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I 10 2nd Avenue South, #D7, Pacheco, CA 94553-5560 <br />McCAMPBELL ANALYTICAL INC Telephone 925-798-1620 Fax 925-798-I622 <br />NCL <br />//www mccam bell com E-mail main@mccampbell com <br />Advanced GeoEnvironmental <br />837 Shaw Road <br />Stockton, CA 95215 <br />Client Project ID Tracy Dinner <br />Date Sampled 04/26/01 <br />Date Received 04/26/01 <br />Client Contact William Little <br />Date Extracted 04/26/01 <br />Client P 0 <br />Date Analyzed 04/26/01 <br />Lead* <br />EPA analytical methods 6010/200 7, 239 24 <br />Lab ID <br />Client ID <br />Matrix <br />Extraction ° <br />Lead* <br />% Recovery <br />Surrogate <br />66180 <br />MW 1042501 <br />W <br />TTLC <br />0 017 <br />N/A <br />66181 <br />MW2 / 0425/01 <br />W <br />TTLC <br />0 028 <br />N/A <br />66182 <br />MW3 / 0.42501 <br />W <br />TTLC <br />0 022 <br />N/A <br />66183 <br />MW4 / 042501 <br />W <br />TTLC <br />0 022 <br />N/A <br />66184 <br />MW5 / 042501 <br />W <br />TTLC <br />0 037 <br />N/A <br />Reporting Limitunless otherwise <br />stated, ND means not detected above <br />the reporting limit <br />S <br />TTLC <br />3 0 mg/kg <br />W <br />TTLC <br />0 005 mg/L <br />— <br />STLC,TCLP <br />0 2 mg/L <br />* soil and sludge samples are reported in mg/kg, wipe samples in ug/wipe, and water samples and all STLC / SPLP ! TCLP extracts in mg/L <br />'Lead is analysed using EPA method 6010 (ICP)for soils, sludges, STLC & TCLP extracts and method 239 2 (AA Furnace) for water <br />samples <br />* DISTLC extractions are performed using STLC methodology except that deionized water is substituted for citric acid buffer as the <br />extraction fluid DISTLC results are not applicable to STLC regulatory limits <br />° EPA extraction methods 1311 (TCLP), 3010/3020(water,TTLC), 3040(organic matnces,TTLC), 3050(solids,TTLC), STLC - CA Title 22 <br />surrogate diluted out of range, N/A means surrogate not applicable to this analysis <br />reporting limit raised due matrix interference <br />i) liquid sample that contains greater than —2 vol % sediment, this sediment is extracted woth the liquid, in accordance with EPA <br />methodologies and can significantly effect reported metal concentrations <br />DHS Certification No 1644 Edward Hamilton, Lab Director <br />