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110 2nd Avenue South, #D7, Pacheco, CA 94553 <br /> McCAMPBELL ANALYTICAL INC L I Tele 510-798-1620 Fax 510-798-1622 <br />' Advanced GeoEnvironmental,Inc Client Project ID West Clay Properties Date Sampled 11/08/96 <br /> 1803 West March Lane, Suite A Date Received 11/08/96 <br />' Stockton, CA 95207 Client Contact Kevin McKibben Date Extracted 11/13/96 <br /> Client P O Date Analyzed 11/13/96 <br />' Total Recoverable Petroleum H3drocarbons as Oil&Grease("ith Silica Gel CIean-up) by Scanning IR Spec- <br /> trometry* <br /> EPA method 418 1 or 9073 Standard Methods 5520 C&F <br /> Lab TD Client ID Matrix TRPH{ % Recovery <br /> Surrogate <br /> 71025 SPI-1 S 60 --- <br /> 71026 <br /> -#71026 SP 1-2 S 73 --- <br /> 71027 <br /> -#71027 SP 1-3 S 80 ---# <br />' 71028 SP1-4 S 48 107 <br /> 71029 SP 1-5 S 550 ---4 <br />' 71030 SP1-6 S 23 109 <br /> 71031 SP2-1 S 82 9 <br /> 71032 SP2-2 S 43 99 <br /> 71033 SP2-3 S 140 --- <br /> 71034 SP24 S 140 --- <br /> 71035 <br /> -#71035 SP2-5 S 75 102 <br /> 71036 SP2-6 S 340 --- <br />' Reporting Limit unless other- W 10 mg/L <br /> wise stated,ND means not de- <br /> tected above the reporting limit S 10 mg/kg <br /> *water samples are reported in mg/L and soils and sludges in mg/kg <br /> 4 surrogate diluted out of range or not applicable to this sample <br /> + At the laboratory's discretion, one posiline sainpple maybe run by direct infection chramatogra by with PID <br /> detection The following comments pertain to this GC result a)gasoline-range compounds(C6-C 12}are ppresent <br /> b) diesel range compounds (C10-C23) are present, c) oil-range compounds (> C18) are present d) other <br /> patterned solvent(?),e) isolated peaks,f) GC compounds are absent or insignificant relative to TRPR inferring <br /> chat complex biologically derived molecules (hpids7)are the source of IR absorption, h) a lighter than water <br /> immiscible sheen is present,i) liquid sample that contains greater than--• 5 vol % sediment <br /> 1 0 — - ._.. I <br /> DHS Certification No 1644 Edward Hamilton,Lab Director <br />