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_I = ENVIRONMENTAL C� C <br /> Analytical Chemists <br /> February 17,2011 Lab ID : STK1131274 <br /> Live Oak Geo Environmental Customer : 3-16608 <br /> Quality Control - Organic <br /> Constituent Method Date/ID Type Units Conc. QC Data DQO Note <br /> Organic <br /> 1,2-Dibromoethane(ED13) 504 02/11/2011:201629 Blank ug/L ND <0.02 <br /> LCS ug/L 0.2950 97.1 % 70-130 <br /> MS ug/L 0.2950 97.1 % 70-130 <br /> (STKI 131113-002) MSD ug/L 0.2950 99.9% 70-130 <br /> MSRPD u 0.2950 2.8% <_30 <br /> 1,3-Dibromopropane 504 02/11/2011:201629 Blank ug/1. 05868 95.1 % 70-130 <br /> LCS ug/L 05868 99.5% 70-130 <br /> MS ug/L. 0.5868 101% 70-130 <br /> (STK1131113-002) MSD ug/L 0.5868 104% 70-130 <br /> MSRPD, uRtL 1 0.2950 2.4% S30 <br /> DBCP 504 02/11/2011:201629 Blank ug/L ND <0.01 <br /> LCS ug/L 0.2950 98.3% 70-130 <br /> MS ug/L 0.2950 101% 70-130 <br /> (STKI131113-002) MSD ug/L 0.2950 103% 70-130 <br /> MSRPD u 0.2950 2.1% 530 <br /> 13DBP 504.1 02/1212011:202275 CCV ug/L 9.975 109% 70-130 <br /> CCV u 7.481 110% 70-130 <br /> gCP 504.1 021122011:202275 CCV ug/L 5.015 103% 70-130 <br /> CCV u 2.006 05% 70-130 <br /> EDB 504.1 02/12/2011:202275 CCV ug/L 5.015 104% 70-130 <br /> CCV u 2.W6 103% 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 amoum 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 /> NO :Non-detect-Result was below the DQO listed for the analyte. <br /> DQO Data quality OWective-This is the criteria against which the quality control data is compared. <br /> r� <br /> Page 5 of 6 <br /> Corporate ORlees&Laboratory Office&Laboratory Office d Laboratory Field Office, <br /> 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue Visalia,California <br /> Santa Paula,CA 93060 Stockton,CA 95215 Chive,CA 95926 TEL:559!734-9473 <br /> TEL:805/392-2000 TEL 209/942-0162 TF1:530/343-5818 Mobile:5591737-2399 <br /> FAX:805/5254172 FAX:2091942-0423 FAX:530/3433807 FAX:559/734b135 <br /> CA NELAP Certincation No.01110CA CA ELAP Certification No.1563 CA ELAP CerlHtoetbn No.2670 <br />