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r <br /> Laboratories, Inc <br /> Project 08671 <br /> TRC Alton Geoseience Project Number [none] <br /> Reported 49/01105 1224 <br /> 21 Technology Drive <br /> Irvine CA,92618-2302 Project Manager An}u Farfan <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report - Method Blank Analysis <br /> peL MDL Lab Quals <br /> �Dniisopropyl <br /> tuent Batch ID QC Sample ID MB Result Units 0 50 0 z5 <br /> BOH1411 BOH14i1-BLK1 ND <br /> ether ND ug/L 1000 110 <br /> BOH1411 BOH141 i-BLKi <br /> EthanolND ug1L 0 50 0 27 <br /> BOH1411 BONi411-BLK1 <br /> Ethyl t-butyl ether ND ug/L 50 23 <br /> BOH1411 BOH1411-BLK1 <br /> Total Purgeable Petroleum Hydrocarbons BOH1411-BLK1 974 % 76-114 (LCL-UCL) <br /> BOH1411 88-110 (LCL-UCL) <br /> 1,2-D,chloroethane-d4(Surrogate) BOH1411 BOH1411-BLK1 100 % _— --- <br /> Toluene-d8(Surrogate) BOH1411-BLK1 872 % 86-115 (LCL-UCL) <br /> 4-Bromofluorobenzene(Surrogate) <br /> BOH1411 ___ <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document This analytical report must be reproduced in its entirety <br /> BC Laboratories <br /> All results listed m this report arc for the ardas,ve use of the submitting party $C Laboratories Inc assumes no responsibility for report alteration separanon dewclrmenr or rhe parry interpretation <br /> Page 16 of 17 <br /> 4100 Atlas Court•Bakersfield,CA 93308•(661)327-4911 •FAX(661)327-1918'wwwbclabs coin ! <br />