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QC Acceptability Limits <br /> QC Check Duplicate Duplicate Water Soil Reagent <br /> Analyte Sample Water Soil Matrix Matrix Water <br /> Recovery Sample Sample Spike Spike Spike <br /> (g6) RPD RPD Recovery Recovery Recovery <br /> (%) (% % <br /> Modified EPA 8020: <br /> Benzene 80- #20 30 30 55 - 129 24- 127 70- 147 <br /> Toluene 80 - 120 30 30 72- 149 17- 124 67- 150 <br /> Ethylbenzene 80 - 120 30 30 75 - 138 19- 129 69-145 <br /> Xylene, total 80- 120 30 30 74 - 147 23- 124 71 - 152 <br /> Modified EPA 8015 <br /> Gasoline --- 30 30 — --- <br /> OC Check Duplicate Duplicate Water Soil Reagent <br /> Analyte Sample Water Soil Matrix Matrix Water <br /> Recovery Sample Sample Spike Spike Spike <br /> {%) RPD RPD Recovery Recovery Recovery <br /> N (%) {%) (%) {%) <br /> Diesel --- 30 30 63- 127 58- 144 48- 134 <br /> EPA 8010/8020: <br /> Chlorobenzens 80- 120 30 — 34-134 58-126 62-111 <br /> Benzene 80- 120 30 — 66-118 24-127 58-127 <br /> Toluene 80- 120 30 -- 53 - 115 17- 124 60-120 <br /> E~thylbenzene 80- 120 30 --- 43-131 19- 129 58-125 <br /> Xylene,total 80 - 120 30 -- 55-115 23- 124 63- 128 <br /> 1,1-Dichloroethene 80- 120 30 -- 30-160 72 - 116 56- 138 <br /> Trichloroethene 80- 120 30 --- 78-184 79-120 82-187 <br /> EPA 8080: <br /> Heptachlor 80 - 120 30 — — 34- 111 34-111 <br /> Aldrin 80- 120 30 — — 42- 122 42- 122 <br /> DDE 80- 120 30 — — 30-145 30-145 <br /> Dieldrin 80- 120 30 — --- 36- 146 36- 146 <br /> Endrin 80- 120 30 --- --- 30 -147 30- 147 <br /> DDD 80- 120 30 --- -- 31 - 141 31 - 114 <br /> DDT <br /> 80 - 120 30 --- --- 1 10- 180 10- 180 <br /> Arochlor 1260 45- 127 30 — — 53- 128 53- 128 <br /> GTEL Concord,CA Page t of 3 <br /> March,1992 <br /> CHEVOCL.SET <br /> NGTEL <br /> [NYIRONM[MfAI <br /> - lAGOSATORII! IMG <br />