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� sU .� i i JAZ ✓ <br /> a <br /> i'<<vunl L_r <br /> t%07)742 1865 <br /> TM w r� a: a�` u 'kx ;-A\(707,7P2 03,-- <br /> W%.%i <br /> 2-,=W%.%i sectonlibs coin <br /> URS Coto-Sacramento Project Arco Site 6100,Tracy CA P403161 <br /> 2870 Gateway Oaks Drive Suite 300 Project Number WR36619 Repot ted <br /> Sacramento CA,95833 Project Manager Jay Johnson 03/11/04 11 27 <br /> Purgeable Hydrocarbons and BTEX by EPA 8015B/8021B - Quality Control <br /> Sequoia Analytical - PetaIuma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limn Notes <br /> Batch 4030228 -EPA 5030B,water s <br /> Matrix Spike(4030228-MSI) Source P403051-04 Prepared&Analyzed 03/10/04 <br /> Gasoline Range Organics(C6-C10) 2550 50 mg/m'Air 2750 ND 93 65 135 <br /> Gasoline Range Organics(C6-C10) 725 14 ppmv 780 2 2 93 65-135 <br /> Benzene 42 6 0 50 mg/ml Air 32 0 0 11 133 65-135 <br /> Benzene 13 4 0 16 ppmv 10 0 0 033 134 65-135 <br /> Toluene 604 0 13 " 504 0 064 120 65 135 <br /> Toluene 227 0 50 mg/m'Air 190 024 119 65-135 <br /> Ethylbenzene 50 5 0 50 45 5 ^ID 111 65-135 <br /> Ethylbenzene 11 6 0 12 ppmv 10 5 ND 110 65-135 <br /> Xylenes(total) 55 1 0 12 151 2 0 040 108 65-135 <br /> Xylenes(total) 239 050 mg/m'Air 222 ND 108 65-135 <br /> Metltvl cert-outyl ether 204 0 �6 ppmv 15 0 0 15 135 65-135 <br /> ethyl tert-butvl ether 73 3 20 mg/m'Air 54 0 0 54 135 65-135 <br /> rogate aaa-Tris luorotoluene o8 0 ppmv -)03 110 65-135 <br /> Surrogate aaa-Ti rfluorotoluene 346 Mg/in IAir 300 11.) 65-135 <br /> Surrogate 4-Broinofluoroben_ene 423 ppmv 41 9 101 65-135 <br /> Surrogate 4-Bromofluorobence17e 302 m073Air 300 101 65-130 <br /> Matrix Spike Dup(4030228-NISDI) Source P403051-04 Prepared &Analyzed 03/10/04 <br /> Gasoline Range Organics(C6-C 10) 722 14 ppmv 780 2 2 92 65-135 C4 20 <br /> Gasoline Ranae Organics(C6 C10) 2540 50 mg/m'Air 2750 ND 92 65-135 0 4 20 <br /> Benzene 43 2 0 50 1132 0 0 11 135 65-135 1 20 <br /> Benzene 13 5 0 16 ppmv 10 0 0 033 135 65 135 07 20 <br /> Toluene 231 0 50 mgle Air 190 0 24 121 65-135 2 20 <br /> Toluene 61 5 0 13 ppmv 504 0 064 122 65-135 2 20 <br /> Bthylbenzene 12 0 0 12 1110 5 ND 114 65-135 3 20 <br /> F-mylbenzene 522 050 mg/1113 Air 45 5 ND 115 65 135 3 20 <br /> Xylenes(total) 247 0 50 1222 ND 111 65-135 3 20 <br /> Xylenes(total) 57 1 0 12 ppmv 51 2 0 040 111 65-135 4 20 <br /> Methvl tert-butyl ether 64 0 2 0 mg/ml Air 54 0 0 54 118 65 135 14 20 <br /> Met4v] tert but)l ether 17 8 056 ppm 15 0 0 15 118 65 135 14 20 <br /> Suri ogate a a a Tr ifluoioioluene 602 11 .593 120 65-135 <br /> Surrogate a a a-Tr y7uor ololuene 3.)9 mg/in3 Air 300 120 65-135 <br /> Surrogate 4-Broinofluoroben_ene 435 ppnzv -119 104 65-135 <br /> Sur rogate 4-Br on2ofluorobencene 311 nig/m'Air 300 104 65 135 <br /> �Lloid Analytical - Petaluma The results in this report apply to the samples analy_ed iii accordance ivith the chain <br /> of czrstodv document Unless othei tivise stated results ar e repoi ted on a ivet weight <br /> basis This analw7cal report must be repioduced in its entirct)' <br /> Pa<*e 5 of 6 <br />