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Laboratories Inc, <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Project: Foothill LF,SJ County-5 year Reported: 09/03/2009 16:26 <br /> 1326 North Market Boulevard Project Number: 124591 <br /> Sacramento,CA 95834 Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <br /> Quality Control Report- Precision & Accuracy <br /> Control Limits , <br /> Source Source Spike Percent Percent <br /> Constituent Batch ID QC Sample Type Sample ID Result Result Added Units RPD Recovery RPD Recovery lab Quals <br /> Benzene BSH1014 Matrix Spike 0910759-01 ND 26.060 25.000 ug/L 104 70-130 <br /> Matrix Spike Duplicate 0910759-01 NO 27.900 25.000 ug/L 7,4 112 20 70-130 <br /> Bromodichloromethane BSH1014 Matrix Spike 0910759-01 NO 23.900 25.000 ug/L 95.6 70-130 <br /> Matrix Spike Duplicate 0910759-01 NO 24.350 25.000 ug/L 1.9 97.4 20 70-130 - <br /> ---- <br /> Chloroethane BSH1014 Matrix Spike 0910759-01 NO 28.580 25.000 ug/L 114 <br /> Matrix Spike Duplicate 0910759-01 NO 29.770 25,000 ug/L 4.3 119 20 70-13070-130 <br /> - - <br /> 1,4-Dichlorobenzene BSH1014 Matrix Spike 0910759-01 ND 27.480 25.000 ug/L 110 <br /> Matrix Spike Duplicate 0910759-01 NO 27.080 25.000 - -ug/L- - 1.8--108 20 - 70-130 - <br /> --- ----------- -- -- <br /> 30 <br /> __------ ---------- 90.4 70-1 <br /> 1,1-Dichloroethane BSH1014 Matrix Spike 0910759-01 ND 22.590 25.000 ug/L <br /> Matrix Spike Duplicate 0910759-01 NO 23.460 25.000 ug/L 3.7 93.8 20 70-130 <br /> 1,1-Dichloroethene BSH1014 Matrix Spike 0910759-01 ND 28.480 25.000 ug/L 114 <br /> 70-130 <br /> Matrix Spike Duplicate 0910759-01 ND 29.640 25.000 ug/L 4.3 119 20 70-130 -- - <br /> ---- --- ------------ <br /> ----------------- <br /> 70-130 <br /> Toluene BSH1014 Matrix Spike 0910759-01 NO 25.930 25.000 ug/L 104 <br /> Matrix Spike Duplicate 0910759-01 NO 25.710 25.000 ug/L 1.0 -_ 103 - 20 70-130130 <br /> - - <br /> Trichloroethene BSH1014 Matrix Spike 0910759-01 NO 23.510 25.000 ug/L 94.0 70- <br /> Matrix Spike Duplicate 0910759-01 ND 23.770 25.000 ug/L 1.2 -95.1 20 70-130 - <br /> 1,2-Dichloroethane-d4(Surrogate) BSH1014 Matrix Spike 0910759-01 NO 10.170 10.000 ug/L 102 76-114 <br /> Matrix Spike Duplicate 0910759-01 NO 10.090 10.000 ug/L 101 76-114 <br /> -110 <br /> Toluene-d8(Surrogate) BSH1014 Matrix Spike 0910759-01 NO 9.8100 10.000 ug/L 98.7 8 <br /> Matrix Spike Duplicate 0910759-01 ND 9.8100 10.000 ug/L 88.1 88-110 -- <br /> - - <br /> ------------ <br /> ----- - -- ----- <br /> 115 <br /> 4-Bromofluorobenzene(Surrogate) BSH1014 Matrix Spike 0910759.01 ND 10.310 10.000 ug/L 103 86- <br /> Matrix Spike Duplicate 0910759-01 ND 10.680 10.000 ug/L 107 86-115 - <br /> The results in this report apply to the samples analyzed in accordance with the chain ofcusiody document This analytical report must he reproduced in Its entirety. <br /> All results listed in this report are for the exclusive use of the submitting parry. BC Laboratories.Inc.assumes no responsibility for report alteration,separation,detachment or third party interpretation. Page 56 of 83 <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com <br /> Certcations: Califomia-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />