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v <br /> ASSOC , A TES INC . • <br /> SAMPLING ACTIVITIES <br /> Groundwater samples were collected from <br /> stabilization of h wells <br /> P Ysical parameters MW-1' MW-2 and MW-3 after <br /> logs and field notes are contained ' �H' electrical conductive Purging on ice and m Attachment 1. t3' and temperature , g g and <br /> transported under chain-Of-custody Collected groundwater samples Well page <br /> Environmental Labs (FLAP#2119 Protocol to Ples were <br /> Samples were State-certified Placed <br /> anaiyzedforprioriExcelchem <br /> Analyses of the samples from Priority metals. <br /> were not detected excludingwells MW-1 MW-2 <br /> beryllium. ' and MW-3 for all metals analyzed for <br /> Analysis of the samples from wells <br /> wells at concentrations of 4.3, 4.3, and q lj MW-2' and MW_ <br /> of beryllium in all 3 detected beryllium in all three <br /> three wells slightly exceeded the MCL for berylliumThe <br /> detectable concentrations <br /> of 4.0 ppb, <br /> Analytical results are summar;,p a m <br /> documentation are contained n A Table 2 and laboratory re ports Attachment 2. p and chain-of-custody <br /> During this monitorin <br /> defects. g event, the wells were found to be in good condition with no visible <br /> If you have any questions,please contact us at(209) 579-2221. <br /> Respectfully submitted, <br /> ATC Associates Inc. <br /> Nathan Christman ` gWCi <br /> 3 �/y;,, <br /> Staff Geologist <br /> . /dl�. <br /> �ewne Homsc <br /> Y, P.E. 5 ' <br /> CA Registered Civil En <br /> gineer No. C 47410 <br /> T <br /> � :Fs r <br /> Attachments ` rIF .`. <br /> cc: Margaret Lagorio, San Joaquin Co. Environmental Health Department <br /> W A625801reports\3rdgtr03.doc <br /> 2 <br />