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• Table 2. Groundwater Chemical Analytical Data <br /> Well Date TPHG Benzene Toluene Ethylbenzene Xylene <br /> NoSampled ----------------------------- ug/l ------------------------------ <br /> T-3 <br /> ----------------------------- <br /> T3 3/28/96 ND ND ND ND ND <br /> T-3 9/23/96 ND ND ND ND ND <br /> BLANK 3/28/96 ND ND ND ND ND <br /> ND- None detected NA - No Data ug/I - micrograms per liter <br /> All Resna data from 1/17/88 to 10/11/93 <br /> Discussion <br /> Contaminants were not detected in any well during this sampling event <br /> A relatively slow groundwater movement is inferred from the groundwater <br /> measurement data Overall site groundwater movement is to the north and is <br /> consistent with historic groundwater flow mapping This chemical data indicates in <br /> our opinion, that dissolved contaminants have not migrated from the immediate area <br /> of the former tank excavation <br />• Conclusions and Recommendations <br /> The continuation of quarterly groundwater monitoring program is recommended for <br /> this site <br /> Limitations <br /> This report has been prepared for the specifically for the Tracy Public School Bus <br /> Facility site, and was done according to the State and local agency suggested guidance <br /> documents for these investigations The interpretations, conclusions and <br /> recommendations made herein are based on the data and analysis for the soil and <br /> water samples collected on-site and should be reviewed in the context of the whole <br /> report Please note that reports of contamination must be submitted to the agencies <br /> in a timely manner Wright Environmental Services, Inc is not responsible for <br /> errors in laboratory analysis and reporting, or for information withheld during the <br /> course of the study <br /> i <br /> Tracy High Project No 4129 Page 3 <br />