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ME <br /> Or M <br /> t mm zo: <br /> hydrocatbon con tafr&itiun owitc and in mw%5 t1kc cxIctitof off�iir mij:r-i4hol, A'icto <br /> line'for grtAjrd water contamination%kill thu%,be c;iablkhrd, <br /> The wil lx6ngs will bedrilled by Specirum Explerativn lrx.v(Stockton,C,41ifnmia(C,87 <br /> liccaw number:312268)under conima to atul direct suivrvision of EA, Ilse*-cll-.will'c <br /> installed accordins to HA's sLindud pmtocolt uldch arc tuttJ on 11w.guiddincl outlined in <br /> the Envirmnvnial Pnmection AScPcy'*jahj1gj <br /> M-:GD),Sepicinbcr 1986,the Uifum!2 Staic Water Rcsourcci Control Dowd's <br /> Tank RrUlAtiml Aurtist 1987.and the%,pc4:ir1c <br /> Puldcline.s ofSrLn Joaquin Environmental Health. All%oil kmines will.supervi."by a <br /> quAlificd CA geologist umict,the supervision of a Cilirornia rqi*tctrd ecologist arAVor a <br /> Prorculonal civil engincrt. <br /> I'lic wil bofings will be drilled with a rotary dtill using a 10 inch o#jtvdc-dijmc-:r,holhow- <br /> stem auger. 11v borings to be completcd as Smund water numatwing%krik will,according <br /> to suidolifts, be drilled below the static,perennial ground water. Ilic-om-ic depth to <br /> Cmund water at this site Is between 36 and 37 fed below pound surface.and a thick <br /> -di -bcadj%!LW. The gmnd-waxr <br /> competent clay occurs irnnx atcly below the wator <br /> mortitoring we9swill thesefair-be cmipIctod at depths bctwczn 42 and 45 fict below <br /> S=nd surface,I to 2 feet Into this compctent clay to prcvent the downwwd migration of <br /> conumirmnu through the rwnitoring uvils. 'Me augm will be smim cic=Acd bcoAven use <br /> in c=h soil boring, ne MR cuidings Will be coniined in barrcls wW stored within a <br /> fenced area on-sitc until thc;cuttings c=be oppropd3tcly disp=d of. <br /> lie%vt1ts will be complctrd as mofi[toring wells(F--tg=4)wcording to Section 2647 of <br /> -actory-p <br /> Qjif6m[a_UndeM=ad Sim=BA Regilla r crf=tcd PVCsc=n <br /> (Sdxdule 40 PVC with 0.010 inch slot 3M flush thrcads)will be insWicid fMM one foot <br /> above thi:bottorn ofthe boring W a depth of appmxirnatcly 25 feet b0ow pound surfacie. <br /> 10 feet abovv the rxk ltvcl of the ground water. Otank PVC casing will be uW to <br /> complete the**-cU to the VvjM sugxc. 11e bottom end c�the c3sing wilt be rated%ith <br /> cithrra duvaded cM plug or a Op cap. A f1lxrp3ck will bccmatcd by filling the innuLv <br /> space wound the casing with Lcm SLir No.V16 sand. 'Me filter pack will extcrd from <br /> * ns to tvm foct above the top of the .approxi :rly <br /> om foot below ft smened c-U sm" Ou. <br /> fed below <br /> bentonitc pellem ax!a=rface stal wiU be crcitcd with arat cenvent grouL 'Me grow%ill <br /> bepLued bytrtrTdc bellarting at the thcbmonlic its]wWrisiz tothctop. <br /> WN <br />