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s `k; Pe glum i C a ';4Q>, <br /> l v.$.!�,�„j (707)792 1305 <br /> :4 std Fo,X(707)702 0342 <br /> t� t�t scgnol'tl`tbn win <br /> F <br /> Sacramento Protect Arco Stte 6100 Tracy CAP403I62 <br /> ay Oats Drive Suite 300 Project Number WR36619 Repot ted <br /> CA,95833 Project Manager Jav 7ohnson 03/11/04 11 36 <br /> Purgeable Hydrocarbons and BTEY by EPA 80I5B/8021B - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit urws Level Result %REC Limits RPD Limit Notes <br /> Batch 4030228-EPA 5030B,Nti atet s <br /> Blank(4030228-BLK1) Prepared&Analyzed 03/I0/04 <br /> Gasoline Range Organics (C6-C10) ND 14 ppmv <br /> Gasoline Range Organics(C6-CTO) ND 50 mg/m'Air <br /> Benzene ND 0 50 " <br /> Benzene ND 016 ppmv <br /> Toluene ND 013 " <br /> Toluene ND 0 50 mg/ml Air <br /> Ethyibenzene ND 050 <br /> Eth-lbenzene ND 012 ppmv <br /> Xylenes(total) ND 0 12 " <br /> Xylenes(total) ND 0 50 mg/m'Atr <br /> Nlethvl tert-butyl ether ND 20 <br /> ethyl tent-butyl ether ND 0 56 ppmv <br /> rogale a a a-Ti-IJIuorololuene So 9 503 101 65-135 <br /> Surrogate aaa-Triuoiotohrene 304 mg/m'Air 300 101 65-135 <br /> Swrogale 4-BromofIuoiobencene 39 9 ppmv 419 95 65-135 <br /> Suri ogate 4-Broinofluorobenzene 285 mg/m3 Air 300 95 6-)-I35 <br /> Laboratory Control Sample(4030228-SSI) Prepared&Aoal zed 03/10/04 <br /> Gasoline Range Organics (C6-C 10) 719 14 ppmv 780 92 65-135 <br /> Gasoline Range Organics(C&C10) 2530 50 mg/m'Air 2750 92 65-135 <br /> Benzene 13 2 0 16 ppmv 10 0 132 65-135 <br /> Benzene 42 0 0 50 mg/ml A:r 32 0 131 65-135 <br /> Toluene 216 0 50 190 114 65-135 <br /> Toluene 57 5 0 13 ppmv 504 114 65-135 <br /> Eth,yibenzene 11 4 0 I2 10 5 109 65-135 <br /> Ethylbenzene 493 050 mg/m'Air 43 5 1 08 65 135 <br /> Xylenes(total) 234 0 50 222 105 65-135 <br /> Xylenes (total) 54 1 0 12 ppmv 51 2 106 65-135 <br /> Alethvl Cert-butr l ether 700 20 ine/m'Air 54 0 130 65-135 <br /> Methvi tert-but}I ether 19 5 0 56 ppmv 15 0 130 65-135 <br /> Surrogate a a a-Trti/hio+otoluene 340 mg/m'Ari 300 113 65435 <br /> Surrogate aaa-Trzuoiololziene 369 ppmv 503 113 63-135 <br /> Suriagate 4-Broinofluorobenzene 305 mg/inI Az; 300 102 63-135 <br /> Surrogate 4-Biomofluoroben_ene 426 ppmv 41 9 102 65-133 <br /> �uoia Analytical - Petaluma The i esults in this?epoi t apply to the samples anniv_ed in actor dance with the chain <br /> of custody document Unless other wise stated i esults ai e i epor 1Pd on a wet weight <br /> basis This o17alv1rca1 iepoiI must be iepi oduced in is ent:refy <br /> Pave 4 of 6 <br />