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Quarterly Momtonng Report <br /> Heinz Facility,757 E I Ith St ,Tracy <br /> Page 2 <br /> The water samples collected from wells MW2 and MW3 on January 13 were analyzed for <br /> benzene, toluene, ethylbenzene and xylenes (BTEX) by EPA method 8020, total petroleum <br /> hydrocarbons as gasoline (TPHG) and total petroleum hydrocarbons as diesel (TPHD) by <br /> modified EPA method 8015 Dissolved petroleum hydrocarbons were not detected at or above <br /> method detection limits In monitoring wells MW2 or MW3 Analytical data is presented on <br /> Table 2 The laboratory data sheets, chain-of-custody, and monitoring data are included as <br /> Attachment 2 <br /> Petroleum hydrocarbon analytes have not been detected in well MW3 since July 10, 1991 <br /> Therefore RESNA recommends, on behalf of our client, a cessation of monitoring/sampling of <br /> well MW3 We also recommend a reduction of monitoring/sampling to a yearly schedule for <br /> monitoring well MW2 <br /> On January 28, 1993, RESNA personnel collected ten 4 1 composite samples of soil removed <br /> from the diesel tank pit excavation This soil is stockpiled at BJJ Trucking's Stockton facility <br /> The soil samples were analyzed for TPHD using EPA method 8015 Analytical results are <br /> summarized In Table 3 Laboratory data sheets and chain-of-custody documentation are included <br /> . in Attachment 2 <br /> If you have any questions or comments please contact our Escalon office at 2091838-3507 <br /> Respectfully, <br /> RESNA Industries Inc <br /> —)-q azeu � <br /> Marcie R McCabe <br /> Staff Geologist <br /> Greg P Stahl <br /> CA Registered Geologist No 5032 <br /> MRM/gk <br /> Attachments <br /> PC Nick Kosta, BJJ Trucking <br /> RWQCB - Central Valley Region, Elizabeth Thayer <br /> 1QR1993 FNL <br />