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10 April 2002 <br /> AGE-NC Project No. 02-0912 <br /> Page 3 of 4 <br /> ANALYTICAL METHODS <br /> The collected soil and groundwater samples were transported under chain-of-custody to a California <br /> Department of Health Services (DHS)-certified laboratory for analysis for: <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015M; and <br /> • Volatile aromatic compounds - benzene, toluene, ethyl benzene and xylene (BTEX) with <br /> methyl tertiary-butyl ether(MTBE) - in accordance with Method SW846 8021; and <br /> In addition, the ground water samples were analyzed for volatile organic compounds (VOCs) in <br /> accordance with EPA Method 8260 Modified. <br /> FINDINGS <br /> A total of three soil samples and three grab ground water samples were submitted to CTEL for <br /> analysis as noted above. No target analytes were detected in the analyzed soil and ground water <br /> samples. The analytical results are summarized in Table 1. A copy of the laboratory report (CTEL <br /> Laboratory IDs 0204-019-1 through 0204-019-3, 0204-019-5, 0204-019-9 and 0204-019-13) is <br /> included in Appendix A. <br /> RECOMMENDATIONS <br /> Based upon non-detectable concentrations of contaminants in soil and ground water samples,AGE <br /> recommends that no further action be taken at the site. <br /> LIMITATIONS <br /> Our professional services were performed using that degree of care and skill ordinarily exercised by <br /> environmental consultants practicing in this or similar localities. The findings were based mainly <br /> upon analytical results provided by an independent laboratory. Evaluation of the <br /> geologic/hydrogeologic conditions at the site for the purpose of this investigation was made from <br /> a limited number of available data points(i.e. soil borings,soil samples,ground water samples)and <br /> subsurface conditions may vary away from these data points. No other warranty, expressed or <br /> implied, is made as to the professional interpetations,opinions and recommendations contained in <br /> this report. <br /> Advanced GeoEnvironmewal,Ine. <br />