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ENVIRONME-riTAL <br /> e.4 \rr <br /> ANALYTICAL CHEMISTS <br /> January 8, 2008 Lab ID : STKO752387 <br /> Wong Engineers,Inc. Customer : 3-12159 <br /> Quality Control - Organic <br /> Constituent Method Dale1LD Type Units Cone. QC Data DQO Note <br /> Organic <br /> 1,3-Dibmulopropane 504 01/04/2008:200142 Blank ug/L 05868 70-130 70-130 <br /> LCS ug/L 05868 108% 70-130 <br /> BS ug/L 0.5868 111% 70-130 <br /> BSD ug/L 05868 110% 70-130 <br /> BSRPD a 0.5868 1.2% <30 <br /> 13DBP 504.1 01/05/1008:200170 CCV u97L 9.975 109% 70-130 <br /> CCV ug/L 9.975 114% 70-130 <br /> CCV ug(L 9.975 114% 70130 <br /> CCV U91L 9.975 109% 70130 <br /> DBCP 504 01/04/2008:200142 Blank ug/L ND X0.01 <br /> LCS U91L 0.2950 94.1% 70130 <br /> BS ugtL 0.2950 96.3% 70130 <br /> BSD ugIL 02950 97.1% 70130 <br /> BSRPD 11911, 0.5868 0.8% <30 <br /> 504.1 01/0512008:200170 CCV 119/1- 5.000 94.6% 70130 <br /> CCV ug/L 5.000 99.6% 70130 <br /> CCV ug/L 5.000 99.6% 70130 <br /> CCV a 10.00 105% 70130 <br /> De8nitlon <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 /> BS :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 /> BSD :Blank Spike Duplicate of BS/BSD pair-A blank duplicate is spiked with a known amount of analyte. It is prepared to verify <br /> that the preparation process is not affecting analyte recovery. <br /> BSRPD :BS/BSD Relative Percent Difference(RPD)-The BS 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 /> Corporate Offices 6 Laboratory Office&Laboratory Office a Laboratory Field Office <br /> P.O.Boz 2721853 Corporation Street 2500 Stagecoach Road 563 E.Llndo Avenue Visalia,California <br /> Santa Paula,CA 93061-0272 Stockton,CA 95215 Chico,CA 95926 TEL 559!734-9473 <br /> TEL:805/392-2000 TEL:209/942-0182 TEL:530/343-5818 Mobile:559/737-2399 <br /> FAX:805/525-4172 FAX:209/942-0423 FAX:530/343-3807 FAX:5591734-8435 <br /> CA NELAP Certification No.01110CA CA ELAP Certification No.1563 CA ELAP Cer68catwn No.2870 <br />