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O.B.S. - Knox's Texaco <br />April 11, 1991 <br />Page -3- <br />The soil samples were collected and transported to the <br />laboratory under strict quality control procedures. The samples <br />were collected by driving a clean brass sleeve into soil brought <br />to the surface in the backhoe bucket. The samples were sealed <br />with aluminum foil, capped, wrapped with plastic tape, labeled, <br />placed in iced storage, and were delivered under chain -of -custody <br />procedures to GeoAnalytical Laboratories in Modesto, California, <br />for analysis. <br />The soil samples were analyzed for benzene, toluene, ethyl <br />benzene, and xylene (BTEX) by Method 8020, for total petroleum <br />hydrocarbons -gasoline (TPH-G) by Method 5030/Mod.8015, for lead <br />by Method 7420 (STLC - Waste Extraction Test), and for ethylene <br />dibromide (EDB) by LUFT Method. <br />3.0 LABORATORY RESULTS <br />Laboratory analyses indicate that neither TPH-G nor BTEX <br />constituents were detected in the soil samples collected at this <br />site. Lead was detected in both samples at concentrations of 0.2 <br />milligrams per liter. EDB was not detected in either sample. <br />Tables 1, 2, and 3 show the results of the laboratory analyses. <br />Laboratory report sheets indicating analytical methods used, <br />detection limits, and results of analyses are attached to this <br />document. <br />*t4io,, <br />CONDOR <br />