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Is the <br /> bor,rg location TES <br /> r spec,f,ed� <br /> [brill at the specified <br /> b.,,nq Location <br /> I <br /> NO <br /> Gor,ngs should be within at <br /> least 10 ft of the suspected <br /> Leak area If feasible, the <br /> borings should be ,n the <br /> backfill area and ,n down <br /> gradient direction <br /> Samples should be taken at <br /> every 5 ft to at least 30 ft MONITORING WELL FLOW CHART <br /> below the lowest point of the <br /> storage tank or to a max,mum <br /> depth of 45 ft from ground FOR FUEL LEAK INVESTIGATIONS <br /> surface. <br /> Encounter <br /> groundwater? TES <br /> Drill at least 15 ft into <br /> the saturated zone <br /> NO Note No samples should <br /> be taken ,n the saturated <br /> zone <br /> Abandon boring according to <br /> CRWOC8 guidelines (Grout NO <br /> boring) <br /> Encounter a CLAY Layer Is it <br /> within the 15ft - -TES more than 5 ft in YES <br /> saturated'zone� h i ckness7o,"` <br /> NO <br /> Stop drilling and backf,lt with <br /> concrete to top of clay or <br /> impervious layer <br /> Set monitoring well to <br /> bottom of boring, screen <br /> tO bottom and 5 ft above <br /> saturated zone <br /> ARCO AMI/P24 r10� 12,RXE1 FACILITY MON' �ORING WELL FLOW CHANT <br /> BALBI & C I IAING ASSOCIA`TS PROJECT NO. DATE 5/23/88 <br /> Geotechnical Consultents / Niatoriala Testing PREPARED BY BK PLATE � <br /> a� ���.. <br />