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J B Terminal, Tracy, California <br /> Third Quarter 1992 Groundwater Monitoring Report <br /> August 27, 1992 <br /> Page 2 <br /> in Table 2 The laboratory data sheets and chain-of-custody documentation are included in <br /> Attachment 2 Laboratory analyses were conducted by RESNA Environmental Laboratories <br /> (former Applied Analytical) Cal EPA, ELAP Certification No 1211 <br /> Based upon historical concentrations for July 1991, the elevated levels of petroleum hydrocarbon <br /> analytes detected in monitoring well MW1 are presumed to be related to the rise in water levels <br /> The petroleum hydrocarbon contamination is confined to the area near the former tank pit and <br /> does not pose a threat to adjacent properties, therefore RESNA Industries recommends <br /> continuing quarterly monitoring and sampling <br /> The next groundwater sampling/monitoring round will occur in October 1992 and a quarterly <br /> monitoring report will be submitted in November <br /> If you have any questions, please call Greg Stahl or myself at 2091838-3507 <br /> Respectfully, <br /> RESNA Industries Inc <br /> Lois Frantz <br /> Staff Geologist <br /> Gregory P Stahl <br /> CA Registered Geologist No 5023 <br /> Attachments Figure 1 Site Location Map <br /> Figure 2 Groundwater Gradient Map <br /> Table 1 Summary of Water Elevations <br /> Table 2 Summary of Laboratory Analysis-Water <br /> Attachment 1 Well Purge Logs <br /> Attachment 2 Laboratory Data Sheets and Chain-of- <br /> Custody Documentation <br /> pc Mr Nick Kosta, Blincoe Trucking <br /> QR082592 FNL <br />