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McCamnbell Analytical, Inc. 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> Web:www.mocampbell.com E-mail:main®mccampbell.com <br /> "When Quality Counts" Telephone:877-252-9262 Fax:925-252-9269 <br /> • WGR Southwest,Inc. Client Project ID: #704.PRI.05; Date Sampled: 05/14/08 <br /> LEARNER <br /> 315 W.Pine Street,Suite 8 Date Received: 05/14/08 <br /> Client Contact: Mazda Herbert Date Extracted: 05/15/08-05/17/08 <br /> Lodi,CA 95240 <br /> Client P.O.: Date Analyzed 05/15/08-05/17/08 <br /> Gasoline Range(C6-C12)Volatile Hydrocarbons as Gasoline <br /> Exonctuminothod SW5030B Analytical methods SW80150m Work Order: 0805377 <br /> Lab ID Client ID Matrix TPII(g) DF /.SS <br /> 020A B-1 W ND I 91 <br /> 021A B-2 W 800,b,m 1 108 <br /> 022A B-3 W ND 1 92 <br /> 023A B-4 W ND 1 95 <br /> 024A B-5 W ND 1 102 <br /> 025A B-6 W ND 1 99 <br /> 026A B-7 W ND 1 92 <br /> • <br /> Reporting Limit for DF=1; W 50 µg2 <br /> ND means not detected at or S NA NA <br /> above the reporting limit <br /> "water and vapor samples and all TCLP&SPLP extracts are reported in ug/L,soil/sludge/solid samples in mg/kg, wipe samples inµg/wipe, <br /> product/oil/non-aqueous liquid samples in mg/L. <br /> #cluttered chromatogram;sample peak coelutes with surrogate peak. <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 gasoline is significant;b)heavier gasoline range compounds are significant(aged gasoline?);c) <br /> lighter gasoline range compounds(the most mobile fraction)are significant;d)gasoline range compounds having broad chromatographic peaks <br /> are significant;biologically altered gasoline?;e)TPH pattern that does not appear to be derived from gasoline(stoddard solvent/mineral <br /> spirit?);f)one to a few isolated non-target peaks present;g)strongly aged gasoline or diesel range compounds are significant;h)lighter than <br /> water immiscible sheen/product is present;i)liquid sample that contains greater than—1 vol.%sediment;j)reporting limit raised due to high <br /> MTBE content;k)TPH pattern that does not appear to be derived from gasoline(aviation gas).m)no recognizable pattern;n)TPH(g)range <br /> non-target isolated peaks subtracted out of the TPH(g)concentration at the client's request; )see attached narrative. <br /> DHS ELAP Certification No 1644 Angela Rydelius,Lab Manager <br />