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. Clsyton <br /> Ms I—lurle Cotulla <br /> June 11, 1990 <br /> Page 2 <br /> ANALYTICAL FINDINGS <br /> Methods used to analyte sod and groundwater samples from OIL thmi, monitoring <br /> wells onsite were selected to establish a baseline environmental condition at the site, <br /> and to assess soil and groundwater for possible contamination from (1) them farmer <br /> UST, (2) UST, upgrddient of the subject property, and (3) the possible previous u%c <br /> of pesticides on%ite The soil and groundwater samples were analysed by the following <br /> methods <br /> • EPA Method 503018015-8020, for TPH as gasoline .lnd for BTEX <br /> • EPA Methcd 418 1, for total recoverable petrok unl hydrocarbons and oil and <br /> grease <br /> • EPA Methuds 8080 (soil) and 508 (water) for organochlorine <br /> pestictdes/polychlonnated biphenyls (PCBs) <br /> All samples were transported to Clayton's State-Certified laboratory, accompanied by <br /> chain-of-custody Detailed laboratory results are mcluded In Attachment B A <br /> summary of these results is presented below <br /> iSoil Sam le Analytical Results <br /> 41 7M�x5•< # w,a o E • Oxy.<`.rte t $ < <br /> MWS fit 3 I7�atecttpa <br /> "S5* ' 104, <br /> Yui �CSt � <br /> DI'nzene ND' ND ND ND ND ND 5 <br /> Toluene 10 ND ND ND 40 50 5 <br /> xylenes ND ND ND ND 460 730 5 <br /> Ethylbenzene 4D ND ND ND 350 33U 5 <br /> TP 1 as Gzsoline 1, ND Nle NU J ND 60 000 j8,000 .1000 <br /> 4d and Grease 20 30 70 ND 250 70 10 mg/kg <br /> and ttecoyLrable <br /> Hydrocarbons <br /> SW 16gr ND ND ND NI) ND ND Vanables <br /> osgancSchtA/ttlr <br /> t'cst3dlic�JtaE:i3s k <br /> (�aact<auaaugn', <br /> mom} < <br /> • Nt) a o!deleLted <br /> 195114XLRI P <br /> i <br /> IL— <br /> `v <br />