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I <br /> • <br /> VAPOR EXTRACTION SYSTEM <br /> The site has been under remediation since July 1997 The weekly readings of the <br /> entering vapor stream are listed on Table 5 and shown on Figure 4 The vapor stream is <br /> slowly falling At present the system is operating properly A total of 38448 pounds of <br /> gasoline has been removed since the beginning of this project Presently about 29 <br /> pounds of gasoline are being removed each day <br /> Conclusions <br /> We will continue to monitor this site The next monitoring event will take place in July <br /> I1998 <br /> Yours truly, <br /> �f' �EREV <br /> S <br /> John Cussen <br /> RG #6506 <br /> . Enclosures <br /> 6 Tables <br /> 4 Figures OF CAL1F�9' <br /> I 1 Laboratory Report and Chain of Custody <br /> 8 Sample Sheets <br /> Cc Mr Roger Liston, Darpetro, Inc <br /> Mr G L Boggs, RWQCB <br /> I <br /> I <br /> i <br /> I <br /> r <br />