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JUL--12-2000 16 30 CAMBRIA 510 420 9170 P 21/35 <br /> 145$McDowell North,Ste <br /> „ 4 Q0 �eq�' oia Petalutaki ma,CP.949544 <br /> (707)792-1x65 <br /> WO Analytical <br /> FAX(707) jabsc797-0342 <br /> m <br /> www sequ4{alabo <br /> Cambria Ettvlrnnmental-Oakland Project Equrva Sampled 6/20/00 <br /> 1144 65th St,Suite C Project Number 341E Main St.,lbpon Received 6/22/00 <br /> Oakland,CA 94608 Pro ect Manager Owen Ratcbn Rgyrted 717/00 <br /> Volatile Organic Compounds by EPA Method 826019/Quality Control <br /> Sequoia Analytical-Petaluma <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> alyte Anal ed Level Result Result Units Recov Ltrmts % L=t % Notes* <br /> Butch. 0069735 to Pre ed: 6 Extraction Method, EPA 5o3Q waters <br /> Blank 0060735-BLKI <br /> Tert-amyl methyl ether 6/30/00 ND ugA 1.00 <br /> Tera butyl alcohol Np .' 290 <br /> Di-isopropyl ether ND " 1.00 <br /> Ethanol ND 100 <br /> Ethyl tert-butyl ether ND 1.00 <br /> Methyl tert-bu rl ether ND " 0 500 <br /> Surrogate Dibromofluoromethane Soo 457 " 860-119 914 <br /> Surrogate 1.2-Dichloroethane-d4 Soo 463 " 800-120 926 <br /> Surrogate Toluene-d8 S 00 475 $80-110 950 <br /> Blank0060735.BLK3 <br /> Tert•artlyl methyl ether 712100 ND ug/1 100 <br /> Tert-butyl alcohol " ND 20.0 <br /> -than <br /> Dr-isopropyl ether ND 100 <br /> ol ND 100 <br /> Ethyl tent-butyl ether ND 100 <br /> Methyl tent-b 1 ether ND " 0 500 <br /> Surrogate Dlbromofluarornethane Soo 461 " 860-118 92 2 <br /> Surrogate 1,2-Dwh1oroethane-dd " Soo 512 800-120 102 <br /> Surrogate Toluene-d8 " Soo 491 880-110 982 <br /> La 0060735-BSl <br /> Methyl tort-butyl ether 6/30/00 Soo 464 u 727-119 928 <br /> Surrogate Debromofluoromethane Soo - 4 820 <br /> Surrogate 1,2-D+chloroethane­d4 Soo 302 .11$ 964 <br /> 8$d 6 0�-120 100 <br /> Surrogate Toluene-d8 .. 500 472 880-110 944 <br /> LCS Ob073 -833 <br /> Methyl tert-butyl other 7/2/00 Soo 491 ug/l 72,7-119 982 <br /> Surrogate Drbromofluoromethane "- S QO 470 N "— <br /> Surrogam 1,2-Dichlorocthane-d4 Soo 519 a 8860118 940 104 <br /> 6 0-110 <br /> Surrogate Toluene-d8 " S 00 486 " 880-110 104 <br /> 72 <br /> Mainz Sluke Oa 0733-t S- P006632,21 <br /> Methyl tert-butyl ether 6130100 Soo ND 507 ug/l 727-119 101 <br /> Surrogate Dlbromofluaromerhane " 5 40 476 " 860-118 952 <br /> Surrogate 1,2-Dichloroethane-d4 " Soo S20 800-120 104 <br /> Surrogate Toluene-d8 500 a 64 " 880-110 928 <br /> uota Analytical-Petaluma "Refer to end of report far text of notes and definitions <br /> p Page 7 of 9 <br />