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110 Second Avenue South, #D7, Pacheco, CA 94553 <br />14 1 McCAMPBELL ANALYTICAL INC. Telephone :510-798-1620 Fax : 510-798-1622 <br />htto:/hvww.mccampbell.com E-mail: main@mccampbell.com <br />Advanced GeoEnvimnmental <br />1803 West March Lane, Ste A <br />Stockton, CA 95207 <br />Client Project ID: Cherokee Truck Stop <br />Date Sampled: 09/18-09/22/97 <br />Date Received: 09/23/97 <br />Client Contact: Kevin McKibben <br />Date Extracted: 09/23/97 <br />Client P.O: <br />Date Analyzed: 09/23-09/29/97 <br />Diesel Range (C10 -C23) Extractable Hydrocarbons as Diesel <br />EPA methods modified 8015, and 3550 or 3510; California RWQCB (SF Bay Region) method GCFID(3550) or GCFID(3510) <br />Lab ID <br />Client ID <br />Matrix <br />TPH(d)+ <br />% Recovery <br />Surrogate <br />81029 <br />P-1 <br />S <br />2800,a <br />98 <br />81030 <br />P-2 <br />S <br />200,a <br />97 <br />81031 <br />P-3 <br />S <br />2600,a <br />96 <br />81032 <br />P-4 <br />S <br />1200,a,d <br />lot <br />81033 <br />P-5 <br />S <br />15,d,b <br />98 <br />81034 <br />P-6 <br />S <br />3.5,d <br />94 <br />81035 <br />P-7 <br />S <br />840,a <br />93 <br />81036 <br />P-8 <br />S <br />3.5,d,b <br />95 <br />81037 <br />P-9 <br />S <br />2900,a <br />95 <br />81038 <br />P-10 <br />S <br />3500,a,d <br />96 <br />81039 <br />P -ll <br />S <br />I6,000,a,d <br />96 <br />81040 <br />P-12 <br />S <br />68,c <br />95 <br />81041 <br />P-13 <br />S <br />9000,a,d <br />109 <br />81042 <br />TI -E <br />S <br />12,000,a,d <br />109 <br />Reporting Limit unless otherwise <br />stated; ND means not detected above <br />The reporting limit <br />W <br />50 ug/L <br />S <br />1.0 mg/kg <br />• water and vapor samples are reported in ug/L, wipe samples in ug/wipe, soil and sludge samples in mg/kg, and all TCLP / STLC / SPLP <br />extracts in ug/L <br />" cluttered chromatogram resulting in coeluted surrogate and sample peaks, or; surrogate peak is on elevated baseline, or; surrogate has been <br />diminished by dilution of original extract. <br />'The following descriptions of the TPH chromatogram are cursory in nature and McCampbell Analytical is not responsible for their <br />interpretation: a) unmodified or weakly modified diesel is significant; b) diesel range compounds are significant; no recognizable pattern; c) <br />aged diesel? is significant); d) gasoline range compounds are significant; e) medium boiling point pattern that does not match diesel (?); t) <br />one to a few isolated peaks present; g) oil range compounds are significant; h) lighter than water immiscible sheen is present; it liquid <br />sample that contains greater than —5 vol. % sediment <br />DHS Certification No. 1644 <br />/% Edward Hamilton, Lab Director <br />