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March 23, 2011 Lab ID : STK1131554 <br />San Joaquin County Solid Waste Customer :3-2956 <br />Quality Control - Organic <br />Constituent <br />Method Date/ID <br />Type <br />units Cone. <br />QC Data <br />DQO Note <br />Organic <br />Dichloromethane <br />8260B 02/28/2011:203013 <br />CCV <br />u 25.00 <br />93.5% <br />70-130 <br />Ethyl tert-Butyl Ether 8260B 01/28/2011:203013 <br />CCV <br />a 25.00 <br />102% <br />50-150 <br />ELh ]benzene <br />8260B 021282011:203013 <br />CCV <br />n 25.00 <br />103% <br />80-120 <br />lane Dibromide (EDB) 8260B 02282011:203013 <br />CCV <br />n 25.00 <br />101% <br />70-130 <br />exachlorobutadiene 8260B 02282011:203013 <br />CCV <br />u 25.00 <br />97.6% <br />70-130 <br />Isopropyl Ether <br />8260B 02282011:203013 <br />CCV <br />UEL 25.00 <br />83.0% <br />50-150 <br />ro ylbenzene <br />8260B 022812011:103013 <br />CCV <br />n 25.00 <br />73.7% <br />70-130 <br />Methyl tart -Butyl Ether 8260B 0228/2011:203013 <br />CCV <br />ngtL 25.00 <br />114% <br />70-130 <br />a hthalene <br />8260E 02/2812011:203013 <br />CCV <br />u 25.00 <br />86.1% <br />70-130 <br />u lbenzene <br />8260B 022811011:203013 <br />CCV <br />u 25.00 <br />91.4% <br />70-130 <br />lbenzene, <br />ET <br />8260B 02OSn011:203013 <br />CCV <br />u 25.00 <br />87.5% <br />70-130 <br />!toluene 8260B 02282011:203013 <br />CCV <br />a 25.00 <br />87.3% <br />70-130 <br />n !benzene <br />8260B 02282011:203013 <br />CCV <br />n 25.00 <br />74.7% <br />70-130 <br />tyrene <br />8260B 02282011:203013 <br />CCV <br />u 25.00 <br />105% <br />70-130 <br />AME <br />8260B 011282011:203013 <br />CCV <br />ngtL 25.00 <br />125% <br />50-150 <br />ert-Butanol <br />8260B 02282011:203013 <br />CCV <br />n 125.0 <br />109% <br />50-150 <br />tert-Butylbenzene <br />8260B 021282011:203013 <br />CCV <br />u 25.00 <br />87.3% <br />70-130 <br />etrachloroeth lene (PCE) 8260B 02282011:203013 <br />CCV <br />u 25.00 <br />107% <br />70-130 <br />Toluene <br />8260B 02282011:203013 <br />CCV <br />E&I 25.00 <br />95.6% <br />80-120 <br />Toluene -d8 <br />8260B 02282011:203013 <br />CCV <br />U91L 25.00 <br />105% <br />70-130 <br />-1,2-Dichioroe2!leve 8260B 02/28/2011:203013 <br />CCV <br />UZIL 25.00 <br />99.9% <br />70-130 <br />s-1,3-Die2 <br />a 8260B 0228/2011:203013 <br />CCV <br />U91L 25.00 <br />91.9% 1 <br />70-130 <br />Trichloroethylene (TCE) 8260B 02282011:203013 <br />CCV <br />U&I 25.00 <br />95.7% <br />70-130 <br />richlorofluoromethane Rl l 8260B 02282011:203013 <br />CCV <br />u 25.00 <br />147% <br />70-130 360 <br />m 1 Acetate <br />8260B 0228/2011:203013 <br />CCV <br />u 50.00 <br />63.8% <br />50-150 <br />Vinyl Chloride <br />8260B 02282011:203013 <br />CCV <br />n 25.00 <br />120% <br />80-120 <br />Iene m, <br />8260B 02282011:203013 <br />CCV I <br />UgIL 50.00 <br />103% <br />70-130 <br />Xylem 0 <br />8260B I 02282011:203013 <br />CCV <br />u 25.00 r <br />102% <br />70-130 <br />DeSnition <br />CCV <br />Blank <br />LCS <br />BS <br />BSD <br />BSRPD <br />ND <br />: Continuing Calibration Verification - Analyzed to verify the instrument calibration is within criteria <br />: Method Blank - Prepared to verify that the preparation process is not contributing contamination to the samples. <br />: Laboratory Control Standard/Sample - Prepared to verify that the preparation process is not affecting analyte recovery. <br />: Blank Spikes - A blank is spiked with a known amount of analyte. It is prepared to verify that the preparation process is not <br />affecting analyte recovery. <br />: Blank Spike Duplicate of BS/BSD pair - A blank duplicate is spiked with a known amount of analyte. It is prepared to verify that <br />the preparation process is not affecting analyte recovery. <br />: BS/BSD Relative Percent Difference (RPD) - The BS relative percent difference is an indication of precision for the preparation <br />and analysis. <br />: Nan -detect - Result was below the DQO listed for the analyte. <br />Data Quality Objective - This is the criteria which the gRoty control data is compared. <br />'Explanation <br />310 <br />360 <br />362 <br />: LSCS above Acceptance Range (AR). Samples which were non detect for this analyte were accepted. <br />: CCV above Acceptance Range (AR). Samples which were non detect for this analyte were accepted. <br />: Surrogates are qualified on Control Chart Lamits, these are CCV limits. See individual sHyle reporm <br />Page 18 of 18 <br />