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V <br /> ` 110 2nd Avenue South,#D7,Pacheco,CA 94553-5560 <br /> McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-1622 <br /> 1tW//www mccarn,pbell coin E-mail main@mccampbell com <br /> 'i <br /> Advanced GeoEnvironmental Client Protect ID DSS- Stockton Date Sampled 07/23/99 <br /> 4005 North Wilson Way Date Received 07/27/99 <br /> Stockton,CA 95205 Client Contact Kevan McKibben Date Extracted 07/27/99 <br /> Client P O Date Analyzed 07/28-07/29/99 <br /> Multi-Range(Gasoline,Diesel,Motor Oil)TPH 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 Client ID Matrix TPH(Gas)' TPH(Diesel)* TPH(MotorOil)° %Recovery <br /> (C6-C12) (C10-C23) (>C18) Surrogate <br /> 16070 P2-5 S ND ND ND 108 <br /> 1607I P3-10 S ND ND ND 100 <br /> • <br /> Reporting Limit unless otherwise W 50 ug/L 50 ug/L 250 ug/L <br /> stated,ND means not detected above <br /> the reporting limit S I 0 mg/kg 1 0 mg/kg 5 0 mg/kg <br /> *water samples are reported in ug/L,soil and sludge samples in mg/kg,wipes in ug/wipe and all TCLP/SPLP extracts in mg/L <br /> cluttered chromatogram resulting in surrogate and sample peak coelution,or,surrogate peak is on elevated baseline,or,surrogate has been <br /> diminished by dilution of original extract <br /> °oil-range compounds are not fully recovered by this GC methodology <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(/), f) <br /> one to a few isolated peaks present, g) oil range compounds are significant, h)lighter than water imrruscible sheen is present, i) liquid <br /> sample that contains greater Ihan—5 vol %sediment <br /> DHS Certification No 1644 Z// Edward Hamilton,Lab Director <br />