Laserfiche WebLink
TPH due to insufficient volume obtained from the boring. Table II summarizes <br /> the results of the laboratory analysis on the groundwater samples. Detailed <br /> laboratory results with QA/QC documentation are provided in Appendix IX. <br /> TABLE III <br /> SUMMARY OF GROUNDWATER ANALYTICAL RESULTS <br /> Sample <br /> EPA Method 8015M EPA Metho 8260 <br /> Number TPH as Gasoline TPH as Diesel (VOCs) <br /> (mg11) (mg11) (1+811) <br /> B3-W ND NA ND <br /> MW1-W ND ND15 Benzene <br /> ' 9 sec-Butylbenzene <br /> 0.5 cis-1,2-Dichloroethene <br /> 0.6 n-propylbenzene <br /> 2.9 1,2,4-Trimethylbenzene <br /> MW2-W 0.7 0.7 Q Benzene <br /> 1.0 n-Butylbenzene <br /> 3.4 sec-Burylbenzene <br /> 1.6 cis-1,2-Dichloroethene <br /> 1.0 n-propylbenzene <br /> 2.0 1,2,4-Trimethylbenzene <br /> MW3-W ND 0.7 ND <br /> ' Note: ND = Not Detected at Method Detection Limits <br /> NA = Not Analyzed <br /> Detection Limits EPA Method 8015M = 0.4 mg/1 for diesel <br /> EPA Method 8260 = 0.5 to 1.5 ug/l, depending on analyte <br /> 3� <br /> 6.0 PHASE II FIELD INVESTIGATION RESULTS <br /> ' 6.1 Geophysical Survey <br /> ' The geophysical survey conducted by Norcal did not detect any evidence of USTs <br /> onsite. The boring locations were cleared from detectable underground utilities <br /> and previously marked locations were adjusted accordingly per the results of the <br /> ' survey. <br /> 6.2 Soils Encountered Underneath the Subject Property <br /> The soils encountered in the borings consist of fine grained sediments such as <br /> ' clay, silt, silty fine sand and sandy silt. Vertical and horizontal changes in the <br /> sediments were observed to occur between the borings. <br /> CRC Environmental Risk Management,Inc. Project N 2100-250-2 <br /> American Savings Bank 222 North E1 Dorado Street <br /> November 3, 1995 Stockton,California <br /> I1 <br />