel µg/L for BTEX <br /> V <br /> 2.1 Drilling <br /> The soil boring was accomplished using a mobile mounted Geoprobe® Systems drilling <br /> rig, Model 5400, employing the use of a 1.25" or 2" hollow probe rods. All drilling <br /> equipment was thoroughly steam cleaned before drilling began to prevent the <br /> introduction of contamination from off site, and between borings to prevent cross <br /> contamination. <br /> The borings were logged under the direct supervision of a registered geologist using the <br /> Unified Soil Classification System. The color, texture, moisture, plasticity (if applicable), <br /> V <br /> V <br />