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140W <br /> 1534 Willow Pass Road,Pittsburg,CA 94565-1701 <br /> M c C a m p b e 1 Analytical, InC. Toll Free Telephone:(877)252-9262/Fax:(925)252-9269 <br /> "When Quality Counts" http://www.mccatnpbell.com/E-mail:main@mcampbell.com <br /> Advanced GeoEnvironmental,Inc. Client Project ID: #95-0106;Weldon Date Sampled: 03/12/12 <br /> Church <br /> Date Received: 03/14/12 <br /> 837 Shaw Road <br /> Client Contact: Brian Millman Date Extracted: 03/14/12-03/19/12 <br /> Stockton,CA 95215 Client P.O.: Date Analyzed: 03/14/12-03/19/12 <br /> TPH gas+Volatile Organic Compounds in µg/m'x <br /> Fztraction%lethod- I'O15 Analytical Method:TO15 Work Order. 1203413 <br /> Lab ID 1203413-OOIA 1203413-002A 1203413-003A i 1203413-004A <br /> Client ID Ambient-SE-3-12- Ambient-S-3-12 Ambient-SW-3- CS-NW-3-12-12 <br /> 12 12 12-12 Reporting Limit for <br /> Matrix Indoor Air Indoor Air Indoor Air Indoor Air DF=1 <br /> Initial Pressure(psia) 14.53 14.50 14.09 14.08 <br /> Final Pressure(psia) 14.53 14.50 14.09 14.08 <br /> DF I 1 1 1 Indoor Air W <br /> Compound Concentration µg/m' ng/I_ <br /> Benzene S 0.48 0.46 0.45 240 0.08 NA <br /> t-Butyl alcohol(TBA) rb �S V ND ND ND 7.3 6.2 NA <br /> Diisopropyl ether(DIPE) - — — I ND ND ND ND 0.42 NA <br /> Ethyl tert-butyl ether(ETBE) l ND ND ND ND 0.42 NA <br /> Ethylbenzene r—S L-- 8 ND ND ND 290 0.44 NA <br /> Methyl-t-butyl ether(MTBE) ND ND ND ND 0.37 NA <br /> Toluene L S L_ b 3 0.98 0.56 0.51 1700 0.38 NA <br /> Xylenes,Total E'S L — 2- 1 ND ND ND 1500 1.3 NA <br /> TPH(g) GSL— ND ND ND 8900 360 NA <br /> Surrogate Recoveries(%) <br /> %SSI 104 104 104 106 <br /> %SS1 103 102 103 104 <br /> %SS3: 82 76 95 127 <br /> Comments � <br /> i <br /> 'vapor samples are reported in pg/m'. <br /> ND means not detected above the reporting limit/method detection limit;N/A means analyte not applicable to this analysis. <br /> #surrogate diluted out of range or surrogate coelutes with another peak. <br /> %SS=Percent Recovery of Surrogate Standard <br /> DF=Dilution Factor <br /> DHS ELAP Certification 1644 Angela Rydelius,Lab Manager <br /> Page 5 of 10 <br />