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® January 3, 0 3 2 1 Lab ID : STK1251217 <br /> San Joaquin County P -Solid Waste Div. Customer : 3-2956 <br /> Quality Control -Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Organic <br /> Ethyl tert-Butyl Ether 8260B 12106/12:218189VRG CCV u 25.00 138% 50-150 <br /> Ethylbenzene 8260B l2/06/12:218189VRG CCV u 25.00 96.1% 80-120 <br /> Ethylene Dibromide(EDB) 8260B 12106/12:218189VRG CCV ug/L 25.00 94.6% 70-130 <br /> exachlorobutadiene 8260B 12106/12:218189VRG CCV ug/L 25.00 109% 70-130 <br /> Isopropyl Ether 8260B 12/06/12:218189VRG CCV ug/L 25.00 136% 50-150 <br /> opropylbenzene 8260B 12106/12:218189VRG CCV ug/L 25.00 81.0% 70-130 <br /> Methyl tert-Butyl Ether 8260B 12/06/12:218189VRG CCV ug/L 25.00 116% 70-130 <br /> Naphthalene 8260B 12/06/12:218189VRG CCV ugtL 25.00 91.2% 70-130 <br /> -Butylbenzene 8260B 12/06/12:218189VRG CCV ug/L 25.00 94.6% 70-130 <br /> -Prop lbenzene 8260B 12/06/12:218199VRG CCV ugIL 25.00 93.7% 70-130 <br /> Lsopropyltoluene 8260B 12/06/12:218189VRG CCV ug/L 25.00 91.2% 70-130 <br /> sec-Butylbenzene 8260B 12/06/12:218189VRG CCV ugIL 25.00 93.2% 70-130 <br /> Styrene 8260B 12/06/12:218189VRG CCV ug/L 25.00 96.9% 70-130 <br /> AME 8260B 12106/12:218189VRG CCV u 25.00 124% 50-150 <br /> tert-Butanol 8260B 12/06/12:218189VRG CCV ug/L 125.0 222% 50-150 1 360 <br /> tert-Butylbenzene 8260B 12/06/12:218189VRG CCV ugLL 25.00 80.6% 70-130 <br /> Tetrachloroethylene(PCE) 82.60B 12/06/12:218189VRG CCV ug/L 25.00 102% 70-130 <br /> Toluene 8260B 12/06/12:218189VRG CCV u 25.00 103% 80-120 <br /> Toluene-d8 8260B 12/06/12:218189VRG CCV ug/L 25.00 105% 70-130 <br /> trms-1,2-Dichloroethylene 8260B 12/06/12:218189VRG CCV u 25.00 112% 70-130 <br /> s-1,3-Dichl2ro ene 8260B 12/06112:218189VRG CCV u 25.00 94.7% 70-130 <br /> ® richloroeth ene(TCE) 8260B 12/06/12:218189VRG CCV ug/L 25.00 97.5% 70-130 <br /> Trichlorofluorometbane F-11 8260B 12/06/12:218189VRG CCV u 25.00 115% 70-130 <br /> Vinyl Acetate 8260E 12/06112:218189VRG CCV ug/L 30.00 97.7% 50-150 <br /> Vinyl Chloride 8260E 12/06/12:218189VRG CCV ug25.00 81.4% 80-120 <br /> Xylene m,p 8260B 12/06/12:218189VRG CCV u 50.00 98.7% 70-130 <br /> Xylenes o 8260B 12/06/12:218189VRG CCV ug/J- 25.00 94.8% 70-130 <br /> Definition <br /> CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. <br /> Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. <br /> LCS :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. <br /> MS :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample <br /> matrix affects analyte recovery. <br /> MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries <br /> are an indication of how that sample matrix affects analyte recovery. <br /> MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation <br /> and analysis. <br /> ND :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO Data Quality Objective-This is the criteria against which the quality control data is compared. <br /> Explanation <br /> 310 :LCS above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. <br /> 360 :CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. <br /> 435 :Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. <br /> Page 23 of 23 <br />