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REG 603 UPDATE-8 7/17/92 <br /> i <br /> As directed by San Joaquin County Health a workplan has been <br /> developed to place two down gradient monitoring wells east and <br /> northeast of Mw8, to define the lateral extent of the ground water <br /> plume Initial contact to the landowners has been made and we <br /> are awaiting their requirements prior to obtaining the permission <br /> forms to place the wells on their properties. <br /> 5.0 RECOMMENDATIONS <br /> 1. Perform ground water sampling for gasoline range <br /> hydrocarbons and fecal coliform on a quarterly basis. <br /> 2. Until the REMOX unit is stabilized, no air dilution, <br /> continue weekly adjustments and monthly monitoring, <br /> using the 10S50 PID-GC. <br /> 3 Provide monthly update status reports of vapor <br /> recovery/destruction. <br /> 4. Upon receipt of the Sewer Discharge Permit, install a <br /> ground water recovery system into Mwl and MW3 and treat <br /> . the ground water by tank aeration <br /> 6.0 TIME FRAME <br /> August 15, 1992 UPDATE STATUS REPORT #9-July, 1992 <br /> September, 1992 QUARTERLY GROUND WATER SAMPLING. <br /> 7.0 HEALTH AND SAFETY <br /> This site is being treated as a class D site, normal common sense <br /> .is to be used, see Appendix D, Health and Safety Plan. <br /> 8 0 LIMITATIONS <br /> The conclusion and recommendations presented in this report are <br /> based upon the following- <br /> A The exploratory test borings drilled at the site. <br /> B. The Bouwer and Rice Slug test. <br /> C. The Vapor Extraction Source Test <br /> . D The observations of field personnel <br /> PAGE 12 <br />