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F _ <br /> Idlewild Market:- Work <br /> April 8, :1994 <br /> - <br /> �. age <br /> - field with :an�organic.,vapor analyzer OVA (Flame ;Ionization_ <br /> -- Detector) . The -hydrocarbon detection_ limit. for -the OVA is-`rated - <br /> at 17.0 part - er-mzllionc ;m - -- i <br /> I <br /> The soil samples willbe logged_ according to the. Unified` <br /> Soil Classification System undergthe :supervision of ay„geologist4 - _ <br /> s registered in:.the- Stat of California.y The geological lags will <br /> include such field observations-:as soil type, -estimated moisture <br /> content, presence of -.:fuel product or odor and- field OVA' - <br /> measurements = <br /> 13 4 <br /> Two soil l_samples per bo-rehol—wi11=bel—chosen- fors chemical <br /> analyses. We ant icipate, that 's oil samples collected at :the 15 <br /> r <br /> and -20 foot-depths will"be analyzed at the laboratory. See <br /> FigIre 4 for cross section. of angle boring sample locations <br /> _The soil cuttings from .eachsboring~will :be placed-on, and <br /> covered=with plastic sheeting and left on site pending_" <br /> laboratory results .' Disposal -of _tlie soil cuttings 6w_11 be the, <br /> responsibility of 'the property owner.: Following drilling the - <br /> soil bora ngs _will be_bac.kfi.11ed with a --cement'�slurry containing 5 - <br /> per cent by weight bentonite. W s <br /> � . <br /> _4.0� LABORATORY ANALYSES <br /> ` A minimum..of _2,'soilsamples per_ boring will be retained` for <br /> laboratory analyses.. _The Samples will be_sealedratthe ends. wiIlk <br /> th ~ : <br /> -3 <br /> �.,- <br /> i <br /> COFEDOR"- <br />