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1 ht <br /> SQuality Assurance/Quality Control Plan on file with the PHS/EHD A minimum of four casing <br /> volumes of water were removed from each sampled well A dedicated disposable bailer was used <br /> to collect each water sample Purge water was contained in labeled DOT approved 55 gallon <br /> drums and stored on site pending laboratory analysis and proper disposal Field parameters and <br /> purged volumes are shown on well purge logs included in Attachment I <br /> LABORATORY ANALYSIS <br /> i <br /> i <br /> Groundwater samples collected from the monitoring wells and the purge water sample were <br /> placed on ice and transported under chain-of-custody protocol to state-certified Argon Mobile <br /> Labs in Ceres, California (DHS Certification No 1873) Monitoring well samples were analyzed <br /> for TPHg, BTEX, and methyl tertiary butyl ether (MTBE) by EPA methods 8015 modified and <br /> 8020, and for total petroleum hydrocarbons as diesel (TPHd) by EPA method 8015 Analytical <br /> results for groundwater are summarized in Table 2 Laboratory data sheets and chain of custody <br /> documentation are included as Attachment 11 <br /> Please contact our office at (209) 579-2221 if you have any questions or require additional <br /> information <br /> Respectfully Submitted, <br /> Smith Technology Corporation <br /> Drew Van Allen <br /> Staff Scientist <br /> i <br /> Tom Lutterman <br /> Project Geologist oQ�'Of ESSlO�,l <br /> JEAN NN E <br /> HOMSEY 2 <br /> Jeanne Homsey, P E w <br /> o� <br /> CA Registered Engineer C47410 Exp No. C047410 <br /> ��r' <br /> AttachmentsJ'� CIVIL \Q' <br /> OF <br /> 943MQUARnY\4QR 19%DOC 3 <br /> r <br /> SIY�TH <br />