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f A <br /> r <br /> NAT <br /> K 14 <br /> oft <br /> I7��ntanite seal was positioned above tie water table, 5 gallons <br /> of potable water was added as llow the backfilledtonitthe e fa <br /> ce with <br /> ,1,110 remaining annular !space w <br /> sisnd/cement slurry. The boring logs/well detail are co <br /> in Appendix Ill . <br /> 3.4 Groundwater Sampling <br /> ell �,W1 was monitored <br /> On May 2, 1990, monitoring win <br /> accordance with WaterWork' s Groundwater Monitoring by removing <br /> (Appendix V). The well was then pulusd sand: <br /> in <br /> approximately 4 well volumes (cosi ng p ment Protocol <br /> accordance <br /> with waterWork's Well Development <br /> and <br /> (Appendix V) . Groundwater parameters (Q prior 'to sample <br /> conductivity) were allowed to stabilize p <br /> collection. Water samples were then collle d Anand tial, aansported <br /> HS <br /> under chain-of-custody Protocol to APP zed for BTEX and <br /> approved laboratory. The samples were anE modified 8015, <br /> TPHD utilizing EPA methods 8020 and <br /> respectively. The analvt=cal results are summardocumentatzed in �on <br /> 2. Laboratory data meets and chain-of-custody <br /> are included in Appendix IV. <br /> of the groundwater sample indicated <br /> Laboratory results <br /> groundwater beneath the site had not been A P ctnfir confirmation <br /> former underground fuel storage tank. o <br /> 1991. Well <br /> groundwater sample was collected ca August 8,re contained in Appendix <br /> purge logs for both sampling events a <br /> V1. <br /> 4.0 CONCLUSIONS/RECOMMENDATIONS <br /> during the <br /> Analytical results Of runittP underground les cCdies 1 llectedstorage tank <br /> removal of a 550 g derg <br /> indicated that diesel hydrocarbons had impacted soil beneath <br /> -rhe former tank. <br /> Approximately 40 cubic yards cation and disposed of under <br /> contaminated soils were <br /> excavated from the former tank loc <br /> authorization from the APCD and SJCPHS. <br /> including public <br /> Excavation proceeded untilrev prevented fursite bthersenlargemen of the <br /> and private thoroughfaressp les collected <br /> pit. Analytical results of confirmation same <br /> from the excavation indicated that some impacted soils as well as the <br /> southern walls, the <br /> in place on the eastern and soutand 6) <br /> It is <br /> center floor of the excavationroximately 105yards of.affected <br /> estimated that 44 gallons app <br /> 5 <br /> srs6R815.wp <br /> i• <br />