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1 Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wrget Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Striker Ayenue,Suite 9 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Ground sero Analysis Client Project lb 95-006/ Knowles Aoek Sampled Oct 13, 1995 <br /> 3422 W Hammer Lane, #C-294 Sample Matrix Air Received Oct 13, 1995 <br /> Stockton, CA 95219 Analysis Method EPA 5030/8015/8020 Reported Oct 19, 1995 <br /> Attention Justin Power First Sample# 510-0569 <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX DISTINCTION <br /> ' Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I I D 10 1 D I D I D <br /> mg/m3 510-0569 510-0570 510-0571 510-0572 510-0573 510-0574 <br /> ' KRVW2 KRVW2 KRVW2 KRVW4 KRVW4 KRVW4 <br /> 30 Inf 120 lnf 120 Eft 30 Inf 120 Int 120 Eff <br /> Purgeable <br /> Hydrocarbons 50 26,000 29,000 46 11,000 15,000 7 2 <br /> Benzene 0 050 800 900 10 300 420 22 <br /> Toluene 0 050 1,100 1 000 39 91 150 033 <br /> Ethyl Benzene 0 050 210 230 0 25 32 52 0 043 <br /> Total Xylenes 0 050 760 810 13 100 160 0 088 <br /> Chromatogram Pattern Gasoline Gasoline Gasoline Gasoline Gasoline Gasoline <br /> G6-C12 C6-C 12 C6-C 12 G6-1312 G6-1012 G6-1312 <br /> Quality Control Data <br /> Report Limit Multiplication Factor 500 2.00 1 0 200 200 10 <br /> Date Analyzed 10/13/95 10/13/95 10/13/95 10/16/95 10/16/95 10/16/95 <br /> Instrument Identification GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> I <br /> Surrogate Recovery, % 112 99 108 98 116 101 <br /> (QC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against a fresh gasoline standard <br /> Analytes reported as N D were not detected at or above the reporting limit <br /> I <br /> EQ IA ANALYTICAL, ELAP#1624 <br /> Janet an <br /> Project Manager <br /> 5100569 GGG <1> <br /> sem. <br />